EP0613642A1 - Chaise, notamment chaise de bureau - Google Patents

Chaise, notamment chaise de bureau Download PDF

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Publication number
EP0613642A1
EP0613642A1 EP94100085A EP94100085A EP0613642A1 EP 0613642 A1 EP0613642 A1 EP 0613642A1 EP 94100085 A EP94100085 A EP 94100085A EP 94100085 A EP94100085 A EP 94100085A EP 0613642 A1 EP0613642 A1 EP 0613642A1
Authority
EP
European Patent Office
Prior art keywords
seat
support
spring
backrest
horizontal axis
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.)
Withdrawn
Application number
EP94100085A
Other languages
German (de)
English (en)
Inventor
Wilhelm Schulz
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.)
Drabert Soehne GmbH and Co
Original Assignee
Drabert Soehne GmbH and Co
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 Drabert Soehne GmbH and Co filed Critical Drabert Soehne GmbH and Co
Publication of EP0613642A1 publication Critical patent/EP0613642A1/fr
Withdrawn legal-status Critical Current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
    • A47C1/03255—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
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
    • A47C1/03279—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs of torsion type

Definitions

  • the invention relates to seating furniture, in particular an office chair according to the preamble of claim 1.
  • a disadvantage of the known seating furniture of this type is the fact that it is comparatively complex.
  • the invention is based on the object of making seating furniture of the type presupposed as known particularly easy to manufacture from a few parts and at low cost.
  • the design of the coupling element as a spiral spring has the result that this spiral spring has a spring function and a lever function at the same time, that is to say it can perform mechanical forced coupling between the backrest support and the seat.
  • the double function of the spiral spring makes such seating furniture lighter, simpler and less expensive than the known seating furniture of the type presumed to be known.
  • a seat support 2 is fastened on the central chair column 1 and has a front area consisting of two parallel webs 2a, on which the seat 3 is mounted so as to be pivotable about a pivot axis 3a.
  • a backrest support 4 is pivotally mounted about a pivot axis 4a.
  • the backrest support 4 carries a backrest 5.
  • a connection is made by means of a spiral spring 6 between the seat 3 and the backrest support 4.
  • the backrest support 4 consists of two parallel areas, which have at their ends receptacles for the ends of the arms 6b of the spiral spring.
  • the arms 6b are pivotally attached to the two parallel legs of the backrest support 4 about the axes 4b.
  • the arms 6b of the spiral spring 6 extend obliquely outwards and upwards to an offset along the axis 3b.
  • the axis 3b is formed by corresponding recordings of the horizontal area of the spiral spring 6.
  • These receptacles or storage areas 3 c are attached to the underside of the seat 3.
  • this cranked area 6a is supported at the rear end of the seat support 2 behind the chair column 1 by resting there. It is easily possible to adjust the spring hardness by an additional adjusting screw, not shown, which can be adjusted is supported on the one hand on the cranked area 6a and on the other hand on the seat support 2.
  • the movement of the backrest support is transmitted to the seat 3 via the arms 6b.
  • the spiral spring 6 is thus simultaneously a coupling element for the movement and a spring element.
  • spiral spring is used as a generic term for various types of springs, all of which can be used in the invention.
  • the spiral spring can be a torsion spring, for example.
  • leg spring it is possible to design the spiral spring as a leg spring, the windings being able to extend around the axis 3b.
  • simple leaf springs as spiral springs, which are clamped rigidly at the articulation points 4b and 3b, for example.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP94100085A 1993-03-05 1994-01-05 Chaise, notamment chaise de bureau Withdrawn EP0613642A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4306970 1993-03-05
DE4306970A DE4306970C2 (de) 1993-03-05 1993-03-05 Sitzmöbel, insbesondere Bürostuhl

Publications (1)

Publication Number Publication Date
EP0613642A1 true EP0613642A1 (fr) 1994-09-07

Family

ID=6482053

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94100085A Withdrawn EP0613642A1 (fr) 1993-03-05 1994-01-05 Chaise, notamment chaise de bureau

Country Status (2)

Country Link
EP (1) EP0613642A1 (fr)
DE (1) DE4306970C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001091613A1 (fr) * 2000-05-27 2001-12-06 Röder, Peter Chaise
WO2011104735A1 (fr) * 2010-02-26 2011-09-01 Donati S.P.A. Dispositif pour la synchronisation du siège et du dossier d'une chaise
US10098466B2 (en) 2013-12-17 2018-10-16 Donati S.P.A. Chair with adjustable backrest

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10049480C2 (de) * 2000-10-06 2002-12-05 Dauphin Friedrich W Gmbh Stuhl, insbesondere Bürostuhl
DE102013022122A1 (de) * 2013-12-28 2015-07-02 Klöber GmbH Arbeitsstuhl mit Synchronmechanik und Biegefeder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1109551A (en) * 1965-07-23 1968-04-10 Dare Inglis Products Ltd Tilting chair mechanism
DE3741472A1 (de) * 1987-12-08 1989-06-22 Simon Desanta Stuhl

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1109551A (en) * 1965-07-23 1968-04-10 Dare Inglis Products Ltd Tilting chair mechanism
DE3741472A1 (de) * 1987-12-08 1989-06-22 Simon Desanta Stuhl

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001091613A1 (fr) * 2000-05-27 2001-12-06 Röder, Peter Chaise
WO2011104735A1 (fr) * 2010-02-26 2011-09-01 Donati S.P.A. Dispositif pour la synchronisation du siège et du dossier d'une chaise
CN102781281A (zh) * 2010-02-26 2012-11-14 多纳蒂股份公司 用于同步椅子的椅座和椅背的装置
US9161627B2 (en) 2010-02-26 2015-10-20 Donati S.P.A. Device for synchronizing the seat and backrest of a chair
US10098466B2 (en) 2013-12-17 2018-10-16 Donati S.P.A. Chair with adjustable backrest

Also Published As

Publication number Publication date
DE4306970A1 (de) 1994-09-08
DE4306970C2 (de) 1995-05-04

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