Patent ID: 7431668
Filing Date: 2008-10-07
Classification: A63B

Abstract:
1. A hollow golf club head comprising: a face part; a crown part; a sole part; a side part; and a hosel part, wherein the head has a volume of 80 to 200 cm3 and a weight of 205 to 250 g, a distance between a face-side edge and a back-side edge divided by a distance between a toe-side edge and a point at which a horizontal line passing through a face center point intersects a heel-side edge is 0.3 to 0.7, the crown part includes: a large-thickness crown part formed along an overall edge thereof; and a small-thickness crown part which is formed inside the large-thickness crown part and has a thickness less than a thickness of the large-thickness crown part, and the side part includes: a heel-side small-thickness side part formed at a heel side; a toe-side small-thickness side part formed at a toe side; and a large-thickness side part which is formed at a portion of the side part other than the heel-side small-thickness side part and the toe-side small-thickness side part and has a thickness greater than thickness of the heel-side small-thickness side part and the toe-side small-thickness side part.