KR20160146061A

KR20160146061A - Structure for fall protect

Info

Publication number: KR20160146061A
Application number: KR1020150082647A
Authority: KR
Inventors: 임태진
Original assignee: 삼성중공업 주식회사
Priority date: 2015-06-11
Filing date: 2015-06-11
Publication date: 2016-12-21

Abstract

A fall prevention structure is provided. The fall prevention structure includes: a vertical bar; a hollow body surrounding the vertical bar; and a deflection latch including an elastic extension extending outwardly from the hollow body; and a safety collar surrounding the vertical bar. With such a configuration, the present invention can prevent a risk of a fall that may occur when releasing or fastening a safety collar by a worker during a high-altitude work using a ladder.

Description

{Structure for fall protect}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fall preventive structure, and more particularly, to a fall preventive structure in a high altitude work.

In order to perform operations such as various machining, for example welding and painting, on the outer surface of a large structure, especially a large-scale structure such as a ship, the operator must approach the entire outer surface of the large structure, It is necessary to carry out a complaint operation which is a work on the outer surface of the huge structure at the position.

Typically, the operator uses a ladder placed on the exterior of the structure to approach the high position of the outer surface of the large structure and perform the necessary work.

Korean Published Patent Application No. 10-2002-0001693

When an operator performs a complaint using a ladder, the operator fixes the safety ring assembly fixed to a part of the body of the worker to a ladder or other structure in order to prevent the worker from falling off or falling. However, when the worker moves to another work point after work, the safety loop fixed to the ladder must be unlocked. At this time, the worker must be exposed to the risk of falling or dropping occurring when the safety loop is fastened while moving or moving the work point .

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a fall preventive structure that prevents an operator from falling even when an operator moves.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a fall preventive structure including: a vertical bar; A hollow body surrounding the vertical bar and an elastic extension extending outwardly from the hollow body; And a safety collar surrounding the vertical bar.

In addition, the elastic extension extends obliquely outwardly in the radial direction of the hollow body and along the vertical bar.

Further, the elastic extension portion has a leaf shape whose end portion is narrowed along the extending direction.

The joint between the elastic extension portion and the hollow body is elastically deformed by an external force.

Further, the deflection latching portion restricts the movement of the safety collar to the lower portion along the vertical bar, without restricting the movement of the safety collar to the upper portion along the vertical bar.

The deflection latching portion may further include a first fixing opening formed in the hollow syringe body, and the vertical bar may include a plurality of second fixing openings formed along the vertical bar, And is fixed on the vertical bar by a fixing pin passing through both of one of the two fixing openings and the first fixing opening aligned with one of the plurality of second fixing openings.

The apparatus further includes a safety rope connected to the safety collar and a safety belt connected to the safety rope.

Other specific details of the invention are included in the detailed description and drawings.

1 is a side view schematically showing a fall prevention structure according to an embodiment of the present invention installed on an outer surface of a grand structure together with a ladder.
2 is an exemplary view illustrating an example in which an operator climbs a ladder using a fall prevention structure according to an embodiment of the present invention.
3 is a perspective view showing a part of a fall prevention structure according to an embodiment of the present invention in a high altitude operation state.
FIG. 4 is a perspective view illustrating a part of the fall prevention structure according to an embodiment of the present invention when moving upward. FIG.
5 is a perspective view of an elastic engagement portion of a fall prevention structure according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

Also, terms used herein are for the purpose of illustrating embodiments and are not intended to limit the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It should be understood that the terms comprising and / or comprising the terms used in the specification do not exclude the presence or addition of one or more other elements, steps and / or operations in addition to the stated elements, steps and / use. And "and / or" include each and any combination of one or more of the mentioned items.

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

FIG. 1 is a side view schematically showing an anti-fall structure according to an embodiment of the present invention installed on an outer surface of a grand structure together with a ladder 10. Fig. 2 is an exemplary view showing an example in which the worker W climbs the ladder 10 using the fall prevention structure according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, the fall prevention structure according to an embodiment of the present invention includes a vertical bar 100, a deflection latch 200, and a safety collar.

In FIG. 1, the outer wall 30 of the building is illustrated as a grand structure. However, this is merely an example, and it is needless to say that the huge structure may be other structures such as a ship and a large tank. The vertical bar 100 may extend vertically from the bottom to the top of the outer wall 30 of the building.

In the illustrated embodiment, a ladder 10 for lifting and lowering the worker W is attached to the outer wall 30 of the building, and the ladder 10 and the vertical bar 100 can be vertically arranged in parallel with each other.

The deflection latching unit 200 may be fixedly disposed on the vertical bar 100 surrounding the vertical bar 100. A plurality of deflection latches 200 may be disposed on the vertical bar 100 at a predetermined distance.

The safety collar can be moved along the vertical bar 100 surrounding the vertical bar 100. In particular, the safety hook can be moved upwardly beyond the vertical bar 100, as well as the deflection latch 200.

The deflection latch 200 according to the present invention restricts the movement of the safety collar in one direction only (deflection), for example, without restricting the movement of the safety collar from the bottom to the top, You can limit your movement. In other words, the deflection latching unit 200 does not restrict the worker W to which the part of the body is fixed to the safety rope 310 connected to the safety collar and the safety collar, ) To the bottom of the vehicle.

The vertical bar 100 may be fixedly attached to an outer wall 30 of a building, a floor, or other structure. In the embodiment shown in FIG. 1, it is illustrated that the vertical bar 100 is fixed to the ladder 10 via the connecting legs 40.

In the example of FIG. 2, the safety collar is connected to the safety rope 310 and the safety rope 310 is connected to the safety belt 320. The worker W can be prevented from falling due to the safety ring and the action of the deflection latch 200 when a situation such as slipping on the ladder 10 occurs by wearing the seat belt 320. [

3 is a perspective view showing a part of a fall prevention structure according to an embodiment of the present invention in a high altitude operation state. FIG. 4 is a perspective view illustrating a part of the fall prevention structure according to an embodiment of the present invention when moving upward. FIG. 5 is a perspective view of an elastic engagement portion of a fall prevention structure according to an embodiment of the present invention.

3 to 5, the deflection latch 200 according to an embodiment of the present invention includes a hollow body 210, an elastic extension 220, and a first fixing opening 230. [

The hollow body 210 is a hollow member surrounding the vertical bar 100. The hollow body 210 can engage with the vertical bar 100 by fitting the vertical bar 100 at at least one end of the vertical bar 100. The hollow body 210 is movable along the vertical bar 100 and can be fixed to the vertical bar 100 at a predetermined position on the vertical bar 100.

The hollow hull body may be formed of a material having sufficient rigidity to support the weight of the worker W when the worker W falls or falls. For example, the hollow hull body may be made of steel, aluminum Or an alloy thereof.

The elastic extension 220 may extend outward from at least a portion of the hollow body 210. In addition, the elastic extension 220 may extend obliquely outwardly in the radial direction of the hollow body 210 and upwardly along the vertical bar 100.

In one embodiment of the present invention, the resilient extension 220 includes an upper portion of the hollow body 210 surrounding the vertical bar 100, an upper portion of the rotor, And may have a leaf shape in which the end portion is narrowed. The joint between the elastic extension 220, particularly the elastic extension 220 and the hollow body 210, can be resiliently deformed inward radially toward the vertical bar 100 by an external force.

3, when the worker W is moving upward by using the ladder 10 during the elevation work, the safety collar is installed between the deflection latching portion 200 and the vertical bar 100, And the safety collar is sandwiched between the deflection latching portion 200 and the vertical bar 100 and can be restricted from moving downward in a situation where the worker W falls or the like.

4, while the worker W is moving upward by using the ladder 10, the deflection latching portion 200 can be elastically deformed toward the vertical bar 100, The distance between the free end of the portion 220 and the vertical bar 100 can be reduced.

That is, by elastically deforming the elastic extension part 220, the distance between the free end of the elastic extension part 220 and the center axis of the vertical bar 100 can be smaller than or equal to the radius of the safety loop, And can be moved upward through the deflection latching part 200 and the elastic extension part 220 thereof.

The elastic deformation of the elastic extension part 220 can be caused by an external force due to a safety loop pulled upward by an operator or an external force exerted directly by a worker.

In addition, the vertical bar 100 may include a plurality of second fixing openings 110 formed at regular intervals.

The first fixing opening 230 is formed in the hollow body 210 and the first fixing opening 230 can be aligned with one of the plurality of second fixing openings 110 on the vertical bar 100, The fixing pin 240 can be inserted through the first fixing aperture 110 and the second fixing aperture 110 in the alignment state of one of the first fixing aperture 230 and the second fixing aperture 110. [ By inserting the fixing pin into the first fixing opening 230 and the second fixing opening 110, the deflection latching portion 200 can be fixed and supported in place on the vertical bar 100, , It is possible to limit the downward movement of the safety hook connected to the operator.

The deflection latch 200 is movable along the vertical bar 100 on the vertical bar 100 and can be fixed at a desired position. In addition, the worker W or the work manager may appropriately consider the number of the deflection latches 200 arranged on the vertical bar 100 and the interval thereof, taking into consideration the degree of difficulty of the work, the time of the work or the height of the work, Can be adjusted.

In addition, the worker W does not need to perform separate safety ring fastening and releasing operations at the time of high-altitude movement and work, and the risk factors associated therewith can be eliminated. Furthermore, since the structure of the present invention does not have a complicated shape, it is possible to reduce the maintenance factor such as the failure of the structure or the fatigue breakage which may be caused thereby, and the installation can be provided with simplicity.

In the illustrated embodiment, the vertical bar 100 is in the shape of a cylinder, and the deflection latch 200 and the safety collar are illustrated as having a circular hollow shape. However, the present invention is not limited thereto. In the fall preventing structure according to the present invention, the vertical bar 100 may be square, rectangular, or a long bar or rod structure having a cross section such as a triangle or a pentagon. Accordingly, the hollow shape of the deflection latching portion 200 and the safety ring may be formed to have a corresponding cross-sectional shape.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10: Ladder 20: Fall prevention structure
100: vertical bar 200: deflection latching part

Claims

Vertical rods;
A hollow body surrounding the vertical bar and an elastic extension extending outwardly from the hollow body; And
And a safety collar surrounding the vertical bar.

The method according to claim 1,
Said resilient extension extending obliquely upwardly along said vertical bar.

3. The method of claim 2,
Wherein the elastic extension portion has a leaf shape whose end portion is narrowed along the extending direction.

3. The method of claim 2,
Wherein the elastic extension portion and the joint portion of the hollow body are elastically deformed by an external force.

The method according to claim 1,
Wherein the deflection latches restrict movement of the safety collar downwardly along the vertical bar without restricting movement of the safety collar upwards along the vertical bar.

The method according to claim 1,
Wherein the deflection latching portion further comprises a first fixing opening formed in the hollow syringe body,
Wherein the vertical bar includes a plurality of second fastening openings formed along the vertical bar,
Wherein the deflection latching portion is fixed on the vertical bar by a fixing pin passing through both of the plurality of second fixing openings and the first fixing opening aligned with one of the plurality of second fixing openings, structure.

The method according to claim 1,
Further comprising a safety rope connected to the safety collar and a seat belt connected to the safety rope.