| 摘要 |
PROBLEM TO BE SOLVED: To reduce a mechanical strength requested for a key. SOLUTION: In this lock device 10, a regular key 12R is inserted into a key insertion hole 48. When a plunger member 42 is pressed to an operating position, only the plunger member 42 is started to move from a standby position to the operating position. By this, an operating lever 92 positioned at the locked position is moved to an unlock position, and a lock mechanism brought into the locked state by the operating lever 92 is brought into a locked state. When an illegal key 12I is inserted into the key insertion hole 48 and the plunger member 42 is pressed to the operating position, the plunger member 42 and a sleeve member 22 are moved integrally to the operating position, and the operating lever 92 at the locked position is not moved. Consequently, the body part of the lock mechanism is kept locked by the operating lever 92. COPYRIGHT: (C)2007,JPO&INPIT
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