Abstract: A ring binder to be fixed to an article includes a support for mounting a plurality of rings thereon. The ring binder has an exposed upper surface to which the rings are mounted, the surface being defined by an upper surface of the support. A control member opens and closes the binder. A securement member which holds the support and secures the support to an article is situated below the support in regions of limited longitudinal extent adjacent opposite ends of the binder. The control member acts at a first location, on an undersurface of the support, to open the binder, and at a second location, situated at an end region of the binder, to close the binder, the first and second locations being at different locations along the length of the binder. In another embodiment, inner edges of the support members are arranged to engage each other on closing of the binder and to disengage on opening of the binder.

Abstract: A ring binder comprisinga substantially rigid upper structure,a lower structure supported by the upper structure andat least two pairs of ring members mounted to the lower structure,the at least two pairs of ring members comprising a first type of ring member and a second type of ring member andthe lower structure being pivotally movable between a first position in which the at least two pairs of ring members are closed and locked, and a second position in which the at least two pairs of ring members are open and unlocked,wherein when a force is applied to the first type of ring member of the at least two pairs of ring members, the ring binder is unlocked and the lower structure is movable from the first position to the second position in order to open all the pairs of ring members, andwherein when a force is applied to the second type of ring member of the at least two pairs of ring members, the lower structure is locked against movement from the first position to the second position.

Abstract: A ring binder is disclosed as comprising a substantially rigid curved upper plate supporting a pair of lower plates to which at least two pairs of half-ring members are mounted, the pair of lower plates being pivotally movable between a first position in which the half-ring members are closed, and a second position in which the half-ring members are open, and a lock to lock at least one of the pairs of half-ring members whilst closed, and the lock is supported by the curved upper plate between the two pairs of half-ring members.