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SHEET PERFORATION DEVICE AND ITS CONTROL METHOD

  • US 20100037738A1
  • Filed: 08/15/2007
  • Published: 02/18/2010
  • Est. Priority Date: 08/24/2006
  • Status: Abandoned Application
First Claim
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1. A paper-sheet punching device that punches a hole through a predetermined paper-sheet, the paper-sheet punching device being provided with:

  • punching means including a motor for driving a reciprocatingly movable punching blade and punching two or more holes at one end of said paper-sheet; and

    control means for controlling said punching means, characterized in that said control means;

    sets divisional control intervals by separating a specific interval during a period of return path time of the punching blade into a plurality of intervals,sets a period of target passing time of the punching blade for each of said divisional control intervals or for every set-group of the divisional control intervals,measures a period of actual passing time of the punching blade for each of said divisional control intervals,compares the period of target passing time set for said divisional control interval and the period of measured passing time obtained by the actual measurement, andcontrols, based on a result of the comparison, drive or brake of said motor for the punching blade drive in a next interval of said divisional control intervals or in a next set-group of the divisional control intervals.

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