JP7399726B2 - Transport auxiliary equipment and radiation inspection system - Google Patents

Description

Embodiments of the present invention relate to a transport auxiliary device and a radiation examination system used when loading a baggage into or taking out a baggage from a radiation examination apparatus.

2. Description of the Related Art Packages of various sizes, shapes, and weights, such as mail, may be checked through a radiation inspection device such as an X-ray inspection device. When loading baggage into a radiation testing device, the conveyance force of the radiation testing device's conveyor pushes the baggage past obstacles such as radiation protection curtains that prevent radiation from leaking from the radiation testing device. It will be done. When a package is taken out of the radiation examination apparatus, the baggage is removed from the radiation examination apparatus by pushing aside obstacles such as a radiation protection curtain by the conveying force of the conveyor of the radiation examination apparatus.

JP 2019-109979 Publication Japanese Patent Application Publication No. 2004-69385

The problem to be solved by the present invention is to provide a transportation auxiliary device and a radiation inspection system that can prevent luggage from accumulating at the entrance or exit of a radiation inspection device such as an X-ray inspection device. .

According to the embodiment, the transport auxiliary device is used together with a radiation inspection device that inspects the test object by irradiating the test object with radiation as it is transported along the transport path in a predetermined transport direction. The transport auxiliary device includes a pushing part that pushes the upstream surface of the object to be examined downstream along the transport direction against at least one of the obstacles provided at the entrance and exit of the radiological examination apparatus to prevent leakage of radiation. have

FIG. 1 is a schematic diagram showing a baggage processing system according to a first embodiment to a fifth embodiment. The baggage processing system according to the first embodiment is a schematic diagram of a radiation inspection area including a first transport section on the upstream side, a radiation examination system, and a second transport section on the downstream side. FIG. 3 is a schematic diagram showing a state in which the first transport section on the upstream side, the radiation inspection system, and the second transport section on the downstream side are operated in the baggage processing system from the state shown in FIG. 2; FIG. 4 is a schematic diagram showing a state in which the first transport section on the upstream side, the radiation inspection system, and the second transport section on the downstream side are operated in the baggage processing system from the state shown in FIG. 3; FIG. 5 is a schematic diagram showing a state in which the first transport section on the upstream side, the radiation inspection system, and the second transport section on the downstream side are operated in the baggage processing system from the state shown in FIG. 4; FIG. 6 is a schematic diagram showing a state in which the first transport section on the upstream side, the radiation inspection system, and the second transport section on the downstream side are operated in the baggage processing system from the state shown in FIG. 5; FIG. 2 is a schematic perspective view of a first transport section on the upstream side and a radiation inspection system in the baggage processing system according to the first embodiment. 2 is a flowchart illustrating an operation of pushing a package into a protective curtain (obstruction) of a radiation inspection apparatus of a radiation inspection system of a package processing system according to the first embodiment. FIG. 1 is a schematic diagram showing a state in which the radiation inspection device of the baggage processing system according to the first embodiment is viewed from the upstream side to the downstream side along the X axis. The baggage processing system concerning the 1st modification of a 1st embodiment WHEREIN: A schematic diagram of the radiation inspection area including the 1st conveyance part on the upstream side, the radiation examination system, and the 2nd conveyance part on the downstream side. FIG. 11 is a schematic diagram showing a state in which the first transport section on the upstream side, the radiation inspection system, and the second transport section on the downstream side are operated in the baggage processing system from the state shown in FIG. 10; FIG. 12 is a schematic diagram showing a state in which the first transport section on the upstream side, the radiation inspection system, and the second transport section on the downstream side are operated in the baggage processing system from the state shown in FIG. 11; FIG. 13 is a schematic diagram showing a state in which the first transport section on the upstream side, the radiation inspection system, and the second transport section on the downstream side are operated in the baggage processing system from the state shown in FIG. 12; 7 is a flowchart illustrating an operation of pushing a baggage into a protective curtain (obstruction) of a radiation inspection apparatus of a radiation inspection system of a baggage processing system according to a first modification of the first embodiment. The baggage processing system concerning a 2nd embodiment WHEREIN: A schematic diagram of the radiation inspection area including the 1st conveyance part on the upstream side, the radiation examination system, and the 2nd conveyance part on the downstream side. FIG. 7 is a schematic perspective view of a first upstream transport section and a radiation inspection system in a baggage processing system according to a second embodiment. FIG. 7 is a schematic diagram showing a state in which the first transport section on the upstream side, the radiation inspection system, and the second transport section on the downstream side are operated in the baggage processing system according to the second embodiment. FIG. 18 is a schematic enlarged view of the position indicated by the symbol XVIII in FIG. 17; The baggage processing system concerning a 3rd embodiment WHEREIN: A schematic diagram of the radiation inspection area including the 1st conveyance part on the upstream side, the radiation examination system, and the 2nd conveyance part on the downstream side. 20 is a schematic diagram showing a state in which the upstream first transport section, the radiation inspection system, and the downstream second transport section are operated in the baggage processing system from the state shown in FIG. 19. FIG. 21 is a schematic diagram showing a state in which the upstream first transport section, the radiation inspection system, and the downstream second transport section are operated in the baggage processing system from the state shown in FIG. 20; FIG. The baggage processing system concerning the 1st modification of a 3rd embodiment WHEREIN: A schematic diagram of the radiation inspection area including the 1st conveyance part of an upstream side, a radiation inspection system, and the 2nd conveyance part of a downstream side. The baggage processing system concerning a 4th embodiment WHEREIN: A schematic perspective view of the 1st conveyance part of an upstream side, a radiation inspection system, and the 2nd conveyance part of a downstream side. In the baggage processing system according to the fifth embodiment, a schematic diagram of the first transport section on the upstream side, the radiation inspection system, and the second transport section on the downstream side. The baggage processing system concerning the 1st modification of a 5th embodiment WHEREIN: Schematic diagram of the 1st conveyance part on the upstream side, the radiation inspection system, and the 2nd conveyance part on the downstream side. The baggage processing system concerning the 2nd modification of a 5th embodiment WHEREIN: Schematic diagram of the 1st conveyance part on the upstream side, the radiation inspection system, and the 2nd conveyance part on the downstream side. The baggage processing system concerning the third modification of a 5th embodiment WHEREIN: Schematic diagram of the 1st conveyance part of an upstream side, a radiation inspection system, and the 2nd conveyance part of a downstream side.

The transport assist device 34 of the radiation inspection system 24 according to the first embodiment will be explained using FIGS. 1 to 9.

As shown in FIG. 1, the radiation inspection system 24 according to this embodiment is used as part of a package processing system 10 that processes packages such as mail. The baggage processing system 10 includes, for example, a baggage registration area 12, a radiation inspection area 14, and a post-inspection transport area 16. Although not shown, a baggage collection area may exist upstream of the baggage registration area 12. Upstream of the radiation inspection area 14, there is a baggage registration area 12. On the downstream side of the radiation examination area 14, there is a post-examination transport area 16.

Here, in order to simplify the explanation, it is assumed that the transport direction D of the baggage is a straight line parallel to the floor surface. Then, the X-axis is taken along the transport direction D of the cargo, the Z-axis is taken in the vertical direction, and the Y-axis is taken in the direction perpendicular to the X-axis and the Z-axis.

The cargo registration area 12 includes a plurality of first transport sections (upstream transport sections) 22 . The first transport unit 22 exists across the baggage registration area 12 and the radiation inspection area 14 of the baggage processing system 10 .

The baggage processing system 10 photographs the baggage and measures its weight, for example, on the plurality of first transport units 22 in the baggage registration area 12 . The baggage processing system 10 stores, in the baggage registration area 12, information regarding, for example, the size, shape, and weight of the baggage (examination object) to be transported from the baggage registration area 12 to the radiation inspection system 24, and the radiation inspection system 24. information regarding the order in which packages are transported. That is, in the baggage registration area 12, each baggage is recognized and registered by the baggage processing system 10.

In the baggage registration area 12, the baggage can be moved from one first conveyance part 22 to a different first conveyance part 22 by a conveyance part 23 that intersects with the first conveyance part 22.

The radiation inspection area 14 includes a radiation inspection system 24 on the downstream side of the first transport section 22 that inspects the inside of the baggage using radiation such as X-rays.

The radiation examination area 14 includes a plurality of second transport parts (downstream transport parts) 26 in addition to the plurality of first transport parts 22 . A radiation inspection system 24 is provided between the second transport section 26 on the downstream side and the first transport section 22 on the upstream side. The first transport section 22 and the second transport section 26 can be part of a radiological examination system 24.

The second conveyance section 26 exists across the radiation examination area 14 and the post-examination conveyance area 16 of the baggage processing system 10 . The second transport section 26 transports the cargo to the post-inspection transport area 16. In the post-inspection transport area 16 , the cargo can be moved from one second transport section 26 to a different second transport section 26 by a transport section 27 that intersects with the second transport section 26 . In the post-inspection transport area 16, one baggage is selected from the plurality of second transport units 26 for each destination, for example. The destination includes not only various destinations, but also equipment for checking baggage again.

The first transport section 22 and the second transport section 26 are preferably connected to a control section 38, which will be described later, by wire or wirelessly. The control unit 38 controls the speed of the transport surfaces of the first transport unit 22 and the second transport unit 26. It is preferable that the control unit 38 controls the moving speed of the conveying surface of the second conveying section 26 to be faster than the moving speed of the conveying surface 45 of the conveyor 44 of the radiation examination apparatus 32, which will be described later.

The first conveyance section 22 and the second conveyance section 26 can use various conveyors such as a roller conveyor and a belt conveyor.

As shown in FIGS. 2 to 6, the radiological examination system 24 includes a radiological examination apparatus 32, a transport auxiliary apparatus 34 disposed upstream with respect to the radiation examination apparatus 32, and a downstream end of the first transport section 22. It has a baggage detection device (sensor unit) 36 disposed upstream of the section and near the downstream end, and a control section 38. The sizes of the packages P11, P12, P13, P14, and P15 in FIGS. 2 to 6 may be the same or different.

As the radiation inspection device 32 in this embodiment, a known device can be used as appropriate. An example of the radiation inspection device 32 is an X-ray inspection device. In general, the radiation inspection apparatus 32 includes a base 42, a conveyor 44 that conveys the baggage in a predetermined direction D with respect to the base 42, a radiation generator 46, a line sensor 48, a shielding box (tunnel) 50, and a radiation It has protective curtains (obstacles) 52 and 54.

The base 42 is installed on the floor or movably fixed to the floor using casters or the like. The base 42 is formed of, for example, a plurality of layers of iron plate or the like with an appropriate thickness in order to prevent radiation from leaking to the outside.

The shielding box 50 is formed in a tunnel shape above the base 42. The shielding box 50 cooperates with the base 42 to form the exterior of the radiological examination device 32. The shielding box 50 is formed of, for example, a plurality of layers of iron plates having an appropriate thickness in order to prevent radiation from leaking to the outside. The conveyor 44 of the radiation inspection device 32 is arranged to pass through an entrance 50a and an exit 50b of a tunnel-shaped shielding box 50. The entrance 50a of the shielding box 50 is also the entrance of the radiation testing device 32, and the exit 50b of the shielding box 50 is also the exit of the radiation testing device 32. The conveyor 44 of the radiation inspection device 32 is formed as an endless belt made of, for example, a rubber material or a resin material. The conveying direction D of the conveying surface 45 of the conveyor 44 is determined to be a predetermined direction. The upstream end of the conveyor 44 of the radiation examination device 32 is located upstream of the entrance 50a of the shielding box 50. The downstream end of the conveyor 44 of the radiation inspection device 32 is located downstream of the outlet 50b of the shielding box 50. Thus, the upstream and downstream ends of the conveyor 44 protrude outward from the base 42 and the shielding box 50.

A line sensor 48 for detecting radiation is disposed, for example, on the ceiling and inner wall of the shielding box 50. The line sensor 48 extends in a direction perpendicular to the transport direction D.

The radiation generator 46 is disposed on the base 42, for example. The radiation generator 46 emits radiation such as X-rays toward the conveyor 44 and the line sensor 48 when inspecting the object. The radiation inspection device 32 obtains an image of the contents of the baggage using the line sensor 48 .

The entrance 50a of the shielding box 50 cooperates with the conveyance surface 45 of the conveyor 44 and is formed, for example, as a substantially rectangular opening. A protective curtain (upstream obstacle) 52 is hung at the entrance 50a of the shielding box 50. Each strip 52a is continuous between the upper end of the inlet 50a and the conveying surface 45 of the conveyor 44. Preferably, the lower end of each strip 52a slightly contacts the conveying surface 45 of the conveyor 44. The protective curtain 52 is suspended from the upper edge of the entrance 50a of the shielding box 50, and has a plurality of strips 52a having a radiation blocking function. The plurality of strips 52a of the protective curtain 52 are arranged without gaps in the Y-axis direction perpendicular to the conveyance direction (X-axis direction) D. The protective curtain 52 prevents radiation generated from the radiation generator 46 from directly leaking to the outside of the shielding box 50 through the entrance 50a, and also shields radiation reflected by the luggage and the inner wall of the shielding box 50 through the entrance 50a. This prevents leakage to the outside of the box 50.

Each strip 52a of the protective curtain 52 is formed of a lead rubber plate in which powdered lead is dispersed in a rubber material, for example. The protective curtain 52 can be made of a metal material that exhibits a radiation shielding effect, such as SUS or tungsten, instead of lead. In any case, since each strip 52a of the protective curtain 52 needs to shield radiation, it is heavier than a curtain made of a simple rubber plate or the like that does not contain lead or the like.

The outlet 50b of the shielding box 50 cooperates with the conveyance surface 45 of the conveyor 44 and is formed, for example, as a substantially rectangular opening. A protective curtain (downstream obstacle) 54 is hung from the upper edge of the exit 50b of the shielding box 50. The protective curtain 54 is formed similarly to the protective curtain 52.

The control unit 38 is connected to the conveyance auxiliary device 34 and the baggage detection device 36 by wire or wirelessly. The control unit 38 can control the conveyance assisting device 34 and the baggage detection device 36 as appropriate. The control unit 38 is located in the radiation examination area 14, for example. The control unit 38 may be placed outside the radiation examination area 14. In FIG. 1, the radiation examination area 14 is illustrated as having one control unit 38, but in this embodiment, each radiation examination system 24 will be described as having the control unit 38.

In the control unit 38, for example, a CPU loads a control program stored in a memory such as a ROM into a RAM and executes the control program. The control unit 38 supplies the program to the transport auxiliary device 34 and the baggage detection device 36 via the network, and one or more processors in the computers of the transport auxiliary device 34 and the baggage detection device 36 read and execute the program. is also possible. The control of the control unit 38 can also be realized by a circuit (eg, ASIC) that realizes one or more functions.

The conveyance auxiliary device 34 has a pushing part (pushing mechanism) 60 that pushes the cargo into the protective curtain 52. The pushing section 60 includes an upstream auxiliary conveyor (auxiliary conveyor section) 62 having a conveying surface (upstream conveying surface) 64, and one or more projections (pushing section) 66 provided on the conveying surface 64 of the auxiliary conveyor 62. and has. The auxiliary conveyor 62 is formed as an endless belt made of, for example, a rubber material or a resin material. In this embodiment, projections (protrusions) 66 are arranged at two locations on the transport surface 64 of the auxiliary conveyor 62 that are spaced apart in the transport direction (X-axis direction). It is preferable that the protrusions 66 are located at positions farthest apart from each other on the conveying surface 64. The protrusion 66 may be provided at one location on the conveyance surface 64 of the auxiliary conveyor 62, or may be provided at three or more locations. The conveyance auxiliary device 34 is configured such that the rear end of the cargo is disposed between projections 66 spaced apart in the X-axis direction.

As shown in FIG. 7, the protrusions 66 are not only located at positions spaced apart in the conveying direction of the conveying surface 64, but also have a plurality of protrusions in a direction (Y-axis direction) perpendicular to the moving direction (conveying direction) D of the conveying surface 64. It is preferable that they are lined up. Maintenance of each protrusion 66 is easier because short protrusions 66 are arranged in a row rather than one protrusion 66 being long in the Y-axis direction. In FIG. 7, the protrusions 66 are arranged in the Y-axis direction, but they are not only arranged in the Y-axis direction, but the central protrusion 66 is shifted in the X-axis direction with respect to the side protrusions 66. It may be in any position. In FIG. 7, three protrusions 66 are lined up in the Y-axis direction, but there may be one or two, or four or more protrusions may be lined up.

For example, the heights of the plurality of protrusions 66 arranged in the Y-axis direction may be the same height, or some of them may be different heights. In this case, protrusions 66 of various heights can be used to push the load into the protective curtain 52.

The protrusion 66 is made of, for example, a hard rubber material, a resin material, or the like. The height of the protrusion 66 relative to the conveying surface 64 can be set as appropriate. If the height of the protrusion 66 is low, there is a possibility that the cargo may climb over the protrusion 66 and rest on the protrusion 66. It is preferable that the height of the protrusion 66 is, for example, approximately half the height of the cargo to be transported. Depending on the height of the protrusion 66, a gap is required to allow the protrusion 66 to pass between the first conveyance unit 22 and the auxiliary conveyor 62 and between the auxiliary conveyor 62 and the conveyor 44 of the radiation inspection device 32. For this reason, it is preferable that the height of the upstream end of the conveying surface 64 of the auxiliary conveyor 62 is lower than the height of the downstream end of the first conveying section 22 . Similarly, it is preferable that the height of the upstream end of the conveyor 44 is lower than the height of the downstream end of the conveyance surface 64 of the auxiliary conveyor 62.

The control unit 38 controls the operation of the conveying surface 64 of the auxiliary conveyor 62. The control unit 38 can control the operation of the conveyance surface 64 of the auxiliary conveyor 62, for example, so that the protrusion 66 is disposed at the upstream end of the conveyance surface 64. That is, the control section 38 can intentionally arrange the protrusion 66 in the gap between the downstream end of the first conveying section 22 and the upstream end of the conveying surface 64 of the auxiliary conveyor 62.

In this embodiment, the distance between the downstream end of the auxiliary conveyor 62 and the entrance 50a of the shielding box 50 or the protective curtain 52 is smaller than the length along the X-axis direction of the smallest load expected to be transported. is suitable. In this embodiment, the distance between the protective curtain 52 and the upstream end of the conveyance surface 45 of the conveyor 44 of the radiological examination apparatus 32 that protrudes upstream from the protective curtain 52 is formed as small as possible.

The distance between the outlet 50b of the shielding box 50 or the protective curtain 54 and the downstream end of the conveyance surface 45 of the conveyor 44 of the radiological examination device 32 that protrudes downstream from the protective curtain 54 is, for example, The distance is approximately the same as the distance between the entrance 50a or the protective curtain 52 and the upstream end of the conveyance surface 45 of the conveyor 44 of the radiation inspection device 32 that protrudes upstream from the entrance 50a of the shielding box 50 or the protective curtain 52. has been done.

The cargo detection device 36 includes a light projecting section 72 and a light receiving section 74 so as to sandwich the first transport section 22 therebetween. The baggage detection device 36 is controlled by the control unit 38 and detects the front end and rear end of each baggage that is transported from the first transport unit 22 toward the radiation inspection device 32. The baggage detection device 36 has a plurality of light projecting sections 72 and light receiving sections 74, so that it can detect the front and rear ends of parcels of various heights and shapes.

The operation of the radiation inspection system 24 of the baggage processing system 10 will be explained using the flowchart shown in FIG. In particular, a description will be given of a pushing operation in which a load to be transported from the first transport section 22 toward the radiation examination apparatus 32 is pushed into the protective curtain 52 of the radiation examination apparatus 32.

A gap is formed between the downstream end of the first conveying section 22 and the upstream end of the conveying surface 64 of the auxiliary conveyor 62 to allow the protrusion 66 to pass through, and the cargo is transferred from the first conveying section 22 to the auxiliary conveyor 62. In order to transfer to the conveying surface 64, the height of the upstream end of the conveying surface 64 of the auxiliary conveyor 62 is made lower than the height of the downstream end of the first conveying section 22. Similarly, the height of the upstream end of the conveyor 44 is made lower than the height of the downstream end of the conveying surface 64 of the auxiliary conveyor 62. The conveyance direction and conveyance height of the conveyance surface 45 of the conveyor 44 of the radiation inspection apparatus 32 are made to substantially match the conveyance direction and conveyance height at the upstream end of the second conveyance section 26. The radiation inspection system 24 is used in this state. Here, under the control of the control unit 38, the radiation examination system 24 makes the transport speed of the second transport unit 26 faster than the speed of the transport surface 45 of the conveyor 44 of the radiation examination apparatus 32.

The baggage processing system 10 measures the size, shape, and weight of the baggage to be transported from the baggage registration area 12 to the radiation inspection system 24 in the baggage registration area 12, obtains information about the baggage, and measures the size, shape, and weight of the baggage to be transported from the baggage registration area 12 to the radiation inspection system 24. A destination is selected from a plurality of radiological examination systems 24. The baggage processing system 10 electronically numbers the baggage destined for its destination, the radiological examination system 24. The packages are transported toward the radiation inspection system 24 in the order of numbers determined by the package processing system 10. The loads P11, P12, P13, P14, and P15 shown in FIGS. 2 to 6 are conveyed downstream by the first conveyance section 22, for example, at the same pitch.

The baggage detection device 36 of the radiation inspection system 24 detects the front and rear ends of each baggage P11, P12, P13, P14, and P15 transported by the first transport unit 22 near the downstream end of the first transport unit 22. Detect. The control unit 38 determines whether each of the packages P11, P12, P13, P14, and P15 has passed through the package detection device 36 (S11). Based on the detection time of the front end and the rear end of each baggage P11, P12, P13, P14, P15 by the baggage detection device 36 and the conveyance speed of the first conveyance unit 22, the control unit 38 determines whether each baggage P11, P12, P13, P14, Recognize the length of P15 along the X-axis direction. The control unit 38 may obtain information regarding the shape and size obtained from the luggage registration area 12 and recognize the length along the X-axis direction. In this case, the baggage detection device 36 only needs to be able to detect the time when the rear end of the baggage passes.

The control unit 38 adjusts the operation timing of the conveyance surface 64 of the auxiliary conveyor 62 with respect to the timing of delivery of cargo from the first conveyance section 22 to the conveyance surface 64 of the auxiliary conveyor 62 due to the operation of the first conveyance section 22. . Specifically, when the rear end of a certain cargo moves from the first conveyance section 22 onto the conveyance surface 64 of the auxiliary conveyor 62, the control section 38 causes the protrusion 66 to align with the downstream end of the first conveyance section 22. The position of the conveyance surface 64 of the auxiliary conveyor 62 is adjusted so that it is in a gap between it and the upstream end of the conveyance surface 64 of the auxiliary conveyor 62 (S12).

For example, as shown in FIGS. 2 and 3, the radiographic inspection system 24 transfers the cargo from the first conveyance section 22 to the conveyance surface 64 of the auxiliary conveyor 62 of the conveyance auxiliary device 34 at the downstream end of the first conveyance section 22. hand it over to The control unit 38 determines whether the front end of the baggage is placed on the conveyance surface 64 of the auxiliary conveyor 62 based on the conveyance speed of the first conveyance unit 22 and the time taken for the baggage to pass through the baggage detection device 36 (S13). For example, the auxiliary conveyor 62 is operated immediately after the front end of the package is placed on the conveyance surface 64 of the auxiliary conveyor 62 (S14). As shown in FIG. 2, the protrusion 66 is located at the rear of the luggage P13.

As shown in FIG. 2, due to the conveyance force of the conveyance surface 64 of the auxiliary conveyor 62 and the conveyance surface 45 of the conveyor 44 of the radiological examination apparatus 32, for example, the cargo P13 comes into contact with the protective curtain 52. The weight of the baggage P13 that came into contact with the protective curtain 52 is so light that the protective curtain 52 cannot be pushed away, and the baggage P13 slides on the conveyance surface 64 of the auxiliary conveyor 62 and the conveyor 44 of the radiation inspection device 32, causing the shielding box It is assumed that the baggage P13 remains outside the bag 50.

Since the cargo P13 is sliding on the conveyance surface 64 of the auxiliary conveyor 62, the protrusion 66 of the conveyance auxiliary device 34 moves in accordance with the movement of the conveyance surface 64 and comes into contact with the protective curtain 52, as shown in FIG. The loaded cargo P13 is pressed along the transport direction D from the upstream side to the downstream side.

As shown in FIG. 4, the front end of the package P13 pushed from behind by the protrusion 66 of the conveyance auxiliary device 34 pushes away the protective curtain 52 and is conveyed by the conveyance surface 45 of the conveyor 44 of the radiographic inspection device 32, causing the front end of the package P13 to move toward the shielding box 50. Go inside. The rear end of the package P13, which has pushed away the protective curtain 52, enters the shielding box 50 by being conveyed by the conveyance surface 45 of the conveyor 44 of the radiation inspection device 32.

Thereafter, it is determined whether the protrusion 66 at the rear of the cargo P13 has reached the downstream end of the auxiliary conveyor 62 (S15). Once the protrusion 66 at the rear of the cargo P13 reaches the downstream end of the auxiliary conveyor 62, the operation of the auxiliary conveyor 62 is stopped (S16).

After the rear end of the package P13 enters the shielding box 50 and the protective curtain 52 is closed, the radiation inspection device 32 emits radiation from the radiation generator 46 and receives the radiation with the line sensor 48. The radiation inspection device 32 obtains an image of the luggage P13, for example.

It should be noted that compared to the length of the conveying surface 64 of the auxiliary conveyor 62 along the X-axis direction or the distance between the downstream end of the first conveying section 22 and the upstream end of the conveyor 44 of the radiation inspection device 32, If the length is long, the load may rest on one of the protrusions 66 spaced apart in the transport direction D. By moving the conveying surface 64 of the auxiliary conveyor 62 in the conveying direction D, the air is removed from the gap between the downstream end of the conveying surface 64 of the auxiliary conveyor 62 and the upstream end of the conveyor 44 of the radiographic inspection device 32. The protrusion 66 moves downwards and another protrusion 66 is located at the rear of the load. When the baggage P13 is transferred from the first conveyance unit 22 to the conveyance surface 64 of the auxiliary conveyor 62, the radiation inspection system 24 maintains the attitude of the baggage P13. The baggage processing system 10 maintains the distance between the bags by adjusting the moving speeds of the first conveying section 22 and the conveying surface 64 of the auxiliary conveyor 62.

In this way, the radiation inspection device 32 prevents the luggage P13 from staying at the entrance 50a of the shielding box 50. The attitude of the luggage P13 is changed, such as rotating while in contact with the protective curtain 52, and the luggage P13 is prevented from staying in a state in contact with the protective curtain 52. Therefore, the cargo P14, which is transported after the cargo P13 in the first transport section 22, is prevented from entering the shielding box 50 first. Therefore, the packages pass through the entrance 50a of the shielding box 50 of the radiation inspection device 32 in the order determined by the package processing system 10 in the package registration area 12.

For example, as shown in FIGS. 3 and 4, the cargo P12 in the shielding box 50 is lightweight and cannot push away the protective curtain 54 on the downstream side, causing the cargo P12 to slip on the conveyor 44 of the radiation inspection device 32. It is assumed that the baggage P12 remains at the exit 50b of the shielding box 50.

As shown in FIG. 5, another baggage P13 that has undergone a radiation examination is brought into contact with the baggage P12 that has been subjected to a radiation examination from behind. The plurality of loads P12 and P13 press the protective curtain 54 together and push the protective curtain 54 away as shown in FIG. The plurality of packages P12 and P13 push aside the protective curtain 54 and exit the shielding box 50 together.

In this way, the objects (baggage) registered in the baggage registration area 12 pass through the radiation examination system 24 in the order in which they are transported to the radiation examination system 24.

The conveying speed of the second conveying section 26 is faster than the conveying speed of the conveying surface 45 of the conveyor 44 of the radiation inspection apparatus 32. When the preceding baggage P12 is delivered from the conveyor 44 of the radiation examination device 32 to the second conveyance section 26, the plurality of parcels P12 and P13 are separated.

By repeating such operations, in particular, the conveyance auxiliary device 34 prevents the baggage from staying at the entrance 50a of the radiation shielding box 50, and the baggage is allowed to flow along the conveyor 44 in a predetermined conveyance direction. The control unit 38 operates the conveyance auxiliary device 34 to sequentially push the cargo against the protective curtain 52, for example, at a predetermined pitch.

In this way, the radiation inspection system 24 according to the present embodiment uses the conveyance auxiliary device 34 to press the baggage from behind with the protrusion 66 fixed to the conveyance surface 64 of the auxiliary conveyor 62, thereby transporting each baggage to the radiation examination device. 32 shielding boxes 50. Therefore, it is possible to prevent the cargo from accumulating at the entrance 50a of the shielding box 50. Then, the radiation inspection system 24 can perform the radiation inspection of each baggage in the same order as they were conveyed by the first conveyance unit 22.

The two protrusions 66 are located at the most distant positions in the X-axis direction on the conveying surface 64 of the auxiliary conveyor 62. This prevents one item from being placed on both of the two protrusions 66 at the same time. For example, by adjusting the position of the protrusion 66 of the auxiliary conveyor 62 with respect to the position of the rear end of the load at the downstream end of the first conveyance section 22, the rear end of the load is placed on the conveyance surface 64 of the auxiliary conveyor 62. When the item is placed, the protrusion 66 can be reliably placed at the rear of the item.

The radiation examination system 24 according to this embodiment can use a known radiation examination apparatus 32 as is. Of course, it is also possible to use a new radiation inspection apparatus 32 having the configuration described above, for example.

The radiation inspection system 24 can take out the packages P from the shielding box 50 in the same order as they were transported by the first transport section 22 (in the order of P11, P12, P13, P14, and P15). At this time, the conveyance speed of the second conveyance section 26 is made faster than the conveyance speed of the conveyance surface 45 of the conveyor 44 of the radiation examination apparatus 32, thereby preventing the plurality of packages from being unintentionally integrated.

As shown in FIG. 9, the protective curtain 52 has a plurality of strips 52a suspended from the upper edge of the entrance 50a of the shielding box 50. Each strip 52a contains, for example, lead to shield radiation and has an appropriate weight. A sheet-like member (frictional resistance reducing material) 52b is attached to the side of each strip 52a facing outside of the shielding box 50. As the sheet-like member 52b, a sheet made of a resin material, such as a fluororesin film, having adhesiveness on one side is used. It is preferable that the sheet-like member 52b prevents charging. It is preferable that the sheet-like member 52b is attached to a position including the lower end of each strip 52a. Although it is preferable that the sheet-like member 52b be attached to a position that includes the lower end of the strip 52a, it is not necessary that it be attached to a position that includes the upper end. The upper end of the sheet-like member 52b depends on the height of the baggage intended to be inspected by the radiation inspection apparatus 32.

The frictional resistance that occurs when the load contacts the sheet-like member 52b is lower than the frictional resistance that occurs when the load directly contacts the strip 52a of the protective curtain 52. Therefore, the sheet-like member 52b lowers the frictional resistance with the load than when the load is in direct contact with the strip 52a of the protective curtain 52, and allows the movement of the conveyance surface 45 of the conveyor 44 and the rotation and retention of the load by the protective curtain 52. suppress.

Note that the lower end of the sheet-like member 52b, which comes into contact with cargo a lot, may be formed into a hemispherical shape that is convex toward the upstream side, for example. When the lower end of the sheet-like member 52b is hemispherical, when a load comes into contact with the lower end of the sheet-like member 52b, the contact area is smaller than when the lower end of the strip 52a is flat. The pressing force exerted by the load on each strip 52a does not affect the presence or absence of the sheet-like member 52b. Since the sheet-like member 52b having a hemispherical lower end receives the pressure of the cargo over a small area, it is easy to swing the lower end of the strip 52a. Therefore, the luggage tends to push the protective curtain 52 away. The shape of the lower end of the sheet-like member 52b, which comes into contact with the baggage a lot, may be any shape as long as it can reduce the area of contact with the baggage. Therefore, the sheet-like member 52b can suppress the accumulation of luggage at the entrance 50a of the shielding box 50 of the radiation inspection apparatus 32.

It is preferable that the sheet-like member 52b is also attached to the inside of the protective curtain 54 on the exit 50b side of the shielding box 50, where it will surely come into contact with the cargo. Therefore, the sheet-like member 52b can prevent luggage from accumulating at the exit 50b of the shielding box 50 of the radiation examination apparatus 32.

According to the present embodiment, the conveyance auxiliary device 34 inspects the load (test object) by irradiating radiation onto the load (test object) that is transported in the predetermined transport direction D on the conveyor (transport path) 44. It is used together with the radiation inspection device 32. The transport auxiliary device 34 moves the load (examination object) in the transport direction toward at least one of radiation protection curtains (obstacles) 52 and 54 provided at the entrance 50a and exit 50b of the radiation inspection device 32 to prevent leakage of radiation. It has a pushing part 60 that is pushed in along the direction D.

As described above, according to the present embodiment, it is possible to provide the transport auxiliary device 34 and the radiation inspection system 24 that can prevent luggage from staying at the entrance 50a of the radiation inspection device 32 such as an X-ray inspection device. can.

(First modification)
A first modification of the first embodiment will be described using FIGS. 10 to 14.

As shown in FIGS. 10 to 13, the conveyance auxiliary device 34 includes a pushing section (pushing mechanism) 80 that pushes the cargo into the protective curtain 52. As shown in FIGS. The pushing part 80 includes a first rail (actuator) 82 extending along the conveyance direction D (X-axis direction), a second rail (actuator) 84 extending along the up-down direction (Z-axis direction), and a second rail 84. It has a pressing part 86 provided at.

The first rail 82 is supported, for example, by a frame 88 above the first transport section 22. Preferably, the frame 88 is on the first transport section 22 between the load sensing device 36 and the shielding box 50. The first rail 82 may be supported by the radiation shielding box 50 or the ceiling. The first rail 82 extends in the X-axis direction and is movable in the Z-axis direction (vertical direction).

The second rail 84 is movable along the X-axis direction with respect to the first rail 82 while extending in the Z-axis direction (vertical direction). The second rail 84 is supported by, for example, a frame 88 via the first rail 82. The first rail 82 and the second rail 84 each move, for example, linearly relative to the frame 88.

The pressing portion 86 moves in a direction toward and away from the radiation protection curtain 52 at the entrance 50a of the radiation shielding box 50 (a direction in which it approaches the radiation protection curtain 52 at the entrance 50a, and a direction away from the radiation protection curtain 52 at the entrance 50a). It is movable in the direction of approaching and leaving the conveyor 44 of the radiation examination apparatus 32 or the first conveyance part 22 (the direction of approaching the conveyor 44 or the first conveyance part 22 of the radiation examination apparatus 32, and the direction of the radiation It is possible to move in a direction away from the conveyor 44 of the inspection device 32 or the first conveyance section 22). The direction in which the entrance 50a approaches and leaves the radiation protection curtain 52 and the direction in which the radiation inspection device 32 approaches and leaves the conveyor 44 or the first conveyance section 22 are directions that intersect with each other.

The pushing part 80 may have a third rail movable in the Y-axis direction, for example, together with the first rail 82 and the second rail 84.

In the first modification, the conveyance auxiliary device 34 has a pushing section 60 that pushes the cargo between the downstream end of the first conveying section 22 and the upstream end of the conveyor 44 of the radiological examination device 32. It is also possible to have it or not. Here, a case will be described as an example in which the downstream end of the first conveyance section 22 and the upstream end of the conveyor 44 of the radiation examination apparatus 32 are adjacent to each other and the push-in section 60 is not present.

Note that the heights of the conveyance surfaces 45 of the conveyors 44 of the first conveyance section 22 and the radiation examination apparatus 32 are determined to be in predetermined states. When the first rail 82 and the second rail 84 are moved relative to the frame 88, the lower end of the pressing section 86 is prevented from coming into contact with the first conveying section 22 and the conveyor 44 of the radiation inspection apparatus 32.

The operation of the radiation inspection system 24 of the baggage processing system 10 will be explained using the flowchart shown in FIG. 14. In particular, the pushing operation of pushing the baggage into the protective curtain 52 of the radiation inspection apparatus 32 will be described.

It is assumed that the position of the pushing part 80 shown in FIG. 10 is the initial position of the first rail 82, the second rail 84, and the pressing part 86. In the initial position, the first rail 82 is located above in the Z-axis direction, the second rail 84 is located on the upstream side, and the cargo can pass below the pressing portion 86. It is assumed that the position of the pushing part 80 shown in FIG. 12 is the stopping position (predetermined position) of the first rail 82, the second rail 84, and the pressing part 86.

As described in the first embodiment, the control section 38 of the radiation inspection system 24 uses the cargo detection device 36 to detect the rear end of the cargo P21 near the downstream end of the first transport section 22. The control unit 38 calculates the rear end position of the moving cargo P21 at each time based on the transport speed of the first transport unit 22.

The baggage detection device 36 of the radiation inspection system 24 detects the front end and rear end of the baggage transported by the first transport section 22 near the downstream end of the first transport section 22 . The control unit 38 determines whether the baggage has passed the baggage detection device 36 (S21).

It is assumed that the push-in portion 80 is at the initial position (S22). As shown in FIG. 10, the cargo P21 placed on the first conveyance section 22 moves toward the conveyor 44 of the radiation examination apparatus 32 and the protective curtain 52. The control unit 38 determines whether the rear end of the package P21 has passed below the pressing unit 86 (S23).

The control unit 38 calculates the X-axis and Z-axis coordinates of the rear end of the luggage at a certain time. The control unit 38 operates the first rail 82 and the second rail 84 immediately after the rear end of the luggage P21 passes under the pressing unit 86, and moves the pressing unit 86 toward the rear end of the luggage P21. . The control unit 38 moves the pressing unit 86 toward the X-axis and Z-axis coordinates where the rear end of the package is located at a certain time.

As shown in FIG. 11, the control section 38 brings the pressing section 86 into contact with the rear end of the package P21 (S24). Then, the control unit 38 moves the first transport unit 22 and the second rail 84 at the same speed along the transport direction D.

As shown in FIG. 12, the control unit 38 pushes away the protective curtain 52 and puts the luggage P21 into the shielding box 50 by assisting the movement of the luggage P21 toward the protective curtain 52 by moving the pressing unit 86. The control unit 38 stops the pressing unit 86 at a stop position where it does not come into contact with the shielding box 50 and the protective curtain 52. The pressing portion 86 and the cargo P21 are separated (S25).

As shown in FIG. 13, the control unit 38 moves the second rail 84 upward with respect to the first rail 82, moves the pressing unit 86 upward, and moves the second rail 84 in the opposite direction to the conveying direction D. direction, and is stopped at the initial position on the first transport section 22 (S26). Thereafter, the series of operations shown in FIGS. 10 to 13 are repeated. The control unit 38 operates the conveyance auxiliary device 34 to sequentially push the cargo against the protective curtain 52, for example, at a predetermined pitch.

Therefore, each piece of luggage is reliably pushed into the shielding box 50 by pushing aside the protective curtain 52 by the pushing part 80.

Note that after pressing a certain baggage with the pressing part 86, if the pressing part 86 cannot return to the initial position in order to press the next baggage, the conveying speed of the first conveying part 22 is adjusted (S27). This includes stopping the first transport section 22.

In this way, according to the radiation inspection system 24 according to the present modification, the pressing part 86 of the pushing part 80 chases the baggage, brings the pressing part 86 close to or in contact with the rear end of the baggage, and then moves the pressing part 86 to a predetermined position. , the rear end is pressed at the same speed as the transport speed of the first transport section 22. Therefore, the baggage can be reliably placed in the shielding box 50 of the radiation inspection apparatus 32, and the baggage can be prevented from staying at the entrance 50a of the shielding box 50. Then, the radiation inspection system 24 can perform the radiation inspection of each baggage in the same order as they were conveyed by the first conveyance section 22 (in the order of P21 and P22).

Also in this modification, the known radiation inspection apparatus 32 can be used as is. In this modification, it is also possible to use a new radiation inspection device 32.

According to this modification, the conveyance auxiliary device 34 inspects the load (test object) by irradiating radiation onto the load (test object) being transported on the conveyor (transport path) 44 in a predetermined transport direction D. It is used together with the radiation inspection device 32. The transport auxiliary device 34 has a pushing part 80 that pushes the load (examination object) along the transport direction D into a radiation protection curtain 52 provided at the entrance 50a of the radiation examination apparatus 32 and which prevents leakage of radiation.

According to this modification, it is possible to provide the transport auxiliary device 34 and the radiation examination system 24 that can prevent luggage from staying at the entrance 50a of the radiation examination apparatus 32.

(Second embodiment)
Next, a second embodiment will be described using FIGS. 15 to 18. This embodiment is a modification of the first embodiment including a first modification. The same members or members having the same functions as those described in the first embodiment are given the same reference numerals as much as possible, and the description thereof will be omitted.

The radiation inspection system 24 of this embodiment changes the positions of the protective curtains 52 and 54 arranged at the entrance 50a and the exit 50b of the shielding box 50 described in the first embodiment. As shown in FIGS. 15 and 16, in this embodiment, the protective curtains are removed from the entrance 50a and the exit 50b of the shielding box 50 of the radiation inspection apparatus 32. Also in this embodiment, a known radiation inspection device 32 can be used. In this embodiment, it is also possible to use a new radiation inspection device 32.

The radiation inspection system 24 includes a radiation inspection device 32, a first transportation auxiliary device (upstream transportation auxiliary device) 34, a second transportation auxiliary device (downstream transportation auxiliary device) 134, a baggage detection device 36, and a control section. 38.

A first conveyance auxiliary device (upstream conveyance auxiliary device) 34 is provided between the downstream end of the first conveyance section 22 and the upstream end of the conveyor 44 of the radiation examination apparatus 32 . A second conveyance auxiliary device (downstream conveyance auxiliary device) 134 is provided between the downstream end of the conveyor 44 of the radiation inspection device 32 and the upstream end of the second conveyance section 26 .

The first transport auxiliary device 34 includes an upstream box (box portion) 56, an upstream radiation protection curtain (upstream obstacle) 52, and a first push-in portion 60.

The first pushing section 60 includes an upstream first auxiliary conveyor 62 having a conveying surface 64 and an upstream projection (pushing section) 66 .

The upstream box 56, like the shielding box 50, is formed in a tunnel shape. Like the shielding box 50, the upstream box 56 is formed of, for example, a plurality of layers of iron plates of appropriate thickness in order to prevent radiation from leaking to the outside. The upstream box 56 extends from the entrance 50a of the radiation shielding box 50 to the upstream side in the conveyance direction from the downstream end of the first auxiliary conveyor 62 on the upstream side.

The upstream entrance 56a of the upstream box 56 is formed, for example, as a substantially rectangular opening in cooperation with the conveyance surface 64 of the first auxiliary conveyor 62 on the upstream side. A protective curtain 52 is hung from the upper edge of the entrance 56a of the upstream box 56. The lower end of the protective curtain 52 slightly contacts the conveying surface 64 of the first auxiliary conveyor 62 on the upstream side. The outlet 56b of the upstream box 56 is fixed to the upstream end surface of the shielding box 50. Radiation is prevented from leaking from the connection position between the upstream box 56 and the radiation shielding box 50.

The second transport auxiliary device 134 includes a downstream box (box portion) 58, a downstream radiation protection curtain (downstream obstacle) 54, and a second push-in portion 160.

The second pushing section 160 has a downstream second auxiliary conveyor (auxiliary conveyor section) 162 having a conveying surface (downstream conveying surface) 164, and one or more downstream protrusions (pushing section) 166.

The second auxiliary conveyor 162 on the downstream side is formed similarly to the first auxiliary conveyor 62 on the upstream side. The length of the conveying surface 164 of the second auxiliary conveyor 162 along the X-axis may be the same as or different from the length of the conveying surface 64 of the first auxiliary conveyor 62 along the X-axis. The downstream protrusion (protrusion) 166 is formed similarly to the upstream protrusion 66.

The downstream box 58, like the shielding box 50, is formed in a tunnel shape. Like the shielding box 50 and the upstream box 56, the downstream box 58 is formed of, for example, a plurality of layers of iron plates of appropriate thickness in order to prevent radiation from leaking to the outside. The downstream box 58 extends from the outlet 50b of the radiation shielding box 50 to the downstream side in the conveyance direction from the upstream end of the second auxiliary conveyor 162 on the downstream side.

The outlet 58a of the downstream box 58 is formed, for example, as a substantially rectangular opening in cooperation with the conveyance surface 164 of the second auxiliary conveyor 162 on the downstream side. A protective curtain 54 is hung from the upper edge of the outlet 58a of the downstream box 58. The lower end of the protective curtain 54 slightly contacts the conveying surface 164 of the second auxiliary conveyor 162 on the downstream side. The inlet 58b of the downstream box 58 is fixed to the downstream end surface of the radiation shielding box 50. Radiation is prevented from leaking from the connection position between the downstream box 58 and the radiation shielding box 50.

The distance L1 along the conveyance direction D between the downstream end of the first auxiliary conveyor 62 and the upstream protective curtain 52 is the distance L1 between the upstream end of the second auxiliary conveyor 162 and the downstream protective curtain 54. It is smaller than the distance L2 along the direction D.

The control unit 38 is connected to the first transport auxiliary device 34, the second transport auxiliary device 134, and the baggage detection device 36 by wire or wirelessly. The control unit 38 can control the first conveyance assist device 34, the second conveyance assist device 134, and the baggage detection device 36 as appropriate.

The operation of the radiation inspection system 24 of the baggage processing system 10 will be explained.

The luggage is transported by the first transport section 22 toward a predetermined radiological examination system 24 in the order of the numbers determined by the luggage processing system 10.

As described in the first embodiment, the control unit 38 operates the first conveyance auxiliary device 34 to sequentially push the cargo against the protective curtain 52 at, for example, a predetermined pitch.

The cargo P33 pushed from behind by the protrusion 66 of the first auxiliary conveyance device 34 pushes away the protective curtain 52, and is transferred to the conveyor 44 of the radiation inspection device 32 by the conveyance surface 64 of the first auxiliary conveyor 62. Enter the shield box 50. Since there is no protective curtain at the entrance 50a of the shielding box 50, the cargo enters the shielding box 50 without being interfered with by the conveying force of the conveying surface 45 of the conveyor 44. Since there is no protective curtain at the exit 50b of the shielding box 50, the cargo is conveyed outward from the shielding box 50 by the conveying force of the conveying surface 45 of the conveyor 44 without being interfered with.

Here, in the first conveyance auxiliary device 34, when the protrusion 66 that presses a certain baggage P33 is located at the downstream end of the conveyance surface 64 of the first auxiliary conveyor 62, the rear end of the baggage P33 is placed on the conveyor of the radiation inspection device 32. It is located near the upstream end of 44 or downstream of it in the conveying direction. The control unit 38 calculates the time required for the rear end of a certain parcel P33 to pass through the downstream end of the conveyor 44 of the radiation examination apparatus 32, depending on the length and conveyance speed of the conveyor 44 of the radiation examination apparatus 32. Therefore, in the control of the second conveyance auxiliary device 134, the control unit 38 controls the protrusion fixed to the conveyance surface 164 when the rear end of a certain parcel P33 passes through the downstream end of the conveyor 44 of the radiation inspection device 32. 166 is controlled so that it is located at the upstream end of the conveying surface 164. Therefore, the protrusion 166 presses the cargo P33 from behind. Therefore, the cargo P33 is pushed against the protective curtain 54 by the conveying force of the conveying surface 164 of the second auxiliary conveyor 162, pushes aside the protective curtain 54, and is taken out to the outside. The cargo P33 taken out to the outside is transported by the second transport section 26 to the downstream side of the second transport section 26.

In this way, the cargo is pushed into the protective curtain 52 by the projection (upstream pushing projection) 66 that follows the movement of the conveying surface 64 of the first auxiliary conveyor 62. Therefore, the first conveyance auxiliary device 34 pushes the protective curtain 52 aside and puts the baggage toward the conveyor 44 of the radiation examination device 32 . The radiological inspection system 24 prevents each baggage from accumulating in the protective curtain 52. For this reason, the posture of the cargo transported by the first conveyance unit 22 is changed, such as rotating while the cargo is in contact with the protective curtain 52, and the cargo is prevented from remaining in contact with the protective curtain 52. . Therefore, the baggage that is transported after the baggage in the first transporting section 22 is prevented from entering the shielding box 50 first.

Here, when reducing the distance between the downstream end of the first auxiliary conveyor 62 and the upstream protective curtain 52, the front end of the cargo is may come into contact with the protective curtain 52. At this time, the rear end of the cargo is on the upstream side of the protrusion 66, and the protrusion 66 simply runs under the cargo, and there is a possibility that no pressing force along the transport direction D can be applied to the cargo.

In contrast, in the present embodiment, by reducing the distance L1 between the downstream end of the first auxiliary conveyor 62 and the upstream protective curtain 52, the distance L1 between the downstream end of the first auxiliary conveyor 62 and the upstream side Increase the distance between the protective curtain 52 and the protective curtain 52. Therefore, before the front end of the package comes into contact with the protective curtain 52, the rear end of the package can be placed on the conveyance surface 64 of the first auxiliary conveyor 62, and the protrusion 66 can press the package against the protective curtain 52.

Similarly, the cargo is pushed into the protective curtain 54 by a protrusion (downstream pushing protrusion) 166 that follows the movement of the conveying surface 164 of the second auxiliary conveyor 162. Therefore, the second conveyance auxiliary device 134 pushes aside the protective curtain 54 and takes out the cargo from the conveyor 44 of the radiation examination apparatus 32 toward the outside of the radiation examination apparatus 32 . The radiological inspection system 24 prevents each baggage from accumulating in the protective curtain 54. For this reason, the attitude of the baggage conveyed by the conveyor 44 of the first conveying section 22 and the radiation inspection device 32 is changed, such as rotating while the baggage is in contact with the protective curtain 54, and the baggage is brought into a state in contact with the protective curtain 52. This prevents the fluid from remaining in the tank. Therefore, the baggage that is transported to the conveyor 44 of the radiological examination apparatus 32 after the baggage in the first transport section 22 is prevented from being delivered to the second transport section 26 first.

Therefore, in a state where the posture of the baggage transported by the first transport section 22 is difficult to change, the baggage is transferred to the radiation inspection system 24 in the order in which it is transported from the first transport section 22 (in the order of P31, P32, P33). and is transported to the second transport section 26.

Here, when reducing the distance between the downstream end of the second auxiliary conveyor 162 and the downstream protective curtain 54, the front end of the cargo is may come into contact with the protective curtain 54. At this time, the rear end of the load is on the upstream side of the protrusion 166, and the protrusion 166 simply runs under the load, and there is a possibility that it cannot apply a pressing force along the transport direction D to the load.

In contrast, in this embodiment, the distance L2 between the downstream end of the second auxiliary conveyor 162 and the upstream protective curtain 52 is increased. Therefore, before the front end of the package comes into contact with the protective curtain 54, the rear end of the package can be placed on the conveyance surface 164 of the second auxiliary conveyor 162, and the protrusion 166 can press the package against the protective curtain 54.

This embodiment has been described as an example in which the radiation inspection system 24 includes both the first transport assisting device 34 and the second transport assisting device 134. If the first transport auxiliary device 34 is provided, the radiation examination system 24 can prevent luggage from staying at the entrance 50a of the radiation examination apparatus 32. Similarly, if the radiation examination system 24 includes the second transport auxiliary device 134, it is possible to prevent luggage from staying at the exit 50b of the radiation examination apparatus 32. The radiological examination system 24 may include at least one of a first transport auxiliary device 34 and a second transport auxiliary device 134.

The conveyance auxiliary devices 34 and 134 are used together with a radiation inspection device 32 that irradiates radiation onto a load (examination object) transported in a predetermined conveyance direction D using a conveyor (conveyance path) 44 to inspect the load. The conveyance auxiliary device 34, 134 has an auxiliary conveyor section, a box section, a curtain section (obstruction), and a pushing projection section (pushing section). The auxiliary conveyor section includes a first auxiliary conveyor 62 on the upstream side of the conveyance path 44 of the radiation examination device 32 and into which the baggage is placed toward the radiation examination device 32, and a first auxiliary conveyor 62 on the upstream side of the conveyance path 44 of the radiation examination device 32. It has at least one side with the second auxiliary conveyor 162 on the downstream side that takes out the baggage from the radiographic inspection device 32. When there is the first auxiliary conveyor 62 on the upstream side, the box part is a tunnel-shaped part that extends from the entrance 50a of the radiological examination device 32 to the upstream side in the conveyance direction D from the downstream end of the first auxiliary conveyor 62 on the upstream side. It has an upstream box 56. When there is a second auxiliary conveyor 162 on the downstream side, the box part is a tunnel-shaped part that extends from the outlet 50b of the radiographic inspection device 32 to the downstream side in the conveyance direction D from the upstream end of the second auxiliary conveyor 162 on the downstream side. It has a downstream box 58. The curtain part (obstruction) is an upstream protective curtain that is hung from the upstream box 56 toward the first auxiliary conveyor 62 on the upstream side above the first auxiliary conveyor 62 on the upstream side when the upstream box 56 is present. (upstream obstacle) 52. When the downstream box 58 is present, the curtain section includes a downstream protective curtain (downstream obstacle) 54. When the upstream protective curtain 52 is present in the upstream box 56, the pushing protrusion (pushing part) is an upstream pressing protrusion (pushing part) that pushes the load from the upstream side to the upstream protective curtain 52 on the downstream side of the load. side push-in part) 66. The pushing part is a downstream pushing projection (downstream pushing part) 166 that pushes the cargo from the upstream side to the downstream protective curtain 54 on the downstream side when the downstream box 58 has the downstream protective curtain 54. has.

According to this embodiment, it is possible to provide the transport auxiliary device 34 and the radiation examination system 24 that can prevent luggage from staying at the entrance 50a of the radiation examination apparatus 32. According to this embodiment, it is possible to provide the transport auxiliary device 134 and the radiation examination system 24 that can prevent luggage from remaining at the exit 50b of the radiation examination apparatus 32.

The shape, size, weight, etc. of each baggage are recognized in the baggage registration area 12 upstream of the radiation inspection system 24. As shown in FIGS. 17 and 18, a package whose height is lower than the height of the protrusion 66 may be conveyed to the radiographic examination system 24 through the first conveyance section 22. The control unit 38 may arrange the protrusion 66 on the downstream side (front side) of the cargo P43 in the transport direction D. At this time, since the protrusion 66 pushes away the protective curtain 52, the cargo P43 follows the protrusion 66 and is put into the upstream box 56. Therefore, the protrusion 66 is not used to push the cargo P43 away from the protective curtain 52 from behind. The protrusion 66 can be used to push away the protective curtain 52 and follow the cargo P43 into the upstream box 56. Note that, as described above, the luggage P43 may be pressed by the protrusion 66.

In the examples shown in FIGS. 17 and 18, the postures of the items transported by the first transport unit 22 are difficult to change, and each item is transported in the order in which they are transported from the first transport unit 22 (P41, P42, P43). , P44), it passes through the radiation inspection system 24 and is transported to the second transport section 26.

(Third embodiment)
A third embodiment will be described using FIGS. 19 to 21. This embodiment is a modification of the first embodiment including the first modification, and the second embodiment. The same members or members having the same functions as those described in the first embodiment and the second embodiment are given the same reference numerals as much as possible, and their explanations are omitted.

The radiation inspection system 24 of this embodiment includes a radiation inspection device 32, a first conveyance assist device 34, a second conveyance assist device 134, a baggage detection device 36, and a control unit 38. An example will be described in which the radiographic examination system 24 of this embodiment is used by attaching a pushing part (pushing mechanism) 180, which will be described later as the second conveyance assisting device 134, to the radiographic inspection apparatus 32.

The first conveyance auxiliary device 34 has the first pushing part 80 that pushes the cargo into the protective curtain 52, as described in the first modification of the first embodiment. Description of this will be omitted.

The second transport auxiliary device 134 is installed inside the shielding box 50 of the radiation examination device 32. The second transport auxiliary device 134 has a second pushing part 180 that pushes the cargo inside the shielding box 50 of the radiation examination apparatus 32 into the protective curtain 54 suspended at the exit 50b of the shielding box 50.

The pushing part 180 includes a rail 182 extending along the conveying direction D (X-axis direction), and an actuator (cylinder) 184 having a piston rod 186 that moves along the vertical direction (Z-axis direction) and whose lower end serves as a pressing part. and has. The rail 182 is arranged, for example, on the ceiling or inner wall of the shielding box 50. The upper end of the actuator 184 is supported by the rail 182. The actuator 184 is movable within a predetermined range in the X-axis direction (direction along the transport direction D) by the rails 182.

The control unit 38 is connected to the first transport auxiliary device 34, the second transport auxiliary device 134, and the baggage detection device 36 by wire or wirelessly. The control unit 38 can control the first conveyance assist device 34, the second conveyance assist device 134, and the baggage detection device 36 as appropriate.

The operation of the radiation inspection system 24 of the baggage processing system 10 will be explained.

The luggage is transported by the first transport section 22 toward a predetermined radiological examination system 24 in the order of the numbers determined by the luggage processing system 10.

As described in the first modification of the first embodiment, the first pushing section 80 of the first conveyance assisting device 34 is operated to push the cargo into the protective curtain 52 one after another.

The baggage pushed from behind by the pressing part 86 of the first conveyance auxiliary device 34 pushes away the protective curtain 52 and enters the shielding box 50 by the conveyance force of the conveyor 44 of the radiation examination device 32.

Here, in the first conveyance auxiliary device 34, when the pressing part 86 that presses a certain baggage is at a predetermined position closest to the entrance 50a of the shielding box 50 (see FIG. 12), the rear end of the baggage is It is located near the upstream end of the conveyor 44 of No. 32 or downstream of it in the conveying direction. The control unit 38 calculates the time it takes for the rear end of a certain package to pass through an appropriate position on the conveyor 44 of the radiation examination apparatus 32, depending on the length and conveyance speed of the conveyor 44 of the radiation examination apparatus 32. Therefore, in the control of the second conveyance auxiliary device 134, the control unit 38 controls the rail 182 when the rear end of a certain cargo P52 passes between the conveyor 44 of the radiation inspection device 32 and the lower end of the piston rod 186. to move the piston rod 186 of the actuator 184, and control the piston rod 186 to press (contact) the cargo P52 from behind. The piston rod 186 moves at the same speed as the conveyance speed of the conveyor 44 of the radiation examination device 32 to a predetermined position closest to the outlet 50b of the shielding box 50 (see FIG. 21). Therefore, the cargo P52 is pushed against the protective curtain 54 by the conveying force of the conveyor 44 of the radiation examination device 32 and the pressing force of the piston rod 186, pushes the protective curtain 54 aside, and is taken out to the outside. The luggage P52 taken out to the outside is transferred from the conveyor 44 of the radiation examination device 32 to the second conveyance section 26, and conveyed to the downstream side of the second conveyance section 26.

In this way, the luggage is pushed against the protective curtain 52 by the pushing part 86 of the first pushing part 80. Therefore, the first conveyance auxiliary device 34 pushes the protective curtain 52 aside and puts the baggage toward the conveyor 44 of the radiation examination device 32 . The radiological inspection system 24 prevents each baggage from accumulating in the protective curtain 52. For this reason, the posture of the cargo transported by the first conveyance unit 22 is changed, such as rotating while the cargo is in contact with the protective curtain 52, and the cargo is prevented from remaining in contact with the protective curtain 52. . Therefore, the baggage conveyed after the baggage in the first conveying section 22 is prevented from entering the shielding box 50 first.

Similarly, the load is pushed against the protective curtain 54 by the piston rod 186 of the second pusher 180. Therefore, the second conveyance auxiliary device 134 pushes aside the protective curtain 54 and takes out the cargo from the conveyor 44 of the radiation examination apparatus 32 toward the outside of the radiation examination apparatus 32 . The radiological inspection system 24 prevents each baggage from accumulating in the protective curtain 54. Therefore, the attitude of the baggage conveyed by the first conveying section 22 and the conveyor 44 of the radiation inspection device 32 is changed, such as rotating while the baggage is in contact with the protective curtain 54, and the baggage comes into contact with the protective curtain 54. This prevents the product from remaining in a stagnant state. Therefore, the baggage that is transported to the conveyor 44 of the radiological examination apparatus 32 after the baggage in the first transport section 22 is prevented from being delivered to the second transport section 26 first.

Therefore, in a state where the posture of the baggage transported by the first transport section 22 is difficult to change, each baggage is inspected for radiological examination in the order in which it is transported from the first transport section 22 (in the order of P51, P52, P53, P54). It passes through the system 24 and is transported to a second transport section 26 .

According to this embodiment, the push-in parts 80 and 180 are provided above the conveyance path 44 in the radiation examination apparatus 32 or above the conveyance path 44 on the upstream side of the radiation examination apparatus 32, 54 (X-axis direction), and a direction intersecting the direction of approaching and separating from the conveyance path 44 and away from the conveyance path 44 (Z-axis direction). , 186.

According to this embodiment, it is possible to provide the transport auxiliary device 34 and the radiation examination system 24 that can prevent luggage from staying at the entrance 50a of the radiation examination apparatus 32. According to this embodiment, it is possible to provide the transport auxiliary device 134 and the radiation examination system 24 that can prevent luggage from remaining at the exit 50b of the radiation examination apparatus 32.

In this way, when there is no upstream first auxiliary conveyor 62 and upstream box 56 shown in FIGS. 15 to 17, the first conveyance auxiliary device 34, instead of the pushing part 60 shown in FIGS. 15 to 17, For example, it is preferable to have a push-in portion 80 shown in FIGS. 19 to 21.

When there is no second auxiliary conveyor 162 on the downstream side shown in FIGS. 15 and 17, the second conveyance auxiliary device 134 can be used instead of the pushing part 160 shown in FIGS. 15 and 17, for example, as shown in FIGS. It is preferable to have a push-in portion 180 or a push-in portion 280 shown in FIG. 22, which will be described later.

In addition, if the radiation examination system 24 includes the first transport auxiliary device 34, it is possible to prevent luggage from staying at the entrance 50a of the radiation examination apparatus 32. Similarly, if the radiation examination system 24 includes the second transport auxiliary device 134, it is possible to prevent luggage from staying at the exit 50b of the radiation examination apparatus 32. As described in the second embodiment, at least one of the first conveyance assisting device 34 including the first pushing part 80 and the second conveying assisting device 134 including the second pushing part 180 is sufficient.

(First modification)
A first modification of the third embodiment will be described using FIG. 22.

The second transport auxiliary device 134 shown in FIG. 22 includes a downstream box (box portion) 58, a downstream radiation protection curtain (downstream obstacle) 54, and a second push-in portion 280.

The second push-in portion 280 has, for example, the same configuration as the first push-in portion 80. Here, the first rail 282 extending along the conveyance direction D (X-axis direction) is supported by the inner wall or ceiling of the downstream box 58. The first rail 282 is movable in the Z-axis direction (vertical direction). The second rail 284 extends in the Z-axis direction (vertical direction) and is movable along the X-axis direction with respect to the first rail 282. The first rail 282 and the second rail 284 each move, for example, linearly relative to the downstream box 58. The pressing part 286 is supported by the second rail 284.

The pressing portion 286 moves in a direction toward and away from the radiation protection curtain 54 at the outlet 58a of the downstream box 58 (a direction in which it approaches the radiation protection curtain 54 at the outlet 58a, and a direction away from the radiation protection curtain 54 at the outlet 58a). It is movable in the direction toward and away from the second conveyance section 26 (the direction toward and away from the second conveyance section 26). The direction in which the exit 58a approaches and leaves the radiation protection curtain 54 and the direction in which it approaches and leaves the second transport section 26 are directions that intersect with each other.

Note that there is no protective curtain 54 at the exit 50b of the shielding box 50 of the radiation inspection device 32.

The cargo is pushed against the protective curtain 54 by the pushing part 186 of the second pushing part 280. Therefore, the second conveyance auxiliary device 134 pushes aside the protective curtain 54 and takes out the cargo conveyed from the conveyor 44 of the radiation examination device 32 to the second conveyance unit 26 . The radiological inspection system 24 prevents each baggage from accumulating in the protective curtain 54. Therefore, the attitude of the baggage conveyed by the first conveying section 22 and the conveyor 44 of the radiation inspection device 32 is changed, such as rotating while the baggage is in contact with the protective curtain 54, and the baggage comes into contact with the protective curtain 54. This prevents the product from remaining in a stagnant state. Therefore, it is possible to prevent the cargo to be later transported from the conveyor 44 of the radiation examination device 32 to the second transport section 26 to be transported to the downstream side of the second transport section 26 through the protective curtain 54 first. Then, the radiation inspection system 24 can perform the radiation inspection of each baggage in the same order as they were conveyed by the first conveyance unit 22 (in the order of P61, P62, and P63).

Usually, a protective wall may be provided near the radiation inspection device 32 to protect from leaking radiation. When the push-in portion 280 of the second transport auxiliary device 134 is arranged downstream of the radiation examination device 32, the downstream box 58 can be used instead of a protective wall.

(Fourth embodiment)
The fourth embodiment will be described using FIG. 23. This embodiment is a modification of the first embodiment including the first modification, the second embodiment, and the third embodiment including the first modification. The same members or members having the same functions as those described in the first embodiment, the second embodiment, and the third embodiment are given the same reference numerals as much as possible, and the description thereof will be omitted.

The radiation inspection system 24 includes a radiation inspection device 32 , a first transportation auxiliary device 34 , a second transportation auxiliary device 134 , a baggage detection device 36 , and a control section 38 .

In the example shown in FIG. 23, the entrance 50a side of the shielding box 50 of the radiation examination apparatus 32 maintains, for example, the known radiation examination apparatus 32 as it is. In the vicinity of the entrance 50a of the shielding box 50 of the radiation inspection device 32, the push-in portion 80 of the first transport assisting device 34 described in the first modification of the first embodiment is arranged.

On the exit 50b side of the shielding box 50 of the radiation inspection device 32, the position of the protective curtain 54 has been changed. A second transport auxiliary device 134 is disposed on the exit 50b side of the shielding box 50. The second conveyance auxiliary device 134 includes the downstream box 58, the downstream protection curtain 54, and the second push-in portion 160, as described in the second embodiment.

In the radiation examination system 24 according to the present embodiment, with such a combination, the cargo transported through the first transport section 22 by the first transport auxiliary device 34 pushes away the protective curtain 52, and the shielding box of the radiation examination apparatus 32 is removed. 50 into the conveying surface 45 of the conveyor 44. In addition, the cargo placed in the shielding box 50 is transferred to the second transport section 26 by the second transport auxiliary device 134, pushing aside the protective curtain 54, and transported downstream of the second transport section 26. Ru.

Here, as the first conveyance auxiliary device 34, the pushing section 80 described in the first modification of the first embodiment is used, and as the second conveyance auxiliary device 134, the pushing section 160 explained in the second embodiment is used. explained. The pushing part 60 described in the first embodiment may be used as the first transport assisting device 34, and the pushing part 180 described in the third embodiment may be used as the second transport assisting device 134.

According to this embodiment, it is possible to provide the transport auxiliary device 34 and the radiation examination system 24 that can prevent luggage from staying at the entrance 50a of the radiation examination apparatus 32. According to this embodiment, it is possible to provide the transport auxiliary device 134 and the radiation examination system 24 that can prevent luggage from remaining at the exit 50b of the radiation examination apparatus 32.

(Fifth embodiment)
The fifth embodiment will be described using FIG. 24. This embodiment is a modification of the first to fourth embodiments including each modification. In this embodiment, the same members or members having the same functions as those described in the first to fourth embodiments are given the same reference numerals as much as possible, and their explanations are omitted.

As shown in FIG. 24, the radiation inspection system 24 of this embodiment removes the protective curtains (obstacles) 52 and 54 placed at the entrance 50a and exit 50b of the shielding box 50 described in the first embodiment. The protective curtains 52, 54 at the entrance 50a and exit 50b of the shielding box 50 can be removed. Therefore, in this embodiment as well, the known radiation inspection apparatus 32 can be used. In this embodiment, it is also possible to use a new radiation inspection device 32.

The radiation examination system 24 includes a radiation examination apparatus 32, a first transport device 234a, and a second transport device 234b.

The first transport device 234a is located between the first transport section 22 and the radiation inspection device 32. The second transport device 234b is located between the radiation examination device 32 and the second transport section 26.

The first conveyance device 234a controls the conveyance direction of the baggage with respect to the upstream box (shielding body) 256 and the conveyance direction D of the conveyor 44 of the radiation inspection device 32 (the direction of radiation leakage at the entrance 50a of the shielding box 50). and an upstream conveyance section 292 for shifting. The upstream conveyance section 292 here is an example in which the conveyance direction of the baggage is shifted within a horizontal plane.

The upstream box 256, like the shielding box 50, is formed in a tunnel shape. Like the shielding box 50, the upstream box 256 is formed of, for example, a plurality of layers of iron plates of appropriate thickness in order to prevent radiation from leaking to the outside. The upstream box 256 extends upstream from the entrance 50a of the radiation shielding box 50.

The upstream box 256 has a shielding portion 256a and an opening 256b.

The shielding part 256a is formed as a wall surface on the upstream side of the conveyor 44 of the radiation inspection apparatus 32 in the conveyance direction D. The shielding part 256a blocks radiation that may leak from inside the radiation shielding box 50 through the entrance 50a of the radiation shielding box 50. The shielding part 256a only needs to have an appropriate surface on the upstream side in the transport direction D that intersects with the X axis and blocks radiation. The shielding portion 256a is formed, for example, as a surface parallel to a YZ plane orthogonal to the X-axis parallel to the transport direction D.

The opening 256b is located between the shielding part 256a and the conveyor 44 of the radiation examination apparatus 32, and opens in a direction different from the conveyance direction D of the conveyor 44 of the radiation examination apparatus 32. In the example shown in FIG. 24, the opening 256b penetrates in the Y-axis direction.

The upstream conveyance section 292 is passed through the opening 256b. The upstream conveyance section 292 is located between the downstream end of the first conveyance section 22 and the upstream end of the conveyor 44 of the radiation examination apparatus 32. The upstream conveyance section 292 includes a first conveyance body 292a that moves the load conveyed along the first conveyance section 22 parallel to the X-axis, for example, along the Y-axis direction, and a first conveyance body 292a. and a second transport body 292b that moves the loaded baggage along, for example, the X-axis direction and delivers it to the conveyor 44 of the radiation inspection device 32. In this embodiment, the path between the upstream end of the conveyance surface 45 of the conveyor 44 of the radiation examination apparatus 32 and the downstream end of the conveyance surface of the first conveyance section 22 are at approximately the same height. By these first transport body 292a and second transport body 292b, the baggage transported by the first transport section 22 is bent into a substantially L-shape in a horizontal plane (on the XY plane) and delivered to the conveyor 44 of the radiation inspection device 32. It can be done. In the present embodiment, the conveyance direction of the conveyance surface of the first conveyance section 22 is shifted in the Y-axis direction at the downstream end of the first conveyance section 22 and the upstream end of the conveyor 44 of the radiation inspection apparatus 32. However, the direction is parallel to the conveying direction D of the conveying surface 45 of the conveyor 44 of the radiological examination apparatus 32.

Note that the upstream box 256 of this embodiment is formed so as to cover the downstream end of the first transport section 22. The first conveyance section 22 extends upstream through an opening 256c that is offset from the shielding section 256a of the upstream box 256 in the Y-axis direction and penetrates in the X-axis direction.

The second conveyance device 234b controls the conveyance direction of the baggage with respect to the downstream box (shielding body) 258 and the conveyance direction D of the conveyor 44 of the radiation inspection device 32 (the direction of radiation leakage at the exit 50b of the shielding box 50). and a downstream conveyance section 296 for shifting. The downstream conveyance section 296 here is an example in which the conveyance direction of the cargo is shifted within a horizontal plane.

The downstream box 258, like the shielding box 50 and the upstream box 256, is formed in a tunnel shape. Like the shielding box 50 and the upstream box 256, the downstream box 258 is formed of, for example, a plurality of layers of iron plates of appropriate thickness in order to prevent radiation from leaking to the outside. The downstream box 258 extends downstream from the outlet 50b of the radiation shielding box 50.

The downstream box 258 has a shielding portion 258a and an opening 258b.

The shielding portion 258a is formed as a wall surface on the downstream side of the conveyor 44 of the radiation inspection device 32 in the conveyance direction D. The shielding part 258a blocks radiation that may leak from inside the radiation shielding box 50 through the outlet 50b of the radiation shielding box 50. The shielding part 258a only needs to have an appropriate surface on the downstream side in the transport direction D that intersects the X axis and blocks radiation. The shielding portion 258a is formed, for example, as a surface parallel to a YZ plane that is perpendicular to the X axis that is parallel to the transport direction D.

The opening 258b is located between the conveyor 44 of the radiation examination apparatus 32 and the shielding part 258a, and opens in a direction different from the transport direction D of the conveyor 44 of the radiation examination apparatus 32. In the example shown in FIG. 24, the opening 258b penetrates in the Y-axis direction.

A downstream conveyance section 296 is passed through the opening 258b. The downstream conveyance section 296 is located between the upstream end of the conveyor 44 of the radiation examination apparatus 32 and the upstream end of the second conveyance section 22 . The downstream conveyance section 296 includes a first conveyor 296a that moves the cargo conveyed along the conveyor 44 of the radiological examination apparatus 32 parallel to the X-axis, for example, along the Y-axis direction, and a first conveyor 296a. It has a second transport body 296b that moves the transported cargo along, for example, the X-axis direction and delivers it to the second transport section 26. In this embodiment, the path between the downstream end of the conveyance surface 45 of the conveyor 44 of the radiation examination apparatus 32 and the upstream end of the conveyance surface of the second conveyance section 26 is at approximately the same height. By these first conveyance body 296a and second conveyance body 296b, the baggage conveyed by the conveyor 44 of the radiation examination apparatus 32 is bent into a substantially L-shape in a horizontal plane (on the XY plane) and delivered to the second conveyance section 26. It can be done. In this embodiment, the conveyance direction of the conveyance surface of the second conveyance section 26 is shifted in the Y-axis direction at the downstream end of the conveyor 44 of the radiation inspection apparatus 32 and the upstream end of the second conveyance section 22. However, the direction is parallel to the conveying direction D of the conveying surface 45 of the conveyor 44 of the radiological examination apparatus 32.

Note that the downstream box 258 of this embodiment is formed so as to cover up to the upstream end of the second transport section 26. The second conveyance section 26 is offset from the shielding section 258a of the downstream box 258 in the Y-axis direction and extends downstream through an opening 258c penetrating in the X-axis direction.

The operation of the radiation inspection system 24 of the baggage processing system 10 will be explained.

The cargo transported to the radiological examination system 24 by the first transport section 22 is put into the upstream box 256 through the opening 256c of the upstream box 256. When the cargo is transferred from the first transport section 22 to the first transport body 292a of the upstream transport section 292, the transport direction changes from the X-axis direction to the Y-axis direction by the first transport body 292a. Further, when the cargo is transferred from the first transport body 292a to the second transport body 292b, the transport direction changes from the Y-axis direction to the X-axis direction by the second transport body 292b. The cargo is transferred from the second conveyor 292b of the upstream conveyor 292 to the conveyor 44 of the radiation inspection apparatus 32. Therefore, the baggage is delivered from the first conveyance section 22 to the conveyor 44 of the radiographic examination apparatus 32 while drawing a substantially L-shaped trajectory.

The baggage delivered to the conveyor 44 of the radiation inspection device 32 is exposed to radiation from the radiation generator 46 in the shielding box 50 of the radiation inspection device 32, and is subjected to a radiation inspection. At this time, radiation may leak from the entrance 50a and exit 50b of the shielding box 50. Radiation leaking from the entrance 50a of the shielding box 50 is blocked by the upstream box 256 between the entrance 50a of the shielding box 50 and the shielding part 256a. Radiation leaking from the outlet 50b of the shielding box 50 is blocked by the downstream box 258 between the outlet 50b of the shielding box 50 and the shielding part 258a.

In this way, the radiation inspection system 24 according to the present embodiment uses the first transport device 234a and the second transport device 234b instead of the protective curtains 52 and 54, thereby preventing radiation from leaking to the outside of the shielding box 50. This can be prevented.

Note that the baggage that has been conveyed to the conveyor 44 of the radiation inspection system 24 and inspected is transferred from the downstream end of the conveyor 44 of the radiation inspection system 24 to the first conveyance body 296a of the downstream conveyance section 296, and is conveyed. The direction is changed from the X-axis direction to the Y-axis direction. The cargo is transferred from the first conveyor 296a of the downstream conveyor 296 to the second conveyor 296b, and the conveyance direction is changed from the Y-axis direction to the X-axis direction. The cargo is delivered to the second transport unit 26 from the downstream end of the second transport body 296b. The cargo is transported from the second transport section 26 toward the post-inspection transport area 16 on the downstream side.

Furthermore, in the radiation inspection system 24 according to the present embodiment, since the protective curtains 52 and 54 are not present at the entrance 50a and the exit 50b of the shielding box 50, it is possible to prevent cargo from accumulating at the entrance 50a and the exit 50b of the shielding box 50. be done. Then, the radiation inspection system 24 can perform the radiation inspection of each baggage in the same order as they were conveyed by the first conveyance unit 22 (in the order of P71, P72, P73, and P74).

The first conveyance device 234a according to the present embodiment is used together with a radiation inspection device 32 that inspects a load (examination object) by irradiating radiation onto the load (examination object) conveyed in a predetermined conveyance direction D using a conveyor (conveyance path) 44. . The first transport device 234a includes an upstream box (upstream shield) 256 that extends upstream from the radiation examination device 32 along the transport direction D, and an upstream transport section 292. The upstream box 256 is located on the upstream side of the conveyor (transport path) 44 in the conveyance direction D, and has an upstream shielding part 256a that blocks radiation that may leak from inside the radiation examination apparatus 32 through the entrance 50a of the radiation examination apparatus 32. and an opening 256b that is located between the upstream shielding portion 256a and the conveyor (conveyance path) 44 of the radiation inspection apparatus 32 and opens in a direction different from the conveyance direction D. The transport unit 292 transports the cargo from the outside of the upstream box 256 to the inside through the opening 256b of the upstream box 256.

The second conveyance device 234b according to the present embodiment is used together with a radiation inspection device 32 that inspects the load (examination object) by irradiating the conveyor (conveyance path) 44 with radiation to the load (examination object) conveyed in a predetermined conveyance direction D. . The second transport device 234b includes a downstream box (downstream shield) 258 that extends downstream from the radiation inspection device 32 along the transport direction D, and a downstream transport section 296. A downstream shielding part 258a that is located on the downstream side of the conveyor (transport path) 44 in the conveyance direction D and blocks radiation that may leak from inside the radiation examination apparatus 32 through the exit 50b of the radiation examination apparatus 32; It has an opening 258b that is located between the portion 258a and the conveyor 44 of the radiological examination apparatus 32 and opens in a direction different from the conveyance direction D. The downstream transport section 296 transports the cargo from the inside of the downstream box 258 to the outside through the opening 258b of the downstream box 258.

As described above, according to the present embodiment, it is possible to provide the first transport device 234a and the radiation examination system 24 that can prevent luggage from staying at the entrance 50a of the radiation examination apparatus 32. According to this embodiment, it is possible to provide the second transport device 234b and the radiation examination system 24 that can prevent luggage from remaining at the exit 50b of the radiation examination apparatus 32.

(First modification)
A first modification of the fifth embodiment will be described using FIG. 25.

In this modification, the radiation inspection system 24 between the first transport section (upstream transport section) 22 and the second transport section 26 is formed in a substantially U-shape or a substantially U-shape. In this modification, the transport direction of the first transport section 22 is not along the X-axis direction but along the Y-axis direction. The transport direction of the second transport section 22 is not along the X-axis direction but along the Y-axis direction.

The first conveyance device 234a controls the conveyance direction of the baggage with respect to the upstream box (shielding body) 256 and the conveyance direction D of the conveyor 44 of the radiation inspection device 32 (the direction of radiation leakage at the entrance 50a of the shielding box 50). and an upstream conveyance section 292 for shifting. In this modification, the transport direction of the upstream transport section 292 is along the X-axis direction.

The second conveyance device 234b controls the conveyance direction of the baggage with respect to the downstream box (shielding body) 258 and the conveyance direction D of the conveyor 44 of the radiation inspection device 32 (the direction of radiation leakage at the exit 50b of the shielding box 50). and a downstream conveyance section 296 for shifting. In this modification, the conveyance direction of the downstream conveyance section 296 is along the X-axis direction.

The operation of the radiation inspection system 24 of the baggage processing system 10 will be explained.

The cargo transported by the first transport section 22 to the radiological examination system 24 is transferred from the downstream end of the first transport section 22 to the upstream transport section 292 . The upstream conveyance section 292 directs the conveyance direction of the baggage along the Y-axis direction to the conveyance direction D (X-axis direction) of the conveyor 44 of the radiation inspection apparatus 32. The baggage is delivered from the upstream conveyance section 292 to the conveyor 44 of the radiological examination apparatus 32.

The baggage delivered to the conveyor 44 of the radiation inspection device 32 is exposed to radiation from the radiation generator 46 in the shielding box 50 of the radiation inspection device 32, and is subjected to a radiation inspection. At this time, radiation may leak from the entrance 50a and exit 50b of the shielding box 50. Radiation leaking from the entrance 50a of the shielding box 50 is blocked by the upstream box 256 between the entrance 50a of the shielding box 50 and the shielding part 256a. Radiation leaking from the outlet 50b of the shielding box 50 is blocked by the downstream box 258 between the outlet 50b of the shielding box 50 and the shielding part 258a.

In this way, the radiation inspection system 24 according to the present modification uses the first transport device 234a and the second transport device 234b instead of the protective curtains 52 and 54, thereby preventing radiation from leaking to the outside of the shielding box 50. This can be prevented.

Note that the inspected baggage that has been conveyed to the conveyor 44 of the radiation inspection system 24 is delivered from the downstream end of the conveyor 44 of the radiation inspection system 24 to the upstream end of the downstream conveyance section 296. At the downstream end of the downstream conveyance section 296, the cargo is delivered to the second conveyance section 26. The second conveyance unit 26 directs the conveyance direction of the baggage along the conveyance direction D of the conveyor 44 of the radiation examination apparatus 32 toward the Y-axis direction. The cargo is transported from the second transport section 26 toward the post-inspection transport area 16 on the downstream side.

In the radiation inspection system 24 according to this modification, since the protective curtains 52 and 54 are not present at the entrance 50a and the exit 50b of the shielding box 50, the baggage is prevented from staying at the entrance 50a and the exit 50b of the shielding box 50. . The radiation examination system 24 can perform the radiation examination of each baggage in the same order as they were transported by the first transport unit 22 (in the order of P81, P82, and P83).

The conveying direction of the first conveying section 22 and the conveying direction of the second conveying section 26 are opposite to each other, but the conveying direction of the first conveying section 22 and the conveying direction of the second conveying section 26 are parallel to each other and the same. It can also be a direction.
If the first conveyance section 22 and the conveyor 44 of the radiation examination apparatus 32 can be made adjacent to each other, the upstream conveyance section 292 may be unnecessary. If the conveyor 44 of the radiation examination apparatus 32 and the second conveyance section 26 can be made adjacent to each other, the downstream conveyance section 296 may be unnecessary.

As described above, according to this modification, it is possible to provide the first transport device 234a and the radiation examination system 24 that can prevent luggage from staying at the entrance 50a of the radiation examination apparatus 32. According to this modification, it is possible to provide the second transport device 234b and the radiation examination system 24 that can prevent luggage from remaining at the exit 50b of the radiation examination apparatus 32.

(Second modification)
A second modification of the fifth embodiment will be described using FIG. 26.

The radiation examination system 24 includes a radiation examination apparatus 32, a first transport device 234a, and a second transport device 234b.

The first conveyance device 234a controls the conveyance direction of the baggage with respect to the upstream box (shielding body) 256 and the conveyance direction D of the conveyor 44 of the radiation inspection device 32 (the direction of radiation leakage at the entrance 50a of the shielding box 50). and an upstream conveyance section 322 for shifting. The upstream conveyance section 322 here is an example in which the conveyance direction of the cargo is shifted in the vertical direction.

The upstream box 256 has a shielding portion 256a and an opening 256b, as described in the fifth embodiment. In this modification, the opening 256b penetrates in the Z-axis direction.

The upstream conveyance section 322 is passed through the opening 256b.

Here, the first conveyance section 22 is shifted downward from the shielding section 256a of the upstream box 256 along the Z-axis direction. The downstream end of the first conveyance section 22 is located upstream along the X-axis direction with respect to the upstream end of the conveyor 44 of the radiological examination apparatus 32. The conveyance direction of the first conveyance section 22 and the conveyance direction of the conveyor 44 of the radiation inspection apparatus 32 are parallel to the X-axis, but are offset in the Z-axis direction. The upstream conveyance section 322 is located between the downstream end of the first conveyance section 22 and the upstream end of the conveyor 44 of the radiation examination apparatus 32. Therefore, the upstream conveyance section 322 is inclined upward from the upstream side toward the downstream side. The height of the conveyance surface of the first conveyance section 22 approaches the height of the conveyance surface 45 of the conveyor 44 of the radiation examination apparatus 32 as it approaches the conveyor 44 of the radiation examination apparatus 32 .

The second conveyance device 234b controls the conveyance direction of the baggage with respect to the downstream box (shielding body) 258 and the conveyance direction D of the conveyor 44 of the radiation inspection device 32 (the direction of radiation leakage at the exit 50b of the shielding box 50). It has a downstream conveyance section 326 that shifts. The downstream conveyance section 326 here is an example in which the conveyance direction of the cargo is shifted in the vertical direction.

The downstream box 258 has a shielding portion 258a and an opening 258b, as described in the fifth embodiment. In this modification, the opening 258b penetrates in the Z-axis direction.

The downstream conveyance section 326 is passed through the opening 258b.

Here, the second conveyance section 26 is shifted downward from the shielding section 258a of the downstream box 258 along the Z-axis direction. The upstream end of the second conveyance section 22 is located downstream along the X-axis direction with respect to the downstream end of the conveyor 44 of the radiological examination apparatus 32. The conveyance direction of the conveyor 44 of the radiation inspection apparatus 32 and the conveyance direction of the second conveyance section 26 are parallel to the X-axis, but are offset in the Z-axis direction. The downstream conveyance section 326 is located between the downstream end of the conveyor 44 of the radiation examination apparatus 32 and the upstream end of the second conveyance section 26 . Therefore, the downstream conveyance section 326 is inclined downward from the upstream side toward the downstream side. The height of the conveyance surface of the second conveyance unit 26 is made closer to the height of the conveyance surface 45 of the conveyor 44 of the radiation examination apparatus 32 as it approaches the conveyor 44 of the radiation examination apparatus 32 .

The operation of the radiation inspection system 24 of the baggage processing system 10 will be explained.

The cargo transported by the first transport section 22 to the radiological examination system 24 is transferred from the downstream end of the first transport section 22 to the upstream end of the upstream transport section 322 . The upstream transport section 322 puts the cargo into the upstream box 256 through the opening 256b of the upstream box 256. When the baggage is transferred from the first conveyance unit 22 to the upstream conveyance unit 322, the conveyance direction of the baggage, which has shifted in the Z-axis direction, gradually approaches the conveyance direction D of the conveyor 44 of the radiological examination apparatus 32. The baggage is transferred from the upstream conveyance section 322 to the conveyor 44 of the radiological examination apparatus 32. Therefore, the baggage is transferred from the first conveyance section 22 to the conveyor 44 of the radiation inspection apparatus 32.

The baggage delivered to the conveyor 44 of the radiation inspection device 32 is exposed to radiation from the radiation generator 46 in the shielding box 50 of the radiation inspection device 32, and is subjected to a radiation inspection. At this time, radiation may leak from the entrance 50a and exit 50b of the shielding box 50. Radiation leaking from the entrance 50a of the shielding box 50 is blocked by the upstream box 256 between the entrance 50a of the shielding box 50 and the shielding part 256a. Radiation leaking from the outlet 50b of the shielding box 50 is blocked by the downstream box 258 between the outlet 50b of the shielding box 50 and the shielding part 258a.

In this way, the radiation inspection system 24 according to the present modification uses the first transport device 234a and the second transport device 234b instead of the protective curtains 52 and 54, thereby preventing radiation from leaking to the outside of the shielding box 50. This can be prevented.

Note that the inspected baggage that has been conveyed to the conveyor 44 of the radiation inspection system 24 is delivered from the downstream end of the conveyor 44 of the radiation inspection system 24 to the upstream end of the downstream conveyance section 326. The cargo is transported through the opening 258b of the downstream box 258 to the downstream end of the downstream transport section 326. At the downstream end of the downstream conveyance section 326, the cargo is transferred to the second conveyance section 26. The cargo is transported from the second transport section 26 toward the post-inspection transport area 16 on the downstream side.

In the radiation inspection system 24 according to this modification, since the protective curtains 52 and 54 are not present at the entrance 50a and the exit 50b of the shielding box 50, it is possible to prevent cargo from accumulating at the entrance 50a and the exit 50b of the shielding box 50. be done. The radiation examination system 24 can perform the radiation examination of each baggage in the same order as they were transported by the first transport unit 22 (in the order of P91, P92, P93, P94, P95, and P96).

As described above, according to this modification, it is possible to provide the first transport device 234a and the radiation examination system 24 that can prevent luggage from staying at the entrance 50a of the radiation examination apparatus 32. According to this modification, it is possible to provide the second transport device 234b and the radiation examination system 24 that can prevent luggage from remaining at the exit 50b of the radiation examination apparatus 32.

(Third modification)
A third modification of the fifth embodiment will be described using FIG. 27.

The radiation examination system 24 includes a radiation examination apparatus 32, a first transport device 234a, and a second transport device 234b.

The first conveyance device 234a controls the conveyance direction of the baggage with respect to the upstream box (shielding body) 256 and the conveyance direction D of the conveyor 44 of the radiation inspection device 32 (the direction of radiation leakage at the entrance 50a of the shielding box 50). It has an upstream lift (upstream conveyance section) 422 for shifting. This modification uses an upstream lift 422 instead of the upstream transport section 322 described in the second modification of the fifth embodiment. The lift 422 is located downstream of the first transport section 22 and can move the cargo transported by the first transport section 22 from the bottom to the top along the Z axis. The upper surface (transport surface) of the lift (transport unit) 422 is movable in the vertical direction. The upper surface of the lift 422 can be placed at the same height as the conveying surface 45 of the conveyor 44 of the radiological examination device 32. When the lift 422 is moved upward, it can deliver the cargo to the conveyor 44 of the radiation inspection device 32.

Note that the lift 422 can be placed at a position where the cargo is delivered to the conveyor 44 of the radiological examination apparatus 32 through the opening 256b penetrating the upstream box (shielding body) 256 in the Z-axis direction.

Similarly, the second conveyance device 234b transports the cargo with respect to the downstream box (shielding body) 258 and the conveyance direction D of the conveyor 44 of the radiation inspection device 32 (the direction of radiation leakage at the exit 50a of the shielding box 50). It has a downstream lift (downstream conveyance section) 426 that shifts the conveyance direction. This modification uses a downstream lift 426 instead of the downstream transport section 326 described in the first modification of the fifth embodiment. The lift 426 is located downstream of the conveyor 44 of the radiation examination apparatus 32, and can move the cargo conveyed by the conveyor 44 of the radiation examination apparatus 32 from the upper side to the lower side along the Z axis. The upper surface (transport surface) of the lift (transport unit) 426 is movable in the vertical direction. The upper surface of the lift 426 can be placed at the same height as the conveying surface 45 of the conveyor 44 of the radiological examination device 32 . When moved upwardly, the lift 426 can receive a load from the conveyor 44 of the radiological examination device 32.

Note that the lift 426 can be placed at a position to receive cargo from the conveyor 44 of the radiological examination apparatus 32 through an opening 258b penetrating the downstream box (shielding body) 258 in the Z-axis direction.

In the radiation inspection system 24 according to this modification, since the protective curtains 52 and 54 are not present at the entrance 50a and the exit 50b of the shielding box 50, the baggage is prevented from staying at the entrance 50a and the exit 50b of the shielding box 50. . The radiation inspection system 24 can perform the radiation inspection of each baggage in the same order as they were conveyed by the first conveyance unit 22 (in the order of P101, P102, P103, and P104).

As described above, according to this modification, it is possible to provide the first transport device 234a and the radiation examination system 24 that can prevent luggage from staying at the entrance 50a of the radiation examination apparatus 32. According to this modification, it is possible to provide the second transport device 234b and the radiation examination system 24 that allow the baggage to remain at the exit 50b of the radiation examination apparatus 32.

[Additional notes]
(Additional note 1)
A transport device for use with a radiation inspection device that inspects a test object by irradiating radiation onto the test object transported along a transport path in a predetermined transport direction,
an upstream blocking part that is located on the upstream side of the transporting direction of the transport path and blocks radiation that may leak from inside the radiation testing apparatus through the entrance of the radiation testing apparatus, and the upstream blocking part and the radiation an upstream shield that is located between the transport path of the inspection device, has an opening that opens in a direction different from the transport direction, and extends upstream from the radiographic examination device along the transport direction;
an upstream transport section that transports the test object from outside to inside of the upstream shield through the opening of the upstream shield;
A conveyance device having:
(Additional note 2)
A transport device for use with a radiation inspection device that inspects a test object by irradiating radiation onto the test object transported along a transport path in a predetermined transport direction,
a downstream blocking part that is located on the downstream side of the transporting direction of the transport path and blocks radiation that may leak from inside the radiation testing apparatus through an exit of the radiation testing apparatus; and the downstream blocking part and the radiation a downstream shield that is located between the radiation inspection device and the transportation path, has an opening that opens in a direction different from the transportation direction, and extends downstream from the radiation inspection device along the transportation direction;
a downstream conveyance unit that conveys the test object from the inside to the outside of the downstream shield through the opening of the downstream shield;
A conveyance device having:
(Additional note 3)
The upstream end or downstream end of the transport path is adjacent to the downstream end or upstream end of the transport section,
According to appendix 1 or 2, the upstream end or downstream end of the conveyance surface of the conveyance path and the upstream end or downstream end of the conveyance surface of the conveyance section are at approximately the same height. The conveying device described.
(Additional note 4)
The conveyance device according to Supplementary Note 1 or 2, wherein the height of the conveyance surface of the conveyance unit is made closer to the height of the conveyance surface of the conveyance path as it approaches the conveyance path.
(Appendix 5)
The conveyance device according to appendix 1 or 2, wherein the conveyance direction of the conveyance surface of the conveyance path is in the same plane as the conveyance direction of the conveyance surface of the conveyance section.
(Appendix 6)
The conveying surface of the conveying section is movable in the vertical direction,
The conveyance device according to Supplementary Note 1 or 2, wherein the conveyance surface of the conveyance section can be arranged at the same height as the conveyance surface of the conveyance path.
As explained above, according to the above-described embodiment, the transport auxiliary device 34, 134 and the transport device 234a are capable of preventing baggage from accumulating at the entrance 50a or exit 50b of the radiation inspection device 32 such as an X-ray inspection device. , 234b, and the radiographic examination system 24 can be provided.

Although several embodiments of the invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention, as well as within the scope of the invention described in the claims and its equivalents.
The claims of this application as filed are appended below.
[Additional note 1]
A transport auxiliary device for use with a radiation inspection device that inspects a test object by irradiating radiation onto the test object transported along a transport path in a predetermined transport direction,
A transport auxiliary device, comprising a pushing part that pushes the object to be inspected along the transport direction into at least one of obstacles provided at an entrance and an exit of the radiological examination apparatus to prevent leakage of radiation.
[Additional note 2]
The pushing part is
a transport section that is provided upstream of the transport path of the radiation inspection apparatus and has a transport surface that transports the object to the transport path;
one or more protrusions projecting upward from the conveyance surface;
The conveyance auxiliary device according to Supplementary Note 1, which has:
[Additional note 3]
The pushing part is provided above the conveyance path in the radiation examination apparatus or above the conveyance path on an upstream side of the radiation examination apparatus, and is arranged in a direction toward and away from the obstacle, and The conveyance auxiliary device according to Supplementary note 1 or 2, comprising a pressing portion movable in a direction approaching the conveyance path and a direction intersecting the direction of approaching and separating away from the conveyance path.
[Additional note 4]
A transport auxiliary device for use with a radiation inspection device that inspects a test object by irradiating radiation onto the test object transported along a transport path in a predetermined transport direction,
a first auxiliary conveyor on the upstream side, which is located upstream of the conveyance path of the radiation examination apparatus and carries the test object toward the radiation examination apparatus; and a first auxiliary conveyor located downstream of the conveyance path of the radiation examination apparatus, which is located downstream of the radiation examination apparatus. an auxiliary conveyor section having at least one of a second auxiliary conveyor on the downstream side that takes out the test object from the apparatus;
When the first upstream auxiliary conveyor is present, it extends from the entrance of the radiation inspection device to the upstream side of the downstream end of the upstream first auxiliary conveyor in the conveying direction to prevent leakage of radiation; When there is a tunnel-shaped upstream box and the second downstream auxiliary conveyor, the area is downstream in the conveyance direction from the outlet of the radiographic inspection device than the upstream end of the downstream second auxiliary conveyor. a box part having a tunnel-shaped downstream box extending to the bottom and preventing radiation leakage;
When the upstream box is present, an upstream obstacle is suspended above the upstream first auxiliary conveyor from the upstream box toward the upstream first auxiliary conveyor to prevent radiation leakage. and when the downstream box is present, the downstream box is suspended from the downstream box toward the downstream second auxiliary conveyor above the downstream second auxiliary conveyor to prevent radiation leakage. having an obstacle, an obstacle;
When there is an upstream obstacle in the upstream box, an upstream pushing part is provided for pushing the object into the upstream obstacle from an upstream side to a downstream side of the object; When there is the downstream obstacle in the downstream box, the pushing part has a downstream pushing part that pushes the object to be inspected from the upstream side to the downstream obstacle with respect to the object to be inspected.
A conveyance auxiliary device with
[Additional note 5]
The first auxiliary conveyor on the upstream side of the auxiliary conveyor section is an upstream conveyor that moves the object to be inspected, which is delivered from the first conveyance section upstream of the first auxiliary conveyor on the upstream side, from the upstream side to the downstream side. has a surface,
The conveyance auxiliary device according to appendix 4, wherein the upstream pushing part of the pushing part has one or more protrusions that protrude upward from the upstream conveying surface.
[Additional note 6]
The second auxiliary conveyor on the downstream side of the auxiliary conveyor section has a downstream conveyance surface that moves the object to be examined from the upstream side to the downstream side, which is delivered from the conveyance path of the radiation inspection device,
The conveyance auxiliary device according to appendix 4 or 5, wherein the downstream push-in portion of the push-in portion has one or more protrusions that protrude upward from the downstream conveyance surface.
[Additional note 7]
The distance along the conveyance direction between the downstream end of the first upstream auxiliary conveyor and the upstream obstacle is the distance between the upstream end of the downstream second auxiliary conveyor and the downstream obstacle. The conveyance auxiliary device according to any one of Supplementary notes 4 to 6, which is smaller than the distance along the conveyance direction between.
[Additional note 8]
When the first auxiliary conveyor on the upstream side and the upstream box are not present, the pushing part is provided above the conveyance path of the radiation examination apparatus on the upstream side to prevent leakage of radiation from the radiation examination apparatus. It is movable in a direction in which the entrance of the radiation examination apparatus approaches and leaves the upstream obstacle, and in a direction that approaches the transport path and in a direction that intersects with the direction in which it approaches and separates from the transport path. The conveyance auxiliary device according to supplementary note 4, which has a pressing part.
[Additional note 9]
When the second auxiliary conveyor on the downstream side is not provided, the pushing part is provided above the conveyance path in the radiographic examination apparatus or above the downstream side of the radiographic examination apparatus, and is configured to prevent obstacles from occurring. The conveyance auxiliary device according to supplementary note 4, comprising a pressing portion movable in a direction of approaching and separating, a direction approaching the conveyance path, and a direction intersecting the direction of approaching and separating away from the conveyance path.
[Additional note 10]
a radiation inspection device that irradiates a test object transported in a predetermined transport direction along a transport path with radiation to inspect the test object;
A transport auxiliary device according to any one of Supplementary Notes 1 to 9, which is used together with the radiation inspection device;
A radiological inspection system with

DESCRIPTION OF SYMBOLS 10... Baggage processing system, 12... Baggage registration area, 14... Radiation inspection area, 16... Post-examination transport area, 22... First transport section, 24... Radiation inspection system, 26... Second transport section, 32... Radiation inspection device , 34... Conveyance auxiliary device, 36... Baggage detection device, 38... Control unit, 42... Base, 44... Conveyor, 45... Conveyance surface, 46... Radiation generator, 48... Line sensor, 50... Radiation shielding box, 50a... Entrance, 50b...Exit, 52...Upstream radiation protection curtain, 54...Downstream radiation protection curtain, 60...Pushing part, 62...Auxiliary conveyor, 64...Transportation surface, 66...Protrusion.

Claims (10)

A transport auxiliary device for use with a radiation inspection device that inspects a test object by irradiating radiation onto the test object transported along a transport path in a predetermined transport direction,
comprising a pushing part that pushes the upstream side of the object to be examined downstream along the conveyance direction with respect to at least one of obstacles provided at the entrance and exit of the radiological examination apparatus to prevent leakage of radiation; Transport auxiliary equipment. A transport auxiliary device for use with a radiation inspection device that inspects a test object by irradiating radiation onto the test object transported along a transport path in a predetermined transport direction,
a pushing part for pushing the object to be inspected along the conveyance direction into at least one of obstacles provided at an entrance and an exit of the radiation inspection apparatus to prevent leakage of radiation;
The pushing part is
a transport section that is provided upstream of the transport path of the radiation inspection apparatus and has a transport surface that transports the object to the transport path;
and one or more protrusions projecting upward from the conveyance surface. The pushing part is provided above the conveyance path in the radiation examination apparatus or above the conveyance path on an upstream side of the radiation examination apparatus, and is arranged in a direction toward and away from the obstacle, and The conveyance auxiliary device according to claim 1 or 2, further comprising a pressing portion movable in a direction approaching the conveyance path and a direction intersecting the direction of approaching and separating away from the conveyance path. A transport auxiliary device for use with a radiation inspection device that inspects a test object by irradiating radiation onto the test object transported along a transport path in a predetermined transport direction,
a first auxiliary conveyor on the upstream side, which is located upstream of the conveyance path of the radiation examination apparatus and carries the test object toward the radiation examination apparatus; and a first auxiliary conveyor located downstream of the conveyance path of the radiation examination apparatus, which is located downstream of the radiation examination apparatus. an auxiliary conveyor section having at least one of a second auxiliary conveyor on the downstream side that takes out the test object from the apparatus;
When the first upstream auxiliary conveyor is present, it extends from the entrance of the radiation inspection device to the upstream side of the downstream end of the upstream first auxiliary conveyor in the conveying direction to prevent leakage of radiation; When there is a tunnel-shaped upstream box and the second downstream auxiliary conveyor, the area is downstream in the conveyance direction from the outlet of the radiographic inspection device than the upstream end of the downstream second auxiliary conveyor. a box part having a tunnel-shaped downstream box extending to the bottom and preventing radiation leakage;
When the upstream box is present, an upstream obstacle is suspended above the upstream first auxiliary conveyor from the upstream box toward the upstream first auxiliary conveyor to prevent radiation leakage. and when the downstream box is present, the downstream box is suspended from the downstream box toward the downstream second auxiliary conveyor above the downstream second auxiliary conveyor to prevent radiation leakage. having an obstacle, an obstacle;
When there is an upstream obstacle in the upstream box, the upstream surface of the test object is moved along the transport direction with respect to the upstream obstacle from the upstream side to the downstream side with respect to the test object. and an upstream pushing part that pushes the object downstream from the upstream side of the test object when the downstream obstruction is present in the downstream box. A transport auxiliary device comprising: a downstream pushing part that pushes an upstream side surface of the specimen to the downstream side along the transport direction ; and a pushing part. A transport auxiliary device for use with a radiation inspection device that inspects a test object by irradiating radiation onto the test object transported along a transport path in a predetermined transport direction,
a first auxiliary conveyor on the upstream side, which is located upstream of the conveyance path of the radiation examination apparatus and carries the test object toward the radiation examination apparatus; and a first auxiliary conveyor located downstream of the conveyance path of the radiation examination apparatus, which is located downstream of the radiation examination apparatus. an auxiliary conveyor section having at least one of a second auxiliary conveyor on the downstream side that takes out the test object from the apparatus;
When the first upstream auxiliary conveyor is present, it extends from the entrance of the radiation inspection device to the upstream side of the downstream end of the upstream first auxiliary conveyor in the conveying direction to prevent leakage of radiation; When there is a tunnel-shaped upstream box and the second downstream auxiliary conveyor, the area is downstream in the conveyance direction from the outlet of the radiographic inspection device than the upstream end of the downstream second auxiliary conveyor. a box part having a tunnel-shaped downstream box extending to the bottom and preventing radiation leakage;
When the upstream box is present, an upstream obstacle is suspended above the upstream first auxiliary conveyor from the upstream box toward the upstream first auxiliary conveyor to prevent radiation leakage. and when the downstream box is present, the downstream box is suspended from the downstream box toward the downstream second auxiliary conveyor above the downstream second auxiliary conveyor to prevent radiation leakage. having an obstacle, an obstacle;
When there is an upstream obstacle in the upstream box, an upstream pushing part is provided for pushing the object into the upstream obstacle from an upstream side to a downstream side of the object; When there is the downstream obstacle in the downstream box, the pushing part has a downstream pushing part that pushes the object to be inspected from the upstream side to the downstream obstacle with respect to the object to be inspected.
has
The first auxiliary conveyor on the upstream side of the auxiliary conveyor section is an upstream conveyor that moves the object to be inspected, which is delivered from the first conveyance section upstream of the first auxiliary conveyor on the upstream side, from the upstream side to the downstream side. has a surface,
The upstream pushing part of the pushing part has one or more protrusions projecting upward from the upstream carrying surface. A transport auxiliary device for use with a radiation inspection device that inspects a test object by irradiating radiation onto the test object transported along a transport path in a predetermined transport direction,
a first auxiliary conveyor on the upstream side, which is located upstream of the conveyance path of the radiation examination apparatus and carries the test object toward the radiation examination apparatus; and a first auxiliary conveyor located downstream of the conveyance path of the radiation examination apparatus, which is located downstream of the radiation examination apparatus. an auxiliary conveyor section having at least one of a second auxiliary conveyor on the downstream side that takes out the test object from the apparatus;
When the first upstream auxiliary conveyor is present, it extends from the entrance of the radiation inspection device to the upstream side of the downstream end of the upstream first auxiliary conveyor in the conveying direction to prevent leakage of radiation; When there is a tunnel-shaped upstream box and the second downstream auxiliary conveyor, the area is downstream in the conveyance direction from the outlet of the radiographic inspection device than the upstream end of the downstream second auxiliary conveyor. a box part having a tunnel-shaped downstream box extending to the bottom and preventing radiation leakage;
When the upstream box is present, an upstream obstacle is suspended above the upstream first auxiliary conveyor from the upstream box toward the upstream first auxiliary conveyor to prevent radiation leakage. and when the downstream box is present, the downstream box is suspended from the downstream box toward the downstream second auxiliary conveyor above the downstream second auxiliary conveyor to prevent radiation leakage. having an obstacle, an obstacle;
When there is an upstream obstacle in the upstream box, an upstream pushing part is provided for pushing the object into the upstream obstacle from an upstream side to a downstream side of the object; When there is the downstream obstacle in the downstream box, the pushing part has a downstream pushing part that pushes the object to be inspected from the upstream side to the downstream obstacle with respect to the object to be inspected.
has
The second auxiliary conveyor on the downstream side of the auxiliary conveyor section has a downstream conveyance surface that moves the object to be examined from the upstream side to the downstream side, which is delivered from the conveyance path of the radiation inspection device,
The downstream pushing part of the pushing part has one or more protrusions that protrude upward from the downstream carrying surface. The distance along the conveyance direction between the downstream end of the first upstream auxiliary conveyor and the upstream obstacle is the distance between the upstream end of the downstream second auxiliary conveyor and the downstream obstacle. The conveyance auxiliary device according to any one of claims 4 to 6, wherein the conveyance assisting device is smaller than the distance along the conveyance direction between the two. When the first auxiliary conveyor on the upstream side and the upstream box are not present, the pushing part is provided above the conveyance path of the radiation examination apparatus on the upstream side to prevent leakage of radiation from the radiation examination apparatus. It is movable in a direction in which the entrance of the radiographic examination apparatus approaches and leaves the upstream obstacle, and in a direction that approaches the transport path and in a direction that intersects with the direction in which it approaches and separates from the transport path. The conveyance auxiliary device according to claim 4, comprising a pressing section. When the second auxiliary conveyor on the downstream side is not provided, the pushing part is provided above the conveyance path in the radiographic examination apparatus or above the downstream side of the radiographic examination apparatus, and is configured to prevent obstructions from occurring. The conveyance auxiliary device according to claim 4, further comprising a pressing portion movable in a direction of approaching and separating, and a direction intersecting the direction of approaching and separating, approaching the conveyance path and separating from the conveyance path. a radiation inspection device that irradiates a test object transported in a predetermined transport direction along a transport path with radiation to inspect the test object;
A radiation examination system comprising: the transport auxiliary device according to any one of claims 1 to 9, which is used together with the radiation examination apparatus.