| 摘要 |
A tethered ball baseball pitching practice apparatus whereby the apparatus is comprised of a support base having a rotatable, vertically extending post attached thereto. Attached to the upper end of the post is one end of an elongated horizontally extending arm. The free end of the horizontal arm has attached thereto a semi-rigid arm. A ball is attached to a free end of the semi-rigid arm. The arm is provided with spring elements to dampen oscillation of the ball after being struck by a batter.
|
