Motorized treadmill speed changer

Details Motorized treadmill speed changer Motorized treadmill speed changer

1989-08-22

1990-04-17

Apley, Richard J.

Undertaking

A63B 2306

Patent

active

049173758

ABSTRACT:
An improved motorized treadmill speed changer, especially one which changes speed by dry friction, characterized by comprising an adjusting unit consisting of a handle bar, a pinion, a rack, a motor base slide and a U support, and a driving unit consisting of a motor, a friction cone and a friction wheel, and being constructed in such way that the speed of the revolving belt of the motorized treadmill can be changed steplessly and controlled by turning the handle bar.

REFERENCES:
patent: 3737163 (1973-06-01), Sumrall
patent: 4645197 (1987-02-01), McFee
patent: 4645204 (1987-02-01), Berger
patent: 4685666 (1987-08-01), Decloux
patent: 4712791 (1987-12-01), Edwards

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