JP2005058719A

JP2005058719A - Swinging chair

Info

Publication number: JP2005058719A
Application number: JP2003332442A
Authority: JP
Inventors: Motonobu Takano; 元伸高野; Tsutomu Oyanagi; 強大柳; Ryoichi Kasai; 亮一葛西
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-19
Filing date: 2003-08-19
Publication date: 2005-03-10

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair where a seat part is swung by moving of a fulcrum by forming a projecting part between the seat part and a receiving part. <P>SOLUTION: The chair has a mechanism where the projecting part 4 is formed between the seat part 3 and the receiving part 2 and connected by elastic bodies 5. Without regard to the material and the surface state of a floor, only inclining of the upper half of the body of a sitting person swings the chair smoothly with omnidirectional moving of the fulcrum. This chair is swung only by inclining the upper half of the body without swinging the body remarkably as against a rocking chair. Since the seat part makes neither see-saw movement consisting of only inclination by one fulcrum nor precession of the precession like a top but smooth swinging, a burden is not put on the lower back and buttocks, thereby the person can keep sitting for a long period. In addition, the person obtains peacefulness by repeating swinging, and congestion and a lower back pain are prevented effectively by moving of the body and reduction of pressure by the weight of the body. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は椅子の座部または受部が凸部凸面上を支点移動し、弾性体で緩衝しつつ揺動する機構に関するものである。The present invention relates to a mechanism in which a seat portion or a receiving portion of a chair moves on a convex surface of a convex portion and swings while buffering with an elastic body.

揺動する椅子としては、床上で脚アーチが前後に支点移動するロッキングチェアがあった。また、座部が動くものとして、座部下の一支点を中心にシーソーもしくは歳差運動するものも考えられていた（実案文献１）。As a swinging chair, there was a rocking chair in which a leg arch moves back and forth on the floor. Moreover, as a thing which a seat part moves, the thing which carries out seesaw or precession movement centering on one fulcrum under a seat part was also considered (design document 1).

Draft literature

実開昭和４８−２２６０６Showa era 48-22606

ロッキングチェアは、設置する床の素材や表面状態の影響を受け、例えば畳や絨緞の上では揺らしにくい欠点があった。また、椅子全体が一方向（前後）揺動のみであり、揺らすためには大きく全身を振る必要があるため、長時間の使用では腰部、臀部に疲労感が残った。また、ロッキングチェアはその脚の大きさから接地面積を広くとる必要があるという欠点もあった。
また、座部を動かす方法として、座部下の一支点で受ける構造が考えられたが、座部の動きは傾くだけのシーソー運動もしくはコマのような歳差運動しか得られなかった。The rocking chair is affected by the material and surface condition of the floor to be installed, and has a drawback that it is difficult to swing on, for example, a tatami mat or a rug. In addition, since the entire chair can only swing in one direction (back and forth), and it is necessary to shake the whole body greatly in order to swing, the feeling of fatigue remained in the waist and buttocks when used for a long time. In addition, the rocking chair has a drawback that it requires a large ground contact area due to the size of its legs.
Also, as a method of moving the seat, a structure received at one fulcrum under the seat was considered, but the motion of the seat was only a seesaw motion that only tilted or a precession motion like a top.

（請求項１に記載した発明の構成）
図１に示すように、本発明の椅子は、脚（１）に受部（２）を取りつけ、受部と座部（３）の間に凸部（４）を設け、受部と座部を弾性体（５）で結合する機構により、床の状態に影響されない支点移動かつ全方向の揺動が得られるようになった。
凸部の頂上部は、座部とその接合部材および着座者の総重量の重心、すなわち使用者が座った状態で、水平を保つ位置に設ければよい。
凸部の凸面がゆるやかで低ければ小さな揺動となり、凸面が鋭く高くなれば大きな揺動となり、使用者の目的に応じ、揺動量を調整することもできる。また、凸面が球面であれば単純な揺動となり、放物面や楕円面など変則的な凸面や２次曲面、同一視可能多面体を設ければ、より複雑な揺動が得られる。
凸部の材料として、木材、金属、セラミック、プラスチックなどが利用できる。
また凸部、凹部は座部、受部と一体でもよい。(Structure of the invention described in claim 1)
As shown in FIG. 1, the chair of this invention attaches a receiving part (2) to a leg (1), provides a convex part (4) between a receiving part and a seat part (3), and receives a receiving part and a seat part. By means of a mechanism that couples the two with an elastic body (5), fulcrum movement and swinging in all directions can be obtained without being affected by the state of the floor.
What is necessary is just to provide the top part of a convex part in the position which keeps a level with the gravity center of the seat part, its joining member, and the seated person's total weight, ie, the state where the user sat down.
If the convex surface of the convex part is gentle and low, the rocking is small, and if the convex surface is sharp and high, the rocking is large, and the rocking amount can be adjusted according to the purpose of the user. Further, if the convex surface is a spherical surface, the swing is simple, and if an irregular convex surface such as a paraboloid or an ellipsoid, a quadratic curved surface, or a polyhedron that can be identified is provided, a more complex swing can be obtained.
Wood, metal, ceramic, plastic, etc. can be used as the material of the convex part.
The convex portion and the concave portion may be integrated with the seat portion and the receiving portion.

（請求項３に記載した発明の構成）
図７のように、凸部は座部、受部両向かい面に２つ設けると、より変化のある揺動を得られる。(Structure of the invention described in claim 3)
As shown in FIG. 7, if two convex portions are provided on the opposite surfaces of the seat portion and the receiving portion, more varied swing can be obtained.

（請求項４に記載した発明の構成）
図８のように、その１つは凸部よりゆるやかな曲面の凹部で受け、頂上部の位置の安定化を得ることも可能である。(Structure of the invention described in claim 4)
As shown in FIG. 8, one of them can be received by a concave portion having a curved surface that is gentler than the convex portion, and the top position can be stabilized.

（請求項５および６に記載した発明の構成）
弾性体としては図３のように単独または複数のコイル、板バネなどの各種のバネや図４のようにゴ厶、スポンジなどエラストマー材も利用できる。(Structure of the invention described in claims 5 and 6)
As an elastic body, various kinds of springs such as single or plural coils and leaf springs as shown in FIG. 3 and elastomer materials such as iron and sponge as shown in FIG. 4 can be used.

座部と受部の間に凸部を設け支点移動により座部の揺動をもたらす本発明の椅子は、ロッキングチェアのように大きく身体を振らずに、上半身の傾きだけで揺れ、また、座部が一支点による傾きのみのシーソー運動もしくはコマのような歳差運動でなく、滑らかな揺動のため腰部および臀部の負担がなく、長時間座っていることができる。
さらに、揺動を繰り返すことにより使用者は、やすらぎを得られると同時に、身体の動きと、体重圧迫の軽減により鬱血や腰痛の防止にも効果があった。The chair of the present invention that provides a convex portion between the seat portion and the receiving portion and causes the swing of the seat portion by moving the fulcrum, swings only by tilting the upper body without shaking the body as much as the rocking chair. The head is not a seesaw movement with only one tilt at a fulcrum or a precession movement like a top, but because of the smooth rocking, there is no burden on the waist and buttocks and can sit for a long time.
Furthermore, the user can obtain peace of mind by repeating the swinging, and at the same time, it is effective in preventing congestion and low back pain by reducing body movement and weight compression.

図２に示すように椅子の座部と受部の間に、少なくとも頂上部がドーム状の凸部を設けることにより、床の素材や柔らかさなどの状態に影響を受けず揺動し、一方向に揺らすことも全周に揺動することも可能となった。
凸部の頂上部は使用者が着座したときの座部およびその接合部材と着座者全体の重心下の中央領域になるように置くと、より安定し、全方向に均等に揺動しやすくなる。
着座者が上半身を傾けると支点は凸部頂上から凸面外周に移動し、凸部外側の弾性体の伸縮と緩衝して滑らかな揺動を得ることができる。
弾性体は座部と受部を結合するとともに、揺動を緩衝し使用者が座った時、揺動時の全体の重心と凸部頂上とのズレを補正する効果がある。
この椅子は図５に例示するように、座部に背部、アームの他、ヘッドレスト、座部クッションや背部のクッション、足置き、リクライニング機構等を接合してもよい。
そして、これらのものは、図６に示すように受部に取り付ければ座部のみ揺動させることもできる。
さらに、座部または受部にベアリング等使用した水平回転機構を付け、着座者が方向回転したり、脚に上下調整機構を付け、座部の高さ調整をすることもできる。また、脚にキャスターを付け移動可能にしたり、脚のないものは揺動座椅子としても応用できる。揺動が不要のときは、座部と受部間にスペーサー等のストッパー機構を設け、固定椅子として利用することもできる。As shown in FIG. 2, by providing a dome-shaped convex portion at least at the top between the seat portion and the receiving portion of the chair, it swings without being affected by the state of the floor material or softness, and the like. It was possible to swing in the direction and swing all around.
If the top of the convex part is placed so that it is in the central area under the center of gravity of the seat and its joint member when the user is seated and the seated person as a whole, it becomes more stable and easier to swing evenly in all directions .
When the seated person inclines the upper body, the fulcrum moves from the top of the convex portion to the outer periphery of the convex surface, and the elastic body outside the convex portion can be stretched and buffered to obtain a smooth swing.
The elastic body combines the seat portion and the receiving portion, and has an effect of correcting the deviation between the entire center of gravity and the top of the convex portion when the user sits while buffering the swing and sitting down.
As illustrated in FIG. 5, the chair may be joined to the seat portion with a headrest, a seat cushion, a back cushion, a footrest, a reclining mechanism, and the like in addition to the back and arms.
And if these things are attached to a receiving part as shown in FIG. 6, only a seat part can also be rock | fluctuated.
Further, a horizontal rotation mechanism using a bearing or the like can be attached to the seat portion or the receiving portion so that the seated person can rotate the direction, or a vertical adjustment mechanism can be attached to the leg to adjust the height of the seat portion. In addition, casters can be attached to the legs for movement, and those without legs can be applied as swing seat chairs. When swinging is not required, a stopper mechanism such as a spacer may be provided between the seat and the receiving part to be used as a fixed chair.

本発明の椅子は、長時間の着座と使用者のリラクゼーションに最適なので、リビング用に限らず、事務用や劇場用等あるいは、車椅子、乗り物用の椅子等にも応用できる。Since the chair of the present invention is optimal for long-time sitting and user relaxation, it can be applied not only to the living room but also to office use, theater use, wheelchairs, vehicle chairs, and the like.

本発明の椅子の平面図と断面図である（弾性体は断面図を表さない）。It is the top view and sectional drawing of the chair of this invention (an elastic body does not represent sectional drawing). 本発明の揺動時の正面図と側面図である。It is the front view at the time of rocking | fluctuation of this invention, and a side view. 本発明の弾性体バネ使用例の断面図である。It is sectional drawing of the usage example of the elastic body spring of this invention. 本発明の弾性体エラストマー材使用例の断面図である。It is sectional drawing of the usage example of the elastic body elastomer material of this invention. 本発明の実施例の側面図である。It is a side view of the Example of this invention. 本発明の座部のみの揺動の正面図である。It is a front view of rocking | fluctuation only of the seat part of this invention. 本発明の凸部と凸部の向かい合わせ断面図である。FIG. 3 is a cross-sectional view of a convex portion and a convex portion facing each other according to the present invention. 本発明の凸部と凹部の向かい合わせ断面図である。FIG. 3 is a cross-sectional view of a convex portion and a concave portion facing each other according to the present invention.

Explanation of symbols

（１）は脚
（２）は受部
（３）は座部
（４）は凸部
（５）は弾性体（複数バネの例）
（６）は凹部(1) Leg (2) Receiving part (3) Seat (4) Convex part (5) Elastic body (example of multiple springs)
(6) is a recess

Claims

(A) A convex part (4) is provided on one of the lower surface of the seat (3) or the upper surface of the receiving part (2).
(B) The top of the convex portion is provided so as to be a central region below the center of gravity of the seat portion (3) and the member to be joined to the seat portion and the total weight of the seated person.
(C) The receiving part (2) and the seat part (3) are coupled by the elastic body (5).
A swing chair constructed as described above.

2. The swing chair according to claim 1, wherein the legs (1) are attached to the receiving part (2).

The swinging chair according to claim 1, wherein a convex portion (4) is provided on one of the lower surface of the seat portion (3) or the upper surface of the receiving portion (2), and a convex portion is provided on the other side.

The swinging chair according to claim 1, wherein a convex portion (4) is provided on one of the lower surface of the seat portion (3) or the upper surface of the receiving portion (2), and a concave portion (6) that is looser than the convex portion is provided on the other side.

2. The swing chair according to claim 1, wherein a spring material is used as the elastic body.

2. The swing chair according to claim 1, wherein an elastomer material is used as the elastic body.