KR100788519B1 - Elastic safety rope - Google Patents

Abstract

An elastic safety rope is provided to minimize the diameter and the contracting length of the safety rope and to reduce the weight of the safety rope when it is not used, to be handled conveniently. An elastic safety rope includes a core material(11) and an elastic tube(12). The core material is made of a fiber yarn and is able to expand and contract. The elastic tube is installed on the outer circumference of the core material and makes the core material expand and contract. The core material is formed by weaving fiber yarn. The elastic tube is made by knitting elastic yarn. The core material is folded in the transversal direction. The core material is sewn to make loops formed on both end portions. Hooks(30) or carabiner are connected to both ends of the safety rope.

Description

Flexible Lifeline {ELASTIC SAFETY ROPE}

1 is a perspective view showing an elastic lifeline according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line A-A of FIG. 1 and shows a state in which the elastic body and the core member of the present invention are contracted.

FIG. 3 is a cross-sectional view taken along the line A-A of FIG. 1, showing the state in which the elastic body and the core member of the present invention are extended.

4 is a partial cutaway plan view illustrating a portion of the elastic body and the core of the present invention, and shows a state in which the elastic body and the core are shrunk.

5 is a partial cutaway plan view showing a portion of the elastic body and the core material of the present invention, showing a state in which the elastic body and the core material are extended.

6 is a partial perspective view showing one end of the lifeline of the present invention in detail.

Brief description of symbols for the main parts of the drawings

10: lifeline 11: heartwood

12: elastic body 20: cabarina

30: hook

The present invention relates to a personal protective device which is a safety equipment for ensuring the maximum safety of the worker in various construction or industrial sites, more specifically, to prevent the fall of the aerial worker working at high places and / or to save lives in the fall. It's about lifeline.

In general, construction sites that construct high-rise structures such as buildings or bridges, shipyards that build large vessels, and construction sites that perform electrical installations such as telephone poles or steel tower repairs, etc. In order to protect workers from the risk of accidental fall accident when working at such high position, workers should wear protective equipment such as seat belts or safety swings. Mandatory as a verification regulation and safety rule.

In addition, the protective equipment is connected to the stepping machine or structure through the safety lifeline to prevent the fall of the worker, this safety lifeline is generally twisted or woven, such as natural or synthetic fibers, one end of the lifeline The carabiner is fixed to the protective equipment side, and the other end of the lifeline is fixed to the step or structure side via the hook (hook).

However, such a conventional lifeline is specified to a length of 1.5 ~ 3m by the safety standards, accordingly, when the worker is wearing the lifeline without connecting the lifeline caught in the structure during the operation can interfere with the worker's work In case of walking, if you keep hitting the leg part or walking, the lifeline touches the ground and foreign matters come along, and the lifeline itself is not elastic. If the worker falls while connected to the lifeline there was a disadvantage that the shock can not be absorbed.

Accordingly, Korean Patent No. 10-626420 (hereinafter referred to as a pre-registered patent) entitled "Shock Absorption Seat Belt for Aerial Work," which can give elasticity to the lifeline itself, has been disclosed.

The lifeline according to the pre-registered patent discloses a configuration having an elastic body in the center of the fabric tube, whereby the lifeline can give an elastic force (stretch force) in the longitudinal direction, when the lifeline is not in use (that is, lifeline In the case that the external force is not applied), the length of the elastic body is slightly contracted by the restoring force of the elastic body, thereby improving the worker's convenience.

However, the pre-registered patent is that when the fabric tube is shrunk by the restoring force of the elastic body when the lifeline is not used, the diameter thereof is increased and the working efficiency of the worker is reduced, and the length of the worker is reduced by about 1.5m to 1m. In terms of convenience, its effectiveness was questioned, and when the fabric tube was contracted due to the elastic force of the elastic body, its appearance was uneven and its appearance was not beautiful.

In addition, the pre-registered patent has a disadvantage that the contraction length of the lifeline does not satisfy the minimum contraction length for improving the work convenience.

The present invention has been made in view of the above point, and even when the lifeline is not in use, while minimizing the diameter and length of contraction, while also significantly reducing its weight to provide an elastic lifeline that can greatly improve the work convenience of the operator Its purpose is to.

In addition, an object of the present invention is to provide an elastic lifeline that can facilitate the replacement of the lifeline by facilitating the separation and coupling of the lifeline on the side of the cabarina or hook mechanism.

The present invention for achieving the above object,

Stretch core made of fiber yarn; And

It includes; an elastic tube provided on the outer peripheral surface of the core material to stretch the core material.

The core is made of a weaved fiber yarn (weaved).

The elastic tube is made of knitted yarn (knitted).

The core member is characterized in that folded in the width direction.

The core is sewn to form a loop at both ends thereof.

At least one end of the core member is sewn in a twisted state.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 6 illustrate a stretchable lifeline in accordance with one embodiment of the present invention.

As shown, the lifeline 10 of the present invention is fixedly connected to both ends of the hook 31 and carabiner 20 of the hook (hook, 30).

The hook 30 is detachably fixed to the stepping member or the structure, and the carabiner 20 is detachably fixed to the protective equipment side such as a seat belt or a safety swing worn by the operator.

The lifeline 10 of the present invention includes a core 11 and an elastic tube 12.

The core 11 may be woven or knitted of various kinds of synthetic or natural fibers capable of withstanding the tensile strength specified by the safety standard, so that the core 11 is elongated in its longitudinal direction. To contraction.

Preferably, the core 11 is made of a plurality of fibers weaved (weaved) as shown in Figures 4 and 5 can improve the stretch in the longitudinal direction as well as the manufacturing of the core 11 Can be made easier.

Then, the core 11 is folded in its width direction as shown in FIGS. 2 and 3 to be accommodated in the center of the elastic body 12, whereby the core 11 is prevented from being tangled or twisted in its longitudinal direction. Can be.

On the other hand, the fiber yarn constituting the core material 11 may be used a high-strength yarn such as aramid yarn, Kevler yarn, etc. having a tensile strength of about 22g per denia, such high strength yarn is thin and high tensile strength It has a material. That is, when a high strength yarn is applied to the core material 11 of the present invention, the diameter of the lifeline 10 can be significantly reduced.

The elastic tube 12 may be made by weaving or knitting an elastic yarn having elastic force, such as artificial rubber, natural rubber, etc. Accordingly, the elastic tube 12 may easily apply elastic force and restoring force in its longitudinal direction.

Preferably, as shown in FIGS. 4 and 5, the elastic tube 12 is made of an elastic yarn of rubber material knitted into an eight-shaped knitting structure, thereby greatly improving elasticity and restoring force in the longitudinal direction thereof. Not only can it be made, but also the manufacturing of the elastic tube 12 by the elastic yarn can be made easier.

And, each end of the elastic tube 12 is processed to the sewing rod (13a) at a position spaced apart at regular intervals from each end of the core material 11, accordingly, the core material 11 by the elastic force of the elastic tube 12 Elongation and contraction takes place.

Both ends of the core material 11 may be sewn in the form of a loop (loop) (11a) (13b), thereby easily coupled to the hook 30 and the cabarina 20 side. In particular, the present invention by the hook (11a) formed at both ends of the core material 11, if any one or more of the hook (30), cabarina (20), lifeline (10) is damaged and needs to be replaced Partial replacement is easy as the separation and coupling is easy, and accordingly, the present invention has the advantage that the recycling of the hook 30 and / or cabaria 20 as well as the lifeline 10 is very easy.

In addition, after the cap 14 is covered to cover the sewing portion 13a between the elastic tube 12 and the core 11 and the sewing portion 13b forming the ring 11a of the core 11. Can be processed.

In addition, the hooks 11a formed at both ends of the core material 11 may be coupled to each other through a hook 35 on the hook 30 and the cabarina 20. Accordingly, it is possible to prevent wear that may occur on the ring 11a side of the core material 11.

In addition, the ring (11a) formed on at least one side end of the both ends of the core material 11, as shown in Figure 6, may be sewn after a portion of the point (11c) is twisted.

In this way, if the hook 11a of the core material 11 is twisted in advance, and sewing is performed, the twist that may occur when the hook 11a of the core material 11 is fitted to the hook 30 and the cabarina 20 side is not shown. It can prevent and minimize the wear.

The operation of the present invention configured as described above will be described in detail as follows.

In a work place where there is a risk of falling, in order to perform a safe work, the hook 30 coupled with one end of the lifeline 10 is coupled to the stepping or the structure side, and then the other end of the lifeline 10 is combined with a barista. (20) is coupled to protective equipment such as seat belts or safety swings worn by the operator.

In this way, the worker through the lifeline 10 is connected to the stepping or the structure side, even if there is a risk of falling can safely work.

When an external force acts on the lifeline 10, that is, when the worker is suspended in the lifeline 10, the elastic tube 12 and the core material 11 of the lifeline 10 is applied with the stretching force in the falling direction, Accordingly, as shown in FIGS. 3 and 5, the core 11 and the elastic body 12 are stretched.

On the other hand, if the external force does not act on the lifeline 10, that is, when the lifeline 10 is not in use as shown in Figures 2 and 4 restoring force acts on the elastic body 12 to shrink the core material (11).

The present invention as described above, the elastic tube 12 is made of a structure covering the outside of the core material 11 can significantly reduce the overall diameter of the lifeline 10, and also to the maximum extension length of the lifeline 10 Since the maximum shrinkage length can be reduced to 1/3 or less, it is possible to minimize the elements that interfere with the operator's work when the lifeline 10 is not in use.

In addition, the present invention has the advantage that the elastic tube 12 is knitted into an eight-shaped knitted structure to maximize the degree of stretching can greatly improve the work convenience without compromising the safety of the operator.

In addition, the lifeline 10 of the present invention has a structure in which the elastic tube 12 covers the outer side of the core material 11, and each of the hook 30 and the cabarina 20 is coupled to the structure and the worker's seat belt. When working in the state, the feeling of pulling by the lifeline (10) is minimized, and the extension of the lifeline (10) proceeds very smoothly has the advantage of widening the scope of activity of the worker.

On the other hand, the conventional lifeline is sewn on the hook and / or cabarina side of the integrated structure was not able to achieve a partial replacement in case of damage to the hook, cabarina, lifeline, etc., but the lifeline of the present invention is both ends There is an advantage that can facilitate the partial replacement by the ring (11a).

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

The present invention as described above, even when the lifeline is not in use, while minimizing its diameter and shrinkage length, the weight is also greatly reduced, there is an advantage that can greatly improve the work convenience of the operator.

In addition, the present invention can facilitate the replacement of the lifeline by facilitating the separation and coupling of the lifeline to the cabarina or hook.

Claims (6)

Stretch core made of fiber yarn; And And an elastic tube provided on the outer circumferential surface of the core member to stretch the core member. The method of claim 1, The core material is an elastic lifeline, characterized in that the weaved fiber (weaved). The method of claim 1, The elastic tube is an elastic lifeline, characterized in that the knitted yarn (knitted). The method of claim 1, The core is an elastic lifeline, characterized in that folded in the width direction. The method of claim 1, The core material is a stretched lifeline, characterized in that a loop (loop) is formed at both ends thereof. The method of claim 5, Elastic lifeline, characterized in that the sewing is formed so that at least one end of the core end in a twisted state at both ends.

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