| 摘要 |
A device for prevention of unauthorised access to the mechanical actuator, in the form of a hexagonal nut 4, comprises an enclosure including an outer element 2, attached to a surface 3 of the caravan or trailer, and an inner element 6 slidably received therein. The two elements are secured together by security lock 8 having a pivotable locking lever 19 engageable in slots 15,18. The two elements have a D-shaped cross-section to prevent relative rotation. |
