| 摘要 |
PROBLEM TO BE SOLVED: To provide an instrument for measuring paper thickness that can automatically measure the thickness of a cut paper sheet being a sheet material during conveyance. SOLUTION: In a paper sheet conveying means having a fixed part and a movable part comprising a magnetic substance, wherein the movable part is rotatable at least along a paper sheet conveying direction, and wherein a space with respect to the fixed part is changeable in the movable part, the thickness of the paper sheet is measured as a magnetic field change generated between the fixed part and the movable part by sandwiching the paper sheet between the two magnetic substance parts. A nip part for the paper sheet in a paper sheet thickness measuring part is arranged in a position the same as a nip position of a roller for applying conveying force to the paper sheet, or just thereafter (in a downstream of the paper sheet conveying direction). COPYRIGHT: (C)2003,JPO
|
