| 摘要 |
<p>An adjustable-length, fast-fit fastening device (1), in particular for a sanitary fixture control plate, has a main member (5), a connecting rod (7), and a lock member (8); the main member (5) and the lock member (8) have respective seats (6, 36) aligned along an axis (A), and the rod (7) is inserted inside the seats (6, 36) so as to slide along the axis (A); the seats (6, 36) have respective threaded sectors (19, 49) alternating circumferentially with smooth sectors (20, 50); and the rod (7) has longitudinal threaded portions (59) for engaging the threaded sectors (19, 49) of the seats (6, 36), and which alternate circumferentially with longitudinal grooves (60). The lock member (8) is movable with respect to the main member (5) to selectively align and offset the threaded sectors (19, 49) of the two seats (6, 36) along the axis (A); when the threaded sectors (19, 49) of the seats (6, 36) are aligned, the rod (7) slides freely inside the seats (6, 36) along the axis (A); and, when the threaded sectors (19, 49) of the seats (6, 36) are offset, the rod (7) is screwed inside the seats (6, 36) by the threaded portions (59).</p> |
