Seat backs for vehicular seats

Details Seat backs for vehicular seats Seat backs for vehicular seats

2007-10-19

2009-08-18

Cranmer, Laurie K (Department: 3636)

Chairs and seats

Bottom or back with means to alter contour

Providing support for lower back region

C297S284200, C297S284800

Reexamination Certificate

active

07575278

ABSTRACT:
A seat back for a vehicular seat has a plate member for supporting a back of a pad and an elastic support mechanism for holding the plate member for moving the plate member in a forward and backward direction. The plate member includes a thoracic vertebra avoiding portion having at least one of a hole and a recessed portion recessed in a direction away from the thoracic vertebrae of a user, so as to avoid a pushing force to the thoracic vertebrae. In addition the thoracic vertebra avoiding portion is vertically elongated at a substantially widthwise center position of the plate member and has a width of 40 to 100 mm.

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English language Abstract of JP 2003-341401.
English language Abstract of JP 2006-20733.
U.S. Appl. No. 11/876,919 to Wissner et al., filed Oct. 23, 2007.

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