| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a grommet which can reinforce a decreased tension of strings of a tennis racket. <P>SOLUTION: The grommet 1 of the tennis racket is provided with protrusions 3. Tapered and flexible wedges 6 are press-fitted in spaces 5 between the strings 4 and the grommet 1 for expanding the strings 4 and preventing a decrease in tension. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
