WO2017104008A1

WO2017104008A1 - Slide fastener having clasp

Info

Publication number: WO2017104008A1
Application number: PCT/JP2015/085123
Authority: WO
Inventors: 佳敬児島; 成吉高澤; 奈津子才津
Original assignee: Ykk株式会社
Priority date: 2015-12-15
Filing date: 2015-12-15
Publication date: 2017-06-22
Also published as: TW201722306A; CN108348048B; CN108348048A; TWI621413B

Abstract

A clasp (500) including: a main body section (510) including upper and lower flat plate sections (520, 530) coupled between first and second core cords (115, 125); upper and lower protruding sections (540, 550) provided on the upper surface (521) of the upper flat plate section (520) and the lower surface (531) of the lower flat plate section (530) and protruding in mutually opposite directions; and a restraining surface (560) arranged facing first and second fastener elements (210, 220) and inhibiting the movement of a slider (400). The restraining surface (560) has a vertical width (W560) that increases in accordance with the upper and lower protruding sections (540, 550).

Description

Slide fastener with fastener

The present disclosure relates to a slide fastener having a stopper.

Patent Document 1 discloses a stopper having a portion inserted into a slider as shown in FIG. 1 of the same document and a portion in contact with a flange portion of the slider.

Patent Document 2 discloses a metal fastener. The upper and lower pieces 1 and 2 are connected by the connecting portion 3 as shown in FIGS. Each of the upper and lower pieces 1 and 2 is provided with a protrusion 7 for stopping the slider. The protrusion 7 can take the shape of FIG. 1 and FIG.

Japanese Utility Model Publication No. 56-37605 Japanese Utility Model Publication No. 47-12330

Resin fasteners are generally of the kind described in Patent Document 1 and have a part that can be inserted into the slider. By partially inserting the resin fastener into the slider, the amount of resin used in the resin fastener can be reduced, and the partial thickness can be made comparable to the thickness of the fastener element. it can. However, when a thinner fastener element is desired, the resin stopper having such a configuration is not necessarily optimal. For example, the fixing force of the resin stopper to the core string of the fastener tape can be reduced. Moreover, the durability strength in the test of laterally pulling the left and right fastener tapes of the fastener chain may be reduced.

In view of these points, it is also considered to make the resin stopper so large that it cannot be inserted into the slider. However, there is generally no permissible thickness difference between a fastener element and a stop provided adjacent thereto. The inventor of the present application has newly found the significance of suppressing the increase in the thickness of the stopper while securing the stopping force of the stopper for stopping the slider.

A slide fastener according to an aspect of the present disclosure includes a first fastener stringer (310) including a first fastener tape (110) and a first fastener element (210);
A second fastener stringer (320) including a second fastener tape (120) and a second fastener element (220);
A slider (400) for opening and closing the first and second fastener stringers (310, 320);
The first fastener tape (110) is fixed to a first core string (115) and a second core string (125) of the second fastener tape (120), and the first fastener tape (110) and the first A slide fastener (600) comprising a resin stopper (500) for connecting two fastener tapes (120),
The fastener (500)
A main body (510) including upper and lower flat plate portions (520, 530) connected between the first and second core strings (115, 125);
Upper and lower raised portions (540, 550) provided on the upper surface (521) of the upper flat plate portion (520) and the lower surface (531) of the lower flat plate portion (530) and raised in opposite directions;
A stop surface (560) disposed opposite to the first and second fastener elements (210, 220) to stop the movement of the slider (400);
The restraining surface (560) has a vertical width (W560) that increases according to the upper and lower raised portions (540, 550).

In some embodiments, the fastener (500) includes a first end (501) on the first and second fastener elements (210, 220) side and a first end (501). Having an opposite second end (502);
The upper raised portion (540) has an upper inclined surface (543) that approaches the upper flat plate portion (520) as it extends toward the second end side,
The lower raised portion (550) includes a lower inclined surface (553) that approaches the lower flat plate portion (530) as it extends toward the second end.

In some embodiments, the upper and lower inclined surfaces (543, 553) extend in a tapered shape approaching each other as they move away from the stop surface (560).

In some embodiments, the upper ridge (540) includes a flat first top surface (544) between the upper inclined surface (543) and the stop surface (560);
The lower raised portion (550) includes a flat second top surface (554) between the lower inclined surface (553) and the restraining surface (560).

In some embodiments, the upper raised portion (540) is provided so as to sandwich the first top surface (544), and the upper flat plate portion according to being spaced apart from the first top surface (544). (520) including first and second inclined surfaces (541, 542), and the first and second inclined surfaces (541, 542) are respectively the first and second core strings (115, 125). ) Extending across the
The lower raised portion (550) is provided so as to sandwich the second top surface (554), and a third approaching the lower flat plate portion (530) as it is separated from the second top surface (554). And the fourth inclined surfaces (551, 552), and the third and fourth inclined surfaces (551, 552) extend in a manner crossing the first and second core cords (115, 125), respectively.

In some embodiments, when the slider (400) contacts the stop surface (560), the first top surface (544) of the upper ridge (540) and the upper wing plate of the slider (400). A step (710) is formed between the upper surface (411) of (410), and the second top surface (554) of the lower raised portion (550) and the lower surface (420) of the lower blade (420) of the slider (400) ( 421) has a step (720).

In some embodiments, the fastener (500) includes a first end (501) on the first and second fastener elements (210, 220) side and a first end (501). Having an opposite second end (502);
When the maximum thickness of the first end (501) of the fastener (500) is TH1, and the maximum thickness of the second end (502) of the fastener (500) is TH2, 1.02 <TH1 / Satisfies TH2 <1.5.

In some embodiments, the stopper (500) is a protrusion (590) provided on the restraining surface (560) in a manner protruding toward the first or second fastener element (210, 220). Is further provided.

In one aspect of the present disclosure, an increase in the thickness of the stopper can be suppressed while securing the stopping force of the stopper for stopping the slider.

It is a schematic perspective view of the slide fastener which concerns on the example of embodiment of this invention, and shows the state just before a slider is restrained by a fastener. It is a schematic perspective view of the slide fastener which concerns on the example of embodiment of this invention, and shows the state by which the slider was restrained by the fastener. It is a front side view of the slider of the slide fastener which concerns on the example of embodiment of this invention, and shows that the fastener element on either side is inserted in the front opening on either side of a slider. It is a schematic perspective view of the slide fastener which concerns on the example of embodiment of this invention, and the slider moves forward and shows the state which the right and left fastener elements meshed. It is a schematic perspective view of the fastener contained in the slide fastener which concerns on the example of embodiment of this invention, and illustration of the right-and-left fastener tape and illustration of the right-and-left fastener element are abbreviate | omitted. It is the schematic of the fastener contained in the slide fastener which concerns on the example of embodiment of this invention, (a) is a top view of a fastener, (b) is a front side view of a fastener, (c) is after a fastener. A side view, (d) is a left side view of the stopper, and (e) is a right side view of the stopper. It is a schematic right view of the slide fastener which concerns on the example of embodiment of this invention. It is a schematic left view of the slide fastener which concerns on the example of embodiment of this invention. It is a schematic front schematic diagram of the slide fastener which concerns on the example of embodiment of this invention, and shows the state which the slider moved forward and the fastener element on either side engaged. FIG. 10 is a schematic cross-sectional schematic view of a slide fastener according to an embodiment of the present invention, schematically showing a schematic cross-section along XX in FIG. 9. FIG. 10 is a schematic cross-sectional schematic view of a slide fastener according to an embodiment of the present invention, schematically showing a schematic cross-section along XI-XI in FIG. 9. It is a schematic front schematic diagram of the slide fastener which concerns on the example of embodiment of this invention, and shows the state just before a slider is restrained by a fastener. It is a schematic front schematic diagram of the slide fastener which concerns on the example of embodiment of this invention, and shows the state by which the slider was restrained by the fastener. It is a schematic back side view of a slide fastener concerning an example of an embodiment of the present invention. It is a schematic right view of the slide fastener which concerns on the example of embodiment of this invention. FIG. 14 is a schematic cross-sectional schematic view of a slide fastener along XVI-XVI in FIG. 13. FIG. 16 is a schematic cross-sectional schematic diagram of a slide fastener taken along XVII-XVII in FIG. 15.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. Each embodiment is not individually independent. Without over-explanation, those skilled in the art can appropriately combine the embodiments. Those skilled in the art can also grasp the synergistic effect of this combination. In principle, duplicate descriptions between the embodiments are omitted. The reference drawings are mainly intended to explain the invention and are simplified as appropriate.

FIG. 1 is a schematic perspective view of a slide fastener, showing a state immediately before the slider is restrained by a stopper. FIG. 2 is a schematic perspective view of the slide fastener, showing a state in which the slider is restrained by a stopper. FIG. 3 is a front side view of the slider of the slide fastener, and shows that the left and right fastener elements are inserted into the left and right front openings of the slider. FIG. 4 is a schematic perspective view of the slide fastener, showing a state in which the slider has moved forward and the left and right fastener elements are engaged. FIG. 5 is a schematic perspective view of a fastener included in the slide fastener, and illustration of the left and right fastener tapes and illustration of the left and right fastener elements are omitted. 6A and 6B are schematic views of a stopper included in the slide fastener, in which FIG. 6A is a top view of the stopper, FIG. 6B is a front side view of the stopper, and FIG. d) is a left side view of the fastener, and (e) is a right side view of the fastener. FIG. 7 is a schematic right side view of the slide fastener. FIG. 8 is a schematic left side view of the slide fastener. FIG. 9 is a schematic front view of the slide fastener, showing a state in which the slider has moved forward and the left and right fastener elements are engaged. FIG. 10 is a schematic cross-sectional schematic view of the slide fastener, schematically showing a schematic cross-section along XX in FIG. FIG. 11 is a schematic cross-sectional schematic view of the slide fastener, schematically showing a schematic cross-section along XI-XI in FIG. FIG. 12 is a schematic front schematic view of the slide fastener, showing a state immediately before the slider is restrained by the stopper. FIG. 13 is a schematic front view of the slide fastener, showing a state in which the slider is restrained by a stopper. FIG. 14 is a schematic rear side view of the slide fastener. FIG. 15 is a schematic right side view of the slide fastener. FIG. 16 is a schematic cross-sectional schematic view of a slide fastener along XVI-XVI in FIG. FIG. 17 is a schematic cross-sectional schematic view of the slide fastener taken along XVII-XVII in FIG.

As shown in FIGS. 1 to 4, the slide fastener 600 includes first and

second fastener stringers

310 and 320, a slider 400 for opening and closing the first and

second fastener stringers

310 and 320, and the slider 400. A stop 500 for stopping is included. The first fastener stringer 310 includes a first fastener tape 110 and a first fastener element 210. More specifically, a plurality of first fastener elements 210 are fixed to the first core string 115 at the side edge of the first fastener tape 110. The second fastener stringer 320 includes a second fastener tape 120 and a second fastener element 220. More specifically, a plurality of second fastener elements 220 are fixed to the second core string 125 at the side edge of the second fastener tape 120.

The first and

second fastener stringers

310, 320 may be referred to as left and right fastener stringers, or simply fastener stringers. The first and

second fastener tapes

110, 120 may be referred to as left and right fastener tapes or simply fastener tapes. The first and

second fastener elements

210, 220 may be referred to as left and right fastener elements, or simply fastener elements. The first and

second core cords

115 and 125 may be referred to as the left and right core cords, or simply the core cord.

The stopper 500 in the illustrated example is a back stop, but can also be used as a front stop. In the present specification, the front-rear direction is understood with reference to the moving direction of the slider 400. As the slider 400 advances, the left and

right fastener stringers

310 and 320 are closed. As the slider 400 moves backward, the left and

right fastener stringers

310 and 320 are opened. The left-right direction is one of the directions orthogonal to the front-rear direction. The left-right direction corresponds to the side-by-side direction of the left and right fastener stringers. The left-right direction is parallel to the tape upper surface and the tape lower surface of each

fastener tape

110, 120. The vertical direction is orthogonal to the front-rear direction and the left-right direction.

The

fastener tapes

110 and 120 are flexible materials including woven fabrics, knitted fabrics, or other structures, and have tape

upper surfaces

111 and 121 and tape

lower surfaces

112 and 122 that define the thickness of the

fastener tapes

110 and 120. The

fastener tapes

110 and 120 have tape

main portions

113 and 123 and side edge portions 114 and 124 on which core strings 115 and 125 are provided. Each of the

core cords

115 and 125 has a portion protruding upward and downward from the tape

upper surfaces

111 and 121 and the tape

lower surfaces

112 and 122 of the tape

main body portions

113 and 123. In some cases, the

core cords

115 and 125 include a plurality of twisted yarns.

Fastener elements

210 and 220 are resin lump elements in the illustrated example. In some cases, the

fastener elements

210 and 220 are integrally formed on the side edges of the

fastener tapes

110 and 120 by resin injection molding. The

fastener elements

210 and 220 have a base portion 230 fixed to the

core cords

115 and 125 and a head portion 240 protruding outward from the fastener tape from the base portion 230, as exemplarily shown in FIG. The outward direction of the fastener tape refers to a direction from a point or position on the upper or lower surface of the

fastener tape

110 or 120 toward a point or position outside the upper or lower surface of the tape. In some cases, the outward direction of the fastener tape traverses the

core cords

115 and 125 from a point or position on the upper or lower surface of the

fastener tape

110 or 120 toward the point or position outside the upper or lower surface of the tape.

When the left and

right fastener elements

210 and 220 mesh with each other, the head 240 of the left fastener element 210 is disposed between the head 240 of the right fastener element 220 adjacent to the front and rear. In some cases, a recess is provided on the top surface of the head 240. The base portion 230 is provided with a convex portion that can be fitted into the concave portion of the top surface of the head portion 240. The

fastener elements

210 and 220 should not be limited to the types shown in the drawings, and metal elements, coil elements, or other types of elements can be used.

In certain cases, the fastener element is thinned to provide sufficient flexibility to the fastener chain with the left and

right fastener stringers

310, 320 closed. As shown in FIG. 9, the left and right widths of the

fastener elements

210 and 220 are L3, and the maximum vertical thickness of the

fastener elements

210 and 220 is TH3 as shown in FIG. In some cases, TH3 / L3 <0.6 is satisfied. In some cases, TH3 / L3 <0.55 is satisfied. The left and right widths of the

fastener elements

210 and 220 may be called the length of the fastener element.

In some cases, (TH3m + TH3n) /TH3≧0.4 is satisfied. In some cases, (TH3m + TH3n) /TH3≧0.45 is satisfied. In addition, as shown in FIG. 11, TH3m shows the thickness between the upper surface of the

fastener elements

210 and 220 and the upper vertex of the core strings 115 and 125. As shown in FIG. 11, TH3n indicates the thickness between the lower surface of the

fastener elements

210 and 220 and the lower apexes of the

core cords

115 and 125. Regarding the structure of the

fastener elements

210, 220, the entire contents of WO 2015/046497 are incorporated herein by reference.

The slider 400 includes an upper wing plate 410, a lower wing plate 420 opposed to the upper wing plate 410, a connecting column 430 that connects the upper wing plate 410 and the lower wing plate 420, and a puller provided on the upper surface of the upper wing plate 410. A mounting post 440 and a handle (not shown) are included. The upper wing plate 410 has an opposed inner surface 412 facing the lower wing plate 420 and an upper surface 411 opposite to the opposed inner surface. The lower wing plate 420 has an opposed inner surface 422 facing the upper wing plate 410 and a lower surface 421 opposite to the opposed inner surface 422. The connecting column 430 is a column portion that extends in the vertical direction at the center of the left and right sides of the slider 400, but also extends in the front-rear direction as illustrated in FIG. 17.

The slider 400 has a pair of front ports at the front end thereof, that is, both right and left sides of the connecting column 430, and one rear port at the rear end thereof. The slider 400 is provided with a Y-shaped element passage that is branched to the left and right by a connecting column 430. The Y-shaped element passage is formed between the upper blade plate 410 and the lower blade plate 420. In the illustrated example, flange portions 460 that protrude downward are provided on the left and right side edge portions of the upper blade plate 410. Similarly, flange portions 460 that protrude upward are provided on the left and right side edge portions of the lower wing plate 420. Therefore, a Y-shaped element passage is defined by these flange portions 460. This element passage will be better understood with reference to FIG. The slider 400 is a resin slider in some cases and a metal slider in other cases.

As the slider 400 moves forward, the left and

right fastener elements

210 and 220 are engaged. The unengaged left and

right fastener elements

210, 220 enter the slider 400 through the front opening of the slider 400 and become engaged with each other as they pass through the connecting column 430. Thereafter, the left and

right fastener elements

210, 220 in meshing state exit from the rear opening of the slider 400.

As the slider 400 moves backward, the left and

right fastener elements

210 and 220 are disengaged. The engaged left and

right fastener elements

210 and 220 enter the slider 400 through the rear opening of the slider 400 and become unengaged as they pass through the connecting column 430. Thereafter, the

non-meshing fastener elements

210 and 220 go out of the slider 400 through the front openings of the slider 400.

The fastener 500 is fixed to the first core string 115 of the first fastener tape 110 and the second core string 125 of the second fastener tape 120 to connect the first fastener tape 110 and the second fastener tape 120. In other words, the stopper 500 is a resin lump fixed to the core strings 115 and 125 of the

fastener tapes

110 and 120, and stops the slider 400 so as to prevent the slider 400 from moving backward. In some cases, the fastener 500 is formed by introducing and solidifying the molten resin into the mold cavity with the opposing side edges of the

fastener tapes

110, 120 disposed within the mold cavity. . In some cases, the fastener 500 is formed in a different process than the fastener element. In some cases, the fastener 500 and the fastener element are formed in the same process.

The stopper 500 includes a main body 510, an upper raised portion 540 provided on the upper surface of the main body 510, and a lower raised portion 550 provided on the lower surface of the main body 510. The main body 510 includes an upper flat plate portion 520 and a lower flat plate portion 530 connected between the first and second core strings 115 and 125. The upper raised portion 540 is provided on the upper surface 521 of the upper flat plate portion 520. The lower raised portion 550 is provided on the lower surface 531 of the lower flat plate portion 530. In the illustrated example, the upper surface 521 and the lower surface 531 are substantially flat surfaces. However, in another example, the upper surface 521 and the lower surface 531 are non-flat surfaces, for example, loosely inclined surfaces.

The stopper 500 has a first end 501 on the first and

second fastener elements

210, 220 side and a second end 502 on the opposite side of the first end 501. The first end 501 may be referred to as a front end, and the second end 502 may be referred to as a rear end. Upper and lower raised

portions

540 and 550 are provided at the first end 501 of the stop 500. The second end 502 of the stop 500 is not provided with upper and lower raised

portions

540 and 550. As shown in FIG. 7, the first end portion 501 of the stopper 500 has a maximum thickness TH1 in the vertical direction, and the second end portion 502 has a maximum thickness TH2 in the vertical direction. The maximum thickness TH1 is larger than the maximum thickness TH2. The maximum thicknesses TH1 and TH2 are both greater than the maximum thickness TH3 in the vertical direction of the

fastener elements

210 and 220. As shown in FIG. 16, the maximum thicknesses TH1 and TH2 are both smaller than the vertical distance W41 between the upper surface 411 of the upper wing plate 410 of the slider 400 and the lower surface 421 of the lower wing plate 420. The maximum thicknesses TH1 and TH2 are both greater than the vertical distance W42 between the opposed inner surface 412 of the upper wing plate 410 of the slider 400 and the opposed inner surface 422 of the lower wing plate 420.

In some cases, 1.02 <TH1 / TH2 <1.5 is satisfied.

As shown in FIG. 5, the stopper 500 includes a first part 500p that sandwiches the first core string 115, a second part 500q that sandwiches the second core string 125, and a space between the first part 500p and the second part 500q. Has an intermediate portion 500r. The first portion 500p may be referred to as the left portion and the second portion 500q may be referred to as the right portion. The first portion 500p is divided vertically by the first fastener tape 110. The second portion 500q is divided vertically by the second fastener tape 120. The intermediate portion 500r connects the first portion 500p and the second portion 500q, and fills the space between the first core string 115 of the first fastener tape 110 and the second core string 125 of the second fastener tape 120. The intermediate portion 500r connects the upper half of the first portion 500p and the upper half of the second portion 500q, and connects the lower half of the first portion 500p and the lower half of the second portion 500q.

As shown in FIG. 5, the first portion 500p holds a first core string holding portion 571 for holding a first core string 115 (not shown) and a tape main body portion of the first fastener tape 110 (not shown). 1st tape holding | maintenance part 581 for this is included. The second portion 500q includes a second core string holding part 572 for holding a second core string 125 (not shown) and a second tape holding part for holding a tape main part of the second fastener tape 120 (not shown). 582.

The upper flat plate portion 520 includes a left side portion 520p disposed on the fastener tape 110, a right side portion 520q disposed on the fastener tape 120, and an intermediate portion 520r connecting these. The lower flat plate portion 530 includes a left portion 530p disposed under the fastener tape 110, a right portion 530q disposed under the fastener tape 120, and an intermediate portion 530r that couples them. The intermediate part 520r of the upper flat plate part 520 and the intermediate part 530r of the lower flat plate part 530 are connected vertically between the first core string 115 and the second core string 125.

Upper and lower raised

portions

540 and 550 raised in opposite directions are provided on the upper surface of the main body portion 510, that is, the upper surface 521 of the upper flat plate portion 520 and the lower surface of the main body portion 510, that is, the lower surface 531 of the lower flat plate portion 530. . The upper and lower raised

portions

540 and 550 are provided at the first end portion 501 of the stopper 500, and are raised upward and downward in the opposite direction at the first end portion 501. The upper raised portion 540 is raised, extends and protrudes upward from the upper surface 521 of the upper flat plate portion 520. The lower raised portion 550 rises, extends, and protrudes downward from the lower surface 531 of the lower flat plate portion 530. As shown in FIG. 7, the upper raised portion 540 and the lower raised portion 550 exist on a common plane PL10 that is orthogonal to the front-rear direction.

The upper raised portion 540 includes a first top surface 544, first and second

inclined surfaces

541 and 542, and an upper inclined surface 543. The lower raised portion 550 has a second top surface 554, third and fourth

inclined surfaces

551, 552, and a lower inclined surface 553. The first top surface 544 is provided between the stop surface 560 and the upper inclined surface 543. The second top surface 554 is provided between the stop surface 560 and the lower inclined surface 553. In the illustrated example, the first and second

top surfaces

544 and 554 are flat surfaces facing opposite directions in the vertical direction. The first and second

inclined surfaces

541 and 542 are provided so as to sandwich the first top surface 544, and approach the upper flat plate portion 520 as they are separated from the first top surface 544 on the opposite side in the left-right direction. The first and second

inclined surfaces

541 and 542 extend in a manner crossing the first and second core strings 115 and 125, respectively. The third and fourth

inclined surfaces

551 and 552 are provided so as to sandwich the second top surface 554, and approach the lower flat plate portion 530 as they are separated from the second top surface 554 on the opposite side in the left-right direction. The third and fourth

inclined surfaces

551 and 552 extend in a manner crossing the first and

second core cords

115 and 125, respectively. The first inclined surface 541 and the third inclined surface 551 extend in a tapered shape approaching each other as they extend leftward. The second inclined surface 542 and the fourth inclined surface 552 extend in a tapered shape that approaches as they extend rightward.

The upper inclined surface 543 gradually approaches the upper surface 521 of the upper flat plate portion 520 as it extends rearward from the first top surface 544. The lower inclined surface 553 gradually approaches the lower surface 531 of the lower flat plate portion 530 as it extends rearward from the second top surface 554. The upper and lower

inclined surfaces

543 and 553 extend in a tapered shape approaching each other as they extend rearward.

As shown in FIG. 6D, the upper inclined surface 543 intersects the upper surface 521 of the upper flat plate portion 520 at the first angle θ1. The first angle θ1 is, for example, 10 ° to 80 °. The lower inclined surface 553 also intersects the lower surface 531 of the lower flat plate portion 530 at the second angle θ2. In the illustrated example, θ1 = θ2. θ1 and θ2 are both acute angles. If the first and second angles θ1 and θ2 are too large, the degree of protrusion of the upper and lower raised

portions

540 and 550 may be conspicuous. Accordingly, in some embodiments, the first and second angles θ1, θ2 are set to 80 ° or less. If the first and second angles θ1, θ2 are too small, it is difficult to ensure sufficient bulging of the upper and lower bulging

portions

540, 550. Accordingly, in some embodiments, the first and second angles θ1, θ2 are set to 10 ° or more.

As shown in FIG. 6B, the angle θ3 formed by the first inclined surface 541 and the first top surface 544 is 130 ° to 150 °. The angle θ4 formed by the second inclined surface 542 and the first top surface 544 is 130 ° to 150 °. Both θ3 and θ4 are obtuse angles. In the illustrated example, the angle formed by the third inclined surface 551 and the second top surface 554 is equal to θ3. In the illustrated example, the angle formed by the fourth inclined surface 552 and the second top surface 554 is equal to θ4.

The upper surface of the stopper 500 includes a first top surface 544, a first inclined surface 541, a second inclined surface 542, an upper inclined surface 543, and an upper surface 521 of the upper flat plate portion 520. The lower surface of the stopper 500 includes a second top surface 554, a third inclined surface 551, a fourth inclined surface 552, a lower inclined surface 553, and a lower surface 531 of the lower flat plate portion 530. The stopper 500 has an outer peripheral side surface connecting the outer periphery of the upper surface and the outer periphery of the lower surface. As shown in FIG. 6A, a stop surface 560 disposed opposite to the first and

second fastener elements

210, 220 and an opposite surface 561 opposite to the stop surface 560 are provided on the outer peripheral side surface of the stopper 500. A left side surface 562 extending between the restraining surface 560 and the opposite surface 561 and a right side surface 563 extending between the restraining surface 560 and the opposite surface 561.

There are rounded edges between the stop surface 560 and the first top surface 544 of the upper ridge 540, between the stop surface 560 and the first inclined surface 541, and between the stop surface 560 and the second inclined surface 542. . There are also rounded edges between the stop surface 560 and the second top surface 554 of the lower raised portion 550, between the stop surface 560 and the third inclined surface 551, and between the stop surface 560 and the fourth inclined surface 552. To do. These rounded edges contribute to making the stop 500 look small.

The restraining surface 560 includes a front surface of the upper flat plate portion 520, a front surface of the lower flat plate portion 530, a front surface of the upper raised portion 540, and a front surface of the lower raised portion 550. The front surface of the upper flat plate portion 520, the front surface of the lower flat plate portion 530, the front surface of the upper raised portion 540, and the front surface of the lower raised portion 550 are opposed to the first and

second fastener elements

210 and 220, respectively. 2 Oriented so as to face the

fastener elements

210 and 220 side.

6D, the plane PL544 on which the first top surface 544 of the upper raised portion 540 exists is positioned above the plane PL521 on which the upper surface 521 of the upper flat plate portion 520 exists. It can be said that the stop surface 560 of the stopper 500 is extended upward in accordance with the upper raised portion 540. Similarly, the plane PL554 where the second top surface 554 of the lower raised portion 550 exists is positioned below the plane PL531 where the lower surface 531 of the lower flat plate portion 530 exists. It can be said that the stop surface 560 of the stopper 500 is extended downward according to the lower raised portion 550. That is, the stop surface 560 has a vertical width W560 that increases in accordance with the upper and lower raised

portions

540, 550. The upper raised portion 540 is not formed over the entire upper surface 521 of the upper flat plate portion 520. Similarly, the lower raised portion 550 is not formed in the entire area of the lower surface 531 of the lower flat plate portion 530.

The increase in the vertical width W560 of the restraining surface 560 contributes to an increase in the fixing force of the stopper 500 to the core strings 115, 125 of the

fastener tapes

110, 120, and the rear end portion and the lower wing of the upper blade plate 410 of the slider 400. A more stable surface contact of the stopper 500 with the rear end portion of the plate 420 can be ensured. In a comparative example, the upper and lower raised

portions

540 and 550 are provided in a manner that does not increase the vertical width W560 of the stop surface 560. For example, the upper and lower raised

portions

540 and 550 are provided at the second end 502 of the stop 500. In this case, the upper and lower

flat plate portions

520 and 530 are in contact with the rear end portion of the upper wing plate 410 and the rear end portion of the lower wing plate 420 of the slider 400. In this case, there is a concern that it is difficult to ensure stable surface contact.

The vertical width W560 of the stop surface 560 matches the vertical distance between the first top surface 544 of the upper raised portion 540 and the second top surface 554 of the lower raised portion 550. The vertical width W561 of the opposite surface 561 on the opposite side of the stop surface 560 matches the vertical distance between the upper surface 521 of the upper flat plate portion 520 and the lower surface 531 of the lower flat plate portion 530. As for the relationship between W560 and W561, the relationship between the above-mentioned TH1 and TH2 is similarly applied.

As shown in FIG. 9, the stopper 500 has a left-right width W500 that matches the total left-right width W200 of the left and

right fastener elements

210, 220 in mesh. Although not necessarily limited to this, in the illustrated example, the stopping force of the stopper 500 for stopping the slider 400 is secured by the sufficient vertical width W560 of the stopping surface 560 of the stopper 500. Note that the total left and right width W200 of the left and

right fastener elements

210 and 220 in the meshed state coincides with the left and right spacing on the side surface of the base 230 facing the inside of the fastener tape that each of the left and

right fastener elements

210 and 220 has. As shown in FIG. 17, the stopper 500 has a left-right width W500 that can enter the slider 400, similarly to the meshing

fastener elements

210 and 220. Actually, the stopper 500 cannot enter the slider 400 because of the restraining surface 560 having a large vertical width W560. The left-right width W500 of the stopper 500 is less than the left-right distance W460 between the opposing inner surfaces of the left and right flange portions 460 at the rear end of the slider 400.

In a specific case, the vertical width W560 of the stop surface 560 is 3.0 mm to 4.8 mm. The maximum thickness TH1 of the first end 501 is 3.0 mm to 4.8 mm. The maximum thickness TH2 of the second end portion 502 is 2.3 mm to 3.7 mm. The lateral width W500 of the stopper 500 is 5.6 mm to 6.2 mm. The left and right width L3 of the fastener element is 3.0 mm to 5.0 mm. The maximum thickness TH3 of the

fastener elements

210 and 220 is 1.8 mm to 2.2 mm. Sufficient flexibility of the fastener chain is also ensured. The stopper 500 is made of a resin such as polyacetal. The

fastener elements

210 and 220 are made of a resin such as reinforced polyacetal. The resin of the stopper 500 exhibits a weaker adhesion to the fastener tape than the resin of the

fastener elements

210 and 220.

The upper raised portion 540 has an upper inclined surface 543 that slowly approaches the upper flat plate portion 520 as it extends toward the second end portion 502 side. The upper inclined surface 543 extends until it reaches the upper surface 521 of the upper flat plate portion 520 provided with the upper raised portion 540. Further, the lower raised portion 550 has a lower inclined surface 553 that slowly approaches the lower flat plate portion 530 as it extends toward the second end portion 502 side. The lower raised portion 550 extends until it reaches the lower surface 531 of the lower flat plate portion 530 provided with the lower raised portion 550. The degree of protrusion of the upper and lower raised

portions

540 and 550 can be relaxed while ensuring a more sufficient vertical width W560 of the stop surface 560.

In another expression, the upper inclined surface 543 of the upper raised portion 540 is a curved surface that gradually moves upward as it extends forward. When gripping the slider 400 by hand, the upper inclined surface 543 of the upper raised portion 540 does not interfere with the movement of the finger of the hand, but rather functions to guide the movement of the hand in some cases. Thereby, the operativity of the slide fastener 600 is improved. When a handle is provided also on the lower wing plate 420 side of the slider 400, the lower inclined surface 553 of the lower raised portion 550 functions similarly.

The first and second

inclined surfaces

541 and 542 of the upper raised portion 540 extend in opposite directions in a manner crossing the core strings 115 and 125. The first inclined surface 541 extends leftward from the first top surface 544 of the upper raised portion 540 so as to cross the first core string 115, and approaches the upper flat plate portion 520 in the process of extending leftward. Similarly, the second inclined surface 542 of the upper raised portion 540 extends rightward from the first top surface 544 of the upper raised portion 540 in a manner crossing the second core string 125, and in the process of extending rightward, the upper flat plate portion 520. To approach. The degree of protrusion of the upper and lower raised

portions

In another expression, the first inclined surface 541 is an inclined surface that gradually moves upward as it extends toward the left and right center side. The second inclined surface 542 is an inclined surface that gradually moves upward as it extends toward the left and right center side. When the handle of the slider 400 is grasped by hand, the first inclined surface 541 and the second inclined surface 542 of the upper protuberance 540 do not disturb the movement of the finger of the hand, but rather guide the movement of the hand in some cases. To work. When a handle is provided also on the lower blade 420 side of the slider 400, the third inclined surface 551 and the fourth inclined surface 552 of the lower raised portion 550 function similarly.

A protrusion 590 that protrudes toward the first fastener element 210 is provided on the stop surface 560 of the stopper 500. The protrusion 590 is fixed to the first core string 115 and has a size that can be inserted into the slider 400. The protrusion 590 has a curved surface 599 for avoiding interference with the second fastener element 220 adjacent to the stopper 500. As shown in FIG. 11, the protruding portion 590 includes an upper portion 592 disposed on the first fastener tape 110 and a lower portion 593 disposed below the first fastener tape 110, and a first core string therebetween. 115 is inserted.

As briefly illustrated in FIG. 16, when the slider 400 contacts the stop surface 560 of the fastener 500, it is between the first top surface 544 of the upper raised portion 540 and the upper surface 411 of the upper blade plate 410 of the slider 400. Causes a step 710. Further, a step 720 is formed between the second top surface 554 of the lower raised portion 550 and the lower surface 421 of the lower wing plate 420. The vertical width W560 of the restraining surface 560 of the stopper 500 is smaller than the vertical distance W41 between the upper surface 411 of the upper wing plate 410 of the slider 400 and the lower surface 421 of the lower wing plate 420. The vertical width W560 of the restraining surface 560 of the stopper 500 is larger than the vertical interval W42 between the opposed inner surface 412 of the upper wing plate 410 of the slider 400 and the opposed inner surface 422 of the lower wing plate 420. The relative smallness of the stopper 500 in relation to the slider 400 is ensured.

In a specific case, it is desired that the fastener chain in which the left and

right fastener stringers

310 and 320 are closed has high flexibility. In this case, it is important to make the

fastener elements

210 and 220 thinner, and similarly to make the fastener 500 thinner. In providing a thinner plastic fastener, a fastener that does not contact the upper wing plate 410 or the lower wing plate 420 of the slider 400 but contacts the flange portion 460 of the slider 400 is considered. However, according to the study of the present inventor, it has become clear that in such a case, a sufficient restraining force of the stopper 500 for restraining the slider 400 cannot be secured.

In view of this point, the inventor of the present application has selected a method that increases the thickness of the stopper 500, which is usually difficult to select. Such a stopper 500 contributes to the deterioration of the flexibility of the fastener chain. However, compared to the fastener element in the first place, the range occupied by the stopper 500 in the fastener chain is extremely small. Therefore, the benefit of increasing the thickness of the fastener 500 greatly exceeds the disadvantage of reducing the flexibility of the fastener chain.

In the present embodiment, the upper raised portion 540 and the lower raised portion 550 are provided in such a manner that the vertical width W560 of the restraining surface 560 of the fastener 500 is increased. The upper raised portion 540 and the lower raised portion 550 rise in opposite directions on the upper surface 521 of the upper flat plate portion 520 and the lower surface 531 of the lower flat plate portion 530. When the thickness of the stopper 500 is increased in such a manner, the stopper 500 can be more firmly fixed to the

core cords

115 and 125, and further, sufficient for the upper blade plate 410 and the lower blade plate 420 of the slider 400. Secure surface contact. An increase in the local thickness of the stopper 500 is achieved by the upper bulge portion 540 and the lower bulge portion 550, and this increase in the local thickness results in an increase in the vertical width W560 of the stop surface 560.

In a non-limiting exemplary form, the upper raised portion 540 is provided with an upper inclined surface 543, and the lower raised portion 550 is provided with a lower inclined surface 553. In addition to the above-described benefits, the increase in the thickness of the fastener 500 is suppressed. In addition to the above-mentioned benefits, the first and second inclined surfaces of the upper raised portion 540 and the first and second inclined surfaces of the lower raised portion 550 also suppress the increase in the thickness of the fastener 500 from being noticeable. Contribute.

Based on the above teaching, those skilled in the art can make various modifications to the embodiments. Reference signs included in the claims are for reference only and should not be referenced for the purpose of limiting the scope of the claims.

110 First fastener tape 120 Second fastener tape 210 First fastener element 220 Second fastener element 310 First fastener stringer 320 Second fastener stringer 400 Slider 500 Stopper 510 Body portion 520 Upper flat plate portion 530 Lower flat plate portion 540 Upper raised portion 550 Lower raised portion 560 Stop surface 600 Slide fastener

Claims

A first fastener stringer (310) including a first fastener tape (110) and a first fastener element (210);
A second fastener stringer (320) including a second fastener tape (120) and a second fastener element (220);
A slider (400) for opening and closing the first and second fastener stringers (310, 320);
The first fastener tape (110) is fixed to a first core string (115) and a second core string (125) of the second fastener tape (120), and the first fastener tape (110) and the first A slide fastener (600) comprising a resin stopper (500) for connecting two fastener tapes (120),
The fastener (500)
A main body (510) including upper and lower flat plate portions (520, 530) connected between the first and second core strings (115, 125);
Upper and lower raised portions (540, 550) provided on the upper surface (521) of the upper flat plate portion (520) and the lower surface (531) of the lower flat plate portion (530) and raised in opposite directions;
A stop surface (560) disposed opposite to the first and second fastener elements (210, 220) to stop the movement of the slider (400);
The said stop surface (560) is a slide fastener which has the up-and-down width (W560) increased according to the said upper and lower bulge part (540,550).
The fastener (500) includes a first end (501) on the first and second fastener elements (210, 220) side and a second end (on the opposite side to the first end (501)). 502),
The upper raised portion (540) has an upper inclined surface (543) that approaches the upper flat plate portion (520) as it extends toward the second end side,
The slide fastener according to claim 1, wherein the lower raised portion (550) includes a lower inclined surface (553) that approaches the lower flat plate portion (530) as it extends toward the second end portion.
3. The slide fastener according to claim 2, wherein the upper and lower inclined surfaces (543, 553) extend in a tapered shape approaching each other as they are separated from the stop surface (560).
The upper raised portion (540) includes a flat first top surface (544) between the upper inclined surface (543) and the restraining surface (560),
The slide fastener according to claim 2 or 3, wherein the lower raised portion (550) includes a flat second top surface (554) between the lower inclined surface (553) and the restraining surface (560).
The upper raised portion (540) is provided so as to sandwich the first top surface (544), and approaches the upper flat plate portion (520) as it is separated from the first top surface (544). And second inclined surfaces (541, 542), the first and second inclined surfaces (541, 542) each extending in a manner across the first and second core cords (115, 125),
The lower raised portion (550) is provided so as to sandwich the second top surface (554), and a third approaching the lower flat plate portion (530) as it is separated from the second top surface (554). And fourth inclined surfaces (551, 552), the third and fourth inclined surfaces (551, 552) extending in a manner across the first and second core cords (115, 125), respectively. Item 5. A slide fastener according to item 4.
When the slider (400) contacts the restraining surface (560), the first top surface (544) of the upper raised portion (540) and the upper surface (411) of the upper blade (410) of the slider (400). There is a step (710) between the second top surface (554) of the lower raised portion (550) and the lower surface (421) of the lower blade (420) of the slider (400). The slide fastener according to claim 4 or 5, wherein 720) occurs.
The fastener (500) includes a first end (501) on the first and second fastener elements (210, 220) side and a second end (on the opposite side to the first end (501)). 502)
When the maximum thickness of the first end (501) of the fastener (500) is TH1, and the maximum thickness of the second end (502) of the fastener (500) is TH2, 1.02 <TH1 / The slide fastener according to any one of claims 1 to 6, wherein TH2 <1.5 is satisfied.
The said stopper (500) is further equipped with the projection part (590) provided in the said restraining surface (560) in the aspect which protrudes in the said 1st or 2nd fastener element (210,220) side. The slide fastener according to any one of 7.