Abstract: A binding device (10) is provided which can be performed opening/closing of binding rings smoothly; comprising a plurality of openable/closable binding rings (12, 14), a holding member (16), an operating member (18), and an opening/closing member (40); the operating member comprises a pair of operating pieces (30, 32); base portions of one and the other of the binding rings are secured to the operating pieces respectively; the binding device has a button member (80) in the vicinity of one and/or the other end portion of the operating member; the button member has a first and a second arm portion (800, 820) for moving the one of the operating pieces; and the first and second arm portions are respectively configured to move the operating piece (30) to the first arm portion and to move the operating piece (32) to the opposite side to the second arm portion.

Abstract: Provided is a binder in which a binder is provided with a binding member having a pressing portion pressing a material to be bound, an operation member operated so as to pivotally rotate to an open state and a hold state, and a base member the binder is further provided with an engagement body, a projection portion caused to engage with the engagement body, and a supporting portion provided with the engagement body, the supporting portion is configured so as to bend toward the projection portion side and bend in a direction of separating from the projection portion and the locked state is formed by engagement between the engagement body and the projection portion.

Abstract: A binding device (10) is provided which can be performed opening/closing of binding rings smoothly; comprising a plurality of openable/closable binding rings (12, 14), a holding member (16), an operating member (18), and an opening/closing member (40); the operating member comprises a pair of operating pieces (30, 32); base portions of one and the other of the binding rings are secured to the operating pieces respectively; the binding device has a button member (80) in the vicinity of one and/or the other end portion of the operating member; the button member has a first and a second arm portion (800, 820) for moving the one of the operating pieces; and the first and second arm portions are respectively configured to move the operating piece (30) to the first arm portion and to move the operating piece (32) to the opposite side to the second arm portion.

Abstract: The present invention provides a binder where operations for locking and for unlocking are easily understood; and wherein a binder 20 is provided with a binding member 70 having a pressing portion 72 pressing a material to be bound, an operation member 60 operated so as to pivotally rotate to an open state and a hold state, and a base member 22 the binder 20 is further provided with an engagement body 120, a projection portion 100 caused to engage with the engagement body 120, and a supporting portion 180 provided with the engagement body 120, the supporting portion 180 is configured so as to bend toward the projection portion 100 side and bend in a direction of separating from the projection portion 100 and the locked state is formed by engagement between the engagement body 120 and the projection portion 100.

Abstract: A binding device includes binding rod portions, coupling portions for coupling a plurality of the binding rod portions, and an axis portion serving as a center upon opening/closing of binding rods. The coupling portions have lower portions to which the axis portion is provided at a position close to base portions of the binding rods so that a leaf bound at the binding rod portions can be flipped along the binding rods and flipped through 360 degrees and leaves can make contact with each other with the axis portion sandwiched therebetween. The axis portion includes a shaft portion and receiving portions for the shaft portion. The receiving portions are provided to the coupling portions the shaft portion is disposed therein.

Abstract: [Object] To provide a binding device having binding rods easily opened and closed for easy leaf replacement.

Abstract: A file includes a binding body which is superimposed with a plurality of binding sheets, a curved retaining portion which is curved in a direction in which the binding body extends when the cover is opened, a curved subsidiary portion arranged to fix a back portion thereof in a desired configuration. The binding body is provided adjacent to the curved retaining portion and has an arch-shape in a direction away from the inner side of a spine portion and the curved retaining portion is connected with a width less than a width of the spine portion to the inner side of the curved subsidiary portion at the outer side of the curved retaining portion to enable the end edge adjacently provided on the binding body to curve.

Abstract: [Object] To provide a binding device easily manufactured and having binding rods easily opened and closed for easy leaf replacement.

Abstract: A binding device for files and binders includes rings to be inserted into binding holes of an object to be bound which are openably and closeably secured to a base plate so as to be opened and closed by an opening-closing mechanism including a rotationally movable lever. In the binding device, a first ring member and a second ring member defining the binding rings are configured such that they are interlocked with the opening-closing mechanism including the lever so as to be opened and closed about respective pivot portions provided in the lower end thereof by rotationally moving the lever. The base plate is provided with a lever shaft receiver for pivotally supporting the lever of the opening-closing mechanism, and the lever shaft receiver is formed by punching the base plate and bending the punched portion upwardly.

Abstract: A binding device for files and binders in which rings to be inserted into binding holes of an object to be bound are openably and closeably secured to a base plate so as to be opened and closed by an opening-closing mechanism including a rotationally movable lever. In the binding device, a first ring member and a second ring member are configured such that they are interlocked with the opening-closing mechanism including the lever so as to be opened and closed about respective pivot portions and provided in the lower end thereof by rotationally moving the lever. In addition, the first ring member and the second ring member are secured in an opened state when opened, and the lever is secured such that the first ring member and the second ring member are maintained in the opened state.

Abstract: The file includes a binding body which is superimposed with a plurality of binding sheets, a curved retaining portion which is curved toward the direction of the pocket sheets as the binding body extending when opened the cover, a curved subsidiary portion which fixes its back into an optional form; the binding body is adjacently provided to the curved retaining portion by forming an arch-shape toward the direction of a front cover portion and back cover portion extending from the inner side of the spine portion and the curved retaining portion is connected with the width shorter than the width of the spine portion to the inner side of the curved subsidiary portion at the outer side of the curved retaining portion to enable the end edge adjacently provided on the binding body to curve.

Abstract: A binding device for files and binders includes rings to be inserted into binding holes of an object to be bound which are openably and closeably secured to a base plate so as to be opened and closed by an opening-closing mechanism including a rotationally movable lever. In the binding device, a first ring member and a second ring member defining the binding rings are configured such that they are interlocked with the opening-closing mechanism including the lever so as to be opened and closed about respective pivot portions provided in the lower end thereof by rotationally moving the lever. The base plate is provided with a lever shaft receiver for pivotally supporting the lever of the opening-closing mechanism, and the lever shaft receiver is formed by punching the base plate and bending the punched portion upwardly.

Abstract: A binding device for files and binders in which rings to be inserted into binding holes of an object to be bound are openably and closeably secured to a base plate so as to be opened and closed by an opening-closing mechanism including a rotationally movable lever. In the binding device, a first ring member and a second ring member are configured such that they are interlocked with the opening-closing mechanism including the lever so as to be opened and closed about respective pivot portions and provided in the lower end thereof by rotationally moving the lever. In addition, the first ring member and the second ring member are secured in an opened state when opened, and the lever is secured such that the first ring member and the second ring member are maintained in the opened state.