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Publication numberUS2343118 A
Publication typeGrant
Publication dateFeb 29, 1944
Filing dateMay 17, 1943
Priority dateMay 17, 1943
Publication numberUS 2343118 A, US 2343118A, US-A-2343118, US2343118 A, US2343118A
InventorsWhite Paul W
Original AssigneeParva Products Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
One-piece buckle
US 2343118 A
Images(1)
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Description  (OCR text may contain errors)

Feb. 29, 1944; E W WHW; 2,343,113

ONE-PIECE BUCKLE Filed May 1"?. 194s was Patente-cl Feb. 29, 1944 UNITED PATENT OFFICE ONE-PIECE BUCKLE raul w. White, rbrt Lauderale, F1a., assignr yto Parva Products Company, Chicago, Ill., 'a

corporation of Delaware Armenian-May 17,1943, 'sensi No. 487,22*:

ments, in the use of lsharp prongs or -spikes which inevitably tear and injure the belt or strap, or

in recourse to the well known pivoted prong or slide type two-:piece buckles.

With the advent of recent metal shortages and restrictions, which make highly desirable the adoption of substitute materials, such as n'iold-l able plastics and the like, in lieu of metals, thev advantages of providing -a Vone-'piece -buckleha've increased immeasurably. At the same time, .how-

ever, due to the decreased strength of materials of this character, the .problem-s involved'in providing small, flat, one-piece buckles, which are inexpensive to construct and easy to thread and which will not slip when subject'edto tension, in-

volve even greater difliculties. It isnot thought that any entirely satisfactory constructionhas heretofore been provided, and accordingly itis a further object of this invention to provide a onepiece plastic buckle of pleasing appearance which, when applied to `.a strap, does -not cause excessive bulging, which may be inexpensivelsr manufactured in any desi-red quantities, and which may readily be manipulated to permit ready adjustment and to secure the strap in desii-ed adjusted positions.

In carrying out the present invention, a combination of features is employed which co-perates in a novel manner to provide a rugged construction, ease of threading and adjusting, and a high degree of resistance to slipping. Strength and ruggedness of the one-piece buckle is achieved by providing a ira-me having strong, thick side bars `of greater thickness than the strap, and crossbars of vlesser thickness selectively inset either from the front or the rear surfaces cf the side bars, so that the strap, when threaded, lies at least partially Within the confines of the side bars thereby avoiding 'excessive bulging. Ease of threading is obtained by employing aand Athe strap which doesnot'involve complicated or multiple 4in'terw'iriding of the strap throughthe buckle, so that when tension is released the free end of the strap may be readily drawn through the slots oi the frame, the bars and slots at the saine time being so arranged and so vshaped that upon fthe application of. tension to the strapslipping of ythe strap relative to 'the frame isresisted 'by distortion of thev strap in a plurality of direcW tions, by "triction'a'l resistance between overlying portions of the strap, and 'by clamping a portion o'f the strap against fa broad clz'i'rnpingy surface of the frame.A

For a more completeunder'standing of the invention "reference should now be had to the drawing, in which:

` the buckle of Fig. 4 associated with a strap;

Fig. 6 -is a sectional View` taken along the lines 6-6 oi' Fig. 5;

Fig. 7 is a 'perspective view of another one-piece lbuckle embodying the present invention ;Jv

Fig. 8 lis a sectional view taken substantially through the center line of the buckle shown in 'Fig 7 and illustrating the association of this by intermediate crossbars Il l5, so a-s to detine a plurality of strap-receiving slots H5, l'l, and I8,

As shown best in Figs. l and the inner side walls of the end bars l2 and I3 are curved in opposite directions and, as shown best Fig. 3, the rear walls of the end bars l2 and` I3 are inset simple co-operative relation between the bars '55 from the rear surfaces ofthe side bars lll and ll crossbar I4 is provided with a curved side walll :,y

which is spaced from the curved side wall ofthe end bar I2 so as to provide the elongate arcuate slot I6 extending across the. bucklejrame.: The

front wall of this intermediate' crossbary I4, as

shown in Figs. 1 and 3, is inset from the iront surfaces of the side bars I and..II and meets the curved side wall of the bar I4'in`a sharp edge.

The second intermediate crossbiar I is spaced fromthe other edge of the intermediate crossbar I4 to provide the slot I'I which is of a width only slightly greater than the thickness of the strap with which the buckle frame is to be associated, and is spaced from the end wall I3 a sufficient distance so that the' slot I8 is adapted to re- A ceive' plural thicknesses of the strap. As shown, the front wall of the intermediate crossbar I5 is inset from the front surfaces of the side bars I0 and I I a distance vsubstantially, equal to the thickness of the ystrap and somewhat 'greater than the inset distance ofthe intermediate crossbar I4.

Although buckles embodying the present invention may be associated with various straps or similar articles, and in fact are capable'of universal application wherever 4 detachable fastenings are desired, the embodiments of the invention herein shown are intended particularly for use with belts, or straps such as wrist-watch straps, adapted to encircle a portion' of the body of the wearer. In the drawing, the strap or belt is shown as comprising an attaching portion 2I which constitutes one end of the belt, and an adjusting portion 22 which terminates in a, free end 23. tion 2I is thickened, as shown,A by sewing or otherwise securing thereto a strip of material 24 which may be of the same material as the belt or strap,mand"the lower wall of the crossbar I4 is notched out, vas shown, to provide a recess for this thick end portion. Of course, the thick end on the attaching portion 2I'fma`y be formed in any desired manner, as by doubling over the end of the strap' or bysecuring a metal `clip thereto.

To attach the buckle to the strap, it is necessary only to insert the strap through the slot I1 and pull itentirely therethrough until ,the thick end portion 24 engages `the'notc'h in the crossbar I4 and prevents further 'movement of Athestra'p through the slot. The strap may then be passed over the upper Asurface ofthe crossbar'IS and rearwardly through the ywiderslotl I8, Vand after the strap hasbeenpassd around tl'i'egbody portion of the wearer, the free end 23 may be passed through the ourvedslot I6 from the'rear to the front of the buckle and ,pulled'therethrough yuntil the strap reacheslthe'desired adjustedv position. To secure the 'strapin this position, it is necessary onlyto pass the free end rearwardly through the wide slot I3 so that it overliesthe attaching portion2I and extends between this attachingl portion and the'4 rear wall of the end crossbar I3. l

If tension is now applied to the two portions of the strap inthe respective directions indicated At its extreme end the attaching por-v .curved rear edge of the end bar I2.

by the arrows 25 and 26, it will be apparent that the adjusting portion of the strap will be tightly clamped between the rear wall of the end crossbar I3 and the underlying adjusting portion 2l of the strap. vAt the same time, the two portions of the strap will be pressed tightly into frictional engagement with each other and the part of the adjusting portion 22 which passesY through the curved slot' I 6 will bie sharply bent over the curved front edge of the intermediate bar I4 and the This sharp bending of the strap occurs at the part thereof which is transversely curved by the walls of the slot I6, and 'the resulting distortion of the strap, v coupled with the frictional forces and the clamping action beneath the end bar I3, insures that the free end of the strap will not pull through thebuckle frame and in fact prevents any slipping movement of the adjusting portion 22 relative to the buckle frame.

Upon release of the tension, the buckle may readily be adjusted, since the clamping and frictional forces will immediately be released, and the `adjusting portion of the strap may then readily be pulled through the curved slot I6 to a new adjusted position. The manner in which the attaching portion12l of the strap or belt is Vsecured to' the buckle frame is of particular value in connection with buckles embodying the present invention in that it permits the ready interchange of variousstraps for use with a single buckle. Plastic materials from which the buckle frame may be constructed may be obtained in various colors, and consequently attractive color schemes vmaybe achieved. For example, a brown buckle may be 'I associated ywith either a brown belt or a. White belt, or a combination brown and White belt,va nd it will be apparent that the interchange of the belts may be achieved with a minimum of effort.

' The embodiment of the invention shown in Figs. 4,55; and is in principle'similar to the embodiment described above, except for the proportions of the bars and slots and for the manner in which thejadjusting portion of the strap is attached thereto. In this embodiment, the side bars 30 and 3l are connected by end bars 32 and 33 and intermediate crossbars 34 and 35 to provide a narrow'curved slot 36 similar to slot I6 of the previouslydescribed embodiment, a second slot 31, and a wide slot 3,8 similar to the'slot I8 of the previous embodiment.

' In this buckle the attaching portion 39 of the strap is secured tothe crossbar 35 by wrapping the end of the strap about the crossbar and sewing it as indicated by the reference numeral 40.

`In order to accommodate conventional belts of the type having snap fasteners on the attaching 'end thereof, the intermediate crossbar 34 is provided with a notch 4|, as shown best in Fig. 4, for permitting the snap fastener to pass' between "the crossbars '3 4 and 35 when the buckle'is atjtached to the belt." In this embodiment of the invention the adjusting portion 43 of the belt is 'threaded through' the' frame in substantially 'the same manner as describedl in connection with Figs. 1, 2, and 3, and the clamping and adjusting action-obtained is in al1 respects similar. It will benoted, however, that the slots 36 and 38 are spaced more closely than the slots I6 and I8, and consequently when Ystill? belts or straps are employed'a somewhat greater degree of bulging'at the portion o'f the ystrap which passes over the 'crossbars' 34 and 35 may be encountered. As in `the previously described embodiment, however,

the various crossba'rs are providedwith front and rear Walls inset from the v'iront and `rearsurla'c'es of the sidebars, so thatthe adjusting yportion of the belt 'lies 'at least partially within the coniine's of the side bars throughout substantially the length or' the buckle frame.

In 'the' embodiment shown lin Figs. 7 and i8, a similar arrangement of lcrossbars, 'end bars and slots is provided in a buckle frame 50, and for the purpose of securing `the attaching portion A52| of the belt to the buckle frame, the invtermersliate crossbar `52 is provided with a finger or prong 53 which extends outwardly from the rear surface of the crossbar '5.2 adjacent the edge thereof. The attaching portion l of the strap is provided with an aperture 521 adapted to vbe engaged by the prong 53 when the attaching portion is threaded through lthe frame. As in the previously described embodiments, the 'adjusting portion 55 of the belt is threaded through Vthe nar- -r'ow curved slot and the wide slot of the frame so as to overlie the intermediate crossbars and underlie the sloping clamping surface of the end bar which defines the Wide slot, thereby to provide the heretofore described non-slipping characteristics of the invention.

In the embodiment of the invention shown 'in Fig. '9, the side bars 6i) and 6| o'f the buckle frame `are connected by end bars 62 and E3 having inner curved side Walls, and by crossbars 64 and 65 spaced to provide slots corresponding to the slots inthe previously `described embodiments. It will of vcourse be understood that the various `front and rear surfaces -of the'crossbars 62,V 6'3, 64, and 55 are inset from the front and 'rear surfaces of 'the side 'bars in the same gen# eral manner as in the previously described embodiments, but in the structure shown in Fig. 9, the lcurved side Wall 6'6 on the cross'bar 64 is not concentric with the inner curved side Wall of the end crossbar 62 but instead approaches the end bar at the ends thereof to provide a crescent-shaped slot 'or a slot having tapering ends. With this construction an additional holding vforce is provided, since thev strap, when threaded through a slot of `this character, will be pinched at the end portions of the slotand crimped toward the center of the slot. It has been found that the additional holding force provided by this further distortion of the belt in the Vcurved slot is of particular advantage in connection with fabric belts, although 'it 'may be advantageously employed with belts of any desired character.

VWhile I have shown particular 'embodiments of my invention, it will be understood, of course, that I do not Wish to be limited thereto since many modications may be made, and I, therefore, contemplate by the appended claims 'to cover any such modications as fall Within the true spirit and scope of my invention. Y

Having thus described my invention, What I claim and desire to secure by Letters` Patent is:

1. A one-piece buckle for securing a strap in adjusted positions comprising a frame of molded material having spaced side bars connected by end and intermediate crossbars spaced to dcne strap-receiving slots therebetween, the adjacent side Walls of two of said crossbars being curved to define an elongate arcuate slot extending across said frame, the fr'ont wall of one of said two crossbars being inset from the front surfaces of said side bars and meeting said curved side wall thereof in a sharp edge, the Width of said slot being only slightly greater than 'the thickness .of the strap to `vbe 'secured to .permit the strapto be freely 'threaded therethrough and transversely curved vby the opposed curved walls .of said slot, .said strap when tensioned in "a direction parallel 4to the plane Fof said frame being sharply bent at 'a `transversely curved portion sthere'o'f over said sharp edge, whereby slipvpage of 'said 'strap under tension relative to said frame is resisted by distortion of said strap in said slot and vover said edge, said strap `extending lacross the `inset front wall of said one crossb'ar at least 'partially Within the confines of the front ysurfaces of saids'ide bars.

y2. A Aone-piece buckle for securing a strap in adjusted positions 'comprising a frame of molded material .having spaced side bars connected by end :and'interm'ediate crossbars spaced to define strap-receiving slots therebetween, the adjacent side walls fof two of said crossbars being curved to l"define :an elongate varcuate slot extending across said frame, the iront vWall of one 'of vsaid two crossb'ars and fthe rear Wall oi the vother ofsai-d 'frame' is resisted by distortion of said strap,

the portions of said strap adjacent slot eX- tending across said 'inset front andrear walls of said 'two crossba'r's at least partially Within the lconfn'res el" the 'front and rear surfaces of said Side bars.

3. A one-piece buckle for securing strap in adjusted positions comprising; a iframe of molded material having spaced side bars connected by end and 'intermediate lcrosslflars spaced to define strap-receiving slots therebetween, the inner side wall 'of one of said end 'bars and the adjacent side Wall 'o'f an intermediate bar being curved to denne an elongate arcuate slot eX- tending across said frame, the front Wall of said vintermediate bar being inset from the iront surfaces offsaid side bars and meeting said curved wall 'of said intermediate A'ba-rin a. sharp edge, vthe Width of said 'slot being only slightly greater than the thickness of the strap to be secured to permit the strap to be freely threaded through said slot and transversely curved bly the Walls thereof, said strap when tensioned in a direction substantially parallel to the plane of said framel being sharply bent over 'said edge at a 'transversely curved portion of said strap, Whereby slippage ol said strap under tension is re sisted by distortion of said'strap in said slot and over said sharp edge,`said strap extending across the inset front wall of said intermediate bar at least partially within the confines of the iront surfaces of said side bars.

4. A one-piece buckle for securing a strap in adjusted positions comprising a. Trani@ of 'molded material having spaced side bars connected by vend and intermediate crossbars spaced to deiine strap-receiving slots therebetween, the inner side wall 'of one of said end bars and the adjacent side Wall of an intermediate bar being curved to define an elongate arcuate slot extending across said frame, the `iront v'Wall 0f Said intormediate bar and the rear wall of said one end bar being inset from the front and rear surfaces respectively of said side bars and meeting said respective curvedl side walls in sharp edges, the width of said slot being only slightly greater than the thickness of the associated strap to permit the strap to be freely threaded through said slot and transversely curved by the walls thereof, said strap when tensioned in a direction substantially parallel Yto the plane of said frame being sharply bent at transversely curved portions thereof over said sharp edges, whereby slippage of said strap under tension is resisted by distortion of said strap in said slot and over said edges, said strap extending across said inset front and rear walls of said intermediate and end bars at least partially within the connes of the front and rear surfaces of said side bars.

5. In combination .with a strap having an attaching portion and an adjusting portion; a onepiece buckle comprising a frame having spaced side bars connected by end and intermediate crossbars spaced to define strap-receiving slots therebetween; one of said intermediate bars constituting a strap-attaching bar about which the attaching portion of said strap extends so asto overlie the front wall thereof and extend rearwardly of the adjacent one of said end bars; another intermediate bar and the other end bar having the opposed side walls thereof curved to define an elongate arcuate slot extending across said frame for receiving the adjusting portion if said strap; said adjusting portion when thread- `d through said buckle passing rearwardly of said other end bar, through said curved slot, in front of said intermediate bars so as to overlie the attaching portion across said attaching bar, and then between said attaching portion and the rear wall of said one end bar; the width of said curved slot being only slightly greater than,

the thickness of said adjusting portion of said strap to permit said adjusting portion to be freely threaded therethrough and transversely curved by the opposed curved walls of said slot; said adjusting portion of said strap when tension is@ applied to said strap portions in a direction substantially parallel to the plane of said frame being bent over the curved edges of said slot at transversely curved portions of said strap and being clamped by said attaching portion against said rear wall of said one end bar; whereby Yslippage under tension of said adjusting portion relative to said frame is resisted by distortion of said adjusting portion in said slot and over the edges thereof and by frictional clamping eng-age- .front wall and extend rearwardly of the adjacent one of said end bars; another intermediate bar having its front wall inset from said front surfaces of said side bars less than said attaching bar; said other intermediate bar and to the other end bar having the opposed side walls thereof curved to define an elongate arcuate slot extending across said frame for receiving the adjusting portion of said strap; saidy respective front and rear walls of said other intermediate and end bars meeting said curved side walls in sharp edges; said adjusting portion of said strap when threaded through said buckle passing rearwardly of said other end bar, through said curved slot, in front of said intermediate bars so as to overlie the attaching portion across said attaching bar, and then between said attaching portion and the rear wall of said one end bar; the width of said curved slot being only slightly greater than the thickness of said adjusting portion of said strap to permit said adjusting portion to be freely threaded therethrough and transversely curved by the opposed curved walls of said slot; said adjusting portion of said strap when tension is applied to said strap portions in a direction substantially parallel to the plane of said frame being sharply bent over the curved edges of said slot at transversely curved portions of said strap, tightly pressed against said attaching portion over said attaching bar and clamped by said attaching portion against said rear wall of said one end bar; lwhereby slippage under tension of said adjusting portion relative to said frame is resisted by distortion of said adjusting portion in saidvslot and over the sharp edges thereof and by frictional engagement with said attaching portion and clamping engagement with said one end bar.

'7. In combination with a strap having an attaching portion and an adjusting portion; a onepiece buckle comprising a frame having spaced side bars connected by end and intermediate crossbars spaced to define strap-receiving slots therebetween; said end bars having the rear walls thereof inset by substantially the thickness of the strap from the rear surfaces of said side bars: one of said intermediate bars having the front wall thereof inset by at least the thickness of said strap from the front surfaces of said side, bars and constituting a strap-attaching bar about which the attaching portion of said strap extends so as to overlie said inset front wall and extend rearwardly of the adjacent one of said end bars; another intermediate bar having its front wall inset from said front surfaces of said side bars less than said attaching bar; said other intermediate bar and the other end bar having the opposed side wallsA thereof curved to define an elongate arcuate slot extending across said frame for receiving the adjusting portion of said strap; said respective front and rear walls of said other intermediate and end bars meeting said curved side walls in sharp edges; said adjusting portion of said strap when threaded through said buckle passing rearwardly of said other end bar, through said curved slot, in front of said intermediate bars so as to overlie the attaching portion across said attaching bar and then between said attaching portion and the rear wall of said one end bar; the width of said curved slot being only slightly greater than the thickness of said adjusting portion of said strap to permit said adjusting portion to be freely threaded therethrough and transversely curved by the opposed curved walls of said slot; said adjusting portion of said strap when tension is applied to said strap portions in a direction substantially parallel to the plane of said frame being-sharply bent over` the curved edges of said slot at transversely curved portions of said strap, tightly pressed against said attaching portion over said attaching bar and clamped by said attaching portion against said rear Wall asiat-1s 5 of said one: end bar; whereby slippage .undertonsion of said adjusting portiony relative tofsaid frame is. resisted bydistortionof said. adjusting portionin said slot and, over `the sharp edges thereof and by frictional engagement withf said attaching portion andclamping engagement with said one end; bar; said adjusting portion passing rearwardly of said end bars and said*I attaching portion passing, in4 front. of saidv attaching bar lying substantially w-ithin the connnes of the front and rear. surfacesv of said sidev bars. v l l 8. In combination withv a, strap having attaching portion and an adjusting portion; a one.- piece buckle comprising a trame having lspaced side bars connected by. end and intermediate crossbars spaced. to, denne strap-receiving: slots therebetween; one of said intermediate bars constituting; a strap-attaching barabout which the attaching portion of said strap extends so as to overlie the front wall of said bar and extend rearwardly of the adjacent one of said end bars; another intermediate bar and the other end bar having the opposed side walls thereof curved to denne an elongate arcuate slot extending across said frame for receiving the adjusting portion of said strap; said adjusting portion when threaded through said buckle passing rearwardly of said Iother end bar, through said lcurved slot, in front of said intermediate bars so as to overlie the attaching portion across said attaching bar and then between said attaching portion and the rear wall of said oney end bar; said curved side walls converging adjacent the side bars of.

said frame whereby the Width of said curved slot gradually decreases from a maximum width only slightly greater than the thickness of said adjusting portion of said strap; said adjusting portion when threaded through said curved slot being pinched at the edges thereof and crowded toward the center of said curved slot while being transversely curved by the opposed curved walls of said slot; said adjusting portion of said strap when tension is applied to said strap portions in a direction substantially parallel to the plane of said frame being bent over the curved edges of said slot at transversely curved portions of said strap and being clamped by said attaching portion against said rear wall of said one end bar; whereby slippage under tension of said adjusting portion relative to said-frame is resisted by distortion of said adjusting portion in said slot and over the edges thereof and by frictional clamping engagement with said attaching portion and said one end bar.

9. In combination with a strap having an attaching portion and an adjusting portion; a onepiece buckle comprising a frame having spaced side bars connected by end and intermediate crossbars spaced to denne strap-receiving slots therebetween; said intermediate bars dening a slot therebetween for receiving said attaching portion of said strap; one of said intermediate bars constituting a strap-attaching bar and having a xed prong of a length less than the thickness of said strap extending from a rear wall thereof for engaging a hole in said attaching portion adjacent the end thereof when said attaching portion is threaded through said slot and about said strap-attaching bar so as to overlie the front wall of said bar and extend rearwardly of the adjacent one of said end bars; another intermediate bar and the other end bar having the opposed side walls thereof curved to define an elongate arcuate slot extending across said frame for receiving the adjusting portion of said strap;

said adjusting portion when threaded. through .said buckle passing rearwardly of. said'v other end through and. transversely curved'. by the opposed curved walls offsaid slot; said adjusting portion of said strap when tension is applied to said strap portions ina direction substantially parallel' to the planel of said frame being bent over the curved, edges oi' said slot at transversely curved portions of said strap'and being' clamped by said attaching portion lagainst' said rear wall of said one end' bar; whereby slippageunder tension of said adjusting portion relative to said frame is resisted by distortion of said adjusting portion in said slot and over the edges thereof and by frictional clamping engagement with said attaching portion and said one end bar.

10. In combination with a strap having an attaching portion and an adjusting portion, a onepiece buckle comprising a frame havin-g spaced side bars connected by end and intermediate crossbars spaced to denne strap-receiving slots therebetween; said intermediate bars defining a slot of a width substantially equal to the thickness of said strap, said attaching portion of said strap having an end of greater thickness for preventing movement thereof through said slot beyond a predetermined point; one of said intermediate bars constituting a strap-attaching bar about which the attaching portion of said strap adjacent said thick end extends so as to overlie the front wall of said bar and extend rearwardly of the adjacent one of` said end bars; another intermediate bar and the othel` end bar having the opposed side walls thereof curved to define an elongate arcuate slot. extending across said frame for receiving the adjusting portion of said strap; said adjusting portion when threaded through said buckle passing rearwardly of said other end bar, through said curved slot, in front of said intermediate bars so as to overlie the attaching portion across said attaching bar and then between said attaching portionvand the rear wall of said one end bar; the width of said curved slot being only slightly greater than the thickness ci said adjusting portion of said strap to permit said adjusting portion to be freely threaded therethrough and transversely curved by the opposed curved walls of said slot; said adjusting portion' justing portionA relative to said frame is resisted by l distortion of said adjusting portion in said slot and over the edges thereof and by frictional clamping engagement with said attaching portion and said one end bar.

11. A one-piece plastic buckle for securing a strap in adjusted positions comprising a frame having spaced side bars of a thickness greater than the thickness of the strap, said side bars being connected by end and intermediate bars of less thickness than said side bars, said end bars having oppostely curved inner side walls -and having the rear walls' thereof inset from the rear surfaces of said side bars, the inset rear wall of one end bar meeting the curved side Wall thereof in a sharp edge to provide a sharp distortion line for the strap, and the inset rear wall of the other end bar gradually merg ing into the curved side wall thereof to provide a broad clamping surface for the strap, onev intermediate bar having a curved side wall spaced from the inner curved wall of said one end bar to deine an arcuate slot of .a width only slightly greater than the thickness of the strap and having its front Wall inset from the front surface of said s'ideloars and meeting the curved side wall thereof in a sharp edge, a. second of said' intermediate bars being spaced from said otherv end bar to pro- 'vide a slot of sumcient' width to receive plural thicknesses of said strap, said intermediate bars v having -a'slot therebetween for receiving Aan attaching portion of the strap atleast partially en circling said'second intermediate bar and passing through said plural thickness slot to underlie said clamping surface, whereby a strap having its attaching portion secured to and encircling said second intermediate bar and thaving its other end threaded through said curved slot from-the rear of the vframe and through said plural thickness slot from the front of the frame over the attaching portion of the strap will when subjected to tension be held against slipping relative to the frame bythe distortion of the strap in said curved slot and over said sharp edges and by clamping engagement of the threaded portion of the strap between said clamping surface and said attaching portion of the strap.

PAUL W. WHITE.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3192588 *Feb 21, 1962Jul 6, 1965Parva Products CompanyBuckle
Classifications
U.S. Classification24/198, D11/218
International ClassificationA44B11/04, A44B11/00
Cooperative ClassificationA44B11/04
European ClassificationA44B11/04