Abstract: A plate clip including a seat plate having a reel and a base plate, a pressing frame is pressed on the base plate by a spring, and an open handle. The open handle forming a lever is disposed on the pressing frame, and its fulcrum is at the reel. When a user opens the plate clip to clamp papers, he can press down the open handle to lift the pressing frame easily by the lever function, thus the finger of the user would not be injured accidentally.

Abstract: The present invention relates to a plate clip comprising a seat plate having a reel and a base plate, a pressing frame pressed on the base plate by a spring, and an open handle. The open handle forming a lever is disposed on the pressing frame, and its fulcrum is at the reel. When a user opens the plate clip to clamp papers, he can press down the open handle to lift the pressing frame easily by the lever function, thus the finger of the user would not be injured accidentally.

Abstract: A punch comprises a connecting bar and two punching means. The two punching means are mounted rotatably to the connecting bar. The punch according to the invention may punch two or three holes on sheets of paper as desired by rotating the connecting bar and one punching means since two punching means are mounted rotatably to the connecting bar.

Abstract: A clasp for use in fastening loose sheets of paper together in a binder and like usages having three pins for entry in holes in the papers and other items to be fastened together, thereby effecting a triple fastening.

Abstract: There is disclosed a ring binder (100) including a ring binder mechanism (106) secured to a cover, wherein the ring binder mechanism (106) includes a pair of pivoting plates to which half-rings (112) are mounted, and the pivoting plates are movable between a first configuration in which the half-rings (112) are open, and a second configuration in which the half-rings (112) are closed, and the ring binder (100) includes a holder (114, 202) for releasably engaging with a compact disk (210).

Abstract: A ring binder comprising a substantially rigid curved upper casing structure supporting a pair of plate, and the plates are pivotally movable between a first position in which the angle between the upper surfaces of the plates is less than 180.degree., and a second position in which the angle between the upper surfaces of the plates is more than 180.degree., a lock to lock the pair of plates and triggers or a pair of half-ring members to operate the lock, and the lock acts at a first location on the ring binder and the triggers or pair of half-ring members act at a second location on the ring binder, the first location being longitudinally distal on the ring binder from said second location.

Abstract: A ring binder to be fixed to an article has a support for mounting a plurality of ring members thereon and a control member for opening and closing the ring binder. The support has a pair of support members pivotally supported by a holder joining the outer edges of the support members together, whereby the inner edges of the support members move away from each other on pivoting. The holder cooperates with the control member in order to support the support members. The ring binder may also include one or more securing elements for holding the support members by extending across from the outer edges of the support members and cooperating with the control member, and fixing elements below and connected to the support members.

Abstract: A ring binder to be fixed to an article includes a support for mounting a plurality of ring members thereon, and a control member movable to act on a sloping part of the upper surface of the support to cause the support to pivot and thereby close the ring members and movable along a sloped portion of the under surface of the support to cause the support to pivot and thereby open the ring members. The control member includes a cross bar member which acts on the sloped portion of the under surface of the support. In another embodiment, the support has a plurality of substantially longitudinal rib members on its upper surface.

Abstract: A ring binder to be fixed to an article includes a support for mounting a plurality of ring members thereon, with a control member to open and close the ring binder. The support is cooperable solely with the control member to lock the ring members in closed position, the support being provided with a hooked portion to lock the ring members in closed position. In another embodiment, the support has a pair of support members disengageable during opening of the ring binder, one support member having at least one engagement member directly cooperable with the other support member during closing of the ring binder. The ring binder further includes a control member movable along a sloped portion of the under surface of the support to cause the support to pivot and thereby open the ring members, the sloped portion being provided on the underneath of at least one of the support members, approximately along the centerline.

Abstract: A ring binder adapted to be fixed to an article includes a support for mounting a plurality of ring members thereon, and a control member movable along a sloped portion on the under surface of the support to cause the support to pivot and thereby open the ring members. The sloped portion on the under surface of the support is provided on at least one of an inturned inner edge of the support and a protrusion extending from the under surface of the support.

Abstract: A ring binder to be fixed to an article includes supports for mounting a plurality of ring members thereon, and a control member movable to open and lock and to close and lock the ring members, each in one operation, the controlling member including a crossbar member extending to outer edge regions of the support means. In another embodiment, the control members are slidably movable to lock the ring members in open position and in closed position, and the support comprises a pair of support members supported by holding elements joining outer edges of the pair of support members together, the holding elements cooperating with the control member means in order to support the supports.