1990-06-01
1991-04-02
Crow, Stephen R.
Undertaking
272DIG4, A63B 2304
Patent
active
050042246
ABSTRACT:
A stepping exerciser has a pair of treadles pivoted to a front end of a frame body. A rod is fixed to the front end of each treadle and extends downward. The lower ends of the rods are coupled together by a pair of link rods and a lever. A pair of cylinders are coupled between the frame body and the rods. One of the treadles is rotated upwards when the other treadle is depressed downwards by a user so that the user may simulate stepping or climbing a ladder.
REFERENCES:
patent: 4830362 (1989-05-01), Ball
patent: 4832332 (1989-05-01), Dumbser
patent: 4838543 (1989-06-01), Armstrong et al.
patent: 4909504 (1990-03-01), Yang
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