| 摘要 |
<p>A lock (1, 30) is disclosed of the kind comprising : a box body (2) with a faceplate (3) and a bolt (4) co-operating with moving means (5) to be actuated by a key and a mechanical adjustment unit (6) adapted to change the length of the portion (4a) of the bolt (4) protruding from the faceplate (3). The mechanical adjustment unit (6) comprises a plurality of seats (13) made in the bolt (4) and a contrast element (14) normally inserted in a corresponding seat (13) of the bolt (4) belonging to sliding means (15) co-operating with adjusting means (17) accessible from outside of the box body (2) and adapted to constrain the contrast element (14) in the corresponding seat (13) or to release it therefrom.</p> |
