| 摘要 |
<p>PURPOSE:To certainly detect the unproper duplicate transporting of a thin plate and lock the thin plate having unproper overlap between a detecting arm and a backup member so as to be able to exclude its feeding certainly by simply forming the device in the caption with the detecting arm, the backup member and a detecting sensor. CONSTITUTION:When a thin plate 1 is in a state of unproper transporting, the thin plate 1 gets into space between the arc-shaped detecting surface 18 of a detecting arm 11 and the backup surface 19 of a backup member 12 so as to oscillate the detecting arm 11 from its detection waiting position. By this oscillation, the arc-shaped detecting surface 18 of the detecting arm 11 comes near the backup surface 19 of the backup member 12 so that an interval between both members 11, 12 becomes narrower. As a result, the thin plate 1 is pressedly put between the detecting arm 11 and the backup member 12 and the detecting arm 11 oscillates as far as a detecting position where the transporting of the thin plate 1 is locked so as to stop here and actuate a detecting sensor 13 at the same time so that what the thin plate 1 is locked is told.</p> |
