发明名称 SYSTEM AND METHOD FOR ADJUSTING THE SPRING TORQUE OF A LOCK CHASSIS
摘要 A latch assembly configured to attach to a door includes one of a knob and a lever. The latch assembly further includes a latch extending from the door. A spindle is rotatable from a first position to a second position to move the latch from an extended position to a retracted position. A first biasing member is selectively operable to bias the spindle toward the first position. A second biasing member is selectively operable to bias the spindle toward the first position. An actuator is movable between a knob position in which only one of the first biasing member and the second biasing member biases the spindle toward the first position and a lever position in which both the first biasing member and the second biasing member cooperate to bias the spindle toward the first position.
申请公布号 US2013234453(A1) 申请公布日期 2013.09.12
申请号 US201213414808 申请日期 2012.03.08
申请人 MURPHY NATHANAEL S.;COLLINS DALE M.;BARKER KENTON H.;ROTH BRIAN K.;SCHLAGE LOCK COMPANY LLC 发明人 MURPHY NATHANAEL S.;COLLINS DALE M.;BARKER KENTON H.;ROTH BRIAN K.
分类号 E05C3/22;E05C3/14;E05C3/16 主分类号 E05C3/22
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