EP2153752B1 - Dossier - Google Patents

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Publication number
EP2153752B1
EP2153752B1 EP20090009853 EP09009853A EP2153752B1 EP 2153752 B1 EP2153752 B1 EP 2153752B1 EP 20090009853 EP20090009853 EP 20090009853 EP 09009853 A EP09009853 A EP 09009853A EP 2153752 B1 EP2153752 B1 EP 2153752B1
Authority
EP
European Patent Office
Prior art keywords
backrest
support
armchair according
chair
seat
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.)
Not-in-force
Application number
EP20090009853
Other languages
German (de)
English (en)
Other versions
EP2153752A1 (fr
Inventor
Jutta Habermann
Markus Dörner
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.)
Sedus Stoll AG
Original Assignee
Sedus Stoll AG
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 Sedus Stoll AG filed Critical Sedus Stoll AG
Publication of EP2153752A1 publication Critical patent/EP2153752A1/fr
Application granted granted Critical
Publication of EP2153752B1 publication Critical patent/EP2153752B1/fr
Not-in-force 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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/021—Rocking chairs having elastic frames
    • A47C3/023—Rocking chairs having elastic frames made of tubular material
    • 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—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs

Definitions

  • the invention relates to an armchair with seat and backrest, wherein the backrest has a backrest support and a backrest plate.
  • Tilting backrests which support the back perfectly even with a slight recline, are known in office chairs.
  • tilting backrests are hung on a complex mechanism below the seat and are expensive. Since chairs as a design object are also subject to design requirements, such chunky suspensions are often undesirable.
  • the backrest is attached to the two armrests suspended.
  • Such a free-hanging backrest is not attached to the seat and relatively short, so that it supports only the middle area of the back - lordosis and pelvic area are free and not supported.
  • Known free-hanging backrests that extend into the pelvic area are rigid.
  • the object of the invention is to provide an armchair of the type mentioned, in which the backrest optimally supports the middle region of the back of a person sitting on the chair up to the pelvic area. Also, this support should always be guaranteed with slight reclines or rockers.
  • the armchair should be inexpensive to produce and act aesthetically pleasing by a free-hanging backrest.
  • this object is achieved with an armchair of the type mentioned above in that the backrest support has two armrest sections and a center section bent upward at an angle such that the backrest plate is fastened in its upper region to the middle section of the backrest support and with a lower backrest Range freely reaches close to the seat that the backrest support is flexible and can be deformed when leaning by a person sitting on the chair by increasing the angle between its armrest sections and its middle section, and that the backrest plate is flexible and its upper section can move with the central portion of the backrest support when its lower portion rests against the pelvis of the person sitting on the chair.
  • backrest support and backrest plate allows a suspension of the backrest to the armrests and thus allows more creative freedom.
  • a rocking and easy reclining allows without a person sitting on the chair through the lower part of the Backrest is pushed forward from the seat, as would be the case with a rigid backrest. It only creates a barely noticeable pressure of the lower portion of the backrest plate on the pelvic area of the person.
  • the backrest is always on the back and supports it in the lumbar area.
  • the backrest support is so flexible that it is increased by at least 4 degrees at a backrest force of 400 N, which is 40 cm above the seat centered in the backrest plate, the angle between the Armlehnabroughen and the middle section.
  • the backrest plate is so flexible that when the angle between the armrest sections and the center section is increased by 5 degrees in the lower section, it pushes 10 cm above the seat with no more than 20 N on the pelvis of the person sitting on the chair.
  • the armchair is a cantilever chair.
  • the inventive armchair may comprise a tubular frame to which the seat may be attached.
  • the end portions of the tubular frame can be pulled up in the front of the chair to the height of the armrests and be connected to the armrest sections of the backrest support to shock.
  • the backrest support of the inventive armchair can be a one-piece plastic injection molded part, which can be produced inexpensively.
  • the backrest plate preferably has a padded with a flexible support member, which may also be a cost-producible one-piece plastic injection molded part.
  • This support member may have two lateral, strip-shaped spars and extending between them, rotatable about this longitudinal direction slats.
  • the lamellae can branch out against the lateral uprights to form narrower joint sections, whereby adjacent joint sections of adjacent lamellae unite against the lateral uprights to form wider connection sections.
  • the lateral spars and the slats can be flexible with respect to their longitudinal extent.
  • Such a structure of the support element guarantees a high flexibility of the backrest plate, which can be optimally adapted to the back of the person sitting on the chair.
  • Fig. 1 the preferred embodiment of the armchair is shown in a side view.
  • the armchair is a cantilever and includes a seat 1 which is fixed to a tubular frame such that the seat is free at the rear.
  • the end sections 5.1 of the tubular frame 5 are raised in the front region of the chair to the height of the armrests and connected to armrest sections 3.1 of the backrest support 3 to shock.
  • the end sections 5.1 of the tubular frame 5 and the armrest sections 3.1 extend approximately horizontally.
  • the two armrest sections 3.1 are connected via a center section 3.2, which is opposite to the armrest sections 3.1 bent at an angle upwards.
  • the backrest support 3 is a one-piece plastic injection-molded part, which is flexible in connecting areas 3.3 between the armrest sections 3.1 and the middle section 3.2, so that the backrest support 3 when leaning by a person sitting on the chair by increasing the angle between its armrest sections 3.1 and its middle section 3.2 can deform.
  • the movements of the back are further down and in Fig. 3 described in more detail.
  • a backrest plate 4 is fastened in its upper region 4.1 to the middle section 3.2 of the backrest support 3.
  • the lower portion of the backrest plate 4.1 extends freely to close to the seat 1. There is no connection between the seat 1 and backrest plate. 4
  • Fig. 2 the preferred form of the armchair is shown in a rear view. It can be seen that the middle section 3.2 of the backrest support 3 pulls up on both sides of the backrest plate 4 from the connection region 3.3 and converges at the upper edge of the backrest plate 4. The center section 3.2 thus runs bow-shaped along the edge of the upper region of the backrest plate 4. Seat 1 and tube frame 5 are also shown.
  • Fig. 3 shows a schematic representation of the deformation of the backrest when sitting a person ( Fig. 3b ) and in reclining the same person ( Fig. 3c ).
  • Fig. 3a is the unloaded state of the armchair with seat 1, tube frame 5, backrest support with armrest section 3.1 and center section 3.2, and back plate 4 with its upper 4.1 and lower section 4.2.
  • the seat 1 is firmly connected to the tubular frame 5.
  • the backrest plate is in the upper region 4.1 at the points 11, 12 shown by arrows, on both sides firmly connected to the middle section 3.2. In the lower area 4.2 the backrest plate hangs free.
  • Fig. 3b is the movement of the back plate and the backrest support 3 with respect to the unloaded state of Fig. 3a shown.
  • the dashed line shows the position in the unloaded state.
  • the upper region of the backrest plate 4.1 together with the middle section 3.2 inclines slightly backwards and the lower region of the backrest plate 4.2 is pressed slightly forward, so that the backrest plate of Person 10 is in the pelvic area.
  • the armrest section 3.1 of the backrest support 3 remains unchanged.
  • Fig. 3c shows the movement of the backrest plate and the backrest support with additional load and with respect to the state of 3b , in which the backrest plate is only slightly loaded, as is the case when sitting.
  • the dashed line shows the position of the backrest plate and the backrest support in slightly loaded condition.
  • backrest plate and backrest support are additionally deformed.
  • the angle between the armrest sections 3.1 and the middle section 3.2 increases.
  • the middle section tilts further back together with the upper region of the backrest plate 4.1.
  • the lower region of the backrest plate 4.2 remains in the position that has set when sitting of the person 10. This effect is achieved by the high flexibility of the backrest plate, thus creating only a slight pressure on the pelvic area of the person.
  • the deformation of the backrest plate prevents the pushing out of the person 10 from the seat 1, as would be the case with inflexible back plates.
  • the backrest force which is introduced 40 cm above the seat 1 in the backrest plate 4, when reclining up to 400 N.
  • the angle between the armrest sections 3.1 and the middle section 3.2 increases by the flexibility of the backrest support 3 preferably by at least 4 degrees with respect to the unloaded state.
  • With an enlargement of the angle between the Armlehnabêten 3.1 and the middle section 3.2 by 5 degrees arises in the lower section 4.2 of the flexible backrest plate 4 10 cm above the seat 1, a force on the pelvic area of the person 10 of preferably less than 20 N.
  • the majority of introduced Lehnenkraft goes into the deformation of the backrest support 3 and the backrest plate 4 on.
  • the backrest plate 4 comprises a flexible support element and a padding.
  • Fig. 4 shows this support member 7 in a front view.
  • the support element 7 is a one-piece plastic injection-molded part and comprises two lateral, strip-shaped spars 7.1. Between the two bars 7.1 extend slats 7.2, which are around this Longitudinal extent are rotatable. The slats 7.2 branch out against the lateral spars 7.1 out to form narrower joint sections 7.3. Adjacent joint sections 7.3 of adjacent lamellae 7.2 unite against the lateral rails 7.1 towards wider connecting sections 7.4. By this training, even with local loads, a distributed deformation of the backrest always incorporating several slats 7.2 is achieved.
  • the lateral bars 7.1 and the slats 7.2 are flexible with respect to their longitudinal extension to ensure optimum adaptation to the back of the person sitting on the chair, as it is already above and in Fig. 3 is described.
  • Fig. 5 shows the inventive support element 7 in a side view.
  • the support element 7 is preformed, so that it bulges out in the lumbar region 7.5.
  • the lordosis of a person sitting on the chair is optimally supported.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)

Claims (12)

  1. Chaise à accoudoirs avec assise et dossier, le dossier présentant un support d'appui (3) et une plaque d'appui (4), caractérisée par le fait que le support d'appui (3) présente deux sections d'accoudoir (3.1) et une section centrale (3.2) coudée vers le haut à un certain angle par rapport à celles-ci, que la plaque d'appui (4) est fixée dans sa zone supérieure (4.1) à la section centrale (3.2) du support d'appui (4) et s'étend librement avec une zone inférieure (4.2) jusqu'à proximité du siège (1), que le support d'appui (3) est flexible et peut se déformer lors de l'adossement d'une personne assise sur la chaise (10) en augmentant l'angle entre ses sections d'accoudoir (3.1) et la section centrale (3.2), et que la plaque d'appui (4) est également flexible et peut se déplacer dans sa section supérieure (4.1) avec la section centrale (3.2) du support d'appui (3) lorsque sa section inférieure (4.2) est appliquée sur le bassin de la personne (10) assise sur la chaise.
  2. Chaise à accoudoirs selon la revendication 1, caractérisée par le fait que le support d'appui (4) est souple à tel point que, en cas de force d'appui de 400 N induite à 40 cm au-dessus du siège (1) dans le centre de la plaque d'appui (4), l'angle entre les sections d'accoudoir (3.1) et la section centrale (3.2) est augmenté d'au moins 4 degrés.
  3. Chaise à accoudoirs selon l'une des revendications 1 ou 2, caractérisée par le fait que la plaque d'appui (4) est souple à tel point qu'elle exerce une force, en cas d'augmentation de l'angle entre les sections d'accoudoir (3.1) et la section centrale (3.2) de 5 degrés dans la section inférieure (4.2) à 10 cm au-dessus du siège (1), ne dépassant pas 20 N sur le bassin de la personne assise sur la chaise (10).
  4. Chaise à accoudoirs selon l'une des revendications 1 à 3, caractérisée par le fait qu'elle est un siège à suspension.
  5. Chaise à accoudoirs selon l'une des revendications 1 à 4, caractérisée par le fait qu'elle présente une ossature tubulaire (5) et que des sections terminales (5.1) de l'ossature tubulaire (5) sont relevées dans la zone avant de la chaise jusqu'à la hauteur des accoudoirs et sont raccordées par aboutement aux sections d'accoudoir (3.1) du support d'appui (3).
  6. Chaise à accoudoirs selon l'une des revendications 1 à 5, caractérisée par le fait que le support d'appui (3) est une pièce moulée par injection en matière plastique en une pièce.
  7. Chaise à accoudoirs selon l'une des revendications 1 à 6, caractérisée par le fait que la plaque d'appui (4) présente un élément de soutien flexible (7) pourvu d'un rembourrage.
  8. Chaise à accoudoirs selon la revendication 7, caractérisée par le fait que l'élément de soutien (7) est une pièce moulée par injection en matière plastique en une pièce.
  9. Chaise à accoudoirs selon l'une des revendications 7 ou 8, caractérisée par le fait que l'élément de soutien (7) présente deux montants (7.1) latéraux en forme de baguette et des lamelles (7.2) s'étendant entre ces derniers rotatifs autour de ce prolongement longitudinal.
  10. Chaise à accoudoirs selon la revendication 9, caractérisée par le fait que les lamelles (7.2) se ramifient contre les montants latéraux (7.1) en réalisant des sections d'articulation (7.3) plus étroites.
  11. Chaise à accoudoirs selon la revendication 10, caractérisée par le fait que des sections d'articulation (7.3) adjacentes de lamelles adjacentes (7.2) s'unissent contre les montants latéraux (7.1) en réalisant des sections de liaison (7.4) plus larges.
  12. Chaise à accoudoirs selon l'une des revendications 9 à 11, caractérisée par le fait que les montants latéraux (7.1) ainsi que les lamelles (7.2) sont flexibles concernant leur prolongement longitudinal.
EP20090009853 2008-08-12 2009-07-30 Dossier Not-in-force EP2153752B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810038695 DE102008038695B3 (de) 2008-08-12 2008-08-12 Rückenlehne

Publications (2)

Publication Number Publication Date
EP2153752A1 EP2153752A1 (fr) 2010-02-17
EP2153752B1 true EP2153752B1 (fr) 2015-03-18

Family

ID=41334490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090009853 Not-in-force EP2153752B1 (fr) 2008-08-12 2009-07-30 Dossier

Country Status (2)

Country Link
EP (1) EP2153752B1 (fr)
DE (1) DE102008038695B3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD943326S1 (en) * 2019-03-26 2022-02-15 Bock 1 Gmbh & Co. Kg Office chair backrest

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064137A (en) * 1936-01-23 1936-12-15 Louis J Zerbee Spring base furniture
US4522444A (en) * 1982-09-15 1985-06-11 Charles Pollock Stacking chair
NZ272892A (en) * 1995-08-30 1997-08-22 Formway Furniture Ltd Chair back mounting; comprises a member attached to or forming part of a chair arm and tortion part with one end attached to the member and the other to the chair back
DE102006040835B4 (de) * 2006-08-31 2017-06-08 Girsberger Holding Ag Sitz- und/oder Liegemöbel
DE202006015822U1 (de) * 2006-10-16 2007-03-15 Ballendat, Martin Stuhlrücken sowie Stuhl hiermit
DE202008004942U1 (de) * 2008-04-10 2008-07-03 Wu, Yao-Chuan, Ta Chi Tsun Rückenlehne

Also Published As

Publication number Publication date
EP2153752A1 (fr) 2010-02-17
DE102008038695B3 (de) 2010-01-28

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