| 摘要 |
Apparatus for practicing and teaching ball batting characterized by use of a rotary member journaled for rotation about a shaft, and a flexible linkage affixes a ball, nominally a baseball, in a down-hanging position from the rotary member. When the ball is struck with a bat it will move in an arcuate motion about the axis of the rotary member. Particularly in accordance with the present invention, a backboard mounts the rotary member to a vertrical post. The backboard is releasably maintained upon the post by "U" bolts which hold the post against a channel formed by spaced-apart parallel spacer bars positioned upon the backboard. The flexible linkage incorporates a spring-biased hook allowing ready substitution of balls thereon.
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