US2217571A

US2217571A - Endpiece for stringers of separable fasteners

Info

Publication number: US2217571A
Application number: US169297A
Authority: US
Inventors: Susskind Albert
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-10-24
Filing date: 1937-10-15
Publication date: 1940-10-08
Anticipated expiration: 1957-10-08
Also published as: FR812476A; GB479543A

Description

Obt. 8, 1 Av SUSSKIND 2,217,571

ENDPIECE FOR STRINGEBS 0F SEFARABLE FASTENERS F iled Oct. 15, 1937 2 Sheets-Sheet 1 .l'nvenfor':

Oct. 8, 1940. v A. SUSSKIND 2,217,571

ENDPIECE FOR STRINGERS 0F SEPARABLE FASTENERS Filed Oct. 15, 1957 2 Sheets-Sheet 2 Flyzz 1 h- {sa y 58 1 W65 My. 77

the Strin er. y he teeth Projections Whi h and 4 of which are in mutual engagement, when 45 50 tion e illustrated y y of example in the acof bridges or noses engage the fastening elements 50 Patented Oct. 8, 1940 i UNITED STATES PATENT OFFICE D ENDPI ECE FOR STRINGERS OF SEPARABLE FASTENERS Albert Siisskind, Berlin, Germany Application October 15, 1937, Serial No. 169,297 In Germany October 24, 1935 8 Claims. (Cl. 24-205) The present invention relates to endpieces for Fig. 2 is a developed plan view of the end piece stringers of separable fasteners and particularly or top stop shown on the left side of Fig. 1, for stringers of that kind which is cut-01f in any Fig. 3 is a developed plan view of a modification desired length from endless bands carrying of the top stop shown in Fig. 2, is mutually engaging rows of fastener elements. Fig. 3a is a perspective view of the form shown The end or limiting pieces hitherto used in in Fig.3, 4 connection with fastener stringers of the last Fig. 4 is a developed plan view of the end piece named kind'are usually attached to the stringor bottom stop shown in Fig. 1, ers by means of teeth, which when the end pieces Fig. 5 is a developed plan view of an end piece of substantially U-shaped cross-section are or top stop of the type shown at the right of clamped together will pentrate the material of Fig. 1, 1 the stringers. These end pieces have the draw- Fig. 6 is a vertical sectional view of the top back that they are not rigidly connected with stop shown in Fig. 5 on a slightly larger scale, the fastener elements on the stringers, so that Figs. 7 and 8 show a developed plan and side 5 they by careless fastening may loosen from the elevation of still another embodiment of an end latter. The known end pieces also have the piece for the opened end of a fastener strip-or a drawback that a special toolmust use used for top stop, bending the same into their position of use. Fig. 9 is a perspective view of a modified form The main object of the present invention is to of bottom stop or an end piece for application do away with the said disadvantages and procure to a closed end of a fastener, 5 an end piece which can be positively intercon- Fig. 10 is a developed plan of a further modified nected with the fastener elements proper and be form of bottom stop, fixed to the stringers without the aid of a tool. Fig. 11 is a perspective view of a form of end The present invention therefore renders it pospiece adapted for use solely on fastener strips of sible to deliver interconnected fastener strips of the type which do not require the use of fastener 25 great length to the consumers, and leave it to end sections, them to divide the strips as it may be required, Fig. 12 is an elevatlonal view of a still further and to finish the fastener pushing the fastener modified form of end piece or top stop, slide over the rows of fastener elements and by Fig. 13 is an elevational view of a further modiapplying the limiting or end pieces without the fled form of end piece,

use of any tool- Fig. 14 is a developed plan of a still further The limiting or end pieces according to the inmodified form of end piece, vention, which are pushed upon the severed ends Fig. 15 is an elevational view of the form of of the interconnected fastener strips carrying the end piece shown in Fig. 14,

5 fastening elements are in contrast to the known Fig. 16 is an elevational view of the form shown limiting or end pieces equipped with teeth or lugs, in Fig. 15 applied to the fastener element, and which, when the sleeve-shaped limiting or end Fig. 17 is an elevatlonal view of a still further pieces is applied, resiliently and self-locking will modification showing the top pieces cooperating snap into the spaces between the fastening elewith the slider of the fastener when the holding ments on the stringers. The open side of asleeveparts of the top pieces-are angularly arranged 4 shaped end piece is simply pushed over the sevto secure the stringer ends. ered end of the stringer in question and the end In Fig. 1, which shows a partially open fastener piece is thus not connected with the stringer itself strip ith t nd and 2 denote th fastener t is nly coupled to he fastening elements on stringers, the conventional fastening elements 3 en age the spac s intermediate t as e g elea length is severed from a, moving fastener band. ments on the stringer. The free outer ends of the stringers l and 2 carry some embodiments of separable fastener strips end pieces 5 and 6, respectively, which limit the and limi in r d Pieces r ng to e invenstrokes of the fastener slide, and which by means companying drawings. (Figs. 1 and 2). To the ends of the members 5 Fig. 1 is a front elevational view of a partly and 6 remote from the fastener stringers I and 2, opened fastener strip, with the fastener slide

outer stringers

1 and 8, respectively, without showing two forms of outer end pieces or top fastening elements, are connected. The connecstops and an inner end piece or bottom stop, tion is formed by projections, teeth or the like on 55 the

pieces

5 and 8, which penetrate the material of the outer stringers I and 8.

At the closed inner end of the fastener strip a limiting or end piece 9 common for both stringers is arranged, which, after it has been pushed over the conventional fastening elements 3 and 4, with its projections or fingers engage the spaces intermediate the fastening members, and hereby is self-lockingly connected with the inner stringer ends Ill, II), which carry no fastening elements.

Fig. 2 shows the form of the end piece 5, also shown in Fig. 1, for fastening elements of the so-called T-type. This end piece has two openings H, Il',.the walls II" and Il' engage the necks of the T-shaped fastening elements. The end piece 5 is bent into U-shape about the dashed lines |2,l2'. The one end of the end piece 5 is formed with projections 13, I8, which are rightangularly bent and serve for connecting the end piece with the outer stringers 1 shown in Fig. 1. When the end piece is bent into U-shape, it is closed by the teeth H engaging correspondingly formed cavities I! in the opposite edge of the end piece. a

Fig. 3 shows another form of an end piece for the open end of a fastener strip. The end piece is bent into U-shape about the lines l6, l8. Projections l1 and I1, which after the folding are right-angularly bent, serves as guides along the fastening elements. Other guides are formed by the members l8 and i8, which before use also are right-angularly bent. After the end piece has been pushed over the rows of fastening elements, the projecting parts l9 and Is at the upper end of the piece will engage the space intermediate two fastening elements, whereby the piece is securely held in position.

For the attachment of the stringer sections l0, Ill, which do not carry any fastening elements, the end piece may at its lower end be formed with points or teeth 2| adapted, after having been right-angularly, to penetrate the material of the stringers. After the bending, the end piece may for instance be held together by means of lateral teeth 22, adapted to engage recesses 23 in the opposite side of the end piece. Instead of this arrangement a rivet may be used, which after the bending is inserted through the holes 24 and 24'.

Fig. 4 shows an end piece for the closed end of the fastener strip similar to the end piece 9 shown in Fig. 1. This end piece consists of two plates 28 and 26', which are interconnected by means of a bridge 25, and are bent into U-shape about this bridge. Deformation of the folded end piece may be avoided by means of projections 21, adapted to engage recesses 28. Adjacent the bridge teeth 29 and 29' are formed, which serve for the attachment of the end piece to the stringer ends which do not carry fastening elements. For the same purpose also

lateral teeth

30 and 30 may be used, which before use are bent right-angularly to the plates 26, 28'. After the folding of the end piece the projecting tongues 8|, 3| and 25', respectively, are bent rectangularly to the said plates, and when the end piece is pushed over the rows of fastening elements, these, tongues will engage the spaces between the fastening elements, on the outer sides of the rows, whereby the end piece is securely held in position.

The end piece shown in the Figs. 5 and 6 is before use folded into U-shape about the lines 33 and 33'. The end piece is formed with tongues ll, -34, stamped out in the sides of the piece.

32, 32' on the plates 26 and and at the ends of these tongues hooks 35 and 35' are formed, which, when the end piece is pushed over the rows of fastening elements, will snap into the spaces intermediate the fastening elements.

The Figs. 7 and 8 show an end piece adapted for use at the open end of a fastener strip. As shown in Fig. 'I this end piece has lateral arms 36 and 38' with inwardly projecting, hook-shaped ends 31 and 81, and an intermediate arm 38 which, as indicated in Fig. 8, has an inwardly and downwardly inclined tongue 38'. When the end piece is applied to a fastener strip, the tongue 38' will snap into the hole of a fastening element 38 and the hooks 31 will engage the spaces intermediate the fastener elements.

An end piece, resembling that shown in the Figs. 5 and 6, but designed for use at the closed end of a fastener strip, is shown in Fig. 9. This end piece is formed with tongues 40 and 40', the ends of which are hook-shaped and adapted to engage the two rows of fastening elements.

Fig. 10 shows an end piece for the closed end of a fastener strip, resembling that shown in Figs. '1 and 8 for the open end of a fastener strip. This end piece consists of two

plates

42, 42, which 'are interconnected by means of a bridge 4| and before use are bent about the edges of this bridge.

The plates 42, 42' have

arms

43, 43 and 44, 44', respectively, the ends of which are hook-shaped and adapted, when the folded end piece is applied to the closed end of a fastener strip, to engage the spaces between the fastening elements and lock the end piece to the latter.

Fig. 11 is a perspective view, showing an end piece for the closed end of a fastener strip which has no stringer end sections without fastening strips (shown at Ill, ill in Fig. 1). The plateshaped parts 45, 45' of this end piece, which are interconnected through the bridge 48 about which they are bent, and at their front ends have lips- 48, 46' and 41, 41' adapted to engage the spaces intermediate the fastening elements, terminate at the bridge 48 and have thus no projections or the like for attachment to stringer end sections not carrying fastening elements.

Fig. 12 shows schematically an end piece for ithe closed end of a fastener strip. To this end piece the inclinedly cut-off stringer end sections 50 and 50' without fastening elements are attached. Along the lines 5| and 5| these end sections are coated with an adhesive layer, in order to facilitate the connection with the main stringer sections carrying the fastening elements. The last named stringer sections hereby overlap the adhesive-coated ends of the sections ill and 50.

- From Fig. 12 it can be seen, how far the fastener slide 52 will slide over the end piece before it is arrested.

The end piece 53 shown in Fig. 13 is designed for use at the closed end of a fastener strip which has no stringer sections without fastening elements. This end piece has two inwardly yielding

tongues

54 and 55, which, when the end piece is applied, will engage spaces intermediate the fastening elements and automatically lock the end piece 53 in the proper position. The bridge member of this end piece is formed with lateral projections 56 and 56', which at their edges are formed with rows of teeth 51 and 51' or the like and surround the severed ends of the stringers without fastening strip whereby fringing of the stringer ends is prevented.

The endpiece for the end of the fastener strip shown in Figs. 14, 15 and 16, which also has U- shaped edges 58 and 58', is formed with a rigid nose 59. The stringer end section 6|! without fastening strips is fixed to the endpiece'by means .The parts 63, 63', of the endpieces located onthe fastening elements form an angle with the parts 64, 64' of the same to which the stringer sections 54 and 64' are attached which carry no fastening elements. Due tothis arrangement, the parts 63, 63' will without difiiculty slide into the fastener slide, which is indicated in dot-and-dash- Y lines at 65, and when the strip is closed, the

parts

64, 64 carrying the stringer ends to which no fastening elements are fixed, will not, as otherwise, point outward away from each other, but will lie adjacent each other in parallel relation. This gives a fastener of good appearance, which closes perfectly.

Instead of this arrangement the stringer sections 84 and 64' may be pivoted to the endpieces 63 and 63', so that they easily may be brought into the proper position when the structure is closed. The fastener elements carrying stringers may be marked with arrows or the like according to Fig. 1, for the purpose to show the direction in which the slide must be moved over the stringers, and on which end the corresponding endpieces must be applied.

I Iclaim:

1. An endpiece for stringers of slide actuated fasteners, which stringers have each a continuous straight row of spaced fastening elements,

said endpiece consisting of walls connected by an apex soas to give to said endpiece a U-shaped profile, and being adapted to be pushed along said row to a position overlapping the outermost fastening elements of said row, said endpiece being provided, with at least one anchoring member inclining. inwardly toward said fastening elements, said member presenting a pawl-like tooth having a gently inclined cam face, adapted to slip over said fastening elements, and a sharply inclined locking face, adapted to engage firmly said fastening elements for locking the endpiece against longitudinal movement in one direction along said fastening elements. I

2. An endpiece as in claim 1, in which said tooth is formed by the end of an elastic tongue connected with said end piece.-

3. An endpiece as in claim 1, which consists of elastic material, and in which said tooth is formed by the end of a tongue, integral with said endpiece.

4. An endpiece as in claim 1, in which at least one wall of the U is provided with two tongues, each having an anchoring tooth, the sharply inclined end faces of said tongues-being ofiset longitudinally relative to each other.

5. An endpiece as in claim 1, which consists of elastic material, and in which each wall of the U is integral with a tongue provided with said tooth, the teeth of said tongues facing each other.

6. An endpiece as in claim 1, in which said tooth is provided at the apex of the U.

7. An endpiece as in claim 1, in which the apex of the U and at least one of the walls of the U are each provided with an anchoring tooth.

8. An endpiece as in claim 1, in which each wall of the U is provided with two anchoring tongues facing each other, the sharply inclined end faces of said tongues being offset longitudinally relative to each other.

ALBERT'S'USSKDID.