EP0336288B1 - Stuhlgestell - Google Patents

Stuhlgestell Download PDF

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Publication number
EP0336288B1
EP0336288B1 EP89105589A EP89105589A EP0336288B1 EP 0336288 B1 EP0336288 B1 EP 0336288B1 EP 89105589 A EP89105589 A EP 89105589A EP 89105589 A EP89105589 A EP 89105589A EP 0336288 B1 EP0336288 B1 EP 0336288B1
Authority
EP
European Patent Office
Prior art keywords
supporting arm
seat
chair
back rest
supported
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
EP89105589A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0336288A1 (de
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 AT89105589T priority Critical patent/ATE84949T1/de
Publication of EP0336288A1 publication Critical patent/EP0336288A1/de
Application granted granted Critical
Publication of EP0336288B1 publication Critical patent/EP0336288B1/de
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
    • 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
    • A47C7/441—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with adjustable elasticity
    • 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
    • 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
    • A47C7/445—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs
    • 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
    • A47C7/446—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with fluid springs

Definitions

  • the invention relates to a chair with a seat part, a backrest part and a support arm supported on a support column designed as a pedestal, in which chair the seat part in the knee-side area by means of a spring-elastic arch part on the support arm and the backrest part via backrest struts on one with the support arm operatively connected spring element is supported.
  • a chair which essentially comprises a seat part and a backrest part, these parts being provided with a lever linkage with an associated cradle on a support arm of a support part designed as a base frame via an approximately parallelogram-like lever linkage which is operatively connected to a spring element are supported.
  • the seat part is arranged in the knee-side area via a spring-elastic arch part on the cradle, and in addition a bending groove oriented transversely to the direction of the seat is provided at the transition from the seat part to the backrest part.
  • the forces occurring on the spring element designed as a gas spring are essentially on the parallelogram lever linkage supported so that the gas spring can be dimensioned correspondingly smaller and an adjustment depending on the respective user weight is not necessary.
  • the invention is based on the object, using relatively simple, constructive means, on the one hand to keep the spring force which occurs in the knee-side arch part when the seat and backrest part is in a relax-oriented rearward position, and on the other hand to provide additional adjustability to enable the load dependent on the respective user.
  • this object is achieved in that the knee-side arch part is mounted with a bow section arranged at a distance from the seat part on a first articulation point provided on the support arm in such a way that by changing the distance between the seat part and the bow section the resilient restoring force of the bow part is adjustable.
  • FIG. 1 schematically shows a section of a chair frame for a chair (not shown), in which the support column of a foot frame (not shown) is 1.
  • a support arm 2 is attached, which extends slightly obliquely upwards against the knee area of the chair frame.
  • the chair frame has a seat part 5, to which a backrest part 6 adjoins.
  • the seat part 5 and the backrest part 6 can be rigidly or articulatedly connected to one another.
  • the backrest part 6 is connected to the seat part 5 by a bending groove 8 which is oriented transversely to the seat direction, whereby the backrest part 6 can also be pivoted rearwards relative to the seat part 5.
  • the pivoting movement of the backrest part 6 takes place against the restoring force of the bending groove 8.
  • the seat part 5 is guided around the support arm 2 in the knee-side area via a spring-elastic arch part 10 and is mounted on a first articulation point 11 arranged on the underside of the support arm 2.
  • the arch part 10 is provided with an arch section 10 'formed as an extension, which arch section 10' is designed as a lever 12 extending against the support column 1.
  • An adjusting screw 13 is mounted on the lever 12. Since the lever 12 changes its position and inclination when the seat part 5 is loaded, a threaded ring 14 is pivotably mounted in the lever 12. The adjusting screw 13 screwed into the threaded ring 14 is rotatably supported on the underside of the support arm 2. By turning the adjusting screw 13, the lever 12 can be moved in the direction of the double arrow 17 against the support arm 2 or away from it.
  • one or two backrest struts 15 are arranged in the region of the backrest part 6, which are attached at one end to the seat part 5 by a rigid connection, for example by a screw connection 16.
  • the two backrest struts 15 are arranged on both sides of the support arm 2 and are mounted on a slide 20 via a swivel joint 18.
  • the slide 20 is arranged in the interior of the support arm 2 and has a lower part 21 protruding from the support arm 2, on which lower part 21 the swivel joint 18 is arranged.
  • the support arm 2 is designed as a hollow profile body, for example in the form of a square tube, on the underside of which a longitudinal slot (not shown) extending in the longitudinal direction of the support arm 2 is provided.
  • the slide 20 consists of an inner part 22 arranged in the support arm 2 and an outer lower part 21. The two parts 21 and 22 of the slide 20 are connected to one another, for example, by a screw (not shown) penetrating the longitudinal slot.
  • the slide 20 is guided largely without play on the underside of the support arm 2.
  • the piston rod 23 of a gas spring 24 is articulated on the inner part 22 of the slide 20.
  • the cylinder 26 of the gas spring 24 is supported and supported at two articulation points 25 arranged opposite one another on the side walls of the support arm 2.
  • the control rod 27 of the gas spring 24 is operatively connected to a known actuating device (not shown) and can be operated by the user of the chair.
  • the slide 20 is replaced by one or two tabs 28.
  • the two tabs 28 are each mounted on the support arm 2 with one end designed as a swivel joint 29, while the other end is each designed as a swivel joint 18 on which the gas spring 24 and the backrest struts 15 are mounted.
  • the elements which are further shown in FIG. 2 and are not designated by reference numerals correspond to the elements designated in FIG. 1.
  • the chair frame described in connection with FIG. 1 and FIG. 2 has a relatively simple construction, in which the support arm 2 designed as a hollow profile body, the gas spring 24 mounted in the support arm 2 and the slide 20 connected to it, or the two tabs 28 and the backrest struts 15 supported thereon form the essential functional elements.
  • the resilient restoring force of the arch part 10 is adjusted by means of the adjusting screw 13 according to the requirements of the respective user.
  • the chair can then be swiveled into the desired relax position and blocked in this position by the gas spring 24.
  • the gas spring 24 By loosening the gas spring 24, the chair can be pivoted into another desired position and blocked again by means of the gas spring 24.
EP89105589A 1988-04-07 1989-03-30 Stuhlgestell Expired - Lifetime EP0336288B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89105589T ATE84949T1 (de) 1988-04-07 1989-03-30 Stuhlgestell.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1276/88A CH675817A5 (ko) 1988-04-07 1988-04-07
CH1276/88 1988-04-07

Publications (2)

Publication Number Publication Date
EP0336288A1 EP0336288A1 (de) 1989-10-11
EP0336288B1 true EP0336288B1 (de) 1993-01-27

Family

ID=4206631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89105589A Expired - Lifetime EP0336288B1 (de) 1988-04-07 1989-03-30 Stuhlgestell

Country Status (15)

Country Link
US (1) US5033791A (ko)
EP (1) EP0336288B1 (ko)
JP (1) JPH01305905A (ko)
AT (1) ATE84949T1 (ko)
AU (1) AU615046B2 (ko)
BR (1) BR8901620A (ko)
CA (1) CA1299988C (ko)
CH (1) CH675817A5 (ko)
DE (1) DE58903374D1 (ko)
DK (1) DK166589A (ko)
ES (1) ES2037305T3 (ko)
FI (1) FI891656A (ko)
NO (1) NO891437L (ko)
PT (1) PT90064B (ko)
ZA (1) ZA891739B (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109288304A (zh) * 2018-11-16 2019-02-01 张薇 弹力沙发

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9027090D0 (en) * 1990-12-13 1991-02-06 Acf Int Ltd Improvements relating to chairs
DE4209049C2 (de) * 1992-03-20 1995-05-11 Kloeber Gmbh & Co Arbeitssessel mit flachbauender Synchronmechanik
EP0885575A3 (en) 1992-06-15 2000-08-30 Herman Miller, Inc. Adjustable arm rest
JP2596820Y2 (ja) * 1993-07-27 1999-06-21 株式会社内田洋行 椅 子
DE4410383C2 (de) * 1994-03-25 1996-07-25 Desanta Stuhl
AU2954695A (en) * 1994-06-10 1996-01-05 Haworth Inc. Ergonomic chair
US5765914A (en) * 1995-06-07 1998-06-16 Herman Miller, Inc. Chair with a tilt control mechanism
US5979978A (en) * 1995-09-08 1999-11-09 Advanced Composites, Inc. Adjustable seat post clamp assembly for human-powered vehicles
US5918935A (en) * 1997-06-03 1999-07-06 Stulik; Edward L. Reclining chair
US6585320B2 (en) 2001-06-15 2003-07-01 Virco Mgmt. Corporation Tilt control mechanism for a tilt back chair
DE10219478B4 (de) * 2002-04-30 2006-07-13 Klöber GmbH Stuhl mit vom Benutzergewicht abhängigen Kraftspeicher
JP4137536B2 (ja) * 2002-07-03 2008-08-20 コクヨ株式会社 椅子
DE102006023981A1 (de) * 2006-05-22 2007-12-06 Wilkhahn Wilkening + Hahne Gmbh & Co. Kg Stuhl
US7674215B1 (en) * 2007-10-23 2010-03-09 Brunswick Corporation Exercise apparatus seat
US20110304192A1 (en) * 2010-06-15 2011-12-15 Augustat Betty A Ergometric Chair Apparatus
USD697726S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering
US11197548B2 (en) * 2019-12-16 2021-12-14 Allseating Corporation Reclining control system for a chair

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1184108A (en) * 1984-04-09 1985-03-19 David W. Smith Suspension arrangement for a tilting chair
DE8607194U1 (de) * 1986-03-15 1986-04-30 Drabert Söhne Minden (Westf.), 4950 Minden Sitzmöbel
US4744603A (en) * 1986-04-10 1988-05-17 Steelcase Inc. Chair shell with selective back stiffening
US4744600A (en) * 1986-05-06 1988-05-17 Itoki Co., Ltd. Cushioning mechanism for use with seat of chair and interlocking cushioning mechanism for seat and backrest
US4711491A (en) * 1986-06-09 1987-12-08 Jonathan Ginat Swivel tilt mechanism for chair
CH670363A5 (ko) * 1986-09-24 1989-06-15 Giroflex Entwicklungs Ag
JPH0511791Y2 (ko) * 1987-08-24 1993-03-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109288304A (zh) * 2018-11-16 2019-02-01 张薇 弹力沙发
CN109288304B (zh) * 2018-11-16 2020-11-13 江西金橡木业有限公司 弹力沙发

Also Published As

Publication number Publication date
NO891437L (no) 1989-10-09
AU3251589A (en) 1989-10-12
ES2037305T3 (es) 1993-06-16
FI891656A0 (fi) 1989-04-06
CH675817A5 (ko) 1990-11-15
JPH01305905A (ja) 1989-12-11
DK166589A (da) 1989-10-08
CA1299988C (en) 1992-05-05
PT90064A (pt) 1989-11-10
NO891437D0 (no) 1989-04-06
DK166589D0 (da) 1989-04-06
PT90064B (pt) 1994-03-31
US5033791A (en) 1991-07-23
DE58903374D1 (de) 1993-03-11
ATE84949T1 (de) 1993-02-15
AU615046B2 (en) 1991-09-19
BR8901620A (pt) 1989-11-21
EP0336288A1 (de) 1989-10-11
ZA891739B (en) 1989-11-29
FI891656A (fi) 1989-10-08

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