| 摘要 |
PROBLEM TO BE SOLVED: To provide a front door permitting easily attaching a double-layered glass with double-structure and facilitating the replacement work. SOLUTION: The front door 1 consists of a front cover 10 and a double-layered glass unit 8, and is fixed by engaging a fixing projection part 23 disposed in an outside part 15 of the double-layered glass unit 8 with an engagement part 22 disposed in an peripheral edge 21 on the rear surface of the front cover 10. The engagement part 22 and the fixing projection part 23 are detachably engaged with each other by making the double-layered glass unit 8 abut to an opening 9 and rotating them at a prescribed angle. COPYRIGHT: (C)2006,JPO&NCIPI
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