JP2004142672A - Container loading and unloading vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact container loading and unloading vehicle capable of ensuring loading capacity required in practical use. <P>SOLUTION: A hydraulic tank 83 is arranged between a vertical beam 41 on one side and a reinforcing beam 42. A space between a hook arm 7 and an operator cab C is narrowed to prolong whole length of a container 3. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a container loading / unloading vehicle capable of loading / unloading and dumping containers while transporting the containers.
[0002]
[Prior art]
The container loading / unloading vehicle is configured to be able to load and unload containers containing general garbage and industrial waste, etc. by means of arms mounted on the vehicle body, and also to dump the container mounted on the vehicle body and unload only the contents. Have been. FIG. 8A is a side view illustrating a state in which the container 102 is being unloaded from the vehicle body 100 of the container unloading vehicle, and FIG. 8B is a side view illustrating a state at the time of dumping. The container loading / unloading vehicle includes a subframe 101 provided on a vehicle body 100, a dump arm 103 having one end pivotally mounted on a rear portion of the subframe 101, and a dump arm 103 which is turned to the other end of the dump arm 103. The cargo handling arm includes a cargo handling arm 104 having a hook 104a that is movably mounted on the shaft and hooks the container 102 at the tip end of rotation, a hydraulic drive device 105 for rotating the cargo handling arm 104, and the like. It rotates with respect to the dump arm 103 when loading and unloading, and rotates integrally with the dump arm 103 when dumping.
[0003]
The hydraulic drive device 105 includes a hydraulic pump 105 and a hydraulic control valve (not shown) in addition to a hydraulic cylinder 105a and an oil tank 105b for rotating the dump arm 103. The base end of the hydraulic cylinder 105a is rotatably mounted on the front part of the sub-frame 101, and its piston rod is rotatably mounted on the loading arm 104. The oil tank 105b is provided with a wide space 107 between the stored cargo handling arm 104 (see the two-dot chain line in FIG. 8A) and the cab 106, and is disposed in the space 107.
[0004]
[Patent Document 1]
JP-A-2000-62517 (pages 3 to 5, FIG. 1)
[0005]
[Problems to be solved by the invention]
In the container loading / unloading vehicle having the above-described configuration, a large space 107 is provided between the cargo handling arm 104 and the cab 106 in order to dispose the oil tank 105b. . For this reason, especially when the container loading / unloading vehicle is to be constituted by a small vehicle such as a mini vehicle, the entire length of the container 102 becomes too short, and it becomes impossible to secure a practically necessary loading capacity. For this reason, small container loading / unloading vehicles have not yet been put to practical use.
The present invention has been made in view of the above-mentioned conventional situation, and an object of the present invention is to provide a container loading / unloading vehicle which is small and can secure a practically necessary loading capacity.
[0006]
[Means for Solving the Problems]
A container loading / unloading vehicle according to the present invention for achieving the above object is a container loading / unloading vehicle capable of selectively executing an operation of loading / unloading a container from / to a vehicle body and an operation of dumping a container placed on the vehicle body. A subframe provided on the vehicle body and having a pair of left and right vertical girders and a horizontal girder connecting the vertical girders, and a subframe stored in a storage space provided between the pair of vertical girders; A dump arm that is rotatable by being axially attached to the rear part of the stringer, and a hook that is rotatably attached to the dump arm and that hooks a container at the tip of the rotation; And an oil tank that rotates with the dump arm when dumping, and an oil tank, and applies hydraulic power to the loading arm. And a braking system, the oil tank, is characterized in that provided between the storage space and girders of the dump arm.
[0007]
According to the container loading / unloading vehicle configured as described above, since the oil tank is disposed between the column of the subframe and the storage space of the dump arm, the oil tank is conventionally provided for disposing the oil tank. A large space between the cab and the cargo handling arm is not required, and the total length of the container can be increased accordingly.
[0008]
The container loading / unloading vehicle may be:
In this case, the length of the container can be lengthened in the same manner as described above, and the subframe can be reinforced by the reinforcing girder. Therefore, even when the container loading / unloading vehicle is constituted by a light vehicle, its durability can be improved. Can be secured.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a side view of a container unloading vehicle according to an embodiment of the present invention in a state where a container is mounted. The container loading / unloading vehicle is a mini vehicle, and a carrier device 2 is mounted on a chassis frame 1 at a rear portion of the vehicle body, and a container 3 is mounted on the carrier device 2. The container loading / unloading vehicle is configured to selectively execute an operation of loading / unloading the container 3 on / from the vehicle body and an operation of dumping the container 3 placed on the vehicle body. The container 3 includes an engaging pin 3a for fixing the container 3 to the carrier device 2, and a roller 3b for promoting smooth movement of the container 3 when landing.
[0010]
FIGS. 2A and 2B are diagrams showing only the carrier device 2, wherein FIG. 2A is a plan view and FIG. 2B is a side view. The left side of the figure is the vehicle body front side, and the right side is the vehicle body rear side. The carrier device 2 includes a sub-frame 4, the sub-frame 4 includes a pair of left and right vertical beams 41 extending in the front-rear direction of the vehicle body, and a pair of left and right reinforcing beams 42 disposed between the vertical beams 41. And a horizontal girder 43 for connecting the ends of the vertical girder 41 and the reinforcing girder 42 to each other. The sub-frame 4 is fixed to the chassis frame 1 (FIG. 1), and forms a vehicle body together with the chassis frame 1. The vertical girder 41 of the subframe 4 is provided near the side surface of the vehicle body, and the reinforcing girder 42 extends in parallel with the vertical girder 41. The reinforcing girders 42 can sufficiently secure the strength of the subframe 4.
[0011]
The carrier device 2 includes a dump arm 5 pivotally mounted on the vertical girder 41 and the reinforcing girder 42, a lift arm 6 with a rear end pivotally mounted on the dump arm 5, and a base end pivotally mounted on the lift arm 6. The apparatus further includes an L-shaped hook arm 7 attached thereto, and a hydraulic drive device 8 for rotating the lift arm 6 and the hook arm 7.
[0012]
The dump arm 5 is stored in a storage space D provided between the reinforcing girders 42, and its rear end is pivotally mounted on the right end of the vertical girder 41 by the pin 10, and is rotatable rearward of the vehicle body. It has become. On the rear upper surface of the dump arm 5, a hook member 5c that engages with the engagement pin 3a on the container 3 side is provided. When the container 3 is pulled up onto the sub-frame 4, the hook member 5 c can introduce the engaging pin from the rear side. A roller 13 is rotatably attached to both ends of the pin 10.
[0013]
The lift arm 6 is pivotally attached to a middle part of the dump arm 5 by a pin 11 and is rotatable about the pin 11 together with the hook arm 7. The hook arm 7 is pivotally mounted on a front end side of the lift arm 6 by a pin 12 and is rotatable. At the upper end of the hook arm 7, a hook 7a for hooking the container 3 (FIG. 1) is provided. The lift arm 6 and the hook arm 7 constitute a cargo handling arm as a whole. The cargo handling arm rotates about the pin 11 with respect to the dump arm 5 when loading and unloading the container, and is integrated with the dump arm 5 when dumping. Then, it rotates around the pin 10.
[0014]
FIG. 5 shows an arm lock device 9 for rotating the lift arm 6 integrally with the dump arm 5. The arm lock device 9 is provided as a pair of left and right arms, and is provided with a securing hook 91 rotatably mounted on the side surface of the lift arm 6 and a securing hook 91 provided on the side surface of the dump arm 5. A locking pin 92 that can be stopped and a connecting rod 93 that connects the securing hook 91 and the base end of the hook arm 7 are provided. As shown by the solid line in FIG. 5, when the hook arm 7 is retracted, the locking hook 91 is rotated counterclockwise through the connecting rod 93 and locked to the locking pin 92. I do. Thus, the lift arm 6 and the dump arm 5 are fixed to each other so as not to bend. 5, when the hook arm 7 is tilted clockwise by a predetermined angle due to the extension operation of a hook hydraulic cylinder 82 described later, the securing hook 91 is rotated clockwise through the connecting rod 93. And is separated from the locking pin 92. Thereby, the securing between the lift arm 6 and the dump arm 5 is released, and the lift arm 6 and the dump arm 5 can be rotated relative to each other.
[0015]
The hydraulic drive device 8 includes a lift hydraulic cylinder 81, a hook hydraulic cylinder 82, a hydraulic tank 83, a hydraulic control valve 84, a hydraulic pump (not shown), and the like. The lift hydraulic cylinder 81 has a cylinder tube attached to the front cross beam 43 of the sub-frame 4 and a piston rod attached to the lift arm 6, respectively.
[0016]
In the hook hydraulic cylinder 82, the cylinder tube is attached to the lift arm 6 and the piston rod is attached to the hook arm 7 (see FIGS. 3 and 4). Can be rotated. The hook arm 7 can be stored standing upright in a state where the lift arm 6 is stored horizontally. Further, the hook arm 7 is stored as close as possible to the cab C, and accordingly, the total length of the container 3 is made as long as possible to increase its loading capacity. Further, the stored hook arm 7 pulls the container 3 forward through the hook 7a, and fixes the container 3 on the lift arm 6 in cooperation with the hook member 5c with which the engaging pin 3a is engaged. Tied up.
[0017]
The hydraulic tank 83 has a substantially rectangular parallelepiped shape, and is provided in a dead space S generated between one of the vertical girders 41 and the reinforcing girder 42 opposed thereto. By arranging the hydraulic tank 83 in the dead space in this manner, the hook arm 7 can be brought as close as possible to the cab C.
The hydraulic control valves 84 are disposed separately on the sub-frame 4 on the side of the hook arm 7 and on the lower side of the sub-frame 4. The hydraulic pump is disposed below the sub-frame 4 and It is connected to the shaft.
[0018]
Next, the container loading / unloading operation and the dumping operation of the container loading / unloading vehicle configured as described above will be described with reference to FIGS.
FIG. 6A shows a vehicle in a state in which the container 3 is mounted (a state in which the container 3 can travel). In this state, the container 3 is locked, and when the container 3 is lowered from this state, first, the hook hydraulic cylinder 82 is extended and the hook arm 7 is moved backward to the position shown in FIG. Rotate. As a result, the locked state between the lift arm 6 and the dump arm 5 by the arm lock device 9 is released, and the container 3 moves rearward, so that the engaging pin 3a comes off the hook member 5c.
[0019]
Subsequently, when the lift hydraulic cylinder 81 is extended, the lift arm 6 rotates clockwise about the pin 11 (FIG. 2). Therefore, as shown in (c), the container 3 whose one is lifted by the hook arm 7 is tilted rearward while rolling and contacting the roller 5a and gradually falls down, and the roller 3b at the lower right end comes into contact with the ground.
After touching the ground, the container 3 moves on the ground (floor surface) according to the rotation of the lift arm 6 and the hook arm 7, and the entire container 3 is lowered onto the ground as shown in FIG.
Conversely, when the container 3 is loaded on the vehicle, the operation reverse to the above-described unloading operation is performed in order from FIG.
[0020]
On the other hand, when the container 3 is to be dumped, the hook arm 7 and the dump arm 5 are secured by the arm lock device 9 without operating the hook hydraulic cylinder 82 in the state (a). When the lift hydraulic cylinder 81 (FIG. 2) is extended in this state, as shown in FIG. 7, the dump arm 5 follows the container 3, and the dump arm 5, the lift arm 6, and the hook arm 7 are integrated with each other. Specifically, it pivots rearward about the pin 10 (FIG. 2). As a result, the container 3 is dumped, and the contents of the container 3 are discharged.
[0021]
As described above, in the container loading / unloading vehicle of the embodiment, since the hydraulic tank 83 is disposed between the one vertical girder 41 and the reinforcing girder 42 and the hook arm 7 is brought closer to the cab C, The entire length of the container 3 can be made longer than in the conventional case where the hydraulic tank is disposed between the cab C and the hook arm 7. For this reason, despite the fact that it is a mini vehicle, the loading capacity of the container 3 necessary for practical use can be ensured, and in combination with the fact that the subframe 4 is reinforced by the reinforcing girder 42, The unloading vehicle can be put to practical use.
[0022]
In the above-described embodiment, the reinforcing frame 42 is provided as the sub-frame 4. However, for example, a small freight vehicle slightly larger than a mini vehicle can be implemented without the reinforcing beam 42. In short, in the present invention, the hydraulic tank 83 may be arranged in the space between the dump arm 5 and the stringer 41.
[0023]
【The invention's effect】
As described above, according to the container loading / unloading vehicle of the present invention, the entire length of the container can be lengthened, so that a practically necessary loading capacity can be ensured even for a small vehicle, and a small container An unloading vehicle can be provided.
In particular, when a reinforcing girder is configured, the subframe can be reinforced by the reinforcing girder, so that durability can be ensured even for a container loading / unloading vehicle configured by a mini vehicle.
[Brief description of the drawings]
FIG. 1 is a side view of a container loading / unloading vehicle according to an embodiment of the present invention in a state where a container is mounted.
FIG. 2 is a plan view showing a carrier device in the container unloading vehicle shown in FIG.
FIG. 3 is a side view showing the carrier device.
FIG. 4 is a view as viewed in a direction indicated by an arrow X in FIG. 2;
FIG. 5 is a side view showing the arm lock device.
FIG. 6 is a side view showing a container loading / unloading operation.
FIG. 7 is a side view showing a dump operation.
FIG. 8 is a side view showing a container loading / unloading operation in a conventional container loading / unloading vehicle.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Chassis frame 3 Container 4 Subframe 41 Vertical beam 42 Reinforcement beam 43 Horizontal beam 5 Dump arm 6 Lift arm 7 Hook arm 7a Hook 8 Hydraulic drive 81 Lift hydraulic cylinder 82 Hook hydraulic cylinder

Claims (2)

An operation of loading and unloading containers to and from a vehicle, and a container loading and unloading vehicle capable of selectively executing an operation of dumping a container placed on the vehicle,
A subframe provided on the vehicle body and having a pair of left and right vertical girders and a horizontal girder connecting the vertical girders;
A dump arm that is stored in a storage space provided between the pair of stringers and is rotatable by being pivotally mounted at one end to a rear portion of the stringer;
It has a hook that is rotatably attached to the dump arm and hooks the container at the tip of the rotation, and rotates with respect to the dump arm when loading and unloading containers, and rotates integrally with the dump arm when dumping. A cargo handling arm,
A hydraulic drive device that includes an oil tank and imparts rotational power to the cargo handling arm;
A container loading / unloading vehicle, wherein the oil tank is provided between a storage space of the dump arm and a stringer. The sub-frame has a reinforcing girder extending parallel to the stringer between the storage space of the dump arm and the stringer,
2. The container loading / unloading vehicle according to claim 1, wherein the oil tank is provided between the stringer and the reinforcing girder.

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