WO1992004844A1 - Chaise - Google Patents

Chaise Download PDF

Info

Publication number
WO1992004844A1
WO1992004844A1 PCT/AU1991/000412 AU9100412W WO9204844A1 WO 1992004844 A1 WO1992004844 A1 WO 1992004844A1 AU 9100412 W AU9100412 W AU 9100412W WO 9204844 A1 WO9204844 A1 WO 9204844A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
chair according
pivotally connected
back rest
link
Prior art date
Application number
PCT/AU1991/000412
Other languages
English (en)
Inventor
Karl Schreckenberg
Original Assignee
Karl Schreckenberg
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 Karl Schreckenberg filed Critical Karl Schreckenberg
Publication of WO1992004844A1 publication Critical patent/WO1992004844A1/fr

Links

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
    • A47C1/03283—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

Definitions

  • the present invention relates to chairs for office use or domestic situations.
  • chairs for use in offices consist of a seat which is provided with a back rest which may be adjusted independently of the seat.
  • Other chairs are provided with a seat and back rest which are connected together and are pivotally mounted on a stand.
  • the present invention provides an alternative chair comprising a seat, a back rest which is pivotally connected to the seat, a link, a biasing means and a frame support, wherein the frame support is pivotally connected to a front section of the seat and is pivotally connected to the back rest through the link and biasing means.
  • the link is pivotally connected to the frame and back rest.
  • the link may comprise a proximal and distal end such that it is pivotally connected to the frame support at its distal end and is pivotally connected to the back rest at its proximal end.
  • the biasing means may be arranged to oppose relative movement between the back rest and the frame support.
  • the biasing means may also be arranged to oppose relative movement between the back rest and the frame support when the seat is forced to move towards the frame support.
  • the seat is forced to move towards the frame support when a person is seated on it.
  • the biasing means may be pivotally connected to the back rest at the same point the back rest is pivotally connected with the seat.
  • biasing means be pivotally connected to the frame support at the same point where the link is pivotally connected to the frame support.
  • the link may be pivotally connected to a back rest end of the frame support.
  • the back rest may be pivotally connected to a back section of the seat.
  • the back rest may comprise a back portion and a linkage portion.
  • the linkage portion may be pivotally connected to the link.
  • the back rest is pivotally connected to the seat between the back and linkage portions.
  • the biasing means may comprise a gas discharge tube or a spring mechanism.
  • the biasing means is arranged to move the seat back to a steady state position when a force applied to the top of the seat is removed therefrom.
  • the frame support is arranged to be fixed to a stand.
  • the back rest linkage portion may comprise an upper end portion which is pivotally connected with the link
  • the pivotal connection between the link and the back rest be located above the pivotal connection between the link and the frame support.
  • the link is approximately inclined at 45° with respect to a horizontal line drawn parallel with the surface of the seat.
  • downward motion of the seat causes the back rest to move clockwise about its pivotal connection with the seat, which in turn is arranged to move the link clockwise about its pivotal connection with the frame support.
  • the seat move clockwise about its pivotal connection with the frame support, when a person is seated on the seat.
  • the biasing means may be pivotally connected to the seat at a point separate from the pivot point at which the back rest is connected to the seat.
  • the frame support preferably, comprises a stan rigidly connected to an arm pivotally connected to the fron section of the seat.
  • the chair shown in the drawing comprises a seat 11 which at its front is pivotally connected to a fram support arm 12 through a pivot pin 13.
  • the frame support arm 12 has a shoulder portio 14 which is arranged to be attached to a stand 15.
  • the stand is located on one side of the seat, however, in practice it is envisaged that the stand be of cylindrical configuration and be located approximately centrally below the seat. In one embodiment it is envisaged that the sea be provided with a recess to allow the seat to move relativ to the stand without having the stand impinge upon the lowe surface of the seat.
  • a pivot pin 16 is provided through which a back rest 17 is pivotally connecte to the seat 11.
  • the back rest comprises a back portion 18 and a linkage portion 19.
  • the back rest has the appearance of a boomerang shape but in practic it may be of any shape.
  • the linkage portion 19 extends towards the stand 15 approximately at 45° with the top surface of the seat 11.
  • an upper portion 20 is provided with a pivot pin 21.
  • a link 22 in the form of a lever having a proximal end 23 and distal end 24 has its distal end pivotally connected to the pivot pin 21 and its proximal end 23 pivotally connected to a lower back portion of the frame support arm, shoulder portion 14, by means of pivot pin 25.
  • the back end 26 of the frame support arm is located adjacent the opposing end of the linkage portion 19 with a sufficient gap therebetween to allow relative motion between the frame support arm 12 and the back rest 17.
  • a gas discharge tube 27 is pivotally connected between pivot pin 16 and pivot pin 25. In figure 1, the sleeve of the gas discharge tube is shown closest to the pivot pin 16. However, this is not a limitation on the way the gas discharge tube may be connected between pivot pin 16 and 25.
  • FIG. 2 shows the manner in which the discharge tube 27 is connected to the pivot pin 25 to provide a means of adjustment of the chair.
  • Pivot pin 25 has a cam surface and is connected with the gas discharge tube 27 by means of pushing 28 which fits over the pivot pin 25.
  • Arm 27A of the gas discharge tube 27 is located within the end of the bushing 28 and in addition is provided with a tongue 27B at the end nearest the pivot pin 25, which tongue 27B is in contact with the surface of pivot pin 25.
  • the arm 27A of the gas discharge tube is slidable within sleeve portion 28A of the bushing 28 and is normally biased in contact with the surface of pivot pin 25. By turning pivot pin 25 the tongue 27B of the arm of the gas discharge tube 27A, can be made to move towards or away from pivot pin 25. Thus, increasing or decreasing the distance between pivot pins 25 and 16.
  • the gas discharge tube By removing the force applied to the top of seat 11, the gas discharge tube will tend to force the s 11 back to its original position (its steady state position) . In such a situation the back rest 17 will the tend to move clockwise about pivot pin 16 and the link 22 will tend to move clockwise about pivot pin 25.
  • the overall effect is that by seating a pers on seat 11, the back portion 18 will tend to move away fr the top of the seat 11.
  • the top of the chair returns to its original position and the back portion 18 moves towards the top of the seat 11 back to its original steady state position.
  • the adjustment mechanism shown in figure 2 it is possible to vary the distance between piv pins 25 and 16 as desired, thus, enabling a person seated seat 11 to move the seat 11 with respect to the back rest so as to achieve a desired configuration.
  • the pivot pin 13, be located as close to the front o the seat 11 as possible so as to enable a persons feet to remain on the ground during any stage of the above descri tilting action of the seat 11 and back rest 17.
  • the pivot pin 2 may be located at a lower end of the linkage portion 19 s that it is located lower than the pivot pin 25 and thus t link 22 slopes downwardly from the pivot pin 25 towards thepivot pin 21.
  • movement of the sea 11 downwardly can be arranged to move the back portion 18 towards the top of the seat 11.
  • the back rest 17 moves counter clockwise and the link 22 moves clockwise.
  • a frame suppor arm is provided on either side of seat 11 such that each frame support arm is connected to the stand 15.

Abstract

Chaise comprenant un siège (11), un dossier (18) monté pivotant au siège (11), une articulation (22), un dispositif d'inclinaison (27) et un support de cadre (15) monté de manière pivotante à la partie avant du siège ainsi qu'au dossier (18) par la biais de l'articulation (22) et du dispositif d'inclinaison (27).
PCT/AU1991/000412 1990-09-14 1991-09-05 Chaise WO1992004844A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPK2309 1990-09-14
AUPK230990 1990-09-14

Publications (1)

Publication Number Publication Date
WO1992004844A1 true WO1992004844A1 (fr) 1992-04-02

Family

ID=3774955

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1991/000412 WO1992004844A1 (fr) 1990-09-14 1991-09-05 Chaise

Country Status (2)

Country Link
DE (1) DE4192338T1 (fr)
WO (1) WO1992004844A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994028768A1 (fr) * 1993-06-11 1994-12-22 Philip Louis Peach Chaise
WO2000001279A1 (fr) * 1998-06-25 2000-01-13 Nils Seiersten Agencement de siege tel qu'un fauteuil inclinable
EP1180954A2 (fr) * 1999-05-27 2002-02-27 Steelcase Inc. Chaise synchrobasculante
EP3212037A4 (fr) * 2014-10-27 2018-05-16 Sykkylven Stål AS Meuble d'assise

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983000610A1 (fr) * 1981-08-19 1983-03-03 Giroflex Entwicklungs Ag Chaise
US4471994A (en) * 1981-03-17 1984-09-18 Fa. Karl Zund & Co., AG Adjustable chair
DE3520188A1 (de) * 1984-06-08 1985-12-12 Eckhard St. Margrethen Hansen Punktsynchronverstelleinrichtung fuer buerostuehle
AU4617885A (en) * 1984-10-03 1986-04-10 Giroflex Entwicklungs Ag Rearwardly inclining seat and backrest
EP0179933A1 (fr) * 1983-05-06 1986-05-07 Provenda-Marketing AG, Rehetobel Chaise de bureau
US4685730A (en) * 1984-12-21 1987-08-11 Etablissements Linguanotto Seat, especially work seat, with several positions
EP0240389A1 (fr) * 1986-03-05 1987-10-07 Eurosit Siège articulé
US4709962A (en) * 1984-10-24 1987-12-01 Kloeber Gmbh & Co. Work chair with a tilting mechanism for seat squab and backrest
EP0281845A1 (fr) * 1987-02-25 1988-09-14 Köhl Gmbh Chaise ou fauteuil pivotant à inclinaison synchronisée de l'assise et du dossier
AU2776689A (en) * 1988-01-06 1989-07-06 Schiavello Bros. (Vic.) Pty. Ltd. Adjustable chair

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471994A (en) * 1981-03-17 1984-09-18 Fa. Karl Zund & Co., AG Adjustable chair
WO1983000610A1 (fr) * 1981-08-19 1983-03-03 Giroflex Entwicklungs Ag Chaise
EP0179933A1 (fr) * 1983-05-06 1986-05-07 Provenda-Marketing AG, Rehetobel Chaise de bureau
DE3520188A1 (de) * 1984-06-08 1985-12-12 Eckhard St. Margrethen Hansen Punktsynchronverstelleinrichtung fuer buerostuehle
AU4617885A (en) * 1984-10-03 1986-04-10 Giroflex Entwicklungs Ag Rearwardly inclining seat and backrest
US4709962A (en) * 1984-10-24 1987-12-01 Kloeber Gmbh & Co. Work chair with a tilting mechanism for seat squab and backrest
US4685730A (en) * 1984-12-21 1987-08-11 Etablissements Linguanotto Seat, especially work seat, with several positions
EP0240389A1 (fr) * 1986-03-05 1987-10-07 Eurosit Siège articulé
EP0281845A1 (fr) * 1987-02-25 1988-09-14 Köhl Gmbh Chaise ou fauteuil pivotant à inclinaison synchronisée de l'assise et du dossier
AU2776689A (en) * 1988-01-06 1989-07-06 Schiavello Bros. (Vic.) Pty. Ltd. Adjustable chair

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994028768A1 (fr) * 1993-06-11 1994-12-22 Philip Louis Peach Chaise
WO2000001279A1 (fr) * 1998-06-25 2000-01-13 Nils Seiersten Agencement de siege tel qu'un fauteuil inclinable
EP1180954A2 (fr) * 1999-05-27 2002-02-27 Steelcase Inc. Chaise synchrobasculante
EP1180954A4 (fr) * 1999-05-27 2005-09-28 Steelcase Inc Chaise synchrobasculante
EP3212037A4 (fr) * 2014-10-27 2018-05-16 Sykkylven Stål AS Meuble d'assise
US10172462B2 (en) 2014-10-27 2019-01-08 Sykkylven Stal A/S Seating furniture

Also Published As

Publication number Publication date
DE4192338T1 (de) 1993-10-07

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