| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock device having high protection performance to forcing open from outside. SOLUTION: This lock device is provided on either a door 21 or a doorway 20, and includes a locking bar 14, the tip of which is inserted and removed in and from a receiving hole 22 provided in the opposite position of the other according to the locking/unlocking operation of a lock 11 with a key 23. The locking bar 14 is provided with an engagement hole 14a, and a locking projection 34 is fixed to the inside of the receiving hole 22 and the vicinity of the engagement hole 14a of the locking bar 14 put in the locked state, and projected toward the engagement hole 14a in opening the door. COPYRIGHT: (C)2004,JPO
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