| 摘要 |
A tumbler pin lock system comprises a lock mechanism and a key. The lock mechanism has an outer tubular casing mounted to a frame of a computer or similar electrical device. The tubular casing has an eccentric through hole for rotatably receiving a locking spindle. The locking spindle includes a driver pin sleeve having a set of bore holes, each for receiving a driver pin. A rotating shaft protrudes from a first side of the driver pin sleeve, and a protrusion with a keyway slot protrudes from a second side of the driver pin sleeve. A tumbler sleeve is provided on the rotating shaft and is fixed to the tubular casing. The tumbler sleeve has a distributed annular set of blind holes, each for receiving a tumbler spring and a tumbler pin, which are alignable with the bore holes in the driver pin sleeve. The key comprises a flattened key handle and a cylindrical portion. A set of annularly disposed semi-cylindrical slots are formed on an outer periphery of a first end of the cylindrical portion to engage with corresponding driver pins disposed in the bore holes in the driver sleeve. A key guide lug is formed inside the set of the semi-cylindrical slots to engage with the keyway slot to turn the rotating shaft relative to the tumbler sleeve to provide a locking or unlocking function. A cutout portion is formed in a middle portion of the cylindrical portion.
|
