EP0179185A2 - Chaise, notamment chaise de bureau - Google Patents

Chaise, notamment chaise de bureau Download PDF

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Publication number
EP0179185A2
EP0179185A2 EP85102947A EP85102947A EP0179185A2 EP 0179185 A2 EP0179185 A2 EP 0179185A2 EP 85102947 A EP85102947 A EP 85102947A EP 85102947 A EP85102947 A EP 85102947A EP 0179185 A2 EP0179185 A2 EP 0179185A2
Authority
EP
European Patent Office
Prior art keywords
seat
backrest
support part
backrest support
gas spring
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.)
Granted
Application number
EP85102947A
Other languages
German (de)
English (en)
Other versions
EP0179185A3 (en
EP0179185B1 (fr
Inventor
Elke Dauphin
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.)
BUEROSITZMOEBELFABRIK FRIEDRICH-W. DAUPHIN GMBH &
Original Assignee
Buerositzmobelfabrik Friedrich-W Dauphin & Co GmbH
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 Buerositzmobelfabrik Friedrich-W Dauphin & Co GmbH filed Critical Buerositzmobelfabrik Friedrich-W Dauphin & Co GmbH
Priority to AT85102947T priority Critical patent/ATE53473T1/de
Priority to JP60235497A priority patent/JPH0644893B2/ja
Priority to ES1985289824U priority patent/ES289824Y/es
Publication of EP0179185A2 publication Critical patent/EP0179185A2/fr
Publication of EP0179185A3 publication Critical patent/EP0179185A3/de
Application granted granted Critical
Publication of EP0179185B1 publication Critical patent/EP0179185B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • A47C1/0325—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 clamps or friction locking members

Definitions

  • the invention relates to a chair, in particular an office chair, according to the preamble of patent claim 1.
  • a mechanism which ensures that when the user shifts weight, e.g. when the user leans back, an anatomically adapted inclination adjustment of the seat and backrest inclination takes place in a coordinated manner.
  • Mechanics of this type are therefore also referred to as synchronous mechanisms.
  • a generic chair, which is provided with such a synchronous mechanism, is known from DE-A-27 57 349.
  • this has the disadvantage that due to the relative movement in the inclination adjustment between the seat and backrest on the clothing of the user in the area of the backrest is perceived as a disturbing train.
  • an adjusting device is pivotally mounted about a horizontal axis on the support column of the base frame, the pivoting movement of the seat and the backrest being coordinated via a triangular link.
  • the rear end of the seat is connected to the lower end of the backrest support column via an articulated lever, this articulation point of the articulated lever being connected to the lower articulated point of the triangular link via a gas spring.
  • This means that the backrest support column is ultimately pivotally connected to it via a parallelogram joint formed by the triangular link, the articulated lever, the gas spring and a section of the seat.
  • Another parallelogram joint is formed between the triangular link and an articulated lever, which engages with one end in the region of the front edge of the seat and the other end is connected to another gas spring.
  • the known embodiment has the further disadvantage that two independent springs must be provided in order to achieve a damping effect of the inclination adjustment movement on the one hand and to achieve a sufficiently high restoring torque on the other, which makes the construction relatively complex and increases the manufacturing costs.
  • the object of the invention is to create a chair of the type mentioned above To design that a well-coordinated synchronous movement between the backrest and the seat, which is perceived by the user as pleasant, is achieved when the user shifts weight, with the aim being a functionally reliable and cost-effective construction.
  • the pivot axis is preferably arranged between the backrest support part and the seat carrier in accordance with claim 3, the movement sequence being able to be influenced by the exact position of the pivot axis.
  • the construction according to the invention basically makes it possible to make do with only a single gas spring.
  • the arrangement of the gas spring according to claim 4 ensures that such a single gas spring is particularly effective both for damping the tilting movements and for the return movements.
  • Claims 5 and 6 indicate a particularly advantageous dimensioning.
  • the locking device provided according to claim 9 can, however, be configured in a particularly simple and effective manner in an arrangement of the gas spring according to the invention, in particular also as an inexpensive, purely mechanical locking device according to claim lo.
  • FIG. 1 An office chair shown in FIG. 1 comprises a base frame 1 with a support column 2 which is connected to a seat support 4 receiving the upholstered seat 3.
  • a seat support 4 receiving the upholstered seat 3.
  • Fig. 1 only the lining 5 of the seat support 4 is shown.
  • the seat 3 is articulated on the one hand to the seat support 4 at its front end and on the other hand to the backrest support part 7.
  • the articulated connection between the seat support 4 and the backrest support part 7 is produced by a pivot pin 10 which passes through the side walls 11, 12 or 13, 14 of the backrest support part 7 or the seat support 4.
  • the backrest Nentrageteil 7 and the seat support 4 are each U-shaped in cross section, with the U-bottoms 15, 16 facing the top, i.e. towards the seat, and wherein the side walls 11, 12 of the backrest support part 7, the side walls 13, 14 of the seat support 4th partially spill over.
  • a seat bracket 19 is pivotally mounted by means of a pivot pin 17, which defines a pivot axis 18.
  • This essentially comprises an L-profile 20 with a bearing box 21 receiving the pivot pin 17 and spacers 22 to which the seat 3 is rigidly attached.
  • a cone 23 for receiving the support column 2 is rigidly fastened to the seat support 4, an actuating lever 25 for adjusting the seat height being provided by a recess 24 in this area by means of a corresponding device, not shown in detail.
  • the backrest support part 7 tapers starting from a kink edge 26 to the rear, where a guide part 27 for the backrest support column 9 is welded on.
  • a clamping screw 28 with actuating lever 29 engages in a bore 3o of the guide part 27, as a result of which the legs of the guide part 27, which is U-shaped in cross section, can be clamped to fix the backrest support column.
  • two rubber buffers 32 are attached to the U-bottom 15 of the backrest support part 7 and, on the other hand, to the rigid seat plate 31 of the seat 3.
  • a gas spring 33 is articulated on the one hand on a pivot pin 34 which passes through holes 35 in the side walls 11, 12 of the backrest support part 7 and on the other hand on a pivot pin 36 which passes through a bore 37 in the side walls 13, 14.
  • the side wall 11 of the backrest support part 7 has a slot 39 running in the form of a circular section, through which an actuating lever 4o engages for a locking device 38.
  • the backrest support part 7 is pivoted about the pivot axis 6 against the spring force of the gas spring 33 until an equilibrium state is reached d, pivoted, the rubber buffer 32 connecting the seat 3 and the backrest support part 7 because of the greater distance from the seat pivot axis 18 than from the backrest support part pivot axis 6 is greater than the angle / 3.
  • the seat holder 19 connected to the seat 3 is pivoted about the pivot axis 18 by the angle ⁇ .
  • the backrest 8 and the seat 3 move from the position shown in solid line in FIG. 2 to the position shown in broken lines in FIG. 2.
  • the distance a between the lower edge 43 of the backrest 8 and the upper edge 44 of the upholstery 45 of the seat 3 changes such that the corresponding new distance a 'is smaller than the original distance, ie, in contrast to previously known constructions, there is no increase the original distance a and accordingly no pull on the clothing of the user.
  • the distance of the lower pivot axis (pivot pin 36) of the gas spring 33 from the pivot axis 6 is approximately half as large as the distance of the pivot axis 6 from the pivot axis 18.
  • the angle T between the longitudinal axis of the gas spring 33 and the U-bottom 15 of the backrest support part 7 is approximately 30 °.
  • the distance of the rubber buffers 32 from the pivot axis 18 is approximately 2 1/2 times as large as the distance from the pivot axis 6.
  • the locking device 38 can be designed particularly simply within the framework of the construction according to the invention, in that it comprises a sleeve part 46 and a piston part 47, the piston part being mounted in the sleeve part so as to be longitudinally displaceable.
  • This arrangement is arranged parallel to the gas spring 33, i.e. the sleeve part 46 is pivotally mounted on the bolt 34 and the piston part 47 on the bolt 36.
  • the confirmation lever 4o has at its free end a threaded bolt 48 which passes through a threaded sleeve 49 which is connected to the side wall 13 of the seat support 4.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Special Chairs (AREA)
  • Hydrogenated Pyridines (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP85102947A 1984-10-24 1985-03-14 Chaise, notamment chaise de bureau Expired - Lifetime EP0179185B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT85102947T ATE53473T1 (de) 1984-10-24 1985-03-14 Stuhl, insbesondere buerostuhl.
JP60235497A JPH0644893B2 (ja) 1984-10-24 1985-10-23 椅 子
ES1985289824U ES289824Y (es) 1984-10-24 1985-10-24 Silla, especialmente silla de oficina

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3438843 1984-10-24
DE3438843 1984-10-24
DE8560028U DE8560028U1 (de) 1984-10-24 1985-04-04 Stuhl, insbesondere Bürostuhl.

Publications (3)

Publication Number Publication Date
EP0179185A2 true EP0179185A2 (fr) 1986-04-30
EP0179185A3 EP0179185A3 (en) 1987-04-29
EP0179185B1 EP0179185B1 (fr) 1990-06-13

Family

ID=41058515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102947A Expired - Lifetime EP0179185B1 (fr) 1984-10-24 1985-03-14 Chaise, notamment chaise de bureau

Country Status (9)

Country Link
US (1) US4966412A (fr)
EP (1) EP0179185B1 (fr)
JP (1) JPH0644893B2 (fr)
AT (1) ATE53473T1 (fr)
DE (2) DE3578114D1 (fr)
ES (1) ES289824Y (fr)
HK (1) HK98091A (fr)
SG (1) SG84891G (fr)
ZA (1) ZA856126B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3635243A1 (de) * 1986-10-16 1988-04-28 Dauphin F W Buerositzmoebel Stuhl, insbesondere buerostuhl
EP0347538A1 (fr) * 1988-06-22 1989-12-27 Bürositzmöbelfabrik Friedrich-W. Dauphin GmbH & Co. Chaise, notamment chaise de bureau
DE9211244U1 (de) * 1992-08-21 1992-10-29 Friedrich W. Dauphin GmbH & Co, Entwicklungs- und Beteiligungs-KG, 8561 Offenhausen Stuhl
WO1999026518A1 (fr) * 1997-11-21 1999-06-03 Compact S.R.L. Fauteuil a elements mus par moteur presentant une structure amelioree
EP1169947A1 (fr) 2000-07-08 2002-01-09 Dauphin Entwicklungs- u. Beteiligungs-GmbH Chaise, notamment chaise de bureau
EP1175854A1 (fr) * 2000-07-25 2002-01-30 CO.FE.MO. S.p.A. Dispositif de réglage pour chaise inclinable de bureau ou similaire
EP1325694A2 (fr) 2002-01-08 2003-07-09 Dauphin Entwicklungs- u. Beteiligungs GmbH Chaise, notamment chaise de bureau
DE102009038319A1 (de) 2009-08-21 2011-02-24 Dauphin Entwicklungs- U. Beteiligungs-Gmbh Stuhl
DE102016205058A1 (de) 2015-12-09 2017-06-14 Dauphin Entwicklungs- U. Beteiligungs-Gmbh Rückenlehnen-Anordnung

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5171938A (en) * 1990-04-20 1992-12-15 Yazaki Corporation Electromagnetic wave fault prevention cable
DE9017909U1 (de) * 1990-12-13 1992-12-03 Christof Stoll Gmbh & Co Kg, 7890 Waldshut-Tiengen Neigungsvorrichtung für ein Sitzmöbel
DE4107451C2 (de) * 1991-03-08 2003-04-10 Dauphin Friedrich W Gmbh Rückenlehne für einen Stuhl
DE9104854U1 (de) * 1991-04-20 1991-06-06 Bürositzmöbelfabrik Friedrich-W. Dauphin GmbH & Co, 8561 Offenhausen Stuhl, insbesondere Bürostuhl
US5318345A (en) * 1991-06-07 1994-06-07 Hon Industries, Inc. Tilt back chair and control
US5356200A (en) * 1992-10-23 1994-10-18 Doerner Products Ltd. Unitary brake for a chair tilt mechanism
WO1995034233A1 (fr) 1994-06-10 1995-12-21 Haworth, Inc. Fauteuil ergonomique
USD383323S (en) * 1995-02-17 1997-09-09 Steelcase Inc. Seating unit
USD383322S (en) * 1995-02-17 1997-09-09 Steelcase Inc. Seating unit
US5782536A (en) * 1995-02-17 1998-07-21 Steelcase Inc. Modular chair construction and method of assembly
US6554364B1 (en) 1995-02-17 2003-04-29 Steelcase Development Corporation Articulating armrest
US6007150A (en) 1998-03-08 1999-12-28 Milsco Manufacturing Company Motorcycle seat with adjustable backrest
USD410342S (en) * 1998-09-02 1999-06-01 Steelcase Inc. Seating unit
MXPA02005951A (es) * 2000-10-16 2003-10-14 Kokuyo Kk Silla.
US7278685B1 (en) * 2006-07-05 2007-10-09 Tung Yu Oa Co., Ltd. Recliner
DE102010042923B3 (de) * 2010-10-26 2012-01-26 Dauphin Entwicklungs- U. Beteiligungs-Gmbh Stuhl, insbesondere Bürostuhl
DE102011010099A1 (de) * 2011-02-01 2012-08-02 Bock 1 Gmbh & Co. Kg Synchronmechanik
WO2014036633A1 (fr) * 2012-09-05 2014-03-13 Jamshed Unwalla Chaise à dossier réglable et siège réglable
US11589678B2 (en) 2019-01-17 2023-02-28 Hni Technologies Inc. Chairs including flexible frames

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2321385A (en) * 1941-06-16 1943-06-08 Sikes Company Tilting chair
DE2630820A1 (de) * 1976-07-08 1978-01-12 Westfael Eisen & Stahl Lagereinheit und arretiervorrichtung fuer sitz- und/oder liegemoebel mit verstellbaren teilen
DE3139448A1 (de) * 1981-10-03 1983-04-21 Kusch & Co Sitzmöbelwerke KG, 5789 Hallenberg "stuhl"

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2859799A (en) * 1956-05-03 1958-11-11 Edwin R Moore Functional posture controller for chairs
US2834402A (en) * 1956-11-21 1958-05-13 Acrotherm Corp Seats of the reclining type
CA869338A (en) * 1969-09-23 1971-04-27 T. Doerner Joseph Chair control with torsion spring with tilting seat and chair back
DE2710043A1 (de) * 1977-03-08 1978-09-14 Kirschbaum Albrecht Von Sitztraeger fuer einen stuhl
US4143910A (en) * 1977-09-12 1979-03-13 Klaus Geffers Chair having synchronously coupled tiltable seat and back rest
DE2843058A1 (de) * 1978-10-03 1980-04-24 Kloeber Kg Sitzmoebel mit verstelleinrichtung
US4369997A (en) * 1979-01-29 1983-01-25 Kusch & Co., Sitzmohelwerke Kg Chair
JPS59123454U (ja) * 1983-02-10 1984-08-20 レイフォ−ム・ソチエタ・ア・レスポンサビリタ・リミタ−タ いす

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2321385A (en) * 1941-06-16 1943-06-08 Sikes Company Tilting chair
DE2630820A1 (de) * 1976-07-08 1978-01-12 Westfael Eisen & Stahl Lagereinheit und arretiervorrichtung fuer sitz- und/oder liegemoebel mit verstellbaren teilen
DE3139448A1 (de) * 1981-10-03 1983-04-21 Kusch & Co Sitzmöbelwerke KG, 5789 Hallenberg "stuhl"

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3635243A1 (de) * 1986-10-16 1988-04-28 Dauphin F W Buerositzmoebel Stuhl, insbesondere buerostuhl
DE3635243C2 (de) * 1986-10-16 1994-12-22 Buerositzmoebelfabrik Friedric Stuhl, insbesondere Bürostuhl
EP0347538A1 (fr) * 1988-06-22 1989-12-27 Bürositzmöbelfabrik Friedrich-W. Dauphin GmbH & Co. Chaise, notamment chaise de bureau
DE9211244U1 (de) * 1992-08-21 1992-10-29 Friedrich W. Dauphin GmbH & Co, Entwicklungs- und Beteiligungs-KG, 8561 Offenhausen Stuhl
EP0584620A1 (fr) * 1992-08-21 1994-03-02 Dauphin Entwicklungs- u. Beteiligungs-GmbH Chaise
WO1999026518A1 (fr) * 1997-11-21 1999-06-03 Compact S.R.L. Fauteuil a elements mus par moteur presentant une structure amelioree
EP1169947A1 (fr) 2000-07-08 2002-01-09 Dauphin Entwicklungs- u. Beteiligungs-GmbH Chaise, notamment chaise de bureau
EP1175854A1 (fr) * 2000-07-25 2002-01-30 CO.FE.MO. S.p.A. Dispositif de réglage pour chaise inclinable de bureau ou similaire
EP1325694A2 (fr) 2002-01-08 2003-07-09 Dauphin Entwicklungs- u. Beteiligungs GmbH Chaise, notamment chaise de bureau
DE102009038319A1 (de) 2009-08-21 2011-02-24 Dauphin Entwicklungs- U. Beteiligungs-Gmbh Stuhl
DE102016205058A1 (de) 2015-12-09 2017-06-14 Dauphin Entwicklungs- U. Beteiligungs-Gmbh Rückenlehnen-Anordnung

Also Published As

Publication number Publication date
DE3578114D1 (de) 1990-07-19
EP0179185A3 (en) 1987-04-29
ES289824Y (es) 1986-10-16
ZA856126B (en) 1986-03-26
ES289824U (es) 1986-03-16
ATE53473T1 (de) 1990-06-15
JPH0644893B2 (ja) 1994-06-15
US4966412A (en) 1990-10-30
EP0179185B1 (fr) 1990-06-13
SG84891G (en) 1991-12-13
HK98091A (en) 1991-12-13
JPS61103410A (ja) 1986-05-21
DE8560028U1 (de) 1986-11-06

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