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Magnetic clutch

  • US 5,105,928 A
  • Filed: 09/24/1990
  • Issued: 04/21/1992
  • Est. Priority Date: 09/26/1989
  • Status: Expired due to Fees
First Claim
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1. A magnetic clutch comprising:

  • a rotary shaft;

    a driving-side rotating member having one of a magnetic substance member and a hysteresis member thereon, and so supported on said rotary shaft as to be rotatable in asynchronization with the rotary shaft;

    a driven-side rotating member having the other of the magnetic substance member and the hysteresis member thereon, and fixed to said rotary shaft so as to rotate in synchronization with the shaft, the driven-side and driving-side rotating members being spaced apart on said shaft with said magnetic substance member and said hysteresis member confronting one another; and

    regulating means, including a viscous medium, provided on said shaft for producing sliding friction based on the viscosity of said medium as said shaft rotates and for transmitting a force corresponding to the sliding friction to said shaft to thereby regulate the rotation of the shaft.

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