| 摘要 |
<p>PURPOSE:To simplify structure by moving the position of a pin in a locking device and enabling the opening operation of the door-opening handle of a lower metallic door only at the time of the state in which an upper glass door is not locked. CONSTITUTION:When an upper glass door is brought to the locking state, the pin 28 of an intermediate link 26 is positioned in a swing-idling groove 41 and swing-idled even when the door-opening handle 5 of a lower metallic door 4 is door-opening operated and a rod 39 is drawn and a rotating lever 37 and an opening lever 32 are turned. Consequently, a lever 34 for the right and a lever 33 for the left cannot be revolved, and the metallic door 4 cannot be opened. When the upper glass door is brought to the state of non-locking, the pin 28 is moved from the swing-idling groove 41 to a swing-non-idling location 42, the door-opening handle 5 is worked and the rod 39 is pulled, the rotary lever 37 and the opening lever 32 are rotated successively and the left and right rods 34, 33 are drawn, and the lower metallic door 4 is opened. Accordingly, freight containment volume may be ensured widely.</p> |
