KR101265898B1 - Chair backrest with variable type lumbar support - Google Patents

Chair backrest with variable type lumbar support Download PDF

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Publication number
KR101265898B1
KR101265898B1 KR1020120142834A KR20120142834A KR101265898B1 KR 101265898 B1 KR101265898 B1 KR 101265898B1 KR 1020120142834 A KR1020120142834 A KR 1020120142834A KR 20120142834 A KR20120142834 A KR 20120142834A KR 101265898 B1 KR101265898 B1 KR 101265898B1
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KR
South Korea
Prior art keywords
lumbar support
backrest
chair
lumbar
support plate
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KR1020120142834A
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Korean (ko)
Inventor
윤진현
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주식회사 네오퍼스
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Priority to KR1020120142834A priority Critical patent/KR101265898B1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/402—Support for the head or the back for the back adjustable in height

Abstract

PURPOSE: A chair backrest with a variable-type lumbar support is provided to easily adjust the protrusion degree of a lumbar supporting plate for corresponding to the physical characteristics or condition of a user. CONSTITUTION: A chair backrest with a variable-type lumbar support comprises a backrest body(1) and a backrest frame(2) and is installed at the rear portion of the seat(3) of a chair. A lumbar supporting plate(11) which is cut to be connected to the backrest body is installed at a portion of the backrest body corresponding to the lumbar vertebra. A plurality of taper protrusions(12) is installed in the rear of the lumbar supporting plate, which has an inclined shape by placing the upper portion higher than the lower portion. An operation lever which is exposed to the outside of the backrest frame is installed in the portion of the backrest body corresponding to the lumbar vertebra, in order to ascend or descend according to an operation groove which is formed passing through the backrest frame at a fixed length.

Description

가변식 요추받침 장치를 갖는 의자 등받이{Chair backrest with variable type lumbar support}Chair backrest with variable lumbar support device {Chair backrest with variable type lumbar support}

본 발명은 가변식 요추받침 장치를 갖는 의자 등받이에 관한 것으로, 더욱 상세하게는 의자등받이를 이루는 등받이 본체의 요추 대응부위에 요추받침판을 설치함과 동시에, 요추받침판은, 등받이 프레임에 설치되어 상,하로 슬라이드 이동되는 작동구와 접촉되게 하는 것에 의해, 의자사용자가 편의에 따라 작동구와 연결되어 등받이 프레임 외 측으로 돌출된 작동손잡이를 상,하로 작동시킴으로써, 작동구가 승,하강하여 작동구의 푸셔(pusher)와 접촉된 요추받침판을 의자 사용자의 요추측으로 가변적인 범위 내에서 일정부분 밀어내, 결과적으로 요추받침판이 사용자의 요추부위에 접촉하도록 하는 것에 의해, 사용자의 신체적 특성이나 조건에 대응하여 그때그때 요추받침판의 돌출 정도(높이)를 간편히 조절하여 사용할 수 있도록 함으로써, 의자의 사용성 및 상품성을 제고할 수 있도록 한 것이다.The present invention relates to a chair back having a variable lumbar support device, and more particularly, the lumbar support plate is installed at the lumbar support portion of the back support main body constituting the chair back, and the lumbar support plate is installed on the back support frame. By making the chair user come into contact with the operation tool which slides downward, the chair user is connected to the operation tool for convenience, and operates the operation knob which protrudes out of the backrest frame up and down so that the operation tool is pushed up and down to pusher the operating tool. The lumbar support plate, which is in contact with the lumbar support plate, is pushed to a part of the lumbar side of the chair within a variable range, so that the lumbar support plate comes into contact with the lumbar region of the user, thereby responding to the user's physical characteristics or conditions. By easily adjusting the protrusion (height) of the chair, It will have to increase the availability and marketability.

일반적으로 가정이나 사무실에서 사용되고 있는 대부분의 의자의 경우, 의자 사용자의 요추 부분이 접촉되는 등받이 부분에 별도의 요추 받침대가 설치되어 있지 않을 뿐만 아니라, 요추 받침대가 설치되어 있다 하더라도, 의자 제작단계에서 등받이 하측의 요추 대응부위에 미리 일정 높이만큼 돌출되게 요추받침대를 설치한 것이어서, 의자사용자가 그때그때 요추받침대의 돌출높이를 임의로 조절할 수 없게 되므로, 의자의 사용성을 해치게 되는 등의 문제점이 있는 것이었다.In general, most chairs used in homes and offices are not provided with a separate lumbar support in the back portion where the lumbar part of the chair user contacts, and even if a lumbar support is installed, the chair is supported at the back of the chair production stage. Since the lumbar support was installed to protrude to a predetermined height on the lower lumbar counterpart in advance, the chair user could not arbitrarily adjust the protrusion height of the lumbar support at that time, and there was a problem such as impairing the usability of the chair.

따라서 본 발명의 목적은, 상기와 같이 의자의 등받이 내면 하측의 요추 대응부위에 요추받침판이 설치되어 있지 않거나, 또는 요추받침판이 설치되어 있더라도 그 돌출높이가 특정높이로 고정된 채 설치되어, 그 사용 효율이 떨어지게 되는 종래의 의자등받이가 지닌 제반문제점을 해결하기 위하여, 의자 등받이를 이루는 등받이 본체의 요추 대응 부위에, 후면에 복수의 테이퍼 돌조를 갖는 요추지지판을 상단을 기준으로 회동가능 하게 설치하고, 상기 등받이 본체의 후면에 조립되는 등받이 프레임의 상기 요추지지판 대응부위에는, 상기 테이퍼 돌조와 접촉된 채 승,하강되는 푸셔를 갖는 작동구를 설치하여, 의자 사용자가 필요에 따라, 작동구와 연결된 작동레버를 승,하강시키는 간단한 동작만으로 작동구가 승,하강하면서 푸셔에 의해 테이퍼 돌조를 밀어내게 함으로써, 요추지지판이 의자사용자의 요추 측으로 일정 부분 밀려나면서 요추와 접촉하게 하여, 요추를 일정한 세기로 지속적으로 받치도록 하는 것에 의해, 의자사용자의 사용편의성을 높여 결과적으로 의자의 전체적인 상품성을 제고할 수 있도록 한 가변식 요추받침 장치를 갖는 의자 등받이를 제공함에 있다.Therefore, the object of the present invention, even if the lumbar support plate is not installed on the lower lumbar counterpart of the lower back surface of the chair as described above, or even if the lumbar support plate is installed, the protruding height is installed fixed to a specific height, the use thereof In order to solve the problems of the conventional chair back, which is inferior in efficiency, the lumbar support plate having a plurality of tapered protrusions on the back is rotatably installed on the upper back on the lumbar corresponding part of the backrest main body constituting the chair back, On the counterpart of the lumbar support plate of the backrest frame assembled on the back of the backrest main body, an operating tool having a pusher that is pushed up and down while being in contact with the tapered protrusion is installed, so that a chair user can operate an operation lever connected to the operating tool as necessary. With the simple movement of lifting and lowering, the operation tool moves up and down while the taper stone By pushing out the jaws, the lumbar support plate is pushed to the lumbar side of the chair user by a certain part to make contact with the lumbar spine, thereby continuously supporting the lumbar spine at a constant strength, thereby increasing the user's ease of use and consequently the overall merchandise of the chair. It is to provide a chair back having a variable lumbar support device to improve the.

상기한 목적을 달성하기 위하여, 본 발명에 의한 가변식 요추받침 장치를 갖는 의자 등받이는, 등받이 본체(1)와 등받이프레임(2)으로 되어 의자(A)의 좌판(3) 후단에 설치되는 등받이(10)에 있어서, 상기 등받이 본체(1)의 요추 대응부위에는, 상측이 연결되게 절개된 요추지지판(11)을 설치하되, 요추지지판(11)의 배면에는, 상고하저(上高下低) 형태로 경사지게 돌출된 테이퍼 돌조(12)(12)를 복수개 설치하고, 상기 등받이프레임(2)의 요추지지판(11)의 대응부위에는, 등받이프레임(2) 외부로 노출되어 작동홈(27)을 따라 승,하강 되도록 설치된 작동레버(26)와 연결된 채, 중앙레일(25)과 양 안내홈(23)(23) 내에서 가이드편(24)(24)에 의해 안내되어 승,하강 되도록 작동구(21)를 설치하고, 상기 작동구(21)의 테이퍼 돌조(12)(12) 대응부위에는 하고상저(下高上低) 형태로 경사진 푸셔(22)(22)를 설치하여, 작동구(21)의 승,하강 동작에 따라 요추지지판(11)이 등받이 본체(1) 외 측으로 돌출되도록 한 것을 특징으로 한다.In order to achieve the above object, the chair back having a variable lumbar support device according to the present invention is the backrest body 1 and the backrest frame 2, which is installed at the rear end of the seat plate 3 of the chair A. In (10), the lumbar support plate 11, which is cut open so that the upper side is connected, is installed on the lumbar support part of the back support main body 1, and the upper and lower sides of the lumbar support plate 11 are provided. A plurality of tapered protrusions 12 and 12 protruding obliquely in a shape are provided, and the corresponding grooves of the lumbar support plate 11 of the back support frame 2 are exposed to the outside of the back support frame 2 to expose the operation groove 27. It is connected to the operating lever 26 installed so as to move up and down, and guided by the guide pieces 24 and 24 in the central rail 25 and both guide grooves 23 and 23, so as to move up and down. 21, the tapered protrusions 12 and 12 of the operating port 21 are provided in a shape of a high and low bottom. Photo pushers 22 and 22 are installed, so that the lumbar support plate 11 protrudes to the outside of the backrest body 1 in accordance with the lifting and lowering operation of the operation tool 21.

본 발명의 가변식 요추받침 장치를 갖는 의자 등받이에 의하면, 의자 등받이를 이루는 등받이 본체의 요추 대응부위에 요추지지판을 유동 가능한 상태로 설치하고, 이 등받이 본체의 배면에 부착설치되는 등받이 프레임에는 상,하로 슬라이드 작동하는 작동구를 설치하여, 작동구의 상승 또는 하강 동작에 따라 작동구의 푸셔가 등받이 본체의 요추지지판을 의자 착석자의 요추측으로 원하는 양(거리)만큼 밀어내 요추부위를 지지토록 함으로써, 간단한 구성만으로 필요 시 의자 사용자의 요추를 안정적인 상태로 받쳐 지지할 수 있게 되는 것에 의해, 의자의 사용성을 높여, 결과적으로 의자의 상품성을 제고할 수 있게 되는 등의 유용한 효과를 제공한다.According to the chair backrest having a variable lumbar support device of the present invention, the lumbar support plate is installed on the lumbar support portion of the backrest body constituting the chair back in a movable state, and the backrest frame attached to the back of the backrest body has a top, It is easy to support the lumbar region by installing the operation mechanism which slides downward, and pusher of the operation mechanism pushes the lumbar support plate of the back body to the lumbar side of the chair seat by the desired amount (distance) according to the ascending or descending movement of the operation mechanism. By only being able to support and support the lumbar spine of the chair user in a stable state only by the configuration, the usability of the chair is increased, and as a result, the usefulness of the chair can be improved.

도 1은 본 발명에 의한 의자 등받이의 분해 사시도.
도 2는 본 발명에 의한 의자 등받이의 부분 정면도.
도 3은 본 발명에 의한 의자 등받이의 부분 배면도.
도 4는 본 발명에 의한 의자 등받이의 조립 측 단면도.
도 5a 내지 5c는 본 발명에 의한 의자 등받이에 적용된 요추 받침장치의 작동 상태도.
도 6은 본 발명에 의한 등받이가 적용된 의자의 사시도.1 is an exploded perspective view of a chair back according to the present invention.
2 is a partial front view of a chair back according to the present invention.
3 is a partial rear view of the chair back according to the present invention.
Figure 4 is an assembled side cross-sectional view of the chair back according to the present invention.
5a to 5c is an operating state of the lumbar support device applied to the back of the chair according to the present invention.
Figure 6 is a perspective view of a chair to which the backrest according to the present invention is applied.

본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명을 용이하게 실시할 수 있을 정도로 본 발명의 바람직한 실시 예를 첨부된 도면을 참조하여 상세하게 설명하면 다음과 같다.DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

본 발명에 의한 가변식 요추받침 장치를 갖는 의자 등받이(10)는, 그 외면에 마감을 위한 직물이나 가죽 등의 마감재(도시생략)가 덧씌워져 마감처리되는 것으로, 그 구성은, 나사 또는 후크등의 다양한 고정결합수단에 의해, 서로 중첩되는 형태로 결합되는 등받이 본체(1)와 등받이 프레임(2)으로 이루어진다.The chair back 10 having a variable lumbar support device according to the present invention is covered with a finishing material (not shown) such as a fabric or leather for finishing on the outer surface thereof, and the constitution is a screw or hook. By a variety of fixed coupling means, the backrest body (1) and the backrest frame (2) are coupled in a form overlapping each other.

상기한 등받이 본체(1)는, 후면에 후술하는 등받이 프레임(2)이 서로 중첩되는 형태로 부착설치되는 것으로, 대략 중앙 하부, 즉 좌판(3)에 착석하는 착석자의 요추에 해당하는 부위에는, 그 상측 부위만 등받이 프레임(2)에 연결되고 나머지 부분은 절개 분리되어, 상측 부분을 기준으로 전,후로 유동 가능한 상태로 일정크기의 요추지지판(11)을 형성하고 있다.The backrest main body 1 is attached to the backrest frame 2, which will be described later, in a form overlapping each other, and at a portion corresponding to the lumbar spine of a seated person seated on the central lower portion, that is, the seat plate 3, Only the upper part is connected to the backrest frame 2 and the remaining part is incised and separated to form a lumbar support plate 11 having a predetermined size in a state capable of flowing back and forth with respect to the upper part.

이때 상기 요추지지판(11)의 배면에는 상고하저 형태로 경사진 경사면(12a)(12a)을 형성한 테이퍼돌조(12)(12)를 서로 일정거리를 두고 복수 개 돌출형성하고 있다.At this time, the back surface of the lumbar support plate 11 has a plurality of protruding tapered protrusions 12, 12 having the inclined surfaces 12a, 12a inclined in the shape of upper and lower portions at a predetermined distance from each other.

상기한 등받이 프레임(2)은, 상기 등받이 본체(1)의 배면에 중첩되게 설치되어 하나의 등받이(10)로서 기능 하도록 한 것으로, 그 내면, 즉 등받이 본체(1) 대향면에는, 상기 등받이 본체(1)의 요추지지판(11)에 대응하여 작동구(21)를 승,하강 가능한 상태로 설치하고 있다.The back frame 2 is provided to overlap the back of the back body 1 so as to function as one back 10. On its inner surface, that is, on the back surface of the back body 1, the back body Corresponding to the lumbar support plate 11 of (1), the operating tool 21 is provided in a state capable of raising and lowering.

상기한 작동구(21)는, 상기 등받이 본체(1)의 요추지지판(11)에 형성된 테퍼돌조(12)(12)에 접촉하도록, 그 대응위치에 푸셔(22)(22)를 형성한 상태에서 등받이 본체(2) 내측에 형성된 양 안내홈(23)(23)에 끼워진 채로 승,하강 동작가능 하도록 중앙레일(25)과 양 가이드편(24)(24)에 결합되어 설치된다.The operation tool 21 is a state in which the pusher 22, 22 is formed at the corresponding position so as to contact the taper protrusion 12, 12 formed on the lumbar support plate 11 of the backrest main body 1. In the backrest main body (2) formed in the guide rails (23, 23) formed inside the back and coupled to the central rail (25) and both guide pieces (24) (24) to be able to move up and down.

이때 상기 작동구(21)는 등받이 프레임(2) 외 측으로 노출된 작동레버(26)와 연결된 상태에서, 등받이 프레임(2)에 일정길이만큼 관통되게 형성된 작동홈(27)을 따라 작동레버(26)가 승,하강함에 따라 작동레버(26)와 연결된 작동구(21)도 함께 승,하강하도록 하고 있다.At this time, the operating port 21 is connected to the operating lever 26 exposed to the outside of the back frame 2, the operating lever 26 along the operating groove 27 formed to pass through the back frame 2 by a predetermined length. ), As the ascend, descend the actuating lever (26) connected to the operating port (21) is also raised and lowered together.

상기 작동구(21)의 푸셔(22)(22)에는 각각 상저하고 형태로 경사지는 경사면(22a)(22a)을 형성하여, 이들 경사면(22a)(22a)이 상술한 요추지지판(11)에 상고하저 형태로 경사지게 형성된 테이퍼 돌조(12)(12)의 경사면(12a)(12a)과 접촉한 상태에서, 작동구(21)가 승,하강 작동함에 따라, 테이퍼 돌조(12)(12)가 밀려나면서, 결과적으로 요추지지판(11)이 밀려나게 되어, 좌판(3)에 착석한 착석자의 요추부위에 밀착, 접촉되는 상태로 지지할 수 있게 된다.Inclined surfaces 22a and 22a are formed on the pushers 22 and 22 of the operating tool 21, respectively, and the inclined surfaces 22a and 22a are formed on the lumbar support plate 11 described above. In the state of contact with the inclined surfaces 12a and 12a of the tapered protrusions 12 and 12 formed to be inclined in the shape of the upper and lower sides, as the operation tool 21 moves up and down, the tapered protrusions 12 and 12 operate. As a result, the lumbar support plate 11 is pushed out as a result, so that the lumbar support plate 11 can be supported in a state of being in close contact with and in contact with the lumbar region of the seated occupant of the seat plate 3.

상기와 같은 구성으로 되는 본 발명에 의한 가변식 요추받침 장치를 갖는 의자 등받이(10)의 실시 작동 상태에 대하여 설명한다.A working operation state of the chair back 10 having the variable lumbar support device according to the present invention having the above configuration will be described.

먼저 의자(A)의 좌판(3)에 사용자가 앉은 상태에서 등받이(10)에 요추부위를 접촉시키되, 필요한 경우, 요추지지판(11)이 일정부분 착석자의 요추부위로 돌출되게 할 때에는, 좌판(3)에 앉은 상태에서, 한 손으로 등받이(10)를 이루는 등받이프레임(2) 배면 측에 외부로 노출되게 설치된 작동레버(26)를 위로 당겨 올리게 되면, 이 작동레버(26)와 연결된 등받이 프레임(2) 내측의 작동구(21)가 안내홈(23)(23) 내에서 양 가이드편(24)(24)에 의해 안내됨과 동시에, 중앙의 중앙레일(25)을 타고 상승하게 된다.First, when the user is sitting on the seat plate 3 of the chair A, the lumbar region is brought into contact with the backrest 10, if necessary, when the lumbar support plate 11 protrudes to the lumbar region of the seated part, the seat plate 3 In the state of sitting on the back, the back of the backrest frame (2) constituting the backrest 10 with one hand to pull up the operating lever 26 installed to be exposed to the outside, the backrest frame connected with the operation lever 26 ( 2) The inner operating port 21 is guided by both guide pieces 24 and 24 in the guide grooves 23 and 23, and ascends through the central rail 25 in the center.

이렇게 작동구(21)가 상승하게 되면, 작동구 하측의 푸셔(22)(22) 역시 상승하면서, 그 경사면(22a)(22a)으로 하여금, 등받이 본체(1)의 요추지지판(11)에 돌출되게 형성된 테이퍼돌조(12)(12)를 밀어내게 되어, 결과적으로 요추지지판(11)을 원하는 양만큼 등받이 본체(1) 외면으로부터 일정부분 돌출시켜 요추를 지지할 수 있게된다.When the operating tool 21 is raised in this manner, the pushers 22 and 22 under the operating tool are also raised, causing the inclined surfaces 22a and 22a to protrude to the lumbar support plate 11 of the backrest body 1. The tapered protrusions 12 and 12 are formed to be pushed out, and as a result, the lumbar support plate 11 is protruded from the outer surface of the backrest body 1 by a desired amount to support the lumbar spine.

이 상태에서 돌출되었던 요추지지판(11)의 돌출높이(양)를 적게 하거나, 최초의 비 돌출 상태로 하려하는 경우에는, 요추지지판(11)에 요추를 댄 상태에서 작동레버(26)를 하강시키게 되면 작동구(21)의 양 푸셔(22)(22)가 접촉된 상태인 요추지지판(11)의 테이퍼돌조(12)(12)가 등받이 본체(1) 내측으로 밀려들어 가면서 요추지지판(11) 역시 밀려들어 가게 됨에 따라, 그 돌출 높이를 간편히 조절할 수 있게된다.In the case where the height of the lumbar support plate 11 protruding in this state is reduced or the initial non-protruding state is to be reduced, the operating lever 26 is lowered while the lumbar support plate 11 is lumbar. When the two pushers 22 and 22 of the operating port 21 are in contact with each other, the tapered protrusion 12 and 12 of the lumbar support plate 11 are pushed into the back support body 1 to the lumbar support plate 11. As it is pushed back, the height of the protrusion can be easily adjusted.

상기 구성에 있어서, 요추지지판(11)의 돌출높이(양)를 조절하기 위한 핵심구성요소인 테이퍼돌조(12)(12)와 퓨셔(22)(22)의 설치 개수를 각각 2개로 하여 설명하였으나, 그 수를 특정하는 것은 아니며, 필요에 따라 증감할 수 있음은 물론이다.In the above configuration, the number of installation of the tapered protrusion 12, 12 and the pusher 22, 22, which is a key component for adjusting the protrusion height (quantity) of the lumbar support plate 11 has been described as two, respectively. Of course, the number is not specified and can be increased or decreased as needed.

이상에서와 같이 본 발명은 비록 상기의 구체적인 예에 대하여 설명하였지만 반드시 여기에만 한정되는 것은 아니며, 본 발명의 범주와 사상을 벗어나지 않는 범위내에서 다양한 변형 및 수정이 가능함은 당 업자에 있어서 명백한 것이며, 이러한 변형 및 수정이 첨부된 특허청구범위에 속함은 당연한 것이다.While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Such variations and modifications are intended to fall within the scope of the appended claims.

1 : 등받이 본체 2 : 등받이 프레임 3 : 좌판
11 : 요추지지판 12 : 테이퍼돌조 21a, 22a : 경사면
21 : 작동구 22 : 푸셔 23 : 안내홈
24 : 가이드 편 25 : 중앙레일 26 : 작동레버
27 : 작동홈1: body back 2: back frame 3: seat
11: lumbar support plate 12: tapered protrusion 21a, 22a: inclined surface
21: operating port 22: pusher 23: guide groove
24: guide part 25: center rail 26: operating lever
27: working groove

Claims (1)

등받이 본체(1)와 등받이프레임(2)으로 되어 의자(A)의 좌판(3) 후단에 설치되는 등받이(10)에 있어서,
상기 등받이 본체(1)의 요추 대응부위에는, 상측이 등받이 본체(1)와 연결되게 절개된 요추지지판(11)을 설치하되, 이 요추지지판(11)의 배면에는, 상고하저(上高下低) 형태로 경사지게 돌출된 테이퍼 돌조(12)(12)를 복수개 설치하고; 상기 등받이프레임(2)의 요추지지판(11) 대응부위에는, 등받이프레임(2)에 일정 길이 관통 형성된 작동홈(27)을 따라 승,하강 되도록 등받이 프레임(2) 외부로 노출되게 작동레버(26)를 설치하되, 이 작동레버(26)는, 등받이 프레임(2)의 등받이 본체(1) 대향면에 각각 돌출 형성된 중앙레일(25)과 양 안내홈(23)(23) 내에서 가이드편(24)(24)에 의해 안내되어 승,하강 되는 작동구(21)와 연결하고; 상기 작동구(21)에는 상기 요추지지판(11)의 테이퍼 돌조(12)(12)에 대응하여 하고상저(下高上低) 형태로 경사진 푸셔(22)(22)를 설치하는 것에 의해, 작동구(21)의 승,하강 동작에 따라 요추지지판(11)이 등받이 본체(1) 외 측으로 돌출되도록 한 것을 특징으로 하는 가변식 요추받침 장치를 갖는 의자 등받이.In the backrest 10 which becomes the backrest main body 1 and the backrest frame 2, and is installed in the rear end of the seat plate 3 of the chair A,
A lumbar support plate 11, the upper side of which is cut in such a manner as to be connected to the back support body 1, is provided on the corresponding lumbar support part of the back support body 1, and the upper and lower bottoms of the lumbar support plate 11 are provided. A plurality of tapered protrusions 12 and 12 protruding obliquely in the form of; In the corresponding portion of the lumbar support plate 11 of the backrest frame 2, the operation lever 26 is exposed to the outside of the backrest frame 2 so as to move up and down along the operation groove 27 formed through a predetermined length through the backrest frame 2. The operating lever 26 is installed in the center rail 25 and the two guide grooves 23 and 23, respectively, protruding from the back surface main body 1 of the back frame 2, respectively. It is connected by the operating port 21, which is guided by the 24) (24), up and down; By installing the pushers 22 and 22 inclined in the shape of a high bottom in correspondence with the tapered protrusions 12 and 12 of the lumbar support plate 11, Chair back having a variable lumbar support device, characterized in that the lumbar support plate 11 is projected to the outside of the backrest body (1) in accordance with the lifting and lowering operation of the operating port (21).
KR1020120142834A 2012-12-10 2012-12-10 Chair backrest with variable type lumbar support KR101265898B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019037665A (en) * 2017-08-28 2019-03-14 コクヨ株式会社 Chair
JP2019084336A (en) * 2017-11-06 2019-06-06 株式会社イトーキ Chair lumbar support device
KR102078658B1 (en) 2019-10-16 2020-02-18 동성사무기기(주) Chair back with adjustable lumbar support

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006263096A (en) 2005-03-23 2006-10-05 Itoki Corp Protector in chair with lumbar support mechanism
KR100684204B1 (en) 2006-04-20 2007-02-22 주식회사 리바트 Chair

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006263096A (en) 2005-03-23 2006-10-05 Itoki Corp Protector in chair with lumbar support mechanism
KR100684204B1 (en) 2006-04-20 2007-02-22 주식회사 리바트 Chair

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019037665A (en) * 2017-08-28 2019-03-14 コクヨ株式会社 Chair
JP2019084336A (en) * 2017-11-06 2019-06-06 株式会社イトーキ Chair lumbar support device
KR102078658B1 (en) 2019-10-16 2020-02-18 동성사무기기(주) Chair back with adjustable lumbar support

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