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