JP4196364B2 - U frame vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a U-frame vehicle capable of stacking loads such as pallets, racks and containers.
[0002]
[Prior art]
In conventional U-frame vehicles, the vehicle body and the cargo bed are separated, and only the cargo bed is raised or lowered, or the vehicle body and the cargo bed are integrated, and the vehicle body and the cargo bed are raised and lowered together. Exists.
[0003]
That is, the U frame vehicle in which the vehicle body and the loading platform are separated is composed of a single-shaft tractor, a U-shaped frame constituting the vehicle body, and an inner frame that is separately attached to the U-shaped frame and serves as a loading platform. Thus, the inner frame can be moved up and down by a lifting device, and loading and unloading operations such as pallets, racks and containers can be performed.
[0004]
Further, a U-frame vehicle in which the vehicle body and the loading platform are integrated includes a uniaxial tractor and a U-shaped frame in which the vehicle body and the loading platform are integrated, and the U-shaped frame is formed by the front lifting device and the vehicle suspension device. Can be moved up and down to allow loading and unloading of loads such as pallets, racks and containers.
[0005]
[Problems to be solved by the invention]
By the way, in a cargo handling work place where a U-frame vehicle is operating, demands for stacking these are increasing due to rationalization of the installation area of loads such as pallets, racks, and containers.
[0006]
However, the conventional U-frame vehicle cannot obtain a height that can stack pallets, racks, containers, etc. by itself, and requires another lifting machine to stack them. .
[0007]
Therefore, even if the installation area can be rationalized by stacking loads such as pallets, racks, containers, etc., there is a problem that equipment costs and labor costs increase.
[0008]
Therefore, the present invention solves the above-described conventional problems, and enables the loading of loads such as pallets, racks, containers, etc. by itself, without increasing facility costs and labor costs. It is an object of the present invention to provide a U-frame vehicle that can rationalize the installation area of the vehicle and that can perform the stacking work of these loads safely and efficiently.
[0009]
[Means for Solving the Problems]
Therefore, the U-frame vehicle according to the present invention includes a uniaxial tractor 1 and a U-shaped frame 2 constituting the vehicle body, and a low lift lifting device 3 is provided at a connecting portion between the uniaxial tractor 1 and the U-shaped frame 2, The vehicle body suspension device 4 is provided at the rear part of the frame 2, and the stopper body 7 is provided inside the front part of the U-shaped frame 2, and loading is performed at a total of four locations on both the front and rear side parts of the U-shaped frame 2. 18 front sides and it shall equipped with high head elevating device 8 having a lift frame 21 fitted with a rear side portions engaging body 20 total that four engaging portions 19 provided at the engaging and detachably in the After the U-frame vehicle is moved backward so that the load 18 is brought into contact with the stopper body 7 of the U-shaped frame 2, the U-shaped frame 2 is lowered to the lowered position by the low lift lifting device 3 and the vehicle suspension device 4. Then, the engaging body 20 is protruded to engage the engaging portion 20 and the engaging portion 19 of the load 18, and the U-shaped frame 2 is moved to the traveling position by the low lift elevating device 3 and the vehicle suspension device 4. 18 is lifted from the ground so that it can be transported, and the load 18 is transported by the U-frame vehicle to the position just before the lower load 18, and the lift frame 21 is lifted by operating the high lift lifting device 8. The U-frame vehicle is moved backward until the lower load 18 comes into contact with the stopper body 7 of the U-shaped frame 2, and the conveyed load 18 is placed on the lower load 18 at a position where it can be stacked. In this state, the U-frame 2 is lowered to the lowered position by the low lift elevating device 3 and the vehicle suspension device 4, and the load 18 that has been transported is the lower load 18. It is assumed that was to be staked on.
[0010]
Further, the U-frame vehicle of the present invention comprises a uniaxial tractor 1, a U-shaped frame 2 constituting the vehicle body, and a cargo bed 2 'attached integrally to the U-shaped frame 2, and the uniaxial tractor 1 and the U-shaped frame. 2 is equipped with a low lift elevating device 3, a rear body portion of a U-shaped frame 2 is equipped with a vehicle body suspension device 4, a stopper body 7 is provided inside the U-shaped frame 2, and a U-shaped frame 2 A lift in which engagement bodies 19 that are detachable from engagement portions 19 provided at a total of four locations on both sides of the front and rear portions of the load 18 are attached to a total of four locations on both sides of the front portion and both sides of the rear portion. and those equipped with a high head elevating device 8 having a frame 21, said U-frame vehicle is backward, after arranged to abut the load 18 to the stopper member 7 of the U-shaped frame 2, U-shaped frame Is lowered by the low lift elevating device 3 and the vehicle suspension device 4, and the engaging body 20 is protruded to engage the engaging body 20 and the engaging portion 19 of the load 18, thereby making the U-shaped frame 2 low. The lifting device 3 and the vehicle suspension device 4 are brought to the traveling position, the load 18 is lifted from the ground and can be transported, and the load 18 is transported by the U-frame vehicle to just before the lower load 18, and the high lift lifting device 8, the lift frame 21 is raised, and in this state, the U-frame vehicle is moved backward until the lower load 18 abuts against the stopper body 7 of the U-shaped frame 2, and the conveyed load 18 becomes the lower stage. In this state, the U-shaped frame 2 is moved to a lowered position by the low lift lifting device 3 and the vehicle suspension device 4. In lowered, it is assumed that the allow staked on the load 18 that the cargo 18 has been conveyed the lower stage.
[0011]
The U-frame vehicle according to the present invention includes a uniaxial tractor 1, a U-shaped frame 2 constituting the vehicle body, and an inner frame 5 which is separately attached to the U-shaped frame 2 and serves as a loading platform. 2 and the inner frame 5 are equipped with a low lift elevating device 6, further provided with a stopper body 7 inside the front portion of the inner frame 5, and a total of four on both the front and rear sides of the U-shaped frame 2. At the location, a high-lift lifting device 8 having a lift frame 21 to which engagement portions 19 provided at a total of four locations on both the front and rear sides of the load 18 and an engagement body 20 that can be freely attached and detached is installed. and things, the U frame of the vehicle is backward, after arranged to abut the load 18 to the stopper member 7 of the U-shaped frame 2, low head lifting apparatus U-shaped frame 2 The engaging body 20 is protruded by engaging the engaging body 20 and the engaging portion 19 of the load 18, the U-shaped frame 2 is moved to the traveling position by the low lift elevating device 3, and the load 18 is The load 18 is brought into a state where it can be lifted from the ground, and the load 18 is transferred by the U-frame vehicle to a position immediately before the load 18 that is the lower stage, and the lift frame 21 is raised by operating the high lift elevating device 8. The U-frame vehicle is moved backward until the load 18 to be abutted against the stopper body 7 of the U-shaped frame 2, the transported load 18 is brought into a position where it can be stacked on the lower load 18, and in this state The U-frame 2 is lowered to the lowered position by the low lift lifting device 3 so that the conveyed load 18 can be stacked on the lower load 18. It is assumed was.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a U-frame vehicle according to the present invention will be described below in detail with reference to the drawings.
[0013]
The U-frame vehicle according to the present invention is a vehicle in which the loading platform as shown in FIGS. 1 to 3 is omitted, or the vehicle body and loading platform as shown in FIGS. 4 and 5 are integrated, and the vehicle body and loading platform are combined. The vehicle can be moved up and down, or the vehicle body and the loading platform as shown in FIGS. 6 and 7 can be separated and only the loading platform can be moved up and down.
[0014]
The U-frame vehicle in which the loading platform shown in FIGS. 1 to 3 is omitted includes a uniaxial tractor 1 and a U-shaped frame 2 constituting the vehicle body. The lifting and lowering device 3 and the vehicle body suspension device 4 installed at the rear of the U-shaped frame 2 allow the U-shaped frame 2 to be raised and lowered at a low head.
[0015]
Furthermore, in the U-frame vehicle in which the vehicle body and the loading platform are integrated as shown in FIGS. 4 and 5, the uniaxial tractor 1, the U-shaped frame 2 constituting the vehicle body, and the U-shaped frame 2 are integrally attached. And a low lift lifting device 3 provided at the connecting portion of the uniaxial tractor 1 and the U-shaped frame 2 and a vehicle suspension device 4 provided at the rear of the U-shaped frame 2 to reduce the lift of the loading platform 2 '. It can move up and down freely.
[0016]
In addition, in the U frame vehicle in which the vehicle body and the loading platform are separated as shown in FIGS. 6 and 7, the uniaxial tractor 1, the U frame 2 constituting the vehicle body, and the U frame 2 are separated from each other. The inner frame 5 is attached and serves as a loading platform, and the lower lift of the inner frame 5 is freely raised and lowered by a low lift lifting device 6 provided between the U-shaped frame 2 and the inner frame 5.
[0017]
In any U-frame vehicle, the stopper body 7 is provided inside the front portion of the U-shaped frame 2 or the inner frame 5, and the height of the U-shaped frame 2 is elevated at a total of four locations on both the front side and the rear side. It is assumed that the lift device 8 is equipped.
[0018]
The low lift lifting device 3 includes a rear upper part 1a of the uniaxial tractor 1, a front upper part 2a of the U-shaped frame 2, a rear lower part 1b of the uniaxial tractor 1 and a front lower part 2b of the U-shaped frame 2 by link rods 9, 10, respectively. The hydraulic cylinder 11 is attached to the rear intermediate part 1c of the uniaxial tractor 1 and the front upper part 2a of the U-shaped frame 2 in a coupled manner.
[0019]
The vehicle body suspension device 4 is installed in a wheel house 12 at the rear of the U-shaped frame 2, and wheels 14, 14 are attached to brackets 13, 13 that are rotatably attached to the front lower part and the rear lower part of the wheel house 12, respectively. Further, the hydraulic cylinders 15 are attached to the upper ends of the brackets 13 and 13 and the front upper part and the rear upper part of the wheel house 12, respectively.
[0020]
The low lift lifting device 6 includes a lift cylinder 16 provided between a front portion of the U-shaped frame 2 and a front portion of the inner frame 5, a rear portion of the U-shaped frame 2, and a rear portion of the inner frame 5. The horizontal state of the inner frame 5 is maintained by the simultaneous operation of the lift cylinder 17 provided therebetween.
[0021]
As shown in FIGS. 8 to 10, the high lift elevating device 8 is engaged with and disengaged from the engagement portions 19 provided at a total of four locations on both the front side and the rear side of the load 18 such as a pallet, a rack, and a container. The lift frame 21 is provided with a free engagement body 20 attached thereto. The lift frame 21 is lifted by pushing up a chain 23 stretched between the lift frame 21 and a base frame 22 by a sprocket 25 attached to the tip of a rod 24 a of a hydraulic cylinder 24. In addition, this high head raising / lowering apparatus 8 can also omit the chain 23 and the sprocket 25 by employ | adopting the multistage cylinder provided with the required stroke in the cylinder 24. FIG. Further, the engaging body 20 is a rod-shaped body that is moved in and out by the rod 26a of the hydraulic cylinder 26 provided in the lift frame 21, but is a hook body or a lock body as shown in FIGS. You can also.
[0022]
In the embodiment shown in FIGS. 14 and 15, the load 18 is a sheet coil pallet, and is engaged as an engaging portion 19 from the outside to the inside at the upper part of the post 27 erected at the four corners of the pallet. A hole is provided.
[0023]
In the U-frame vehicle of the present invention configured as described above, in order to stack loads such as pallets, racks, containers, etc. using a U-frame vehicle in which the loading platform shown in FIGS. Do it.
[0024]
First, the U-frame vehicle according to the present invention is moved backward so that the load 18 is brought into contact with the stopper body 7 in the U-shaped frame 2, and then the U-shaped frame 2 is moved to the low lift lifting device 3 and the vehicle suspension device 4. Thus, the lowered position is obtained as shown in FIG. By doing so, the positions of the engagement body 20 that is made to enter and exit by the rod 26a of the hydraulic cylinder 26 provided in the lift frame 21 and the engagement portion 19 of the load 18 coincide. At this time, by engaging the engagement body 20 with the hydraulic cylinder 26, the engagement body 20 and the engagement portion 19 of the load 18 are engaged. In this state, when the U-shaped frame 2 is moved to the traveling position as shown in FIG. 9 by the low lift elevating device 3 and the vehicle suspension device 4, the load 18 is lifted from the ground and can be transported. Note that the reverse operation is performed when the cargo 18 is removed from the U-shaped frame 2.
[0025]
Next, the U-frame vehicle that has transported the load 18 in the state shown in FIG. 9 operates the hydraulic cylinder 24 of the high lift lifting device 8 as shown in FIG. If the frame 21 is raised and the U-frame vehicle is moved backward until the lower load 18 in this state comes into contact with the stopper body 7 in the U-shaped frame 2, the conveyed load 18 is transferred to the upper load 18. It is in a position where it can be stacked. Further, in this state, if the U-shaped frame 2 is lowered to the lowered position by the low lift lifting device 3 and the vehicle suspension device 4, the loaded cargo 18 is stacked on the lower load 18. In this case, the height of the lower load 18 is set such that the weight of the load 18 conveyed to the engagement body 20 is not applied. Further, this stacking operation does not lower the U-shaped frame 2 as described above, but operates the hydraulic cylinder 24 of the high lift lifting device 8 to move the lift frame 21 to the engaging body 20. It can also be performed by lowering to a position where no weight is applied.
[0026]
Then, the hydraulic cylinder 26 is actuated in the above-described state to remove it from the engaging portion 19 of the load 18 that has conveyed the engagement body 20, and the hydraulic cylinder 24 is actuated to lower the lift frame 21 to a position overlapping the base frame 22. Then, the U-frame vehicle is moved forward to be separated from these loads 18 and the U-frame vehicle is returned to the traveling position to complete the stacking.
[0027]
In addition, in the U frame vehicle in which the vehicle body and the loading platform shown in FIGS. 4 and 5 are integrated, or in the U frame vehicle in which the vehicle body and the loading platform are separated as shown in FIGS. When loading loads such as racks, containers, etc., it may be carried out in accordance with the case of loading these loads using a U-frame vehicle in which the loading platform as shown in FIGS. Alternatively, because the inner frame 5 picks up the stepped portion 28 and the like below the load 18 and transports the load 18, the loading platform 2 'or the inner frame 5 is lowered so as not to interfere with the lower load 18 during the stacking operation. I have to keep it. In addition, in this case, in the U-frame vehicle shown in FIGS. 4 and 5, the high lift elevating device 8 is also lowered together with the U-shaped frame 2, so that the lift of the high lift elevating device 8 needs to be further increased.
[0028]
【The invention's effect】
Since the U-frame vehicle of the present invention is configured as described above, it is possible to carry out loading of pallets, racks, containers, etc. by itself, and increase equipment costs and labor costs. As a result, the installation area of these loads can be rationalized, and the loading work of these loads can be performed safely and efficiently.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a U-frame vehicle according to the present invention.
2 is a side view showing a state where the U-shaped frame of the U-frame vehicle of the present invention shown in FIG. 1 is in a lowered position. FIG.
FIG. 3 is a plan view showing an embodiment of a U-frame vehicle according to the present invention.
FIG. 4 is a side view showing another embodiment of the U frame vehicle of the present invention.
FIG. 5 is a plan view of the U frame vehicle of the present invention shown in FIG. 4;
FIG. 6 is a side view showing still another embodiment of the U-frame vehicle of the present invention.
7 is a plan view of the U-frame vehicle of the present invention shown in FIG. 6. FIG.
FIG. 8 is an explanatory diagram when stacking loads with the U-frame vehicle of the present invention.
FIG. 9 is an explanatory diagram when stacking loads with the U-frame vehicle of the present invention.
FIG. 10 is an explanatory diagram when stacking loads with the U-frame vehicle of the present invention.
FIG. 11 is a side sectional view showing another example of the engaging body attached to the lift frame of the U-frame vehicle of the present invention.
FIG. 12 is a side sectional view showing still another example of the engaging body attached to the lift frame of the U-frame vehicle of the present invention.
13 is a plan view of the engaging body shown in FIG. 12. FIG.
FIG. 14 is a side view of loads stacked by the U frame vehicle of the present invention.
FIG. 15 is a front view of loads stacked by the U frame vehicle of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Uniaxial tractor 2 U-shaped frame 3 Low lift raising / lowering device 4 Car body suspension device 5 Inner frame 6 Low lift raising / lowering device 7 Stopper body 8 High lift raising / lowering device 18 Load 19 Engagement part 20 Engagement body 21 Lift frame

Claims (3)

It consists of a uniaxial tractor (1) and a U-shaped frame (2) that constitutes the vehicle body, and a low lift lifting device (3) is provided at the connecting part of the uniaxial tractor (1) and the U-shaped frame (2). The vehicle body suspension device (4) is mounted on the rear part of the frame (2), and a stopper body (7) is provided on the inner side of the front part of the U-shaped frame (2), and both sides of the front part of the U-shaped frame (2) and A lift in which engagement parts (19) and engagement parts (20) provided in a total of four places on both sides of the rear part and engagement parts (19) provided on a total of four places on both sides of the front part and rear part of the load (18) are attached. A U-frame vehicle equipped with a high head lifting device (8) having a frame (21) ;
After the U-frame vehicle is moved backward so that the load (18) is brought into contact with the stopper body (7) of the U-shaped frame (2), the U-shaped frame (2) is moved to the low lift lifting device (3). The vehicle body suspension device (4) is brought into the lowered position, and the engagement body (20) is protruded to engage the engagement body (20) with the engagement portion (19) of the load (18). (2) is moved to the traveling position by the low lift lifting device (3) and the vehicle suspension (4), and the load (18) is lifted from the ground so that it can be conveyed.
The load (18) is conveyed by the U-frame vehicle to just before the lower load (18), the high lift lifting device (8) is operated to lift the lift frame (21), and the lower frame is in this state. The U-frame vehicle is moved backward until the load (18) contacts the stopper body (7) of the U-shaped frame (2), and the conveyed load (18) can be stacked on the lower load (18). In this state, the U-shaped frame (2) is lowered to the lowered position by the low lift lifting device (3) and the vehicle suspension (4), and the loaded load (18) is lowered to the lower load (18). A U-frame vehicle that can be stacked on top . A uniaxial tractor (1), a U-shaped frame (2) constituting the vehicle body, and a loading platform (2 ') attached to the U-shaped frame (2) as a unit, the uniaxial tractor (1) and the U-shaped frame Equipped with a low lift lifting device (3) at the connecting part of (2), a vehicle suspension (4) at the rear of the U-shaped frame (2), and a stopper inside the front of the U-shaped frame (2) The body (7) is provided, and the U-shaped frame (2) is provided with a total of four locations on both the front and rear sides of the U-shaped frame (2), and a total of four locations on the front and both sides of the load (18). A U-frame vehicle equipped with a high-lift lifting device (8) having a lift frame (21) to which an engaging body (20) that can be freely engaged and disengaged with a joint portion (19) is provided .
After the U-frame vehicle is moved backward so that the load (18) is brought into contact with the stopper body (7) of the U-shaped frame (2), the U-shaped frame (2) is moved to the low lift lifting device (3). The vehicle body suspension device (4) is brought into the lowered position, and the engagement body (20) is protruded to engage the engagement body (20) with the engagement portion (19) of the load (18). (2) is moved to the traveling position by the low lift lifting device (3) and the vehicle suspension (4), and the load (18) is lifted from the ground so that it can be conveyed.
The load (18) is conveyed by the U-frame vehicle to just before the lower load (18), the high lift lifting device (8) is operated to lift the lift frame (21), and the lower frame is in this state. The U-frame vehicle is moved backward until the load (18) contacts the stopper body (7) of the U-shaped frame (2), and the conveyed load (18) can be stacked on the lower load (18). In this state, the U-shaped frame (2) is lowered to the lowered position by the low lift lifting device (3) and the vehicle suspension (4), and the loaded load (18) is lowered to the lower load (18). A U-frame vehicle that can be stacked on top . A uniaxial tractor (1), a U-shaped frame (2) constituting the vehicle body, and an inner frame (5) which is attached to the U-shaped frame (2) as a separate body and serves as a loading platform, are provided. ) And the inner frame (5) are equipped with a low lift elevating device (6), and further provided with a stopper body (7) inside the front part of the inner frame (5) and in front of the U-shaped frame (2). Engagement body (20) which is detachable from engagement parts (19) provided at a total of four locations on both sides of the front and rear sides of the load (18) at a total of four locations on both sides of the front and rear sides. A U-frame vehicle equipped with a high lift lifting device (8) having a lift frame (21) to which
After the U-frame vehicle is moved backward so that the load (18) is brought into contact with the stopper body (7) of the U-shaped frame (2), the U-shaped frame (2) is moved to the low lift lifting device (3). The engagement body (20) and the load (18) are engaged with each other by causing the engagement body (20) to protrude, and the U-shaped frame (2) is moved up and down by a low lift. Use the device (3) to move to the running position, lift the load (18) from the ground,
The load (18) is conveyed by the U-frame vehicle to just before the lower load (18), the high lift lifting device (8) is operated to lift the lift frame (21), and the lower frame is in this state. The U-frame vehicle is moved backward until the load (18) contacts the stopper body (7) of the U-shaped frame (2), and the conveyed load (18) can be stacked on the lower load (18). In this state, the U-frame (2) can be lowered to the lowered position by the low lift lifting device (3), and the conveyed load (18) can be stacked on the lower load (18). A U-frame vehicle characterized by being configured as described above .

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