| 摘要 |
<p>Accordingly, the invention is a Double-Faced Tennis Racket composed of a handle (1), a frame head (2) with an elliptical face that is symmetrically convex when viewed laterally on which the horizontal strings (3) are strung independently and the, vertical strings (4) are overlapped independently as well and distributed in a fan-shape starting from the tension- adjusting device (5) upwards, these being subjected to the tension applied thereby transferring it to the others through compression successively making the faces plane with either equal or different tension levels depending on factors such as weather conditions, the type of surface being played on and the player's profile. This invention is applicable to the manufacturing of all types of rackets, whether for tennis or other similar sports in which the ball is not stiff, and can be made in diverse shapes, sizes and convexities.</p> |
