1983-07-21
1987-03-03
Apley, Richard J.
Undertaking
272144, 128 75, A63B 2100, A61H 102
Patent
active
046470409
ABSTRACT:
Disclosed are two separate leg supporting members which are independently and pivotally connected to a base assembly. At their pivotal connection with the base assembly, they are further provided with a torque disk assembly having cables attached thereto. In a preferred embodiment, the cables are merely segments of a single cable which travels from one torque disk assembly through a guide around a pulley back through the guide to the other torque disk assembly. As the pulley is moved away from the guide, the cable causes the torque disk assemblies to rotate, forcing the two leg supporting members apart, stretching the legs of the user into a "split" position. The fact that the cable is free to move around the pulley permits the leg supporting members while maintaining the angle therebetween substantially constant. Additionally, a shift selector is provided which can controllably lock either of the leg supporting members into a fixed position with respect to the base assembly so that the machine may be utilized in the single leg mode of operation. The pulley is moved with respect to the guide through the use of a worm gear which is rotated by turning of a crank handle. The worm gear threads are chosen so as to prevent movement of the crank handle under the tension placed upon the pulley.
REFERENCES:
patent: 3699953 (1972-10-01), Mason
patent: 3868951 (1975-03-01), Albrecht
patent: 3871366 (1975-03-01), Cotrel
patent: 4125258 (1978-11-01), McArthur
patent: 4240627 (1980-12-01), Brentham
patent: 4354485 (1982-10-01), Safadago
patent: 4360009 (1982-11-01), Weisman
"Black Belt"-Black Magazine, p. 17, (Stretching Machine) May 1980.
"Hurley"-Black Belt Magazine, Feb. 1982, vol. 20, #2, p. 17.
Apley Richard J.
Bahr Robert W.
Treco Products Inc.
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