| 摘要 |
PURPOSE: A pitching machine is provided to reduce power for rotating a ball throwing unit by adjusting the height of a ball. CONSTITUTION: A pitching machine comprises a ball throwing unit which throws a ball forward, a ball supply unit(300) which supplies a ball to the ball throwing unit, and a frame(100) in which the ball throwing unit and ball supply unit are installed. The top end of the ball throwing unit is rotationally installed at the top end of the frame and comprises a tilting unit(400) which controls the vertical direction of a ball. The tilting unit comprises a spiral screw, a drive motor, a slide block, and a rotary connection unit.
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