| 摘要 |
<p>An accessory for tennis rackets emits a whistling sound during the stroke movement. In order to restrict this whistling sound to a shorter movement phase and achieve a dual function of the accessory, the latter consists of a hollow flat housing 1 serving simultaneously as a vibration damper and, like the latter, capable of being clamped between racket strings 6. The two covering walls 2 of this flat housing 1 are centrally perforated and the lateral walls 4 form grooves 5 for the engagement of racket strings 6. <IMAGE></p> |
