| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a golf club head having a replaceable striking face, more specifically, a golf club head where at least a portion of the frontal striking surface of the face is detachable and replaceable to improve performance. <P>SOLUTION: A golf club head 100 may generally have a thinned striking face with a thickness of less than about 3.0 mm, yielding a golf club head 100 with a larger sweet spot that is greater than 6% of the frontal striking surface 109; defined as an area of the frontal striking surface 109 of the golf club head 100 having a characteristic time that is at least 99% of a maximum characteristic time of between about 239 microseconds to about 257 microseconds. <P>COPYRIGHT: (C)2011,JPO&INPIT |
