| 摘要 |
<p>A key (20) is formed with a blade (22) having six bits (30, 32, 34, 36, 38) and (40) formed along one edge of the blade. A shoulder (42) is formed on a trailing end (28) of blade (22) and is positioned to co-operate with a front face (82) of a plug (50) of a five-pin cylinder lock (46) to locate bits (30, 32, 34, 36 and 38) adjacent five respective sets of tumbler pins in the operation of the lock. Key (20) can also be used with a six-pin cylinder lock (110). Shoulder (42) is moved through a slot (130) in a front face (134) of a plug (114) of lock (110) and engages a stop surface (132) whereby bits (30, 32, 34, 36, 38 and 40) are properly positioned adjacent six respective sets of tumbler pins in the operation of the lock. <IMAGE></p> |
