Exercise devices – Support for entire body of user – Swivelled foot platform
Patent
1997-07-08
1999-03-30
Donnelly, Jerome W.
Exercise devices
Support for entire body of user
Swivelled foot platform
482146, A63B 2214
Patent
active
058881824
ABSTRACT:
A rotary torso comprises: a frame with a base, several supporting columns vertically installed on the base, a U shape railing installed a little bit above the supporting columns, and a U shape handle installed at the top of the supporting columns; a hollow box shape rotating arm, with one rotatable end pivot installed by a shaft bearing at the central bottom of a fixed shaft; a rotating plate, with a rotatable central hub, supported at the rotating shaft at the free end of the rotating arm; and a driving structure installed inside the hollow part of the rotating arm.
The driving structure comprises: a driving sprocket installed at a rotating shaft supported by a shaft bearing at the free end of the rotating arm; a fixed sprocket installed at the fixed shaft on the same plane of the driving shaft; and a driving chain circularly suspended between the driving sprocket and the fixed sprocket, when the rotating plate rotates in one direction, the rotating arm rotates in the opposite direction of the rotating plate by the driving structure with the fixed shaft as a center.
The frame can be partly detached and folded into layers.
REFERENCES:
patent: 2906532 (1959-02-01), Echols
patent: 3441271 (1969-04-01), Palacios
patent: 3911907 (1975-10-01), Smith
patent: 5599262 (1997-02-01), Shih
patent: 5632711 (1997-05-01), Hwang
patent: 5695439 (1997-12-01), Lin
Donnelly Jerome W.
LaMarca William
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