Automatically-adjustable uneven parallel bars for gymnastics

Details Automatically-adjustable uneven parallel bars for gymnastics Automatically-adjustable uneven parallel bars for gymnastics

1985-11-12

1987-08-18

Apley, Richard J.

Undertaking

272DIG4, A63B 300

Patent

active

046871942

ABSTRACT:
Uneven parallel bars for gymnastics have motors for variably establishing not only the spacing between the handrails but also different predetermined vertical heights of the handrails relative to the floor surface. A single motor at each end of the handrails performs all of the adjustments without requiring any movement or adjustment of the tensioning cables. The motors are able to adjust the handrails not only prior to a gymnast's performance, but also during the performance if desired.

REFERENCES:
patent: 3534955 (1970-10-01), Weeland
patent: 4402501 (1983-09-01), Lohman
patent: 4491314 (1985-01-01), Belyavsky et al.
patent: 4555107 (1985-11-01), Otto

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