JP2003002106A - Apparatus for building loading platform lifter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus which facilitates installation work of a loading platform lifter on a freight car body. SOLUTION: A supporting structure 3 in which a height of its supporting point is adjustable is set on a stand moving along a floor surface G. An arm 4 for supporting the loading platform lifter is supported by the supporting structure 3. An angle adjusting structure 5 which may tilt forward the arm 4 is also set.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bodywork apparatus for equipping a freight vehicle with a platform for raising and lowering a cradle.

[0002]

2. Description of the Related Art A loading tray raising / lowering device is a device for raising and lowering a loading tray for loading and unloading cargo, and is attached to a floor below a vehicle body rear of a freight vehicle. Conventionally, in order to attach this loading platform lifting device to the vehicle body, lift the device with a crane or jack, and finely adjust the position of the mounting bracket back and forth so that the loading platform is parallel to the floor surface of the carton. Then, it was positioned at a predetermined position and fixed to the vehicle body by welding.

[0003]

In the conventional mounting method as described above, the mounting can be relatively easily performed if the floor surface of the luggage box is horizontal. However, the packing box
It is designed so that its rear side is higher than its front side when it is empty due to a leaf spring or the like provided on an axle on the vehicle body side, and becomes horizontal in a certain load-loaded state. When the carrier cradle lifting device is attached to the vehicle body at the factory, the cargo box is naturally empty. Therefore, it is necessary to position the loading platform elevating / lowering device according to the floor surface of the slanted loading box, but this is difficult for a crane or a jack to think of, and a great deal of labor is required for mounting.

In view of the above-mentioned conventional problems, it is an object of the present invention to provide a device for facilitating the work of attaching the load receiving platform elevating device to the vehicle body.

[0005]

SUMMARY OF THE INVENTION The present invention is a bodywork apparatus for equipping a freight vehicle with a cargo platform elevating device for raising and lowering a cargo platform for loading and unloading cargo, which is movable along a floor surface. Platform, a support mechanism mounted on the platform and capable of adjusting the height of a support point, an arm laterally supported by the support mechanism for supporting the load receiving platform elevating device, and a predetermined horizontal position. An angle adjusting mechanism for tilting the arm within an angle range is provided (Claim 1).
In the bodywork device configured as described above, the height of the arm can be arbitrarily adjusted by the support mechanism. Further, the arm can be tilted by a desired angle by the angle adjusting mechanism. Therefore, this arm can support the load receiving platform elevating / lowering device according to the height of the vehicle body side mounting portion and its inclination.

In the above-described mounting device (claim 1), the arm may be detachable at its tip or the whole (claim 2). In this case, only the arm can be easily replaced.

In the above-mentioned mounting device (claim 1), it is preferable that a pair of support mechanisms and arms are provided on the left and right sides so that they can operate independently (claim 3). In this case, the pair of arms can be tilted in the width direction of the vehicle body by performing height adjustment separately for the left and right.

In the above-described mounting device (claim 1), the arm may support the cargo cradle lifting device by being connected to a fixing member of the cargo cradle lifting device (claim 4). In this case, the fixing member acts as a part of the arm. Therefore, the length of the arm of the arm can be shortened accordingly.

In the above-mentioned mounting device (claim 4), it is preferable that the fixing member is a bumper stay (claim 5). In this case, the bumper stay has sufficient mechanical strength to be used as part of the arm.

Further, the present invention is a bodywork apparatus for equipping a freight vehicle with a cargo platform elevating device for elevating a cargo platform for loading and unloading cargo, and a platform movable along the floor surface, A support mechanism mounted on the pedestal and capable of adjusting the height of a support point, an arm laterally supported by the support mechanism for supporting the load receiving platform elevating device, and within a predetermined angle range with respect to the horizontal It may be provided with an angle adjusting mechanism for tilting the arm, and a transfer pallet that supports the load receiving platform elevating device in a predetermined posture and is lifted by the tip of the arm (claim 6). In the bodywork apparatus configured as described above (claim 6), the height of the arm can be arbitrarily adjusted by the support mechanism. Further, the arm can be tilted by a desired angle by the angle adjusting mechanism. Therefore, by lifting the transfer pallet supporting the load receiving platform elevating device in a predetermined posture with the arm, the load receiving platform elevating device can be supported according to the height of the vehicle body side mounting portion and its inclination. Further, since the transport pallet is lifted by the arm, it is possible to save the labor for connecting the both, and the labor for lowering the loading platform elevating device from the transport pallet.

[0011]

1 and 2 are a side view and a plan view, respectively, showing a bodywork device of a cargo platform lifting device according to a first embodiment of the present invention. In FIG. 1 and FIG. 2, the mounting apparatus 1 is configured by a pedestal 2, a support mechanism 3, a horizontally extending arm 4, and an angle adjusting mechanism 5 as main components. The gantry 2 has a rectangular frame shape (see FIG. 2)
And a plurality of wheels 2 on the left and right side frames 21.
Two are provided. As a result, the gantry 2 can move smoothly along the floor surface G. The support mechanism 3, the arm 4, and the angle adjusting mechanism 5 are provided in a pair of left and right, and the left and right can operate independently of each other. A connection plate 41 is welded to the left end side of the arm 4, and four bolts 42 are welded to the connection plate 41 in the illustrated direction. These bolts 4
The arrangement of 2 corresponds to the bolt hole for mounting the bumper in the bumper stay of the vehicle (details will be described later).

The support mechanism 3 has a form similar to a magic hand, and has two support members 3 of equal length which are axially attached to each other in an X shape.
1, 32 and 33, 34 have a double structure in the width direction (direction perpendicular to the paper surface) and a double structure in the height direction. To connect the supports 31 to 34, eight pins 35,
36 (two left and right pins 35 at the intermediate height position, and
The other six pins 36) are used, and the support 31 is rotatably held with respect to the lateral frame 23 passed in the width direction of the gantry 2 via the pin 36 on the lower right side. ing.
Further, the support body 34 is rotatably held relative to the angle adjusting mechanism 5 via the pin 36 on the upper right portion. On the other hand, a roller 37 is rotatably attached to the lower left portion of the support 32 via a pin 36. The roller 37 is a sliding plate 24 provided on the frame 21 of the gantry 2.
It is possible to move left and right while rotating the top. A roller 37 is rotatably attached to the upper left portion of the support 33 via a pin 36. The roller 37 is movable left and right while rotating and supports the arm 4. The screw 38 is provided between the left and right pins 35 at the intermediate height position.

FIG. 3 is a slightly enlarged vertical sectional view of the support mechanism 3 as a center. In the figure, the pin 35 on the left of the two pins 35 at the intermediate height position is
Internal thread processing that penetrates this is given, and the pin 3
5 and the screw 38 are screwed together. On the other hand, the pin 35 on the right side has a hole through which the screw 38 simply passes.
The screw head 38a has a washer, and the right pin 35
Is in contact with. When the screw head 38a is rotated counterclockwise, the distance between the two pins 35 is expanded and the support mechanism 3 contracts in the vertical direction (see FIG. 4). Conversely, when the screw head 38a is rotated clockwise, the distance between the two pins 35 is shortened, and the support mechanism 3
Grows up. That is, the rotation of the screw 38 causes the support mechanism 3 to operate like a jack, and the height can be adjusted.

FIG. 5 is an enlarged sectional view of a portion of the angle adjusting mechanism 5 shown in FIG. Further, FIG. 7 shows VII in FIG.
It is a VII line sectional view. 5 and 7, the frame body 51 of the angle adjusting mechanism 5 is a U-shaped member and is welded to the arm 4. Long holes 51a are provided on both side surfaces of the frame body 51.
Is provided, and the pin 36 inserted therein is movable up and down. The bolt 52 is screwed to the bottom surface of the frame body 51, and the upper end portion of the bolt 52 is in contact with the pin 36.

Here, as shown in FIG. 1, the arm 4 is
Seen from the position supported by the upper left roller 37, the left side is longer than the right side. Therefore, in FIG. 3, the center of gravity of the arm 4 is to the left of the support point P1 of the arm 4 by the upper left roller 37. Therefore, a load is applied to the right end of the arm 4 in the counterclockwise direction about the support point P1 and the angle adjusting mechanism 5 tries to move upward. That is,
The bolt 52 tries to push up the pin 36. But,
The pin 36 tries to stay at the height position determined by the rotational position of the screw 38 of the support mechanism 3. Therefore, arm 4
The right end of is not rotatable and is supported at the position shown. This also applies to the case where a load is applied to the arm 4 by connecting the load receiving platform elevating device as described later. That is, when the contact point between the bolt 52 and the pin 36 is P2, an upward force is always applied to P2, and the bolt 52 is always pressed against the pin 36.

Therefore, as shown in FIG. 6, when the bolt 52 is rotated to lower the position of its tip relative to the frame 51, the right end of the angle adjusting mechanism 5 and the arm 4 is supported by the support point P1. The arm 4 as a whole is tilted forward from the horizontal state by slightly turning counterclockwise around (FIG. 3) (the left side in FIG. 6 is the front). The limit of the forward tilt angle is determined by the movable amount of the pin 36 in the long hole 51a. Thus, by adjusting the position of the bolt 52, the arm 4 can be tilted forward with respect to the horizontal within a predetermined angle range. Further, by making the heights of the pair of left and right support mechanisms 3 different from each other, the pair of left and right arms 4 can be tilted (strictly, a stepped state) in the vehicle body width direction.

Next, the bodywork device 1 configured as described above.
The procedure for equipping the freight vehicle with the cargo platform elevating device will be described with reference to FIG. FIG. 8 is a side view of the load receiving platform elevating / lowering device 100 mounted on the rear portion of the vehicle body 201 below the load box 200. The load receiving platform elevating / lowering device 100 has a load receiving base 102 attached to the tip of a lift mechanism 101 forming a parallel link, and can lift the load receiving base 102 by operating the lift mechanism 101 by hydraulic pressure. Moreover, the rear opening of the luggage box 200 can be closed by erecting the loading tray 102 in the raised position. A support member 103, which is a fixed member, is provided at the base of the lift mechanism 101, and the support member 103 is attached to a bracket 104. Bracket 104
Are fixed to the vehicle body 201 by welding or the like. Bracket 10
4 is integrated with the bumper stay 105, and a bumper 10 for preventing a rush is provided at the rear end of the bumper stay 105.
6 is attached.

When mounting the load receiving platform elevating / lowering device 100, the vehicle body 201 inclines forward when the load is empty. In addition, the weight of the fuel in the fuel tank below the luggage box 200 may cause the vehicle body 201 to be slightly inclined in the vehicle body width direction.

Therefore, the above-described load receiving platform lifting device 10
In order to attach 0 to the vehicle body 201, first, the bumper 106
With the unattached state, the load receiving platform elevating device 100 is supported by a crane or the like, and the bumper stay 105 and the tip of the arm 4 of the bodyworking device 1 are brought close to each other as shown in FIG. Here, as described above, the bolts 42 are arranged in the bumper stay 10
It corresponds to the arrangement of the bolt holes 105 a of No. 5. Therefore,
The bolt 42 is inserted into the bolt hole 105a and fixed with a nut.

After the load receiving platform elevating device 100 is connected to the mounting device 1 in this way, as shown in FIG. 10, the screw 38 of the supporting mechanism 3 is turned to lift the arm 4 to a predetermined height. The predetermined height means the height at which the load receiving surface of the load receiving base 102 is at the same level as the floor surface of the load box 200. Further, as shown in FIG. 11, the bolt 5 of the angle adjusting mechanism 5 is
2 to adjust the arm 4 to tilt forward so that the vehicle body 20 in an empty state
Almost equal to the slope of 1. Further, by making the heights of the pair of left and right support mechanisms 3 different from each other, the pair of arms 4 is tilted in the same direction according to the tilt of the vehicle body 201 in the vehicle width direction. Then, the body mounting apparatus 1 is moved forward, and while further finely adjusting the forward tilt angle of the arm 4 and the height of the support mechanism 3, as shown in FIG.
Position it in place to be installed. At this position, the floor surface F of the luggage box 200 and the surface of the cargo receiving tray 102 are on the same line. After positioning, the load receiving platform elevating device 100 is fixed to the vehicle body 201 by welding or the like. After that, the load receiving platform elevating device 100 and the bodywork device 1 are disconnected, and the bodywork device 1 is removed.

In this way, the loading platform elevating / lowering device 100 can be easily carried out.
Can be attached to the vehicle body 201. Further, the bumper stay 105 plays a role as a part of the arm 4 by connecting the load receiving platform elevating device 100 to the bodywork device 1 in this manner. Therefore, the arm length of the arm 4 can be shortened by that amount, which contributes to downsizing of the bodywork device 1. The bumper stay 105 is a fixing member that is originally excellent in mechanical strength. Therefore, it is not necessary to separately provide a reinforcing member, and it is suitable as a connecting member. However, it is also possible to connect by using a fixing member other than the bumper stay 105 inside the load receiving platform elevating device 100.

Next, a mounting device of the load receiving platform elevating device according to the second embodiment will be described with reference to FIGS. 13 to 21. FIG. 13 is a side view showing the bodywork device of the load receiving platform elevating device according to the second embodiment. The bodywork device 10 is
The pedestal 2, the support mechanism 3, the arm 40, and the angle adjustment mechanism 5 are configured as main components. Arm 4
Except for 0, it is exactly the same as the bodywork device 1 of the first embodiment. The arm 40 of the present embodiment is different from the arm 4 of the first embodiment in that the arm 40 is bent at a right angle in two places.
That is, the arm 40 is the first arm 40 that extends horizontally.
1 and a second arm 402 extending downward from its tip,
Further, it has a third arm 403 horizontally extending forward from the lower end of the second arm 402. According to such a configuration of the arm 40, the tip end portion of the arm 40 supporting the load receiving platform elevating device, that is, the third arm 403 can be set at a position lower than the minimum support height of the support mechanism 3.

The bodywork device 10 according to the second embodiment.
Is mainly applied to an underfloor storage type cargo receiving platform elevating / lowering device 300 shown in FIGS. 14 and 15. FIG. 14 shows a packing box 200.
Lifting device 3 for the loading platform mounted on the rear part of the vehicle body 201 below
It is a side view of 00. The load receiving platform elevating / lowering device 300 has a foldable load receiving platform 302 attached to the tip of a lift mechanism 301 forming a parallel link.
A support member 303 is provided at the base of the lift mechanism 301, and the support member 303 is slidably attached to the front and rear of the vehicle with respect to a guide member 304 that is a fixed member. The guide member 304 is attached to the bracket 305, and the bracket 305 is fixed to the vehicle body 201 by welding or the like. As shown in FIG. 15, after the support member 303 is slid backward, the lift mechanism 301 is operated by hydraulic pressure from the state where the load receiving tray 302 is unfolded to move the load receiving tray 3
02 can be raised and lowered as shown.

Next, a procedure for equipping the freight vehicle with the cargo receiving platform elevating / lowering device 300 using the bodyworking device 10 will be described. First, the loading platform elevating / lowering device 300 is placed on the transport pallet 6 shown in FIG. The transport pallet 6 functionally forms a part of the bodywork device 10. The transfer pallet 6 includes a pallet body 60, and a support base 61 and a support column 62 that are provided on the upper surface of the pallet body 60. Pallet body 6
0 consists of a channel-shaped member framed in a square,
Both left and right open end faces are fork holes 60a.
The support base 61 is for receiving the lower end surface 303a of the support member 303, and has a predetermined length in the width direction (direction perpendicular to the paper surface). In addition, the upper end portion of the support column 62 has a semicircular cross-sectional shape, whereby the lift mechanism 301
It can be stably received like holding the horizontal round bar member 301a.

FIG. 17 shows a state in which the loading platform elevating / lowering device 300 is placed on the transport pallet 6. In this state, the bracket 305 of the load receiving platform elevating / lowering device 300 is supported in a substantially horizontal posture. By inserting the fork of a forklift into the fork hole 60a and scooping it up, it is possible to transport the cargo platform elevating / lowering device 300 together with the transport pallet 6.

Next, as shown in FIG. 18, the load receiving platform elevating / lowering device 300 placed on the transfer pallet 6 is placed on the general-purpose pallet 7 having a predetermined height. And the third of the bodywork device 10
The arm 403 is aligned with the fork hole 60a of the transfer pallet 6, the gantry 2 is moved, and the third arm 403 is inserted into the fork hole 60a and penetrated. Subsequently, as shown in FIG. 19, the screw 38 of the support mechanism 3 is turned to lift the arm 40 to a predetermined height. Further, as shown in FIG.
The arm 52 is tilted forward by adjusting the bolt 52 of the angle adjusting mechanism 5 so that it substantially matches the tilt of the vehicle body 201 in an empty state. Then, the bodywork device 10 is moved forward, and the forward tilt angle of the arm 40 and the height of the support mechanism 3 are finely adjusted.
As shown in FIG. 5, the load receiving platform elevating device 300 is positioned at a predetermined position to be attached. After the positioning, the loading platform elevating device 300 is fixed to the vehicle body 201 by welding or the like. Then, the height of the arm 40 is lowered slightly to separate the carrier pallet 6 from the load receiving platform elevating device 300, and the bodywork device 10 is removed.

In this way, the underfloor stowage pedestal raising / lowering device 300 can be easily attached to the vehicle body 201.
Further, by using such a transport pallet 6,
Since the third arm 403 can be inserted and lifted like a fork of a forklift, it is possible to save the labor of connecting the both and also the labor of lowering the loading platform elevating device 300 from the transport pallet 6. Therefore, the mounting work can be performed quickly.

In the above embodiments, the arms 4 and 40 and the angle adjusting mechanism 5 are fixed to each other by welding, and the angle adjusting mechanism 5 and the supporting mechanism 3 are connected to each other. Only the pin 36 on the upper right in FIG. 1 or FIG. Therefore, by making the pin 36 easily removable, the entire arms 4 and 40 including the angle adjusting mechanism 5 can be attached to and detached from the support mechanism 3. According to such a detachable structure, a plurality of arms having different lengths and shapes can be selectively used as appropriate, so that various cargo cradle lifting devices can be supported by the common gantry 2 and the support mechanism 3. it can.

The arms 4 in the above embodiments are
Various design changes of 40 are possible. For example, in FIG.
As shown in FIG. 3, the third arm 40 in the second embodiment is
The support pedestal 61 and the support column 62 may be provided directly on the sheet 3, and the transport pallet 6 may be omitted. In this case, the loading platform elevating / lowering device 300 is directly moved to the third arm 403 using a crane or the like.
Place it on top. Further, it is also possible to directly connect a short third arm 403 to the right end surface of the transfer pallet 6 shown in FIG. 16 (instead of inserting it like a fork).

Further, as shown in FIG. 23, the first arm 4
You may provide the arm connection part 401a in the middle of 01. In this case, various types of arms on the tip side of the arm connecting portion 401a are prepared, and if necessary, they can be replaced as shown in FIG. 24, for example, to easily change the shape of the tip side of the arm. Further, the arm connecting portion as described above is adopted for the arm 4 or 40, and as the arm on the tip end side, a straight type as in the first embodiment and a bent type as in the second embodiment are prepared. For example, the arm 4 of the first embodiment and the arm 40 of the second embodiment can be used easily and quickly.

[0031]

The present invention constructed as described above has the following effects. According to the bodywork apparatus for the load-bearing platform lifting device of claim 1, the arm can support the load-bearing platform lifting device in accordance with the height of the vehicle-body-side mounting portion and its inclination. Will be easier.

According to the mounting apparatus of the load receiving platform raising / lowering device of the second aspect, it is possible to support various load receiving platform raising / lowering devices by sharing the platform and the supporting mechanism by exchanging only the arms.

According to the bodywork apparatus for the load-bearing platform lifting device of the third aspect, the load-bearing platform lifting device can be supported inclining also in the vehicle body width direction by adjusting the heights of the left and right separately.

According to the bodywork apparatus for the load receiving / descending / descending device of the fourth aspect, since the fixing member plays a role as a part of the arm, the arm length of the arm can be shortened accordingly. . Therefore, the bodywork device can be made compact, and the bodywork device can be manufactured at low cost.

According to the loading device for the lifting and lowering device of the load receiving stand of claim 5, since the bumper stay has excellent mechanical strength, it is not necessary to separately provide a reinforcing member, and therefore the device can be manufactured at low cost. .

According to another aspect of the present invention, there is provided a body mounting device for a loading platform elevating device, wherein a carrier pallet supporting the loading platform elevating device in a predetermined posture is lifted by an arm so that the height of the mounting portion on the vehicle body side and its inclination can be adjusted. Since the loading platform elevating device can also be supported, the loading platform lifting device can be easily attached. Further, since the transport pallet is lifted by the arm, it is possible to save the labor for connecting the both, and the labor for lowering the loading platform elevating device from the transport pallet. Therefore, the mounting work can be performed quickly.

[Brief description of drawings]

FIG. 1 is a side view showing a bodywork device of a load receiving platform elevating device according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a bodywork device of the load receiving platform elevating device according to the first embodiment of the present invention.

FIG. 3 is a slightly enlarged vertical sectional view of a support mechanism in the bodywork device of FIG. 1 as a center.

FIG. 4 is a side view showing a state in which the height of the support mechanism in the bodywork device of FIG. 1 is lower than that in the case of FIG.

5 is an enlarged cross-sectional view of a portion of the angle adjusting mechanism in FIG.

6 is an enlarged cross-sectional view of a portion of the angle adjusting mechanism in FIG. 3, showing a state where the arm is tilted forward.

7 is a sectional view taken along line VII-VII in FIG.

FIG. 8 is a side view of the load receiving platform lifting device mounted on the rear portion of the body of the freight vehicle.

9 is a side view showing a procedure for attaching the load receiving platform lifting device to the vehicle body by the loading device shown in FIG. 1, showing a state before the loading device and the load receiving platform lifting device are coupled.

10 is a side view showing a procedure for attaching the load receiving platform lifting device to the vehicle body by the loading device shown in FIG. 1, showing a state in which the loading device and the load receiving platform lifting device are connected to each other.

FIG. 11 is a side view showing a procedure for attaching the load receiving platform lifting device to the vehicle body by the loading device shown in FIG. 1, showing a state in which the loading device connected to the load receiving platform lifting device approaches the vehicle body.

FIG. 12 is a side view showing a procedure for attaching the load receiving platform lifting device to the vehicle body by the bodywork device shown in FIG. 1, showing a state in which the load receiving platform lifting device is positioned.

FIG. 13 is a side view showing a bodywork device of the load receiving platform elevating / lowering device according to the second embodiment of the present invention.

FIG. 14 is a side view of an underfloor stowage-type cradle lifting / lowering device mounted on the rear portion of the body of a freight vehicle.

15 is a side view showing the operation of the load receiving platform elevating / lowering device of FIG. 14. FIG.

16 is a side view showing a state before the load receiving platform elevating / lowering device of FIG. 14 is placed on a transport pallet.

FIG. 17 is a side view showing a state where the load receiving platform elevating device of FIG. 14 is placed on a transport pallet.

FIG. 18 is a side view showing a procedure for attaching the load receiving platform elevating device to the vehicle body by the bodyworking device shown in FIG. 13, showing a state before the arm of the bodyworking device is inserted into the transport pallet.

19 is a side view showing a procedure for attaching the load receiving platform elevating device to the vehicle body by the bodywork device shown in FIG. 13, showing a state in which the arm of the bodywork device is inserted into the transport pallet and lifted.

20 is a side view showing a procedure for attaching the load receiving platform lifting device to the vehicle body by the loading device shown in FIG. 13, showing a state in which the loading device supporting the load receiving platform lifting device approaches the vehicle body.

FIG. 21 is a side view showing a procedure for attaching the load receiving platform lifting device to the vehicle body by the bodywork device shown in FIG. 13, showing a state in which the load receiving platform lifting device is positioned.

FIG. 22 is a side view showing another type of arm.

FIG. 23 is a side view showing an arm provided with an arm connecting portion.

FIG. 24 is a side view showing another type of arm provided with an arm connecting portion.

[Explanation of symbols]

1,10 bodywork equipment 2 mounts 3 Support mechanism 4,40 arms 5 Angle adjustment mechanism 6 Transport pallets 105 Bum Paste 100,300 loading platform lifting device 102,302 cargo tray 200 packing boxes 201 car body P1 support point

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshitaka Kawakami             6-45, Koshienguchi, Nishinomiya-shi, Hyogo             Inside Higashi Development Industry Co., Ltd.

Claims (6)

[Claims] 1. A mounting apparatus for equipping a freight vehicle with a cargo platform lifting device for lifting a cargo platform for loading and unloading cargo, the platform being movable along a floor surface, and the platform being mounted on the platform. And a support mechanism capable of adjusting the height of a support point, an arm laterally supported by the support mechanism for supporting the load receiving platform elevating device, and the arm being tilted within a predetermined angle range with respect to the horizontal An apparatus for mounting and lowering a loading platform which comprises an angle adjusting mechanism. 2. The body mounting device for a load receiving platform elevating device according to claim 1, wherein the arm is detachable at its tip or in its entirety. 3. The body mounting apparatus for a load-carrying platform lifting device according to claim 1, wherein a pair of the support mechanism and the arms are provided on the left and right sides, and each of them is independently operable. 4. The body mounting apparatus for a load receiving platform elevating device according to claim 1, wherein the arm supports the load receiving platform elevating device by being connected to a fixing member of the load receiving platform elevating device. 5. The body mounting apparatus for a load receiving platform elevating device according to claim 4, wherein the fixing member is a bumper stay. 6. A mounting device for equipping a freight vehicle with a loading platform lifting device for lifting a loading platform for loading and unloading cargo, the platform being movable along a floor surface, and mounted on the platform. And a support mechanism capable of adjusting the height of a support point, an arm laterally supported by the support mechanism for supporting the load receiving platform elevating device, and the arm being tilted within a predetermined angle range with respect to the horizontal An apparatus for mounting a load-carrying platform lifting device, comprising: an angle adjusting mechanism; and a transport pallet that supports the load-carrying platform lifting device in a predetermined posture and is lifted by a tip of the arm.