Abstract: A ring binder to be fixed to an article include a support for mounting a plurality of ring members thereon. The ring binder has an exposed upper surface to which the ring members are mounted, the exposed upper surface being defined by upper surfaces of the support. A control member to open and close the ring binder are provided. The support includes a lock co-operable with the control member, the control member including a cross bar member and the lock including a protrusion on the under surface of the support, the cross bar member acting upon the protrusion, whereby closing force applied to the ring members when in open position will not close the ring members. In another embodiment, securement element provided to hold the support and secure the support to an article are situated below the support in regions of limited longitudinal extent adjacent opposite ends of the ring binder.

Abstract: 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.

Abstract: A ring binder adapted to be fixed to an article includes a support for mounting a plurality of ring members thereon, and a control member movable along a sloped portion on the under surface of the support to cause the support to pivot and thereby open the ring members. The sloped portion on the under surface of the support is provided on at least one of an inturned inner edge of the support and a protrusion extending from the under surface of the support.