US2160364A - Slide fastener - Google Patents

Description

H. L. KANNOR SLIDE FASTENER May 30, 1939.

' Filed Marh 19, 1937 vvv...

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Patented May 3o, 1939 UNITED STATES SLIDE FASTENER Henry L. Kannor, Douglaston, N. Y., assignor to Talon, Inc., a corporation of Pennsylvania .Application March 19, 1937, Serial No. 131,879

2 Claims.

My invention relates to articles employing slide fasteners and more particularly to that class of articles in which the slide fastener extends around the edge portion thereof.

Heretofore in the application of' separable fasteners to the edges of articles having two walls to be fastened together, such as key cases, billfolds and the like, it has been found that when the fastener is closed the 'tape stringers of the fastener tend to extend or bulge in a' humped position beyond the edges of the article between the fastener elements and the edges of the article and fastener elements. 'I'his is especially so if in the application the fastener is run around a curved portion or corner of the article. In such a case in the natural use of the article this bulging portion of the tapes is subject to excessive flexing and wear and tends to wear out the tapes at those points ina short period of time due to so-called pocket abrasion or ordinary usage, thus ruining the fastener and making the article unfit for further use. It is therefore among the objects of my invention to provide a means to prevent this excessive wear on the tape stringers.

Also in attaching the tape strlngers of the fastener to the edges of such articles it has usually been the practice to cement the stringers to the edges of the openingand later further secure the fastener by sewing. It is necessary to space the fastener elements from the edges of the opening vin order to provide clearance for the slider in its travel along the fastener elements. It has been found to be a rather diflcult operation to attach the stringers to the edges of the opening, and at the same time, maintain a continuous uniform spacing between the edges .of the article and the fastener elements, especially if the fastener is to be run around a corner, without some means'to properly gauge this spacing and keep it even. This usually results in a wavy or humped application of the fastener making it diicult to operate as well as presenting a bad appearance.

It is therefore an object of my invention to provide a simple .and inexpensiveV means for spacing and evenly attaching aseparable'fastener to the edges of an article.

It is a still further object of my invention to provide a wear resisting means which is serviceable and effective in its operation and at the same time, not interfere with the opening and closing action of the fastener.

Other objects and advantages of my invention will more fully appear during the course 'of the following specifications.

In the drawing: ,y Fig. 1 is a perspective view of a key case embodying my invention;

Fig. 2,is a plan view of a portion of one of l,

the stringers;

Fig. 3 is a sectional of Fig. 1; and

Fig. 4 is a cross-sectional view similar to Fig. 3, showing the application of a fastener to the edge of an opening not embodying my invention.

For the Ipurpose of illustration, I have shown in Fig. l my invention incorporated in a key case havingv front and `rear Wall portions or panels 5 and 6 respectively, and a separable fastener along the adjacent edges for holding them in closed position. 'I'he fastener runs across the bottom, up one side, and across the top and comprises a pair of tape stringers 1 and 8 having a series of closely spaced interlocking fastener elements 9 along their adjacent edges and a slider. I0 for engaging and disengaging the same.

As the subject of this invention, I provide longitudinally extending wear-resisting members, herein flexible cord members H which are attached to the outside surfaces of the tape stringers 1 and 8. The cords extend the length of the fastener and are adapted to lie along the opening next to the free edges I2 of the `walls of the case. They may be attached to the stringers in any suitable Way, preferably by means of stitching I3.

view taken on line 3-3 If the 'stringers are allowed to bulge as at I4,

shown in Fig. 4, beyond the edges of the case, as they usually do in such an application, the stringers` will rapidly wear out at these points due to pocket abrasion or through natural usage, thus in a short time making the fastener and case unt for lfurther use. To overcome this I provide these cords which. prevent the stringers from bulging or humpingat the edges of the case eliminating any wear on the stringers at the edges of the case, as shown in Fig. 3, and extend beyond and above the edges of the case, and are adapted to absorb any wear that might occur along the edges of thecase. These cords are, of course, preferably attached to the tape Stringer (see Fig. 2), before the fastener is applied to the case or to the article in which it is to be used for reasons toA be hereinafter explained. They are attached in spaced parallel relation, as shown in Figs. 1, 2 and 3, a short distance from the, fastener elements in order to provide clearance for the slider in its movement along the elements and stringers to open and close the same.

It has been found rather difficult to properly apply slide fasteners to openings in cases and the like articles, due to the fact that material of which the article is made is usually rather stiff and not very pliable. This results in a humpy and uneven application of the fastener. Therefore, it can be easily seen that these cords not only serve as wear resisting or wear absorbing members, but are also useful as a guiding or gauging means in' applying the fastener to the edges of the case or article as follows:

First preferably suitable cement is applied continuously along the attaching portions of the stringers, which is, namely, the top side back of the cord members, and along edges of the case or article. The edges of the case and the attaching portions of the stringers are placed in overlapped relation with the tape stringers on the underside (see Fig. 3), so that the free edges I2 of the case abut against the cord members l I. Thus it will be seen that if the cords are properly attached to the stringers in parallel spaced relation and the free edges of the case made to abut against the cord members, the edges of the case will in turn be evenly spaced from the fastener all along the opening, and a neat application will result. It is preferable then to further secure the attaching portions of the stringers to the edges of the article by means of the lines of stitching I5.

As a result of my invention .it will be seen that I have provided a wear-resisting means for separable fasteners, which will increase the life of the fastener and consequently the article to which it is applied, which also serves as a guiding means to aid in evenly attaching a fastener to the opening edges of an article.

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

What I claim as my invention is:

1. In an article having two walls foldable toward each other to form a container, a separable fastener for holding the free edges vof said walls together consisting of a pair of tape stringers attached to the free edges of the walls having interlocking fastener elements along their adjacent edges, a slider for engaging and disengaging the same, and a longitudinally extending bead member attached to "the outer .side of each of said tapes and adapted to lie next to the free edges of said walls, said bead members consisting of a pair of parallel flexible cords attached to the tape stringers and spaced from the interlocking elements thereof.

2. A card case or the like consisting of a pair of substantially rectangular walls defining a pocket between them and a slide fastener for closing the pocket extending around at least two of the corners and between the outer.edges of the walls, the slide fastener consisting of a pair of tapes being secured to the edges of the Walls, and a longitudinally extending flexible bead attached to the outer side of each of said tapes Where it passes around the corners of said walls, said beads being spaced a substantial distance from said interlocking elements.

HENRY L. KANNOR.

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