Chair

Details Chair Chair

2005-10-03

2009-08-04

McPartlin, Sarah (Department: 3636)

Chairs and seats

Movable back

Tiltable

C297S396000, C297S440200, C297S452130

Reexamination Certificate

active

07568765

ABSTRACT:
The chair has a sub frame (1) set on the floor, a mechanism (2) set on the sub frame, a seat (3) set on the mechanism (2) and a backrest (7) attached to the mechanism (2). The backrest (7) exhibits a backrest frame (5), which supports an elastically deformable backrest part (6) with a back panel (62). The back panel (62) has a back part (60), to which a head restraint (61) is attached. The backrest (7) is capable of pivoting about a first pivot shaft (D1) from an essentially upright, neutral position to a reclined position displaced towards the rear. The movements of the seat (3) and the backrest (7) are synchronized with one another. In the event of the elastic deformation of the back part (60) into a free space for the backrest frame (5), by the application of a force in the direction of the reclined position having an essentially concave tendency to the back of the user, means (53,67,D4;55,610,D5) are provided for an opposing raising of the shoulder area, as a transitional zone of the back part (60) for the head restraint (61), and of the head restraint (61).

REFERENCES:
patent: 6257665 (2001-07-01), Nagamitsu et al.
patent: 6709060 (2004-03-01), Su
patent: 7014269 (2006-03-01), Coffield et al.
patent: 7347496 (2008-03-01), Wang
patent: 2007/0057556 (2007-03-01), Kang
patent: 10 2004 012850 (2005-05-01), None
patent: 0 970 639 (2000-01-01), None
patent: 1 039 816 (2000-10-01), None
Written Opinion issued by the ISA in connection with International Patent Appln. No. PCT/CH2005/000572.
International Search Report issued by the ISA in connection with International Patent Appln. No. PCT/CH2005/000572.

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