| 摘要 |
Device for the adjustment of preferably ball game rackets which is intended to bring about the desired tension in a racket surface through adjustment of the tension in the strings and which consists of a triangular holder (1) provided with a groove (2) for the string and with an adjustment screw (5) whose tip is directed towards the apex of the holder, the screw tightening a string to the desired result by pressure. |
