DE1610454B1 - Method for producing a zipper by weaving - Google Patents

Description

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The invention relates to a method for producing strong reversals required for the weft reversals a zipper by weaving, steering the plastic profile strand no high wherein a plastic forming the coupling elements allows number of shots. In addition, only one can profile strand with threads forming the carrier tape for the production of a few meters of zipper length is tied during the weaving process, as well as 5 sufficient weft supply for the clutch run a zipper made accordingly. link-forming strand or the plastic shot

It is known in numerous embodiments, threads are provided, which is why each after short endless rows of coupling links in the form of rungs - time intervals require a weft bobbin change, Spirals or U-shaped folded meanders are borrowed with the disadvantages of frequent standstill of the prefabricated and this in a second work loom, considerable effort in operating aisle by weaving in, sewing on, welding or personal and numerous interfaces or under-gluing to be attached to the strap (German breakouts in the course of the weaving process. Also with legeschriften 1 070115.1 070 564.1171 659.1154 414, the other proposed manufacturing processes (German 1128 634; U.S. Patent 2,567,160; French see exposition 1 260 841, 1 262 658, 1 262 659 Patent specification 1 360 437 and French add-ons 15 and 1 271 446) were able to use the above-mentioned, fundamental patents 73 252; Austrian patent specification 222 345; borrowed disadvantages associated with the registration of the Swiss Art 384,264). Here it is fabric profile strand connected as weft thread, known, so-called Y-, fork- or not fixed as a support belt. Also the well-known measure Use rag bands (German Auslegeschriften (German Auslegeschriften 1113 671 and 1124 893) 1087 096, 1092 853; German utility model 20 and the older proposal (German Auslegeschrift 1,742,810, 1,751,593, 1,751,596, 1,827,811; British 1,266,041), on the plastic profile strand before weaving Patents 730184 and 970,771; USA patent - cross-sectional specification 2174 892, which already reduces the flexural strength, which provides for deformations for fastening on both sides, does not correct the basic and cover the row of links. Such additional disadvantages of the weft insertion However, because of the separate 25 plastic profile strands, zip fasteners require.

Manufacturing stages a considerable manufacturing effort. In the manufacture of zippers from pre-die known devices for the production of prefabricated continuous rows of links, which with the manufactured helical or meander-shaped dome supporting tape are connected by weaving Link rows are complicated and expensive, and it is known to use the link rows in the manner of a chain device to attach the row of links to the 30 thread on the edge of the strap (German In general, fastener tape is subject to stringent requirements, published in German Offenlegungsschrift 1152 073 and 1164 724). Aside from that placed so that the coupling elements cannot be moved, and _ already mentioned- disadvantage, a row of links constant pitch are fixed in the tape. To have to manufacture, there are difficulties here

It is also known to have zippers in one that the finished, inherently elastic row of links

Produce operation by weaving, which must be performed exactly after 35 and that the weft threads

one type of procedure a of the fastener tape fabric forming the coupling elements exactly according to the stone

Plastic profile strand as weft thread, taking into account the row of links, in the gaps provided

earlier or subsequent training above must be brought in, which is only possible with minor

Thread loops of the plastic profile strand in the load-weft number, i.e. low weaving speed, possible

tape fabric is tied off and the thread loops are 40 hch.

are formed into coupling elements (German patent-Furthermore, a description and drawing of a scripture 1063 456; German Auslegeschrift 1126 809; Zipper known, in which one on the French Patent 1,280,111). It is also a band edge guided as a chain thread link-forming Process for the production of a zipper with a plastic profile strand over the tape edge Weaving is known in which the limb 45 is provided with standing loops or crankings forming plastic profile strand is in the edge bead, which show the shape of coupling elements a support tape is woven in, the Auslegeschrift 1 022 981. It is, however Formation of the edge bead on the flap of a Y-band is not described there, as is the case with such warp thread loops able to remember (German Auslegeschrift 1110102; or crankings during the weaving process, German patent specification 1122 464; USA patent specification 5 °, especially when weaving with a high number of picks, 3,266,114; French patents 1,248,598 and can be formed. Besides, that will 1 327 166). There the plastic profile strand is woven into the carrying tape through the full width the two sides of the bead also turn out to be extremely stiff as a plastic profile strand. Weft thread guided and tied, with the object of the invention Weft thread at the edge of the tape at 55, a much more economical method of manufacture a loop from one bead side to position a zipper by weaving other bead side am is returned. After creating, in particular with a high shot other known production method (French numbers woven and an almost unlimited supply Patent specification 1 234169) the carrier tapes are used for the link-forming plastic profile strand before of plastic wefts forming 60 can be seen.

a warp thread-free area and then this is achieved according to the invention in that

alternately around the longitudinal center axis of the chain-thread-free chain-forming plastic profile strand

richly folded, whereby at the fold there is a fiotting in two weaving planes as a chain thread

the plastic weft coupling surfaces is carried out and tied and that then the

forms are. In this weaving process, there are no 65 thighs between the two weaving levels.

the prefabrication of a continuous row of links, sections of the plastic profile strand in the area

However, the plastic profile strand can only be folded with the later coupling engagement,

low number of shots, because the production of intermediate set tape, conductor

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ribbon od, the like. It is known to be threadingly entered into the other web level for decades, a cord must float alternately in two. This type of weft thread insertion is to be guided and tied in the weaving plane as a warp thread. The present 5 is known (German Auslegeschrift 1164 724).
Invention utilizes this principle known per se. According to the invention, it is also provided that weaving technology, however, only partially uses the meander-woven zipper to produce a zipper that is known per se, by folding a limb leg and fixing the plastic profile strand forming the row shape in two weaving planes. This measure is in itself with the alternating tying. For the prefabrication of a meander-shaped Glie chain thread, which is separated here as io, the series can be known (Swiss patent specification 384 264). A supply length of almost any size is provided There is a plastic run as a weft thread, which also applies to the other warp threads profile strand over an upper and one of the fastener tape and to a large extent also for the lower, spaced warp thread to a fastener tape weft thread, since the zipper 15 initially formed a flat meander which, according to the invention, is woven on a needle loom and can be folded and folded in a U-shape with the addition of heat. The plastic, which is guided as a chain thread, is fixed to the final link row shape,
profile strand makes compared to a weft thread The invention is also directed to a zipper guided plastic profile strand less and shorter, whose rows of links consist of a meandering movement and is much less on bend 20-shaped wound and U-shaped folded synthetic stress than a fabric profile strand, for example with a needle , the articulated weft thread inserted into a tape fabric, so that, as prak- ily, and whose winding legs have shown by table tests, the zipper tape fabric threads are covered, which freely according to the invention with weft numbers of far above reversing points in the engagement area with a thousand per minute can be woven. These high 25 coupling surfaces are provided and produce in the rear weft numbers in connection with the area as slide guide, produced according to the invention possible large thread supplies one of the above-described method of the invention.
Production speed for the slide fastener, which is characterized by the fact that the slide fastener according to the invention is many times greater than in all known ones, that the winding legs of the Glie-weaving process for the production of a slide fastener. 30 derreihen the lobes of a per se known two-another embodiment of the invention can penetrate in layered fastener tape, such that the known manner of the plastic profile strand rearward reversal points of the link row in each case in the area of the coupling engagement before or after the outside weave on the tied fastener tape flap be provided with domed surfaces. Just hang up and the tied fastener tape the possibility that only after weaving the dome lobes can be attached from this point to the outside to the surface, is a transition into the actual fastener tape on top of each other is a special advantage, since this is all the problems are located and in the inward direction on the locking latches which, with the alignment of the plastic profile longitudinal axis towards the outside, rest on the limbs of the limbs. strand pre-deformations during the weaving process. This design results in a very flat, connected strand. 40 supple zipper is achieved, in the support of which, according to a preferred embodiment of the straps, the rows of links are precisely fixed. The two weaving planes can also be found outside the area of the woven-in plastic profile strand penetrating the carrier tape tabs when the link-forming plastic profile strand is unmarried. B. along a certain distance then no more tape are passed over, so that it is then integrated 45 times, the row of links sits firmly in the carrier tape, apart from the woven synthetic carrier tape, so that the reverse points of fabric profile strand, the shape of a so-called Y- , the row of links directly to the slide guide has verGabel- or flap tape. Through this can be turned without thereby the measure, the two weaving planes or the division of the coupling elements is impaired. The tape tabs formed therein already cover the links of the weaving process combined with one another and largely with rows, which according to the invention, according to a sewing tape or actual carrier tape, cover these free, covering carrier tape tab parts. In a known manner, the Er- 55 can also be attached to the corresponding forked or rag straps according to the usual weaving technique for Y legs, link legs by gluing, melting or the like.

According to the invention in a manner known per se, the shot An embodiment of the invention is in

threads from the common hinge part based on the following explained with reference to drawings. It

alternately transferred to the sub-band levels, so shows

that in the common part of the belt double the number of wefts F i g. 1 shows a cross section through the zipper

present as in a single liner flap. The 60 in the coupled state,

Transfer of the link-forming chain thread from FIG. 2 to the zipper according to FIG. 1 in

the one in the other web level takes place after each looks and

one or more weft thread passages, since F i g. 3, 4 and 5 a zipper half in

to achieve the necessary regular intermediate processing stages.

states of 65 lying between the two weaving planes. In the following description the following

Leg section of the plastic profile strand used in each case with reference symbols and terms:

a constant number of weft thread passages I 1

before a transition of the link-forming chain II J ^weave

ι, Ια Strap 2, 2α Rag (top) 3, 3α Rag (below) 4, 4α Rows of links 5 "1 parallel winding legs of the finished 6th j Rows of links 7th Plastic profile extrusion 8th Intervention area 9, 9α Domed surfaces 11 11α Reversal point 12th Locking slide 13, 13α Transition to the single-layer edge 14th Lock longitudinal axis 15th Meander limb (strand section between the turning points) 16 Deformations 17, 18th printing plate 19 20th free strap flap part

Bend in a U-shape to the edge of the Y-band and are fixed by the action of heat. The free The supporting structure flap parts 19, 20 can pass through by means of adhesive or when using suitable tape threads Melting with the parallel link legs 5, 6 (see. Fig. 1) of the U-shaped coupling elements or otherwise firmly connected.

ok

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F i g. 1 shows in cross section a zip fastener, aö which comprises two fastener halves with straps 1, Io, which are designed as so-called Y, forked or flap straps. The narrow flaps 2, 3 and 2a, 3a woven on the straps 1, la support the rows of links 4 and 4 a, with the flaps 2, 3, 2a, 3a covering the parallel legs 5, 6 of the row of links 4 and Aa , The two rows of links 4 and 4a are each formed from a continuous plastic profile strand 7 (see FIG. F i g. 3, 4), which according to FIGS. 1 and 2 is wound in a meander shape and bent in a U-shape, the coupling elements being provided in the engagement area 8 with coupling surfaces 9 and 9 a . The plastic profile strands 7 are guided as warp threads during the weaving process, they penetrate the narrow flaps 2, 3, 2a, 3a of the Y-bands and form reverse reversal points 11, 11a on the side facing away from the coupling surfaces 9, 9a, which are on the outer surface of the band flaps lie. The reversal points 11, 11a in their entirety form a guide for the one shown in FIG. 1 indicated closure slide 12. The fastener tape tabs 2, 3 and 2 a, 3 a Hegen from the penetration point to the outside to the transition 13, 13a in the actual fastener tape 1, la each other, while they, in the direction inward towards the longitudinal axis 14 of the closure , rest on the outside of the limbs 5, 6 of the rows of links 4, 4 a.

The F i g. 3 and 4 show two views of a zipper half in the intermediate production stage after the weaving process has ended. The plastic profile strand 7 is integrated into the two weaving planes I, II of the narrow flaps 2, 3 at regular intervals during the weaving of the Y-band as a chain thread, with the limb sections or meander limbs 15 lying floating between the two flaps 2, 3 already in front dem Einwete.i deformations 16 can be formed by embossing, which later form the coupling surfaces 9, 9 a . In principle, it is also possible to emboss the deformations 16 after the weaving process.

F i g. Fig. 5 shows a zipper half during the deformation process following the weaving process. The two tabs 2, 3 of the Y-band are together with the one in the manufacturing stage after the F i g. 3 and 4 only in one plane meandering plastic profile strand 7 between pressure plates 17, 18 pressed together under the action of heat, the between the flaps 2 and 3 lying sections 15 of the plastic profile strand 7

Claims (8)

Patent claims: 1. A method of manufacturing a slide fastener by weaving, wherein a the coupling elements forming plastic profile strand with threads forming the support tape during the weaving process is tied, characterized in that that the link-forming plastic profile strand (7) alternately floating in two weaving planes (I, H) as a chain thread and is tied and that then lying between the two weaving planes leg sections (15) of the plastic profile strand (7) in Area (8) of the later coupling engagement are folded. 2. The method according to claim 1, characterized in that in a known manner the plastic profile strand (7) in the region (8) of the coupling engagement before or after weaving with coupling surfaces Q, 9 a) is provided. 3. The method according to claims 1 and 2, characterized in that the two weaving levels (I, II) outside the area of the woven-in plastic profile strand (7) in itself in a known manner into one another and in a single band (1, la) are passed over. 4. The method according to claim 3, characterized in that in a manner known per se, the weft threads are transferred from the common belt part (1, la) starting alternately into the sub-belt planes (tabs 2, 2a, 3, 3a). 5. The method according to one or more of the preceding claims, characterized in, that the transition of the link-forming chain thread (plastic profile strand 7) from the one in the other weaving level (I or II) after one or more weft passes he follows. 6. The method according to one or more of the preceding claims, characterized in, that under a known supply of heat, the meander limb (15) folded and the Link row shape are fixed. 7. Zipper, the rows of links from a meandering wound and U-shaped made of folded plastic profile strand, which is tied into a tape fabric and its Winding legs are covered by tape fabric threads, with the exposed reversal points are provided with coupling surfaces in the engagement area and in the rear area as Serve slide guide, produced by the method according to one or more of the preceding Claims, characterized in that the winding legs (5, 6) of the rows of links (4, 4ö) the lobes (2, 3, 2 a, 3 a) of a known one two-lobed carrier tape (1, la) penetrate in such a way that the reverse reverse place (11, 11α) of the row of members (4, 4α) respectively rest on the outside of the tied fastener tape tabs (2, 2 a) and the tied for themselves Carrying tape flaps (2, 2 a) from this point outwards to the transition to the actual carrying tape (1, la) lie on top of one another and, in the direction inwards, onto the closure longitudinal axis (14) to rest on the outside of the limbs (5, 6). 8. Zipper according to claim 7, characterized in that the free fastener tape flap parts (19, 20) in a manner known per se on the corresponding limbs (5, 6) by gluing, Melting or the like. Are attached. 1 sheet of drawings COPY 009 530/24