US2552076A - Loose-leaf binder - Google Patents

Description

May 8, 95 F, D, WEDGE 2,552,076

LOOSE-LEAF BINDER Filed Deo'. 29, 1948 2 sheets-sheet 1 May 8, 395i F. D. WEDGE 2,552,076

LOOSE-LEAF BINDER Filed Dec. 29, 1948 2 Sheets-Sheet 2 Patented May 8, 1951 LOOSE-LEAF BINDER Fred D. Wedge, Oak Park, Ill., assignor to Wilson- Jones Com-pany, Chicago, Ill., a corporation of Massachusetts ApplicationDecember 29, 1948, Serial No. 67,788

1 Claim. 1

This invention relates to a loose leaf binder, and particularly to a trigger for opening and closing the sheet retaining rings.

It is an object of my invention to provide a trigger that will operate efliciently to open or close the rings of a loose leaf binder. It is a further object of my invention to Vprovide a trigger that is inexpensive to manufacture and to assemble in the loose leaf binder. It is a further object of my invention to provide `a trigger strong enough to open or close the rings from one end of the binder. Other objects of my invention will lbecome apparent upon reading the following description, in conjunction with the accompanying drawings, in which:

Figure 1 is a perspective view of a loose leaf binder embodying the invention, shown with the covers in open position;

Figure 2 is a fragmentary longitudinal sectional view, through one end of the loose leaf binder, l.

showing the parts in the positions assumed when the sheet retaining rings are in closed position;

Figure 3 is a view, similar to Figure 2, showing the parts in the positions assumed when the sheet retaining rings are in open position;

Figure 4 is a cross sectional view, taken along the line 4 4 of Figure 2;

Figure 5 is a cross section view, taken along the line 5 5 of Figure 3;

Figure 6 is a fragmentary longitudinal sectional view, taken along the line E- of Figure 2;

Figure 7 is a fragmentary perspective View of a cover plate adapted to fit over the ring carrying plates and having a slot through which one end of the trigger projects;

Figure 8 is a fragmentary perspective view of the ring carrying plates in side by side relation- Ship;

Figure 9 is a detail perspective view of the trigger;

Figure 10 is a detail perspective view of the hollow stud on which the trigger is impaled; and

Figure 1l is a detail perspective view of the rivet which passes through the hollow stud and secures the metal to the cover.

In the drawings, the reference numeral 'Z indicates a cover plate having opposite longitudinal edges 3 and 4 turned downwardly and inwardly. The cover plate is provided with a plurality of pairs of transversely aligned apertures 5 and 6 through which mating ring sections l and 8 project. The ring sections 1 and 8 are swaged into flat plates 9 and I0, respectively, which are arranged in the cover plate in side by side relationship. The outer edges of ring carrying plates 9 and I9 are held against the edge portions 3 and 4, respectively. The inner edges of plates 9 and I0 are held in abutting relationship by means of a plurality of buttons Il fitting in apertures I2 formed by notching matching recesses in the inner edges of the plates. The buttons permit a toggle movement of the plates and hold the inner edges in the abutting relationship in either down position, when the ring sections are closed, or in up position, when the ring sections are open.

The end sections of the cover plate are turned downwardly, as indicated at I3. The side edges of the end sections are shaped to conform to the curvature of edge portions 3 and 4 to form a neat closure for the ends. A slot Ifi extends transversely of the cover plate at its junction with one end portion I3. Although slot I4 is shown at only one end of the cover -plate it is obvious that if it is desired to provide the loose leaf binder with two triggers a similar slot will be provided at the opposite end. If only one trigger is provided it doesnt make any difference which end the trigger is mounted in, as long as the trigger and slot are both at the same end of the metal.

The trigger comprises a body portion I5 and a finger portion I6 bent out of astrp of fiat stock. The angle between portionsA I5 and I6 is preferably obtuse. The free end of the body portion is slotted, as indicated at l1, the ends I8 and I9 being bent downwardly and upwardly, respectively. When the trigger is positioned with its finger portion I6 extending through slot I4, the end I8 engages the underside of the end of plate 9, and the end I9 engages the upper surface of the end of plate IIJ. The end I8 is sufciently strong to move the plate 9 from its lowermost position to its uppermost position when finger portion I6 is pressed outwardly, and the end I9 is strong enough to move the plate IU from its uppermost position to its lowermost position when nger portion I6 is moved inwardly. When either plate 9 or I0 is moved'the buttons I I cause the other plate to be moved with it so that the plates retain their abutting relationship.

The body portion I5 of the trigger is provided with an aperture 20 large enough to t loosely on a hollow stud 2|. The bottom of stud 2l is provided with a flange 22 adapted to seat on the inside surface of the cover 23 and the upper end is provided with a shoulder 24. The portion 25 above shoulder 24 is of smaller diameter and fits snugly in an aperture 2B formed in the cover plate. Aperture 26 is countersunk, as indicated at 21. A rivet 28 extending through the cover 23 has a flat head 29 flush against the outer surface of the cover` and its shank 30 extending through the hollow stud 2|. The shank 30 is slightly smaller in diameter than the portion 25 of the hollow stud and projects a short distance thereabove. The top edges of the hollow stud 2| and the rivet 28 are bent over in a single operation and the edge of the hollow stud engages the top surface of a ange 3l extending circumferentially of aperture 26. The edge of the rivet lies over the edge of the hollow stud but does not extend above the cover plate 2. The shoulder 24 supports the circumferential flange 3| during the riveting operation and prevents collapse of the cover plate. This protection againstcollapse.

of the cover plate during the riveting operation is necessary not only to preserve the appearance of the binder, but to maintain sufficient Working' space for the trigger which must move vertically on the hollow stud tok open or close the rings.

Although I have described a preferred embodiment of my invention in considerable detail, it will be understood that the description is intended to be illustrative, rather than restrictive, as many details may be modified or changed without departing from the spirit or scope of my invention. Accordingly, I do not desire to be relstricted to the exact structure described, except as limited by the appended. claim.

I claim: In a loose leaf binder, a pair of ring carrying 4 plates arranged in side by side relationship with a toggle joint therebetween, a plurality of mating ring sections mounted on each of said plates, and a trigger pivotally mounted adjacent one end of said plates, one end of said trigger being bifurcated with one bifurcation engaging the top surface ofV one of, said plates adjacent its inner longitudinaledge, andthe otherk bifurcation engaging' the underside of said other plate adjacent its inner longitudinal edge, said bifurcated end being pivotally movable in a vertical plane, downward movement of said first mentioned bifurcation being effective to move the inner longitudinal edges of said ringA carrying plates downwardly, and upward movementof said second mentioned bifurcation being effective to move the inner longitudinal'edges of said ring carrying plates upwardly.

FRED D. WEDGE.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PTENTS Number Name Date 2,253,430 Schade Jan. 15, 1918 2,242,035 Koelling May 13, 1941 2,439,675 Segal Apr. 13, 1948

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