EP0259609B1 - Stuhl - Google Patents
Stuhl Download PDFInfo
- Publication number
- EP0259609B1 EP0259609B1 EP87111319A EP87111319A EP0259609B1 EP 0259609 B1 EP0259609 B1 EP 0259609B1 EP 87111319 A EP87111319 A EP 87111319A EP 87111319 A EP87111319 A EP 87111319A EP 0259609 B1 EP0259609 B1 EP 0259609B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat
- chair
- shell
- support
- back shell
- 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.)
- Expired - Lifetime
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
-
- 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
- A47C1/03274—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 of torsion type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S297/00—Chairs and seats
- Y10S297/02—Molded
Definitions
- the invention relates to a chair, in particular an office swivel chair with an adjustable seat and an adjustable backrest connected in an articulated manner thereto, the seat and the backrest having a seat shell or a back shell provided with upholstery, and a foot having a standpipe and a support .
- a chair is known from GB-A-2143730.
- Such a known office chair has a support structure with a support frame between the support and the seat or the seat shell, this support frame being able to transmit the forces occurring in a person sitting on the chair from the seat shell or the back shell to the support.
- This substructure leads to a comparatively large construction volume and also requires a corresponding manufacturing and assembly effort.
- the narrowest possible side silhouette is often desired in such chairs.
- the object of the present invention is to provide an office chair of the type mentioned at the outset, its construction and manufacturing is simplified, but at the same time, while maintaining the usual adjustability, an overall low overall height or thickness is possible both in the seating area and in the backrest area.
- bitzschale and the back shell are connected to one another by a joint which in the separating area has joint parts which act directly on the shells and are formed by molding on the mutually facing end faces of the shells, and that the seat shell and the back shell are designed as self-supporting support parts directly connected to the support.
- the structural thickness in the area of the seat, under which the adjustment mechanism is also located can be considerably reduced, since the complex supporting substructure with a frame can be omitted by taking over the supporting function through the seat shell itself.
- the like with the standpipe. connected support a seat support part connected to the seat shell via a swivel joint and a rigid part or the like, in particular rigidly connected to the back shell. as well as a back support part connected to the seat support part via a rotary / sliding bearing.
- the seat can be adjusted around the swivel joint, with the backrest also changing the angle at the same time between seat and backrest, this movement follows.
- the back shell is formed in two parts with a pelvic or lumbar part, which preferably extends approximately over the width of the seat, and a shoulder part, the two back shell parts being pivotable relative to one another from a stop position against spring support.
- the pelvic or lumbar part at least partially takes on the function of an otherwise required back support.
- the subdivision of the back shell allows an exact adjustment to the respective sitting position of a person using the chair.
- the seat support part of the support has a spring for resetting the seat, preferably a torsion spring, at the swivel joint at its front end. Such torsion suspension can be accommodated in a space-saving manner, so that this construction also contributes to a low overall height in the seating area.
- one or more return springs supporting the seat return spring preferably pressure springs engaging on the underside, are provided between the seat shell and the back shell or the lumbar part.
- the torsion springs and the return springs together ensure that the seat and the backrest come to an upper or front position when the seat mechanism is released and the seat is relieved. Due to the division into two spring groups, the respective springs can be made comparatively small, so that this in turn also contributes to a low overall height.
- a chair 1 (FIG. 1) is designed as an office swivel chair and essentially has a base 2, a support 4 fastened to its stand tube 3, a seat 5 and a backrest 6.
- the seat 5 and the backrest 6 are provided with a removable padding 7, under which there is a seat shell 8 or a back shell 9, as can be clearly seen in FIG. 3.
- the seat shell and preferably also the back shell are designed as carrier parts directly connected to the support 4. They therefore also take on the function of a supporting substructure, so that such is not necessary in the chair according to the invention.
- the shells are arched to achieve the required strength and have bead-like stiffening formations 10 in their outer edge areas and also in the area of the intermediate surfaces.
- the stiffening formations are preferably molded on the inside, facing the padding 7, so that the shells can be smooth on the outside without disruptive projections.
- the seat shell 8 and the back shell 9 are connected to one another in their separating region 11 via joints 12.
- formations 13 are provided on the shells 8, 9 at the mutually facing end faces to form approximately flange-shaped joint parts.
- Insert pins 14 inserted from the side form the hinge axes.
- FIGS. 2 and 4 also clearly show that the shells are designed to interlock with one another at their facing ends, so that there is practically no intermediate gap in the separating region 11.
- the support 4 has a seat support part 16 which is connected to the seat shell via a swivel joint 15 and which on the other hand is connected to the standpipe 3.
- the support has a back support part 18, which is in particular rigidly connected to the back shell 9 and is connected to the other support part 16 at its end facing away from the back shell via a rotary / sliding bearing 17. 2 and 4 it is indicated that this rotary / sliding bearing essentially has a sliding slot 19 in the seat support part 16 and a cross bolt 20 extending through this slot in the back support part 18.
- This arrangement ensures, in a manner known per se, that the seat moves somewhat in the same direction with this movement when the backrest is adjusted.
- the further adjustment and locking mechanism is not shown in the drawings for the sake of simplicity.
- the seat support part 16 of the support 4 has a torsion suspension 21 at its front end at the swivel joint 15 for returning the seat to an upper position.
- This torsion suspension 21 adjusts the seat 5 about the swivel joint 15 in the direction of arrow Pf 1 (FIG. 1) when the adjustment mechanism is unlocked.
- the backrest 6 is also pivoted in the direction of the arrow Pf 2.
- Fig. 4 clearly shows that between the seat shell 8 and the back shell 9, the above-mentioned seat return movement supporting return springs 22 are provided. These are attached on the underside and designed as compression springs. They lie within a support cladding, which is omitted in FIG. 4. As already mentioned, the return springs 22 act in the same direction as the torsion spring 21. This division into several spring groups allows the individual springs to be kept very small, so that they can also be accommodated well within a flat support and adjustment mechanism.
- the backrest 6 is formed in two parts with a pelvic or lumbar part 23 and a shoulder part 24 adjoining it upwards.
- the back shell parts 23, 24 are pivotally connected to one another over a specific area.
- a spring support with springs 25 holds the shoulder part 24 against stops 26 in a forward pivoting position. When leaning against the shoulder part 24, this can then be pivoted somewhat backwards against the spring support, so that an adaptation to the respective sitting position of a user is possible.
- the back shell parts 23 and 24 are connected to one another via joints 28 located on their side edges 27.
- connection points for fastening armrests 29 which can be seen in FIG. 1 and which can be attached if necessary.
- Fig. 3 it can also be clearly seen that the pelvic or lumbar part 23 extends over the entire width of the seat.
- the seat shell 8 and the back shell 9 with the pelvic part 23 and the shoulder part 24 preferably consist of glass mat-reinforced, thermoplastic material, preferably of reinforced polypropylene. As a result, the shells can be produced in one piece in one operation.
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs Characterized By Structure (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87111319T ATE70956T1 (de) | 1986-09-08 | 1987-08-05 | Stuhl. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863630503 DE3630503A1 (de) | 1986-09-08 | 1986-09-08 | Stuhl |
DE3630503 | 1986-09-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0259609A2 EP0259609A2 (de) | 1988-03-16 |
EP0259609A3 EP0259609A3 (en) | 1988-06-22 |
EP0259609B1 true EP0259609B1 (de) | 1992-01-02 |
Family
ID=6309124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87111319A Expired - Lifetime EP0259609B1 (de) | 1986-09-08 | 1987-08-05 | Stuhl |
Country Status (4)
Country | Link |
---|---|
US (1) | US4834453A (ko) |
EP (1) | EP0259609B1 (ko) |
AT (1) | ATE70956T1 (ko) |
DE (2) | DE3630503A1 (ko) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3634055A1 (de) * | 1986-10-07 | 1988-04-14 | Inaba Seisakusho Ltd | Sitzmoebel |
CA1324313C (en) * | 1987-01-19 | 1993-11-16 | Satoshi Kabaya | Rocking chair |
DE3817761A1 (de) * | 1988-05-19 | 1989-11-30 | Roeder Gmbh | Stuhl, insbesondere arbeits- oder buerostuhl |
ATE94038T1 (de) * | 1992-01-20 | 1993-09-15 | Stoll Kg Christof | Rueckenlehne fuer einen buerostuhl. |
AU7244294A (en) * | 1993-06-02 | 1994-12-20 | Sava Cvek | Articulated support chair |
DE4327373C2 (de) * | 1993-08-14 | 1997-07-17 | Girsberger Holding Ag | Stuhl, insbesondere Bürostuhl |
GB2342036B (en) * | 1996-05-18 | 2000-05-17 | Slipcatch Ltd | Improvements in or relating to seats |
US5887946A (en) * | 1997-01-03 | 1999-03-30 | Raftery Design, Inc. | Chair with movable back support |
US5979984A (en) | 1997-10-24 | 1999-11-09 | Steelcase Development Inc. | Synchrotilt chair with forwardly movable seat |
DE29808831U1 (de) * | 1998-05-15 | 1998-08-27 | Delphi Automotive Systems Deutschland GmbH, 42369 Wuppertal | Sitz- und Kopfstützenanordnung für ein Fahrzeug |
US6027168A (en) * | 1998-06-05 | 2000-02-22 | Leggett & Platt, Inc. | Chair seat horizontal adjustment mechanism |
MXPA02005951A (es) * | 2000-10-16 | 2003-10-14 | Kokuyo Kk | Silla. |
US6609755B2 (en) * | 2001-06-15 | 2003-08-26 | Hon Technology Inc. | Ergonomic chair |
US7147285B2 (en) * | 2004-01-20 | 2006-12-12 | Tung Yu Oa Co., Ltd. | Reclining apparatus for chair |
US7458637B2 (en) * | 2004-06-10 | 2008-12-02 | Steelcase Inc. | Back construction with flexible lumbar |
US7237841B2 (en) * | 2004-06-10 | 2007-07-03 | Steelcase Development Corporation | Back construction with flexible lumbar |
CN100455434C (zh) * | 2004-09-30 | 2009-01-28 | 冷鹭浩 | 一种塑料复合板及其制造方法 |
JP4719905B2 (ja) | 2005-10-27 | 2011-07-06 | コクヨ株式会社 | 椅子 |
JP5002835B2 (ja) | 2005-10-27 | 2012-08-15 | コクヨ株式会社 | 部材の接続構造 |
JP4614088B2 (ja) * | 2005-11-11 | 2011-01-19 | コクヨ株式会社 | バネの取付構造 |
JP4747311B2 (ja) * | 2005-11-11 | 2011-08-17 | コクヨ株式会社 | 椅子 |
JP4945781B2 (ja) | 2005-11-11 | 2012-06-06 | コクヨ株式会社 | 椅子 |
US7806478B1 (en) | 2006-01-04 | 2010-10-05 | Sava Cvek | Task chair with dual tilting capabilities |
US7896439B2 (en) * | 2006-08-30 | 2011-03-01 | Itoki Corporation | Chair |
US7674215B1 (en) * | 2007-10-23 | 2010-03-09 | Brunswick Corporation | Exercise apparatus seat |
EP2252179B1 (en) | 2008-05-26 | 2012-07-11 | Steelcase Inc. | Conforming back for a seating unit |
CA2699558A1 (en) * | 2009-04-16 | 2010-10-16 | Steven Pearse | Back extension backrest |
CN201602410U (zh) * | 2010-02-04 | 2010-10-13 | 周金坤 | 一种办公休闲两用椅 |
KR101834468B1 (ko) | 2010-05-18 | 2018-03-05 | 아리아 엔터프라이시스, 인크. | 휴대용 컴팩트 접이식 가구 부품들 |
US8602501B2 (en) * | 2010-09-14 | 2013-12-10 | Herman Miller, Inc. | Backrest |
US8926017B2 (en) | 2012-09-06 | 2015-01-06 | James E. Grove | Chair with integral pivoting lumbar and seat cushion portions |
USD696545S1 (en) | 2013-07-30 | 2013-12-31 | Steelcase, Inc. | Rear surface of a chair back |
DE102015102007B3 (de) * | 2015-02-12 | 2016-07-28 | Wilkhahn Wilkening + Hahne Gmbh + Co. | Sitzmöbel |
US10194750B2 (en) | 2015-04-13 | 2019-02-05 | Steelcase Inc. | Seating arrangement |
US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
JP6826043B2 (ja) | 2015-04-13 | 2021-02-03 | スティールケース インコーポレイテッド | 着座用構成体 |
US11589678B2 (en) | 2019-01-17 | 2023-02-28 | Hni Technologies Inc. | Chairs including flexible frames |
EP3927215A4 (en) | 2019-02-21 | 2023-03-15 | Steelcase Inc. | BODY SUPPORT ASSEMBLY AND METHODS OF USE AND ASSEMBLY THEREOF |
WO2020247435A1 (en) * | 2019-06-05 | 2020-12-10 | Davis Furniture Industries, Inc. | Improved tilting chair |
US12089741B2 (en) * | 2019-06-17 | 2024-09-17 | Quali Co., Ltd. | Tiltable chair |
US11357329B2 (en) | 2019-12-13 | 2022-06-14 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2471024A (en) * | 1946-10-04 | 1949-05-24 | Roy A Cramer | Chair with tilting back and automatically shiftable seat |
US3942836A (en) * | 1974-04-22 | 1976-03-09 | Steelcase Inc. | Chair |
US3904243A (en) * | 1974-09-23 | 1975-09-09 | Krueger Metal Products | Fiberglass shell construction with screw anchor inserts |
DE2731618A1 (de) * | 1977-07-13 | 1979-01-25 | Wilkhahn Wilkening & Hahne | Sitzmoebel, insbesondere stuhl |
DE2925520A1 (de) * | 1979-06-25 | 1981-01-15 | Mauser Waldeck Gmbh | Drehsessel |
FR2533428A1 (fr) * | 1982-09-23 | 1984-03-30 | Strafor Sa | Mecanisme de siege a mouvement differentiel pour siege basculant |
GR79649B (ko) * | 1982-10-22 | 1984-10-31 | Castelli Spa | |
CH662257A5 (de) * | 1983-07-20 | 1987-09-30 | Syntech Sa | Arbeitsstuhl. |
US4560199A (en) * | 1983-07-22 | 1985-12-24 | Pamont Ag | Recliner chair |
DE8417429U1 (de) * | 1984-06-08 | 1984-09-20 | Hansen, Eckard, 9430 St. Margrethen | Punktsynchronverstelleinrichtung für Bürostühle |
FR2575051B1 (fr) * | 1984-12-21 | 1987-02-27 | Linguanotto Ets | Siege, notamment siege de travail, a plusieurs positions |
GB2159400A (en) * | 1985-05-10 | 1985-12-04 | Syba Ltd | Spring-tilt mechanism for a chair or seat |
US4709963A (en) * | 1986-12-12 | 1987-12-01 | Milsco Manufacturing Company | Adjustable office chair |
-
1986
- 1986-09-08 DE DE19863630503 patent/DE3630503A1/de active Granted
-
1987
- 1987-08-05 EP EP87111319A patent/EP0259609B1/de not_active Expired - Lifetime
- 1987-08-05 AT AT87111319T patent/ATE70956T1/de not_active IP Right Cessation
- 1987-08-05 DE DE8787111319T patent/DE3775664D1/de not_active Expired - Lifetime
- 1987-09-02 US US07/092,325 patent/US4834453A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4834453A (en) | 1989-05-30 |
ATE70956T1 (de) | 1992-01-15 |
DE3630503A1 (de) | 1988-03-10 |
DE3775664D1 (de) | 1992-02-13 |
EP0259609A2 (de) | 1988-03-16 |
DE3630503C2 (ko) | 1991-05-08 |
EP0259609A3 (en) | 1988-06-22 |
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