| 摘要 |
A pitching apparatus is provided that teaches the fundamental techniques of a desired pitch through the regulation and control of a control arm. The pitching apparatus consists of a mechanical box housing, a control arm, and a control box housing. The mechanical box housing utilizes a vertical axis member, a collar with a cutout, and a latch to position the control arm into a locked position. A light emitting diode sensor and a solenoid coact to release the control arm from the locked position and a spring mechanism moves the control arm into a rest position. The control box housing supports a control panel and is used to regulate and control the mechanics of the mechanical box housing in accordance with the selected pitch that the pitcher would like to learn.
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