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1. WO2006096369 - SEATING WITH SHAPE-CHANGING BACK SUPPORT FRAME

Publication Number WO/2006/096369
Publication Date 14.09.2006
International Application No. PCT/US2006/006887
International Filing Date 28.02.2006
IPC
B60N 2/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
2Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
CPC
A47C 7/405
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS
7Parts, details, or accessories of chairs or stools
36Support for the head or the back
40for the back
405with double backrests
A47C 7/44
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS
7Parts, details, or accessories of chairs or stools
36Support for the head or the back
40for the back
44with elastically-mounted ; back-rest or backrest-seat unit in the base; frame
A47C 7/443
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS
7Parts, details, or accessories of chairs or stools
36Support for the head or the back
40for the back
44with elastically-mounted ; back-rest or backrest-seat unit in the base; frame
443with coil springs
A47C 7/444
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS
7Parts, details, or accessories of chairs or stools
36Support for the head or the back
40for the back
44with elastically-mounted ; back-rest or backrest-seat unit in the base; frame
443with coil springs
444of torsion type
A47C 7/445
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS
7Parts, details, or accessories of chairs or stools
36Support for the head or the back
40for the back
44with elastically-mounted ; back-rest or backrest-seat unit in the base; frame
445with bar or leaf springs
A47C 7/46
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS
7Parts, details, or accessories of chairs or stools
36Support for the head or the back
40for the back
46with special, e.g. adjustable ; , lumbar region support; profile; "Ackerblom" profile chairs
Applicants
  • STEELCASE DEVELOPMENT CORPORATION [US]/[US] (AllExceptUS)
  • HEIDMANN, Kurt R. [US]/[US] (UsOnly)
  • PETERSON, Gordon J. [US]/[US] (UsOnly)
Inventors
  • HEIDMANN, Kurt R.
  • PETERSON, Gordon J.
Agents
  • GIRDWOOD, Daniel L.
Priority Data
11/363,06727.02.2006US
11/363,06927.02.2006US
60/659,68808.03.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SEATING WITH SHAPE-CHANGING BACK SUPPORT FRAME
(FR) SIEGE A CHASSIS DE SUPPORT DE DOS CHANGEANT DE FORME
Abstract
(EN)
A back includes an articulating back frame and a back support. The back frame has a lower segment pivoted to a chair control, an upper segment for thoracic support, and links forming a four-bar linkage with the upper and lower segments, with a joint being formed at the lumbar region. The back support is stretchable in limited directions to accommodate shape change in the articulating back frame but to provide adequate support to a seated user. Upon receiving a rearward pressure on the lumbar joint, the back frame itself changes shape. The pivot locations in the four bar linkage create a mechanism the simultaneously controls rotational and translational movement of the upper segment during flexure of the lumbar. The back frame is close to the back support to provide significant design flexibility, but permit substantial lumbar flexure. Various back supports are contemplated that accommodate articulation of the back frame.
(FR)
La présente invention a trait à un dossier comportant un châssis de dossier articulé et un support de dos. Le châssis de dossier présente un segment inférieur fixé en pivotement à un dispositif de commande de chaise, un segment supérieur pour le support du buste, et des liaisons formant une liaison à quatre barres avec les segments supérieur et inférieur, avec une articulation formée au niveau de la région lombaire. Le support de dos est extensible dans des directions limitées pour s'adapter à un changement de forme dans le châssis de dossier articulé pour assurer un support adéquat à un utilisateur qui y est assis. Lors de la réception d'une pression vers l'arrière sur l'articulation lombaire, le châssis de dossier lui-même change de forme. Les emplacements de pivot dans la liaison à quatre barres créent un mécanisme qui assure la commande simultanée de mouvement de rotation et de translation du segment supérieur lors de la flexion lombaire. Le châssis de dossier est proche du support de dos pour assurer une flexibilité de construction importante, tout en permettant une flexion lombaire substantielle. L'invention propose divers supports de dos qui s'adaptent à l'articulation du châssis de dossier.
Latest bibliographic data on file with the International Bureau