Sheet feeding or delivering – Feeding – With means to interrupt feeding
Patent
1991-07-16
1992-12-29
Schacher, Richard A.
Sheet feeding or delivering
Feeding
With means to interrupt feeding
271263, 271265, B65H 0000
Patent
active
051745623
ABSTRACT:
Two thickness detectors (5) each for outputting an electric signal representing the thickness of a paper sheet (B) passing thereby are arranged side by side in the width direction of a paper sheet conveyance path (3). Parameters such as paper sheet thickness, length, the existence of skew and, if skew exists, the skew angle (.theta.), are calculated based on the output signals from the thickness detectors. This facilitates detection of two or more overlapping bank notes among a wide variety of bank notes having different thicknesses or in case of a bank note having a significantly non-uniform thickness. The correct thickness of a paper sheet is also obtained at all times by using the skew angle and the reference length (W) of the paper sheet. This not only facilitates detection of two overlapping bank notes among a wide variety of bank notes having different thicknesses or in case of a bank note having a significantly non-uniform thickness, but also enables detection to be made very accurately. The number of paper sheets being conveyed past the thickness detectors at one time is determined based on the output signals of the thickness sensors. If the number of sheets has been reliably determined, this number of sheets is released even when sheets are being conveyed in an overlapping state and not just singly.
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Hase Takashi
Mizunaga Kazuhiro
Ohno Takashi
Tsuchitani Norio
Omron Tateisi Electronics Co.
Schacher Richard A,.
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