| 摘要 |
A cylinder lock has a cylindrical sleeve 17 in which lock grooves 18 are formed on an inner circumferential surface, a cylindrical cylinder 21 on which a plurality of tumbler insertion holes 23 are formed, a plurality of tumblers 27 which are engaged with the lock grooves 18 in an advanced position and which are retracted and disengaged from the lock grooves 18 with insertion of an authorized key, a rear rotor 32 of which an at least portion is turnably placed in the cylinder 21 and in which a container portion 35 is formed in the portion placed in the cylinder 21 , a connecting member 40 which is placed in the container portion 35 of the rear rotor 32 and which is movable in radial directions between a connected position in which the rear rotor 32 and the cylinder 21 are connected to each other and a non-connected position, and a connection releasing member 44 which is provided so as to be positioned on an outer circumference of the connecting member 40 and so as to be movable in radial directions relative to the sleeve 17 and which travels radially and presses and moves the connecting member 40 to the non-connected position when the sleeve 17 that receives a turning force of the cylinder 21 by virtue of engagement of the tumblers 27 turns relative to the holder 10.
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