| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a bat which permits the lengthening of its carry by increasing the recovery speed of elastic deformation. <P>SOLUTION: The metallic bat 1 is made of a hollow cylinder body 2, a metal, synthetic resin, wooden, bamboo- or cork-made stiff reinforcement materials 5F and 5B having nearly the same outside diameter as the inside diameter of the bat inserted into both ends of the distal end and the proximal end of the length direction in the hollow cylinder body 2 of a ball striking portion 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
