| 摘要 |
PROBLEM TO BE SOLVED: To provide a window part structure capable of preventing the occurrence of the situation in which front surface and rear surface plates of a panel body are separated and levitated from a window frame due to rise of temperature of flame when fire occurs in a window part of the panel body and having excellent flameproofing property. SOLUTION: In this window part structure, the window part provided by passing through the panel body is partitioned by the window frame provided internally between the front surface plate and the rear surface plate, and the window part is composed of a depth face part formed by bending fringe parts of the front surface and rear surface plates to oppose to each other in the depth direction and a locking piece provided at a tip of the depth face part and bent and locked in the window frame. COPYRIGHT: (C)2009,JPO&INPIT
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