| 摘要 |
A wood-type hollow golf club head comprises a face having a specific thickness distribution, wherein average thicknesses tUTP, tUCP, tUHP, tMTP, tMCP, tMHP, tLTP, tLCP and tLHP of an upper toe portion UTP, upper central portion UCP, upper heel portion UHP, middle toe portion MTP, middle central portion MCP, middle heel portion MHP, lower toe portion LTP, lower central portion LCP, and lower heel portion LHP, respectively, of the face satisfy the following conditions: (a) tUTP<tUCP>tUHP; (b) tMTP<tMCP>tMHP; (c) tLTP<tLCP>tLHP; (d) tUTP>tMTP<tLTP; and (e) tUHP>tMHP<tLHP, and further, in the above nine average thicknesses, (f) the largest average thickness is 2.8 to 3.5 mm; and (g) the smallest average thickness is 1.6 to 2.3 mm.
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