JP6741425B2 - Posture holder - Google Patents

Posture holder Download PDF

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JP6741425B2
JP6741425B2 JP2015551003A JP2015551003A JP6741425B2 JP 6741425 B2 JP6741425 B2 JP 6741425B2 JP 2015551003 A JP2015551003 A JP 2015551003A JP 2015551003 A JP2015551003 A JP 2015551003A JP 6741425 B2 JP6741425 B2 JP 6741425B2
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posture
seated person
buttocks
supporting
posture holder
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JPWO2015080231A1 (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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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/021—Detachable or loose seat cushions
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/12—Chairs 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/16—Chairs 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/029—Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions

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  • 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)

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 of a chair and that can hold a seated person in a correct posture.

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 holding tool, for example, a configuration disclosed in Patent Document 1 has been proposed. In this conventional configuration, the entire posture retainer is integrally formed by a thick cushion material such as foamed polyurethane. The posture retainer includes a seat portion that bears most of the weight of the seated person and a back portion that extends upward from the rear end of the seat portion.

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 waist and lower limbs of the seated person. As a result, it is difficult for the seated person to take the 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 by paying attention to the problems existing in such conventional techniques. It is an object of the present invention to provide a posture holder that can support a seated person so that the posture of the seated person is 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 tool is provided with a buttocks support part capable of supporting the buttocks of a seated person and a pair of waist support parts capable of supporting both sides of the waist of the seated person from behind, It is characterized by including the plate material of.

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, when the seated person is seated, the posture retainer can be stably supported without being greatly deformed, and the waist support portion of the posture retainer can properly support the waist portion of the seated person. Can be supported. Therefore, the posture of the seated person can be maintained in a correct state. That is, since the lumbar region can be supported from both sides of the spine in a stable state, the seated person can obtain a comfortable sitting comfort and can naturally maintain the posture without feeling fatigue. Further, since the posture retainer is configured to include the hard plate material, it is possible to firmly support the seated person and enhance the posture retaining effect. Then, 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 held correctly, the muscles that maintain 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 is not used.

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 holder, the seated person can be supported so that the posture thereof becomes 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 holding tool of 1st Embodiment. 図１の姿勢保持具の正面図。The front view of the posture holding tool of FIG. 図１の姿勢保持具の平面図。The top view of the attitude|position holding tool 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 section in the position of line 4-4 of Drawing 2 which shows a use condition with a human skeleton. 使用状態を示す臀部支持部の位置における正断面図。FIG. 6 is a front cross-sectional view showing the position of the buttocks support portion in a use state. 使用状態を示す太腿支持部の位置における正断面図。The right sectional view in the position of the thigh support part which shows a use state. 図２の７−７線断面図。7 is a sectional view taken along line 7-7 of FIG. 図２の８−８線断面図。FIG. 8 is a sectional view taken along line 8-8 of FIG. 2. 使用状態を斜め後方から見た図。The figure which looked at the use state from diagonally rear. 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 holding tool. 図１０の１２−１２線における断面図。FIG. 12 is a 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 holding tool 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。The front view of the posture holding tool of FIG. 図１７の１８−１８線における拡大断面図。FIG. 18 is an enlarged 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, the posture holder of the embodiment will be described with reference to the drawings.
(First embodiment)
First, a first embodiment will be described based on FIGS. 1 to 12.

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 holding tool 21 of this embodiment is formed in a substantially petal shape as a whole. The posture holder 21 is configured to include a main body 22 (see FIGS. 4 and 5) made of a plate material made of a hard synthetic resin such as polypropylene. Here, the hard synthetic resin is a foam material or a solid material that is not foamed, and has a hardness that allows it to be self-sustaining without being deformed by its own weight. For example, a hardness of R50 to 110 in Rockwell hardness. 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 buttocks support portion 23 having a concave curved shape that supports the buttocks 42 of the seated person 41 is formed in the center of the posture holder 21 in the front-rear direction. A front projection 24 is formed on the lower front side, which is one end of the posture holder 21, toward the front. An upper projecting portion 25 is formed upward on the rear upper side which is the other end of the posture holder 21. As shown in FIG. 1 and FIG. 2, a pair of first protrusions 25 are formed on both left and right sides of the root of the upper protrusion 25 in order to allow appropriate bending of the upper protrusion 25 in the backward tilt direction. One 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 buttocks support portion 23 has a curved upper surface in the front-rear direction and the left-right direction so as to stably support the buttocks 42 of the seated person 41 from the front-rear direction and the left-right direction. , Is formed in a concave shape having a substantially spherical curved surface as a whole. The lower surface of the buttocks support portion 23 is also formed into a spherical curved surface shape. The lower surfaces of the buttocks support 23 and the front protrusion 24 are formed into a continuous spherical curved surface. As shown in FIGS. 1 and 3, a second gouging portion 26 is formed on the front side of the central portion of the front protruding portion 24. As shown in FIG. 6, on the left and right sides of the front protruding portion 24, that is, on both sides of the second gouging portion 26, from the front side, the lower limbs 45 of the seated person 41 can be supported in a substantially parallel state. A pair of left and right thigh support portions 27 having a concavely curved shape when viewed are formed. These thigh support portions 27 support the thigh 43 so as to wrap it around from below. Further, since the thigh support portion 27 has a concave curved shape, it prevents the thigh 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 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 part 281 having a convex curved shape is formed on each of the lumbar support parts 28 so as to bulge obliquely toward the front so as to be directed inward. Therefore, as shown in FIG. 4 and FIG. 5, both sides of the pelvis 151 portion of the waist portion 44 of the seated person 41 can be pushed from the rear side to the inner front side while avoiding the spine 152. A third gouging portion 29 is formed between the pair of waist supporting 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 t1 of the edge portion 301 of the main body 22 in the inner part of the first gouging portion 30 is formed to be thicker than the wall thickness t2 of other portions of the main body 22. That is, when the waist support portion 28 is bent, the concentrated stress acts on the edge portion 301 at the back of the first gouged portion 30 of the main body 22. Then, this stress may cause cracks or the like at the edge portion 301 and its vicinity. In this case, the cracks and the like are suppressed by increasing 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 are provided on both sides of the lower surface of the buttocks support portion 23 of the posture holder 21 so as to project. When the posture retainer 21 is placed on the installation surface such as the seat of the chair 100, the posture retainer 21 is supported by the legs 31 in a stable state without much slippage on the installation surface. It has become so. In particular, the legs 31 regulate the lateral movement of the posture holder 21 so that the upper body of the seated person 41 is unlikely to lean 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 cushion material 32 made of foamed polyurethane foam is attached to the seating side surface of the main body 22. An outer sheet 34 covers the entire posture holding tool 21 including the main body 22 and the cushion material 32. The exterior sheet 34 is made of an outer skin sheet 341 made of a woven or knitted fabric and an elastic material such as EVA (ethylene/vinyl acetate copolymer resin) having a continuous foam laminated on the back surface of the outer 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 in the lower portion of the upper protruding portion 25 of the main body 22 at positions spaced from each other. With this configuration, the first holes 33 can release moisture associated with sweating. Further, when the cushion material 32 is molded, as shown in FIG. 11, part of the cushion material 32 enters the first hole 33. Part of the cushion material 32 enters into the first hole 33, so that 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 is for releasing moisture associated with sweating of the seated person together with the first hole 33. A part of the second hole 221 is also inserted when the cushion material 32 is formed.

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 holding tool 21 configured as described above will be described.
For example, in the office, when the posture 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 FIG. 4 to FIG. 6 and FIG. 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 projection portion 24 has a spherical curved surface shape. Since the seat occupant 41 is formed, the posture holding tool 21 slightly leans forward due to the weight of the seated person 41, and in this state, the buttocks 42 of the seated person 41 are supported on the buttocks support portion 23 having a spherical concave shape. At this time, since the left and right legs 31 restrict the inclination of the buttock support portion 23 in the left-right direction, the buttock support portion 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, as the posture holding tool 21 slightly leans forward, the buttocks 42 of the seated person 41 also leans slightly forward, so that the pelvis 151 of the seated person 41 stands up and the hips 42 of the seated person 41 in that state. Will be supported on the buttocks support part 23. Since the back muscles (streaks) are naturally stretched by the pelvis 151 standing, even if the posture holder 21 leans forward, the upper body of the seated person does not lean forward. Further, both thighs 43 of the seated person 41 are supported by the concavely curved thigh support portions 27 on the front projection 24 in a substantially parallel state. Therefore, the lower limbs 45 of the seated person are supported in the 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, due to the forward leaning of the posture holding tool 21, the pair of lumbar support portions 28 of the upper protruding portion 25 also move forward, so that the iliac in the lumbar portion 44 of the seated person 41 is moved as shown in FIGS. 3 and 4. The pelvis 151 part including 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 pushed and supported from the rear to the inside by the convex curved upper portions 281 of the pair of waist supporting portions 28 of the upper protruding portion 25. As a result, the back muscles of the seated person 41 are naturally stretched without difficulty, and the posture is supported in a correct state with good sitting comfort. Therefore, the seated person 41 can maintain a 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 gouged portions 30 are formed on both sides of the base of the upper protruding portion 25 of the posture holder 21. Therefore, when the seated person 41 is seated and leans backward, the upper projecting portion 25 is appropriately bent in the backward tilt direction in the portion narrowed by the first gouging portion 30, and the seated person 41 is seated. Movement is allowed. Further, when the seated person 41 is overweight or has a large body shape, the cramping due to the body shape is reduced by the first gouging portion 30, and a comfortable sitting comfort can be secured. That is, since the first gouging portion 30 opens both side portions of the base portion of the upper protruding portion 25, that is, both side portions between the buttocks support portion 23 and the upper protruding portion 25, the cramped feeling of the seated person is reduced. To 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 on the floor. 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 may be configured without the front protrusion 24, for example. In this case, for example, the position indicated by the alternate long and short dash line 101 in FIG. 3 is the front end of the posture holder 21. When configured in this way, for example, when it is placed on the floor and used as a seat chair, the lower limbs 45 are not restricted by the thigh support portions 27, so that it is easy to sit in any posture such as crossed legs. The degree of freedom of the lower limb 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 slightly diminished, but there is almost no problem because it is on the floor. The buttock support portion 23 having the legs 31 formed in the left-right direction can keep the buttock 42 substantially horizontal. Therefore, even if the thigh support portion 27 is not provided, the buttocks 42 are stably and naturally supported by the buttocks support portion 23 in the front-rear direction and the left-right direction, and both sides of the waist 44 are supported by the waist support portions. The upper portion 281 having a convex curved shape at 28 is pushed and supported from the rear toward the front inside, so that 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 buttock supporting portion 23 that supports the buttock 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 the buttocks 42 can stably and naturally support the buttocks 42 in the front-rear direction and the left-right direction by the buttocks support portion 23, and the area for supporting the buttocks 42 is widened to disperse the body pressure. Therefore, the seated person 41 can maintain the seated state without feeling much fatigue and 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 at the two left and right sides forming the concave curved shape of the front protruding 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 naturally. Are aligned with. Further, since the thigh support portion 27 has the concave curved shape, it restricts both thighs 43 from opening to the left and right. Therefore, similarly to the above, the body pressure is dispersed, the seated state can be maintained without feeling fatigue, 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 naturally stand 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 attitude holder 21 is formed of a hard plate material. Therefore, unlike the conventional configuration in which the posture holding tool 21 as a whole is formed of a thick elastic material such as a cushion material, the thigh 43 and the waist portion 44 in the waist support portion 28 have a large elasticity like the thick elastic material. It can be firmly supported without being deformed, and the posture holding effect can be enhanced. If the seated person 41 loses his/her posture, the posture holder 21 is hardly deformed, so that the seated person 41 can immediately return to the correct posture. When the posture is held correctly, the muscles that maintain the posture can be used to train the muscles. As a result, the posture can be naturally maintained even when the posture holder 21 is not used. .. Further, in the above-described conventional configuration in which the entire posture retainer is formed of the cushion material, when the posture retainer is placed on the chair, the seat surface becomes high due to its thickness, which makes it difficult to use. On the other hand, in the present embodiment, since the main body 22 is formed of hard resin, unlike the conventional configuration, the thickness of the posture holder 21 can be reduced, and the posture holder 21 can be mounted on the chair 100 for use. 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 buttocks support portion 23 to the front projection portion 24 has a spherical curved surface shape with a large radius of curvature in the front-rear direction, when the seated person 41 is seated, the posture holder 21 is tilted forward. Become. Therefore, the pelvis 151 of the seated person 41 is supported in a standing state, and the seated person 41 has a posture in which the back muscles naturally extend. In the seated person 41, the lumbar support portion 28 of the upper projecting portion 25 pushes the pelvis 151 portion including the ilium forward from the diagonally rear sides of the left and right sides on both sides of the spine 152 in the lumbar portion 44 in this state. And is supported so that the waist portion 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 portion of the seated person 41 is also pushed forward, and as shown in FIGS. 4 and 5, the seated person 41 also stably supports the buttocks 42 and the thighs 43. Thus, the upper body, that is, the spine 152 is naturally erected in an ideal S-curve shape so that the upper body, that is, the spine 152, does not tilt to the right and left and has a correct posture. In addition, the leg 31 can provide stability in the left-right direction of the posture holder 21, suppress the inclination of the upper body, and obtain a correct posture. Therefore, even if the spine 152 of the seated person 41 is distorted in the left-right direction, or if the back of the seated person 41 is tender, the body is properly supported and the upper body of the seated person 41 is properly left-right neutral. Stretches 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。 Therefore, 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 by stretching the back muscles. The burden can be reduced and the feeling of fatigue can be reduced. By the way, it is possible to stretch the back muscles even when the spine 152 of the seated person 41 or the lumbar spine is directly pushed forward without using the posture holding tool 21, but in such a case, the seated person 41 suffers pain or It feels uncomfortable and it is difficult to keep sitting for a long time. Even if the seated person 41 is a warped waist in which the waist portion 44 curves forward, the waist portion 44 is supported by the waist portion support portion 28 so that the pelvis 151 and the spine 152 are supported so that the waist portion is supported. 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 buttocks support 23 and the front protrusion 24 are formed in a spherical curved surface shape having a large radius of curvature even in the left-right direction, the posture holder 21 is allowed to tilt to the left-right direction to some extent. .. Therefore, the seated person 41 can lean the upper body lightly to the left and right, and 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 are projectingly provided on both sides of the lower surface of the buttocks support portion 23 of the posture holder 21. Therefore, it is possible to prevent the posture holder 21 from slipping on the seat of the chair 100 or excessively tilting in the left-right direction, and to mount the posture holder 21 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 first gouged portions 30 are formed on both sides of the base of the upper protruding 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 leans back and tilts backward with respect to the upper protrusion 25 when the seated person 41 is seated on the buttocks support 23. The upper protrusion 25 can be bent when a load is applied to the upper protrusion 25. For this reason, 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 formed of a hard synthetic resin, the posture holder 21 has rigidity and hardness, and although the shape change is small, it is possible to secure the deformation of a required portion. Therefore, it is possible to effectively exhibit the original function of the posture holder 21 and 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 buttock support portion 23 is formed in a concave spherical curved surface shape, the base portion of the upper protruding portion 25 continuous upward from the buttock support portion 23 is similar to the buttock support portion 23. It is formed in a concave spherical curved surface shape. Therefore, unlike the present embodiment, when the first gouging portion 30 is not formed, the upper projecting portion 25 has a hard shape and is difficult to bend backward, but in the present embodiment, as described above. In addition, since the first gouging portions 30 are formed on both sides of the base of the upper protruding portion 25, the difficulty of bending is eliminated, and the upper protruding portion 25 properly moves in the body of the seated person 41. Can handle.

（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 portion 30 is formed on both sides of the base of the upper protruding portion 25 and the same portion is opened, the seated person 41 can be prevented from feeling cramped. On the other hand, in the case where the scooped portion 30 is not formed, if the seated person 41 has a large body shape, the buttocks may hit this portion, and in such a case, a feeling of cramping is 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) By forming the first to third gouged portions 30, 26, 29, it is possible to reduce the weight of the posture holding tool 21 as a whole.
(11) As described above, the third gouged portion 29 is formed between the waist support portions 28. Therefore, when the seated person 41 leans backward, or when the seated person 41 leans back greatly, it is possible to prevent the spine portion of the seated person 41 from hitting the upper protruding portion 25. 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 gouging section 30, the second gouging section 26, and the third gouging section 29 form gouging sections at four locations. For this reason, the posture holding tool 21 as a whole exhibits a petal shape, which 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 other portions. Therefore, even if a large stress is applied to the first gouged portion 30 due to the deformation due to the tilt of the upper protruding portion 25, it is possible to prevent the edge portion 301 of the first gouged portion 30 from being damaged.

（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) The cushion member 32 is provided on the seating side surface of the main body 22. Therefore, it is possible to maintain a good sitting comfort by 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 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 based on FIG. It should be noted that, in the second and subsequent embodiments and modifications, the description will focus on 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 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. 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 based on FIGS.
In the present embodiment, as compared with the first embodiment, the second gouging portion 26 and the third gouging portion 29 are formed to have a shallow degree of gouging.

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。 Further, 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 back 511 is formed on the peripheral edge portion of the exterior sheet 51, and the exterior sheet 51 is seated on the seating side surface of the main body 22 with the fold back 511 fitted in the peripheral edge portion of the main body 22. Is glued to. The back and bottom surfaces of the body 22 are exposed. The exterior sheet 51 has flexibility and elasticity, and is made of a porous material having 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 is composed of a hole 521 of the main body 22 and a hole 522 of the exterior sheet 51, and the hole 521 of the exterior sheet 51 is formed larger than the hole 521 of the main body 22. For this reason, the inner peripheral edge of the hole 522 of the exterior sheet 51 protrudes toward the hole center side from the inner peripheral edge of the hole 521 of the main body 22, and the seated person 41 is prevented from hitting the inner peripheral edge of the hole 521 of the main body 22. 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 friction coefficient are attached to the bottom surface of the front protrusion 25 and the lower ends of the legs 31.
The following effects are obtained in the third embodiment.

（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. Further, since the back surface and the lower surface of the body 22 are exposed, the exterior sheet 51 may be small, and it is easy to cover the body 22 with the exterior sheet 51. Therefore, the posture 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。(Example of change)
Note that this embodiment can be modified and embodied as follows.
The shape of the buttocks support portion 23 of the posture holder 21 other than the 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 buttocks 42 are stably supported by the buttocks support portions 23 in the front-rear direction and the left-right direction is weakened. However, in the left-right direction, the thigh 43 is restricted by the thigh support portion 27 having the concave curved shape, and the hip 42 is also stabilized under the influence of the restriction. Therefore, with the pelvis 151 kept horizontal, the seated person 41 is supported by pushing both sides of the waist portion 44 from the back toward the inside front by the waist support portions 28. 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。-Providing the cushion material 32 on both the seating side and the opposite side of the main body 22.
-Omit the cushion material 32.
-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 should be configured to include only the main body 22.
-The leg 31 on the lower surface of the posture holding tool 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。-Providing the first gouging portion 30 at the base of the waist supporting portion 28 only on one side of the left and right sides.
-Do not form a gouging part other than the first gouging part 30. When the third gouging portion 29 is not formed, the pair of waist support portions 28 are continuous and become one in appearance, but since the waist support portion 28 projects forward, the central continuous portion hits the spine 152 or both sides thereof. Since both sides of the waist portion 44 can be pressed without the need, the pair substantially exists.

・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。-The buttocks support part 23 is formed in a straight line in one direction of the front-back direction or the left-right direction.
The main body 22 is made of FRP (glass fiber reinforced resin) in which resin is reinforced by 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 holding tool, 22... Main body, 23... Gluteal support part, 24... Front projection part, 25... Top projection part, 26... Second gouging part, 27... Thigh support part, 28... Lumbar support part, 29 …Third gouging part, 30…first gouging part, 301…edge part, 31…leg, 32…cushion material, 34…exterior seat, 41…seated person, 42…buttocks, 43…thighs, 44…waist part, 45... Lower limbs, 52... Spine, t1... Edge thickness, t2... Other portion thickness.

Claims (12)

着座者の臀部を支持可能な臀部支持部と、該臀部支持部の上方に位置する上部突出部とを有し、前記上部突出部は付け根部の左右の両側部に第１抉り部を備えるとともに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、前記臀部支持部と前記上部突出部とを硬質の板材を含んで一体に構成した姿勢保持具。 It has a buttocks supporting portion capable of supporting the buttocks of a seated person, and an upper projecting portion located above the buttocks supporting portion, and the upper projecting portion is provided with first gouging portions on both left and right sides of the base portion. A posture holding tool comprising a pair of waist supporting portions capable of supporting both sides of the waist of a seated person from the rear, wherein the buttocks supporting portion and the upper protruding portion are integrally configured by including a hard plate member. 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 buttocks support portion has a concave shape. 前記臀部支持部の前部に位置し、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 buttocks supporting portion located in front of the posture holder according to claim 1 having a concave thigh support portion capable of supporting the RyoFutoshimomo of the 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 holder according to any one of claims 1 to 3, wherein the waist support portion is formed in a bulge shape that is directed toward the front inside. 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 buttocks 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 retainer according to any one of claims 2 to 5, wherein legs are provided on both sides of a lower surface of the buttocks 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する上部突出部とを備えた本体を有し、前記上部突出部は付け根部の左右の両側部に第１抉り部を備えるとともに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、前記本体を硬質の板材によって一体に構成した姿勢保持具。 A buttock support part capable of supporting the seated buttock, a concave thigh support part projecting from one end side of the buttock support part and capable of supporting the lower side of both thighs, and the other end side of the buttock support part has a body with an upper projecting portion located, with the upper protrusion first the depression pair of lumbar support portion capable of supporting both sides from behind the waist provided with a on both sides of the left and right base portions the equipped, attitude retainer to the main body and integrally formed plate material rigid. 本体の表面に外装シートを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. 前記両太腿支持部の間に第２抉り部を形成した請求項７又は８に記載の姿勢保持具。 The posture holder according to claim 7 or 8 , wherein a second gouging portion is formed between the both 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７〜９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 10 , wherein a third gouging portion is formed between the waist supporting 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 an edge portion of the first gouged 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、及び請求項８を引用する請求項９〜１１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 the exterior sheet is covered on the seating surface side of the main body to expose the back surface and the lower surface of the main body.
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JP6936369B2 (en) 2021-09-15
TWI658821B (en) 2019-05-11
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TW201526885A (en) 2015-07-16

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