JPH0884780A - Ring for safety belt - Google Patents

Abstract

PURPOSE: To decrease the wt. of the whole safety belt, to improve handling properties and to lower cost remarkably by neglecting a belt-type cushioning body. CONSTITUTION: A ring for a safety belt consists of a cushioning part 2 prepd. by making semi-circular arc parts 1 of both ends of a flat ring-like body stand and a belt fitting part 5 wherein two or three pieces of sides 2 being parallel to one of the connecting sides 3 are additionally added in a plane formed by both connecting sides 3 connecting between the semi-circular arc parts and both end parts thereof are connected to form approximately a two-squares-side- fused shape or three-squares linearly side-fused shape.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD This application relates to a safety belt used by an aerial worker for the purpose of preventing a fall, and in particular, a rope with a hook at the tip or a winding belt with a belt with a hook. The present invention relates to a ring for connecting a container to a belt of a safety belt.

[0002]

2. Description of the Related Art In a conventional winding type safety belt for working at high places, a belt with a hook at its tip is pulled out from a winder and the hook is locked at a predetermined length. The belt was locked in that position. Even if it says lock, the bobbin does not rotate in the rewinding direction,
The belt can be pulled out in the stretching direction, and when rewinding (to accommodate the belt), the pawl meshing with the ratchet teeth of the bobbin can be released by pressing the release button or pulled out slightly from the locked position. In some cases, the direction of the pawl is changed and the ratchet tooth is released at the missing portion. Therefore, in the unlikely event that an operator falls from a high place, all the belts are pulled out, and the belt made mainly of aramid fibers does not have the characteristic elongation and the drop impact load is high unlike nylon ropes. Therefore,
As shown in (1), the buffer B wound around the waist of the worker is provided with the buffer S for the purpose of alleviating the impact load at the time of a fall. The shock absorber also includes a rope belt R and a hook F.
It was sometimes intervened between. Buffer S shown in FIG.
Is a belt made by folding back a narrow woven belt and superposing the overlapped portion in a zigzag manner, interposing it between the winder and the ring, and inserting and connecting it to the belt B. The cushioning body S shown in FIG. 9 is produced by folding back a part of the rope-shaped belt R and polymerizing it, and sewing the polymerized part in multiple stitches in a zigzag shape, and joining it to the base of the hook F. as,
It is set to 900 kgf or less, which is stipulated in the "Safety Belt Standard" of the Ministry of Labor. In the work using the safety belt, the hooks are repeatedly changed when moving to the work place, and the buffer S having a certain amount of feeling and texture when stopped and during the work after locking. The bulkiness of the waist at the waist or the shaking at the base of the hook was uncomfortable and unpleasant for the operator. Further, the cost of the buffer S in the entire safety belt occupies a large weight.

[0003]

SUMMARY OF THE INVENTION Therefore, the present application eliminates the costly belt-type shock absorber which is difficult to handle,
It is intended to improve handleability and reduce costs.

[0004]

[Means for Solving the Problems] The ring connecting the winder and the belt has a function of deforming when a drop impact load is applied to absorb and relax the drop impact load, thereby improving the handleability of the conventional product. Belt type shock absorber S that is bad and costly
To improve handling, reduce weight, and reduce costs.

[0005]

[Examples] To describe the examples of the present application in detail, the present application is formed by punching or forging by press working, and the semicircular arc portions 1 at both ends of a flat annular body are made wide or large in diameter, and are made upright respectively. It is composed of a cushioning portion 2 and a belt attaching portion 5 following it. The belt attachment part 5 is to connect both ends by adding a side 4 of approximately the same length parallel to one side in the plane formed by the two connecting sides 3 that connect the semi-circular parts on both ends. .
If you add 2 sides 4, it will be almost in the shape of a letter, and 3 sides
If 4 is added, it will become a substantially eye-shaped shape. To connect to the winder 6 as described above, the belt mounting portion 5
On the other side of the connecting side 3
The position within 6 is fixed. The take-up device 6 is connected to one of the connecting sides 3 and the belt attachment portion 5 inserts the belt B of the safety belt and is fixed at a predetermined position on the belt B. In the case of a date-shaped mounting part, the belt B is inserted so that the intermediate side 4 is inside the belt B (the human body side when worn on the human body), and the hook F at the tip of the belt R pulled out from the winder 6 Then, the final fall arrest condition is obtained at this intermediate side 4. Further, when the substantially eye-shaped belt mounting portion 5 is formed, the side 4 which engages with the belt B when it is inserted into the belt B
The higher the resistance, the higher the resistance, and the more secure the fixing becomes. When a fall occurs using the safety belt using the ring having the above-mentioned structure, the ring stretches, and the drop impact force is mitigated to prevent damage to the human body or the like. In the present embodiment, the semi-circular arc portion 1 is formed to have a large diameter.
By doing so, the deformation of each side 4 of the belt mounting portion 5,
This is because the deformation of the connecting side 3 in the winder 6 can be obtained, and the cushioning effect is larger than in the case of only the opening load concentrated in the semi-circular arc portion 1 in the case of configuring the same diameter as the other portion. In this embodiment, the belt-winding type safety belt has been mainly described, but it is also effective to tie a rope having a hook attached to the tip thereof with the ring of the present application. Does not require a protrusion provided at the center of the connecting side 3.

[0006]

As described above, by adopting the ring disclosed in the present application, it becomes possible to absorb and absorb the drop impact force and the need for the bulky cushioning body used in the past is eliminated. Therefore, the safety belt itself becomes lighter,
The handling is improved, and the manufacturing cost is also reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a ring of the present application.

FIG. 2 is a front view of the present ring.

FIG. 3 is a front view of the ring of the present application attached to a winder.

FIG. 4 is a bottom view of FIG.

FIG. 5 is a front view of the second embodiment of the present application.

FIG. 6 is a front view of a safety belt using the ring of the present application.

FIG. 7 is a front view of the present ring in a dropped state.

FIG. 8 is a front view of a conventional safety belt.

FIG. 9 is a front view of a conventional safety belt.

[Explanation of symbols] 1 Half arc part 2 Buffer part 3 Connection side 4 Side 5 Belt mounting part 6 Winder B Belt F Hook R Rope belt S Buffer

Claims (1)

[Claims] 1. In a plane formed by a buffer portion 2 formed by erecting the semi-circular arc portions 1 at both ends of a flat annular body and two connecting sides 3 connecting the semi-circular arc portions, parallel to one connecting side 3 A belt for a safety belt, which is formed by adding two or three sides 4 and connecting both ends of the belt mounting portion 5 in a substantially day shape or a eye shape.