| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain such a thick bat that a place where the ball hits is widen so that a ball can simply be hit back, and the bat is not bulky when it is carried and housed. <P>SOLUTION: Respectively one ends of a plurality of ribs 3 combined with a string 7 are supported by a supporting ring fixed to one end part of a core 1 via an O-ring 4, and the other ends of the plurality of ribs 3 are supported by a grip 2 provided at the other end part of the core 1 via an O-ring 5. In the state of sliding the grip 2 in the direction of the center part of the core 1 to form a rotary elliptical body with the core 1 as an axis by the plurality of ribs 3 cured like bows, a stopper pin 8 which can be pulled out and inserted is inserted to a hole through the grip 2 and the core 1 to fix the grip 2 and the core 1. <P>COPYRIGHT: (C)2003,JPO</p> |
