Loading platform lifting device

Abstract

To provide a loading platform lifting device which can prevent a sub plate from being supported in a floating state with respect to a main plate.SOLUTION: A loading platform lifting device 1 comprises: a slide rail 4 which is fixed to a cargo vehicle and extends in the horizontal direction; a loading platform 19 which has a main plate 191 and a sub plate 192, and which can select an unfolded state in which the main plate and the sub plate are unfolded side by side in the extension direction of the slide rail so as to allow a cargo to be placed thereon, and a folded state in which the sub plate is folded so as to be placed on the main plate; lifting means 18 which supports the loading platform in an ascending / descending manner; and a loading platform support part 25 which has a support upper surface for supporting the sub plate on the loading platform in the folded state. The loading platform and the loading platform support part can move in the extension direction and the loading platform support part is configured such that the height of the support upper surface can be adjusted.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cargo receiving platform lift that is provided so as to be storable under a cargo box in a cargo vehicle having a cargo box. This relates to landing gear. [Background technology]

[0002] Conventionally, a loading platform lifting device as described in Patent Document 1 is known. The load receiving platform has a main plate and a sub-plate. The load receiving platform is mounted on the main plate. The sub-plate is folded and stored in the storage compartment. The loading platform lifting device is also mounted on the slide rail. The support plate is attached to the vehicle and slides in the fore-and-aft direction by a cylinder, and the support plate protrudes backward. A roller support plate is attached so that the roller can be rotated around the rear end of the roller support plate. The guide roller supports the tip of the sub-plate when stored. The sensor is provided in a position where it can be easily mounted.

[0003] According to the load-receiving platform lifting and lowering device having the above-mentioned configuration, when the load-receiving platform is stored, the main plate The tip of the sub-plate folded upward can be placed on the guide roller. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-64447 A Summary of the Invention [Problem to be solved by the invention]

[0005] The guide roller as described in Patent Document 1 is attached to a roller support plate. If the height of the guide roller is not appropriate, the tip of the subplate is supported by the guide roller. In this case, the subplate may end up being supported in a floating state relative to the main plate. In this way, the subplate cannot be stored properly if it is floating relative to the main plate. There are cases where this is the case.

[0006] Therefore, in the present invention, the sub-plate is supported in a floating state with respect to the main plate. The object of the present invention is to provide a loading platform lifting and lowering device that can suppress the above-mentioned problems. [Means for solving the problem]

[0007] The load-receiving platform lifting device of the present invention can be stored under a freight vehicle and can be lifted with the load on it. A platform lifting device that can be lowered is fixed to the freight vehicle and has a horizontally extending slide. A main plate and a sub-plate are provided. The plates are extended in the extending direction of the slide rail so that luggage can be placed on them. The sub-plate is folded so that it is placed on the main plate. a load receiving platform capable of selecting a folded state or a folded state; and a lifting means for supporting and lifting the load receiving platform. A support upper surface for supporting the sub-plate in the folded state of the load receiving platform is provided. and a load receiving platform support portion, the load receiving platform and the load receiving platform support portion being movable in the extension direction. The loading platform support portion is configured so that the height of the support upper surface is adjustable.

[0008] According to this configuration, the height of the upper surface of the load receiving platform support part can be adjusted, The height at which the main plate supports the tip of the sub-plate in the folded state can be adjusted. This can prevent the sub-plate from floating relative to the rate.

[0009] The load receiving platform support portion is a support against which the sub-plate in the folded state abuts. The adjustment portion includes a pad portion having an upper surface and an adjustment portion provided below the pad portion. The support portion includes a plurality of plate-like members, and the plate-like members are used to adjust the height of the support upper surface. It is also possible.

[0010] According to this configuration, the height of the support upper surface of the pad portion can be adjusted by changing the number of plate-like members. This allows for easy adjustment of the pad height.

[0011] The main plate and the sub-plate have base ends and and a tip end, and the sub-plate is adapted to move between the folded state and the unfolded state. and a direction substantially perpendicular to the extension direction in the horizontal direction is set as a center with respect to the main plate. The base end of the sub-plate is connected to the tip end of the main plate so as to be rotatable relative to the base end of the sub-plate. The lifting means is connected to the main plate and lifts and lowers the main plate. The pad portion supports the subplate in the folded state. A horizontal portion extending in a horizontal direction and a sub-plate in a midway state of the rotation of the sub-plate and a support portion for supporting the support, the support portion having a base end facing the extension direction. a base end portion disposed closer to the horizontal portion and a tip end portion disposed farther from the horizontal portion; and a tip end of the leaning portion is positioned lower than a base end of the leaning portion. It may also be configured to slope downward.

[0012] According to this configuration, the sub-plate is in a state in the middle of rotation between the folded state and the unfolded state. The plate can be supported by leaning it against a support.

[0013] The adjustment section is configured to be disposed below the horizontal section and to support the horizontal section. The leaning portion is not supported by the adjustment portion, and the tip portion is a free end. It is also possible to configure the sub-plate so that it bends when it is placed upright.

[0014] According to this configuration, the support portion can bend when the sub-plate is supported. Therefore, the part that is supported can bend and absorb the shock that occurs when the table is supported. Effect of the Invention

[0015] According to the present invention, the sub-plate is supported in a floating state with respect to the main plate. It is possible to obtain a loading platform lifting and lowering device that can suppress this. [Brief description of the drawings]

[0016] [Figure 1] 1 is a side view showing a state in which a loading platform lifting device according to an embodiment of the present invention is attached to a freight vehicle. [Diagram 2] FIG. [Diagram 3] FIG. 4 is a side view showing the storage state of the loading platform lifting device. [Figure 4] 13 is a side view showing the loading platform lifting device with a movable part slid therein. FIG. [Diagram 5] FIG. 4 is a side view showing a state in which a part of the loading platform lifting device is grounded. [Figure 6] FIG. 2 is a side view showing the loading platform of the loading platform lifting device in an expanded state, in which the loading platform is shown in a solid line in a state where it is on the ground, and the loading platform is shown in a raised state in a two-dot chain line. [Figure 7] 4 is a side view showing a load-receiving-table support portion of the load-receiving-table lifting device. FIG. [Figure 8]FIG. [Figure 9] FIG. 11 is a side view showing a state in which a loading platform lifting device according to another embodiment of the present invention is attached to a freight vehicle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] A loading platform lifting and lowering device 1 according to an embodiment of the present invention will be described. The rear direction and the vehicle width direction are based on the direction of the cargo vehicle V on which the loading platform lifting device 1 is installed. explain.

[0018] As shown in FIG. 1, a loading platform lifting device 1 according to an embodiment of the present invention is provided for a cargo vehicle V. The loading compartment B is located at the rear lower part of the loading compartment B. The loading compartment B is a closed space when the loading compartment B is closed. The present embodiment may be a box-like structure, or may be, for example, a loading platform whose upper portion is always open. FIG. 2 is a perspective view of the loading platform lifting device 1, and FIG. 3 is a side view of the loading platform lifting device 1. The state in which the loading platform lifting device 1 is stored under the rear of the loading box B in both V, i.e., the cargo vehicle V shows the movable state. On the other hand, Figs. 4 to 6 show the movable side of the load-receiving platform lifting device 1. The support member 13 is slid from the slide front end position (forward position) of FIG. 3 toward the rear of the packing box B. After the slide reaches a predetermined rear end position (rear position), the load receiving platform 19 is deployed and raised / lowered. FIG. 1 is a side view showing a state in which the vehicle is used to load and unload cargo. A cargo box B is mounted on the body 2 of the vehicle V. A so-called underfloor rack is provided at the lower rear end of the body 2. A storage-type loading platform lifting device 1 is stored.

[0019] 4 to 6, a pair of fixed side supports are provided on the left and right sides of the loading platform lifting device 1 in the vehicle width direction. The support members 3 each include a slide rail 4 extending horizontally in the front-rear direction of the vehicle, and the slide rail 4 is attached to the vehicle body 2. A plurality of (three in this embodiment) mounting brackets 5 for mounting the vehicle on the vehicle body and a pair of left and right slides are provided. The connecting member 6 is made of a square pipe and connects the front ends of the drain rails 4 together. The slide rail 4 and each mounting bracket 5 are fastened together with bolts and nuts 7 . A support plate 8 is attached to the slide rail 4 so as to be slidable in the front-rear direction of the vehicle.

[0020] The pair of left and right support plates 8 are arranged in a vehicle width direction (a direction perpendicular to the extending direction of the slide rail 4). A cross member 9 made of a flat rectangular pipe is inserted through the casing, and these are welded together. On the outer side of the support plate 8 in the vehicle width direction, support brackets 10 and 11 are attached to the cross member These support brackets 10 and 11 are also provided in pairs on the left and right. There are.

[0021] The lower parts of the pair of left and right support plates 8 are connected by a connecting member 12 made of a channel material. (See FIG. 2.) A support plate 8, a cross member 9, support brackets 10, 11 and a connecting The member 12 is a movable support member 1 that is slidable in the vehicle front-rear direction relative to the fixed support member 3. It consists of 3.

[0022] An auxiliary link 14 is attached to the support bracket 10 so as to be rotatable within a certain range. The upper arm 15 and the lift cylinder (lifting drive device) 16 are rotated by the auxiliary link 14. The tip of the lift cylinder 16 is connected to a predetermined position of the upper arm 15. The extension and contraction action applies torque to the upper arm 15. The lower arm 17 is rotatably attached to the lift cylinder 16. It consists of a moving hydraulic cylinder.

[0023] The upper arm 15 and the lower arm 17 are parallel to each other. The parallel link is a triangle, and the tip of the link is raised by the extension and contraction of the lift cylinder 16. The auxiliary link 14, the upper arm 15, the lift cylinder 16 and the lower arm 17 are provided in pairs on the left and right sides and constitute an arm-type lifting means 18 for lifting and lowering the load receiving platform 19. .

[0024] The load receiving platform 19 is a main load receiving platform that is horizontally attached to the ends of the upper arm 15 and the lower arm 17. A plate 191 (base receiving platform) 191 and a base receiving platform 191 connected thereto in a foldable and unfoldable manner. Subplate 192 (front load receiving platform) 192, main plate 191 and subplate 19 2. The connecting portion 193 has one end connected to the main plate 191 and the other end of the same is connected to the base end of the sub-plate 192. The sub-plate 19 in this embodiment has a hinge 193a rotatably connected to the 2 is longer in the front-rear direction than the main plate 191. The sub-plate 192 is rotated relative to the main plate 191 at the center, and the main plate 1 When the sub-plate 192 is folded so that it overlaps with the top of the 91, The end portion of the main plate 191 extends forward beyond the base end portion of the main plate 191. In this embodiment, the subplate 192 is made of a metal such as an aluminum extrusion material. In this embodiment, the main plate 191 and the sub-plate 192 are each a single plate-shaped body. It is.

[0025] With the above-mentioned configuration, as shown in Figs. 1 to 3, the support 191 is placed on the main plate 191 during storage. The subplate 192 is in a folded state. Also, as shown in FIG. When in use, the sub-plate 192 is deployed, and the main plate 1 In the deployed state, the load receiving surface 19a is formed so that it continues from the upper surface of the sub-plate 192 to the upper surface of the sub-plate 191. On this receiving surface 19a, the cargo to be loaded and unloaded from the cargo box B is placed. In the stored state, the protrusion 1931 provided on the sub-plate 192 is fixed to the fixed side support member 3. The connector 3 is fitted into a fitted portion 3a provided at the rear end of the connector 3.

[0026] When the lift cylinder 16 is driven to extend and retract with the load receiving surface 19a configured in this manner, The cargo receiving platform 19 is arranged so that the floor surface (not shown) of the cargo box B and the cargo receiving surface 19a are at substantially the same height. Between the raised position (upper position in Figure 6) and the grounded position (lower position in Figure 6) This allows the loading platform 19 to be raised and lowered behind the loading box B. This allows cargo to be loaded and unloaded from the cargo box B of the cargo vehicle V.

[0027] Next, the loading platform lifting device 1 is slid (moved back and forth) between the front position and the rear position. The slide cylinder (front-rear drive device) 22 will be described. FIG. 2 shows the slide cylinder 22. 4 to 6 correspond to the state in which the slide cylinder 22 is fully extended. It corresponds to the state.

[0028] The slide cylinder 22 is disposed between the left and right slide rails 4 in the vehicle width direction. It is composed of a pair of left and right cylinders 23. The cylinders 23 are, for example, double-acting hydraulic cylinders. The cylinder bodies 24 of the left and right cylinders 23 are arranged such that their front and rear ends are in contact with each other. The plates are stacked in the reverse orientation and are integrally connected at the front and rear positions. The cylinder body 24 has a front end connected to the connecting member 6 and a rear end connected to the cross member 9. Therefore, the extension of the slide cylinder 22 is By the long operation, the cylinder mounting member 21, the cross member 9, and the cross member 9 are connected The support plate 8 moves rearward away from the connecting member 6 .

[0029] The cylinder mounting member 21 is a member extending in the front-rear direction and connected at its front end to the cross member 9. In addition, the cylinder mounting member 21 is supported at its midpoint in the front-rear direction by the connecting member 12. That is, the cylinder mounting member 21 is supported by the cross member 9 and the connecting member 12. Specifically, as shown in FIG. 7 and FIG. 8, the cylinder attachment The mounting member 21 has a mounting base 211 extending in the front-rear direction and a shaft protruding upward from the mounting base 211. The cylinder mounting member 21 of this embodiment has a rear end The loading platform 21 is provided with a loading platform support mounting portion 21B to which a loading platform support portion 25, which will be described later, can be attached.

[0030] The cylinder attachment portion 21A is a portion to which the rear end portion of the cylinder can be attached. The cylinder mounting portion 21A is composed of a pair of protrusions 212 protruding upward from a mounting base 211. The cylinder mounting portion 21A is formed at a midpoint in the front-rear direction of the mounting base portion 211. Specifically, the cylinder mounting portion 21A is provided between a pair of protrusions 212. The rear end of the cylinder 22 (specifically, one of the cylinders 23) is disposed on the protrusion 212. The cylinder 23 is fixed in place by inserting a bolt through the hole and fastening it with a nut. However, the configuration of the cylinder mounting portion 21A is not limited to this configuration, and the rear end of the cylinder 23 is fixed. Various configurable configurations are possible.

[0031] The load-receiving platform support attachment portion 21B is a portion to which the load-receiving platform support portion 25 can be attached. The load receiving platform support mounting portion 21B in this embodiment is provided at the rear end portion of the cylinder mounting member 21. In other words, the loading platform support mounting portion 21B is a plate-shaped mounting plate portion 21 to which the loading platform support portion 25 is attached. 3, and a reinforcing portion 214 provided below the mounting plate portion 213 and reinforcing the mounting plate portion 213. The mounting plate portion 213 is a plate-shaped portion extending rearward from the cylinder mounting portion 21A. In this embodiment, the mounting plate portion 213 is formed with a hole through which a bolt serving as a fastener 28 can be inserted. It is being done.

[0032] The load receiving platform support portion 25 is a portion of the load receiving platform 19 that can support the sub-plate 192. Specifically, the load receiving platform support portion 25 can support the tip portion of the sub-plate 192. The base support portion 25 includes a pad portion 26 that contacts the sub-plate 192 and an upper surface ( The support upper surface 261a) is provided with an adjustment portion 27 that can adjust the height of the support upper surface 261a). 5 is attached to the rear end of the cylinder mounting member 21. In the rear direction, it is provided behind the slide cylinder 22. 5 is provided so as to be movable in the front-rear direction by the operation of the slide cylinder 22. The mounting position of the load receiving platform support portion 25 is not limited to the rear end portion of the cylinder mounting member 21. It can be attached to any position, such as the rear of the support plate 8. In addition, the load receiving platform support part 25 is 2, the horizontal portion 261, the adjustment portion 27, and the fastener 28 for fixing the mounting plate portion 213. The fasteners 28 in this embodiment are bolts and nuts.

[0033] The pad portion 26 abuts against the tip portion of the sub-plate 192 from below, The pad portion 26 is a plate-shaped member with a bent midway portion in the front-rear direction. Specifically, the pad portion 26 includes a horizontal portion 261 extending in the horizontal direction and a horizontal portion 26 The pad portion 26 is provided with a support portion 262 extending rearward from the rear end portion of the sub-substrate 26. The tip of the plate 192 is made of a material that is softer than the tip of the plate 192. In this embodiment, the tip of the plate 192 is made of resin. be.

[0034] The horizontal portion 261 is a plate-shaped portion that extends substantially horizontally. The base 19 is capable of supporting the sub-plate 192 by contacting the lower surface of the sub-plate 192. Specifically, the horizontal portion 261 is a support upper surface 26 that can abut against the lower surface of the sub-plate 192. 1a and a fixture attachment portion 2611 to which a fixture 28 can be attached. 1a is made of a material softer than the tip of the sub-plate 192. The fixing tool mounting part 2611 is made of resin. The fixing tool mounting part 2611 is made of resin. The fastener attachment portion 2611 is a hole through which a bolt can be inserted. When the nut is attached to the support upper surface 261a, the nut does not protrude upward from the support upper surface 261a. Specifically, the fastener attachment portion 2611 has a through hole 2611a through which a bolt is inserted. A recess that is provided on the radially outer side of the through hole 2611a and is capable of accommodating a nut screwed onto the bolt. In this manner, the fixing device 28 protrudes above the supporting upper surface 261a. Since the fixing device 28 and the sub-plate 192 are attached so as not to protrude, there is no interference between them. In addition, the rear end of the horizontal portion 261 is located behind the rear end of the loading platform support attachment portion 21B. Located on the side.

[0035] The leaning portion 262 is a plate-shaped portion extending rearward from the rear end of the horizontal portion 261. The leaning portion 262 is a plate-shaped portion that is inclined so that the rear side is positioned downward. Specifically, the front end of the leaning portion 262 is connected to the rear end of the horizontal portion 261, and the rear end That is, the leaning portion 262 is a plate-shaped portion having a free end. The end portion farther from the horizontal portion 261 (rear end portion) is the end portion closer to the horizontal portion 261 (front end portion). The support portion 262 is a downwardly inclined portion located below the sub-plate. It is made of a material that can bend when the load of T192 is applied. The leaning portion 262 in this embodiment is made of resin. The support surface 262a is continuous with the support upper surface 261a. The support surface 262a is flat. In this embodiment, the leaning portion 262 is integrally formed with the horizontal portion 261. There are.

[0036] The adjustment unit 27 is a portion capable of adjusting the height of the support upper surface 261a. 7 includes a plate-like member 271 provided between the pad portion 26 and the load-receiving platform support mounting portion 21B. In this embodiment, the adjustment unit 27 is made up of a plurality of (for example, three) plate-like members 271 of the same thickness stacked together. That is, the adjustment unit 27 of the present embodiment changes the number of the plate-like members 271. In this way, the height of the pad portion 26 (the upper support surface 261a) can be adjusted. Depending on the height of 61a, the plate-like member 271 may be a single piece.

[0037] The plate-shaped member 271 is a plate-shaped member that can be stacked vertically in multiple pieces. When the member 271 is attached below the horizontal portion 261, the rear end portion of the member 271 is longer than the rear end portion of the horizontal portion 261. The plate-shaped member 271 of this embodiment has a vertically extending A through hole 271a is formed through which a bolt serving as the fixing device 28 can be inserted. In the present embodiment, the plate-like member 271 has a length from the through hole 271a to the rear end portion of the horizontal portion 261. Therefore, the length of the support portion 26 is shorter than the length from the through hole 2611a to the rear end portion of the support portion 26. When the plate-like member 271 bends, the plate-like member 271 can be prevented from interfering with the supporting portion 262. The plate-like member 271 of this embodiment is made of an elastic body that can be compressed and restored in the vertical direction. Specifically, the plate member 271 of this embodiment is made of rubber. is longer than or equal to the length of the horizontal portion 261 in the vehicle width direction. This can reliably support the lower part of the portion 261.

[0038] The pad portion 26 and the adjustment portion 27 configured as above are fixed by a fixing device 28. Specifically, the pad portion 26 (horizontal portion 261) and the adjustment portion 27 (plate-shaped member 271) are formed The through holes 2611a and 271a are overlapped, a bolt is inserted into the overlapped through hole, and a nut is tightened. In this manner, the pad portion 26 and the adjustment portion 27 are fixed. 26, the adjustment portion 27, and the load receiving platform support mounting portion 21B are penetrated by a bolt. The support upper surface 261a is fixed with a nut. After the support upper surface 261a is fixed with the fixing tool 28, the height of the support upper surface 261a can be adjusted. If it is necessary to remove the fixing device 28, adjust the number of plate-like members 271, and then The fixture 28 is then attached again. In this manner, the fixture 28 can be attached to and detached from the load receiving platform support portion 25. Therefore, the height of the adjustment portion 27 is easily adjusted, and the height of the support upper surface 261a is easily adjusted. water.

[0039] According to the above-described loading platform lifting and lowering device 1, the height of the supporting upper surface 261a can be adjusted. The sub-plate 192 of the folded load-receiving platform 19 is raised relative to the main plate 191. This makes it possible to support the sub-plate 192 while suppressing bending.

[0040] As shown in FIG. 2, a load-receiving platform lifting device 1 (specifically, In particular, the lift cylinder 16 and the slide cylinder 22 are provided with a control device for controlling the operation of the lift cylinder 16 and the slide cylinder 22. The power unit 30 is attached to the other end of the cross member 9 in the longitudinal direction. In order to output an operation command for raising / lowering or sliding the loading platform 19 to the control device, A switch box 31 is attached.

[0041] With the above configuration, the folded load receiving platform 19 stored in the state shown in Figs. When the slide cylinder 22 is to be used, the slide cylinder 22 is slid backward by the extension operation. By this extension of the slide cylinder 22, the cylinder mounting member 2 1 and the lifting means 18 move to the rear position. The load receiving platform support portion 25 is attached to the cylinder mounting member 21, and is connected to the lifting means 18. The load receiving platform 19 connected to the load receiving platform 19 moves to the rear position. When moving from the forward position to the forward position, the load receiving platform 19 and the load receiving platform support portion 25 move simultaneously. The tip of the sub-plate 192 is in a folded state (supported by the supporting upper surface 261a). maintain the same state.

[0042] After the load receiving platform 19 has moved to the rear position, the lift cylinder 16 is actuated to lift the load receiving platform 19. From the folded state, the main plate 191 is lowered by the lifting means 18, and the sub-plate Specifically, the lift cylinder 16 is retracted. When the upper arm 15 and the lower arm 17 are contracted, the upper arm 15 and the lower arm 17 are rotated downward, and the main plate 191 At this time, the tip of the sub-plate 192 is supported by the load-receiving platform support portion 25. 5. Therefore, the sub-plate 192 rotates clockwise around the connecting portion 193 as shown in FIG. That is, the sub-plate 192 rotates in the downward direction as the main plate 191 descends. In the folded state in which it extends horizontally, the base end is positioned downward and the tip end is positioned upward. In addition, the tip of the sub-plate 192 is inclined so as to contact the upper support surface 261. From the state where it is resting on a, it moves rearward and becomes supported by the supporting slope 262a. In this manner, the sub-plate 192 is placed against the support portion 262. .

[0043] Next, raise the sub-plate 192 by hand and lay it horizontally behind the main plate 191. In this way, the load receiving platform 19 is horizontally deployed. In this state, the lift cylinder 16 is When the load receiving platform 19 is extended, it is raised to the upper position shown on the upper side of the load receiving platform 19 while the load receiving platform 19 is kept horizontal. Also, when the lift cylinder 16 is contracted from the raised position, The loading platform 19 can then be lowered to its original position.

[0044] In addition, if the lift cylinder 16 is further contracted after the lower arm 17 has landed, By the action of the auxiliary link 14, the load receiving platform 19 tilts so that its front end (rear end) is lowered. 6, the vehicle is moved along the ground as shown in the lower part of FIG. The cart (luggage) is moved from the rear of the luggage receiving platform 19 to the front, so that the cart is placed on the luggage receiving surface 19a. It can be easily loaded and unloaded.

[0045] To store the load receiving platform 19, the lower arm 17 must be placed on the ground and the load receiving platform 19 must be horizontal. The sub-plate 192 is raised and placed against the support portion 262. That is, the load-receiving platform 19 is unfolded. The open state is changed to the intermediate state. Next, the upper arm 15 and the lower arm 17 are raised. The sub-plate 192 is folded onto the main plate 191 by its own weight, and the loading platform 19 is folded. Then, the slide cylinder 22 is contracted to move the movable side support to the front position. The support member 13, the lifting means 18 and the load-receiving platform 19 are retracted to assume the stored state shown in Figs.

[0046] When the sub-plate 192 is placed against the support portion 262, the support portion 262 is bent. Therefore, the sub-plate 192 is raised and placed against the support portion 262. The impact caused when the plate member 2 is pulled can be absorbed by the bending of the support portion 262. Since the sub-plate 192 is a main plate 71, the main plate 71 is an elastic body that can be compressed and restored in the vertical direction. The plate-like member 271 can absorb the shock applied when it is folded onto the plate 191 by elastic deformation.

[0047] Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. It won't be done.

[0048] For example, the case where the loading platform 19 is deployed at the rear of the cargo vehicle has been described. In this case, the slide rail can be used to slide the device in the opposite direction. The rail is provided to extend in the vehicle width direction.

[0049] In addition, the loading platform support portion 25 is described as being provided behind the cylinder. For example, a member for attaching the load receiving platform support portion 25 to the support plate 8 may be used. and the load receiving platform support portion 25 may be attached to said member.

[0050] Further, although the case where one loading platform support portion 25 is provided has been described, the loading platform support portion 25 may be provided at intervals in the vehicle width direction. Two or more of the above may be provided.

[0051] In addition, the load receiving platform support portion 25 can adjust the height of the support upper surface 261a depending on the number of plate-like members 271. The above description is directed to a case where the adjustment is possible, but the present invention is not limited to such a configuration. The pad portion 26 can be attached at any height of the long hole, and the pad portion 26 (horizontal The height can be adjusted by adjusting the thickness of the part 261 or by other height-adjusting mechanisms. It may be possible.

[0052] Furthermore, the pad portion 26 is made of resin in the above description, but it is not limited to resin, and may be made of metal, etc. It may also be constructed from other materials.

[0053] In addition, the plate-like member 271 is made of an elastic material and absorbs the impact applied to the pad portion 26. However, the present invention is not limited to such a configuration, and any configuration that does not elastically deform when subjected to impact may be used. It can also be made of such materials.

[0054] Furthermore, in the case where the adjustment unit 27 is configured by stacking a plurality of plate-like members 271 having the same thickness, However, the plate-like members 271 having different thicknesses may be stacked on top of each other. By selecting one plate-shaped member 271 having an appropriate thickness from among several plate-shaped members 271, the thickness In addition, it may be possible to adjust whether or not to overlap one plate with another plate. By making it possible to select the thickness, it is possible to adjust the thickness.

[0055] In addition, the pad portion 26 is described as being in the form of a plate with a bent middle portion. The present invention is not limited to the above-mentioned configuration, and may be of various shapes, such as a circular arc shape whose upper surface extends in the direction of the slide rail. Various shapes can be adopted. In addition, when it is an arc shape, it is folded at the upper end of the arc. The tip of the sub-plate 192 in the folded state is supported, and the part rearward in the vehicle direction from the upper end is erected. The pad portion 26 supports the sub-plate 192 on which the support portion 26 is supported. In this case, the horizontal portion 261 may be formed in a substantially rectangular parallelepiped shape without the horizontal portion 261. The subplate 192 in the intermediate state is supported at its sides and outer edge.

[0056] Furthermore, the leaning portion 262 is a downwardly inclined member provided on the rear side of the horizontal portion 261. However, the present invention is not limited to this configuration. For example, as shown in FIG. It is configured as a cylindrical member with its axis in the vehicle width direction, which is provided at the rear end of the flat portion 261. In the case where the support portion 262 is cylindrical, the sub-plate 192 can be supported vertically. Regardless of the angle at which it is hung, the outer circumferential surface of the support portion 262 is reliably supported by the sub-plate 192. can be accessed.

[0057] In addition, the pad portion 26 and the adjustment portion 27 are fixed with bolts and nuts. However, the present invention is not limited to this configuration, and the fixing may be performed by other means such as adhesion.

[0058] Furthermore, the load receiving platform 19 and the load receiving platform support portion 25 are supported by the same slide cylinder 22. The above description is directed to a case where the slider moves forward and backward. However, the present invention is not limited to this configuration. Alternatively, the suspension may be configured so that it can move in the front-rear direction of the vehicle by means of a hand cylinder 22.

[0059] In addition, the sub-plate 192 is a single plate-like body in the above description, but it may be two or more plates. It is made up of a plate-like body and can be configured to be foldable and unfoldable using hinges, etc. In this configuration, the load receiving platform support portion 25 can be supported by the folded sub-plate 1. 92 in the vehicle direction. [Explanation of symbols]

[0060] 1...load-receiving platform lifting device, 2...vehicle body, 3...fixed-side support member, 4...slide rail, 5...mounting Bracket, 6·12...connecting member, 7...bolt and nut, 8...support plate, 9...cross member , 10·11... Support bracket, 13... Movable side support member, 14... Auxiliary link, 15... Upper arm arm, 16...lift cylinder, 17...lower arm, 18...lifting means, 19...load receiving platform, 191 ...main plate, 192...sub plate, 193...connection portion, 21...cylinder mounting member, 21A: Cylinder mounting portion, 21B: Load receiving platform support mounting portion, 211: Mounting base, 212: Protrusion portion, 213...mounting plate portion, 214...reinforcement portion, 22...slide cylinder, 23...cylinder, 2 4... cylinder body, 25... load-receiving platform support portion, 26... pad portion, 261... horizontal portion, 261a... Support upper surface, 262... leaning portion, 262a... support slope, 27... adjustment portion, 271... plate-shaped member , 28...fixture

Claims

1. This is a loading platform lifting device that can be stored under a freight vehicle and can be raised and lowered with cargo loaded. So, A slide rail fixed to the freight car and extending in a horizontal direction; A main plate and a sub-plate, the main plate and the sub-plate The slide rails are extended in a direction parallel to each other so that luggage can be carried. and a folding state in which the sub-plate is folded so as to rest on the main plate. A loading platform capable of selecting a loading status; A lifting means for supporting and lifting the loading platform; A load receiving platform having a support upper surface for supporting the sub-plate in the folded state. A pedestal support portion, The load receiving platform and the load receiving platform support portion are movable in the extension direction, The load receiving platform support section is a load receiving platform lifting device configured so that the height of the support upper surface is adjustable. 。

2. The loading platform support portion is a pad portion having the support upper surface against which the sub-plate in the folded state abuts; an adjustment portion provided below the pad portion, The adjustment unit includes a plurality of plate-like members, and adjusts the height of the support upper surface by using the plate-like members.

2. The platform lifting device according to claim 1, which is adjustable.

3. The main plate and the sub-plate have a base end and a tip end facing each other in the extension direction. Each department has The sub-plate is adapted to move between the folded state and the unfolded state in the horizontal direction. The main plate is rotatable about a direction substantially perpendicular to the extending direction. a base end portion of the sub-plate is connected to a tip end portion of the main plate, The lifting means is connected to the main plate and is capable of lifting and lowering the main plate. the law of nature, The pad portion is a horizontal portion extending in a horizontal direction so as to support the subplate in the folded state; 、 a support portion that supports the subplate in a midway state of the rotation of the subplate; Preparation, The leaning portion is a base end portion and a tip end portion which are opposed to each other in the extending direction, and is disposed on the horizontal portion. The base end portion is disposed closer to the support member than the tip end portion, and the tip end portion is disposed farther from the support member than the tip end portion. The present invention relates to a method for manufacturing a casing, comprising: The loading platform lifting device described above.

4. The adjustment portion is configured to be disposed below the horizontal portion and to support the horizontal portion, The leaning portion is not supported by the adjustment portion, and the tip portion is a free end. The load receiving device according to claim 3, wherein the sub-plate is configured to bend when it is placed against the load receiving device. Platform lifting device.

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