| 摘要 |
<p>PURPOSE: To enhance a just meeting rate by adopting edge grain members to the respective members of a wooden bat formed by joining plural members and setting the edge grain directions of the respective edge grain members so as to head toward the center at the cross section of the bat. CONSTITUTION: The edge grain members 1, 2, 3, 4 are adopted to the respective members of the wooden bat (a) formed by joining the plural members and the edge grain directions of the respective edge grain members 1, 2, 3, 4 are so set as to respectively heading toward the center in the cross section of the bat. The wooden bat has just meeting sections X1 to X4 in four directions and the just meeting rate thereof is correspondingly higher. Then, the sure and distant driving of a ball is possible.</p> |
