Patent ID: 6025568
Filing Date: 2000-02-15
Classification: H01H

Abstract:
An electric switch for use in hand-held tools that are operated with a direct current, said switch comprising:a contact system including a fixed contact and a movable contact;an actuating member which acts upon the movable contact and triggers a switching operation when the contact system is switched between an ON and an OFF position;means for extinguishing an arc which occurs between the fixed contact and the movable contact during a switching operation, said extinguishing means includes a shield; anda movement transmission member connected to the movable contact and to the shield thereby linking or coupling the shield to the movable contact so that movement of the shield corresponds to the movement of the movable contact and the shield is forced to move with the movable contact, and during the switching operation of the movable contact from the ON to the OFF position, the shield is moved into the region between the fixed contact and the movable contact as a result of the forced coupling and, during the switching operation of the movable contact from the OFF to the ON position, the shield is moved from the region between the fixed contact and the movable contact, due to the forced coupling, so that the movable contact in the ON position rests against the fixed contact.