JP2001058797A - Industrial vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an industrial vehicle allowing the use of an aid apparatus to facilitate loading of objects on a pallet, in particular suitably used for transporting heavy vegetables. SOLUTION: An industrial vehicle such as a fork lift 10 includes a supporting arm 24 to support an aid apparatus 22 to be used when objects 32 are loaded on a pallet 46 supported by a fork, wherein the arm 24 is mounted removably in such a way as rotatable in the horizontal direction substantially between over the pallet 46 and beside a machine table 14. This configuration allows the use of an aid apparatus such as a balancer, establishment of the working efficiency, and a reduction of the labor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an industrial vehicle such as a forklift suitable for a heavy vegetable transporting work vehicle.
The present invention relates to means for enabling use of auxiliary equipment such as a balancer when loading cargo on a pallet.

[0002]

2. Description of the Related Art Harvesting of open vegetables such as onions, cabbage, and tomatoes is performed by packing cut and prepared vegetables in a storage box such as a cardboard box or a container (plastic container) in a field (field). In many cases, it is carried out outside and loaded on a truck bed. In this work, almost all processes are manual work, and the storage box filled with vegetables may exceed 10 kg in weight, so that there is a problem that a labor burden is large and work efficiency is poor.

[0003] Various measures have been considered to address such problems, but the transportation of storage boxes containing vegetables has been assessed by the Research Institute for the Promotion of Specified Industrial Technology, which is a shell organization of the Ministry of Agriculture, Forestry and Fisheries. "Heavy vegetable transporter" suitable for
An industrial vehicle referred to as an industrial vehicle has been developed. A typical four-wheel drive small forklift capable of traveling on uneven terrain such as a field is known as a typical example of a heavy vegetable transporting work vehicle.

When the above-mentioned work is performed using such a small forklift, a large number of storage boxes containing vegetables arranged in a field are picked up by the forklift. That is, while one person operates the forklift while the pallet is supported by the fork of the forklift,
Another person lifts the storage boxes one by one and stacks them on the pallet. Thereafter, the forklift is moved to the outside of the field, and the lift box is operated to transfer the storage boxes together with the pallets to the truck bed.

[0005]

With the introduction of the heavy-duty vegetable carrier such as a small forklift as described above, the labor of harvesting vegetables is greatly reduced. However, in the past, the loading of the storage box on the pallet was performed manually, not by a mechanical device. Therefore, depending on the number of storage boxes and the weight of the contents, a great burden was imposed on the operator. May be applied. This is a problem common to not only the vegetable harvesting operation but also other cargo handling operations having a similar operation form.

Accordingly, an object of the present invention is to provide an industrial vehicle which can use auxiliary equipment for facilitating the work of loading cargo on a pallet, particularly an industrial vehicle suitable for a heavy vegetable transporting vehicle. It is in.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to an auxiliary vehicle which can be used when loading cargo on a pallet supported by a fork in an industrial vehicle having a forklift function. A support arm for supporting equipment, the support arm being detachably attached so as to be able to rotate in a substantially horizontal direction between an upper position of the pallet and a side position of a machine base. Features.

In this configuration, it is possible to use auxiliary equipment for stowage, for example, a lifting device such as a balancer or a hoist, between the lateral position of the machine base and the upper position of the pallet, thereby improving work efficiency. And labor can be reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a forklift 10 to which the present invention is applied. The illustrated forklift 10 can be adapted as a “heavy vegetable transporting work vehicle” for safety assessment by the Biological Specific Industrial Technology Research Promotion Organization. That is, the forklift 10 is reduced in size and weight, and employs a four-wheel drive system so that the forklift 10 can run stably on uneven ground or muddy ground such as a field. The four-wheel drive system is of a type in which a hydraulic motor (not shown) connected to each wheel 12 is hydraulically controlled, and has a differential lock mechanism that does not run idle even if one wheel floats. In addition, the minimum ground clearance of the machine base 14 and the minimum ground clearance of the mast 16 are set higher than those of a normal forklift, so that the ridges in the field can run through. Further, in transporting the harvested vegetables, it is sufficient if the cargo can be lifted up to the truck bed.
Reference numeral 6 denotes a fixed type having only a pair of left and right sides. Therefore, the maximum lift of the forklift 10 is a value when the lift bracket 18 supporting the fork (not shown) reaches the upper end of the mast 16. In addition, this mast 16
The front pillar of the head guard 20 is also used to reduce the weight of the vehicle.

Further, in the illustrated embodiment, a spring-type balancer 22 for facilitating lifting of cargo is used as an auxiliary device for the loading operation, and a support arm 24 for supporting the balancer 22 is provided with a forklift. 10. Here, the spring-type balancer 22 is formed by winding a wire 28 around a spring-loaded reel (not shown) in a case 26, and applies a pulling force to the wire 28 by a spring force to apply a tension to the tip of the wire 28. The purpose is to reduce the weight of the suspended cargo. The illustrated balancer 22 is provided with a handle 30 for operating a wire at the tip of a wire 28, and a container 32 as a cargo.
Has two hooks 36 for being hooked on the handle hole 34 when handling.

The support arm 24 is a long rod-like or plate-like body, and has a cylindrical portion 38 formed at one end by being bent substantially at a right angle. The cylindrical portion 38 is inserted into a through hole of a mounting base 40 fixed to the upper end of at least one mast 16 by welding or bolts, so that the support arm 24 is detachably attached to the forklift 10. It has become. Although not shown, in order to prevent the support arm 24 from dropping off from the mounting base 40 during traveling of the forklift 10, a retaining pin may be removably inserted into a small hole at the tip of the cylindrical portion 38. It is suitable.

The axis of the through hole of the mounting base 40 is oriented substantially vertically when the forklift 10 is placed on a horizontal plane. A flange 42 having an outer diameter larger than the inner diameter of the through hole of the mounting base 40 is provided on the outer peripheral surface of the upper portion of the cylindrical portion 38 so as to protrude. Therefore, the horizontal portion of the support arm 24 is rotatable about a through hole of the mounting base 40 in a horizontal plane having a certain height. It is preferable that the range of rotation of the horizontal portion 44 of the support arm 24 can cover almost the entire area of the pallet 46 supported by the fork from the side of the forklift 10. For this reason, the positions of the mounting base 40 and the flange 42 are determined so that the horizontal portion 44 of the support arm 24 is higher than the upper end of the mast 16 so that the support arm 24 does not interfere with the mast 16. The length of the horizontal portion 44 of the support arm 24 is preferably longer than one side of the pallet 46.

In the horizontal portion 44 of the support arm 24, a plurality of small holes 48 are formed at appropriate intervals. In the illustrated embodiment, the small hole 48 is dimensioned so that the suspension hook 50 of the balancer 22 which is an auxiliary device for the stowage work can be hooked.
2 may be suspended.

Next, a container 32 containing a large number of harvested vegetables arranged side by side in the field is placed in the forklift 10 having the above-described configuration.
The case of transporting by using will be described.

First, the balancer 22 is suspended from one of the small holes 48 of the support arm 24, and the pallet 46 is supported by a fork. Then, the forklift 10 is operated, and when the container 32 to be handled is disposed below the support arm 24 extending to the side of the machine base 14, the forklift 10 is stopped. Next, a worker other than the driver stretches the wire 28 of the balancer 22 with the handle 30, and hooks the hook 36 at the tip of the wire 28 into the handle hole 34 of the container 32. Wire 28 of balancer 22
Is subjected to a tensile force by the built-in spring,
The container 32 can be lifted with a light force and can be maintained in the raised position.

Thereafter, when the user pulls the container 32 or the handle 30 of the balancer 22 toward the pallet 46,
The support arm 24 also rotates in the horizontal direction about the column 38 at the end, and the container 32 is disposed above the pallet 46. When a downward force is applied to the container 46, the wire 28 is pulled out from the balancer 22, and the container 32 is moved to the upper surface of the pallet 46 or the pallet 4.
6 is placed on another container 32 already placed on it.
At this time, the force applied to the container 32 to be stowed may be extremely small.

After the containers 32 are stacked, the hooks 36 are removed from the containers 32, the forklift 10 is moved to handle the next container 32, and the above operation is repeated. If the suspension position of the balancer 22 and the position on the pallet 46 where the container 32 should be placed become largely displaced during this operation regardless of the rotation position of the support arm 24, the balancer 22 is appropriately moved. What is necessary is just to change the small hole 48 to suspend.

As described above, the required number of containers 32
Is loaded on the pallet 46, the forklift 10 is operated to move out of the field, and the pallet 46 is transferred to the truck bed together with the container 32, thereby completing the operation. In this operation, since the balancer 22 can be used, the labor for handling the heavy container 32 is greatly reduced.

When the balancer 22 is not used, the support arm 24 may be detached from the mounting base 40. However, when the balancer 22 is used frequently, a fixing tool 52 such as a clip provided on the head guard 20 temporarily removes the support arm 24. It is preferable to fix it mechanically. Also, if the mounting base 40 is provided not only on one side but also on both sides of the mast 16, the support arm 24
The work efficiency can be improved because the load on the opposite side can be handled simply by replacing the load.

Although the preferred embodiments of the present invention have been described in detail, it goes without saying that the present invention is not limited to the above embodiments.

For example, in the above embodiment, the support arm 2
4, the suspension position of the balancer 22 was adjusted by selecting one of the small holes 48, but the position of the balancer 22 can be adjusted even if the support arm 24 can be telescopically expanded and contracted. It is. Further, the auxiliary device is not limited to the balancer 22, and may be a hoist. Furthermore, the applied industrial vehicle is not limited to the forklift 10 and may be another type of industrial vehicle capable of performing pallet work, and the working mode is not limited to the vegetable harvesting and transporting work.

[0023]

As described above, according to the present invention, it is possible to use auxiliary equipment for loading cargo such as a container for storing vegetables on a pallet. Is greatly reduced, and work efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a forklift to which the present invention is applied.

[Explanation of symbols]

10 forklift (industrial vehicle), 16 mast, 2
0: head guard, 22: balancer (auxiliary equipment), 24
... Support arm, 32 ... Container (cargo), 40 ... Mounting base, 46 ... Pallet.

Claims (1)

[Claims] 1. An industrial vehicle having a forklift function, comprising: a support arm for supporting an auxiliary device that can be used when loading cargo on a pallet supported by a fork; An industrial vehicle, comprising: the support arm detachably attached so as to be able to rotate in a substantially horizontal direction between a side position of a machine base.