Seat back frame for a vehicle

Details Seat back frame for a vehicle Seat back frame for a vehicle

2007-03-20

2010-06-08

White, Rodney B (Department: 3636)

Chairs and seats

Bottom or back

Framework

C297S216100, C297S216130, C297S216140

Reexamination Certificate

active

07731292

ABSTRACT:
At a side portion22of a seat back frame, not only does a rear first extending portion52bend and extend from a frame side plate portion30toward a seat back inner side at an obtuse angle, but also, in a vicinity of a central portion of a rear flange portion50, a rear second extending portion54bends and extends from the rear first extending portion52further toward the seat back inner side. Therefore, even if a relatively large load toward a rear of a vehicle acts on the seat back frame and compressive stress is generated at an intermediate portion of the rear flange portion50in a heightwise direction of a seat back, it is difficult for cross-sectional collapsing to arise, and the load can be effectively supported at the frame side plate portion30. There can be provided a seat back frame for a vehicle which can suppress an amount of bending deformation at the time of a rear collision, without leading to an increase in weight.

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