Box commprising a cover for housing an electric apparatus

摘要

The box has a cover comprising a female shaft (41) with an end having a conical slot (43) to interlockingly receive a conical stud (42) that is provided in an end of a male shaft (40) of a body. The female shaft has teeth (55) projecting axially above an outlet (56) of the slot. Each tooth has an inner side with a guiding ramp (57) to guide the tooth towards the slot, where the ramp is connected to a lateral surface (46) of the slot.