Abstract: A ring binder has housing including a central portion and lateral sides. Hinge plates are held between the lateral sides of the housing. Each of multiple rings includes at least one ring member mounted for movement with the hinge plates between closed and open positions. An actuator is mounted for pivotal movement relative to the housing and engageable with the hinge plates for opening rings. In one embodiment, the housing defines a stop engaged by the actuator upon arrival of the actuator at a terminal position when the actuator has opened the rings. The engagement between the surface of the actuator and the stop limits pivoting movement of the actuator relative to the housing in the opening direction beyond the terminal position. In another embodiment, the actuator is constructed for quicker response of the binder to movement of the actuator to open the rings.

Abstract: A ring binder mechanism has a resilient polymeric housing. The housing has a central portion and lateral sides extending downwardly along either side of the central portion. A metal ring support is supported between the lateral sides for movement relative to the housing. Each of a plurality of rings includes a first ring member mounted on the ring support for movement therewith to open and close the rings. The housing applies a spring force biasing the ring support toward the open position when the first ring member is proximate its open position and biasing the ring support to the closed position when the first ring member is proximate its closed position. The housing spring force is the only spring force applied to the ring support that moves the ring support.

Abstract: A ring binder has housing including a central portion and lateral sides. Hinge plates are held between the lateral sides of the housing. Each of multiple rings includes at least one ring member mounted for movement with the hinge plates between closed and open positions. An actuator is mounted for pivotal movement relative to the housing and engageable with the hinge plates for opening rings. In one embodiment, the housing defines a stop engaged by the actuator upon arrival of the actuator at a terminal position when the actuator has opened the rings. The engagement between the surface of the actuator and the stop limits pivoting movement of the actuator relative to the housing in the opening direction beyond the terminal position. In another embodiment, the actuator is constructed for quicker response of the binder to movement of the actuator to open the rings.

Abstract: A ring binder has housing including a central portion and lateral sides. Hinge plates are held between the lateral sides of the housing. Each of multiple rings includes at least one ring member mounted for movement with the hinge plates between closed and open positions. The mechanism has an actuator mounted for pivotal movement relative to the housing and engageable with the hinge plates for opening rings. In one embodiment, the housing defines a stop engaged by the actuator upon arrival of the actuator at a terminal position when the actuator has opened the rings. The engagement between the surface of the actuator and the stop limits pivoting movement of the actuator relative to the housing in the opening direction beyond the terminal position. In another embodiment, the actuator is constructed for quicker response of the binder to movement of the actuator to open the rings.

Abstract: A ring binder has housing including a central portion and lateral sides. Hinge plates are held between the lateral sides of the housing. Each of multiple rings includes at least one ring member mounted for movement with the hinge plates between closed and open positions. The mechanism has an actuator mounted for pivotal movement relative to the housing and engageable with the hinge plates for opening rings. In one embodiment, the housing defines a stop engaged by the actuator upon arrival of the actuator at a terminal position when the actuator has opened the rings. The engagement between the surface of the actuator and the stop limits pivoting movement of the actuator relative to the housing in the opening direction beyond the terminal position. In another embodiment, the actuator is constructed for quicker response of the binder to movement of the actuator to open the rings.

Abstract: A ring binder mechanism has an elongate housing constructed of a polymeric material. The housing has a central portion and lateral sides extending downwardly along either side thereof. A ring support is disposed between the lateral sides and is supported thereby for movement relative to the housing. Each of a plurality of rings includes first and second ring members. The first ring member is mounted on the ring support for movement between a closed position and an open position. The mechanism includes a control structure movable relative to the housing. The control structure is adapted to releasably lock the first member in the closed position by blocking movement of the ring support. The control structure comprises a travel bar moveable in translation relative to the housing. The travel bar includes a locking element for engagement with the ring support to block movement of the ring support.

Abstract: A ring binder mechanism has a resilient polymeric housing. The housing has a central portion and lateral sides extending downwardly along either side of the central portion. A metal ring support is supported between the lateral sides for movement relative to the housing. Each of a plurality of rings includes a first ring member mounted on the ring support for movement therewith to open and close the rings. The housing applies a spring force biasing the ring support toward the open position when the first ring member is proximate its open position and biasing the ring support to the closed position when the first ring member is proximate its closed position. The housing spring force is the only spring force applied to the ring support that moves the ring support.

Abstract: A ring binder mechanism has an elongate housing including an upper, plastic housing element and a lower housing element underlying the upper housing element. A ring support is disposed between the upper and lower housing elements and supported by the housing for movement relative to the housing. Rings mounted on the ring support include a first ring member and a second ring member. The first ring member is moveable relative to the second ring member between a closed position and an opened position. A control structure is movable relative to the housing for producing the movement of the ring supports that brings the ring members to the closed position. The control structure is adapted to releasably lock the ring members in the closed position by blocking movement of the ring support that moves the ring members to the opened position.