Electric punch
AssigneeKTF Corporation
InventorHiroyasu Hoshino
Life of this patent
Estimating the term…
Abstract
An electric punch for automatically punching holes in documents and the like is provided that allows the spacing between the holes to be selectively set at either 70 mm (U.S. standard) or 80 mm (European and Japanese standard) by forming a bend midway of the length of operating arms of respective perforating members so that forward and rearward portions of the operating arms are laterally offset in parallel by a prescribed distance and clamping the operating arms with two supports of different width, thereby enabling the punched hole spacing to be selectively changed by exchanging the left and right perforating members.
Claims11
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.
Dependencies are inferred from the claim text.