| 摘要 |
<p>A sports training ball for a predetermined sport that uses a sports ball shape that is substantially spherical is described. The sports training ball has an outer shape that is disc shaped formed in part by substantially parallel side surfaces and another part by a spherical outermost circumferential surface. The sports training ball is used by a person training to the ball to impart spin and drift. The shape of the sports training ball will assist an observer such as the person or their trainer to detect whether the throw, hit or bowl is properly or improperly achieved. A further aspect of the invention is the disclosed various methods of forming a training sports ball including in one instance the steps of removing two opposed portions of a substantially spherical sports ball used in the predetermined sport to form the outer shape into a disc like shape where the sports training ball has substantially parallel side surfaces and a spherical peripheral surface.</p> |
