| 摘要 |
PROBLEM TO BE SOLVED: To open a door body by a usual operation method even when there is a large pressure difference between its surface and back, and also remove restrictions on the door appearance design. SOLUTION: The door body 11 is provided with an operation part for opening and closing the door body 11 and a rod 52 that advances and retreats interlockingly when operating the operation part. The door frame 12 has a first opening 13a formed on the end face of the advancing and retreating rod 52 of the door body 11, and a second opening 13b formed at an inward position of the door body 11. Within the door frame 12, is provided a closing plate 57 to block the first opening 13a. The closing plate 57 moves following the advance of the rod 52 and open the first opening 13a. COPYRIGHT: (C)2007,JPO&INPIT
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