| 摘要 |
<p>The invention relates to a pull coupling for a trailer, comprising a socket (1) for receiving a pull knob, a locking bar (2) for locking the pull knob in the socket, a spring (3) for urging locking bar (2) into a locking position, a handle (4), connected with the locking bar and for moving locking bar (2) against the force of spring (3) into a locking release position, as well as a lock device for locking said locking bar (2) in the locking position. The lock device includes a locking axle (6) which is rotatable around its longitudinal axis and which, after being rotated into the locking position, engages in a recess (7) formed in the locking bar. Locking axle (6) is provided with a recess (8) which by rotating the locking axle can be turned towards locking bar (2) for releasing the locking. In cooperation with locking axle (6) there is provided a cylinder lock by means of which said locking axle (6) can be released for rotation only when lock (9) is opened with a key.</p> |
