US1652139A - Snap fastener - Google Patents

Description

Patenteci Dec. 6, 1927.

GEORGE I-IENRY ELWELL, (VJZE CLEVELAJD', orrio3eserenouxroCrr1errresmnrrmr coM= PANYQ OEGAMBR'DGE, MASSACKUSETT'S, ACGEPORATION 'OFMAINE.

Application filedctober31, 1923. Serial No. 671,965.

7My iiiVention' reites to iinproveinents in snap faStener-s andinore-partieularly to stuci endsocket .asteneis separable only by a relativetipping movennent in a certain di- 'rectioii; i

nvei' rigid tud member t-liat' may be used in eombinatio1i With a-"sockei; memberemployingb resiliei1t ele1i1entsuch as a split spring ring.

thiS aud other objec'ts inview, as

WVitli willfmore fully hereinafter appear, che in vention=censists incertainfeatures of nove consi'riiction and'arral1igei1ient of parts bereinafter described, illustrated in the accom panying drawing and particularly pointed out wherein patentable novelty is claimed for certa-in eatures of the device, itbeing ,understood that within the scope of WhLt hereinafter thus is claimed various changes in form, proportion, size and minor details of the construction can be made wit-hout departing from the spirt or 1nodifying any of the advancages of the invention.

25. The following is the description of an embociiment of niy invention, reference being had to the accmpanyingdrawing, in which Figure 1 is a side view of a stud; Figure2 is a top view of the saune studi With shouicler shown in dotted 1ine; Figure 3 is a side view of interlocked astener members 1nounted on abric, the socket member being'partly shown in cross-section; Figure 4 is {i bottoni view of socket member showing, partiy in dotted line, the normal position O split ring; and Figure 5 is a view si1nilar.to the next preceding figure excepting thaa the split ring is shown in shifting position es When members are 'interiocked.

Ref-erring more particularly to the drawing, in which similar Parte are simiiariy numbered, the stud member has a base 1, neck 2 end head 3, a,s best -shown in Figures rif 1 and 3,and proper attaehing 1neans 4, us

shown in Figure 3. The head 8 and the neck 2 are so f0rmed that the head 3 pre sents a rearwardly facing abrupi; shouider 5 nearly encompassing the stud Ine1nber, or on three sides thereof as shown in dot-ted line in Figure 2. A1; the fourth side ,of the stud the neck portion 2 is extended lateral-ly with relation to the head' of the stud as clearly shown in Figs. 1 and 2, so that the head 3 presente to that portion of the neck 2 a rounded Sh0u1det 6, as best shown in Theobject ofmy invention is to pr0vide a resiiient 1na-ns aciaped t0 interiockii1gijrf Figure 1'. The'i1ejck2of t1ie Studis, tiie'refoire, made egg-shaped in cro'ss-sec-ion for. the purpose of prviding the. three-Sidd locking engageinent Wili thefocke't' ibis egg-slialped cross-sect-ion being best ,ilhis tra't'ed in dotted iines, Fig. 2. VVhile hfrve: shown in Figure 3 a socketinember of zr prrticui&r coristruetionyet that ineinber n1ziy be of any other constructin empi0yinga1iy engage a. stud niember of t1ie type abovedeseribed. For thepurpose of deseription. I have prefer1teci' to show! in Figures" 3,f:t,; and 5, a soeket ineniber enqloying a sp1il; ring 7, formed from spring wire, as t-he resilient element.

In operation, the soeket member is passed onto the stud member and as head 3 enters 'the stud passage it engages the inner surface of ring 7 and spreads thai; ring suffi- 7 ciently te allow the head 3 to pass through the ring 7 which immediately t-hereafter retracts as soon as it is permitte'd to engage neck 2. Ring 7, nezirly throughout its entre circumference, is thus ioclged behind the abrupt shoulder 5 and is thereby positively loeked against direet withdrawal end against tipping -of the socket member in any direction emanating from any portion ci che abrupt shoulder 5. In assuming the 8. loeked positi1i, as Shown' in Figure 8, the ring 7 is shifted fron1 its nor1nal position, ELS shown in Figure 4, to the position shown in Figure 5. T0 separate the I"a stener members the socket me1nber inust be tipped so thai; the rin-g 7 is first forced over the rounded shoulder 6 of the st-ud head 3 and thus spreacling ring 7 untii ii; siips fr0m under and behincithe abrupt shouider 5 and releaseg che socket member'from its inter- 93 10cked engagement with the stud memb-er.

VVhat I claim is-:

1. A snap fastener coniprising, in combination, a stud and a soeket adapted to be engaged by? direct axial 1novement of one toward theother, said sockt presenting a stud-receiving aperture intersected by resilient studi engaging means, a cooperating "stud having head and neck portions, said gaging 1neans to prevent separation of the fastener when stress s exerted at any one 01 2111 of the sides where said ebrupt shoulder is previded, end a laterally extended porton 01 said neck provdecl at the fourth side of the stud te previde a smoethly rounded surfece ai: seid fourth sde whereby said resilent stud-engaging meens mev be dis engaged frem che stud by a pull edjecent seid luterally extending portion.

2. A snap fesener eomprisng, in cembinetion, a stud end a soeket adapted to be engaged by drect axia1 movement of' one to- Wa1d the other, said secket presenting e studleceiving' aperture intersccted by resilent stud-engaging menns, a. ceoperafng stud having L base, a hez1d end a neck between se.d base and said hem. sad neck beng subshmtinlly egg-sheped in cross-seetien 1'0 prm*ide 2m alnrupt sheuder hetween the head and neckela flnee sides fm interlecking engagement wth sud resilient 1nenns When said stud end socket are engnged, and to provide at the fourth sle e Wall portion substentally even with the head to permit the resilient 1nez1ns to be guded over the heed When a pull exerted ai; suid fourth side.

3. A snep fastener comprsng, in combnaton, a sturl end e socket adaptefl. o be engeged by direct exia nlovenient' of one toward the other, said socket presenting a stud-receiving aperture intersected by a ring type resent studengaging spring, e .coeperatng stud huving e base, a head end e neck between sad base end seicl head, suid neck beng eflset tmmrrfl onesde relative te seid head te provide un abrupt sheulder between the lw:ul end neek et three sdes f01' intcrlecking e1lgrngen1e1i1 with said resilient meens when saic1 stvud end socket are en guged, end in previde nb the fourth sde a \\':111 pertien subsizmtnlly even with flle11ead te permt the resilient means to be guided ever [ho hend when a pull exerted et seid feurtzh side.

GEORGE HENRY ELWELL.

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