| 摘要 |
PROBLEM TO BE SOLVED: To provide a tennis racket in which a warping position of the tennis racket at the time of swinging can be set to be a predetermined position desired. SOLUTION: A tennis racket 3 comprises a face part 4, a shaft part 5, and a grip part 6 forming an integrated body of FRP as a whole. Thickness of this tennis racket 3 in the vertical direction to a face surface is quickly changed at step parts 1, 2. The first step part 1 is provided on the face bottom 4b side of a middle part between a face top 4a and a face bottom 4b in a face side 4c. The second step part 2 is provided on the shaft part 5. Thickness (back width) around the first step part 1 on the face top side is t1 , and thickness (back width) on the face bottom side is T1 , then t1 is 75-95% to T1 . Similarly, t2 is 75-95% to T2 . |
