| 摘要 |
PURPOSE:To hold a tray plate without causing position shift. CONSTITUTION:A movable pawl 21 is provided turnably at the upper part of a fixed pawl 18, and a pin 23 is fitted to this movable pawl 21. The movable pawl 21 is energized in a closing direction by providing a compression coil spring 26 between both pawls 18, 21. Also, an air cylinder 27 is provided at the fixed pawl 18, and the movable pawl 21 is made to turn in the closing direction by forcing its rod 27a to move in advance. When the movable pawl 21 is turned in the closing direction, the pin 23 is put into the hole 14 of a tray plate 11, and as a result, the tray plate 11 is held without casing position shift. |
