| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylinder lock set of high operational reliability. ! SOLUTION: The cylinder lock set comprises a cylinder lock formed by inserting a plug 3 having a tumbler pin 1 and an intermediate tumbler 2 into a cylinder case 4 and energizing the tumbler pin in the plug center direction via the intermediate tumbler by a drive pin 5 installed in the cylinder case in an initial rotation position of the plug, a normal use key 7A and an emergency key 7B, and the normal use key is provided with an unlocking recessed part 10 capable of rotating the plug by making a boundary between the intermediate tumbler and the drive pin correspond to a rotation boundary between the plug and the cylinder case when inserted into the plug, and the emergency key is provided with an unlocking recessed part for making a scooping part of the intermediate tumbler 2 correspond to the rotation boundary between the plug and the cylinder case, respectively, and when returning the plug to the initial rotation posit |
