EP2508102B1 - Chaise - Google Patents

Chaise Download PDF

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Publication number
EP2508102B1
EP2508102B1 EP12155797.9A EP12155797A EP2508102B1 EP 2508102 B1 EP2508102 B1 EP 2508102B1 EP 12155797 A EP12155797 A EP 12155797A EP 2508102 B1 EP2508102 B1 EP 2508102B1
Authority
EP
European Patent Office
Prior art keywords
seat
axis
rotation
support arms
chair according
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.)
Active
Application number
EP12155797.9A
Other languages
German (de)
English (en)
Other versions
EP2508102A1 (fr
Inventor
Carsten Gehner
Heiko Büttner
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.)
Wilkhahn Wilkening and Hahne GmbH and Co KG
Original Assignee
Wilkhahn Wilkening and Hahne GmbH and Co KG
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 Wilkhahn Wilkening and Hahne GmbH and Co KG filed Critical Wilkhahn Wilkening and Hahne GmbH and Co KG
Publication of EP2508102A1 publication Critical patent/EP2508102A1/fr
Application granted granted Critical
Publication of EP2508102B1 publication Critical patent/EP2508102B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47C9/00—Stools for specified purposes
    • A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects
    • 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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
    • A47C7/144—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions with array of movable supports
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/443—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/445—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs
    • A47C7/4454—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs of torsion type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/448—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with resilient blocks

Definitions

  • the invention relates to a chair with a seat and a seat mechanism, wherein the seat is coupled to the seat mechanism such that the seat is pivotally mounted in a front end region about a first axis of rotation, which is aligned parallel to the knee axis of a user.
  • the DE 10 2007 042 032 B3 relates to a dental chair having a seat with two leg supports tiltable parallel to the knee axis of a user. Both leg rests are supported on a rocker, wherein the rocker causes an upward lifting of the other leg rest when pivoting one of the two leg rests downwards.
  • a chair is known with a seat and a seat mechanism, wherein the seat mechanism allows a lateral pivoting movement of the seat and the seat and the seat mechanism are formed such that the one side of the seat in the lateral pivotal movement of the seat independently of the other side of the seat movable is. Furthermore, both sides of the seat are pivotally mounted about an axis of rotation, which is aligned parallel to the knee axis of a user.
  • the seat mechanism has two lateral, independently responding support arms, on which the seat is supported in its front and rear area by means of ball joints.
  • the present invention is based on the object of specifying an alternative embodiment of this new movement concept.
  • the chair according to the invention has a seat and a seat mechanism, wherein the seat is coupled to the seat mechanism such that the seat is pivotally mounted in a front end region about a first axis of rotation, which is aligned parallel to the knee axis of a user. Furthermore, the seat in its front end region is also rotatably supported on the seat mechanism about a second axis of rotation aligned perpendicular to the first axis of rotation.
  • the seat mechanism allows a lateral pivotal movement of the seat, wherein the seat and the seat mechanism are formed such that the one side of the seat during the lateral pivotal movement of the seat is movable independently of the other side of the seat.
  • a preferred embodiment of the invention can be provided in particular that it comes with the lateral pivotal movement of the seat to a rotation of the seat about the second axis of rotation.
  • the seat mechanism on two side, independently responding support arms, to which the seat is coupled to a rear area.
  • the two support arms can be pivoted in particular about a pivot axis, which is aligned parallel to the first axis of rotation and disposed below the front end portion of the seat.
  • the distance between the first axis of rotation of the seat and the pivot axis of the support arms is in particular 2 to 8 cm, preferably 3 to 5 cm.
  • the front end region of the seat can be supported on the seat mechanism via at least one slide bearing provided between the seat and the seat mechanism.
  • the seat may include a seat and a backrest, wherein the support arms are coupled in a lower portion of the backrest to the seat.
  • a desired synchronous ratio of seat tilt to the backrest tilt can be adjusted, on the one hand by the distance between the pivot axis of the support arms and the coupling between the support arms and backrest and on the other hand by the distance of the pivot axis of the support arms of the first axis of rotation of the seat is determined.
  • a chair is shown in an upright position, which may be, for example, an office swivel chair. It consists essentially of a seat 1 and a seat mechanism 2.
  • the seat 1 in turn has a seat 10 and a backrest 11 which are movable relative to each other.
  • the relative mobility can be formed by a suitable pivoting or bending zone, wherein seat 10 and backrest 11 can be formed both in one piece and by separate parts.
  • the seat mechanism has a base support 3, which is fastened to an arbitrarily designed base frame 4 and serves to hold the seat 1.
  • the seat mechanism 2 further comprises two lateral, independently responding support arms 21, 22, to which the seat 1 in a rear area 1b, in particular in a lower region of the backrest 11, is docked.
  • ball joints 23, 24 come into consideration, which are held in corresponding receptacles on the backrest 11.
  • the support arms 21, 22 are pivotable about a supported on the base support 3 pivot axis 25 which is disposed below the front end portion 1 a of the seat 1.
  • the seat 1 is pivotally mounted in its front region 1a about a separate axis of rotation 12, wherein the distance a between the first axis of rotation 12 and the pivot axis 25 of the support arms 2 to 8 cm, preferably 3 to 5 cm.
  • the chair can be of his in the Fig. 1a-1e shown upright position in a rearwardly inclined position according to the Fig. 2a-2d be brought by the user shifts his weight to the rear.
  • Fig. 1a As if from a comparison of Fig. 1a and Fig. 2a It can be seen, it comes to a pivotal movement of the support arms 21, 22 about its pivot axis 25 and a pivotal movement of the seat 1 about its first axis of rotation 12.
  • the seat 1 is fixed between its first axis of rotation 12 and the rigid support arms 21, 22nd mounted ball joints 23, 24 clamped. Due to the distance a (see Fig. 1d ) between the first axis of rotation 12 and the pivot axis 25 of the support arms occurs in a pivoting movement of the upright position according to Fig. 1a in the backward inclined position according to Fig. 2a to an extension of the distance b, b 1 between the first axis of rotation 12 and the ball joints 23 and 24 8 (see. Fig. 1d and Fig. 2d ).
  • This synchronous ratio can be defined on the one hand by the distance between the pivot axis 25 of the support arms and the coupling between the support arm and backrest (position of the ball joints 23, 24) and on the other hand by the distance a of the pivot axis 25 of the support arms of the first axis of rotation 12 of the seat.
  • the support arms 21, 22 cooperate in the region of its pivot axis 25 with at least one suitable spring element, for example a torsion or spiral spring, so that the support arms always move the seat to the upright position Fig. 1a to press.
  • the spring element is expediently provided with suitable adjustment means in order to be able to adapt the chair to the actual weight of a user. Further adjustment means, such as in particular a locking of the chair in the upright position are conceivable.
  • the seat mechanism described above thus enables a pivoting of the seat about a parallel to the knee axis of a user aligned and arranged in the front region of the seat axis of rotation.
  • the seat 1 is also rotatably mounted on the seat mechanism 2 or on the base support 3 in its front end region 1a about a second rotation axis 13 oriented perpendicularly to the first rotation axis 12.
  • the second axis of rotation 13 is disposed in the center of the seat 1 in its front end portion 1a. In the upright position according to the Fig. 1a-1e intersect the first and second rotation axis 12, 13. Also, the pivot axis 25 and the second axis of rotation 13 intersect in this position. It would also be quite conceivable that the three axis are arranged offset from one another.
  • the two axes of rotation 12, 13 of the seat 1 are in the illustrated embodiment by one of the base support 3 about the first axis 12th pivotally supported bolt 5 realized, which simultaneously allows rotation of the seat 10 about the longitudinal axis of the bolt, which forms the second axis of rotation 13.
  • the bolt 5 has in the illustrated embodiment, a protruding head 5a and is connected at its other end fixed to a shoe, which is guided in the base support 3 in the manner of a slotted guide for carrying out the pivoting movement about the first axis of rotation 12, as shown in the Fig. 1d . 1e and 2d evident.
  • the seat 1 is thus clamped in the region of the bolt 5 in its front region and by the two ball joints 23, 24 in its rear region in the seat mechanism. Due to the rigid support arms 21, 22 is a rotational movement of the seat 1 about the second axis of rotation 13 thus possible only in conjunction with a simultaneous pivotal movement of the seat about the first axis of rotation 12.
  • the pivoting movement of the seat 1 about the first axis of rotation 12 can thus be superimposed by a lateral pivoting movement of the seat.
  • This means that, for example, the rear left end of the seat 10 is inclined further down than the right rear end.
  • By the connection of seat 10 and backrest 11 thus follows also the backrest 11 such a lateral movement.
  • the seat 1 is supported in its front region via two plain bearings 6, 7 on the seat mechanism 2 and the base support 3 from.
  • a respective sliding bearing 6, 7 is provided laterally of the bolt 13 between the base support 3 and the seat 1 (see Fig. 1c and 1e ).
  • Fig. 3a-3c show the situation in which the right side of the seat 1, regardless of the left side of the seat performs a lateral pivoting movement. It comes between the seat 1 and the plain bearings 6, 7 to a relative movement, like this particular out Fig. 3c is apparent. To perform this movement, the seat has a corresponding twisting ability.
  • the chair can be tilted not only straight to the rear, but also to one of the two sides. In each position of the chair, a sufficiently strong pressure from the backrest 11 acts on the user's back, so that it feels secure in any position.
  • the embodiment according to the Fig. 4a and 4b also shows a position of the chair in a laterally inclined position (similar to the Fig. 3a to 3c ).
  • the support arms 21 ', 22' cooperate with a spring element 26 configured as a spiral spring.
  • the support arms 21 ', 22' are in the front half so cranked to each other that the two support arms are arranged in this area parallel to each other and with a relatively small distance from each other.
  • the spring element 26 is arranged, which is supported at one end to an abutment 3a on the base support and with its other end with two support arms 21 ', 22' in contact, wherein the support arms, the spring element 26 together, but also independently can press in a rotation about the pivot axis 25.
  • each swivel arm could be assigned in each case a spring element.

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)

Claims (9)

  1. Chaise, qui comprend un siège (1) et un mécanisme d'assise (2), sachant que le siège (1) est couplé avec le mécanisme d'assise (2), ledit siège étant, dans une zone finale, avant (1a), monté en rotation autour d'un premier axe de rotation (12), qui est orienté parallèlement à l'axe du genou d'un utilisateur,
    caractérisée en ce que
    le siège (1), dans sa zone finale, avant (1a), est, de plus, monté sur le mécanisme d'assise (2), en rotation autour d'un deuxième axe de rotation (13), qui est orienté perpendiculairement par rapport au premier axe de rotation (12), et
    le mécanisme d'assise (2) permet un mouvement de pivotement latéral du siège (1), sachant que ledit siège (1) et le mécanisme d'assise (2) sont conçus de sorte que, lors du mouvement de pivotement latéral du siège (1), l'un des côtés du siège (1) puisse être mû indépendamment de l'autre côté de le siège (1).
  2. Chaise selon la revendication 1, caractérisée en ce que le siège (1) et le mécanisme d'assise (2) sont conçus de sorte qu'une rotation du siège (1) autour du deuxième axe de rotation ait lieu lors d'un mouvement de pivotement latéral du siège.
  3. Chaise selon la revendication 1, caractérisée en ce que le mécanisme d'assise (2) est dote de deux bras de support (21, 22 ; 21', 22'), qui réagissent indépendamment l'un de l'autre et auxquels le siège (1) est couplé dans une zone arrière (1b).
  4. Chaise selon la revendication 3, caractérisée en ce que les deux bras de support (21, 22 ; 21', 22') peuvent pivoter autour d'un axe de pivotement (25), qui est orienté parallèlement au premier axe de rotation (12) et est disposé au-dessous de la zone finale, avant (1a) du siège (1).
  5. Chaise selon la revendication 4, caractérisée en ce que l'intervalle (a), entre le premier axe de rotation (12) et l'axe de pivotement (25) est de 2 à 8 cm, de préférence de 3 à 5 cm.
  6. Chaise selon la revendication 3, caractérisée en ce que le siège (1) est composé d'une surface d'assise (10) et d'un dossier (11), sachant que les bras de support (21, 22 ; 21', 22') sont couplés avec le siège (1) dans une zone inférieure du l'élément de liaison (11).
  7. Chaise selon les revendications 4 et 6, caractérisée en ce que le rapport de synchronisation entre de l'inclinaison du siège et l'inclinaison du dossier est déterminé, d'une part, par l'intervalle entre l'axe de pivotement (25) des bras de support (21, 22 ; 21', 22') et le couplage entre les bras de support (21, 22 ; 21', 22') et le dossier (11) et, d'autre part, par l'intervalle (a) entre l'axe de pivotement (25) des bras de support (21, 22 ; 21', 22') et le premier axe de rotation (12) du siège (1).
  8. Chaise selon la revendication 1, caractérisée en ce que le deuxième axe de rotation (13) est agencé fixement sur le mécanisme d'assise (2),
  9. Chaise selon la revendication 1, caractérisée en ce que la zone finale, avant (1a) du siège est soutenue, sur le mécanisme d'assise (2), par l'intermédiaire d'au moins un palier à glissement (6, 7), qui est prévu entre le siège (1) et le mécanisme d'assise (2).
EP12155797.9A 2011-04-05 2012-02-16 Chaise Active EP2508102B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011001811A DE102011001811A1 (de) 2011-04-05 2011-04-05 Stuhl

Publications (2)

Publication Number Publication Date
EP2508102A1 EP2508102A1 (fr) 2012-10-10
EP2508102B1 true EP2508102B1 (fr) 2013-08-07

Family

ID=45655960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12155797.9A Active EP2508102B1 (fr) 2011-04-05 2012-02-16 Chaise

Country Status (4)

Country Link
US (1) US9504330B2 (fr)
EP (1) EP2508102B1 (fr)
JP (1) JP5726798B2 (fr)
DE (1) DE102011001811A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2016059031A1 (fr) 2014-10-13 2016-04-21 Haworth Gmbh Chaise, notamment chaise de bureau

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EP2908696B2 (fr) 2012-10-18 2023-03-15 Vitra AG Ajustage synchrone de siège
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DE102015102007B3 (de) 2015-02-12 2016-07-28 Wilkhahn Wilkening + Hahne Gmbh + Co. Sitzmöbel
CN110022724B (zh) * 2016-12-20 2022-11-11 国誉株式会社 椅子和椅子的罩构件
EP3560384B1 (fr) * 2016-12-20 2023-03-29 Kokuyo Co., Ltd. Chaise
JP6785644B2 (ja) 2016-12-20 2020-11-18 コクヨ株式会社 椅子及び椅子のカバー部材
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DE202017100480U1 (de) * 2017-01-30 2018-05-03 Armin Sander Sitzmöbel, insbesondere Bürostuhl
EP3576573B1 (fr) 2017-02-03 2021-04-07 Zhejiang Sunon Furniture Manufacture Co., Ltd. Siège
EP3643204A4 (fr) 2017-06-20 2020-10-28 Kokuyo Co., Ltd. Chaise
US10383448B1 (en) 2018-03-28 2019-08-20 Haworth, Inc. Forward tilt assembly for chair seat
US10702066B2 (en) * 2018-11-19 2020-07-07 Profim SP. ZO.O Office chair
DE102019122164A1 (de) * 2019-08-19 2021-02-25 Viasit Bürositzmöbel Gmbh Stuhl
US11051624B1 (en) * 2020-02-27 2021-07-06 Comfordy Co., Ltd. Twistable chair backrest frame
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US7434881B1 (en) * 2004-06-17 2008-10-14 Wegener William E Dynamic chair
US7008017B1 (en) * 2004-06-17 2006-03-07 Wegener William E Dynamic chair
CA2572396C (fr) * 2004-07-08 2011-09-06 Knoll, Inc. Chaise de bureau
DE202005004880U1 (de) * 2005-03-26 2006-08-03 Sander, Armin Stuhl, insbesondere Bürostuhl
JP4747311B2 (ja) * 2005-11-11 2011-08-17 コクヨ株式会社 椅子
DE102006023982A1 (de) * 2006-05-22 2007-12-06 Wilkhahn Wilkening + Hahne Gmbh & Co. Kg Stuhl
NZ597812A (en) * 2006-10-04 2013-04-26 Formway Furniture Ltd Back portion for a chair including upper section which folds rearwardly to reduce height of back portion and provide arm rest
DE202007001395U1 (de) * 2007-01-31 2008-06-05 Sander, Armin Stuhl, insbesondere Bürostuhl
US7806479B2 (en) * 2007-02-14 2010-10-05 Wisys Technology Foundation Seat with adjustable dynamic joint
CN101686761A (zh) * 2007-02-27 2010-03-31 株式会社冈村制作所 用于座椅中的可动构件的锁定装置
DE102007042032B3 (de) * 2007-09-05 2009-02-26 Sirona Dental Systems Gmbh Stuhl, insbesondere ein Zahnarztstuhl, aufweisend eine Sitzfläche mit neigbaren Beinauflagen
JP2010227324A (ja) * 2009-03-27 2010-10-14 Oki Electric Ind Co Ltd 椅子
DE202009009612U1 (de) * 2009-07-14 2009-10-01 Wilkhahn Wilkening + Hahne Gmbh & Co. Kg Stuhl
US8348341B2 (en) * 2010-09-21 2013-01-08 Yun-Chien Hsiao Chair assembly with a backrest-adjusting device
KR101588146B1 (ko) * 2011-08-10 2016-01-22 도요타 지도샤（주） 차량용 시트 장치
DE102012107778B4 (de) * 2012-08-23 2018-08-16 Haworth Gmbh Stuhl, insbesondere Bürostuhl

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016059031A1 (fr) 2014-10-13 2016-04-21 Haworth Gmbh Chaise, notamment chaise de bureau
DE102014220695A1 (de) 2014-10-13 2016-04-28 Haworth Gmbh Stuhl, insbesondere Bürostuhl

Also Published As

Publication number Publication date
DE102011001811A8 (de) 2013-03-07
EP2508102A1 (fr) 2012-10-10
DE102011001811A1 (de) 2012-10-11
US9504330B2 (en) 2016-11-29
US20120256458A1 (en) 2012-10-11
JP5726798B2 (ja) 2015-06-03
JP2012217845A (ja) 2012-11-12

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