| 摘要 |
A baseball batting practice device includes a home plate having a center axle extending upright from the home plate, an elongate and radially extending bar having a first end defining a hole through which the center axle extends for the bar to be rotatable about the center axle on the home plate, a bi-directional ratchet mechanism including a toothed disc and a pawl member engageable with each other arranged between the home plate and the bar to allow for angular displacement of the bar with respect to the home plate and a stand mounted to the bar and extending upright therefrom to support a baseball on a top end thereof. The stand includes a slide movably received in a radially extending channel defined in the bar whereby the stand is linearly movable with respect to the center axle in a radial direction.
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