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Rotational speed detector

  • US 5,018,384 A
  • Filed: 07/19/1990
  • Issued: 05/28/1991
  • Est. Priority Date: 07/21/1989
  • Status: Expired due to Term
First Claim
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1. A rotational speed detector which is provided on a first member and a second member, which rotate relative to each other, to detect said relative rotation, said detector comprising:

  • a sensor rotor which is secured to said first member;

    a rotational speed sensor assembly which is slidable relative to said first member but unable to rotate relative to said second member; and

    a biasing means which biases said rotational speed sensor assembly toward said sensor rotor so that said rotational speed sensor assembly is in contact with either said sensor rotor or said first member, thereby maintaining the distance between said rotational speed sensor assembly and said sensor rotor at a constant level.

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