公开(公告)号：US09428940B1

公开(公告)日：2016-08-30

申请号：US14731957

申请日：2015-06-05

申请人： Clarence E. Patrick

发明人： Clarence E. Patrick

IPC分类号： E05C1/06 ,  E05C1/12 ,  E05B63/14 ,  E05C1/08 ,  E05C1/16 ,  E05C1/00 ,  E05C1/02 ,  E05C1/04 ,  E05C1/10 ,  E05C9/00 ,  E05C9/10 ,  E05B65/10

CPC分类号： E05B63/14 ,  E05C1/08 ,  E05C1/16 ,  E05C9/002 ,  E05C9/04 ,  E05C9/20

摘要： A door latch for retaining a door to a door frame or floor at a plurality of locations adjacent a respective edge of the door includes a central latch disposed within the door and biased in an extended position, and at least one of an upper latch disposed within the door and biased in an extended position and a lower latch disposed within the door and biased in an extended position. The door latch further includes a lock set that is operable for simultaneously moving the central latch and the at least one of the upper latch and the lower latch from the extended position to a retracted position so as to release the door from the door frame. The door latch includes a rotatable central shaft operably coupled with a cam, and a connecting arm operably coupled with the cam and attached to an actuator rod. The actuator rod is connected to an inner sleeve moveably disposed within an outer housing of the upper latch or the lower latch. Movement of the actuator rod creates a tension force that is greater than the biasing force exerted on the inner sleeve to move the inner sleeve from the extended position to the retracted position.

摘要翻译： 用于在邻近门的相应边缘的多个位置处将门保持到门框或地板的门闩包括设置在门内并被偏置在延伸位置的中心闩锁，并且至少一个上闩锁布置在 门并被偏置在延伸位置，下部闩锁设置在门内并被偏置在延伸位置。 门闩还包括锁定组件，其可操作以将中间闩锁和上部闩锁和下部闩锁中的至少一个从伸出位置移动到缩回位置，以将门从门框上释放。 门闩包括与凸轮可操作地连接的可旋转的中心轴，以及与凸轮可操作地联接并连接到致动器杆的连接臂。 致动器杆连接到可动地设置在上部闩锁或下部闩锁的外部壳体内的内部套筒。 致动器杆的运动产生的张力大于施加在内套筒上的偏压力，以使内套筒从延伸位置移动到缩回位置。