EP2337476A1 - Dossier pour une chaise - Google Patents

Dossier pour une chaise

Info

Publication number
EP2337476A1
EP2337476A1 EP08874910A EP08874910A EP2337476A1 EP 2337476 A1 EP2337476 A1 EP 2337476A1 EP 08874910 A EP08874910 A EP 08874910A EP 08874910 A EP08874910 A EP 08874910A EP 2337476 A1 EP2337476 A1 EP 2337476A1
Authority
EP
European Patent Office
Prior art keywords
backrest
back cover
chair
lumbar support
side arms
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
EP08874910A
Other languages
German (de)
English (en)
Other versions
EP2337476B1 (fr
Inventor
Egon Bräuning
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.)
Vitra AG
Original Assignee
Vitra Patente 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 Vitra Patente AG filed Critical Vitra Patente AG
Publication of EP2337476A1 publication Critical patent/EP2337476A1/fr
Application granted granted Critical
Publication of EP2337476B1 publication Critical patent/EP2337476B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/54—Supports for the arms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C5/00—Chairs of special materials
    • A47C5/04—Metal chairs, e.g. tubular
    • A47C5/06—Special adaptation of seat upholstery or fabric for attachment to tubular chairs
    • 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
    • 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
    • A47C7/42—Support for the head or the back for the back of detachable or loose 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
    • A47C7/46—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 present invention relates to a chair of the type with a floor-mounted underframe, a patch on the base mechanism, a seated on the mechanics seat and attached to the backrest mechanism.
  • the backrest has a backrest frame, which is provided with a padding and a cover.
  • the backrest is articulated on the mechanism and can be pivoted from a basically upright zero position to a rearwardly directed tilt position. The movements of the seat and backrest are synchronized with each other.
  • the invention is based on the task of proposing a further improved backrest which supports the user leaning against it ergonomically even more effectively. Another object is to make the connection of the backrest to the chair at the same time easy to install and thus more cost-effective. Finally, there is the task of efficiently designing the backrest to allow optional equipment with different armrests on the chair.
  • the chair for which the backrest is designed has a base placed on the floor, a mechanism attached to the base and a seat fitted to the mechanism.
  • the backrest is attached to the mechanism, the backrest having a backrest frame whose inside surface is made from spanned over a back cover.
  • the backrest frame has a lower
  • BESTATIGUNGSKOPIE The upper end of the side arms are bridged by a transverse strip which elastically deforms under load from a user sitting in the chair in the direction of the force exerted by the leaning user back force, but against the base part from which extends on either side Force is vertically rigid from above.
  • the height of the cross bar is in cross section a multiple of the thickness.
  • the back cover is provided with a seam between the base part, the side arms and the cross bar framed with the back cover seams.
  • an elastically deformable tongue protrudes into a lumbar support fastened to the base section.
  • the stiffness of the lumbar support is adjustable.
  • To adjust the rigidity of the lumbar support is a displaceable in the height position counter bearing.
  • the upper ends of the side arms have connecting elements, which interact with detent with complementary organs on the cross bar.
  • the base section is provided on the user side as well as the area surrounded by the base section, the side arms and the cross bar with a padding, which is spanned in the free space on both sides of the back cover. The seams go through both sides of the back cover.
  • the seams are in principle designed as closed ovals and the bottom seam has a recess to allow the retraction of the tongue of the lumbar support.
  • the backrest frame and the crossbar are made of plastic.
  • the base section has a laterally open cavity, which is pushed open is intended to a fitting of a back strap, which is intended for articulation of the backrest on the mechanism.
  • the connector has a receptacle that is used to attach an armrest, otherwise it can be closed with a cover.
  • the outer edges of the back cover are fitted to strips, which are clipped into locking holes with their catch organs.
  • Figure 1A - a chair with the inventive backrest, with upholstery, without cover, without armrests, in an upright zero position, in a perspective front view;
  • Figure 1 B the chair according to Figure 1A, in side view;
  • Figure 2 the chair according to Figure 1A 1 with fixed armrests as the first type;
  • FIG 3A the chair according to Figure 1A, with adjustable armrests as a second type, in a front perspective view;
  • FIG. 3C the chair according to Figure 3A, without upholstery in the backrest, in front view;
  • FIG. 3D the chair according to Figure 3C, with upholstery in the backrest, in front view;
  • Figure 4 the chair according to Figure 1A, in partial exploded view, with provided armrests of both types;
  • FIG. 5B the arrangement according to Figure 5A, in plan view
  • FIG. 5C both back yokes from FIG. 4 with axle rod and bearing parts, in explosive view;
  • FIG. 5D shows the adjustable armrest from FIG. 4 of the arm receptacle in FIG.
  • FIG. 6A shows the backrest from FIG. 4, in a perspective front view
  • FIG. 6B shows the backrest according to FIG. 6A, without upholstery and covering, with provided lumbai supports of both types, in an exploded view;
  • FIG. 6C shows the arrangement according to FIG. 6A, in a perspective rear view
  • FIG. 6D shows the arrangement according to FIG. 6A, with an approximated frame strip, in a top view in perspective
  • FIG. 6E shows the arrangement according to FIG. 6D, in a normal standing perspective view
  • Figure 6F the arrangement according to Figure 6D, with latched frame strip and provided coating strips
  • Figure 6G a complete backrest, with adjustable Lumbai flesh, padding and cover
  • FIG. 6H shows a section through the transverse strip from FIG. 6B on the line A-A.
  • the chair resting on a base 1 has no armrests.
  • the backrest 4 is hinged to the mechanism 2 and the seat 3.
  • the backrest 4 has a backrest frame 40 in which a lumbar support 48 provided with a padding 49 and a further padding 49 are inserted.
  • On both sides of the flock frame 40 has a cavity 41 for attachment of the back yoke 5, which in turn can be fixed here not provided armrests. Therefore, the receptacle 51 of the back bar 5 is currently closed with a cover 57.
  • a next configuration see FIG.
  • a bow-shaped, not height-adjustable armrest 6 of the first type is attached to the receptacle 51.
  • a further equipment see Figures 3A to 3D) are mounted on the receptacles 51 instead of not height adjustable armrests 6 of the first type in each case adjustable in height armrests 7 second type.
  • FIG. 4 For the sake of completeness, the main components of the entire chair are given, which next to the base 1 and the mechanism 2 has first the seat 3, which is composed of a seat plate 30, the padding 39 and the outer cover 37.
  • An adjusting lever 31 serves to adjust the depth of the seat 3.
  • the two back straps 5 serve on the one hand to receive the backrest 4 and on the other hand at the same time to fix one of the two types of armrests 6, 7. If you want to do without armrests, the cover 57 comes as a closure on the blank holder 51st
  • FIGS. 5A to 5D A back yoke 5 is divided into a projection 52 which serves with the bearing parts 57 for connection to the mechanism 2.
  • the branch 50 extends, which merges into the connecting piece 53.
  • the connection piece 53 In the connection piece 53 is the outwardly open receptacle 51, while inside a raised guide bar 54 is located.
  • stubs 58 From the branch 50, in each case directed towards one another, stubs 58 which receive an axle rod 55 for articulation on the seat 3.
  • different screw holes 56 are present.
  • the adjustable armrest 7 has the support 70, on the inside of which the mechanical block 72 is located, which is intended for insertion into the receptacle 51. From the support of the knob 73 protrudes, upon actuation, the armrest 7 can be adjusted in height.
  • the visible under the armrest 7 Lisserad 71 is used to unlock in order to adjust the armrest 74 in the horizontal plane can.
  • the backrest frame 40 is structured in the base section 42 with the lateral cavities 41 which are surrounded by second latching holes 422. Facing the user, a bearing groove 421 for receiving the plate-shaped counter-bearing 482 extends centrally on the base part 42 and can be varied in the height position by means of an adjusting lever 484 engaging in a toothed wheel 483. At the bottom of the base portion 42 are first detent holes 420. From the two sides of the base portion 42, the two side arms 43 extend, the uppermost conclude with a connection element 430. The open distance between the upper ends of the two side arms 43 is bridged by a transverse strip 44 which has complementary members 440 at its ends, which form a latching plug connection with the connection elements 430.
  • the cross bar 44 has a cross section with a multiple of the height in relation to the thickness.
  • the cross bar 44 flexes elastically when the user leans against it in the sitting position, however, in principle, no deflection is possible at a load from above.
  • the plate-shaped lumbar support 47 has in the non-adjustable Ausrmileung several equal tongues 471, between which are vertically downwardly running cuts 470.
  • the lumbar support 47 is provided with a padding 49, preferably a foam surround.
  • the lumbar support 47 is placed on the base part 42 of the back frame 40, wherein the tongues 471 protrude beyond the base portion 42 into the space between the side arms 43.
  • the also plate-shaped lumbar support 48 has a lying in the middle wide tongue 481, which projects beyond the outer tongues 481, which are divided by cuts 480. This lumbar support 48 has a padding on the user side 49.
  • the lumbar support 48 is positively on the base portion 42, wherein the counter-bearing 482 is adjustable in height and thus touches the back at various positions on the wide tongue 481, what their the user changes effective stiffness.
  • the free space remaining above in the backrest frame 40 is lined with inlaid padding, for example with a foam plate.
  • the tongues 481 of the adjustable lumbar support 48 protrude, the abutment 482 resting against the middle tongue 481.
  • screw holes 423 are arranged around the knob 73 around to fix the lumbar support 48 by means of screws.
  • a cup-shaped frame strip 45 is provided, from which lugs 450 rise, which are provided for latching in the first detent holes 420, wherein the lower edge of the on the user side lying back cover 8 outside pulled over the frame strip 45 and eg is glued.
  • the lower edge of the lying on the back side back cover 8 is reinforced with a terminal block, not shown, and hooked into the longitudinal groove 424. After snapping the frame strip 45 is covered by this hanging in the longitudinal groove 424 terminal block and thereby fixed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

L'invention concerne un dossier pour une chaise. La chaise pour laquelle le dossier (4) est conçu a un bâti inférieur (1) reposant sur le sol, une mécanique (2) placée sur le bâti inférieur (1) et un siège (3) placé sur la mécanique (2). Le dossier (4) est fixé à la mécanique (2), le dossier (4) présentant un cadre (40) sur la surface intérieure duquel est tendu un revêtement (8). Le cadre (40) a une partie de base inférieure (42) d'où s'étend vers le haut, des deux côtés, un bras latéral (43). Les extrémités supérieures des bras latéraux sont reliées par une traverse (44) qui se déforme élastiquement dans la direction de la force exercée par le dos de l'usager s'y adossant sous la charge exercée par un usager assis sur la chaise mais qui résiste à la flexion due à une force exercée perpendiculairement à partir du haut. La hauteur de la traverse (44) est, en coupe transversale, un multiple de l'épaisseur. Le revêtement (8) du dossier est pourvu de coutures (80) consolidant le revêtement (8) du dossier dans un espace intercalaire bordé entre la partie de base (42), les bras latéraux (43) et la traverse (44).
EP08874910A 2008-10-21 2008-10-21 Dossier pour une chaise Active EP2337476B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2008/000436 WO2010045745A1 (fr) 2008-10-21 2008-10-21 Dossier pour une chaise

Publications (2)

Publication Number Publication Date
EP2337476A1 true EP2337476A1 (fr) 2011-06-29
EP2337476B1 EP2337476B1 (fr) 2012-08-15

Family

ID=40756278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08874910A Active EP2337476B1 (fr) 2008-10-21 2008-10-21 Dossier pour une chaise

Country Status (3)

Country Link
EP (1) EP2337476B1 (fr)
ES (1) ES2392577T3 (fr)
WO (1) WO2010045745A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1402398B1 (it) * 2010-10-21 2013-09-04 Bonetti Struttura di schienale, particolarmente per sedie.
DE202010008894U1 (de) 2010-10-26 2010-12-30 Vitra Patente Ag Höhenverstellbare Lumbalstütze für einen Stuhl
US20230284780A1 (en) * 2022-03-08 2023-09-14 Teng-Jen Yang One-Piece Chair Backs and Chairs Having the Same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5253923A (en) * 1991-08-21 1993-10-19 Leroy Gootee Seat assembly having wedged locking mechanism
DE19754817A1 (de) * 1997-12-10 1999-06-17 Stoll Sedus Ag Rückenlehne
AU783829B2 (en) * 2000-09-28 2005-12-08 Formway Furniture Limited A reclinable chair
US6390553B1 (en) * 2000-10-11 2002-05-21 Leblanc Andrew J. Back-support device
DE20216302U1 (de) 2002-10-22 2003-04-17 Vitra Patente Ag Muttenz Neigbare Rückenlehne mit elastischer Bespannung
CN105832036B (zh) 2005-03-01 2019-12-17 霍沃思公司 具有腰部和骨盆支承件的座椅靠背
DE502006000810D1 (de) * 2005-03-04 2008-07-10 Provenda Marketing Ag Sitzmöbel mit Rückenlehne und Armstütze
JP2009509592A (ja) 2005-10-03 2009-03-12 ヴィトラ・パテンテ・アクチエンゲゼルシャフト 椅子

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010045745A1 *

Also Published As

Publication number Publication date
WO2010045745A1 (fr) 2010-04-29
ES2392577T3 (es) 2012-12-12
EP2337476B1 (fr) 2012-08-15

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