| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thickness detection device capable of accurately detecting thicknesses of paper sheets, and a detection roller. <P>SOLUTION: The thickness detection device includes a reference roller, a detection roller and a sensor. The reference roller has a first rotary shaft as the center of rotation. The detection roller is pressed by the reference roller, and uses as the center of rotation, a second rotary shaft provided in parallel with the first rotary shaft. The sensor detects the displacement of the detection roller relative to the second rotary shaft. The detection roller has a roller inner periphery fixed to the second rotary shaft and a roller outer periphery supported on the roller inner periphery and having a cylindrical shape. The roller inner periphery contains an elastic material whose damping coefficient tanδ is 0.2 or larger and 0.6 or smaller. <P>COPYRIGHT: (C)2013,JPO&INPIT |
