JP2641116B2 - Cargo handling vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo handling vehicle having a reach function and a picking function.

[0002]

2. Description of the Related Art Conventionally, reach forklifts are often used for cargo handling in warehouses because they can work efficiently in narrow passages as compared with counterbalance type forklifts having a counterweight at the rear of a vehicle body.
Since the driver's seat does not rise, there is a drawback that picking work such as taking out a plurality of luggage stored at a high place on the shelf cannot be performed. On the other hand, order picking is suitable for picking work for removing a load from a high place because the driver's seat can move up and down and can be run with the driver's seat raised.

[0003]

However, in the conventional order picking, since the steering wheel is provided perpendicular to the traveling direction, it requires a skill to travel the vehicle body in a target direction. In the case of loading and unloading cargo on a pallet, there is no reach function, so it is necessary to move the vehicle back and forth and transfer the pallet to a shelf, etc.
There is a problem that cargo handling work like a reach forklift cannot be performed in a narrow passage.

[0004] Further, since it is designed on the premise of picking work, there is a problem that it is difficult to achieve a speed as in a reach forklift and the work efficiency is poor, due to the mounting position of the handle and the mounting position of the traveling lever. The present invention has been made to improve the above disadvantages.
It is an object of the present invention to provide a cargo handling vehicle having both a reach function and a picking function so as to improve the efficiency of cargo handling work.

[0005]

In order to achieve the above-mentioned object, the present invention provides a self-propelled vehicle body having a mast provided in the front part thereof so as to be movable back and forth. The main body is provided with a main column that can expand and contract in the vertical direction. This main column has a driver's seat provided with an operation system that controls the forward and backward movement of the mast, the vertical movement of the fork, the running control of the vehicle body, and the vertical movement of the driver's seat. It is attached.

[0006]

With the above structure, when the driver's seat is lowered, a reach function similar to that of a conventional reach forklift can be obtained, and by picking up the driver's seat, picking work at a high place can be easily performed.

[0007]

An embodiment of the present invention will be described in detail with reference to the drawings. In the figure, reference numeral 1 denotes a vehicle body that is capable of self-running by a front wheel 2 and a rear wheel 3. The front wheel 2 is provided at a lower front end side of a reach leg 1a projecting forward from both sides of the vehicle body 1, and the rear wheel 3 is provided at a rear portion of the vehicle body 1. It is provided in. The rear wheel 3 is composed of a drive wheel 3a driven by a battery 4 and a caster wheel 3b. The rear wheel 3 is capable of moving forward and backward and steering freely, and is capable of reaching forward and rearward between the reach legs 1a. Mast 5
The lower part is supported. The mast 5 includes an outer mast 5a and an inner mast 5b which is vertically expandable and contractible with respect to the outer mast 5a. A fork 7 is attached to the inner mast 5b via a roller support 6. In the drawing, reference numeral 8 denotes a backrest, and 9 denotes a tilt cylinder for tilting the fork 7.

On the other hand, the main body 1 has two main pillars 12 on both sides.
Is erected. These main columns 12 are composed of an outer main column 12a having a lower end fixed to the vehicle body 1, and an inner main column 12b supported to be vertically movable with respect to the outer main column 12a. A driver's seat 13 is mounted, and a grid-like head guard 14 is mounted between the upper ends of the inner main columns 12b so as to cover the upper part of the driver's seat 13. A lift cylinder 15 is provided between the head guard 14 and the vehicle body 1. The lift cylinder 15 allows the driver's seat 13 to move up and down. Operating lever 17 for controlling the front and rear movement of the mast 5 and tilt, a steering handle 18 for operating the vehicle body 1 and a forward / backward operating lever 19, a push button switch 20 for stopping the vertical movement of the driver's seat 13 and an arbitrary position, and A deadman brake 21 that can stop the vehicle body 1 at any height of the driver's seat 13 is provided.

Next, the operation will be described.
In loading cargo 23 placed on the pallet, the mast 5 is advanced to the pallet 22 with the driver's seat 13 lowered to the position shown in FIG.
And the pallet 22 is placed on the fork 7 so that the pallet can be unloaded in the same manner as the reach forklift using the reach function.

Next, when the luggage 23 on the pallet 22 is stored at a height of the shelf 24 or when the luggage 23 on the shelf 24 is picked, the driver's seat 13 is moved to a desired height by the lift cylinder 15 as shown in FIG. To raise. Then, the operator in the driver's seat 13 transfers the luggage 23 on the pallet 22 to the shelf 2
4 or a predetermined number of packages are picked from the shelf 24 and placed on the pallet 22. Also, if the height of the load 23 placed on the pallet 22 is increased as shown in FIG. 7, it becomes difficult to transfer the load 23. In this case, the fork 7 is lowered and the load 23 By maintaining the height at a level that allows easy transfer, the picking operation can be performed efficiently.

When the picking is completed, the driver's seat 13 is lowered to the position shown in FIG. 1, so that the cargo handling operation can be performed by the same operation as a normal reach forklift. 8 to 12 show another embodiment in which a hook 25 which can be freely inserted and removed from the front of the driver's seat 13 and a stopper 26 with which the hook 25 is engaged are provided on the inner mast 5b. By moving the driver's seat 13 up and down using the up and down movement, the lift cylinder 15
Is omitted. With the above configuration, when raising the driver's seat 13, the hook 25 is projected by an operation from the driver's seat 13, and the inner mast 5 is moved in this state.
By raising b, the driver's seat 13 can be raised to a desired height as shown in FIG. The cargo handling state is shown in FIGS. 11 and 12, respectively.

[0012]

According to the present invention, as described in detail above, when the driver's seat is lowered, a reach function similar to that of a conventional reach forklift is obtained, so that cargo handling can be performed efficiently even in a warehouse with a narrow passage. In addition, by raising the driver's seat, picking work can be performed easily and safely at high places on shelves. A single vehicle can efficiently perform reach and picking operations, and is a cargo handling vehicle that has a reach function and a picking function. It is economical because there is no need to arrange them individually.

[Brief description of the drawings]

FIG. 1 is a left side view of a cargo handling vehicle according to an embodiment of the present invention.

FIG. 2 is a rear view of the cargo handling vehicle according to one embodiment of the present invention.

FIG. 3 is a right side view of the cargo handling vehicle according to one embodiment of the present invention.

FIG. 4 is a sectional view taken along line AA of FIG.

FIG. 5 is a sectional view taken along line BB of FIG. 1;

FIG. 6 is an explanatory diagram of an operation of the cargo handling vehicle according to one embodiment of the present invention.

FIG. 7 is an explanatory diagram of the operation of the cargo handling vehicle according to one embodiment of the present invention.

FIG. 8 is a left side view of a cargo handling vehicle according to another embodiment of the present invention.

FIG. 9 is a rear view of a cargo handling vehicle according to another embodiment of the present invention.

FIG. 10 is a right side view of a cargo handling vehicle according to another embodiment of the present invention.

FIG. 11 is an operation explanatory view of a cargo handling vehicle according to another embodiment of the present invention.

FIG. 12 is an operation explanatory view of a cargo handling vehicle according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 body 5 mast 5b inner mast 7 fork 12 main pillar 13 driver's seat 15 lift cylinder

Claims (3)

(57) [Claims] 1. A mast 5 is provided at the front of a self-propelled body 1 so as to be movable back and forth, and a fork 7 is attached to the mast 5 so as to be movable up and down. The main column 12 is provided with a front-rear movement of the mast 6, a vertical movement of the fork 7, a traveling control of the vehicle body 1, and a driver's seat 13
Driver's seat 13 provided with an operation system for controlling the vertical movement of the vehicle
A cargo handling vehicle with a vehicle attached. 2. The cargo handling vehicle according to claim 1, wherein the driver's seat 13 is moved up and down by a lift cylinder 15. 3. The cargo handling vehicle according to claim 1, wherein the driver's seat 13 is moved up and down by using up and down of the inner mast 5b.