HK1003361B - Knit slide fastener stringer - Google Patents

Description

Woven half-edge zipper

Technical Field

The present invention relates to a woven slide fastener stringer having a warp knitted fastener tape and a continuous fastener stringer knitted simultaneously with and along a longitudinal edge of the fastener tape when the fastener tape is woven. The invention relates in particular to such a knitted stringer: a continuous fastener stringer is stably sewn to a longitudinal side of a warp knitted fastener tape without causing a pitch irregularity and without being separated from the fastener stringer.

Background

Japanese patent publication No. sho 38-11673 and japanese patent laid-open publication No. hei 2-255104 disclose a common type of knitted half-side slide fastener in which a continuous fastener stringer is knitted in a fastener tape while the fastener tape is knitted. In these woven slide fasteners, while the fastener tape is woven, a continuous fastener element row is woven with a plurality of tying chain stitch yarns at the longitudinal side thereof to fix the row, thereby sewing the synthetic resin monofilament continuous fastener element row to one longitudinal side of the fastener tape having a warp-knitted base structure. However, in the former woven slide fastener stringer, since each stitch of the continuous fastener stringer is fixed to the longitudinal edge of the fastener tape only by one single sinker loop of each of the tying chain stitch yarns, only a limited fastening force can be obtained also because of the natural stretchability of the chain stitch. In the latter woven slide fastener stringer, since the sinker loop or needle loop of the tying chain stitch yarn extends to the foot line portion of the subsequent fastener stringer, the base structure of the loop seam tape portion becomes thin, so that separation occurs at the connecting portion of the coupled pair of fastener stringer, and when an upward bending stress acts on the surface of the fastener stringer, it is lifted.

Japanese patent laying-open No. 8-314 discloses a woven stringer developed to eliminate the above-mentioned problems. According to the woven slide fastener stringer, in a single wale of a base structure of a fastener tape formed by tying chain stitch yarns by a course, another chain stitch yarn is additionally woven to make the base structure compact so that the fastener course can be more stably fastened to the base structure.

However, even in the woven slide fastener stringer in Japanese patent laid-open No. 8-314, since the knitting yarn pressing the fastener stringer down to the side away from the base structure is still just the sinker loop of the tying chain stitch yarn, the knitting structure distributed above and below the fastener stringer is unbalanced and is not sufficiently tough on the fastener stringer, and therefore, when an upward bending stress is applied to the fastener surface, the coupled fastener stringer tends to separate. Furthermore, in order to stabilize the tying chain stitch yarn itself, an additional chain stitch yarn is knitted into the base structure, which means that a total of three knitting yarns including the warp flat stitch yarn are interwoven as described in the patent publication, and thus, the technique is complicated and it is difficult to knit.

Disclosure of Invention

Accordingly, it is an object of the present invention to provide a woven slide fastener stringer in which fastener stringers are easily woven, can be securely fixed to a warp-knitted fastener tape in a stable dimension by a unique warp-knitted structure, and has a sufficient degree of resistance to an upward pushing force acting on a fastener surface so that a local separation is not generated between coupled fastener stringers even if the fastener is bent.

According to the present invention, a woven slide fastener stringer which achieves the above object includes: (a) a zipper strip woven onto a warp knit base structure and having a loop stitched edge portion along one longitudinal edge; (b) a continuous fastener stringer knitted along the stitch-stitched portion of the fastener tape while knitting the fastener tape and fixed by two or more wales of a fastening chain stitch yarn; the woven half-side zipper is characterized in that: (c) a continuous needle loop of each of two or more wales formed by the tying chain stitch yarn presses the continuous fastener stringer against the warp-knitted base structure of the fastener tape from an upper side thereof, a continuous sinker loop constituting the base structure portion; (d) each of the plurality of warp inlaid yarns is laid over and at least partially interwoven with the continuous sinker loops.

Preferably, each of said warp-direction inlaid yarns is interlaced with said sinker loops in a zigzag pattern in and along each of said wales.

Preferably, a plurality of said warp-direction inlaid yarns are laid in and interwoven along said sinker loops of each of said wales in a single zigzag pattern, collectively in symmetrical patterns.

Preferably, a plurality of said warp-direction inlaid yarns are laid in and interlaced with said sinker loops of said two or more wales to individually form a zigzag pattern, generally symmetrical, which crisscross each other between said wales.

By adopting the arrangement, the warp knitting structure of the zipper tape coil sewing edge is close to a fabric structure, the hand feeling of organic fabric is good, and the size is very stable. Because the stitch bonded webbing portions are dimensionally stable, the courses can be stitched to the edge portion base structure at precise pitches in this region. Since the needle loop is pressed from the upper portion to the thread portion of the fastener course, it is possible to promote the balanced distribution of the knitting yarn at the upper and lower portions of the foot thread portion, with sufficient resistance to the upward bending stress acting on the surface of the slide fastener, thereby preventing the partial separation of the fastener course due to the lifting when the slide fastener is used in any state. As a result, the slide fastener can sufficiently perform its closing function.

Further, since the half slide fastener of the present invention can be manufactured by adding the inlay yarn in the warp direction to the base structure of the stitch-stitched side portion of the continuous fastener element row and interlacing the inlay yarn with the chain stitch yarn, the half slide fastener can be smoothly knitted without overloading the knitting needles. Meanwhile, the half zipper can be woven on a single row of the needle bed, so that the weaving mechanism is simple and does not need complex operation and design.

Drawings

The invention is illustrated by the following figures and examples, in which:

FIG. 1 is a rear perspective view schematically showing a part of a stitch-stitched side portion of a woven slide fastener stringer according to a first embodiment of the present invention;

FIG. 2 is a front perspective view of a portion of the seam side of the loop of the first embodiment;

FIG. 3 is a warp knitting diagram showing the structure of the knitted stringer of the half zipper of the first embodiment;

FIG. 4 is a warp knit drawing showing a single knit yarn of the woven slide fastener stringer of the first embodiment;

FIG. 5 is a rear perspective view schematically showing a part of a stitch-stitched side portion of the woven slide fastener stringer according to the second embodiment of the present invention;

FIG. 6 is a rear perspective view schematically showing a part of a stitch-stitched side portion of the woven slide fastener stringer of the third embodiment;

FIG. 7 is a rear perspective view schematically showing a part of a stitch-stitched side portion of the woven slide fastener stringer according to the fourth embodiment;

FIG. 8 is a rear perspective view schematically showing a part of a stitch-stitched side portion of the woven slide fastener stringer of the fifth embodiment;

FIG. 9 is a rear perspective view schematically showing a part of a stitch-stitched side portion of the woven slide fastener stringer of the sixth embodiment;

FIG. 10 is a rear perspective view schematically showing a part of a stitch-stitched side portion of the woven slide fastener stringer according to the seventh embodiment.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIGS. 1-4 illustrate a first embodiment of the present invention; FIG. 1 is a rear perspective view of a portion of a woven slide fastener stringer showing the manner in which successive courses are stitched to the stitch seam of the warp knit fastener tape; FIG. 2 is a front perspective view of a portion of the woven slide fastener stringer; FIG. 3 is a warp knit drawing showing the knit stringer construction of this knit stringer; figure 4 is a warp knit drawing showing the individual knitting yarns of this knit slide fastener stringer.

Although individual knitting yarns of the stitch-stitched portion of the fastener tape are shown in a relaxed state in fig. 1 to 2 and the yarn mesh portion of the fastener tape is omitted, the respective knitting yarns actually have a dense structure and are closely interwoven with each other. While the individual knitting yarns are shown in different sizes for ease of understanding, the size of the individual knitting yarns may be selected as desired to meet the requirements of knitting the half zippers. This is true for other embodiments shown in fig. 5-10, which will be described below.

As can be seen from FIGS. 1 to 4, the half slide fastener S for knitting of the first embodiment can be knitted on a normal warp knitting machine having one needle bed and one row; as are other embodiments and modifications described below.

In the first embodiment, as shown in fig. 3 and 4, the base structure of the fastener tape thread net section TB is constituted as follows: chain stitch yarn A knitted in a pattern of 0-1/1-0, warp plain weave yarn B knitted in a pattern of 1-0/1-2, three weft direction intarsia yarns C, D, E lining the weft direction of the fastener tape in a zigzag pattern in a pattern of 0-0/2-2, a pattern of 3-3/0-0 and a pattern of 4-4/0-0, respectively. According to this embodiment, as shown in fig. 3, the absence of chain stitch yarn a in the central region TB1 of web portion TB allows the central region TB1 to maintain a certain degree of flexibility for engaging with the garment, thereby facilitating accurate seaming of the slide fastener halves S. On the other hand, the chain stitch yarn a may be knitted in the central area TB1 of the yarn web portion TB as with the remaining area.

In this embodiment, four wales of the fastener tape T of its longitudinal side constitute a stitch seam EA at which and along which a reel type synthetic resin monofilament is woven, and a weft return in each course constitutes a continuous fastener course ER. Simultaneously with this knitting, the fastener stringer ER is knitted and fastened to the stitch seam edge EA along every other stringer by two wale fastening chain stitch yarns F knitted in a common pattern of 0-1/1-0. As shown in fig. 1 to 2, each of the fastening chain stitch yarns F has a longitudinal knitting needle loop extending to an arc portion of a single fastener stitch E of the fastener course ER, and therefore, the fastener course ER is pressed against the base structure of the side portion EA from the upper side thereof via the continuous needle loop in the wale direction, and thus, the element course ER is fastened to the stitch seam side portion EA. Meanwhile, the continuous sinker loop of each fastening chain stitch yarn F extends to the lower portion of the individual loop portion of the fastener row ER to form sets of sinker loops each extending in the wale direction so as to form the base structure portion of the stitch seam side portion EA.

In this embodiment, the warp inlaid yarn G1 is laid in the base structure of the stitch seam side EA in a weave pattern of 1-0/0-1 and interwoven with successive sinker loops of the tying chain stitch yarn F. In this first embodiment, not only are two warp intarsia yarns G1, G2 laid in their base structure along two wales W1, W2 of the respective tying chain stitch yarn F, but two additional warp intarsia yarns G3, G4 laid in a zigzag pattern in two wales W3, W4 of the chain stitch yarn a distributed inside and outside the wales W1, W2. According to this arrangement, the loop side portion EA is made of an organic woven fabric having flexibility and shape, and therefore, the fastener element row ER can be stably fixed to the loop side portion EA without changing the dimension in either the warp direction or the weft direction. On the other hand, these warp intarsia yarns G1, G2, G3, G4 may be inserted only in tying chain stitch yarn F, or may be inserted in respective chain stitch yarns F, a forming three wales W1, W2, W4, including the outermost wale of fastener tape T. Therefore, the present invention is by no means limited to these illustrated embodiments, and various modifications can be proposed.

FIG. 5 is a partial rear perspective view of the woven slide fastener stringer of the second embodiment. In this embodiment, the weave pattern of the individual knitting yarns is similar to that of the first embodiment except for the warp inlaid yarns G1-G8. That is, two pairs of warp inlaid yarns G1, G5; g2, G6 are laid in pairs of symmetrically repeating interdigitated pattern and interwoven with successive sinker loops of each of the tying chain stitch yarns F of the two wales W1, W2. In this embodiment, not only the warp yarns G1, G5; g2, G6 are inserted into two tying chain stitch yarns F of wales W1, W2, and warp intarsia yarns G3, G7; g4, G8 are padded into each chain stitch yarn a of wales W3, W4, respectively, wales W3, W4 are distributed on the opposite side of W1, W2, constituting the base structure portion. On the other hand, these warp intarsia yarns G3, G7; the G4, G8 do not have to be inserted into the sinker loop of the chain stitch yarn a. Warp intarsia yarns G1, G5; g2, G6; g4, G8 may be inserted into the chain stitch construction of the two tying chain stitch yarns F and the warp knit construction of the outermost chain stitch yarn a and weft inlaid yarns C, D, respectively.

FIG. 6 is an exploded rear perspective view of the third embodiment woven slide fastener stringer. In this embodiment, the weave pattern of the individual knitting yarns is similar to that of the first embodiment except for the warp inlaid yarns G1, G6. That is, two warp inlay yarns G1, G6 warp inserts are interlaced with every other sinker loop of two courses of sinker loops formed by the tying chain stitch yarn F of two wales W1, W2, and a row ER of rolled fastener coils is formed in a single zigzag pattern, and is integrally formed symmetrically, and fixed to W1, W2 so as to be repeatedly crossed with each other between the two wales W1, W2.

Figure 7 is a partial perspective view showing a fourth embodiment similar to the third embodiment except for the two warp inlaid yarns, G2, G8, which are warp-laid in layers interwoven with every other sinker loop of the chain stitch yarn a of the outermost wale W4 and every other sinker loop of the tying chain stitch yarn F of the second outermost wale W2, individually in a zigzag pattern, generally in a symmetrical pattern, which repeatedly crosses between wales W4, W2.

Figure 8 shows a fifth embodiment in which two warp inlaid yarns G1, G6 are used similarly to the third embodiment, but differ from the third embodiment in that: the two warp direction applique yarn G1, G6 pads interweave with successive sinker loops of a pair of tied chain stitch yarns F of the two wales W1, W2 in the warp direction to form a single zigzag pattern, generally symmetrical, that repeatedly interdigitate in the two wales W1, W2 warp directions.

Figure 9 shows a sixth embodiment, similar to the first embodiment, with one of the two warp inlaid yarns G1, G2 lining each sinker loop of the two tying chain stitch yarns F, the difference being from the first embodiment: each warp inlaid yarn G1, G2 interweaves with every other sinker loop of the corresponding tying chain stitch yarn F. In this illustrated embodiment, two warp inlaid yarns G are laid in the sinker loops of the tying chain stitch yarn F of two wales W1, W2, respectively. Alternatively, the warp inlay yarn F may be laid in two chain stitch yarns a distributed on the inner and outer sides of the respective tying chain stitch yarn F and constituting the base structure portion, or the warp inlay yarn G may be laid in the chain stitch yarn a of the outermost wale W4.

Figure 10 shows a seventh embodiment, similar to the second embodiment, two pairs of warp inlaid yarns G1, G5; a pair of warp direction pads G2, G6' in each sinker loop of the two tying chain stitch yarns F differ from the second embodiment in that: two pairs of warp inlaid yarns G1, G5; the G2 and G6 pads are interlaced with every other sinker segment of the single wales W1 and W2 in a symmetrical pattern, and are interlaced repeatedly. The other two warp inlaid yarns G4, G8 are laid in the sinker loop of the chain stitch yarn a of the outermost wale W4. In addition, the warp intarsia yarn a to be inserted into the sinker loop of the outermost chain stitch yarn a may be omitted, or two warp intarsia yarns G3, G7 may be inserted into the sinker loop of the chain stitch yarn a adjacent to and inside the inner fastening chain stitch yarn F.

The present invention is by no means limited to the above-described embodiments, and various other modifications may be proposed. For example, the base structure of each of the above embodiments may have the size of each of the knitting yarns selected according to actual requirements. In particular, the size of the warp inlaid yarn G of the chain stitch yarn a that is padded closest to the latch loop connector may be larger than the size of the warp inlaid yarn G of the inner tie chain stitch yarn F. Such large-sized warp intarsia yarn G makes the outer edge of the stitch seam side portion thick and heavy, and thus, when bent upward or push-up stress is applied to the fastener chain surface, local separation of the fastener chain course can be prevented to the maximum extent.

Meanwhile, the knitting pattern of each knitting yarn constituting the base structure of the fastener tape T is by no means limited to the above-described embodiment except for the tying chain stitch yarn F; for example, while the weft inlaid yarns in the illustrated embodiment have three different weave patterns, they may have a common weave pattern.

Also, the tying chain stitch yarn F stitches in both wales of the above embodiment. Alternatively, they may be padded in three wales corresponding to the zipper row dimension; in this case, at least one warp direction applique yarn G is laid in and interwoven with each tying chain stitch yarn F. Meanwhile, the continuous fastener stringer is by no means limited to a loop type, and may be a Z-shape, or a curved type having a continuous U-shape shown in fig. 10, each of which forms an upper leg wire portion adjacent to the connecting loop and a turn portion connecting the upper and lower leg wire portions to a plane parallel to the base surface of the fastener tape T, being alternately arranged longitudinally on the upper and lower sides between the coupling portions.

Further, the present invention can also be applied to a blind slide fastener in which a continuous fastener stringer ER in the form of a loop or a bent synthetic resin monofilament is first sewn to a loop sewing side of a fastener tape with a joint portion located on the outer edge of a side portion away and with a turn portion located on the outer edge of a side portion close. The finished zipper half is then sewn to the garment with the folded edge portions with the tabs facing outwardly to facilitate engagement with the other zipper half.

In this woven slide fastener stringer of the present invention, since the individual fastener element loops of the continuous fastener stringer ER are fixed at a plurality of positions by a plurality of continuous needle loops of each fastening chain stitch yarn F, a plurality of wales of the loop seam portion EA each extending to the individual fastener element loops are formed while the fastener tape T is woven, and since the continuous fastener stringer ER is supported on the continuous sinker loops, the base structure portion of the loop seam portion EA is formed, and the warp inlay yarns are interlaced therewith in various forms, the base structure of the loop seam portion can be made to give toughness to the woven fabric, so that the fastener element loop ER can be stably stitched to the fastener tape T in both the warp and weft dimensions.

Because the ER code of the zipper coil row is arranged on the foundation structure of the coil sewing edge EA, the disorder of the tooth pitch can be avoided, and the knitting yarns distributed above and below the position of the zipper coil foot line are well balanced, so the connected zipper coil row ER can sufficiently prevent the upward bending stress acting on the surface of the zipper, prevent the local separation caused by lifting the connecting coil and ensure that the zipper can be accurately closed and opened under any using condition.

Further, since the above-described structure of the present invention can be realized by only interlacing the warp direction intarsia yarn G on the sinker loop of the chain stitch yarn a of the base structure of the stitch side portion EA, the slide fastener stringer can be knitted without applying an overload to the knitting needles. Meanwhile, because the zipper can be woven on a needle bed single row, the woven half zipper without the common problems can be manufactured by a simple process.

Claims (4)

1. A woven slide fastener stringer comprising:

(a) a zipper strip (T) knitted to a warp knitted base structure and having a loop stitched edge portion (EA) along one longitudinal edge;

(b) a continuous fastener stringer (ER) knitted along the stitch seam (EA) of the fastener tape (T) and fixed by two or more wales of a fastening chain stitch yarn (F) while knitting the fastener tape (T); the woven half-side zipper is characterized in that:

(c) a continuous needle loop of each of two or more wales formed by the tying chain stitch yarn (F) presses the continuous fastener stringer (ER) from an upper side thereof against the warp-knitted base structure of the fastener tape (T), a continuous sinker loop constituting the base structure portion;

(d) each of the plurality of warp inlaid yarns (G) is laid over and at least partially interwoven with the continuous sinker loops.

2. Woven slide fastener stringer according to claim 1, wherein each of said warp direction inlaid yarns (G) is laid in and along each of said wales in a zigzag pattern interwoven with said sinker loops.

3. Woven slide fastener stringer according to claim 1, wherein a plurality of said warp-direction inlaid yarns (G) are laid in and along said sinker loops of each of said wales, individually in a zigzag pattern, overall in a symmetrical pattern.

4. A woven slide fastener stringer according to claim 1, wherein a plurality of said warp direction inlaid yarns (G) are underlain and interwoven with said sinker loops of said two or more wales, individually in a zigzag pattern, generally in symmetrical patterns, extending across from one another between said wales.