JPS6242230B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for connecting a refrigerated vehicle and a refrigerated warehouse to transfer frozen cargo from a refrigerated warehouse to a refrigerated compartment of a refrigerated vehicle or from a refrigerated compartment to a refrigerated warehouse. It is something.

When loading and unloading frozen goods between a cold storage warehouse and a refrigerated truck, it is important to prevent the cold air from escaping in each refrigerated space of the cold storage warehouse and refrigerated truck. This is preferable in terms of space temperature management and energy saving. However, in the past, as shown in FIG. 1, the door 3 that closes the opening on the back side of the freezer compartment 2 of the freezer car 1 is of the outward-opening type, and therefore, the door 3 is opened before entering the freezer warehouse 5. If the freezer compartment 2 of the freezer truck 1 is already cooled, this cold air will escape and the temperature will rise.
Furthermore, on the side of the freezer warehouse 5, a cushion material 7 is placed around the opening where the door 6 is provided, so that the distance between the opening on the back side of the freezer compartment 2 of the freezer car and the opening can be shortened. Since the door 3 of the freezer compartment 2 is of an outward-opening type, the entire circumference of the rear opening of the freezer compartment 2 comes into contact with the cushion material 7 due to the existence of the door 3 and the hinge 13 supporting the door 3. I can't do it,
Furthermore, even if the entire circumference of the back opening of the freezer compartment 2 can be brought into contact with the cushion material 7, the inside of the freezer compartment 2 has already been exposed to the atmosphere before this contact occurs, so the inside of the freezer compartment 2 is exposed to the atmosphere. There are 2 freezer compartments inside 5.
This will allow the hot air inside to flow in. Furthermore, the refrigerated vehicle 1 is usually provided with a lift plate 4 on the back for loading and unloading the cargo. However, the conventional elevating plate 4 could not be lowered unless its upper end was tilted backwards to bring it into a horizontal state. Alternatively, in order to move the freezer truck 1 as close to the freezer warehouse 5 as possible, a space 14 is provided below the opening of the freezer warehouse 5 to accommodate the elevator plate 4 in the lowered state, as shown in FIG. I had to leave it there.

The present invention has been developed in view of the above, and its first purpose is to communicate the refrigerated space in the refrigerated compartment of a refrigerated vehicle and the refrigerated space in a refrigerated warehouse without exposing it to outside air. Another objective is to provide a method for connecting each refrigerated space between a refrigerated vehicle and a refrigerated warehouse, which is capable of connecting a refrigerated vehicle and a refrigerated warehouse with an elevating plate. To provide a refrigerating space connection device between a refrigerating vehicle and a refrigerated warehouse, which can connect the refrigerating vehicle to a refrigerated warehouse in a state where outside air is cut off.

The present invention will be explained in detail below based on examples. In FIG. 2 and the following figures, reference numeral 1 denotes a refrigerating vehicle, and the refrigerating chamber 2 thereof has an opening on the back surface that is opened and closed by an inward-opening door 3. In FIG. Further, the four circumferential back surfaces of this opening are arranged to be on the same plane. On the other hand, the cold storage warehouse 5 is equipped with a door 6 that similarly opens inward at its opening, and as shown in FIG. A cushion member 7 made of wood is attached, and in particular, its upper side 8 is vertically movable.

Therefore, when loading cargo in the freezer warehouse 5 into the freezer compartment 2 of the freezer truck 1, the freezer truck 1 is loaded with the door 3 of the freezer compartment 2 and the door 6 of the freezer warehouse 5 closed. The four peripheries of the rear surface of the freezer compartment 2, which is a flat surface at the rear end, are brought into contact with a cushion material 7 disposed around the entire opening of the freezer warehouse 5, thereby shielding the space between the doors 3 and 6 from the outside air. After this, each of the inward-opening doors 3 and 6 is opened to connect the freezing compartment 2 and the freezing space of the freezer warehouse 5 to each other. The reason why the upper side 8 of the cushion material 7 is vertically movable is to match the height of the freezer compartment 2 installed as a special feature in the freezer car 1. In addition, in the illustrated example, an inward-opening door 3,
6 is a roll-up type, but it may be of other types such as a sliding door type. However, considering the effective use of the internal space of the freezer compartment 2 of the freezer car 1, a roll-up type is most preferable.

Next, the refrigerating vehicle 1 equipped with the elevating plate 4 will be explained. In this case, as shown in FIG. 4, an opening frame 10 is provided that surrounds the top and both sides of the back opening of the freezer compartment 2. Then, the sliding unit 15 is housed within the side frame 11 of the opening frame 10. On the other hand, a drive unit 16 is housed on the floor or ceiling. First, drive unit 1
6, as shown in FIG. 5, both inner surfaces of a rectangular frame 35 are rail portions 36, and a hydraulic cylinder 31 is installed inside this frame 35 via a mounting plate 37. is arranged and fixed, and a movable plate 33 fixed to the tip of a piston rod 32 of a hydraulic cylinder 31 is provided with wheels 34 that run on both rails 36. The movable plate 33 is moved within the frame 35 by the operation of the hydraulic cylinder 31. One end of a pair of wire ropes 39 is connected to the movable plate 33 via turnbuckles 38, and the wire ropes 39 are connected to pulleys 41,
The side frame 11 of the opening frame 10 via 42, 43, 44
It is connected to the upper end of each vertically movable sliding unit 15 housed inside. Only one of the sliding units 15 is shown in FIG.

Now, the sliding unit 15 has a pair of connecting plates 17,
17, a wide support plate 18 disposed between both connecting plates 17, 17, and a frame member 2 fixed to the support plate 18.
3 and 24, and the side frame 1 of the opening frame 10
The wheels 25, 25 rolling inside the support plate 1
It is attached to 8. Both connecting plates 17, 17 are fixed between their upper ends via a spacer 26, the wire rope 39 is connected to the upper ends, and a connecting pin 19 connecting both connecting plates 17, 17 is connected to the support plate 18. One end of the shaft pin 27, which is fixed to the support plate 18 and supports the upper wheel 25, is located in the vertically long hole 28 provided in one of the connecting plates 17. are doing. That is, the connecting plates 17, 17 and the support plate 18 are not fixed to each other, and the connecting plates 17, 17 can be moved up and down relative to the support plate 18 within a small range in which the connecting pin 19 can move within the elongated hole 20. It is designed to be able to slide freely.

The elevating plate 4 has its base end rotatably supported by the lower end of the support plate 18, and the frame body 60
and surface plates 61, 61, and the support plate 18
A rotary rod 30 having one end shaft portion 46 rotatably connected to the lower end thereof and the other end fixed to the side surface of the elevating plate 4.
A shaft 45 on the side surface of the proximal end of the elevating plate 4 is inserted through the shaft 46 , and one end of a torsion bar 40 passing through the proximal end is fixed to the shaft 46 . The other end of the torsion bar 40 is connected via a shaft portion 48 to the lower end of a support plate 18 disposed on the other side frame 11, with its rotation range being restricted. 63 is a rotating plate attached to the tip of the elevating plate 4 with a hinge 49. The rotating rod 30 has a long hole 47 in its longitudinal direction, and a link 50 that can be expanded and contracted within a minute range.
A pin 51 provided at the lower end is inserted into the elongated hole 47, and the upper end of the link 50 is a lever having one end pivoted by a shaft pin 29 provided on the support plate 18 and supporting the wheel 25 below. 53, and the lever 53 and one of the connecting plates 17 are further connected by a link 54. In the figure, 65 has one end connected to the frame material 23.
A telescopic rod 56 is slidable along a vertically elongated hole 55 provided in the vertically long hole 55 and has the other end connected to the side surface of the lifting plate 4. It is a lock lever. Also 57
59 is a receiving material that receives on its upper surface a bearing material 58 disposed at one end of the movable side, which is a connection part with the frame material 23 of the telescoping rod 65, and is provided at the lower end of the connecting plate 17.
7 and the frame member 24.

Therefore, FIGS. 6a and 7a show the upright state when the elevating plate 4 is pulled up, and at this time, both connecting plates 17, 17 are in the upward position relative to the support plate 18. There is also a telescopic rod 6
5 has one end of its movable side positioned at the upper end of the elongated hole 55 of the frame member 23 in a contracted state. If the elevating plate 4 is tilted backward from this state, the telescopic rod 65 will extend until it reaches its limit, and the connecting plate 17 will be in a position where the bearing material 58 at one end of the movable side has moved upward relative to the support plate 18. It comes into contact with the upper surface of the receiving material 57. At this time, the rotating rod 30 also rotates together with the lifting plate 4, and the link 50 is extended to its full extension and contraction range, so that the lifting plate 4
remains horizontal. In this state, the hydraulic cylinder 31 is operated to move the piston rod 3.
2 is pulled in and the wire rope 39 is let out from the drive unit 16, the support plate 18 as well as the connecting plate 17 is lowered while being supported by the connecting pin 19. That is, the elevating plate 4 descends while maintaining a horizontal state. At this time, if the road surface is approximately level, the lifting plate 4 will also touch the ground in a horizontal state, but if the road surface is inclined due to a water slope, the support plate 18
Even if the base end of the lift plate 4 supported at the lower end touches the ground, if there is still a space between the tip of the lift plate 4 and the road surface, the wire rope 39 is let out to support the support plate 18. Both the connecting plates 17, 17 are lowered, and the tip of the elevating plate 4 is rotated downward by its own weight via the links 50, 54, the lever 53, and the rotary rod 30. At this time, the receiving material 57 is also lowered to lower the position of one end of the movable side of the telescopic rod 65, so that no unreasonable load is applied to the telescopic rod 65. The tip part rotates downward and the elevating plate 4 is moved as shown in Fig. 7c.
As shown in FIG. 2, the tip of the lift plate 4 can be brought into contact with the ground despite the slope of the road surface.

When the lift plate 4, which is tilted and in contact with the ground, is raised by the drive unit 16, only the connecting plates 17, 17 move upward relative to the support plate 18, and the links 50, 54, the lever 53, the rotating rod 30, As the receiving material 57 rises, the extensible rod 65 has one end that can be pulled up, and the tip of the elevating plate 4 rotates upward to bring the elevating plate 4 into a horizontal state. After this, connecting plate 1
Since the support plate 18 also moves upward together with 7 and 17, the elevating plate 4 also rises while maintaining its horizontal state.

In addition, in this case, the lower half of the rear opening of the freezer compartment 2, which is covered by standing up, can be opened by lowering the lifting plate 4 while it is in the upright state. Here, the elevating plate 4 in the upright state is the frame 1 on both sides of the opening frame 10.
1 and 11, and as shown in FIG.
It is flush with the back of the. Therefore, when connecting to the frozen warehouse 5 as described above, the lift plate 4 is lowered in the upright state, and the refrigerator truck 1 is moved backward in this state to remove the cushion material all around the opening of the frozen warehouse 5. It is sufficient if the opening frame 10 and the upper part of the elevating plate 4 are brought into contact with each other. And after this, both doors 3 and 6
By opening the container, frozen items can be transferred without being exposed to high temperature outside air.

Note that the capacity of the refrigerators in the freezer warehouse 5 and the freezer compartment 2 of the freezer car 1 is much greater on the freezer warehouse 5 side. Therefore, when transferring cargo in the freezer compartment 5 to the freezer compartment 2 of the freezer truck 1, if the interior of the freezer compartment 2 has not been cooled in advance, the door 3 of the freezer compartment 2 of the freezer truck 1 must be opened before moving the cargo into the freezer compartment 5. 5, it is the same as opening door 3 after connection, so there is no particular problem. In this case, in order to cool the space inside the freezer compartment 2 with the cold air inside the freezer warehouse 5,
The burden on the low-capacity refrigerator of the refrigerator truck 1 can be reduced.

As described above, in the specific invention, the periphery of the back opening of the freezer compartment of the freezer car is brought into contact with the non-ventilated cushion material placed around the outdoor opening frame of the freezer warehouse, thereby creating a space between the freezer compartment and the freezer warehouse. This is because the space in the freezer is isolated from the outside air, and then at least the door of the freezer room, which opens inward between the freezer room and the freezer warehouse, is opened to connect the freezer spaces between the freezer room and the freezer warehouse. , the cold air in each refrigerated space hardly ever comes into contact with the outside air, and the cold air does not escape.Therefore, there is almost no change in the temperature given to the refrigerated cargo, and the temperature in each refrigerated space is It is easy to manage, and the load on the refrigerator is small.Furthermore, in the case of the combined invention, although the refrigerator truck is equipped with an elevating plate on the back for loading and unloading cargo, The periphery of the back opening of the freezer compartment can be brought into contact with the cushion material placed around the outdoor surface of the opening of the freezer compartment, and the door of the freezer compartment can be opened inward, making it possible to connect the freezer car and the freezer warehouse. It is a device that can isolate the space between the freezers from the outside air, allows cargo to be transferred between the freezer warehouse and the freezer compartment of a freezer car at a temperature below a specified temperature, and can be lowered while standing. The upper rear surface of the raised and lowered lifting plate is flush with the back of the opening frame that surrounds the top and both sides of the back opening of the freezer compartment, so that the raised and lowered plate does not get in the way of the cushion material or its surroundings. There is no need to provide a space for the cushion material, and the outdoor surface of the cushion material can be left as a flat surface, and for this reason, the opening frame and the upper part of the elevating plate can be reliably brought into contact with the cushion material. It is something.

[Brief explanation of the drawing]

Fig. 1 is a cutaway side view of a conventional example, Fig. 2 is a cutaway side view of an embodiment of the present invention, Fig. 3 is a perspective view of the opening of a refrigerated warehouse, and Figs. 4 and 5 are the back of a refrigerated vehicle. 6a and b are partial perspective views of the same as above,
Figures 7a, b, and c and Figure 8 are side views of the same as above, in which 1 is a refrigerated vehicle, 2 is a freezer compartment, 3 is a door, 4 is a lift plate, 5 is a cold storage warehouse, 6 is a door, and 7 indicates the cushion material.

Claims (1)

[Scope of Claims] 1. A non-ventilated structure in which the periphery of the opening with the inward-opening door on the back of the freezer compartment of the refrigerated vehicle is arranged around the outdoor surface of the opening frame with the inward-opening door of the frozen warehouse. The space between the freezer compartment of the freezer car and the freezer warehouse is insulated from the outside air by contacting the cushion material, and then at least the door of the freezer compartment of the freezer car and the door of the freezer warehouse is closed. A method for connecting a refrigerated vehicle and a refrigerated warehouse to each refrigerated space, characterized in that the refrigerated space in the refrigerated compartment and the refrigerated space in the refrigerated warehouse are connected by opening the refrigerated space. 2. An opening frame is provided at the back of the freezer compartment of the refrigerated vehicle to surround the upper part and both sides of the back opening, and the lower end is connected to a vertically movable sliding unit housed within the opening frame, so that it can freely move up and down while standing upright. At the same time, the rear surface of the upper end of the lifting plate whose upper end can freely rotate backwards is formed on the same plane as the rear surface of the opening frame, and an inward-opening door that closes the rear opening of the freezer compartment is provided in front of this surface. arranged,
A cushion material made of non-ventilated material is arranged around the opening where the inward-swinging door of the cold storage warehouse is provided, and is able to come into contact with the opening frame at the back of the freezer compartment of the freezer car and the upper end of the lowered lifting plate. A refrigerating space connection device between a refrigerating truck and a refrigerating warehouse, characterized by: