Bicycle propelled by movement of saddle

摘要

The bicycle has a saddle, and drive elements leading to one of the wheels. The bicycle has a turnably held saddle (20), and is propelled by the cyclist sitting on the saddle and moving his body. Bars (25) extend from the saddle to drive elements (5-7), which are carried in the bottom bracket bearing (4). Foot supports (11) are located on the frame (1) above the front wheel fork (9). The saddle is pivoted in longitudinal direction of the bicycle, and has a central pivot point (22). An additional bearing point (24) is located under the side facing the handlebars, and bars extend from here on both sides to short cranks (26) in the bottom bracket bearing, to which the sprocket wheel (5) is fastened.