| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wood club head having a large-sized head of a hollow shell structure with which the torsional deformation of the head by the impact is effectively prevented. SOLUTION: The wood club head of the large-sized hollow shell structure formed with shell surfaces of a crown 2, both sides, a back sides 3, a face 5, a sole 4, etc. adjacently to each other is provided with at least one piece of triangular or rod-shaped braces 6 bridging the adjacent surfaces on the inside surfaces of at least 2 boundary portions varying in the combinations of the adjacent shell surfaces.</p> |
