JP3177685B2 - Safety belt - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety belt used at a high work site such as a construction site.

[0002]

2. Description of the Related Art As is well known, a safety belt is provided for the safety of workers at work sites at high places, and is composed of a trunk belt, hooks, and lifelines. The torso belt is wrapped around the worker's body. Prior to this application, the inventor of the present invention has developed a narrow connecting belt having a special configuration. That is described in Japanese Utility Model Application Laid-Open No. 2-94569. In the case of the connecting belt disclosed in the publication, a large strength is obtained by the yarn of aramid fiber, which can be used as a lifeline of the safety belt. Therefore, as shown in FIG. 8, the narrow connecting belt 1 is wound on a take-up reel 2, for example, an annular connecting ring 4 is provided on a trunk belt 3, and the take-up reel 2 is attached to the connecting ring 4, and Equipped on belt 3. The hook 5 is attached to the end of the connecting belt 1, and the trunk belt 3 and the hook 5 can be connected by the connecting belt 1. Therefore, it can be used in a state where the long connecting belt 1 is wound up at a high work site such as a construction site, and the usability is good and the functionality can be enhanced. Further, a shock absorber 6 may be formed by the connection belt 1, and the connection belt 1 may be connected to the hook 5 via the shock absorber 6.

[0003] Incidentally, in this safety belt, it was originally planned to use a 1.5 m long connecting belt 1 as the connecting belt 1, but recently, with the diversification of business, the connecting belt 1 has a length of 3 m. It is desired to use one of up to 5 m. However, 3m-5m
In the case of the connecting belt 1 having a length of?, When an operator falls from a work place at a high place, the impact value is very large. To cope with this, an extremely large shock absorber 6 needs to be used. . Moreover, the position is a position close to the hook 5. For this reason, there is a problem that the design and the usability are impaired by the shock absorber 6.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a safety belt in which a narrow connecting belt is wound on a take-up reel, the take-up reel is mounted on a trunk belt, and the trunk belt and the hook are connected by the connecting belt. The purpose is to prevent the design and usability from being impaired.

[0005]

According to the present invention, in the safety belt in which the trunk belt 3 and the hook 5 are connected by the narrow connecting belts 1 and 12, the connecting belt 1 near the hook 5 is double overlapped, and the binding thread is provided. 7, the overlapping portion is formed, thereby forming the first shock absorber 6, and the connecting belt 12 near the body belt 3 is double overlapped, and the overlapping portion is joined by the binding thread 7, A second shock absorber 11 is formed by this, and the connecting belts 1 and 12 of the first and second shock absorbers 6 and 11 are bent and folded.
The metal pipes 8 and 15 are overlapped with each other by the binding belt 1 and the metal pipes 8 and 15 are joined together.
12 and crimped to the joint portion of the connecting belts 1, 12 and the insertion pins 16 are inserted into the turning points of the connecting belts 1 and 12,
12 attachment parts, the metal tubes 8, 15 and the insertion pin 1
6, the first and second shock absorbers 6,
11 is provided.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
FIG. 1 shows an embodiment of the present invention. This safety belt has a narrow connecting belt 1 and the connecting belt 1 is a specially developed one described in Japanese Utility Model Laid-Open Publication No. 2-94569. It has been wound up. Further, the take-up reel 2 is mounted on the trunk belt 3, and the trunk belt 3 and the hook 5 are connected by the connection belt 1,
The connection belt 1 is connected to the hook 5 via a first shock absorber 6. The first shock absorber 6 is similar to the shock absorber 6 of FIG. As shown in FIGS. 2 and 3, the connecting belt 1 is passed through the hole of the hook 5 and folded, and in the first shock absorber 6, the connecting belt 1 is folded to both sides, folded and double overlapped. The connecting belt 1 is attached by the binding thread 7, the metal tube 8 is pressed against the connecting belt 1, and the insertion pin 9 is inserted into the turning point of the connecting belt 1. And this is accommodated in the cover 10, and the 1st shock absorber 6 is comprised by this.

On the other hand, the take-up reel 2 is connected to the trunk belt 3 via a second shock absorber 11. The second shock absorber 11 includes a connecting belt 12 separate from the connecting belt 1. The connection belt 12 is of the same type as the connection belt 1. In the take-up reel 2, the connecting belt 1 is wound around the main body 13, and the main body 13 is provided with an annular connecting fitting 14.
Is passed through the connection fitting 14, folded back, and joined by the binding thread 7. An annular connecting ring 4 is provided on the body belt 3, and the connecting belt 12 is connected to the connecting ring 4.
In the same manner as the connection belt 1 of the first shock absorber 6, the connection belt 12 is bent to both sides, folded, double overlapped, and the binding belt 12 is attached by the binding thread 7. In addition, metal tube 1
5 is crimped to the connection belt 12, and the insertion pin 16 is inserted into the turning point of the connection belt 12, and as shown in FIG.
This is accommodated in the cover 17, which constitutes the second shock absorber 11. Therefore, the take-up reel 2 is connected to the trunk belt 3 via the second shock absorber 11 and the connection ring 4.

In this embodiment, the main body 13 of the take-up reel 2 is accommodated in a cover 18, and a belt loop 19 is provided on the back of the cover 18 as shown in FIG. Through which the take-up reel 2 is held. Further, a thin portion 20 is provided at a predetermined portion of the belt loop 19. Therefore, as described below, when a worker crashes from an aerial work site,
The belt loop 19 is cut at the thin portion 20.

In this safety belt, when the trunk belt 3 is wrapped around the body of the worker and the hook 5 is engaged with a fixed object at the work place at a high place, when the worker falls down from the work place at a high place, the connecting belt 1 Is unwound from the take-up reel 2.
When the connecting belt 1 is completely unwound, the body of the worker is supported by the connecting belt 1, and the load acts on the cover 18 of the take-up reel 2, and as shown in FIG. Is cut at the thin portion 20, and the take-up reel 2 is separated from the body belt 3. Further, in the first shock absorber 6, the connecting belt 1 is
Is overlapped, the binding thread 7 is cut, the insertion pin 9 is pushed into the metal tube 8, and the metal tube 8 is deformed and expanded by the insertion pin 9. This absorbs the impact. At the same time, in the second shock absorber 11, the connecting belt 1
The overlapping portion 2 is stretched, the binding thread 7 is cut, the insertion pin 16 is pushed into the metal tube 15, the metal tube 15 is deformed and expanded by the insertion pin 16, and the impact is absorbed. You.

Accordingly, in the case of this safety belt, the first
And the shock can be absorbed by the second shock absorbers 6,11. Accordingly, with the diversification of business, when using a connecting belt 1 having a length of 3 m to 5 m, it is not necessary to use an extremely large first shock absorber 6, and the first shock absorber 6 impairs design and usability. There is no problem that the In the case of the connecting belt 1 having a length of 3 m to 5 m, as described above, when the worker crashes from the work place at a high place, the shock value is very large, but an extremely large shock absorber 6 is used. Without doing so, in addition to the first shock absorber 6,
The shock can be absorbed by the second shock absorber 11, and there is no problem.

1, the connecting belt 12 of the second shock absorber 11 is superimposed on the trunk belt 3, and the binding belt 7 is attached to the body belt 3 and fixed as shown in FIG. It is also possible to do.

[0012]

As described above, according to the present invention, the first and second shock absorbers 6 and 11 can absorb a shock. Accordingly, with the diversification of business, when using a connecting belt 1 having a length of 3 m to 5 m, it is not necessary to use an extremely large first shock absorber 6, and the first shock absorber 6 impairs design and usability. It does not raise the problem of achieving the intended purpose.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an exploded view of the safety belt of FIG.

FIG. 3 is a sectional view of a first shock absorber of FIG. 1;

FIG. 4 is a sectional view of a second shock absorber of FIG. 1;

FIG. 5 is a rear view and an enlarged view of the take-up reel of FIG. 1;

FIG. 6 is an explanatory view showing a state in which a worker's body is supported by the safety belt of FIG. 1;

FIG. 7 is an exploded view showing another embodiment.

FIG. 8 is a perspective view showing a safety belt having a single shock absorber.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connecting belt 2 Take-up reel 3 Body belt 5 Hook 6 1st shock absorber 11 2nd shock absorber

Claims (1)

(57) [Claims] A safety belt in which a trunk belt (3) and a hook (5) are connected by narrow connecting belts (1) and (12),
The connecting belt (1) near the hook (5) is double overlapped, and the overlapping portion is joined by a binding thread (7),
Thus, a first shock absorber (6) is constructed, the connecting belt (12) near the trunk belt (3) is double overlapped, and the overlapping portion is joined by a binding thread (7).
This constitutes a second shock absorber (11), and furthermore, the first and second shock absorbers (6), (11)
The connecting belts (1) and (12) are folded, folded, overlapped in a double manner, the overlapped portion is joined by the binding thread (7), and the metal pipes (8) and (15) are connected to the connecting belt ( 1), crimped to the mating part of (12), the insertion pin (16), the connecting belt (1),
(12), the first and second shock absorbers (1) and (12) are joined by the metal pipes (8) and (15) and the insertion pin (16). (6) A safety belt comprising (11).