| 摘要 |
Disclosed is a water bicycle. According to an aspect to the present invention, provided is water bicycle with an acceleration pedal using the principle of a lever and a rewinding phenomenon including a frame joined to a handle where a rudder is fixated and a propulsion device; left and right crank shafts joined to the left and right sides of the handle of the frame to be able to rotate at standard points respectively, composed of a bar-shaped long shaft and a bar-shaped short shaft having different lengths and connected to each other at the standard points; a rewinding converting unit composed of a first driving shaft joined to the front side of the frame to be able to rotate, left and right driven pulleys formed on left and right ends of the first driving shaft; and a power transmission unit delivering the rotation of the first driving shaft to a rotary shaft of the propulsion device joined to the frame to be able to rotate. The long shaft is longer than the short shaft and includes one end connected to the short shaft and the other end including a pedal where a user can press down. A driving pulley is formed on the other end of the short shaft opposite to the end connected to the long shaft. First indirect power transmission members such as a rope or a belt are fixated to driving pulleys of left and right crank shafts respectively and wound on the left and right driven pulleys in the directions opposite to each other. |
