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    • 4. 发明申请
    • DOOR CLOSER SYSTEMS AND METHODS
    • 门关闭系统和方法
    • WO2009149587A1
    • 2009-12-17
    • PCT/CN2008/001147
    • 2008-06-13
    • TAIZHOU MOER HARDWARE MFG. CORP.ZHOU, Xinhua
    • ZHOU, Xinhua
    • E05F1/08E05F5/08E05D5/02
    • E05F1/105E05F3/02E05Y2900/132
    • A door closer device can be mounted to a door and a corresponding door frame to bias the door toward a closed position, and the device includes: a housing including a cylindrical body that at least partially defines a piston chamber; a piston arranged in the piston chamber; a piston rod coupled to the piston, a first spring and a second spring arranged in the housing to bias the piston toward a first end of the housing, the first and second springs being generally coaxial with the piston rod and being spaced apart from the piston rod, the first and second springs being spaced apart from one another during movement of the piston rod relative to the housing.
    • 闭门器装置可以安装到门和对应的门框上以将门偏向关闭位置,并且该装置包括:壳体,其包括至少部分地限定活塞室的圆柱体; 设置在所述活塞室中的活塞; 联接到所述活塞的活塞杆,布置在所述壳体中的第一弹簧和第二弹簧,以朝向所述壳体的第一端偏压所述活塞,所述第一和第二弹簧大致与所述活塞杆同轴并且与所述活塞间隔开 杆,在活塞杆相对于壳体运动期间,第一和第二弹簧彼此间隔开。