| 摘要 |
A locking device for locking a rotatable shaft against rotation, for instance a shaft through which the supporting legs of a caravan are activated comprises a housing (4) having apertures (5) through which the shaft (2) can be inserted and an element (2a), such as a nut, mounted on said shaft. A locking sleeve (6) is arranged for movement parallel with the shaft between a release position and a locking position in which the locking sleeve (6) engages said element (2a), e.g. said nut. The shaft is then locked against rotation and the locking device is prevented from being withdrawn from the shaft. The locking sleeve (6) co-operates with a key-operated cylinder lock which, when the cylinder core or barrel of said lock and the locking sleeve occupy their respective locking positions, prevents displacement of the locking sleeve relative to said housing. One wall of the housing (4) may have a substantially T-shaped aperture (5a, 5b) for the shaft (2) and the nut (2a). The cylinder lock (11) may be mounted on the locking sleeve (6) and has a latch element (11a) arranged to be received in recesses or apertures (9; 10) in the locking cylinder (6) and the housing (4) respectively, said apertunes or recesses being aligned with one another when the locking sleeve occupies its locking position. Alternatively the cylinder lock (11) may be mounted to the housing (4) and has an axially displaceable and a rotatable core, said core being joined to the locking sleeve (6) through an element (13). |
