US2067736A - Slide operative fastener structure - Google Patents

Description

Jan. 12, 1937. D. SILBERMAN SLIDE OPERATIVE FASTENER STRUCTURE Filed Jah. 14, 1955 2 Sheets-Sheet I m T8 N m 1 v8 H m A 5 W ,1

:WIT'NESS Jan. 12, 1937. D. SILBERMAN SLIDE OPERATIVE FASTENER STRUCTURE 7 Filed Jan. 14, 1935 2 Sheets-Sheet 2 INVENTOR jflV/Dj/L BER/760V BY fl m 4M ATTORNEYS WITNESS Patented Jan. 12, 1937 NTED sTATEs sum: orEaA'rrva FASTENER smuc'rmm David Silberman, New York, N. Y., assignor to Waldes Koh-I-Noor,

N. Y., a corporation of New York Inc., Long Island City,

Application January 1d, 1935, Serial No. 1,633 4 (01. 24-205) This invention relates to slide operative 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 longitudinally of the rows of elements, and the invention has reference more particularly to slide fasteners which are provided with means forcovering or concealing the interlocking elements when such elements are in interlocked position.

In slide fasteners of the above indicated type, it is often desirable to cover or conceal the interlocking elements in order to enhance the 1, beautyof the slide fastener or to prevent damage to the inner or outer garments adjacent to the garment carrying such slide fastener or to protect the fastener elements against exposure to conditions which might injure them or inter- I fere with the satisfactory operation of the slide fastener. It has been proposed to conceal the interlocking elements by covering them with an elastic material such as is disclosed in the Patent No. 1,839,068 to Waschiczeck, issued December 29, 1931 or by covering the interlocking elements with fabric strips which are sewed down upon the elements as shown, for example, in my pending -application Serial No. 600,178, filed March 21, 1932. In all'prior'fastener structures, however, so far as I am'aware, the concealments of the interlocking elements was accomplished by the use of a flexible means separate from the supporting strip of flexible material upon which the interlocking elements were mounted and in many instances such flexible means was composed of a difierent material than that of which the supporting strip was constituted, all of which complicated the structure of the slide fastener and increased the cost of its manufacture.

It is the object of the present invention to provide a simpler, stronger and less expensive construction than has thus far been used for covering or concealing the interlocking elements of the'slide fastener when in interlocked position.

Such a construction is attained, in accordance with the embodiment of the invention, by fold-.

ing the tape or flexible strip which suppo the interlocking elements of the slide fastener along its length and attaching the row of elements to the folded edge, one of the folded portions thereof constituting that portion of the slide fastener which is to be sewn or otherwise attached to the edge of an opening in a garment or other article and the other of such folded portions being folded back again over the root or anchoring portions of the interlocking elements and secured to the upper or lower sides of the fastener elements, as the case may be by stitching or other suitable means, the width of this latter folding portion being such that when the elements are in 5 interlocked position the edge portion thereof abuts the corresponding edge portion of the other supporting strip of the slide fastener to effectively cover or conceal the elements. In a preferred construction the folded edge portion of the sup- 1o porting strip is provided with one or more cords which extend longitudinally thereof and are integrally attached thereto in any suitable manner to strengthen the supporting strip at this point.

The invention will be better understood from 15 the following description taken in connection with the accompanying drawings in which I have illustrated certain desirable embodiments of the invention and in which Fig. 1 is a fragmentary front elevation of the folded supporting strip 20 1 prior to attachment of the interlocking elements thereto; Fig. 2 is a cross section taken along the line 22 of Fig. 1; Fig. 3 is a fragmentary front elevation of said strip with the interlocking elements attached thereto; Fig. 4 is a cross section on the line d-d of Fig. 3; Fig. 5 is a fragmentary front elevation of my improved slide fastener;

- Fig. 6 is a fragmentary rear view of the parts shown in Fig. 5; Fig. 7 is a transverse section taken along the line ii-'7 of Fig. 5; Fig. 8 is a 30 fragmentary front elevation of the folded supporting strip combined with two cords; Fig. 9 is a section on the line 9-9 of Fig. 8-; Fig. 10 is a fragmentary front elevation of the strip shown in Fig. 8 with the interlocking elements attached' thereto; Fig. 11 is a cross section on the line iE-- II of Fig. 10; Fig. 12 is a fragmentary rear elevatlon of a slide fastener embodying the modified form of supporting tape and Fig. 13 is a transverse section taken along the line |3--.I3 of Fig. 40

Referring more particularly to Figs. 1 to 7 of the drawings the reference characters 1 and 2 designate the opposed flexible supporting strips of the slide fastener which may be made of any suitable material but preferably of a fabric material having sufiicientstrength for the purposes of the slide fastener. The supporting strips I and 2 may be constituted of decorative material or may be colored to harmonize with the fabric or material of the garment or other article with which the slide fastener is to be associated. The opposed supporting strips l and 2 each carry a row of interlocking elements 3 of any usual type, the elements illustrated comprising a root or anchor- I securely fasten the elements to the supporting ing portion 3 provided with jaws which are clamped to the edge of the supporting strip and an interlocking portion 5 extending from the edge of the tape and provided with a projection on one side face and a corresponding indentation on the opposite side face which are adapted for interlocking cooperation with adjacent elements extending from the edge of the opposite supporting strip. The rows of elements 3 are moved into and out of interlocking engagement by means of a slider 6 which may be ofusual and convenient shape and construction, such slider having channels for the reception of the opposed rows of elements and having a pull member "i which is to be grasped. for manually moving the slider t longitudinally of the rows of elements.

.As shown in Figs. 1 and 2 of the drawings, each of the opposed supporting strips i and are folded lengthwise to form the folded or flap portions 3 and 9. Intermediate the folded portions 8 and 9 and positioned longitudinally of such portions at the folded edge it thereof is a cord I l which is fixedly attached to-both folded portions by a line-of stitching H2. The row of interlocking elements 3 are anchored upon the thus thickened or strengthened edge iii of the supporting strip by clamping the jaws of the root portions i of the elements to such edge in the usual manner so that the interlocking portions 5' project therefrom, as is clearly shown in Figs. 3, 4 and 7. The effect of forcing the jaws of the root portions l toward each other in order to fabric structure is to closely confine the cord and the folded portions of the supporting strip adjacent to the cord and to compress the folded portions of the strip tightly together along a line immediately in back of the cord. This is illustrated more particularly in Fig. 7 where the compressed fabric indicated as 8' is shown as of narrower thickness than the thickness of the adjacent uncompressed portions of the strip 81. This arrangement of the fastener elements, folded portions of the supporting strip and cord ii cooperates with the line of stitching i? to inseparably associate the cord it with the supporting a strip, thereby providing a strong, durable stringer construction in which the elements maintain their position on the stringer, as shown in Fig. 3, and any tension on the stringers 8 in their interlocked condition, as shown in Fig. 6, will be incapable of effecting disassociation of the stringers from the elements even though the stitches 12 should have become broken or cut.

The folded portion 8 of the supporting strip is adapted to be sewn or otherwise attached to the edge of an opening in a garment or other article and is preferably sufficiently wide to enable such attachment to be made readily and securely.

The folded portion 9 of the supporting strip is folded back over the upper jaws of the root portions 4 of the interlocking elements'S so that the free or outer edge portion thereof extends over the upper sides of the elements'thereby enclosing or covering the root portions of the latter. The width of the folded portion 9 is such that it extends out over the upper sides of the interlocking elements a suflicient amount so that when the row of elements are in interlocked position with the rows of interlocking elements on the, opposed supporting strip, the free edge thereo abuts the corresponding edge of the opposed supsecurely fastened to the upper sides of the elements and to the under strip 8 by means of stitches l3, M, it.

As shown in Figs. 5, 6 and '7 the stitching which associates the folded portion Q with the elements comprise a line of stitches it having looped stitches l6 which penetrate the folded portion 9 of the supporting strip closely adjacent to its free edge and intermediate the interlocking elements on the -supporting strip and stitches i5 intermediate the looped stitches it which penetrate the fabric of the folded portion 8 closely adjacent to the root portions l of the elements and longitudinally of the row of elements, these stitches 55 being locked by a bobbin thread in a manner well understood in the art. The folded portion 9 is thus held tightly against the upper sides of the interlocking elements and to the folded portion 8 so that there is no gaping or loose material along the rear edge of the ridge formed by the upper jaws of the root portions of the elements thereby producing a neat and strong structure. If the supporting strip is made of a ribbed material such as, for example, a grosgrain ribbon in which the ribs thereof run transversely of the row of elements the parallel threads of the looped stitches i l will fit in between such ribs and become invisible to the eye. It is, of course, understood that instead of the stitching illustrated in the drawings, other types of stitching may be used for securing the folded portion to the fastener elements. It is also possible to secure such folded portion to the fastener elements by means other than stitches, such as for example an adhesive material, rubber or the like.

In Figs. 3 to 13, I have shown a slightly modifled construction in which an additional cord 26 is positioned longitudinally of the edge it of the supporting strip to the rear of the cord ii and against the rear side of the folded portion 8, such additional cord being also securely held to the supporting strip by the line of stitching 52. The

cord 2! is also clamped between the jaws of the anchoring portions of the elements in my modified construction, as is clearly shown in Figs. 12 and 13 thereby materially strengthening the supports for the elements of the slide fastener.

No claim is made herein broadly to a slide or:- erative fastener structure in which the supporting strip is folded along its length to provide afolded edge to which the row of interlocking elements are attached and in which one of the folded portions of said supportingstrip is reversely folded over the interlocking elements so as to substantially cover the row of elements and is secured to the covered sides of-such interlocking elements, but what is claimed herein is the specific and novel arrangement described hereinabove and defined in the following claims.

I claim:

1. A fastener structure of the slide operated type comprising a flexible supporting strip folded along its length to form a folded edge, a flexible element positioned intermediate the folded portions of said supporting strip adjacent to said folded edge and extending longitudinally of said strip, a row of interlocking elements having atadapted to clinch the edge portion of said strip about said flexible element so that the folded portions of the strip are compressed together tightly along a line immediately in back of the flexible element and the latter is securely encased between said folded portions, one of the folded portions of said supporting strip being reversely folded over the attaching portions of said elements and substantially covering the row of elements and a line of stitching for securing said reversely folded portion closely against 'the fastener elements.

2. A fastener structure of the slide operated type comprising a flexible supporting strip folded along its length to form a folded edge, a flexible element positioned intermediate the folded portions of said supporting strip adjacent to said folded edge and extending longitudinally of said strip, a row of interlocking elements having attaching portions for securing them to the folded edge of said supporting strip, the attaching portions thereof being in the form of jaws which are adapted to clinch the edge portion of said strip about said flexible element so that the folded portions of the strip are compressed together tightly along a line immediately in back of the flexible element and the latter is securely encased between said folded portions, one of the folded portions of said supporting strip being reversely folded over the attaching portions of said elements and substantially covering the row of elements and a line of stitching for securing said reversely folded portion closely against the fastener elements, said line of stitching including transverse stitches penetrating both folded portions of the'supporting strip and adapted to prevent gaping of said reversely folded portion along its line of contact with the other folded portion.

3. A fastener structure of the slide operated type comprising a flexible supporting strip folded 7 along its length to form a folded edge, a cord extending longitudinally of said strip and positioned intermediate the folded portions of said supporting strip adjacent to said-folded edge, a line of stitching extending along the folded edge portion of said strip for securing said cord in position on the strip, a row of interlocking elements having attaching portions for securing them to the folded edge of said supporting strip. the attaching pore tions thereof being in the form of Jaws which are adapted to clinch the folded edge portion of said strip about said cord so that the folded portions of said strip are in contact with each other along a line immediately in back of said cord, thereby encasing the latter within the folded edge portion of the strip, one of the folded portions of said supporting strip being reversely folded over the attaching portions of said elements and substantially covering the row of elements, and a line of stitching adapted to secure the reversely folded portion closely against the fastener elements and to prevent gaping of said portion along its line of contact with the other folded portion.

4. A fastener structure of the slide operated type comprising a flexible supporting strip folded along its length to form a folded edge, a flexible element positioned intermediate the folded portions of said supporting strip adjacent to said folded edge and extending longitudinally of said strip, a row of interlocking elements having attaching portions for securing them to the folded edge of said supporting strip, the attaching portions thereof being in the form of jaws which are adapted to clinch the folded edge portion of said strip about said cord so that the folded portions of said strip are in contact with each other along a line immediately in back of said cord, thereby encasing the latter within the folded edge portion of the strip, one of the folded portions of said supporting strip being reversely folded over the attaching portions of said elements and substantially covering the row of elements, and stitches penetrating said reversely folded portion along a line approximately over the folded edge of said supporting strip and penetrating said other folded portion alongside its line of contact with said reversely folded portion in such manner that the latter is held closely against the fastener elements and is prevented from gaping along its line of contact with the other folded portion.

DAVID SILBERMAN;

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