公开(公告)号：US3777423A

公开(公告)日：1973-12-11

申请号：US3777423D

申请日：1972-01-07

Applicant: RIXSON INC

Inventor： COULTER G ,  PEARSALL D

IPC: E05F15/20 ,  A62C2/06 ,  A62C2/12 ,  E05B47/00 ,  E05C17/56 ,  E05F1/00 ,  E05F3/22

CPC classification number: A62C2/12 ,  E05F1/006 ,  E05F3/222 ,  E05F15/72 ,  E05Y2201/462 ,  E05Y2201/484 ,  E05Y2800/42 ,  E05Y2900/132 ,  Y10T16/22

Abstract: A surface-mounted door holder-closer responsive to the products of combustion passing through multiple passageways formed in a holder-closer housing cover, a holder-closer assembly frame, and a static shield which is an integral part of an ionization chamber module. The ionization chamber module is insertable into the holder-closer frame with the frame and static shield not only defining the passageways, but also isolating the ion chamber from spurious static charges generated within the housing which would render a false alarm or false emergency door release. The frame also houses the principal components of the holder-closer, namely, a closer spring, a dashpot, a latching lever assembly, and an electromagnet responsive to modulated current flow in the ionization chamber to effect alarm or emergency release of the latching lever to close an otherwise open door. The integrated detector-holder-closer is advantageously and simply mounted on the lintel or header of a door frame.

Abstract translation: 响应于通过形成在更靠近的壳体盖中的多个通道的燃烧产物的表面安装门保持器 - 闭合器，保持器 - 关闭组件框架和作为电离室模块的组成部分的静电屏蔽件。 电离室模块可与框架和框架固定在靠近框架中，不仅限定了通道，而且隔离离子室与壳体内产生的虚假警报或虚假紧急门释放的静电荷。 框架还容纳保持器 - 关闭器的主要部件，即靠近弹簧，缓冲器，闭锁杆组件和响应于电离室中的调制电流的电磁体，以实现闩锁杆的报警或紧急释放 关闭另外打开的门。 集成的检测器保持器 - 靠近件有利且简单地安装在门框架的楣或头部上。