WO2002058514A1 - Chairs - Google Patents
Chairs Download PDFInfo
- Publication number
- WO2002058514A1 WO2002058514A1 PCT/GB2002/000041 GB0200041W WO02058514A1 WO 2002058514 A1 WO2002058514 A1 WO 2002058514A1 GB 0200041 W GB0200041 W GB 0200041W WO 02058514 A1 WO02058514 A1 WO 02058514A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chair according
- abutment member
- chair
- shaped
- positionally adjustable
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
- A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
- A47C31/126—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for 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
- A47C1/03255—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
Definitions
- This invention relates to a chair, such as an office chair, of the kind
- the seat part can move relative to the base part, against a spring force
- a known chair of this kind, as described in DE 4313301 C has a
- the spring force is provided by a generally vertical spring
- the seat part can tilt through an angle
- the back part can tilt through an angle which
- a desired adjusted position can be readily attained and maintained.
- An object of the present invention is to enable an adjustment of
- a base part a seat part mounted on the base part, and a back part
- the seat part can move relative to the base part against a spring force
- spring force is provided by a main spring means arranged to act in
- the abutment member is
- the shaped abutment surface may be generally curved or arcuate or of any
- a roller or other contact structure may be provided at the said one
- the abutment member comprises a link pivotally mounted on an intermediate member, the pivotal movement of the
- the link may be pivotally mounted on the intermediate member by
- the arrangement is such that a retention device is provided
- a shaped cam member may be provided which is rotatable in
- the cam member may have a cam surface which coacts with the
- abutment member and the cam may be mounted on a spindle or other
- a latch may be provided, e.g.
- the abutment member may be linked
- a spring means may be provided to return the movable member from an adjusted position to a pre-adjusted position
- the said one end of the main spring means is a
- the main spring means and/or supplementary spring means may
- spring means such as a hydraulic or pneumatic ram or other kind
- the seat part and the base part may have structures
- the back part may be pivotally mounted on the base part and the
- rearward links may be connected to the base part via the back part.
- the main spring means may be connected to the base part via a
- connection member which may comprise a pivotal arm.
- the chair may be an office chair in which case the base part may be
- seat part may support the usual seat cushion; and the back part may support the usual seat cushion
- the invention also provides a mechanism, for the chair described
- said abutment member being positionally adjustable for adjustment of
- the variation in spring resistance is determined by the profile of the shaped
- the mode or pattern of variation can be
- the faceted snail cam can help prevent unwanted positional change
- the chair mechanism varies due to a person sitting on the chair shifting his or her weight.
- FIGS. 1 & 2 are schematic representations of two prior art chair
- Figure 3 is a schematic representation of one form of a chair
- Figure 4 is a schematic representation of an alternative form of
- FIG. 5 is a more detailed top perspective view of the
- FIGS. 6-9 are detailed side views of the mechanism of the chair of
- FIGS. 10 & 1 1 are detailed side views of an alternative mechanism in
- this shows an office chair having a seat part 1 ,
- the base part 2 comprises a plate structure mounted at the top of a
- the seat part 1 comprises a frame structure which supports a padded seat cushion.
- the back part 3 comprises a rigid L-shaped member having a lower
- the base part 2 has a forward extension with a pivot axle 7 fixed
- Two spaced apart side-by-side link arms 8 have rearward ends which
- the frame structure of the seat part has rigidly fixed depending links
- the lower ends of the forward links 1 1 are pivotally connected to the
- rollers 8a have mounted thereon rollers 8a and these engage respective
- the movable members 13 are generally segmental shaped solid
- rollers 8a ride on these surfaces and are held
- Two cams 1 5 are mounted on a spindle 15a rotatable about a
- the cams have shaped 'snail' surfaces which press against rear sides of the cams
- the movable members are asymmetric as shown so
- a latch plate is movable into engagement with the spindle 15a to lock
- the spindle 15a projects outwardly at one side through an arcuate
- seat cushion causes this to move backwards with the rear end tilting down
- the spring force of the springs 10 depends on the length and line of
- the proportion and dispositions of the members can be adjusted by
- members 13 can be changed by substituting different members 13.
- Figures 6 & 8 show forward positions at low and high tension
- the end of the cam spindle 15a projects at a convenient position
- the main part of the mechanism namely the base plate 2, springs 10,
- link arms 8, box structure 5 and associated components can be made as a
- compression spring (not shown) is provided beneath the arm 17 between
- a curved toothed rack 18 engageable with a pawl is provided
- rollers 8a are
- FIGS 10 and 1 1 show an alternative embodiment wherein the
- the links 21 move through arcs pivoting about their contact points
- Figures 10 & 1 1 show respectively low and high tension
- the arc profiles can be changed by changing the links 21 .
- the links 21 provide a simpler
- rollers 8a are used
- rollers 8a or spindle may be used for both.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02734863A EP1353584B1 (en) | 2001-01-06 | 2002-01-07 | Chairs |
GB0318258A GB2389522B (en) | 2001-01-06 | 2002-01-07 | Spring mechanism for chair with adjustable back |
DE60221793T DE60221793T2 (en) | 2001-01-06 | 2002-01-07 | CHAIRS |
CA2472046A CA2472046C (en) | 2001-01-06 | 2002-01-07 | Chairs |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0100388.8 | 2001-01-06 | ||
GBGB0100388.8A GB0100388D0 (en) | 2001-01-06 | 2001-01-06 | Chairs |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002058514A1 true WO2002058514A1 (en) | 2002-08-01 |
Family
ID=9906386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2002/000041 WO2002058514A1 (en) | 2001-01-06 | 2002-01-07 | Chairs |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1353584B1 (en) |
AT (1) | ATE369769T1 (en) |
CA (1) | CA2472046C (en) |
DE (1) | DE60221793T2 (en) |
GB (2) | GB0100388D0 (en) |
WO (1) | WO2002058514A1 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005006919A1 (en) * | 2003-07-11 | 2005-01-27 | Völkle Bürostühle GmbH | Chair |
WO2006106380A1 (en) * | 2005-04-06 | 2006-10-12 | Donati S.P.A. | Synchronisation mechanism for chairs or armchairs |
WO2006114250A1 (en) | 2005-04-28 | 2006-11-02 | Imarc S.P.A. | Device for adjusting the reclinning force in office chair mechanisms |
WO2009127862A1 (en) * | 2008-04-17 | 2009-10-22 | Simclar Seating Technologies Limited | Chair back tilt tensioning |
WO2010094470A2 (en) | 2009-02-17 | 2010-08-26 | Uhlenbrock Consulting | Seating furniture, in particular office swivel chair |
WO2010103554A1 (en) * | 2009-03-10 | 2010-09-16 | Effe Tre S.R.L. | Support device of a chair with tilting backrest |
EP2233043A1 (en) * | 2008-01-16 | 2010-09-29 | Kokuyo Co., Ltd. | Chair |
CN102056512A (en) * | 2008-06-05 | 2011-05-11 | 株式会社内田洋行 | Chair with tilting backrest |
US9072383B2 (en) | 2012-08-16 | 2015-07-07 | L&P Property Management Company | Modular chair mechanism with self-weighing |
US11096497B2 (en) | 2015-04-13 | 2021-08-24 | Steelcase Inc. | Seating arrangement |
US11109683B2 (en) | 2019-02-21 | 2021-09-07 | Steelcase Inc. | Body support assembly and method for the use and assembly thereof |
US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
US11324325B2 (en) | 2015-04-13 | 2022-05-10 | Steelcase Inc. | Seating arrangement |
US11357329B2 (en) | 2019-12-13 | 2022-06-14 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013004253A1 (en) * | 2011-07-01 | 2013-01-10 | L&P Property Management Company | Tilt mechanism for a chair and chair |
PL2886015T3 (en) | 2013-12-17 | 2017-01-31 | Donati S.P.A. | Chair with adjustable backrest |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3537203A1 (en) * | 1984-10-24 | 1986-04-24 | Klöber GmbH & Co, 7770 Überlingen | Work chair with inclination mechanism for seat and back |
US4962962A (en) | 1987-01-09 | 1990-10-16 | Voko Franz Vogt & Co. | Piece of seating furniture |
DE4313301C2 (en) | 1993-04-23 | 1995-12-21 | Simon Desanta | chair |
EP0960586A2 (en) * | 1998-05-27 | 1999-12-01 | Röder, Peter | Chair, particularly office chair |
-
2001
- 2001-01-06 GB GBGB0100388.8A patent/GB0100388D0/en not_active Ceased
-
2002
- 2002-01-07 WO PCT/GB2002/000041 patent/WO2002058514A1/en active IP Right Grant
- 2002-01-07 DE DE60221793T patent/DE60221793T2/en not_active Expired - Lifetime
- 2002-01-07 CA CA2472046A patent/CA2472046C/en not_active Expired - Fee Related
- 2002-01-07 EP EP02734863A patent/EP1353584B1/en not_active Expired - Lifetime
- 2002-01-07 AT AT02734863T patent/ATE369769T1/en not_active IP Right Cessation
- 2002-01-07 GB GB0318258A patent/GB2389522B/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3537203A1 (en) * | 1984-10-24 | 1986-04-24 | Klöber GmbH & Co, 7770 Überlingen | Work chair with inclination mechanism for seat and back |
US4709962A (en) * | 1984-10-24 | 1987-12-01 | Kloeber Gmbh & Co. | Work chair with a tilting mechanism for seat squab and backrest |
US4962962A (en) | 1987-01-09 | 1990-10-16 | Voko Franz Vogt & Co. | Piece of seating furniture |
DE4313301C2 (en) | 1993-04-23 | 1995-12-21 | Simon Desanta | chair |
EP0960586A2 (en) * | 1998-05-27 | 1999-12-01 | Röder, Peter | Chair, particularly office chair |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005006919A1 (en) * | 2003-07-11 | 2005-01-27 | Völkle Bürostühle GmbH | Chair |
WO2006106380A1 (en) * | 2005-04-06 | 2006-10-12 | Donati S.P.A. | Synchronisation mechanism for chairs or armchairs |
US7364233B2 (en) | 2005-04-06 | 2008-04-29 | Donati S.P.A. | Synchronisation mechanism for chairs or armchairs |
WO2006114250A1 (en) | 2005-04-28 | 2006-11-02 | Imarc S.P.A. | Device for adjusting the reclinning force in office chair mechanisms |
EP2233043A1 (en) * | 2008-01-16 | 2010-09-29 | Kokuyo Co., Ltd. | Chair |
EP2233043A4 (en) * | 2008-01-16 | 2011-10-19 | Kokuyo Kk | Chair |
WO2009127862A1 (en) * | 2008-04-17 | 2009-10-22 | Simclar Seating Technologies Limited | Chair back tilt tensioning |
CN102056512A (en) * | 2008-06-05 | 2011-05-11 | 株式会社内田洋行 | Chair with tilting backrest |
AU2010214841B2 (en) * | 2009-02-17 | 2015-04-23 | Steelcase Inc. | Seating furniture, in particular office swivel chair |
WO2010094470A2 (en) | 2009-02-17 | 2010-08-26 | Uhlenbrock Consulting | Seating furniture, in particular office swivel chair |
WO2010094470A3 (en) * | 2009-02-17 | 2011-03-24 | Uhlenbrock Consulting | Seating furniture, in particular office swivel chair |
CN102333466A (en) * | 2009-02-17 | 2012-01-25 | 乌伦布罗克咨询公司 | Seating furniture, in particular office swivel chair |
WO2010103554A1 (en) * | 2009-03-10 | 2010-09-16 | Effe Tre S.R.L. | Support device of a chair with tilting backrest |
US9072383B2 (en) | 2012-08-16 | 2015-07-07 | L&P Property Management Company | Modular chair mechanism with self-weighing |
US11096497B2 (en) | 2015-04-13 | 2021-08-24 | Steelcase Inc. | Seating arrangement |
US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
US11324325B2 (en) | 2015-04-13 | 2022-05-10 | Steelcase Inc. | Seating arrangement |
US11553797B2 (en) | 2015-04-13 | 2023-01-17 | Steelcase Inc. | Seating arrangement |
US11109683B2 (en) | 2019-02-21 | 2021-09-07 | Steelcase Inc. | Body support assembly and method for the use and assembly thereof |
US11602223B2 (en) | 2019-02-21 | 2023-03-14 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
US11910934B2 (en) | 2019-02-21 | 2024-02-27 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
US11357329B2 (en) | 2019-12-13 | 2022-06-14 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
US11786039B2 (en) | 2019-12-13 | 2023-10-17 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
US11805913B2 (en) | 2019-12-13 | 2023-11-07 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
Also Published As
Publication number | Publication date |
---|---|
GB0100388D0 (en) | 2001-02-14 |
ATE369769T1 (en) | 2007-09-15 |
EP1353584A1 (en) | 2003-10-22 |
CA2472046C (en) | 2010-04-06 |
GB0318258D0 (en) | 2003-09-10 |
GB2389522B (en) | 2004-12-08 |
EP1353584B1 (en) | 2007-08-15 |
CA2472046A1 (en) | 2002-08-01 |
DE60221793D1 (en) | 2007-09-27 |
DE60221793T2 (en) | 2008-06-05 |
GB2389522A (en) | 2003-12-17 |
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