JP7295177B2 - posture holder - Google Patents

posture holder Download PDF

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JP7295177B2
JP7295177B2 JP2021138275A JP2021138275A JP7295177B2 JP 7295177 B2 JP7295177 B2 JP 7295177B2 JP 2021138275 A JP2021138275 A JP 2021138275A JP 2021138275 A JP2021138275 A JP 2021138275A JP 7295177 B2 JP7295177 B2 JP 7295177B2
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support
seated person
posture
buttocks
holder
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JP2021183191A (en
JP2021183191A5 (en
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剛 松下
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MTG Co Ltd
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MTG Co Ltd
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/02Seat parts
    • A47C7/021Detachable or loose seat cushions
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C3/00Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/12Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats with shell-shape seat and back-rest unit, e.g. having arm rests
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C3/00Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/16Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats of legless type, e.g. with seat directly resting on the floor; Hassocks; Pouffes
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/02Seat parts
    • A47C7/029Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions

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  • Orthopedics, Nursing, And Contraception (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Health & Medical Sciences (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Nursing (AREA)

Description

この発明は、例えば椅子の座部に載せて使用されるものであって、着座者の正しい姿勢を維持することが可能な姿勢保持具に関するものである。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a posture retainer that is placed on the seat of a chair, for example, and that is capable of maintaining a correct posture of a seated person.

従来、この種の姿勢保持具としては、例えば特許文献1に開示される構成が提案されている。この従来構成においては、姿勢保持具全体が発泡ポリウレタン等の厚手のクッション材により一体に成形されている。この姿勢保持具には、着座者の体重の大部分を負担する座部が備えられている。 Conventionally, a configuration disclosed in Patent Document 1, for example, has been proposed as this type of posture holder. In this conventional configuration, the posture holder as a whole is integrally molded with a thick cushioning material such as foamed polyurethane. This posture retainer has a seat that bears most of the weight of the seated person.

特開2011-254878号公報JP 2011-254878 A

この従来構成においては、着者を安定して支持することが難しい。この結果、着座者は正しい姿勢をとりにくい。 In this conventional configuration , it is difficult to stably support a seated person . As a result, it is difficult for the seated person to take a correct posture.

この発明は、このような従来の技術に存在する問題点に着目してなされたものである。その目的は、着座者の正しい姿勢を維持することにある。 The present invention has been made by paying attention to such problems existing in the conventional technology. Its purpose is to maintain the correct posture of the seated person .

上記の目的を達成するために、この姿勢保持具は、着座者の臀部を支持可能な臀部支持部と前記臀部支持部の上方に位置する上部突出部とを備え、前記上部突出部の左右の幅は、前記臀部支持部との付け根である付け根部より同付け根部の上方が広く、前記上部突出部は左右方向の中央部より左右両側部が前方に位置している。 In order to achieve the above object, the posture retainer includes a buttocks support capable of supporting the buttocks of a seated person and an upper protrusion positioned above the buttocks support. As for the width, the upper part of the buttock support part is wider than the base part, and the upper protruding part has both left and right sides ahead of the center part in the left-right direction.

この構成によれば、着座者の正しい姿勢を維持することができる。 According to this configuration, the correct posture of the seated person can be maintained.

前記の姿勢保持具によれば、着座者の正しい姿勢を維持することができる。 According to the posture holder, the correct posture of the seated person can be maintained.

第1実施形態の姿勢保持具を示す斜視図。The perspective view which shows the attitude|position holder of 1st Embodiment. 図1の姿勢保持具の正面図。FIG. 2 is a front view of the attitude holder of FIG. 1; 図1の姿勢保持具の平面図。FIG. 2 is a plan view of the attitude holder of FIG. 1; 人体の骨格とあわせて使用状態を示す図2の4-4線の位置における側断面。A side cross section at the position of line 4-4 in FIG. 2 showing the state of use together with the skeleton of the human body. 使用状態を示す臀部支持部の位置における正断面図。Fig. 4 is a front cross-sectional view at the position of the buttock support portion showing the state of use; 使用状態を示す太腿支持部の位置における正断面図。Fig. 4 is a front cross-sectional view at the position of the thigh support showing the state of use; 図2の7-7線断面図。7-7 line sectional drawing of FIG. 2. FIG. 図2の8-8線断面図。8-8 line sectional drawing of FIG. 使用状態を斜め後方から見た図。The figure which looked at the use condition from the diagonal back. 本体の正面図。Front view of the main body. 姿勢保持具の積層構造を示す断面図。Sectional drawing which shows the lamination structure of a posture holder. 図10の12-12線における断面図。FIG. 12 is a cross-sectional view taken along line 12-12 of FIG. 10; 第2実施形態の本体の正面図。The front view of the main body of 2nd Embodiment. 第3実施形態の姿勢保持具を示す斜視図。The perspective view which shows the attitude|position holder of 3rd Embodiment. 図14の姿勢保持具の背面側の斜視図。FIG. 15 is a rear perspective view of the posture holder of FIG. 14; 図14の姿勢保持具の分解斜視図。FIG. 15 is an exploded perspective view of the posture holder of FIG. 14; 図14の姿勢保持具の正面図。FIG. 15 is a front view of the attitude holder of FIG. 14; 図17の18-18線における拡大断面図。FIG. 18 is an enlarged cross-sectional view taken along line 18-18 of FIG. 17;

以下、実施形態の姿勢保持具を図面に従って説明する。
(第1実施形態)
まず、図1~図12に基づいて、第1実施形態について説明する。
Hereinafter, posture holders according to embodiments will be described with reference to the drawings.
(First embodiment)
First, a first embodiment will be described with reference to FIGS. 1 to 12. FIG.

図1~図3に示すように、この実施形態の姿勢保持具21は、全体としてほぼ花弁形状に形成されている。姿勢保持具21は、ポリプロピレン等の硬質合成樹脂製の板材よりなる本体22(図4及び図5参照)を含んで構成されている。ここで、硬質合成樹脂とは、発泡材あるいは発泡されていない充実材であって、自重で変形することなく自立可能な硬度を有し、例えば、ロックウェル硬度でR50~110の値の硬度を有する。 As shown in FIGS. 1 to 3, the posture holder 21 of this embodiment is generally formed in a petal shape as a whole. The posture holder 21 includes a main body 22 (see FIGS. 4 and 5) made of a hard synthetic resin plate such as polypropylene. Here, the hard synthetic resin is a foamed material or a solid material that is not foamed, and has a hardness that allows it to stand on its own without being deformed under its own weight. have.

図4及び図5に示すように、姿勢保持具21の前後方向の中央部には、着座者41の臀部42を支持する凹状湾曲形状の臀部支持部23が形成されている。姿勢保持具21の一端側である前部下側には前方に向かって前部突出部24が形成されている。姿勢保持具21の他端側である後部上側には上方へ向かって上部突出部25が形成されている。図1及び図2に示すように、前記上部突出部25の付け根部の左右の両側部には、上部突出部25の後傾方向への適度な撓曲を可能にするために、一対の第1抉り部30が形成されている。 As shown in FIGS. 4 and 5 , a concave curved buttock support portion 23 that supports the buttocks 42 of the seated person 41 is formed in the central portion of the posture holder 21 in the front-rear direction. A front protruding portion 24 is formed toward the front on the lower front portion, which is one end side of the attitude holder 21 . An upper protruding portion 25 is formed upward on the rear upper side of the posture holder 21 on the other end side. As shown in FIGS. 1 and 2 , a pair of second joints are provided on both left and right sides of the base of the upper projection 25 in order to allow the upper projection 25 to flex appropriately in the backward tilting direction. A gouged portion 30 is formed.

図4及び図5に示すように、前記臀部支持部23は、着座者41の臀部42を前後方向及び左右方向から安定に支持するように、上面が前後方向及び左右方向において曲面状に形成され、全体としてほぼ球状曲面の凹状に形成されている。臀部支持部23の下面も球状曲面形状に形成されている。そして、臀部支持部23及び前部突出部24の下面は連続する球状曲面形状に形成されている。図1及び図3に示すように、前部突出部24の中央部前側には、第2抉り部26が形成されている。図6に示すように、前部突出部24の左右両側には、つまり第2抉り部26の両側には、着座者41の下肢45をほぼ平行に揃えた状態に支持できるように、前方から見て凹状に湾曲した形状の左右一対の太腿支持部27が形成されている。これらの太腿支持部27は、太腿43をその下側から包み込むように支持する。また、太腿支持部27は凹状湾曲形状になっているため、太腿43が左右に開くことを規制する。 As shown in FIGS. 4 and 5, the buttock support portion 23 has an upper surface curved in the front-rear direction and the left-right direction so as to stably support the buttocks 42 of the seated person 41 in the front-rear direction and the left-right direction. , is formed in a generally spherically curved concave shape as a whole. The lower surface of the buttock support portion 23 is also formed in a spherically curved shape. The lower surfaces of the buttock support portion 23 and the front projecting portion 24 are formed in a continuous spherical curved surface shape. As shown in FIGS. 1 and 3 , a second gouged portion 26 is formed on the front side of the central portion of the front projecting portion 24 . As shown in FIG. 6, on both the left and right sides of the front projecting portion 24, that is, on both sides of the second gouged portion 26, the lower legs 45 of the seated person 41 are supported from the front in a substantially parallel state. A pair of left and right thigh support portions 27 having a concavely curved shape when viewed is formed. These thigh support portions 27 support the thighs 43 so as to wrap them from below. Further, since the thigh support portion 27 has a concave curved shape, it restricts the thighs 43 from opening to the left and right.

図2,図7及び図8に示すように、前記上部突出部25には、上部281が凸状湾曲形状をなすとともに、下部282が凹状湾曲形状をなす左右一対の腰部支持部28が形成されている。各腰部支持部28には凸状湾曲形状をなす上部281が内側前方を指向するように斜め前方に向かって膨出形成されている。そのため、図4及び図5に示すように、着座者41の腰部44の骨盤151部分の両側を、背骨152を避けて後方から内側前方に向かって押すことができるようになっている。一対の腰部支持部28の間には、第3抉り部29が形成されている。 As shown in FIGS. 2, 7 and 8, the upper protruding portion 25 is formed with a pair of left and right waist support portions 28 having an upper portion 281 having a convex curved shape and a lower portion 282 having a concave curved shape. ing. Each waist support portion 28 has an upper portion 281 having a convex curved shape, which bulges obliquely forward so as to point inward and forward. Therefore, as shown in FIGS. 4 and 5, both sides of the pelvis 151 of the waist 44 of the seated person 41 can be pushed from the rear toward the inside and forward while avoiding the spine 152 . A third gouged portion 29 is formed between the pair of waist support portions 28 .

図12に示すように、第1抉り部30の奥部における本体22の縁部301の肉厚t1は、本体22の他の部分の肉厚t2よりも厚く形成されている。すなわち、腰部支持部28の撓曲時に、本体22の第1抉り部30の奥部の縁部301に集中応力が作用する。そして、この応力により縁部301及びその近傍部分にクラック等の発生のおそれがある。この場合、このクラック等は肉厚t1の増加によって抑止されるようになっている。 As shown in FIG. 12, the thickness t1 of the edge portion 301 of the main body 22 at the deep portion of the first gouged portion 30 is formed thicker than the thickness t2 of the other portion of the main body 22 . That is, when the waist support portion 28 is bent, concentrated stress acts on the deep edge portion 301 of the first gouged portion 30 of the main body 22 . This stress may cause cracks or the like to occur in the edge portion 301 and its vicinity. In this case, the cracks and the like are suppressed by increasing the thickness t1.

図2及び図7に示すように、姿勢保持具21の臀部支持部23の下面両側には、一対の脚31が突設されている。そして、姿勢保持具21を椅子100の座部等の設置面上に載置したとき、この脚31を介して姿勢保持具21が設置面上において滑りをあまり生じることなく、安定状態に支持されるようになっている。特に、この脚31は姿勢保持具21の左右方向の動きを規制し、着座者41の上体が左右に傾斜しにくいようにする。 As shown in FIGS. 2 and 7 , a pair of legs 31 protrude from both sides of the lower surface of the buttock support portion 23 of the posture holder 21 . When the posture holder 21 is placed on the installation surface such as the seat of the chair 100, the posture holder 21 is supported in a stable state via the legs 31 without causing much slippage on the installation surface. It has become so. In particular, the legs 31 restrict the movement of the posture holder 21 in the horizontal direction and prevent the upper body of the seated person 41 from tilting in the horizontal direction.

図11に示すように、前記本体22の着座側の面には、連泡性の発泡ポリウレタン等よりなるクッション材32が貼着されている。本体22及びクッション材32を含む姿勢保持具21全体には、外装シート34が被覆されている。この外装シート34は、外側の織布あるいは編布よりなる表皮シート341と、その表皮シート341の裏面にラミネートされた連泡性のEVA(エチレン・酢酸ビニル共重合樹脂)等の弾性材よりなる裏シート342とによって構成されている。 As shown in FIG. 11, a cushioning material 32 made of open-cell foamed polyurethane or the like is adhered to the seat side surface of the main body 22 . The entire posture holder 21 including the main body 22 and the cushion material 32 is covered with an exterior sheet 34 . The exterior sheet 34 is composed of an outer skin sheet 341 made of woven or knitted fabric, and an elastic material such as open-cell EVA (ethylene-vinyl acetate copolymer resin) laminated on the back surface of the skin sheet 341. and a back sheet 342 .

図10に示すように、本体22における上部突出部25の下部には複数の第1孔33が相互間隔をおいた位置において貫設されている。このようにすれば、第1孔33により発汗にともなう湿気を逃がすことができる。また、クッション材32の成形の際に、図11に示す通り、第1孔33内にクッション材32の一部が進入する。クッション材32の一部が、第1孔33内に進入することで、本体22の表面からのクッション材32の剥離や、その表面上におけるクッション材32の移動が抑止される。 As shown in FIG. 10 , a plurality of first holes 33 are formed through the lower portion of the upper projecting portion 25 of the main body 22 at positions spaced apart from each other. In this way, the first holes 33 allow moisture due to perspiration to escape. Further, when the cushion material 32 is molded, part of the cushion material 32 enters the first hole 33 as shown in FIG. A portion of the cushioning material 32 enters the first hole 33, thereby preventing the cushioning material 32 from peeling off from the surface of the main body 22 and the movement of the cushioning material 32 on the surface.

本体22の全体には、複数の小さな第2孔221が形成されている。この第2孔221は前記第1孔33とともに、着座者の発汗にともなう湿気を逃がすためのものである。この第2孔221内にもクッション材32の成形の際にその一部が進入される。 A plurality of small second holes 221 are formed throughout the main body 22 . The second hole 221, together with the first hole 33, is for letting out moisture caused by perspiration of the seated person. Part of the second hole 221 also enters during the molding of the cushion material 32 .

次に、前記のように構成された姿勢保持具21の作用を説明する。
例えばオフィスにおいて、椅子に着座してデスクワークを行う際に、この姿勢保持具21を使用する場合には、姿勢保持具21を椅子の座部上に載置する。この状態で、図4~図6及び図9に示すように、着座者41が姿勢保持具21上に着座すると、臀部支持部23から前部突出部24に跨る位置の下面が球状曲面形状に形成されているため、着座者41の体重により姿勢保持具21がわずかに前傾状態になり、この状態で着座者41の臀部42が球面凹状の臀部支持部23上に支持される。このとき、臀部支持部23は左右の脚31によって左右方向への傾斜が規制されるため、左右方向においては、臀部支持部23は比較的安定している。
Next, the operation of the posture holder 21 configured as described above will be described.
For example, in an office, when the posture holder 21 is used when sitting on a chair for desk work, the posture holder 21 is placed on the seat of the chair. In this state, as shown in FIGS. 4 to 6 and 9, when the seated person 41 sits on the posture holder 21, the lower surface of the position extending from the buttocks support portion 23 to the front projecting portion 24 assumes a spherically curved shape. As a result, the posture holder 21 is slightly tilted forward by the weight of the seated person 41 , and in this state the buttocks 42 of the seated person 41 are supported on the spherically concave buttocks support portion 23 . At this time, the buttock support portion 23 is restricted from tilting in the left and right direction by the left and right legs 31, so the buttock support portion 23 is relatively stable in the left and right direction.

このように、姿勢保持具21のわずかな前傾とともに着座者41の臀部42もわずかに前傾することで、着座者41の骨盤151が立った状態となり、その状態で着座者41の臀部42が臀部支持部23上に支持されることとなる。なお、骨盤151が立つことで背筋(せすじ)が自然に伸びる状態になるので、姿勢保持具21が前傾しても、着座者の上体が前傾することはない。また、着座者41の両太腿43が前部突出部24上の凹状湾曲形状の太腿支持部27によりほぼ平行状態に支持される。従って、着座者の下肢45が揃えた状態でサポートされる。 In this way, the buttocks 42 of the seated person 41 are tilted slightly forward together with the slight forward tilting of the posture holder 21, so that the pelvis 151 of the seated person 41 is in a standing state. will be supported on the buttock support portion 23 . In addition, since the back muscles are naturally stretched by standing the pelvis 151, the upper body of the seated person does not incline forward even if the posture holder 21 inclines forward. Further, both thighs 43 of the seated person 41 are supported in a substantially parallel state by the concavely curved thigh support portions 27 on the front projecting portion 24 . Therefore, the lower legs 45 of the seated person are supported in an aligned state.

さらに、姿勢保持具21の前傾により、上部突出部25の一対の腰部支持部28も前方に移動することで、図3及び図4に示すように、着座者41の腰部44における腸骨を含む骨盤151部分が左右から包み込まれるように支持される。このとき、図8に示すように、腰部44の両側が上部突出部25の一対の腰部支持部28における凸状湾曲形状の上部281により、後方から内側前方に向かって押されて支持される。これによって、着座者41の背筋が無理なく自然に伸びて、良好な座り心地を得た状態で姿勢が正しい状態にサポートされる。従って、着座者41は、ほとんど疲労を感じることなく、正しい姿勢を長時間維持できる。 Furthermore, by tilting the posture holder 21 forward, the pair of waist support portions 28 of the upper protruding portion 25 also moves forward, so that the ilium of the waist portion 44 of the seated person 41 is moved forward as shown in FIGS. The pelvis 151 including the pelvis is supported so as to be wrapped from the left and right. At this time, as shown in FIG. 8, both sides of the waist portion 44 are supported by being pushed from the rear toward the inside and forward by the convex curved upper portions 281 of the pair of waist support portions 28 of the upper projecting portion 25 . As a result, the back muscles of the seated person 41 can be stretched naturally, and the seated person 41 can be supported in a correct posture while being comfortable to sit. Accordingly, the seated person 41 can maintain a correct posture for a long time without feeling fatigue.

この場合、姿勢保持具21の上部突出部25の付け根部の両側部に、一対の第1抉り部30が形成されている。このため、着座者41が着座状態で、後方にもたれかかった場合、上部突出部25が第1抉り部30によって幅狭にされた部分において後傾方向へ適度に撓曲されて、着座者41の動きが許容される。また、着座者41が太り気味の場合や大きな体形の場合には、その体形による窮屈さが第1抉り部30によって軽減されて、快適な座り心地を確保することができる。つまり、第1抉り部30によって、上部突出部25の付け根部の両側部、すなわち臀部支持部23と上部突出部25との間の両側部が開放されているため、着座者の窮屈感が軽減される。 In this case, a pair of first gouged portions 30 are formed on both sides of the root portion of the upper projecting portion 25 of the attitude holder 21 . Therefore, when the seated person 41 is in a seated state and leans backward, the portion of the upper projecting portion 25 narrowed by the first gouged portion 30 is appropriately bent in the backward tilting direction. movement is allowed. In addition, when the seated person 41 is a little overweight or has a large body shape, the first gouged portion 30 reduces the tightness due to the body shape, thereby ensuring comfortable sitting comfort. That is, both sides of the base of the upper projecting portion 25, that is, both sides between the buttock support portion 23 and the upper projecting portion 25 are opened by the first gouged portion 30, so that the seated person feels less cramped. be done.

なお、この姿勢保持具21は椅子の座部上で使用されるだけではなく、床面上に設置して使用することもできる。すなわち、本体22が硬質材で構成されているため、姿勢を保持可能な座椅子として使用することが可能である。 The posture holder 21 can be used not only on the seat of the chair, but also by placing it on the floor. That is, since the main body 22 is made of a hard material, it can be used as a legless chair capable of maintaining a posture.

前記姿勢保持具21は、例えば、前部突出部24を設けないように構成することも可能である。この場合、例えば、図3に1点鎖線101で示す位置が姿勢保持具21の前端になる。このように構成した場合、例えば、床に置いて座椅子として使用する場合には、太腿支持部27により下肢45が規制されることが無くなるので、胡坐等任意の姿勢で座りやすくなる等、着座者41の下肢45の自由度が増える。ただし、太腿支持部27による下肢45の支えが無くなるので、太腿43を水平に保つ効果は若干薄れるが、床上であるため、ほとんど問題はない。そして、左右方向において脚31が形成されている臀部支持部23により、臀部42をほぼ水平に保つことが可能となる。この為、太腿支持部27を設けない場合であっても、臀部支持部23によって臀部42が前後方向及び左右方向において安定に、かつ自然に無理なく支持され、腰部44の両側が腰部支持部28における凸状湾曲形状の上部281により、後方から内側前方に向かって押されて支持されるため、着座者41の上体を正しい姿勢の状態でサポートすることができる。 The attitude holder 21 can be configured without the front projecting portion 24, for example. In this case, for example, the position indicated by the dashed line 101 in FIG. 3 is the front end of the attitude holder 21 . When configured in this manner, for example, when the chair is placed on the floor and used as a legless chair, the lower legs 45 are not restricted by the thigh support 27, so that it is easy to sit in any posture such as crossed legs. , the degree of freedom of the lower limbs 45 of the seated person 41 is increased. However, since the lower leg 45 is not supported by the thigh support portion 27, the effect of keeping the thigh 43 horizontal is somewhat weakened, but since it is on the floor, there is almost no problem. The buttock support portion 23 formed with the legs 31 in the left-right direction makes it possible to keep the buttocks 42 substantially horizontal. Therefore, even if the thigh support part 27 is not provided, the buttocks 42 are stably and naturally supported in the front-back direction and the left-right direction by the buttocks support part 23, and both sides of the waist part 44 are supported by the waist support part. Since the upper part 281 of the convex curved shape in 28 pushes and supports from the rear toward the inner front, the upper body of the seated person 41 can be supported in a correct posture.

上記した実施形態によれば、以下のような効果を得ることができる。
(1)上記した実施形態によれば、着座者41の臀部42を支持する臀部支持部23が前後方向及び左右方向において凹状湾曲形状に形成されている。従って、臀部支持部23によって臀部42を前後方向及び左右方向において安定に、かつ自然に無理なく支持することができるだけではなく、臀部42を支持する面積が広くなって、体圧が分散される。このため、着座者41は疲労や不快さをあまり感じることなく着座状態を維持できる。
According to the embodiment described above, the following effects can be obtained.
(1) According to the above-described embodiment, the buttock support portion 23 that supports the buttocks 42 of the seated person 41 is formed in a concave curved shape in the front-rear direction and the left-right direction. Therefore, not only can the buttocks 42 be stably and naturally supported by the buttocks support part 23 in the front-rear direction and the left-right direction, but also the area supporting the buttocks 42 can be widened to disperse the body pressure. Therefore, the seated person 41 can maintain the seated state without feeling much fatigue or discomfort.

(2)前部突出部24の凹状湾曲形状をなす左右2箇所の太腿支持部27により、着座者41の両太腿43が下側から広い面積で安定に支持されて、下肢45が自然に揃えられる。また、太腿支持部27は凹状湾曲形状になっている為に、両太腿43が左右に開くことを規制する。従って、前記と同様に、体圧が分散されて、疲労等を感じることなく着座状態を維持できるとともに、着座者41の骨盤151が傾くことなく、骨盤151を水平に保つことが可能になる。このため、図5に示すように、背骨152を左右方向において自然に直立させることができる。 (2) Both thighs 43 of the seated person 41 are stably supported from below over a wide area by the left and right thigh support portions 27 of the front projecting portion 24 having a concavely curved shape, and the lower limbs 45 are naturally supported. can be aligned. Further, since the thigh support portion 27 has a concave curved shape, it restricts the thighs 43 from opening to the left and right. Therefore, as in the above case, the body pressure is dispersed, the seated state can be maintained without feeling fatigue, etc., and the pelvis 151 of the seated person 41 can be kept horizontal without tilting. Therefore, as shown in FIG. 5, the spine 152 can be naturally erected in the horizontal direction.

(3)姿勢保持具21の本体22が硬質の板材によって形成されている。このため、姿勢保持具21全体をクッション材等の厚手の弾性材により形成した従来構成とは異なって、太腿43及び腰部44を腰部支持部28において、前記厚手の弾性材のような大きな弾性変形を生じることなくしっかりとサポートすることができて、姿勢の保持効果を高めることができる。仮に、着座者41が姿勢を崩した場合、姿勢保持具21はほとんど変形しないため、着座者41は直ちに正しい姿勢に戻ることができる。そして、姿勢が正しく保持されることにより、姿勢を維持する筋肉が使用されて、その筋肉を鍛えることができ、その結果、姿勢保持具21を使用しない場合も自然に正しい姿勢を保つことができる。また、姿勢保持具全体をクッション材で形成した前記従来構成では、姿勢保持具を椅子に載せた場合、その厚みのために座面が高くなって使用しにくいものとなる。これに対し、本実施形態では本体22が硬質樹脂で形成されているため、従来構成とは異なり、姿勢保持具21の厚みを薄くできて、姿勢保持具21を椅子100上に載せて用いることにおいて支障が生じることはほとんどない。 (3) The main body 22 of the posture holder 21 is made of hard plate material. For this reason, unlike the conventional configuration in which the entire posture holder 21 is made of a thick elastic material such as a cushion material, the thighs 43 and the waist 44 are supported by the waist support section 28 with a large elasticity such as the thick elastic material. Firm support can be provided without causing deformation, and the posture retention effect can be enhanced. If the seated person 41 loses his or her posture, the posture holder 21 hardly deforms, so the seated person 41 can immediately return to the correct posture. By correctly holding the posture, the muscles for maintaining the posture are used, and the muscles can be trained. As a result, the correct posture can be naturally maintained even when the posture holder 21 is not used. . In addition, in the conventional configuration in which the entire posture holder is made of cushioning material, when the posture holder is placed on a chair, the thickness of the chair makes the seat height high, making it difficult to use. On the other hand, in the present embodiment, the main body 22 is made of hard resin, so unlike the conventional configuration, the posture holder 21 can be thinned, and the posture holder 21 can be placed on the chair 100 and used. There is almost no trouble in

(4)臀部支持部23から前部突出部24にかけてその下面が前後方向において大きな曲率半径の球状曲面状をなしているため、着座者41の着座状態において、姿勢保持具21が前傾状態になる。従って、着座者41の骨盤151が立った状態でサポートされ、着座者41が、背筋が自然に伸びた姿勢となる。その着座者41は、その状態で上部突出部25の腰部支持部28により腰部44における背骨152の両側において、腸骨を含む骨盤151の部分が左右両側の斜め後ろから前方に向かって押されるように支持されて、腰部44が包み込まれるようにサポートされる。 (4) Since the lower surface from the buttock support portion 23 to the front protruding portion 24 has a spherical curved surface shape with a large curvature radius in the front-rear direction, the posture holder 21 tilts forward when the seated person 41 is seated. Become. Therefore, the pelvis 151 of the seated person 41 is supported in a standing state, and the seated person 41 assumes a posture in which the back muscles are naturally stretched. In this state, the seated person 41 is pushed diagonally forward from the left and right sides of the pelvis 151 including the ilium on both sides of the spine 152 in the waist 44 by the lumbar support portions 28 of the upper projecting portion 25 . is supported so that the waist 44 is wrapped.

このため、着座者41の腰椎の部分も前方に向かって押されて、図4及び図5に示すように、着座者41は、臀部42と両太腿43が安定支持されることも相俟って、上体、すなわち背骨152が左右に傾くことなく、正しい姿勢となるように自然に理想的なSカーブ形状となって起立される。しかも、脚31によって姿勢保持具21の左右方向の安定性を得ることができて、上体の傾きを抑制でき、さらに正しい姿勢を得ることができる。従って、仮に着座者41の背骨152に左右方向への歪みがあっても、あるいは猫背気味であっても、体が正しい状態でサポートされて、着座者41の上体が左右中立状態の適正な姿勢で自然に伸びる。 Therefore, the lumbar spine of the seated person 41 is also pushed forward, and as shown in FIGS. 4 and 5, the buttocks 42 and both thighs 43 of the seated person 41 are stably supported. Therefore, the upper body, that is, the spine 152 does not incline to the left or right, and the user stands up naturally in an ideal S-curve shape so as to assume a correct posture. In addition, the leg 31 provides lateral stability of the posture holder 21, suppresses the inclination of the upper body, and allows a correct posture to be obtained. Therefore, even if the spine 152 of the seated person 41 is distorted in the left-right direction, or even if the seated person 41 has a slightly stooped back, the body is supported in a correct state, and the upper body of the seated person 41 is in a proper left-right neutral state. Posture stretches naturally.

このため、着座者41の腰への負担も軽減できて、着座者41は、リラックスしながら背筋が伸びて正しい姿勢を無理なく維持でき、長時間着座していても、腰部44や下肢45に対する負担を少なくできて、疲労感を少なくすることができる。ちなみに、姿勢保持具21を使用することなく、着座者41の背骨152や、腰椎を直接前方へ押した場合も背筋を伸ばすことは可能であるが、このような場合、着座者41は痛みや不快さを感じるため、長時間の着座維持は難しい。なお、着座者41が、腰部44が前方に湾曲する反り腰であっても、腰部44を腰部支持部28に支持することにより、骨盤151や背骨152が包み込まれるようにサポートされるため、腰部44に対する負担を軽減できて、リラックスすることができる。 Therefore, the burden on the waist of the seated person 41 can be reduced, and the seated person 41 can easily maintain a correct posture by stretching the spine while relaxing, and even if the seated person 41 is seated for a long time, the waist 44 and the lower limbs 45 will not be affected. The burden can be reduced, and the feeling of fatigue can be reduced. Incidentally, the spine 152 of the seated person 41 and the lumbar spine can be directly pushed forward without using the posture retainer 21, but the back muscles can be stretched. It is difficult to maintain a seated position for a long time due to discomfort. Even if the seated person 41 has a curved waist in which the waist 44 curves forward, the waist 44 is supported by the waist support portion 28 so that the pelvis 151 and the spine 152 are supported so as to be wrapped. The burden on 44 can be reduced and you can relax.

(5)臀部支持部23及び前部突出部24の下面が左右方向においても大きな曲率半径の球状曲面形状に形成されているため、姿勢保持具21の左右方向へのある程度の傾動が許容される。従って、着座者41は左右に上体を軽く傾けることができて、窮屈さを避けることができる。 (5) Since the lower surfaces of the buttock support portion 23 and the front protruding portion 24 are formed in a spherical curved surface shape with a large radius of curvature even in the horizontal direction, the posture holder 21 is allowed to tilt in the horizontal direction to some extent. . Therefore, the seated person 41 can lightly incline the upper body to the left and right, and can avoid crampedness.

(6)姿勢保持具21における臀部支持部23の下面の両側に脚31が突設されている。このため、姿勢保持具21を例えば椅子100の座部上において滑りを生じたり、左右方向に過度に傾いたりすることを抑制して、安定状態で載置することができる。 (6) Legs 31 protrude from both sides of the lower surface of the buttock support portion 23 of the posture holder 21 . Therefore, the posture holder 21 can be placed in a stable state, for example, by preventing it from slipping on the seat of the chair 100 or excessively tilting in the left-right direction.

(7)上部突出部25の付け根部の両側部に第1抉り部30が形成されている。このため、姿勢保持具21の本体22が硬質の合成樹脂によって形成されていても、着座者41が臀部支持部23に着座した状態で、仰け反ったりして上部突出部25に対して後傾方向への荷重をかけた場合、上部突出部25を撓曲させることができる。このため、着座者41の正しい姿勢維持と、疲れにくさとに貢献できる。すなわち、姿勢保持具21の本体22が硬質の合成樹脂によって形成されているため、姿勢保持具21が剛性と硬さとを備え、形状変化が小さいものの、所要部分の変形を確保できる。従って、姿勢保持具21の本来の機能を有効に発揮するとともに、無理なくリラックスした姿勢保持に貢献できる。 (7) The first gouged portion 30 is formed on both sides of the root portion of the upper projecting portion 25 . Therefore, even if the main body 22 of the posture holder 21 is made of a hard synthetic resin, the seated person 41 who is seated on the buttock support portion 23 may bend backward and lean backward with respect to the upper projecting portion 25 . When a load is applied to the upper protrusion 25, the upper protrusion 25 can be bent. Therefore, it is possible to contribute to maintaining the correct posture of the seated person 41 and preventing fatigue. That is, since the main body 22 of the posture holder 21 is made of a hard synthetic resin, the posture holder 21 is rigid and hard, and although the shape change is small, deformation of required portions can be ensured. Therefore, the original function of the posture holder 21 can be effectively exhibited, and at the same time, it is possible to contribute to maintaining a relaxed posture without difficulty.

(8)そして、これに加えて、臀部支持部23が凹状の球状曲面形状に形成されているため、臀部支持部23から上方に連続する上部突出部25の付け根部も臀部支持部23と同様な凹状の球状曲面形状に形成されている。従って、本実施形態と異なり、第1抉り部30が形成されていない場合にあっては、上部突出部25は、硬く、後方へ撓曲しにくい形状となるが、本実施形態では前記のように、上部突出部25の付け根部の両側部に第1抉り部30が形成されているため、撓曲しにくさが解消されて、上部突出部25は着座者41の体の動きに適切に対応できる。 (8) In addition to this, since the buttocks support portion 23 is formed in a concave spherical curved surface shape, the base of the upper projecting portion 25 continuing upward from the buttocks support portion 23 is the same as the buttocks support portion 23. It is formed in a concave spherical curved surface shape. Therefore, unlike the present embodiment, in the case where the first gouged portion 30 is not formed, the upper protruding portion 25 is hard and has a shape that is difficult to bend backward. Furthermore, since the first gouged portions 30 are formed on both sides of the base of the upper projecting portion 25, the difficulty of bending is eliminated, and the upper projecting portion 25 is appropriately adapted to the movement of the body of the seated person 41. I can handle it.

(9)上部突出部25の付け根部の両側に第1抉り部30が形成されて、同部分が開放されているため、着座者41が窮屈感を感じることを抑えることができる。これに対し、前記抉り部30が形成されていない場合は、着座者41は体形が大きい場合、臀部がこの部位に当たることもあり、このような場合は窮屈感を覚えることになる。 (9) Since the first gouged portions 30 are formed on both sides of the base of the upper projecting portion 25 and the same portions are open, it is possible to prevent the seated person 41 from feeling cramped. On the other hand, if the gouged portion 30 is not formed, if the seated person 41 has a large body shape, the buttocks may come into contact with this portion, and in such a case, the person feels cramped.

(10)第1~第3抉り部30,26,29の形成によって姿勢保持具21全体の軽量化を図ることができる。
(11)前記のように、腰部支持部28の間に第3抉り部29が形成されている。このため、着座者41が後方へ仰け反るようにした場合や、後ろに大きく凭れかかった場合に、着座者41の背骨の部分が上部突出部25に当たることを回避できる。従って、このような場合における不快さを避けることができる。
(10) By forming the first to third gouged portions 30, 26, 29, the overall weight of the posture holder 21 can be reduced.
(11) As described above, the third gouged portion 29 is formed between the waist support portions 28 . Therefore, when the seated person 41 bends backward or leans back greatly, the spine of the seated person 41 can be prevented from coming into contact with the upper projecting portion 25 . Discomfort in such cases can thus be avoided.

(12)第1抉り部30,第2抉り部26,第3抉り部29によって4箇所に抉り部が形成されている。このため、姿勢保持具21全体が花弁形状を呈し、デザイン性に優れたものとすることができる。 (12) The first gouged portion 30, the second gouged portion 26, and the third gouged portion 29 form four gouged portions. For this reason, the posture holder 21 as a whole exhibits a petal shape, and can be excellent in design.

(13)前記第1抉り部30の縁部301が他の部分より肉厚になるように形成されている。このため、上部突出部25の傾動による変形により、第1抉り部30に大きな応力が加わった場合でも、第1抉り部30の縁部301が破損するおそれを抑制することができる。 (13) The edge portion 301 of the first gouged portion 30 is formed to be thicker than the other portions. Therefore, even when a large stress is applied to the first gouged portion 30 due to deformation due to tilting of the upper protruding portion 25, the risk of damage to the edge portion 301 of the first gouged portion 30 can be suppressed.

(14)前記本体22の着座側の面にクッション材32が設けられている。このため、クッション材32の弾性作用及び緩衝作用により座り心地を良好に保つことができる。
(15)全体が外装シート34により被覆されている。このため、姿勢保持具21全体の外観を美しく保つことができる。
(14) A cushioning member 32 is provided on the seating side surface of the main body 22 . Therefore, it is possible to maintain good sitting comfort due to the elastic action and the cushioning action of the cushion material 32 .
(15) The whole is covered with the exterior sheet 34 . Therefore, the appearance of the posture holder 21 as a whole can be kept beautiful.

(第2実施形態)
次に、本発明の第2実施形態を図13に基づいて説明する。なお、この第2実施形態以降の実施形態及び変更例においては、第1実施形態と異なる部分を中心に説明する。
(Second embodiment)
Next, a second embodiment of the invention will be described with reference to FIG. It should be noted that in the second and subsequent embodiments and modifications, the description will focus on the portions that are different from the first embodiment.

第2実施形態では、図13に示すように、第1実施形態のような本体22の第1孔33及び第2孔221が設けられていない。従って、第2実施形態においては、本体22の成形が容易になる。 In the second embodiment, as shown in FIG. 13, the first hole 33 and the second hole 221 of the main body 22 as in the first embodiment are not provided. Accordingly, molding of the main body 22 is facilitated in the second embodiment.

(第3実施形態)
次に、本発明の第3実施形態を図14~図18に基づいて説明する。
本実施形態においては、前記第1実施形態と比較して、第2抉り部26及び第3抉り部29の抉り度合いが浅く形成されている。
(Third embodiment)
Next, a third embodiment of the invention will be described with reference to FIGS. 14 to 18. FIG.
In this embodiment, the degree of gouging of the second gouged portion 26 and the third gouged portion 29 is shallower than that of the first embodiment.

また、ポリプロピレン等の硬質材よりなる本体22上の着座面側にはEVAよりなる単層の外装シート51がエラストマ系の接着剤を用いて接着されている。図16及び図18に示すように、外装シート51の周縁部には折り返し511が形成され、この折り返し511が本体22の周縁部に嵌められた状態で外装シート51が本体22の着座側の面に接着されている。本体22の背面及び下面は露出されている。外装シート51は柔軟性と弾力性とを有するとともに、通気性を有する多孔質材で構成されている。 A single-layer exterior sheet 51 made of EVA is adhered to the seating surface side of the main body 22 made of a hard material such as polypropylene using an elastomer adhesive. As shown in FIGS. 16 and 18 , a fold 511 is formed on the peripheral edge of the exterior sheet 51 , and the exterior sheet 51 is fitted to the seating side surface of the main body 22 with the folded edge 511 fitted to the peripheral edge of the main body 22 . is glued to The back and bottom surfaces of body 22 are exposed. The exterior sheet 51 is made of a porous material having flexibility, elasticity, and air permeability.

上部突出部25には複数の孔52が形成されている。各孔52は図18に示すように、本体22の孔521と外装シート51の孔522とにより構成され、外装シート51の孔521が本体22の孔521より大きく形成されている。このため、外装シート51の孔522の内周縁が本体22の孔521の内周縁より孔中心側に突出して、着座者41に対して本体22の孔521の内周縁が当たらないようになっている。 A plurality of holes 52 are formed in the upper projecting portion 25 . As shown in FIG. 18, each hole 52 is composed of a hole 521 in the main body 22 and a hole 522 in the outer sheet 51 , and the hole 521 in the outer sheet 51 is formed larger than the hole 521 in the main body 22 . Therefore, the inner peripheral edge of the hole 522 of the exterior sheet 51 protrudes from the inner peripheral edge of the hole 521 of the main body 22 toward the center of the hole, so that the inner peripheral edge of the hole 521 of the main body 22 does not come into contact with the seated person 41 . there is

図15に示すように、前部突出部25の底面及び脚31の下端には摩擦係数の高い材質のものよりなる複数の滑り止め53が貼着されている。
第3実施形態においては、以下の効果がある。
As shown in FIG. 15, a plurality of slip stoppers 53 made of a material having a high coefficient of friction are adhered to the bottom surface of the front projecting portion 25 and the lower ends of the legs 31 .
The third embodiment has the following effects.

(16)姿勢保持具21が本体22の着座面側に単層の外装シート51を被せて構成されているため、部品点数が少なく、構成が簡単である。また、本体22の背面及び下面が露出されているため、外装シート51は小さなものでよく、しかも、外装シート51を本体22に被せることは容易である。従って、姿勢保持具21を安価に製作できる。 (16) Since the posture holder 21 is configured by covering the seating surface side of the main body 22 with the single-layer outer sheet 51, the number of parts is small and the configuration is simple. In addition, since the back and bottom surfaces of the main body 22 are exposed, the outer sheet 51 can be small, and the main body 22 can be easily covered with the outer sheet 51 . Therefore, the attitude holder 21 can be manufactured at low cost.

(変更例)
なお、この実施形態は、次のように変更して具体化することも可能である。
・姿勢保持具21の臀部支持部23を球状曲面形状以外の形状、例えば平面や、円筒状凹形状、凹状湾曲形状等にすること。この場合、臀部支持部23により、臀部42が前後方向及び左右方向から安定に支持される効果は薄れる。しかし、左右方向については、太腿43が凹状湾曲形状の太腿支持部27により規制を受けることになるため、その影響を受けて、臀部42も安定することになる。よって、着座者41は、骨盤151を水平に保った状態で、腰部44の両側が腰部支持部28により、後方から内側前方に向かって押されて支持される。以上のように、姿勢保持具21の臀部支持部23を球状曲面形状以外の形状に形成した場合であっても、着座者41の姿勢を正しい状態でサポートすることが可能である。
(Change example)
It should be noted that this embodiment can also be embodied by changing as follows.
- The buttocks support part 23 of the posture holder 21 can be formed in a shape other than a spherically curved shape, such as a flat surface, a cylindrical concave shape, a concave curved shape, or the like. In this case, the effect of stably supporting the buttocks 42 from the front-rear direction and the left-right direction by the buttocks support portion 23 is reduced. However, in the lateral direction, the thighs 43 are restricted by the concavely curved thigh support portions 27, and the buttocks 42 are also stabilized under the influence thereof. Therefore, while the pelvis 151 of the seated person 41 is kept horizontal, both sides of the lumbar region 44 are supported by the lumbar support portions 28 by being pushed from the rear toward the inside and forward. As described above, even if the buttock support portion 23 of the posture holder 21 is formed in a shape other than a spherical curved surface shape, it is possible to support the posture of the seated person 41 in a correct state.

・クッション材32を本体22の着座側とその反対側との両方の面に設けること。
・クッション材32を省略すること。
・外装シート34を省略すること。
- The cushion material 32 is provided on both the seating side and the opposite side of the main body 22 .
- The cushion material 32 should be omitted.
- The exterior sheet 34 is omitted.

・クッション材32及び外装シート34の双方を省略すること。つまり、姿勢保持具21を本体22のみを含んで構成すること。
・姿勢保持具21の下面の脚31を省略し、その下面をフラットにすること。
- Both the cushion material 32 and the outer sheet 34 are omitted. In other words, the posture holder 21 should be configured to include only the main body 22 .
- The leg 31 on the lower surface of the posture holder 21 is omitted, and the lower surface is made flat.

・腰部支持部28の付け根部の第1抉り部30を左右の一側のみに設けること。
・第1抉り部30以外の抉り部を形成しないようにすること。第3抉り部29が形成されない場合、一対の腰部支持部28が連続して外観上ひとつになるが、腰部支持部28が前方に突出しているため、中央の連続部分が背骨152やその両側に当たることなく、腰部44の両側を押さえることができるため、実質的には一対存在することになる。
- The first gouged portion 30 at the base of the waist support portion 28 is provided only on one of the left and right sides.
- Do not form a hollowed portion other than the first hollowed portion 30 . When the third gouged portion 29 is not formed, the pair of lumbar support portions 28 are continuous and become one in appearance, but since the lumbar support portion 28 protrudes forward, the central continuous portion hits the spine 152 and both sides thereof. Since both sides of the waist portion 44 can be pressed without being pulled, there are actually a pair of them.

・臀部支持部23を前後方向または左右方向の一方向において直線状に形成すること。
・本体22を樹脂をガラス繊維によって強化したFRP(ガラス繊維強化樹脂)により構成すること。
- Forming the buttocks support part 23 linearly in one direction of the front-rear direction or the left-right direction.
- The main body 22 is composed of FRP (glass fiber reinforced resin) in which resin is reinforced with glass fiber.

21…姿勢保持具、22…本体、23…臀部支持部、24…前部突出部、25…上部突出部、26…第2抉り部、27…太腿支持部、28…腰部支持部、29…第3抉り部、30…第1抉り部、301…縁部、31…脚、32…クッション材、34…外装シート、41…着座者、42…臀部、43…太腿、44…腰部、45…下肢、52…背骨、t1…縁部の肉厚、t2…他の部分の肉厚。 21 Posture holder 22 Main body 23 Buttock support 24 Front protrusion 25 Upper protrusion 26 Second gouged section 27 Thigh support 28 Lumbar support 29 ... 3rd gouged portion, 30 ... first gouged portion, 301 ... edge, 31 ... leg, 32 ... cushion material, 34 ... exterior sheet, 41 ... seated person, 42 ... buttocks, 43 ... thighs, 44 ... waist, 45 -- lower leg, 52 -- spine, t1 -- thickness of edge, t2 -- thickness of other parts.

Claims (4)

着座者の臀部を支持可能な臀部支持部と前記臀部支持部の上方に位置する上部突出部とを備え、
前記上部突出部の左右の幅は、前記臀部支持部との付け根である付け根部より同付け根部の上方が広く、
前記上部突出部は左右方向の中央部より左右両側部が前方に位置しており、
前記臀部支持部の下面は前後方向において下向きに凸となる曲面状に形成されている姿勢保持具。
A buttocks support that can support the buttocks of a seated person and an upper protrusion positioned above the buttocks support,
The width of the upper protruding portion in the left and right direction is wider above the base portion than the base portion which is the base of the buttock support portion,
Both left and right sides of the upper protruding portion are positioned forward of the central portion in the left-right direction,
The lower surface of the buttocks support portion is a posture retainer formed in a curved surface that protrudes downward in the front-rear direction.
着座者の臀部を支持可能な臀部支持部と前記臀部支持部の上方に位置する上部突出部とを備え、
前記上部突出部の左右の幅は、前記臀部支持部との付け根である付け根部より同付け根部の上方が広く、
前記上部突出部は左右方向の中央部より左右両側部が前方に位置しており、
前記臀部支持部の下面は下向きに凸となる球状曲面形状に形成されている姿勢保持具。
A buttocks support that can support the buttocks of a seated person and an upper protrusion positioned above the buttocks support,
The width of the upper protruding portion in the left and right direction is wider above the base portion than the base portion which is the base of the buttock support portion,
Both left and right sides of the upper protruding portion are positioned forward of the central portion in the left-right direction,
The lower surface of the buttocks support portion is formed into a spherical curved surface shape that protrudes downward.
前記上部突出部には、着座者の腰部の両側を後方から支持可能な一対の腰部支持部が形成されていることを特徴とする請求項1又は請求項に記載の姿勢保持具。 3. The posture retainer according to claim 1 , wherein the upper projecting portion is formed with a pair of waist support portions capable of supporting both sides of the waist of the seated person from behind. 前記臀部支持部の一端側から突出し、両太腿の下側を支持可能な凹形状の太腿支持部を備える請求項1ないし請求項のうちいずれか一項に記載の姿勢保持具。 4. The posture retainer according to any one of claims 1 to 3 , further comprising a concave thigh support that protrudes from one end of the buttock support and can support the lower sides of both thighs.
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Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600083098A1 (en) * 2016-08-05 2018-02-05 Leonardo Osti DYNAMIC POSTURAL DEVICE
KR101750887B1 (en) * 2016-11-29 2017-06-26 서준석 Waist supporting chair
WO2018173100A1 (en) * 2017-03-21 2018-09-27 有限会社Opti Legless chair
JP7086543B2 (en) * 2017-08-22 2022-06-20 株式会社 Mtg Posture holder
JP7214347B2 (en) * 2018-01-30 2023-01-30 株式会社オカムラ Fixture component and fixture manufacturing method
US20210022512A1 (en) * 2018-03-30 2021-01-28 Backjoy Orthotics, Llc Posture seat
JP2021023544A (en) * 2019-08-05 2021-02-22 株式会社ジェイエスピー Cushion body for sitting
KR102163201B1 (en) * 2020-02-06 2020-10-08 주식회사 디에스앤 Functional chair
KR102303524B1 (en) * 2020-11-16 2021-09-23 주식회사 로이첸 Chair For Posture Correction
KR102487012B1 (en) * 2020-12-17 2023-01-09 김용석 Auxiliary chair for posture correction to fix the leg gap
KR20220116969A (en) * 2021-02-16 2022-08-23 (주)굿프렌드 Chair for right posture
KR102323964B1 (en) * 2021-05-07 2021-11-08 송호관 Chair for posture correction
KR102353586B1 (en) * 2021-05-26 2022-01-19 이명욱 A Functional Legless Chair
KR102661446B1 (en) * 2021-08-13 2024-04-29 주식회사 불스원 Functional seat chair
WO2023218528A1 (en) * 2022-05-10 2023-11-16 株式会社Mtg Chair with legs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009160195A (en) 2007-12-31 2009-07-23 Michiyo Sato Chair
JP2012515629A (en) 2009-01-23 2012-07-12 バックジョイ・オーソティックス・リミテッド・ライアビリティ・カンパニー Method and apparatus for dynamically correcting posture
JP3184686U (en) 2013-04-26 2013-07-11 鄭美麗 Seat and backrest with airbag

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138404A (en) * 1963-07-29 1964-06-23 Relaxo Bak Inc Auxiliary body support for vehicle seats
US3463547A (en) * 1967-10-20 1969-08-26 John M Brennan Flexible chair seat
US3512835A (en) * 1968-04-22 1970-05-19 Floetotto Chair
GB1447121A (en) * 1973-01-23 1976-08-25 Pel Ltd Chair shell
US4047757A (en) * 1976-05-03 1977-09-13 Eames Loren W Seating structures with flexible backs
JPS55179559U (en) * 1979-06-12 1980-12-23
US4367897A (en) * 1980-12-29 1983-01-11 Cousins Steven J Adjustable seat for the handicapped
US4658807A (en) * 1982-10-25 1987-04-21 International Positioning Systems, Ltd. Method for supporting and positioning the human anatomy
NO158403C (en) * 1984-05-08 1988-09-07 Peter Opsvik DEVICE AT CHAIR.
JPS6224755U (en) * 1985-07-24 1987-02-14
AU3038189A (en) * 1988-01-21 1989-08-11 Massachusetts Eye And Ear Infirmary Diagnosis of retinoblastoma
JPH044737Y2 (en) * 1988-02-19 1992-02-12
US5343876A (en) * 1989-03-16 1994-09-06 Rogers John E Modular pad
CA2004735C (en) * 1989-12-06 1996-09-24 Denis Matte One-piece shell for a chair
US5407247A (en) * 1992-05-18 1995-04-18 Forcier; Robert A. Lumbar supporting seat cushion
US5630648A (en) * 1992-08-27 1997-05-20 Harry C. Sweere Dynamic posture chair
JPH0638698U (en) * 1992-10-30 1994-05-24 若泉漆器株式会社 Chair
US5395162A (en) * 1993-02-16 1995-03-07 Jay Medical Ltd. Seating system
US6447058B1 (en) * 1999-06-25 2002-09-10 Nubax Vertical Innovations, Llc Seat means for preventing shock
US7172539B1 (en) * 2004-01-02 2007-02-06 Alice Bythewood Abdominal exercising support apparatus
JP2006334025A (en) * 2005-05-31 2006-12-14 Gurimu:Kk Sitting furniture
KR200400504Y1 (en) * 2005-08-16 2005-11-08 대일광업 주식회사 Proof-correction Implement For Pelvic Floor Muscles
US7607738B2 (en) * 2005-09-15 2009-10-27 Matthew Wayne Gregory Contoured seat and method
US7631941B2 (en) * 2006-03-15 2009-12-15 Chang James L Apparatus for supporting a person and method of forming thereof
JP2007289619A (en) * 2006-04-24 2007-11-08 Takeyoshi Hosono Cushion for correcting pelvis
WO2009131360A2 (en) * 2008-04-21 2009-10-29 Park Chang Joon Chair for correcting posture
JP4675991B2 (en) * 2008-08-08 2011-04-27 正一 小林 Chair cushion
CN201248513Y (en) * 2008-08-15 2009-06-03 蒙亮 Swivel chair
US20100038943A1 (en) * 2008-08-16 2010-02-18 Bryer Matthew D Ergonomic seat assembly
WO2011019165A2 (en) * 2009-08-10 2011-02-17 선문대학교산학협력단 Pelvis-correcting seat
TWM377911U (en) * 2009-10-23 2010-04-11 Formosa Sounding Corp Improved structure of chair cushion
IT1400537B1 (en) * 2010-05-26 2013-06-11 Pro Medicare S R L POSTURE SYSTEM, IN PARTICULAR FOR NON-DEAMBULATING OR PARTIALLY DEAMBULATING PEOPLE.
JP4769327B1 (en) 2010-06-07 2011-09-07 青柳 洪作 Posture correction device
CN201822353U (en) * 2010-06-10 2011-05-11 魏立民 Health-promotion cushion
KR20120002968U (en) * 2010-10-22 2012-05-03 이형준 correct posture chair
EP2690989B1 (en) * 2011-03-31 2017-07-12 BE Aerospace, Inc. Method of optimizing geometry of a seating element
CN102228347A (en) * 2011-06-20 2011-11-02 何泽其 Design principle and manufacture of 3-shaped concave surface of chair
WO2013068784A1 (en) * 2011-11-09 2013-05-16 Loan Pham Thi Kim A comfortable orthopedic chair for prevention of spinal diseases
JP5756742B2 (en) * 2011-12-19 2015-07-29 株式会社イノアックコーポレーション Armrest

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009160195A (en) 2007-12-31 2009-07-23 Michiyo Sato Chair
JP2012515629A (en) 2009-01-23 2012-07-12 バックジョイ・オーソティックス・リミテッド・ライアビリティ・カンパニー Method and apparatus for dynamically correcting posture
JP3184686U (en) 2013-04-26 2013-07-11 鄭美麗 Seat and backrest with airbag

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