RECREATION AND SPORTS CATAMARAN, DAS SYSTEMS Russian patent published in 2017 - IPC B63B35/73 

FIELD: healthcare, games.

SUBSTANCE: invention refers to the water transport, particularly, to the facilities designed for improvement of recreational and physical performance of users, as well as for trips, cruises, fishing, recreation, and tourism. The recreation and sports catamaran contains a deck with floats, a frame with a seat, a steering device, and a propulsor. The steering device contains a keel rudder performed with the possibility of rotation on the frame, and on the free edges of the frame, the floats are secured pivotally by means of balancing devices. The propulsor is performed in the form of a two-pedal reversed drive, on the shaft of which a coupling is secured. The coupling is performed in the form of an ellipsoidal wheel, on the curved surface of which detachable stroke blades are secured. The blades are performed with the possibility to interact with the surface of water; when the larger axis of the ellipse matches the axis Y, while the pedal are rotated in the counter-clockwise direction, the forward moving is performed, and disconnection with the surface of water occurs, when the larger axis matches the axis X, whereupon, a gap between adjacent surfaces of the ellipse and the surface of water is formed. Braking of the catamaran is performed by rotation of the pedals in the clock-wise direction.

EFFECT: recreation and sports catamaran with advanced functional features.

4 cl, 8 dwg