公开(公告)号：US3819214A

公开(公告)日：1974-06-25

申请号：US29234672

申请日：1972-09-26

Applicant: EMHART CORP

Inventor： HART L ,  SALONIA T ,  BERGEN G

IPC: E05B55/14 ,  E05B55/00 ,  E05B63/08 ,  E05C1/12

CPC classification number: E05B55/005 ,  Y10S292/38 ,  Y10T70/5504 ,  Y10T292/098 ,  Y10T292/0982 ,  Y10T292/099

Abstract: A cylindrical lock set including an operating unit having a cylindrical housing containing a unitary retractor frame of nonmetallic, low-friction material supporting a unitary metallic retractor slide. A latch unit releasably connected to the operating unit includes a case supporting a latch bolt releasably connected to the retractor slide by a female tailpiece. Coengageable cam surfaces on the tailpiece and on a deadlocking member carried by the latch bolt positively drive the deadlocking member to a deadlocking position relative to the case if an attempt is made to forcibly depress the latch bolt as by insertion of a tool between the outer edge of an associated door and strike plate. The operating unit also includes a locking mechanism for locking a rollback against rotation relative to the housing.

Abstract translation: 一种圆柱形锁定装置，其包括具有圆柱形壳体的操作单元，所述圆柱形壳体包含支撑单一金属牵开器滑块的非金属，低摩擦材料的整体牵开器框架。 可释放地连接到操作单元的闩锁单元包括支撑通过阴尾件可释放地连接到牵开器滑块的闩锁的壳体。 如果试图通过将工具插入到外边缘之间来强制地按压闩锁螺栓，则尾塞上的和由闩锁螺栓承载的死锁构件上的可共享凸轮表面相对于壳体正确地驱动死锁构件到死锁位置 相关的门和打击板。 操作单元还包括锁定机构，用于锁定相对于壳体旋转的回滚。