US20010024057A1 - Chair, in particular office chair - Google Patents

Chair, in particular office chair Download PDF

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Publication number
US20010024057A1
US20010024057A1 US09/772,372 US77237201A US2001024057A1 US 20010024057 A1 US20010024057 A1 US 20010024057A1 US 77237201 A US77237201 A US 77237201A US 2001024057 A1 US2001024057 A1 US 2001024057A1
Authority
US
United States
Prior art keywords
seat plate
frame
chair
abutment
displaceable
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.)
Abandoned
Application number
US09/772,372
Other languages
English (en)
Inventor
Nikolaus Heidt
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.)
Interstuhl Bueromoebel GmbH and Co KG
Original Assignee
Interstuhl Bueromoebel GmbH and Co KG
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 Interstuhl Bueromoebel GmbH and Co KG filed Critical Interstuhl Bueromoebel GmbH and Co KG
Assigned to INTERSTUHL BUEROMOEBEL GMBH & CO. KG reassignment INTERSTUHL BUEROMOEBEL GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEIDT, NIKOLAUS
Publication of US20010024057A1 publication Critical patent/US20010024057A1/en
Abandoned 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
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil 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
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
    • A47C1/03274—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs of torsion type
    • 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

Definitions

  • the present invention relates to a chair, in particular an office chair, with a seat plate which is mounted on a frame and can be inclined by a weight displacement.
  • the seat plate of such chairs can be inclined downwardly by a chair user, by leaning against the back with its body weight against the spring force in the rear region.
  • the spring force can be adjusted individually in correspondence with the body weight of the chair user, so that a lighter chair user as well as a heavier chair user can incline downwardly the seat surface exclusively by its body weight, without pressing additionally for example from a table edge or the like.
  • a chair user can adjust the return force of the spring so that the seat surface is inclined downwardly relative to the back by a stronger leaning.
  • the adjustment of the return force was performed by a rotary knob mounted under a seat surface.
  • a chair of the above mentioned general type in which the seat plate is connected with the frame turnably in its front half, and at a location of the seat plate which is located further to the back is connected with the hinge articulately through at least one lever.
  • at least one leg spring is mounted under the seat plate on the frame and applies a return force to the seat plate, and an abutment of the at least one leg spring is adjustable on the seat plate, depending on the body weight of the chair user. The adjustment of the abutment of the leg spring can be performed fast and conveniently without applying any force.
  • the adjustable abutment can be formed as a rod which is displaceable parallel to the seat plate and arranged between the seat plate and the front leg of the leg spring.
  • the chair user can adjust the return force of the leg spring as he desires very simply and conveniently, by displacement of the rod along the chair.
  • the adjustment of the return spring is especially comfortable, when the displacable rod extends at least at one side laterally beyond the seat plate, in accordance with another feature of the present invention.
  • the inclination of the back can be adjustable in a known manner simultaneously with the inclination of the seat plate.
  • the back can be inclined more than the seat plate, which is more favorable from the ergonomic point of view.
  • the inclination mechanics of the seat plate can be designed so that the seat plate in its front half is connected with a frame through at least one shackle which is turnably arranged on the seat plate. Then the whole seat plate during inclination is somewhat moved rearwardly.
  • the seat plate can be turnable however in its front region around the turning axle which is fixed on the frame, and the connection between the seat plate and the frame which is located further behind in the longitudinal direction of the chair can be displaceable.
  • FIG. 1 is a side view of a seat plate and a frame of a chair in accordance with the present invention.
  • FIG. 2 is a view of a rear region of the downwardly inclined seat plate in accordance with the present invention.
  • FIG. 1 shows a seat plate 10 which is mounted on a frame 11 of a chair in accordance with the present invention.
  • the seat plate 10 is downwardly inclinable in its rear region as shown in FIG. 2.
  • the seat plate 10 is connected with a frame 11 through a shackle 12 which is turnably arranged on the seat plate 10 .
  • the seat plate 10 is connected articulately with the frame 11 through a lever 13 .
  • a leg spring 14 is mounted under the seat plate 10 on the frame 11 .
  • the leg spring 14 applies a return force with its legs 19 and 20 , to the seat plate 10 and presses thereby the seat plate 10 which is inclined downwardly in the rear region, during unloading again upwardly to the initial position.
  • the leg spring 10 obtains its pretensioning, since the abutments 15 and 16 arranged on the seat plate press against its legs 19 and 20 .
  • the abutment 16 can be displaced along an elongated hole 17 . With the displacement of the abutment 16 in the elongated hole 17 , the pretensioning of the leg spring 14 can be individually adjusted. Thereby the return force of the spring 16 can be varied, depending on the body weight of the chair user.
  • the abutment 16 in the initial position of the seat plate 10 shown in FIG. 1 has no contact with the leg 19 of the spring 14 , which abuts against the frame 11 .
  • the abutment 16 comes in contact with the leg 19 .
  • the leg 20 to the contrary, in all positions of the seat plate 10 abuts against it.
  • the abutment 16 in the shown example is formed as a rod which extends laterally beyond the seat plate 1 .
  • the back of the not shown chair can be mounted on the extension 18 of the lever 13 .
  • the not shown back or the extension 18 are inclined simultaneously with the seat plate 10 .
  • the back or the extension 18 are inclined more than the seat plate 10 . This is favorable ergonomically for the chair user.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
US09/772,372 1999-10-21 2001-01-30 Chair, in particular office chair Abandoned US20010024057A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19950923A DE19950923A1 (de) 1999-10-21 1999-10-21 Stuhl, insbesondere Bürostuhl
DE19950923.9 1999-10-21
EP00128461A EP1219207A1 (de) 1999-10-21 2000-12-23 Stuhl, insbesondere Bürostuhl

Publications (1)

Publication Number Publication Date
US20010024057A1 true US20010024057A1 (en) 2001-09-27

Family

ID=41822404

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/772,372 Abandoned US20010024057A1 (en) 1999-10-21 2001-01-30 Chair, in particular office chair

Country Status (3)

Country Link
US (1) US20010024057A1 (de)
EP (1) EP1219207A1 (de)
DE (1) DE19950923A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6886888B2 (en) * 2001-05-18 2005-05-03 Bock-1 Gmbh & Co. Synchronizing mechanism for correlated seat/backrest motion of an office chair
US20080088163A1 (en) * 2005-03-26 2008-04-17 Armin Sander Chair, In Particular Office Chair
WO2014166804A1 (en) * 2013-04-08 2014-10-16 Johann Burkhard Schmitz Mechanical subassembly for a chair and chair having such a mechanical subassembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT411962B (de) * 2003-02-18 2004-08-26 Hansen Eckhard Dipl Ing Stuhl
DE102007006065B4 (de) * 2007-02-02 2008-11-27 Simon Desanta Stuhl

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL85451C (de) * 1955-06-02 1957-06-15
DE3530868A1 (de) * 1985-08-29 1987-03-05 Kusch Co Sitzmoebel Wippmechanik fuer sitzmoebel
DE3916474A1 (de) * 1989-05-20 1990-11-22 Roeder Soehne Sitzmoebelfab Stuhl, insbesondere arbeits- oder buerostuhl
US4892354A (en) * 1989-06-30 1990-01-09 Shepherd Products U.S., Inc. Chair seat tilt control
JP3330145B2 (ja) * 1991-05-21 2002-09-30 株式会社イトーキ 椅子の背，座部の連動支持機構
DE4312113C1 (de) * 1993-04-14 1994-10-27 Mauser Waldeck Ag Sitzmöbel
US5417474A (en) * 1993-09-23 1995-05-23 Westinghouse Electric Corporation Tilt control mechanism for chairs
DE19640564A1 (de) * 1996-10-01 1998-04-02 Stoll Sedus Ag Sitzmöbel mit neigbarem Sitz und Rückenlehne
DE29717571U1 (de) * 1997-10-02 1997-12-18 SIFA Sitzfabrik GmbH, 92237 Sulzbach-Rosenberg Sitzträger für Stühle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6886888B2 (en) * 2001-05-18 2005-05-03 Bock-1 Gmbh & Co. Synchronizing mechanism for correlated seat/backrest motion of an office chair
US20080088163A1 (en) * 2005-03-26 2008-04-17 Armin Sander Chair, In Particular Office Chair
US7566097B2 (en) 2005-03-26 2009-07-28 Armin Sander Chair, in particular office chair
WO2014166804A1 (en) * 2013-04-08 2014-10-16 Johann Burkhard Schmitz Mechanical subassembly for a chair and chair having such a mechanical subassembly

Also Published As

Publication number Publication date
EP1219207A1 (de) 2002-07-03
DE19950923A1 (de) 2001-04-26

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Legal Events

Date Code Title Description
AS Assignment

Owner name: INTERSTUHL BUEROMOEBEL GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HEIDT, NIKOLAUS;REEL/FRAME:011773/0868

Effective date: 20010220

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION