| 摘要 |
<p>A LOCK MECHANISM AND A SPRING AND CAM ASSEMBLY THEREFOR The lock mechanism has a spring and cam assembly provided for returning the lock plunger assembly of the mechanism from a locked to an unlocked position thereof. In addition, however, the spring and cam assembly carries an enlongated limb. When the lock plunger assembly is translated to a locked position, it forces the limb to extend from the spring and cam assembly to a disposition in which it blocks a knob catch which is carried in the outside spindle of the mechanism. Accordingly, for being blocked by the limb, the knob which is latchingly engaged by the catch, cannot be removed from the outside spindle whenever the mechanism is in its locked disposition. The spring and cam assembly comprises a compact unit which is slidably received in the outside spindle and confiningly supports the limb therewithin for extension therefrom into obstruction of the knob catch.</p> |
