| 摘要 |
PROBLEM TO BE SOLVED: To prevent a key rotor and parts from unlocking and breaking respectively when the key rotor is forcibly rotated with a wrong key. SOLUTION: When a key rotor 14 is forcibly rotated with a wrong key, a sleeve 11 is turned together with the key rotor 14 through a tumbler 20. Then, due to the cam action of the cam face provided between the front section of the sliding member 38 provided in the guide groove 12 of the sleeve 11 and the recessed section 39 of a rotor case 10 in which the front section of the slide member 38 is inserted, the slide member 38 is shifted backward, and a torque transmission member 27 is also sifted backward together with the slide member 39, and the engagement of the torque transmission member 27 and the key rotor 14 is released, resulting in the idle running of the key rotor. |
