| 摘要 |
<p>PURPOSE:To promote controllability by using the first and second grooves to unlock the first cylinder lock, and using the third and fourth grooves to unlock the second cylinder lock. CONSTITUTION:A key is inserted in a tumbler 14 of the first cylinder lock in a state of locking, and the first groove 33a and the second groove 33b are brought into contact with an interlocking section 14b of the tumbler 14. A detecting section 16a of a side bar 16 is interlocked with a groove 14a of the tumbler 14 to separate the bar 16 from an interlocking channel 11a of a case 11, and a key cylinder is rotated to unlock. After that, the key is inserted in the second cylinder lock, and the third groove 33c and the fourth groove 33d are brought into contact with the interlocking section of the tumbler to unlock. According to the constitution, controllability can be promoted.</p> |
