JPH0815446B2 - Flexible stackable chair - Google Patents

Flexible stackable chair

Info

Publication number
JPH0815446B2
JPH0815446B2 JP3507861A JP50786191A JPH0815446B2 JP H0815446 B2 JPH0815446 B2 JP H0815446B2 JP 3507861 A JP3507861 A JP 3507861A JP 50786191 A JP50786191 A JP 50786191A JP H0815446 B2 JPH0815446 B2 JP H0815446B2
Authority
JP
Japan
Prior art keywords
seat
support
chair
flexible
backrest
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP3507861A
Other languages
Japanese (ja)
Other versions
JPH05507632A (en
Inventor
ペリー、チャールズ・オー
Original Assignee
ペリー、チャールズ・オー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ペリー、チャールズ・オー filed Critical ペリー、チャールズ・オー
Publication of JPH05507632A publication Critical patent/JPH05507632A/en
Publication of JPH0815446B2 publication Critical patent/JPH0815446B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • 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
    • A47C3/021—Rocking chairs having elastic frames
    • A47C3/023—Rocking chairs having elastic frames made of tubular material
    • 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
    • A47C3/04—Stackable chairs; Nesting chairs
    • 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
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame

Abstract

A high density stacking flex chair is disclosed. A frame has a seat attached thereto, and a back pivotally attached thereto. The back is curved and can tilt backwards, but is limited by the frame which, through the back, has a lesser radius of curvature and is angled downward, thus providing stop action for back rotation.

Description

【発明の詳細な説明】 技術分野 本発明は、椅子、特に、使用時に背当て部をリクライ
ニングさせることができ、また、使用しないときに高密
度に積み重ねて収納することが可能な椅子に関する。TECHNICAL FIELD The present invention relates to a chair, and more particularly, to a chair that allows the backrest portion to recline when in use, and can be stacked and stored at high density when not in use.

背景技術 安価な安価な積重ね型の椅子は、当業者に公知であ
る。しかし、そのような椅子の設計は、座り心地、つま
り人間工学を考慮することなく、むしろ通常は最小の占
有空間をもって格納させることのできる、臨機使用のた
めの大量の簡易椅子を与えることを目的とする。そのよ
うな椅子は、椅子の背当て部分の撓み自在性が或る程度
制限されて、人間工学的利点を与えないことがある。BACKGROUND ART Inexpensive and inexpensive stacking chairs are known to those skilled in the art. However, the design of such a chair is intended to provide a large number of swivel chairs for occasional use, which can be stored without consideration of sitting comfort, ie ergonomics, but usually with a minimal footprint. And Such chairs may have some limited flexibility of the backrest portion of the chair, providing no ergonomic advantage.

近年、より優れた人間工学的設計が大いに注目され、
その結果、リクラインの能力が含まれて、腰部の支持を
与える、様々な設計を具現する家庭用および事務所用の
椅子が出現した。しかし、そのような人間工学的設計
は、安価な椅子を与えない。よって、人間工学的設計の
利点を安価な積重ね型椅子に組合わせることが望ましい
であろう。In recent years, much attention has been paid to better ergonomic design,
As a result, home and office chairs have emerged that embody a variety of designs that include the ability of recline to provide lumbar support. However, such an ergonomic design does not give an inexpensive chair. Therefore, it would be desirable to combine the advantages of ergonomic design with an inexpensive stackable chair.

発明の開示 座部が取付けられ、背当て部が枢動自在に取付けられ
る単一の連続フレームが設けられる、傾け自在型背当て
部を持つ高密度に積重ね可能な椅子が与えられる。背当
て部の傾けとフレームの撓みとで椅子の人間工学的調整
が得られ、フレームの撓みが背当て部を通常の垂直位置
に付勢して、積重ねを容易にし、また一様な外観を与え
る。背当て部は曲線状で、中空であり、フレームの上方
および下方曲線部分においてフレームに係合する。フレ
ームの該両部分の曲率半径は背当て部のそれよりも小さ
く、また該両部分は、垂直位置における該部分の有効水
平方向半径が実際の半径よりも小さくて、背当て部が曲
線部分に当たって止まり、椅子背当て部の前方への傾き
を制限するような下向き角度位置にある。背当て部が傾
く時、放射状運動により、半径の違いのために曲線部分
から背当て部が離れ、結局、有効半径が再び等しくな
り、背当て部が再びフレームの曲線部分に当たって止ま
って、後方への傾きを制限する傾き角度になる。DISCLOSURE OF THE INVENTION A high density stackable chair with a tiltable backrest is provided, with a single continuous frame having a seat attached and a backrest pivotally mounted. The tilting of the backrest and the flexing of the frame provide ergonomic adjustment of the chair, and the flexing of the frame biases the backrest in its normal vertical position for easy stacking and a uniform appearance. give. The back rest is curved and hollow and engages the frame at the upper and lower curved portions of the frame. The radius of curvature of both parts of the frame is smaller than that of the back rest, and both parts are such that the effective horizontal radius of the part in the vertical position is smaller than the actual radius so that the back rest hits a curved part. It rests and is in a downward angular position that limits the forward tilt of the chair backrest. When the backrest tilts, the radial movement causes the backrest to move away from the curved portion due to the difference in radius, eventually the effective radii become equal again, the backrest hits the curved portion of the frame again, stops, and moves backward. The tilt angle limits the tilt of.

本発明の原理を採用する説明的実施例を記載する以下
の詳細な説明および添付図面を参照することにより、本
発明の特徴および利点がより良く理解されるであろう。The features and advantages of the present invention may be better understood with reference to the following detailed description and the accompanying drawings, which describe illustrative embodiments that employ the principles of the invention.

図面の簡単な説明 図１は本発明によって作られた椅子である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a chair made according to the present invention.

図２は本発明によって作られた椅子の望ましい実施例
である。FIG. 2 is a preferred embodiment of a chair made in accordance with the present invention.

図３ないし図５は図１の３−３線に沿う、後方への傾
きの範囲にわたって延在する椅子を示す断面図である。3 to 5 are sectional views showing the chair extending along the range of the rearward inclination along the line 3-3 in FIG.

図６は図４の６−６線に沿う、本発明による椅子の平
面断面図である。FIG. 6 is a plan sectional view of the chair according to the present invention taken along the line 6-6 of FIG.

図７は本発明による椅子の斜視図である。 FIG. 7 is a perspective view of a chair according to the present invention.

発明の詳細な説明 ここで図１を参照すると、本発明による第一の実施例
が図示される。フレーム10、座部20および背当て部30の
３つの主要部がある。背当て部は使用者の背中に合うよ
うに曲線形であり、前方部分32と後方部分34からなり、
その各々は、取付けられた時、両部分の間に中空の内部
空間を作るように、へり33、35その他のスペーサを有す
る。DETAILED DESCRIPTION OF THE INVENTION Referring now to FIG. 1, a first embodiment according to the present invention is illustrated. There are three main parts, the frame 10, the seat 20 and the back rest 30. The backrest is curved to fit the user's back and consists of a front portion 32 and a rear portion 34,
Each has rims 33, 35 and other spacers so as to create a hollow interior space between the two parts when mounted.

フレーム10は理想的には連続構造であり、無空の棒ま
たは鋼管等から構成される。代わりに、溶接その他で連
結された部分から成ることもできる。フレーム10は、両
端に円筒形軸受け部12aを持つ背当て部30の中に包まれ
て、背当て部の中央を通って横方向に延伸して下方に傾
く上方曲線部12を有する。背当て部30は円筒形部分12a
においてフレーム10に枢動自在に取り付けられており、
一方、フレーム10は上方曲線部12の両端が存する内部空
間から外側に延伸している。この枢動取付けは前方部分
32に取付けられた軸受によって行うことができるが、プ
ラスチック成型された前方および後方部分32、34上に形
成された支承表面12bを設けることにより行うことが望
ましい。The frame 10 is ideally a continuous structure and is composed of an empty rod or a steel pipe. Alternatively, it may consist of welded or otherwise joined parts. The frame 10 has an upper curved portion 12 which is wrapped in a back support portion 30 having a cylindrical bearing portion 12a at both ends and which extends laterally through the center of the back support portion and inclines downward. The back support 30 is a cylindrical portion 12a
Is pivotally attached to the frame 10 at
On the other hand, the frame 10 extends outward from the internal space where both ends of the upper curved portion 12 exist. This pivotal mounting is the front part
This can be done with bearings mounted on 32, but preferably by providing bearing surfaces 12b formed on the plastic molded front and back portions 32,34.

フレーム10は１対の後方支持脚16を有する。後方支持
脚16は、床面に達するまで後方及び下方に延伸し、か
つ、そこから床面に沿って前方へ延伸している。つぎ
に、１対の前方支持脚18が、上方かつ後方に座部20まで
延在し、さらに後方に延在して座部20を支持し、さらに
僅かに内方に曲がってから上方に、背当て部30の中に入
り、つぎに内方に延在し、そこで枢動結合部12a、12bに
似た態様で背当て部が再び枢動自在に取付けられる。フ
レーム10は、背当て部の内部に包まれ、下方への傾き角
をもって背当て部の中に延在する下方曲線部14に接続す
る。フレーム10が床上に静止する時のフレームの対向す
る脚の間の距離d1は座部20の幅d2よりも小さく設計され
ており、従って椅子を積み重ねるときに椅子の脚が座部
を挟みつけるので積重ねが容易になる。The frame 10 has a pair of rear support legs 16. The rear support leg 16 extends rearward and downward until it reaches the floor surface, and from there extends forward along the floor surface. Next, a pair of front support legs 18 extend upward and rearward to the seat portion 20, further extend rearward to support the seat portion 20, further bend slightly inward, and then upward. It enters into the backrest 30 and then extends inwardly where the backrest is again pivotally mounted in a manner similar to the pivot joints 12a, 12b. The frame 10 is enclosed within the back rest and connects to a lower curved portion 14 which extends into the back rest with a downward tilt angle. The distance d 1 between the opposite legs of the frame 10 when the frame 10 rests on the floor is designed to be less than the width d 2 of the seat 20, so that when the chairs are stacked, the legs of the chair pinch the seat. Since it is attached, stacking becomes easy.

図２の望ましい実施例において、フレーム10の座部支
持部は座部20のへりよりも内方の位置にあり、座部の支
持とフレームの横安定を高めるために溶接支柱22によっ
て結合される。図７において、そのような横安定は１対
の安定材50、52によって与えることができる。さらに、
フレーム10への座部の取付け、取外しを容易にするため
に、座部20の下面にクリップ24が取付けられる。In the preferred embodiment of FIG. 2, the seat support of the frame 10 is located inward of the lip of the seat 20 and is joined by weld struts 22 to enhance seat support and lateral stability of the frame. . In FIG. 7, such lateral stability can be provided by a pair of stabilizers 50,52. further,
A clip 24 is attached to the lower surface of the seat 20 to facilitate the attachment and removal of the seat to the frame 10.

背当て部30は単体の成型ユニットであり、円筒部12a
において後方支持脚16に枢動係合するようにされた開口
部またはクリップ40を有する。開口部またはクリップ42
も同様に、前方支持脚18に枢動係合するようにされる。
よって、背当て部30は容易に、またしっかりとフレーム
10に取付けることができる。曲線部12、14は、後述する
ように、枢動の限界を与えるように、フレーム10に対し
て固定位置に保たれる。The back support part 30 is a single molding unit, and the cylindrical part 12a
Has an opening or clip 40 adapted to pivotally engage the rear support leg 16 at. Opening or clip 42
Is similarly adapted to pivotally engage the front support leg 18.
Therefore, the backrest 30 can be easily and firmly framed.
Can be installed on 10. Curved portions 12, 14 are held in a fixed position with respect to frame 10 to provide pivotal limits, as will be described below.

ここで図３ないし図５を参照すると、背当て部30の傾
け作用が図解される。図３のように、椅子が垂直位置に
ある時、フレーム10の後方支持脚16は、背当て部30を前
方に保持する自然のバネ作用を与えるように、前傾角を
有する。Referring now to FIGS. 3-5, the tilting action of the back rest 30 is illustrated. As in FIG. 3, when the chair is in a vertical position, the rear support legs 16 of the frame 10 have a forward tilting angle to provide a natural spring action to hold the back rest 30 forward.

フレーム10の曲線部12、14は平行であり、これらの曲
線部は共に、背当て部を横断する面（背当て部の上下方
向に直交する面であり、図３における水平面）と22.5゜
の角度をなし、外方（図３において右側）かつ下方（床
側）に延伸する。前記背当て部横断面から22.5゜傾いた
面における両曲線部12、14の曲率半径は、背当て部横断
面における背当て部の曲率半径よりも小さい。しかし、
背当て部横断面へ投影した曲線部12、14の曲率半径（有
効半径）は、背当て部30の曲率半径に等しい。それ故、
曲線部12、14の有効半径が背当て部30の半径に等しい結
果として、背当て部30の前方部分32の外側は箇所36、37
において曲線部12、14に接触している（図３参照）。The curved portions 12 and 14 of the frame 10 are parallel to each other, and these curved portions are both a plane that intersects the backrest portion (a plane that is orthogonal to the vertical direction of the backrest portion and is a horizontal plane in FIG. 3) and 22.5 ° Make an angle and stretch outward (right side in FIG. 3) and downward (floor side). The radii of curvature of the curved portions 12 and 14 on the surface inclined by 22.5 ° from the cross section of the back rest part are smaller than the radius of curvature of the back rest part in the cross section of the back rest part. But,
The radius of curvature (effective radius) of the curved portions 12 and 14 projected onto the cross section of the backrest portion is equal to the radius of curvature of the backrest portion 30. Therefore,
As a result of the effective radius of the curved portions 12, 14 being equal to the radius of the backrest 30, the outside of the front portion 32 of the backrest 30 is located at points 36, 37.
It touches the curved portions 12 and 14 at (see FIG. 3).

使用者が椅子にもたれ掛ることにより前方部分32が上
方曲線部上の軸50回りに枢動すると、前方部分の上半分
は後方に回転し、下半分は前方に回転する。これにより
下方曲線部14が前方へ回転して座部20が持ち上がること
にも注目されたい。背当て部横断面は、水平面に対して
おおよそ22.5゜傾き、曲線部12、14の傾きと一致してい
る（この状態が図４に示されている）。上述したように
両曲線部の曲率半径は背当て部30の曲率半径よりも小さ
いので、図４に示す状態において、背当て部30は曲線部
の手前の方へ浮き上がっている。When the user leans against the chair and pivots the front portion 32 about the axis 50 on the upper curve, the upper half of the front portion rotates rearward and the lower half rotates forward. Note also that this causes the lower curved portion 14 to rotate forward and lift the seat 20. The cross section of the back rest portion is inclined approximately 22.5 ° with respect to the horizontal plane, which corresponds to the inclination of the curved portions 12 and 14 (this state is shown in FIG. 4). As described above, the radius of curvature of both curved portions is smaller than the radius of curvature of the back support portion 30, so that in the state shown in FIG. 4, the back support portion 30 floats up toward the front of the curved portion.

図５に示すように、背当て部が更に傾くと、背当て部
は、背当て部上の点であって下方に回転してくる点38、
39において曲線部に再度当接する。背当て部は水平面に
対しておおよそ45゜傾いており（即ち、前記背当て部横
断面は曲線部に対しておおよそ22.5゜傾いている）、こ
こでの背当て部の有効半径は曲線部の半径に再び等しく
なる。点38、39が湾曲部12、14と接するように背当て部
が傾斜した位置がリクライニングの位置の限度であり、
背当て部は、このリクライニング限度位置において湾曲
部12に当接して、これ以上の回転傾斜が制限されてい
る。As shown in FIG. 5, when the back rest part is further tilted, the back rest part is a point on the back rest part that rotates downward 38.
At 39, contact the curved section again. The back rest is inclined approximately 45 ° with respect to the horizontal plane (that is, the cross section of the back rest is inclined approximately 22.5 ° with respect to the curved portion), and the effective radius of the back rest here is that of the curved portion. Again equal to the radius. The position where the back rest is inclined so that the points 38 and 39 come into contact with the curved portions 12 and 14 is the limit of the reclining position,
The back support portion abuts the bending portion 12 at the reclining limit position, and further rotation inclination is limited.

曲線部12、14のフレーム構造全体に対する関係は図６
において更に明白に示されており、フレームの１部分の
直線状の円筒部12aが支承領域となっている。The relationship between the curved portions 12 and 14 with respect to the entire frame structure is shown in FIG.
Is more clearly shown in FIG. 1 and the linear cylindrical portion 12a of one part of the frame is the bearing area.

本発明が前記実施例の特性によって制限されることは
意図されず、添付の請求の範囲によって定義されること
は当然である。It is to be understood that the present invention is not intended to be limited by the characteristics of the above embodiments, but is defined by the appended claims.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】（ａ）使用者が座る座部と、（ｂ）前記座
部にほぼ垂直に設けられ使用者の背中が当たる背当て部
であって、上端と下端とを備え、前記上端と下端との間
に上部領域と下部領域を有する背当て部と、（ｃ）前記
座部及び前記背当て部を支持する可撓性のフレームとを
有する椅子であって、 前記可撓フレームは、 （ｉ） 前記座部の両側に位置する１対の支持脚であっ
て、各々の支持脚が、（１）前記背当て部上端の直下に
設けた前記上部領域において枢動部に枢動自在に取り付
けられ可撓性かつ復元性を有する後脚部と、（２）床面
に沿って延伸する底脚部と、（３）前記座部を支持する
ため前記座部の前部に向かって上方へ延伸する前脚部と
を有する支持脚と、 （ii） 前記座部の後部を前記座部よりも高い位置にお
いて前記背当て部下部領域に枢動自在に連結する枢動連
結部とを含んでなり、 前記使用者の背中が前記背当て部に当たったときに、
前記可撓フレームと前記枢動連結部とが協働して、前記
背当て部を後方に回転傾斜させながら、前記背当て部の
復元力に抗して前記背当て部下端を前方に押し出して前
記背当て部が前記使用者の背中を支持するレバーとして
作用するように設けた、可撓性椅子。1. A seat portion on which (a) a user sits, and (b) a back rest portion which is provided substantially perpendicular to the seat portion and hits the back of the user, and which has an upper end and a lower end, and the upper end. A chair having a backrest having an upper region and a lower region between a lower end and a lower end, and (c) a flexible frame supporting the seat and the backrest, wherein the flexible frame is (I) A pair of support legs located on both sides of the seat portion, wherein each support leg is (1) pivoted to a pivot portion in the upper region provided directly below the upper end of the back support portion. Flexible and resilient rear legs that are freely attached, (2) Bottom legs that extend along the floor surface, and (3) Facing the front of the seat to support the seat. Support legs each having a front leg portion extending upward and upward, and (ii) the rear portion of the seat portion at a position higher than the seat portion, And a pivotal connecting portion pivotally connected to the lower portion of the pad portion, when the back of the user hits the back pad portion,
The flexible frame and the pivotal connecting portion cooperate to push the lower end of the back support portion forward against the restoring force of the back support portion while rotating and tilting the back support portion backward. A flexible chair provided such that the back support portion acts as a lever for supporting the back of the user. 【請求項２】請求項１の可撓性椅子であって、前記背当
て部の前記上部領域における前記枢動部及び前記下部領
域における前記枢動連結部は、前記背当て部を横断する
方向に延伸しかつ前記背当て部の前記回転傾斜を所定の
リクライニング限度位置までに制限する湾曲支持部（1
2、14）を含んでなる椅子。2. The flexible chair according to claim 1, wherein the pivot portion in the upper region and the pivot connection portion in the lower region of the back rest portion extend in a direction traversing the back rest portion. A curved support portion (1) extending to the back and limiting the rotational inclination of the back support portion to a predetermined reclining limit position.
A chair comprising 2, 14).
JP3507861A 1990-04-10 1991-04-03 Flexible stackable chair Expired - Lifetime JPH0815446B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US50671690A 1990-04-10 1990-04-10
US506,716 1990-04-10
PCT/US1991/002305 WO1991015139A1 (en) 1990-04-10 1991-04-03 High density stacking flex chair

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP9103917A Division JP3065274B2 (en) 1990-04-10 1997-04-07 Flexible stackable chair

Publications (2)

Publication Number Publication Date
JPH05507632A JPH05507632A (en) 1993-11-04
JPH0815446B2 true JPH0815446B2 (en) 1996-02-21

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
JP3507861A Expired - Lifetime JPH0815446B2 (en) 1990-04-10 1991-04-03 Flexible stackable chair
JP9103917A Expired - Lifetime JP3065274B2 (en) 1990-04-10 1997-04-07 Flexible stackable chair

Family Applications After (1)

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JP9103917A Expired - Lifetime JP3065274B2 (en) 1990-04-10 1997-04-07 Flexible stackable chair

Country Status (12)

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US (1) USRE36335E (en)
EP (1) EP0539377B1 (en)
JP (2) JPH0815446B2 (en)
KR (1) KR0182297B1 (en)
AT (1) ATE167369T1 (en)
AU (1) AU651971B2 (en)
CA (1) CA2080248C (en)
DE (1) DE69129628T2 (en)
ES (1) ES2118081T3 (en)
IL (1) IL97762A (en)
NZ (1) NZ237726A (en)
WO (1) WO1991015139A1 (en)

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Also Published As

Publication number Publication date
AU7691691A (en) 1991-10-30
CA2080248C (en) 1996-10-29
ES2118081T3 (en) 1998-09-16
AU651971B2 (en) 1994-08-11
EP0539377A4 (en) 1993-06-16
WO1991015139A1 (en) 1991-10-17
KR0182297B1 (en) 1999-05-01
IL97762A (en) 1994-08-26
USRE36335E (en) 1999-10-12
JP3065274B2 (en) 2000-07-17
CA2080248A1 (en) 1991-10-11
NZ237726A (en) 1994-08-26
DE69129628D1 (en) 1998-07-23
JPH1033294A (en) 1998-02-10
EP0539377B1 (en) 1998-06-17
DE69129628T2 (en) 1998-10-15
EP0539377A1 (en) 1993-05-05
JPH05507632A (en) 1993-11-04
ATE167369T1 (en) 1998-07-15
IL97762A0 (en) 1992-06-21

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