| 摘要 |
PURPOSE: A powerless ping-pong training device is provided to control a desired direction, height, and interval by a training purpose without using electricity. CONSTITUTION: A powerless ping-pong training device comprises: a main body(100) which controls the fall direction of a ping-pong ball to one direction or an exchanging direction of the left or the right, and time intervals between ping-pong balls by a distributing device after storing the balls in a ball inserting section; a height control section(110) which controls height to control the falling speed of the balls from the main body; and a stanchion(120) which controls the height of a racket supporting the height control section and the racket.
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