Quick tensioning nut, in particular for fixing a vehicle tyre to the tension shaft of a balancing machine

摘要

The quick-action lock nut (1) comprises a housing portion (2) and thread segments (3), which are arranged radially moveable in the housing portion. An operating unit is provided for radial movement of the thread segments. Guide surfaces (7) are provided in the radial direction for the thread segments in a beveled manner.