Patent ID: 11878893
Assignee: TOSHIBA TEC KABUSHIKI KAISHA
Field: Handling (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 0:
1. A paper-length detection device, comprising:
a bottom plate, a paper sheet being placed on the bottom plate, the paper sheet having a first edge and a second edge opposed to the first edge;
a first regulatory member that is provided to be capable of moving relative to the bottom plate in a direction in which the first edge and the second edge face each other, and is in contact with the first edge;
a second regulatory member that is in contact with the second edge;
a magnet that rotates while a direction from an S pole and an N pole thereof is parallel to the bottom plate;
a moving mechanism that
supports the magnet, and
causes the magnet to rotate in accordance with movement of the first regulatory member closer to or further from the second regulatory member;

an angle sensor that faces the magnet and outputs a signal of a voltage value corresponding to a magnetic field that periodically varies in accordance with the rotation of the magnet, the voltage value corresponding to an absolute angle of the magnet, an absolute value of a length of the paper sheet being output based on the absolute angle.