US2537939A

US2537939A - Slide fastener construction

Info

Publication number: US2537939A
Application number: US648143A
Authority: US
Inventors: Howard J Murphy
Original assignee: United Carr Fastener Corp
Current assignee: United Carr Fastener Corp
Priority date: 1946-02-16
Filing date: 1946-02-16
Publication date: 1951-01-09
Anticipated expiration: 1968-01-09
Also published as: GB622318A

Description

H. J. MURPHY Filed Feb. 16, 1946 SLIDE FASTENER CONSTRUCTION Jan. 9, 1951 Y Ho wana Ma/rp/Ivy Patented Jan. 9, 1951 l assises suns Fas'rsm Corrs'raUo'rloN Howardhl. Murphy, Lynneld, Mass., assignor to tener United-Can' F tion, Cambridge,

p Corpora Mass., a corporation pf Massachusetts Application February il, 1946, Serial No. 848,143

Claims. (CL 2li-205.11)

The present invention relates to slide fastener constructions and aims generally to improve constructions of slide fasteners andthe like.

- One of the objects of the invention is the provision of an improved terminal end for coil type slide fasteners in which the end provides an anchor for the coil end.

A further object of the invention is the prol vision of an improved separable end `stop for portion of a slide fastener showing the end stops connected;

Fig. 3 is a. horizontal sectional view through the joined end stops as taken on the line l3 of F18. 2: I

Fig. 4 is a vertical sectional view of the female end stop attached to a slide fastener stringer shown in elevation;

Fig. 5 is a transverse sectional view of the female end stop as taken on the line l-l of Fis. 4:

Fig. 6 is an enlarged perspective view ofthe disassembled parts of the female end stop according to the illustrated embodiment of the invention;

Fig. 'I is a front elevation of the male 'terminal end; and

Pig. 8 is a vertical central sectional view of the male terminal stop. i

Referring to the drawings, the improved slide fastener construction comprises a pair of opposed stringers or tapes l, I0 to the meeting edges of which are secured the fastener elements. herein shown as consisting of helical coils II-II of non-circular ribbons adapted to interlock in meshing engagement when the fastener is closed by means of 'a slider, not shown.

The stringere or tapes l and I0A are preferably woven or otherwise constructed to a flanged cross section, preferably T-shaped, to provide lateral anges ll--III onone or both sides of the web lll-IIIb of the stringers I and Il. respectively. Thev coils are suitably secured to the 2 as for examplel by weaving the tapes to the successive convolutions of the coils as disclosed in my copending application `Serial No. 579,746, died February 26, 1945 now matured into Patent Number 2,504,078 dated April 1l, 1950.

According to the invention, means areV provided to secure the terminal ends of the coils to the stringer so as to hold the coil securely in place relative to the Stringer edge to relieve strain on the threads attaching the-successive coil convolutions to the stringer tapes Such means may be embodied in a separable end stop for the fastener, permitting the fastener to be separated as desired after the slider has been moved to' the bottom of the fastener, as is the case where the fastener is used as a closure for garments, such as coats, Jackets,.sweaters and the like. In the embodiment selected for illustration in the drawings, the invention may be embodied in male and female members I l and It. respectively, for this purpose. i -1 The male member or terminal end Il for the stringers` preferably comprises an elongated sleeve having a relatively at body portion l1,

lan integral end portion Il and inturned side nanges il spaced from and parellel to therbody il (see Figs. 7 and 8). The body I1 is preferably of a width 'to overlie the two iianges l* or Il* of a stringer and the end portion II preferably abuts the end of the Stringer. `The member il is securely attached to the Stringer by crimping the inturned flanges vI9 against the opposite face of the stringer flanges te-ll, thus encompassing the end of the stringer flanges on all sides.

Preferably the end IIL-l2* of the coils H--ll are extended into the end stops and gripped between the body I1 and flanges I9. or as illustrated in Figs. 'I and 8, the end I2* of the coil may be formed as an eye or loop to receive a lug il on the upper edge of the front wall I1 of the male member I5 and thus anchor the end of the coil to the member I5. Thus the members Il provide an anchoring socket for the terminal ends of the coils serving to relieve strain on the threads attaching the successive coil convolutions to the stringer flanges.

In the illustrated embodiment of the invention the male member may be, and preferably is constructed as above described, and as illustrated in Figs. '1 and 8.

-The female member It which may form a bottom stop may be and preferably is similarly formed with a body 20 and inturned flanges 2| to embrace opposite sides and edges of the faceoftheiiangeslandlibymltablemeam. ss ltringertowhichltisattachedaswellasthe terminal end of the coil, auch es the coil end il* as shown in Figs. 5 and E. The female member iB is further formed with a socket or cup 24 formed integrally with or attached to the stop IS to receive the male member iii, and is of such dimensions that it forms a stop for the slider as will be understood.

As herein disclosed the female member l@ may be formed at its terminal end with oppositely disposed laterally extending ilanges 2 and 23 projecting respectively from the body and the ilange 2| as illustrated in Figs. 4 and 6, adapted to be embraced by the cup or socket member 24 whereby the latter may be securely attached to the member it.

The cup or socket 21! may be suitably formed to receive and be attached to the member i5 while providing a laterally projecting recess for the reception of the male member l5. One desirable construction of cup or receptacle 2d is illustrated in the drawings, and comprises a member having an intermediate base portion 25 and angularly disposed opposed channeled sides, the latter having a web portion 2l and inturned edge flanges 28. Such a cup or receptacle may be simply and economically formed :from a channel shaped strip, the flanges or which are cut from an intermediate portion throughout a length slightly greater than the width oi the body it and ange 211. The cup 2Q may be folded as shown in Fig. 5 and then slipped over the terminal end of the stop i6 so that the base 2li oi the cup 2d underlies one oi the flanges 22-93 and the inturned flanges 2B overlie at least one oi the ilanges 22 and 23. As illustrated, the base 2@ oi the cup 2d underlies the flange 22 or" the stop l5 and the ilanges 28 of the cup overlie the iiange 23 of the stop IS. Thus the socket or cup 24 is securely attached and locked to the stop body l5 and is prevented from longitudinal displacement thereon.

The width of the flanges 22-23 oi the female end stop I6 is such as to maintain the adjacent edges of the ilanges 28 of the sides 2l. in spacedapart relation to provide guides 29 for the passage of the Stringer Webs 9b and llb as is illustrated in Fig. 3, thus avoiding the necessity of extending the end stop l5 and i5 below the end of its Stringer ill.

The members I5 and it will ordinarily he securely attached to the stringers against displacement therefrom by clamping action of the compressed or clinched body and opposed edge flanges I'l--IS and 2li-2l. Ii desired, additional locking means may be provided in the form oi a tongue 3U cut from the metal oi the end stop, for example, the body il or 2c, and pressed inwardly into biting engagement with the associated Stringer.

Advantages of the invention reside in the simplicity of construction as well as of application of the component parts of the separable end stop to the Stringer. The provision of a terminal'end member having a body and spaced opposed flanges permits the members to be readily applied to a coil-attached Stringer with the Ybody overlying one face of the Stringer and terminal end of the coil and the edge ilanges I9 and 2| bearing against an opposite face of the Stringer, so that compression of the body and anges together securely binds the Stringer end and coil end together. Furthermore, the provision of a socket or cup 24 of the type illustrated and described on the female end stop permits the ready interlocking of the adjacent Stringer ends.

Although I have illustrated and described a. single preferred embodiment or the invention, I do not intend to be limited thereto as the scope of the invention is best defined in the appended claims.

I claim:

l. A slide fastener construction comprising: a pair of Stringer tapes, each having a web portion and opposed laterally extending flanges along a longitudinal edge of the web portion; a fastener coil secured to each tape along said longitudinal edge with the convolutions of the coil secured to the flanges of the tape, said coil having a terminal end extending angularly to the end convolution of the coil and positioned adjacent the anges of said tape; arr end stop member at the end of each tape comprising a substantially fiat plate portion and wing portions extending from opposing side edges of said dat plate portion in substantially parallel relationship to said plate portion, said plate portion and said wing portions being in gripping engagement with opposing faces oi the flanges of the tape with the terminal end oi the coil in secured gripped engagement between said plate portion and said wings; one of said end stop members having opposed end flanges extending normal to the plate portion and the wing portions thereof and a socket membei' compri-zing an elongated sheet metal body bent to provide a U-shaped longitudinal crosssection with a base and opposing leg portions, each of said leg portions having opposed wing flanges extending normal thereto from opposite side edges toward the ilanges of the other leg portion, said socket member being assembled to said one of said end stop members with a side edge of a wing ilange of each leg portion spaced from the base of said body for receiving an end ilange of said one end stop member and securing it to the base of said socket member and with the other wing flanges of said leg portions in engagement with the end edge of the other end ilange of said one end stop member thereby positioning said one end stop member within said socket member to provide a socket between said other wing :danges and said one end stop member whereby the other end stop member may be received therebetween with the web portion of the tape attached to said other end stop member extending between said other Wing ilanges.

2. In a slide fastener assembly, an end stop construction comprising a stringer tape having a web portion and a flange of flexible sheet material extending angularly from a longitudinal edge of the web` portion, an end stop member secured to one end of said tape having a plate portion in engagement with one face of the ilange and a wing portion extending from one side edge of said plate portion in engagement with an opposite face of said flange, opposed ilanges extending from the end of said end stop member at the end of said tape, and a socket member of sheet materialsecured to said end stop member comprising opposing leg portions connected by a base portion, a wing extending from the edge of one leg portion toward the other leg portion and having a side edge spaced from said base portion and said side edge of said wing being in engagement with an end flange of said end stop member, and a second wing extending from an edge of a leg portion on a side opposite that of said ilrst mentioned wing and engaging an end of the other end ilange of said end stop member and being spaced thereby from said end stop member to provide a socket for re ceiving a cooperating end stop member on the end of a cooperating Stringer tape.

3. In a slide fastener construction, an end stop construction comprising a Stringer tape having a web portion and opposed flanges of ilexible sheet material extending angularly from a longitudinal edge of the web portion, an end stop member secured to one end of said tape having a plate portion in engagement with the faces of said flanges opposite the web portion and wing portions extending from opposite side edges of said plate portion in engagement respectively with the faces of said flange adjacent the web portion, opposed flanges extending 'from the end of said end stop member at the end of said tape, and a socket member of sheet material secured to said end stop member comprising opposing leg portions connected by a base portion, wings extending from the side edges of said leg portions toward each other, the Wings on one side of said socket member having side edges spaced from said base portion securing to said base portion one end fiange of said end stop member, and the Wings on the other side being disposed in engageclaim 3 having a slide fastener coil secured to the flanged longitudinal edge of the Stringer tape with each convolution of the coil being secured to the anges.

5. An end stop construction in accordance with claim 3 having a slide fastener coil secured to the anged longitudinal edge of the Stringer tape with each convolution of the coil secured to the flanges and provided with a terminal end angularly disposed to the end convolution of the coil and in secured engagement between the plate portion of theend stop member and the wing portions of the end stop member.

HOWARD J. MURPHY.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,893,823 Legat Jan. 10, 1933 2,018,099 Sundback Oct. 22, 1935 2,049,646V Cuttler July 21, 1936 2,078,889 Bennett et a1. Apr. 27, 1937 2,146,691 Sundback Feb. 7, 1939 2,216,794 Ulrich Oct. 8, 1940 2,267,079 Clark Dec. 23, 1941 2,299,230 Hanson Oct. 20, 1942 2,300,442 Wahl Nov. 3, 1942