Deformation-resistant frame for seats of motor vehicles

Details Deformation-resistant frame for seats of motor vehicles Deformation-resistant frame for seats of motor vehicles

1987-07-17

1989-02-14

McCall, James T.

Chairs and seats

Crash seat

Bottom and back movable as unit in response to force

297483, B60R 2100

Patent

active

048042269

ABSTRACT:
The frame of the seat in a motor vehicle has a base for the cushion which carries the weight of the occupant and a back rest which carries the cushion for the back of the occupant. The back rest has two upwardly extending parallel frame members and a connector between the upper ends of the frame members. The upper end of one frame member carries a takeup reel for the safety belt whose latch plate can be inserted into a buckle adjacent the lower end of the other frame member. When the belt is applied and is tensioned, such as in the event of an accident, it applies to the one frame member a force acting diagonally of the back rest and tending to bend the one frame member forwardly and toward the other side of the seat. The cross-sectional outline of the one frame member and the orientation of such cross-sectional outline are selected in such a way that the one frame member offers maximum resistance to deformation by the belt in the direction in which the belt acts thereon in the event of an accident. This renders it possible to reduce the wall thickness of the one frame member and to make such frame member of simple C-shaped, U-shaped or Z-shaped profiled stock.

REFERENCES:
patent: 4040660 (1977-08-01), Barecki
patent: 4076306 (1978-02-01), Satzinger
patent: 4192545 (1980-03-01), Higochi et al.
patent: 4431233 (1984-02-01), Ernst
patent: 4544204 (1985-10-01), Schmale

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