Vehicle impact sensor arrangement

Land vehicles – Wheeled – Attachment

Patent

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Details

180274, 2807302, B60R 2132

Patent

active

054545900

ABSTRACT:
A sensor arrangement for sensing an impact on a motor vehicle which has an outer skin and for activating a safety device within the vehicle. A sensor is located between the outer skin of the vehicle and an inner part of the vehicle which is relatively fixed in position, and is adapted to initiate activation of the safety device only when the outer skin of the vehicle moves at a speed greater than a predetermined speed relative to said fixed part of the vehicle. The sensor has a first part in the form of a housing containing a pyrotechnic material, and a second part in the form of a stab. One of the parts is supported by an inner part of the vehicle which is relatively fixed in position, while the other of the parts is adapted to be moved in response to movement of the outer skin of the vehicle during an impact. In an impact situation the second part in the form of a stab is moved into an engagement with the first part in the form of a housing containing a pyrotechnic material with a speed related to the speed of movement of the outer skin, and the pyrotechnic material ignites when the speed of movement of the vehicle skin exceeds a predetermined level.

REFERENCES:
patent: 3793498 (1974-02-01), Matsui et al.
patent: 3883156 (1975-05-01), Frazier
patent: 4014565 (1977-03-01), Fieni
patent: 4172603 (1979-10-01), St. Clair et al.
patent: 4706990 (1987-11-01), Stevens
patent: 4833994 (1989-05-01), Strobush
patent: 4966388 (1990-10-01), Warner et al.

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