| 摘要 |
PURPOSE: A jump playing device is provided to redouble a thrill and a pleasure, to develop the sense of equilibrium and the pliability of body, and to allow a pyknic type user to consume a large amount of energy. CONSTITUTION: The jump playing device is comprised of a two stroke typed cylindrical cylinder; a piston(120) tightly sealed with the inner surface of the cylinder to be reciprocally moved toward the center axis of the cylindrical cylinder; a piston rod formed with a spring(132) to attain a force for lowering the piston to a bottom dead center; a suction/discharge device(140,150) and an ignition device(160); a frame(200) having a footboard and a handle(210). The one end of the piston rod is mounted to the piston, and the other end is mounted with a damping rubber(131). The suction/discharge device sucks and compresses a fuel mixing gas while the piston moves toward a top dead center or the bottom dead center in the cylindrical cylinder, and the ignition device ignited the compressed fuel mixing gas to attain power. The frame is mounted to the upper end and the lower end of the cylindrical cylinder to help the riding of a player.
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