| 摘要 |
<p>A rack (20) mounted within the housing (12) of a mechanical lock translates. The rack, which has a rectangular cross section, has teeth (22). A toothed pawl (120) pivots within the housing between a locked and unlocked position. The teeth on the pawl engage the rack teeth when the pawl is locked. The pawl has a window (62) that receives a cam (80). The cam has a first surface that engages a surface of the window when the cam is in the locked position. In that position, the cam prevents movement of the pawl teeth away from the teeth on the rack. A second surface of the cam pushes against a different surface of the window when the cam is in the unlocked position. In that position, the cam disengages the pawl teeth from the rack teeth. The window has a chamfered surface to move the pawl to its locked position.</p> |
