JP3325455B2 - Handle holding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a work holding device applied to a cargo handling vehicle such as a forklift truck and used for transporting a work such as a steel pipe.

[0002]

2. Description of the Related Art Conventionally, as this kind of object holding device,
For example, the one described in Japanese Utility Model Application Laid-Open No. 61-80798 is known. The handling object holding device includes a main body, left and right forks provided on the main body, a movable body provided so as to be able to move up and down linearly with respect to the main body, an arm provided on the movable body, and provided at a tip of the arm. And a holding cylinder capable of holding the object to be handled with the fork, and a holding cylinder for moving the movable body up and down with respect to the main body. Thus, in such a case, the object to be handled is scooped on the fork and the presser cylinder is operated. When the presser cylinder is operated, the movable body is moved up and down linearly with respect to the main body, and the arm and the presser body are lowered. When the presser body is lowered, the scooped object is held down by this and held between the fork, and the object is conveyed in the same state. Therefore, even if the cargo handling vehicle swings right and left depending on the condition of the road surface, the material to be handled can be safely transported without slipping and falling down on the fork.

[0003]

However, in such a device, the movable body and the arm are provided so that the presser body is moved up and down linearly, so that the structure is complicated and the cost is increased, and the weight is increased. There was a problem that the load became smaller and the load decreased. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in order to solve the problem. The object of the present invention is to provide a work holding device that aims to reduce costs and increase a load. To offer.

[0004]

The object holding device according to the present invention basically includes a main body, left and right forks provided on the main body, and left and right forks provided on the main body so as to be able to ascend around the longitudinal axis. The arm comprises left and right holding members extending forward from the ends of the arms and holding the object between the forks, and left and right holding cylinders for raising and lowering the holding members with respect to the main body. There is a characteristic in the thing.

[0005] When carrying the object to be handled, the object to be handled is scooped on the left and right forks, and the right and left holding cylinders are operated. When the presser cylinder is actuated, the left and right arms are lowered about the longitudinal axis with respect to the main body, and the left and right pressers are lowered. When the right and left holding bodies are lowered, the objects to be scooped are held down by these members and are held between the forks, and the objects to be handled are transported in the same state. When wholesaled items are handled, the procedure is performed in the reverse manner. Since the holding body is raised and lowered by providing the arm, the structure is simplified and the weight is reduced accordingly.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a work holding device of the present invention. FIG. 2 is a side view of FIG. 1. FIG. 3 is a perspective view showing a state in which a large-diameter object is pressed. FIG. 4 is a view similar to FIG. 3 showing a state in which a small-diameter object is pressed. The main part of the object holding device 1 includes a main body 2, a fork 3, an arm 4, a holding body 5, and a holding cylinder 6.

The main body 2 forms a basic part of the object holding device 1. In this example, the main body 2 has an upright rectangular plate shape, and although not shown, a mast device of a forklift as a cargo handling vehicle is provided. It is attached to the lifting body. Fork 3
Are left and right members provided on the main body 2. In this example, the main body 2 includes a horizontal piece 7 extending in the front-rear direction and a vertical piece 8 extending upward from the rear end of the horizontal piece 7. It is positioned so as to be able to move laterally by a suitable suspension means (not shown) so that it can be adjusted to an interval of 3 to 5 m. The arm 4 is provided on the main body 2 so as to be able to ascend around the front-rear axis 9. In this example, the arm 4 is located on the rear side of the main body 2, and the base end (inner end) of the arm 2 depends on the front-rear axis 9. , And the tip (outer end) is located laterally from the side end of the main body 2 so as to descend.

The holding body 5 is a left and right body extending from the tip of each arm 4 to the front side and capable of holding the object A between the arm 4 and the fork 3. The base end (rear end) is fixed to the tip end of the arm 4 so as to move up and down on the side of the fork 3. That is, it is parallel to the horizontal piece 7 of the fork 3 and has substantially the same length. The presser body 5 includes a claw body 10. The nail body 10 is a fork 3
It prevents forward movement of the upper handle A. In this example,
It has a larger diameter than the holding body 5 and has a disk shape, and is fixed to the front end (front end) of the holding body 5. The presser cylinder 6 is a right and left cylinder for raising and lowering each presser body 5 with respect to the main body 2. In this example,
It is interposed between the main body 2 and the holding body 5. That is, it is interposed between the bracket 12 provided on the upper part of the main body 2 via the substantially L-shaped support member 11 and the bracket 13 provided on the pressing body 5. In this example, the object A has an outer diameter of 400 to 1600 mmφ and a length of 35.8 to 50.7 m.
It is a long steel pipe.

Next, the operation will be described based on such a configuration. When carrying the object A, the longitudinal direction of the object A is oriented in the left-right direction, and the middle of the object A is scooped on the left and right forks 3 at right angles thereto, and the left and right holding cylinders 6 are extended. Is done. When the presser cylinder 6 is extended, the right and left arms 4 are lowered with respect to the main body 2 around the front-rear axis 9 and the right and left presser bodies 5 are lowered. When the right and left pressing bodies 5 are lowered, the articles A scooped up by them are held down and clamped between the forks 3, and the articles A are transported in the same state. FIG. 3 shows a large diameter (1600 m
FIG. 4 shows a state in which a single object A is held down by a small diameter (400 mmφ).
3 shows a state in which the object A is held down. Since the work A is held down by the right and left holding members 5 and held between the fork 3 and the forklift swings right and left depending on the road surface condition, the work A slides on the fork 3 sideways. The object A can be transported safely without falling.
If the object A on the fork 3 moves forward during transportation, the object A is prevented from dropping from the fork 3 by the claw body 10 provided at the tip of the holding body 5. . When unloading the handled item A, it is performed in the reverse manner as described above. The arm 4 is provided to raise and lower the presser body 5, so that the structure is simplified by that much,
Weight is reduced.

The arm 4 is provided on the rear side of the main body 2, so that the center of gravity of the device is located rearward accordingly.
The load capacity can be increased. The holding body 5 is a fork 3
Since the object A is moved up and down more laterally, the object A can be clamped between the presser body 5 and the edge of the fork 3 (the corner between the upper surface and the side surface), and the object A slides sideways. Can be reliably prevented. The presser cylinder 6 includes the main body 2 and the presser body 5.
The pressing body 5 can be directly operated, and quick and accurate pressing can be performed.

In the above example, the arm 4 is provided on the rear side of the main body 2, but is not limited to this, and may be provided on the front side of the main body 2, for example. In the above example, the pressing body 5 is provided with nothing on the outer periphery, but is not limited to this. For example, an elastic body such as rubber may be attached to the outer periphery. In this way, the frictional resistance between the holding body 5 and the work A increases, so that the sliding between them is prevented and the work A is prevented from being damaged. In the above example, the presser cylinder 6 is interposed between the main body 2 and the presser body 5, but is not limited to this, and may be interposed between the main body 2 and the arm 4, for example. The handle A has a circular cross section in the above example, but is not limited thereto, and may have, for example, a square shape.

In the above example, the object A was a steel pipe.
The present invention is not limited to this, and may be, for example, a tapered one such as a telephone pole, a stepped one having a different diameter, an annular one wound with a steel wire or a steel plate, or the like. When the object to be handled has a tapered shape or a stepped diameter, the arm 4, the holding body 5, and the holding cylinder 6 are provided on the left and right sides. Can be sandwiched between two points having different outer diameters of the handle A. When the work A is annular, the fork 3 is inserted into the center hole of the work A, and then the work A is clamped between the fork 3 by the pressing body 5 or the center of the work A is inserted. After inserting the fork 3 and the presser body 5 into the hole, the fork 3
The object A can be held by separating the presser body 5 from the object. The cargo handling device is a forklift in the above example, but is not limited thereto, and may be, for example, a wheel loader.

[0013]

As described above, according to the present invention, as described above,
The following excellent effects can be obtained. (1) Consisting of a main body, a fork, an arm, a presser body, and a presser cylinder. In particular, the right and left presser bodies are provided via the left and right arms so as to be able to elevate and lower around the longitudinal axis with respect to the main body. Since the right and left holding cylinders for raising and lowering are provided, it is possible to reduce the cost and increase the loading load. (2) Since the arm, the holding body, and the holding cylinder are provided on the left and right so as to move individually, for example, even if the object to be handled has a tapered shape, a stepped different diameter shape, or an annular shape, it can be reliably held down.

[Brief description of the drawings]

FIG. 1 is a front view showing a work holding device of the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a perspective view showing a state in which a large-diameter object is pressed.

FIG. 4 is a view similar to FIG. 3, showing a state in which a small-diameter object is pressed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Handling object holding device, 2 ... Main body, 3 ... Fork, 4 ... Arm, 5 ... Holding body, 6 ... Holding cylinder, 7 ... Horizontal piece, 8 ...
Vertical piece, 9: front and rear axis, 10: claw body, 11: support material, 1
2, 13 ... bracket, A ... handle.

Claims (1)

(57) [Claims] 1. A main body, and water provided on the main body in a front-rear direction.
From a flat horizontal piece and a vertical piece that extends upward from the rear end
Left and right fork and, right and left provided to be elevation in longitudinal axis around the body arm and, parallel Four <br/> click and horizontal piece of the fork exhibits a rod from the tip of each arm extends in the front comprising Left and right holding bodies that can hold the object between the horizontal pieces ,
A work holding device characterized by comprising left and right holding cylinders for raising and lowering each holding member with respect to a main body.