| 摘要 |
A cylinder lock consists of a cylinder core (2), a lock housing (3) and tumbler pins (1). Waisted portions (5) are formed on the side of the tumbler pins (1). A side bar (10) and lugs (11) in a groove (8) are extended axially in a peripheral part of the cylinder core (2), springs (6) are on the end opposite to the key insertion end of the pins (1), other springs are provided on both sides of the side bar (10), there is a recess (9) at a point corresponding to the groove (8) in the lock housing (3), at least two waisted portions (5) are formed on the pins (1), the waisted portions (5) at least consists of one waisted portion (5) and one waisted portion (4) which is shallower than the portion (5).
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