GOLF CLUB HEAD PROVIDED WITH HOLES AND MANUFACTURING METHOD FOR GOLF CLUB HEAD

摘要

PROBLEM TO BE SOLVED: To provide a golf club head that improves a distribution of internal stress in a crown part and has a low possibility of causing a structural failure over time.SOLUTION: A golf club head includes multiple holes 112 that are formed in a concave part 128 defined by an outer periphery 124 which is arranged in a second area 120 of a crown 109. In one example, a bell-shaped curve 122 may define a portion on the outer periphery 124 which communicates with a first area 118. The concave part 128 may also be provided with a concave lip to be defined along the outer periphery 124 so that the concave part 128 is arranged relatively lower than the first area 118 on the crown 109.SELECTED DRAWING: Figure 1