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Trigger system for a vehicular passenger restraint system

  • US 4,700,973 A
  • Filed: 06/12/1986
  • Issued: 10/20/1987
  • Est. Priority Date: 08/04/1983
  • Status: Expired due to Fees
First Claim
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1. In a vehicular passenger restraint systema trigger system comprisinga deceleration sensing means including a base structure (11, 30) and a deceleration sensing element (12, 12'"'"') secured to the base structure andan evaluation circuit structure (16, 17) including a support carrier (16) and an integrated circuit (17) on the support carrier;

  • and housing means retaining the deceleraton sensing means and the evaluation circuit structure, including a metal plate (10) forming a single support plate, and a hat-shaped or pot-shaped housing cap (20), the metal plate forming a closure plate for the housing cap and defining a single sealed chamber between the housing cap and the metal plate;

    wherein the base structure (11,

         30) of the deceleration sensing means is secured to the single metal support plate (10) at a first side of the metal plate;

    a bonding plate (14) is provided electrically connected with a terminal of the deceleration sensing means and providing an electrical terminal connection therefor;

    and whereinthe support carrier (16) with the integrated circuit (17) thereon lies directly against said first side of the metal support plate and is secured thereto;

    wherein the single metal support plate and the housing cap are secured and selaed together to form a sealed air-tight structure defining said chamber therein, within which deceleration sensing means and the evaluation circuit are located ; and

    a high viscosity damping material is provided retained in the chamber.

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