KR20120109170A - Scaffolding ladder - Google Patents

Scaffolding ladder Download PDF

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Publication number
KR20120109170A
KR20120109170A KR1020110027471A KR20110027471A KR20120109170A KR 20120109170 A KR20120109170 A KR 20120109170A KR 1020110027471 A KR1020110027471 A KR 1020110027471A KR 20110027471 A KR20110027471 A KR 20110027471A KR 20120109170 A KR20120109170 A KR 20120109170A
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KR
South Korea
Prior art keywords
ladder
handrail
hinge
footrest
pipe
Prior art date
Application number
KR1020110027471A
Other languages
Korean (ko)
Inventor
권택철
Original Assignee
권택철
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 권택철 filed Critical 권택철
Priority to KR1020110027471A priority Critical patent/KR20120109170A/en
Publication of KR20120109170A publication Critical patent/KR20120109170A/en

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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/39—Ladders having platforms; Ladders changeable into platforms
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/16—Platforms on, or for use on, ladders, e.g. liftable or lowerable platforms
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/181—Additional gripping devices, e.g. handrails
    • E06C7/182—Additional gripping devices, e.g. handrails situated at the top of the ladder
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
    • E04G1/30—Ladder scaffolds
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
    • E04G2001/242—Scaffolds movable on wheels or tracks

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Abstract

PURPOSE: A scaffolding ladder is provided to prevent the end of a railing and the end of a ladder from being exposed to the outside. CONSTITUTION: A scaffolding ladder is comprised as follows. A step(10) is supported by first and second ladders(70,80). The lower plate(21) of a first hinge(20) is installed on one end of the step. A first railing(30) is installed on the upper plate(22) of the first hinge. The lower plate(41) of a second hinge(40) is installed on the other end of the step. A second railing(50) is installed on the upper plate(42) of the second hinge. The first and second railings face each other. The first hinge has a first rotation center shaft(23) separated from the top surface of the step. The second hinge has a second rotation center shaft(43) separated from the top surface of the step. The first and second rotation center shafts have different heights to be overlapped each other when the first and second hinges are folded.

Description

Uma-shaped ladder {SCAFFOLDING LADDER}

The present invention relates to a right-hand ladder used when a worker works on a high wall or ceiling, and more particularly, a first handrail is mounted by a first hinge on either side of the footrest and faces the first handrail. The second handrail of the beam is mounted on the other side end of the footrest by the second hinge, respectively, by varying the height at which the center of rotation of the first hinge is arranged on the footboard and the height at which the center of rotation of the second hinge is arranged on the footrest, The first handrail and the second handrail can be folded in the form of " = ", which relates to a right-hand ladder which can be carried conveniently and can prevent workers from falling during work.

Korean Utility Model Registration No. 20-0434960 (registered on December 22, 2006) introduces a "horse-shaped ladder".

The right horse ladder includes a scaffold that the user can step on and perform a predetermined work and a support that is hinged to both sides of the scaffold to support the scaffold, wherein the scaffold and the support are hinged. Equipped with a deployment fixing device for fixing the deployment state of the ladder to the combined portion.

However, the conventional uma ladder as described above is not only the handrail is installed, but when the support (leg) is folded for transport, the support is overlapped in the 'X' shape, and the bottom of the support protrudes to the outside, thereby carrying The lower end of the protruding support hung on other objects or walls, which was inconvenient to carry, and there was a risk of falling from the scaffold while the worker was working on the scaffold.

Accordingly, an object of the present invention is that a first handrail is mounted by either a first hinge to one side end of the footrest, and a second handrail facing the first handrail is mounted by a second hinge to the other side end of the footrest, respectively. By varying the height at which the pivot center axis of the first hinge is arranged on the scaffolding and the height at which the pivot center axis of the second hinge is arranged on the scaffolding, the first handrail and the second handrail can be folded in the form of "=", which is convenient to carry. And, to provide a wooma ladder that can prevent the fall of the worker during the work.

Another object of the present invention is a spacer member is mounted on the left end of the lower surface of the footrest, the left ladder is mounted on the spacer member by the first hinge, and the right ladder is mounted on the right end of the lower surface of the footrest by the second hinge. As a result, the arrangement heights of the first hinge and the second hinge are different by the spacer member, and the left ladder and the right ladder are completely superimposed in the form of "=", thereby preventing the bottom of the ladder from protruding to the outside. It is to provide a right-hand ladder that can prevent the lower end of the ladder from being caught in the surrounding objects when the worker carries the legs folded.

In the right-hand ladder according to the present invention for achieving the above object, the scaffold is supported by the first ladder and the second ladder, the lower plate of the first hinge is mounted on either side end of the scaffold, and the first hinge The first handrail is mounted on the upper plate of the first handrail, the lower plate of the second hinge is mounted on the other side end of the footrest, and the second handrail is mounted on the upper plate of the second hinge, and the first handrail and the second handrail are mutually The first handrail and the second are arranged so as to face each other by varying the height of the center of rotation of the first hinge spaced from the top of the footrest to the top and the height of the center of rotation of the second hinge spaced from the top of the foot to the top. When the handrail is folded, the first handrail and the second handrail are superimposed in the form of "=".

The first handrail has two first hinges each mounted at both ends of the side surfaces of the scaffold, the lower end of the pipe is mounted on the upper plate of the first hinge, and the vertical portion of the connecting pipe formed in the shape of "┏┓" is the upper end of the pipe. One of the plurality of fastening holes formed in the vertical part of the connecting pipe coincides with the engaging hole formed in the upper end of the pipe, and the pin is inserted into the coupling hole and the fastening hole so that the height can be adjusted. It is characterized in that coupled to.

One end of the connecting rod is rotatably mounted by a pin on the pipe of the first handrail, and a hook is mounted on the pipe of the second handrail, so that the hook portion of the connecting rod is caught by the catch.

The first handrail is characterized in that the vertical blocking plate is mounted to the bottom of the two pipes in order to prevent the tool placed on the scaffold falling off the scaffold.

In addition, the flax ladder according to the present invention, the spacer member is attached to the lower left end of the footrest, the upper end of the left ladder is connected to the lower surface of the spacer member by the first hinge, the right side of the lower end of the footrest The upper end of the ladder is connected by a second hinge, the thickness of the spacer member is equal to the thickness of the right ladder, the height of the right ladder is equal to the sum of the height of the left ladder and the thickness of the spacer member, so that the right ladder is folded and the left ladder is When folded, the right ladder and the left ladder is characterized in that overlapping "=" form.

The left ladder and the right ladder is characterized in that the caster is mounted to the height adjustable at the bottom.

As a result, when the right-hand ladder according to the present invention folds the first and second handrails, the left ladder and the right ladder, it completely overlaps in the form of "=", so that the end of the handrail and the end of the ladder protrude outwards. It can be prevented from being caught, and the worker can be prevented from being caught by the surrounding objects when carrying the first and second handrails, the left ladder and the right ladder in a state, and the convenience of carrying can be achieved. .

1 is a perspective view showing a right-hand ladder according to the present invention, the first and second prefabricated handrails stand.
Figure 2 is a side view showing a right horse ladder according to the invention.
Figure 3 is a perspective view of the right-hand ladder according to the present invention, the first and second prefabricated handrails are folded.
Figure 4 is a side view schematically showing a right horse ladder according to the invention
Figure 5 is a side view schematically showing the folded state of the ladder

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

1 to 2, in the right-hand ladder according to the present invention, the scaffold 10 is supported by the first ladder 70 and the second ladder 80, and at one side end of the scaffold 10. The lower plate 21 of the first hinge 20 is mounted, the first handrail 30 is mounted on the upper plate 22 of the first hinge 20, and the second side end of the other side of the footrest 10 is mounted. The lower plate 41 of the hinge 40 is mounted, and the second handrail 50 is mounted on the upper plate 42 of the second hinge 40 so that the first handrail 30 and the second handrail 50 are mounted. Are disposed to face each other, spaced apart from the upper surface of the height h1 of the central axis of rotation 23 of the first hinge 20 is spaced upward from the upper surface 11 of the footrest 10 and the upper surface of the footrest By varying the height h2 of the rotation center axis 43 of the second hinge 40, when the first handrail 30 and the second handrail 30 are folded, the first handrail 30 and the second handrail ( 50) are overlaid in the form "=".

The first hinge 30 has a rotation center axis 33 as close as possible to the upper surface 11 of the footrest 10 so that the upper plate 32 can be rotated at right angles about the rotation center axis 33. The lower plate 31 is fixed to either side of the scaffold 10 so as to. In addition, the second hinge 40 has a lower plate 41 so that the rotational center axis 43 is spaced upwardly on the upper surface 11 of the scaffold 10 by the pipe thickness t1 of the first handrail 20. It is fixed to the opposite side of the footrest (10).

Referring back to FIG. 1, the first handrail 20 has two first hinges 30 mounted at both ends of the side surfaces of the footrest 10, respectively, and on the upper plate 32 of the first hinge 30. The lower end of the pipe 21 is mounted, and the vertical part 24 of the connecting pipe 23 formed in a "┏┓" shape is fitted to the upper end of the pipe 21, and the vertical part 23 of the connecting pipe 23 is mounted. Any one of the plurality of fastening holes 24 formed in the coincidence coincides with the engaging hole 22 formed in the upper end of the pipe 21, and the pin 26 is fitted into the engaging hole 22 and the fastening hole 24 to adjust the height. The connecting pipe 23 is thus coupled to the two pipes 21.

In addition, the first handrail 20 has a vertical blocking plate 28 mounted on the bottom of the two pipes 21 to prevent the tool placed on the footrest 10 from falling off the footrest.

The second handrail 50 is configured in the same manner as the first handrail 20.

One end of the connecting table 60 is rotatably mounted to the pipe 21 of the first handrail 30 by the pin 61, and the latch 62 is mounted to the pipe 51 of the second handrail 50. Thus, the hook portion 60a of the connecting table 60 is caught by the latch 62.

Thereby, the connecting table 60 can be rotated about the pin 61, so that the worker who climbs up through the ladder can open the connecting table 60 and ascend to the footrest 10, and after climbing on the footrest 10, The hook portion 60a of the connecting table 60 is hooked on the latch 62 to close.

The right-hand ladder according to the present invention configured as described above establishes the first handrail 20 and the second handrail 50, and connects the first handrail 20 and the second handrail 50 with the connecting rod 60. By adjusting the heights of the connecting pipes of the first and second handrails 20 and 50, the operator can be prevented from falling from the footrest 10. When not in use or transported, as shown in FIG. 3, after disconnecting the connecting rod 60, the first handrail 20 is folded, the second handrail 50 is folded, and the first handrail ( 30) and the second prefabricated handrail 50 in the form of "=", when the operator carries the right-hand ladder according to the invention, it is possible to prevent the handrail from being caught on the outside object, the handrail is "X" The volume is smaller than when crossed in the form has the advantage that the operator can conveniently transport.

3 to 5, the right-hand ladder according to the present invention also has a spacer member 90 attached to a lower left end surface of the footrest 10, and a left ladder (on a lower surface of the spacer member 90). The upper end of the 70 is connected by the first hinge H1, the upper end of the right ladder 80 is connected by the second hinge H2 to the lower right end surface of the scaffold 10, and the spacer member 30 The thickness t2 is equal to the thickness t3 of the right ladder 80, and the height L2 of the right ladder 80 is the height L1 of the left ladder 70 and the thickness t2 of the spacer member 20. ), When the right ladder 80 is folded and the left ladder 70 is folded, as shown in FIG. 5, the right ladder 80 and the left ladder 70 overlap in a form of "=". .

The hinges H1 and H2 are already known and are schematically illustrated in the drawings, and various other types may be applied as well as the forms shown in the drawings.

The left ladder 70 and the right ladder 80 is mounted to the lower caster 100 is adjustable in height. That is, the support 101 of the caster 100 is fixed by the pin 103 in a state of being fitted to the lower ends of the pillars of the left ladder 70 and the right ladder 80, and the support 101 of the caster 100 is fitted. By adjusting the degree of loss, the overall length of the left ladder 70 and the right ladder 80 can be adjusted, and the right-hand ladder according to the present invention can be pushed and carried.

The right-hand ladder according to the present invention configured as described above prevents the bottom of the right ladder 80 and the bottom of the left ladder 70 from protruding outward when the right ladder 80 and the left ladder 70 are folded. Not only prevents the lower end of the right ladder 80 and the lower end of the left ladder 70 from being caught by an external object, but also the right ladder and the left ladder in the form of an "X" like a conventional right horse ladder. The volume is smaller than when crossed, there is an advantage that the operator can conveniently transport.

10: scaffold 20: first hinge
30: 1st handrail 40: 2nd hinge
50: second railing 60: connecting rod
70; First Ladder 80: Second Ladder

Claims (6)

The footrest 10 is supported by the first ladder 70 and the second ladder 80, and the lower plate 21 of the first hinge 20 is mounted on either side end of the footrest 10, The first handrail 30 is mounted on the upper plate 22 of the first hinge 20, the lower plate 41 of the second hinge 40 is mounted on the other side end of the footrest 10, and the second hinge The second handrail 50 is mounted on the upper plate 42 of the 40 so that the first handrail 30 and the second handrail 50 face each other, and the top surface 11 of the footrest 10 is disposed. Height h1 of the central axis of rotation 23 of the first hinge 20 spaced apart from the upper and h2 of the central axis of rotation 43 of the second hinge 40 spaced upward from the upper surface of the footrest By varying), when the first handrail 30 and the second handrail 30 are folded, the first handrail 30 and the second handrail 50 are stacked in the form of " = " .
The method of claim 1,
The first handrail 20 has two first hinges 30 mounted at both ends of the side surfaces of the scaffold 10, and the lower end of the pipe 21 is attached to the upper plate 32 of the first hinge 30. The vertical portion 24 of the connecting pipe 23, which is mounted and formed in a “┏┓” shape, is fitted to the upper end of the pipe 21, and the plurality of fastening holes formed in the vertical portion 23 of the connecting pipe 23 ( Any one of the 24 is coincident with the engaging hole 22 formed in the upper end of the pipe 21, the pin 26 is fitted into the engaging hole 22 and the fastening hole 24, the connecting pipe 23 so that the height can be adjusted Uma-shaped ladder, characterized in that is coupled to the two pipes (21).
The method of claim 2,
One end of the connecting table 60 is rotatably mounted to the pipe 21 of the first handrail 30 by the pin 61, and the latch 62 is mounted to the pipe 51 of the second handrail 50. And the hook portion 60a of the connecting table 60 is caught by the latch 62.
The method of claim 1,
The first handrail 20 is a right ladder, characterized in that the vertical blocking plate 28 is mounted to the bottom of the two pipes (21) in order to prevent the tools placed on the footrest falling from the footrest (10).
The method of claim 1,
The spacer member 90 is attached to the lower left end surface of the scaffold 10, the upper end of the left ladder 70 is connected to the lower surface of the spacer member 90 by a first hinge H1, and the scaffold ( The upper end of the right ladder 80 is connected to the lower end of the right end 10 by the second hinge H2, and the thickness t2 of the spacer member 30 is equal to the thickness t3 of the right ladder 80. When the height L2 of the right ladder 80 is equal to the sum of the height L1 of the left ladder 70 and the thickness t2 of the spacer member 20, the right ladder 80 is folded and the left ladder 70 is folded. When folded), the right ladder 80 and the left ladder 70, characterized in that overlapping in the form of "=".
The method of claim 5, wherein
The left ladder (70) and the right ladder (80) is a right-hand ladder, characterized in that the caster (100) is mounted to the height adjustable.
KR1020110027471A 2011-03-28 2011-03-28 Scaffolding ladder KR20120109170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110027471A KR20120109170A (en) 2011-03-28 2011-03-28 Scaffolding ladder

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Application Number Priority Date Filing Date Title
KR1020110027471A KR20120109170A (en) 2011-03-28 2011-03-28 Scaffolding ladder

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101434051B1 (en) * 2012-12-14 2014-08-27 한국항공우주연구원 The safety holder and the ladder with the safety holder
JP2016223106A (en) * 2015-05-28 2016-12-28 ジー・オー・ピー株式会社 Portable work bench
CN109267929A (en) * 2018-10-23 2019-01-25 唐钢美锦（唐山）煤化工有限公司 A kind of portable cargo train compartment bridge ladder
KR20220136761A (en) * 2021-04-01 2022-10-11 원종심 Scaffolding Ladder Available to be Combined with Ladders

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101434051B1 (en) * 2012-12-14 2014-08-27 한국항공우주연구원 The safety holder and the ladder with the safety holder
JP2016223106A (en) * 2015-05-28 2016-12-28 ジー・オー・ピー株式会社 Portable work bench
CN109267929A (en) * 2018-10-23 2019-01-25 唐钢美锦（唐山）煤化工有限公司 A kind of portable cargo train compartment bridge ladder
CN109267929B (en) * 2018-10-23 2024-01-16 唐钢美锦（唐山）煤化工有限公司 Portable freight train carriage bridge ladder
KR20220136761A (en) * 2021-04-01 2022-10-11 원종심 Scaffolding Ladder Available to be Combined with Ladders

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