JPH08748A - Hook for safety belt - Google Patents

Abstract

PURPOSE:To provide a hook for a safety belt, which does not interfere with work during operation and contains a shock absorber with an excellent weatherability. CONSTITUTION:A box-like case 2 is connected to a hook-like part 1. A shock absorber 4 formed by overlapping in a specified shape and sewing in multiple lines one end of a belt 3, is connected to the bottom end of the hook-like part 1 projecting inside the case 2 and is stored in the case 2. The tip of an opening and closing cap 5 pivotally attached to the terminal end of the case, touches the inside of the tip of the hook-like part 1 and forms the space of the hook like part 1. A safety cap 6 pivotally mounted on the basic end of the case-has a mechanism wherein the safety cap 6 touches the opening and closing cap 5 to prevent the rotation thereof. Since the shock absorber 4 is stored inside the case in this manner, a hook for a safety belt not interfering with work during operation and having an excellent weatherability, can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety belt hook to be used when working at height, and more particularly to a hook having a built-in shock absorber to reduce the impact load when a fall occurs.

[0002]

2. Description of the Related Art A safety belt for work at high places which has been conventionally used is one in which a rope or a rope-like belt R is connected to a belt B wound around the body of an operator as shown in FIGS. The shock absorber S has a hook F connected to the tip of the shock absorber S for the purpose of mitigating impact load when dropped.
Between belt B and rope R, or rope R and hook F
It was something to intervene between. When working with a safety belt, the hooks are re-hanged many times when moving from place to place, and the shock absorber S, which has a certain amount of feel and texture, is attached to the waist when locking and after work after locking. It was difficult and uncomfortable for the operator to swing at the bottom of the hook F.
Also, shock absorbers are generally manufactured by sewing belts, and although they are covered with vinyl leather, it is not desirable that they are exposed in the middle of the rope in terms of weather resistance. .

[0003]

In order to solve the above problems, the present application discloses a technique for housing a shock absorber in a hook. The minimum requirement for the structure of the safety belt hook is to have a space for the hook part, which is composed of the opening / closing cap controlled by the safety cap and the hook part, and the body part is an extension of the hook part. Therefore, it can be said that it only plays a role of obtaining a place for providing a pivotal fulcrum of each cap and a place of a binding portion of a rope. Therefore, the problem is solved by also having a role of incorporating a shock absorber in the main body.
Specifically, the hook-shaped part has a short length, and at its base end there is a space where a shock absorber can be built in, and a structure is adopted in which two cases that combine the opening and closing cap and the safety cap and have a pivotal fulcrum are connected. Is. The short hook portion has a connecting hole for connecting the case and sewing the belt of the shock absorber. By adopting the above configuration, the shock absorber can be built in the main body that supports the opening / closing cap and the safety cap, and by not providing it in the exposed position, the shock absorber mainly made of synthetic fiber naturally deteriorates due to sunlight etc. Since the case has a certain thickness, the case is positioned in the palm of the hand when the hook is operated, and it is easy to grip.

[0004]

EXAMPLE As an example of the present application, a long groove-shaped belt connecting hole 11 is provided at a base end portion, and a hook-shaped portion 1 curved in a hook shape is formed by forging. The belt connecting hole 11 is connected to the front end of the belt 3 in which the aramid fiber having the base end connected to the safety belt is mixed and woven. The tip of the belt 3 to be connected is superposed in a predetermined shape, and the shock absorber 4 is constructed by sewing the belt 3 in multiple threads. The 4 parts of the shock absorber sewn with multiple threads are structured so that when a drop impact load is applied, the sewing thread is dissociated in sequence, thus absorbing the impact force. Case 2 with a length that covers the entire length of 4 parts of this shock absorber
1 Connect to the base end. The case 2 has a shape in which two separated sheets are superposed, and is superposed for a predetermined length on the base end of the hook-shaped portion 1 and is riveted. At the end of the case 2, an opening / closing cap 5 that constitutes a space of the hook 12 that is closed by coming into contact with the tip of the hook 1 from inside is supported by a spring. On the outside of the base end portion of the case 2, a safety cap 6 that comes into contact with the opening / closing cap 5 and controls the rotation thereof is pivotally supported. The safety cap 6 is also provided with a spring and normally abuts against the opening / closing cap 5 to prevent its rotation. By gripping against the spring, the opening / closing cap 5 can be rotated and the hook 12 Can be opened. Case 2 containing the shock absorber 4
The other end is sealed with a cap 7 while leaving a portion where the belt 3 passes and is riveted. Therefore, the shock absorber 4 is hermetically sealed in the case 2, so that natural strength due to sunlight does not occur and the strength at the time of design can be maintained.

[0005]

As described above, by adopting the hook of the present invention, it is possible to obtain a safety belt with a shock absorber that does not interfere with work and has excellent weather resistance. In the conventional safety belt, the shock absorber is overlapped with the belt portion of the safety belt and connected, or is interposed between the rope at the base end portion of the hook or the belt.
Therefore, there are problems that the waist is bulky and worrisome, it shakes every time the hook is locked and it is difficult to handle, and the hook is bulky when stored in a bag when walking without using a safety belt. However, the problem is solved by storing it in the main body of the hook. In addition, since the main body of the hook has a certain amount of bulge due to the case, there is an additional effect that the hook is easily gripped during the locking operation.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of the present application.

FIG. 2 is a partially cutaway left side view of the present application.

FIG. 3 is a perspective view of the present application.

FIG. 4 is a front view of a conventional product.

FIG. 5 is a front view of a conventional product.

FIG. 6 is a front view of a conventional product.

[Explanation of symbols]

 1 Hook-shaped part 2 Case 3 Belt 4 Shock absorber 5 Opening / closing cap 6 Safety cap 7 Cap 11 Belt connecting hole 12 Hook part B Belt F Hook R Rope or rope-shaped belt S Shock absorber

Claims (1)

[Claims] 1. A box-shaped case 2 is connected to the hook-shaped portion 1, and one end of a belt 3 is superposed in a predetermined shape at the hook-shaped portion base end projecting into the case 2 and sewn into multiple threads. The shock absorber 4 is connected and housed in the case 2, and the tip of the open / close cap 5 pivotally supported at the end of the case abuts the inside of the hook-shaped end to form a space for the hook 12. A safety belt hook characterized in that a safety cap 6 pivotally supported at the base end can abut against the opening / closing cap 5 to prevent its rotation.