JP7653349B2 - DAMAGE REDUCTION DEVICE FOR LINEAR MEMBER CONNECTED TO MOBILE OBJECT, AND MONITORING SYSTEM HAVING DAMAGE REDUCTION DEVICE - Google Patents

Description

The present invention relates to a wear and tear suppression device for a linear member connected to a moving object that moves laterally in space, and a surveillance system having a wear and tear suppression device.

Flying vehicles are now being used to investigate infrastructure facilities. For example, in the case of a sewer pipe that is emitting hydrogen sulfide, if an aircraft deployed for investigation falls, humans cannot go and retrieve it. A recovery string is attached to the aircraft in advance, and if it falls, it can be retrieved by towing the linear member from the ground. However, when the aircraft moves in the extension direction of the sewer pipe, part of the linear member connected to the aircraft comes into contact with the wall or edge of the manhole and becomes worn, reducing its durability and, in the worst case, breaking. Similarly, when retrieving a fallen aircraft, part of it comes into contact with the wall or edge of the manhole and becomes worn. Therefore, a mechanism is needed to prevent the linear member from coming into contact with the wall or edge.

In relation to this issue, the technology described in Patent Document 1 is known. In Patent Document 1, by connecting the cable via a cable guide that is longer than the manhole and a cable guide roller at the end of the cable guide, it is possible to prevent the cable from coming into contact with the wall or edge of the manhole.

JP 2019-167044 A

However, in the case of sewer pipes located deep inside the building, it is necessary to prepare a long cable guide, as described in Patent Document 1. If the cable guide is a long object such as a rod, there is an issue that it is not easy to prepare and handle.

The object of the present invention is to provide a device for preventing wear and tear of a linear member connected to a moving body, which prevents the linear member from coming into contact with the wall of a manhole or the edge of a sewer pipe, even when the moving body connected to the linear member is moved inside a sewer pipe located deep inside the pipe.

Another object of the present invention is to provide a surveillance system having a wear and tear prevention device that prevents wear and tear on linear members attached to a moving object.

In view of the above, one aspect of the wear suppression mechanism of the present invention is a wear suppression device for a linear member, which comprises a linear member that hangs down from the entrance of the space into the lower space of the space and is connected to a moving body that moves laterally in the lower space, a hanging member that hangs down from the entrance of the space into the lower space, and a direction changing member that engages with the linear member and the hanging member, keeps the linear member and the hanging member at a predetermined distance, and changes the orientation of the linear member relative to the hanging member to suppress wear of the linear member connected to the moving body.

Alternatively, the wear and tear suppression device includes a direction change section hanging string that is connected to the direction change member and can be used to lower and pull up the direction change member.

Alternatively, the hanging member of the wear suppression device is provided with a weight.

Alternatively, the redirecting member of the wear suppression device has a ring through which the linear member and the hanging member pass.

Alternatively, the direction-changing member of the wear suppression device has a first ring through which the linear member passes, a second ring through which the hanging member passes, and a joint that joins the first ring and the second ring.

Alternatively, the direction-changing member of the wear and tear prevention device is structured so that it can be lowered downward along the hanging member, and is equipped with a downward movement prevention part that prevents the direction-changing member from moving downward beyond a predetermined position.

Alternatively, the wear reduction device includes a fixing device that fixes at least one of the linear member or the hanging member so that the withdrawal length does not increase.

Alternatively, the linear member of the wear and tear suppression device includes at least one of a retrieval string, a power line, a signal line, and a fluid pipe.

Alternatively, the wear reduction device has an in-pipe information acquisition member that is fixed at one end to a fixing device and suspended from the entrance of the space into the lower space, and the in-pipe information acquisition member is equipped with at least one of an antenna that transmits and receives radio waves to and from the moving body, a light that illuminates the direction of the moving body, and a camera that captures an image in the direction that includes the moving body.

One aspect of the monitoring system of the present invention is a monitoring system having a wear and tear suppression device, which includes a moving body that is suspended from an entrance of the space into the space below and moves laterally in the space below, a linear member connected to the moving body, a hanging member that is suspended from the entrance of the space into the space below, and a direction changing member that engages with the linear member and the hanging member, keeps the linear member and the hanging member at a predetermined distance, and changes the orientation of the linear member relative to the hanging member, thereby suppressing wear and tear of the linear member connected to the moving body.

Alternatively, the moving body of the monitoring system is at least one of an air vehicle, a water surface floating body, and a vehicle-type traveling body.

According to the present invention, even when flying an aircraft with a linear member connected to it in a deep sewer pipe, it is possible to prevent the linear member from coming into contact with the wall of the manhole or the edge of the sewer pipe, which can cause wear and reduce durability, and in the worst case, even break. Since a hanging member made of an easily bendable material such as string or rope is used instead of a long cable guide, preparation and handling are easy.

FIG. 1 is a schematic cross-sectional view of a flying object flying inside a sewer pipe below a manhole, according to a first embodiment of the present invention. 1A and 1B are cross-sectional and plan views of a direction-changing member according to a first embodiment of the present invention, the direction-changing member being configured with two rings and a joint body; 1A and 1B are cross-sectional and plan views of a direction-changing member according to a first embodiment of the present invention, the direction-changing member being composed of one ring, one cylinder, and a joint; 1A and 1B are cross-sectional and plan views of a direction-changing member according to a first embodiment of the present invention, the direction-changing member being composed of one ring, one cylinder, a joint, and a reinforcing material capable of maintaining an angle θ between the joints. 4A and 4B are cross-sectional and plan views of a direction-changing member according to the first embodiment of the present invention, the direction-changing member being configured with two rings; 1A and 1B are cross-sectional and plan views of a direction-changing member according to the first embodiment of the present invention, the direction-changing member being configured with one ring; 1A and 1B are cross-sectional and plan views of a first embodiment of the present invention in which a direction-changing member is made up of two rings and a joint, and a downward movement suppression member is fixed to a hanging member. 4A and 4B are side and plan views illustrating a state in which a downward movement suppressing member is fixed to a hanging member according to the first embodiment of the present invention; FIG. 11 is a schematic cross-sectional view of an aircraft in flight when a component is added according to a second embodiment of the present invention. FIG. 11 is an enlarged view of an example of a lower end portion of an in-pipe information acquisition hanging member according to a second embodiment of the present invention. FIG. 11 is a plan view showing an example of a fixing device according to a second embodiment of the present invention; FIG. 11 is a side view illustrating a fixing device according to a second embodiment of the present invention. 13A and 13B are cross-sectional and plan views of a direction-changing member according to a second embodiment of the present invention, the direction-changing member being composed of two rings and a joint body, and one direction-changing portion hanging string being connected thereto. FIG. 11 is a schematic cross-sectional view showing a third embodiment of the present invention, in which the moving body is a water surface floating body moving laterally inside a sewer pipe below a manhole.

Below, the embodiments for carrying out the present invention will be described with reference to the drawings. Note that in each drawing, the dimensions and scale of each part are appropriately different from the actual ones. In addition, the embodiments described below are preferred examples of the present invention, and therefore various technically preferable limitations are applied, but the scope of the present invention is not limited to these embodiments unless otherwise specified in the following description to the effect that the present invention is limited.

Note that examples of the mobile body of the present invention include aircraft, vehicle-type running bodies, ships, and other bodies that float on the water surface for use in investigating inside sewer pipes and storm drains, but it may also be a mobile body for investigating infrastructure that workers cannot easily enter, such as storm drains, storage pipes, agricultural water tunnels, and utility sewer pipes.

Figure 1 is a schematic cross-sectional view of a first embodiment of the present invention, in which a mobile object 12 is an aircraft such as a drone, and the aircraft is flying inside a sewer pipe 10c below a manhole 10b.

The space 10 has, for example, an entrance 10a that opens when a manhole cover is opened on the ground, a lower space 10c such as inside a sewer pipe, a storage pipe, an agricultural water tunnel, or a utility sewer, through which a mobile object 12 such as a drone moves laterally, and a vertical hole (connection hole) 10b that connects the entrance 10a to the lower space 10c that extends downward.

A linear member 14 is connected to the moving body 12 that can move laterally in the lower space 10c of the space 10. The linear member 14 hangs down from the entrance 10a of the space 10 toward the lower space 10c in the space 10, and may be any of the following: a recovery string that moves the moving body 12 in and out of the space 10, a power cable that supplies power to the moving body 12, an information cable that exchanges electrical signals or optical signals with the moving body 12, and a tube that supplies gas or liquid mechanical energy to the moving body 12. The linear member 14 passes through a ring at one end of a linear member direction change member 18 (hereinafter, direction change member 18). The moving body 12 that moves laterally in the lower space 10c is equipped with a camera and lighting, and is configured to take pictures of the state of the lower space 10c and transmit information via the linear member 14 so that a monitor on the ground can see the state of the lower space 10c.

The direction-changing member 18 engages with the linear member 14 and the hanging member 16, and has the function of keeping the linear member 14 and the hanging member 16 at a predetermined distance and changing the direction of the linear member 14 relative to the hanging member 16. As the moving body 12 moves laterally, the extension of the linear member 14 is unwound from the ground and supplied.

The hanging member 16 hangs from the entrance 10a of the space toward the lower space 10c. The string 19 of the hanging member 16 passes through the ring at the other end of the direction-changing member 18, so even if the moving body 12 moves laterally and the linear member 14 is pulled laterally as a result, the linear member 14 does not move away from the hanging member 16 by more than a certain distance.

The hanging member 16 has a string 19 and a weight. The string 19 of the hanging member 16 is made of a wire rope, chain, plastic tube, etc. If the string 19 of the hanging member 16 has sufficient strength and weight, a weight is not necessary. By appropriately setting the distance between the two rings of the direction change member 18 and their vertical positions, the risk of the linear member 14 coming into contact with the wall surface or sharp edges of the space 10 can be reduced, and wear and tear can be suppressed. As a result, the risk of the linear member 14 breaking can be minimized.

The inside of the ring of the direction-changing member 18, where the linear member 14 and the hanging member 16 come into contact, is desirably made of a smooth metal or resin with low frictional resistance. It is desirable for the ring to have no edges, such as a circular cross section, so that the linear member 14 and the hanging member 16 do not get caught.

To reduce the effort required for attachment and removal, the ring may be realized as a carabiner or hook. A rotating pulley may be used at the part where the linear member 14 comes into contact. When a pulley is used, the resistance at the point where the linear member 14 changes direction can be significantly reduced, which not only reduces wear on the linear member 14 but also reduces the energy required to move the moving body 12 laterally. In the case of a pulley, it is preferable to incorporate a bearing in the shaft part.

When the moving body 12 is an air vehicle such as a drone, it is desirable that no external force that would cause the aircraft to tilt is applied at the start of flight or during flight. If the distance between the linear member 14 and the hanging member 16 is too close, the moving body 12 will come into contact with the hanging member 16 and an external force will be applied. In particular, the aircraft may tilt at the start of flight, causing adverse effects. For this reason, this adverse effect can be reduced by connecting the two rings of the direction changing member 18 with a rod-shaped material such as wire, piano wire, hard resin, or aluminum material so that the distance between the two rings of the direction changing member 18 is equal to or greater than half the horizontal length of the moving body 12.

The damage prevention device includes a linear member 14, a hanging member 16, and a direction changing member 18, and the surveillance system includes, in addition to the damage prevention device, a mobile body such as a drone that is connected to the linear member 14 of the damage prevention device.

As shown in Figure 1, in order to check the condition of the space 10 and the electric wires installed within the space 10, first the hanging member 16 is dropped into the manhole, and then the moving body 12 to which the linear member 14 is connected is moved downward into the space 10. As the moving body 12 moves, the direction changing member 18 moves downward into the space, and the downward movement is restricted by the downward movement suppression member 26 (see Figure 7), which will be described later.

Figure 2 shows an example of a cross-sectional view and a plan view of a direction-changing member 18 that is composed of two rings and a joint. The left ring has the linear member 14 penetrating (internal passage) through the inside, and the right ring has the string 19 of the hanging member 16 penetrating (internal passage) through the inside. The angle θ between the string 19 of the hanging member 16 and the joint of the direction-changing member 18 is shown in the figure. Since a vertical downward force acts on the direction-changing member 18 due to gravity, the angle θ in the case of the structure in Figure 2 changes from 0 degrees to 180 degrees, and the possibility that the moving body 12 will come into contact with the string 19 of the hanging member 16 increases. If the moving body 12 is a water surface floating body, the angle θ can be maintained close to 90 degrees by making the direction-changing member 18 out of a material or structure that floats on water, so that the moving body 12 can be prevented from coming into contact with the string 19 of the hanging member 16 and tilting.

Figure 3 shows an example of a cross-sectional view and a plan view of a direction-changing member 18 that is composed of one ring 31, one cylinder 32, and a joint that joins the ring 31 and the cylinder 32. The ring 31 on the left has the linear member 14 penetrating (internal passage) through the inside, and the cylinder 32 on the right has the string 19 of the hanging member 16 penetrating (internal passage) through the inside.

For this cylinder 32 as well, the inside and the upper and lower openings where the hanging member 16 comes into contact are preferably made of a smooth metal or resin with low friction resistance, and preferably have no edges so that the string 19 of the hanging member 16 does not get caught.

The angle θ between the string 19 of the hanging member 16 and the joint of the direction change member 18 is shown in the figure. A vertical force acts on the direction change member 18 due to gravity, but by adopting the structure of Figure 3, the part of the string 19 of the hanging member 16 and the cylinder 32 on the right side of the direction change member 18 come into contact, preventing the joint of the direction change member 18 from becoming tilted, and the angle θ can be maintained at an angle close to 90 degrees. As mentioned above, if the object used as the moving body 12 is an air vehicle such as a drone, the structure of Figure 3 can be used to prevent the moving body 12 from coming into contact with the string 19 of the hanging member 16. As a result, it is possible to obtain the advantage that the aircraft does not tilt when it starts flying.

Figure 4 shows an example of a cross-sectional view and a plan view of a direction-changing member 18 that is composed of one ring 31, one cylinder 32, a joint that joins the ring 31 and the cylinder 32, and a reinforcing member 33 that maintains the angle θ of the joint. The ring 31 on the left has the linear member 14 penetrating (internal) through the inside, and the cylinder 32 on the right has the string 19 of the hanging member 16 penetrating (internal) through the inside. θ is shown in the figure as the angle between the string 19 of the hanging member 16 and the joint of the direction-changing member 18.

Although gravity acts on the direction-changing member 18 in the downward vertical direction, the angle θ in the structure of FIG. 4 can be maintained close to 90 degrees. This is because the cord 19 of the hanging member 16 comes into contact with the cylinder on the right side of the direction-changing member 18, preventing the joint of the direction-changing member 18 from becoming inclined. As described above, when the moving body 12 is an aircraft such as a drone, the structure of FIG. 4 can prevent the moving body 12 from coming into contact with the cord 19 of the hanging member 16. Compared to the structure of FIG. 3, the provision of the reinforcing member 33 increases the possibility of maintaining the desired angle θ in terms of strength. As a result, the advantage of not tilting the aircraft at the start of flight can be obtained. If there is no problem with the moving body 12 coming into contact with the hanging member 16, the direction-changing member 18 may be realized with only a ring.

Figure 5 shows an example of a cross-sectional view and a plan view of a direction-changing member 18 consisting of only two rings, omitting the joint that joins the two rings or the ring and the cylinder. The linear member 14 penetrates (internal) the inside of the left ring 51, and the string 19 of the hanging member 16 penetrates (internal) the inside of the right ring 52. The two rings are connected to each other, and when the linear member 14 is pulled in the lateral direction, the string 19 of the hanging member 16 is also pulled in the same direction, suppressing the lateral movement of the direction-changing member 18 and the linear member 14. As a result, the risk of the linear member 14 coming into contact with the wall surface or edge of the space 10 can be reduced, and wear can be suppressed. As a result, the risk of the linear member 14 breaking can be minimized.

Figure 6 shows an example of a cross-sectional view and a plan view of a direction-changing member 18 that is composed of one common ring 61. On the left side of the ring, the linear member 14 passes through (internal passage) the inside, and on the right side of the common ring 61, the string 19 of the hanging member 16 passes through (internal passage) the inside. In this case, too, when the linear member 14 is pulled laterally, the string 19 of the hanging member 16 is also pulled in the same direction, suppressing the lateral movement of the direction-changing member 18 and the linear member 14. As a result, the risk of the linear member 14 coming into contact with the wall surface or edge of the space 10 can be reduced, and wear and tear can be suppressed. As a result, the risk of the linear member 14 breaking can be minimized.

The vertical position of the direction-changing member 18 can be achieved by providing a downward movement suppression member 26 (see Figure 7) at a predetermined location on the string 19 of the hanging member 16. By appropriately setting the installation position of this downward movement suppression member 26, it is possible to prevent the linear member 14 from contacting the wall surface or edge of the space 10.

Figure 7 shows an example of a cross-sectional view and a plan view of a downward movement suppression member 26 fixed to a hanging member. The left ring has the linear member 14 penetrating the inside (internal passage), and the right ring has the string 19 of the hanging member 16 penetrating the inside (internal passage). The angle θ between the string 19 of the hanging member 16 and the joint of the direction change member 18 is shown in the figure. Since gravity acts on the direction change member 18 in the vertical downward direction, it would slide down without the downward movement suppression member 26. As mentioned above, if the moving body 12 is a water surface floating body and the direction change member 18 is made of a material or structure that floats on water, the direction change member 18 will stay on the water surface and the downward movement suppression member 26 is not necessary, but if the moving body 12 is an aircraft or a vehicle-type running body, it is necessary to prevent the direction change member 18 from descending below a certain height. For this purpose, it is effective to fix a downward movement suppression member 26 to the string 19 of the hanging member 16 on the right side, the member being sized so that it does not penetrate the inner diameter of the ring or cylinder through which the string 19 of the hanging member 16 passes.

Figure 8 shows an example of a side view and a plan view of the downward movement suppression member 26 fixed to the string 19 of the hanging member 16. In this example, two planar solids 81 are fastened to the string 19 of the hanging member 16 with fasteners (bolts 82 and nuts 83), but other configurations such as a clip using a spring may be used as long as the function of preventing the direction change member 18 from dropping from the desired position is met.

At least a portion of the string 19 of the hanging member 16 is made of a material such as a string, rope, or wire that can be easily bent. The string 19 of the hanging member 16 can be wound around a bobbin, and by rotating the bobbin to unwind it, a long rod is not required even if the space 10 is deep, making it easy to handle. It is desirable that the string 19 of the hanging member 16 be made of a heavy material such as a thick rope or wire, or that a weight is attached to the tip so that it can be maintained in a state of being extended vertically downward.

Since the moving body 12 is connected to the hanging member 16 via the linear member 14 and the direction change member 18, even if a large lateral force is applied to the linear member 14, the hanging member 16 will bend less if it is made of a heavy material or has a weight attached, and the linear member 14 can be prevented from contacting the wall or edge of the space 10. In addition, if liquid such as sewage is flowing below the space 10 and the hanging member 16 comes into contact with the liquid, it is desirable to construct the hanging member 16 from a heavier material or to provide a heavier weight so that the hanging member 16 is not swept away by the flow of the liquid and becomes slanted or bent.

Figure 9 is a schematic cross-sectional view of a flying object flying inside a sewer pipe 10c of a manhole 10 when additional components are added according to a second embodiment of the present invention. In addition to the components of the first embodiment, a fixing device 90, a direction change section hanging string 92, and an in-pipe information acquisition member 97 are shown.

The direction change section hanging string 92 is connected to the direction change member 18 and is a member that is used to lower and pull up the direction change member 18.

The pipe information acquisition member 97 is a member that has one end fixed to the fixing device 90 and the other end, which is the lower end, that has an information acquisition section 94 that has an antenna 101, a camera 102, and a light 103, and is suspended from the entrance of the space 10 in the direction of the lower space 10c of the space 10.

The fixing device 90 is installed on the ground or within reach from the ground, and has a structure that prevents it from falling into the space 10. The fixing device 90 may be composed of any of a metal frame, rod, plate, etc. This fixing device 90 fixes at least one of the linear member 14 and the hanging member 16 so that the drawn-out length does not extend. The linear member 14, the direction change section hanging string 92, the hanging member 16, and the pipe information acquisition hanging member 97 are fixed to the fixing device 90, or a bobbin that can wind and unwind these as necessary, or that can hold the drawn-out length is fixed to the fixing device 90.

Figure 10 is an enlarged view of an example of the information acquisition unit 94 at the lower end of the pipe information acquisition member 97. The upper end of the pipe information acquisition member 97 is connected to a ground monitor 95 on the ground. The ground monitor 95 displays video captured by a camera 102 that captures video in the direction that includes the moving object.

The pipe information acquisition hanging member 94 is equipped with lighting 103 that illuminates the direction in which the moving object is located. The brighter the lighting, the more accurately the ground crew can check the flight status of the moving object 12 and the status of the space 10c via the ground monitor 95. The pipe information acquisition member 97 is also equipped with an antenna 101 that transmits and receives radio waves to and from the moving object. This antenna 101 is used not only for radio waves for control, but also for radio communication of video captured by the moving object 12, and may consist of one or more antennas. The pipe information acquisition member 97 may be equipped with not only the antenna wire of the communication device, but also the communication device itself in addition to the antenna.

Figure 11 is an example of a plan view of the fixing device 90 seen from above. Four bobbins are provided, and from the left, the linear member 14, the direction change section hanging string 92, the string 19 of the hanging member 16, and the inside pipe information acquisition member 97 are paid out, wound up, and fixed. This figure is just one example, and the four bobbins do not need to be in this order, and furthermore, they do not all need to be installed in parallel.

Figure 12 is an example of a side view of the fixing device 90. From the left, four bobbins are provided: the linear member 14, the direction change section hanging string 92, the string 19 of the hanging member 16, and the pipe internal information acquisition member 97. These four bobbins respectively show the linear member 14, the direction change section hanging string 92, the hanging member 16, and the pipe internal information acquisition member 97 hanging within the space 10. This figure is an example, and the four bobbins do not need to be in this order, and furthermore, they do not all need to be installed at the same height.

The direction change section hanging string 92 is fixed to the direction change member 18, and the inclination and position of the direction change member 18 can be fine-tuned by adjusting its length and position from the ground, etc.

Figure 13 shows an example of a cross-sectional view and a plan view of a direction-changing member 18 composed of two rings and a joint, to which one direction-changing section hanging cord 92 is connected. Linear member 14 passes through the inside of ring 132 on the left side, and cord 19 of hanging member 16 passes through the inside of ring 133 on the right side. θ is shown in the figure as the angle between cord 19 of hanging member 16 and the joint of direction-changing member 18. Gravity acts on direction-changing member 18 in the vertical downward direction, but because it is suspended from above by direction-changing section hanging cord 92, it is possible to maintain angle θ close to 90 degrees.

As described above, when the moving body 12 is an air vehicle such as a drone, the structure shown in FIG. 13 can prevent the moving body 12 from coming into contact with the string 19 of the hanging member 16, and has the advantage of preventing the aircraft from tilting, particularly at the start of flight. Unlike the case shown in FIG. 3 and FIG. 4, where a cylinder is used on the right side of the direction-changing member 18 and the resistance of the cylinder keeps the angle θ close to 90 degrees, a ring is used on the right side of the direction-changing member 18, so that the contact resistance is small and the possibility of the direction-changing member 18 getting caught when lowered from the ground can be reduced. Furthermore, even if the strength of the joint of the direction-changing member 18 is weak and easily bent, the length of the direction-changing section hanging string 92 can be adjusted from the ground to maintain the joint of the direction-changing member 18 closer to horizontal.

Although FIG. 13 shows only one direction change section hanging string 92, multiple direction change section hanging strings 92 may be provided, for example, two near the left ring 132 and two near the right ring 133.

Figure 14 is a schematic cross-sectional view of a third embodiment of the present invention, in which the moving body 12 is a water surface floating body moving laterally inside a sewer pipe below a manhole. The water surface floating body may be a ship, boat, life ring, floating sphere, or any other moving body that moves passively with the flow of water, or actively with a screw, propeller, wheels, or the like. When these water surface floating bodies are introduced from the ground, if there is no particular problem if a part of the water surface floating body comes into contact with the hanging member 16 and changes its orientation when it lands on the water surface, the direction changing member 18 may be a single ring as shown in Figure 6. Alternatively, two rings may be close to each other as shown in Figure 5.

As described above, by providing the hanging member 16 and the direction changing member 18, it is possible to prevent the linear member 14 connected to the moving body 12 moving laterally below the space 10 from coming into contact with a wall surface or edge and becoming worn out. By configuring the direction changing member 18 from a rod-shaped material with a length equal to or greater than half the width of the moving body 12, and by adding two rings or one ring and a cylinder, it is possible to prevent the moving body 12, even if it is a flying object, from coming into contact with the hanging member 16 and tilting at the start of flight.

10: Space 12: Mobile body 14: Linear member 16: Hanging member 18: Linear member direction change section 19: Hanging member string 26: Downward movement suppression member 31: Ring for linear member 32: Cylinder for hanging member string 33: Reinforcement material 81: Planar solid 82: Nut 83: Bolt 90: Fixing device 92: Direction change section hanging string 95: Ground monitor 96: Downward movement suppression member 97: In-pipe information acquisition member 101: Antenna 102: Camera 103: Lighting

Claims (10)

A device for suppressing wear of a linear member, comprising:
A linear member that is suspended from an entrance of the space into a lower space of the space and is connected to a moving body that moves laterally in the lower space;
a hanging member that hangs down from an entrance of the space into the lower space;
a direction changing member that engages with the linear member and the hanging member, maintains the linear member and the hanging member at a predetermined distance, and changes the orientation of the linear member with respect to the hanging member in accordance with the movement of a moving body, thereby suppressing wear of the linear member connected to the moving body,
The direction changing member is
The linear member and the hanging member have a ring passing therethrough.
Loss control device. A device for suppressing wear of a linear member, comprising:
A linear member that is suspended from an entrance of the space into a lower space of the space and is connected to a moving body that moves laterally in the lower space;
a hanging member that hangs down from an entrance of the space into the lower space;
a direction changing member that engages with the linear member and the hanging member, maintains the linear member and the hanging member at a predetermined distance, and changes the orientation of the linear member with respect to the hanging member in accordance with the movement of a moving body, thereby suppressing wear of the linear member connected to the moving body,
The direction changing member is
a first ring through which the linear member passes;
a second ring through which the depending member passes;
and a joint member that joins the first ring and the second ring.
Loss control device. The wear suppression device according to any one of claims 1 to 2 ,
A wear and tear prevention device comprising a direction change portion hanging string connected to the direction change member and capable of lowering and lifting the direction change member. The wear suppression device according to any one of claims 1 to 2 ,
The hanging member is
A loss control device equipped with a weight. The wear suppression device according to any one of claims 1 to 2 ,
The direction changing member is
The structure can be lowered downward along the hanging member,
A wear and tear prevention device equipped with a downward movement prevention member that prevents the direction-changing member from moving downward beyond a predetermined position. The wear suppression device according to any one of claims 1 to 2 ,
A wear and tear prevention device comprising a fixing device for fixing at least one of the linear member and the hanging member so that the extension length of the linear member or the hanging member does not increase. The wear suppression device according to any one of claims 1 to 2 ,
The linear member is
A loss control device including at least one of a retrieval string, a power line, a signal line, and a fluid pipe. 7. The wear and tear suppression device according to claim 6 ,
a pipe information acquisition member having one end fixed to the fixing device and suspended from an entrance of the space into the lower space,
The pipe information acquisition member includes:
An antenna for transmitting and receiving radio waves to and from a mobile object;
Lighting that illuminates the direction of the moving object;
A camera that captures an image in a direction including a moving object.
Loss control device. A monitoring system having a wear and tear control device,
a moving body that is suspended from an entrance of the space into a space below the space, moves laterally in the space below, and has a camera that captures an image of the space below;
A linear member connected to the moving body;
a hanging member that hangs down from an entrance of the space into the lower space;
a direction changing member that engages with the linear member and the hanging member, maintains the linear member and the hanging member at a predetermined distance, and changes the orientation of the linear member with respect to the hanging member in accordance with the movement of the moving body, thereby suppressing wear of the linear member connected to the moving body,
The direction changing member is
A surveillance system having a ring through which the linear member and the depending member pass . 10. The monitoring system of claim 9 ,
The moving body is at least one of an aircraft, a water surface floating body, and a vehicle-type running body.
Surveillance system.

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