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D.C. treadmill speed change motor controller system

  • US 5,290,205 A
  • Filed: 11/08/1991
  • Issued: 03/01/1994
  • Est. Priority Date: 11/08/1991
  • Status: Expired due to Fees
First Claim
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1. A treadmill comprising:

  • a) an A.C. drive motor having a rotating member;

    b) a treadmill belt;

    c) means for connecting said rotating member to said treadmill belt so that rotation of said rotating member causes said treadmill belt to move, said means for connecting including means for varying the speed of said treadmill belt when said rotating member is rotating at a constant speed;

    d) a D.C. speed change motor connected to said means for varying so that said D.C. speed change motor causes said means for varying to vary the speed of said treadmill belt; and

    ,e) means for controlling said D.C. speed change motor including means for sending a varying voltage signal to said D.C. speed change motor for varying the rate of rotation of said D.C. speed change motor so that said D.C. speed change motor operates in response to said means for sending to cause a constant rate of change of speed of said treadmill belt.

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