Exercise device with braking system

  • US 9,623,281 B2
  • Filed: 11/03/2014
  • Issued: 04/18/2017
  • Est. Priority Date: 02/02/2000
  • Status: Expired due to Fees
First Claim
Patent Images

1. A treadmill, comprising:

  • an inclining and declining treadbase with an endless belt movably mounted to a first roller and a second roller;

    a motor adapted to turn the endless belt;

    a flywheel coupled to the motor, a rotational speed of flywheel being directly related to a speed of the endless belt;

    a current monitor adapted to monitor a level of current, anywhere along a range of levels, drawn to operate the motor; and

    a magnetic braking system arranged to prevent the endless belt from rotating at a speed that is faster than a speed selected at a console by a user, the magnetic braking system adapted to increase a magnetic resistance force on the motor in response at least in part to the current monitor detecting a decreased level of current being drawn by the motor, the magnetic braking system adapted to decrease a magnetic resistance force on the motor in response at least in part to the current monitor detecting an increased level of current being drawn by the motor.

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