B - Operations – Transporting – 42 – F
Patent
B - Operations, Transporting
42
F
129/20
B42F 13/12 (2006.01) B42F 13/14 (2006.01) B42F 13/16 (2006.01)
Patent
CA 1096733
ABSTRACT OF THE DISCLOSURE A binding mechanism for a loose-leaf binder includes a support and at least two rings. Each ring is composed of three parts, a fixed, vertical, cylindrical receiver pin, the base of which is fast with the support and which is hollow at its upper free end, a fixed, vertical, cylindrical, tubuler hoop-guide, the base of which is fast with the support and which is mounted parallel to the receiver pin, and a movable hoop-shaped member presenting a first vertical arm, a second vertical arm parallel to the first arm and of shorter length, and the lower end of which is free, and a connecting portion connecting the upper ends of the first and second arms. The first vertical arm of the movable hoop is engaged in the hoop-guide and adapted to slide and pivot therein, and the free, lower end of the second arm is adapted to engage in the upper, hollow part of the receiver pin, wherein the lower end of the first arm of each movable hoop is provided with a control appendix, The mechanism further includes, in a number equal to the number of rings, fixed guide ramps fast with the support, provided to cooperate with the appendices for controlling the hoops and having a first lower vertical portion and a second upper hori- zontal portion. The mechanism also includes a member for control- ling the movement of the movable hoops, constituted by a movable slide adapted to slide with respect to the support, which slide is provided with control ramps inclined with respect to the horizontal and provided to cooperate with the appendices controlling the movable hoops, the control ramps being in a number equal to the number of rings of the binder.
298994
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