Patent ID: 7353685
Filing Date: 2008-04-08
Classification: B26D,B26F,B30B

Abstract:
1. An apparatus for punching, stamping and/or shaping flat elements ( 29 ) comprising a base body ( 1 ) with a table ( 18 ) and a support ( 26 ) for the flat element ( 29 ), and a base plate ( 17 ) which supports a tool punch ( 24 ) and which to carry out the working process, can be moved by means of a drive ( 4 , 5 ), towards the support ( 26 ) into a working station (II) for engagement of the tool punch ( 24 ) with the support ( 26 ) and away from the support ( 26 ), characterised in that coupled between the drive ( 4 , 5 ) and the base plate ( 17 ) are transmission means ( 9 , 7 ; 35 ; 43 ; 46 ) having at least one long rotary lever ( 9 ) which is pivotable about a stationery pivot point ( 11 , 45 ) fixed to the base body, which rotary lever ( 9 ) moves the base plate ( 17 ) from a rest position (I) in which the tool punch ( 24 ) is out of engagement with the support ( 26 ), without a pressure build-up, to shortly before the working position (II), and then over a short distance while producing a high pressure between the base plate ( 17 ) and the flat element ( 29 ) into the working positions (III) and upon further activity of the drive ( 4 , 5 ) move the base plate ( 17 ) into the rest position (I, III) again in the reverse direction of movement, wherein at its one end the long rotary lever ( 9 ) is coupled by way of an elbow lever joint ( 13 ) to an end of a short pivotal lever ( 7 ) whose other end is coupled to the base plate ( 17 ) by way of an elbow lever bearing ( 15 ) and wherein the long rotary lever ( 9 ) is longer than the short pivotal lever ( 14 ), characterized in that the drive ( 4 , 5 ) is mounted to the other end of the long rotary lever ( 9 ) in such a way that the drive ( 4 , 5 ) is disposed axially outside from the pivot point ( 11 ).