| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an iron head having a wide sweet area and capable of obtaining a good impact feeling when hitting a ball at a middle portion thereof. <P>SOLUTION: An iron head 10 is provided with a cavity portion 16 provided in an upper portion of a backside surface thereof, and a protruding portion 17 provided at the lower portion of the backside surface. A first hollow portion 18 is provided on a heel side so as to penetrate from the bottom surface 16b of the recess portion to a sole surface 14, and a second hollow portion 19 is disposed on a toe side. The hollow portions 18 and 19 have bottoms closed by the bottom lid 20. The hollow portions 18 and 19 do not exist behind a sweet area. The hollow portions 18 and 19 may be filled with a shock absorber formed of a rubber or an elastomer. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
