Exercise apparatus having high durability mechanism for user ene

Details Exercise apparatus having high durability mechanism for user ene Exercise apparatus having high durability mechanism for user ene

1989-07-31

1990-08-21

Crow, Stephen R.

Undertaking

272 69, A63B 2300

Patent

active

049499939

ABSTRACT:
An exercising apparatus is disclosed which simulates stair-climbing. In order to reduce breakage problems in the force-transmitting structure between each pedal and a one-way rotating drive shaft, a pair of pulley wheels, each associated with a pair of cables, are used. Each pulley wheel rotates the drive shaft, and is pulled in one direction of rotation by a pedal-connected cable, and in the other direction of rotation by a cable connected to a return spring. Each cable on each pulley wheel reels into and out of helical grooves formed in the periphery of the pulley wheel.

REFERENCES:
patent: 3970302 (1976-07-01), McFee
patent: 4708338 (1987-11-01), Potts
patent: 4720093 (1988-01-01), Del Mar

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