Exercise devices – Involving user translation or physical simulation thereof – Treadmill for foot travel
Patent
1991-11-08
1994-03-01
Apley, Richard J.
Exercise devices
Involving user translation or physical simulation thereof
Treadmill for foot travel
482 7, 482901, 482903, A63B 2202, A63B 2400
Patent
active
052902056
ABSTRACT:
A control system controls a D.C. speed-change motor to change the transmission configurations on a treadmill transmission powered by an A.C. drive motor. The control system may be either microprocessor based or a system of discrete logical pieces. The control system responds to both the current speed of the treadmill belt and the electrical current drawn by the speed-change motor. The control system uses this information to modulate the duty cycle of voltage pulses sent to the D.C. speed-change motor to power the speed-change motor in response to a determination by the control system that the speed-change motor needs to rotate faster or slower to produce a constant rate of speed change for the treadmill belt. The control system also includes a rapid deceleration system. In response to the user's direction or in response to the condition of the treadmill, the control system sends a high voltage to the D.C. speed change motor to cause it to rapidly change the configuration of the transmission to decelerate the belt.
REFERENCES:
patent: 1607002 (1926-11-01), Keller
patent: 3689066 (1972-09-01), Hagen
patent: 3737163 (1973-06-01), Sumrall
patent: 3919891 (1975-11-01), Stuhlmuller
patent: 3954018 (1976-05-01), O'Berto
patent: 3984744 (1976-10-01), Moody
patent: 4019106 (1977-04-01), Van Doren
patent: 4364556 (1982-12-01), Otte
patent: 4525658 (1985-06-01), Yanagida
patent: 4628910 (1986-12-01), Krukowski
patent: 4635927 (1987-01-01), Shu
patent: 4749181 (1988-06-01), Pittaway et al.
patent: 4792134 (1988-12-01), Chen
patent: 4842266 (1989-06-01), Sweeney, Sr. et al.
patent: 4928956 (1990-05-01), Chen
patent: 4944713 (1990-07-01), Salerno
patent: 4964841 (1990-10-01), Takayama et al.
patent: 5062626 (1991-11-01), Dalebout et al.
Densmore Bruce D.
Fissel Gregory W.
Hass Lester A.
Rotunda John T.
Apley Richard J.
Beck Andrew J.
Kinghorn Curtis D.
Leubecker John P.
Quinton Instrument Company
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