| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylinder lock simplifying a constitution and facilitating manufacture and, at the same time, having the difficulty of unfairly unlocking the cylinder lock by a third person. SOLUTION: For the cylinder lock 10 including an outside cylinder 1, first and second inside cylinders 2 and 3 circumferentially coming into contact with the outside cylinder 1, at the same time, forming first and second key ways 17 and 19 in them and a connecting spring 4 lying between the first and second inside cylinders 2 and 3, driver holes 13 passing through the circumferential surfaces of the inside cylinders 2 and 3 and the inside circumferential surface of the outside cylinder 1, drivers 6 stored in the driver holes 13 and capable of engaging with the inside cylinders 2 and 3 and outside cylinder 1, engaging pins 5 coming into contact with the drivers 6 and pushing springs 7 energizing the drivers 6 toward the engaging pins 5, a key 21 energizing the pins 5 to the outside cylinder 1 side against energizing force of the pushing springs 7 when the key 21 is inserted in the first and second key ways 17 and 19 and positioning the drivers 6 to the outside cylinder 1 side, the connecting spring 4 energizes the adjoining inside cylinders 2 and 3 to the circumferential direction each other, the first and second key ways 17 and 19 formed in the inside cylinders 2 and 3 are energized to positions to be slipt.
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