Anti-theft device for use in semi-trailer, has locking unit provided between two adjustable positions at semi-trailer part such that coupling connection is established in one position and is not established in another position

摘要

The device has a locking unit (36) constantly attached at a semi-trailer part (20). The unit is provided between two adjustable positions at the semi-trailer part such that a coupling connection is established in one position and is not established in another position. The unit is deviatable within an adjustment level, where swiveling axis of the unit is aligned approximately perpendicular to axis of a crown bolt (28).