Seat belt tensioning device

Details Seat belt tensioning device Seat belt tensioning device

1979-05-08

1981-03-31

Love, John J.

Land vehicles

Wheeled

Attachment

188 1C, 280805, 297472, 297480, B60R 2110

Patent

active

042589347

ABSTRACT:
A seat belt tensioning device which restrains the passenger and absorbs his kinetic energy at an urgent time such as upon an impact of a vehicle. A piston is slidably disposed within a cylinder so as to move in only one direction. Return stop means prevents the piston from moving in an opposite direction. A metallic deformable member is disposed within a cavity of the piston, one end of the member being fixed to the piston, the other end thereof being connected to a seat belt. Piston operating means moves the piston within the cylinder at an urgent time and tensions the seat belt to restrain the passenger. When the tension force applied to the seat belt exceeds the deforming stress value of the metallic deformable member, the member is plastically deformed and the seat belt is drawn out of the cylinder to absorb the kinetic energy of the passenger.

REFERENCES:
patent: 3547468 (1970-12-01), Giuffrida
patent: 3561690 (1971-02-01), Muskat
patent: 3680913 (1972-08-01), Seybold
patent: 3741494 (1973-06-01), Fiala
patent: 3765700 (1973-10-01), Littmann
patent: 3937487 (1976-02-01), Pech
patent: 3999780 (1976-12-01), Matsuoka et al.

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