Patent ID: 7205499
Filing Date: 2007-04-17
Classification: H01H

Abstract:
1. A device for fixing a shield in a switch comprising: an enclosure comprising a cylindrical part closed by at least one end cover, said enclosure housing two contacts extending axially inside the enclosure, at least one of which is a movable contact, connected to an operating mechanism for sliding between a closed position of the contacts and a position wherein the contacts are separated interrupting an electric circuit, said cylindrical part being mechanically connected via at least one free end to the at least one end cover and comprising at least two cylindrical insulators axially connected to one another, and at least one first protective shield supported by a first cylindrical ring fixed between the at least one free end of the cylindrical part and the at least one end cover at the point where the at least one free end and the at least one end cover are mechanically connected, said cylindrical part further comprising at least one second protective shield supported by a second cylindrical ring fixed between the at least two cylindrical insulators at the point where the cylindrical insulators are mechanically connected, wherein the said first and second shields comprise on each of their external surfaces at least one locally spun stop tab which stop tab does not modify the internal surface of the shield, said stop tab comprising one bearing point for the shield on the ring, for stopping the shield from moving in a direction parallel to the translational axis of the contacts in the enclosure.