公开(公告)号：US4378612A

公开(公告)日：1983-04-05

申请号：US243888

申请日：1981-03-16

Applicant: Bruce N. Beers

Inventor： Bruce N. Beers

IPC: E05F3/12 ,  E05F3/22

CPC classification number: E05F3/12 ,  E05F3/223 ,  E05Y2201/20 ,  E05Y2201/21 ,  E05Y2201/254 ,  E05Y2201/256 ,  E05Y2201/264 ,  E05Y2201/492 ,  E05Y2900/132 ,  Y10T16/27 ,  Y10T16/2804

Abstract: A delayed action door closer that delays a portion of the closing of a door for an adjustably determined period of time after the door has been moved to its fully open position. An interdependent hydraulic speed control system utilizes a delayed action speed control regulating valve which controls the closing speed of the door in the delayed action zone only, and whose speed cannot be adjusted faster than the main closing speed, but can be adjusted to provide a desired delay time prior to the door closing under normal regulation. The placement of the interdependent hydraulic system in the checking end of the closer allows the closer to have a fully adjustable independent backcheck.

Abstract translation: 延迟动作门关闭器，其在门已经移动到其完全打开位置之后延迟门的关闭的一部分可调节地确定的时间段。 相互依赖的液压速度控制系统使用延迟动作速度控制调节阀，其仅在延迟动作区域中控制门的关闭速度，并且其速度不能比主闭合速度更快地调节，而是可以调节以提供期望的 在正常调节之前关门的延迟时间。 相互依赖的液压系统在靠近检查端的位置允许更接近地具有完全可调的独立反向检查。