JP2544799Y2 - Forklift truck car crane equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hook for stopping a lifting rope of a crane device, which is a kind of attachment of a forklift truck.

[0002]

2. Description of the Related Art FIG. 4 is an external side view of a forklift truck A in which a crane device C is mounted on a mast B. Reference numeral 1 denotes an arm. FIG. 5 is a side view of a main part of a tip portion of an arm 1 of a conventional crane device, in which a hook 2 for preventing a rope R from coming off is attached to the arm 1, and the hook 2 is opened and closed by a hydraulically or pneumatically operated cylinder 3. It is supposed to.
The state in which the hook 2 is open is indicated by a two-dot chain line.

[0003]

In the conventional crane apparatus described above, if the rope is not held down by hand when closing the hook, the rope may come off before the hook is completely closed. Is usually held by hand, but at this time, there is a risk that the hand or finger holding the rope may be pinched between the hook and the arm, so care must be taken There was a problem that the efficiency was reduced.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a hook for preventing a drop of a lifting rope of a crane device of a forklift truck is opened and closed when the rope is attached or detached. In a crane device having a structure as described above, a stopper provided with a spring which can be opened and closed by being easily pushed by hand is provided at the tip of the arm of the crane device, so that the stopper can be pushed by hand and the rope can be easily inserted. It is possible to release the rope by opening the hook.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment based on the present invention, in which a projection 5 is provided at the tip of an arm 4, a spring 8 is provided on the projection 5 between a stopper plate 6 and the arm 4, and a tip of a hook 9 is provided. 9 ₁ the stopper plate 6 is adapted to abut. The rope R is manually pushed against the stopper plate 6 so that the tip 9 ₁ of the hook 9 and the arm 4
It is easy to insert the hook R when the rope R is removed, so that the work efficiency is improved and the safety is also improved.

FIG. 2 shows a second embodiment based on the present invention, and FIG. 2 (b) is a view taken in the direction of arrow D in FIG. 2 (a).
In the figure, a forked protrusion 22 is provided at the tip of an arm 21, and a stopper 23 is rotatably attached to the protrusion 22 via a pin 24. And the stopper 23 is a spring 25
The rope R may be inserted from a gap generated between the hook 26 and the tip 26 ₁ of the hook 26. To remove the rope R, the hook 26 may be opened with the cylinder 28. The plate 27 is provided so that the stopper 23 does not rotate excessively when the hook 26 is opened.

FIG. 3 shows a third embodiment based on the present invention, in which a projection 11 is provided at the tip of an arm 10 and the tip of a rod 16 of a cylinder 12 has a cylindrical shape.
There is a stopper 14 that slides in the cylinder 13, and the stopper 14 is constantly pressed against the protrusion 11 by a spring 15 present in the cylinder 13, and the rope R is pressed by pushing the stopper 14 into the cylinder 13 by hand. , Arm 10
And the rod 16 of the cylinder 12 can be easily inserted. When the rope R is removed, the rod 16 of the cylinder 12 may be contracted, so that the work efficiency is improved, and the safety is also improved. Things.

[0008]

The present invention has been described in detail above. In a crane device having a structure in which a hook for preventing a fall of a lifting rope of a crane device of a forklift truck is opened and closed when the rope is attached or detached, By lightly pressing the stopper provided at the tip of the arm of the crane device by hand, it becomes possible to easily insert the rope. To play.

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment based on the present invention.

FIG. 2A is a side view of a second embodiment based on the present invention. (B) is a view on arrow D in (A) of FIG. 2.

FIG. 3 is a side view of a third embodiment based on the present invention.

FIG. 4 is an external side view of a forklift truck in which a crane device is mounted on a mast.

FIG. 5 is a side view of a main part of a tip end of an arm of a conventional crane device.

[Explanation of symbols]

 4 Arm 6 Stopper 8 Spring 9 Hook 10 Arm 14 Stopper 15 Spring 21 Arm 23 Stopper 25 Spring 26 Hook

Claims (1)

(57) [Scope of request for utility model registration] 1. A crane device having a structure in which a hook for preventing a dropping of a lifting rope or the like of a crane device of a forklift truck is opened and closed when the rope is attached or detached. A crane device provided with a stopper having a spring which can be opened and closed by pressing the spring.