Abstract: A desk leaf base has a base formed of a trapezoidal tubular body in a trapezoidal shape in a side view, closed from a bottom surface to a certain height in both sides, and opened in an upper portion therefrom. An inclined front wall of the tubular body is removed from one side to the other side, in a range from the height to a higher height lower than a top surface. A binder mounted along an elongated top surface of the base has an elongated body and rings. The elongated body is mounted along the top surface of the base with an approximately same width as the top surface. The rings are mounted on the body and capable of opening and closing. Each ring includes linear portions that protrude from the body inclining upward on front and back sides when closing.

Abstract: A ring binder mechanism for retaining loose-leaf pages securely holds closed ring members together to prevent inadvertent loss of pages retained by the mechanism. The mechanism comprises a housing supporting two hinge plates for pivoting motion to open and close paired ring members mounted on the plates. Free ends of the paired ring members have interlocking configurations that securely join together when the ring members close. The configurations prevent misalignment of the closed ring members in all directions transverse to longitudinal centerlines of the ring members. The mechanism also includes locking elements that interact with the hinge plates to block their pivoting motion when the ring members are closed. This holds the free ends of the closed paired ring members together so that the interlocking configurations of the ring members remain interengaged.

Abstract: A binder includes a back part disposed between ring parts, each of the ring parts being openable and closable. to constitute a binder. A penetration hole is formed at a portion of the ring parts intersecting with the back part, thereby allowing the binder to expand and contract to a certain degree in a longitudinal direction thereof.

Abstract: A binder for releasably retaining loose-leaves. The binder has a front cover that lies flatly beneath its back cover when the binder is open 360 degrees. The rings of the binder can rotate around an edge of the flatly-folded cover to enable loose-leaves to lie flat above and below the cover. The binder also has a skeleton with a minimal cross-section spine which may be partially or completely embedded in a cover and rotates in relation to parallel front and back covers when the binder is open 360 degrees. The front cover, middle cover and back cover are connected in a way so that they do not interfere with the rotation of the rings. Mechanisms to open and close the rings of the skeleton to allow addition or removal of loose-leafs, and ring shapes to optimize or stabilize the capacity of the binder during operation are also disclosed.

Abstract: A ring binder mechanism having at least one pair of half-ring members that are movable between a first position, wherein the half-ring members are closed, and a second position, wherein the half-ring members are open, and at least one generally tubular member to facilitate alignment and securement of the at least one pair of half ring members when moved from the second, open position to the first, closed position.

Abstract: A display system includes a binder, a header, a retaining bracket and an extension assembly. The binder includes a plate, a plurality of sheets and an attachment assembly. The plate has a front surface, a rear surface and an edge. The attachment assembly secure the sheets at the front surface of the plate and maintains and displays information. The header includes indicia and is adapted to be positioned in a retracted position where the header is substantially obscured from view by the plate and an extended position where the header extends substantially from the edge of the plate. The retaining bracket is attached to the rear surface of the plate. The extension assembly is adapted to engage the retaining bracket to maintain the header in the extended position.

Abstract: A binding tool for documents or the like is provided which is capable of suppressing the height of protruded portions from a surface of a base portion thereby to expand a space thereabove, and which is also easy to manufacture and assemble. The binding tool includes a base portion (2) formed of a metal plate, rings (3) that are each mounted on the base portion so as to be selectively changed into a closed ring posture to bind documents or the like and an opened ring posture to open a part of a closed ring for insertion of the documents or the like, and a switching mechanism (5) that is mounted on the base portion and includes a switching lever (4) for switching the rings between the closed ring posture and the opened ring posture. The switching lever has a base end (41) and a free end (42), and a cam member (6) is provided on the base end of the switching member for adjusting the degree of opening/closing of each of the rings according to a rotated position of the free end.

Abstract: The present invention is a system for attaching rigid holders together to form stacks of rigid holders. The present invention relates particularly to stacks of one or more rigid holders for containers holding compact discs and DVDs. The attachment system of the present invention allows for simple and efficient connection between individual rigid holders. Mechanical binding clips are inserted into cutouts on the spine region of rigid holders. The binding clips are flexed to fit within an opening and then un-flexed to lock the rigid holders and binding clips together. Male and female details allow for a secure hold. Extensions within the cutouts have barbs that fit over parts of the binding clips.

Abstract: A loose-leaf binder has a back, a binder made of a flexible material and attached to the back and two end plugs mounted respectively in ends of the back. The back has two tracks, two side slots and a middle slot. The binder has multiple open rings having two ends. Each plug has two side tines and a middle tine. A notebook with the loose-leaf papers can be easily attached to or detached from the loose-leaf binder by attaching or detaching the open rings of the binder to punched holes in the notebook simultaneously.

Abstract: For ring binders of externally fitted types it is an essential requirement that they do not interfere with the turning of loose leaves. Conventional binders have had too broad backbone plates supporting binder rings to permit smooth turning of the leaves. The invention provides a loose-leaf binder a loose-leaf binder comprising an elongate first backbone plate having a plurality of first binder half-rings formed at given intervals upright along its outer edge, and a second backbone plate having a plurality of second binder half-rings formed at given intervals upright along its edge opposite to that of the first backbone plate. The first and second backbone plates are adapted to be combined to close the first and second half-rings to form complete binder rings.

Abstract: A binder mechanism comprises a pair of prong plates pivotally connected by a retainer spring to toggle between a first raised position and a second lowered position. The prong plates include a plurality of ring segments affixed to the prong plates that are capable of forming loops. A cam mechanism is used to toggle the prong plates between the raised and lowered positions causing the ring segments to open or to close to form loops. The cam mechanism is preferably a slider located above the prong plates, the slider having ramps inserted through recesses between the prong plates. Preferably, the recesses are located adjacent to where the ring segments are attached to the prong plates. Cleats may hold the parts of the binder mechanism together and keep the mechanism attached to a binder assembly. Preferably, the retainer spring is in the form of a top spring covering both the slider and prong plates.

Abstract: A binder ring mechanism (16) has a plurality of binder rings (18a-18c) for holding sheets of paper. Each binder ring includes a fixed section (20) and a movable section (22). All of the movable binder ring sections are commonly mounted on a bolt (36). A lever arm (52) is attached to one end of the bolt for movement of the lever arm to move the bolt and the binder ring sections mounted on the bolt. The bolt is movably mounted on a cover piece (24) for both rotational and sliding movement of the bolt. A recess (58) is formed in an endwall (56) of the cover piece and the lever arm includes a latch member (60) received in the recess to latch the lever arm in place when the binder rings are closed so to prevent inadvertent movement of the lever arm which might cause the binder rings to open. In addition, the cover piece has flaps (82, 84) extending diagonally outwardly therefrom for storing writing instruments in a ring binder (10) in which the binder ring mechanism is installed.

Abstract: A binder for storage of sheet materials, particularly large sheet materials, such as maps, blueprints and the like, in a flat configuration. An elongated frame element, which supports the sheet materials along a marginal edge in a hanging orientation, is provided with a pivoting hand grip mounted on the frame and movable between vertical and horizontal orientations. The hand grip, of which there may be more than one, enables the binder and its contents to be conveniently removed from a storage rack and re-positioned for use.

Abstract: The present invention concerns suspended files of the kind in which the two open longitudinal edges of the files are held in reinforcing sheet-metal channels and extend beyond the transverse ends of the file where they are cut on their underside to form integral suspension elements by which said files are suspended in vertical position from rods or other suspension means one behind the other in a drawer or filing cabinet or the like.