Sporting and exercise apparatus

Details Sporting and exercise apparatus Sporting and exercise apparatus

1990-01-19

1991-09-24

Bahr, Robert

Undertaking

280245, A63B 6916

Patent

active

050508644

ABSTRACT:
The invention concerns a sporting and exercise apparatus movable by muscular force consisting of a frame having for the user an elongated platform supported by at least two wheels and of a mechanical hand-lever drive for converting a lever motion into a rotary motion of at least one of the wheels. The lever drive has at least one hand lever hinged on the frame which actuates either two racks, at least one gear segment or a chain/segment drive which act upon gears supported on a driving axle so that the racks, segment or the chain, when the lever is moved in one direction, actuate one gear to rotate clockwise and another gear counterclockwise, each gear being supported on the driving axle via a free-wheel unit.

REFERENCES:
patent: 1276168 (1918-08-01), Buchholz
patent: 1598788 (1926-09-01), Sinderson
patent: 2085657 (1937-06-01), Heisdorf
patent: 4509742 (1985-04-01), Cones
patent: 4712790 (1987-12-01), Szymski
patent: 4757988 (1988-07-01), Szymski
patent: 4828284 (1988-05-01), Sandgren
patent: 4871164 (1989-10-01), Tseng
patent: 4880225 (1989-11-01), Lucas et al.

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