| 摘要 |
A putter club head is provided with an elongate cavity communicating to the exterior through a rectangular opening in the striking face thereof spaced above the club head lower surface that forms a lower shielding structure to deflect any growth in the course of a putting stroke. A conforming tubular segment is then mounted for rotation within the cavity to expose a portion of its peripheral surface beyond the plane of the striking face generally elevated above the bottom surface to a height corresponding to the elevation of the contact periphery of a golf ball resting thereon. In this manner little or no spin is imparted to the ball when struck by the roller since the lower club surface shields the roller from any moments imparted by the growth covering the green.
|
