| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a bat for baseball or soft ball, which is excellent in durability and can improve the flying distance of a ball by sufficiently transmitting the energy of the bat to the ball. <P>SOLUTION: The bat comprises a bat body 10 having: a grip 14, a tapered part 13 and a first tube 15; a second cylindrical tube 20, both ends of which are open and the inner diameter of which is larger than the outer diameter of the first tube 15; and a securing member 30 having first and second securing members 31 and 35 for securing the second tube 20 to the bat body 10. The second tube 20 is disposed around the periphery of first tube 15 of the bat body 10 and secured such that a prescribed clearance 60 is formed between the bat body 10 and itself by way of the first and second securing members 31 and 35. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
