JPWO2006027822A1 - Seating mechanism and chair - Google Patents

Seating mechanism and chair Download PDF

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JPWO2006027822A1
JPWO2006027822A1 JP2006534935A JP2006534935A JPWO2006027822A1 JP WO2006027822 A1 JPWO2006027822 A1 JP WO2006027822A1 JP 2006534935 A JP2006534935 A JP 2006534935A JP 2006534935 A JP2006534935 A JP 2006534935A JP WO2006027822 A1 JPWO2006027822 A1 JP WO2006027822A1
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seat plate
seating
seating mechanism
mechanism according
control unit
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由紀恵 高橋
由紀恵 高橋
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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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting chairs
    • 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
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • 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
    • A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C9/00—Stools for specified purposes
    • A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects

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  • Chairs Characterized By Structure (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

本発明による着座機構は、保持体に設けられた支持部と、支持部を中心として略鉛直方向に遊動可能に設けられた座板と、支持部を挟んで設けられており且つ座板に鉛直方向の力が作用したときにその力に抗する力を座板に印加するように設けられた二つの制御部とを備える。また、本発明による椅子は、その着座機構が脚体に設置されたものである。The seating mechanism according to the present invention is provided with a support portion provided on the holding body, a seat plate provided so as to be movable in a substantially vertical direction around the support portion, and provided between the support portion and vertically on the seat plate. And two control units provided to apply a force against the force to the seat plate when a directional force is applied. The chair according to the present invention has a seating mechanism installed on a leg.

Description

本発明は、着座機構及び椅子に関する。   The present invention relates to a seating mechanism and a chair.

一般に、椅子は、安楽に腰掛けることを企図した構造を有するものが多い。例えば、背もたれを有する椅子では、着座者は、背もたれに背中を当てた姿勢で座る傾向にある。この場合、着座者は、後ろ重心の姿勢になりがちである。このような姿勢で、例えば机に向かうと、背部が曲げられ且つ腹部が圧迫される前屈みの状態となって前傾した頭部を首及び肩の筋肉で支えることとなるため、肩こりが起こり易い。   In general, many chairs have a structure intended to sit comfortably. For example, in a chair with a backrest, the occupant tends to sit in a posture with his back against the backrest. In this case, the seated person tends to be in the posture of the back center of gravity. In such a posture, for example, when heading to a desk, the back part is bent and the abdomen is pressed, and the head tilted forward is supported by the neck and shoulder muscles, so stiff shoulders are likely to occur. .

また、自律神経の健全な働きは、交感神経と副交感神経の均衡がとれた働きによって維持されることが知られている。ところが、上記のような前屈みの姿勢で長時間のデスクワークを続けると、疲労が重なって身体的には副交感神経の働きを要求するにもかかわらず、デスクワークには交感神経の働きが要求されるため、交感神経を強制的に緊張させる必要が生じてしまう。その結果、交感神経の働きと副交感神経の働きとの不均衡が引き起こされ、ストレス（交感神経過緊張）を増長させる原因となる。   In addition, it is known that the healthy functioning of the autonomic nerve is maintained by the balanced action of the sympathetic nerve and the parasympathetic nerve. However, if desk work is continued for a long time with the above-mentioned bend, the desk work requires the function of the sympathetic nerve despite the fact that fatigue overlaps and physically requires the function of the parasympathetic nerve. It becomes necessary to force the sympathetic nerves to be tense. As a result, an imbalance between the function of the sympathetic nerve and the function of the parasympathetic nerve is caused, which causes an increase in stress (sympathetic nerve overstress).

このような不都合を解消すべく、本発明者は、特許文献１記載の着座具を提案した。この着座具は、椅子の底面に設置され、座板の下面に設けられた支点部材によって座板が回動自在に支持されると共に、その座板の片側自由端の下面に設けられた弾性部材によってその座板が支点部材を中心に上方向に弾性的に支持されて成るものである。この着座具を用いると、交感神経を上位支配とすべきデスクワーク時に、座板に腰掛けた着座者が弾性部材の弾性力に抗して座板の片側自由端を押圧する前重心の姿勢で腰掛けることができ、もって交感神経の正常な働きを促すことが可能となる。
特開平11-244099号公報 In order to eliminate such inconvenience, the present inventor has proposed a sitting tool described in Patent Document 1. The seating tool is installed on the bottom surface of the chair, and the seat plate is rotatably supported by a fulcrum member provided on the lower surface of the seat plate. Thus, the seat plate is elastically supported upward about the fulcrum member. With this seating tool, when desk work should be dominated by sympathetic nerves, the seated person sitting on the seat plate sits in the posture of the center of gravity before pressing the free end of one side of the seat plate against the elastic force of the elastic member Thus, it is possible to promote the normal functioning of the sympathetic nerve.
JP 11-244099 A

ところで、近年では、他の種々なストレスや生活習慣の変化による身体機能の低下が目立ったり、それが要因の一つとなって身体に様々な歪みや種々の障害がますます生じ易くなってきており、自律神経の正常な活動を促進するのみならず、それらのより効果的且つ総合的な予防及び矯正方法を確立することが熱望されている。   By the way, in recent years, declines in physical functions due to various other stresses and changes in lifestyle habits have become conspicuous, and this has become one of the factors, and various distortions and various disorders have become more likely to occur. It is eager to not only promote normal activity of autonomic nerves, but also to establish more effective and comprehensive prevention and correction methods for them.

その一方で、上記のような不都合を解消するために、旧来から、医薬を用いたり、手技を定期的に受ける等の治療方法が行われているが、手間、時間、及び費用が掛かってしまうことから、より簡便な予防及び矯正手段も求められている。   On the other hand, in order to eliminate the above inconveniences, treatment methods such as using medicine or regularly receiving procedures have been performed, but it takes time, money, and cost. Therefore, simpler preventive and corrective means are also required.

そこで、本発明は、かかる事情に鑑みてなされたものであり、身体に生じ得る様々な歪みや種々の障害を、従来よりも効果的且つ総合的にしかも簡便に予防及び矯正することが可能な着座機構及び椅子を提供することを目的とする。   Accordingly, the present invention has been made in view of such circumstances, and can prevent and correct various distortions and various obstacles that may occur in the body more effectively, comprehensively and simply than before. An object is to provide a seating mechanism and a chair.

上記課題を解決するために、本発明者は、鋭意研究を重ねたところ、単に前重心の姿勢で腰掛けた状態を維持するだけでなく、着座しつつも恰も起立するような姿勢を保持することにより、身体に備わる様々な筋に適度な緊張を持続させることができることを見出し、本発明を完成するに至った。   In order to solve the above-mentioned problems, the present inventor has conducted extensive research and has not only maintained the sitting state with the posture of the front center of gravity, but also maintained a posture in which the heel stands up while sitting. Thus, it was found that moderate tension can be maintained in various muscles of the body, and the present invention has been completed.

すなわち、本発明による着座機構は、保持体に設けられた支持部と、支持部を中心として略鉛直方向に遊動可能に設けられた座板と、支持部を挟んで設けられており且つ座板に鉛直方向の力が作用したときにその力に抗する力を座板に印加する、又は印加するように設けられた二つの制御部とを備える。   That is, the seating mechanism according to the present invention includes a support portion provided on the holding body, a seat plate provided so as to be movable in a substantially vertical direction around the support portion, and a seat plate sandwiched between the support portions. When a vertical force is applied to the seat plate, a force against the force is applied to the seat plate, or two control units are provided to apply the force.

具体的には、二つの制御部は、着座方向において支持部よりも前方に配された第１の制御部と、着座方向において支持部よりも後方に配された第２の制御部と、から成ることが望ましい。   Specifically, the two control units include: a first control unit disposed forward of the support unit in the seating direction; and a second control unit disposed rearward of the support unit in the seating direction. It is desirable to consist.

より具体的には、第１の制御部は、座板に略鉛直上向きの抗力を印加するものであり、第２の制御部は、座板に略鉛直下向きの抗力を印加するものであると有用である。換言すれば、第１の制御部は、圧縮に反発するような部材であり、第２の制御部は、牽引（引張り）に抵抗するような部材であれば、特に制限されない。   More specifically, the first control unit applies a substantially vertical upward drag to the seat plate, and the second control unit applies a substantially vertical downward drag to the seat plate. Useful. In other words, the first control unit is not particularly limited as long as it is a member that repels compression and the second control unit is a member that resists traction (tension).

このように構成された着座機構においては、座板が保持体に設けられた支持部を中心にして遊動可能に設けられているので、てこの原理により、支持部が言わば‘支点’となってそれを境にして着座者の荷重バランスに応じて座板が傾動する。   In the seating mechanism configured as described above, the seat plate is provided so as to be freely movable around the support portion provided on the holding body. The seat plate tilts according to the load balance of the seated person with that as a boundary.

すなわち、着座者の身長に応じて適度な高さレベルにこの着座機構を設置して腰掛けるとき、例えば、着座者の重心線が支持部のやや後方に垂下すれば、着座方向における後方側の部位が押し下げられるように座板が傾動し、安楽な着座体勢となる。一方、つま先（より厳密には、中足趾節（ＭＰ）関節）が床面に接するように重心を前にずらして着座すれば、座板は略水平状態とされ、さらに踵が床面につくように大腿骨を動かしてやや前重心の体勢をとると、膝関節が下がって座板の前方側が押し下げられる。これにより、座板が前傾し、着座者も前傾姿勢となる。   That is, when this seating mechanism is installed and seated at an appropriate height level according to the height of the seated person, for example, if the center of gravity line of the seated person hangs slightly behind the support part, the rear side part in the seating direction The seat plate tilts so that can be pushed down, and a comfortable seating posture is achieved. On the other hand, if the toe (more precisely, the middle foot phalanx joint (MP) joint) is seated with the center of gravity shifted forward so that it touches the floor surface, the seat plate will be in a substantially horizontal state, and the heel will rest on the floor surface. If you move the femur so that it is in a position of a slight frontal center of gravity, the knee joint is lowered and the front side of the seat plate is pushed down. As a result, the seat plate is tilted forward, and the seated person is also tilted forward.

こうなると、座板の前方側の部位には、支持部よりも前方に位置する制御部（第１の制御部）から、鉛直下方の力（着座者の荷重）に対抗して鉛直上方の力が印加されると共に、同後方側の部位には、支持部よりも後方に位置する制御部（第２の制御部）から、鉛直上方へ引き上げる力に対抗して鉛直上方の力が印加される。これにより、座板が初期の姿勢状態（例えば略水平状態）に復帰するような力が座板全体に作用する。   When this happens, the force on the front side of the seat plate from the control part (first control part) located in front of the support part against the force vertically below (the seated person's load). Is applied to the part on the rear side, and a force above the vertical is applied from the control part (second control part) located behind the support part against the force pulled up vertically. . Thereby, a force that returns the seat plate to the initial posture state (for example, a substantially horizontal state) acts on the entire seat plate.

そして、座板ひいては着座者の前傾姿勢を保持しようとすれば、座板を復帰させる第１及び第２の制御部から加えられる力に対抗すべく、脊柱の伸展を維持し、且つ、抗重力筋をはじめとする身体の多くの筋群を同時に且つ適度に緊張させ続けなければならない。よって、着座者が、そのような前傾姿勢を保持するように本発明の着座機構に座するだけで、脊柱が前屈みになったり腰掛けた姿勢が崩れたりせず、しかも身体に備わる筋群の脆弱化が複合的に且つ有効に防止される。   If the seat plate and thus the occupant's forward leaning posture are to be maintained, the extension of the spinal column is maintained to counteract the forces applied by the first and second control units that return the seat plate, and Many muscle groups of the body, including gravity muscles, must continue to be strained simultaneously and appropriately. Therefore, the seated person can sit in the seating mechanism of the present invention so as to maintain such a forward tilted posture, and the posture in which the spine is bent forward or seated does not collapse, and the muscle groups of the body are provided. Vulnerability is prevented in a complex and effective manner.

また、第１の制御部は、座板を鉛直上向きに予め付勢するように設けられたものであり、第２の制御部は、座板を鉛直下向きに予め付勢するように設けられたものであると好適である。   The first control unit is provided so as to pre-urge the seat plate vertically upward, and the second control unit is provided so as to pre-energize the seat plate vertically downward. It is preferable that it is.

この場合、座板の前方側及び後方側の部位には、着座前の初期状態において既に、それぞれ鉛直上向きの力及び鉛直下向きの力が印加されている状態なので、着座者が座したときに、座板及び着座者の前傾姿勢を維持するのに必要な筋力すなわち筋群に対する負荷が増大される。よって、上述したような種々の筋群がより鍛錬される。   In this case, since the vertical upward force and the vertical downward force are already applied to the front and rear portions of the seat plate in the initial state before sitting, respectively, when the seated person sits, The muscular strength necessary to maintain the forward tilt posture of the seat plate and the seated person, that is, the load on the muscle group is increased. Therefore, various muscle groups as described above are further trained.

逆に言えば、筋群に対する負荷として、座板が予め付勢されていない場合と同程度の負荷を得る際に、座板の変位を低減することが可能となる。よって、座板及び第１及び第２の制御部の動作が軽減されるので、耐久性が向上される。   In other words, it is possible to reduce the displacement of the seat plate when obtaining a load equivalent to that when the seat plate is not biased in advance as the load on the muscle group. Therefore, since the operation of the seat plate and the first and second control units is reduced, the durability is improved.

さらに、座板が、着座方向において支持部よりも前方、より好ましくは前方端部に設けられた凸状部を有すると更に好適である。なお、凸状部は明確に‘凸状’を成すものだけでなく、座板からやや盛り上がったような形状のものをも含み、着座者の大腿部の裏側と当接する際に痛感を伴わないものが好ましい。   Furthermore, it is further preferable that the seat plate has a convex portion provided at the front side, more preferably at the front end portion in the seating direction. In addition, the convex part includes not only those that are clearly 'convex' but also those that are slightly raised from the seat plate, and is accompanied by pain when contacting the back side of the thigh of the seated person None is preferred.

こうすれば、着座者の大腿部が、その凸状部に当接して支えられるので、上述のように踵を床面につけるように大腿骨を動かして膝間接を下げると、凸状部が鉛直下向きの力の‘作用点’となって座板の前方側が押し下げられる。また、凸状部が大腿骨の動作の‘支点’となり、てこの原理によって股関節が上方に移動する。これらの動きにより、股関節が伸展され、下腿の伸筋群・屈筋群を適度に緊張させ易くなる。   In this way, the thigh of the seated person is supported by being in contact with the convex portion, and as described above, when the femur is moved so as to attach the heel to the floor, the convex portion is lowered. Becomes the 'action point' of vertically downward force, and the front side of the seat plate is pushed down. Further, the convex portion becomes a “fulcrum” of the movement of the femur, and the hip joint moves upward by the lever principle. By these movements, the hip joint is extended, and it becomes easy to moderately tension the extensor and flexor groups of the lower leg.

さらに、凸状部に力を集中させることができるので、着座者の筋の緊張に起因して発現される力が座板の広範囲に発散してしまうことが抑えられ、座板の前方側の部位を押し下げ易くなる。   Further, since the force can be concentrated on the convex portion, the force expressed due to the tension of the muscles of the seated person can be prevented from spreading over a wide area of the seat plate, It becomes easy to push down the part.

さらにまた、支持部が、座板の幅方向に亘って延在するように設けられたものであると、支持部によって座板の前後方向ひいては着座方向を画定し易くなると共に、座板を挟んでその前後に二つの制御部（第１及び第２の制御部）を効果的に配置させ易くなるので、一層好ましい。   Furthermore, when the support portion is provided so as to extend in the width direction of the seat plate, the support portion facilitates demarcation of the seat plate in the front-rear direction and hence the seating direction, and sandwiches the seat plate. Therefore, it is more preferable because the two control units (first and second control units) can be effectively arranged before and after that.

さらに、着座方向において第２の制御部よりも縁端側の保持部上に突設された止定部を備えるとより好適である。   Furthermore, it is more preferable to provide a stopping portion projecting on the holding portion on the edge side of the second control portion in the seating direction.

このようにすれば、着座者が腰掛けた当初に、着座方向において支持部よりも後方に重心線が垂下するような状態となって座板が後方に傾動しても、止定部と座板が干渉するので、過度の後傾が防止される。また、これにより、座板の前傾のみが可能となるばかりでなく、着座者の体勢が後傾して不安定になってしまうことも抑止され、着座者が前傾姿勢へ移行し易くなる。   In this way, when the seated person sits down, even if the center of gravity line hangs behind the support part in the seating direction and the seat plate tilts backward, the stationary part and the seat plate Will interfere with each other, preventing excessive back tilt. This not only allows the seat plate to be tilted forward, but also prevents the seated person from leaning backward and becoming unstable, making it easier for the seated person to shift to the forward tilted position. .

更に具体的には、二つの制御部が、弾性体、及び／又は、シリンダ装置であるものが挙げられる。ここで、弾性体としては、例えば各種ばね、ゴム、等が挙げられ、シリンダ装置としては、例えば、筒状の気圧又は油圧シリンダ若しくはダンパ等が挙げられる。   More specifically, the two control units may be elastic bodies and / or cylinder devices. Here, examples of the elastic body include various springs and rubbers, and examples of the cylinder device include a cylindrical air pressure, a hydraulic cylinder, a damper, and the like.

加えて、支持部は、着座方向における位置が調節可能に設けられたものであると一層好適である。これにより、着座者の体型等に応じて、着座状態における重心位置と、‘支点’として機能する支持部との相対的な配置関係を任意に調節することが可能となる。   In addition, it is more preferable that the support portion is provided so that the position in the seating direction can be adjusted. This makes it possible to arbitrarily adjust the relative positional relationship between the position of the center of gravity in the seated state and the support portion functioning as the “fulcrum” according to the body shape of the seated person.

また、本発明による椅子は、本発明の着座機構を備えて有効に機能するものであり、上述した本発明による着座機構と、それが設置された脚体とを備える。   Moreover, the chair by this invention is provided with the seating mechanism of this invention, and functions effectively, and is provided with the seating mechanism by the above-mentioned this invention, and the leg body in which it was installed.

以下、本発明の実施形態について詳細に説明する。なお、同一要素には同一の符号を付し、重複する説明を省略する。また、上下左右等の位置関係は、特に断らない限り、図面に示す位置関係に基づくものとする。さらに、図面の寸法比率は、図示の比率に限定されるものではない。   Hereinafter, embodiments of the present invention will be described in detail. In addition, the same code | symbol is attached | subjected to the same element and the overlapping description is abbreviate | omitted. Further, the positional relationship such as up, down, left and right is based on the positional relationship shown in the drawings unless otherwise specified. Furthermore, the dimensional ratios in the drawings are not limited to the illustrated ratios.

図１は、本発明による着座機構及びそれを備える椅子の好適な一実施形態を模式的に示す斜視図である。また、図２及び図３は、それぞれ、図１に示す着座機構及び椅子の正面図及び背面図である。さらに、図４は、図１に示すIV−IV線に沿う断面図である。   FIG. 1 is a perspective view schematically showing a preferred embodiment of a seating mechanism according to the present invention and a chair including the same. 2 and 3 are a front view and a rear view of the seating mechanism and the chair shown in FIG. 1, respectively. FIG. 4 is a cross-sectional view taken along the line IV-IV shown in FIG.

椅子１０は、着座具１（着座機構）が脚体２上に設置されたものである。着座具１は、主として略矩形を成す板状部材で形成された座板１１と略同形状の板状部材で形成された底板１２（保持部）とを備えている。座板１１と底板１２との間には、底板１２の幅方向に亘って延在するように、断面略台形状を成す支持部１３が介設されている。支持部１３の上端には、座板１１の底壁面が当接している。   The chair 10 is one in which a sitting tool 1 (sitting mechanism) is installed on a leg 2. The seating tool 1 includes a seat plate 11 formed mainly by a plate-like member having a substantially rectangular shape and a bottom plate 12 (holding portion) formed by a plate-like member having substantially the same shape. A support portion 13 having a substantially trapezoidal cross section is interposed between the seat plate 11 and the bottom plate 12 so as to extend in the width direction of the bottom plate 12. The bottom wall surface of the seat plate 11 is in contact with the upper end of the support portion 13.

この支持部１３は、着座方向（図示において支持部１３と水平に直交する方向）における前後位置が任意に調節可能に設けられている。その機構としては、例えば、底板１２上に設けられた既知のギア歯車式の移動レール（図示せず）や、支持部１３が嵌め込まれるように底板１２上に複数形成された嵌合溝（図示せず）等が挙げられる。   The support portion 13 is provided such that the front-rear position in the seating direction (the direction orthogonal to the support portion 13 in the drawing) can be arbitrarily adjusted. As the mechanism, for example, a known gear-gear-type moving rail (not shown) provided on the bottom plate 12 or a plurality of fitting grooves (see FIG. 5) formed on the bottom plate 12 so that the support portion 13 is fitted. Not shown).

また、着座方向において支持部１３よりも前方の底板１２の端部（前端部）上には、複数の巻きばね１４（全体として第１の制御部）が、底板１２の縁に沿って固設されている。これらの巻きばね１４は、座板１１が静置された状態において、圧縮された状態で座板１１の底壁面と当接している。なお、巻きばね１４の上方端は、座板１１の底壁面に固定されていてもいなくてもよい。   In addition, a plurality of winding springs 14 (a first control portion as a whole) are fixed along the edge of the bottom plate 12 on the end portion (front end portion) of the bottom plate 12 in front of the support portion 13 in the seating direction. Has been. These winding springs 14 are in contact with the bottom wall surface of the seat plate 11 in a compressed state when the seat plate 11 is left stationary. The upper end of the winding spring 14 may or may not be fixed to the bottom wall surface of the seat plate 11.

さらに、着座方向において支持部１３よりも後方の底板１２の端部（後端部）上には、複数の巻きばね１５（全体として第２の制御部）が、底板１２の縁に沿って固設されている。これらの巻きばね１５は、座板１１が静置された状態において、拡張された状態で座板１１の底壁面に固定されている。   Further, on the end portion (rear end portion) of the bottom plate 12 behind the support portion 13 in the seating direction, a plurality of winding springs 15 (second control portion as a whole) are fixed along the edge of the bottom plate 12. It is installed. These winding springs 15 are fixed to the bottom wall surface of the seat plate 11 in an expanded state when the seat plate 11 is stationary.

またさらに、巻きばね１５よりも更に後方の底板１２の縁部上には、底板１２の幅方向に亘って延在するように、断面略台形状を成す止定部１７が介設されている。この止定部１７は、高さが支持部１３よりも低くされており、支持部１３上に座板１１が静置された状態において、座板１１は止定部１７から一定の間隔を有して配置される。   Further, a fixing portion 17 having a substantially trapezoidal cross section is provided on the edge of the bottom plate 12 further rearward than the winding spring 15 so as to extend in the width direction of the bottom plate 12. . The fixing portion 17 has a height lower than that of the support portion 13, and the seat plate 11 has a certain distance from the fixing portion 17 when the seat plate 11 is placed on the support portion 13. Arranged.

さらにまた、着座方向における座板１１の前方端部（より具体的には複数の巻きばね１４が設けられている位置）の上面には、緩やかに盛り上がった断面略台形状を成す凸状部１６が、底板１２の幅方向に亘って延在するように突設されている。   Furthermore, on the upper surface of the front end portion of the seat plate 11 in the seating direction (more specifically, the position where the plurality of winding springs 14 are provided), the convex portion 16 having a substantially trapezoidal cross section that gently rises. However, it protrudes so that it may extend over the width direction of the baseplate 12. FIG.

また、脚体２は、底板１２の底壁面の略中央部に固定された脚受具２１と、周方向に回動可能にその脚受具２１に上方端が接続された伸縮ロッド２３と、その伸縮ロッド２３の他方端が接続された油圧シリンダ２４とを備えている。伸縮ロッド２３の周壁には、例えば上下方向に枢動可能な座高調節レバー２２が設けられており、それを動かすことで油圧シリンダ２４が駆動され、伸縮ロッド２３が伸縮するようになっている。また、油圧シリンダ２４は、複数の脚２５を有する脚座に固定されている。   The leg body 2 includes a leg holder 21 fixed to a substantially central portion of the bottom wall surface of the bottom plate 12, a telescopic rod 23 having an upper end connected to the leg holder 21 so as to be rotatable in the circumferential direction, And a hydraulic cylinder 24 to which the other end of the telescopic rod 23 is connected. For example, a seat height adjustment lever 22 that can be pivoted in the vertical direction is provided on the peripheral wall of the telescopic rod 23, and the hydraulic cylinder 24 is driven by moving the lever to adjust the telescopic rod 23. The hydraulic cylinder 24 is fixed to a leg seat having a plurality of legs 25.

このように構成された着座具１及びそれを備える椅子の作用について、さらに図５を参照して以下詳説する。図５は、本発明による着座機構及びそれを備える椅子の好適な他の一実施形態に人が腰掛けた状態を模式的に示す側面図である。椅子３０は、着座具１の座板１１上面に適宜のクッション材３が付設されたこと以外は、椅子１０と同様に構成されたものである。   The operation of the sitting tool 1 configured as described above and the chair including the sitting tool 1 will be described in detail below with reference to FIG. FIG. 5 is a side view schematically showing a state where a person is seated on another preferred embodiment of the seating mechanism and the chair including the same according to the present invention. The chair 30 is configured in the same manner as the chair 10 except that an appropriate cushion material 3 is attached to the upper surface of the seat plate 11 of the sitting tool 1.

椅子３０に座る際には、まず、着座者Ｈの身長に合うように、座高調節レバー２２を操作して油圧シリンダ２４によって伸縮ロッド２３の長さを調節する。具体的には、椅子３０の前に起立し、座板１１の鉛直方向レベルが膝窩（膝の裏の皺がある部位）よりも例えば３〜１０ｃｍ程度高くなるように伸縮ロッド２３の長さを調節すると好ましい。また、後述するように、着座して座板１１が略水平状態にあるときに、つま先（ＭＰ関節）が床面に接するように、座板１１の高さを設定することが望ましい。   When sitting on the chair 30, first, the seat height adjustment lever 22 is operated and the length of the telescopic rod 23 is adjusted by the hydraulic cylinder 24 so as to match the height of the seated person H. Specifically, the length of the telescopic rod 23 stands in front of the chair 30 so that the vertical level of the seat plate 11 is, for example, about 3 to 10 cm higher than the popliteal (the part with the heel behind the knee). Is preferable. As will be described later, it is desirable to set the height of the seat plate 11 so that the toes (MP joints) are in contact with the floor surface when the seat plate 11 is seated and in a substantially horizontal state.

さらに、座板１１の傾動の‘支点’として機能する支持部１３の前後位置を適宜調節する。具体的には、着座者の大転子（大腿骨最上端部）の近傍に支持部１３が位置するように支持部１３の位置を調節すると好ましい。   Furthermore, the front-rear position of the support portion 13 that functions as a “fulcrum” for tilting the seat plate 11 is adjusted as appropriate. Specifically, it is preferable to adjust the position of the support portion 13 so that the support portion 13 is positioned in the vicinity of the greater trochanter (the uppermost end portion of the femur) of the seated person.

この状態で着座すると、通常、着座者Ｈの重心線が支持部１３よりも後方に垂下する場合、座板１１は後方に傾動するものの、座板１１の後端部が止定部１７と干渉する。これにより、着座者Ｈが腰掛けた際、座板１１は止定部１７で支えられて座面すなわち着座者Ｈの大腿骨が略水平に保たれ、つま先（ＭＰ関節）が床面に接する。この体勢は、骨盤がやや後傾しており比較的安楽な着座状態である。   When sitting in this state, when the center of gravity line of the seated person H hangs backward from the support portion 13, the seat plate 11 tilts backward, but the rear end portion of the seat plate 11 interferes with the fixing portion 17. To do. As a result, when the seated person H sits down, the seat plate 11 is supported by the fixing portion 17 so that the seat surface, that is, the femur of the seated person H is kept substantially horizontal, and the toes (MP joints) are in contact with the floor surface. This posture is a relatively comfortable seating state with the pelvis tilted slightly backward.

また、この体勢では、通常、大腿骨の遠位端から大腿骨全長の約三分の一の部位が凸状部１６と当接する。そして、この状態から、踵が床面につくように大腿骨を動かすと、大腿骨遠位端に位置する膝関節が下がり、凸状部１６が鉛直下向きの力の‘作用点’となって座板１１の前方端が押し下げられる。同時に、凸状部１６が大腿骨の動作の‘支点’となり、大腿骨近位端に位置する股関節が上方に移動する。これらの動きにより、股関節が解剖学的に伸展される。   Further, in this posture, generally, about one third of the total length of the femur from the distal end of the femur contacts the convex portion 16. Then, when the femur is moved so that the heel is attached to the floor surface from this state, the knee joint located at the distal end of the femur is lowered, and the convex portion 16 becomes an “action point” of the vertically downward force. The front end of the seat plate 11 is pushed down. At the same time, the convex portion 16 becomes a “fulcrum” for the movement of the femur, and the hip joint located at the proximal end of the femur moves upward. These movements extend the hip joint anatomically.

また、その股関節の伸展により、下腿の伸筋群・屈筋群が適度に緊張すると共に、股関節における大殿筋及びハムストリングス筋の収縮等が生じる。さらに、関節を固定するために、屈筋群の一つである腸腰筋等も収縮する。   Further, the extension of the hip joint moderately tensions the extensor and flexor groups of the lower leg and causes contraction of the gluteal and hamstring muscles in the hip joint. Furthermore, in order to fix the joint, the iliopsoas muscle, which is one of the flexor muscle groups, also contracts.

このようにして座板１１が前傾すると、着座者Ｈの重心が前方に移動し、骨盤は、座板１１が略水平状態にあった当初よりも前傾すると共に、脊柱が伸びて着座者Ｈはやや前傾姿勢で着座した状態となる。なお、着座者Ｈが椅子１０へ座ることに慣れてくれば、着座した初期状態から、このような前傾姿勢をとることができる。   When the seat board 11 is tilted forward in this way, the center of gravity of the seated person H moves forward, and the pelvis tilts forward from the beginning when the seat board 11 is in a substantially horizontal state, and the spine extends and the seated person sits. H sits in a slightly forward tilted posture. In addition, if the seated person H gets used to sitting on the chair 10, it can take such a forward leaning posture from the initial sitting state.

ここで、座板１１が前傾した状態では、座板１１の前方端部の下方に設けられた巻きばね１４は、着座者Ｈの荷重による圧縮に反発するように鉛直上向きの力を座板１１の前方端部に印加する。これにより、座板１１は水平状態に復帰するように、ただし、着座者Ｈの荷重と巻きばね１４の反発力との均衡がとれる位置まで押し上げられる。   Here, in a state where the seat plate 11 is tilted forward, the winding spring 14 provided below the front end portion of the seat plate 11 exerts a vertical upward force so as to repel compression caused by the load of the seated person H. 11 is applied to the front end. Thereby, the seat plate 11 is pushed up to a position where the load of the seated person H and the repulsive force of the winding spring 14 can be balanced so as to return to the horizontal state.

それに加えて、座板１１が前傾した状態では、座板１１の後方端部の下方に設けられた巻きばね１５は、座板１１が引き上げられるのに伴って引き伸ばされ、その引っ張りに抵抗するように鉛直下向きの力を座板１１の後方端部に印加する。そうすると、支持部１３がてこの‘支点’として機能するので、座板１１の前方端部が更に引き上げられる。よって、座板１１は、巻きばね１４の反発力のみによるよりも、水平状態により一層復帰するように動作する。   In addition, when the seat plate 11 is tilted forward, the winding spring 15 provided below the rear end of the seat plate 11 is stretched as the seat plate 11 is pulled up, and resists the pulling. Thus, a vertically downward force is applied to the rear end of the seat plate 11. Then, since the support portion 13 functions as a lever “fulcrum”, the front end portion of the seat plate 11 is further lifted. Therefore, the seat plate 11 operates to return more in the horizontal state than by only the repulsive force of the winding spring 14.

したがって、巻きばね１４の反発力だけでは、着座者Ｈが自身の荷重によってある程度前傾姿勢を維持し得ることができたとしても、巻きばね１５の引張力によって座板１１の前方端部が更に押し上げられる（図示矢印Ｙ参照）ので、着座者Ｈは、その前傾姿勢を保持するために必要な筋肉を一層緊張させる必要がある。   Therefore, even if the seated person H can maintain the forward leaning posture to some extent by its own load only by the repulsive force of the winding spring 14, the front end portion of the seat plate 11 is further increased by the tensile force of the winding spring 15. Since it is pushed up (see the arrow Y in the figure), the seated person H needs to further strain the muscles necessary to maintain the forward tilted posture.

すなわち、巻きばね１４の反発力と巻きばね１５による引張力とによって、座板１１が水平方向に強力に復元されるような動作が生じるので、下肢共々全身の筋を弛緩させてしまうと、座板１１が簡易に初期の水平状態に復することとなる。こうなると、骨盤が後傾して当初の安楽な着座状態となってしまう。   That is, the repulsive force of the winding spring 14 and the tensile force of the winding spring 15 cause an operation that causes the seat plate 11 to be strongly restored in the horizontal direction. The plate 11 simply returns to the initial horizontal state. In this case, the pelvis is tilted backward and the original comfortable seating state is obtained.

よって、座板１１の前傾ひいては着座者Ｈの上述した前傾姿勢を保持するためには、下腿の伸筋及び屈筋群（下腿三頭筋）の筋緊張を適度に且つ継続的又は断続的に持続させる必要がある。逆にこのような筋緊張を維持すれば、筋力の脆弱化を防止できると共に、筋ポンプ作用によって静脈血・リンパの還流が促され、下腿の浮腫を防止したり足首を引き締めたりするといった効果が得られる。   Therefore, in order to keep the seat plate 11 tilted forward and the above-described forward tilted posture of the seated person H, the muscle tension of the extensors of the lower leg and the flexor group (triceps surae) is moderately and continuously or intermittently. Need to last. On the other hand, if such muscle tone is maintained, the weakness of the muscular strength can be prevented, and venous blood / lymph recirculation is promoted by the muscle pump action, which prevents the lower leg edema and tightens the ankle. can get.

また、座板１１及び着座者Ｈの前傾姿勢を保持するためには、股関節が内旋・外旋中間位で凸状部に接し易くなるので、特に、股関節の大腿筋膜張筋をはじめとする内旋筋群、及び梨状筋をはじめとする外旋筋群、並びに、股関節の伸筋及び屈筋をも適度に緊張させる必要がある。逆にこのような筋緊張を持続すれば、それらの筋力の発達を促進でき、その結果、股関節に生じ得る障害を有効に予防することができる。   Further, in order to maintain the forward tilting posture of the seat plate 11 and the seated person H, the hip joint can easily come into contact with the convex portion at the intermediate / external rotation position. The internal rotator muscle group and the external rotator muscle group including the piriform muscle, and the extensor and flexor muscles of the hip joint need to be moderately tensioned. Conversely, if such muscle tone is maintained, the development of their muscular strength can be promoted, and as a result, a disorder that can occur in the hip joint can be effectively prevented.

さらに、座板１１及び着座者Ｈの前傾姿勢を保持することにより、大腿骨及び脛骨が、人が本来的に有する生理的に適正な状態（生理的ライン）に復するようになるので、膝の外反（Ｘ脚）や内反（Ｏ脚）を矯正するという効果も奏される。   Furthermore, by maintaining the forward tilting posture of the seat plate 11 and the seated person H, the femur and tibia are restored to the physiologically proper state (physiological line) that the person originally has. The effect of correcting knee valgus (X leg) and varus (O leg) is also achieved.

またさらに、座板１１及び着座者Ｈの前傾姿勢を保持するためには、股関節を伸展する筋であり且つ坐骨結節に起始するハムストリングス筋（大腿二頭筋、半健半膜様筋）の緊張を適度に且つ継続的又は断続的に持続させる必要がある。逆にこのような筋緊張を維持すれば、股関節の屈筋である大腿四頭筋の適度な緊張も引き起こされる。これにより、大腿の筋萎縮を抑止することができ、もって大腿の抗重力筋の筋力低下を防止することが可能となる。   Furthermore, in order to maintain the forward leaning posture of the seat plate 11 and the seated person H, the hamstrings muscle (the biceps femoris muscle, the semi-healthy meningiform muscle that is a muscle that extends the hip joint and starts at the sciatic nodule) ) Tension must be maintained moderately and continuously or intermittently. Conversely, if such muscle tension is maintained, moderate tension of the quadriceps muscle, which is the flexor of the hip joint, is also caused. Thereby, muscle atrophy of the thigh can be suppressed, and thus it is possible to prevent a decrease in muscle strength of the anti-gravity muscle of the thigh.

さらにまた、椅子３０に腰掛けた状態で座板１１及び着座者Ｈの前傾姿勢を保持することにより、足を組むことや他の不自然な下肢の肢位をとることが困難となるので、身体の歪みを予防でき、また、身体に生じている歪みを矯正することもできる。   Furthermore, by maintaining the forward tilting posture of the seat plate 11 and the seated person H while sitting on the chair 30, it becomes difficult to assemble the legs and take other unnatural leg positions, Body distortion can be prevented, and distortion occurring in the body can be corrected.

また、座板１１及び着座者Ｈの前傾姿勢を保持すれば、骨盤において、股関節伸筋群の大殿筋、外転に関与する中殿筋、内旋及び外転に関与する小殿筋の適度な筋緊張も継続的又は断続的に維持される。こうすれば、これらの筋の萎縮が抑制され、筋力の脆弱化を防止できる。そればかりか、美容的観点に立てばいわゆるヒップアップの効果が奏される。しかも、大殿筋、中殿筋、及び小殿筋の緊張のみならず、骨盤底筋の緊張をも生じるので、着座者Ｈが痔ろうや痔核等を患っていても、それらが座板１１の座面から直接圧迫されることを回避できる。   Further, if the seat board 11 and the seated person H are kept in the forward tilted posture, the gluteal muscles of the hip joint extensors group, the gluteal muscles involved in abduction, and the gluteal muscles involved in internal rotation and abduction in the pelvis. Moderate muscle tone is also maintained continuously or intermittently. In this way, the atrophy of these muscles is suppressed, and weakening of the muscular strength can be prevented. In addition, a so-called hip-up effect can be achieved from a cosmetic point of view. Moreover, since not only the tension of the gluteus medius, the gluteus medius, and the gluteus medius, but also the tension of the pelvic floor muscles, even if the seated person H suffers from hemorrhoids, hemorrhoids, etc., they are Direct pressure from the seat can be avoided.

さらに、座板１１及び着座者Ｈの前傾姿勢を保持しようとすると、体幹後部の起立筋群、体幹前部の腹筋群、及び、脊柱から小転子に走行する腸腰筋群の互いに協調した筋緊張によって腸骨がやや前傾に保たれ、脊柱が自然な立位姿勢のように伸展する。これらにより、抗重力筋のなかでも重要な筋の一つである腸腰筋の筋力低下を防止することができる。その結果、腰椎の後彎、前彎、側彎等に起因する腰痛の予防が可能となる。また、壮年期及び老年期においては、このような抗重力筋の脆弱化を予防することにより、寝たきり症状の発生を有効に抑止することが可能となる。   Furthermore, when trying to maintain the forward leaning posture of the seat plate 11 and the seated person H, the standing muscle group of the rear trunk, the abdominal muscle group of the trunk trunk, and the iliopsoas muscle group running from the spinal column to the lesser trochanter The muscles coordinated with each other keep the iliac slightly tilted and the spine extends like a natural standing posture. Accordingly, it is possible to prevent the muscular strength of the iliopsoas muscle, which is one of the important muscles among the antigravity muscles, from being reduced. As a result, it is possible to prevent back pain caused by lumbar kyphosis, forehead, scoliosis and the like. Further, in the middle age and the old age, it is possible to effectively suppress bedridden symptoms by preventing such weakening of the anti-gravity muscle.

また、このように脊柱の生理的に適正な状態（生理的ライン）が生成されると、胸部において猫背を予防し且つ呼吸運動を楽にするような作用が生じる。加えて、
不自然な肩の緊張や頸部の前屈・後屈が抑制されるので、肩こりや頸のこりを予防することができる。さらに、生理的ラインが形成される姿勢は、眼の無駄な近点調節を防止でき、これにより、仮性近視や眼精疲労の予防に資することができる。またさらに、美容的な観点からは、バストアップの効果が得られる。In addition, when a physiologically appropriate state (physiological line) of the spinal column is generated in this way, an action that prevents the dorsum of the spine and makes breathing exercise easier in the chest occurs. in addition,
Unnatural shoulder tension and neck bend / back bend are suppressed, preventing stiff shoulders and neck stiffness. Further, the posture in which the physiological line is formed can prevent unnecessary near-point adjustment of the eye, thereby contributing to prevention of pseudomyopia and eye strain. Furthermore, from a cosmetic point of view, a bust-up effect can be obtained.

さらにまた、腹筋の適度な緊張は、筋力低下に伴う内臓下垂等の障害の発生の予防にも寄与することができる。さらに、美容的観点からすれば、ウエストを引き締める効果も得られる。   Furthermore, moderate abdominal muscle tension can also contribute to the prevention of the occurrence of disorders such as visceral sag due to muscle weakness. Furthermore, from the cosmetic point of view, the effect of tightening the waist can be obtained.

よって、着座具１及びそれを備える椅子１０，３０によれば、以上説明したような種々の効果を複合的に奏することができるので、身体に生じ得る様々な歪みや種々の障害を、従来よりも効果的且つ総合的に、しかも簡便に予防及び矯正することが可能となる。   Therefore, according to the sitting tool 1 and the chairs 10 and 30 including the seating tool, various effects as described above can be produced in combination, so that various distortions and various obstacles that may occur in the body are conventionally increased. It is possible to prevent and correct effectively, comprehensively, and simply.

また、巻きばね１４が、座板１１が静置された状態において、圧縮された状態で座板１１の底壁面と当接しているので、座板１１の前方側の部位が鉛直上向きに予め付勢されている。よって、座板１１が略水平状態へ一層復するようになるので、着座者Ｈが前傾姿勢を維持するのに必要な筋群に対する負荷が増大され、その結果、上述した種々の効果が高められる。   Further, since the winding spring 14 is in contact with the bottom wall surface of the seat plate 11 in a compressed state in a state where the seat plate 11 is stationary, the front portion of the seat plate 11 is attached in advance vertically upward. It is energized. Therefore, since the seat plate 11 is further restored to the substantially horizontal state, the load on the muscle group necessary for the seated person H to maintain the forward leaning posture is increased, and as a result, the various effects described above are enhanced. It is done.

さらに、巻きばね１５が、座板１１が静置された状態において、拡張された状態で座板１１の底壁面に固定されているので、座板１１の後方側の部位が鉛直下向きに予め付勢されている。よって、座板１１が略水平状態へ更に一層復するようになるので、着座者Ｈが前傾姿勢を維持するのに必要な筋群に対する負荷が更に増大され、その結果、上述した種々の効果がより一層高められる。   Further, since the winding spring 15 is fixed to the bottom wall surface of the seat plate 11 in an expanded state in a state where the seat plate 11 is stationary, the rear side portion of the seat plate 11 is attached in advance vertically downward. It is energized. Therefore, since the seat plate 11 is further restored to the substantially horizontal state, the load on the muscle group necessary for the seated person H to maintain the forward leaning posture is further increased. As a result, the various effects described above are achieved. Is further enhanced.

また、巻きばね１４，１５がこのように座板１１を予め付勢するように設けられているので、座板１１がそのように付勢されていない場合に比して少ない変位で着座者Ｈに対して同等の筋力負荷を与えることができる。よって、座板１１及び巻きばね１４，１５の動作が軽減されるので、繰り返し使用したときの耐久性を向上できる。   Further, since the winding springs 14 and 15 are provided in such a manner as to urge the seat plate 11 in advance, the seated person H can be displaced with less displacement than when the seat plate 11 is not so urged. It is possible to give the same muscle strength load to. Therefore, since the operation of the seat plate 11 and the winding springs 14 and 15 is reduced, durability when repeatedly used can be improved.

なお、本発明は上述した実施形態に限定されるものではなく、その要旨を変更しない限度において様々な変形が可能である。例えば、巻きばね１４，１５に替えて他のばね、ゴム等の弾性体を用いてもよく、或いは、筒状の気圧又は油圧シリンダ若しくはダンパ等のシリンダ装置を用いてもよい。さらに、巻きばね１４，１５及びその他の第１の制御部及び第２の制御部は、例えば連結されて一体に形成されていてもよい。またさらに、巻きばね１４，１５の員数及び配置も図示に限定されず、複数のものをユニット化してもよく、更に予め座板１１を付勢していなくても構わない。   In addition, this invention is not limited to embodiment mentioned above, A various deformation | transformation is possible in the limit which does not change the summary. For example, an elastic body such as another spring or rubber may be used instead of the winding springs 14 and 15, or a cylinder device such as a cylindrical air pressure or a hydraulic cylinder or a damper may be used. Further, the winding springs 14 and 15 and the other first control unit and second control unit may be connected and formed integrally, for example. Further, the number and arrangement of the winding springs 14 and 15 are not limited to those shown in the figure, and a plurality of them may be unitized, and the seat plate 11 may not be biased in advance.

さらにまた、巻きばね１４，１５のばね定数、すなわちこれらが発現する抗力は、着座者Ｈの体重、体型、筋力等に応じて適宜調節することができる。特に、後方側に配置された巻きばね１５を調節できるようにすると好ましい。この場合、巻きばね１４，１５を底板１２及び／又は座板１１に対して着脱自在に設けると交換が容易となり保守性が向上される。また、底板１２を設けずに、巻きばね１４，１５の一方端を脚体２に固定してもよい。この場合、脚体２が保持体として機能する。こうすれば、部材点数を低減できると共に、保守性を一層向上させることができる。   Furthermore, the spring constants of the winding springs 14 and 15, that is, the drag force that they develop can be appropriately adjusted according to the weight, body shape, muscle strength, etc. of the seated person H. In particular, it is preferable that the winding spring 15 arranged on the rear side can be adjusted. In this case, if the winding springs 14 and 15 are provided detachably with respect to the bottom plate 12 and / or the seat plate 11, the replacement is facilitated and the maintainability is improved. Further, one end of the winding springs 14 and 15 may be fixed to the leg body 2 without providing the bottom plate 12. In this case, the leg 2 functions as a holding body. In this way, the number of members can be reduced and the maintainability can be further improved.

さらに、背もたれ、手すり、肘掛等を設けてもよい。またさらに、凸状部１６は設けなくてもよいが、設けた方が好ましく、また、一体に延在していなくいともよく、例えば、左右の大腿部のそれぞれが当接する位置に二分して設けてもよい。加えて、座板１１を円形として椅子１０，３０を円形椅子としても構わない。   Furthermore, a backrest, a handrail, an armrest or the like may be provided. Furthermore, although the convex part 16 does not need to be provided, it is preferable to provide it, and it does not have to extend integrally. For example, the convex part 16 is divided into two positions where the left and right thighs contact each other. It may be provided. In addition, the seat plate 11 may be circular and the chairs 10 and 30 may be circular chairs.

本発明による着座機構及びそれを備える椅子は、上述した支持部と二つの制御部を備えることにより、身体に生じ得る様々な歪みや種々の障害を、従来よりも効果的且つ総合的にしかも簡便に予防及び矯正することが可能なので、身体の治療及び美容に広く利用することができる。   The seating mechanism and the chair equipped with the seating mechanism according to the present invention are provided with the above-described support part and two control parts, so that various distortions and various obstacles that may occur in the body are more effective, comprehensive, and simpler than before. Therefore, it can be widely used for body treatment and beauty.

本発明による着座機構及びそれを備える椅子の好適な一実施形態を模式的に示す斜視図である。1 is a perspective view schematically showing a preferred embodiment of a seating mechanism and a chair including the same according to the present invention. 図１に示す着座機構及び椅子の正面図である。It is a front view of the seating mechanism and chair shown in FIG. 図１に示す着座機構及び椅子の背面図である。It is a rear view of the seating mechanism and chair shown in FIG. 図１に示すIV−IV線に沿う断面図である。It is sectional drawing which follows the IV-IV line | wire shown in FIG. 本発明による着座機構及びそれを備える椅子の好適な他の一実施形態に人が腰掛けた状態を模式的に示す側面図である。It is a side view which shows typically the state where the person sat down on other suitable one Embodiment of the seating mechanism by this invention, and a chair provided with the same.

Claims (10)

保持体に設けられた支持部と、
前記支持部を中心として略鉛直方向に遊動可能に設けられた座板と、
前記支持部を挟んで設けられており、前記座板に鉛直方向の力が作用したときに該力に抗する力を該座板に印加する二つの制御部と、
を備える着座機構。A support provided on the holding body;
A seat plate provided so as to be movable in a substantially vertical direction around the support portion;
Two control units which are provided across the support unit and apply a force against the force to the seat plate when a vertical force acts on the seat plate;
A seating mechanism comprising: 前記二つの制御部は、着座方向において前記支持部よりも前方に配された第１の制御部と、着座方向において前記支持部よりも後方に配された第２の制御部と、から成る、
請求項１記載の着座機構。The two control units include a first control unit disposed in front of the support unit in the seating direction and a second control unit disposed rearward of the support unit in the seating direction.
The seating mechanism according to claim 1. 前記第１の制御部は、前記座板に鉛直上向きの抗力を印加するものであり、
前記第２の制御部は、前記座板に鉛直下向きの抗力を印加するものである、
請求項２記載の着座機構。The first control unit applies a vertically upward drag to the seat plate,
The second control unit applies a vertically downward drag to the seat plate.
The seating mechanism according to claim 2. 前記第１の制御部は、前記座板を鉛直上向きに予め付勢するように設けられたものであり、
前記第２の制御部は、前記座板を鉛直下向きに予め付勢するように設けられたものである、
請求項２又は３に記載の着座機構。The first control unit is provided to urge the seat plate vertically upward in advance,
The second control unit is provided to urge the seat plate vertically downward in advance.
The seating mechanism according to claim 2 or 3. 前記座板は、着座方向において前記支持部よりも前方に設けられた凸状部を有する、
請求項１〜４のいずれか一項に記載の着座機構。The seat plate has a convex portion provided in front of the support portion in the seating direction.
The seating mechanism according to any one of claims 1 to 4. 前記支持部は、前記座板の幅方向に亘って延在するように設けられたものである、
請求項１〜５のいずれか一項に記載の着座機構。The support portion is provided so as to extend over the width direction of the seat plate.
The seating mechanism according to any one of claims 1 to 5. 前記着座方向において前記第２の制御部よりも縁端側の前記保持部上に突設された止定部を備える、
請求項２〜６のいずれか一項に記載の着座機構。In the seating direction, provided with a stopping portion projecting on the holding portion on the edge side of the second control portion,
The seating mechanism according to any one of claims 2 to 6. 前記二つの制御部は、弾性体、及び／又は、シリンダ装置である、
請求項１〜７のいずれか一項に記載の着座機構。The two control units are an elastic body and / or a cylinder device.
The seating mechanism according to any one of claims 1 to 7. 前記支持部は、前記着座方向における位置が調節可能に設けられたものである、
請求項１〜８のいずれか一項に記載の着座機構。The support part is provided so that the position in the seating direction can be adjusted.
The seating mechanism according to any one of claims 1 to 8. 請求項１〜９のいずれか一項に記載の着座機構と、
前記着座機構が設置された脚体と、
を備える椅子。The seating mechanism according to any one of claims 1 to 9,
A leg on which the seating mechanism is installed;
A chair equipped with.
JP2006534935A 2004-09-03 2004-09-03 Seating mechanism and chair Pending JPWO2006027822A1 (en)

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