| 摘要 |
1) Volleyball post, characterised in that it comprises: a) a housing with a pinion (1) and a rack (2) with ratchet controlled automatically by a crank, and which enables users to manoeuvre this post easily in terms of height adjustment without removing the net; b) a second housing with 2 geared-down trapezoidal pinions with angular deflection with non-return ratchet also controlled automatically by a removable crank, and which serves for winding up the net without taking it down. <IMAGE>
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