| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ball bat for enabling greater ball bat design flexibility and optimization. <P>SOLUTION: A ball bat 10 extending about a longitudinal axis includes a tubular bat frame 12 that includes first and second frame pieces. The first frame piece has a gripping portion 28 integrally formed to a transition portion. The transition portion has a distal end region 24. The second frame piece has a proximal end region 22. The distal end region of the first piece is coupled to the proximal end region of the second piece. One of the distal and proximal end regions overlaps the other of the distal and proximal end regions. The bat has a center of percussion, and the mid-length of the overlap of the distal and proximal end regions is positioned within plus or minus three inches of the center of percussion of the bat. <P>COPYRIGHT: (C)2012,JPO&INPIT |
