WATER BIKE Russian patent published in 2014 - IPC B63H16/10 B63B35/00 

FIELD: transport.

SUBSTANCE: invention relates to floating crafts, namely to water bikes designed for active rest and riding over water surface. The water bike contains floats fastened by cross members, seat and pedal propeller, as well as driving sprocket, swinging arm, a pair of enveloping sprockets, cantilevered axle, bushing with driven sprocket, free-wheel clutch, screw-propeller and round-link welded calibrated chain. The swinging arm is installed together with a pair of enveloping sprockets on the cross member and is made capable to recline back. The lower end of swinging arm contains axle. On the cantilevered portion of axle, bushing is installed which is rigidly connected with driven sprocket and is made capable of axial rotation and interaction with screw-propeller via free-wheel clutch. The pedal propeller contains driving sprocket which interacts with round-link welded calibrated chain the branches of which are hitched over enveloping sprockets and close on driven sprocket.

EFFECT: improvement of ride performance, noiselessness of propeller operation, high efficiency, high metacentric stability, ease of transportation, protection of propeller components during collisions with obstacles, structural simplicity.

2 dwg