| 摘要 |
<p>The invention refers to a rolling ball device comprising a pair of ball support structures secured together and spaced apart so as to support a golf ball there between, each of the ball support structures having a first portion having a first end and a second end and having a first surface with a clothoid shape and having a second portion having a first end coupled to a second end of the first portion and a second end, the second portion having a first surface having an arc shape and having a third portion having a first end coupled to the second end of said second portion and having a second end, the third portion having a first surface having an inverted clothoid shape.</p> |
