| 摘要 |
PROBLEM TO BE SOLVED: To simplify an anti-fraud structure for preventing a restraining member from being fraudulently moved from a restraint position to a release position without using a lock.SOLUTION: Restraining mechanisms 7; 8 and restrained members 10; 11 are fitted to each other to restrain a front frame 3 to an outer frame 2 so as not to be opened and closed, when the opened front frame 3 is artificially closed toward the outer frame 2 around a hinge 4. In this state, a key is artificially inserted to the key hole 17 of a cylinder key 16 in a key mechanism 9 from the front, and the key is artificially rotated rightward by 90 degrees, for example, from the insertion state. The cylinder key 16 vertically moves slide members 18; 19 in the lock mechanism 9. The slide members 18; 19 move the restraining mechanisms 7, 8 to release the engagement between the restraining mechanisms 7, 8 and the restrained members 10; 11. The front frame 3 is released so as to be openable/closable with respect to the outer frame 2. The released front frame 3 is opened toward a side separating from the outer frame 2 around the hinge 4 by an artificial operation. |
