| 摘要 |
<p>A cylinder lock (100) having a first actuator assembly (102) and a second actuator assembly (106) positioned either side of a cam (132), in which the first and second actuator assemblies (102, 106) can selectively actuate the cam (132) by means of a clutch (142, 150) movable between two conditions and in which removal of the first actuator assembly (102) causes the clutch to move into a third, locked condition in which it is constrained. A cylinder lock (100) having a predetermined weakened area on the first actuator side of a cam.</p> |
