| 摘要 |
<p>An electric door closure comprises a rotation lever connected to a first rotation shaft of a latch plate to rotate therewith. An electric door actuator is mounted in a lock proper. An arm member is pivotally connected to the lock proper through a second rotation shaft which is angled relative to the first rotation shaft. The arm member is pivoted by an electric actuator between the arm member being pivoted by an electric actuator between an operative position and an inoperative position. A connecting lever pivotally connects the arm member through a third rotation shaft which extends in parallel with the second rotation shaft. The connecting lever is movable between an engaging position, wherein, when the arm member is pivoted from the inoperative position to the operative position, a press portion is formed on the connecting lever to push an edge of the rotation lever to pivot the latch plate from the half-latched position to the full-latched position and a canceling position wherein the press portion is separated from the rotation lever in a direction perpendicular to a major surface of the rotation lever. The press portion is in abutment with the edge of the rotation lever to suppress the connecting lever from moving toward the engaging position, when the latch plate is in a zone between the open position and just before the half-latch position. An open lever is provided which moves the connecting lever and the locking plate to the respective canceling positions when actuated in a certain direction. A biasing spring is provided for biasing the connecting lever toward the engaging position.</p> |
