Door closer position monitor

作者： Thomas R. Lasier , William L. Downey

DOI:

关键词: Swing 、 High security 、 Computer security 、 Mechanism (engineering) 、 Engineering

摘要: A door closer mechanism that controls the opening and closing swing of a door, in conjunction with an integral switch electrically signals when security closed has been violated by partially door. The device is especially important useful high installations including detention facilities features secure field adjustment feature to accommodate positioning rattle.