WO2002038008A1 - Dispositif au niveau d'un mecanisme de chaise conçu pour le reglage de l'inclinaison et de la hauteur du siege au moyen d'un seul levier d'actionnement - Google Patents

Dispositif au niveau d'un mecanisme de chaise conçu pour le reglage de l'inclinaison et de la hauteur du siege au moyen d'un seul levier d'actionnement Download PDF

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Publication number
WO2002038008A1
WO2002038008A1 PCT/SE2001/002457 SE0102457W WO0238008A1 WO 2002038008 A1 WO2002038008 A1 WO 2002038008A1 SE 0102457 W SE0102457 W SE 0102457W WO 0238008 A1 WO0238008 A1 WO 0238008A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
chair
operating lever
locking element
spring
Prior art date
Application number
PCT/SE2001/002457
Other languages
English (en)
Inventor
Simon Kolsjö
Original Assignee
Samhall Ab
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 Samhall Ab filed Critical Samhall Ab
Priority to AU2002214456A priority Critical patent/AU2002214456A1/en
Publication of WO2002038008A1 publication Critical patent/WO2002038008A1/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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/026—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
    • 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
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/22—Chairs or stools with vertically-adjustable seats with balancing device, e.g. by spring, by weight

Definitions

  • the present invention relates to an arrangement according to the pre-characterizing clause of claim 1.
  • the object of the present invention is to produce a chair mechanism of the aforementioned type, which has relatively few parts, which can be manufactured rationally and of which only a small number are moving parts and which are therefore cost effective to manufacture and assemble.
  • Fig. 1 in a diagrammatic side view shows a chair having a chair mechanism according to the invention.
  • Fig. 2 shows an oblique view of the chair mechanism from beneath
  • fig. 3 shows an exemplary embodiment of the structure of a frame part, forming part of the chair mechanism and having a locking element, by means of which the seat rake and seat height can be adjusted by means of a single operating lever.
  • Fig. 4 shows the frame part in fig. 3 from a different perspective to that in fig.3.
  • 1 generally denotes a chair having a seat la and backrest lb, which in this instance is rigidly connected to the seat la, as will be explained below.
  • FIG. 2 generally denotes a chair mechanism according to the invention, having an operating lever 3 for adjusting the seat rake and seat height, it being possible to adjust the seat rake by moving the lever 3 backwards, that is towards the backrest lb, provided, however, that the seat la is loaded by the weight of a person sitting thereon.
  • the seat height can be adjusted by moving the operating lever 3 upwards.
  • the chair mechanism 2 is connected to a chair stand comprising a gas-filled spring, only an upper part 4 of the chair stand, in which the gas-filled spring is located, being visible in figures 1 and 2.
  • the exterior structure of the chair mechanism can be seen from fig. 2, in which the upper part 4 of the chair stand is to be found.
  • a first inner frame part 2a is connected to the chair stand.
  • a second, outer frame part 2b is connected to the chair seat by way of a fixing plate 2c.
  • the rigid connection between the seat la and the backrest lb consists of two arms lc, which are fixed into the backrest and fitted to the frame part 2b.
  • the frame parts 2a, 2b are to a limited extent rotatable in relation to one another about an axis 2d, which lies across the chair mechanism. It will be appreciated from the above that this relative rotation involves an adjustment of the rake of the chair seat la in relation to the horizontal plane.
  • a catch mechanism that can be actuated by means of the operating lever 3 and is designed to lock the frame parts 2a, 2b relative to one another in a number of selectable chair seat rakes, acts between the frame parts 2a, 2b.
  • a spring element 5 which in the embodiment shown in the drawing is a rubber cylinder, but which obviously may alternatively be a helical coil spring.
  • the spring element 5 endeavours to turn the frame parts 2a, 2b away from one another, but is designed to be compressed when a person sits on the chair.
  • the catch mechanism comprises a locking element 2e operatively connected to the operating lever 3.
  • this locking element 2e can be displaced transversely to the direction of the axis 2d in and out of engagement with openings 2b 1 arranged in a wall 2b2 in the frame part 2b aligned transversely to the locking element 2e.
  • the operating lever 3 is articulated in a wall 2al in the frame part 2a running transversely to the axis 2d, in such a way that it can be moved horizontally for adjustment of the seat rake and vertically for adjustment of the seat height, as will be explained later.
  • the inner end 3 a of the operating lever 3 is bent in a U-shape, passes through an oblong opening 2el in the locking element 2e and is terminated by a part 6, fixed to the end 3a, widening out across the locking element 2e, as can be seen from fig. 3.
  • the operating lever 3 can consequently be moved forwards against the spring force but nothing further happens.
  • the spring is able to transmit the movement of the operating lever 3 to the locking element 2e and draw the latter out of engagement with the opening 2b 1.
  • Another chair seat rake may now be selected; the remote end of the locking element 2e automatically snaps in the corresponding opening 2b 1 under the action of the spring 7 without the need to move the operating lever 3.
  • the locking element 2e takes the form of an element to which torsion can be applied about, its longitudinal axis, such as a leaf spring, which at its edge 2e2 situated nearest the wall 2al of the frame part 2a is supported by the operating lever 3, but which, when the said lever is raised, is acted upon by the part 6, so that the opposite edge 2e3 is forced downwards by the turning of the locking element 2e.
  • the locking element 2e is thereby brought into engagement with an operating pin 8 belonging to the gas-filled spring, see fig. 4, which permits adjustment of the seat height.
  • the locking element 2e returns to its original shape and the engagement with the pin 8 ceases.

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)

Abstract

L'invention concerne un mécanisme de chaise, placé entre le support et le siège de chaise, muni d'un levier d'actionnement (3) pour régler la hauteur et l'inclinaison du siège de la chaise. Ledit mécanisme comporte une première (2a) et une seconde parties de châssis tournant l'une par rapport à l'autre autour d'un axe (2d). La première partie (2a) de châssis est reliée au support de chaise et la seconde au siège. Un mécanisme de préhension est conçu pour verrouiller l'une à l'autre les parties de châssis dans l'une des inclinaisons du siège de chaise choisies et comporte un élément de verrouillage (2e) qui, au moyen du levier d'actionnement (3), peut se déplacer vers l'intérieur et l'extérieur d'ouvertures dans la seconde partie de châssis définissant les inclinaisons du siège. Un ressort (5) entre les parties de châssis produit un contact par frottement entre l'élément de verrouillage (2e) et les ouvertures, de sorte que, lorsque le siège n'est pas soumis à une charge, l'élément de verrouillage (2e) ne peut être retiré de l'ouverture correspondante. Le ressort (5) cède lorsque le siège est soumis au poids d'une personne assise sur le siège, Le réglage de l'inclinaison de la chaise devenant alors possible. L'élément de verrouillage (2e) prend la forme d'un élément auquel on peut appliquer une torsion autour de son axe longitudinal, le levier d'actionnement (3) le mettant alors en prise, transversalement par rapport au sens de fonctionnement pour le réglage de l'inclinaison du siège, avec un élément destiné au réglage de la hauteur du siège. Lorsqu'il n'est pas sollicité par le levier d'actionnement (3), il se retire dudit élément sous l'effet du ressort de rappel.
PCT/SE2001/002457 2000-11-08 2001-11-07 Dispositif au niveau d'un mecanisme de chaise conçu pour le reglage de l'inclinaison et de la hauteur du siege au moyen d'un seul levier d'actionnement WO2002038008A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002214456A AU2002214456A1 (en) 2000-11-08 2001-11-07 Device at a chair mechanism for adjustment of inclination and height of seat using one single operating lever

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0004084A SE516095C2 (sv) 2000-11-08 2000-11-08 Anordning vid en stolmekanism för inställning av sitslutning och sitthöjd medelst en enda manöverspak
SE0004084-0 2000-11-08

Publications (1)

Publication Number Publication Date
WO2002038008A1 true WO2002038008A1 (fr) 2002-05-16

Family

ID=20281741

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2001/002457 WO2002038008A1 (fr) 2000-11-08 2001-11-07 Dispositif au niveau d'un mecanisme de chaise conçu pour le reglage de l'inclinaison et de la hauteur du siege au moyen d'un seul levier d'actionnement

Country Status (3)

Country Link
AU (1) AU2002214456A1 (fr)
SE (1) SE516095C2 (fr)
WO (1) WO2002038008A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109419197A (zh) * 2017-08-30 2019-03-05 永艺家具股份有限公司 用于办公椅背座同步联动装置的锁定机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756654A (en) * 1970-01-31 1973-09-04 Suspa Federungstech Article of seating furniture
WO1994028768A1 (fr) * 1993-06-11 1994-12-22 Philip Louis Peach Chaise
US6003943A (en) * 1996-04-22 1999-12-21 Steelcase Development Inc. Multi-function control for chair

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756654A (en) * 1970-01-31 1973-09-04 Suspa Federungstech Article of seating furniture
WO1994028768A1 (fr) * 1993-06-11 1994-12-22 Philip Louis Peach Chaise
US6003943A (en) * 1996-04-22 1999-12-21 Steelcase Development Inc. Multi-function control for chair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109419197A (zh) * 2017-08-30 2019-03-05 永艺家具股份有限公司 用于办公椅背座同步联动装置的锁定机构
CN109419197B (zh) * 2017-08-30 2024-05-24 永艺家具股份有限公司 用于办公椅背座同步联动装置的锁定机构

Also Published As

Publication number Publication date
SE0004084L (sv) 2001-11-19
SE0004084D0 (sv) 2000-11-08
SE516095C2 (sv) 2001-11-19
AU2002214456A1 (en) 2002-05-21

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