Locking mechanism for automatic safety cut-out of electrical installation, has spring mechanism, hand-levers coupling end forced against stop, and stop and coupling surfaces defining housing when coupling lever is in stable position

摘要

The mechanism has a spring mechanism (38) and a lever (8) with a stop surface. The surface and a coupling surface (22) define housing with walls forming a stop when a coupling lever (18) is in stable position. A coupling end of a hand-lever (3) is forced against the stop. The surface (22) is conformed such that at all points of the surface, a normal to the surface is oriented along a direction meeting a rotating axis of the lever (18).