Adjustable speed control arrangement for motorized exercise trea

Details Adjustable speed control arrangement for motorized exercise trea Adjustable speed control arrangement for motorized exercise trea

1985-04-15

1987-01-13

Apley, Richard J.

Undertaking

272DIG4, A63B 2306

Patent

active

046359281

ABSTRACT:
A motorized treadmill exercising device comprising a generally planar frame equipped with a planar slider bed and head and tail rollers journalled respectively at the head and tail ends of the frame, over which an endless plastic belt is trained. The treadmill at its head end is equipped with a cross member that pivotally mounts a motor assembly including an electric drive motor and shaft driven by same that is keyed to a variable speed pulley aligned with an ordinary fixed speed pulley keyed to the treadmill belt head roller, and between which a drive pulley belt of the V type is tensioned by the biasing action of the variable speed pulley that subjects the motor assembly to uniform spring biasing action about the pivotal mounting of the motor assembly for tensioning the pulley belt into drive transmitting relation with the respective pulleys, and with the treadmill apparatus including hand hold railing on either side of same between which the treadmill user exercises, with one of the hand rails having mounted on same and connected with the treadmill drive motor assembly for pivoting same, a control mechanism that is adapted for hand actuation by the treadmill user when using the treadmill, for changing of the tensioning of the pulley belt, and the adjustment of the variable speed pulley, for convenient infinitely variable speed changing of this treadmill belt between its maximum and minimum speeds provided by the treadmill apparatus involved and protection of the drive equipment against damage.

REFERENCES:
patent: 1449828 (1923-05-01), Maimin et al.
patent: 2669404 (1954-02-01), Howard
patent: 2963966 (1960-12-01), Buttner
patent: 3064486 (1962-11-01), Aplin
patent: 4344616 (1982-08-01), Ogden
patent: 4374587 (1983-02-01), Ogden
patent: 4381174 (1983-04-01), Obler
patent: 4445683 (1984-05-01), Ogden

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