Abstract: A binding device is provided which allows reduction in profile. A binding device 10 includes: a holding member 16 having a length which allows a plurality of openable-closable binding rings 12 and 14 to be disposed with a spacing therebetween; an operating member 18 secured inside the holding member 16; and an opening/closing member 40. The operating member 18 includes a pair of operating pieces 30 and 32 on which the binding rings 12 and 14 are secured. For housing the opening/closing member 40, an opening/closing member housing portion 36 is provided in a manner such as to be recessed from a reverse side, opposite to a surface on which the binding rings 12 and 14 are secured, towards the surface side.

Abstract: A ring mechanism for retaining loose-leaf pages comprises a housing, hinge plates, and ring members mounted on the hinge plates for retaining pages on the mechanism. An actuating lever is pivotally mounted on the housing for engaging the hinge plates and pivoting them to selectively move the ring members between an open position and a closed position. A travel bar is operatively connected to the lever for selective movement between a position in which locking elements of the travel bar block the pivoting movement of the hinge plates and a position in which the travel bar allows the hinge plates to pivot. The lever is configured to deform when pivoting the hinge plates to close the ring members to delay movement of the travel bar and locking elements to the blocking position from the onset of pivoting motion of the hinge plates.

Abstract: A rivet assembly includes a tube with first and second ends and a spiral thread formed on an inner surface extending from the first end to a first axial extent, and a bolt formed to engage the tube thread to a second axial extent less than the length of the tube.

Abstract: A binding assembly includes first and second sheet retaining members which are releasably attached to a base member by first and second latching mechanisms. The sheet retaining members include a pair of side members which support a pair of pins and tubes onto which sheets of paper or other materials are placed. Each of the side members includes an engaging rod which is receivable in a channel provided in the base member to retain the sheet retaining members to the base member. Each of the latching mechanisms are independently pivotable about an axis perpendicular to the pins and tubes from a retaining position where the sheet retaining members are constrained to the base member, to a releasing position where the sheet retaining members may be detached from the base member.

Abstract: A fastener (30) for fastening a paper retaining binder mechanism (18) to the spine (16) of a binder (10) and remaining entirely concealed from an outer surface of the binder. The fastener includes a circular anchor plate (38) and a vertically extending attachment post or eyelet (34). The post is a truncated cone of uniform taper. The anchor plate includes a circumferential reinforcing lip (48). The fastener is secured to the spine by a number of spurs (50) uniformly spaced about the circumference of the anchor plate. The eyelet extends perpendicular of the anchor plate and the binder mechanism seats on the eyelet by an opening (26, 28). The upper end of the eyelet is then deformed about the opening to secure the binder mechanism in place.

Abstract: A ring binder (10) includes a ring metal (18) securable to a spine portion (16) of the binder. A spur eyelet (30) used for this purpose includes a post (32) one end (34) of which attaches to the ring metal. A plate (40) is formed at the other end of the post. Radiating outwardly from the underside of the plate are a plurality of concentrically formed spurs (50). Each spur has barbs (56) formed on an outer end (54) of the spur. To attach the ring metal to the spine, the spurs are pushed into the body of the spine. Thereafter, the barbs keep the eyelet from being pulled away from the body of the spine thereby preventing the ring metal from separating from the binder.

Abstract: A fastener for fastening a paper retaining binder mechanism to an inner surface of a binder while remaining entirely concealed from an outer surface of the binder. The fastener includes an anchor plate and a post. The anchor plate defines first and second major surfaces. The first major surface is in confronting relation fastened to an inner surface of the binder. The post extends directly away from the second major surface of the anchor plate and serves to secure the binder mechanism to the inner surface of the binder. Another aspect of the present invention relates to a method for fastening an apertured paper retaining binder mechanism to the binder in a manner concealing the fasteners from an outer surface of the binder.

Abstract: A holder for a plurality of overhead projection system transparencies includes a ruler-like bar provided with suction cups for attaching the bar to the stage of the projector and U-shaped arms for engaging the holes provided along one edge of each transparency. The rear legs of the arms are rotatably received in bosses provided along the rear edge of the bar and the front legs releasably engage posts at the front edge of the bar.

Abstract: The binder mechanism for loose-leaf binders or file folders comprises a flat, oblong support plate on which are disposed at a standardized mutual distance at least two binder yokes, each consisting of a fixed yoke rod and pivotable yoke part, which is provided with a crank arm. The pivotable yoke parts are operable jointly because they are interconnected by a coupling rod disposed in the support plate. The support plate is made of plastic and has a cavity which is open at its underside and in which the crank arms and the coupling rod are accommodated. The privotable yoke parts are mounted in mounting bushings integrally molded to the likewise plastic crank arms mounted in hollow cylindrical bearing lugs or bearing holes of the support plate. The coupling rod and/or at least one of the crank arms are associated with a releasable detent or locking device which arrests the movable yoke parts jointly in their pivoted position forming the yoke shape.

Abstract: A binder assembly which is openable in the opposite direction, wherein it includes a turnable member having binding rods and a turnable member having binding pipes adapted to receive said binding rods, said turnable members being separately and detachably provided on both sides of a bottom plate fixed to a back cover of a file in such a manner that they are turnable with respect to said bottom plate.

Abstract: The invention relates to a device for holding sheets provided with perforations, preferably endless perforations, in a folder. The holding device comprises a base body portion (6) and a holding loop member (7) with two limbs (12,16). One limb (12) can be rotationally fitted into the base body portion (6) through the perforations in the sheets which are disposed one upon the other, whereas the other limb (16) can be resiliently retained in the base body portion (6) by turning the loop member (7).

Abstract: A claw binder features the provision of groups of pairs of claw halves, which vary in size and are adapted to be removably/interchangeably fixed to a base of the binder in order to selectively accommodate the binder to support stacks of sheet material of substantially different thicknesses.

Abstract: The present invention relates to a binding mechanism for loose-leaf binder comprising, mounted on a support, at least two rings each constituted by a fixed vertical receiver pin, the upper end of which is hollow, a fixed, vertical, tubular hoop-guide and a movable hoop-shaped member engaged, in closed position, in the upper end of the pin and slidable vertically in the hoop-guide and pivoting in a plane parallel to the plane of the leaves, to come to open position. The simultaneous control of the movement of the hoops is effected by a slide provided with ramps, the lower ends of the hoops being engaged both in fixed ramps fast with the support and in the ramps for controlling the slide. The invention is particularly applicable to binders or folders for perforated leaves.