JP2010022487A - Chair - Google Patents

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JP2010022487A
JP2010022487A JP2008185329A JP2008185329A JP2010022487A JP 2010022487 A JP2010022487 A JP 2010022487A JP 2008185329 A JP2008185329 A JP 2008185329A JP 2008185329 A JP2008185329 A JP 2008185329A JP 2010022487 A JP2010022487 A JP 2010022487A
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seat plate
dome
chair
lower seat
upper seat
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Ariaki Okiyama
有章 沖山
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair contributing to a reduction in a user's burden and an improvement of the seating comfort by effectively inclining the seat surface of the chair in the front/rear/right/left despite a simple structure. <P>SOLUTION: This chair has a rocking mechanism for inclining the seat surface in the front/rear/right/left, wherein the rocking mechanism has an upper seat plate and a lower seat plate vertically layered into two stages, a plurality of resilient bodies connected between both the seat plates, and curved surface parts relatively rocking both thereof, at a substantially central part in the lower surface of the upper seat plate and a substantially central part in the upper surface of the lower seat plate, where the upper seat plate and the lower seat plate come into contact. The curved surface parts at the lower surface of the upper seat plate and the upper surface of the lower seat plate may be constituted of a substantially dome-like projection part and a substantially dome-like recessed part. A protrusion may be provided at the top of the substantially dome-like projection part and a hole fitted to the projection may be provided at the top of the substantially dome-like recessed part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、座面を前後左右に傾斜させる揺動機構を備えた椅子に関する。   The present invention relates to a chair provided with a swinging mechanism that tilts a seat surface in the front-rear and left-right directions.

従来の椅子では、長時間座ったままの姿勢を継続すると、背中や腰への負担が生じ背筋痛や腰痛などの症状が引き起こされることがある。また下半身では、臀部や大腿部が上半身の体重によって圧迫されることで、下半身の血行不良やエコノミー症候群が引き起こされることがある。
長時間にわたって同じ着席姿勢を継続することから生じるこれらの症状に対応するために、従来用いられてきた技術には、背もたれの角度を着席者に対して前後に変えることができるリクライニング機能がある。
しかしながら、このリクライニング機能は背中や腰部への負担を軽減する効果を発揮することはできるが、臀部以下の下半身の血行不良やエコノミー症候群の原因を解消するための手段としては十分な効果を発揮することができなかった。
In a conventional chair, if the posture is kept sitting for a long time, a burden on the back and lower back may occur, and symptoms such as back pain and back pain may be caused. In the lower body, the hip and thighs are compressed by the weight of the upper body, which may cause poor circulation and economy syndrome in the lower body.
In order to cope with these symptoms caused by continuing the same seating posture for a long time, the technology used conventionally has a reclining function that can change the angle of the backrest back and forth with respect to the seated person.
However, this reclining function can reduce the burden on the back and lower back, but it is sufficient as a means to eliminate poor blood circulation in the lower body below the buttocks and the cause of economy syndrome. I couldn't.

このため、長時間にわたって椅子に座ったままの姿勢を継続する必要がある場合に、臀部や大腿部への上半身の体重による圧迫を解消するためには、一時的に椅子から立ち上がって歩行したり、あるいは椅子に座ったままで足を左右に組んだりする必要があった。足を組む方法では、右足を左足の上に組めば右側の臀部や大腿部にかかる上半身の体重による圧迫が軽減され、その結果下半身右側の血行不良が改善される。反対に左足を右足の上に組めば下半身左側の血行不良が改善される。   For this reason, when it is necessary to continue sitting in a chair for a long time, in order to relieve pressure due to the weight of the upper body on the buttocks and thighs, temporarily stand up from the chair and walk. Or sitting on a chair and crossing legs from side to side. In the method of assembling the legs, if the right leg is assembled on the left leg, the pressure due to the weight of the upper body on the right hip and thigh is reduced, and as a result, the poor circulation on the right side of the lower body is improved. On the other hand, poor blood circulation on the left side of the lower body is improved if the left foot is assembled on the right foot.

しかしながら、例えば自動車を運転中のドライバーや飛行機を操縦中のパイロットのように、運転席や操縦席に座ったままの状態を維持する必要があり、かつ運転や操縦中に足を左右に組むことが座席の構造的、機能的見地から不可能な場合がある。そのような場合には、従来の背もたれの角度を前後に変えるだけのリクライニング機能では、長時間座ったままの姿勢を継続にすることによって引き起こされる下半身の血行不良やエコノミー症候群には対応することはできなかった。   However, it is necessary to remain seated in the driver's seat or cockpit, such as a driver driving a car or a pilot driving an airplane, and his / her legs should be crossed while driving or maneuvering. May not be possible from the structural and functional standpoint of the seat. In such a case, the reclining function that simply changes the angle of the backrest back and forth can not cope with poor blood circulation and economy syndrome in the lower body caused by continuing to sit for a long time. could not.

椅子を傾斜させる従来の技術には、特許文献1〜5がある。   There exist patent documents 1-5 in the prior art which inclines a chair.

特開2003−102801JP2003-102801A 特開2002−336095JP 2002-336095 A 特開2002−87259JP 2002-87259 A 特開2007−89993JP2007-89993A 特開2005−218830JP2005-218830

しかし、従来技術には、椅子の座面を前後左右に傾斜する機能を有する椅子はなかった。   However, in the prior art, there is no chair having a function of tilting the seat surface of the chair back and forth and right and left.

そこで、本発明は、簡易な構成でありながらも有効に、椅子の座面を前後左右に傾斜させられ、使用者の負担軽減や座り心地向上に寄与する椅子を提供することを課題とする。   Accordingly, an object of the present invention is to provide a chair that can effectively tilt the seat surface in the front-rear and left-right directions with a simple configuration, and that contributes to reducing the burden on the user and improving the sitting comfort.

上記課題を解決するために、本発明の椅子は次の構成を備える。
すなわち、座面を前後左右に傾斜させる揺動機構を備えた椅子であって、その揺動機構が、上下2段に積層される上座板及び下座板と、その両座板の間に連結される複数の弾性体とを有し、上座板と下座板とが接する部位である上座板の下面における略中央部と下座板の上面における略中央部とに、両者を相対的に揺動可能にする曲面部を設けたことを特徴とする。
In order to solve the above problems, the chair of the present invention has the following configuration.
In other words, the chair is provided with a swinging mechanism that tilts the seat surface back and forth and right and left, and the swinging mechanism is connected between the upper and lower seat plates stacked in two upper and lower stages, and both seat plates. It has a plurality of elastic bodies and can swing relative to the approximate center of the lower surface of the upper seat plate and the approximate center of the upper surface of the lower seat plate where the upper seat plate and lower seat plate are in contact. A curved surface portion is provided.

ここで、上座板の下面と下座板の上面の曲面部を、略ドーム状の凸部と略ドーム状の凹部とから構成してもよい。   Here, you may comprise the curved surface part of the lower surface of an upper seat board, and the upper surface of a lower seat board from a substantially dome-shaped convex part and a substantially dome-shaped recessed part.

また、略ドーム状の凸部の頂部に突起を設けると共に、その突起が嵌合する穴を略ドーム状の凹部の頂部に設けてもよい。   Further, a protrusion may be provided on the top of the substantially dome-shaped convex portion, and a hole in which the protrusion is fitted may be provided on the top of the substantially dome-shaped concave portion.

本発明は、上記構成を備えることにより次の効果を奏する。
すなわち、座面を前後左右に傾斜させる揺動機構を備えるので、従来の椅子に活用されてきたリクライニング機能では解決できなかった、長時間にわたって椅子に座った状態を継続する場合に、上半身の体重が臀部や大腿部を圧迫することによって引き起こされる下半身の血行不良やエコノミー症候群等の負担が抑止される。また、足の組みかえや着席時に座板を前後左右に傾斜させることで、着席時に動かすことができる姿勢の範囲が拡大し、より快適に着座した状態を継続することが可能になる。更に、椅子の座板を前後左右に傾斜させることで、脊椎が左右いずれかに湾曲した脊椎側湾の矯正のための椅子にも活用することができる。
The present invention has the following effects by providing the above configuration.
In other words, because it has a swing mechanism that tilts the seat back and forth, left and right, the weight of the upper body when sitting in a chair for a long time that could not be solved by the reclining function used in conventional chairs However, burdens such as poor circulation of the lower body and economy syndrome caused by pressing the buttocks and thighs are suppressed. In addition, by tilting the seat plate back and forth and left and right when changing seats and sitting, the range of postures that can be moved when sitting is expanded, and it is possible to continue sitting comfortably. Furthermore, by tilting the seat plate of the chair back and forth and right and left, it can be used for a chair for correcting a vertebral side bay where the spine is curved left or right.

以下、本発明の実施形態を、図面に示す実施例を基に説明する。なお、実施形態は下記の例示に限らず、本発明の趣旨から逸脱しない範囲で、前記特許文献など従来公知の技術を用いて適宜設計変更可能である。
例えば、以下に説述する本発明の実施例においては、「上の座板の底面のドーム状の凹部」と「下の座板の上面のドーム状の凸部」を、それぞれ「上の座板の底面のドーム状の凸部」と「下の座板の上面のドーム状の凹部」に入れ替えても同様の効果を得ることができる。
Hereinafter, embodiments of the present invention will be described based on examples shown in the drawings. The embodiment is not limited to the following examples, and the design can be changed as appropriate using a conventionally known technique such as the above-mentioned patent document without departing from the gist of the present invention.
For example, in the embodiment of the present invention described below, “the dome-shaped concave portion on the bottom surface of the upper seat plate” and “the dome-shaped convex portion on the upper surface of the lower seat plate” are respectively referred to as “the upper seat plate”. The same effect can be obtained by replacing “the dome-shaped convex portion on the bottom surface of the plate” and “the dome-shaped concave portion on the upper surface of the lower seat plate”.

本発明の基本構造を成す椅子は、上の座板(U)と下の座板(L)の2枚の座板と、これら2枚の座板を連結させるための12本等の複数本のらせんバネ(S)の組み合わせから成る。   The chair having the basic structure of the present invention has two seat plates, an upper seat plate (U) and a lower seat plate (L), and a plurality of such as 12 seats for connecting these two seat plates. It consists of a combination of helical springs (S).

図1は、下の座板(L)の上面(20f)を真上から見た平面図である。
下の座板(L)の上面(20f)の中央部には、下の座板の略中央を中心とする、直径166mm、高さ25mmのドーム状の凸部(20x)がある。
このドーム状の凸部(20x)の頂点には、直径10mm、長さ10mmの円筒形の、上の座板脱落防止用突起(M)が装着されている。
FIG. 1 is a plan view of the upper surface (20f) of the lower seat plate (L) as viewed from directly above.
At the center of the upper surface (20f) of the lower seat plate (L), there is a dome-shaped convex portion (20x) having a diameter of 166 mm and a height of 25 mm centered on the approximate center of the lower seat plate.
At the apex of the dome-shaped convex part (20x), a cylindrical projection having a diameter of 10 mm and a length of 10 mm and an upper seat plate drop-off prevention (M) is mounted.

また、下の座板(L)の略中央を中心とする直径280mmの円の円周(30i)と、下の座板(L)の中心を中心とする直径320mmの円の円周(30e)とに挟まれた斜線で示された部分には、傾斜角度調整用ストッパー(R)が装着されている。
また、下の座板(L)にはらせんバネ(S)を取り付けるための穴(H)が合計12ヵ所に設けられている。
Further, the circumference (30i) of a circle having a diameter of 280 mm centered on the approximate center of the lower seat plate (L), and the circumference of a circle having a diameter of 320 mm centered on the center of the lower seat plate (L) (30e). A tilt angle adjusting stopper (R) is attached to a portion indicated by oblique lines between the two.
The lower seat plate (L) is provided with a total of 12 holes (H) for attaching the helical springs (S).

図2は、下の座板の上面のドーム状の凸部の断面を示す説明図である。
下の座板(L)の上面(20f)のドーム状の凸部(20x)は、図の斜線部に相当し、半径が150mmの球体を、球体の中心から125mmのところで、球体の中心を通る直線に対して直角に切り取ることによってできる、底面の直径が166mm、高さが25mmのドーム(20z)と同形である。
なお、下の座板(L)の上面(20f)のドーム状の凸部(20x)を除く下の座板の(L)のサイズは幅440mm、奥行390mm、厚さ25mmである。
FIG. 2 is an explanatory view showing a cross section of the dome-shaped convex portion on the upper surface of the lower seat plate.
The dome-shaped convex portion (20x) on the upper surface (20f) of the lower seat plate (L) corresponds to the shaded portion in the figure, and the sphere having a radius of 150 mm is located 125 mm from the center of the sphere, and the center of the sphere is defined. It has the same shape as a dome (20z) having a bottom diameter of 166 mm and a height of 25 mm, which can be obtained by cutting at right angles to a straight line passing through.
The size of the lower seat plate (L) excluding the dome-shaped convex portion (20x) on the upper surface (20f) of the lower seat plate (L) is 440 mm wide, 390 mm deep, and 25 mm thick.

図3は、上の座板(U)の底面(10r)を真上から見た平面図である。
上の座板(U)の底面(10r)の中央部には、上の座板の略中央を中心とする、直径77mm、深さ5mmのドーム状の凹部(10x)がある。
このドーム状の凹部(10x)の頂点には、直径11mm、深さ4mmの上の座板脱落防止用突起挿入用穴(N)が設けられている。
FIG. 3 is a plan view of the upper seat plate (U) as viewed from directly above the bottom surface (10r).
At the center of the bottom surface (10r) of the upper seat plate (U), there is a dome-shaped recess (10x) having a diameter of 77 mm and a depth of 5 mm centered on the approximate center of the upper seat plate.
At the apex of the dome-shaped recess (10x), a protrusion insertion hole (N) having a diameter of 11 mm and a depth of 4 mm for preventing the seat plate from falling off is provided.

また、上の座板(U)にはらせんバネ(S)を取り付けるための穴(H)が合計12ヶ所に設けられている。   The upper seat plate (U) is provided with a total of 12 holes (H) for attaching the helical springs (S).

図4は、上の座板の底面のドーム状の凹部の断面を示す説明図である。
上の座板(U)の底面(10r)のドーム状の凹部(10x)は、半径が150mmの球体を、球体の中心から145mmのところで、球体の中心を通る直線に対して直角に切り取ることによってできる、底面の直径が77mm、高さが5mmのドーム(10z)と同形である。
なお、上の座板(U)の底面(10r)のドーム状の凹部(10x)を含む上の座板の(U)のサイズは幅450mm、奥行400mm、厚さ25mmである。
FIG. 4 is an explanatory view showing a cross section of a dome-shaped recess on the bottom surface of the upper seat plate.
The dome-shaped recess (10x) on the bottom surface (10r) of the upper seat plate (U) cuts a sphere having a radius of 150 mm perpendicular to a straight line passing through the center of the sphere at 145 mm from the center of the sphere. This is the same shape as the dome (10z) having a bottom diameter of 77 mm and a height of 5 mm.
The upper seat plate (U) including the dome-shaped recess (10x) on the bottom surface (10r) of the upper seat plate (U) has a width of 450 mm, a depth of 400 mm, and a thickness of 25 mm.

本発明は、大小様々なデザイン、サイズ、用途の椅子を対象とすることができるが、ここでは好適実施例として、上の座板(U)のサイズが幅450mm、奥行が400mmの椅子を1例挙げて説述する。なお、上の座板(U)の前後左右の側面(10a、10b、10c、10d)に取り付けられたハサミ込防止板(V、W)を含む場合の座板のサイズは、幅456mm、奥行406mmである。   The present invention can be applied to chairs of various designs, sizes and applications, but here, as a preferred embodiment, a chair having a size of the upper seat plate (U) of 450 mm in width and 400 mm in depth is one. Explain with an example. In addition, the size of the seat plate when including the scissors insertion prevention plates (V, W) attached to the front, rear, left and right side surfaces (10a, 10b, 10c, 10d) of the upper seat plate (U) is 456 mm in width and depth 406 mm.

また、本発明を活用して製作される椅子は、デザイン、サイズ、用途、強度、重量等に応じて様々な材質の材料を使用することが可能である。
らせんバネ(S)、らせんバネ固定用ピン(P)、上の座板脱落防止用突起(M)の3点はステンレス製、ハサミ込み防止板(V、W)はアクリル製、傾斜角度調整用ストッパー(R)は硬質ゴム製で、その他の部分はすべて木製であるものが有用に使用できる。
In addition, chairs manufactured by utilizing the present invention can use materials of various materials according to design, size, application, strength, weight, and the like.
The spiral spring (S), the spiral spring fixing pin (P), and the upper seat plate fall-off prevention projection (M) are made of stainless steel, and the scissors prevention plates (V, W) are made of acrylic. The stopper (R) is made of hard rubber, and all other parts are made of wood.

図5は、上下の座板(U、L)が水平に連結された状態を示す断面図である。
図5は図3におけるC−C′の線上で垂直にカットされた上の座板(U)と、図1におけるA−A′の線上で垂直にカットされた下の座板(L)を重ね合わせた断面図である。なお、らせんバネ(S)は、わかりやすくするために断面では示していない。
図5における上の座板(U)の幅は450mm、下の座板(L)の幅は440mmである。なお、図5の断面の中心と直角に交差する直線、すなわち図3におけるD−D′の線上で垂直にカットされた上の座板(U)と、図1におけるB−B′の線上で垂直にカットされた下の座板(L)を重ね合わせた断面図では、上の座板(U)の幅は400mm、下の座板(L)の幅は390mmになる。
FIG. 5 is a cross-sectional view showing a state in which the upper and lower seat plates (U, L) are connected horizontally.
5 shows an upper seat plate (U) cut perpendicularly along the line CC ′ in FIG. 3 and a lower seat plate (L) cut perpendicularly along the line AA ′ in FIG. FIG. Note that the spiral spring (S) is not shown in cross section for easy understanding.
The width of the upper seat plate (U) in FIG. 5 is 450 mm, and the width of the lower seat plate (L) is 440 mm. In addition, on the straight line which intersects the center of the cross section of FIG. 5 at right angles, that is, the upper seat plate (U) cut perpendicularly on the line DD ′ in FIG. 3 and on the line BB ′ in FIG. In the cross-sectional view in which the lower seat plate (L) cut vertically is superimposed, the upper seat plate (U) has a width of 400 mm and the lower seat plate (L) has a width of 390 mm.

上の座板(U)の底面(10r)の中心に位置しているドーム状の凹部(10x)と、下の座板(L)の上面(20f)の中心に位置しているドーム状の凸部(20x)は、それぞれが相互に呼応する位置関係にある限り、上下の座板(U、L)の前後左右に移動させることが可能であり、必ずしも上下の座板(U、L)の中心に厳密に位置する必要はない。   A dome-shaped recess (10x) positioned at the center of the bottom surface (10r) of the upper seat plate (U) and a dome-shaped recess positioned at the center of the upper surface (20f) of the lower seat plate (L). The protrusions (20x) can be moved forward, backward, left and right of the upper and lower seat plates (U, L) as long as they are in a mutually corresponding positional relationship, and are not necessarily upper and lower seat plates (U, L). There is no need to be located exactly in the center of.

図6は、図5における上の座板(U)が右側に最大限に傾斜した状態を示す断面図である。図7は、下の座板のドーム状の凸部を示す断面説明図である。図8は、上の座板のドーム状の凹部を示す断面説明図である。なお、らせんバネ(S)は、わかりやすくするために断面では示していない。
図6の断面の中心と直角に交差する直線、すなわち図3におけるD−D′の線上で垂直にカットされた上の座板(U)と、図1におけるB−B′の線上で垂直にカットされた下の座板(L)を重ね合わせた断面図では、上の座板(U)の傾斜角度は約3度で、上の座板(U)の左右の両端の高低差は約22mmである。
FIG. 6 is a cross-sectional view showing a state in which the upper seat plate (U) in FIG. FIG. 7 is a cross-sectional explanatory view showing a dome-shaped convex portion of the lower seat plate. FIG. 8 is a cross-sectional explanatory view showing a dome-shaped recess of the upper seat plate. Note that the spiral spring (S) is not shown in cross section for easy understanding.
A straight line perpendicular to the center of the cross section of FIG. 6, that is, an upper seat plate (U) cut perpendicularly on the line DD ′ in FIG. 3 and a vertical line on the line BB ′ in FIG. In the sectional view in which the cut lower seat plate (L) is overlapped, the inclination angle of the upper seat plate (U) is about 3 degrees, and the height difference between the left and right ends of the upper seat plate (U) is about 3 degrees. 22 mm.

図6における上の座板(U)の傾斜角度は約3度で、上の座板(U)の左右の両端の高低差は約24mmである。
この状態は、下の座板(L)の上面(20f)の中心部に設けられた、図1、図2、図7に示される直径166mm、高さ25mmのドーム状の凸部(20x)に、上の座板(U)の底面(10r)の中心部に設けられた、図3、図4、図8で示される直径77mm、深さ5mmのドーム状の凹部(10x)を重ね合わせて上下の座板を結合させることによって作り出すことが可能である。
The inclination angle of the upper seat plate (U) in FIG. 6 is about 3 degrees, and the height difference between the left and right ends of the upper seat plate (U) is about 24 mm.
In this state, a dome-shaped convex portion (20x) having a diameter of 166 mm and a height of 25 mm shown in FIGS. 1, 2, and 7, provided at the center of the upper surface (20 f) of the lower seat plate (L). And a dome-shaped recess (10x) having a diameter of 77 mm and a depth of 5 mm shown in FIGS. 3, 4 and 8 provided at the center of the bottom surface (10r) of the upper seat plate (U). Can be produced by combining the upper and lower seat plates.

なお、上下2枚の座板(U、L)が重ね合わさった状態において、上の座板(U)の脱落を防止するために、下の座板(L)の上面(20f)のドーム状の凸部(20x)の頂点に、直径10mm、長さ10mmのステンレス製の円筒形の上の座板脱落防止用突起(M)が、図1、図5、図6、図7で示されるように、上から3mmをドーム状の凸部(20x)から出た状態で装着されている。
そして、この上の座板脱落防止用突起(M)に呼応するように、上の座板(U)の底面(10r)のドーム状の凹部(10x)の中心部に、図3、図5、図6、図8で示される、直径11mm、深さ4mmの円筒形の上の座板脱落防止用突起挿入穴(N)が設けられている。
上の座板(U)の底面(10r)のドーム状の凹部(10x)と、下の座板(L)の上面(20f)のドーム状の凸部(20x)を、上の座板脱落防止用突起挿入穴(N)に上の座板脱落防止用突起(M)が挿入された形で重ね合わせることで、上の座板(U)の脱落を防止することが可能である。
In order to prevent the upper seat plate (U) from falling off when the upper and lower seat plates (U, L) are overlapped, the dome shape of the upper surface (20f) of the lower seat plate (L) is used. On the top of the convex part (20x) of FIG. 1, FIG. 5, FIG. 6, FIG. 7 shows a protrusion (M) for preventing the base plate from falling on a stainless steel cylinder having a diameter of 10 mm and a length of 10 mm. Thus, it is mounted in a state where 3 mm is projected from the top from the dome-shaped convex portion (20x).
3 and 5 at the center of the dome-shaped recess (10x) on the bottom surface (10r) of the upper seat plate (U) so as to correspond to the upper seat plate fall-off preventing projection (M). 6 and 8 are provided with a protrusion insertion hole (N) for preventing a seat plate from falling off on a cylindrical shape having a diameter of 11 mm and a depth of 4 mm.
The dome-shaped concave portion (10x) on the bottom surface (10r) of the upper seat plate (U) and the dome-shaped convex portion (20x) on the upper surface (20f) of the lower seat plate (L) fall off the upper seat plate. It is possible to prevent the upper seat plate (U) from falling off by overlapping the upper seat plate drop-off preventing projection (M) in the shape of the prevention projection insertion hole (N).

さらに、上下の座板(U、L)の連結力を増し、かつ上の座板(U)が傾斜した状態の時に上の座板(U)に掛るよじれを防止し、より安定して上下の座板(U、L)を連結するばかりでなく、上の座板(U)に適当なクッション効果を持たせて快適な座り心地を得るために、上下の座板(U、L)の間には直径10mmのらせんバネ(S)が合計12本、若干引き伸ばされた状態で、図5、図6、図10で示す通り取り付けられている。らせんバネ(S)は、負荷をかけない状態では60mmのバネを70mmに伸ばした程度の状態が好ましい。
なお、これらのらせんバネ(S)を取り付けるために上下の座板(U、L)に空けられているらせんバネ用穴(H)の直径は15mmである。これらのらせんバネ用穴(H)の配置は図1、図3、図5、図6、図10に示す通りである。
Further, the connecting force of the upper and lower seat plates (U, L) is increased, and when the upper seat plate (U) is inclined, the upper seat plate (U) is prevented from being kinked and more stably moved up and down. The upper and lower seat plates (U, L) are not only connected to the upper seat plate (U), but also have a suitable cushioning effect. Between them, a total of 12 helical springs (S) having a diameter of 10 mm are slightly stretched and attached as shown in FIGS. 5, 6, and 10. The helical spring (S) is preferably in a state in which a 60 mm spring is extended to 70 mm when no load is applied.
In addition, the diameter of the hole (H) for helical springs vacated in the upper and lower seat plates (U, L) for attaching these helical springs (S) is 15 mm. The arrangement of these spiral spring holes (H) is as shown in FIG. 1, FIG. 3, FIG. 5, FIG.

図9は、らせんバネの固定部周辺の斜視説明図である。
らせんバネ(S)を上下の座板(U、L)に固定するために、らせんバネ固定用ピン収納ミゾ(Q)に、らせんバネ(S)の先端がらせんバネ固定用ピン(P)で固定される。
図9に示されるらせんバネ固定用ピン収納ミゾ(Q)は長さ45mm、幅10mm、深さ6mmで、図10に示す通り上の座板(U)の上面(10f)と、下の座板(L)の底面(20r)上に、共に、それぞれの座板の外周線と略平行になるように設置されている。なお、らせんバネ固定用ピンはステンレス製で、直径5mm、長さ35mmの円筒形をしている。
FIG. 9 is a perspective explanatory view around the fixing portion of the helical spring.
In order to fix the helical spring (S) to the upper and lower seat plates (U, L), the spiral spring fixing pin (P) has a spiral spring fixing pin (P) at the tip of the helical spring (S). Fixed.
The helical spring fixing pin groove (Q) shown in FIG. 9 is 45 mm long, 10 mm wide, and 6 mm deep. As shown in FIG. 10, the upper surface (10f) of the upper seat plate (U) and the lower seat On the bottom surface (20r) of the plate (L), both are installed so as to be substantially parallel to the outer peripheral line of each seat plate. The pin for fixing the helical spring is made of stainless steel and has a cylindrical shape with a diameter of 5 mm and a length of 35 mm.

図10は、らせんバネ(S)が取り付けられた状態の上の座板の上面の平面図である。
図10では上の座板(U)の上面(10f)のみが示されている。下の座板(L)の底面(20r)上のらせんバネ固定用ピン収納ミゾ(Q)は、それぞれ上の座板(U)の上面(10f)に設置されたらせんバネ固定用ピン収納ミゾ(Q)の真下に位置している。
FIG. 10 is a plan view of the upper surface of the upper seat plate with the helical spring (S) attached.
In FIG. 10, only the upper surface (10f) of the upper seat plate (U) is shown. The spiral spring fixing pin accommodation groove (Q) on the bottom surface (20r) of the lower seat plate (L) is installed on the upper surface (10f) of the upper seat plate (U), respectively. It is located directly under (Q).

上の座板(U)の最大傾斜角度を約3度に制限するために、下の座板(L)の上面(20f)に、下の座板(L)の中心を円の中心とする直径280mmの円の円周(30i)と、直径320mmの円の円周(30e)に挟まれた部分(図1の斜線部)に、図1、図5、図6で示す通り、幅20mmの硬質ゴム製のドーナツ状の傾斜角度調整用ストッパー(R)が装着されている。傾斜角度調整用ストッパー(R)は内側の円周(30i)の高さが13mm、外側の円周(30e)の高さが11mmで、上の座板(U)の最大傾斜角度に合わせて内側から外側に向かって約3度傾斜している。   In order to limit the maximum inclination angle of the upper seat plate (U) to about 3 degrees, the center of the lower seat plate (L) is the center of the circle on the upper surface (20f) of the lower seat plate (L). As shown in FIGS. 1, 5, and 6, the width of the circle (30 i) having a diameter of 280 mm and the portion sandwiched between the circle (30 e) of the circle having a diameter of 320 mm have a width of 20 mm. A hard rubber donut-shaped tilt angle adjusting stopper (R) is mounted. The inclination angle adjusting stopper (R) has an inner circumference (30i) having a height of 13 mm and an outer circumference (30e) having a height of 11 mm in accordance with the maximum inclination angle of the upper seat plate (U). It is inclined about 3 degrees from the inside to the outside.

上の座板(U)の左側の側面(10c)と右側の側面(10d)にはアクリル製の長さ400mm、幅60mm、厚さ3mmのハサミ込み防止板(V)が、また上の座板(U)の前方の側面(10a)と後方の側面(10b)にはアクリル製の長さ456mm、幅60mm、厚さ3mmのハサミ込み防止板(W)が図3、図5、図6、図10に示す通り装着されている。これは上の座板(U)が傾斜した時に下の座板(L)との間にできる隙間に指や物がハサミ込まれることを防止するためのものである。
上下の座板(U、L)を椅子のフレームに取り付ける際には、上の座板(U)の傾斜時にハサミ込み防止板(V、W)の先端が、椅子のフレームに接触しないための若干のスペースを確保することが望まれる。
The left side surface (10c) and the right side surface (10d) of the upper seat plate (U) are provided with an acrylic scissors prevention plate (V) having a length of 400 mm, a width of 60 mm, and a thickness of 3 mm. On the front side surface (10a) and the rear side surface (10b) of the plate (U) are scissor penetration prevention plates (W) made of acrylic having a length of 456 mm, a width of 60 mm, and a thickness of 3 mm. , As shown in FIG. This is for preventing a finger or an object from being scissored in a gap formed between the upper seat plate (U) and the lower seat plate (L).
When attaching the upper and lower seat plates (U, L) to the chair frame, the tip of the scissors prevention plate (V, W) is not in contact with the chair frame when the upper seat plate (U) is inclined. It is desirable to secure some space.

本発明は、長時間にわたって椅子に着席した状態を維持しなければならない人が使用する椅子に有用である。長距離トラックやタクシーの運転手のための椅子、航続距離の長い航路を飛ぶ飛行機のパイロットのための椅子など広い用途がある。また、利用者が椅子から一時的に立ち上がって歩行することや、あるいは足を左右に組むことができる場合でも、ほとんど一日中座りっぱなしの状態で仕事をする事務職員や工場作業員等が使用する椅子にも適用できるので、より快適に長時間にわたって座ったままの姿勢を継続することができることを考慮すれば、本発明はあらゆる椅子への活用が可能である。
また、直立した状態の人を背後から見た場合に、本来床面に対して垂直であるべき脊椎が左右いずれかに湾曲してしまう、脊椎側湾の矯正にも利用できる。例えば、背後から見て脊椎が左側に湾曲している人が、すなわち背後から見て上半身が右側に偏っている人が、椅子の座板を正面から見て右側よりも左側を高くした状態の椅子に座った場合には、上半身を水平に保とうとして、上体を背後から見て左側に傾けようとする意識が働くために脊椎の左側への湾曲が矯正される効果が得られる。反対に、脊椎が右側に湾曲している人の場合には、座板を左側よりも右側を高くした状態の椅子に座ることで同様の矯正効果が得られ、産業上利用価値が高い。
INDUSTRIAL APPLICABILITY The present invention is useful for a chair used by a person who must maintain a seated state for a long time. There are a wide range of uses, such as chairs for long-distance trucks and taxi drivers, and chairs for airplane pilots flying on long-distance routes. Also used by office workers, factory workers, etc. who work while sitting almost all day even when the user can stand up from a chair and walk, or if his / her legs can be crossed. Since the present invention can also be applied to a chair, the present invention can be applied to any chair in consideration of being able to continue a comfortable sitting posture for a long time.
In addition, when a person standing upright is viewed from behind, the spine that should be perpendicular to the floor surface may be bent left or right. For example, a person whose spine is curved to the left when viewed from the back, that is, a person whose upper body is biased to the right when viewed from the back, has a chair plate that is viewed from the front with the left side higher than the right side. When sitting in a chair, the consciousness of tilting the upper body to the left side when viewed from behind is tried to keep the upper body horizontal, so the effect of correcting the curvature of the spine to the left side can be obtained. On the contrary, in the case of a person whose spine is curved to the right side, the same correction effect can be obtained by sitting on a chair in which the right side is higher than the left side, and the industrial utility value is high.

下の座板の上面の平面図Top view of the bottom seat plate 下の座板の上面のドーム状の凸部の説明図Explanatory drawing of the dome-shaped convex part on the upper surface of the lower seat plate 上の座板の底面の平面図Top view of the bottom surface of the upper seat 上の座板の底面のドーム状の凹部の説明図Explanatory drawing of the dome-shaped recess on the bottom of the upper seat plate 上下の座板の断面図(上の座板が水平の状態の時)Cross section of the upper and lower seats (when the upper seat is horizontal) 上下の座板の断面図(上の座板が右側に最大に傾斜した状態の時)Cross-sectional view of the upper and lower seats (when the upper seat is tilted to the right to the maximum) 下の座板のドーム状の凸部を示す断面説明図Cross-sectional explanatory drawing showing the dome-shaped convex part of the lower seat plate 上の座板のドーム状の凹部を示す断面説明図Cross-sectional explanatory drawing showing the dome-shaped recess of the upper seat plate らせんバネの固定部周辺の斜視説明図Perspective explanatory view around the fixed part of the helical spring らせんバネが取り付けられた状態の上の座板の上面の平面図Top view of the upper surface of the seat plate with the helical spring attached

符号の説明Explanation of symbols

U 上の座板
L 下の座板
S らせんバネ
H らせんバネ用穴
P らせんバネ固定用ピン
Q らせんバネ固定用ピン収納ミゾ
R 傾斜角度調整用ストッパー
M 上の座板脱落防止用突起
N 上の座板脱落防止用突起挿入用穴
V ハサミ込み防止板(長さ400mm)
W ハサミ込み防止板(長さ456mm)
10f 上の座板の上面
10r 上の座板の底面
10a 上の座板の前方の側面
10b 上の座板の後方の側面
10c 上の座板の左側の側面
10d 上の座板の右側の側面
10x 上の座板の底面のドーム状の凹部
10y 上の座板の底面のドーム状の凹部の外周線
10z 上の座板の底面のドーム状の凹部(10x)と同一のドーム(斜線部)
20f 下の座板の上面
20r 下の座板の底面
20a 下の座板の前方の側面
20b 下の座板の後方の側面
20c 下の座板の左側の側面
20d 下の座板の右側の側面
20x 下の座板の上面のドーム状の凸部
20y 下の座板の上面のドーム状の凸部の外周線
20z 下の座板の上面のドーム状の凸部(20x)と同一のドーム(斜線部)
30f 傾斜角度調整用ストッパーの上面
30r 傾斜角度調整用ストッパーの底面
30e 傾斜角度調整用ストッパーの側面(外周側)
30i 傾斜角度調整用ストッパーの側面(内周側)
40f ハサミ込み防止板の表て面
40r ハサミ込み防止板の裏面
40u ハサミ込み防止板の上面
40l ハサミ込み防止板の底面
40s ハサミ込み防止板の側面
U Upper seat plate L Lower seat plate S Helical spring H Helical spring hole P Helical spring fixing pin Q Helical spring fixing pin accommodation groove R Inclination angle adjustment stopper M Upper seat plate fall-out prevention projection N Protrusion insertion hole for seat plate fall prevention V Scissor insertion prevention plate (length 400 mm)
W Scissors insertion prevention plate (length 456mm)
10f Upper surface of the seat plate 10r Bottom surface of the seat plate 10a Front side surface of the upper seat plate 10b Rear side surface of the upper seat plate 10c Left side surface of the upper seat plate 10d Right side surface of the upper seat plate The dome-shaped recess on the bottom surface of the seat plate on 10x The outer circumference of the dome-shaped recess on the bottom surface of the seat plate on 10y The same dome (shaded portion) as the dome-shaped recess (10x) on the bottom surface of the seat plate on 10z
20f Upper surface of lower seat plate 20r Bottom surface of lower seat plate 20a Front side surface of lower seat plate 20b Rear side surface of lower seat plate 20c Left side surface of lower seat plate 20d Right side surface of lower seat plate 20x Dome-shaped convex portion on the upper surface of the lower seat plate 20y Perimeter line of the dome-shaped convex portion on the upper surface of the lower seat plate 20z Dome identical to the dome-shaped convex portion (20x) on the upper surface of the lower seat plate (Hatched area)
30f Top surface of the tilt angle adjusting stopper 30r Bottom surface of the tilt angle adjusting stopper 30e Side surface (outer peripheral side) of the tilt angle adjusting stopper
30i Side of the tilt angle adjustment stopper (inner circumference)
40f Front surface of scissor penetration prevention plate 40r Back side of scissor penetration prevention plate 40u Top surface of scissor penetration prevention plate 40l Bottom surface of scissor penetration prevention plate 40s Side surface of scissor penetration prevention plate

Claims (3)

座面を前後左右に傾斜させる揺動機構を備えた椅子であって、
その揺動機構が、上下2段に積層される上座板及び下座板と、その両座板の間に連結される複数の弾性体とを有し、
上座板と下座板とが接する部位である上座板の下面における略中央部と下座板の上面における略中央部とに、両者を相対的に揺動可能にする曲面部を設けた
ことを特徴とする椅子。
A chair provided with a swinging mechanism for tilting the seat surface back and forth and left and right;
The swing mechanism has an upper seat plate and a lower seat plate stacked in two upper and lower stages, and a plurality of elastic bodies connected between the both seat plates,
A curved surface portion is provided on the substantially central portion of the lower surface of the upper seat plate and the substantially central portion of the upper surface of the lower seat plate, where the upper seat plate and the lower seat plate are in contact with each other. Characteristic chair.
上座板の下面と下座板の上面の曲面部が、略ドーム状の凸部と略ドーム状の凹部とから成る
請求項1に記載の椅子。
The chair according to claim 1, wherein the curved surface portions of the lower surface of the upper seat plate and the upper surface of the lower seat plate include a substantially dome-shaped convex portion and a substantially dome-shaped concave portion.
略ドーム状の凸部の頂部に突起を設けると共に、その突起が嵌合する穴を略ドーム状の凹部の頂部に設けた
請求項2に記載の椅子。
The chair according to claim 2, wherein a protrusion is provided on the top of the substantially dome-shaped convex portion, and a hole into which the protrusion is fitted is provided on the top of the substantially dome-shaped concave portion.
JP2008185329A 2008-07-16 2008-07-16 Chair Pending JP2010022487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008185329A JP2010022487A (en) 2008-07-16 2008-07-16 Chair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008185329A JP2010022487A (en) 2008-07-16 2008-07-16 Chair

Publications (1)

Publication Number Publication Date
JP2010022487A true JP2010022487A (en) 2010-02-04

Family

ID=41728905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008185329A Pending JP2010022487A (en) 2008-07-16 2008-07-16 Chair

Country Status (1)

Country Link
JP (1) JP2010022487A (en)

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