US2947309A

US2947309A - Loose leaf binders

Info

Publication number: US2947309A
Application number: US703388A
Authority: US
Inventors: Bennett Phillip
Original assignee: Individual
Current assignee: Individual
Priority date: 1957-12-17
Filing date: 1957-12-17
Publication date: 1960-08-02
Anticipated expiration: 1977-08-02

Description

Aug. 2, 1960 P. BENNETT 2,947,309 LOOSE LEAF BINDERS Filed Dec. 17, 1957- 2 sheaths-Sheet 1 Inventor Phillipfiennezi Aug. 2, 1960 P. BENNETT 2,947,309

LOOSE LEAF BINDERS Filed Dec. 17, 1957 2 Sheets-Sheet 2 5 6 3 F/G.7. m

I m It $bil v T i -5b F/GQ F/G/O Inventor 'P/ u'l Z1. ,0 ,Benneii By W Attorneys1k Un te States LOOSE LEAF BINDERS Phillip Bennett, Port Mills, Brimscombe, Stroud, England Filed Dec. 17, 1957, Ser. No. 703,388 1 Claim. (Cl. 129-24) This invention relates to loose leaf binders having ring plates movable in relation to one another into the open and closed position and which ring plates are mounted on pivoted flaps on the cover of the binder adapted to close inwardly into alignment to move the ring plates into the closed position fastening the loose leaves on curved prongs on the ring plates, and this invention has for its object simple means for fastening together the ring plates in the closed position and which means are operated in a very simple manner.

According to the present invention, a loose leaf binder has ring carrying plates mounted on flaps thereon adapted to swing on a crease joint between the flaps and the cover of the binder, and has fasteners captively attached to the binder which have socket and tongue engagement with the ends of the ring plates to form a rigid support connecting the ends of the ring plates and locking the ring plates in the closed position and whereby the ring plates are held fixed together in the closed position without the fastener requiring support from the binder cover. 'Ihe fasteners may each comprise a flat plate slidably mounted on the binder and a head on the plate having sockets for engaging tongues on the ends of the ring plates. The flat plate of the fastener may have a slot therein which engages a head pin on the binder, the plate being slidable between the flaps carrying the ring plates. The flat plate of the fastener may be slidably engaged between two layers of the cover member.

Referring to the drawings:

Figure l is an inside face view of a portion of a binder with the ring plates in the closed position.

Figure 2 is a similar view to Figure 1, with the ring plates in an open position.

Figure 3 is a plan view of a fastener detached.

Figure 4 is a front view of Figure 3.

Figure 5 is a side elevation of Figure 3.

Figure 6 is a section on line V I-VI of Figure 2.

Figure 7 is a face view of a portion of a binder showing a modified form of the invention.

Figure 8 is a section on line VI I IVI'I'I of Figure 7.

Figure 9 is a face view of a portion of a ring plate detached, and

Figure 10 is an end elevation.

According to one form of the invention, a loose leaf binder comprises a cover A formed of paper board or the like and two flaps 2 are formed by folding the material of the cover at the junction of the face portions 3 and back portion 4, the two layers of the fold being suitably fixed together. The ring plates 5, having curved filing prongs 5a thereon, are formed as mouldings of plastics material and are mounted on the flaps 2 by rivets. The flaps 2 can thus swing on the crease joints 6 on the cover to swing the ring plates into the closed position side by side, as shown by Figure 1, or into the open position, as shown by Figure 2, for inserting or removing loose leaves on the curved prongs 5a. In order to fasten the ring plates in the closed position, slide fasteners 7 are anchored on the back of the binder cover and engage and mold the ring plates in the closed position. The fasteners 7 comprise slides each having ailat plate 8 adapted to slide on the back portion 4 of the binder cover and such plate has a head =9 upstanding from one end, the front face of which has two holes or recesses 10 therein. The ring plates 5 have each a tongue 11 on each end thereof and when the ring plates are in the closed position, side by side, the slides are adapted to be moved inwardly to engage the holes 10 on the tongues 11. The fiat plate 8 has a slot 12 therein which engages a headed pin 13 on the binder cover to slidably position the fastener on such cover and the plate is slidable intermediate the two flaps 2. All corners on the tongues 11 on the ring plates 5 are curved and the mouths of the recesses 10 are also curved to provide a lead-in for the engagement of the recesses [10 on the tongues 11.

As the ring plates 5 are mounted on paper board or like flaps swinging about crease joints, precise positioning of the ring plates may not be obtained as would be the case if the ring plates be mounted on pivot pins on metal parts and therefore each fastener 7 is constructed to readily adjust itself and the tongues 11 for engagement. The fasteners form means for holding the ring plates rigidly together and the ring plates and fasteners automatically align themselves when the fasteners are moved into engagement with the ring plates. When. the fasteners 7 are engaged on the ring plates 5, such fasteners and ring plates form a rigid unit without any help from the cover of the binder. The fasteners 7 need not be mounted on the cover of the binder asrthe attachment to the cover does not function as any part of the fastening, the attachment of the fastener 7 to the cover is merely a convenience for retaining the fastener 7 in a position ready for engagement. Thus notwithstanding the flexibility of the cover of the binder, a proper alignment of the ring plates is maintained when the fasteners have been applied. Having regard to the formation of the flaps on the binder cover, there is a tendency for the flaps, when free, to open and this applies a. spring pressure frictionally holding the fastener 7 in position on the ring plates 5. As the fastener 7 engages both ring plates 5 at the ends, the fastener is mounted on the ring plates, and as the ring plates cannot pivot, very little strain is taken by the means slidably fixing the fastener 7 to the cover of the binder and therefore simple mounting means only are required.

In another form, the plate 8 of the fastener 7 is, as shown by Figures 7 and 8, freely and slidably mounted between two layers 14 of the cover B of the binder between the flaps 5b on which the ring plates are mounted. The head 9 of the fastener is connected to the plate 8 by a central stem 15 which passes through a slot 16 in the top layer of the two layers 14, so that the plate 8 lies between the layers with the stem *15 passing through the slot 16 and the head 9 lying above the top layer 14, the slot allowing the fastener a limited sliding movement. The fastener 7 is thus free to move between the layers 14 and is not confined to an exact particular movement, but is free to move in any direction within limits.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent, is:

A loose leaf binder comprising a cover having spaced apart parallel flaps adapted to swing about a crease joint connecting the flaps to the cover of the binder and the cover between the flaps being formed of an inner layer and an outer layer of material, ring carrying plates mounted on the fiaps and adapted to be brought into position with the flaps in the same plane when the flaps are folded inwardly towards one another to close the binder, tongues on the ends of the ring carrying plates,

a fastener forengaging said tongues on adjacent ends of the ring carrying plates having a fiat plate slidably mounted on the binder and a head on the plate having sockets therein for engaging said tongues to mount the fastener on the ring carrying plates and to hold the ring carrying" plates against movement in relation to one another when the binder is closed, and means for slidably anchoring the plate of the fastener between said two layers of the binder cover so that it is locatedpreparatory to being slidably engaged with said tongues for fastening 10 2,572,305

the binder in the closed position, comprising astern on the fastener connecting said plate and said head, and a slot in the inner of said two layers of the bindercevef through which said stem passes which slot limits the sliding movement of the fastener.

References Cited in the file of this patent UNITED PATENTS