Safety coupling

A safety coupling, comprising:

• a driving coupling member, a driven coupling member, and a frictional connection engaging said driving coupling member with said driven coupling member;
• a release element configured to disconnect said frictional connection between said driving coupling member and said driven coupling member;
• a centrifugal device configured to activate said release element for disconnecting said frictional connection;
• said centrifugal device having a centrifugal unit moveably disposed to interact with a shift gate in dependence on a rotational speed of said driving coupling member and a slip between said driving coupling member and said driven coupling member;
• said centrifugal device having a stop disposed to limit a centrifugal force applied to said centrifugal unit;
• and
• said centrifugal unit including a rotatably supported main lever having an interacting side disposed to move in a radial direction in dependence on the rotational speed and to interact with the shift gate.