THICKNESS DETECTING DEVICE OF PAPER SHEET, PAPER SHEET PROCESSING DEVICE, AND PAPER SHEET HANDLING DEVICE

摘要

PROBLEM TO BE SOLVED: To surely detect an abnormal paper money with a partially different thickness such as a tape-attached paper money to which a tape is attached for mending into an authentic paper money, in a thickness detecting device of paper sheet that determines the presence or absence of multi feed, authenticity, and unlawful act of a paper money and the like by detecting the thickness of paper sheet such as an inserted paper money.;SOLUTION: The thickness detecting device includes: a fixed roller 10; a swing member 15 axially supported by a swing axis 3; a thickness detecting roller 20 rotatably axially supported by the swing member and approaching to and separating from the circumferential surface of the fixed roller accompanied by the swing of the swing member; a compression spring 5 elastically biasing the swing member at all times toward the approaching direction of the thickness detecting roller to the fixed roller; a displacement detecting section 25 detecting the variation of the distance to the swing member; and a vibration damping member 30 fixed to a fixed member or the swing member so as to separate from the swing member or the fixed member when the thickness detecting roller separates from the fixed roller, and meanwhile, attenuating the repulsive force at the time when the thickness detecting roller returns toward the fixed roller by coming into contact with the swing member or the fixed member.;COPYRIGHT: (C)2011,JPO&INPIT