Patent ID: 6927353
Filing Date: 2005-08-09
Classification: H01H

Abstract:
1. A device switch ( 2 ) for an electric hand-held tool, such as one of a screw drill and drilling machine, with a control device ( 50 ) arranged in a switch housing ( 4 ), a trigger ( 6 ) being movably supported at the switch housing ( 4 ), the rotational speed of a driving motor ( 52 ) of the hand-held tool being controlled by the control device ( 50 ) depending on the position of the trigger ( 6 ) relative to the switch housing ( 4 ), and a pressure increasing arrangement ( 10 ) with a contacting area ( 14 ) on a contacting element ( 12 ) that makes pressing contact with a contact region ( 26 ) of a mechanical resistance element ( 24 ) in a trigger pressure position of the trigger ( 6 ) between a zero load position and a full load position, the displacement resistance of the trigger ( 6 ) being increased by the mechanical resistance element ( 24 ), wherein the contact region ( 26 ) is arranged outside the switch housing ( 4 ).