| 摘要 |
A knob assembly ( 22 ) for a door ( 20 ) includes a spindle ( 30 ) and a latch ( 108 ) in communication with the spindle ( 30 ) and extendable from an edge ( 132 ) of the door ( 20 ). An inner knob portion ( 36 ) is secured to the spindle ( 30 ), and an outer knob portion ( 38 ) faces the inner knob portion and freely rotates on the spindle ( 30 ). A lug ( 102, 104 ) projects from a second surface ( 106 ) of the outer knob portion ( 38 ) for engagement with a notch ( 58 ) formed in a first surface 54 of the inner knob portion ( 36 ). The outer knob portion ( 38 ) is selectively operable to positively engage the lug ( 102, 104 ) with the notch ( 58 ) for enabling rotation of the spindle ( 30 ) in response to rotation of the outer knob portion ( 38 ) to move the latch ( 108 ) from a normally latched position ( 110 ) to an unlatched position ( 146 ).
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