JPH07215656A - Hanging jig for crane sling work - Google Patents

Abstract

(57) [Summary] [Purpose] In the crane slinging work for transporting heavy goods, ensuring safety as a complete no-touch work with the goods and allowing one person to work [Structure] By the crane 1, Position the hook 3 slightly above the load 5 on the table 8 and then hook 3
Are sequentially hooked on the transported object 5. Then, the crane 1 is pulled up. At the time of rising, the hook 3 is pulled upward by the spring 6, so that the hook 3 does not come off while being caught by a conveyed object, and therefore the worker does not need to support the hook 3. After the wire 2 is taut, the crane 1 is operated to carry the load 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention not only enables complete no-touch work in which a worker does not come into contact with a transported object in slinging work using a crane, but also in transporting a heavy object. The present invention relates to a hanging jig for crane slinging work, which enables one operator to perform crane work.

[0002]

2. Description of the Related Art A predetermined slinging jig for slinging has been conventionally used in the work of transporting heavy objects such as steel plates by a crane. FIG. 7 is a perspective view showing a conventional slinging operation. As shown in FIG. 7, the conventional hanging jig includes a wire 2 that can be suspended from a crane 1 and a hook 3 provided at the lower end of the wire 2. In such a conventional hanging jig, it is necessary for two slingers 4a to support the hooks 3 arranged on both sides of the transported object 5 on the stand 8 by hand when slinging the crane. If the operator 4b is added, the crane slinging work requires at least three workers, and at the same time, there is always a risk that the slinger 4a may be injured due to the fall of the transported object 5 or the like.

[0003]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems and to enable safety in the crane slinging work by allowing a complete no-touch work in which the worker does not come into contact with the transported object. (EN) It is possible to provide a hanging jig for a crane slinging work, which is secured and enables a crane handling person to carry out a single slinging work even in the crane slinging work for transporting heavy objects.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to a wire that can be suspended at the lower end of a crane and for hooking a load.
A hook provided at a lower end of the wire and an elastic body such as a spring or rubber having an upper end and a lower end fixed to the wire, and the wire is held in a loose state by the elastic body. It has characteristics.

[0005]

The wire is always kept in a slack state by the action of the elastic body, for example, the spring, until it is hooked on the transported object. With the crane raised to an appropriate height,
When hooking a hook on a load, the spring is pulled and stretches, so the hook cannot be removed from the load. Furthermore, when the wire is pulled up, the loose wire becomes taut, and the transported object is lifted. The spring is attached by fixing its upper and lower ends to the wire. The spring may be attached at either end of the entire wire length or a part of the wire, depending on the weight, size, working environment, etc. of the transported object.

The same effect can be obtained by using rubber as the elastic body for slackening the wire instead of the spring.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described based on the embodiments shown in the drawings.

[Embodiment 1] FIG. 1 is a front view showing a suspending jig using a spring according to a first embodiment of the present invention, and FIGS. 2, 3 and 4 are front views for explaining a slinging work situation. 5
Is a perspective view thereof.

As shown in FIGS. 1 to 5, the hanging jig A of the present invention comprises a wire 2, a hook 3, and a spring 6. The upper end of the wire 2 is formed in an annular shape and is suspended from the crane 1 via this annular portion. The lower end of the wire 2 is also formed in an annular shape, and the hook 3 for hooking the transported article 5 is attached via the annular portion of the lower end of the wire 2. The arrangement position of the spring 6 is the lower part of the wire 2, and the spring 6 is attached by fixing its upper end and lower end to the wire 2 via a spring fixture 9.
In the present embodiment, two hanging jigs A shown in FIG. 1 are used, but it goes without saying that the number of hanging jigs A may be increased if necessary, such as the weight of a transported object.

As shown in FIGS. 1 and 2, the wire 2
Is held in a slack state by the spring 6 in a normal state when nothing is lifted. Meanwhile, hook 3
When the crane 1 is hooked on the transported object 5 and the crane 1 is raised, the wire 2 in the taut state and the spring 6 in the extended state are parallel to each other, as shown in FIGS. 3 and 4.

Next, the procedure of the crane slinging work according to this embodiment will be described below.

The crane 3 positions the hook 3 slightly above the load 5 on the stand 8, and then hooks the hook 3 on the load 5 sequentially (see FIGS. 2 and 5).

After hooking each hook 3 on the transported object 5, the crane 1 is pulled up so that the wire 2 is taut and the transported object is lifted, and the crane 1 is operated to transport (FIG. 3, FIG. (See FIG. 4).

As described above, when the hook is hooked on the object to be conveyed and then the crane is raised, the hook is pulled by the spring and does not come off from the object being hooked. No need to support. The stretched spring is parallel to the wire and does not interfere with the work. Therefore, it is possible to perform a complete no-touch operation on the transported object. Since the above-mentioned work can be operated by one crane handling person, one person can work in the crane slinging work for transporting heavy objects, which saves manpower.

[Embodiment 2] FIG. 6 is a front view showing a hanging jig according to a second embodiment of the present invention using rubber. As shown in FIG. 6, the hanging jig B of the present invention is different from the first embodiment in that rubber is used instead of the spring.
The upper end of the rubber 7 is fixed to the upper end of the entire length of the wire 2 and the lower end of the rubber 7 is fixed to the lower end of the entire length of the wire 2 via a rubber fixing tool 10. As shown in FIG. 6, the wire 2 is held in a slack state by the rubber 7 in a normal state in a state where no wire is lifted up, while when the hook 3 is hooked on the article to be conveyed 5, the wire 2 becomes a pin. The stretched wire 2 and the stretched rubber 7 are parallel to each other. The operation and work procedure are the same as in the first embodiment.

[0016]

As described above, according to the present invention, in a hanging jig composed of a hook and a wire used for crane slinging work, by attaching an elastic body such as a spring or rubber to the wire, the slinging is completed. Not-touch operation is possible, and the potential risk of injury to the slinging person due to the fall of the transported object can be completely eliminated, and also one-person crane operation is possible when transporting heavy objects, contributing to labor saving. Therefore, the working efficiency of the crane can be remarkably increased, and thus the industrially useful effect is brought about.

[Brief description of drawings]

FIG. 1 is a front view showing a hanging jig according to a first embodiment of the present invention using a spring.

FIG. 2 is a front view for explaining a slinging work situation.

FIG. 3 is a front view for explaining a slinging work situation.

FIG. 4 is a front view for explaining a slinging work situation.

FIG. 5 is a perspective view for explaining a slinging work situation.

FIG. 6 is a front view showing a hanging jig according to a second embodiment of the present invention using rubber.

FIG. 7 is a perspective view showing a conventional slinging operation.

[Explanation of symbols]

 A, B Crane sling hanging jig 1 Crane 2 Wire 3 Hook 4a Slipper 4b Crane handling person 5 Transported goods 6 Spring 7 Rubber 8 Stand 9 Spring fixture 10 Rubber fixture

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Gunki Saito 1-2-2 Marunouchi, Chiyoda-ku, Tokyo Japan Steel Pipe Co., Ltd. (72) Inventor Mitsuo Kodama 1-2-1 Marunouchi, Chiyoda-ku, Tokyo Date Inside the Steel Pipe Co., Ltd. (72) Inventor Ryuichi Tanaka 1-2-2 Marunouchi, Chiyoda-ku, Tokyo Japan Steel Pipe Inside Co., Ltd. (72) Naoyuki Kaneko 1-21-2 Marunouchi, Chiyoda-ku, Tokyo Co., Ltd. (72) Inventor Yukio Tanaka 1-2-2 Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Tube Co., Ltd. (72) Inventor Akihiko Nagayama 1-2-2 Marunouchi, Chiyoda-ku, Tokyo Nihonkansen Co., Ltd. (72) Inventor Goro Shimo In 1-2 1-2 Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Pipe Co., Ltd.

Claims (3)

[Claims] 1. A wire that can be suspended at the lower end of a crane,
The hook is provided at the lower end of the wire for hooking a load, and the elastic body having the upper end and the lower end fixed to the wire. The wire is held in a loose state by the elastic body. A hanging jig for crane slinging work. 2. The hanging jig according to claim 1, wherein the elastic body is a spring. 3. The hanging jig according to claim 1, wherein the elastic body is rubber.