EP1596691B1 - Stuhl, insbesondere büro- oder arbeitsstuhl - Google Patents

Stuhl, insbesondere büro- oder arbeitsstuhl Download PDF

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Publication number
EP1596691B1
EP1596691B1 EP04710835A EP04710835A EP1596691B1 EP 1596691 B1 EP1596691 B1 EP 1596691B1 EP 04710835 A EP04710835 A EP 04710835A EP 04710835 A EP04710835 A EP 04710835A EP 1596691 B1 EP1596691 B1 EP 1596691B1
Authority
EP
European Patent Office
Prior art keywords
seat part
backrest
support frame
chair
pivot axis
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
Application number
EP04710835A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1596691A1 (de
Inventor
Andras Dosza-Farkas
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.)
OMP Srl
Original Assignee
Dozsa-Farkas Andras
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 Dozsa-Farkas Andras filed Critical Dozsa-Farkas Andras
Publication of EP1596691A1 publication Critical patent/EP1596691A1/de
Application granted granted Critical
Publication of EP1596691B1 publication Critical patent/EP1596691B1/de
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
    • A47C1/03261—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
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03283—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with fluid 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
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers

Definitions

  • the invention relates to a chair, in particular an office or work chair, and in an equivalent way with loungers, upholstered armchairs, upholstered furniture or the like.
  • DE 199 27 691 A1 discloses a chair, in particular an office chair, which has a seat support serving as a support frame. At this seat carrier is around a first. Rotational axis rotatably arranged a backrest part, which can be pivoted from a rest position about this first axis of rotation by a plurality of inclination positions. A seat part is tiltable about a second axis of rotation synchronous to the backrest part and longitudinally displaceable and tiltable about a third axis of rotation with respect to the support frame under positive guidance. Furthermore, in this field of application in chairs, such as office chairs or the like, there are so-called return devices which bring about the provision of the backrest part and / or the seat part in their respective rest positions.
  • the invention aims to provide a chair, in particular an office or work chair or the like, in which the inclination range of the backrest part can be extended to at least up to 45 ° in a structurally simple manner, and such a chair in all positions of the backrest part and / or the seat part has improved stability, as well as the occupants sitting on it no sense of instability or tipping sensation.
  • a chair in particular office or work chair is provided, which is rotatable with respect to a support frame about a first axis of rotation, tilted from its rest position in a plurality of tilt positions backrest part, a rotatably connected to the backrest part about a second axis of rotation, synchronous to the backrest part has longitudinally displaceable, and about a third axis of rotation with respect to the support frame positively guided tiltable seat part, and a return means for returning the backrest part and / or the seat part in their respective rest positions or starting positions.
  • This chair is characterized in that the first axis of rotation on the support frame in the rest position and in all inclination positions of the backrest part and / or the seat part always stationary with a predetermined, constant distance, preferably in a range of 50 to 200 mm, is arranged fußgestellmittig above the seat part, and that a movable about the first stationary axis of rotation pivot lever is at least connected to the backrest portion at its lower portion.
  • the axis of rotation for the tilting movement of the backrest part is always stationary and arranged at a predetermined distance from the surface of the seat part, in such a way that this first axis of rotation is fußgestellmittig.
  • the chair can be spent in a person sitting on it very relaxing inclination position with respect to the backrest part, and by redesigngestellmittige stationary position of the first axis of rotation occur no tilting moments in the tilting movement of the backrest portion of the chair, which take the person sitting on the chair could convey an uncomfortable and uncertain feeling.
  • the comfort can be significantly improved, and in particular can be a larger longitudinal displacement track for the seat without any loss of stability realize.
  • the design is such that the second axis of rotation for rotatable synchronous connection of the backrest part and seat part is equal to the seat part.
  • a synchronous driving under execution of a rotational movement about the second axis of rotation in the tilting movement of Backrest part and the longitudinal displacement of the seat part reached.
  • spaced apart on the support frame also fixedly provided axis of rotation is then effected by means of a positive guide a correspondingly suitable tilting movement combined with the longitudinal displacement movement of the seat part.
  • the seat part may, for example, be tilted slightly upward in the longitudinal displacement in synchrony with the inclination movement of the backrest part in order to effectively avoid constriction in the knee or lower leg area when the inclination position is taken by a person sitting on the chair.
  • the center of gravity of a person sitting on the chair regardless of the inclination movement of the backrest part essentially always fußgestellmittig thanks to the stationary, fußgestellmittigen arrangement of the first axis of rotation.
  • the person sitting on the chair is given a comfortable feeling when performing a tilting movement of the backrest part.
  • At least one connecting member is attached to the backrest part, which carries the seat part in the execution of the tilting movement of the backrest part in the longitudinal direction while performing a rotational movement about the second axis of rotation relative to the support frame.
  • the synchronous entrainment of the seat part is realized in the tilting movement of the backrest part in a structurally simple manner, and the seat part can thus synchronously with the tilting movement of the backrest part by a forced driving under a large degree of freedom in the interpretation of the movements of the seat part in the longitudinal direction and / or tilt direction to be moved.
  • the third axis of rotation for executing a tilting movement of the seat part is fixedly arranged on the support frame, and operates via a sliding guide or forced operation with the underside of the seat part together.
  • the risk of injury can be effectively avoided, and the third axis of rotation and the associated slide can be arranged in a suitable manner to the support frame of the chair.
  • the design of the chair according to the invention is such that both sides of the backrest part in each case a connecting member is mounted, and / or on both sides of the seat part per a sliding guide for cooperation with the third axis of rotation is provided on the support frame.
  • the return device between the support frame and the seat part is arranged in particular centrally below the seat part, thereby obtaining a space-saving arrangement of the return device.
  • the return device is preferably formed by a spring device.
  • other known repatriation devices can be used in this field.
  • the support frame is formed in particular by a substantially U-shaped bent bracket, the horizontal leg extends below the seat part, and protrude the leg ends on the seat part on which the first axis of rotation is mounted for the tilting movement of the backrest part.
  • the support frame engages under the seat part and similar to bearing supports, the lateral leg ends in the vertical direction over the seat part at a predetermined height over to arrange the first axis of rotation at the desired, predetermined spaced stationary position to the seat part above it.
  • the horizontal leg and that is centrally connected to a pedestal which in the form of a Monethyroxine-derived Schwingergestells or the like, can be designed.
  • the horizontal leg is used here for sectiongestellmittigen reliable arrangement of the support frame to avoid in a structurally simple way tilting moments in such a chair with tiltable backrest part.
  • the horizontal leg of the support frame is provided with a substantially perpendicular thereto extending support arm for the third cooperating with the seat part for performing a tilting rotation axis.
  • the third axis of rotation can be arranged fixed on the support frame and therefore also fixed to the first axis of rotation at a suitable location spaced from the central axis of the support frame and the pedestal in cantilevered manner.
  • the length of the support arm for the third rotation axis may be suitably selected depending on the length of the seat part and its longitudinal movement range.
  • the seat part is thus a reliable and stable support of the seat part in all movement positions of the seat part.
  • the third axis of rotation for the tilting movement of the seat part is arranged at the free end of the support arm, and extends parallel to the seat part. This gives a center of gravity support on the underside of the seat part with a stable support.
  • the return means is connected on the one hand to the free end of the support arm for the third axis of rotation and on the other hand to the seat part at a suitable location, for example in the vicinity of the backrest portion.
  • the feedback device can transmit the feedback loads on the seat part and / or the backrest part in a largely lossless manner.
  • the or the connecting members on the backrest part and seat part with the pivot lever for the backrest part of a unit are designed in one piece, and the connecting member or the connecting members of backrest part and seat part are preferably with connected to the pivot lever at the backrest Operaem end.
  • the pivot lever is formed bent in an L-shape, and its free end cooperates with the first, fixed axis of rotation of the support frame.
  • a chair in particular office or work chair specified in which the backrest part tiltable and the seat part are longitudinally displaceable and tiltable, and the person taking it sufficient stability even in the execution of the corresponding movements of backrest part and seat part taught.
  • the invention also in other seating, such as loungers, armchairs, upholstery or the like, realize and apply.
  • the first axis of rotation for carrying out a tilting movement of the backrest is stationary immovably arranged at a predetermined distance above the seat part, and this axis of rotation is arranged in extension of the vertical center axis of the chair structure.
  • a foot frame 2 for example in the form of Gottfußgestells, centered on a columnar part 3, which may include, for example, a gas spring or the like for height adjustment of the chair fußgestellmittig about a central center axis 4 rotatable with a support frame 5 connected.
  • the support frame 5 is of a substantially U-shaped bent bracket 6 is formed, which has a horizontal leg 7 and at the ends of the horizontal leg 7 upstanding leg ends 8.
  • a support arm 9 is mounted, which extends approximately perpendicular thereto, and at its cantilevered free end 10 fixedly carries a third axis of rotation 11.
  • a return device 13 can be seen, which is designed, for example, in the form of a spring element, and whose one end is fixed to the cantilevered free end 10 of the support arm 9 and the other end (see Figure 2) in the horizontal direction spaced therefrom firmly connected to a seat part 14.
  • the office chair 1 comprises a total of 15 designated backrest part, on which in the example shown on both sides firmly connected preferably a L-shaped trained pivot lever 16 is mounted.
  • a connecting member 17 is further attached, which is preferably formed integrally with the L-shaped pivot lever 16 and serves for connection to the seat part 14.
  • each connecting member 17 is provided, of course, only a central, centrally arranged connecting member 17 may be provided for cooperation with the seat part 14 in accordance with appropriate manner.
  • the seat part 14 has on both sides a sliding guide 18 near the end facing away from the backrest portion 15 end of the seat part 14.
  • two sliding guides 18 are shown in the figure, of course, only as a central arrangement a sliding guide on the seat part 14 may be provided.
  • the seat part 14 has a suitable fastening means 19 for an end of the return device 13 at a suitable location.
  • the support frame 5 with the upstanding leg ends 8 in connection with the L-shaped pivot lever 16 fixed to the first axis of rotation 12th forms, by which the backrest part 15 can perform a tilting movement.
  • This first axis of rotation 12 is arranged at a predetermined distance of preferably 50 to 200 mm above the upper edge of the seat part 14 centered to the pedestal 2.
  • the backrest part 15 is movable via the connecting members 17 about a second axis of rotation 20 which is mounted on the seat part 14.
  • the office chair 1 is shown in a position with partially inclined backrest portion 15.
  • the first axis of rotation 12 is and remains stationary on the support frame 5, and about this first axis of rotation 12, the backrest portion 15 performs a tilting movement.
  • the connecting members 17 in cooperation with the second axis of rotation 20 synchronously forced the seat portion 14 is taken in this tilting movement of the backrest portion 15, and it performs a longitudinal displacement movement and a tilting movement by cooperation of the third axis of rotation 11 and slide 18 on the seat part 14.
  • the inclination movement of the seat part 14 about the third axis of rotation 11 can be specified in a suitable manner.
  • FIG. 4 shows, in a skeletal perspective overall view, the office chair 1 in its greatest inclination position, for example 45 ° or more, starting from the rest position shown in FIG.
  • the first axis of rotation 12 is fixedly arranged on the support frame in this largest inclination position at a constant predetermined distance from the seat part 14, and also provided fußgestellmittig so that the center of gravity of a person sitting on the chair always largely centrally over the support frame 5 in all inclination positions of Backrest part 14 remains.
  • the seat portion 14 is moved in relation to the inclination movement of the backrest portion 15 even more longitudinally with respect to Figure 3, and the connecting member 17 occupies a position approximately horizontal or in the same plane as the seat portion 14 , at the same time, however, the seat part 14 also takes its greatest possible, preferably upward inclination position of the seat part 14 by the interaction of the third axis of rotation 11 and slideways 18 on the seat part 14 a.
  • deviating inclination movements of the seat part 14 about the third rotation axis 11 can also be carried out, which depends on the corresponding design of the sliding guide or the sliding guides 18, which are provided on the seat part 14.
  • the spring element of the return means 13 assumes a maximum tensioned position, and the two ends of the return means 13 have the smallest distance from each other, in contrast to that in the rest position of the office chair 1 in Also in this maximum inclination position of the backrest portion 15 of the office chair 1 of Figure 4, the center of gravity of sitting on this office chair 1 person remains substantially centered above the pedestal 2 in order to achieve the desired stability and safety, and the pivotal mounting of the backrest portion 15 about the first stationary axis of rotation axis 12 remains at the desired predetermined distance above the upper edge of the seat portion 14, so that this maximum inclination position of the backrest portion 15 gives sufficient reliability and stability and stability to the entire office chair 1.
  • the person sitting on the office chair 1 of the present invention takes in any inclination position of the backrest portion 15 also in each longitudinal displacement position and inclination position of the seat portion 14 a balance stable position, so that even in the relaxation position shown in Figure 4, the person does not get an unpleasant feeling.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP04710835A 2003-02-18 2004-02-13 Stuhl, insbesondere büro- oder arbeitsstuhl Expired - Lifetime EP1596691B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10306851A DE10306851A1 (de) 2003-02-18 2003-02-18 Stuhl, insbesondere Büro- oder Arbeitsstuhl
DE10306851 2003-02-18
PCT/EP2004/001363 WO2004073457A1 (de) 2003-02-18 2004-02-13 Stuhl, insbesondere büro- oder arbeitsstuhl

Publications (2)

Publication Number Publication Date
EP1596691A1 EP1596691A1 (de) 2005-11-23
EP1596691B1 true EP1596691B1 (de) 2006-11-15

Family

ID=32747997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04710835A Expired - Lifetime EP1596691B1 (de) 2003-02-18 2004-02-13 Stuhl, insbesondere büro- oder arbeitsstuhl

Country Status (8)

Country Link
US (1) US7484803B2 (zh)
EP (1) EP1596691B1 (zh)
CN (1) CN100444764C (zh)
AT (1) ATE345068T1 (zh)
DE (2) DE10306851A1 (zh)
ES (1) ES2277238T3 (zh)
HK (1) HK1087900A1 (zh)
WO (1) WO2004073457A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001194A1 (de) 2007-01-05 2008-07-10 Omp S.R.L Bewegungsgekoppelte Servoeinrichutng für ein Sitzteil, insbesondere eines Stuhls

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US20090015050A1 (en) * 2004-03-13 2009-01-15 Hans Dehli Articulating chair
HK1064859A2 (en) * 2004-06-21 2005-01-14 Yu Yeung Tin Synchronous coordinate system of back of chair.
US7896439B2 (en) * 2006-08-30 2011-03-01 Itoki Corporation Chair
FR2906501B1 (fr) * 2006-10-03 2010-05-14 Plastic Omnium Cie Ouvrant arriere destine a etre rapporte sur un vehicule automobile, ensemble de deux ouvrants arriere.
CN201602410U (zh) * 2010-02-04 2010-10-13 周金坤 一种办公休闲两用椅
KR20130133763A (ko) * 2010-10-19 2013-12-09 가부시끼가이샤 오까무라세이사꾸쇼 팔걸이 장착 의자
CN102669973B (zh) * 2011-03-08 2015-04-22 株式会社塔捷斯 后仰装置
US9498066B2 (en) * 2011-08-04 2016-11-22 Cramer Llc Ergonomic seating assemblies and methods
US9215934B2 (en) * 2011-10-21 2015-12-22 Jae Hyun Lee Corrective chair using slider means
USD707995S1 (en) 2012-05-23 2014-07-01 Hni Technologies Inc. Chair
US9198514B2 (en) 2012-05-23 2015-12-01 Hni Technologies Inc. Chair with pivot function and method of making
DE102012212121A1 (de) * 2012-07-11 2014-01-16 Eb-Invent Gmbh Sitzvorrichtung
WO2014198255A1 (de) * 2013-06-12 2014-12-18 Stefan Brodbeck Stuhl
WO2018141968A1 (de) * 2017-02-03 2018-08-09 Oboyle Ruarc Stuhl
US10231546B2 (en) * 2017-03-02 2019-03-19 Knoll, Inc. Chair back tilt mechanism
EP3476254B1 (de) 2017-10-25 2021-06-09 EB-invent GmbH Sitzmöbel, insbesondere bürostuhl
WO2020247435A1 (en) * 2019-06-05 2020-12-10 Davis Furniture Industries, Inc. Improved tilting chair
WO2020255195A1 (ja) * 2019-06-17 2020-12-24 株式会社クオリ 傾動椅子
JP7382178B2 (ja) * 2019-08-30 2023-11-16 株式会社イトーキ 椅子
ES2925991T3 (es) * 2020-02-21 2022-10-20 Aeteron Gmbh Silla
US11259635B2 (en) * 2020-06-30 2022-03-01 Aerospace Industrial Development Corporation Seat and seatback linkage mechanism
CN113475884B (zh) * 2021-08-12 2022-08-12 浙江安吉荣艺家具有限公司 一种舒适可调人体工学办公椅

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001194A1 (de) 2007-01-05 2008-07-10 Omp S.R.L Bewegungsgekoppelte Servoeinrichutng für ein Sitzteil, insbesondere eines Stuhls

Also Published As

Publication number Publication date
CN100444764C (zh) 2008-12-24
WO2004073457A1 (de) 2004-09-02
EP1596691A1 (de) 2005-11-23
US7484803B2 (en) 2009-02-03
DE502004002007D1 (de) 2006-12-28
HK1087900A1 (en) 2006-10-27
US20060244294A1 (en) 2006-11-02
CN1750777A (zh) 2006-03-22
ATE345068T1 (de) 2006-12-15
DE10306851A1 (de) 2004-08-26
ES2277238T3 (es) 2007-07-01

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