KR101882742B1 - Lanyard for safety belt - Google Patents

Abstract

The present invention relates to a purse line for a safety belt, and more specifically, to a purse line for a safety belt, which allows a worker to easily and selectively use double purse lines by varying a step height depending on the height of a work site and an interval between structures in case of high place work, and prevents collision against the ground surface or a structure in case of a falling accident. The present invention comprises: a shock absorbing device mounted on the outer face of the purse line and having a fabric tube; and a tensile load core formed integrally inside to support the worker′s weight. Therefore, the purse line for a safety belt can protect the tensile load core, enhance worker′s safety, and buffer and absorb shock applied to the worker in stages at the time of falling.

Description

{LANYARD FOR SAFETY BELT}

The present invention relates to a safety lanyard, and more particularly, to a safety lanyard in which a worker can selectively use a double lanyard with different steps according to the height of a work site and the spacing between structures during a high- And to a safety lanyard which prevents collision with a ground or a structure when an accident occurs.

Generally, in an industrial site such as a construction site, an operator often performs work on various scaffolds or structures installed at a high position from the ground. In such a high-altitude operation, frequent safety accidents due to falls occur frequently, In order to protect against the risk of accidents and to increase the safety, it is necessary to wear safety protective gear such as safety lanyard.

However, when such a safety lanyard is used, a strong impact force according to the load of the worker is directly transmitted to the waist or the vertebrae portion of the worker through the safety lanyard of the outer line even if the operator avoids collision with the fall- There is a problem that the subsequent risk becomes very high.

Accordingly, various types of safety lanyards have been proposed in which a shock absorber is provided on a safety lanyard so that shocks can be absorbed and buffered.

As a representative technique of such a safety lanyard, Korean Patent Laid-Open No. 20-2001-0044130 (Prior Art 1, hereinafter referred to as Prior Art 1) discloses a technique in which one end is fixed to a waist belt of an operator and the other end is detached and attached to a safety structure A fall preventive belt fixed to a safety rope that is fixed as much as possible so as to prevent a fall notice worker from falling on the floor of the work and a plurality of wings fixed to both ends of the fall preventive belt, And a shock absorbing belt for absorbing and mitigating the impact applied to the waist of the worker while being separated by the jaws.

On the other hand, Korean Unexamined Patent Publication No. 10-2015-0136555 (Prior Art 2, hereinafter referred to as "Prior Art 2") discloses a fixing member which is fixed to a safety member and has one side connected to the fixing portion, Wherein the band is composed of a plurality of rings connected to the other side of the band and fixed to the fixing member, the band being connected to the fixing part and being stacked in multiple stages inside one side of the band, And an impact absorbing device for reducing an impact applied by a worker's fall is additionally constructed.

However, in the case of Prior Art 1, a large impact is temporarily applied to the worker at the moment of cracking of the double knuckle of the fall notice, and the impact is buffered and absorbed only by one shock absorbing belt.

In the case of the prior art 2, since a separate shock absorber must be provided, the volume and weight are increased, and a work space for hanging the two rings on the safety structure at the same position is required. There is a problem in that it is restricted.

Also, there is a risk that the seat belts of prior arts 1 and 2 are exposed to the outside, which can easily be worn or cut during a long working time.

In addition, since it is stipulated that the length of the lanyard can not be adjusted in order to prevent the risk of a safety accident in accordance with the current safety regulations, when a shock absorber is provided on a lanyard used normally, There is a possibility that a collision accident may occur due to an impacted lanyard as in the prior arts 1 and 2 when the vehicle collides in an environment where the structure is complicated.

In order to overcome the above problems, it is possible to selectively use the double lanyard with different steps according to the height of the work site and the distance between the structures, and to prevent collision with the ground or the structure The present invention has been made in view of the above problems.

It is a further object of the present invention to provide a shock absorbing device comprising a fabric tube on the outside of a lanyard and a tensile load core member for supporting a load of the worker in an integrated manner to protect the tensile load core member, It is an object of the present invention to provide a safety lanyard in which a shock applied to an operator during a crash is buffered and absorbed in stages.

According to an aspect of the present invention,

And a hook 30 is formed on one side of the fabric bar 20. The hook 40 is fastened to the loop 30 and fastened to the sewing part 20, A first lanyard 10a and a second lanyard 10b which are formed in a pair and have different stepped portions are formed and hooks 50 are connected to one end of each of the first lanyard 10a and the second lanyard 10b.

At this time, a corrugated fabric tube 11 is formed on the outside of the lanyard 10, and a tensile load core 12 is inserted into the lanyard 10 so that the worker can safely support the load The collision avoidance apparatus prevents a collision with a crash surface or a structure, and absorbs and buffers an impact, which is weighted by a load of an operator, during a crash.

The tensile load core material 12 is woven with a synthetic fiber 12a having a high tensile strength and is further woven with the elastic yarn 12b in a twisted manner with respect to the lengthwise direction of both sides to form a primary Thereby shock-absorbing the shock.

The safety lanyard according to the present invention enables the operator to selectively use the double lanyard with different steps according to the height of the work site and the gap between the structures during the elevation work, It has a remarkable effect of preventing collision with the structure.

Further, according to the present invention, there is provided a shock absorber comprising a fabric tube on the outside of a lanyard, and a tensile load core member for supporting a load of the worker is integrally formed therein to protect the tensile load core member, And has a remarkable effect of gradually cushioning and absorbing the impact applied to the city operator.

Figure 1 shows a prior art lanyard.
2 shows the construction of a lanyard according to the present invention.
3 is a developed view of a safety lanyard according to the present invention.
4 is a sectional view of a lanyard according to the present invention.
5 shows a tensile loaded core according to the present invention.
6 shows an example of the use of a lanyard according to the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor can properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents And variations are possible.

Before describing the present invention with reference to the accompanying drawings, it should be noted that the present invention is not described or specifically described with respect to a known configuration that can be easily added by a person skilled in the art, Let the sound be revealed.

The present invention relates to a safety lanyard, and more particularly, to a safety lanyard in which a worker can selectively use a double lanyard with different steps according to the height of a work site and the spacing between structures during a high- And to a safety lanyard which prevents collision with a ground or a structure when an accident occurs.

Further, according to the present invention, there is provided a shock absorber comprising a fabric tube on the outside of a lanyard, and a tensile load core member for supporting a load of the worker is integrally formed therein to protect the tensile load core member, The present invention relates to a safety lanyard for buffering and absorbing a shock applied to a worker step by step.

Such a safety lanyard will be described with reference to FIGS. 2 to 6 attached hereto.

3 is a developed view of a lanyard according to the present invention, FIG. 4 is a sectional view of a lanyard according to the present invention, and FIG. 5 is a sectional view of a lanyard according to the present invention. 6 shows a use example of a lanyard according to the present invention.

The lanyard according to the present invention comprises a lanyard 10, a sewing section 20, a ring 30, a connecting section 40, and a hook 50.

As shown in Figs. 2 to 3,

One of the fabric bars constituting the lanyard 10 is folded and joined by the sewing section 20 so that a ring 30 is formed on one side of the fabric 30. The connection section 40 is fastened to the loop 30 so as to be fixed to the waist belt of the operator .

The first lanyard 10a and the second lanyard 10b separated from the sewing part 20 form a pair and one end of each of the first lanyard 10a and the second lanyard 10b is connected to the hook 50 to be attached to and detached from the safety structure .

At this time, the first lanyard 10a is formed to be shorter than the second lanyard 10b so that the steps are different from each other. When the worker operates the lanyard in accordance with the height of the safety structure and the gap between the upper and lower structures, 10a, and 10b can be easily selected to improve workability.

As shown in FIG. 4, the lanyard 10 is formed of a wrinkled cloth tube 11, and a tensile load core 12 is inserted into the tensile load core 12 12) are prevented from being easily worn or damaged, and the safety of the operator can be enhanced.

At this time, the wrinkles formed on the fabric tube 11 can be unfolded or concentrated to one side according to the operator's convenience, thereby reducing interference during operation or movement and facilitating the operation.

The tensile load core 12 is woven with a synthetic fiber 12a having a tensile force and when the synthetic fiber 12b is woven in a twisted manner with the synthetic fiber 12a in the longitudinal direction when the synthetic fiber 12a is woven, 5), the operator is allowed to support the load of the operator in the case of a high-altitude operation, and when the impact is increased due to the load of the operator in the event of a fall, the elastic yarn 12b is ruptured by the impact to buffer the primary impact, The tensile load core 12 is cut off and the secondary impact can be buffered.

6 (a)), the wrinkles of the fabric tube 11 are stretched and the impact is absorbed (see Fig. 6 (b)) after the cutting of the tensile load core 12 inserted inside the woven fabric tube 11 , It is possible to buffer and absorb the strong impact at the time of falling, so that the impact to the operator is minimized and the fall to the ground is prevented.

As the material of the synthetic fiber 12a, high strength polyester yarn, aramid yarn, polyethylene yarn and the like are preferable, and as the material of the elastic yarn 12b, a composite yarn of polyurethane and cotton is preferably used, but not limited thereto .

On the other hand, in the case where a work is carried out in a place where the space between the upper and lower structures of the work site is narrow, there is a fear that the length of the safety lanyard is increased due to an impact upon falling,

The length of the first lanyard 10a excluding the connecting portion 40 and the hook 50 is within 1060 to 1160 mm and the length of the second lanyard 10b is within 1500 to 1600 mm, The length of the first lanyard 10a is limited to a maximum of 1660 mm and the length of the second lanyard 10b is not limited to a maximum of 2300 mm when the rear cloth tube 11 is expanded so as to prevent the risk of collision with the lower structure do.

The first lanyard 10a and the second lanyard 10b of the lanyard 10 fixed to the waist belt of the worker can be selected and used according to the conditions of the worksite and the needs of the operator through the lanyard having the above- .

Accordingly, it is possible to improve the mobility and workability between the safety structures, to buffer and absorb the shock at the time of the notice of the falling accident, and to prevent the collision with the ground or the lower structure.

The first lanyard 10a and the second lanyard 10b described above are integrally provided and the fabric tube 11 and the tensile load core 12 are integrated so that unnecessary weight can be reduced during the operation, Thereby improving convenience and durability.

2 to 6 have described only the main points of the present invention. As far as various designs can be made within the technical scope thereof, the present invention is not limited to the configurations shown in Figs. 2 to 6 It is self-evident.

10: lanyard 20: sewing part
30: ring 40: connection
50: Hook
10a: first lanyard 10b: second lanyard
11: fabric tube 12: tensile load core
12a: Chemical fiber 12b: elastic yarn

Claims (5)

Claims [1] A safety lanyard for preventing a worker from falling during a high altitude work,
A connecting portion 40 for folding one fabric bar and joined by a sewing portion 20 to form a ring 30 on one side and fixing the loop 30 to an operator's waist belt;
A first lanyard 10a and a second lanyard 10b which are separated from each other in the sewing part 20 and form a pair;
The lanyard 10 is constituted by a hook 50 connected to one end of each of the first lanyard 10a and the second lanyard 10b and has a corrugated shape outside the lanyard 10, A fabric tube 11 formed so as to be able to absorb and absorb an impact imposed by a load and a tensile load core 12 formed inside the fabric tube 11 to support a load of an operator, The wrinkles formed on the tube 11 can be spread or concentrated to one side according to the operator's convenience. The tensile load core 12 is woven with a synthetic fiber 12a having a tensile force, and the length of the tensile load core 12 The elastic yarn 12b is tied with the synthetic yarn 12a in a twisted manner. When the impact is applied due to the load of the operator in the event of a fall, the elastic yarn 12b is ruptured by the impact to buffer the primary shock , And then the synthetic fiber 12a The tensile load core 12 is cut so that the secondary impact can be buffered. After the tensile load core 12 having the woven outer tube 11 inserted therein is cut, (11) is absorbed while the wrinkles of the wiper (11) are stretched, so that a strong impact at the time of falling can be buffered and absorbed in a stepwise manner, thereby minimizing an impact applied to an operator and preventing a fall to the ground Lanyard.
The method according to claim 1,
The first lanyard 10a is formed to be relatively shorter than the second lanyard 10b so that the steps are different from each other. When the operator operates the lanyard 10a or 10b according to the height of the safety structure and the gap between the upper and lower structures, And the second lanyard (10b) can be selected for use.
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