| 摘要 |
PURPOSE:To prevent the generation of an unnecessary electric signal due to the vibration of a mobile body, by resctricting the movement of the mobile body through the generation of magnetic attraction between the mobile body and a restricting means. CONSTITUTION:When a sheet member is not detected with a detecting plate 1, a detection lever 2 is rotated in a reverse direction with a spring 4, a folding part 9 made of a magnetic substance such as iron and a magnet 10 are in contact with each other to form contacts 2B and 5. In this case, the folding part 9 is attracted with the magnet 10 with the magnetic operation in the same direction as a drawing direction of the spring 4. When the detection plate 1 detects a sheet member, one end 2A of the lever 2 is pressed downward, the magnet 10 and the part 9 are separated and a detection signal for the sheet member is generated. When the sheet member is finished for passing, the lever 2 is returned to the home position with the spring 4. |
