KR101851581B1

KR101851581B1 - Apparatus for fixing foot plate of rope ladder

Info

Publication number: KR101851581B1
Application number: KR1020150175558A
Authority: KR
Inventors: 장도영
Original assignee: 주식회사 이엠텍
Priority date: 2015-12-10
Filing date: 2015-12-10
Publication date: 2018-04-24
Also published as: KR20170068733A

Abstract

The present invention relates to a footrest fastening device for a ladder.
The present invention relates to a ladder having a footrest fixing device fixed to a sling for fixing a footrest to a sling, wherein a footrest fixing device fixed to the sling includes a coupling part into which the footrest is inserted and coupled, And a cover for press-fitting the rope with the bolt is fastened to the insertion port. Thus, the pedestal fixing device to which the footrest is coupled can be easily and easily fixed to the rope, and the manufacturing of the rope ladder can be simplified The footrest fixing device fixed to the sling is pressed and fixed to the squeezing protrusion formed on the insertion port and the sling inserted into the press-fitting protrusion formed on the cover, so that the footrest fixing device is not easily separated from the sling, .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a foot ladder,

The present invention relates to a footrest fastening device for a ladder, and more particularly, to a footrest fastening device for a ladder so that a fastening device to be fastened for joining a footrest to a line can be easily and easily fixed to the line.

Generally, the ladder is one of the safeguards to be used for evacuation or work in case of an emergency in a high-rise building or a ship.

According to Korean Patent No. 10-0828134 (hereinafter referred to as " rope-to-footboard connecting device "), the rope is connected to a footrest by a foot fastener, A tube portion which connects guide holes formed at a lower portion and into which a plurality of ropes are inserted; a latch portion formed outside the lower portion of the tube portion to hook the lower end of the foot plate; and a plurality of ropes And a wedge for opening a gap between the plurality of ropes so that the rope in the tube portion does not come out of the guide hole, the wedge being divided into two or more, joined by a hinge, inserted between the plurality of ropes, And a wedge.

In the above-described conventional technique, the footrest can be easily fixed to the rope by inserting the footrest fastener into the footrest without the footrest, thereby greatly shortening the time required for assembling and fastening the footwalker. However, The staple fastening means includes a tube portion passing through a plurality of ropes, a hook portion for hooking the lower end of the footplate, a wedge for widening between a plurality of ropes passing through the tube portion, the wedge being coupled by a hinge, The foot fastener being fixed to the plurality of ropes has a separate joint wedge between a plurality of ropes and a plurality of ropes so as to prevent the rope from being separated from the plurality of ropes, It has a complicated and cumbersome problem of fixing and fixing the stopper.

In addition, in the prior art, since the foot fastener for fixing the footrest to the rope is fixed to a plurality of ropes, the use amount of the rope due to the use of a plurality of ropes increases, resulting in a large production cost. It is not easy to move and installation is not easy.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a fixing device for fixing a footrest to a sling easily and easily.

Another object of the present invention to solve the above problems is to simplify the assembly of the ladder by simply configuring the fixing device for fixing the footrest to the sling.

The means of the present invention for solving the above-mentioned problems is characterized in that it comprises a sling, a footrest, and a coupling member fixed to the sling and having the footplate inserted and coupled at one side thereof, an insertion port longitudinally provided at the other side thereof, And a footstock fixing device fixed to the installation surface with a cover spaced apart from the installation surface by a predetermined distance, the footstock fixing device being fastened to the insertion port by a bolt,
The coupling hole may be formed in a shape and size corresponding to the shape and size of the foot plate. The coupling hole may be formed in a shape such that one end or the other end of the foot plate is inserted and coupled, Wherein the first insertion groove is formed in a semicircular shape for receiving a sling to be inserted therein and the insertion hole is provided at an inner side of the first insertion groove, And a first fastening hole provided on one side and the other side of the compression protrusion, respectively. The cover has a second seating groove provided in a semicircle for seating a sling to be inserted therein, 2 press-fit protrusions protruding from the inner surface of the seating groove and press-fitting in a direction orthogonal to the slack to be inserted, one side of the press- It characterized in that it comprises a second fastening holes fastened to the first coupling holes provided in the insertion slot.

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In the means of the present invention, the insertion port may further include a ring-shaped packing inserted and supported at upper and lower ends of the first seating groove to form a frictional force with the sling.

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According to an aspect of the present invention, there is provided a foot ladder having a footrest fixing device fixed to a sling for fixing a footrest to a sling, the footrest fixing device being fixed to the sling, The footrest fixing device to which the footrest is coupled can be easily and easily fastened to the sling by fastening the insertion hole for squeezing the sling inserted into the other side and the cover for press fitting the sling with the bolt into the insertion hole, It is possible to simplify the production.

In addition, since the footrest fixing device fixed to the sling fastens the squeezing protrusions formed on the insertion port and the sling inserted into the press-fitting protrusions formed on the cover, the footrest fixing device is not easily separated from the sling, .

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an overall perspective view of the present invention ladder;
Fig. 2 is an exploded perspective view of the footrest fixing device of the present invention ladder.
Fig. 3 is a longitudinally coupled elevational view of the footrest fastening device of the present invention ladder.
Fig. 4 is a view showing another embodiment of the footrest fixing device of the present invention ladder
Fig. 5 is a plan view of the coupling state diagram of Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an overall perspective view of the present invention ladder.

1, the string ladder 100 includes a pair of sleds 10, a footrest fixing device 20 inserted and fixed to the pair of sleds 10, And a footrest 30 fixed thereto.

Here, the sling 10 is made of a lightweight synthetic resin material which is different from ordinary nylon or saddle-like sling and thin, has a flame resistance, abrasion resistance and flame retardancy.

The footrest fixing device 20 may be made of any one of a lightweight synthetic resin or a metal material having flame resistance and abrasion resistance without being easily slid or separated from the pair of slinges 10.

The footrest 30 is made of any one of lightweight metal material or synthetic resin having flame retardancy, abrasion resistance, load resistance and strength, and the footrest 30 is rotated and moved from the footrest fixing device 20 by a load So that it does not occur.

The lower ladder 100 is installed in a building, a ship, or a place where an emergency escape is required. When the emergency ladder or emergency occurs, the upper end of the rope 10 is fixed to the building or ship, At this time, the unfolded ladder 100 is installed in a state of being separated from the wall surface by the footrest fixing device 20 fixed to the pair of sleds 10, so that the user can take out the pair of sleds 10 And can safely ascend or descend by pressing the footrest (30).

FIG. 2 is an exploded perspective view of the footrest fixing device of the present invention ladder, and FIG. 3 is a longitudinal sectional view of the footrest fixing device of the present invention ladder.

As shown in FIG. 2, the footrest fixing device 20 includes a coupling hole 21 to which the footrest 30 is inserted and fixed by a bolt, and on the other side, (22) and is provided with a support (23) which is spaced apart from the installation surface at a predetermined distance on either side of the insertion port (22), and a rope As shown in Fig.

In the footrest fixing device 20, the footrest 30 is inserted into the coupling hole 21, the sling 10 is inserted into the insertion hole 22, and the insertion hole 22 into which the sling 10 is inserted By fastening the bolt-on cover 24, the footrest securing device 20 is secured to the sling 10.

The footrest fixing device 20 fixed to the sling 10 is spaced apart from the installation surface by a predetermined distance by a support 23 so that the footrest 30 coupled to the coupling 21 is installed So that the footrest 30 can easily be stepped on or lowered.

The coupling hole 21 is formed in a shape and size corresponding to the shape and size of the footrest 30 to which the footrest 30 is coupled and fixed. And a fastening hole 212 for fastening the foot plate 30 inserted in the concave groove 211 with bolts.

One end or the other end of the foot plate 30 is inserted into the coupling hole 21 by the concave groove 211 and the foot plate 30 inserted into the concave groove 211 is inserted into the concave groove 211 So that the foot plate 30 is fixed to the coupling hole 21 so as not to pivot or move. Thus, the user can safely lower or climb the foot plate 30 by stepping on the foot plate 30.

The insertion port 22 is provided on the inner surface of the first seating groove 221 formed in a semicircle for receiving the sling 10 to be inserted therein and is press-fitted in a direction orthogonal to the sling 10 to be inserted. And a first fastening hole 223 formed at one side and the other side of the pressing projection 222. The first fastening hole 223 is formed at one side and the other side of the fastening protrusion 222,

The insertion port 22 supports the sling 10 inserted into the first seating groove 221 with at least one squeezing protrusion 222 provided on the inner surface in a direction orthogonal to the sling 10 The sling 10 to be inserted into the insertion port 22 when the cover 24 to be described later is fixed to the insertion port 22 can be easily slipped or pulled out by the action of a strong frictional force by the one or more crimping projections 222 .

The insertion port 22 has a ring-shaped packing 25 inserted into and supported by the upper and lower ends of the first seating groove 221 and having a friction force with the sling 10.

The packing 25 may be made of rubber, silicone or urethane.

Therefore, the sling 10 inserted into the first seating groove 221 of the insertion port 22 has frictional force by the ring-shaped packing 25, and when the cover 24 to be described later is engaged, The sling 10 can be prevented from slipping or departing from the first receiving groove 221 so that the sling 10 can be firmly fixed to the insertion port 22. [

The support 23 is integrally formed with one side of the insertion port 22 so that the support plate 30 coupled to the coupling hole 21 is spaced apart from the installation surface at a predetermined interval As shown in FIG.

Therefore, the user can install and support the footrest 30 in a state where the footrest 30 is separated from the installation surface by the support member 23, thereby making it easier to raise and lower the footrest 30 safely.

The cover 24 has a second seating groove 241 formed in a semicircular shape for seating the sling 10 to be inserted inward. The cover 24 includes a second seating groove 241 formed on the inner surface of the second seating groove 241, And a press-fit protrusion 242 protruded to be press-fit in a direction orthogonal to the first press-fitting protrusion 242. The press-fitting protrusion 242 is provided on one side and the other side of the press- Two fastening holes 243 are provided.

As shown in FIG. 3, the cover 24 includes the second fastening hole 243 formed in the cover 24 and the first fastening hole 223 of the insertion hole 22, The press-fit protrusion 242 formed on the inner surface of the cover 24 strongly presses one side of the sling 10 supported by the one or more squeezing protrusions 222 on the inner surface of the insertion port 22, Is pressed and fixed in a bent state by the at least one crimping projection 222 of the insertion port 22 and the press fitting projection 242 of the cover 24 so that the sling 10 slips or departs from the insertion port 22 .

FIG. 4 shows another embodiment of a footrest fixing device for a ladder of the present invention, and FIG. 5 is a combined state view of FIG. .

As shown in FIG. 4, the footrest fixing device 20 of the present invention is provided separately from the insertion port 22 by a support 23 for supporting the footrest 20 at a predetermined distance from the installation surface.

The support 23 is inserted into the sling 10 to be inserted into the first seating groove 221 of the insertion port 22 and is coupled to the upper end of the first seating groove 221 by a hinge And a supporting bar 232 integrally formed with the hinge 231 and spaced from the mounting surface and fixed to the insertion port 22. [

5, the support 23 has a hinge 231 which is pivotally connected to the sling 10 inserted into the first seating groove 221 of the insertion port 22 The supporting bar 232 integrally formed with the hinge 231 rotates along the hinge 231 and the rear end is fixed to the insertion port 22 so that the ladder 100 is supported by the supporting bar 232 It is installed at a distance from the installation surface.

When the support bar 232 is folded toward the foot plate 30, the support bar 232 is pivoted about the hinge 231 and the foot plate 30 is inserted into the hinge 231 The supporting bar 232 does not protrude from the side of the string ladder 100 to reduce the overall size of the string ladder 100 and the string ladder 100 can be easily rolled As a matter of course, the curled ladder 100 is formed by the support bar 232 which is not protruded, so that the entire length of the ladder 100 can be easily reduced.

100; Line ladder 10; rope
20; A footrest fixing device 21; Junction
211; Grooves 212; Fastener
22; Insertion port 221; The first seating groove
222; A pressing projection 223; The first fastening hole
23; District 231; Hinge
232; Support bar 24; cover
241; A second seating groove 242; Indentation projection
243; A second fastening hole 25; Packing
30; Scaffolding

Claims

A sling, a footrest, and a sock that is fixed to the sling and has one side to which the footplate is inserted and to be inserted, a longitudinally provided insertion hole on the other side of the sling and an insertion port into which the sling is inserted, And a foot fixing device fixed by a cover which is fastened with the insertion port and the bolt to press-fit the sling,
The coupling hole may be formed in a shape and size corresponding to the shape and size of the foot plate. The coupling hole may be formed in a shape such that one end or the other end of the foot plate is inserted and coupled, And a fastening hole,
The insertion port includes a first seating groove provided on the inner surface of the first seating groove for receiving the sling to be inserted therein, at least one squeezing member provided on the inner surface of the first seating groove for pressing in a direction orthogonal to the sling to be inserted, And a first fastening hole provided on one side and the other side of the pressing projection,
The cover includes a second seating groove provided in a semicircle for seating a sling to be inserted therein, a press-in projection protruding from an inner surface of the second seating groove and press-fitting in a direction orthogonal to the slack inserted, And a second fastening hole which is fastened to the first fastening hole provided on the insertion port on one side and the other side of the fastening hole.

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The method according to claim 1,
Wherein the insertion port further comprises a ring-shaped packing inserted and supported at upper and lower ends of the first seating groove to form a frictional force with the sling.

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