HAND CRANK ROTATION PREVENTION SYSTEM FOR SUPPORTING WHEELS FOR VEHICLE TRAILERS AND SUPPORTING WHEEL WITH SUCH A HAND CRANK ROTATION PREVENTION SYSTEM.

A hand crank rotation locking device for support wheels of vehicle trailers comprises a locking bracket (15) which can be brought into and out of locking engagement with a hand crank (4) of the support wheel (1) by means of a pivoting movement. Furthermore, a clamp holder (14) is provided for pivotably supporting the locking bracket (15), wherein the clamp holder (14) has a retaining clamp (16), which is configured to enclose an outer tube (3) of the support wheel (1), and a pivot bearing device attached to the retaining clamp (16) for pivotably supporting the locking bracket (15).