US2385880A - Snap fastener - Google Patents

Description

Oct. 2, 1945. F. H. PETERSON ETAL i 42,385,830

sNP FATENER Filed may 8. 1944 Patented Oct. 2, 1945 SNAP FASTENER Frederick H. Peterson, Watertown, and Rollin R. Clarke; Waterbury, Conn., assgnors to The Patent Button Company, Waterbury, Conn., a corporation of Connecticut Application May 8, 1944, Serial No. 534,604

4 Claims.

Our invention relates to newand useful improvements in snap fasteners and more particularly to the socket member of the snap fastener.

In the present application, the socket member is so made that a part of the same is provided f the perforations in the plate and then deformed to tightly hold the socket member to its cloth.

Still another object of the invention is to provide a socket made of one piece wherein the same type .of clamp plate may be utilized either with the present form of invention or with the invention disclosed in the companion application.

Still another object of the invention is to provide a, socketl that may vbe stamped and rolled from one piece of metal to thus cut down any assembling operations, and with which, of course, a cla-mp plate will be used to hold the socket member to its cloth. Y

Still another object of the invention is to provide a socket member which is so constructed that, regardless of the rotated position of the prongs of the clamp member in an attaching ma,- chne, the prick punches or small perforations will quickly adjust the prongs into a desired position so that the prongs will be readily guided and deformed within a receptive channel in thesocket member to thus tightlyclamp the socket member to its cloth. y v

With these and numerous other objects in view the invention consists of new and vnovel constructions andcombination of parts as will be hereinafter more fully described.

Referring now to the drawing showing the preferred embodiment:

Fig. 1 is a top plan view of the socket member attached to its piece of cloth, 4

Fig. 2 is a bottom plan thereof.

Fig. 3 is an enlarged horizontal section taken on line 3-3 of Fig. 1, the stud being shown in dotted lines,

Fig. 4 is an enlarged top plan view of the body member,

Fig. 5 is a view similar to Fig. 3 but before the socket is clamped to its cloth, and

Fig. 6 is a sectional view of the clamp plate showing one of its prongs.

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Referring now to the several views, there may be seen What we term a clam-p plate l, having its outer edges slightly dished, the plate being cut out centrally as at 3, and then slightly cut back as at 4 but leaving the metal to form two prongs 5, which are then bent downwardly at right angles to the body of the plate.

Referring for the moment to Fig. 3, we have shown the clamp plate with its prongs 5, as having passed through the cloth 6, to hold the socket member l, in position. Also for the sake of clearness of illustration, we have shown in dotted lines the stud 8, which is to be received by the socket member 1. Referring noW to Figs. 3 and 5, there may be seen the inwardly extending rim 9, which is formed at the bottom of the substantially cylindrical wall I0, which Wall is provided with a plurality of slots Il that extend substantially throughout the height of the wall I0, to thus provide a plurality of resilient gripping fingers I2.

It is these fingers l2 that snap over and off of the head of the stud 8, when the snap fastener is attached ror removed from its stud.

The metal of the wall I0, is bent back on itself as at I3, but is slightly spaced from the rear of the wall I0, as in the space is to be tucked the outer peripheral edge of the body member 1 when it is in its final form.

The metal that is bent back on itself is then provided with a slightly lowered depressed channel I4, and formed in the bottom of this concentrically arranged channel is a plurality of prick punches or relatively small perforations l5, as may be seen in Fig. 4. The outer wall of the concentric channel I4 then extends outwardly in a horizontal position to form the rim I6.

Extending downwardly from the rim I6 the metal is bent in a semicrcular manner to form the receptive channel l1, and the metal which is the outer peripheral edge before the body or socket member l is formed, is then tucked between the concentric depressed channel I4 and the rear of the upstanding cylindrical Wall I0, to thus provide an integral socket member of relatively great strength.

To secure the socket 'l in place, the clamping plates l will be placed in one hopper of an attaching machine (not shown) while the body member or socket 1 will be placed in a second hopper, and the two parts fed to an attaching station.

The cloth 6 or the fabric will then be placed between the clamping plate l and the socket member 1 and a plunger of the attaching ma,-

3 claim as new and 4desire Patent is:

chine descends to force the prongs 5 through the cloth I.

Then, due to the multiplicity of prick punches in the depressed channel I4, the diametrially opposed prongs will locate certain prick punches I5 and beY forced through the metal, and the prongs then irnpinge on the bottom walls of the channel I'I, wherethey willgbe guidedyand rformed in the second mentioned channel during deformed asshown in Fig. 3, to tightly grip the v to the cloth.

attaching operation to thus secure the socket to its carrying medium.

2. In a one pieceY socket member for snap p fasteners, alwall defining a centrally arranged j forming arsecond channel and spaced beneath Should Vit so happen that the, diametrically op-;

posite prongs are not in direct'alignment withany certain prick punchesV or indentations, still i the prick punches or indentations are'so close together that the prongswill rotate slightly in Furthermore, the prongs 5 in forcing their way through the metal will be tightly gripped about midwayfthe length of the prongs, While the outerY ends' of the prongs will'also be jammed and' deformedA against the curved inner walls of theirv channel Il. Y Thismakes for an exceedingly sturdyf fastener and afterthe clamp plate is once Vdriven into place, therevis very little likelihood that the socket will ever become loose with re- Y metal of the socket kmember I being jammed inwardly due to possibly relatively bluntprongs 5.

From the foregoing, it will be seen that we have provided an extremely efficient and simple snap l fastener socket that is to be formed of onepiece ofV meta-l,V but with which, of course, there will;

beused- '9, clamping plate to hold the socket to 4o either direction to thus nd the ladjacent ones.V

the rst mentioned channel and th inner end of the second channel wall tucked behind the wall denning the socket; together With a clamp plate provided with prongs, said prongs adapted to register and pass through said minute openings in the rst mentioned channel and be deformed and clinched in the second mentioned channel to thereby hold the socket member to its carrying medium;

3. In a socket meinberllorY av snap fastener, a one piece body member having an upstanding central wall, the lower edge of` which extends inwardly, thesaid Wall beingslotted to form a plurality of spring ngers adapted to engage the head of a stud, a depressed y,channel arranged concentrically to the said wall andina plane slightly below the upper `edgeof' the upstanding central wall, said channel providedfkrwith a plu-V rality of spaced indentations, amr'imextending slightly ,beyond the depressedl channel,-a second concentric channel formed beneatlr the Vfirst-men.- tioned channel and theoutsideedge of the metal forming the second channelrbeing positioned behind thesaid central wall; together withA a clamping-plate having prongs adaptedl tjoj register with the indentations in they walls of .the first mentionedchannel during Yattachingvfoperation l and Y It-will'also be seen that we have produced a snap fastener wherein the prongs will readily nd their true position to be driven through'the socket` Y member andthere grippedrand deformed to hold the socket member tightly to its cloth.

'Y Many slight changes may be made without in N Having thus described Aour invention What we pto secure by Letters 1`. Ina socket member a one piece body member having slotted walls forming spring fingers and second deeper channel formedin the body member and extending under 'the first mentioned Q channel; together with a clamping plate provided with'prongs, Athe rstmentioned channel having. a plurality :of indentations in its bottom bef deformed Within Ythe second mentioned Achannel to thereby hold the ,socketV mem-ber 120' its l, 4.; a socket member for a` snapfastener, a body member having a central slotted' cylindrical wall,v the lower edge `of which extends inwardly` V to Vforma pluralityoffspring lingers, theupper portionuofythe Wall kbent backen itself andY then 'slightly upwardly to forma depressed-gconcelltric channel, thejsaid channel providedwwith spaced Y prick enriches, the Outer wall 0f. the channel profrom'the rimunder thedepressed` channel-,and.

vided atwits upper edge with an -outwardly'exf tending rim and arsemicircular; wall 'l extending theedgel of, the wall positioned Abehind Athe .cyglindrical slotted wall; aclampingplatei having Prensa-the leiter adapted to fpassgthroush; the said registering prick punchesv in the plate during anr attaching operation and be deformed byy the said s ernicircularV walls to4 tightly. hold.l theA bodyV member of the clamping plate to, itsjV fabric.

' FREDERICK H-.f-'ETERSQN I ROLLINj R'; CLARKE;

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