WO1990014031A1 - Chaise pivotante a siege inclinable et mecanisme prevu a cet effet - Google Patents

Chaise pivotante a siege inclinable et mecanisme prevu a cet effet Download PDF

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Publication number
WO1990014031A1
WO1990014031A1 PCT/US1990/002810 US9002810W WO9014031A1 WO 1990014031 A1 WO1990014031 A1 WO 1990014031A1 US 9002810 W US9002810 W US 9002810W WO 9014031 A1 WO9014031 A1 WO 9014031A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
boss
ball member
ball
bearing plate
Prior art date
Application number
PCT/US1990/002810
Other languages
English (en)
Inventor
Yoav Cohen
Original Assignee
Tridec Iii Corporation
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
Priority claimed from IL90352A external-priority patent/IL90352A0/xx
Priority claimed from IL92757A external-priority patent/IL92757A0/xx
Application filed by Tridec Iii Corporation filed Critical Tridec Iii Corporation
Publication of WO1990014031A1 publication Critical patent/WO1990014031A1/fr

Links

Classifications

    • 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
    • A47C3/18—Chairs or stools with rotatable seat
    • 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
    • A47C1/027—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 clamps or friction locking members

Definitions

  • the present invention concerns a swivel chair suitable, for example, for office use, and aims at providing such a chair in which the seat is tiltable and may be fixed at a desired tilt without hampering its swivelling capacity.
  • the invention provides a reclining swivel chair having a seat aind back and comprising in combination: i ) a central post supported by a base portion and carrying at its top end a ball member rigidly mounted thereon; ii ) a seat-bearing plate having upper and lower faces and bearing the seat on its upper face; i ⁇ ) a boss projecting downward from the lower face of said seat-bearing plate and having a spherical socket receiving said ball member of the central post to form therewith a ball-and-socket joint whereby said seat-bearing plate is capable of articulation by way of swivelling and tilting; iv) a hoop member around said boss and associated with manually operable means for tensioning the hoop member into a locking position in which said boss is locked on said ball member and a releasing position in which said boss can freely be articulated around said ball member; and v) ball-bearing means within said ball-and-socket joint to enable
  • the ball member comprises on its periphery stops which limit the extent of articulation of said ball-and-socket joint and consequently the extent to which the seat may be tilted.
  • the said central post is associated with means for adjustment of the height of the seat.
  • the said central post of the chair is associated with a pneumatic or hydraulic system which upon actuation raises and lowers the seat at will.
  • the invention also provides a tilting and swivel mechanism as defined above.
  • Fig. 1 is a front view of a reclining swivel chair according to the invention
  • Fig. 2 is a rear view of the chair of Fig. 1;
  • Fig. 3 is a first side view of the chair of Fig. 1;
  • Fig- 4 is a second side view of the chair of Fig. 1;
  • Fig. 5 is a bottom view of the chair of Figs. 1 to 4 with the center post and base portion being removed;
  • Fig- 6 is a bottom view of the seat-bearing plate in a chair of Figs. 1 to 4 drawn to a larger scale;
  • Fig. 7 is a section along line VII-VII of Fig. 6;
  • Fig. 8 is a section along line VIII-VIII of Fig. 6; Fig- 9 is a section along line IX-IX of Fig. 8; Fig. 10 is a section along line X-X of Fig. 6; and Fig. 11 is a section along line XI-XI of Fig. 10.
  • a reclining swivel chair according to the invention comprises a seat 1 fastened onto a seat-bearing plate 2 with interposition of a plurality of spacers 3.
  • the seat-bearing plate 2 is borne by a central post 4 whose lower part is held by a base portion 5 comprising three feet 6 each fitted with a castor wheel 7.
  • a gripper assembly 8 Connected to base plate 2 is a gripper assembly 8 holding a prismatic rod 9 supporting a back 10.
  • the reclining swivelling chair according to the invention here shown further comprises levers for the following manipulations: lever 11 for the actuation of a hydraulic system by which the level of the seat assembly 1, 2 is adjustable; lever 12 for locking and unlocking gripper assembly 8 for vertical adjustment of the back 10; lever 13 for locking and unlocking a hoop surrounding a ball-and- socket joint between the seat-bearing plate and the central post thereby to enable tilting of the seat; and lever 14 for the adjustment of the angular position of the back 10.
  • lever 11 for the actuation of a hydraulic system by which the level of the seat assembly 1, 2 is adjustable
  • lever 12 for locking and unlocking gripper assembly 8 for vertical adjustment of the back 10
  • lever 13 for locking and unlocking a hoop surrounding a ball-and- socket joint between the seat-bearing plate and the central post thereby to enable tilting of the seat
  • lever 14 for the adjustment of the angular position of the back 10.
  • the central post 4 has an upper tapering portion 17 which fits snuggly into a correspondingly shaped lower bore of a ball member 18 located within a spherical socket in a downward depending boss 19 of the seat-bearing plate 2.
  • the upper end of the tapering end portion 17 of central post 4 bears an actuator 20 of a hydraulic system capable of lifting and lowering post 4.
  • Lever 11 which has a double bent shape as shown in Fig. 7 is hinged on a pivot 21 located within a casing 22.
  • the first end portion of lever 11 bears a handle 23.
  • the second end portion 24 of lever 11 is located within a recess
  • the hydraulic system associated with actuator 20 is of a kind known per se and is so designed that when handle 11-is pulled up pin 26 with ' head
  • boss 19 is surrounded by a hoop 30 whose terminal portions 31 and 32 are associated with an eccenter 33 forming the terminal portion of the lever 13 which at its opposite end carries a handle 34, lever 13 is swingable about a pivot 35.
  • a ball 32 cooperating with a racing 33 of boss 19. Owing to such cooperation there is ensured a smooth swivel of the seat assembly around the central post 4 regardless of any tilt of the former.
  • Figs. 8 and 9 show the gripper assembly by which rod 9 is held.
  • rod 9 is gripped by jaws 36 and 37 of which the former is the back wall and the latter the front wall of the assembly.
  • Jaw 37 is wedge-shaped and has a recess 31 cooperating with a ball 39 held within a spherical socket 40 in an end portion 41 of lever 12.
  • Lever 12 is hinged on a pivot 43 which is journalled in a pair of lugs 44 (only one of which is shown in Fig. 8).
  • Gripper assembly 8 comprises two integral brackets 45, 46, the latter comprising a slot 47 for the passage of lever 12. Jaw 37 is swingable about a pivot 48 journalled in brackets 45 and 46.
  • the seat-bearing plate 2 has two integral downward depending wall members 48 and 49 on which the gripper 8 is hingedly mounted by means of an axle 50.
  • a spring 51 coiled around axle 50 has its two free ends on the one hand and its loop portion 52 on the other hand suitably arrested such that sleeve 8 with rod 9 and back 10 are tiltable about axle 50 against the action of spring 51.
  • first shaft 53 (see Figs.6, 8 and 9) and a second shaft 54 (see Fig. 10).
  • a plurality of link members 55 engage on the one hand the first shaft 53 by means of snuggly fitting holes (see Fig. 11) and on the other hand near their other ends the second shaft 54 by means of an oblong axial slot 56 so as to be axially displaceable relative to shaft 54.
  • a spacer disc 57 which is mounted on shaft 54 by a snuggly fitting central hole.
  • shaft 54 On one end of shaft 54 there is keyed a retainer member 57 accommodated within a bore in wall member 48 so as to be shiftable therein.
  • shaft 54 Near the opposite end shaft 54 comprises a plate 59 and a helical spring 60 is coiled around the end portion of shaft 54 so as to be located within a socket 61 of a boss 62 of wall member 49. In the position shown in Fig. 10 spring 60 is relaxed.
  • shaft 54 On the outer side of plate 59 shaft 54 comprises a finger 63 whose end portion fits into a suitably shaped recess of a push bar 64 which forms an integral part of lever 14.
  • lever 14 At its inner end lever 14 is hingedly mounted on an axle 65 (see Fig. 6) journalled in brackets 66 and 67 of wall member 49.
  • axle 65 At its outer end lever 14 is fitted with a handle 68.
  • the glass fibres are about 4.5 cm long.
  • the above compounded plastic material was prepared by first making the following mixture:
  • polyamide 6:6 pellets 60-65 RV, Du Pont) - 58.4% ethylene-propylene-methyl rubber
  • the kneader was fitted with a strand dye and the discharged liquid mixture was forced therethrough.
  • the so-extruded strands were passed through a quencher and then pelleted.
  • the resulting pellets were dried and were then ready for injection moulding.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

L'invention concerne une chaise pivotante inclinable dans laquelle le siège (1) est relié à un support central (4) par une articulation sphérique (18, 19), de préférence en matière plastique, laquelle assure à la fois l'inclinaison et le pivotement. On peut fixer ledit siège (1) dans une inclinaison donnée, au moyen d'un mécanisme (30) serrant la pince (19) à la bille (18), l'ampleur de l'inclinaison étant limitée par des éléments d'arrêt (34).
PCT/US1990/002810 1989-05-19 1990-05-17 Chaise pivotante a siege inclinable et mecanisme prevu a cet effet WO1990014031A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
IL90352A IL90352A0 (en) 1989-05-19 1989-05-19 Swivel chair with tiltable seat and a mechanism therefor
IL090352 1989-05-19
IL092757 1989-12-18
IL92757A IL92757A0 (en) 1989-12-18 1989-12-18 Compounded plastic material
US45790589A 1989-12-27 1989-12-27
US457,905 1989-12-27

Publications (1)

Publication Number Publication Date
WO1990014031A1 true WO1990014031A1 (fr) 1990-11-29

Family

ID=27271389

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/002810 WO1990014031A1 (fr) 1989-05-19 1990-05-17 Chaise pivotante a siege inclinable et mecanisme prevu a cet effet

Country Status (2)

Country Link
AU (1) AU5833690A (fr)
WO (1) WO1990014031A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499487A1 (fr) * 1991-02-15 1992-08-19 Ashfield Engineering Company Wexford Limited Mécanisme d'ajustage pour meubles
EP0579097A1 (fr) * 1992-07-15 1994-01-19 Lineager S.R.L. Articulation à rotule avec blocs d'amortissement pour raccorder l'assise à la colonne de support d'un siège
EP0648451A2 (fr) * 1993-10-14 1995-04-19 SIFA Sitzfabrik GmbH Dispositif de blocage pour supports de sièges, notamment pour chaises tournantes
FR2725885A1 (fr) * 1994-10-25 1996-04-26 Guy Fressenon International Banquette piano a rotation controlee
GB2298028A (en) * 1995-02-15 1996-08-21 Ashfield Eng Co An actuator for a chair adjustment mechanism lock
WO1999009861A1 (fr) * 1997-08-25 1999-03-04 Sylve Moheim Chaise de travail
EP1055831A1 (fr) * 1999-05-07 2000-11-29 HILTI Aktiengesellschaft Patin de rail pour système de coupe de diamant
GB2366743A (en) * 2000-09-02 2002-03-20 Jacqueline Kathleen Edmunds Exercise device for stomach muscles
EP1197168A2 (fr) 2000-10-12 2002-04-17 Vitra Patente AG Palier pour une chaise
WO2005065491A1 (fr) * 2004-01-07 2005-07-21 Advinova Gmbh Siege dynamique
ITPN20080067A1 (it) * 2008-09-01 2010-03-02 Alessandro Marchello "supporto girevole per mobili e simili"
WO2011110877A3 (fr) * 2010-03-12 2011-11-03 Nagy Zoltan Chaise d'exercice
DE102010047323A1 (de) 2010-10-01 2012-04-05 Sandra Schlöffel Sitzlagrung
WO2012057639A1 (fr) * 2010-10-26 2012-05-03 Tadeusz Mazur Centrum Rehabilitacji Élément de mobilier permettant de s'asseoir
WO2018054731A1 (fr) * 2016-09-20 2018-03-29 VS Vereinigte Spezialmöbelfabriken GmbH & Co. KG Siège
CN112056832A (zh) * 2020-06-24 2020-12-11 浙江圣奥家具制造有限公司 一种具有复位球铰结构的万向摇摆座椅

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US420968A (en) * 1890-02-11 Homer tj
US730690A (en) * 1902-02-28 1903-06-09 Philip C Palmer Adjustable chair or table.
US916286A (en) * 1908-01-10 1909-03-23 William C Evans Camera-tripod.
US2971770A (en) * 1958-03-24 1961-02-14 Gen Motors Corp Ball joint assembly for vehicle wheel suspension
US3711054A (en) * 1969-06-19 1973-01-16 F Bauer Continuously adjustable lifting devices
US4072288A (en) * 1975-06-10 1978-02-07 Stabilus Gmbh Chair with pneumatically adjustable seat height and back support inclination
DE2925520A1 (de) * 1979-06-25 1981-01-15 Mauser Waldeck Gmbh Drehsessel
US4605334A (en) * 1982-11-17 1986-08-12 Ari Associates, Inc. Linkage mechanism for coupling two movable members
US4796508A (en) * 1986-07-31 1989-01-10 Hoshino Gakki Co., Ltd. Musical instrument support fixture
US4807841A (en) * 1988-03-22 1989-02-28 Serge Abend Omnidirectionally tilting and swivelling support mechanism for chairs or the like

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US420968A (en) * 1890-02-11 Homer tj
US730690A (en) * 1902-02-28 1903-06-09 Philip C Palmer Adjustable chair or table.
US916286A (en) * 1908-01-10 1909-03-23 William C Evans Camera-tripod.
US2971770A (en) * 1958-03-24 1961-02-14 Gen Motors Corp Ball joint assembly for vehicle wheel suspension
US3711054A (en) * 1969-06-19 1973-01-16 F Bauer Continuously adjustable lifting devices
US4072288A (en) * 1975-06-10 1978-02-07 Stabilus Gmbh Chair with pneumatically adjustable seat height and back support inclination
DE2925520A1 (de) * 1979-06-25 1981-01-15 Mauser Waldeck Gmbh Drehsessel
US4605334A (en) * 1982-11-17 1986-08-12 Ari Associates, Inc. Linkage mechanism for coupling two movable members
US4796508A (en) * 1986-07-31 1989-01-10 Hoshino Gakki Co., Ltd. Musical instrument support fixture
US4807841A (en) * 1988-03-22 1989-02-28 Serge Abend Omnidirectionally tilting and swivelling support mechanism for chairs or the like

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423595A (en) * 1991-02-15 1995-06-13 Ashfield Engineering Company Wexford Limited Adjustment mechannism for locking relatively movable parts of furniture
EP0499487A1 (fr) * 1991-02-15 1992-08-19 Ashfield Engineering Company Wexford Limited Mécanisme d'ajustage pour meubles
EP0579097A1 (fr) * 1992-07-15 1994-01-19 Lineager S.R.L. Articulation à rotule avec blocs d'amortissement pour raccorder l'assise à la colonne de support d'un siège
US5588706A (en) * 1993-10-14 1996-12-31 Sifa Sitzfabrik Gmbh Control mechanism for the seat carriers of chairs, especially swivel chairs
EP0648451A3 (fr) * 1993-10-14 1995-12-27 Sifa Sitzfabrik Gmbh Dispositif de blocage pour supports de sièges, notamment pour chaises tournantes.
EP0648451A2 (fr) * 1993-10-14 1995-04-19 SIFA Sitzfabrik GmbH Dispositif de blocage pour supports de sièges, notamment pour chaises tournantes
FR2725885A1 (fr) * 1994-10-25 1996-04-26 Guy Fressenon International Banquette piano a rotation controlee
GB2298028A (en) * 1995-02-15 1996-08-21 Ashfield Eng Co An actuator for a chair adjustment mechanism lock
WO1996025070A1 (fr) * 1995-02-15 1996-08-22 Ashfield Engineering Company Wexford Limited Dispositif de commande pour un mecanisme de blocage monte sur une chaise
US5863099A (en) * 1995-02-15 1999-01-26 Ashfield Engineering Company Wexford Limited Actuator for a chair mechanism lock
GB2298028B (en) * 1995-02-15 1999-06-09 Ashfield Eng Co A lock for a chair adjustment mechanism
WO1999009861A1 (fr) * 1997-08-25 1999-03-04 Sylve Moheim Chaise de travail
JP4531928B2 (ja) * 1999-05-07 2010-08-25 ヒルティ アクチエンゲゼルシャフト 固定装置
EP1055831A1 (fr) * 1999-05-07 2000-11-29 HILTI Aktiengesellschaft Patin de rail pour système de coupe de diamant
JP2000334730A (ja) * 1999-05-07 2000-12-05 Hilti Ag 固定装置
US6361238B1 (en) 1999-05-07 2002-03-26 Hilti Aktiengesellschaft Attachment element for securing a rail foot
GB2366743A (en) * 2000-09-02 2002-03-20 Jacqueline Kathleen Edmunds Exercise device for stomach muscles
EP1197168A3 (fr) * 2000-10-12 2003-07-30 Vitra Patente AG Palier pour une chaise
EP1197168A2 (fr) 2000-10-12 2002-04-17 Vitra Patente AG Palier pour une chaise
WO2005065491A1 (fr) * 2004-01-07 2005-07-21 Advinova Gmbh Siege dynamique
ITPN20080067A1 (it) * 2008-09-01 2010-03-02 Alessandro Marchello "supporto girevole per mobili e simili"
WO2011110877A3 (fr) * 2010-03-12 2011-11-03 Nagy Zoltan Chaise d'exercice
DE102010047323B4 (de) * 2010-10-01 2015-12-31 Sandra Schlöffel Sitzlagerung
DE102010047323A1 (de) 2010-10-01 2012-04-05 Sandra Schlöffel Sitzlagrung
WO2012057639A1 (fr) * 2010-10-26 2012-05-03 Tadeusz Mazur Centrum Rehabilitacji Élément de mobilier permettant de s'asseoir
CN103209616A (zh) * 2010-10-26 2013-07-17 塔德乌什·梅热医疗康复中心 可坐的家具单元
KR101556833B1 (ko) 2010-10-26 2015-10-01 타데우시 마주르 센트럼 레하빌리탁지 ＂즈드로위＂ 앉음용 가구 유닛
WO2018054731A1 (fr) * 2016-09-20 2018-03-29 VS Vereinigte Spezialmöbelfabriken GmbH & Co. KG Siège
US10772427B2 (en) 2016-09-20 2020-09-15 Vs Vereinigte Spezialmoebelfabriken Gmbh & Co. Kg Seating furniture
CN112056832A (zh) * 2020-06-24 2020-12-11 浙江圣奥家具制造有限公司 一种具有复位球铰结构的万向摇摆座椅

Also Published As

Publication number Publication date
AU5833690A (en) 1990-12-18

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