| 摘要 |
Device which is actuated and maintained by axial pressure for mutual locking of sections of a telescopic tube, in particular for making handles for floor brushes and the like, comprising a cap-type retention pin (5, 9) for an expansion bush (11) which is provided on its shell with a conical slot (16) with offset entrance shoulders (17, 18) which is capable of being intercepted and penetrated by a wedge-shaped tongue (10) which projects on a thicker proximal portion (6) of the pin (5). <IMAGE> |
