Patent ID: 7176399
Filing Date: 2007-02-13
Classification: H01H

Abstract:
1. Safety switch unit ( 1 ) for electrically controlled machines for use in combination with the actual control elements of the machine control system in a handheld application or manual operation, with at least one operating element ( 6 , 7 ) which is displaced relative to a mounting frame ( 8 ) in accordance with the switching function desired by a user, which is designed to change the switch status of at least one electric switch element ( 14 , 15 ), the safety switch unit ( 1 ) having at least one switch position which is maintained only as long as a sufficiently high operating force is applied to the displaceable operating elements ( 6 , 7 ), wherein two operating elements ( 6 , 7 ) for at least one respective electric switch element ( 14 , 15 ) can be displaced in translation or rotation to a limited degree relative to the mounting frame ( 8 ) about a respective pivot axis ( 11 , 12 ) of two pivot bearings ( 9 , 10 ) and provide a substantially translating or straight operating movement of the safety switch unit ( 1 ) by means of a push button unit ( 2 ) which is disposed in front of the two operating elements ( 6 , 7 ) by reference to the operating direction—arrow ( 13 )—of the safety switch unit ( 1 ), each of the two operating elements being mounted to pivot on the respective pivot axis at their remote end regions ( 30 , 31 ), and their facing ends engaging or overlapping.