| 摘要 |
PROBLEM TO BE SOLVED: To reduce the disposing space of a lock member, to facilitate the attaching and detaching work of a glass unit to/from a front frame and to surely fix the glass unit. SOLUTION: At the respective corner parts of a set frame on the back side of the front frame, abutting pieces 39 and 51 to which the fixing plate 31 of the glass unit 14 are to be abutted and lock members 41 and 53 are disposed. The lock members 41 and 53 are turned between a release position for allowing the attachment and detachment of the glass unit 14 and a lock position for clamping the fixing plate 31 between the abutting pieces 39 and 51 and fixing the glass unit 14. On the respective corner parts of the set frame, a first lower locking recessed part 47 and a first upper locking recessed part 56 with which the first locking projection part 49 of the lock members 41 and 53 facing the release position is to be engaged and a second lower locking recessed part 48 and a second upper locking recessed part 57 with which the first locking recessed part 49 of the lock members 41 and 53 facing the lock position is to be engaged are provided. COPYRIGHT: (C)2008,JPO&INPIT
|
