| 摘要 |
<p>The lock-set for a door has a latch bolt (14) assembly with a latch bolt (12) movable between a partially extended latching, a fully extended dead bolt position and a retracted position. A spring (391) biases the bolt toward its dead bolt position. A spindle (58) extends through the latch in a direction transverse w.r.t. that the bolt movement. - A hub (268) connects the spindle (48) to the bolt to move the latter upon rotation of the spindle. A stop (388) holds the latch bolt in its latching position when the door is open. A plunger causes the latch bolt to move to its dead bolt position in response to closing of the door.</p> |
