US1302628A - Separable fastener. - Google Patents

Description

D. BOUR SEPARABLE F QUE. ASTENEH.

APPLICATION man 1uLY2a.191`1.

Patented May 6, 1919.

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DAVID BOURQUE, 0F AMESBURY,:MASSACI-IUSETTS, ASSIGNOR TO G. W. J'. MURPHY CO., 0F AMESBURY, MASSACHUSETTS, A CORPORATION. 0F MASSACHUSETTS.

SEPARABLE FASTENER.

Application filed July 28, 1917.

To all whom t may concern Be it known that I, Davie BOURQUE, a subject of the King of Great Britain, and a resident of Amesbury, in the county of Essex and Commonwealth of Massachusetts, have invei'ited an Improvement in Separable Fasteners, of which the following. description, in connection with the accompanying drawings, is a specification, like diameters on the drawings representing like parts.

This invention relates to separable fasteners and the more particular purpose thereof is to provide a durable device which will act with unimpaired `efficiency for an indefinite' time.

My invention will best be understood by reference to the following description of an embodiment thereof taken in connection with the accompanying drawings wherein:

Figure 1 is a view partly in side elevation and partly in section showing a button fastener theconstruction of which embodies the principles of my invention;

Fig. 2 is a front elevation of the same;`

Fig.`3 is a sectional detail illustrating the position of parts of the eyelet before the button member is `placed in position; and" Fig. 4 is asimilar view showing the position of parts when subjected to undue strain.

All the views are considerably enlarged and are to an extent diagrammatic as far as the dimensions and proportions of the parts are concerned.

Referring now to Fig. 1, `I `have there shown my invention as embodied in connection with a button fastener 5 and its coperating eyelet 7. The button fastener may conveniently be of the kind shown in my Patent 1,201,682, Uct. 17, 1916, and embodies a base 9, a body portion 11 and a rotatable resiliently mounted head or button 13 which may be passed through the eyelet 7 and turned to traversing position as shown in Figs. 1 and 2. The eyelet or female portion of the fastener is of general elliptical form, as seen in Fig. 2, closely to encircle the body portion 11 of the button fastener which enters the same..

Conveniently the eyelet may have a body portion 15 of generally channel shape and prongs 17 may project from the outer flange Specification of Letters Patent.

Patented May 6, 1919.

SeralNo.\183,232. y

side of the eyelet which may substantially close the opening of the channel.

As described in my :3o-pending application, Serial No.` 1li-8,118, iiled F eb.` 12, V1917, objection has been made to button fasteners of this kind because of their tendency to rattle, and in that application I described means whereby the eyelet was made resiliently to grip thebody of the button member so as to prevent such lost motion as would cause rattling while at the same time a positive interlocking connection of the parts of the fastener by means of the head 13 was provided for. The form of my 'invention herein illustrated is an improvement on the device described in the application referred to. As best seen in Fig. 2, I may sever the inner flange of the channel 15, preferably adjacent the extremities of the major axis of the aper` ture so that the eyelet has a discontinuous inner surface including two long segments 23 and two comparatively short or narrow segments 25, and the metal of the short or narrow segmentsmay be bent or curled to form resilient tongues which will grip yieldably the `body portion 11 of the fastener when it is inserted in the eyelet. This feature will be better understood by reference to Figs. 3 and 1. In Fig. 3 I have illustrated the normal position of thesegments 25 before the body 11 of the button fastener enters therein. In that ligure the normal assembled position of the body of the fastener is indicated by the dotted line and it will be noted that the line cuts the segment 25. Consequentlywhen the body of the fastener is placed in the eyelet, the segments 25 will be displaced to the position shown in Fig. 1 and the body will be gripped between the two opposed segments.

Fasteners of this type are quite generally used upon vehicle curtains Aand are usually distributed around the edge thereof. Then the curtain is removed, the strain is not solely an outward one but as the curtain is usually pulled by the edge portion 27 (Fig. l), the spring segments 25 will be forced outwardly farther than the normal position of displacement shown in Fig. l. To prevent the segment from being unduly strained beyond the limit of its elasticity so as to acquire a permanent set, I provide abutment means which will receive and support the segment before it passes its elastic limit. In the present embodiment of the invention these abutment means are furnished by the inner washer 19. By a proper design of the blank from which the eyelet is made the segments may be made of sulhcient length s0 that when curled or bent their end-s will be presented adjacent the Washer in the manner illustrated in Figs. 3 and 1. When unduly pressed outwardly, therefore, they will seat against the same in the manner shown in Fig. 4. In that gure I have illustrated in dotted lines the position of the body portion 11 of the button part of the fastener as it appears in Fig. 1 and it will be noted that the position in which the segment 25 abuts against the washer 19 is beyond the norm-al position of displacement illustrated in Fig. 1,

but the parts are so designed that the washer will receive the segment before it has passed the limit of its elasticity and therefore the latter cannot be so strained as to acquire a permanent set but will always return to its normal position illustrated in Fig. 3 in readiness yieldably to grip the male member 11 in the manner shown in Fig. 1.

From this description of a single embodiment of my invention it will be apparent that I have provided a device which will not get out of order because of the careless handling which it will encounter in ordinary use but, on the contrary, will preserve indefinitely practically unimpaired its original surety of action. It will be understood that I have described in great detail the illustrated form of my invention in order that it might be more readily understood, but that I have done this with a descriptive rather than a definitive purpose. The particular details are not essential, what I do claim and desire to secure by Letters Patent being:

l. An eyelet for a fastening device comprising an annular channeled body having its interior iange severed to provide, one or more resiliently yield-able segments and abutment means adjacent the mouth of the channel adapted and arranged to receive the ends of said segments on undue dis-placement thereof and beforeJ they have been strained beyond their elastic limit.

2. An eyelet for a fastening device comprising an annular channeled body, an annular Washer cooperating therewith for securing the eyelet on a supporting member, the inner flange of the channel having one or more outwardly yieldable spring segments the ends of which are presenting adjacent said washer to abut the same when unduly displaced and before they have been strained beyond their elastic limit.

3. A female member for a fastening device having one or more outwardly yieldable resilient elasping portions 4and having abutment means to receive said portions on excess displacement thereby and before they have been strainedI beyond their elastic limit, whereby to prevent permanent distortion.

4. An eyelet having an interior, discontinuous surface segmental portions of which are bent to provide opposed resilient tongues and also having abutment means to receive the ends of said tongues on excess displacement thereof and before they have been strained beyond their elastic limit.

5. An element of a separable fastener having yieldable portions adapted to be displaced along radial lines by a cooperating element, said portions being resiliently yieldable beyond their positions of displacement and abutment means for limiting such yielding effective before such portions have been strained beyond their elastic limit.

6. In a fastener a male part having a body, an eyelet adapted to encircle said body having inwardly presented resilient portions adapted to be outwardly displaced thereby, said portions being resiliently yieldable beyond their positions of displacement and abutment means for limiting such yielding ,effective before such portions have been strained beyond their elastic limit.

In testimony whereof, I have signed my name to this specification.

DAVID BOURQUE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

y Washington, D. C.

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