EP0264029B1 - Chaise - Google Patents

Chaise Download PDF

Info

Publication number
EP0264029B1
EP0264029B1 EP87114333A EP87114333A EP0264029B1 EP 0264029 B1 EP0264029 B1 EP 0264029B1 EP 87114333 A EP87114333 A EP 87114333A EP 87114333 A EP87114333 A EP 87114333A EP 0264029 B1 EP0264029 B1 EP 0264029B1
Authority
EP
European Patent Office
Prior art keywords
backrest
chair
seat
rocking device
chair according
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
EP87114333A
Other languages
German (de)
English (en)
Other versions
EP0264029A2 (fr
EP0264029A3 (en
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 AT87114333T priority Critical patent/ATE78139T1/de
Publication of EP0264029A2 publication Critical patent/EP0264029A2/fr
Publication of EP0264029A3 publication Critical patent/EP0264029A3/de
Application granted granted Critical
Publication of EP0264029B1 publication Critical patent/EP0264029B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • 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
    • 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
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/126—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for chairs

Definitions

  • the invention relates to a chair with a seat part and a backrest part, which parts are supported essentially via a lever linkage on a cantilevered arm arranged on the support part of a base frame.
  • Chairs of this type are known in various designs.
  • the seat part In order to increase the seating comfort, it is known to design the seat part to be pivotable relative to the supporting part, a counterforce being exerted with a spring element to support the body weight of the seated person. If the seating comfort is to be increased further, in particular in that a "relax" position can be assumed by the seated person, it is also known to design the back part to be pivotable relative to the seat part. In this case, too, it is necessary to generate a counterforce to the forces exerted by the seated person on this part by means of one or more correspondingly arranged spring elements.
  • Another chair is known from DE-U 8 614 185, which essentially comprises a carrier, a seat part and a backrest part and a steering linkage formed in parallelogram fashion from a plurality of control arms and levers.
  • the individual steering linkage elements are designed and arranged accordingly to achieve a restoring force that is dependent on the weight of the user.
  • a further chair in particular designed for seats on data viewing devices, which comprises a frame arranged on a base frame and a seat frame connected to it via front and rear seat links and a backrest connected to the seat frame via two back links. of which a backrest link together with the rear seat link forms an angle lever.
  • this chair this is possible below the seat arranged lever linkage is a so-called working and relaxation position of the seat unit, but this solution is relatively complex in terms of the structural and spatial structure of the lever linkage.
  • the object of the invention is to improve the seating comfort of a chair of the type mentioned with the simplest possible constructive means and with little space requirement in such a way that a so-called rear-oriented relax position of the seat and backrest part is achieved with relatively little effort.
  • this object is achieved in that the support arm is assigned a cradle supported on the support arm in the knee-side region of the seat part via a first pair of straps and in the backrest-side region of the seat part via a second pair of straps and connecting the pair of straps in a parallelogram-like manner, and that on the plates of the second A pair of brackets each have an extension arm and a connecting rod articulated to it and connected via a slider with a spring element supported on the cradle, and the backrest part is supported by a backrest strut articulated thereon and on the slider or on the extension arm.
  • the forces exerted on the seat and backrest part are essentially balanced by the cradle, so that advantageously only a small part of the forces have to be absorbed by the spring element.
  • the individual functional elements as well as the spring element which is only dimensioned for shock absorption during the return movement of the seat and backrest part, can be arranged under the seat part with a small space requirement.
  • FIG. 1 denotes a support part of a base frame (not shown) for a chair, which support element 1 is attached to a support arm 2 which extends slightly obliquely upwards towards the knee side of the chair.
  • a support arm 2 which extends slightly obliquely upwards towards the knee side of the chair.
  • two pivot joints 3, 4 are arranged at a distance from one another, to each of which a pair of plates with plates 5, 6 is articulated.
  • the tabs 5, 6 are pivotally connected to a cradle 9 via further swivel joints 7, 8.
  • the linkage 12 is composed of several parts, namely an extension arm 15, which forms part of the backrest-side tab 5, a push rod 16, which is connected to the extension arm 15 by means of a swivel joint 17, a slide 20 on which the push rod 16 articulated by means of a swivel joint 18 and which is displaceably guided on the cradle 9, and a backrest strut 21 which on the one hand is rotatably supported on the backrest part 11 by means of a fixed connection 19 and on the other hand is rotatably supported on the slide 20 via the swivel joint 18.
  • a spring element 25 is mounted, of which one end 26 is connected to the slide 20 and the other end 27 is fastened to the cradle 9.
  • the spring element 25 can be a compression spring or a gas spring.
  • one end 26 is a piston rod supported on the slide 20 and the other end 27 is a cylinder attached to the cradle. Since the piston rod of the spring element 25 only moves in the longitudinal direction of the cradle 9, the ends 26, 27 can be firmly connected to the cradle.
  • the spring element 25 can be dimensioned correspondingly smaller.
  • the two parts 10, 11 are designed as a one-piece, fiber-reinforced plastic shell seat unit which has a spring-elastic arch part 30 on the knee side, which can be provided with a progressive spring force, for example.
  • a groove 31 which is shaped like a groove and whose spring characteristic can also be selected accordingly. If necessary, the bending groove 31 can also be formed with more than one bend.
  • Another bending groove 32 can be provided on the backrest part 11.
  • FIG. 4 an embodiment of the chair frame described is shown.
  • the reference symbols have the same meaning as in FIGS. 1 and 2 and are therefore not explained again.
  • the cradle 9 is arranged between the partial arms of the support arm 2 and has, for example, the shape of a hollow cylinder or a square tube.
  • the support arm 2 has a slot 35 on the underside, in which the slide 20 consisting of plates 36, 37 is held together by a connecting bolt (not shown).
  • the piston rod 26 is attached to the slide 20 and the cylinder 27 of the spring element 25 is attached to the knee-side end of the cradle 9.
  • An actuating device 38 serves to release or block the spring element 25. From FIG. 4 it can be seen that two backrest struts 21 are articulated on the swivel joint 18. A fastening plate 40 is provided on the knee side for fastening the parts 10, 11 designed as a plastic shell.
  • the chair frame described has the advantage that some of the forces exerted by a seated person are inherent, i.e. are balanced by the weighing device, which is formed by the pairs of plates 5, 6 and the cradle 9. As a result, the spring element 25 can be designed smaller, so that it can be accommodated in the cradle 9 itself. Because of this balancing of the forces, there is no need to adjust the spring element in relation to the respective weight of the seated person. If this person sits on the chair without leaning, practically the entire weight is balanced by this device. Only at the transition to the "relax" position is part of this weight absorbed by the spring element 25.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Finger-Pressure Massage (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Pyridine Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)

Claims (10)

  1. Siège comportant une assise (10) et un dossier (11), portés essentiellement par un bras de support (2), disposé en saillie sur une pièce de support (1) d'un piétement, par l'intermédiaire d'un ensemble de leviers, caractérisé en ce qu'une bielle (9) est assujettie au bras de support (2), ladite bielle (9) étant reliée, dans la zone côté genoux de l'assise (10) à une première barre de liaison (6) et, dans la zone côté dossier de l'assise (10) à une deuxième barre de liaison (5). elle-même reliée au bras de support (2) et à la bielle (9), les deux barres de liaison (5, 6) formant ainsi un parallélogramme avec la bielle (9), et en ce qu'un bras prolongateur (15) est disposé dans le prolongement de la deuxième barre de liaison (5), bras auquel est articulée une jambe de force (16) en liaison fonctionnelle avec un élément de ressort (25) supporté par la bielle (9) par l'intermédiaire d'une pièce coulissante (20), et en ce que le dossier (11) est supporté par une jambe de force de dossier (21) articulée sur le dossier ainsi que sur la pièce coulissante (20) ou sur le bras prolongateur (15).
  2. Siège selon la revendication 1, caractérisé en ce que la pièce coulissante (20) glissant sur la bielle (9) est guidée d'une façon réglable dans le sens longitudinal de la bielle (9) par rapport à celle-ci.
  3. Siège selon la revendication 1, caractérisé en ce que l'assise (10) reliée au dossier (11) d'une façon rigide ou articulée, est en liaison fonctionnelle avec la bielle (9) dans la zone côté genoux par l'intermédiaire d'une partie arquée (30) agissant élastiquement, ladite partie arquée (30) présentant, de préférence, une caractéristique d'élasticité qui augmente progressivement.
  4. Siège selon la revendication 1, caractérisé en ce que l'assise (10) et le dossier (11) sont conçus d'une seule pièce, comme une unité de siège, par une enveloppe en matière plastique renforcée par des fibres et sont réalisés notamment par une résine de polyester renforcée par des fibres de verre ou de carbone.
  5. Siège selon la revendication 1 et 4, caractérisé en ce qu'une gorge de flexion (31, 32) sous forme d'une rigole creusée, est prévue dans la zone de transition entre l'assise (10) et le dossier (11) et/ou dans la zone supérieure du dossier.
  6. Siège selon la revendication 1, caractérisé en ce que les deux barres de liaison (5, 6) sont conçues en tant que leviers coudés, formant chacun avec la partie de levier articulée sur la bielle (9), une première structure de parallélogramme, et formant chacun avec l'autre partie de levier (15, 34) ainsi qu'avec une tringle (33) qui y est articulée, une deuxième disposition en parallélogramme.
  7. Siège selon la revendication 6, caractérisé en ce que les barres de liaison (5, 6), conçues sous forme de leviers coudés, sont logées d'une façon pivotante respectivement avec un point d'appui (7, 8) disposé entre les parties de levier sur la bielle (9).
  8. Siège selon la revendication 6, caractérisé en ce que la tringle (33) reliant les deux parties de levier (15, 34) a une forme courbe, et en ce que le côté concave de la tringle (33) est disposé sur la partie faisant face à l'assise (10).
  9. Siège selon la revendication 6, caractérisé en ce que les deux configurations en parallélogramme comprennent chacune des barres de liaison (6, 5) disposées d'une façon correspondante les unes par rapport aux autres, lesdites barres étant logées sur un bras de support (2) muni de deux bras en saillie.
  10. Siège selon la revendication 9, caractérisé en ce que la bielle (9) est disposée entre les deux bras du bras de support (2), en ce que ladite bielle (9) loge un élément de ressort (25) relié fonctionnellement à un dispositif d'actionnement (38) et est conçue pour présenter en section perpendiculaire la forme d'un cylindre creux ou d'un tuyau de section carrée.
EP87114333A 1986-10-14 1987-10-01 Chaise Expired - Lifetime EP0264029B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87114333T ATE78139T1 (de) 1986-10-14 1987-10-01 Stuhl.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH4124/86 1986-10-14
CH4124/86A CH672237A5 (en) 1986-10-14 1986-10-14 Relaxing chair
CH2589/87 1987-07-08
CH2589/87A CH674127A5 (en) 1986-10-14 1987-07-08 Relaxing chair

Publications (3)

Publication Number Publication Date
EP0264029A2 EP0264029A2 (fr) 1988-04-20
EP0264029A3 EP0264029A3 (en) 1988-07-06
EP0264029B1 true EP0264029B1 (fr) 1992-07-15

Family

ID=25690857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114333A Expired - Lifetime EP0264029B1 (fr) 1986-10-14 1987-10-01 Chaise

Country Status (14)

Country Link
US (1) US4790598A (fr)
EP (1) EP0264029B1 (fr)
JP (2) JPS63102714A (fr)
AT (1) ATE78139T1 (fr)
AU (1) AU600310B2 (fr)
BR (1) BR8705450A (fr)
CA (1) CA1294524C (fr)
CH (2) CH672237A5 (fr)
DE (1) DE3780399D1 (fr)
DK (1) DK535887A (fr)
FI (1) FI87978C (fr)
NO (1) NO874262L (fr)
PT (1) PT85903B (fr)
ZA (1) ZA877507B (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8808022U1 (de) * 1988-06-22 1988-08-11 Bürositzmöbelfabrik Friedrich-W. Dauphin GmbH & Co, 8561 Offenhausen Stuhl, insbesondere Bürostuhl
US5015032A (en) * 1989-07-26 1991-05-14 Felling Gerald J Chaise lounge with adjustable canopy
DE69125935T2 (de) * 1990-03-20 1997-09-11 Gerald J. Lagunitas Calif. Felling Chaiselongue mit verstellbarer überdachung
DE9115439U1 (de) * 1991-12-12 1992-05-07 Pürner, Christoph, 8590 Marktredwitz Aufhängevorrichtung für ein Sitz- oder Ruhemöbel
DE4410383C2 (de) * 1994-03-25 1996-07-25 Desanta Stuhl
WO1995034233A1 (fr) * 1994-06-10 1995-12-21 Haworth, Inc. Fauteuil ergonomique
DE19526437C2 (de) * 1995-07-20 1997-10-23 Roeder Peter Stuhl, insbesondere Reihenstuhl
US6191886B1 (en) * 1998-08-24 2001-02-20 Vutec Corp. Video projection screen assembly
DE19916593C2 (de) * 1999-04-13 2003-06-12 Fast Ag Grenchen Fluggastsitz
CA2482133C (fr) * 2004-09-14 2010-01-05 Broda Enterprises Inc. Fauteuil coulissant avec mecanisme autobloquant
US7802846B2 (en) * 2007-03-19 2010-09-28 Pierre Bellefleur Reclining chair and chassis, frame and kit therefor
US20090315376A1 (en) * 2008-06-19 2009-12-24 Takuro Nishiwaki Reclinable chair with adjustable parallel locking gas spring device
CA2950118C (fr) * 2008-12-12 2019-04-23 Formway Furniture Limited Chaise, support et composants
US9084708B2 (en) 2010-12-08 2015-07-21 Broda Enterprises Inc. Modular chair
DE202012002288U1 (de) 2012-03-08 2012-05-11 Walter Knoll Ag & Co. Kg Funktionsstuhl
US9560917B2 (en) 2014-11-26 2017-02-07 Steelcase Inc. Recline adjustment system for chair
US10194750B2 (en) 2015-04-13 2019-02-05 Steelcase Inc. Seating arrangement
US11259637B2 (en) 2015-04-13 2022-03-01 Steelcase Inc. Seating arrangement
BR112017022038B1 (pt) 2015-04-13 2021-11-03 Steelcase Inc. Disposição de assento
US10966527B2 (en) 2017-06-09 2021-04-06 Steelcase Inc. Seating arrangement and method of construction

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615497A (en) * 1949-05-26 1952-10-28 Anton Lorenz Reclining article of furniture
US2942647A (en) * 1957-08-26 1960-06-28 Ferro Stamping Co Slideless seat support and adjusting device
US3765720A (en) * 1971-07-02 1973-10-16 Nissan Motor Position adjustable support mechanism
FR2434599A1 (fr) * 1978-08-30 1980-03-28 Grosfillex Sarl Siege pour gradins de stade
CH645795A5 (en) * 1979-07-23 1984-10-31 Drabert Soehne Chair, in particular visual display unit chair
US4586749A (en) * 1983-08-05 1986-05-06 Takara Company, New York, Inc. Barber/beauty chair
US4632450A (en) * 1984-11-21 1986-12-30 Cambridge Technologies, Inc. Convertible wheelchair/litter
DE8614185U1 (de) * 1986-05-26 1986-07-17 Drabert Söhne GmbH & Co, 4950 Minden Stuhl

Also Published As

Publication number Publication date
FI874519A0 (fi) 1987-10-13
CH674127A5 (en) 1990-05-15
JPS63111811A (ja) 1988-05-17
DK535887D0 (da) 1987-10-13
NO874262L (no) 1988-04-15
DK535887A (da) 1988-04-15
US4790598A (en) 1988-12-13
EP0264029A2 (fr) 1988-04-20
ZA877507B (en) 1988-04-15
EP0264029A3 (en) 1988-07-06
NO874262D0 (no) 1987-10-13
PT85903B (pt) 1993-07-30
FI874519A (fi) 1988-04-15
AU600310B2 (en) 1990-08-09
PT85903A (pt) 1988-11-30
BR8705450A (pt) 1988-05-24
CA1294524C (fr) 1992-01-21
CH672237A5 (en) 1989-11-15
FI87978B (fi) 1992-12-15
DE3780399D1 (de) 1992-08-20
AU7924187A (en) 1988-04-21
JPS63102714A (ja) 1988-05-07
ATE78139T1 (de) 1992-08-15
FI87978C (fi) 1993-03-25

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