JP4966811B2 - Consignment - Google Patents

Description

  The present invention relates to a structure of a load receiving platform in a load receiving platform lifting / lowering device installed in a cargo vehicle.

  In many cases, the load receiving platform in the load receiving platform lifting / lowering device has a foldable structure in order to secure the size of the load receiving surface and to enable compact storage. Therefore, for example, the load receiving table is configured by a base end receiving table on the base end side and a tip receiving table on the front end side, and these are connected to each other by a connecting member (for example, Patent Documents). 1). Furthermore, the front part receiving platform is also foldable. The front load carrier when horizontally deployed is prevented from rotating by bringing a stopper bolt or other adjustment member into contact with the base load carrier, so that a desired posture (mainly horizontal) can be maintained. Yes.

JP 2004-136855 A (FIG. 1)

  However, in a state where the front part receiving platform is deployed, there may be a step between the base receiving platform and the front receiving platform due to the variation (inclination) of the posture of the connecting member that occurs within the range of manufacturing error (usually Is lower than that of the base cradle.) If there is such a step, it becomes an obstacle when moving the load or the cart with the load, and smooth movement becomes difficult. In order to eliminate the level difference, the height of the upper surface of the base load receiving side member that receives the connecting member from the bottom may be finely adjusted to adjust the posture of the connecting member. As a method for such fine adjustment, for example, a weld bead is formed on the upper surface of the member, and this is polished to finely adjust the height, or a shim made of a thin metal plate is attached to the upper surface. It is possible.

However, when trying to insert a tool or the like from above with the load receiving table folded, the front load receiving table becomes an obstacle, and the operation is not easy.
In view of such a conventional problem, an object of the present invention is to provide a load receiving base in which the posture of a connecting member can be adjusted and the adjustment work is easy.

  The load receiving table of the present invention includes a base load receiving table that can be moved up and down with respect to a vehicle body, a foldable mount attached to the base load receiving table, and a tip that forms a load receiving surface together with the base load receiving table in an unfolded state. A load receiving platform comprising a partial load receiving platform and a connecting member that connects the front receiving platform so as to be rotatable with respect to the base receiving platform, the load receiving platform being provided on the base receiving platform, A contact portion that serves as a detent for the connecting member when unfolded, a spacer portion that is attached to the upper surface of the contact portion that receives the connecting member, and a mounting base that is attached to a side surface of the contact portion. It has a shim that it has integrally.

  The load receiving base configured as described above has a thickness of the spacer portion by attaching a shim spacer portion on the upper surface of the contact portion and interposing the spacer portion between the contact portion and the connecting member. The posture of the connecting member can be adjusted by the amount. In addition, since the shim has a three-dimensional shape having a spacer portion and an attachment base corresponding to the upper surface and side surface of the contact portion, the attachment base portion can be attached to the side surface along the upper surface of the contact portion. For example, the entire shim can be fixed. In this way, the shim can be mounted from the lateral direction in which a work space can be easily secured.

Moreover, in the said load receiving stand, the side surface of the contact portion is directed to the rear of the vehicle body, and the mounting base portion of the shim is fixed to the contact portion in a co-tightened state together with a contact member that serves as a detent for the front load receiving stand. It may be configured.
In this case, the shim can be attached from the rear side of the vehicle body where the working space is secured, and the non-rotating contact member can also have a function of pressing the shim, thereby providing a simple and inexpensive configuration.

  According to the load receiving table of the present invention, it is possible to adjust the posture of the connecting member by the thickness of the spacer portion, and it is possible to attach the shim from the lateral direction of the load receiving table that easily secures a work space. Therefore, it is possible to provide a load receiving stand in which the posture of the connecting member can be adjusted and the adjustment work is easy.

Hereinafter, a receiving platform according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing a load receiving table lifting / lowering device 1 attached to a lower portion of a cargo box 102 at a rear portion of a vehicle body 101 of a truck. In the figure, a bracket 2A is attached to each of both side surfaces of the chassis 103, and a support member 2B extending in the longitudinal direction of the vehicle body is attached to the bracket 2A. The load receiving table elevating device 1 is supported by the support member 2B. The load receiving platform lifting / lowering apparatus 1 shown in the drawing is in a traveling state in which the load receiving platform 3 is folded and stored in the lower rear portion of the vehicle body 101.

  The support base portion 4 of the load receiving platform lifting / lowering device 1 is composed of a plurality of thick steel plates, and the pair of left and right support base portions 4 of the vehicle body are welded to square pipe-shaped cross beams 5 extending in the vehicle width direction. Yes. The support base 4 and the cross beam 5 are movable in the longitudinal direction of the vehicle body while being supported by the support member 2B. This movement is performed by expansion and contraction of the hydraulic cylinder 6 (only the left end side is shown). The upper arm 7 and the lower arm 8 are rotatable around pins 9 and 10 provided on the support base 4, respectively. The tip (rotating end) side of each of the upper arm 7 and the lower arm 8 is connected to the base load receiving platform 13 via pins 11 and 12. The upper arm 7 and the lower arm 8 constitute a parallel link, and the upper arm 7 and the lower arm 8 are arranged so that a quadrilateral connecting the center points of the pins 9, 10, 11, 12 is a parallelogram. Rotate. This rotation is performed by expansion and contraction of the hydraulic cylinder 18 for raising and lowering the load receiving table.

The load receiving platform 3 includes the above-described base load receiving platform 13, a front load receiving platform 14 that is foldably attached to the base load receiving platform 13, and a connecting member 15 that couples them together. The connecting member 15 is rotatable within a predetermined range around the pin 11 on one side, and supports the front load receiving table 14 via the pin 16 on the other side so as to be rotatable within a predetermined range. The front load receiving base 14 is configured to be foldable, and includes a main plate 14m and a subplate 14s that can be folded.
In the state of FIG. 1, the sub plate 14 s is folded with respect to the main plate 14 m, and the front load receiving table 14 in this state is folded with respect to the base load receiving table 13. In use, the load receiving table lifting / lowering device 1 is pulled out rearward from the state shown in FIG.

FIG. 2 is a side view showing a state in which the developed cargo receiving platform 3 is raised and lowered. When the load receiving platform 3 is at the rising end indicated by the solid line, the load receiving surface formed by the base load receiving platform 13 and the front load receiving platform 14 is in a state of being coincident with the floor surface of the load box 102. Further, when the load receiving platform 3 reaches the descending end indicated by a two-dot chain line, the load receiving table 3 is automatically tilted to be able to load and unload the load.
In FIG. 2, the support member 19 is fixed to the cross beam 5 and is at the center in the vehicle width direction. A roller 20 is rotatably supported at the rear end. The roller 20 has a function of rotating the front load receiving table 14 in the standing direction when the load receiving table lifting / lowering device 1 is retracted from the state of FIG. 1 and the upper arm 7 and the lower arm 8 are rotated downward. On the contrary, a function of automatically folding the front load receiving base 14 by turning the upper arm 7 and the lower arm 8 upward by putting the front load receiving base 14 in a folded state after being used. Have

Next, the details of the structure of the cargo receiver 3 around the connecting member 15 will be described.
FIG. 3 is an enlarged view of the periphery of the connecting member 15 in FIG. However, this figure is a schematic diagram showing only the portions necessary for the explanation by solid lines, and the other portions are indicated by two-dot chain lines or omitted. In the figure, a boss 21, which is internally threaded, is welded to the end of the front load receiving table 14. A stopper bolt 22 is attached to the boss 21 and is fixed with a nut 23 while adjusting the position of the bolt head 22a, thereby finely adjusting the rotation end position of the front load receiving base 14 around the pin 16, The front part receiving stand 14 can be made horizontal.

  On the other hand, a thick base plate 24 (abutting portion) is attached to the base load receiving base 13, and a contact member 26 for directly contacting (applying) the stopper bolt 22 with a shim 25 interposed therebetween is attached. The contact member 26 is also a pressing plate for fixing the shim 25 to the base plate 24. That is, the non-rotating contact member 26 has a function of pressing the shim 25. Therefore, compared with the case where these are provided separately, there are few members and it can be set as a cheap and simple structure.

  4A and 4B are diagrams showing the shim 25 as a single unit. FIG. 4A is a view of the shim 25 viewed from the same direction as FIG. 3, and FIG. 4B is a view of the shim 25 shown in FIG. The shim 25 is formed by forming a thin metal plate in an L shape, and is attached to the spacer portion 25a attached to the upper surface of the base plate 24 (FIG. 3) and to the side surface (rear side of the vehicle body) of the base plate 24. In this configuration, the mounting base 25b is integrally formed. A long hole 25c is formed in the attachment base portion 25b upward from the central portion on the lower end side.

  FIG. 5 is a cross-sectional view of the base plate 24, the shim 25, and the contact member 26. FIG. 6 is an exploded view of these, and shows a state during assembly. 5 and 6, the shim 25 is fixed by being tightened by a countersunk screw 27 in a state where the mounting base portion 25 b is sandwiched between the base plate 24 and the contact member 26. That is, the mounting base portion 25b of the shim 25 is fixed to the base plate 24 in the state of being fastened together with the contact member 26 that serves as a detent for the front load receiving base 14. The spacer portion 25a is attached to the upper surface of the base plate 24, and contacts the connecting member 15 at a position higher than the upper surface of the base plate 24 by the thickness. Therefore, compared with the case where there is no shim 25, the rotation end position in the clockwise direction of the connecting member 15 centering on the pin 11 of FIG. The position of the 14 pins 16 can be raised.

A plurality of shims 25 can be stacked as required. FIG. 7 is a cross-sectional view showing a state in which three shims 25 are stacked. In this case, the spacer portions 25a are tripled from the upper surface of the base plate 24, and the position of the pin 16 of the front load receiving base 14 shown in FIG. 3 can be greatly raised.
In this way, by adjusting the position of the pin 16 of the front load receiving table 14 during deployment, even if there is a step between the base load receiving table 13 and the front load receiving table 14, this can be eliminated. Therefore, the upper surface of the base load receiving table 13 and the upper surface of the front load receiving table 14 in the developed load receiving table 3 can be adjusted so as to be on the same level. It should be noted that the shim 25 is interposed between the base plate 24 and the contact member 26, so that the level adjustment of the front load receiving base 14 may be required. This can be easily performed by adjusting the stopper bolt 22. Can do.

  FIG. 8 is a view of the base plate 24 before the shim 25 and the contact member 26 are attached, as viewed from the rear side of the vehicle body, in a state where the cargo receiving platform 3 is folded (for example, the state shown in FIG. 1). As described above, the base plate 24 is exposed rearward, and there is no obstacle to the attachment of the shim 25 and the contact member 26. Further, when working from the rear of the vehicle body, a sufficient working space can be secured and tools can be easily inserted. Therefore, as shown in FIG. 6, the work of attaching the shim 25 to the base plate 24 from the rear side of the vehicle body, overlapping the contact member 26 and tightening the countersunk screws 27 can be easily performed.

FIG. 9 is a schematic view of the base load receiving tray 13 in the state of FIG. 2 as viewed from above. This figure mainly shows the positional relationship between the connecting member 15 having a wall thickness t (width in the vehicle width direction) and the shim 25 arranged immediately below the connecting member 15.
The width of the shim 25 is wider than the wall thickness t. Therefore, when the connecting member 15 is viewed from directly above, the shim 25 protrudes on both sides in the vehicle width direction. The reason for the protruding state is that the connecting member 15 is surely brought into contact with the shim 25 even if the connecting member 15 is slightly rattled or twisted in the vehicle width direction.
Note that the upper surface (load receiving surface) of the base load receiving table 13 on which the anti-slip embossing has been performed is substantially in the same plane as the upper surface of the connecting member 15.

  As described above, the load receiving platform 3 according to the present embodiment has the spacer member 25a of the shim 25 interposed between the base plate 24 and the connecting member 15, so that the posture of the connecting member 15 is equal to the thickness of the spacer member 25a. Is adjustable. Further, since the shim 25 has a three-dimensional shape having a spacer portion 25a and a mounting base portion 25b respectively corresponding to the upper surface and the side surface of the base plate 24, the spacer portion 25a is placed on the rear side of the vehicle body along the upper surface of the base plate 24. If the attachment base 25b is attached to the side surface, the entire shim 25 can be fixed. As a result, the shim 25 can be attached from the rear of the vehicle body (from the lateral direction) where a work space can be easily secured, so that the attitude of the connecting member 15 can be adjusted, and the load receiving platform 3 can be easily adjusted. Can be provided.

  In the above embodiment, the shim 25 is fixed in a state of being fastened together with the contact member 26 with respect to the stopper bolt 22 of the front load receiving base 14, but is not necessarily limited to this fastening. Only the attachment base 25b of the shim 25 may be attached to the base plate 24 by screws or welding. Further, the mounting base 25b of the shim 25 can be provided on the side surface of the vehicle body using the thick side surface (see FIG. 3) of the base plate 24.

In the above-described embodiment, the posture of the connecting member 15 provided between the base load receiving base 13 and the front load receiving base 14 can be adjusted by a specific configuration including the base plate 24 (contact portion) and the shim 25. However, the place where the configuration can be applied is not limited to the place of the above-described embodiment, and can be widely applied to places having a similar connection structure in the receiving platform. It is. In addition, in the foldable load receiving structure, “base load receiving table” and “front load receiving table” indicate whether two adjacent load receiving tables are on the root side (support base side) or on the tip side. It is a relative expression that indicates, and specifically, which part is designated as “base load receiving stand” or “front load receiving stand” can vary depending on the definition.
For example, since the front load receiving base 14 in the present embodiment is also foldable as described above, the main plate 14m and the sub plate 14s are connected to each other by a similar connecting member. Accordingly, if attention is focused only on these, the main plate 14m corresponds to the “base load receiving table”, and the sub plate 14s corresponds to the “front load receiving table”. The same effect can be obtained by the same structure (contact portion, shim).

It is a side view which shows the load receiving stand raising / lowering apparatus attached to the downward direction of the cargo box in the rear part of the vehicle body of a lorry. It is a side view which shows the state which expand | deploys and raises a receiving stand from the state of FIG. It is the figure which expanded the periphery of the connection member in FIG. It is the figure which shows a shim by itself, (a) is the figure seen from the same direction as FIG. 3, (b) is the figure which looked at the shim shown in (a) from the right side. It is sectional drawing of a base plate, a shim, and a contact member. It is an exploded view of a base plate, a shim, and a contact member, and shows a state at the time of assembly. It is sectional drawing which shows the state which piled up three shims. It is the figure which looked at the baseplate before attaching a shim and a contact member in the state by which the load receiving stand was folded from the vehicle body back side. It is the schematic which looked at the base part receiving stand of the state of FIG. 2 from upper direction.

Explanation of symbols

3 Load receiving table 13 Base load receiving table 14 Front receiving table 15 Connecting member 24 Base plate (contact portion)
25 shim 25a spacer 25b mounting base 26 contact member 101 vehicle body

Claims (2)

A base cradle attached to the vehicle body so as to be movable up and down;
A front load receiving base that is foldably attached to the base load receiving base and forms a load receiving surface together with the base load receiving base;
A load receiving table comprising a connecting member for connecting the front load receiving table rotatably with respect to the base load receiving table;
An abutting portion that is provided on the base cargo cradle and serves as a detent for the connecting member when the tip cargo cradle is deployed;
A load receiving platform comprising: a spacer portion that is attached to an upper surface of the contact portion that receives the connecting member; and a shim that integrally includes a mounting base portion that is attached to a side surface of the contact portion.   The side surface of the abutting portion is directed toward the rear of the vehicle body, and the mounting base of the shim is fixed to the abutting portion in a co-tightened state together with a contact member that serves as a detent for the front-end load cradle. The receiving platform according to claim 1.

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