KR20210104961A - A ladder with safety rail - Google Patents

A ladder with safety rail Download PDF

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Publication number
KR20210104961A
KR20210104961A KR1020200019355A KR20200019355A KR20210104961A KR 20210104961 A KR20210104961 A KR 20210104961A KR 1020200019355 A KR1020200019355 A KR 1020200019355A KR 20200019355 A KR20200019355 A KR 20200019355A KR 20210104961 A KR20210104961 A KR 20210104961A
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KR
South Korea
Prior art keywords
ladder
safety handrail
handrail
safety
fixing pin
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Application number
KR1020200019355A
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Korean (ko)
Inventor
방윤배
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방윤배
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Priority to KR1020200019355A priority Critical patent/KR20210104961A/en
Publication of KR20210104961A publication Critical patent/KR20210104961A/en

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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/18Devices for preventing persons from falling
    • E06C7/181Additional gripping devices, e.g. handrails
    • E06C7/182Additional gripping devices, e.g. handrails situated at the top of the ladder
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/18Devices for preventing persons from falling
    • E06C7/185Devices providing a back support to a person on the ladder, e.g. cages
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/50Joints or other connecting parts

Abstract

The present invention relates to a ladder with a safety handrail and, more specifically, to a ladder with a safety handrail, capable of enabling a worker to have psychological stability when working on a ladder due to a safety handrail installed in the top of the ladder as well as enabling the worker to work on the ladder while feeling secure by leading the safety handrail to protect the worker. According to the present invention, when leg parts (2) of a ladder (1) are unfolded to both sides, a folded footrest (4) and a safety handrail (5) are substantially fixed while being placed over a supporter (12) of the leg parts (2). When a worker steps on the footrest (4) of the ladder (1) and pulls a handrail grip (7) upward, a corrugated part (9) is spread to form a safety handrail shape. When a square hole (3a) formed on a fixture (3) and a square hole (8) formed in the center of a bracket (10) of the safety handrail (5) are matched and adjusted in height and a fixing pin (11) is inserted into the square holes (3a)(8) and fixed, the safety handrail (5) is substantially fixed to the ladder to enable a worker to safely perform work. In order to perform dismantlement, as a release button (13) of the fixing pin (11) is pressed, the fixing pin (11) is separated from the square holes (3a)(8) to enable the safety handrail (5) to be dismantled.

Description

안전난간을 가진 사다리{A ladder with safety rail}A ladder with safety rail

본 발명은 안전난간을 가진 사다리에 관한 것으로, 특히 사다리 상단에 안전난간을 설치함으로써 작업자가 사다리 위에 올라가 작업을 할 경우 심리적으로 안정감을 줌은 물론 안전난간으로 하여금 작업자를 보호해주도록 하여 사다리 위에서 안심하고 작업할 수 있도록 한 것이다.The present invention relates to a ladder having a safety handrail, and in particular, by installing a safety handrail at the top of the ladder, it provides psychological stability when the worker climbs the ladder and works, and the safety handrail protects the worker so that the worker is safe and secure on the ladder. that made it work.

일반적으로 높은 곳에 올라가서 작업을 해야 할 경우, 양다리 사다리를 이용하여 작업자가 사다리위에 올라가서 작업을 하고 있다.In general, when it is necessary to go up to a high place and work, a worker is working on the ladder using a two-legged ladder.

그러나 이와 같이 사다리를 이용하는 경우 일반적인 사다리는 두개의 다리를 벌려놓고 사용하으로써 작업자가 사다리위에 올라가서 작업하는 동안 높게 위치한 사다리위에서 심리적으로 불안함은 물론, 아무런 안전장치가 구비되어 있지 않아 부주의로 사다리에서 떨어질 염려가 있다.However, in the case of using a ladder in this way, a general ladder is used with two legs spread apart, so that the worker is psychologically uneasy on the ladder located high while working on the ladder, and there is no safety device. There is a risk of falling.

특허출원 제 10-2016-0034986호Patent Application No. 10-2016-0034986 특허출원 제 10-2016-0003792호Patent Application No. 10-2016-0003792

본 발명은 이와 같은 종래의 결점을 해결하기 위한 것으로, 본 발명의 목적은, 사다리의 상단에 절첩식 난간을 구비하여 작업시 작업자가 사다리의 발판에서 안전난간 손잡이를 잡아 상방으로 이동시켜 안전난간을 고정설치한 상태에서 작업자가 안전난간내에서 안심하고 작업을 할 수 있도록 한 안전난간을 가진 사다리를 제공하는데 있다.The present invention is to solve the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a foldable handrail at the top of the ladder so that the operator grabs the safety handrail handle from the step of the ladder and moves it upward to install the safety handrail. An object of the present invention is to provide a ladder with a safety handrail that allows workers to work safely within the safety handrail in a fixed installation state.

이와 같은 목적을 달성하기 위한 본 발명은, 다리부를 가진 사다리에 있어서, 상기 다리부의 일측 상단에 설치된 지지대와, 상기 다리부의 일측상단에 고정되며 사각공이 형성된 고정대와, 상기 다리부의 타측 상단에 회전가능하게 설치된 발판과, 상기 발판위에 고정되는 안전난간을 구비하여 상기 사다리를 펼칠 때 발판 및 안전난간이 동시에 회전하여 상기 지지대에 고정되도록 구성함을 특징으로 한다.The present invention for achieving the above object, in a ladder having a leg portion, a support installed at the upper end of one side of the leg portion, a fixture fixed to the upper end of one side of the leg portion and having a square ball formed therein, and rotatable on the other upper end of the leg portion It is characterized in that it is provided with a footrest and a safety handrail fixed on the footrest so that the footrest and the safety handrail rotate at the same time to be fixed to the support when the ladder is unfolded.

본 발명은 상기 안전난간이, 수평하게 대향 설치되는 한쌍의 브라켓과, 상기 브라켓사이에 절첩 가능하게 설치된 자바라와, 상기 브라켓 상단에 고정되어 안전난간을 펴고 접을 때 사용하기 위한 난간손잡이와, 상기 브라켓중 상부 브라켓 중심부에 형성된 사각공을 포함하여 구성함을 특징으로 한다.The present invention provides a pair of brackets in which the safety handrail is horizontally opposed to each other, a foldable bellows installed between the brackets, a handrail handle fixed to the top of the bracket for use when unfolding and folding the safety handrail, and the bracket; It is characterized in that it comprises a square hole formed in the center of the upper bracket.

본 발명은 상기 고정대의 사각공과 안전난간의 사각공을 일치시키고 고정핀으로 고정시키며, 안전난간 해제시에는 상기 고정핀 후면에 설치된 해제버튼을 눌러 고정핀을 해제시켜 안전난간을 해제시키도록 구성함을 특징으로 한다. The present invention is configured to match the square ball of the fixing table with the square ball of the safety handrail and fix it with a fixing pin, and to release the safety handrail by pressing the release button installed on the rear side of the fixing pin when the safety handrail is released. is characterized by

이상과 같은 본 발명은 사다리를 펼치면 자동적으로 발판과 안전난간이 수평하게 고정되며, 작업자가 사다리위의 발판에 올라가서 안전난간의 손잡이를 상방으로 잡아당겨 안전난간을 설치한 상태에서 작업을 안전하게 수행할 수 있으며, 간단히 고정핀의 해제버튼을 누르면 안전난간을 해제하여 용이하게 사다리를 접어 보관할 수 있는 효과가 있다.In the present invention as described above, when the ladder is unfolded, the footrest and the safety handrail are automatically fixed horizontally, and the operator climbs on the footrest on the ladder and pulls the handle of the safety handrail upward to perform the work safely while the safety handrail is installed. There is an effect that the ladder can be easily folded and stored by simply pressing the release button of the fixing pin to release the safety handrail.

도 1은 본 발명의 안전난간을 설치한 상태의 사다리 사시도
도 2는 본 발명의 안전난간을 가진 사다리의 분해 사시도
도 3은 본 발명의 안전난간이 축소된 상태의 단면도
도 4는 본 발명의 안전난간을 설치한 상태의 단면도
도 5 내지 도 7은 본 발명의 안전난간을 설치하는 상태를 나타낸 도면
도 8은 본 발명의 안전난간을 사다리에 고정 또는 해제하는 동작을 설명하기 위한 도면이다
1 is a perspective view of a ladder in a state in which the safety handrail of the present invention is installed;
Figure 2 is an exploded perspective view of a ladder with a safety handrail of the present invention
3 is a cross-sectional view of the safety handrail of the present invention in a reduced state
4 is a cross-sectional view of a state in which the safety handrail of the present invention is installed;
5 to 7 are views showing a state in which the safety handrail of the present invention is installed;
8 is a view for explaining the operation of fixing or releasing the safety handrail of the present invention to the ladder

이하, 본 발명의 실시예를 첨부된 도면을 참고로 하여 상세히 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 안전난간을 설치한 상태의 사다리 사시도이고, 도 2는 본 발명의 안전난간을 가진 사다리의 분해 사시도이며, 도 3은 본 발명 안전난간의 축소 상태 단면도이고, 도 4는 본 발명의 안전난간을 설치한 상태의 단면도로, 사다리(1)의 일측 다리부(2)상단에 사각공(3a)을 가진 고정대(3)가 설치되고, 다리부(1)의 타측 다리부 상단에는 발판(4)과 안전난간(5)이 일체형으로 회전가능하게 설치되며, 사다리(1)를 펼칠 때 상기 발판(4)이 지지대(12)에 지지되어 고정되도록 구성된 것이다.1 is a perspective view of a ladder in a state in which a safety handrail of the present invention is installed, FIG. 2 is an exploded perspective view of a ladder having a safety handrail of the present invention, FIG. 3 is a reduced state cross-sectional view of the present invention safety handrail, and FIG. A cross-sectional view of the safety handrail installed of the invention, the fixing base 3 having a square hole 3a is installed on the upper part of the leg part 2 on one side of the ladder 1, and the upper end of the other leg part of the leg part 1 The footrest (4) and the safety handrail (5) are integrally rotatably installed, and when the ladder (1) is unfolded, the footrest (4) is supported and fixed to the support (12).

그리고 상기 발판(4)위에 안전난간(5)이 설치되는데, 상기 안전난간(5)은, 한쌍의 브라켓(10)과, 상기 브라켓(10)사이에 절첩 가능하게 설치된 자바라(9)와,상기 브라켓(10)에 고정되어 안전난간(5)을 펴고 접을 때 사용하는 난간손잡이(7)와, 상기 브라켓(10)중 상부 브라켓의 중심부에 형성된 사각공(8)을 포함하여 구성된 것이다.And a safety handrail 5 is installed on the footrest 4, and the safety handrail 5 includes a pair of brackets 10, a bellows 9 installed so as to be foldable between the brackets 10, and the It is configured to include a handrail handle 7 fixed to the bracket 10 and used when unfolding and folding the safety handrail 5, and a square hole 8 formed in the center of the upper bracket among the brackets 10.

이와 같이 구성된 본 발명의 작용을 도 5 내지 도 8을 참고로 하여 상세히 설명하면 다음과 같다.The operation of the present invention configured as described above will be described in detail with reference to FIGS. 5 to 8 as follows.

즉, 도 5 내지 도 7은 본 발명의 안전난간을 설치하는 상태를 나타낸 도면으로, 먼저, 도 5는 본 발명의 안전난간을 가진 사다리가 모아진 상태에서 이를 펼쳐 사다리로 사용하기 위한 동작을 설명하기 위한 것이다.That is, Figure 5 to Figure 7 is a view showing a state of installing the safety handrail of the present invention, first, Figure 5 is a ladder with a safety handrail of the present invention in a state in which it is spread out to explain the operation for using it as a ladder it is for

본 발명의 사다리(1)가 도 5와 같이 모아진 상태에서 다리부(2)를 양측으로 벌리면 도 6과 같이 접혀있던 발판(4)이 수평으로 펼쳐지게 되는데 이 발판(4)에는 안전난간(5)이 일체형으로 고정되어 있어 함께 접혀있다가 발판(4)이 펼쳐질 때 동시에 펼쳐지게 되는 것으로, 이때 발판(4)의 끝단은 다리부(2)의 지지대(12)에 걸쳐지면서 견고하게 고정된다.When the ladder (1) of the present invention is spread to both sides in a state in which the ladder (1) is gathered as shown in FIG. 5, the footrest (4) that was folded as shown in FIG. 6 is spread horizontally. It is fixed integrally and is folded together and unfolded at the same time when the footrest 4 is unfolded. At this time, the end of the footrest 4 is firmly fixed while spanning over the support 12 of the leg portion 2 .

이 상태에서 작업자가 사다리(1)의 발판(4)을 딛고 올라가서 난간손잡이(7)를 잡아 화살표 방향과 같이 상방으로 당기면, 도 7과 같이 자바라(9)가 펼쳐지면서 안전난간형태를 이루게 되는 것으로, 이때 고정대(3)에 형성된 사각공(3a)의 높이와 안전난간(5)의 브라켓(10) 중심부에 형성된 사각공(8)의 높이를 일치시켜 맞추어야 한다.In this state, when the operator steps on the footrest (4) of the ladder (1) and grabs the handrail handle (7) and pulls it upward in the direction of the arrow, the bellows (9) unfolds as shown in FIG. 7 to form a safety handrail. , At this time, the height of the square hole (3a) formed in the fixture (3) and the height of the square hole (8) formed in the center of the bracket (10) of the safety handrail (5) should be matched.

따라서, 고정대(3)에 형성된 사각공(3a)의 높이와 안전난간(5)의 브라켓(10) 중심부에 형성된 사각공(8)의 높이가 맞추어진 상태에서 도 8과 같이 사각형태의 고정핀(11)을 사용하여 2개의 사각공(3a)(8)에 삽입시켜 체결한다.Accordingly, in a state where the height of the square hole 3a formed in the fixing table 3 and the height of the square hole 8 formed in the center of the bracket 10 of the safety handrail 5 are matched, as shown in FIG. (11) is inserted into the two square holes (3a) (8) and fastened.

여기서, 상기 사각공(3a)(8)과 고정핀(11)이 모두 사각형태로 이루어져 있어 고정핀(10)이 사각공(3a)(8)에 삽입되어 체결된 상태에서는 쉽게 이탈되지 않고 견고하게 체결상태를 유지하게 된다.Here, the square hole (3a) (8) and the fixing pin (11) are both formed in a rectangular shape, so that the fixing pin (10) is inserted into the square hole (3a) (8) and is not easily separated in a fastened state. to keep the fastening state.

또한, 사다리(1)의 사용이 완료되어 다시 사다리(1)를 접어서 보관하고자 할경우에는 안전난간(5)을 해체해야 하는데 이때에는 도 8과 같이 고정핀(11)에 설치된 해제버튼(13)을 간단히 누르면 고정핀(11)내부에 탄설된 스프링의 작용으로 고정핀(11)이 사각공(3a)(8)으로부터 이탈되어 쉽게 해제가 이루어진다.In addition, when the use of the ladder (1) is completed and the ladder (1) is folded and stored again, the safety handrail (5) must be dismantled. In this case, the release button (13) installed on the fixing pin (11) as shown in FIG. By simply pressing the fixing pin 11, the fixing pin 11 is separated from the square hole 3a and 8 by the action of the spring installed inside the fixing pin 11, and the release is made easily.

따라서, 고정핀(11)이 빠진 상태에서 작업자가 안전난간(5)의 난간손잡이(7)를 상방에서 하방으로 누르면 자바라(9)가 다시 압축 및 축소되면서 도 3과 같은 상태를 이루게 되므로 작업자가 사다리(1)에서 내려와 다리부(2)를 접으면 발판(4)과 안전난간(5)이 다시 접어지므로 도 5와 같이 사다리(1)를 접어 보관할 수 있게 되는 것이다. Therefore, when the operator presses the handrail handle 7 of the safety handrail 5 from above in a state in which the fixing pin 11 is removed, the bellows 9 is compressed and reduced again, thereby achieving the state shown in FIG. When you come down from the ladder (1) and fold the leg part (2), the footrest (4) and the safety handrail (5) are folded again, so that the ladder (1) can be folded and stored as shown in FIG.

1:사다리 2:다리부
3:고정대 3a,8:사각공
4:발판 5:안전난간
6:고정핀 7:난간손잡이
9:자바라 10:브라켓
11:고정핀 12:지지대
13:해제버튼
1: ladder 2: leg part
3: Fixture 3a, 8: Square ball
4: Footrest 5: Safety handrail
6: Fixing pin 7: Handrail handle
9: Jabara 10: Bracket
11: fixing pin 12: support
13: Release button

Claims (3)

다리부를 가진 사다리에 있어서,
상기 다리부의 일측 상단에 설치된 지지대와, 상기 다리부의 일측상단에 고정되며 사각공이 형성된 고정대와, 상기 다리부의 타측 상단에 회전가능하게 설치된 발판과, 상기 발판위에 고정되는 안전난간을 구비하여 상기 사다리를 펼칠 때 발판 및 안전난간이 동시에 회전하여 상기 지지대에 고정되도록 구성된 것을 특징으로 하는 안전난간을 가진 사다리.
In a ladder having a leg portion,
A support installed on the upper end of one side of the leg portion, a fixture fixed to the upper end of one side of the leg portion and having a square hole formed therein, a footrest rotatably installed at the upper end of the other side of the leg portion, and a safety rail fixed on the footrest, the ladder Ladder with a safety handrail, characterized in that it is configured to be fixed to the support by rotating the footrest and the safety handrail at the same time when unfolded.
제1항에 있어서, 상기 안전난간이,
수평하게 대향 설치되는 한쌍의 브라켓과, 상기 브라켓사이에 절첩 가능하게 설치된 자바라와, 상기 브라켓 상단에 고정되어 안전난간을 펴고 접을 때 사용하기 위한 난간손잡이와, 상기 브라켓중 상부 브라켓 중심부에 형성된 사각공을 포함하여 구성된 것을 특징으로 하는 안전난간을 가진 사다리.
According to claim 1, wherein the safety handrail,
A pair of horizontally opposed brackets, a foldable bellows installed between the brackets, a handrail handle fixed to the top of the bracket for use when unfolding and folding a safety railing, and a square hole formed in the center of the upper bracket among the brackets A ladder with a safety handrail, characterized in that it comprises a.
제1항에 있어서,
상기 고정대의 사각공과 안전난간의 사각공을 일치시키고 고정핀으로 고정시키며, 상기 고정핀후면에 설치된 해제버튼을 눌러 고정핀을 해제시키도록 구성된 것을 특징으로 하는 안전난간을 가진 사다리.
According to claim 1,
Ladder with a safety handrail, characterized in that it is configured to match the square ball of the fixing table with the square ball of the safety handrail and fix it with a fixing pin, and to release the fixing pin by pressing a release button installed on the rear side of the fixing pin.
KR1020200019355A 2020-02-18 2020-02-18 A ladder with safety rail KR20210104961A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160003792A (en) 2013-05-01 2016-01-11 젠자임 코포레이션 Compositions and methods for treating spinal muscular atrophy
KR20160034986A (en) 2013-07-24 2016-03-30 카스턴 매뉴팩츄어링 코오포레이숀 Gloves with a cut out portion and methods to manufacture gloves with a cut out portion

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160003792A (en) 2013-05-01 2016-01-11 젠자임 코포레이션 Compositions and methods for treating spinal muscular atrophy
KR20160034986A (en) 2013-07-24 2016-03-30 카스턴 매뉴팩츄어링 코오포레이숀 Gloves with a cut out portion and methods to manufacture gloves with a cut out portion

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