Slide fastener and manufacturing method thereof

Abstract

To address such a problem that when a half part of a separable fastener is crimped to a fastener tape, cracks, etc. may be generated in a reinforcement material.SOLUTION: A separable fastener 10 includes a rod member 11 and a box member 12 individually attached to first and second fastener tapes 3m and 3n. The rod member 11 is crimped to a first laminated part 71 including a first waterproof film 4m, a first fastener tape 3m, a first core string 7m and a first reinforcing member 5m, in such a manner as to pressurize the first waterproof film 4m. The box member 12 is crimped to a second laminated part 72 including a second waterproof film 4n, a second fastener tape 3n, a second core string 7n and a second reinforcing member 5n, in such a manner as to pressurize the second waterproof film 4n.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present disclosure relates to a slide fastener and a method for manufacturing the same. [Background technology]

[0002] Patent Document 1 discloses a liquid-tight slide fastener, and in particular, as shown in Figure 5 of the document, one equipped with a separable bottom end stop. In one fastener tape, a reinforcing material is formed adjacent to the insert pin of the separable bottom end stop. Similarly, in the other fastener tape, a reinforcing material is formed adjacent to the box body and box pin of the separable bottom end stop.

[0003] Patent Document 2 discloses a technique in which a core of a fastener tape is covered on both sides with a reinforcing tape, and the reinforcing tape is pressed at a high pressure on the main tape portion and at a low pressure on the core portion and its vicinity. Patent Document 3 discloses a reinforcing tape in which a film and an adhesive layer satisfy a predetermined thickness relationship. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 4689631 [Patent Document 2] Patent No. 3589442 [Patent Document 3] Patent No. 6181756 Summary of the Invention [Problem to be solved by the invention]

[0005] The inventors of the present application came up with the invention of the present disclosure after conducting detailed studies on a limited configuration in which a reinforcing material is attached to the underside of the fastener tape in a slide fastener with a watertight film and half parts of a separable fastener are crimped to the reinforcing material. Incidentally, Patent Document 1 discloses a liquid-tight slide fastener with a separable bottom end stop, but does not consider at all the configuration in which the separable bottom end stop is crimped. [Means for solving the problem]

[0006] A slide fastener according to one embodiment of the present disclosure includes a first fastener tape, a first water-stopping film bonded to an upper surface of the first fastener tape, a first coil-shaped member disposed on a lower surface of the first fastener tape, and a first core cord at least partially inserted inside the first coil-shaped member, and the first coil-shaped member is connected to a first fastener stringer disposed on a first side edge of the first fastener tape, a second fastener tape, a second water-stopping film bonded to an upper surface of the second fastener tape, and a first core cord at least partially inserted inside the first coil-shaped member. a second coiled member and a second core cord at least partially inserted inside the second coiled member, the second coiled member comprising: a second fastener stringer arranged on a second side edge of the second fastener tape; a slider that moves forward to engage the first and second coiled members and moves backward to disengage the first and second coiled members; and a separable fastener including a rod member and a box member separately attached to the first and second fastener tapes, the rod member being arranged adjacent to the rear end of the first coiled member, and the box member being a slide fastener including a separable fastener arranged adjacent to a rear end of the second coiled member and including a box portion having a slot into which the rod member is inserted, wherein the first fastener stringer further includes a first reinforcing material harder than the first waterstop film and bonded to an area of ​​the underside of the first fastener tape rearward of the first coiled member in a manner covering the first core cord with a width equal to or less than the entire width of the first fastener tape, and the second fastener stringer further includes a first reinforcing material harder than the first waterstop film and bonded to an area of ​​the underside of the second fastener tape rearward of the second coiled member in a manner covering the first core cord with a width equal to or less than the entire width of the first fastener tape, the box member further has a second reinforcing material harder than the second waterproof film and attached to the first laminated portion including the first waterproof film, the first fastener tape, the first core cord, and the first reinforcing material in a manner that covers the second core cord over a width that is less than the entire width of the second fastener tape, the rod member is crimped in a manner that pressurizes the first waterproof film against the first laminated portion including the second waterproof film, the second fastener tape, the second core cord, and the second reinforcing material, and the box member is crimped in a manner that pressurizes the second waterproof film against the second laminated portion including the second waterproof film, the second fastener tape, the second core cord, and the second reinforcing material.

[0007] In some embodiments, the rod member has at least one first pressure member that is plastically deformed to apply pressure to at least the upper surface of the first water-stopping film; and / or the box member has at least one second pressure member that is plastically deformed to apply pressure to at least the upper surface of the second water-stopping film.

[0008] In some embodiments, the rod member includes a first upper plate, a first lower plate, and a first side plate, and the at least one first pressure member is selectively formed on the first upper plate; and / or the box member includes a second upper plate, a second lower plate, and a second side plate, and the at least one second pressure member is selectively formed on the second upper plate.

[0009] In some embodiments, the at least one first pressure member and / or the at least one second pressure member includes at least one protrusion or bent piece.

[0010] In some embodiments, the at least one first pressurizing portion does not penetrate the first water-stop film; and / or the at least one second pressurizing portion does not penetrate the second water-stop film.

[0011] In some embodiments, the at least one first pressurizing portion penetrates the first water-stop film; and / or the at least one second pressurizing portion penetrates the second water-stop film.

[0012] In some embodiments, the at least one first pressure member and the at least one second pressure member are visible when the rod member is inserted into the slot of the box member.

[0013] In some embodiments, the at least one first pressure member and the at least one second pressure member are juxtaposed with the rod member inserted into the slot of the box member.

[0014] In some embodiments, the at least one first pressure member extends longitudinally in a front-to-rear direction that coincides with the extension direction of the rod member; and / or the at least one second pressure member extends longitudinally in a front-to-rear direction that coincides with the extension direction of a box pin of the box member.

[0015] In some embodiments, the upper surface of the first water-stopping film includes a first pressurized area pressurized by the first upper plate and a second pressurized area pressurized by the first pressurizing unit, the second pressurized area being surrounded by the first pressurized area; and / or the upper surface of the second water-stopping film includes a third pressurized area pressurized by the second upper plate and a fourth pressurized area pressurized by the second pressurizing unit, the fourth pressurized area being surrounded by the third pressurized area.

[0016] In some embodiments, each of the first and second reinforcing materials includes a portion having a thickness of 160 μm or more. In some embodiments, each of the first and second reinforcing materials includes at least an adhesive layer and a film layer. The adhesive for bonding the first and second waterstop films to the first and second fastener tapes may be thermosetting, and the adhesive layers of the first and second reinforcing materials may be thermoplastic.

[0017] In some embodiments, the first reinforcement has an underside with a pattern of downwardly projecting ribs molded into it as the material is molded; and / or the second reinforcement has an underside with a pattern of downwardly projecting ribs molded into it as the material is molded.

[0018] In some embodiments, the first fastener tape has a third side edge portion located opposite the first side edge portion in its width direction, and the first reinforcing material is bonded to the underside of the first fastener tape so that the third side edge portion is exposed; and / or the second fastener tape has a fourth side edge portion located opposite the second side edge portion in its width direction, and the second reinforcing material is bonded to the underside of the second fastener tape so that the fourth side edge portion is exposed.

[0019] In some embodiments, the first reinforcing material is thicker than the first water-stop film; and / or the second reinforcing material is thicker than the second water-stop film.

[0020] A method for manufacturing a slide fastener according to another aspect of the present disclosure is a method for manufacturing any of the slide fasteners described above, and includes a step of laminating the first water-stopping film, the first fastener tape, the first core cord, and the first reinforcing material to form a first laminated portion, a step of laminating the second water-stopping film, the second fastener tape, the second core cord, and the second reinforcing material to form a second laminated portion, a step of locally plastically deforming the rod member to tighten it against the first laminated portion, and a step of locally plastically deforming the box pin of the box member to tighten it against the second laminated portion.

[0021] A slide fastener according to yet another embodiment of the present disclosure includes a first fastener tape, a first waterstop film bonded to an upper surface of the first fastener tape, a first coil-shaped member disposed on a lower surface of the first fastener tape, and a first core cord at least partially inserted inside the first coil-shaped member, and the first fastener stringer includes the first coil-shaped member disposed on a first side edge of the first fastener tape, a second fastener tape, a second waterstop film bonded to an upper surface of the second fastener tape, and a first core cord disposed on a lower surface of the second fastener tape. a second fastener stringer including a second coiled member and a second core cord at least partially inserted inside the second coiled member, the second coiled member being disposed on a second side edge of the second fastener tape; a slider that moves forward to engage the first and second coiled members and moves backward to disengage the first and second coiled members; and a separable fastener including a rod member and a box member separately attached to the first and second fastener tapes, the rod member being disposed adjacent to the rear end of the first coiled member, and the box member being disposed adjacent to the rear end of the second coiled member. a slide fastener including a separable stopper arranged adjacent to a rear end of a coil-shaped member and including a box portion having a slot into which the rod member is inserted, wherein the first fastener stringer further includes a first reinforcing material harder than the first waterstop film and bonded to an area on the underside of the first fastener tape rearward of the first coil-shaped member in a manner covering the first core cord with a width equal to or less than the entire width of the first fastener tape, and the second fastener stringer further includes a first reinforcing material harder than the first waterstop film and bonded to an area on the underside of the second fastener tape rearward of the second coil-shaped member in a manner covering the first core cord with a width equal to or less than the entire width of the first fastener tape, The fastener tape further includes a second reinforcing material harder than the second waterproof film, which is bonded to the fastener tape in a manner that covers the second core cord over a width equal to or less than the entire width of the fastener tape, the rod member being crimped to a first laminated portion of the first waterproof film, the first fastener tape, the first core cord, and the first reinforcing material, the box member being crimped to a second laminated portion of the second waterproof film, the second fastener tape, the second core cord, and the second reinforcing material, the first reinforcing material being thicker than the first waterproof film, and / or the second reinforcing material being thicker than the second waterproof film. [Effects of the Invention]

[0022] According to one aspect of the present disclosure, even when half parts of a separable fastener are tightened against a fastener tape, the water-stopping film is compressed, and cracks or the like are prevented from occurring in the reinforcing material. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a schematic top view of a slide fastener according to one embodiment of the present disclosure. [Figure 2] 1 is a schematic partial bottom view of a slide fastener according to one embodiment of the present disclosure, particularly showing its lower end portion. [Figure 3] FIG. 3 is a schematic cross-sectional view taken along the dashed line III-III in FIG. 2. [Figure 4] FIG. 2 is a schematic cross-sectional view of the lower end portion of the first fastener stringer. [Figure 5] FIG. 10 is a schematic rear view of the second fastener stringer. [Figure 6] 6 is a schematic side view of the lower end portion of the first fastener stringer, also showing a schematic partial cross section taken along the dashed line VI in FIG. 2. [Figure 7A] 10 is a schematic diagram showing the insertion of a rod member through an internal passage of a slider into a slot in a box portion of a box member. FIG. [Figure 7B] 6 is a schematic diagram showing a schematic cross section of the slide fastener taken along line VIIB-VIIB in FIG. 1. FIG. [Figure 8] FIG. 10 is a schematic diagram showing the laminated structure of the first fastener stringer in the portion where there is no reinforcing material. [Figure 9] FIG. 10 is a schematic diagram showing the laminate structure of the first fastener stringer in the portion where the reinforcing material is present. [Figure 10] 10 is a schematic diagram showing a non-limiting example in which a pressure portion is formed as a convex portion instead of a bent piece. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0024] Non-limiting embodiments and features of the present invention will be described below with reference to the drawings. Those skilled in the art will be able to combine the various embodiments and / or features without the need for excessive explanation, and will also be able to understand the synergistic effects of such combinations. Duplicate descriptions between embodiments will be omitted as a general rule. The reference drawings are primarily intended to describe the invention, and are simplified for ease of illustration. Each feature is not only effective in the slide fastener disclosed in this specification, but is understood as a universal feature applicable to various other slide fasteners not disclosed in this specification.

[0025] In this specification, the front-rear direction, left-right direction, and up-down direction correspond to the longitudinal direction, width direction, and thickness direction of the slide fastener, respectively. In this specification and claims, the terms "first," "second," "third," and "fourth" are used to distinguish between elements with the same name. For many elements in this specification, the identifier "m" is assigned to "first" and the identifier "n" is assigned to "second." However, in many places, these terms (especially "first" and "second") are intentionally omitted to avoid redundant explanation. Note that the definitions of directions can be redefined based on the descriptions in this specification. For example, the front-rear direction can be defined as the direction corresponding to the movement direction of the slider.

[0026] The structure and function of the slide fastener 1 will be described with reference to Figures 1 to 6. The slide fastener 1 includes fastener stringers 2m, 2n, a slider 8, and a separable fastener 10. The fastener stringers 2m, 2n are flexible, elongated members. The fastener stringers 2m, 2n include fastener tapes 3m, 3n, waterstop films 4m, 4n bonded to the upper surfaces of the fastener tapes 3m, 3n, coiled members 6m, 6n disposed on the lower surfaces of the fastener tapes 3m, 3n, and flexible core cords 7m, 7n at least partially inserted inside the coiled members 6m, 6n. The slider 8 advances to engage the coiled members 6m, 6n and moves backward to disengage the coiled members 6m, 6n.

[0027] The fastener tapes 3m and 3n are woven and / or knitted thin-layer base fabrics. The water-stopping films 4m and 4n are typically made of a polymer material such as polyurethane. The water-stopping films 4m and 4n are bonded to the upper surfaces of the fastener tapes 3m and 3n, respectively (for example, via an adhesive or by direct welding), thereby imparting water-stopping properties to the fastener stringers and, ultimately, to the slide fastener.

[0028] The waterstop films 4m, 4n preferably have a thickness of 5 μm or more, 10 μm or more, 15 μm or more, 20 μm or more, or 25 μm or more. The waterstop films 4m, 4n preferably have a thickness of 50 μm or less, 40 μm or less, or 30 μm or less. By forming the waterstop films 4m, 4n to the above-mentioned thicknesses, it is possible to ensure sufficient cushioning (elasticity) of the waterstop film while suppressing a decrease in the flexibility of the fastener tape due to the adhesion of the waterstop film. When an adhesive is used to adhere the waterstop film, an adhesive layer can be formed between the waterstop film and the fastener tape. The thickness (for example, maximum thickness) of the adhesive layer is preferably within a range of 125 μm to 135 μm. Cushioning (elasticity) can also be increased by ensuring a sufficient adhesive thickness.

[0029] In some cases, the width of the waterstop film is (typically slightly) greater than the width of the fastener tape. As a result, in the width direction of the slide fastener 1, the waterstop films 4m, 4n can have opposing side edges 41m, 41n located closer to the center line CL of the slide fastener 1 than the opposing side edges of the fastener tapes 3m, 3n, promoting closer spacing between or contact between the opposing side edges 41m, 41n. Additionally or alternatively, the waterstop films 4m, 4n can have opposite-facing side edges 42m, 42n located farther from the center line CL of the slide fastener 1 than the opposite-facing side edges 32m, 32n of the fastener tapes 3m, 3n, thereby expanding the waterproofing range in the width direction of the slide fastener 1.

[0030] The coil-shaped members 6m, 6n are engaging members for engaging the fastener stringers 2m, 2n with each other. They engage with each other as the slider 8 advances and disengage as the slider 8 moves backward. The coil-shaped members 6m, 6n are arranged on the opposing side edges 35m, 35n (first side edge, second side edge) of the fastener tapes 3m, 3n. The coil-shaped members 6m, 6n are helical bodies formed by helically winding a monofilament and including a plurality of engaging heads formed at a predetermined pitch. One turn (spiral unit) of this helical body forms one coupling tooth (fastener element). As shown in FIG. 6, each coupling tooth has an upper leg 61, a lower leg 62, an engaging head 63, and an inverted portion 64. The engaging head 63 is formed by molding a monofilament to be wide in the front-rear direction. The engaging head 63 of one of the coil-shaped members 6m, 6n fits between adjacent engaging heads 63 of the other coil-shaped member, and this occurs continuously in the front-rear direction. As a result, the coil-shaped members 6m, 6n are engaged with each other, and the fastener stringers 2m, 2n are engaged with each other, and the slide fastener 1 is closed.

[0031] In some cases, the coiled members 6m, 6n are sewn to the fastener tapes 3m, 3n by double chain stitching. At this time, minute recesses are formed on the upper surfaces of the fastener tapes 3m, 3n by the sewing threads pulling the constituent threads (e.g., weft threads) of the fastener tapes 3m, 3n downward. Advantageously, the adhesive used to attach the waterproof films 4m, 4n to the fastener tapes 3m, 3n fills these minute recesses, thereby enhancing the solidity of the fastener stringers 2m, 2n.

[0032] As described above, the core cords 7m, 7n are at least partially disposed inside the coiled members 6m, 6n, thereby reinforcing the coiled members 6m, 6n. The core cords 7m, 7n extend inside the coiled members 6m, 6n along the front-to-rear direction, and are therefore sandwiched between the row of upper legs 61 arranged in the front-to-rear direction and the row of lower legs 62 arranged in the front-to-rear direction. The core cords 7m, 7n have high flexibility and bulk, and are typically braided cords. Preferably, the core cords 7m, 7n, together with the coiled members 6m, 6n, are sewn to the fastener tapes 3m, 3n with double chain stitching thread.

[0033] The slider 8 is made of metal or resin and includes an upper blade 81, a lower blade 82, a connecting post 83 connecting the upper blade 81 and the lower blade 82 at their front ends, left and right lower flanges 84m, 84n extending upward from the left and right edges of the lower blade 82, and left and right upper flanges 85m, 85n extending downward from the left and right edges of the upper blade 81 (see FIGS. 7A and 7B). The upper blade 81 has a pull-tab attachment portion 88 to which a pull tab 89 is attached. This pull-tab attachment portion 88 houses a locking member that can engage with the coiled members 6m, 6n via a claw hole (described below) that penetrates the upper blade 81. The slider can be used not only as an automatic slider as shown in FIGS. 7A and 7B, but also as a semi-automatic slider, a free slider, or the like.

[0034] The coil-shaped members 6m, 6n are arranged on the underside of the fastener tapes 3m, 3n (opposite the upper surfaces thereof), and therefore the lower flanges 84m, 84n are taller (in the vertical direction) than the upper flanges 85m, 85n. The lower flange 84m and the upper flange 85m face each other in the vertical direction, and a slit is formed between them for inserting the tape portion of the fastener stringer 2m (a laminated portion including the fastener tape 3m and the waterstop film 4m). Similarly, the lower flange 84n and the upper flange 85n face each other in the vertical direction, and a slit is formed between them for inserting the tape portion of the fastener stringer 2n (a laminated portion including the fastener tape 3n and the waterstop film 4n).

[0035] A downwardly protruding partition strip 86 is provided on the upper wing 81. The width of the partition strip 86 is equal to or less than half the maximum width of the connecting post, and preferably equal to or less than one-third. In some embodiments, the partition strip 86 is disposed closer to one of the engaged left and right fastener stringers 2m, 2n in the width direction of the slide fastener 1 (in short, closer to fastener stringer 2n), and has a larger contact area with the film-side edge portion 4n1 of the waterstop film 4n than with the film-side edge portion 4m1 of the waterstop film 4m. In other words, the film-side edge portion 4n1 of the waterstop film 4n is selectively pressed downward by the partition strip 86, which can make the slider 8 slide more easily than when both film-side edges 4m1, 4n1 of the waterstop films 4m, 4n are pressed downward equally (in other words, the force required to slide the slider 8 can be reduced).

[0036] The partition strip 86 has a pressure surface 86j that presses at least the film side edge portion 4n1 of the waterstop film 4n. While the pressure surface 86j of the partition strip 86 does not in any way exclude the film side edge portion 4m1 from being pressed downward together with the film side edge portion 4n1, the degree of this pressure is less. The film side edge portions 4m1, 4n1 of the waterstop films 4m, 4n protrude toward the center line CL of the slide fastener 1 beyond the fastener tapes 3m, 3n, and a gap exists between the fastener tapes 3m, 3n directly below them. The film side edge portions 4m1, 4n1 of the waterstop films 4m, 4n are adjacent in the width direction of the slide fastener 1 (in other words, arranged on both sides of the center line CL of the slide fastener 1), and in some cases, a continuous or intermittent gap exists between them. This gap can increase or decrease depending on the relative orientation of the fastener tapes 3m, 3n.

[0037] The partition strip 86 has a first wall surface 86m and a second wall surface 86n on both sides of the pressure surface 86j, which define the width of the partition strip 86. The first wall surface 86m and the second wall surface 86n are preferably, but not necessarily, perpendicular to the width direction of the slider 8. The first wall surface 86m is positioned closer to the center plane PS of the slider 8 than the second wall surface 86n. In one case, as shown in FIG. 7B , the first wall surface 86m is positioned further outward from the fastener tape 3n than the film-side edge portion 4n1 of the waterstop film 4n. In another case, the first wall surface 86m is positioned further inward from the fastener tape 3n than the film-side edge portion 4n1 of the waterstop film 4n. In yet another case, the first wall surface 86m is positioned directly above the film-side edge portion 4n1 of the waterstop film 4n, and the two are positioned on the same plane. The term "outside of the tape" refers to the direction from a position within the tape surface (e.g., within the upper surface) of the fastener tape to a position outside the tape surface, and the term "inside of the tape" refers to the direction toward the opposite side. The central plane PS of the slider 8 can be substituted for the center line of the slider 8. The center line of the slider 8 is typically included in the center line of the slide fastener 1.

[0038] The distance between the first wall surface 86m of the partition strip 86 and the film side edge 4n1 of the waterstop film 4n in the width direction of the slide fastener 1 may be within the range of the thickness of the waterstop film 4n (for example, 20 μm to 100 μm), thereby ensuring the above-mentioned selective pressurization.

[0039] The partition bar 86 extends rearward from the rear end of the connecting pillar 83 (see FIG. 7A) and optionally includes a portion extending along the side of one side of the connecting pillar 83 (the left side in the illustrated example, which is the side of the rod member 11 relative to the box member 12). The partition bar 86 can be divided into a rear portion 86a sandwiched between the left and right upper flanges 85m, 85n, and a front portion 86b located further forward. The rear end of the rear portion 86a of the partition bar 86 is positioned offset forward from the rear end of the upper wing plate 81.

[0040] Preferably, the width of the gap between the fastener tapes 3m, 3n is within the range of 0.05 to 0.6 mm. Preferably, the width of the partition strip 86 is within the range of 0.2 to 0.6 mm. Optionally, the height of the upper flanges 85m, 85n is within the range of 0.2 to 0.6 mm.

[0041] The film side edge portions 4m1, 4n1 of the waterstop films 4m, 4n can be supported by supporting portions 9 that are part of the adhesive used to bond the waterstop films 4m, 4n to the fastener tapes 3m, 3n. In this case, the supporting portions 9 will also deform when the film side edge portions 4m1, 4n1 deform, and the flexibility of the film side edge portion 4n1 will be reduced by the supporting portions 9. In such a case, it is particularly advantageous for the partition strip 86 to selectively pressurize one of the film side edge portions 4m1, 4n1, as described above.

[0042] In some cases, the adhesive used to bond the waterstop films 4m, 4n to the fastener tapes 3m, 3n penetrates into the structure of the fastener tapes 3m, 3n from their upper surfaces. The dotted line L9 in Fig. 7B schematically shows the boundary between the upper portion of the fastener tapes 3m, 3n that has been permeated with the adhesive and the lower portion of the fastener tapes 3m, 3n that has not been permeated with the adhesive. It should be noted that this boundary may not necessarily be formed on a common plane, but may be formed non-uniformly.

[0043] A claw hole 87 is formed in the upper wing 81 adjacent to the partition strip 86. The claw hole 87 is formed through the upper wing 81 and at least partially receives the claw end of a locking member (not shown). The locking member has a pull-tab attachment portion 88 to which the pull tab of the upper wing 81 is attached. The pull-tab attachment portion 88 has a pivotable locking member (not shown) that is biased to a locked state by a biasing member. The locking member is typically an elastic leaf spring. When a person lifts the pull tab, the attachment shaft of the pull tab presses the locking member, lifting the locking claw of the locking member and releasing it from engagement with the coiled members 6m and 6n.

[0044] The claw hole 87 is positioned near the boundary between the rear portion 86a and the front portion 86b of the partition strip 86, and is typically positioned closer to the rear portion 86a than the boundary between the two. The claw hole 87 is located directly above the coiled member 6m, allowing the locking member to access the coiled member 6m. The waterstop film 4m protrudes from the fastener tape 3m toward the center plane PS of the slider 8, and therefore there is a possibility that the waterstop film 4m may be positioned directly below the claw hole 87. The locking member is made of metal and has a tapered claw tip at the bottom, which can reduce the effect of interference with the waterstop film 4m.

[0045] The fastener stringers 2m, 2n further have reinforcing materials 5m, 5n attached (for example, by partial melting) to the areas on the undersides of the fastener tapes 3m, 3n rearward of the coil-shaped members 6m, 6n in a manner that covers the core cords 7m, 7n in a width that is equal to or less than the entire width of the fastener tapes 3m, 3n. The reinforcing materials 5m, 5n are harder than the waterstop films 4m, 4n, which can be verified, for example, by employing a Vickers hardness test.

[0046] In some cases, the reinforcing materials 5m, 5n are thicker than the waterstop films 4m, 4n. Even if such a feature is adopted, when the half parts of the fastener 10 (the rod member 11 and the box member 12) are crimped to the laminated portions 71, 72 described below, the hardness of the reinforcing materials is compensated for by the softness of the waterstop film, making it less likely that cracks will occur in the reinforcing materials.

[0047] The reinforcing materials 5m, 5n are selectively bonded to the lower surfaces of the fastener tapes 3m, 3n, and are not disposed on the upper surfaces thereof (unlike conventional methods). Therefore, the reinforcing materials 5m, 5n are formed thicker than usual, and typically include portions having a thickness of 160 μm or more. This makes the reinforcing materials 5m, 5n more susceptible to cracking. However, as described above, the hardness of the reinforcing materials is compensated for by the softness of the waterstop film, thereby preventing cracking in the reinforcing materials. Although no reinforcing materials are bonded to the upper surfaces of the fastener tapes 3m, 3n, the waterstop films 4m, 4n are bonded thereto, ensuring sufficient thickness for fastening the half parts of the fastener 10.

[0048] In some cases, the reinforcements 5m, 5n have a knurled underside with downwardly protruding ribs formed in a predetermined pattern according to the molding of the material, which provides the underside of the reinforcements 5m, 5n with an uneven, non-slip surface, improving the operability of opening and closing the fastener 10. When the reinforcements 5m, 5n are knurled, the reinforcements 5m, 5n have a maximum thickness at the ribs and a minimum thickness at the base layer where the ribs are not provided.

[0049] In some cases, the reinforcing material 5m, 5n includes at least a film layer and an adhesive layer (e.g., a laminate thereof), and optionally, at least one intermediate layer is interposed between the two. When the reinforcing material 5m, 5n has a multilayer structure, its thickness increases and it tends to become hard (which makes it more susceptible to cracking). In this regard, in the present disclosure, as described above, the hardness of the reinforcing material is compensated for by the softness of the waterstop film, thereby suppressing the occurrence of cracks and the like in the reinforcing material.

[0050] The film layer of the reinforcing material 5m, 5n may be a nylon 6 film or a polyamide, polyester, polyolefin, or polyurethane elastomer film. The adhesive layer of the reinforcing material 5m, 5n may be a thermoplastic adhesive, preferably a polyester thermoplastic adhesive. The intermediate layer is an anchor coating agent, such as a two-component curing adhesive consisting of a copolymer of a polyol as the base agent and a diisocyanate as the curing agent, and has good adhesion to the film layer and adhesive layer. When the reinforcing material 5m, 5n is bonded to the fastener tape 3m, 3n, the adhesive layer may penetrate into the structure of the fastener tape 3m, 3n. This inhibits the free movement of the constituent threads of the fastener tape 3m, 3n (an effect consistent with the intended use of the reinforcing material 5m, 5n).

[0051] When the reinforcing material 5m, 5n has the above-mentioned three-layer structure, the thickness of the reinforcing material 5m, 5n can be measured using the lower surface of the fastener tape 3m, 3n as the reference plane. That is, the thickness of the adhesive layer that has penetrated into the structure of the fastener tape 3m, 3n is excluded from the thickness of the reinforcing material 5m, 5n. The thickness of the film layer (e.g., the maximum thickness) can be within the range of 200 to 300 μm.

[0052] The reinforcing members 5m, 5n may be narrower than the fastener tapes 3m, 3n. As a result, the lower surfaces of the fastener tapes 3m, 3n are exposed and not covered by the reinforcing members 5m, 5n at their side edges 36m, 36n (third and fourth side edges) that are farther from the center line CL of the slide fastener 1. This makes it more difficult to peel the reinforcing members 5m, 5n from the fastener tapes 3m, 3n. In some cases, overflow of the adhesive used to bond the reinforcing members 5m, 5n is suppressed. That is, even if the adhesive in the lower layer of the film layer overflows laterally beyond the film layer, it will only penetrate into the structure of the fastener tapes 3m, 3n. The side edge 36m has a width defined between the imaginary lines L1 and L3. Similarly, the side edge 36n has a width defined between the imaginary lines L2 and L4.

[0053] The separable fastener 10 includes a rod member 11 and a box member 12, both made of metal. The rod member 11 and the box member 12 are attached to the fastener tapes 3m and 3n, respectively. By engaging the rod member 11 and the box member 12, the left and right fastener stringers 2m and 2n can be brought into an initial engagement state. The rod member 11 is disposed adjacent to the rear end of the coil-shaped member 6m, and the box member 12 is disposed adjacent to the rear end of the coil-shaped member 6n. The rod member 11 typically has a rear end portion whose width gradually decreases toward the rear, which promotes smooth insertion into the interior of the slider 8 and the slot of the box member 12. A notch 11j may be formed at the front end of the rod member 11 to receive the engagement head of the rearmost end of the coil-shaped member 6n.

[0054] In this embodiment, the rod member 11 is crimped in a manner that presses the first waterproof film 4m against a first laminated portion 71 that includes (typically consists of) a first waterstop film 4m, a first fastener tape 3m, a first core cord 7m, and a first reinforcing material 5m. Additionally or alternatively, the box member 12 is crimped in a manner that presses the second waterproof film 4n against a second laminated portion 72 that includes (typically consists of) a second waterstop film 4n, a second fastener tape 3n, a second core cord 7n, and a second reinforcing material 5n. The first and second laminated portions include hard portions of the reinforcing materials 5m, 5n, but also include softer portions of the waterstop films 4m, 4n. Therefore, by tightening the half parts of the fastener 10 to the laminated portions 71, 72 in a manner that applies pressure to the water-stopping films 4m, 4n, the occurrence of cracks in the reinforcing materials 5m, 5n is suppressed, and good operability of the fastener 10 can be maintained over long-term use of the slide fastener 1.

[0055] In some cases, the flexural modulus of the water-stopping films 4m and 4n is half or less of the flexural modulus of the reinforcing materials 5m and 5n. The flexural modulus of the water-stopping films 4m and 4n is 100 to 1000 (or even 100 to 400) kg / cm 2 On the other hand, the flexural modulus of the reinforcement 5m and 5n is 3000 to 9000 kg / cm 2 This can further enhance the above-mentioned effects. The flexural modulus is based on the bending test of JIS K 7171.

[0056] The reinforcing members 5m, 5n are harder than the waterstop films 4m, 4n, which can improve the operability of opening and closing the slide fastener 1 when attached to a garment. For example, when the closed slide fastener 1 or its fastener stringers 2m, 2n is lifted while the slide fastener 1 is sewn to a garment, the lower end portions of the engaged left and right fastener stringers 2m, 2n (where the reinforcing members 5m, 5n are located) change position from a flat state to a tapered state widening downward (as a result, the lower side of the slide fastener 1 becomes concave). This makes it easier for the wearer of the garment to grasp the reinforcing members 5m, 5n with their fingers, making it easier to insert the rod member 11 into the box member 12. For the same reason, operability can be improved when disengaging the rod member 11 from the box member 12. When the above-mentioned knurling is performed, the unevenness of the reinforcing members 5m, 5n acts as a grip, making it easier to grasp the lower end portions of the fastener stringers 2m, 2n. For this purpose, it is preferable that the knurled projections extend continuously across a certain width of the reinforcing members 5m, 5n, for example, extending parallel to the left and right direction of the slide fastener 1, or extending diagonally as shown in FIG.

[0057] In some cases, the crimping of the rod member 11 is performed through / accompanying at least localized plastic deformation of the rod member 11. Similarly, the crimping of the box member 12 is preferably performed through / accompanying at least localized plastic deformation of the box member 12. The localized plastic deformation is the result of mechanical processing of a portion (typically a flat portion) of the half-parts of the fastener 10, such as cutting, pressing, and / or bending. Therefore, there is no particular limitation on the specific shape of the resulting pressed portion.

[0058] Typically, the rod member 11 has one or more convex portions or one or more bent pieces formed as pressure applying portions in response to the localized plastic deformation described above. Similarly, the box member 12 has one or more convex portions or one or more bent pieces formed as pressure applying portions in response to the localized plastic deformation described above. The pressure applying portions, such as the convex portions or bent pieces, apply pressure to the laminated portion (preferably, selectively apply pressure to the waterstop film) or bite into the laminated portion (preferably, selectively bite into the waterstop film). This promotes strong fixation of the half parts of the fastener 10 to the laminated portion. The number of pressure applying portions formed on the rod member 11 is preferably one, but may be two or more. The same applies to the box member 12. If the waterstop film 4m is compressed by multiple pressure applying portions of the rod member 11, there is a risk that the waterstop film 4m will be stretched or broken between different pressure applying portions. By having the rod member 11 have a single pressure applying portion, such a problem is avoided or suppressed. The same applies to the box member 12. Typically, the number of pressure portions of the bar member 11 is equal to the number of pressure portions of the box member 12 .

[0059] Explaining with reference to Figure 4, the rod member 11 has an upper plate 21 and a lower plate 22 that sandwich the first laminated portion 71 from above and below, a side plate 23 that connects the upper plate 21 and the lower plate 22, and a flange 24 that protrudes upward from the lower plate 22 and faces the side plate 23 (in the width direction). In some cases, after the first laminated portion 71 is inserted between the upper plate 21 and the lower plate 22, the rod member 11 is plastically deformed by pressure so as to encase the first laminated portion 71 while reducing the vertical distance between the upper plate 21 and the lower plate 22 (see dotted lines in Figure 4), but this is not necessarily the case. It is also possible to achieve attachment of the rod member 11 by relying only on the above-mentioned local plastic deformation.

[0060] The description will be made with reference to Figure 3. The box member 12 has a box portion 12a and a box pin 12b. Typically, the box member 12 is a single-part product in which the box pin 12b and the box portion 12a are integrally molded (for example, by die-cast molding), but it may also be a two-part product in which the box pin 12b is combined with the box portion 12a by fitting or the like. The pin member 11 and the box member 12 are engaged and disengaged as the pin member 11 is inserted into and removed from the slot in the box portion 12a.

[0061] Like the bar member 11, the box pin 12b has an upper plate 31 and a lower plate 32 that sandwich the second laminated portion 72 from above and below, a side plate 33 that connects the upper plate 31 and the lower plate 32, and a flange 34 that protrudes upward from the lower plate 32 and faces the side plate 33 (in the width direction). The box portion 12a can be plastically deformed like the bar member 11, but this is not necessarily the case. The box member 12 can also be attached by relying only on the localized plastic deformation described above. The box pin 12b is connected to the box portion 12a and is not easily plastically deformed.

[0062] The box section 12a has an upper plate 41 and a lower plate 42 that define a slot into which the rod member 11 is inserted and removed, and a tape groove that spatially communicates with the slot. The box section 12a has a side surface 43 that connects the lower surface of the upper plate 41 to the upper surface of the lower plate 42. The upper plate 41 and the lower plate 42 have opposing flanges 44, 45 that define the tape groove. The slot width is defined between the flanges 44, 45 and the side surface 43. The portion of the fastener stringer 2m adjacent to the rod member 11 (the laminated portion of the fastener tape 3m, the waterstop film 4m, and the reinforcing material 5m) is inserted and removed into the tape groove.

[0063] The rod member 11 has at least one first pressure member 13 that is plastically deformed so as to pressurize at least the upper surface of the first water-stopping film 4m (see FIGS. 1 and 6). Similarly, the box member 12 (typically, the box pin 12b) has at least one second pressure member 14 that is plastically deformed so as to pressurize at least the upper surface of the second water-stopping film 4n. The pressure member 13 shown in FIG. 6 is a bent piece that is extruded downward from the flat plate portion by mechanical processing (for example, using a punch) and bent by pressing. The pressure member 13 preferably extends gradually downward as it extends from the base end connected to the flat plate portion toward its free end. Note that the above-mentioned mechanical processing forms a wall surface 13a in the flat plate portion corresponding to the free end of the bent piece. The pressure member 14 can be formed in the same manner as the pressure member 13, and is not shown in the drawings.

[0064] The upper surface of the waterstop film 4m includes a first pressure-applied region pressurized by the upper plate 21 and a second pressure-applied region pressurized by the pressurizing unit 13. The upper surface of the waterstop film 4n includes a third pressure-applied region pressurized by the upper plate 31 and a fourth pressure-applied region pressurized by the pressurizing unit 14. Preferably, the second pressure-applied region is surrounded by the first pressure-applied region, and similarly, the fourth pressure-applied region is surrounded by the third pressure-applied region. This ensures that even if the waterstop films 4m and 4n are ruptured by the pressurizing units 13 and 14, the rupture is easily closed by the surrounding film material. The first and third pressure-applied regions may be located in a plane perpendicular to the vertical direction. The second and fourth pressure-applied regions may be formed to extend obliquely from the first and third pressure-applied regions. Typically, the second and fourth pressure-applied regions have smaller areas than the first and third pressure-applied regions, e.g., less than half or less than one-third of the first and third pressure-applied regions.

[0065] The pressure portions 13, 14 are visible when the rod member 11 is inserted into the slot of the box member 12. When the rod member 11 is inserted into the slot of the box member 12, the pressure portions 13, 14 are arranged side by side (in the width direction), which allows the stopper 10 to have a symmetrical pattern with respect to the center line CL of the slide fastener 1, and the appearance of the stopper 10 is less likely to cause discomfort to the user. More preferably, the pressure portions 13, 14 extend longitudinally in the front-to-rear direction, which coincides with the extending direction of the rod member 11 and the box pin 12b.

[0066] In some cases, the pressure applying portions 13, 14 are formed so as not to penetrate the waterstop films 4m, 4n. This prevents or suppresses the waterstop performance of the slide fastener 1 from being reduced by the pressure applying portions 13, 14. In other cases, the pressure applying portions 13, 14 are formed so as to penetrate the waterstop films 4m, 4n. In the case shown in Figure 6, the pressure applying portion 13 bites into the waterstop film 4m at its free end and penetrates the waterstop film 4m. Even in such cases, it is expected that sufficient waterstop performance will be ensured thanks to the waterstop films 4m, 4n, which are softer than the reinforcing members 5m, 5n.

[0067] 6, the waterstop film 4m and the fastener tape 3m shift slightly upward (for example, from a lower plane to an upper plane perpendicular to the up-down direction) near the front end of the rod member 11 when the pressure between the upper plate 21 and the lower plate 22 is released or for other reasons. This increases the flatness of the surface of the fastener stringer 2m. Similarly, the waterstop film 4n and the fastener tape 3n may shift slightly upward near the front end of the box pin 12b.

[0068] Referring to FIG. 7A, the procedure for inserting the rod member 11 into the slot SL of the box member 12 will be described. First, the user pulls the slider 8 to its rearmost position. At this time, the slider 8 hits the front surface of the box portion 12a, and the box pin 12b is inserted into the slider 8. The user then pinches the rear end of the fastener stringer 2n with the thumb and index finger of one hand. The user then pinches the rear end of the fastener stringer 2m with the thumb and index finger of the other hand and inserts the rod member 11 into the slot SL through the internal passage of the slider 8. After the rod member 11 is completely inserted into the slot SL, the slider 8 is advanced, and accordingly, the engaging teeth (or engaging heads 63) of the left and right coil-shaped members 6m, 6n alternately engage. In the present disclosure, all half parts of the fastener 10 are made of metal and therefore have high mechanical strength, and in particular, they are attached by crimping, providing high attachment strength. During tightening, the laminated portion where the half parts are attached contains not only the reinforcing material but also the waterproof film, so the hardness of the reinforcing material is compensated for by the softness of the waterproof film, making it less likely for cracks to occur in the reinforcing material. This allows the fastener 10 to maintain good operability over long periods of use of the slide fastener 1.

[0069] FIG. 8 schematically shows that the waterstop films 4m and 4n are bonded to the upper surface of the fastener tape 3m via an adhesive 4g. The adhesive 4g may be a thermosetting adhesive. FIG. 9 schematically shows the fastener tape 3m sandwiched between the waterstop film 4m and a reinforcing material 5m. The reinforcing material 5m includes a film layer 96, an intermediate layer 97, and an adhesive layer 98 (the intermediate layer 97 is optional). The adhesive layer 98 may be a thermoplastic adhesive, unlike the adhesive 4g. In this way, different types of adhesives, thermoplastic and thermosetting, can permeate the fastener tape 3m. Because neither adhesive is thermoplastic, the half parts of the fastener 10 can maintain sufficient attachment strength even when exposed to high temperatures.

[0070] 10 shows a non-limiting example in which pressure portion 13 is formed as a convex portion rather than a bent piece. Additionally or alternatively, pressure portion 14 can also be formed as a convex portion rather than a bent piece.

[0071] The manufacturing method of the slide fastener 1 will be obvious to those skilled in the art from the above explanation. In summary, first, a polyurethane film is bonded to the upper surface of the fastener chain, which is made up of fastener stringers 2m, 2n in which coil-shaped members 6m, 6n are engaged with each other, using an adhesive. A thermosetting adhesive can be used, but in some cases a thermoplastic adhesive can also be used. For the purpose of this bonding, a method can be used in which the laminate of the fastener chain and polyurethane film is passed through the gap between the lower and upper rolls and pressure-bonded.

[0072] Next, a cutter is used to cut lines in the polyurethane film along the center line of the fastener chain, thereby dividing the polyurethane film into individual fastener stringers 2m and 2n. Next, space portions are formed at predetermined intervals along the longitudinal direction of the fastener chain. Specifically, the continuous coil members 6m and 6n are removed at predetermined intervals to ensure areas for attaching the fasteners. Next, a reinforcing material is attached to the underside of the fastener tape in the space portions of the fastener chain with the polyurethane film. Simultaneously or subsequently, the reinforcing material is knurled. Then, the fastener chain with the polyurethane film is cut at the space portions to cut out a fastener chain of a predetermined length. A rod member 11 is crimped to the fastener stringer on one side of the cut-out fastener chain, and a box member 12 is crimped to the fastener stringer 2n on the other side. In this manner, a slide fastener 1 with a separable fastener 10 can be manufactured.

[0073] The rod member 11 and the box member 12 are crimped to the laminated portions 71, 72, which include both a soft water-stopping film and a hard reinforcing material. In this regard, the rod member 11 and the box member 12 (e.g., the box rod 12b) can be locally plastically deformed. Even in this manner, the laminated portions 71, 72 include both a soft water-stopping film and a hard reinforcing material, which prevents cracks from occurring in the reinforcing material. Additionally or alternatively, the reinforcing material 5m, 5n can be thicker than the water-stopping films 4m, 4n. Even when the rod member 11 and the box member 12 are crimped to the laminated portions 71, 72, the laminated portions 71, 72 include both a soft water-stopping film and a hard reinforcing material, which prevents cracks from occurring in the reinforcing material.

[0074] It will be clear to those skilled in the art that the above-mentioned manufacturing process includes the following steps: The manufacturing method of a slide fastener according to the present disclosure includes a step of laminating a first waterstop film 4m, a first fastener tape 3m, a first core cord 7m, and a first reinforcing material 5m to form a first laminated portion 71, a step of laminating a second waterstop film 4n, a second fastener tape 3n, a second core cord 7n, and a second reinforcing material 5n to form a second laminated portion 72, a step of locally plastically deforming the rod member 11 to crimp it against the first laminated portion 71, and a step of locally plastically deforming the box pin 12b of the box member 12 to crimp it against the second laminated portion 72.

[0075] In some cases, general-purpose sliders are provided with a partition strip 86. However, in this case, there is a concern that the partition strip 86 may come into contact with the water-stopping films 4m, 4n, increasing the sliding resistance of the slider 8. This specification also discloses an invention that addresses this issue and contributes to reducing the sliding resistance of the slider 8. Note that custom-ordering a slider without a partition strip 86 may result in an increase in the cost of the slide fastener 1.

[0076] Appendix 1 a first zipper stringer 2m including a first zipper tape 3m, a first waterstop film 4m bonded to the upper surface of the first zipper tape 3m, and a first coil-shaped member 6m arranged on the lower surface side of the first zipper tape 3m, the first coil-shaped member 6m being arranged on a first side edge portion 35m of the first zipper tape 3m; a second zipper stringer 2n including a second zipper tape 3n, a second waterstop film 4n bonded to the upper surface of the second zipper tape 3n, and a second coil-shaped member 6n arranged on the lower surface side of the second zipper tape 3n, wherein the second coil-shaped member 6n is arranged on a second side edge portion 35n of the second zipper tape 3n; A slide fastener (1) comprising a slider (8) that moves forward to engage first and second coil-shaped members (6m, 6n) and moves backward to disengage the first and second coil-shaped members (6m, 6n), The slider 8 has an upper blade 81, a lower blade 82, a connecting column 83 connecting the upper blade 81 and the lower blade 82 at their front ends, left and right lower flanges 84m, 84n standing upward from both left and right edges of the lower blade 82, and left and right upper flanges 85m, 85n rising downward from both left and right edges of the upper blade 81, and the upper blade 81 includes a partition strip 86 protruding downward, The first and second water-stopping films 4m and 4n each have first and second film side edge portions 4m1 and 4n1 adjacent to each other in the width direction of the slide fastener 1, A slide fastener in which the partition strip 86 is positioned closer to the second fastener stringer 2n of the first and second fastener stringers 2m, 2n in an engaged state in the width direction of the slide fastener 1, and has a larger contact area with the second film side edge 4n1 of the second water-stopping film 4n than with the first film side edge 4m1 of the first water-stopping film 4m.

[0077] Appendix 2 The partition bar 86 has a first wall surface 86m and a second wall surface 86n that define its width, The slide fastener according to claim 1, wherein the first wall surface 86m is disposed closer to the center plane PS of the slider 8 than the second wall surface 86n.

[0078] Appendix 3 A slide fastener as described in Appendix 1 or 2, wherein the first wall surface 86m is located outside the second fastener tape 3n relative to the film side edge portion 4n1 of the second water-stopping film 4n; or the first wall surface 86m is located inside the second fastener tape 3n relative to the film side edge portion 4n1 of the second water-stopping film 4n; or the first wall surface 86m is located directly above the film side edge portion 4n1 of the second water-stopping film 4n, and both are arranged on the same plane.

[0079] Appendix 4 A slide fastener as described in any one of Appendices 1 to 3, wherein the film side edge portions 4m1, 4n1 of the first and second waterstop films 4m, 4n are supported by first and second support portions 9 which are part of the adhesive used to bond the first and second waterstop films 4m, 4n to the first and second fastener tapes 3m, 3n, respectively.

[0080] Appendix 5 A slide fastener according to any one of appendices 1 to 4, wherein the width of the partition strip 86 is equal to or less than half the maximum width of the connecting rod 83 and includes a portion extending rearward from the rear end of the connecting rod 83. Optionally, the width of the gap between the first and second fastener tapes 3m, 3n is within a range of 0.05 to 0.6 mm, and the width of the partition strip 86 is within a range of 0.2 to 0.6 mm.

[0081] The inventions described in the appended claims above can be combined in any manner with the inventions described in the claims of this application.

[0082] In light of the above disclosure, those skilled in the art can make various modifications to each feature and each embodiment. The reference numerals in the claims are for reference only and should not be used for the purpose of limiting the scope of the claims. The slide fastener of the present disclosure can also be provided with a water repellent agent at an appropriate location. [Explanation of symbols]

[0083] 1: Slide fastener 2m, 2n: Zipper stringer 3m, 3n: Zipper tape 4m, 4n: Water-stopping film 5m, 5n: Reinforcement 6m, 6n: Coiled members 7m,7n: Core string 8: Slider 10: Fastener 11: Bar member 12: Box material 12a: Hakobe 12b: Box bar 13, 14: Pressure section 71, 72: Laminated section

Claims

1. a first fastener stringer (2m) including a first fastener tape (3m), a first water-stopping film (4m) bonded to the upper surface of the first fastener tape (3m), a first coil-shaped member (6m) arranged on the lower surface side of the first fastener tape (3m), and a first core cord (7m) at least partially inserted inside the first coil-shaped member (6m), wherein the first coil-shaped member (6m) is arranged on a first side edge portion (35m) of the first fastener tape (3m); a second zipper stringer (2n) including a second zipper tape (3n), a second water-stopping film (4n) bonded to the upper surface of the second zipper tape (3n), a second coil-shaped member (6n) arranged on the lower surface side of the second zipper tape (3n), and a second core string (7n) at least partially inserted inside the second coil-shaped member (6n), wherein the second coil-shaped member (6n) is arranged on a second side edge portion (35n) of the second zipper tape (3n); a slider (8) that moves forward to engage the first and second coiled members (6m, 6n) and moves backward to disengage the first and second coiled members (6m, 6n); A slide fastener (1) comprising a separable fastener (10) including a rod member (11) and a box member (12) attached separately to the first and second fastener tapes (3m, 3n), wherein the rod member (11) is disposed adjacent to the rear end of the first coiled member (6m) and the box member (12) is disposed adjacent to the rear end of the second coiled member (6n), and the separable fastener (10) includes a box portion (12b) having a slot into which the rod member (11) is inserted, The first fastener stringer (2m) further includes a first reinforcing material (5m) harder than the first water-stopping film (4m), which is bonded to an area of ​​the underside of the first fastener tape (3m) rearward of the first coil-shaped member (6m) in a manner that covers the first core cord (7m) with a width equal to or less than the entire width of the first fastener tape (3m), The second fastener stringer (2n) further includes a second reinforcing material (5n) harder than the second water-stopping film (4n), which is bonded to an area of ​​the underside of the second fastener tape (3n) rearward of the second coil-shaped member (6n) in a manner that covers the second core cord (7n) with a width equal to or less than the entire width of the second fastener tape (3n), The rod member (11) is crimped in a manner that pressurizes the first waterproof film (4 m) against a first laminated portion (71) including the first waterproof film (4 m), the first fastener tape (3 m), the first core cord (7 m), and the first reinforcing material (5 m), The box member (12) is tightened in a manner that pressurizes the second waterproof film (4n) against a second laminated portion (72) including the second waterproof film (4n), the second fastener tape (3n), the second core cord (7n), and the second reinforcing material (5n).

2. The rod member (11) has at least one first pressure portion (13) that is plastically deformed so as to pressurize at least the upper surface of the first water-stopping film (4m); and / or 2. The slide fastener according to claim 1, wherein the box member (12) has at least one second pressure portion (14) plastically deformed so as to apply pressure to at least the upper surface of the second water-stopping film (4n).

3. The rod member (11) includes a first upper plate (21), a first lower plate (22), and a first side plate (23), and the at least one first pressure portion (13) is selectively formed on the first upper plate (21); and / or The slide fastener according to claim 2, wherein the box member (12) includes a second upper plate (31), a second lower plate (32), and a second side plate (33), and the at least one second pressure portion (14) is selectively formed on the second upper plate (31).

4. 3. The slide fastener according to claim 2, wherein the at least one first pressure portion (13) and / or the at least one second pressure portion (14) includes at least one convex portion or bent piece.

5. The at least one first pressure member (13) does not penetrate the first water-stopping film (4m); and / or The slide fastener according to claim 4, wherein the at least one second pressure portion (14) does not penetrate the second water-stop film (4n).

6. The at least one first pressure member (13) penetrates the first water-stopping film (4m); and / or The slide fastener according to claim 4, wherein the at least one second pressure portion (14) penetrates the second water-stopping film (4n).

7. The slide fastener according to claim 4, wherein the at least one first pressure portion (13) and the at least one second pressure portion (14) are visible when the rod member (11) is inserted into the slot (SL) of the box member (12).

8. The slide fastener according to claim 4, wherein the at least one first pressure member (13) and the at least one second pressure member (14) are arranged side by side when the rod member (11) is inserted into the slot (SL) of the box member (12).

9. The at least one first pressure member (13) extends longitudinally in a front-rear direction that coincides with the extending direction of the rod member (11); and / or 5. The slide fastener according to claim 4, wherein the at least one second pressure portion (14) extends longitudinally in a front-rear direction that coincides with an extending direction of a box pin (12b) of the box member (12).

10. The upper surface of the first water-stopping film (4m) includes a first pressurized area pressurized by the first upper plate (21) and a second pressurized area pressurized by the first pressurizing unit (13), and the second pressurized area is surrounded by the first pressurized area; and / or A slide fastener as described in claim 3, wherein the upper surface of the second water-stopping film (4n) includes a third pressurized area pressurized by the second upper plate (31) and a fourth pressurized area pressurized by the second pressure member (14), and the fourth pressurized area is surrounded by the third pressurized area.

11. 11. A slide fastener according to claim 1, wherein each of the first and second reinforcing members (5m, 5n) includes a portion having a thickness of 160 [mu]m or more.

12. 12. A slide fastener according to claim 11, wherein each of the first and second reinforcements (5m, 5n) comprises at least an adhesive layer and a film layer.

13. 13. A slide fastener according to claim 12, wherein an adhesive for bonding the first and second water-stopping films (4m, 4n) to the first and second fastener tapes (3m, 3n) is thermosetting, and the adhesive layer (98) of the first and second reinforcing members (5m, 5n) is thermoplastic.

14. the first reinforcement (5m) has an underside on which a pattern of downwardly projecting ribs is formed in accordance with the molding of the material; and / or 11. A slide fastener according to claim 1, wherein the second reinforcing member (5n) has a lower surface on which downwardly projecting ribs are formed in a predetermined pattern according to the molding of the material.

15. The first fastener tape (3m) has a third side edge (36m) located opposite the first side edge (35m) in the width direction thereof, and the first reinforcing material (5m) is bonded to the lower surface of the first fastener tape (3m) so that the third side edge (36m) is exposed; and / or 11. A slide fastener according to claim 1, wherein the second fastener tape (3n) has a fourth side edge (36n) located opposite the second side edge (35n) in its width direction, and the second reinforcing material (5n) is bonded to the underside of the second fastener tape (3n) so that the fourth side edge (36n) is exposed.

16. A slide fastener according to any one of claims 1 to 10, wherein the first reinforcing material (5m) is thicker than the first water-stopping film (4m); and / or the second reinforcing material (5n) is thicker than the second water-stopping film (4n).

17. A method for manufacturing a slide fastener (1) according to claim 1, a step of laminating the first water-stopping film (4 m), the first fastener tape (3 m), the first core cord (7 m), and the first reinforcing material (5 m) to form a first laminated portion (71); a step of laminating the second water-stopping film (4n), the second fastener tape (3n), the second core cord (7n), and the second reinforcing material (5n) to form a second laminated portion (72); a step of locally plastically deforming the rod member (11) to crimp it against the first laminated portion (71); A method for manufacturing a slide fastener, comprising a step of locally plastically deforming a box pin (12b) of the box member (12) to crimp it against the second laminated portion (72).

18. a first fastener stringer (2m) including a first fastener tape (3m), a first water-stopping film (4m) bonded to the upper surface of the first fastener tape (3m), a first coil-shaped member (6m) arranged on the lower surface side of the first fastener tape (3m), and a first core cord (7m) at least partially inserted inside the first coil-shaped member (6m), the first fastener stringer (2m) having the first coil-shaped member (6m) arranged on a first side edge portion (35m) of the first fastener tape (3m); a second zipper stringer (2n) including a second zipper tape (3n), a second water-stopping film (4n) bonded to the upper surface of the second zipper tape (3n), a second coil-shaped member (6n) arranged on the lower surface side of the second zipper tape (3n), and a second core string (7n) at least partially inserted inside the second coil-shaped member (6n), wherein the second coil-shaped member (6n) is arranged on a second side edge portion (35n) of the second zipper tape (3n); a slider (8) that moves forward to engage the first and second coiled members (6m, 6n) and moves backward to disengage the first and second coiled members (6m, 6n); A slide fastener (1) comprising a separable fastener (10) including a rod member (11) and a box member (12) separately attached to the first and second fastener tapes (3m, 3n), wherein the rod member (11) is disposed adjacent to the rear end of the first coiled member (6m) and the box member (12) is disposed adjacent to the rear end of the second coiled member (6n), and the separable fastener (10) includes a box portion (12b) having a slot into which the rod member (11) is inserted, The first fastener stringer (2m) further includes a first reinforcing material (5m) harder than the first water-stopping film (4m), which is bonded to an area of ​​the underside of the first fastener tape (3m) rearward of the first coil-shaped member (6m) in a manner that covers the first core cord (7m) with a width equal to or less than the entire width of the first fastener tape (3m), The second fastener stringer (2n) further includes a second reinforcing material (5n) harder than the second water-stopping film (4n), which is bonded to an area of ​​the underside of the second fastener tape (3n) rearward of the second coil-shaped member (6n) in a manner that covers the second core cord (7n) with a width equal to or less than the entire width of the second fastener tape (3n), The rod member (11) is crimped to a first laminated portion (71) of the first water-stopping film (4 m), the first fastener tape (3 m), the first core cord (7 m), and the first reinforcing material (5 m), The box member (12) is crimped to a second laminated portion (72) of the second water-stopping film (4n), the second fastener tape (3n), the second core cord (7n), and the second reinforcing material (5n), A slide fastener, wherein the first reinforcing material (5m) is thicker than the first water-stopping film (4m), and / or the second reinforcing material (5n) is thicker than the second water-stopping film (4n).

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