EP0136374B1 - Chaise avec siège et dossier à inclinaison réglable - Google Patents

Chaise avec siège et dossier à inclinaison réglable Download PDF

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Publication number
EP0136374B1
EP0136374B1 EP83111332A EP83111332A EP0136374B1 EP 0136374 B1 EP0136374 B1 EP 0136374B1 EP 83111332 A EP83111332 A EP 83111332A EP 83111332 A EP83111332 A EP 83111332A EP 0136374 B1 EP0136374 B1 EP 0136374B1
Authority
EP
European Patent Office
Prior art keywords
armrest
chair
bearing
seat portion
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
Application number
EP83111332A
Other languages
German (de)
English (en)
Other versions
EP0136374A3 (fr
EP0136374A2 (fr
Inventor
Hermann Locher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giroflex Entwicklungs AG
Original Assignee
Giroflex Entwicklungs AG
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 Giroflex Entwicklungs AG filed Critical Giroflex Entwicklungs AG
Priority to AT83111332T priority Critical patent/ATE27763T1/de
Publication of EP0136374A2 publication Critical patent/EP0136374A2/fr
Publication of EP0136374A3 publication Critical patent/EP0136374A3/xx
Application granted granted Critical
Publication of EP0136374B1 publication Critical patent/EP0136374B1/fr
Expired legal-status Critical Current

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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
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03283—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with fluid springs
    • 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
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs

Definitions

  • the invention relates to a chair with a bearing part, on which a seat part is supported by a joint and a backrest part having a backrest and a backrest lever by the backrest lever in a further joint, one of the joints being a thrust swivel joint and seat part and backrest part a swivel joint are coupled to each other, stand under the action of at least one spring element and can be tilted into different positions, the seat part and backrest part executing a relative movement to one another which is superimposed on their pivoting movement when they change to another position.
  • a chair according to the preamble of claim 1 is known from WO-A-8 300 610 (Fig. 1).
  • the chair in which both the seat part and the backrest part can be tilted are known in various designs. On the one hand, these allow the user to take up a work position in which the backrest is approximately vertical and supports the user in the back, and on the other hand to take a rest position.
  • the chair in this case has a seat part and a backrest part which are coupled to one another and can be inclined relative to a bearing part.
  • the bearing part is usually designed as a base on which the seat part and the backrest part are pivotably mounted.
  • the backrest which is displaceable relative to the backrest part and controlled by the additional linkage, is a construction which is produced from a relatively large number of parts which have to be machined correspondingly precisely.
  • the invention comes in, which is based on the object of designing a chair of the type described at the outset in such a way that the “pull-out effect is avoided without requiring more parts than is necessary for the known simple design described at the outset.
  • This object is achieved according to the invention in that the seat part has an extension part which extends beyond the swivel joint against the backrest and the backrest lever has an extension arm connecting the backrest to the swivel joint.
  • Fig. 1 shows the kinematic equivalent image of a chair without a base frame, the latter being replaced by two fixed bearing points 1, 2.
  • a seat part 3 is mounted by means of a thrust swivel 4.
  • a backrest part 6 is mounted by means of a swivel joint 5.
  • the backrest part 6 is composed of a backrest 7 and a backrest lever 8, the backrest lever 8 being coupled to the seat part 3 by means of a swivel joint 9.
  • the seat part 3 has an extension part 10 which extends from the joint 9 to the area of the backrest 7.
  • the backrest lever 8 has an extension arm 11 which extends from the joint 9 against the backrest 7 in an analogous manner to the extension part 10 and carries it.
  • the extended position of the individual parts shown in FIG. 1 corresponds to the working position, ie the backrest 7 assumes an approximately vertical position to support the back of the user. So that this position is assumed automatically, the free end 12 of the extension part 10 with the backrest 7 by a spring element 13, for. B. a mechanical compression spring element or a gas pressure spring connected.
  • a spring element 13 for. B. a mechanical compression spring element or a gas pressure spring connected.
  • the arrangement of one or more spring elements 13 need not lie exclusively in the area of the backrest 7.
  • the seat part 3 and the backrest part 6 can also be supported in a different way by the spring element or the spring elements 13, for. B. in that one end of the suspension is supported on the base and the other end acts either on the backrest part 6 or the seat part 3. This arrangement is appropriately made so that it does not adversely affect the appearance of the chair becomes.
  • FIG. 2-4 shows the constructive solution of the kinematic substitute image according to FIG. 1, the same reference numbers as in FIG. 1 being used for the same parts.
  • the two fixed bearing points 1, 2 are replaced by a bearing part 20, each having a bearing leg 22 arranged on both sides of the plane of symmetry 21 of the chair, which is supported by a cross strut 23 on a bearing head 24 which with a vertically located pivot shaft 25 is connected.
  • the bearing part 20 can, for example, be part of a base frame (not shown), the center column of which is supported on a base and is the mounting for the pivot shaft 25.
  • a back portion 27, z. B. a back cushion shown in dash-dot lines.
  • the parts 26, 27 make the movements of the corresponding parts 3, 6.
  • the seat part 3 is a frame, see FIG. 4, which is composed of two hollow profile legs 30 arranged symmetrically to the plane of symmetry 21 of the chair, which are connected to one another by a cross member 31.
  • the hollow profile legs 30 are formed from two nested U-profiles 32, 33, see FIG. 3, the lower profile 33 forming a recess 34, into each of which a backrest lever 8 fits.
  • Two backrest struts 35 adjoin the two backrest levers 8, which together with a backrest cross-member 36 connecting the two backrest struts 35 and the backrest levers 8 form the frame-shaped backrest 7.
  • a pair of webs 37, 38 is fastened, the webs of which have bores for receiving bolts with which the spring element 13 is held at its ends.
  • the design of the chair shown in Fig. 2-4 is not only a simple one. but also represents a space-saving solution. since the backrest levers 8 are at least partially within the hollow profile legs 30 of the seat part 3. 2, the rest position of the chair is also shown in dashed lines, the unequal lowering lengths A, a of the hollow profile legs 30 and the backrest lever 8 also being recognizable.
  • the embodiment of the chair shown in FIGS. 2-4 has spaced hollow profile legs 30 and backrest levers 8. If this distance is now made smaller and smaller, an embodiment is also conceivable in which the hollow profile legs 30 and the backrest levers 8 each merge into a single part; if necessary, recesses would have to be provided for the bearing head 24 in the seat part leg and for the spring element 13 in the backrest part 6.
  • the seat section 26 and the back section 27 can be supported on this one-leg construction without difficulty.

Claims (9)

1. Chaise comportant une base (1, 2, 20) sur laquelle prennent appui une partie assise (3). par une articulation (4), et une partie dossier (6) comprenant un dossier (7) et un levier de dossier (8), par le levier de dossier (8) dans une autre articulation (5), l'une des articulations (4, 5) étant une articulation à translation et à rotation et la partie assise (3) et la partie dossier (6) étant accouplées l'une à l'autre par une articulation à rotation (9) avec intervention d'au moins un élément élastique (13) et pouvant être inclinées dans différentes positions et la partie assise (3) et la partie dossier (6) effectuant l'une par rapport à l'autre, pour le passage dans une autre position. un .mouvement relatif superposé à leur mouvement de pivotement, caractérisée en ce que la partie assise (3) comporte un prolongement (10) qui s'étend au-delà de l'articulation à-rotation (9) vers le dossier (7) et que le levier de dossier (8) comporte un bras de prolongement (11) reliant le dossier (7) à l'articulation à rotation (9).
2. Chaise selon, la revendication 1, caractérisée en ce que l'élément élastique (13), constitué par exemple par un ressort à gaz sous pression, prend appui à ses extrémités sur le dossier (7) et sur l'extrémité libre (12) du prolongement (10) de la partie assise (3).
3. Chaise selon l'une des revendications 1 ou 2, caractérisée en ce que l'élément élastique (13) prend appui à l'une de ses extrémités sur la partie assise (3) ou sur la partie dossier (6) et, à son autre extrémité, sur la base (1, 2, 20).
4. Chaise selon la revendication 1, caractérisée en ce que l'élément élastique (13) est une barre de torsion incorporée aux articulations (4, 5).
5. Chaise selon la revendication 1, caractérisée en ce que la partie assise (3) comporte au moins une branche de profil creux (30) présentant, du côté de la base et du côté du dossier, des évidements (34, 39).
6. Chaise selon la revendication 5, caractérisée en ce que la partie assise (3) est un cadre qui est constitué par deux branches de profil creux (30) - situées à une certaine distance l'une de l'autre et reliées, à leur extrémité située du côté du dossier, par une traverse (31), tandis que la partie dossier (6) est un cadre correspondant qui comporte deux leviers de dossier (8) qui s'engagent exactement dans les évidements (34, 39) des branches de profil creux (30) et des barres de dossier (35) ainsi qu'une traverse de dossier (36) placée au-dessus de la traverse (31).
7. Chaise selon la revendication 6, caractérisée en ce que le ou les éléments élastiques (13) prennent appui sur la traverse (31) et sur la traverse de dossier (36).
8. Chaise selon l'une des revendications 6 ou 7. caractérisée en ce que la base (20) comporte, de chaque côté du plan de symétrie (21) de la chaise, une branche de base (22) pour l'appui de la partie assise (3) et de la partie dossier (6), les branches de base prenant appui, de manière à pouvoir se soulever ou s'abaisser, par l'intermédiaire d'une traverse (23), sur une tête de support (24) montée sur palier de manière à pouvoir tourner.
9. Chaise selon la revendication 8, caractérisée en ce que le palier de support intercalé entre la partie assise (3) et la branche de base (22) est une articulation à translation et à rotation (4).
EP83111332A 1983-10-05 1983-11-12 Chaise avec siège et dossier à inclinaison réglable Expired EP0136374B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83111332T ATE27763T1 (de) 1983-10-05 1983-11-12 Stuhl mit neigbarem sitz- und lehnenteil.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5418/83 1983-10-05
CH541883 1983-10-05

Publications (3)

Publication Number Publication Date
EP0136374A2 EP0136374A2 (fr) 1985-04-10
EP0136374A3 EP0136374A3 (fr) 1985-06-12
EP0136374B1 true EP0136374B1 (fr) 1987-06-16

Family

ID=4293248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111332A Expired EP0136374B1 (fr) 1983-10-05 1983-11-12 Chaise avec siège et dossier à inclinaison réglable

Country Status (7)

Country Link
US (1) US4668012A (fr)
EP (1) EP0136374B1 (fr)
JP (1) JPS6077712A (fr)
AT (1) ATE27763T1 (fr)
CA (1) CA1237973A (fr)
DE (1) DE3372059D1 (fr)
ZA (1) ZA843867B (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589555B1 (fr) * 1985-11-06 1989-11-10 Gaz De France Bruleur a gaz a air souffle
DE3608718A1 (de) * 1986-03-15 1987-09-17 Drabert Soehne Sitzmoebel
US4776633A (en) * 1986-04-10 1988-10-11 Steelcase Inc. Integrated chair and control
US5567012A (en) * 1986-04-10 1996-10-22 Steelcase, Inc. Chair control
DE8617738U1 (fr) * 1986-07-03 1988-03-10 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De
CH672882A5 (fr) * 1987-06-09 1990-01-15 Syntech Sa
DE3838999A1 (de) * 1988-11-18 1990-05-23 Roeder Gmbh Stuhl, insbesondere arbeits- oder buerostuhl
US4979778A (en) * 1989-01-17 1990-12-25 Brayton International, Inc. Synchrotilt chair
DE3916474A1 (de) * 1989-05-20 1990-11-22 Roeder Soehne Sitzmoebelfab Stuhl, insbesondere arbeits- oder buerostuhl
US5203853A (en) * 1991-09-18 1993-04-20 Herman Miller, Inc. Locking chair tilt mechanism with torsion bar
EP0856269B1 (fr) * 1992-06-15 2005-08-31 Herman Miller, Inc. Tissu exposé pour siège et procédé de fabrication d'une chaise avec un tel tissu
IL103477A0 (en) * 1992-10-20 1993-03-15 Paltechnica Nitzanim Office and like chairs
US5765914A (en) * 1995-06-07 1998-06-16 Herman Miller, Inc. Chair with a tilt control mechanism
WO2001060207A1 (fr) * 2000-02-18 2001-08-23 Sugatsune Kogyo Co., Ltd. Siege a dossier et dispositif amortisseur rotatif
WO2002032264A1 (fr) * 2000-10-16 2002-04-25 Kokuyo Co., Ltd. Chaise
DE10122946C1 (de) * 2001-05-11 2003-01-30 Armin Sander Stuhl, insbesondere Bürostuhl
US7040703B2 (en) * 2002-03-29 2006-05-09 Garrex Llc Health chair a dynamically balanced task chair
US7625046B2 (en) * 2002-03-29 2009-12-01 Garrex Llc Task chair
WO2005006917A2 (fr) * 2003-07-09 2005-01-27 Sanchez Gary L Fauteuil de bureau
CN102772051B (zh) 2007-01-29 2016-05-18 赫尔曼米勒有限公司 座位结构及其使用方法
CN106455821A (zh) 2014-04-17 2017-02-22 Hni技术公司 椅子和椅子控制组件、系统和方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2335586A1 (de) * 1973-01-29 1975-01-30 Fritz Kerstholt Sitz- und/oder liegemoebel mit bewegbarem rueckenteil
US4143910A (en) * 1977-09-12 1979-03-13 Klaus Geffers Chair having synchronously coupled tiltable seat and back rest
DE7928353U1 (de) * 1979-10-05 1980-04-10 Drabert Soehne Minden (Westf.), 4950 Minden Stuhl mit gewichtsveraenderlicher gasfederfunktion
DE3152945D2 (en) * 1981-08-19 1983-11-03 Giroflex Entwicklungs Ag Chair
US4432582A (en) * 1981-12-17 1984-02-21 Wilkhahn-Wilkening & Hahne Gmbh & Company Chair with means for adjusting the inclination of the backrest
DE3232771A1 (de) * 1982-09-03 1984-03-08 Wilkhahn Wilkening + Hahne GmbH + Co, 3252 Bad Münder Arbeits-sitzmoebel

Also Published As

Publication number Publication date
ZA843867B (en) 1985-04-24
DE3372059D1 (en) 1987-07-23
EP0136374A3 (fr) 1985-06-12
CA1237973A (fr) 1988-06-14
US4668012A (en) 1987-05-26
JPS6077712A (ja) 1985-05-02
JPH0454446B2 (fr) 1992-08-31
ATE27763T1 (de) 1987-07-15
EP0136374A2 (fr) 1985-04-10

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