JPWO2015080231A1 - Posture holder - Google Patents

Posture holder Download PDF

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JPWO2015080231A1
JPWO2015080231A1 JP2015551003A JP2015551003A JPWO2015080231A1 JP WO2015080231 A1 JPWO2015080231 A1 JP WO2015080231A1 JP 2015551003 A JP2015551003 A JP 2015551003A JP 2015551003 A JP2015551003 A JP 2015551003A JP WO2015080231 A1 JPWO2015080231 A1 JP WO2015080231A1
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support
posture
seated person
posture holder
support portion
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JP6741425B2 (en
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松下 剛
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)
  • Engineering & Computer Science (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Nursing (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)

Abstract

着座状態の臀部(42)を支持可能な凹状の球状曲面形状の第1支持部(23)と、その第1支持部(23)の下端から前方に突出し、太腿(43)の下側を支持可能な前部突出部(24)と、第1支持部(23)の上側に位置し、腰部(44)の腸骨(151)部分を支持可能な凸状湾曲形状の腰部支持部(28)を備えた上部突出部(25)とを備える。上部突出部(25)の付け根部の両側には、第1抉り部(30)を形成する。A concave spherically curved first support portion (23) capable of supporting the seated buttocks (42), and projecting forward from the lower end of the first support portion (23), the lower side of the thigh (43) is A front protrusion (24) that can be supported, and a convex curved lumbar support (28) that is located above the first support (23) and can support the iliac (151) portion of the waist (44). And an upper protrusion (25). On both sides of the base portion of the upper protrusion (25), a first rib portion (30) is formed.

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、着座者の姿勢を正しい状態に保持することが可能な姿勢保持具に関するものである。   The present invention relates to a posture holder that is used, for example, on a seat portion of a chair and can hold a seated person in a correct state.

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と、座部の後端から上方に延びる背部とが備えられている。   Conventionally, as this type of posture holder, for example, a configuration disclosed in Patent Document 1 has been proposed. In this conventional configuration, the entire posture holder is integrally formed of a thick cushion material such as foamed polyurethane. The posture holder includes a seat that bears most of the weight of the seated person and a back that extends upward from the rear end of the seat.

特開2011−254878号公報JP 2011-254878 A

この従来構成においては、着座者の臀部は座部に沈み込むが、座部と背部が左右方向においてフラットに形成されているため、着座者の腰部や下肢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, the buttocks of the seated person sink into the seat, but since the seat and the back are formed flat in the left-right direction, it is difficult to stably support the seated person's waist and lower limbs. 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、着座者の姿勢が適正になるようにサポートすることができる姿勢保持具を提供することにある。   The present invention has been made paying attention to such problems existing in the prior art. The purpose is to provide a posture holder that can support the posture of a seated person to be appropriate.

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、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とを備え、硬質の板材を含んで構成したことを特徴としている。   In order to achieve the above-mentioned object, this posture holding device includes a buttock support portion that can support a occupant's buttocks and a pair of lumbar support portions that can support both sides of the occupant's lumbar region from the rear, and is rigid. It is characterized by comprising the plate material.

この構成によれば、着座者が着座した状態で、姿勢保持具が大きく変形することなく、着座者を安定してサポートできて、姿勢保持具の腰部支持部により着座者の腰部分を適切に支持することができる。よって、着座者の姿勢を正しい状態に保持することができる。すなわち、腰部をその背骨の両側から安定した状態で支持できるため、着座者は、良好な座り心地を得ることができるとともに、疲労感等をほとんど覚えることなく、自然に姿勢保持される。また、姿勢保持具が硬質の板材を含んで構成されているため、着座者を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。そして、着座者が姿勢を崩した場合、姿勢保持具はほとんど変形しないため、着座者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。   According to this configuration, in a state where the seated person is seated, the posture holder can be stably supported without greatly deforming, and the waist portion of the seated person can be appropriately supported by the waist support portion of the posture holder. Can be supported. Therefore, the posture of the seated person can be maintained in a correct state. That is, since the waist can be supported in a stable state from both sides of the spine, the seated person can obtain a good sitting comfort and is naturally held in a posture without almost feeling fatigue. In addition, since the posture holder is configured to include a hard plate material, the seated person can be firmly supported, and the posture holding effect can be enhanced. When the seated person loses his / her posture, the posture holder is hardly deformed, so that the seated person can immediately return to the correct posture. When the posture is correctly held, muscles that maintain the posture are used and the muscles can be trained. As a result, even when the posture holder is not used, the correct posture can be naturally maintained.

前記の姿勢保持具によれば、着座者をその姿勢が適正になるようにサポートすることができるという効果を発揮する。   According to the posture holding tool, it is possible to support the seated person so that the posture is appropriate.

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。The front view of the attitude | position holder of FIG. 図1の姿勢保持具の平面図。The top view of the attitude | position holder of FIG. 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。The side cross section in the position of the 4-4 line | wire of FIG. 2 which shows a use condition with the skeleton of a 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。The front sectional view in the position of the buttock support part which shows a use condition. 使用状態を示す太腿支持部の位置における正断面図。The front sectional view in the position of the thigh support part which shows a use condition. 図2の7−7線断面図。FIG. 7 is a sectional view taken along line 7-7 in FIG. 図2の8−8線断面図。FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 2. 使用状態を斜め後方から見た図。The figure which looked at the use condition from diagonally back. 本体の正面図。The front view of a main body. 姿勢保持具の積層構造を示す断面図。Sectional drawing which shows the laminated structure of a posture holder. 図10の12−12線における断面図。Sectional drawing in the 12-12 line | wire of FIG. 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。The perspective view of the back side of the attitude | position holder of FIG. 図14の姿勢保持具の分解斜視図。The disassembled perspective view of the attitude | position holder of FIG. 図14の姿勢保持具の正面図。The front view of the attitude | position holder of FIG. 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 in FIG.

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, the posture holder of the embodiment will be described with reference to the drawings.
(First embodiment)
First, a first embodiment will be described with reference to FIGS.

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. 1-3, the attitude | position holder 21 of this embodiment is formed in the substantially petal shape as a whole. The posture holder 21 includes a main body 22 (see FIGS. 4 and 5) made of a plate made of hard synthetic resin such as polypropylene. Here, the hard synthetic resin is a foamed material or a solid material that has not been foamed, and has a hardness capable of supporting itself without being deformed by its own weight, for example, a Rockwell hardness of R50 to 110. 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 heel support portion 23 that supports the heel portion 42 of the seated person 41 is formed at the center portion in the front-rear direction of the posture holder 21. A front protrusion 24 is formed on the front lower side, which is one end side of the posture holder 21, toward the front. An upper protrusion 25 is formed on the rear upper side, which is the other end side of the posture holder 21, upward. As shown in FIGS. 1 and 2, a pair of first protrusions are provided on both left and right sides of the base of the upper protrusion 25 in order to allow appropriate bending in the backward tilt direction of the upper protrusion 25. A single turn part 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 a curved upper surface in the front-rear direction and the left-right direction so as to stably support the buttock portion 42 of the seated person 41 from the front-rear direction and the left-right direction. As a whole, it is formed in a concave shape having a substantially spherical curved surface. The lower surface of the collar support portion 23 is also formed in a spherical curved shape. And the lower surface of the collar part support part 23 and the front part protrusion part 24 is formed in the continuous spherical curved surface shape. As shown in FIGS. 1 and 3, a second turn portion 26 is formed on the front side of the central portion of the front protrusion 24. As shown in FIG. 6, on the left and right sides of the front projecting portion 24, that is, on both sides of the second rib portion 26, the lower limbs 45 of the seated person 41 can be supported in a substantially parallel state from the front. A pair of left and right thigh support portions 27 having a concave shape as viewed are formed. These thigh support portions 27 support the thigh 43 so as to be wrapped from below. Moreover, since the thigh support part 27 has a concave curved shape, the thigh 43 is restricted from opening 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 protrusion 25 is formed with a pair of left and right waist support portions 28 in which an upper portion 281 has a convex curved shape and a lower portion 282 has a concave curved shape. ing. An upper portion 281 having a convex curved shape is formed on each waist support portion 28 so as to bulge obliquely forward so that it faces the inner front side. Therefore, as shown in FIGS. 4 and 5, both sides of the pelvis 151 portion of the waist portion 44 of the seated person 41 can be pushed from the rear toward the inner front while avoiding the spine 152. A third rib 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 wall thickness t <b> 1 of the edge portion 301 of the main body 22 in the back portion of the first rib portion 30 is formed to be thicker than the wall thickness t <b> 2 of the other part of the main body 22. That is, when the waist support portion 28 is bent, concentrated stress acts on the edge portion 301 at the back of the first turn portion 30 of the main body 22. This stress may cause cracks and the like in the edge portion 301 and its vicinity. In this case, this crack or the like is suppressed by an increase in the wall 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 buttocks support portion 23 of the posture holder 21. When the posture holder 21 is placed on an installation surface such as a seat portion 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 leg 31 restricts the movement of the posture holder 21 in the left-right direction so that the upper body of the seated person 41 is not easily tilted left and right.

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 attached to the seating 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 made of an elastic material such as a skin sheet 341 made of an outer woven fabric or a knitted fabric, and 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 provided at positions below the upper protrusion 25 in the main body 22 at positions spaced apart from each other. In this way, moisture due to sweating can be released by the first hole 33. Further, when the cushion material 32 is molded, a part of the cushion material 32 enters the first hole 33 as shown in FIG. When a part of the cushion material 32 enters the first hole 33, peeling of the cushion material 32 from the surface of the main body 22 and movement of the cushion material 32 on the surface are suppressed.

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 in the entire main body 22. The second hole 221 and the first hole 33 are for releasing moisture accompanying sweating of the seated person. A part of the second hole 221 is also entered when the cushion material 32 is molded.

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 the office, when the desk holder 21 is used when sitting on a chair and performing 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 is seated on the posture holder 21, the lower surface of the position straddling the buttocks support part 23 to the front protrusion 24 has a spherical curved shape. Therefore, the posture holder 21 is slightly tilted forward by the weight of the seated person 41, and the buttocks 42 of the seated person 41 are supported on the spherical concave buttocks support part 23 in this state. At this time, since the inclination of the collar support part 23 in the left-right direction is restricted by the left and right legs 31, the collar support part 23 is relatively stable in the left-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 hip 42 of the seat occupant 41 is tilted slightly forward along with the slight forward tilt of the posture holder 21, so that the pelvis 151 of the seat occupant 41 is in a standing state. Will be supported on the buttocks support part 23. Since the pelvis 151 stands, the back muscles naturally stretch, so even if the posture holder 21 tilts forward, the upper body of the seated person does not tilt forward. Further, both thighs 43 of the seated person 41 are supported in a substantially parallel state by a thigh support portion 27 having a concave curved shape on the front protrusion 24. Therefore, the seated person's lower limbs 45 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。   Further, as the posture holder 21 tilts forward, the pair of waist support portions 28 of the upper protrusion 25 also moves forward, so that the iliac bone in the waist 44 of the seated person 41 can be removed as shown in FIGS. The pelvis 151 part including it is supported so that it may be wrapped from right and left. At this time, as shown in FIG. 8, both sides of the waist portion 44 are pushed and supported from the rear toward the inside front by the convex curved upper portions 281 in the pair of waist support portions 28 of the upper protrusion 25. As a result, the back of the seated person 41 is naturally extended without difficulty, and the posture is supported in a correct state with a good sitting comfort. Therefore, the seated person 41 can maintain the correct posture for a long time with almost no 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 rib portions 30 are formed on both side portions of the base portion of the upper projecting portion 25 of the posture holder 21. For this reason, when the seated person 41 is seated and leans back, the upper protrusion 25 is appropriately bent backward in the portion narrowed by the first turn part 30, and the seated person 41 Movement is allowed. In addition, when the seated person 41 is overweight or has a large body shape, the buckling due to the body shape is reduced by the first waist portion 30, and a comfortable sitting comfort can be ensured. That is, since both sides of the base portion of the upper protrusion 25, that is, both sides between the flange support portion 23 and the upper protrusion 25 are opened by the first turn portion 30, the feeling of cramping of the seated person is reduced. Is 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 portion of the chair but also on the floor surface. That is, since the main body 22 is made of a hard material, it can be used as a seat chair that can maintain its 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 posture holder 21 can be configured not to provide the front protrusion 24, for example. In this case, for example, the position indicated by the one-dot chain line 101 in FIG. When configured in this manner, for example, when used as a sitting chair on the floor, the lower leg 45 is not restricted by the thigh support portion 27, so that it becomes easy to sit in an arbitrary posture such as a crossed seat. The degree of freedom of the leg 45 of the seated person 41 increases. However, since the support of the lower leg 45 by the thigh support portion 27 is lost, the effect of keeping the thigh 43 horizontal is slightly diminished, but there is almost no problem because it is on the floor. And the collar part 42 can be kept substantially horizontal by the collar part support part 23 in which the leg 31 is formed in the left-right direction. For this reason, even when the thigh support portion 27 is not provided, the heel portion 42 is supported by the heel portion support portion 23 in a stable and natural manner in the front-rear direction and the left-right direction. Since the convex curved upper portion 281 in FIG. 28 is pushed and supported 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 above-described embodiment, the following effects can be obtained.
(1) According to the above-described embodiment, the buttocks 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 supported stably and naturally in the front-rear direction and the left-right direction by the buttocks support 23, the area for supporting the buttocks 42 is widened, and the body pressure is dispersed. For this reason, 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) The thigh support portions 27 on the left and right sides forming the concave curved shape of the front projecting portion 24 stably support both thighs 43 of the seated person 41 from the lower side in a wide area, and the lower limbs 45 are naturally To be aligned. Further, since the thigh support portion 27 has a concave curved shape, the thigh 43 is restricted from opening left and right. Accordingly, similarly to the above, the body pressure is dispersed and the seated state can be maintained without feeling fatigue, and the pelvis 151 of the seated person 41 can be kept horizontal without tilting. For this reason, as shown in FIG. 5, the spine 152 can be naturally upright in the left-right 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 formed of a hard plate material. For this reason, unlike the conventional configuration in which the entire posture holder 21 is formed of a thick elastic material such as a cushion material, the thigh 43 and the waist 44 are arranged at the waist support portion 28 with a large elasticity like the thick elastic material. It is possible to support firmly without causing deformation and enhance the posture retention effect. If the seat occupant 41 loses its posture, the posture holder 21 hardly deforms, so that the seat occupant 41 can immediately return to the correct posture. When the posture is correctly held, the muscle that maintains the posture can be used and trained, and as a result, the correct posture can be maintained naturally even when the posture holder 21 is not used. . Moreover, in the said conventional structure which formed the whole attitude | position holder with the cushioning material, when a attitude | position holder is mounted on a chair, a seat surface becomes high and becomes difficult to use because of the thickness. In contrast, in the present embodiment, since the main body 22 is formed of a hard resin, unlike the conventional configuration, the thickness of the posture holder 21 can be reduced, and the posture holder 21 is mounted on the chair 100 and used. There is almost no hindrance.

(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 of the heel support 23 and the front protrusion 24 has a spherical curved surface with a large radius of curvature in the front-rear direction, the posture holder 21 is in a forward tilted state when the seated person 41 is seated. Become. Therefore, the seated person 41 is supported in a state where the pelvis 151 is standing, and the seated person 41 is in a posture in which the back muscles are naturally extended. In this state, the seated person 41 causes the pelvic part 151 including the iliac bones to be pushed forward from the diagonally rear side on the left and right sides on both sides of the spine 152 in the lumbar part 44 by the lumbar support part 28 of the upper protruding part 25. The waist portion 44 is supported so as to be 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。   For this reason, the lumbar portion of the seated person 41 is also pushed forward, and as shown in FIGS. 4 and 5, the seated person 41 can stably support the buttocks 42 and both thighs 43. Thus, the upper body, that is, the spine 152 is naturally raised to an ideal S-curve shape so as to be in a correct posture without tilting left and right. In addition, the stability of the posture holder 21 in the left-right direction can be obtained by the legs 31, the inclination of the upper body can be suppressed, and a correct posture can be obtained. Therefore, even if the spine 152 of the seated person 41 is distorted in the left-right direction, or even if the back of the seated person 41 is stooped, the body is supported in the correct state, and the upper body of the seated person 41 is in the right and left neutral state. It grows naturally with posture.

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。   For this reason, the burden on the waist of the seated person 41 can be reduced, and the seated person 41 can relax and maintain the correct posture with ease while relaxing. 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 holder 21, but in such a case, the seated person 41 has pain and pain. Because it feels uncomfortable, it is difficult to maintain sitting for a long time. In addition, even if the seated person 41 is a warped waist where the waist portion 44 is curved forward, the pelvis 151 and the spine 152 are supported by being supported by supporting the waist portion 44 to the waist support portion 28. The burden on 44 can be reduced and the person 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 flange support portion 23 and the front protrusion 24 are formed in a spherical curved surface shape having a large curvature radius in the left-right direction, the posture holder 21 is allowed to tilt to some extent in the left-right direction. . Therefore, the seated person 41 can slightly tilt the upper body to the left and right, and can avoid cramping.

(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 project from both sides of the lower surface of the buttock support portion 23 of the posture holder 21. For this reason, for example, it is possible to prevent the posture holder 21 from being slipped on the seat portion of the chair 100 or to be excessively inclined in the left-right direction, and to be placed in a stable state.

(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 1st turn part 30 is formed in the both sides of the base part of the upper protrusion part 25. As shown in FIG. For this reason, even if the main body 22 of the posture holder 21 is formed of a hard synthetic resin, the seat occupant 41 sits back on the buttocks support portion 23 and leans back with respect to the upper protrusion 25. When the load is applied, the upper protrusion 25 can be bent. For this reason, it is possible to contribute to maintaining the correct posture of the seated person 41 and less fatigue. That is, since the main body 22 of the posture holder 21 is formed of a hard synthetic resin, the posture holder 21 has rigidity and hardness, and the deformation of the required portion can be ensured although the shape change is small. Therefore, the original function of the posture holder 21 can be effectively exhibited, and it can contribute to the relaxed posture maintenance 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 collar support portion 23 is formed in a concave spherical curved shape, the base portion of the upper protrusion 25 that continues upward from the collar support portion 23 is also the same as the collar support portion 23. A concave spherical curved surface is formed. Therefore, unlike the present embodiment, when the first turn portion 30 is not formed, the upper protrusion 25 is hard and has a shape that is difficult to bend backward, but in this embodiment, as described above. In addition, since the first rib portions 30 are formed on both side portions of the base portion of the upper protruding portion 25, the difficulty of bending is eliminated, and the upper protruding portion 25 is appropriately adapted to the body movement of the seated person 41. Yes.

(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 turn part 30 is formed on both sides of the base part of the upper protrusion part 25 and the same part is opened, the seated person 41 can be prevented from feeling cramped. On the other hand, in the case where the turn part 30 is not formed, the seated person 41 may hit this part when the body shape is large, and in such a case, a tight feeling will be felt.

(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) The weight of the posture holder 21 as a whole can be reduced by forming the first to third turned portions 30, 26, and 29.
(11) As described above, the third rib portion 29 is formed between the waist support portions 28. For this reason, it is possible to avoid the spine portion of the seated person 41 from hitting the upper projecting portion 25 when the seated person 41 turns back and leans back greatly. Therefore, discomfort in such a case can 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 turning portion 30, the second turning portion 26, and the third turning portion 29 form the turning portions at four locations. For this reason, the whole attitude | position holder 21 exhibits a petal shape and can be made excellent in design property.

(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 part 301 of the said 1st rib part 30 is formed so that it may become thicker than another part. For this reason, even when a large stress is applied to the first bent portion 30 due to the deformation caused by the tilting of the upper protruding portion 25, the possibility that the edge portion 301 of the first bent portion 30 is damaged 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 cushion member 32 is provided on the seating side surface of the main body 22. For this reason, the sitting comfort can be kept good by the elastic action and the buffering action of the cushion material 32.
(15) The whole is covered with the exterior sheet 34. For this reason, the appearance of the entire posture holder 21 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 present invention will be described with reference to FIG. In the embodiments and modifications after the second embodiment, the description will focus on the parts 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 2nd Embodiment, as shown in FIG. 13, the 1st hole 33 and the 2nd hole 221 of the main body 22 like 1st Embodiment are not provided. Therefore, in the second embodiment, the body 22 can be easily molded.

(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 present invention will be described with reference to FIGS.
In the present embodiment, compared with the first embodiment, the degree of turning of the second turning part 26 and the third turning part 29 is shallower.

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 bonded to the seating surface side of the main body 22 made of a hard material such as polypropylene using an elastomer-based adhesive. As shown in FIGS. 16 and 18, a fold 511 is formed on the periphery of the exterior sheet 51, and the exterior sheet 51 is seated on the surface of the body 22 in a state where the fold 511 is fitted to the periphery of the body 22. It is glued to. The back and bottom surfaces of the main body 22 are exposed. The exterior sheet 51 is made of a porous material that has flexibility and elasticity and has 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 protrusion 25. As shown in FIG. 18, each hole 52 includes a hole 521 in the main body 22 and a hole 522 in the exterior sheet 51, and the hole 521 in the exterior sheet 51 is formed larger than the hole 521 in the main body 22. For this reason, the inner peripheral edge of the hole 522 of the exterior sheet 51 protrudes toward the center of the hole from the inner peripheral edge of the hole 521 of the main body 22 so that the inner peripheral edge of the hole 521 of the main body 22 does not hit the seated person 41. Yes.

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 anti-slip 53 made of a material having a high friction coefficient is attached to the bottom surface of the front protrusion 25 and the lower end of the leg 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 exterior sheet 51, the number of parts is small and the configuration is simple. Moreover, since the back surface and lower surface of the main body 22 are exposed, the exterior sheet 51 may be small, and it is easy to cover the exterior sheet 51 on the body 22. Accordingly, the posture holder 21 can be manufactured at a 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。
(Example of change)
In addition, this embodiment can also be changed and embodied as follows.
-The heel support portion 23 of the posture holder 21 is made into a shape other than a spherical curved surface shape, for example, a flat surface, a cylindrical concave shape, a concave curved shape, or the like. In this case, the effect that the collar part 42 is stably supported from the front-rear direction and the left-right direction is reduced by the collar part support part 23. However, in the left-right direction, since the thigh 43 is restricted by the thigh support portion 27 having a concave curved shape, the heel portion 42 is also stabilized under the influence. Therefore, the seated person 41 is supported by pushing the both sides of the waist 44 from the back toward the inside front by the waist support part 28 while keeping the pelvis 151 horizontal. As described above, even when the buttocks support portion 23 of the posture holder 21 is formed in a shape other than the spherical curved surface shape, the posture of the seated person 41 can be supported 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 of the main body 22 and the opposite side.
-The cushion material 32 should be omitted.
-Omit the exterior sheet 34.

・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。
-Omit both the cushion material 32 and the exterior sheet 34. That is, the posture holder 21 includes 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 rib 30 at the base of the waist support 28 is provided only on one side of the left and right.
-Do not form any ridges other than the first ridge 30. When the third rib portion 29 is not formed, the pair of waist support portions 28 are continuously one in appearance, but since the waist support portion 28 protrudes forward, the central continuous portion hits the spine 152 and both sides thereof. Therefore, since both sides of the waist portion 44 can be pressed, there is substantially a pair.

・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。
-Form the collar support part 23 linearly in one direction in the front-rear direction or the left-right direction.
The main body 22 is made of FRP (glass fiber reinforced resin) in which the 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 ... Buttocks support part, 24 ... Front protrusion part, 25 ... Upper protrusion part, 26 ... Second hip part, 27 ... Thigh support part, 28 ... Lumbar support part, 29 3rd groin, 30 ... 1st groin, 301 ... Edge, 31 ... Leg, 32 ... Cushion material, 34 ... Exterior sheet, 41 ... Seated person, 42 ... Hip, 43 ... Thigh, 44 ... Lumbar, 45 ... lower limbs, 52 ... spine, t1 ... wall thickness of the edge, t2 ... wall thickness of other parts.

Claims (13)

着座者の臀部を支持可能な臀部支持部と、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とを備え、硬質の板材を含んで構成した姿勢保持具。 An attitude holder comprising a hard plate material, comprising a hip support part capable of supporting a seated person's buttocks and a pair of waist support parts capable of supporting both sides of the waist of the seated person from the rear. 前記臀部支持部を凹形状にした請求項1に記載の姿勢保持具。 The posture holder according to claim 1, wherein the collar support portion has a concave shape. 前記腰部支持部の前部下方に位置し、着座者の両太腿を下側から支持可能な凹形状の太腿支持部を備えた請求項1に記載の姿勢保持具。 The posture holding tool according to claim 1, further comprising a concave thigh support portion that is located below the front portion of the waist support portion and can support both thighs of a seated person from below. 前記腰部支持部は内側前方を指向する膨出形状に形成された請求項1〜3のうちのいずれか一項に記載の姿勢保持具。 The posture supporter according to any one of claims 1 to 3, wherein the waist support portion is formed in a bulging shape directed toward the inside front. 前記臀部支持部を球状曲面形状に形成した請求項2〜4のうちのいずれか一項に記載の姿勢保持具。 The posture holder according to any one of claims 2 to 4, wherein the collar support portion is formed in a spherical curved surface shape. 前記臀部支持部の下面の両側に脚を突設した請求項2〜5のうちのいずれか一項に記載の姿勢保持具。 The posture holder according to any one of claims 2 to 5, wherein legs are provided so as to protrude from both sides of the lower surface of the collar support portion. 着座状態の臀部を支持可能な臀部支持部と、その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と、前記臀部支持部の他端側に位置し、腰部の両側を後方から支持可能な一対の腰部支持部とを備え、本体を硬質の板材によって構成した姿勢保持具。 A buttocks support portion that can support the seated buttocks, a concave thigh support portion that protrudes from one end side of the buttocks support portion and can support the lower side of both thighs, and the other end side of the buttocks support portion And a pair of lumbar support portions that can support both sides of the lumbar portion from the rear, and a posture holder having a main body made of a hard plate material. 本体の表面に外装シートを設け設けて構成した請求項7に記載の姿勢保持具。 The posture holder according to claim 7, wherein an exterior sheet is provided on the surface of the main body. 前記腰部支持部の付け根部の側部に第1抉り部を形成した請求項7または8に姿勢保持具。 The posture holder according to claim 7 or 8, wherein a first rib portion is formed on a side portion of a base portion of the waist support portion. 前記両太腿支持部の間に第2抉り部を形成した請求項7〜9のうちのいずれか一項に記載の姿勢保持具。 The posture holder according to any one of claims 7 to 9, wherein a second rib portion is formed between the thigh support portions. 前記両腰部支持部の間に第3抉り部を形成した請求項7〜10のうちのいずれか一項に記載の姿勢保持具。 The posture holder according to any one of claims 7 to 10, wherein a third rib portion is formed between the both waist support portions. 前記本体の第1抉り部の縁部を他の部分より肉厚に形成した請求項9〜11のうちのいずれか一項に記載の姿勢保持具。 The posture holder according to any one of claims 9 to 11, wherein an edge portion of the first rib portion of the main body is formed thicker than other portions. 前記外装シートを本体の着座面側に被せ、本体の背面及び下面を露出させた請求項8〜12のうちのいずれか一項に記載の姿勢保持具。 The posture holder according to any one of claims 8 to 12, wherein the exterior sheet is placed on a seating surface side of the main body, and a back surface and a lower surface of the main body are exposed.
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