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PENDULUM-TYPE INERTIA SENSOR SWITCH

  • US 3,835,273 A
  • Filed: 02/02/1973
  • Issued: 09/10/1974
  • Est. Priority Date: 02/02/1973
  • Status: Expired due to Term
First Claim
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1. A multi-directional crash sensor for triggering an air bag safety device on a vehicle, comprising:

  • a. a housing adapted for attachment to a vehicle, said housing defining an enclosed chamber;

    b. an inertial pendulum member having predetermined length, mass, and mass distribution;

    c. means pivotally suspending said pendulum member within said chamber for swinging in any direction;

    d. first electrical contact means mounted on said pendulum member;

    e. second electrical contact means mounted within said chamber around said pendulum member, and aligned for contact by said first electrical contact means upon swinging of said pendulum member;

    f. non-conductive deformable member mounted within said chamber covering said second electrical contact, said deformable member having a predetermined resistance to penetration, in relation to said predetermined length, mass, and mass distribution of said pendulum member, so that said first electrical contact means is driven into contact with said electrical contact means only when said crash sensor is subjected to an acceleration exceeding a predetermined value.

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