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Publication numberUS2012572 A
Publication typeGrant
Publication dateAug 27, 1935
Filing dateDec 5, 1934
Priority dateDec 5, 1934
Publication numberUS 2012572 A, US 2012572A, US-A-2012572, US2012572 A, US2012572A
InventorsJack Linsky
Original AssigneeJack Linsky
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Paper fastener
US 2012572 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

J.UNSKY PAPER'FASTENER Aug. 27, 1935.

Filed Dec. 5, 1934 INVEN 40 ATTORNEY Patented Aug. 27, 1935 UNITED STATES PATENT OFFICE PAPER FASTENEB.

Jack Linsky, New York, N. Y.

Application December 5, 1934, Serial No. 756,070

19 Claims.

a retaining member having a hingedly associated but slidable locking cover adapted to hold flexible and foldable arms of a strap in a bent relation and 4 against the retaining member for securing a stack of papers and/or cardboard together.

The invention has as an object to provide a functionally and structurally improved fastener in which foldable arms of a flexible strap posi tion in alinement the sheets of paper or the like to be fastened and in which the arms removably guide a retaining member carrying a slidable locking cover which includes means adapted to interlock with the retaining member to hold the flexible arms in a bent position and against the retaining member.

The invention has as a further object the provision of a paper fastener comprising a keeper or retaining member having an arcuate hollow bead which serves as a longitudinal fulcrum and rectilinear guide for an associated hollow bead of a swingable locking cover which in the closed position thereof cooperates to sustain flexible arms of a U-shaped member in a bent relation to urge the retaining member against the uppermost sheet of a stack of papers or appropriately hold suitable covers of a binder in the required clamping relation against an intervening stack of papers.

The invention has as a further object to provide a novel'paper fastener embodying aswingable and slidable locking cover which is hingedly connected to a retaining member comprising means for receiving foldable and flexible arms of a U- shaped complementary clamping strap, the arms being foldable towards each other and against the retaining member and cooperating with the slidable cover to hold the latter in a non-shiftable position after having been slidably interlocked with the retaining member.

Further objects, advantages and features of the invention will appear as the description herein progresses attention being new directed to the accompanying drawing in which:

Fig. 1 15a perspective view of my paper fastener illustrating the slidable cover thereof in a closed and locked position holding several sheets of paper or the like together.

Fig. 2 is a view similar to Fig. 1, showing the locking cover closed but in an unlocked position.

Fig. 3 is a perspective view of the fastener,

showing the hinged locking cover raised and unlocked.

Fig. 4 is a plain view of .Fig. 1.

Fig. 5 is a section on the line 5-.-5 of Fig. 4.

Fig. 6 is a section on the line 6-6 of Fig. 5.

Fig. '7 illustrates an exploded or disassembled view of the fastener before the slidable cover is hingedly mounted on the retaining member and the latter on the U-shaped strap and Fig. 8 is a section on the line 8 8 of Fig. 3.

According to the invention, the fastener comprises complementary clamping members II) and II in the form of relatively thin sheet metal stampings. Clamping member I0 is a U-shaped strap and includes a horizontal bar l2 having integral upstanding foldable and flexible spaced arms I3. As shown, bar I2 includes a plurality of spaced longitudinally disposed hollow reinforcing ribs I4.

Complementary clamping member I I is in the form of an elongated plate I5 having spaced transversely disposed slots I6. The rear side of plate I5 is provided with an integral hollow curved bead or arcuately reflexed portion I'l coextensive with the length thereof. The front side of plate I5 is provided with a hollow integral bead or arcuately reflexed portion l8 which includes spaced recesses or cut away portions l9 and 20.

The rear bead I1 is provided with a struck out intermediately disposed lug or stop 2| which serves to limit lateral displacement of a hingedly associated cover or locking plate, generally designated 22, which comprises a body having a substantially trapezoidal cross section as illustrated in Fig. 6 with front and rear inclined sides 23 and 24 thereof each including curved hollow spaced beads or reflexed portions 25 and 26.

The rear bead I'I slidably receives spaced beads 25 and 26 of the rear inclined wall 24 and to prevent transverse separation of the swingable cover 22 relative to the retaining member, the free terminal 21 of outside head I! is bent slightly inwardly towards the free terminals 28 of the inside rear beads 25 and 26 although slightly spaced therefrom. In other words, beads 25 and 26 of rear inclined wall 24 are telescopically associated with bead l1 and form ahinged connection permitting the cover to swing towards and away from the retaining member about a rear edge .thereof as an axis. By reason of the telescopic association of the rear beads of the cover with the rear head of the retaining member the cover maybe laterally and slidabh displaced relativeto the retaining member. In this connection inner ends 29 and 30 of beads 25 and 26 of inclined wall 24 widely straddle the sides of stop lug 2| and cooperate therewith to limit lateral displacement of the cover. More particularly spaced ends 29 and 30 constitute a gap 3| in which lug 2| extends, the gap being considerably longer than the length of lug 2|.

The forward beads 25 and 26 of inclined wall 23 are spaced apart and form an elongated chan nel or recess 32 adapted to receive reflexed part 33 of the forward bead l8 of the retaining member or keeper l5, for example, see Fig. 2, in which the cover is shown closed but in a nonlocked position. In this position, the forward bead 25 is disposed within recess I9 and forward bead 2B is arranged in part in recess 20 of the retaining member. In this position the slidable and hinged cover overhangs the retaining member and the end 29 is against stop lug 2| and hence the cover cannot further be displaced to the right.

With the cover disposed as illustrated in Fig. 2, the cover may be swung bodily rearwardly until the free terminals 21 and 28 interlock as shown in Fig. 8. Consequently further rearward displacement of the cover relative to the retaining member is prevented. In such position the cover may be considered as open and access is had to the flexible bent arms |3 of the U shaped strap if they had been previously threaded through the transverse slots l6 of the retaining member.

In Figs. 1 and 5, a stack of papers 35 are secured by the fastening device according to the invention. These papers or flexible elements are first appropriately perforated and subsequently are moved downwardly and guided on the upstanding spaced arms |3 of strap I0 with the bottom paper or sheet of the stack against the reinforced bar l2. Following this, retaining member 5 is placed over arms I3 and these arms are passed into slots l6 after which the retaining member is dropped against the topmost sheet of the stack. The flexible arms l3 are bent inwardly and towards each other as illustrated in Fig. 3. With the cover in the position illustrated in Fig. 3, it is manually swung bodily and downwardly towards the retaining member, pivoting on the rear hinged connection, flexing the arms |3 downwardly against the upper rectilinear face of the retaining member. With manual pressure still applied to overcome the resiliency of the flexible arms, which would automatically raise the cover in the event this pressure were removed, the cover takes the position illustrated in Fig. 2, to wit, bead 33 of the retaining member is disposed or registered in channel 32 of the cover, the forward bead 25 is in registration with recess I9 and forward bead 26 is in part disposed in recess 20.

The cover may now be bodily and slidably moved to the left upon the application of a laterally directed finger pressure on the centrally disposed knurled boss 36. With a slight lateral with beaded portions 31 and 33 respectively, the

sloping walls 23 and 24 urge the flexible bent arms l3 downwardly and consequently the sheets movable retaining member having trapezoidalshaped end lugs 39 and 40 which are flush with the corresponding ends of the slidable cover when the latter is in a closed and locked position to prevent ingress of undesirable particles such as dust or the like within chamber 38.

The retaining member may be readily and conveniently disconnected from the strap for the insertion of a new sheet to the stack 35 or where it is desired to replace one sheet by another. To this end, the cover is manually moved to the right until abutment end 29 strikes stop lug 2|. In this position, as previously stated, the cover is unlocked from theretaining member and if at this time manual pressure be removed, the cover opens automatically due to the resiliency of the folded cover is closed and subsequently shifted to the left to its locked position.

In the broader aspect of the invention, I do not desire to be understood as limiting its embodiment to details herein shown illustratively as a wide variety of modifications may be made within the scope of the appended claims without departing from the spirit of the invention.

I claim:

1. In a fastener, the combination of, a strap comprising flexible and foldable arms, a retaining member removably mounted on said arms, and a cover longitudinally slidable relative to said member hingedly connected to said member and adapted to hold said arms thereagainst.

2. In a fastener, the combination of, a strap for supporting sheets of paper'and comprising flexible arms, a retaining member removably mounted on said arms, a cover having a hinged and longitudinal shiftable connection with said retaining member and means for holding said cover removably interlocked with said retaining member.

3. In a fastener, the combination of, a strap for supporting a plurality of flexible elements and comprising flexible upstanding arms, a retaining member removably guided by said arms and. adapted to rest on the uppermost element of said plurality, said arms being foldable toward each other to sustain said retaining member against said uppermost element, and a cover having a slidable and swinging connection with said retaining member adapted to urge said arms towards and against the latter, said cover and retaining member comprising slidable and disconnectable interlocking means for holding said flexible arms against said retaining member.

4. In a fastener, the combination of, a strap comprising a U shaped member comprising flexible arms adapted to guide displacement of flexible elements adapted to be mounted on said member, a retaining member having openings adapted to receive said arms, the latter being foldable against said retaining member and a, cover having a hinged connection with said retaining member and longitudinally slidable relative to the latter and adapted to be bodily swung against said folded arms tohold the latter against said retaining member.

5. In a fastener, the combination of, a U shaped member comprising foldable arms adapted to guide displacement of flexible elements adapted to be mounted on said member, a retaining member having openings adapted to receive said arms, the latter being foldable against said retaining member and a cover having a hinged connection with said retaining member and adapted to be bodily swung towards said folded flexible arms to hold the latter against said retaining member,

' said connection having means to permit lateral displacement of said cover relative to said retaining member, the latter and said cover having means adapted to disconnectably interlock and hold said cover against said folded arms.

6. In a fastener, the combination of, a U shaped member comprising foldable arms adapted to guide displacement of flexible elements adapted to be mounted on said member, a retaining member having openings adapted to receive said arms, the latter being foldable against said retaining member, and a cover having a hinged-connection with said retaining member and adapted to be, bodily swung downwardly towards said folded flexible arms to hold the latter against said retaining member, said connection having means to permit lateral displacement of said cover relative to said retaining member, the latter and said cover having means adapted to disconnectably .interlock for holding said cover against said folded arms, said folded arms in the disconnectable interlocking relation of said cover and retaining member cooperating with said cover to prevent lateral displacement of the latter.

7. In a fastener, a strap having spaced flexible arms, a retaining member removably mounted on said arms, the latter being foldable towards said member, a locking cover, a bead carried by said member, and a bead carried by said cover slidably associated with the aforementioned bead of said member, the beads of said cover and member constituting a hinged connection permitting said cover to be swung bodily towards and away from said retaining member.

having foldable arms, a retaining member having means for receiving said arms, and a cover having a hinged and slidable connection with said member, said cover being adapted to be swung against said arms to position the latter against said member, said member having spaced guide portions, said cover having means adapted to be slidably guided by said guide portions during the lateral displacement of said cover.

11. In a fastener, the combination of, a retaining member, a cover having a hinged and slidable connection with said member, the latter comprising a longitudinally disposed bead having spaced recesses, the cover including spaced heads defining a recess adapted to straddle a portion of I said first mentioned bead for disposing said spaced beads of said cover in said spaced recesses in the unlocked and closed position'of said cover, said spaced beads of the cover during lateral displacement thereof adapted to removably interlock with said longitudinally disposed bead of said retaining member.

12. In a fastener, the combination of, a strap having foldable arms, a retaining member adapted to receive said arms, a cover and a slidable and hinged connection between said cover and.

interlocking means to prevent rearward displacement of said cover relative to said member and to hold said terminals against said member.,

14. In a fastener, the combination of, a strap having foldable terminals, a retaining member removably' receiving said terminals, a cover, a slidable and hinged connection between said cover and member, said cover being swingable about a rear longitudinal edge of said member and against said terminals to position the latter against said member and locking means effective upon lateral displacement of said cover in one direction to hold said cover closed.

15. In a fastener, the combination of, a strap having foldable arms, a retaining member removably mounted on said arms, a cover, a slidable and hinged connection between said cover and member, means to limit lateral displacement of said cover relative to said member, said cover beingswingable relative to said member to position said arms against thelatter, said cover and member having locking means effective upon lateral displacement of said cover in one direction to hold said cover against said arms to position the latter against said member, said locking means being disconectable upon lateral displacement of said cover in an opposite direction to open the latter.

16. The fastener according to claim 15 characterized further in that upon disconnection of said locking means, said arms automatically raise said cover.

1'7. In a fastener, the combination of, a strap having flexible arms, a retaining member removably guided by said arms and a cover, said cover and member having longitudinally disposed reflexed portions defining a slidable and swingable telescopic connection permitting said cover to be selectively laterally displaced relative to said member or permitting said cover to be swung bodily towards or away from said member, means to limit lateral displacement of said cover, said cover and member comprising a telescopic'disconnectable interlocking connection to hold said cover closed and hold said arms against said retaining member.

, cover and member.

is disposedat corresponding front sides of said 19. In a fastener, the combination of, complementary removably associated clamping members adapted to secure a plurality of flexible elements, one of said members comprising flexible and' foldable arms the other complementary member constituting a retaining member adapted to receive said arms, a cover slidable laterally relative to said retaining member and hingedly carried thereby, means to limit lateral displacement of said cover relative to said retaining member, said cover being bodily swingable towards said flexible arms to hold the latter in clamping relation against said retaining member, said cover and retaining member comprising disconnectable interlocking means effective upon lateral displacement of said cover relative to said retaining 10 member to hold said cover closed.

JACK LINSKY.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3263689 *May 25, 1964Aug 2, 1966Us Tabulating Binder CorpPost binder and compression mechanism therefor
US3285251 *Jul 6, 1965Nov 15, 1966Boorum & PeaseLoose leaf binder
US4979841 *Dec 4, 1989Dec 25, 1990Lauder John AMember for sheet binding staple
US5338126 *Feb 26, 1993Aug 16, 1994Howard MullinHinge binder device
US5425592 *Mar 7, 1994Jun 20, 1995Duo-Tang, Inc.Hinge binder device
US7934884Apr 27, 2005May 3, 2011Lockhart Industries, Inc.Ring binder cover
US8414213Apr 28, 2011Apr 9, 2013Lockhart Industries, Inc.Ring binder cover
US20140270901 *Mar 14, 2014Sep 18, 2014Rodney M. ShieldsZip Fasteners and Binders
WO1994019202A1 *Feb 23, 1994Sep 1, 1994Duo Tang IncA hinge binder device
Classifications
U.S. Classification402/16, 402/15, 402/17
International ClassificationB42F13/00, B42F13/08
Cooperative ClassificationB42F13/08
European ClassificationB42F13/08