Driving device of a leg exercise machine

Details Driving device of a leg exercise machine Driving device of a leg exercise machine

2000-08-15

2001-10-09

Crow, Stephen R. (Department: 3764)

Exercise devices

Involving user translation or physical simulation thereof

Stair climbing

C482S057000

Reexamination Certificate

active

06299566

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to a leg exercise machine, and more particularly to a driving device of the leg exercise machine.
2. Description of Related Art
The conventional leg exercise machines are not provided with a driving device to facilitate the using of the leg exercise machines by the physically weak persons.
BRIEF SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a leg exercise machine with a driving device which is mounted in the front end of a frame of the leg exercise machine and is formed of a motor, a gear, a sprocket wheel, two locating seats, two pedals, and two switches. The gear is mounted on a spindle of the motor and is linked with the sprocket wheel by a chain on which the two locating seats are movably disposed. As one of the switches is touched by the pedals, the rotational direction of the motor is caused to change so as to bring about the reciprocating motion of the pedals.
The features, functions, and advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of the present invention with reference to the accompanying drawings.


REFERENCES:
patent: 3712613 (1973-01-01), Feather et al.
patent: 4637379 (1987-01-01), Saringer
patent: 4676501 (1987-06-01), Hoagland et al.
patent: 4842265 (1989-06-01), Kirk
patent: 5314390 (1994-05-01), Westing et al.
patent: 5456648 (1995-10-01), Edinburg et al.
patent: 5514053 (1996-05-01), Hawkins et al.
patent: 6001071 (1999-12-01), Butler

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