JP3654997B2 - Loading truck dumper for power vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a loading platform dump device in a power vehicle used for civil engineering, forestry, agricultural work, and the like.
[0002]
[Prior art]
In order to facilitate loading and unloading work, the power carrier vehicle is provided with a loading platform dumping device for dumping the loading platform. Conventionally, this loading platform dump device includes a loading platform whose one end is rotatably attached to the vehicle body, and a loading platform dumping cylinder that is rotatably attached to the vehicle body, and the loading platform has a horizontal position and an inclined dumping device. The cylinder is provided to rotate between the positions, and the cylinder is provided to rotate the loading platform between the horizontal position and the inclined dump position and hold the loading platform in the inclined dump position in its maximum extension state. It was a thing.
[0003]
Therefore, in the conventional loading platform dump device, by extending the cylinder, the loading platform rotates from the horizontal position to the inclined dump position, and the loading platform is held at the inclined dump position in the maximum extension state of the cylinder. .
[0004]
[Problems to be solved by the invention]
However, in the conventional loading platform dump device described above, since the loading platform is rotated only by the operation of the cylinder, the loading platform is located above the inclined dumping position where the cylinder is fully extended (for example, the standing position). Cannot rotate. For this reason, depending on the type of baggage, it may be inconvenient to remove the baggage, and when carrying out inspection and maintenance of traveling devices etc. located below the cargo bed, the cargo bed becomes an obstacle and it is difficult to work. there were.
[0005]
In addition, if the stroke of the cylinder is increased, the loading platform can be rotated to an upright position that is higher than the inclined dump position. However, in this case, a large cylinder must be used, and the cylinder swings (rotates). (Range) becomes large, and a problem arises that a large installation space for the cylinder must be secured below the loading platform.
[0006]
The present invention is made in order to solve the above-described conventional problems, and rotates the loading platform from the horizontal position to the standing dump position without increasing the cylinder stroke from the horizontal position to the standing dump position. By making it possible to remove the load smoothly while solving the problems caused by increasing the size of the cylinder, it was also possible to easily inspect and maintain traveling equipment etc. An object of the present invention is to provide a platform dump device for a power vehicle.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a loading platform dumping device for a power carrier vehicle according to claim 1 of the present invention has a loading platform having one end rotatably attached to the vehicle body, and is rotatably attached to the vehicle body. A loading platform dumping cylinder and a link rotatably connected between the tip of the cylinder and the loading platform are provided, and the loading platform rotates from a horizontal position to an upright dumping position via an inclined dumping position. The cylinder is provided so as to rotate the loading platform between a horizontal position and an inclined dump position via a link, and to hold the loading platform in the inclined dump position in its maximum extension state, , It is fixed to the loading platform while the loading platform rotates from the horizontal position to the inclined dump position, and provided to rotate in the direction to open the connection angle between the cylinder and the loading platform when rotating from the inclined dump position to the standing dumping position. It has been.
[0008]
In this configuration, the loading platform rotates from the horizontal position to the inclined dump position by extending the cylinder from the shortened state. At this time, since the link is fixed to the loading platform, it does not affect the rotation operation of the loading platform. The loading platform is held at the inclined dump position in the maximum extension state of the cylinder. Normally, the dump angle of the inclined dump position is set so that the load is removed at the inclined dump position. Yes.
[0009]
And depending on the type of luggage, when the loading platform rotates further than the inclined dump position, when the removal of the luggage becomes smooth or when checking and maintaining the traveling device etc. located below the loading platform, The loading platform is rotated from the inclined dump position to the standing dump position. In this case, if the loading platform is further raised from the inclined dump position by hand, the link connected between the tip of the cylinder and the loading platform rotates in a direction to open the connection angle between the cylinder and the loading platform. The loading platform can be rotated from the inclined dump position to the standing dump position without requiring the operation of.
[0010]
That is, in the loading platform dump device of the present invention, the rotation between the horizontal position of the loading platform and the inclined dumping position is performed by the operation of the cylinder as in the prior art, but between the inclined dumping position of the loading platform and the standing dumping position. This rotation can be performed without requiring the cylinder to operate. Therefore, the loading platform can be rotated from the horizontal position through the inclined dump position to the standing dump position without increasing the cylinder stroke.
[0011]
The power truck loading platform dump device according to claim 2, wherein the vehicle body has a fixed loading platform fixed by occupying a part of the vehicle body, according to claim 1. The loading platform rotated by the loading platform dumping cylinder is arranged in at least a part of an empty portion of the fixed loading platform with respect to the vehicle body.
[0012]
In this configuration, if the load is a long object such as timber that has been cut down, the longer the load bed, the better the stability of the load.However, when unloading, it is not necessary to dump the entire load bed, and dump a part of it. If so, the wood will fall down. In addition, since the portion under the loading platform that requires inspection and maintenance is limited to a portion of the loading platform, only the necessary portion of the fixed loading platform needs to be provided in the loading platform dump device of this structure. In this case, it is not necessary to increase the strength of the loading platform, and therefore, it is lightweight and easy to handle, and is also economical.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing a power carrier equipped with a cargo bed dump device of the present embodiment.
[0014]
This power carrier vehicle is provided with a driver's seat 1 on one side (right side) front of the vehicle body and crawler travel devices 21 and 22 on the left and right sides of the vehicle body. The loading platform 3 is provided so as to cover the traveling device 22.
[0015]
The left end of the loading platform 3 is attached to the vehicle body frame 41 by a pin 30 so as to be rotatable. In this case, the loading platform 3 is provided so as to rotate from the horizontal position (non-dump position) A through the inclined dump position B to the standing dump position C toward the side of the vehicle body.
[0016]
A loading platform dump cylinder 5 is rotatably attached to a vehicle body chassis 42 below the loading platform 3 by a pin 50. The cylinder 5 is provided so as to rotate the loading platform 3 between the horizontal position A and the inclined dump position B via the link 6 and hold the loading platform 3 at the inclined dump position B in its most extended state. ing.
[0017]
The link 6 is rotatably connected between the tip of the cylinder 5 and the loading platform 3 via pins 60 and 61. This link 6 is fixed to the loading platform 3 while the loading platform 3 rotates from the horizontal position A to the inclined dump position B, and is connected to the cylinder 5 and the loading platform 3 when rotating from the inclined dump position B to the standing dump position C. It is provided so as to rotate in an opening direction. Note that a receiving plate 62 is fixed to the link 6, and the loading platform 3 is supported by the cylinder 5 via the receiving plate 62 while the loading platform 3 rotates from the horizontal position A to the inclined dump position B. .
[0018]
Next, the operation of the present embodiment will be described with reference to the operation diagram of the cargo bed dumper shown in FIG.
In the loading platform dump device, when the load is loaded on the loading platform 3, the cylinder 5 is shortened and the loading platform 3 is held at the horizontal position A. When removing the load, when the cylinder 5 is extended from the shortened state, the loading platform 3 rotates from the horizontal position A to the inclined dump position B around the pin 30. At this time, since the link 6 is fixed to the loading platform 3 in a state where the loading platform 3 is placed on the receiving plate 62, the presence of the link 6 does not affect the rotating operation of the loading platform 3. Then, the loading platform 3 is held at the inclined dump position B in the fully extended state of the cylinder 5. Normally, the removal of the load is completed at the inclined dump position B.
[0019]
Depending on the type of luggage, the crawler travel devices 21 and 22 positioned below the loading platform 3 may be more smoothly removed when the loading platform 3 is rotated more than the inclined dump position B or when the loading platform 3 is moved downward. In the inspection and maintenance of the above, the loading platform 3 is rotated from the inclined dump position B to the standing dump position C. In this case, when the loading platform 3 is further erected from the inclined dump position B manually, the link 6 connected between the tip of the cylinder 5 and the loading platform 3 is moved to the cylinder while the receiving plate 62 is separated from the loading platform 3. 5 and the loading platform 3 are rotated in the direction of opening the connecting angle (the direction in which the cylinder 5, the link 6 and the loading platform 3 are linear), and the loading platform 3 can be moved to the inclined dump position B without the operation of the cylinder 5. To the standing dump position C.
[0020]
As described above, the rotation between the horizontal position A and the inclined dump position B of the loading platform 3 is performed by the operation of the cylinder 5 as in the prior art, but the inclination between the inclined dump position B and the standing dump position C of the loading platform 3 is performed. The rotation in between can be performed without requiring the operation of the cylinder 5. Therefore, the loading platform 3 can be rotated from the horizontal position A through the inclined dump position B to the standing dump position C without increasing the stroke of the cylinder 5.
[0021]
Next, a second embodiment will be described with reference to FIG.
FIG. 3 is a side view showing a power carrier with a crawler suitable for carrying wood. In the figure, reference numerals 3a and 3b denote fixed loading platforms fixed to the front side and the rear side of the body frame 41, respectively. The loading platform 3 rotated by the cylinder 5 is provided in the middle of the fixed loading platforms 3a and 3b, and forms the same plane as the stationary loading platforms 3a and 3b when the loading platform 3 is lowered. In the figure, 43 is a protection wall on the cab side, and 44 is a support column on the lowering side. Since the other configuration is the same as that of the first embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.
[0022]
In this embodiment, fixed loading platforms 3a and 3b are arranged before and after the loading platform 3 rotated by the cylinder 5, and when loading and unloading long wood, the support column 44 is removed and the loading platform 3 is moved upward. It can be unloaded at a stretch just by turning. In this case, since the loading platform 3 lifts the approximate center of gravity of the wood, it can be safely unloaded without losing the balance between the front and back of the wood.
Because in the so that spaced only the main portion of the crawler device is member also more economical can be used light weight than the entire loading platform and the movable part, also the advantage of being able to perform Tegaruku be rotated by hand There is.
[0023]
Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to the embodiments. For example, in the present embodiment, the loading platform is turned toward the side of the vehicle body. However, it may be turned toward the side or the front of the vehicle body.
[0024]
【The invention's effect】
As described above, the load carrier dump device for a power vehicle according to claim 1 of the present invention has the above-described configuration, so that the load carrier is further moved from the horizontal position to the inclined dump position without increasing the cylinder stroke. It can be rotated to the standing dump position.
Therefore, it is possible to smoothly remove the load while solving the problem caused by increasing the size of the cylinder, and it is possible to obtain an effect that the traveling device and the like can be easily inspected and maintained.
[0025]
In addition, since the load dump device for the power carrier vehicle according to claim 2 has the above-described configuration, in the case where the load is a long object such as cut wood, the longer the load bed, the better the stability of the load. However, it is not necessary to dump the entire bed when unloading, and if a part is dumped, the wood will fall. In addition, since the portion under the loading platform that requires inspection and maintenance is limited to a portion of the loading platform, only the necessary portion of the fixed loading platform needs to be provided in the loading platform dump device of this structure. In this case, it is not necessary to increase the strength of the loading platform. Therefore, the weight is light and the handling is easy, and the effect of being economical is obtained.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a front view showing a power carrier equipped with a carrier dump device of an embodiment.
FIG. 2 is an operation explanatory diagram of the loading platform dump device.
FIG. 3 is a side view showing a power carrier with a crawler suitable for carrying wood.
[Explanation of symbols]
3 Loading platform 3a, 3b Fixed loading platform 5 Loading platform cylinder 6 Link A Horizontal position B Inclined dumping position C Standing dumping position

Claims (2)

A loading platform with one end pivotably attached to the vehicle body;
A loading platform dump cylinder attached to the vehicle body in a rotatable manner;
Comprising a link rotatably connected between the tip of the cylinder and the loading platform,
The loading platform is provided so as to rotate between a horizontal position and an upright dump position via an inclined dump position,
The cylinder is provided to rotate the loading platform between a horizontal position and an inclined dump position via a link, and hold the loading platform in the inclined dump position in its most extended state,
The link is fixed to the loading platform while the loading platform rotates from the horizontal position to the inclined dump position, and rotates in a direction to open a connection angle between the cylinder and the loading platform when the loading platform rotates from the inclined dump position to the standing dump position. A loading platform dumper for a power transporter, characterized in that it is provided in the vehicle. The loading platform dumping device for a power carrier according to claim 1, wherein the vehicle body has a fixed loading platform fixed by occupying a part of the vehicle body, and the loading platform rotated by the loading platform dumping cylinder is the fixed loading platform. A dump truck dumper for a power vehicle, wherein the dump truck is disposed in at least a part of an empty portion with respect to the vehicle body.

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