Patent ID: 6782786
Filing Date: 2004-08-31
Classification: B26D,B26F,Y10T

Abstract:
An electric punch comprising:a drive section; left and right perforating members installed on opposite sides of the drive section each including a perforating blade and an operating arm; punch holes for passage of the perforating members; and at least one chad catcher for collecting punchings produced by the perforating members; the electric punch being adapted to punch two holes in a stack of sheets inserted between the perforating members and the punch holes, wherein: a bend is formed midway of the length of the operating arm of each perforating member so that forward and rearward portions of the operating arm are laterally offset in parallel by a prescribed distance and the operating arms are clamped with two supports of different width, thereby enabling punched hole spacing to be selectively set at 70 mm (U.S. standard) and 80 mm (European and Japanese standard) by exchanging the left perforating member and the right perforating member.