US1990464A

US1990464A - Interlocking fastener structure

Info

Publication number: US1990464A
Application number: US743517A
Authority: US
Inventors: Silberman David
Original assignee: Waldes Kohinoor Inc
Current assignee: Waldes Kohinoor Inc
Priority date: 1934-09-11
Filing date: 1934-09-11
Publication date: 1935-02-05
Anticipated expiration: 1952-02-05

Description

Feb. 5, 1935. n. SILB ERMAN INTERLOOKING FAS TENER STRUCTURE Filed Sept. 11

INVENTQR I ,Dm m .514 BE/iM/M/ 1 7 BY f 3 z I 4 i WITNESS EWW 8 ATTORNEYS Patented Feb. 5, 1935 UNITED STATES PATENT OFFICE 1,990,464 INTERLOCKING FASTENER STRUCTURE David Silberman, New York, N. Y.,

Waldes Koh-I-Noor, Inc., Long assignor to Island City,

4 Claims.

This invention relates to slide fasteners of the type in which opposed rows of interlocking elements are mounted respectively upon the edges of strips of flexible material and are adapted to be interlocked or disengaged by a manually operated slider movable lengthwise longitudinally of the rows of elements.

The object of the present invention is to improve such slide fasteners particularly with respect to providing more reliable means than have thus far been used for limiting the movement of the slider at the end of its travel over the elements in either direction.

Slide fasteners are generally made along the lines of the expired Sundback Patent 1,219,881 or in a form in which the metal elements are covered by elastic material, as in the case of Waschiczecks Patent No. 1,839,068, or in which the metal elements are concealed by fabric strips sewed down upon the elements as shown, for example in my pending application Serial No. 600,178. In'all such structures the two tapes on which the metallic elements are supported are usually permanently united at one end by means of locking members in the form of clips provided with prongs penetrating the fabric material and clinched against the tapes, the body of the lock-- ing' members spanning and permanently uniting the edge portions of the tapes. This method of uniting the tapes'has not proved entirely satisfactory because of a certain unsightliness of structure and because of the insuflicient holding power of the clips against impacts of the-slider when the slider is either carelessly or over-vigorously drawn to the position where the tapes are united by the clips and the fabric-cutting effect of the flat parts of the clip which extend through the stringer in line with the movement of the slider. In some instances where such fastener structures are used in connection with articles where they are inherently subject to somewhat vigorous usage, as is the case where they are applied to the fly openings of trousers, there is the danger that the locking clips will be torn loose from the tapes or become bent or broken when the slider is forced.

down hard against the locking clips too'often and too strongly.

It has also been customary to add to the end of each row of metal fasteners remotest from the point where the tapes are connected by the locking clips, stop members to prevent the slider from being drawn past the rows of elements after they have all become locked. Here again a condition resulted from the use of metal stops or clips clinched in or against the tapes. which was not wholly satisfactory for reasons similar to those aboveset forth with respect to the locking mem-- bers.

It is the object of the present invention to provide an improved separable fastener construction which will eliminate the above inentioneddifficulties and particularly to provide sightly stop and locking members of sturdy constitution adequate to withstand the strains of vigorous use and associated, in the region of the locking members, with a fabric cross-bar serving as a buffer or cushion for the locking members when the slider is drawn to the fully open position of the fastener structure.

Other objects and advantages of the invention 1'5 will become apparent from the following description taken in connection with the accompanying drawing in which I have shown, for the purposes of illustration, one embodiment which my invention may assume in practice. In the drawing, 2Q Fig. 1 is a top view of the covered fastener tapes; Fig. 2 is a perspective view of a portion of a pair of trousers showin my improved fastener structure applied to the fly openings thereof; Fig. 3 is an enlarged front view of the lower portion of the fastener structure shown in Fig. 2; Fig. 4 is a rear view of the parts shown in Fig. 3; Fig. 5 is a cross-section taken along the line 55 of Fig.

4; Fig. 6 is a view similar to Fig. 4 showing the slider in its lowest position; Fig. '7 is a section of the eyelet portion of Fig. 1 and Fig. 8 is a crosssection taken along the line 8-8 of Fig. 1.

In Fig. 1 the tapes, to'which the metal fastener elements'9 are attached at a thickened edge portion of said tapes, are indicated at '7 and 8.

Covering strips

11 and 12 .completely cover the interlocked elements and are positioned with respect to the tapes '1 and 8 as well as with respect to the fastener elements 9 by the stitches 24. The

construction is shown in greater detail in my 40 copending application Serial No. 600,178. The parts marked 14, 15 and 23 represent tubular metallic elements or eyelets positioned through the cover strips and the thickened portion of the tape. 10 indicates the slider.

Referring more particularly to Fig. 2 of the drawing, the trousers to which the fastener structure is applied, includes a right leg section 1 and a left leg section 2. As is usual in trousers of this type, the right fiy 3 is secured to the edge portion 59 4 of the right leg section and the left fly 5 is secured to the inner side of the edge portion 6 of the left leg section, the left fly 5 and edge portion 6 of the left leg fabric overlapping and completely concealing the right fly 3 and the edge metal bar 16.

4 of the right leg section to which it is secured. A strip of lining or stiffening material may be secured to the left fly 5 intermediate such fly and the inner side of the edge portion 6 of the left leg in the usual manner and a similar lining may be used in connection with the right fly 3.

The tape 7 and the cover strip 11 of the right fly stringer are secured to the edge portion 4 of the right leg section 1 between such edge and the right fly 3 so that the edge portions of such tape and cover strip and the interlocking elements attached to the tape project over and in front of the right fly, as shown in Fig. 2. The tape 8 and the cover strip 12 of the left fly stringer are secured to the inside face of the left fly 5 so that when the fastener is closed the left fly overlaps and completely conceals the fastener structure and the edge portion 4. The left fly stringer may be first sewed on the left fly before any part of the fastener structure, including in this case the left fly itself, is sewed to the leg section of the trousers or the left fly without the stringer may be first sewed in position and the fastener then sewed in place by first sewing together the right fly stringer to the right fly and the edge of the right leg section and then sewing the left fly stringer to the left fly. The two leg portions are, joined together in the usual manner after the fastener has been secured in position.

The metallic elements are customarily attached to a thickened or reinforced edge of the tape as indicated, for example, at 25 in Fig. 5. I have found that the thickened edge of the tape is sufficiently strong to support in a thoroughly reliable and tenacious manner a tubular or eyelet type of stop. The presence at this point of the covering strip held in place by the stitching 24, provides sumcient fabric material to insure a flrm anchorage for the stops. The eyelet struc- Fig. 7) has a tubular body 23 having an integral annular flange 26 at one end and is upset at 27 against a small metallic washer 28 at its other end. The relatively small rounded top surface 26 of these eyelets gives them a decorative effect. The eyelets themselves, penetrating the whole of the several layers of fabric, operate as firmly anchored stops which are albe dislodged no matter how vigorously the slider is drawn against them. Being tubular, they develop no fabric-cutting effects. They are, at least at the upper ends of the rows of elements slightly offset or out of alignment with respect to the rows of elements and this, despite their small dimensions (usually less in diameter than the length of a fastener element) operate as a stop for the slider after the latter has locked all the fastener elements together.

At the other end of the rows of metallic elements a similar eyelet structure is used to form the locking members which hold the tape together and prevent the slider from passing. In this case, however, the eyelets not only pass through the tape but also through an additional cross-bar 17 made of fabric and preferably having a corded or reinforced edge 18. The

eyelets

14 and 15, instead of having their own individual washers as in the case of the eyelets 23, have a single washer in common. This washer is in the form of a flat The two

eyelet members

14 and 15 after penetrating the fabric portions are bridged by the bar 16, the edges of the eyelets extending through the apertures in said bar and cover strip and the thickened base 4 being thereupon upset against the bar. operations can be ing machine. The stringers or tapes ric cross-bar 17 extends laterally of the fastener structure at thereof extending its lower end, the body portion over the elements at the bottom of the rows and the lower edge portion thereof being positioned intermediate the

tapes

7 and 8 of the fastener and the spacing bar 16 of the twin eyelet. As shown in Figs. 3, 4 and 5, the

eyelet portions

14 and 15 of the twin eyelet securely attach the lower edge portion of the crossbar 17 to the opposing edge portions of the tapes and cover strips immediately adjacent to the bottom elements of the fastener structure. The cross-bar 17 preferably consists of a piece of 'tape material similar to that of which the tapes movement of the slider. The-

edge portions

19 and 20 of the cross bar are permanently attached to the inner sides of the

tapes

7 and 8 by the lines of

stitches

21 and 22 which may be made to participate in securing the stringers of the fastener to the left and right flies of the trousers thereby holding thebody portion of the cross-bar tightly up against the inner sides of the interlocking elements immediately above the twin eyelet. Thus when the slider 10 is forced down to open the slider, its lower edge first engages the beaded portion 18 of the cross-bar which cushions the force exerted on the slider and retards it from coming into contact with the twin eyelet thereby eliminating the danger of separating the lower ends of the fastener stringers due to forcing the slider down the slider after long usage succeed in spreading or stretching the beaded portion of the cross-bar.

sufllciently to move it toward the

eyelets

14, 15

- or to pass underneath, the taut fabric of the body portion thereof is always intermediate the lower end of the slider's under wing and the twin eyelet so that there is always sufficient material to cushion or brake the downward force of the slider which by reason of this construction hardly ever directly contacts with the twin eyelet.

In practice the stringers are sent from the place of manufacture to the garment maker without any stitches such as 21 or 22 and those stitches are put in by the garment maker in connection with the attachments of the stringers to the garment, but the correct position of the fabric cross piece 17 is, of course, determined by reason of the definite eyelets 14 and In order to tener structure inadvertently opening while in use,'it is desirable to provide a special means for locking the slider 10 with respect to the tape after it has interlocked the two rows of fastener elements. As shown in Figs. 1 and 8 of the drawing this may be accomplished by securing an eyelet structure adjacent to the thickened or reinforced edge of the tape and in alignment with respect to the ro of elements so that it 15 and their twin cross-bar 16.

hard too often. Should I association with the two prevent any likelihood of the faswill pass within the slider 10, and providing a 'jection will be inserted in the opening of the eyelet structure, the pomtion of the handle 31 being maintained by the yoke 32 of the dider.

The eyelet structure in thiscase is similar to that of the

eyelets

14, 15 and 23 in that it has a tubular body 33 having an integral annularflange 34 but instead of being upset at its other end against a washer as in the case of the other eyelet structures, is upset at 35 against the under surface of the tape so that the fastener structure does not project materially beyond the outer surfaces of the stringer and will readily pass into the slider. The eyelet 33 is preferably positioned with respect to the stop eyelet 23 and the last interlocking element in the row so that when the slider reaches the end of its path of movement in closing the fastener structure, the eyelet 33 will be correctly positioned in the slider for engagement by the projection 30 on the handle of the slider. c

The construction described presents an exceedingly sightly and attractive product with ample strength for purposes of stoppin the dider at the upper eyelets 23 when the elements are all interlocked and with suiiicient flexibility or cushioning effect at the opposite end to prevent or delay any direct contact between the slider and the metallic cross-bar 16 when the elements are all disengaged from each other while the

lower eyelets

14 and 15 together with their cross-bar 16 present a powerful resistance to dislodgment of the parts. The size or length of the fastener structure may be printed or stamped on the fabric cross-bar 17, as shown in Fig. 6, the fabric 1 material of the cross-bar preferably being of such color so that such printed matter can be clearly and readily seen. 7

While I have shown and described one embodiment which my invention may assume in practice, it will be understood that this is merely for the purposes of illustration and that various other forms may be devised within the scope of the invention as defined by the claims.

I claim:

1. A fastener structure of the slide operated typecomprisingapairoffabricstrips reinforced at the edge portions, a row of elements on each strip fastened to the thickened edge portion of the strip and adapted to interlock with the row of fastener elements on the other strip, a slider to effect opening and closing of the fastener structure, a rigid tubular element situated at one end of each of the rows of fastener I" u. I vi elements, each of said tubular elements having an integralflanged visiblehead atoneend,saidelements being positioned slightly out of t with their respective rows of fastener elemmts andextendingthroughtheedgeoftheir respective strips, a single twin washer member adjacenttothe other end of eaehsuchtnbularelw ments and holding said elements together, an upset turned-back edge at said other end of each of such tubular elements tightly pressed against and upon said washer member and a w 1 w, of fabric between the washer and the of the fabric supporting strips and positioned and adapted for complete attachment to the strips by sewing seams extending through the strips adjacent to the rows of fastener elements so as to present a cushioning obstacle to the slider in movmstothefully structm'e aarismerm meormsuaeo mm' typeeomprislngapairoffabrlc supportingstrips,

arowoffastenerelementsoneachstrlpadapted tointerlockinin relation with the row offastenerelementsontheotherstrimanoperatingslideruponslidingmovementthereoftoefl'ectclosingandopeningofthefastener structure,andabottmnstoppermanently securingsaid supportingstrips togetheratoneendof thefastenersiructureandincluding (a) means adaptedtocushiontheforceoftheslideratthe endofitsopeningmtsothattheslideris stoppedwithoutstxesstendingtoseparatethe 15 supportingstrips,saidmeanscomprisingacmss strip of flexible material extending 'of thefastenerstructure, (b) arigidbarheldin pressedrelationtheundersideofthe fastenersimctureadiacenttotheendsofthetwo 2o rowsof elementa (c)'tuhularpenetratingthestripsandthebar, (d) atthetopendsofthe-inbulm'members theuppersurfacesofthefabricsia'lps inrelation.(e)upsetedgeatthe g5 teendsofthetubularmembersandbearing tightlyagainsttheimdersideofthebaradiacent tothepointswherethetuhularmembersektend throughsaidbarandd) stitchingsecurelyfasteningtheendportionsoftheiiexiblecrossstrip sothatthebodyportionthereoflieatie tly against the under sides of the fastener elements inadvanceoftheclomdendofthefastenerstructure.

3. a structure such as defined in claim 2 in whichtheeolorofthecrossstripofiiexible'ma- 'terialjssuchthatmatterprintedthereoncanbe go 4.Afstruch1reoftheslideoperated", typeapairoffabrlcsupportingstripa' arowdfastenerelementsoneaehstrlpadapted tointerlockininrelationwiththerow offastenerelementsontheothersh'lmaslider adapted'uponslidingtthereoftoeflect closingandofthefstructure,a handlemountedonsaidsliderandadaptedtobe grasped for manually moving the slider lengthwiseofthefastener'structuraastop matleastmeof'thestrip a iacent totheupperendofitsrowoffastenerelements, andmeansforlockingthesliderwithrespectto saidstripafterithaselosedthefastener structure, said means a relativelyrigidhollowmemberpenetratingsaidstrlp andbeingpermanentlytosaidstripadiacenttotheupperendofitsrowoffastenerelementsandadaptedtopasthroughsaldslidenandaprojectionearriedbythehandleofsaid sliderandadapt tobeinsertedintheopeningof the hollow member when the handleismoved downtheoutersin'faceoftheslidensaid hollow member being so positioned withrespect tothelastinterloeking elementin-therowand saidstopthatwhenthesliderisstoppedbythe latterattheendofitsclosingtsaid hollowmemberwillbeeorrectlyedinsaid slider for t by the proieetiouron the handleoftheslider. 7o

DAVID.