EP3206536B1 - Soutien lordosique pour une chaise et chaise équipée de celui-ci - Google Patents

Soutien lordosique pour une chaise et chaise équipée de celui-ci Download PDF

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Publication number
EP3206536B1
EP3206536B1 EP15784306.1A EP15784306A EP3206536B1 EP 3206536 B1 EP3206536 B1 EP 3206536B1 EP 15784306 A EP15784306 A EP 15784306A EP 3206536 B1 EP3206536 B1 EP 3206536B1
Authority
EP
European Patent Office
Prior art keywords
backrest
chair
support
lumbar support
lumbar
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
EP15784306.1A
Other languages
German (de)
English (en)
Other versions
EP3206536A1 (fr
Inventor
Simon Desanta
Mark Wiese
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.)
Haworth GmbH
Original Assignee
Haworth 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 Haworth GmbH filed Critical Haworth GmbH
Publication of EP3206536A1 publication Critical patent/EP3206536A1/fr
Application granted granted Critical
Publication of EP3206536B1 publication Critical patent/EP3206536B1/fr
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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
    • 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
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means

Definitions

  • the invention relates to a lumbar support for a chair with a backrest which has backrest supports which can be pivoted independently of one another, the effect of individual support areas of the lumbar support being individually adjustable.
  • the invention also relates to a chair which has such a lumbar support.
  • lumbar supports in order to support the hip area or lumbar area of a seated person.
  • Known lumbar supports are usually designed to be depth-adjustable, that is, the position of the lumbar support is adjusted at right angles to the backrest area and thus an adjustment towards or away from the back of the seated person.
  • lumbar supports are perceived by many users as uncomfortable.
  • the lumbar support shown can only be used for chairs with rigid backrest frames, since it is arranged in the center of the backrest frame and therefore no adjustment of the lumbar support position to mutually independent pivoting of the backrest support of the chair is possible.
  • the lumbar support according to the invention enables, on the one hand, an individual, in particular asymmetrical, adjustment of the support effect directed at the hip area or the lumbar area of a seated person by the lumbar support.
  • the structural design of the lumbar support according to the invention allows it to be used with a chair, the back of which has backrest supports that can be pivoted independently of one another. Due to the articulated connection of the lumbar support with the independently pivotable backrest supports of the chair, the position of the Lumbar support within the backrest can easily be adapted to the current tilting of the backrest supports to one another.
  • leaf springs as spring elements enables particularly simple mounting of the support areas and also a very simple adjustment of the desired resistance of the individual support areas.
  • the adjustable bearing element in particular the point of curvature of the leaf spring can be adapted as required, so that the spring force acting on the lumbar area of the seated person by means of the support areas can be continuously adjusted to the needs of the user.
  • the lever mechanism and the transmission which is operatively connected to the lever mechanism, enable the support areas to move relative to the carrier. This enables, in particular, a height adjustment of the support areas when the lumbar support is connected to the backrest supports of a chair.
  • the spring force acting on the lumbar area of the seated person by means of the support areas can be adapted to the individual needs of the seated person.
  • the support area 10a is responsible for supporting the lumbar area to the left of the spinal column of a seated person
  • the support area 10b is responsible for the lumbar area to the right of the spine of a seated person.
  • a uniform support effect by the two support areas 10a, 10b on the lumbar region is perceived as unpleasant by many people, so that an asymmetrical setting of the support effect of the lumbar support adapted to the individual needs of the seated person is advantageous.
  • the support effect of the individual support areas 10a, 10b can be individually adjusted to the needs of a seated person.
  • the articulated mounting of the lumbar support 1 in the backrest supports 7 enables the lumbar support to move in a forward-backward direction relative to the chair as well as in an up-and-down direction relative to the chair. Due to the articulated mounting, the lumbar support 1 can follow every movement of the backrest supports 7, which can be pivoted independently of one another, so that the support areas 10a, 10b are each ideally adapted to the sitting position of a user of the chair. The hip area or lumbar area of a seated person can thus be supported as required in any possible position of the backrest formed from the backrest supports 7 which can be pivoted independently of one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Claims (6)

  1. Soutien lombaire (1) pour une chaise munie d'un dossier, qui comprend des supports de dossier (7) pouvant être amenés à pivoter indépendamment les uns des autres, le soutien lombaire comportant :
    des zones de soutien (10a, 10b) ;
    des éléments ressorts (2), les zones de soutien (10a, 10b) étant respectivement montées à ressort sur un élément ressort séparé (2), chaque élément ressort (2) ayant un effet de ressort, l'effet de ressort de chaque élément ressort (2) étant ajustable individuellement ; et
    un support (5), chacun des éléments ressorts étant agencé sur le support (5), qui peut être articulé aux supports de dossier (7) pouvant être amenés à pivoter indépendamment les uns des autres, dans lequel
    les zones de soutien (10a, 10b) sont respectivement montées au moyen d'un mécanisme de levier (6a, 6b) sur l'élément ressort associé (2), caractérisé en ce que les zones de soutien (10a, 10b) peuvent être déplacées de manière synchrone relativement au support (5) par l'intermédiaire d'une transmission (11) reliée fonctionnellement avec le mécanisme de levier respectif (6a, 6b) .
  2. Soutien lombaire selon la revendication 1, dans lequel les éléments ressorts (2) comportent respectivement un ressort à lame (2).
  3. Soutien lombaire selon la revendication 2, dans lequel l'élément de montage est déplacé le long de l'axe longitudinal du ressort à lame (2) par l'intermédiaire d'un mécanisme à filetage (4).
  4. Soutien lombaire selon l'une quelconque des revendications précédentes, dans lequel les zones de soutien (10a, 10b) sont respectivement formées de telle sorte qu'elles puissent pénétrer dans des guides dans les supports de dossier (7) pouvant être amenés à pivoter indépendamment les uns des autres.
  5. Chaise munie d'un dossier, qui comprend des supports de dossier (7) pouvant être amenés à pivoter indépendamment les uns des autres, dans laquelle un soutien lombaire (1) selon l'une quelconque des revendications précédentes est relié de manière articulée avec les supports de dossier (7) pouvant être amenés à pivoter indépendamment les uns des autres.
  6. Chaise selon la revendication 5, dans laquelle les supports de dossier (7) comprennent respectivement des guides pour les zones de soutien (10a, 10b).
EP15784306.1A 2014-10-13 2015-10-13 Soutien lordosique pour une chaise et chaise équipée de celui-ci Active EP3206536B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014220693.6A DE102014220693A1 (de) 2014-10-13 2014-10-13 Lordosenstütze für einen Stuhl und Stuhl mit derselben
PCT/EP2015/073637 WO2016059030A1 (fr) 2014-10-13 2015-10-13 Soutien lordosique pour une chaise et chaise équipée de celui-ci

Publications (2)

Publication Number Publication Date
EP3206536A1 EP3206536A1 (fr) 2017-08-23
EP3206536B1 true EP3206536B1 (fr) 2021-05-26

Family

ID=54345470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15784306.1A Active EP3206536B1 (fr) 2014-10-13 2015-10-13 Soutien lordosique pour une chaise et chaise équipée de celui-ci

Country Status (4)

Country Link
US (1) US10045624B2 (fr)
EP (1) EP3206536B1 (fr)
DE (1) DE102014220693A1 (fr)
WO (1) WO2016059030A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020126229B4 (de) 2020-10-07 2022-06-30 Bock 1 Gmbh & Co. Kg Bedienvorrichtung zum Verstellen einer Rückenlehne eines Bürostuhls

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB360516A (en) * 1930-08-15 1931-11-12 Weymann S Motor Bodies 1925 Lt Improvements in or relating to seats
US2756809A (en) * 1954-06-30 1956-07-31 Endresen Ernst Back support for chairs, car seats, and the like
US3288525A (en) * 1965-05-17 1966-11-29 Donald B Cerf Orthopedic chair
JPH0284549A (ja) 1988-07-15 1990-03-26 Agency Of Ind Science & Technol 生糸絹繊維のセリシン定着による改質法
JPH0729899Y2 (ja) * 1988-12-19 1995-07-12 デルタ工業株式会社 自動車用シート
JP4987739B2 (ja) 2005-03-01 2012-07-25 ハワース、インク． 椅子及び椅子用腰部サポートパッド、腰部サポートパッドアセンブリ
WO2011117918A1 (fr) 2010-03-24 2011-09-29 タカノ株式会社 Dispositif de support lombaire pour une chaise
DE102012107778B4 (de) 2012-08-23 2018-08-16 Haworth Gmbh Stuhl, insbesondere Bürostuhl

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US20180042385A9 (en) 2018-02-15
US20170231397A1 (en) 2017-08-17
DE102014220693A1 (de) 2016-04-14
WO2016059030A1 (fr) 2016-04-21
US10045624B2 (en) 2018-08-14
EP3206536A1 (fr) 2017-08-23

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