Exercise devices – Involving user translation or physical simulation thereof – Stair climbing
Patent
1993-11-15
1995-10-03
Crow, Stephen R.
Exercise devices
Involving user translation or physical simulation thereof
Stair climbing
482902, A63B 2304, A63B 2100
Patent
active
054547709
ABSTRACT:
A stepper is incorporated with a sensor system and includes a frame assembly with a base frame and a center beam mounted securely on the base frame, and two foot-pedal arms located on two sides of the center beam. Each of the foot-pedal arms has an end mounted pivotally on the frame assembly. The sensor system is adapted to monitor exercise performance and generate exercise information and includes a photo-detecting unit mounted operatively on the frame assembly, a slotted wheel mounted axially on the end of a corresponding one of the foot-pedal arms, and an instrument control unit. The photo-detecting unit includes two photo emitters and two photo receivers. Each of the photo receivers is opposite to and aligned with a corresponding one of the photo emitters. The slotted wheel has a flange member extending toward the center beam and between the photo emitters and the photo receivers. The flange member has a plurality of angularly spaced-apart openings. The slotted wheel swings with the corresponding one of the foot-pedal arms to permit the photo receivers to receive light intermittently from the corresponding photo emitters. The instrument control unit is connected electrically to the photo-detecting unit so as to process signals therefrom and generate the exercise information based on the signals.
REFERENCES:
patent: 4674741 (1987-06-01), Pasierb et al.
patent: 4711450 (1987-12-01), McArthur
patent: 4714244 (1987-12-01), Kolomayets et al.
patent: 4838543 (1989-06-01), Armstrong et al.
patent: 4867447 (1989-09-01), Johnson
patent: 4934694 (1990-06-01), McIntosh
patent: 4938474 (1990-07-01), Sweeney et al.
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