| 摘要 |
Anyone who has watched a child, or an adult for that matter, make his/her first tries to hit a pitched ball, will have noticed that the swings are mainly high. Commonly, not enough allowance has been made, if any, for the speed at which the ball is falling, let alone the steady rate at which that speed is increasing. The present invention is a mechanical aid to help would-be batters practise learning that skill, by delivering a series of falling balls to them at 5 to 7 second intervals, so they can practise hitting them with a bat. The method assumes that this skill, once mastered, will transfer .over into that of swinging at a pitched ball, which has, excerpt for aerodynamic effects, exactly the same vertical component of motion. The invented device, once initialized, is powered solely by gravity, and can be used without modification with standard softballs, junior softballs, or standard baseballs (hardballs).
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