| 摘要 |
<p>Tennis racket with a head (13) being connected, by means of a throat (13a), to a supporting tube (3) placed in a hollow tubular handle (1) for angle-limited and, in its extreme positions, lockable turning of the head (13) against the handle (1) is equipped, according to the invention, with a controlling socket (2), mounted to the supporting tube between the head (13) and the handle (1) in a revolving manner, the free end of the controlling socket (2), reaching between the handle (1) and the supporting tube (3), forms a gear cage (2b) of two-way overrunning clutch (4) which outer ring is formed by the handle (1) and its inner ring is formed by the supporting tube (3) in order to optionally provide for mutual grip of the handle (1) and the supporting tube (3) or for free carrying of the supporting tube (3) with the controlling socket (2) in both rotation directions whereas the other free end of the controlling socket being adapted to a handle to be gripped with the tennis player's hand. Advantageously, at least a stop (7) reaching to the radial recess (8) in the handle (1) or in the controlling socket (2) may be installed in the supporting tube (3) in order to set the extreme positions of turning of the head (13) against the handle (1).</p> |
