Första kopplingsdel och verktygskoppling

摘要

A first coupling part (1) interacts with a second coupling part (2) of a tool coupling. The first coupling part (1) comprises a first body (10) and a conical pin (11), which extends from the first body along a centre axis (x) to an end surface (12). The conical pin is insertable into a conical seat (21). The conical pin comprises a cavity (13), which extends from the end surface and comprises a number of first protuberances (15), which are separated and arranged at a distance from each other along a circumferential direction in respect of the centre axis (x) so that there are formed a corresponding number of first recesses (16). The first protuberances form a respective first contact surface (18) and interact with a corresponding number of separated, second contact surfaces (48) of a pull member (40) of the second coupling part. The first contact surfaces form an acute angle with the centre axis.