KR20020081641A - a desk and chair make high regulation equipment - Google Patents

a desk and chair make high regulation equipment Download PDF

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Publication number
KR20020081641A
KR20020081641A KR1020010021365A KR20010021365A KR20020081641A KR 20020081641 A KR20020081641 A KR 20020081641A KR 1020010021365 A KR1020010021365 A KR 1020010021365A KR 20010021365 A KR20010021365 A KR 20010021365A KR 20020081641 A KR20020081641 A KR 20020081641A
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KR
South Korea
Prior art keywords
height
desk
height adjustment
fastened
chair
Prior art date
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KR1020010021365A
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Korean (ko)
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KR100404497B1 (en
Inventor
박희태
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도림산업 주식회사
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Priority to KR10-2001-0021365A priority Critical patent/KR100404497B1/en
Publication of KR20020081641A publication Critical patent/KR20020081641A/en
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Publication of KR100404497B1 publication Critical patent/KR100404497B1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B91/00—Feet for furniture in general
    • A47B91/02—Adjustable feet
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B13/00—Details of tables or desks
    • A47B13/08—Table tops; Rims therefor
    • A47B13/081—Movable, extending, sliding table tops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B3/00—Folding or stowable tables
    • A47B3/06—Folding or stowable tables with separable parts
    • A47B3/063—Folding or stowable tables with separable parts combined with seats
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B41/00—School desks or tables
    • A47B41/02—Adjustable, inclinable, sliding or foldable desks tops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/14—Tables with tops of variable height with pins coacting with holes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/34—Chairs or stools with vertically-adjustable seats with pins coacting with holes or bolt-and-nut adjustment
    • 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
    • A47C7/002—Chair or stool bases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0051—Telescopic
    • A47B2200/0052—Telescopic with two telescopic parts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2220/00—General furniture construction, e.g. fittings
    • A47B2220/0036—Brackets

Landscapes

  • Tables And Desks Characterized By Structural Shape (AREA)
  • Special Chairs (AREA)

Abstract

PURPOSE: A device for adjusting a height of a chair or desk is provided to allow a user to freely adjust the height of the chair or desk according to the user's body size so as to keep an optimum sitting posture. CONSTITUTION: The height adjustment device(30) of a chair or desk, the chair or desk comprising an upper pole(10) inserted in a lower pole, is formed at the upper end of the lower pole to be fitted into height adjustment holes(11) formed at regular distances on the upper pole. The height adjustment device is coupled with an adjustment lever(50) by using a hinge(53), and the adjustment lever has a projection(51) to be fastened selectively into a groove(41) of a bracket(40). The upper end of the adjustment lever is coupled with the rear end of an operating body(60), which is elastically coupled by a spring(62) and formed with a coupling part(61) that the tip end is fastened to the height adjustment hole. During the operation of the adjustment lever, the coupling part of the operating body is moved forward and backward so as to be selectively fastened or separated with the height adjustment hole.

Description

책,걸상 높이조절장치{a desk and chair make high regulation equipment}Book and chair make high regulation equipment

본 발명은 책,걸상 높이조절장치에 관한 것으로서, 주로 학교나 학원등에서 사용하는 책상이나 걸상의 기둥을 상측기둥과 하측기둥으로 분리하고, 상측기둥 상단에 높이조절장치를 형성하여 책,걸상의 높이를 사용자에 맞게 임의대로 자유롭게 조절하도록 한 것이다.The present invention relates to a book and a stool height adjusting device, which mainly separates the column of a desk or a stool used in a school or an academy into an upper column and a lower column, and forms a height adjusting device on the upper side of the upper column and the height of the book and the stool. Is freely adjusted to suit the user.

일반적으로 학교나 학원 등에서 사용되는 책상은, 첨부 도면 도 1에 도시된 바와 같이 상판과, 상기 상판 저부에 설치되는 서랍과, 그리고 상기 상판 또는 서랍의 저면 양쪽을 지지하는 다리를 포함하여 이루어지며, 이들 책상은 다리들이 일체로 고정되어 있기 때문에 대부분 높이를 조절할 수 없게 이루어져 있다.Generally, a desk used in a school, a school, or the like, the upper plate, as shown in Figure 1 is made of a drawer is installed on the bottom of the upper plate, and a leg supporting both sides of the top or bottom of the drawer, Most of these desks cannot be adjusted in height because the legs are fixed together.

이와 같이 책상의 높이를 조절할 수 없게 됨에 따라 키가 큰 사람은 장기간 등을 구부린 상태로 필기를 하면서 수업을 받아야 하므로 척추가 휘어져 디스크 등의 심각한 질병을 가질 우려가 있을 뿐만 아니라 잘못된 자세로 책을 볼 수밖에 없기 때문에 시력이 극도로 나빠지게 된다.As the height of the desk cannot be adjusted, a tall person needs to be taught while writing with his back bent for a long time, so the spine may be bent and serious disease such as a disc may be caused. Because there is no choice but eyesight is extremely bad.

한편, 키가 작은 사람은 팔꿈치를 위로 무리하게 많이 올린 상태에서 필기를 하면서 수업을 받음으로써 상기한 문제점 뿐만 아니라 견경완증 등의 질병을 가질 우려가 있다.On the other hand, a short person may have a disease such as pneumoconiosis as well as the above problems by taking a lesson while taking a lot of elbows upwards.

이러한 문제점들을 해결하기 위하여 높이조절가능한 의자가 다양하게 제공되고 있다.In order to solve these problems, various height adjustable chairs are provided.

그러나, 이러한 높이조절 가능한 의자들은 앉은 키를 맞출 수 있어서 편리한 점은 있지만 자기와는 높이가 맞지 않는 책상의 높이에 자기의 앉은 키를 억지로 맞춤으로써 여러 가지 문제점을 야기한다.However, these height-adjustable chairs are convenient because they can fit the sitting height, but causes various problems by forcibly adjusting their sitting height to the height of the desk does not match the height.

즉, 앉은 키를 맞추게 되면 허리와 다리의 뻗은 각도가 맞지 않는 등 오히려 불편하고 인체에 무리를 주는 자세가 나올 수밖에 없어 이도 역시 올바른 자세로 앉아 공부하도록 하기에는 한계가 있다.In other words, if you sit down to fit the height of the waist and legs do not fit, but rather uncomfortable and uncomfortable postures come out of the body also has a limit to study sitting in the correct posture.

본 발명은 상기와 같은 제반 문제점을 감안하여 안출한 것으로, 책상이나 걸상의 기둥을 상측기둥과 하측기둥으로 분할하고, 상기 하측기둥 상단에 높이조절장치를 설치 구성하여, 책상이나 걸상의 높이를 마음대로 조절할 수 있도록 함으로써, 장시간 책상과 걸상을 사용하게 되는 학생들이 신체 조건에 알맞게 책,걸상의 높이를 임의대로 조절하여 사용할 수 있기 때문에 등 이나 허리등의 척추변형은 물론 눈의 피로감을 현저히 덜어 주어 건강한 정신과 육체의 발육에 도움을 주며, 신체의 발육상태가 천차만별인 학생들은 자신의 신체조건에 맞지도 않은 책상과 걸상을 사용하게 됨으로써 허리가 휘어지거나 책상에 놓여진 책과 눈과의 거리 초점이 맞지 않아 눈이 쉽게 피로해진다거나 하는 등의 정신적,육체적 스트레스가 쌓이지 않기 때문에 공부에 정신을 집중할 수 있도록 함에 그 목적이 있다.The present invention has been made in view of the above problems, and divided the column of a desk or a stool into an upper column and a lower column, by installing a height adjusting device installed on the upper side of the lower column, the height of the desk or stool at will By adjusting it, students who use desks and stools for a long time can adjust the height of books and stools according to their physical condition. Helping the development of the mind and body, and students with varying physical conditions, they use desks and stools that do not match their physical condition, causing the waist to bend or the distance between the book and the eyes placed on the desk. Since mental and physical stress such as eye fatigue and fatigue do not accumulate, To have as its purpose to concentrate the mind.

도 1은 종래 고안의 구성을 나타낸 예시도.1 is an exemplary view showing a configuration of a conventional design.

도 2는 본 발명의 구성을 나타낸 단면도.2 is a cross-sectional view showing the configuration of the present invention.

도 3∼도 4는 본 발명의 작동상태를 나타낸 단면도.3 to 4 are cross-sectional views showing the operating state of the present invention.

♣도면의 주요부분에 대한 부호의 설명♣♣ Explanation of symbols for main part of drawing ♣

10 : 상측기둥 11 : 높이조절공10: upper column 11: height adjustment hole

20 : 하측기둥 30 : 높이조절장치20: lower column 30: height adjustment device

40 : 브라켓트 41 : 걸림요홈40: bracket 41: hanging groove

50 : 조절레버 51 : 걸림돌기50: control lever 51: the locking projection

52 : 걸림스프링 53 : 힌지52: jam spring 53: hinge

60 : 작동몸체 61 : 결합부60: working body 61: coupling part

62 : 스프링62: spring

상기와 같은 목적을 달성하기 위해 본 발명을 첨부 도면 도 2 내지 도 4에 도시된 책상과 걸상의 높낮이를 조절하도록 높이조절장치를 구성함에 있어서,In order to achieve the above object in the configuration of the height adjustment device to adjust the height of the desk and the stool of the accompanying drawings shown in Figures 2 to 4,

책상 또는 걸상의 기둥을 분리하여 상측기둥(10)이 하측기둥(20) 속으로 삽입하며, 상기 상측기둥(10)에는 적당한 간격으로 높이조절공(11)을 형성하고, 상기 하측기둥(20) 상단에는 높이조절장치(30)를 형성하되, 상기 높이조절장치(30)는, 소정갯수의 걸림요홈(41)이 형성된 브라켓트(40) 내부 하측에 걸림요홈(41)에 선택적으로 체결되는 걸림돌기(51)가 구비된 걸림스프링(52)이 장착된 조절레버(50)를 힌지(53) 결합하고, 상기 조절레버(50)의 상단에 브라켓트(40)에 힌지(53) 결합하고 선단에 높이조절공(11)이 체결되는 결합부(61)가 형성되며 스프링(62)에 의해 탄성적으로 결합된 작동몸체(60)의 후단을 결합하여, 상기 조절레버(50)를 작동시 작동몸체(60)의 결합부(61)가 전,후진시켜서 상측기둥(10)에 형성된 높이조절공(11)에 선택적으로 결합 또는 이탈되면서 높이를 조절토록 구성하였다.The upper column 10 is inserted into the lower column 20 by separating a desk or a stool from the desk, and the upper column 10 forms a height adjusting hole 11 at an appropriate interval, and the lower column 20 A height adjusting device 30 is formed at an upper end thereof, and the height adjusting device 30 includes a locking protrusion selectively fastened to the locking recess 41 in the lower side of the bracket 40 in which a predetermined number of locking recesses 41 are formed. A hinge 53 is coupled to the adjustment lever 50 provided with a locking spring 52 provided with a 51, and a hinge 53 is coupled to the bracket 40 at the upper end of the adjustment lever 50 and the height is at the tip. Coupling portion 61 to which the adjustment hole 11 is fastened is formed and by coupling the rear end of the working body 60 elastically coupled by a spring 62, the operating body when operating the control lever 50 ( The coupling portion 61 of the 60 is moved forward or backward selectively coupled to or separated from the height adjustment hole 11 formed in the upper column 10 to increase the height It was configured to adjust.

상기와 같은 본 발명의 작동상태를 보다 상세히 설명하면 다음과 같다.Referring to the operating state of the present invention as described above in more detail as follows.

먼저 첨부 도면 도 2에 도시된 바와 같이 상판(100) 저면에 적당한 간격으로 높이조절공(11)이 형성된 상측기둥(10)을 하측기둥(20) 속으로 삽입한다.First, as shown in FIG. 2, the upper column 10 having the height adjustment holes 11 formed at appropriate intervals on the bottom surface of the upper plate 100 is inserted into the lower column 20.

이때, 상기 상측기둥(10)의 높이조절공(11)으로, 상기 하측기둥(20) 상단에 형성되어 있는 높이조절장치(30)의 브라켓트(40) 내부에 형성되어 있는 작동몸체(60)의 결합부(61)를 삽입하여 고정시킨다.At this time, the height adjustment hole 11 of the upper column 10, of the operating body 60 formed in the bracket 40 of the height adjusting device 30 is formed on the upper side of the lower column (20). Insert and fix the coupling portion (61).

상기와 같은 고정 상태에서 첨부도면 도 3에 도시된 바와 같이 사용자가 책상이나 의자의 높이를 조절하고자 할 때는 높이조절장치(30)의 브라켓트(40) 내부에 형성되어 있는 조절레버(50)을 우측방향으로 잡아 당기면, 걸림스프링(52)에 구비된 걸림돌기(51)가 브라켓트(40)에 형성되어 있는 걸림요홈(41)에서 해제되면서빠져나온다.When the user wants to adjust the height of the desk or chair as shown in FIG. 3 in the fixed state as described above, the adjustment lever 50 formed inside the bracket 40 of the height adjusting device 30 is right. Pulling in the direction, the locking projection 51 provided in the locking spring 52 is released while being released from the locking groove 41 formed in the bracket (40).

이때, 조절레버(50)가 힌지(53)에 의해 회동되면서 걸림돌기(51)가 형성된 걸림스프링(52)이 다음 단계의 걸림요홈(41a)으로 이동하여 걸림돌기(51)가 체결된다.At this time, the control lever 50 is rotated by the hinge 53, the locking spring 52, the locking projection 51 is formed is moved to the locking groove (41a) of the next step is fastened the locking projection 51.

이와 동시에 상기 조절레버(50) 상단에 체결되어 있는 스프링(62)에 의해 탄성적으로 결합된 작동몸체(60)의 후단을 전방으로 밀어준다.At the same time, the rear end of the operating body 60 is elastically coupled by the spring 62 is fastened to the top of the control lever 50 to the front.

그러면, 상기 작동몸체(60)가 힌지(53)를 중심으로 후방으로 회전되면서 높이조절공(11)에 체결되어 있던 결합부(61)가 후방으로 밀려나오게 된다.Then, as the operating body 60 is rotated to the rear about the hinge 53, the engaging portion 61 which is fastened to the height adjustment hole 11 is pushed out to the rear.

상기와 같은 상태에서 사용자가 상판에 결합되어 있는 상측기둥(10)을 잡아당기면, 상기 상측기둥(10)은 작동몸체(60)의 결합부(61) 하측에 형성된 곡선면을 살짝 밀면서 일정한 음을 내면서 올라간다.When the user pulls the upper column 10 coupled to the upper plate in the above state, the upper column 10 slightly pushes the curved surface formed on the lower side of the engaging portion 61 of the working body 60 to make a constant sound. Going up.

이때, 작동몸체(60)의 결합부(61)는 스프링(62)의 탄력에 의해 후방으로 밀려 났다가 다음 높이조절공(61)에서 원상태가 된다.At this time, the engaging portion 61 of the working body 60 is pushed backward by the elasticity of the spring 62, and then in the original height adjusting hole 61.

상기와 같이 상측기둥(10)이 상측으로 올라가면서 높이조절공(61)의 위치를 알려 주지만 반대로 하강은 높이조절공(61)에 결합부(61)의 상측이 일정부분 삽입 고정되어 있어 내려가지 못하게 한다.As described above, the upper column 10 ascends to the upper side tells the position of the height adjustment hole 61, but on the contrary, the lower side of the coupling portion 61 is fixed to the height adjustment hole 61 is inserted into a fixed portion Do not let it.

상기와 같은 상태에서 사용자가 상판이 형성된 상측기둥(10)을 하측으로 내리고자 할 때는, 상기 조절레버(50)를 후방으로 잡아당겨 마지막 단계의 걸림요홈(41b)에 체결하면, 상기 조절레버(50) 상단에 체결되어 있는 작동몸체(60)의 후단을 전방으로 밀어준다.When the user wants to lower the upper column 10 having the upper plate formed in the above state to the lower side, when the control lever 50 is pulled backward and fastened to the latching recess 41b of the last step, the control lever ( 50) Push the rear end of the working body 60 is fastened to the top forward.

그러면, 상기 작동몸체(60)가 힌지(53)를 중심으로 후방으로 회전되면서 높이조절공(11)에 체결되어 있던 결합부(61)가 완전히 빠지게 된다.Then, as the operating body 60 is rotated to the rear around the hinge 53, the engaging portion 61 that is fastened to the height adjustment hole 11 is completely removed.

이와 같은 상태에서 사용자가 원하는 위치까지 상측기둥(10)을 내리면 된다.In such a state, the user can lower the upper column 10 to a desired position.

상기와 같은 본 발명은 책상이나 걸상의 기둥을 상측기둥과 하측기둥으로 분할하고, 상기 하측기둥 상단에 높이조절장치를 설치 구성하여, 책상이나 걸상의 높이를 마음대로 조절할 수 있도록 함으로써, 장시간 책상과 걸상을 사용하게 되는 학생들이 신체 조건에 알맞게 책,걸상의 높이를 임의대로 조절하여 사용할 수 있기 때문에 등,이나 허리등의 척추변형은 물론 눈의 피로감을 현저히 덜어 주어 건강한 정신과 육체의 발육에 도움을 주며, 신체의 발육상태가 천차만별인 학생들은 자신의 신체조건에 맞지도 않은 책상과 걸상을 사용하게 됨으로써 허리가 휘어지거나 책상에 놓여진 책과 눈과의 거리 초점이 맞지 않아 눈이 쉽게 피로해진다거나 하는 등의 정신적,육체적 스트레스가 쌓이지 않기 때문에 공부에 정신을 집중할 수 있도록 하는 등 매우 신규한 발명이다.The present invention as described above divides the column of a desk or a stool into an upper column and a lower column, and installs a height adjustment device on the upper side of the lower column, so that the height of the desk or the stool can be adjusted at will, for a long time desk and stool Students can use the height of books and stools according to their physical condition.They help to develop healthy mind and body by remarkably reducing the strain on the back and waist, as well as fatigue of the eyes. For example, students with very different physical condition may use desks and stools that do not match their physical condition, causing their eyes to bend because they are bent at the waist or the distance between books and eyes placed on the desk is out of focus. Because mental and physical stress does not accumulate, it is possible to concentrate on studying. It is a novel invention.

Claims (1)

책상과 걸상의 높낮이를 조절하도록 높이조절장치를 구성함에 있어서,In configuring the height adjusting device to adjust the height of the desk and the stool, 책상 또는 걸상의 기둥을 분리하여 상측기둥(10)이 하측기둥(20) 속으로 삽입하며, 상기 상측기둥(10)에는 적당한 간격으로 높이조절공(11)을 형성하고, 상기 하측기둥(20) 상단에는 높이조절장치(30)를 형성하되,The upper column 10 is inserted into the lower column 20 by separating a desk or a stool from the desk, and the upper column 10 forms a height adjusting hole 11 at an appropriate interval, and the lower column 20 The height adjusting device 30 is formed on the top, 상기 높이조절장치(30)는, 소정갯수의 걸림요홈(41)이 형성된 브라켓트(40) 내부 하측에 걸림요홈(41)에 선택적으로 체결되는 걸림돌기(51)가 구비된 걸림스프링(52)이 장착된 조절레버(50)를 힌지(53) 결합하고,The height adjustment device 30, the locking spring 52 is provided with a locking projection 51 is selectively fastened to the locking groove 41 in the lower side of the bracket 40, the predetermined number of locking groove 41 is formed. Hinge 53 is coupled to the installed adjustment lever 50, 상기 조절레버(50)의 상단에 브라켓트(40)에 힌지(53) 결합하고 선단에 높이조절공(11)이 체결되는 결합부(61)가 형성되며 스프링(62)에 의해 탄성적으로 결합된 작동몸체(60)의 후단을 결합하여,The hinge portion 53 is coupled to the bracket 40 at the upper end of the control lever 50, and a coupling portion 61 is formed to which the height adjustment hole 11 is fastened to the front end thereof, and is elastically coupled by the spring 62. By combining the rear end of the working body 60, 상기 조절레버(50)를 작동시 작동몸체(60)의 결합부(61)가 전,후진시켜서 상측기둥(10)에 형성된 높이조절공(11)에 선택적으로 결합 또는 이탈되면서 높이를 조절토록 구성함을 특징으로 하는 책,걸상 높이조절장치.When operating the control lever 50, the coupling portion 61 of the operating body 60 is moved forward, backward to selectively engage or leave the height adjustment hole 11 formed in the upper column 10 to adjust the height Characterized in the book, the height adjustment device.
KR10-2001-0021365A 2001-04-20 2001-04-20 a desk and chair make high regulation equipment KR100404497B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100669223B1 (en) * 2004-07-20 2007-01-16 선진산업 주식회사 Height adjusting device of desk and chair
KR100873963B1 (en) * 2007-05-02 2008-12-12 (주) 군장조선 An Apparatus for Protecting Screw of Ships
KR101917034B1 (en) * 2017-07-10 2019-01-30 주식회사 플라팜 Leg apparatus for desk

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100666507B1 (en) 2006-05-19 2007-01-09 주식회사 한성교구 Appratus for adjusting height

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100669223B1 (en) * 2004-07-20 2007-01-16 선진산업 주식회사 Height adjusting device of desk and chair
KR100873963B1 (en) * 2007-05-02 2008-12-12 (주) 군장조선 An Apparatus for Protecting Screw of Ships
KR101917034B1 (en) * 2017-07-10 2019-01-30 주식회사 플라팜 Leg apparatus for desk

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