| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight racket frame with stable quality which can secure enough strength and stiffness to practical use as a racket frame. SOLUTION: A racket frame is composed of axes 11 of which at least a part of rainforcing fibers which constitute shell layer 6 of the racket frame is arranged along a direction of peripheral length of the racket frame and a triaxial fabric 13 that weaves axes 12a, 12b which are arranged so as to have inclined angles which are opposite to the axes 11 of the direction of peripheral length mutually. Furthermore, a part of the axes 11 of the direction of peripheral length which constitutes the triaxial fabric 13 are composed of a metallic fiber 14. |
