| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve strength of a fixing part between different kinds of materials, to prevent breakage, to enlarge a sweet spot, and to lower a position of the gravity center. <P>SOLUTION: A cup-like front surface body constituting a face part and a part of a sole part, a side part and a crown part extending to the back from the entire peripheral edge of the face part is formed by a metal material, a bottom surface body constituting a large part of the sole part and the side part at the front surface body is formed by a metal material of a specific gravity greater than that of the front surface body, and the crown part fixed to the front surface body and the bottom surface body is separately and independently formed by a fiber reinforced resin material. A hosel into which a shaft is inserted and fixed is integrally or separately provided on the upper surface heel side of the front surface body. A flange having a level difference of the crown part of the front surface body and a bent flange of the side part of the bottom surface body are abutted and fixed by adhesion to the peripheral edge lower surface of the crown part, and a bent flange of the sole part front edge of the bottom surface body is abutted and fixed by adhesion to the sole part upper surface of the front surface body. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
