Land vehicles – Wheeled – Attachment
Patent
1991-05-06
1992-08-18
Marmor, Charles A.
Land vehicles
Wheeled
Attachment
2421072, B60R 2200
Patent
active
051392828
ABSTRACT:
A seat belt system conventionally includes a shoulder belt deflected across the occupant torso by a guide loop and wound upon a reel having a spring winding the belt taut about the occupant torso so that forward movement of the occupant in the seat is enabled by unwinding of the belt from the reel against the bias of the winding spring. An auxiliary spring is interposed in the shoulder belt system between the retractor and the occupant and is effective to permit limited contraction and extension of the seat belt independent of the winding and unwinding of the belt by the retractor. The auxiliary spring has a normal position adapted to retain the belt contracted when the occupant is seated stationary in the seat, and enables limited extension of the belt to accommodate breathing and limited forward movement of the occupant during normal wearing of the belt without unwinding the belt from the reel. The auxiliary spring is preferably associated with the guide loop and permits about 20 millimeters of extension from the contracted position at a spring rate of 60 newtons per meter before the belt begins to unwind from the retractor.
REFERENCES:
patent: 3241882 (1966-03-01), Fredericks
patent: 3277855 (1966-10-01), Roing
patent: 3279851 (1966-10-01), Hinchliff
patent: 3415536 (1968-12-01), Weman
patent: 3429614 (1969-02-01), Huggins
patent: 3462192 (1969-08-01), Fredericks
patent: 3807798 (1974-04-01), Mattson
patent: 4033594 (1977-07-01), Lindblad
patent: 4118068 (1978-10-01), Fohl
patent: 4225185 (1980-09-01), Krzok
patent: 4288097 (1981-09-01), Ueda
patent: 4341359 (1982-07-01), Jahn
patent: 4402528 (1983-09-01), Fohl
patent: 4480853 (1984-11-01), Ando et al.
patent: 4484766 (1984-11-01), Buchmeier
patent: 4607864 (1986-08-01), Kouketsu et al.
patent: 5054815 (1991-10-01), Gavagan
Dickson Paul
General Motors Corporation
Leahy Charles E.
Marmor Charles A.
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