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    • 3. 发明授权
    • Ring binder having attachable and detachable covers
    • 环形活页夹具有可拆卸和可拆卸的盖子
    • US09254705B2
    • 2016-02-09
    • US13404234
    • 2012-02-24
    • Brian Melgaard
    • Brian Melgaard
    • B42F13/00B42F13/38
    • B42F13/0006B42F13/002B42F13/38
    • A ring binder is provided that has attachable and detachable covers. The opposite edges of the binder's spine are hingedly attached to the proximal edges of respective front and back extensions which are relatively short in a direction perpendicular to the hinge axes. The extensions are sized to be substantially coextensive with the maximum projection of the binder's rings along an axis that is perpendicular to the inside surface of the spine, and the rings and associated structures are either mounted on the inside of the spine or inside of the back extension depending on the ring type. The front and back extensions function to extend the front and back covers to the hinges when the covers are attached to the extensions' distal edges. When so attached, an assembled ring binder having hinged covers is created that appears and functions as a conventional binder when used.
    • 提供具有可附接和可拆卸盖的环形活页夹。 粘合剂脊柱的相对边缘铰接地附接到相应的前延伸部分和后延伸部分的近侧边缘,其在垂直于铰链轴线的方向上相对较短。 延伸部的尺寸大体上与沿着垂直于脊柱内表面的轴线的粘合剂环的最大突起大体上共同延伸,并且环和相关联的结构或者安装在脊柱的内侧或背面的内部 延伸取决于环型。 前盖和后部延伸件用于在盖子连接到延伸部的远侧边缘时将前盖和后盖延伸到铰链。 当这样安装时,产生具有铰接盖的组装的环形活页夹,当使用时,其显示并且用作常规的粘合剂。