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Acceleration detecting device

  • US 5,920,045 A
  • Filed: 06/28/1995
  • Issued: 07/06/1999
  • Est. Priority Date: 06/29/1994
  • Status: Expired due to Term
First Claim
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1. An acceleration detecting device comprising:

  • a weight to rotate in correspondence with acceleration;

    a shaft which is fixed to said weight and becomes a rotational center when said weight rotates;

    a rotor which includes a cam portion and which rotates integrally with said weight;

    a pair of plate springs disposed with a predetermined gap interposed therebetween, said pair of plate springs including a first plate spring and a second plate spring, said first plate spring and said second plate spring having respective tip portions, where said tip portion of said first plate spring contacts said cam portion of said rotor for urging said rotor in a direction opposite to a direction of rotation of said rotor, said cam portion being for moving said first plate spring towards said second plate spring when said rotor rotates to make said first plate spring contact said second plate spring; and

    first and second connection terminals to which said first and second plate springs are respectively connected is, said first and second connection terminals being for generating a first electrical signal indicative of contact of said first plate spring with said second plate spring.

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