JP4733362B2 - Chair cushion structure - Google Patents
Chair cushion structure Download PDFInfo
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- JP4733362B2 JP4733362B2 JP2004140670A JP2004140670A JP4733362B2 JP 4733362 B2 JP4733362 B2 JP 4733362B2 JP 2004140670 A JP2004140670 A JP 2004140670A JP 2004140670 A JP2004140670 A JP 2004140670A JP 4733362 B2 JP4733362 B2 JP 4733362B2
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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
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
- A47C27/15—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays consisting of two or more layers
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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
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
- A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
- A47C27/144—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities inside the mattress or cushion
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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
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
- A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
- A47C27/146—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities on the outside surface of the mattress or cushion
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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
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
- A47C27/148—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays of different resilience
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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
- A47C7/02—Seat parts
- A47C7/029—Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions
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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
- A47C7/02—Seat parts
- A47C7/24—Upholstered seats
Description
本発明は椅子の座部に用いるクッション構造に関する。 The present invention relates to a cushion structure used for a seat portion of a chair.
椅子に着席した場合、座り心地を良くするためには座り姿勢を理想的な形に保持し、かつ、体圧を局部的に大きくすることなく広く分散させる必要がある。 When sitting in a chair, it is necessary to maintain a sitting posture in an ideal shape and to disperse widely without locally increasing body pressure in order to improve sitting comfort.
このようなことから、従来、下層に平板上の硬いクッション体１０１を配置し、上層に平板状の柔かいクッション体１０２を配置したクッション構造が知られている。 For this reason, conventionally, a cushion structure is known in which a hard cushion body 101 on a flat plate is disposed in the lower layer and a flat soft cushion body 102 is disposed in the upper layer.
更に、従来、図７に示すように、体圧が集中する部分には小さな反発力をもって体圧を支えるクッション体を使用し、このクッション体に隣接して、このクッション体よりも大きな反発力をもつクッション体を配置するクッション構造も知られている（特許文献１参照）。
ところで、着席した場合に、椅子の座部に作用する体圧は万人が同じではない。
そのため、前記従来のように、単に平板状のクッション体を積層したものや平面内において部分的にクッション体の硬さを変えたものにおいては万人の体圧を良好に分散させることは困難である。
By the way, when seated, the body pressure acting on the seat of the chair is not the same for everyone.
For this reason, it is difficult to disperse the body pressure of all people well in the case of simply laminating a flat cushion body as in the conventional case or in which the hardness of the cushion body is partially changed in the plane. is there.
そこで本発明は、第１のクッション体の表面を万人に略共通するラインの基本面とし、この第１のクッション体の上面に、着座した人によって前記基本面より微妙な体圧のズレやサイズの違いを吸収するための、前記第１のクッション体よりも柔かい第２のクッション体を設けて、種々な体形の人においても体圧分散が良好に行える椅子のクッション構造を提供することを目的とするものである。 Therefore, the present invention uses the surface of the first cushion body as a basic surface of a line that is substantially common to all people, and the upper surface of the first cushion body has a slight difference in body pressure from the basic surface by a person sitting on the surface. Providing a cushion structure for a chair that can disperse body pressure satisfactorily by providing a second cushion body that is softer than the first cushion body to absorb the difference in size, even in people of various body shapes. It is the purpose.
前記の課題を解決するために、請求項１記載の発明は、上面を着席した際の臀部から膝までの基本ラインに沿った波状の曲面に形成した第１クッション体と、該第１クッション体の上面に重ね合わされた第２クッション体を有し、前記第１クッション体と、第２クッション体を、後者が前者よりも柔かい材質で形成し、
前記第１クッション体の上面の後部に、前方から後方に向かって立上がる立上がり面を設け、
前記第２クッション体における臀部が位置する部分の上面に、左右方向の切り込みを形成し、該切り込みを、臀部が位置する部分の前半部と後半部に、それぞれ前後方向に適宜間隔を有して複数本形成し、前半部の切り込みの前側壁面を垂直面に、後側壁面を下方に至るにつれて前側に傾斜する傾斜面に形成し、後半部の切り込みの後側壁面を垂直面に、前側壁面を下方に至るにつれて後側に傾斜する傾斜面に形成したことを特徴とするものである。
In order to solve the above-mentioned problem, the invention according to claim 1 is a first cushion body formed on a wavy curved surface along a basic line from the buttocks to the knee when the upper surface is seated, and the first cushion body. A second cushion body superimposed on the upper surface of the first cushion body and the second cushion body, the latter being made of a material softer than the former,
On the rear part of the upper surface of the first cushion body, a rising surface that rises from the front toward the rear is provided,
A notch in the left-right direction is formed on the upper surface of the portion where the collar portion is located in the second cushion body, and the notch is appropriately spaced in the front-rear direction in the front half portion and the rear half portion of the portion where the collar portion is located. The front side wall surface of the front half cut is formed into a vertical surface, the rear side wall surface is inclined to the front side as it goes downward, and the rear side wall surface of the rear half cut is formed into a vertical surface, the front side wall surface by also in the range, characterized in that formed on the inclined surface inclined to the rear side as the lead downwardly.
本発明においては、第１クッション体の上面に形成した基本ラインと着座者の着座ラインとに微妙なズレやサイズの相違が生じた場合に、このズレやサイズの相違部分を柔かい第２クッション体で埋めて、体圧を良好に分散することができる。
また、着席状態において臀部がズレた際に、そのズレに追従して第２クッション体の上面部も移動する。
また、着席者が背を背もたれ側へ倒した場合や前屈みした場合の臀部のズレに第２クッション体の上面部を良好に追従させることができる。
In the present invention, when a slight deviation or size difference occurs between the basic line formed on the upper surface of the first cushion body and the seating line of the seated person, the second cushion body softens the difference or difference in size. To fill the body pressure well.
Further, when the buttocks are displaced in the seated state, the upper surface portion of the second cushion body also moves following the displacement.
Moreover, the upper surface part of a 2nd cushion body can be made to follow favorably when the seated person falls back to the backrest side, or when the seat part is bent forward.
請求項２記載の発明は、請求項１記載の発明において、前記第１クッション体を高硬度ウレタンで形成し、前記第２クッション体を低硬度ウレタンで形成したものである。
本発明においても前記と同様の作用を発揮する。
According to a second aspect of the present invention, in the first aspect of the invention, the first cushion body is formed of high-hardness urethane, and the second cushion body is formed of low-hardness urethane.
In the present invention, the same effect as described above is exhibited.
請求項３記載の発明は、請求項１又は２記載の発明において、前記第１クッション体内に、大腿部から膝部が当る部分に位置して空胴部を形成したものである
本発明においては、更に、大腿部から膝裏への圧力を逃すことができる。
According to a third aspect of the present invention, in the first or second aspect of the present invention, in the first cushion body, a cavity portion is formed at a portion where the knee portion hits from the thigh. Can further relieve pressure from the thigh to the back of the knee.
本発明によれば、体圧分散が良好で座り心地の良いクッション構造を提供できる。
また、着席状態において臀部がズレた際に、第２クッション体の上面部も追従移動し、座り心地を一層良好にすることができる。
ADVANTAGE OF THE INVENTION According to this invention, body pressure dispersion | distribution is favorable and it can provide the cushion structure with sufficient seating comfort.
Further, when the buttocks are displaced in the seated state, the upper surface portion of the second cushion body is also moved following, so that the sitting comfort can be further improved.
請求項３記載の発明によれば、更に、大腿部から膝裏への圧力を逃し、一層座り心地のよいクッション構造を提供できる。 According to the third aspect of the present invention, it is possible to release a pressure from the thigh to the back of the knee, and to provide a cushion structure that is more comfortable to sit on.
本発明を実施するための最良の形態を図１乃至図４に示す実施例に基づいて説明する。
図１は本発明のクッション構造を用いた椅子の略側断面図で、椅子の本体１は、座部２と背もたれ部３とからなる。
The best mode for carrying out the present invention will be described based on the embodiment shown in FIGS.
FIG. 1 is a schematic sectional side view of a chair using the cushion structure of the present invention, and a main body 1 of the chair includes a seat portion 2 and a backrest portion 3.
前記座部２上には第１クッション体４が配置され、該第１クッション体４の上面に第２クッション体５が重ね合わされている。この第１クッション体４と第２クッション体５による複合構造により本発明のクッション構造を構成している。 A first cushion body 4 is disposed on the seat portion 2, and a second cushion body 5 is superimposed on the upper surface of the first cushion body 4. The composite structure of the first cushion body 4 and the second cushion body 5 constitutes the cushion structure of the present invention.
更に、前記第２クッション体５の上面に、巻きウレタンからなる第３のクッション体６が重ね合わされているが、この第３クッション体６は必ずしも必要ではない。そして、これらのクッション体４、５、６は表装材７で被覆されている。 Further, a third cushion body 6 made of wound urethane is superimposed on the upper surface of the second cushion body 5, but the third cushion body 6 is not necessarily required. These cushion bodies 4, 5, 6 are covered with a cover material 7.
次に、前記第１クッション体４について図２及び図４より説明する。
該第１クッション体４の上面４ａは、人が着席した場合に、万人に略共通する臀部から膝までのライン（基本ライン）に似た曲線に形成されている。すなわち、前後方向（Ｘ側が椅子の前側であり、Ｙ側が椅子の後側）の波状に形成されている。
Next, the first cushion body 4 will be described with reference to FIGS.
The upper surface 4a of the first cushion body 4 is formed in a curve resembling a line (basic line) from the buttocks to the knee that is almost common to all people when a person is seated. That is, it is formed in a wave shape in the front-rear direction (X side is the front side of the chair and Y side is the rear side of the chair).
より詳しくは、着席者の臀部が位置する後部に、上側に中心を有する曲面からなる凹面４ｂが形成され、大腿部が位置する前部に、下側に中心を有する曲面からなる凸面４ｃが形成され、更に、前記凹面４ｂの後部が、後方に至るにつれて半径が小さくなる複合曲面で形成された立上がり面４ｄに形成され、凹面４ｂから前記凸面４ｃとが緩やかな曲面４ｅで連続され、更に、凸面４ｃの前端部は下降する曲面４ｆで形成されている。これらの曲面は左右方向（Ｚ方向）において同様に形成されている。 More specifically, a concave surface 4b made of a curved surface having a center on the upper side is formed in the rear portion where the seated portion of the seated person is located, and a convex surface 4c made of a curved surface having a center on the lower side is formed in the front portion where the thigh is located. Further, the rear portion of the concave surface 4b is formed on a rising surface 4d formed of a compound curved surface whose radius decreases toward the rear, and the convex surface 4c is continuous with the gentle curved surface 4e from the concave surface 4b. The front end portion of the convex surface 4c is formed by a curved surface 4f that descends. These curved surfaces are similarly formed in the left-right direction (Z direction).
更に、前記凸面４ｃの内部には、左右方向Ｚに貫通する空胴４ｇが形成されている。
更に、第１クッション体４の下面４ｈは前後方向ＸＹ及び左右方向Ｚにおいて平面に形成されている。
Furthermore, a cavity 4g penetrating in the left-right direction Z is formed inside the convex surface 4c.
Furthermore, the lower surface 4h of the first cushion body 4 is formed in a plane in the front-rear direction XY and the left-right direction Z.
次に、前記第２クッション体について図３及び図４により説明する。
第２クッション体５の下面５ａは、前記第１クッション体４の上面４ａの曲面と合致する曲面に形成されている。すなわち、前記第１クッション体４の凹面４ｂに合致する凸面５ｂと、凸面４ｃに合致する凹面５ｃと、更に、前記立上がり面４ｄに合致する立上がり面５ｄと、前記曲面４ｅと合致する曲面５ｅと、前記曲面４ｆと合致する曲面５ｆとからなる。
Next, the second cushion body will be described with reference to FIGS.
The lower surface 5 a of the second cushion body 5 is formed in a curved surface that matches the curved surface of the upper surface 4 a of the first cushion body 4. That is, a convex surface 5b that matches the concave surface 4b of the first cushion body 4, a concave surface 5c that matches the convex surface 4c, a rising surface 5d that matches the rising surface 4d, and a curved surface 5e that matches the curved surface 4e The curved surface 5f coincides with the curved surface 4f.
この第２クッション体５は、前記第１クッション体４の上面４ａの全面にわたって重なる大きさに形成され、その曲面は左右方向Ｚにおいて同様に形成されている。 The second cushion body 5 is formed in a size that overlaps the entire upper surface 4a of the first cushion body 4, and the curved surface thereof is similarly formed in the left-right direction Z.
更に、第２クッション体５の上面５ｈは、この第２クッション体５を第１クッション体４に重ね合わせた状態において、所望の傾斜面の座面になるように形成されている。図の実施例では略水平面になるように形成されている。 Furthermore, the upper surface 5 h of the second cushion body 5 is formed to be a seat surface of a desired inclined surface in a state where the second cushion body 5 is superimposed on the first cushion body 4. In the embodiment shown in the figure, it is formed so as to be substantially horizontal.
したがって、第２クッション体５は、その凸面５ｂが厚肉で、凹面５ｃ部が薄肉で、曲面５ｆ部が厚肉に形成され、図４に示すように、第２クッション体５を第１クッション体４に重ね合わせた状態では、これらによる肉厚Ｈが全面において略同一肉厚になるようになっている。 Accordingly, the second cushion body 5 is formed such that the convex surface 5b is thick, the concave surface 5c is thin, and the curved surface 5f is thick. As shown in FIG. In a state of being superposed on the body 4, the thickness H due to these becomes substantially the same thickness over the entire surface.
更に、第２クッション体５の上面５ｈ側には、着席した際に臀部が位置する部分、すなわち、凸面５ｂ部の上面側において、左右方向Ｚの切込み６ａ〜６ｄが形成されている。該切り込み６ａ〜６ｄは第２クッション体５の左右方向の全長にわたって形成され、前後方向に複数本、図の例では４本並行して形成されている。 Further, on the upper surface 5 h side of the second cushion body 5, cuts 6 a to 6 d in the left-right direction Z are formed on the portion where the collar portion is located when sitting, that is, on the upper surface side of the convex surface 5 b portion. The notches 6a to 6d are formed over the entire length of the second cushion body 5 in the left-right direction, and are formed in parallel in the front-rear direction, and in the illustrated example, four in parallel.
前記切り込み６ａ〜６ｄのうち、臀部が位置する部分の前半部の切り込み６ａと６ｂは、前側壁面６ｅが垂直面に形成され、後側壁面６ｆが下方に至るにつれて前側に傾斜する傾斜面に形成され、また、後半部に位置する切り込み６ｃ、６ｄは、前側壁面６ｇが下方に至るにつれて後側に傾斜する傾斜面に形成され、後側壁面６ｈが垂直面に形成されている。 Of the cuts 6a to 6d, the cuts 6a and 6b in the front half of the portion where the collar portion is located are formed in an inclined surface in which the front side wall surface 6e is formed as a vertical surface and the rear side wall surface 6f is inclined forward as it goes downward. In addition, the notches 6c and 6d located in the rear half are formed in an inclined surface that inclines toward the rear side as the front side wall surface 6g goes downward, and the rear side wall surface 6h is formed in a vertical surface.
前記第１クッション体４は高硬度ウレタンなどからなる硬質のクッション材で形成され、前記第２クッション体５は、前記第１クッション体４よりも柔かい低硬度ウレタンなどからなる軟質のクッション材で形成されている。 The first cushion body 4 is made of a hard cushion material made of high hardness urethane or the like, and the second cushion body 5 is made of a soft cushion material made of low hardness urethane or the like that is softer than the first cushion body 4. Has been.
次に作用について説明する。
図１及び図４に示すように第１クッション体４と第２クッション体５を重ね合わせて座部を構成した状態で、人が着席すると、その臀部は第１クッション体４の凹面４ｂ部に位置し、大腿部が第１クッション体４の凸面４ｃ部に位置し、膝裏が第１クッション体４の曲面４ｆに位置する。
Next, the operation will be described.
As shown in FIG. 1 and FIG. 4, when a person sits in a state where the first cushion body 4 and the second cushion body 5 are overlapped to form a seat portion, the collar portion is formed on the concave surface 4 b of the first cushion body 4. The thigh is located on the convex surface 4 c of the first cushion body 4, and the back of the knee is located on the curved surface 4 f of the first cushion body 4.
この着席状態においては、第１クッション体４の上面４ａは万人の基本ラインに形成されているが、この基本ラインと着席者個人のラインとは必ずしも合致せず、この個人のラインと基本ラインとには微妙なズレやサイズの相違が生じる。このとき、第１クッション体４の上面に第１クッション体４よりも柔かい第２クッション体５が重ね合わされているため、前記のズレやサイズの相違部分が第２クッション体５で埋められる。したがって、このズレやサイズの相違部分においても体圧分散が行われ、着席面全体の体圧分散が良好に行われる。 In this seated state, the upper surface 4a of the first cushion body 4 is formed on the basic line for everyone, but this basic line and the individual line of the seated person do not necessarily coincide with each other. There are subtle deviations and size differences. At this time, since the second cushion body 5, which is softer than the first cushion body 4, is superimposed on the upper surface of the first cushion body 4, the difference and the difference in size are filled with the second cushion body 5. Therefore, the body pressure is distributed even in the difference in the deviation and the size, and the body pressure is well distributed over the entire seating surface.
また、第１クッション体４に空胴部４ｇを形成したことにより、大腿部から膝部への圧迫（圧力）を逃すことができる。 Further, since the cavity portion 4g is formed in the first cushion body 4, the pressure (pressure) from the thigh to the knee can be released.
また、第１クッション体４における凹面４ｂの後部に立上がり面４ｄが形成されているため、着席者の骨盤の傾きが抑えられ、直立姿勢に近い脊椎Ｓ字カーブを維持するとともに猫背を防止する。すなわち、骨盤が回転しないように支えられ、骨盤から背骨が理想的ラインに保たれる。 Moreover, since the rising surface 4d is formed in the rear part of the concave surface 4b in the 1st cushion body 4, the inclination of a seated person's pelvis is suppressed, the spine S-shaped curve close | similar to an upright posture is maintained, and a stoop is prevented. That is, the pelvis is supported so as not to rotate, and the spine is kept in an ideal line from the pelvis.
また、曲面４ｅにより、着席時において臀部が前側に滑るのを防止することができる。
次に本発明のクッション構造と従来の図７に示すクッション構造の体圧分散の実験結果を図５乃至図８に基づいて説明する。
Further, the curved surface 4e can prevent the buttocks from sliding forward when seated.
Next, experimental results of body pressure dispersion of the cushion structure of the present invention and the conventional cushion structure shown in FIG. 7 will be described with reference to FIGS.
本発明のクッション構造１を図５に示すように、Ｓ組バネ１０で支持し、上部に厚さ１８ｍｍの第３クッション体６を載置して層厚１１８ｍｍとし、第３クッション体６の上面に着席した。 As shown in FIG. 5, the cushion structure 1 of the present invention is supported by an S-set spring 10, and a third cushion body 6 having a thickness of 18 mm is placed on the upper portion to have a layer thickness of 118 mm. I sat down.
また、比較例として、図７に示すようにＳ組バネ１０で本発明の第１クッション体４と同材の平板状の第１クッション体１０１を支持し、その上に本発明の第２クッション体５と同材の平板状の第２クッション体１０２を重ね、更に前記の第３クッション体６と同材、同厚の第３クッション体６を重ね、第３クッション体６の上面に着席した。 As a comparative example, as shown in FIG. 7, a flat first cushion body 101 made of the same material as that of the first cushion body 4 of the present invention is supported by an S-set spring 10 and the second cushion of the present invention is further formed thereon. The second cushion body 102 having the same material as that of the body 5 is stacked, and the third cushion body 6 having the same material and the same thickness as the third cushion body 6 is stacked, and is seated on the upper surface of the third cushion body 6. .
図７に示す比較例の体圧分布は、図８に示す状態であった。この図８において、Ａは１０〜２０ｍｍＨｇの部分を示し、Ｂは２０〜３０ｍｍＨｇの部分を示し、Ｃは３０〜６０ｍｍＨｇの部分を示し、Ｄは６０〜８０ｍｍＨｇの部分を示し、Ｅは８０〜１００ｍｍＨｇの部分を示す。 The body pressure distribution of the comparative example shown in FIG. 7 was in the state shown in FIG. In FIG. 8, A represents a portion of 10 to 20 mmHg, B represents a portion of 20 to 30 mmHg, C represents a portion of 30 to 60 mmHg, D represents a portion of 60 to 80 mmHg, and E represents 80 to 100 mmHg. The part of is shown.
この分布を体の部位別の値で示すと、仙骨＝５８．６ｍｍＨｇ、座骨＝８５．２ｍｍＨｇ、大腿部＝５１ｍｍＨｇ、下腿＝２５ｍｍＨｇ、膝裏＝１６．９ｍｍＨｇであった。 When this distribution is shown by the value of each part of the body, the sacrum = 58.6 mmHg, the sciatica = 85.2 mmHg, the thigh = 51 mmHg, the lower leg = 25 mmHg, and the back of the knee = 16.9 mmHg.
図５に示す本発明における体圧分布は、図６に示す状態であった。この図６において、Ａ〜Ｄは前記図８に示すＡ〜Ｄの値と同様である。本発明においては、前記比較例でみられたＥの値の部分は生じなかった。 The body pressure distribution in the present invention shown in FIG. 5 was in the state shown in FIG. In FIG. 6, A to D are the same as the values of A to D shown in FIG. In the present invention, the portion of E value seen in the comparative example did not occur.
この分布を体の部位別の値で示すと、仙骨＝５１．３ｍｍＨｇ、座骨＝７４．９ｍｍＨｇ、大腿部＝４６．１ｍｍＨｇ、下腿＝１９．３ｍｍＨｇ、膝裏＝１０．７ｍｍＨｇであった。 When this distribution is represented by values according to body parts, the sacrum = 51.3 mmHg, the sciatic bone = 74.9 mmHg, the thigh = 46.1 mmHg, the lower leg = 19.3 mmHg, and the back of the knee = 10.7 mmHg.
以上の結果から、比較例においては、座骨部において際立った大きな体圧が発生しているのに対し、本発明においては、仙骨部、座骨部、大腿部において略平均的な体圧となっていることが分かる。 From the above results, in the comparative example, significant body pressure is generated in the ischial region, whereas in the present invention, the body pressure is approximately average in the sacrum, ischial region, and thigh. I understand that
また、以上のことから、本発明においては次のようなことがいえる。
（１）比較例に比べて、臀部の潰れが小さく、座面とお尻の接触面積が広くなり、小さい値で平均に分散する傾向にある。
（２）座骨回りの局部的な圧力値が低いことから、局部的な痺れが軽減される傾向にある。
（３）座骨の２箇所を支点として大腿部、膝裏へと圧力分散をしているので、下肢への負担を軽減している。
From the above, the following can be said in the present invention.
(1) Compared with the comparative example, the crushing of the buttock portion is small, the contact area between the seating surface and the buttocks is widened, and the values tend to be dispersed at a small value.
(2) Since the local pressure value around the isch bone is low, local numbness tends to be reduced.
(3) Since the pressure is distributed to the thigh and the back of the knee using two points of the ischia as fulcrums, the burden on the lower limbs is reduced.
次に、本発明における第２クッション体５に形成した切り込み６ａ〜６ｄの作用について説明する。 Next, the effect | action of the notches 6a-6d formed in the 2nd cushion body 5 in this invention is demonstrated.
人が着席してその臀部が第２クッション体５を加圧した状態において、背を背もたれ側へ倒した場合には臀部が前側へズレ、また、前屈みした場合は臀部が後ろ側へズレる。このとき、前記のように切り込み６ａ〜６ｄが形成されていることにより、第２クッション体５における臀部の位置する部分が、臀部の前記のズレに容易に追従し、座り心地を良くする。 In a state where a person is seated and the buttocks pressurize the second cushion body 5, the buttocks shift to the front side when the back is tilted to the backrest side, and when the person bends forward, the buttocks shift to the back side. At this time, since the cuts 6a to 6d are formed as described above, the portion of the second cushion body 5 where the heel portion is located easily follows the above-described displacement of the heel portion, thereby improving the sitting comfort.
特に切り込み６ａ〜６ｄを、前記のような形状に形成したので、前側の切り込み６ａ、６ｂにおいては、その、垂直面からなる前側壁面６ｅが傾斜面からなる後側壁面６ｆに比べて応力が小さいため、前側壁面６ｅが後方へ倒れる。また、後側の切り込み６ｃ、６ｄにおいては、その垂直面からなる後側壁面６ｈが傾斜面からなる前側壁面６ｇに比べて応力が小さいため、後側壁面６ｈが前側へ倒れる。したがって、臀部が位置する部分の第２クッション体５の上面部が臀部のズレにより容易に変形追従し、一層座り心地を良くする。 In particular, since the cuts 6a to 6d are formed in the shape as described above, in the front cuts 6a and 6b, the stress is smaller in the front side wall surface 6e made of a vertical surface than the rear side wall surface 6f made of an inclined surface. Therefore, the front side wall surface 6e falls backward. Further, in the rear cuts 6c and 6d, the rear side wall surface 6h is tilted forward because the rear side wall surface 6h made of the vertical surface has a smaller stress than the front side wall surface 6g made of an inclined surface. Therefore, the upper surface portion of the second cushion body 5 at the portion where the heel portion is located easily follows the deformation due to the displacement of the heel portion, thereby further improving the sitting comfort.
なお、前記実施例においては、第２クッション体５をその下面５ａを前記のような波形にし、上面５ｈを平面に形成したが、この第２クッション体５は、前記のように、基本ラインと個人ラインとの相違部を埋めるのに必要な厚さであれば、形状、厚みを問わない。 In the above-described embodiment, the second cushion body 5 is formed such that the lower surface 5a thereof has a corrugated shape as described above, and the upper surface 5h is formed into a flat surface. Any thickness and shape can be used as long as it is necessary to fill the difference from the personal line.
１ 椅子
４ 第１クッション体
４ａ 第１クッション体の上面
４ｇ 空洞部
５ 第２クッション体
DESCRIPTION OF SYMBOLS 1 Chair 4 1st cushion body 4a Upper surface 4g of 1st cushion body Cavity part 5 2nd cushion body
Claims (3)
前記第１クッション体の上面の後部に、前方から後方に向かって立上がる立上がり面を設け、
前記第２クッション体における臀部が位置する部分の上面に、左右方向の切り込みを形成し、該切り込みを、臀部が位置する部分の前半部と後半部に、それぞれ前後方向に適宜間隔を有して複数本形成し、前半部の切り込みの前側壁面を垂直面に、後側壁面を下方に至るにつれて前側に傾斜する傾斜面に形成し、後半部の切り込みの後側壁面を垂直面に、前側壁面を下方に至るにつれて後側に傾斜する傾斜面に形成したことを特徴とする椅子のクッション構造。 A first cushion body formed in a wavy curved surface along a basic line from the buttocks to the knee when the upper surface is seated, and a second cushion body superimposed on the upper surface of the first cushion body, The cushion body and the second cushion body are made of a material that is softer than the former,
On the rear part of the upper surface of the first cushion body, a rising surface that rises from the front toward the rear is provided,
A notch in the left-right direction is formed on the upper surface of the portion where the collar portion is located in the second cushion body, and the notch is appropriately spaced in the front-rear direction in the front half portion and the rear half portion of the portion where the collar portion is located. The front side wall surface of the front half cut is formed into a vertical surface, the rear side wall surface is inclined to the front side as it goes downward, and the rear side wall surface of the rear half cut is formed into a vertical surface, the front side wall surface A cushion structure for a chair, characterized in that it is formed on an inclined surface that is inclined rearward as it goes downward .
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| ATE540599T1 (en) * | 2006-03-31 | 2012-01-15 | Ts Tech Co Ltd | CUSHION BODY, SEAT AND PROCESS OF MANUFACTURING THEREOF |
| JPWO2007114232A1 (en) * | 2006-03-31 | 2009-08-13 | テイ・エス テック株式会社 | Seat seat |
| KR100881460B1 (en) | 2007-11-30 | 2009-02-06 | 일진씨앤에이(주) | Sheet structure of interlinking chairs |
| JP6102560B2 (en) * | 2013-06-21 | 2017-03-29 | トヨタ紡織株式会社 | Cushion body for vehicle seat |
| JP7417928B2 (en) * | 2020-01-27 | 2024-01-19 | カリモク家具株式会社 | cushion structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57351U (en) * | 1980-05-30 | 1982-01-05 | ||
| JPS6125850U (en) * | 1984-07-23 | 1986-02-15 | しげる工業株式会社 | Seat cushion body |
| JPH01161649U (en) * | 1988-04-30 | 1989-11-09 | ||
| JPH04502875A (en) * | 1989-09-08 | 1992-05-28 | キーンライン，クルト | seat top |
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| JPS57351A (en) * | 1980-06-03 | 1982-01-05 | Hino Motors Ltd | Auxiliary starting device of internal combustion engine |
| JPS6125850A (en) * | 1984-07-16 | 1986-02-04 | Ricoh Co Ltd | Nozzle for ink jet recording apparatus |
| JPH01161649A (en) * | 1987-12-18 | 1989-06-26 | Nec Corp | Ion implanter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57351U (en) * | 1980-05-30 | 1982-01-05 | ||
| JPS6125850U (en) * | 1984-07-23 | 1986-02-15 | しげる工業株式会社 | Seat cushion body |
| JPH01161649U (en) * | 1988-04-30 | 1989-11-09 | ||
| JPH04502875A (en) * | 1989-09-08 | 1992-05-28 | キーンライン，クルト | seat top |
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