EP1127522A3 - Spring unit for weight adjustment of a chair - Google Patents

Spring unit for weight adjustment of a chair Download PDF

Info

Publication number
EP1127522A3
EP1127522A3 EP01104641A EP01104641A EP1127522A3 EP 1127522 A3 EP1127522 A3 EP 1127522A3 EP 01104641 A EP01104641 A EP 01104641A EP 01104641 A EP01104641 A EP 01104641A EP 1127522 A3 EP1127522 A3 EP 1127522A3
Authority
EP
European Patent Office
Prior art keywords
spring unit
chair
weight adjustment
spring
springs
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.)
Granted
Application number
EP01104641A
Other languages
German (de)
French (fr)
Other versions
EP1127522B1 (en
EP1127522A2 (en
Inventor
Rolf Scholz
Frank Weisser
Armin Sander
Martin Potrykus
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.)
Koenig and Neurath AG
Original Assignee
Koenig and Neurath 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 Koenig and Neurath AG filed Critical Koenig and Neurath AG
Publication of EP1127522A2 publication Critical patent/EP1127522A2/en
Publication of EP1127522A3 publication Critical patent/EP1127522A3/en
Application granted granted Critical
Publication of EP1127522B1 publication Critical patent/EP1127522B1/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
    • 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
    • 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
    • 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
    • A47C7/443—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs

Abstract

The spring unit for adjusting the support of a user's weight on an office chair comprises a main spring (12) and several auxiliary springs (17 - 19). All the springs are mounted on a connecting bar (13) at their bases and a slide (16) at the top allows the auxiliary springs to be individually or collectively linked with the main spring. An Independent claim is included for a chair incorporating the spring unit.
EP01104641A 2000-02-23 2001-02-23 Spring unit for weight adjustment of a chair Expired - Lifetime EP1127522B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10008453 2000-02-23
DE10008453A DE10008453C2 (en) 2000-02-23 2000-02-23 Spring unit for weight adjustment of a chair
DE20003313U DE20003313U1 (en) 2000-02-23 2000-02-23 Spring unit for weight adjustment of a chair

Publications (3)

Publication Number Publication Date
EP1127522A2 EP1127522A2 (en) 2001-08-29
EP1127522A3 true EP1127522A3 (en) 2002-02-06
EP1127522B1 EP1127522B1 (en) 2004-12-22

Family

ID=44280722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01104641A Expired - Lifetime EP1127522B1 (en) 2000-02-23 2001-02-23 Spring unit for weight adjustment of a chair

Country Status (4)

Country Link
US (1) US6659555B1 (en)
EP (1) EP1127522B1 (en)
AT (1) ATE285188T1 (en)
DE (2) DE20003313U1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4137536B2 (en) * 2002-07-03 2008-08-20 コクヨ株式会社 Chair
DE10241562A1 (en) 2002-09-07 2004-03-18 Bock-1 Gmbh & Co. Synchronous mechanism for office chairs
DE10357165A1 (en) 2003-12-06 2005-06-30 Bock-1 Gmbh & Co. Synchronous mechanism for office chairs
US20070090671A1 (en) * 2005-10-06 2007-04-26 Rbm A/S; Weight regulator for a chair
US9777111B2 (en) * 2005-10-20 2017-10-03 Grupo Petrotemex, S.A. De C.V. PET polymer with improved properties
DE202005017987U1 (en) * 2005-11-17 2006-01-12 Kintec-Solution Gmbh armchair
ITMI20060808A1 (en) * 2006-04-21 2007-10-22 Donati Spa DEVICE FOR ADJUSTING THE ELASTIC FORCE EXERCISED BY A MULTI PLURALITY
GB0609315D0 (en) * 2006-05-11 2006-06-21 Technicon Internat Man Service Improved seat
CN106455821A (en) 2014-04-17 2017-02-22 Hni技术公司 Chair and chair control assemblies, systems, and methods
IT201700049605A1 (en) * 2017-05-08 2018-11-08 L I M A S N C Di Riccardo Ed Elisa Beccegato Mechanism for controlling the inclination force of a back of a chair

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3537203A1 (en) * 1984-10-24 1986-04-24 Klöber GmbH & Co, 7770 Überlingen Work chair with inclination mechanism for seat and back
DE3834614A1 (en) * 1988-10-11 1990-04-12 Hartmut S Engel Piece of functional seating furniture
US5160184A (en) * 1989-07-18 1992-11-03 Steelcase, Inc. Controller for seating and the like
DE29819143U1 (en) * 1998-10-21 1999-02-11 Drabert Gmbh Office chair with a adjustable backrest

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2733322C3 (en) * 1977-07-23 1980-08-07 Protoned B.V., Amsterdam Work chair
DE3521488A1 (en) * 1985-06-14 1986-12-18 August Fröscher GmbH & Co KG, 7141 Steinheim WORK CHAIR
SE453253B (en) * 1985-06-24 1988-01-25 Lars Ake Holstensson FITTING FOR SEPARATE OFFICE CHAIR
DE3700447A1 (en) * 1987-01-09 1988-07-21 Vogt Bueromoebel SEAT FURNITURE
AT386517B (en) * 1987-02-10 1988-09-12 Zuend & Co Ag K CHAIR, IN PARTICULAR WORK CHAIR
DE3727784A1 (en) * 1987-08-20 1989-03-02 Kloeber Gmbh & Co WORK CHAIR WITH SWIVELING SEAT SHELL
DE4237495A1 (en) * 1992-11-06 1994-05-11 Stabilus Gmbh Locking piston-cylinder type gas damper - has O=ring located in groove of greater axial width along damper longitudinal direction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3537203A1 (en) * 1984-10-24 1986-04-24 Klöber GmbH & Co, 7770 Überlingen Work chair with inclination mechanism for seat and back
US4709962A (en) * 1984-10-24 1987-12-01 Kloeber Gmbh & Co. Work chair with a tilting mechanism for seat squab and backrest
DE3834614A1 (en) * 1988-10-11 1990-04-12 Hartmut S Engel Piece of functional seating furniture
US5160184A (en) * 1989-07-18 1992-11-03 Steelcase, Inc. Controller for seating and the like
DE29819143U1 (en) * 1998-10-21 1999-02-11 Drabert Gmbh Office chair with a adjustable backrest

Also Published As

Publication number Publication date
ATE285188T1 (en) 2005-01-15
US6659555B1 (en) 2003-12-09
DE10008453A1 (en) 2001-09-13
DE20003313U1 (en) 2001-07-05
EP1127522B1 (en) 2004-12-22
DE10008453C2 (en) 2002-07-18
EP1127522A2 (en) 2001-08-29

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