LOOSE LEAF BINDER

Abstract: The present invention is formed by two main parts (1) and (2) which comprise two laminated rods (3) and (4) provided, spacedly and from one of its longitudinal edges, with a a number of semi-rings (5) and (6). Parts (1) and (2) are linked to each other by means of rectangular rings (8) or by means of a wire (7). Being the binder at the closed position, rods (3) and (4) are juxtaposed and the semi-rings (5) and (6) form a number of closed rings retaining perforated leaves or sheets. Being the binder at the open position, rods (3) and (4) may rotate between each other by up to 180 DEG , the terminations of semi-rings (5) and (6) being offset from each other, so as to permit removal or placement of leaves or sheets. The binder is provided with a removable rod (9) which adjusts itself to rods (3) and (4), these being juxtaposed, so as to hold the binder in the closed position.

Description: LOOSELEAFBINDER The present invention relates to a loose leaf binder, the sheets or leaves of which may be removed or replaced in a sim- pie and rapid manner. The accompanying drawings illustrate two different binders, eac disclosing in relation to each other variations as to their com ponents specific form. There is, however, no difference as to the functioning principl of both binders, which make up a same inventive concept. Description of the drawings: Figure 1 is a top view of a binder in closed position. Figure 2 is a top view of the binder illustrated in Figure 1, in open position, its two main parts being displaced by 180 between each other. Figure 3 is an enlarged section of the binder illustrated in Figure 1, according to the A-A plane indicated herein. Figure 4 is a top view of a second binder in closed position. Figure 5 is a top view of the binder illustrated in Figure 4 in open position, its two main parts being displaced by 180 between each other. Figure 6 is an enlarged section of the binder illustrated in Figure 1, according to the B-B plane indicated herein. Figure 7 illustrates a component designed for joining both main parts of the binder to each other, differing from analogous ones as illustrated in Figures 2 and 5. Figures 8 and 9 illustrate in enlarged detail a variation for the binder illustrated in Figure 4. Figure 10 is section of the detail as illustrated in Figure 8, according to the C-C plane .indicated herein. As is realized from the drawings, we have that the binder is formed by two main parts (1) and (2) , which comprise two laminated rods (3) and (4) provided, spacedly and from one of its longitudinal edges, with a number of semi-rings (5) and (6) . Parts (1) and (2) are hinged to each other, such linkage occuring at the portion of the semi-rings (5) and (6) , adjacent to the respective rods (3) and (4) . Linkage between parts (1) and (2) may be obtained by means of a wire or other adequate material, located along the longitudi nal edge of each rod (3) and (4) , adjacent to their respective semi-rings (5) and (6) , as illustrated in Figures 2 and 3. The wire (7) discloses, along same, a number of plies arranged alternately left and right, which involve a sequence of semi¬ rings pertaining sometimes to part (1) , sometimes to part (2) , at the portion of the these adjacent to the respective rods (3) and (4) . The wire (7) ends are bent by 180°, so as to involve the pairs of extreme supplementary semi-rings of the binder. Linkage between parts (1) and (2) may also be obtained by means of rectangular rings (8) , which are placed at some or all pairs of supplementary semi-rings (5) and (6) , as illustrated in Figures 5 and 6. Each rectangular ring (8) adjusts itself to a pair of supple¬ mentary semi-rings (5) and (6) , involving them at the portion of these adjacent to rods (3) and (.4) . It is formed by a metal wire or other appropriate material, shaped according to a rectangle the length and width of which should be sufficient for the ring thus formed to adjust itself to the respective pairs of supplementary semi-rings (5) and (6) . In Figure 7, the various rectangular rings (8) , instead being formed by isolated parts, are obtained by means of a single part, to which any two adjacent rings (8) are joined to each other by means of a longitudinal segment. Being the binder in a closed position, rods (3) and (4) are juxtaposed and semi-rings (5) and (6) form a number of closed retaining rings for perforated leaves or sheets, as illustrated in Figures 1 and 4. For the binder to be capable of being held at the closed posi¬ tion, it is provided with a removable rod (9) , tied to rods (3) and (4) and of a length substantially equal to these. To open the binder, it is enough to remove the rod (9) from rods (3) and (4) , after which parts (1) and (2) may rotate freely between each other, as illustrated in Figures 2 and 4, whereby one may insert or remove the leaves or sheets of both parts (1) and (2) . Closure of the binder is achieved by means of reverse operation, that is: parts (1) and (2) are rotated until the positions wherein rods (3) and (4) remain juxtaposed; next, rod (9) is introduced, by adjusting rods (3) and (4) . In the binder illustrated in Figures 1, 2 and 3 the corre- I I sponding rod (9) consists of a U -shaped profile, the flanges of which are spaced from each other by an amount sufficient to hold rods (3) and (4) , these being juxtaposed. Rods (3) , (4) and (9) of this binder are provided with a set of orifices and/or punched points, which are designed to hold rod (9) firmly tied to rods (3) and (4) , the binder being in the closed position. As exemplified in Figure 2, rod (9) is provided, at one end, with two orifices (10) arranged frontally to each flange. The other end of rod (9) has a punched point (11) . In correspondence to the orifices (10) and to the punched point (11) , rods (3) and (4) are provided with two punched points (12) and two orifices (13) , respectively. Being the binder in the closed position and with rods (3) and (4) duly inserted in rod (9) , the orifices (10) and the punched point (11) adjust themselves to the punched points (12) and (13) , respectively. In order to provide a more solid adjustment or rod (9) , it is convenient that its flanges exhibit themselves slightly convergent, as illustrated in Figure 3. The binder as illustrated in Figures 4, 5 and 6 is formed so as not to need orifices and/or punched points for obtaining a firm union of rod (9) to rods (3) and (4) . In this binder, each rod (3) and (4) is provided with a small bend (14) located at its longitudinal edge opposed to the respective semi-rings. Rod (9) corresponding to this binder, as illustrated in Figure 5, consists of an approximately U-shaped profile, which adjusts itself to the bends (14) , involving them as illustrated in Figure 6. Figures 8, 9 and 10 illustrate a variation for the binder as illustrated in Figure 4. In this variation, rod (4) , instead disclosing a continuous bend, is provided with a number of bends (16) regularly spaced along its longitudinal edge. The corresponding rod (9) is formed by an approximately U-shaped profile, where one of its flanges is carved in such a way as to form a number of bends (17) , each adjustable to a corresponding bend (16) of rod (14) , the binder being in the closed position-. Rod (3) is provided, in turn, with bends (18) , (19) , turned to one and the other side of the respective semi-rings (5) . To open the binder, in lieu of removing rod (9) entirely, it will be sufficient to displace same by a distance enough for the bends (17) to let the respective bends (16) free, as illustrated in Figure 9, so as to permit that parts (1) and (2) to rotate relatively free. In this position, rod (9) will remain tied only to part (1) , adjusting itself at bends (18) and (19) of its laminated rod (3) . The free ends of each semi-ring (5) and (6) discloses a narrowing (15) turned to one side. Being the binder in the ' closed position, the narrowings (15) of each supplementary semi-ring (5) and (6) position them¬ selves side by side, as illustrated in Figures 1 and 4. Should semi-rings (5) and (6) * be thin parts or provided with some elasticity, it will be convenient to form them in such a way that, the binder being in the closed position, each narrowing (15) end will remain slightly protruding in relation to the exterior and adjacent surface of the respec¬ tive supplymentary semi-ring , as illustrated in Figures 3 and 6. IJUREA OMPI

Claims: CLAIMS 1. LOOSE LEAF BINDER comprising two main parts (1) and (2) which include two laminated rods (3) and (4) provided, spacedly and from one of its longitudinal edges, with a number of se i- rings (5) and (6) , the main binder parts (1) and (2) being linked to each other at the region of intersection between laminated rods (3) and (4) and their respective semi-rings (5) and (6) , whereby the main binder parts (1) and (2) may rotate one in relation to the other, from a position corre- sponding to the binder in closed position, in which laminated rods (3) and (4) are juxtaposed, with their semi-rings (5) and (6) forming a number of pairs of supplementary semi-rings (5) and (6) which make up closed rings retaining perforated leaves or sheets, to a position corresponding to the binder in open position, where laminated rods (3) and (4) form an angle of up to 180° to each other, the binder having a remov¬ able rod (9) which adjusts itself at the laminated rods (3) and (4) , these being juxtaposed, thus preventing that the main binder parts rotate in relation to each other, thus _ main- taining the binder in the closed position. 2. LOOSE LEAF BINDER according to claim 1, comprising two main parts (1) .and (2) linked to each other at the region for inter section between laminated rods (3) and (4) of these parts and their respective semi-rings (5) and (6) , by means of rectangu- lar rings (8) inserted into some or all pairs of supplementary semi-rings (5) and (6) of the binder, each rectangular ring (8) being formed by a metallic wire or other appropriate mate¬ rial, shaped according to a rectangle the length and width of which sufficient so that the rectangular ring (8) thus formed adjust itself to a pair of supplementary semi-rings (5) and (6) , involving them at the portion of these adjacent to the respective laminated rods (3) and (4) . 3. LOOSE LEAF BINDER, according to claims 1 and 2, comprising a set of rectangular rings (8) , obtained by means of a single piece where any two adjacent rings are joined to each other by means of a longitudinal segment. 4. LOOSE LEAF BINDER, according to claim 1, comprising two 'BUREA OMP main parts (1) and (2) linked to each other at the region for intersection between laminated rods (3) and (4) of these parts and their respective semi-rings (5) and (6) , by means of a wire (7) or other appropriate material, arranged along the longitudinal edges of laminated rods (3) and (4) adjacent to the respective semi-rings (5) and (6) , the wire (7) having a number of bends arranged alternately right and left, which involve a sequence of semi-rings (5) and (6) pertaining some¬ times to one, and sometimes to the other main binder part, at the portion of these semi-rings adjacent to the respective laminated rods (3) and (4) , the wire ends (7) being bent at 180°, in such a way as to involve the pairs of supplementary extreme binder semi-rings (5) and (6) . 5. LOOSE LEAF BINDER, according to claim 1, comprising a re- movable rod (9) adjustable to laminated rods (3) and (4) , formed by an 'ϋ'-shaped profile the flanges of which have length and width substantially equal to those of laminated rods (3) and (4) , said flanges being slightly convergent toward their free edges, being spaced from each other a sufficient distance between each other for the removable rod (9) to be capable of holding laminated rods (3) and (4) , these being juxtaposed, the removable rod (9) and laminated rods (3) and (4) being provided with a set of orifices (10) and (13) and/or punched points (11) , (12) arranged in such a way that, the binder being in the closed position and with the laminated rods (3) and (4) duly inserted into the removable rod (9) , each punched point or orifice adjusts itself to a respective ' punched point, so as to hold the removable rod (9) firmly tied to the laminated rods (3) and (4) . 6. LOOSE LEAF BINDER, according to claim 1, comprising a removable rod (9) of a length substantially equal to that of laminated rods (3) and (4) , consisting of an approximately U-shaped profile, adjustable to two bends (14) located at the longitudinal edge of each laminated rod (3) and (4) , opposed to the respective semi-rings (5) and (6) . 7. LOOSE LEAF BINDER, according to claim 1, comprising a remov able rod (9) of a length substantially equal to that of lami- OMPI nated rods (3) and (4) , consisting of an approximately U-shaped profile, where one of its flanges presents itself carved so as to form a number of bends (17) spaced along rod (9) , adjusting itself the profile thus formed to bends (18) , (19) located along the longitudinal edge of one of the laminated rods (3) , opposed to the respective semi-rings (5) , said bends being turned to one and the other side of these semi-rings (5) , the profile thus formed adjusting itself to the remaining bends (16) located along the longitudinal edge of the other laminat- ed rod (4) , opposed to the respective semi-rings (6) , such bends (16) being turned toward the same side of these semi¬ rings (6) , whereby the rod (9) may displace itself longitudi¬ nally from a position where the latter adjusts itself to the various bends (16) , (18) , (19) of the laminated rods (3) and (4) , preventing that the main binder parts (1) and (2) rotate relatively between each other, to a position where the bends (17) of rod (9) let bends (16) of one laminated part (4) , those turned only toward the same side of the respective semi-rings (6) , permitting that the main binder parts (1) and (2) rotate relatively between each other, whereby at this position rod (9) remains tied to only one main binder part (1) , adjusting itself at the bends (18) , (19) of its laminated rod (3) , those turned to one and the other sides of the respective semi-rings (5). 8. LOOSE LEAF BINDER, according to claim 1, comprising a number of semi-rings (5) and (6) the free ends of which disclose a narrowing (15) turned to one side, positioning themselves side by side the narrowings (15) of each pair of supplementary semi¬ rings (5) and (6) , the binder being in the closed position. 9. LOOSE LEAF BINDER, according to claims 1 and 8, comprising a number of semi-rings (5) and (6) at which, the binder being in the closed position, the narrowing end of each semi-ring (5) or (6) discloses itself slightly protruding in relation to the exterior and adjacent surface of the respective supplementary semi-ring (6) or (5) . " B U E OMPI

Inventors: CARDELLINI C, CARDELLINI V
Applicants: CARDELLINI C, CARDELLINI V
Application year: 1981
Main classification: B42F13
IPC codes: B42F13