| 摘要 |
PURPOSE: A ball game training apparatus is provided to obtain three dimensional data by securing a similar state to the power received state of a free sphere when a stress ball is manipulated or used. CONSTITUTION: A ball game training apparatus includes a fixing assembly(10), a first rotation assembly(30), a second rotation assembly(50), and a moving assembly(70). The first rotation assembly is pivot-installed to the fixing assembly to be capable of being swung. The second rotation assembly includes a first connecting part(51) and a second connecting part(52). The moving assembly is pivot-installed to the second rotation assembly to be capable of being swung. The first connecting part is pivot-installed to the first rotation assembly, and the second connecting part is shifted about the first connecting part. The moving assembly includes a stress ball(90) which operates by external force. The three dimensional position change of the stress ball is generated about the fixing assembly.
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