Safety plug socket with integral switch - has stop preventing insertion or removal of plug when switch is closed

摘要

The safety plug socket (1) has an integral switch, which connects and disconnects the supply to the socket terminals. The plug has a lateral guide pin, which slides along a groove in the casing of the socket and acts on a retractable stop coupled to the switch mechanism. The stop prevents insertion or removal of the plug when the switch is closed and the supply is connected to the socket terminals. The stop comprises a pivoted vane coupled to the switch mechanism via a triangular lever arm linkage.