KR200412243Y1 - Ladder - Google Patents

Abstract

The present disclosure relates to a ladder having a railing on top of a ladder having a working platform to reduce the risk of falling of the operator.

The ladder may include a first support angle 110 having a "c" shaped railing 112 fixed to a top of a pair of vertical bars 114 spaced by a plurality of horizontal bars 116, and a plurality of horizontal bars 116. A second support angle 120 having a pair of vertical bars 122 fixed by a bar 124 spaced apart by a predetermined distance and having an upper end thereof fixed to an opposite side of the first support angle 110 of the handrail 112 is provided. ; And, a plate-shaped working scaffold 130 fixed to the upper horizontal bars 116 and 124 of the first support angle 110 and the second support angle 120.

Ladders, handrails, scaffolding,

Description

Ladder {Ladder}

1 is a perspective view of the ladder of the present invention,

2 is an exploded perspective view of the ladder of the present invention,

3 is a cross-sectional view of the ladder of the present invention,

Figure 4 is a cross-sectional view of the action of the subject innovation ladder.

※ Explanation of code for main part of drawing

110: first support angle, 112: handrail, 114: vertical bar,

116: horizontal bar, 120: second support angle, 122: vertical bar,

124: horizontal bar, 126: support, 130: working scaffolding,

131a, 131b: first and second scaffolding, 132: hinges, 133: fasteners,

134: guide groove, 135: fixing bar, 135a: elastic member,

135b: Handle

The present invention is to provide a ladder on top of the ladder having a working scaffold to reduce the risk of falling of the worker, and to allow the working scaffold to be folded together with the ladder easy to carry and store.

In general, ladders are constructed by placing two long pillar members in parallel and combining a plurality of horizontal bars having a short length between the pillar members at regular intervals, and in the case of folding ladders, the horizontally coupled pillar members as described above. Use the hinges to connect the two pairs, and then move them apart to match their positions.

When working on such a ladder, the worker steps up on the horizontal bar of the ladder that is opened and climbs to a high place, and works on the ladder. There is a problem of falling.

The present invention has been made to solve the above problems is to provide a ladder with a work step and guardrail on the top of the ladder to secure the work space of the worker and to form a handrail to reduce the risk of falling.

The ladder of the present invention has a purpose to provide a ladder to be folded with the ladder to facilitate carrying and storage, and to prevent the folded working scaffold to be arbitrarily folded by the load of the operator.

It is also an object of the present invention to provide a ladder that prevents the movement of the fixed bar to connect / fix the work step divided for folding so as not to be folded.

Ladders according to the present invention for achieving the above object is a first support angle is fixed to the top of a pair of vertical bar spaced by a plurality of horizontal bars of the "c" shaped railings; A second support angle having a pair of vertical bars fixed so as to have an upper end fixed to an opposite side of the first support angle of the handrail; And, it is achieved by providing a ladder comprising a; a plate-shaped working scaffold fixed to the upper horizontal bar of the first support angle and the second support angle.

The second support angle of the ladder of the present invention is fixed to the railing to the upper end is a hinge pin, the working foot is preferably divided into a first, second foot to be folded by a hinge.

Here, the first and second scaffold is preferably provided with a guide bar, the sliding bar on the guide groove is preferably provided with a fixing bar for connecting / fixing the first, second scaffold selectively.

In addition, the fixing bar is a ladder, characterized in that to form an elastic member elastically supported on the inner side of the guide groove.

On the other hand, the second support angle of the ladder of the present invention is preferably to form a support on both sides of the lower end.

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

2 is a perspective view of the ladder of the present invention, Figure 3 is an exploded perspective view of the ladder of the present invention.

The ladder according to the present invention as shown in the drawings has a first crust 110 forming a handrail, a second support angle 120 rotatably fixed to the handrail, and first and second support angles 110 and 120. It is composed of a working scaffold 130 is fixed to the upper side.

The first support angle 110 is a "c" shaped handrail 112, a pair of vertical bars 114 inclined fixed to one side of the handrail 112, and a plurality of connecting the vertical bars 114 It consists of a horizontal bar (116).

The second support angle 120 is a pair of vertical bars 122 whose upper end is rotatably fixed to the opposite side of the first support angle 110 of the handrail 112 by a hinge pin (P), the vertical bar Comprising a plurality of horizontal bars 124 connecting between the 122, and the support 126 is formed extending to both sides of the bottom of the vertical bar (122).

The working scaffold 130 has a pair of first and second scaffolds 131a and 131b formed with guide grooves 134 on both sides and foldably connected by a hinge 132, and the first and second scaffolds ( 131a and 131b are fixed to the horizontal bars 114 and 122 of the first and second support angles 110 and 120, respectively, to be rotatably fixed, and a handle 135b is formed on one side and the second side scaffold ( A fixed bar 135 inserted into the guide groove 134 of the 131b and sliding into the guide groove 134 of the first scaffold 131a to limit folding of the first and second scaffolds 131a and 131b; The fixing bar 135 is made of an elastic member 135a fixed on the fixing bar 135 to elastically support the inner surface of the guide groove 134 to prevent the sliding bar 135 from sliding arbitrarily on the guide groove 134.

Hereinafter, look at the action of the subject innovation ladder having the above configuration.

4 is a cross-sectional view of the ladder of the present invention, Figure 5 is a cross-sectional view of the operation of the ladder of the present invention.

As shown in FIG. 4, the vertical bar 114 of the first support angle 110 is fixed to one side of the handrail 112 to be inclined, and the other side of the vertical bar 122 of the second support angle 120 is disposed. The first and second scaffolds 131a and 131b of the work scaffold 130, which are fixed to the hinge pin P and are rotatably fixed and connected to the hinge 132 and are foldable, are fixed by the fastener 133. Both ends of the fixing bar 135 are fixed to the upper horizontal bars 116 and 124 of the first and second supporting angles 110 and 120, respectively, and with guide grooves 134 formed at both sides of the first and second scaffoldings 131a and 131b. Each insertion is limited to the folding of the working step 130.

The fixed bar 135 slides from the guide groove 134 of the second scaffold 131b as the user grasps the handle 135b and moves the tip thereof to the guide groove 134 of the first scaffold 131a. The insertion limits the folding of the first and second scaffolds 131a and 131b. Since the elastic member 135a fixed to one side is elastically supported on the inner side of the guide groove 134, arbitrary movement is limited. Therefore, the tip of the fixing bar 135 is prevented from being arbitrarily separated from the guide groove 134 of the first scaffold 131a.

In this way, the state in which the opening of the second support angle 120 is limited from the first support angle 110 by the working footrest 130 is maintained in the state in which the first and second support angles 110 and 120 and the working footrest 130 are unfolded. Being able to stand stably on the ground, the worker stepped on the footrest 130 by stepping on a plurality of horizontal bars 116 connecting between the vertical bars 114 of the first support angle (110) railing ( 112) grab and work safely.

In addition, the support bar 126 extending to both sides of the bottom of the vertical bar 122 of the second support angle 120 is in contact with the ground to prevent the ladder from falling even if the load of the worker is inclined to one side.

In such a case, when the folding and storage is to be stored as shown in FIG. 5, first, the first and second scaffolds 131a and 131b of the working scaffold 130 are inserted to overlap the guide grooves 134 to limit the folding. The fixed bar 135 is pulled back by holding the handle 135b so that the tip is separated from the guide groove 134 of the first scaffold 131a.

When the first and second scaffolds 131a and 131b connected by the hinge 132 are folded, the first and second scaffolds 131 and 131b are fixed to the upper horizontal bars 116 and 124 of the first and second support angles 110 and 120, respectively. The second scaffold 131a and 131b are rotated while being folded, and thus the second support angle 120 connected to the second scaffold 131b by the fastener 133 is fixed to the handrail 112. It is folded while rotating about the hinge axis P of the upper end.

The ladder according to the present invention as described above has the effect of reducing the risk of falling by forming a handrail while securing a work space of the worker by providing a working scaffold and a railing on the upper part of the ladder.

The ladder of the present invention has the effect that it is easy to carry and store by folding the working step together with the ladder.

In addition, there is an effect of preventing the folded working scaffold to be arbitrarily folded by the load of the operator.

In addition, there is also an effect of improving the safety by preventing the fixed bar connecting the divided working scaffold to be arbitrarily moved for folding.

Claims (5)

In the ladder, A first support angle 110 on which a "c" shaped handrail 112 is fixed on the top of a pair of vertical bars 114 spaced at regular intervals by a plurality of horizontal bars 116; A second support angle having a pair of vertical bars 122 fixed by a plurality of horizontal bars 124 spaced apart by a predetermined distance, and having an upper end thereof fixed to an opposite side of the first support angle 110 of the handrail 112 120; And, Ladder comprising a; work plate 130 of the plate-shaped fixed to the upper horizontal bar (116,124) of the first support angle (110) and the second support angle (120). The method of claim 1, The second support angle 120 is rotatably fixed to the railing 112 with a hinge pin (P) at the upper end, and the working scaffold 130 is divided into first and second scaffolds 131a and 131b. Ladder characterized in that folded by the hinge (132). The method of claim 2, The first and second scaffolds 131a and 131b form guide grooves 134 and are fixed on the guide grooves 134 to selectively connect / fix the first and second scaffolds 131a and 131b. Ladder comprising a bar (135). The method of claim 3, wherein The fixing bar 135 is a ladder, characterized in that to form an elastic member (135a) that is elastically supported in the guide groove (134) inside. The method of claim 1, The second support angle 120 is a ladder, characterized in that to form a support (126) on both sides of the lower end.

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