| 摘要 |
The invention relates to a tennis racket including a frame, delimiting a surface strung with cords and forming a screen, and a sleeve extending the frame outside the screen, characterized in that the frame consists of, at least within a peripheral region, a curved laminate comprising at least two layers of different materials adhered together, the laminate being shaped such that, in a closed cross-section of said peripheral region considered to be perpendicular to the neutral fiber of the frame, the center of mass of said cross-section is offset, relative to the surface center of gravity of said cross-section, toward the screen with a value at least equal to 5% of the width of said cross-section, said width being defined by the intersection of the cross-section and the plane of the screen. |
