A binder mechanism is shown and described herein. The binder mechanism may include a base, first and second ring bases pivotally coupled to the base, first and second ring portions fixed with the ring bases, at least one pin attached with the first and second ring bases, a slide operatively engaged with the base and operatively engaged with the at least one pin, the slide selectively and axially positionable relative to the base, and an actuator operatively engaged with the slide, where the actuator is configured to selectively and axially position the slide whereby the slide positions the at least one pin to pivot the first and second ring bases away from one another to disengage the first and second ring portions.

A binder mechanism is shown and described herein. The binder mechanism may include a base, first and second ring bases pivotally coupled to the base, first and second ring portions fixed with the ring bases, at least one pin attached with the first and second ring bases, a slide operatively engaged with the base and operatively engaged with the at least one pin, the slide selectively and axially positionable relative to the base, and an actuator operatively engaged with the slide, where the actuator is configured to selectively and axially position the slide whereby the slide positions the at least one pin to pivot the first and second ring bases away from one another to disengage the first and second ring portions.

A single-detent binder for a file folder has a housing, one pair of baseplates, ring shaped components, a control component, a pull rod, rotary locking pieces and an intermediate junction component. The control component, intermediate junction component, pull rod and rotary locking pieces are connected in series. When the control component rotates, the rotary locking pieces are triggered to rotate in the trough of the first baseplate based on the mechanical principle of connecting rod, thus performing the locking/unlocking function. When the binder is closed, the baffle plates on the second baseplate hinder the rotary locking pieces from rotation, thus generating a clamping force. After the baffle plates and rotary locking pieces work jointly to close the binder, the ring shaped components generate a scrambling force, thus enhancing the locking effect and preventing the single-detent binder from opening unexpectedly.

A single-detent binder for a file folder has a housing, one pair of baseplates, ring shaped components, a control component, a pull rod, rotary locking pieces and an intermediate junction component. The control component, intermediate junction component, pull rod and rotary locking pieces are connected in series. When the control component rotates, the rotary locking pieces are triggered to rotate in the trough of the first baseplate based on the mechanical principle of connecting rod, thus performing the locking/unlocking function. When the binder is closed, the baffle plates on the second baseplate hinder the rotary locking pieces from rotation, thus generating a clamping force. After the baffle plates and rotary locking pieces work jointly to close the binder, the ring shaped components generate a scrambling force, thus enhancing the locking effect and preventing the single-detent binder from opening unexpectedly.

A ring mechanism for retaining loose-leaf pages includes a housing and ring members for holding loose-leaf pages that are moveable relative to the housing between an open and closed position. An actuation system moves the ring members and includes hinge plates pivotally mounted on the housing and an actuator actuating pivoting movement of the hinge plates. A travel bar of the actuation system is moveable by the actuator between a locked position blocking pivoting movement of the hinge plates and an unlocked position allowing pivoting movement of the hinge plates. The actuation system is adapted to deform while moving the travel bar from the locked position toward the unlocked position to delay the pivoting motion of the hinge plates from the movement of the actuator.

A ring mechanism has a housing and rings for holding loose-leaf pages. Pivoting hinge plates are supported in the housing. Each ring includes a pair of ring members, at least one of which is mounted on a hinge plate and movable to open and close the rings. A travel bar carries a plurality of locking elements or wedges. The travel bar is secured to the housing in a manner that limits vertical movement of the travel bar while allowing the travel bar to translate between a locked position in which opening of the rings is blocked and an open position in which the rings are open. The travel bar is biased to remain in the locked position when it is in the locked position. The travel bar is free of forces tending to move the travel bar to the locked position when the travel bar is in the open position.

A single-detent binder for a file folder has a housing, one pair of baseplates, ring shaped components, a control component, a pull rod, rotary locking pieces and an intermediate junction component. The control component, intermediate junction component, pull rod and rotary locking pieces are connected in series. When the control component rotates, the rotary locking pieces are triggered to rotate in the trough of the first baseplate based on the mechanical principle of connecting rod, thus performing the locking/unlocking function. When the binder is closed, the baffle plates on the second baseplate hinder the rotary locking pieces from rotation, thus generating a clamping force. After the baffle plates and rotary locking pieces work jointly to close the binder, the ring shaped components generate a scrambling force, thus enhancing the locking effect and preventing the single-detent binder from opening unexpectedly.

A ring mechanism has an elongate body made of a moldable polymeric material and rings for holding loose-leaf pages. Each ring includes a first ring member and a second ring member. The first ring members are movable relative to the housing and the second ring members between a closed position and an open position. At least one ring member for each ring is a separately formed ring member and comprises a ring portion and an anchor connected to the ring portion. The at least one separately formed ring member is formed separately from the body. The anchor of the separately formed ring member is secured to the body for pivoting movement relative to the body. The anchor can be received in a receptacle in the body adapted to receive the anchor.

A ring mechanism has an elongate body made of a moldable polymeric material and rings for holding loose-leaf pages. Each ring includes a first ring member and a second ring member. The first ring members are movable relative to the housing and the second ring members between a closed position and an open position. At least one ring member for each ring is a separately formed ring member and comprises a ring portion and an anchor connected to the ring portion. The at least one separately formed ring member is formed separately from the body. The anchor of the separately formed ring member is secured to the body for pivoting movement relative to the body. The anchor can be received in a receptacle in the body adapted to receive the anchor.

A loose-leaf folder device includes a pair of main components. First half retaining rings and second half retaining rings are arranged on the housing of the main components. Two main components can be combined with or separated from each other. When combined together, the first half retaining ring can be combined with the first half retaining ring of the other main component to form a closed retaining ring to retain loose-leaf paper. When separated from each other, the main component along with loose-leaf paper retained by it can be separated from the other main component to form two independent parts. The second half retaining ring on the housing can rotate and can form a closed retaining ring with the corresponding first half retaining ring to retain loose-leaf paper.