EP1931232B1 - Siege - Google Patents

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Publication number
EP1931232B1
EP1931232B1 EP05786593A EP05786593A EP1931232B1 EP 1931232 B1 EP1931232 B1 EP 1931232B1 EP 05786593 A EP05786593 A EP 05786593A EP 05786593 A EP05786593 A EP 05786593A EP 1931232 B1 EP1931232 B1 EP 1931232B1
Authority
EP
European Patent Office
Prior art keywords
backrest
chair
pivot shaft
seat
docking
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
EP05786593A
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German (de)
English (en)
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EP1931232A1 (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
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Filing date
Publication date
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Publication of EP1931232A1 publication Critical patent/EP1931232A1/fr
Application granted granted Critical
Publication of EP1931232B1 publication Critical patent/EP1931232B1/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
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • 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
    • 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

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 back frame, which carries an elastically deformable backrest part with a back plate, wherein the back plate has a back part, with which a head extension is connected.
  • the backrest is pivotable about a first axis of rotation from a basically upright zero position to a rearwardly directed tilt position. The movements of the seat and backrest are synchronized with each other.
  • a chair of the type mentioned is, for example, in the EP 1 039 816 B1 disclosed.
  • the US 6,257,665 B1 relates to a chair with a base resting on the base, a placed on the base mechanism, a seated on the mechanics seat and attached to the mechanics backrest.
  • the backrest has a back frame, which carries an elastically deformable backrest part with a back plate, wherein the back plate has a back part, with which a head extension is connected.
  • the backrest is pivotable about a first axis of rotation from a basically upright zero position to a rearwardly inclined position of inclination, wherein the movements of the seat and backrest are synchronized with each other.
  • the invention has for its object to propose a chair of the type defined above with perfected ergonomic function.
  • the backrest when the backrest is in the rearwardly inclined inclination position, the support of shoulder area and head of the user should be improved.
  • the chair has a base placed on the floor, a mechanism attached to the base, a seat mounted on the mechanism and a backrest attached to the mechanism.
  • the backrest has a backrest frame, which carries an elastically deformable backrest part with a back plate.
  • the back plate has a back part to which a head attachment is connected.
  • the backrest is about a first axis of rotation from a basically upright zero position to a rearwardly inclined tilt position pivotable. The movements of the seat and backrest are synchronized with each other.
  • the back part and the head attachment of the back plate merge into one another in one piece.
  • the head attachment is divided into a lower first head section, which attaches to the back part, and an upper second head section, wherein the first head section together with a neighboring portion of the second head section forms a neck region.
  • a fourth docking part is provided in the neck area.
  • the back part is divided into an upper first back section, which adjoins the neck region, and a lower second back section, wherein the second back section together with a neighboring portion of the first back section forms a lumbar region.
  • a second docking part is provided in the lumbar area.
  • the backrest frame first extends a fourth axis of rotation, which lies at the height level of the lumbar region and on which a first molded part is articulated with a first docking, wherein the first docking part is connected to the second docking part. Further, extending through the back frame a fifth axis of rotation, which lies at the height level of the neck region and on which a second mold part is articulated with a third docking part, wherein the third docking part is connected to the fourth docking part.
  • the backrest frame is rigid and consists of two side struts, each with an extension at the lower ends and connections between the side struts together.
  • the first connection is a cross member arranged near the extensions.
  • the second connection is a central transverse strut, through which the fourth axis of rotation with the first molded part hinged thereto extends.
  • the third connection is an upper transverse strut, through which the fifth axis of rotation extends with the second molded part hinged thereto.
  • the cross member consists of one of each of the associated side strut extending nozzle and a bridge piece, which is in two mutually facing sockets.
  • the middle transverse strut consists of one of the associated side strut extending spigot and an axle rod, which is in two mutually facing sockets and carries the first molded part.
  • the upper transverse strut consists of a respective extension extending from the associated side strut and an axle rod which is inserted in both mutually directed extensions and carries the second shaped part.
  • the first docking part is releasably connected to the second docking part and the third docking part with the fourth docking part by means of locking members.
  • the first docking part and the third docking part are designed as plug-in elements.
  • the second docking part and the fourth docking part are designed as sleeve pieces that extend from the back of the back plate.
  • a vertically displaceable lumbar support is arranged on its front side.
  • reinforcing ribs and a cell for receiving a control lever for the adjustment of the lumbar support are provided on the back of the back plate.
  • Vertical grooves for guiding the lumbar support are provided on the front side of the back plate, the vertical grooves following the course of the reinforcing ribs and extending over the lumbar region.
  • the mechanism consists of a fixed base, which is placed on the base frame, and a seat support connected to the base.
  • the connection between the base and seat support is first realized on the first fixed axis of rotation and on a second movable axis of rotation, which faces the seat trailing edge.
  • base and seat support are connected in a third movable axis of rotation, which faces the seat leading edge.
  • an extension of the back frame is attached to a respective frame connection, which is articulated on the one hand on the first axis of rotation and on the other hand on the second axis of rotation.
  • a spring assembly a bias that tends to keep the backrest in the upright null position.
  • the back plate is made of plastic.
  • the lumbar region of the backplate has outer flanks with in principle the hip region of the user comprehensive tendency.
  • the head extension has a curvature in the vertical cross-section with a tendency in principle to the user convex tendency.
  • the fifth axis of rotation lies in the direction of the front edge of the seat in front of the upper edge of the head attachment and in front of the fourth axis of rotation.
  • the back plate is surrounded by an envelope, preferably by a plastic foam surround.
  • the cover is covered by a cover, wherein the cover for the head attachment is preferably present as a separately exchangeable part.
  • a comfortable office swivel chair basically consists of the resting on the floor base 1, resting on it mechanism 2, on which the seat 3 is mounted, a backrest 7 and preferably adjustable armrests 4.
  • the base 1 typically has a first foot 10 - eg a 5th -Sternfuss - resting on floor elements 12, preferably rollers.
  • a vice versa 13 is inserted vertically in a standpipe 11 centrally in the foot 10 , which carries the mechanism 2 , which consists of a fixed base 20 and the pivotable seat support 21 .
  • the backrest 7 is divided into a backrest frame 5 and a backrest part 6, which is structured in the back part 60 and the head attachment 61 adjoining above.
  • the swivel chair can be pivoted about the vertical axis of rotation V generally by 360 ° and remains in the unloaded state in the upright zero position, which is enforced by the bias of the spring assembly 211 in the mechanism 2 and limited by a stop in the forward inclination.
  • the backrest frame 5 consists of two bow-shaped, multi-curved side struts 51, which are fastened at the bottom in each case on an angular piece formed as a frame connection 22 of the mechanism 2 .
  • the frame connections 22 are articulated on the one hand on a first axis of rotation D1, which is located on the fixed base 20 , and on the other hand on a second axis of rotation D2, on the rear area of the pivotable seat carrier 21 .
  • a fixed third axis of rotation D3 are hinged to the two tabs 23 , on the other hand run in a slotted guide 212 .
  • a receiving socket 25 is provided to attach the desired equipment of the chair with armrests 4, such.
  • a spring assembly 211 for generating the restoring force for the mechanism 2 is arranged.
  • the front part 218 and the rear part 219 are defined, which lie adjacent to the seat front edge 30 and seat trailing edge 31 .
  • both side struts 51 Adjacent to the frame terminals 22 , both side struts 51 are interconnected by a composite cross member 52 . At the lower end of each side strut 51 is provided with an extension 50 formed in principle as an angle. Each extension 50 has a first holding contour 501 and a second holding contour 502. Above the seat 3 is hinged between the two side struts 51 in a fourth axis of rotation D4, a first docking part 53 which is connected to a second docking part 67 , which opens into a cell 66 which lies on the back 608 of the back plate 62 of the backrest part 6 .
  • a lever 64 is used, by means of which a arranged on the front side 607 of the back plate 62 plate-shaped lumbar support 65 limited in height can be moved.
  • the fifth axis of rotation D5 extends with the third docking part 55 hinged therein , which is connected to a fourth docking part 610 extending from the back 608 of the lower portion of the head 61 of the back plate 62 .
  • D5 has the back plate 62 fasteners 620 to fix it to a removable cover 69 ' for the head extension 61 .
  • the backrest part 6 has the elastic back plate 62, which is surrounded by a cover 68 , which preferably consists of a foam of plastic. Outside is the backrest part 6 of a cover 69 - eg knitted fabric, leather or similar. - Surround so that the inner sheath 68 is not visible. In order to maintain the displaceability of the lumbar support 65 after foaming, this is previously covered with a release film 63 .
  • the seat 3 includes a seat plate 32 fastened to the seat support 21 , which has a padding 38 on top, which is provided with a cover 39 at least from the front edge 30 to the rear edge 31 .
  • An armrest 4 is composed of an angle bent support arm 40, a vertical branch of the support arm 40 enveloping sleeve piece 41 and the armrest 42 together.
  • the sleeve piece 41 can be moved telescopically on the vertical branch and lock, for example, in stages.
  • the free end of the Horizontalasts of the support arm 40 is provided as a slider 400 with a slot, so that after loosening the clamping screws 49 a width adjustment between the two armrests 4 on the chair is possible.
  • FIGS. 1E and 1F are identical to FIGS. 1E and 1F.
  • first and second docking 53.67 and from the third and fourth docking 55,610 pivot about the respective associated fourth axis of rotation D4 and fifth axis of rotation D5 by the denting deformation of the backrest part 6 with the internally arranged back plate 62 - due to the applied compressive force F - to each other.
  • FIGS. 2A and 2B are identical to FIGS. 2A and 2B.
  • a recess 28 for the forward inclination of the seat 3 is provided below the second axis of rotation D2 in the seat carrier 21 .
  • the adjusting lever 14 is used to actuate thecontractor 13, with the actuator 242 can be the bias of the spring assembly 211 set and the actuator 27 is actuated for the seat depth adjustment.
  • the receiving socket 25 have a first and a second segment 250,251 for gripping the sliding piece 400 to be inserted , which represents the end of the Horizontalasts 403 of the support arm 40 .
  • a slot 401 is present in the slider 400 .
  • the threaded shank of the clamping screw 49 engages in an internally threaded bore 253 in the second segment 251 , which has a grid 252 for better locking of the inserted slider 400 at the bottom.
  • the shaft 410 of the sleeve piece 41 of the armrest 4 is mounted. If you do not want to attach armrests 4 , the receiving socket 25 is closed with a cap 259 for aesthetic reasons.
  • an opening 200 is present in the base 20 .
  • a storage recess 210 is inserted in each case in the region of the second rotation axis D2 in the seat support 21 .
  • the side struts 51 have near the extensions 50 each have an inwardly facing stub 520 and on the fourth and fifth axis of rotation D4, D5 each have a further neck 540.560.
  • Both side struts 51 are joined to the back frame 5 on the cross member 52 of the middle cross member 54 and on the upper cross member 56 , wherein the projections 50 come to lie at the lower ends of the side struts 51 .
  • the back plate 62 is detachably docked on the back frame 5 .
  • On the front side 607 two vertically extending grooves 606 are present in the lumbar region 603 , in which the plate-shaped lumbar support 65 is guided vertically displaceable.
  • the side flanks 604 have a bending tendency for embracing the hip area of the user.
  • the back plate 62 is structured in the back part 60 and the head extension 61 adjoining above , in which the fourth docking part 610 is connected, which is connected to the third docking part 55 .
  • two fasteners 620 extend from the front side 607 for releasably attaching the cover 69 ' for the head extension 61.
  • the lower sockets 520 are connected to each other by means of a bridge piece 521 inserted therein and secured by screws 529 .
  • the central transverse strut 54 through which the fourth axis of rotation D4 extends, is composed of the connecting piece 540, an axle rod 541, the molded part 543 pushed onto it and the bearing shells 542 . Screws 549 serve for cohesion of the transverse strut 54. From the rotatably mounted first molded part 543 , the first docking part 53, which has locking members 531 extends.
  • the upper transverse strut 56 through which the fifth axis of rotation D5 extends, is composed of the connecting piece 560, an axle rod 561, the second molded part 563 pushed thereon and the bearing shells 562 . Screws 569 serve to hold the transverse strut 56 together. From the rotatably mounted second molded part 563 extends the third docking part 55, which has latching elements 551, 552 .
  • the third docking part 55 is in the fourth docking part 610 and is secured by the locking members 551,552 .
  • a cell 66 for receiving a control lever 64 is disposed in the lumbar region 603 , which engages with its driver 640 in a driver 650 of the lumbar support 65 and serves to their displacement.
  • a second docking part 67 rises with located therein detent member 671 for receiving the first docking part 53 with its catch members 531. Also, from the back side 608 610.
  • the fourth docking both sides of the cell 66 and the fourth docking part 610 extend on the back 608 reinforcing ribs 609 in which the vertical grooves 606 run.
  • the second docking part 67 and the fourth docking part 610 open as openings 605, 610 on the front side 607.
  • the back plate 62 is surrounded by a covering 68 , which preferably consists of foam-coated plastic. Before the foaming, the inserted lumbar support 65 is covered by a separating film 63 in order to obtain the displaceability of the lumbar support 65 .
  • a cover 69 is pulled, which is formed for example of knitted or leather.
  • the back panel 62 is divided into the back part 60 and the adjoining top head restraint 61.
  • a first portion 611 and above a second portion 612 wherein the first portion 611 with an adjoining portion of the second portion 612 of the neck 613 forms.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Claims (9)

  1. Chaise, avec:
    a) un pied (1) reposant sur le sol;
    b) un mécanisme (2) monté sur le pied (1);
    c) un siège (3) monté sur le mécanisme (2); et
    d) un dossier (7) fixé au mécanisme (2), qui:
    da) comprend un cadre de dossier (5), qui porte une partie de dossier déformable élastiquement (6) avec une plaque dorsale (62), dans laquelle la plaque dorsale (62) comporte une partie dorsale (60) à laquelle est relié un appui-tête (61); et
    db) est apte à pivoter autour d'un premier axe de rotation (D1) depuis une position neutre en principe dressée (B0 ) jusqu'à une position inclinée (B1 ) basculée vers l'arrière, dans laquelle les mouvements du siège (3) et du dossier (7) sont synchronisés l'un avec l'autre; dans laquelle:
    e) lors d'une déformation élastique de la partie dorsale (60) dans un espace intermédiaire libre vers le cadre de dossier (5), par l'action d'une force (F) en direction de la position inclinée (B1 ) avec une tendance en principe concave vers le dos de l'utilisateur, il est prévu des moyens (53,67,D4;-55,610,D5) pour un redressement opposé de la zone des épaules comme zone de transition de la partie dorsale (60) à l'appui-tête (61) ainsi que de l'appui-tête (61); et
    f) le cadre de dossier (5) est rigide et comporte deux entretoises latérales (51), caractérisée en ce que
    g) il est prévu, comme liaisons entre les entretoises latérales (51):
    ga) une entretoise transversale médiane (54), à travers laquelle s'étend un quatrième axe de rotation (D4) avec une première pièce moulée (543) articulée sur celui-ci; et
    gb) une entretoise transversale supérieure (56), à travers laquelle s'étend un cinquième axe de rotation (D5) avec une deuxième pièce moulée (563) articulée sur celui-ci.
  2. Chaise selon la revendication 1, caractérisée en ce que
    a) une traverse (52) est disposée entre les entretoises latérales (51) à titre de liaison supplémentaire;
    b) la traverse (52) se compose d'un embout (520) s'étendant respectivement à partir de l'entretoise latérale correspondante (51) et d'une pièce de pont (521), qui s'engage dans les deux embouts (520) orientés l'un vers l'autre;
    c) l'entretoise transversale médiane (54) se compose d'un embout (540) s'étendant respectivement à partir de l'entretoise latérale correspondante (51) et d'une barre axiale (541), qui s'engage dans les deux embouts (540) orientés l'un vers l'autre et porte la première pièce moulée (543); et
    d) l'entretoise transversale supérieure (56) se compose d'un prolongement (560) s'étendant respectivement à partir de l'entretoise latérale correspondante (51) et d'une barre axiale (561), qui s'engage dans les deux prolongements (560) orientés l'un vers l'autre et porte la deuxième pièce moulée (563).
  3. Chaise selon au moins une des revendications 1 et 2, caractérisée en ce que
    a) le quatrième axe de rotation (D4) est situé au niveau d'une zone lombaire (603) et la première pièce moulée (543) est articulée sur le quatrième axe de rotation (D4) avec une première pièce d'attache (53), dans laquelle la première pièce d'attache (53) est assemblée à une deuxième pièce d'attache (67), et
    b) le cinquième axe de rotation (D5) est situé au niveau d'une zone de nuque (613) et la deuxième pièce moulée (563) est articulée sur le cinquième axe de rotation (D5) au moyen d'une troisième pièce d'attache (55), dans laquelle la troisième pièce d'attache (55) est assemblée à une quatrième pièce d'attache (610).
  4. Chaise selon au moins une des revendications 1 à 3, caractérisée en ce que
    a) la première pièce d'attache (53) et la deuxième pièce d'attache (67) ainsi que la troisième pièce d'attache (55) et la quatrième pièce d'attache (610) sont assemblées l'une à l'autre de façon séparable au moyen d'organes d'encliquetage (531,671;551,552);
    b) la première pièce d'attache (53) et la troisième pièce d'attache (55) se présentent sous la forme d'éléments d'enfichage; et
    c) la deuxième pièce d'attache (67) et la quatrième pièce d'attache (610) se présentent sous la forme de douilles, qui s'étendent à partir d'une face arrière (608) de la plaque dorsale (62).
  5. Chaise selon au moins une des revendications 1 à 4, caractérisée en ce que
    a) la partie dorsale (60) et l'appui-tête (61) de la plaque dorsale (62) se prolongent l'un dans l'autre en une seule pièce;
    b) l'appui-tête (61) est divisé en une première partie d'appui-tête inférieure (611), qui se raccorde à la partie dorsale (60), et une deuxième partie d'appui-tête supérieure (612), dans laquelle la première partie d'appui-tête (611) forme la zone de nuque (613) en association avec une partie voisine de la deuxième partie d'appui-tête (612);
    c) la quatrième pièce d'attache (610) est prévue dans la zone de nuque (613);
    d) la partie dorsale (60) est divisée en une première partie dorsale supérieure (601), qui se raccorde à la zone de nuque (613), et une deuxième partie dorsale inférieure (602), dans laquelle la deuxième partie dorsale (602) forme la zone lombaire (603) en association avec une partie voisine de la première partie dorsale (601); et
    e) la deuxième pièce d'attache (67) est prévue dans la zone lombaire (603).
  6. Chaise selon au moins une des revendications 1 à 5, caractérisée en ce que
    a) un soutien lombaire (65) réglable verticalement est disposé dans la région inférieure de la plaque dorsale (62), sur sa face avant (607);
    b) il est prévu, sur la face arrière (608) de la plaque dorsale (62), des nervures de renforcement (609) et une cellule (66) destinée à recevoir un levier de réglage (64) pour le réglage du soutien lombaire (65); et
    c) il se trouve, sur la face avant (607) de la plaque dorsale (62), des rainures verticales (606) pour le guidage du soutien lombaire (65), dans laquelle les rainures verticales (606) suivent le tracé des nervures de renforcement (609) et s'étendent sur la zone lombaire (603).
  7. Chaise selon au moins une des revendications 1 à 6, caractérisée en ce que
    a) le mécanisme (2) se compose d'une base fixe (20), qui est montée sur le pied (1), et d'un support de siège (21), assemblé à la base (20);
    b) le support de siège (21) est assemblé à la base (20) sur
    ba) le premier axe de rotation fixe (D1);
    bb) un deuxième axe de rotation mobile (D2), qui est tourné vers le bord arrière du siège (31);
    bc) un troisième axe de rotation mobile (D3), qui est tourné vers le bord avant du siège (30);
    c) les deux entretoises latérales (51) présentent chacune un prolongement (50) à leurs extrémités inférieures, à proximité de la traverse (52);
    d) un prolongement (50) du cadre de dossier (5) est chaque fois fixé à un raccord de cadre respectif (22), qui est articulé d'une part sur le premier axe de rotation (D1) et d'autre part sur le deuxième axe de rotation (D2); et
    e) dans le mécanisme (2), un groupe à ressort (211) génère une précontrainte, qui vise à maintenir le dossier (7) dans la position neutre dressée (B0 ).
  8. Chaise selon au moins une des revendications 1 à 7, caractérisée en ce que
    a) la plaque dorsale (62) se compose de matière plastique;
    b) la zone lombaire (603) de la plaque dorsale (62) comporte des flancs extérieurs (604), tendant en principe à envelopper l'utilisateur;
    c) l'appui-tête (61) présente, en coupe transversale verticale, une courbure en principe convexe vers l'utilisateur; et
    d) le cinquième axe de rotation (D5) est situé, dans la direction du bord avant du siège (30), devant le bord supérieur de l'appui-tête (61) et devant le quatrième axe de rotation (D4).
  9. Chaise selon au moins une des revendications 1 à 8, caractérisée en ce que
    a) la plaque dorsale (62) est entourée d'une enveloppe (68), de préférence d'un rembourrage de mousse synthétique; et
    b) le rembourrage (68) est recouvert d'une housse (69,69'); dans laquelle
    c) la housse (69') pour l'appui-tête (61) se présente de préférence comme une pièce remplaçable séparément.
EP05786593A 2005-10-03 2005-10-03 Siege Active EP1931232B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2005/000572 WO2007038879A1 (fr) 2005-10-03 2005-10-03 Siege

Publications (2)

Publication Number Publication Date
EP1931232A1 EP1931232A1 (fr) 2008-06-18
EP1931232B1 true EP1931232B1 (fr) 2010-09-01

Family

ID=36354089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05786593A Active EP1931232B1 (fr) 2005-10-03 2005-10-03 Siege

Country Status (7)

Country Link
US (1) US7568765B2 (fr)
EP (1) EP1931232B1 (fr)
JP (1) JP2009509592A (fr)
CN (1) CN101277632B (fr)
AT (1) ATE479361T1 (fr)
DE (1) DE502005010192D1 (fr)
WO (1) WO2007038879A1 (fr)

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US7775601B2 (en) * 2008-03-17 2010-08-17 Yao-Chuan Wu Back structure for a chair
US20110198907A1 (en) * 2008-10-16 2011-08-18 Hiroshi Masunaga Chair
WO2010045745A1 (fr) 2008-10-21 2010-04-29 Vitra Patente Ag Dossier pour une chaise
US8033612B2 (en) * 2008-12-24 2011-10-11 Mity-Lite, Inc. Comfortable mesh folding chair
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US7568765B2 (en) 2009-08-04
US20080231095A1 (en) 2008-09-25
DE502005010192D1 (de) 2010-10-14
JP2009509592A (ja) 2009-03-12
WO2007038879A1 (fr) 2007-04-12
CN101277632A (zh) 2008-10-01
EP1931232A1 (fr) 2008-06-18
ATE479361T1 (de) 2010-09-15
CN101277632B (zh) 2010-12-01

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