EP1447029B1 - Dossier - Google Patents
Dossier Download PDFInfo
- Publication number
- EP1447029B1 EP1447029B1 EP03003522A EP03003522A EP1447029B1 EP 1447029 B1 EP1447029 B1 EP 1447029B1 EP 03003522 A EP03003522 A EP 03003522A EP 03003522 A EP03003522 A EP 03003522A EP 1447029 B1 EP1447029 B1 EP 1447029B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- backrest
- frame
- support
- transverse web
- side parts
- 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
Links
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 208000007623 Lordosis Diseases 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims 1
- 210000002414 leg Anatomy 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- 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
- A47C5/12—Chairs of special materials of plastics, with or without reinforcement
-
- 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
- A47C7/38—Support for the head or the back for the head
Definitions
- the invention relates to the field of seating, in particular a backrest for an office chair, in which in a frame, a membrane is clamped.
- a chair of the kind described is e.g. from EP 0308538 A known.
- the cardanic bearing is achieved in that the backrest has a spherical segment-shaped formation, which is mounted in a second spherical segment-shaped formation on the backrest support.
- the center around which the backrest can move lies on the upholstery surface.
- Laterally and above and below the universal joint spring elements between backrest and backrest support are provided, e.g. Elastic polyester elements that exert spring forces both perpendicular and parallel to the backrest surface.
- Another chair with gimbaled backrest is known from EP 0935934 A.
- the gimbal bearing is achieved there by means of a circular cylindrical rubber-elastic element, on whose two end faces in each case a steel plate is vulcanized, which is connected to the backrest or the backrest support by screws. The user can thus move the back against the spring forces of the rubber-elastic element.
- the backrest support can still be pressed against a return spring to the rear.
- the upholstery On its user interface, the upholstery is basically rigid and kinked in the area of the rubber mount.
- this known chair has the advantage that the gimbal comprises fewer items, and thus is less expensive to produce. Due to the conventional design of the user interface of the backrest cushion but no optimal support of the user's back is achieved. Furthermore, the articulation of the backrest support to the chair column and the connection to a return spring is very expensive and thus cost-ineffective. Finally, it is also disadvantageous that the rubber-elastic bearing offers no tear protection: if the vulcanized to the rubber-elastic element panels should solve, the backrest falls from the backrest carrier.
- the backrest is designed as a frame with a membrane spanned therein.
- the frame consists of two substantially vertically extending side parts, and an upper and a lower, the two side parts connecting crosspiece.
- At the lower crosspiece of the frame is suspended by a dorsokine perennial flexible joint on the upper part of a backrest support, which consists of aluminum and is hinged with its fork-shaped lower part of the tilt mechanism.
- this chair offers a very high level of seating comfort, it is also relatively expensive to manufacture, and can also be further optimized with regard to the dorsokinetic support of the lumbar vertebral lordosis.
- a chair is known from US 5,810,438 A, in which the back part, the seat part and the two armrests are integrally connected.
- a spring member is provided between the seat and back, which is also integrally connected to the seat and backrest.
- the known chair is an injection molded part, and is manufactured by gas injection technique (GIT).
- the known chair has remarkable manufacturing advantages because the number of components and assembly steps are minimized.
- he has disadvantages in terms of seating comfort, because the backrest is actually suspended from the armrests, and, especially when the central spring member is provided so that only very limited meets the requirements of the user in terms of elastic support of the back.
- this component is an injection molded part made of a glass fiber reinforced polyamide plastic, preferably a Polyarylamid, and produced by gas injection technique (GIT), which can be produced largely hollow items.
- the backrest on the one hand can unfold the membrane optimal support forces for the back of the user, but on the other hand elegantly and technically inexpensive and stable causes a cardano-elastic connection between the back and backrest support.
- the invention also makes it possible, the backrest together with backrest support as a visible part, ie without special panel form, which not only reduces the number of items and thus the manufacturing costs, but also shapes the design and realized a high recognition value.
- the number of structural elements of the backrest according to the invention is reduced to a minimum, and thus expresses the manufacturing effort. Due to the largely hollow plastic parts a very low weight is achieved. However, the backrest according to the invention still has a whole a particularly high degree of stability, because a tearing off the back of the wearer under the influence of force is no longer possible due to the one-piece design. Furthermore, the backrest according to the invention has a very high rigidity and resistance to mechanical stress in the selected dimensions and the selected plastic.
- the backrest according to the invention has the further advantage that ergonomically desirable elastic support forces for the user's back are also contributed by the backrest support, while the aluminum support is rigid.
- a backrest according to the invention comprising the frame 1, the backrest support 6, and the neck support 15.
- the frame 1 consists of the left-hand side part 2 and the right-hand side part 3. These two side parts 2, 3 are connected to one another via the lower transverse web 4 and the upper transverse web 5.
- the side parts 2, 3 have, on the outside, a groove 26 into which a membrane (not shown) made of an elastic fabric is clipped with its side edges bordered with keder.
- the backrest support 6 comprises the left leg 7 and the right leg 8, which converge fork-shaped in the connecting piece 18.
- the connecting piece 18 runs smoothly and without transition into the lower transverse web 4.
- the legs In front, the legs have 7.8 bearing blocks 9.10, on which the rear part of the (not shown) seat plate is stored. At the very front, the legs 7.8 recesses 22, in which metallic fittings 11,12 are used and tightened. By means of these fittings 11,12 of the backrest support 6 is hinged to the (not shown) inclination mechanism of the chair.
- a tilting mechanism for example, the mechanism described in DE 196 40 564 A can be used with synchronous control of seat and backrest.
- a metallic fitting 13 with a bearing 14 for the neck support 15 is fastened by means of screws.
- the neck support 15 is pivotally mounted on the sleeve 19 via the complementary bearing part 23.
- the pivotability to a predetermined extent is effected by the sliding block 24, which can move in the suitably shaped inner part of the bearing 23.
- the screw 27 cup springs 25 By means of standing under the action of the screw 27 cup springs 25, a friction force is generated on the bearing 23, which allows the neck support can indeed be pivoted, but then fixed in a desired position.
- the neck support 15 can be adjusted by moving the rod 20 in the sleeve 19.
- the (not shown) head pad is attached.
- the plastic moldings of the backrest are largely hollow. Only in the middle part of the upper crossbar 5 and in the lower parts of the two legs 7,8 of the backrest support 6, the molding material is compact. This is useful so that the screws for the fittings 11,12 and 13 have a firm grip.
- the vcm user-generated leaning force is not only taken up by the backrest frame, but also by the backrest support integrally molded. This increases the dorsokinetic support function of the back in an advantageous manner.
- the plastic compound used is a glass fiber reinforced thermoplastic.
- Resin based on polyarylamide preferably under the trademark IXEF 1022 or 1032 from Solvay S.A. distributed material.
- the moldings are produced by gas injection technique (GIT), wherein the molten molding material is displaced by an under high pressure in the cavity of the injection mold injected inert gas, preferably nitrogen, to the mold wall.
- GIT gas injection technique
- the backrest according to the invention the task-related advantages in full: it causes excellent seating comfort through optimal support of the back, is compared to the prior art, significantly reduced effort to produce, transport and assemble, and offers by industrial design produces a high level of aesthetics and design.
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Chairs Characterized By Structure (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Claims (5)
- Dossier pour une chaise, qui est réalisé sous la forme d'un encadrement (1) dans lequel est tendue une membrane, l'encadrement (1) étant constitué par deux parties latérales (2, 3) s'étendant essentiellement en direction verticale et par deux traverses (4, 5) s'étendant essentiellement en direction horizontale et reliant les parties latérales (2, 3), la traverse supérieure (5) reliant les deux parties latérales (2, 3) à leurs extrémités supérieures et la traverse inférieure (4) reliant les deux parties latérales (2, 3) dans la zone des vertèbres lombaires de l'utilisateur, l'encadrement (1) étant suspendu au milieu de la traverse inférieure (4) à un support de dossier (6) comprenant deux branches (7, 8) s'étendant en dessous du siège, caractérisé en ce que- le support de dossier (6) est relié en une seule pièce à l'encadrement (1) ;- l'encadrement (1) et le support de dossier (6) qui lui est relié en une seule pièce sont constitués d'un élément moulé obtenu par moulage par injection constitué d'une matière synthétique à base de polyamide renforcée par des fibres de verre, de préférence un polyaramide ;- l'élément moulé est creux à l'exception de la zone médiane de la traverse supérieure (5) et des deux branches (7, 8) du support de dossier (6) ; et- les deux branches (7, 8) du support de dossier (6) convergent en une seule pièce de liaison (18), la pièce de liaison (18) venant s'insérer complètement et sans transition dans la traverse inférieure (4) de l'encadrement (1).
- Dossier selon la revendication 1, caractérisé en ce qu'on prévoit, sur les deux branches (7, 8) du support de dossier (6), respectivement un support de palier (9, 10) appliqué par façonnement, pour 1e montage de la plaque pour s'asseoir et, dans la zone antérieure, des évidements (22) pour la réception d'armatures (11, 12) à des fins de liaison avec la mécanique d'inclinaison, et en ce qu'on prévoit au milieu de la traverse supérieure (5) une armature (13) qui peut être fixée avec des vis, comportant un palier (14) pour la réception d'un appui-tête (15).
- Dossier selon la revendication 1, caractérisé en ce qu'on prévoit, sur les deux parties latérales (2, 3) de l'encadrement (1), à hauteur de la traverse inférieure (4), des supports d'entretoises (16, 17) dans lesquels peut venir se fixer une bande pour le support de la lordose des vertèbres lombaires de l'utilisateur.
- Dossier selon la revendication 2, caractérisé en ce que, dans le palier (14), contre l'armature (13), sur la traverse supérieure (5), est montée une douille (20) apte à pivoter dans laquelle on prévoit une barre (21), de manière à pouvoir la retirer, sur laquelle est fixée la plaque de support (22) du rembourrage de l'appui-tête (15).
- Procédé pour la fabrication de dossier selon un revendication 1, caractérisé en ce qu'on fabrique l'élément moulé via une technique d'injection assistée au gaz (GIT).
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50304649T DE50304649D1 (de) | 2003-02-16 | 2003-02-16 | Rückenlehne |
ES03003522T ES2269841T3 (es) | 2003-02-16 | 2003-02-16 | Respaldo. |
EP03003522A EP1447029B1 (fr) | 2003-02-16 | 2003-02-16 | Dossier |
AT03003522T ATE336187T1 (de) | 2003-02-16 | 2003-02-16 | Rückenlehne |
CA002455046A CA2455046A1 (fr) | 2003-02-16 | 2004-01-13 | Dossier de siege |
US10/759,195 US7147288B2 (en) | 2003-02-16 | 2004-01-20 | Backrest |
MXPA04000841A MXPA04000841A (es) | 2003-02-16 | 2004-01-27 | Respaldo. |
AU2004200278A AU2004200278B2 (en) | 2003-02-16 | 2004-01-27 | Backrest |
NZ530857A NZ530857A (en) | 2003-02-16 | 2004-01-29 | Backrest |
CN200410004183.0A CN100506116C (zh) | 2003-02-16 | 2004-02-13 | 靠背 |
CN200420003810.4U CN2749372Y (zh) | 2003-02-16 | 2004-02-16 | 靠背 |
HK05101035.0A HK1068526A1 (en) | 2003-02-16 | 2005-02-07 | Backrest |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03003522A EP1447029B1 (fr) | 2003-02-16 | 2003-02-16 | Dossier |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1447029A1 EP1447029A1 (fr) | 2004-08-18 |
EP1447029B1 true EP1447029B1 (fr) | 2006-08-16 |
Family
ID=32668993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03003522A Expired - Lifetime EP1447029B1 (fr) | 2003-02-16 | 2003-02-16 | Dossier |
Country Status (11)
Country | Link |
---|---|
US (1) | US7147288B2 (fr) |
EP (1) | EP1447029B1 (fr) |
CN (2) | CN100506116C (fr) |
AT (1) | ATE336187T1 (fr) |
AU (1) | AU2004200278B2 (fr) |
CA (1) | CA2455046A1 (fr) |
DE (1) | DE50304649D1 (fr) |
ES (1) | ES2269841T3 (fr) |
HK (1) | HK1068526A1 (fr) |
MX (1) | MXPA04000841A (fr) |
NZ (1) | NZ530857A (fr) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3808952A1 (de) * | 1988-03-17 | 1989-10-05 | Basf Ag | Lichtempfindliche, photopolymerisierbare druckplatte |
JP5005167B2 (ja) * | 2004-10-13 | 2012-08-22 | 株式会社岡村製作所 | 椅子の背凭れ構造 |
JP5002835B2 (ja) * | 2005-10-27 | 2012-08-15 | コクヨ株式会社 | 部材の接続構造 |
JP4719905B2 (ja) | 2005-10-27 | 2011-07-06 | コクヨ株式会社 | 椅子 |
JP4945781B2 (ja) | 2005-11-11 | 2012-06-06 | コクヨ株式会社 | 椅子 |
JP4747311B2 (ja) | 2005-11-11 | 2011-08-17 | コクヨ株式会社 | 椅子 |
KR100756349B1 (ko) * | 2006-12-18 | 2007-09-10 | 제일모직주식회사 | 나일론계 수지 복합재 |
KR100878574B1 (ko) * | 2007-12-28 | 2009-01-15 | 제일모직주식회사 | 나일론/보강 섬유 조성물 |
CN101951812B (zh) * | 2008-01-16 | 2014-11-12 | 国誉株式会社 | 椅子 |
CN102176847B (zh) * | 2008-10-16 | 2014-04-09 | 株式会社冈村制作所 | 椅子 |
DE102010009356A1 (de) * | 2010-02-25 | 2011-08-25 | Dr. Ing. h.c. F. Porsche Aktiengesellschaft, 70435 | Sitz in einem Fortbewegungsmittel |
FR2971977B1 (fr) * | 2011-02-28 | 2013-02-15 | Peugeot Citroen Automobiles Sa | Procede de realisation d'un complexe de siege a effet 3d, et siege associe |
DE102011101388B3 (de) * | 2011-05-12 | 2012-11-15 | Stephan Meyer | Sitzmöbel |
JP5945114B2 (ja) * | 2011-11-16 | 2016-07-05 | 株式会社イトーキ | 椅子及びこれに取り付けるオプション品 |
US11304528B2 (en) | 2012-09-20 | 2022-04-19 | Steelcase Inc. | Chair assembly with upholstery covering |
US11229294B2 (en) | 2012-09-20 | 2022-01-25 | Steelcase Inc. | Chair assembly with upholstery covering |
US8998339B2 (en) | 2012-09-20 | 2015-04-07 | Steelcase Inc. | Chair assembly with upholstery covering |
US10299601B2 (en) * | 2015-09-17 | 2019-05-28 | Sv Tool Corporation | Auto-adjusting headrest for an ergonomic chair |
JP6109388B2 (ja) * | 2016-05-27 | 2017-04-05 | 株式会社イトーキ | 椅子 |
US11109683B2 (en) | 2019-02-21 | 2021-09-07 | Steelcase Inc. | Body support assembly and method for the use and assembly thereof |
US11357329B2 (en) | 2019-12-13 | 2022-06-14 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
CN115674718A (zh) * | 2022-10-19 | 2023-02-03 | 连云港神鹰碳纤维自行车有限公司 | 一种碳纤维椅子的制作方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB844819A (en) * | 1957-06-20 | 1960-08-17 | Polymer Corp | Coated articles and method of production thereof |
EP0308538B1 (fr) | 1987-09-25 | 1991-12-18 | Christof Stoll GmbH & Co KG | Dossier de chaise |
DE9102086U1 (de) * | 1991-02-22 | 1992-06-17 | Ritter, Wolfgang, 7000 Stuttgart | Stuhl mit einer verstellbaren Rückenlehne |
US5810438A (en) * | 1994-06-13 | 1998-09-22 | Herman Miller, Inc. | One piece molded seating structure |
DE19640564A1 (de) | 1996-10-01 | 1998-04-02 | Stoll Sedus Ag | Sitzmöbel mit neigbarem Sitz und Rückenlehne |
US5945865A (en) | 1997-01-10 | 1999-08-31 | Microchip Technology Incorporated | Full-swing high voltage data latch |
DE29802360U1 (de) | 1998-02-12 | 1999-06-10 | Vogtherr, Burkhard, Mulhouse | Funktionsstuhl |
US6113186A (en) * | 1999-05-21 | 2000-09-05 | Chromcraft/Revington Company | Multiple seat assembly I |
DE10048779A1 (de) | 2000-09-29 | 2002-04-18 | Stoll Sedus Ag | Rückenlehne |
AT409922B (de) * | 2001-06-06 | 2002-12-27 | Ballendat Martin | Stuhl mit einer rückenlehne |
US6609755B2 (en) * | 2001-06-15 | 2003-08-26 | Hon Technology Inc. | Ergonomic chair |
US6550866B1 (en) * | 2002-01-24 | 2003-04-22 | Tung-Hua Su | Chair backrest with ventilating function |
US7134722B2 (en) * | 2002-02-08 | 2006-11-14 | Kokuyo Co., Ltd. | Chair |
US6945601B1 (en) * | 2003-12-23 | 2005-09-20 | Yao-Chuan Wu | Multi-stage backrest assembly |
US6843530B1 (en) * | 2003-12-23 | 2005-01-18 | Yao-Chuan Wu | Multi-stage backrest assembly |
-
2003
- 2003-02-16 ES ES03003522T patent/ES2269841T3/es not_active Expired - Lifetime
- 2003-02-16 DE DE50304649T patent/DE50304649D1/de not_active Expired - Lifetime
- 2003-02-16 AT AT03003522T patent/ATE336187T1/de active
- 2003-02-16 EP EP03003522A patent/EP1447029B1/fr not_active Expired - Lifetime
-
2004
- 2004-01-13 CA CA002455046A patent/CA2455046A1/fr not_active Abandoned
- 2004-01-20 US US10/759,195 patent/US7147288B2/en not_active Expired - Fee Related
- 2004-01-27 MX MXPA04000841A patent/MXPA04000841A/es active IP Right Grant
- 2004-01-27 AU AU2004200278A patent/AU2004200278B2/en not_active Ceased
- 2004-01-29 NZ NZ530857A patent/NZ530857A/en unknown
- 2004-02-13 CN CN200410004183.0A patent/CN100506116C/zh not_active Expired - Fee Related
- 2004-02-16 CN CN200420003810.4U patent/CN2749372Y/zh not_active Expired - Lifetime
-
2005
- 2005-02-07 HK HK05101035.0A patent/HK1068526A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE336187T1 (de) | 2006-09-15 |
CA2455046A1 (fr) | 2004-08-16 |
US7147288B2 (en) | 2006-12-12 |
NZ530857A (en) | 2005-02-25 |
EP1447029A1 (fr) | 2004-08-18 |
CN1537490A (zh) | 2004-10-20 |
CN100506116C (zh) | 2009-07-01 |
AU2004200278A1 (en) | 2004-09-02 |
ES2269841T3 (es) | 2007-04-01 |
HK1068526A1 (en) | 2005-04-29 |
CN2749372Y (zh) | 2006-01-04 |
DE50304649D1 (de) | 2006-09-28 |
MXPA04000841A (es) | 2004-12-06 |
AU2004200278B2 (en) | 2006-09-14 |
US20040195899A1 (en) | 2004-10-07 |
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