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    • 13. 发明授权
    • Ring binder
    • 活页夹
    • US5810499A
    • 1998-09-22
    • US659658
    • 1996-06-06
    • Chun Cheung Law
    • Chun Cheung Law
    • B42F13/22B42F13/26B42F13/00
    • B42F13/26
    • A ring binder to be fixed to an article includes a support for mounting a plurality of ring members thereon, and a control member movable to act on a sloping part of the upper surface of the support to cause the support to pivot and thereby close the ring members and movable along a sloped portion of the under surface of the support to cause the support to pivot and thereby open the ring members. The control member includes a cross bar member which acts on the sloped portion of the under surface of the support. In another embodiment, the support has a plurality of substantially longitudinal rib members on its upper surface.
    • 要固定到物品上的环形活页夹包括用于在其上安装多个环形构件的支撑件和可移动以作用在支撑件的上表面的倾斜部分上的控制构件,以使支撑件枢转并从而闭合环 构件并且可沿支撑件的下表面的倾斜部分移动,以使支撑件枢转并从而打开环构件。 控制构件包括作用在支撑件的下表面的倾斜部分上的横杆构件。 在另一个实施例中,支撑件在其上表面上具有多个基本上纵向的肋构件。