EP0737431A1 - Dispositif pour fixer le support oscillateur d'un siège dans différentes positions - Google Patents

Dispositif pour fixer le support oscillateur d'un siège dans différentes positions Download PDF

Info

Publication number
EP0737431A1
EP0737431A1 EP95830527A EP95830527A EP0737431A1 EP 0737431 A1 EP0737431 A1 EP 0737431A1 EP 95830527 A EP95830527 A EP 95830527A EP 95830527 A EP95830527 A EP 95830527A EP 0737431 A1 EP0737431 A1 EP 0737431A1
Authority
EP
European Patent Office
Prior art keywords
seat
oscillating
support
toothed block
control lever
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Withdrawn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
EP95830527A
Other languages
German (de)
English (en)
Inventor
Sergio Moreschi
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.)
Cofemo SpA
Original Assignee
Cofemo SpA
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 Cofemo SpA filed Critical Cofemo SpA
Publication of EP0737431A1 publication Critical patent/EP0737431A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
    • 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
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • A47C1/03238—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest 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
    • 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

Definitions

  • the present invention pertains to chairs, especially office chairs, of the type comprising: a stationary box-shaped body fixed onto a supporting base, an oscillating support hinged onto said body and supporting the seat, and a mechanical device for locking/unlocking the oscillating support, and therefore the seat, with respect to the stationary body.
  • the locking/unlocking device is used as a selector to vary the horizontal arrangement of the oscillating support and to establish correspondingly many positions of the seat, for a more comfortable and handier use of the chair.
  • Locking/unlocking devices with such a function have already been proposed, placed and operating between the fixed box-body and the oscillating support and controlled by a control lever through a rigid connecting tie-rod.
  • the selector device proposed herein is basically as claimed in claim 1.
  • the oscillating unit for chairs essentially comprises a stationary box-body 10, an oscillating support 11 for the seat and an oscillating support for the backrest 12.
  • the box-body 10 has a fixed arrangement. It is fixed to the top of a supporting upright 13 - see Fig. 2 - that rises up from a base (not shown).
  • This upright usually consists of a so-called gas spring extending in height through the control of a lever 14 fitted on one side of the box-body.
  • the oscillating support 11 of the seat is hinged, at its front portion, to a front portion of the fixed box-body 10 with a shaft 15 oriented transversely to the seat - see Fig. 1 - and so that said support extends protruding backwards with the possibility of oscillating over the fixed body 10 opposed by a spring 11'.
  • the oscillating support 12 for the backrest is fixedly connected to the rear portion of the support of the seat 11 by means of concentric side pins 16 parallel to the oscillating shaft 15 and so that the two supports 11, 12 can oscillate together in response to the oscillation of one of them.
  • the backrest support 12 is also hinged to the fixed box-body 10 on a transverse shaft 17 parallel to the oscillating shaft 15 of the seat support 11.
  • the hinge shaft 17 is fixed to the support of the backrest 12 and extends in slotted or eccentric holes 18 obtained in the walls of the fixed box-body 10 for the support 12 to slide in relation to said body after the joint oscillations with the seat support 11.
  • a selector device 20 is provided such as to lock said support, and with it the support of the backrest 12, in several positions and thereby allow changing the tilt of the seating elements on the box body that stays fixed.
  • the selector device comprises a toothed block 21 and a hooking element 22 which are adjacent and interacting.
  • the block 21 is fixed to the bottom face of the seat support 11 - see Fig. 3 - and has a number of horizontal positioning teeth 23 spaced in height.
  • the hooking element 22 is fitted oscillating on an axis 22' in the fixed box-body 10 for its angular movement towards and away from the block 21.
  • the hooking element 22 has at least one tooth 24 turned towards and destined to combine with the positioning teeth 23 of said fixed block.
  • the hooking element 22 is connected at one end of a rigid tie-rod 25 whose opposite end is connected to a control lever through a pre-selection connecting rod 27.
  • Said control lever 26 is to the side of the fixed body 10, on the opposite side to the lever 14 controlling the height of the seat through the extending upright 13.
  • the pre-selection connecting rod 27 is not keyed, but is free on the control lever 26 and is held axially by an eccentric support 28 which is fixed to the control lever 26.
  • Said pre-selection connecting rod 27 has a first arm that is connected to the rigid tie-rod 25, a second arm turned in the opposite direction to the first one, and a central neck that supports a connecting spring 29 of the helical type whose two ends are held by opposite sides of the second arm and of the eccentric support 28 so that the spring is pre-loaded.
  • the eccentric support 28 fixed to the lever 26 has a lobe 28' designed to interact alternately with two loops of an elastic check element 30 designed to define two positions of the lever A-B - see Fig. 4..
  • the arrangement of the selector device 20 is clear along with its possibility to interact with the oscillating support 11 to lock the latter in several positions of tilt. It is sufficient to turn the control lever 26 to lock and unlock the device 20 by means of the tie-rod 25. Then, a movement of the tie-rod 25 in the direction of the arrow F in Fig. 1 tends to move the hooking element 22 further away from the toothed block 21 so as to release the tooth 24 of the first from the teeth 23 of the second. However, the movement of the hooking element 22 is not simultaneous with the rotation of the control lever 26, but delayed since the teeth 23, 24 are still engaged at least for the load weighing on the seat and therefore on the joined elements 21, 22.
  • the pre-selection connecting rod 27 and the tie-rod 25 connected to it are not moved by the control lever 26 directly, but indirectly through the eccentric support 28 and the connecting spring 29.
  • the operation of the control lever 26 causes the eccentric support to rotate from position A to position B - see Fig. 4 - and the spring 29 to load, whose action, in its turn, will cause the connecting rod 27 to rotate and the tie-rod 25 to move in the direction of moving the hooking element 22 away from the toothed block 21.

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)
EP95830527A 1995-04-14 1995-12-20 Dispositif pour fixer le support oscillateur d'un siège dans différentes positions Withdrawn EP0737431A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBS950035 1995-04-14
IT95BS000035A IT1278943B1 (it) 1995-04-14 1995-04-14 Dispositivo per il bloccaggio in varie posizioni del supporto oscillante del sedile di sedie

Publications (1)

Publication Number Publication Date
EP0737431A1 true EP0737431A1 (fr) 1996-10-16

Family

ID=11345511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95830527A Withdrawn EP0737431A1 (fr) 1995-04-14 1995-12-20 Dispositif pour fixer le support oscillateur d'un siège dans différentes positions

Country Status (3)

Country Link
EP (1) EP0737431A1 (fr)
CA (1) CA2165610A1 (fr)
IT (1) IT1278943B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0954997A3 (fr) * 1998-05-05 2000-11-22 CO.FE.MO. S.p.A. Dispositif de réglage synchronisé d'un siège et d'un dossier d'une chaise
EP1447027A1 (fr) * 2003-02-12 2004-08-18 O.M.S. S.p.A. Dispositif mécanique, notamment pour déplacer les sièges et dossiers d'une chaise
CN110013132A (zh) * 2019-05-17 2019-07-16 李伟强 摇靠式摇椅

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3638273A1 (de) * 1986-10-13 1988-04-21 Thonet Geb Gmbh Sitzmoebel
EP0568233A1 (fr) * 1992-04-20 1993-11-03 Steelcase Inc. Dispositif de réglage actionné par câble
US5259663A (en) * 1990-10-24 1993-11-09 Emilio Ambasz Chair seat mounting mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3638273A1 (de) * 1986-10-13 1988-04-21 Thonet Geb Gmbh Sitzmoebel
US5259663A (en) * 1990-10-24 1993-11-09 Emilio Ambasz Chair seat mounting mechanism
EP0568233A1 (fr) * 1992-04-20 1993-11-03 Steelcase Inc. Dispositif de réglage actionné par câble

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0954997A3 (fr) * 1998-05-05 2000-11-22 CO.FE.MO. S.p.A. Dispositif de réglage synchronisé d'un siège et d'un dossier d'une chaise
EP1447027A1 (fr) * 2003-02-12 2004-08-18 O.M.S. S.p.A. Dispositif mécanique, notamment pour déplacer les sièges et dossiers d'une chaise
CN110013132A (zh) * 2019-05-17 2019-07-16 李伟强 摇靠式摇椅
CN110013132B (zh) * 2019-05-17 2023-11-24 李伟强 摇靠式摇椅

Also Published As

Publication number Publication date
CA2165610A1 (fr) 1996-10-15
IT1278943B1 (it) 1997-11-28
ITBS950035A0 (it) 1995-04-14
ITBS950035A1 (it) 1996-10-14

Similar Documents

Publication Publication Date Title
US7159943B2 (en) Adjustable office arm chair structure with articulation for the synchronous movement of the seat and the backrest
JP3689138B2 (ja) 椅子座部の傾斜調節及びロック機構
USRE34354E (en) Chair for an office or the like
WO2002032265A1 (fr) Chaise
JPH0213407A (ja) 座部分と、この座部分と回転可能に結合された背もたれと、肘掛けとを持つ車両用座席
EP0263535A2 (fr) Chaise avec siège et dossier mobile
US4787673A (en) Chair support with adjustment device
EP0737431A1 (fr) Dispositif pour fixer le support oscillateur d'un siège dans différentes positions
CA2249906A1 (fr) Ensemble de reglage de l'inclinaison
KR950006408B1 (ko) 시이트의 등받이 각도조절장치
MX2007008192A (es) Silla con asiento y respaldo con movimiento sincronizado.
EP0707816A1 (fr) Dispositif de sélection pour arrêter un support oscillant d'une chaise en différentes positions
JPH10262780A (ja) 椅子及び椅子型マッサージ機
JP4771190B2 (ja) リクライニングチェア
EP0091936B1 (fr) Mecanisme basculant pour une chaise
JPH0330530B2 (fr)
JPH0120927Y2 (fr)
EP0693265A1 (fr) Dispositif de blocage du dossier d'un fauteuil avec réglage synchronisé du siège et du dossier
IES58057B2 (en) A chair tilting mechanism
JPH0750996Y2 (ja) アームレスト付きシートバックのフレーム構造
JP4626929B2 (ja) 椅子
US897282A (en) Seat.
JPH032196Y2 (fr)
JPS6342845Y2 (fr)
JP3752581B2 (ja) 椅子

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES GB

17P Request for examination filed

Effective date: 19970329

17Q First examination report despatched

Effective date: 19991027

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20000307