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    • 7. 发明授权
    • Door closer
    • 闭门器
    • US4130913A
    • 1978-12-26
    • US825591
    • 1977-08-18
    • William G. Rodseth
    • William G. Rodseth
    • E05F3/22E05F3/00
    • E05F3/221E05F2003/228E05Y2900/132Y10T16/27
    • A door closer used with a door frame and a door panel has a hold-open device for holding the closer in any full or intermediate door-open position. The door panel is free for some manual operation independently of the closer because of a lost-motion, rotary connection between the door frame and door panel. This involves a closer shaft having a thread therein or thereon engaged by a threaded member on the closer arm so that when the member and shaft rotate relative to each other, there is also relative axial translation between them. When the hold-open device is released from some set open position after some manual, door panel closing motion, the shaft revolves, causing some originally abutting but separated facing surfaces on the member and the shaft axially to approach each other and finally and again to abut, thus taking out the lost motion and causing the closer to move the door panel from substantially fully open or any intermediate open position into fully closed position.
    • 与门框和门板一起使用的门关闭装置具有用于将更近者保持在任何完全或中间门打开位置的保持开启装置。 由于门框和门板之间的运动不正常,旋转连接,门板可自由地进行一些手动操作,而不需要更近的操作。 这涉及一个较近的轴,其中具有一个线或其上的螺纹构件接合在更靠近的臂上,使得当构件和轴相对于彼此旋转时,它们之间也具有相对的轴向平移。 当一些手动,门板关闭运动后,保持开启装置从一些设定的打开位置释放时,轴旋转,导致构件和轴上的一些原始邻接但分离的面向轴向彼此接近,最后再次 抵靠,从而消除空动,并使门板从基本上完全打开或任何中间打开位置移动到完全关闭位置。