CN218942437U - zipper - Google Patents

Abstract

The zipper (1) of the present utility model comprises a pair of first zipper tapes (10) and second zipper tapes (20), a first chain element row (50) and a second chain element row (60). When the first element row (50) and the second element row (60) are engaged with each other, one end (10a) in the width direction of the first fastener tape (10) and one end in the width direction of the second fastener tape (20) The parts (20a) are respectively buckled into an arc shape and are in close contact with each other. Therefore, the clearance gap (middle part partition part) of a 1st fastener tape and a 2nd fastener tape disappears, the concealability of an element line is excellent, and also an external appearance is excellent.

Description

zipper

technical field

The utility model relates to a slide fastener.

Background technique

As the type of zipper, generally known are: the usual type of zipper attached so that the element row can be seen on the outside (front side) of the product, and the element row attached to the inside (back side) of the product On the other hand, in the reverse type slide fastener (so-called reverse slide fastener) that is difficult to see, the side edges of the left and right fastener tapes are folded back in a U-shape in the width direction, and the element row is attached to the folded tape portion. Hidden type zippers (so-called hidden zippers), etc.

Due to its concealment, the reverse zipper has the advantage of not hindering the design of the product. It is suitable for various clothes or shoes, bags, furniture and other products. In addition, in recent years, it is also used in various seats such as cars, trains, and airplanes. Seat covers for chairs, etc. An example of such a reverse fastener is disclosed in Unexamined-Japanese-Patent No. 2009-56076 (patent document 1).

FIG. 8 is a cross-sectional view showing the reverse fastener of Patent Document 1. FIG. As shown in FIG. 8 , the reverse fastener 100 disclosed in Patent Document 1 has a pair of left and right fastener stringers 102 and 102 and a slider 101 that can open and close the pair of left and right fastener stringers 102 and 102 .

The slider 101 has a slider body 110 and a pull piece 120 . The slider body 110 has an upper blade 111, a lower blade 112 arranged parallel to the upper blade 111, and a guide column (not shown in FIG. ), the door-shaped handle mounting column 114 integrally formed with the surface (upper surface) of the upper wing plate 111, and the left and right sides erected from the left and right sides of the rear side of the lower wing plate 112 toward the upper wing plate 111 The flange 115.

The left and right pair of fastener stringers 102, 102 are formed by inserting the core thread 106 through the coiled element row 103 with the sewing thread 105 and are sewn to the opposite tape sides of the left and right pair of fastener tapes 104, 104. formed by the edge.

[Prior art literature]

[Patent Document]

Patent Document 1: Japanese Patent Laid-Open No. 2009-56076

Utility model content

[Problems to be solved by the utility model]

Usually, in the reverse fastener, a gap (so-called middle partition) is formed between a pair of fastener tapes on the left and right. Actually, even in the reverse fastener 100 of Patent Document 1 shown in FIG. 8 , a gap S is formed between the pair of left and right fastener tapes 104 , 104 .

Therefore, when an external force (so-called horizontal pull) in a direction away from each other acts on the pair of left and right fastener tapes 104, 104, when the user looks at the reverse fastener 100 from the surface side (upper side in FIG. 8 ), The element row 103 is visually recognized through the gap S. FIG. Such reduction of the concealment of the element row 103 is not preferable in terms of deteriorating the design of articles using the reverse slide fastener 100 , especially articles that emphasize aesthetics, such as car seats, bags, and furniture.

This invention is made|formed in view of the above-mentioned problem, and it aims at providing the slide fastener excellent in the concealability of an element row, and also excellent in appearance.

[Technical means to solve the problem]

In order to solve the said subject, this invention is achieved by the following structure.

[1] A zipper comprising:

A pair of first zipper tapes and second zipper tapes are elongated and each have a first main surface and a second main surface on the opposite side of the first main surface;

a first element row provided on the first main surface at one end in the width direction of the first fastener tape; and

The second element row is provided on the first main surface at one end in the width direction of the second fastener tape, and in the slide fastener,

When the first element row and the second element row are engaged with each other, one end in the width direction of the first fastener tape and one end in the width direction of the second fastener tape are each bent into an arc. Shaped and closely connected to each other.

[2] The slide fastener according to [1], wherein,

When the first element row and the second element row are meshed with each other, the second main surface at one end in the width direction of the first fastener tape and the one end in the width direction of the second fastener tape The second main surfaces of the parts are in close contact with each other.

[3] The slide fastener according to [1] or [2], wherein,

Between the first main surface at one end in the width direction of the first fastener tape and the first element row when the first element row and the second element row are meshed with each other Divide to form the first space,

A second space is defined between the first main surface at one end in the width direction of the second fastener tape and the second element row.

[4] The slide fastener according to [1] or [2], wherein,

The first zipper tape and the second zipper tape are fabrics or braids.

[5] The slide fastener according to [1] or [2], wherein,

One end in the width direction of the first fastener tape extends toward the second fastener tape side from the meshing center of the first element row and the second element row, and the width of the second fastener tape One end portion of the direction extends toward the first fastener tape side than the meshing center, so that when the first fastener element row and the second fastener element row are engaged with each other, the width of the first fastener tape The one end in the direction and the one end in the width direction of the second fastener tape are bent into an arc shape to be in close contact with each other.

[6] The slide fastener according to [5], wherein,

One end surface in the width direction of the first fastener tape is arranged on the same plane as the one end surface in the width direction of the first element row, and the one end surface in the width direction of the second fastener tape is arranged on the same plane as the one end surface in the width direction of the second element row. One end face in the width direction of the fastener tape is arranged on the same plane, so that when the first fastener element row and the second fastener element row are engaged with each other, the width direction one end of the first fastener tape is aligned with the second fastener element row. One end portion in the width direction of the fastener tape is bent into an arc shape and is in close contact with each other.

[7] The zipper according to [1] or [2], comprising:

a first waterproof layer disposed on the second main surface of the first fastener tape; and

The second waterproof layer is arranged on the second main surface of the second zipper tape.

[8] The slide fastener according to [7], wherein,

When the first element row and the second element row are engaged with each other, one end in the width direction of the first water stop layer and one end in the width direction of the second water stop layer are buckled into an arc. Linear and close to each other.

[9] The slide fastener according to [8], wherein,

The first water-stop layer and the second water-stop layer respectively include: a first water-stop main surface connected to the second main surface of the first zipper tape and the second zipper tape; and a second water-stop major surface that is on the opposite side of said first water-stop major surface,

When the first element row and the second element row are engaged with each other, the second water-stop main surface at one end in the width direction of the first water-stop layer and the second water-stop layer The second water-stop main surfaces at one end portion in the width direction of each are in close contact with each other.

[effect of utility model]

According to the slide fastener of the present invention, when the first element row and the second element row are meshed with each other, one end in the width direction of the first fastener tape and one end in the width direction of the second fastener tape are respectively bent into an arc shape. And close to each other. Therefore, the clearance gap (middle part partition part) of a 1st fastener tape and a 2nd fastener tape disappears, the concealability of an element line is excellent, and also an external appearance is excellent.

Description of drawings

Fig. 1 is a surface view of the first embodiment of the slide fastener of the present invention.

Fig. 2 is a sectional view of main parts of the slide fastener shown in Fig. 1 , and is a view showing a state in which a first element row and a second element row are meshed.

Fig. 3 is a main part cross-sectional view of the slide fastener shown in Fig. 1 , and is a view showing a state where the first element row and the second element row are separated.

Fig. 4 is a sectional view of main parts of the slide fastener according to a modified example of the first embodiment, and is a diagram showing a state in which a first element row and a second element row are meshed.

5 is a cross-sectional view of main parts of the slide fastener according to the second embodiment, and is a diagram showing a state in which the first element row and the second element row are meshed.

6 is a main part sectional view of the slide fastener according to the second embodiment, and is a diagram showing a state where the first element row and the second element row are separated.

7 is a cross-sectional view of main parts of a slide fastener according to a modified example of the second embodiment, and is a diagram illustrating a state in which a first element row and a second element row are meshed.

FIG. 8 is a cross-sectional view showing the reverse fastener of Patent Document 1. FIG.

[explanation of the symbol]

1: Zipper

3, 5: zipper tooth chain belt

10: First Zipper Tape

10a: One end in the width direction

10b: One end face in the width direction

11: Back (first main surface)

13: surface (second main surface)

20: Second zipper strap

20a: One end in the width direction

20b: One end face in the width direction

21: Back (first main surface)

23: surface (second major surface)

31: chain tooth

31a: Engaging head

31b: First foot

31c: Second leg

31d: connecting part

31e: One end face in the width direction

31f: One end face in the width direction

32: core wire

33: Suture

40: slider

41: subject

42: Pull tab installation part

43: pull piece

50: the first chain tooth row

60: Second chain tooth row

70: The first water-stop film (the first water-stop layer)

70a: One end in the width direction

70b: One end face in the width direction

71: Back (the main surface of the first water stop)

73: surface (the main surface of the second water stop)

80: Second water-stop film (second water-stop layer)

80a: One end in the width direction

80b: One end face in the width direction

81: Back (the main surface of the first water stop)

83: surface (the main surface of the second water stop)

100: reverse zipper

101: slider

102: Zipper tooth chain belt

103: Chain tooth row

104: Zipper belt

105: seam line

106: core wire

110: slider main body

111: Upper wing

112: Lower wing

114: Pull tab installation column

115: Flange

120: pull piece

O: center of engagement

O1, O2: position

S: Gap

S1, S2: plane

T1: First Space

T2: Second Space

Detailed ways

Hereinafter, slide fasteners of each embodiment of the present invention will be described in detail based on the drawings.

In addition, in this specification, with regard to a slide fastener, the "up and down direction" refers to the sliding direction of the slider, and refers to the longitudinal direction of the slide fastener. The direction is set to "upper", and the direction in which the slider slides so as to separate the left and right element rows is set to "downward".

In addition, about a slide fastener, a "left-right direction" is the direction in which a pair of element rows are arranged, and it is the direction orthogonal to the sliding direction of a slider, and it can also be called the width direction of a slide fastener in other words.

Furthermore, about a slide fastener and a top stop, a "front-back direction" is a direction orthogonal to an up-down direction and a left-right direction, In other words, it is the thickness direction of a fastener tape, or the height direction of an element row.

(first embodiment)

Fig. 1 is a surface view of the first embodiment of the slide fastener of the present invention. Fig. 2 is a sectional view of main parts of the slide fastener shown in Fig. 1 , and is a view showing a state in which a first element row and a second element row are meshed. Fig. 3 is a main part cross-sectional view of the slide fastener shown in Fig. 1 , and is a view showing a state where the first element row and the second element row are separated.

As shown in FIGS. 1 to 3 , the slide fastener 1 of the present embodiment includes a pair of left and right fastener stringers 3 and 5 and a slider 40 that can open and close the pair of left and right fastener stringers 3 and 5 .

Left and right pair of zipper tooth chain belt 3,5 comprises: left and right pair of first zipper belt 10 and second zipper belt 20, be elongated and have back side 11, back side 21 (first main surface) and back side 11, back side respectively The surface 13 on the opposite side of 21, the surface 23 (second main surface); the first element row 50, which is arranged on the back surface 11 of one end 10a (right end in FIG. 2 ) of the first fastener tape 10 in the width direction; and the second The second element row 60 is provided on the back surface 21 of the widthwise one end portion 20a (left end portion in FIG. 2 ) of the second fastener tape 20 . Hereinafter, in the width direction of the first fastener tape 10 and the second fastener tape 20, the side where the element row is provided is defined as one end side in the width direction, and the side where the element row is not provided is defined as the other end side in the width direction. .

The first fastener tape 10 and the second fastener tape 20 are woven or knitted fabrics made of polyester threads or the like, and are excellent in flexibility. In addition, the 1st fastener tape 10 and the 2nd fastener tape 20 may be nonwoven fabrics.

The slider 40 engages and separates the pair of left and right first element rows 50 and the second element row 60 . The slider 40 includes a main body 41 , a handle attaching portion 42 provided on the surface of the main body 41 , and a handle 43 attached to the handle attaching portion 42 . And by moving the slider 40 upward, as shown in FIG. 2 , the pair of left and right first element rows 50 mesh with the second element row 60 , and by moving the slider 40 downward, as shown in FIG. 3 , The pair of left and right first element rows 50 is separated from the second element row 60 . In addition, the slide fastener 1 may include an unillustrated top stop or bottom stop. In addition, instead of the bottom stop, an opener having a seat bar and a seat body may be provided.

The first element row 50 and the second element row 60 are coil-shaped fastener element rows formed by winding a synthetic resin monofilament in a certain direction, and have a plurality of elements 31 . And, about the first fastener element row 50 and the second fastener element row 60, the core thread 32 is inserted through the inside of the plurality of fastener elements 31, and is sewn to the first fastener tape 10 with the sewing thread 33 through the double-thread lockstitch. The back surface 11 of the width direction one end part 10a and the back surface 21 of the width direction one end part 20a of the 2nd fastener tape 20. Moreover, polyester, nylon, etc. are mentioned as a synthetic resin material of a monofilament.

The fastener element 31 includes: an engaging head 31a that engages with and separates from the opposite fastener element 31; contact with the second fastener tape 20; the second leg portion 31c extends from the back side end of the engaging head 31a to the other end side in the width direction and does not contact the first fastener tape 10 and the second fastener tape 20; and the connecting portion 31d connects the width direction outer end part of the 1st leg part 31b, and the width direction other end part of the 2nd leg part 31c of the adjacent element 31. Therefore, the first leg portion 31b and the second leg portion 31c are formed to protrude from the engagement head portion 31a and extend in parallel.

In FIG. 2, the meshing center O of the 1st element line 50 and the 2nd element line 60 is shown. The meshing center O is the center position of the fastener elements 31 when the fastener elements 31 mesh with each other, and coincides with the widthwise center of the slide fastener 1 . In FIG. 3, the position which becomes the meshing center O when meshing the 1st element line 50 and the 2nd element line 60 is shown by O1 and O2. The position O1 and the position O2 are located on the other end side in the width direction from the meshing head portion 31 a of the element 31 .

As shown in FIG. 3 , in a state where the first fastener element row 50 is separated from the second fastener element row 60 , the widthwise one end 10 a of the first fastener tape 10 and the widthwise one end 20 a of the second fastener tape 20 are separated by a width. direction apart from each other.

Moreover, in the upper part of FIG. It is shown as a buckled arc shape, which means that when the first element row 50 and the second element row 60 are separated after a certain period of time while they are engaged, the buckled state remains. Mark of. When a certain period of time passes in the state where the first element row 50 is separated from the second element row 60 , the trace of buckling is eliminated, and the width direction one end 10 a of the first fastener tape 10 is connected to the second fastener tape 20 . The width direction one end part 20a may each have a substantially planar shape as shown in FIG. 3 .

As shown in FIG. 3 , in a state where the first element row 50 is separated from the second element row 60 , the widthwise one end 10 a of the first fastener tape 10 has a ratio of the first element row 50 to the second element row. The position O1 of the meshing center O of 60 extends further toward the second fastener tape 20 side (one end side in the width direction), and the one end portion 20 a in the width direction of the second fastener tape 20 is further toward the first fastener tape than the position O2 that becomes the meshing center O. The 10 side (one end side in the width direction) extends. That is, it is designed so that the 1st fastener tape 10 and the 2nd fastener tape 20 may overlap with the meshing center O when meshing the 1st element line 50 and the 2nd element line 60 as shown in FIG. By arranging the first fastener tape 10 and the second fastener tape 20 and the first fastener element row 50 and the second fastener element row 60 as described above, the first fastener element row 50 and the second fastener element row are arranged as described later. When 60 is engaged, the first zipper tape 10 and the second zipper tape 20 can be bent into an arc shape and tightly connected to each other.

More specifically, in a state where the first element row 50 is separated from the second element row 60 , the one end surface 10 b in the width direction of the first fastener tape 10 is arranged closer to the second slide fastener than the position O1 serving as the meshing center O. On the side of the tape 20 (one end in the width direction), the one end surface 20b in the width direction of the second fastener tape 20 is arranged on the side of the first fastener tape 10 (one end in the width direction) than the position O2 serving as the meshing center O.

The one end surface 10b in the width direction of the first fastener tape 10 may be disposed at a position overlapping at least a part of the engaging head portion 31a of the element 31 in the width direction, or may be arranged on the one end surface in the width direction of the engaging head portion 31a in the width direction. 31e (namely, the width direction one end surface of the 1st element row 50) is arrange|positioned on the same plane S1, and may be arrange|positioned at the 2nd fastener tape 20 side rather than the engaging head part 31a. In the example of FIG. 2, the width direction one end surface 10b of the 1st fastener tape 10 is arrange|positioned on the same plane S1 as the width direction one end surface of the 1st element row 50 in the width direction.

The one end surface 20b in the width direction of the second fastener tape 20 may be arranged at a position overlapping at least a part of the engaging head 31a of the element 31 in the width direction, or may be arranged on the one end surface 20b in the width direction of the engaging head 31a in the width direction. 31f (namely, the width direction one end surface of the 2nd element line 60) is arrange|positioned on the same plane S2, and may be arrange|positioned at the 1st fastener tape 10 side rather than the engaging head part 31a. In the example of FIG. 2, the width direction one end surface 20b of the 2nd fastener tape 20 is arrange|positioned on the same plane S2 as the width direction one end surface of the 2nd element row 60 in the width direction.

In this way, in the state where the first element row 50 is separated from the second element row 60, the widthwise one end surface 10b of the first fastener tape 10 and the widthwise one end surface of the first element row 50 are arranged on the same plane S1. Above, the width direction one end surface 20b of the second fastener tape 20 and the width direction one end surface of the second fastener element row 60 are arranged on the same plane S2, thereby making the first fastener element row 50 and the second fastener element row 50 as described later. When the fastener element rows 60 are meshed, the first fastener tape 10 and the second fastener tape 20 can be more reliably bent into an arc shape to be in close contact with each other. The reason for this is that the first fastener tape 10 and the second fastener tape 20 have an arrangement relationship in which the widthwise one end 10 a and the widthwise one end 20 a do not interfere with the meshing of the first element row 50 and the second fastener element row 60 , Moreover, the crimping between the first fastener tape 10 and the second fastener tape 20 is not easily broken. In addition, the so-called "arranged on the same plane" does not necessarily need to be completely arranged on the same plane. Considering the taper of the engaging head 31a, it also includes one end surface 10b in the width direction of the first fastener tape 10 and the second fastener tape 20. The one-direction end surface 20b is substantially on the same plane as the range from the start point of the taper to the end point of the taper of the engaging head portion 31a.

By moving the slider 40 upward from the state where the first element row 50 and the second element row 60 are separated as shown in FIG. 3 , as shown in FIG. 2 , the first element row 50 and the second element row Column 60 meshes. At this time, the width direction one end portion 10a of the first fastener tape 10 is closer to the second fastener tape 20 side (the width direction one end side) than the position O1 serving as the meshing center O between the first element row 50 and the second element row 60 and the widthwise one end 20a of the second fastener tape 20 extends toward the first fastener tape 10 side (the widthwise one end side) from the position O2 that becomes the meshing center O, so that the widthwise one end 10a and the widthwise one end 20a They are deformed by being pressed against each other in the width direction, and are bent into an arc shape protruding toward the surface side to be in close contact with each other. In addition, at this time, as shown in FIG. The stitching thread 33 of the 1st fastener tape 10 and the 2nd fastener tape 20 are buckled and slightly stretched and floated sometimes.

In this way, when the first fastener element row 50 and the second fastener element row 60 are engaged with each other, the first fastener tape 10 and the second fastener tape 20 are in close contact with each other, so that the first fastener tape 10 and the second fastener tape 20 are not in contact with each other like the existing reverse slide fastener. A gap (so-called middle partition) is formed between the tape 10 and the second fastener tape 20 . Therefore, when the user looks at the slide fastener 1 from the front side, the first element row 50 and the second element row 60 cannot be visually recognized, and the appearance is excellent. This type of zipper 1 is especially suitable for car seats, bags, furniture and other items that emphasize aesthetics.

In addition, since the first fastener tape 10 and the second fastener tape 20 are bent into an arc shape and are in close contact with each other, even if a force (so-called horizontal pull) in a direction away from each other acts on the first fastener tape 10 and the second fastener tape, In the case of the fastener tape 20, within the range where the meshing gap between the fastener elements 31 and the fastener elements 31 is offset, the mutual closeness can be maintained only by slightly weakening the degree of buckling, so that the good appearance of the slide fastener 1 can be maintained. .

In addition, a waterproof agent may be adhered to the first fastener tape 10 and the second fastener tape 20 . By attaching a water repellent, water repellency can be imparted to the slide fastener 1 . As the waterproofing agent, for example, fluorine-based compounds, silicone-based compounds, acrylic-based waterproofing agents, silicone composite-based waterproofing agents, paraffin-based compounds, ethylene urea-based compounds, zirconium-based compounds, fatty acid amide-based compounds, methylol Water repellents such as base amide compounds, alkyl urea type, fatty acid amide type, etc.

The step of attaching the waterproofing agent to the first fastener tape 10 and the second fastener tape 20 can be any step, for example, the fastener stringer 3, Zipper tooth chain belt 5 makes it pass through continuously in the container that has been filled with waterproofing agent, and impregnates waterproofing agent. In the process, the first fastener tape 10 and the second fastener tape 20 constituting the fastener stringer 3 and the fastener stringer 5 , the first element row 50 and the second element row 60 , the core thread 32 , The entire surface of the sewing thread 33 is efficiently provided with a waterproofing agent. Next, lift the fastener stringer 3 and the fastener stringer 5 from the container, and make it pass through the drying chamber continuously, thereby firstly drying the water repellent applied to the entire surface of the fastener stringer 3 and the fastener stringer 5 . Then, the fastener stringer 3 and the fastener stringer 5 after drying of a waterproofing agent are made to pass through a heat processing chamber further continuously, and the waterproofing agent after drying is heat-processed. In the heat treatment, all base materials of the first fastener tape 10 and the second fastener tape 20, the first element row 50 and the second element row 60, the core thread 32, and the stitching thread 33 are carried out between the waterproofing agent Welding and attachment treatment.

In this way, when water-repellent treatment is given to the 1st fastener tape 10 and the 2nd fastener tape 20, the slide fastener 1 can be used as a waterproof slide fastener. In particular, in this embodiment, when the first fastener element row 50 and the second fastener element row 60 are meshed with each other, the first fastener tape 10 and the second fastener tape 20 are bent into an arc shape and are in close contact with each other. A gap (middle partition) is not formed between the first fastener tape 10 and the second fastener tape 20 , and liquid entry from the middle partition as in the conventional art can be suppressed.

In addition, as shown in FIG. 2 , when the first element row 50 and the second element row 60 are engaged with each other, the widthwise one end surface 10 b and the widthwise one end surface 20 b of the first fastener tape 10 and the second fastener tape 20 It faces the fastener element 31 side (back side), and abuts on the first fastener element row 50 and the second fastener element row 60 . Moreover, the surface 13 of the width direction one end part 10a of the 1st fastener tape 10, and the surface 23 of the width direction one end part 20a of the 2nd fastener tape 20 are in close contact with each other at the meshing center O. In this way, the first fastener tape 10 and the second fastener tape 20 have the widthwise one end 10a and the widthwise one end 20a's surfaces 13 and 23 in close contact with each other. The thickness of the slide fastener 1 can be suppressed and the sliding resistance of the slider 40 can be reduced compared to the case where the one end portion 10a and the widthwise one end portion 20a are buckled in the opposite direction to the present embodiment). In addition, assuming that when the back surface 11 and the back surface 21 are brought into close contact with each other, the width direction one end surface 10b and the width direction one end surface 20b of the first fastener tape 10 and the second fastener tape 20 face the front side, and the width direction one end of the tape edge Since the portion 10a and the widthwise one end portion 20a are convex toward the surface, the texture of the surface is deteriorated.

In addition, as shown in FIG. 2 , when the first element row 50 and the second element row 60 are engaged with each other, the widthwise one end surface 10 b and the widthwise one end surface 20 b of the first fastener tape 10 and the second fastener tape 20 The back surface 11 and the back surface 21 of the front surface are separated from the first fastener element row 50 and the second fastener element row 60 (the fastener element 31 ) in the front-back direction, and the first space T1 and the second space T2 are respectively formed between the two.

By providing the first space T1 and the second space T2 as described above, when the first fastener element row 50 and the second fastener element row 60 are combined by the slider 40, the first fastener tape 10 and the second fastener element row can be easily connected to each other. Zipper straps 20 buckles. In addition, the larger the first space T1 and the second space T2 are, the larger the pressure contact area between the surfaces 13 and 23 of the widthwise one end 10a and the widthwise one end 20a of the first fastener tape 10 and the second fastener tape 20 is. , the more the generation of the gap (middle partition) between the first fastener tape 10 and the second fastener tape 20 can be suppressed, and the improvement of the appearance, waterproofness, and water resistance can be contributed to. Furthermore, since the crimping of the 1st fastener tape 10 and the 2nd fastener tape 20 is hard to break, it becomes easy to maintain a shape.

In addition, as mentioned above, since the first fastener tape 10 and the second fastener tape 20 are woven or braided and have excellent flexibility, when the first fastener element row 50 and the second fastener element row 60 are engaged with each other, the Adhesion between the first fastener tape 10 and the second fastener tape 20 . Moreover, the buckled state of the 1st fastener tape 10 and the 2nd fastener tape 20 can be maintained. Therefore, generation|occurrence|production of the gap (middle part part) between the 1st fastener tape 10 and the 2nd fastener tape 20 can be suppressed, and can contribute to the improvement of an external appearance, waterproofness, and water resistance. Moreover, when the 1st fastener tape 10 and the 2nd fastener tape 20 are molded from resin etc., it is difficult to form and maintain a buckled shape.

Fig. 4 is a sectional view of main parts of the slide fastener according to a modified example of the first embodiment, and is a diagram showing a state in which a first element row and a second element row are meshed. In the example of FIG. 3 , compared with the example of FIG. 2 , the degree of buckling of the first fastener tape 10 at one end 10 a in the width direction and the second fastener tape 20 at one end 20 a in the width direction increases, and the first fastener tape 10 The pressure contact area of the surface 13 of the width direction one end part 10a and the surface 23 of the width direction one end part 20a of the 2nd fastener tape 20 increases. In this way, by appropriately adjusting the pressure-bonded area, it is possible to meet the requirements for waterproofness and water resistance.

(second embodiment)

5 is a cross-sectional view of main parts of the slide fastener according to the second embodiment, and is a diagram showing a state in which the first element row and the second element row are meshed. 6 is a main part sectional view of the slide fastener according to the second embodiment, and is a diagram showing a state where the first element row and the second element row are separated. The slide fastener 1 of the second embodiment is different from the first embodiment in that a first waterproof film 70 and a second waterproof film 80 are provided on the first fastener tape 10 and the second fastener tape 20 . Since other configurations of the second embodiment are the same as those of the first embodiment, description thereof will be omitted or simplified by assigning the same symbols as those of the first embodiment in the drawings.

As shown in Fig. 5 and Fig. 6, the slide fastener 1 of the second embodiment also includes: a first water-stop film 70 (first water-stop layer), which is arranged on the surface 13 of the first zipper tape 10; and a second water-stop film 80 (the second waterproof layer), which is arranged on the surface 23 of the second zipper tape 20 . Therefore, the slide fastener 1 of this embodiment is a water-stop slide fastener having water-stop properties.

A pair of left and right first water-stop film 70 and second water-stop film 80 are the same elongated shape as the first zipper tape 10 and the second zipper tape 20 respectively, and have a back side 71 and a back side 81 (the first water-stop main surface ), and the surface 73 and surface 83 on the opposite side of the back surface 71 and the back surface 81 (the second water-stop main surface). The first waterproof film 70 and the second waterproof film 80 are formed so as to cover the entire surfaces 13 and 23 of the first fastener tape 10 and the second fastener tape 20 . In this embodiment, the first waterproof film 70 and the second waterproof film 80 are substantially the same as the first fastener tape 10 and the second fastener tape 20 in terms of vertical dimensions and width.

The first water-stop film 70 and the second water-stop film 80 are formed by sewing together a water-stop layer such as a thermosetting polyurethane film and the first fastener element row 50 and the second fastener element by bonding or welding. The surface 13 and the surface 23 of the 1st fastener tape 10 and the 2nd fastener tape 20 of the row 60 are bonded and integrally formed. Here, the slide fastener 1 is in a state in which the common waterproof layer (the first waterproof film 70 and the second waterproof film 80 ) is integrally joined to the first fastener tape 10 and the second fastener tape 20 .

Thereafter, a waterproofing agent is adhered to the slide fastener 1 by the same method as that described in the first embodiment. For example, the fastener stringer 3 and the fastener stringer 5 may be guided by winding along the peripheral surface of a guide roller not shown, and continuously passed through a container filled with a waterproof agent to impregnate the waterproof agent. In the process, the first fastener tape 10 and the second fastener tape 20 constituting the fastener stringer 3 and the fastener stringer 5 , the first element row 50 and the second element row 60 , the core thread 32 , The seams 33 and the entire surface of the water-stop layer (the first water-stop film 70 and the second water-stop film 80 ) efficiently impart waterproofness. Then, lift the fastener stringer 3 and the fastener stringer 5 from the container, and make it pass through the drying chamber continuously, so that the water repellent applied to the entire surface of the fastener stringer 3 and the fastener stringer 5 is dried at first. . Then, the fastener stringer 3 and the fastener stringer 5 after drying of a waterproofing agent are made to pass through a heat processing chamber further continuously, and the waterproofing agent after drying is heat-processed. In the heat treatment, the first fastener tape 10 and the second fastener tape 20, the first fastener element row 50 and the second fastener element row 60, the core thread 32, the stitching thread 33, the waterproof layer (the first waterproof film 70 and the second water-stop film 80) are welded and adhered to all base materials and waterproofing agents.

Then, take out the slide fastener 1 after the heat treatment is finished, and use a cutting device such as a cutter to cut off the left and right pair of fastener stringers 3 in the longitudinal direction along the meshing portion where the first element row 50 and the second element row 60 mesh with each other. 1. The single water-stop layer (the first water-stop film 70 and the second water-stop film 80 ) in which the zipper stringers 5 are connected to each other is divided into two parts on the left and right. In this way, a pair of left and right first water stop films 70 and second water stop films 80 are formed.

As shown in FIG. 6 , in a state where the first element row 50 is separated from the second element row 60 , the first fastener tape 10 and the first waterproof film 70 have one end 10 a in the width direction, one end 70 a in the width direction, and the other end 70 a. The width direction one end 20a and the width direction one end 80a of the second fastener tape 20 and the second waterproof film 80 are separated from each other in the width direction.

As shown in FIG. 6 , in a state where the first element row 50 is separated from the second element row 60 , the first fastener tape 10 and the first waterproof film 70 have a widthwise one end 10 a and a widthwise one end 70 a compared to the first fastener element row 50 . The position O1 serving as the meshing center O of the first element row 50 and the second element row 60 extends further toward the second fastener tape 20 side (one end side in the width direction), and the second fastener tape 20 and the second waterproof film 80 The width direction one end part 20a and the width direction one end part 80a extend to the 1st fastener tape 10 side (width direction one end side) rather than the position O2 used as the meshing center O. That is, it is designed so that when the first fastener element row 50 is meshed with the second fastener element row 60 as shown in FIG. The membrane 70 and the second waterproof membrane 80 overlap the center O of engagement. By disposing the first fastener tape 10 and the second fastener tape 20, the first waterproof film 70 and the second waterproof film 80, and the first element row 50 and the second fastener element row 60 as described above, the following When the first fastener element row 50 and the second fastener element row 60 are meshed as described above, the first fastener tape 10 and the second fastener tape 20 and the first waterproof film 70 and the second waterproof film 80 can be bent into an arc. Shaped and closely connected to each other.

More specifically, in a state where the first element row 50 and the second element row 60 are separated, the first fastener tape 10 and the first waterproof film 70 have one end surface 10b in the width direction and one end surface 70b in the width direction arranged on the On the second fastener tape 20 side (one end side in the width direction) than the position O1 serving as the meshing center O, the one width direction end surface 20b and the width direction one end surface 80b of the second fastener tape 20 and the second waterproof film 80 are disposed on the opposite side. The position O2 used as the meshing center O is closer to the 1st fastener tape 10 side (width direction one end side).

One end surface 10b in the width direction and one end surface 70b in the width direction of the first fastener tape 10 and the first waterproof film 70 may be disposed at positions overlapping at least a part of the engaging heads 31a of the fastener elements 31 in the width direction, or may be positioned at In the width direction, one end surface 31e in the width direction of the engaging head 31a (that is, one end surface in the width direction of the first element row 50) is arranged on the same plane S1, and it can also be arranged on the second fastener tape closer to the engaging head 31a. 20 sides. In the example of FIG. 6 , the first fastener tape 10 and the first water-stop film 70 have one widthwise end surface 10b and the widthwise one end surface 70b disposed on the same widthwise side as the widthwise one end surface of the first fastener element row 50 . on plane S1.

The one end surface 20b in the width direction and the one end surface 80b in the width direction of the second fastener tape 20 and the second waterproof film 80 may be disposed at positions overlapping at least a part of the engaging heads 31a of the fastener elements 31 in the width direction, or may be positioned at In the width direction, one end surface 31f in the width direction of the engaging head 31a (that is, one end surface in the width direction of the second element row 60) is arranged on the same plane S2, and it can also be arranged on the first fastener tape closer to the engaging head 31a. 10 sides. In the example of FIG. 6, the width direction one end surface 20b of the 2nd fastener tape 20 is arrange|positioned on the same plane S2 as the width direction one end surface of the 2nd element row 60 in the width direction.

In this way, one end surface 10b in the width direction of the first fastener tape 10 and the first waterproof film 70, one end surface 70b in the width direction, and one end surface in the width direction of the first element row 50 are arranged on the same plane S1, and the second slide fastener One end surface 20b in the width direction of the belt 20 and the second waterproof film 80, one end surface 80b in the width direction, and one end surface in the width direction of the second element row 60 are arranged on the same plane S2, thereby making the first element row 50 When engaging with the second fastener element row 60 , the first fastener tape 10 and the second fastener tape 20 as well as the first water-stop film 70 and the second water-stop film 80 can be more reliably bent into an arc shape and be closely attached to each other. The reason for this is that the first fastener tape 10 and the second fastener tape 20 have a widthwise one end 10 a and a widthwise one end 20 a that do not interfere with the meshing of the first element row 50 and the second fastener element row 60 . Moreover, the crimping between the first fastener tape 10 and the second fastener tape 20 is not easily broken. In addition, the so-called "arranged on the same plane" does not necessarily need to be completely arranged on the same plane. Considering the taper of the engaging head 31a, it also includes that the end surface in the width direction of the fastener tape is the starting point of the taper from the engaging head 31a. A case where the range to the end point of the taper is substantially on the same plane in the same range.

By moving the slider 40 upward from the state where the first element row 50 and the second element row 60 are separated as shown in FIG. 6 , as shown in FIG. The second chain tooth row 60 meshes. At this time, the width direction one end 10a and the width direction one end 70a of the first fastener tape 10 and the first waterproof film 70 are closer than the position O1 which becomes the meshing center O of the first element row 50 and the second element row 60 . Extend toward the second fastener tape 20 side (one end in the width direction), and the one end 20a in the width direction and the one end 80a in the width direction of the second fastener tape 20 and the second waterproof film 80 are further toward The first fastener tape 10 side (one end in the width direction) extends, so the one end 10a in the width direction, the one end 70a in the width direction, the one end 20a in the width direction, and the one end 80a in the width direction are pressed against each other in the width direction to deform and buckle. They are closely connected to each other in a curved shape protruding toward the surface. In addition, at this time, as shown in FIG. The stitching thread 33 of the 1st fastener tape 10 and the 2nd fastener tape 20 are buckled and slightly stretched and floated sometimes.

In this way, when the first fastener element row 50 and the second fastener element row 60 are meshed with each other, the first fastener tape 10 and the second fastener tape 20 and the first waterproof film 70 and the second waterproof film 80 are in close contact with each other. A gap (so-called middle partition) is not formed between the first fastener tape 10 and the second fastener tape 20 and the first waterproof film 70 and the second waterproof film 80 like the conventional reverse fastener. Therefore, when the user looks at the slide fastener 1 from the front side, the first element row 50 and the second element row 60 cannot be visually recognized, and the appearance is excellent. This type of zipper 1 is especially suitable for car seats, bags, furniture and other items that emphasize aesthetics.

In addition, since the first zipper tape 10 and the second zipper tape 20 and the first water-stop film 70 and the second water-stop film 80 are bent into an arc shape and are in close contact with each other, even if the force in the direction away from each other (so-called In the case where the first fastener tape 10 and the second fastener tape 20 act on the first fastener tape 10 and the second fastener tape 20, within the range where the meshing gap between the fastener elements 31 and the fastener elements 31 is canceled, the buckling can be maintained only by slightly weakening the degree of buckling. Since they are in close contact with each other, the good appearance of the slide fastener 1 can be maintained.

When the first fastener element row 50 and the second fastener element row 60 are engaged with each other, the first fastener tape and the second fastener tape, as well as the first waterproof film 70 and the second waterproof film 80 are bent into an arc shape and mutually Therefore, no gap (middle partition) will be formed between the first zipper tape 10 and the second zipper tape 20 and the first water-stop film 70 and the second water-stop film 80, and the liquid can be prevented from flowing from the water as in the prior art. The middle partition enters.

In addition, as shown in FIG. 5 , when the first fastener element row 50 and the second fastener element row 60 are engaged with each other, the widthwise one end surface 10 b and the widthwise one end surface 20 b of the first fastener tape 10 and the second fastener tape 20 And the width direction one end surface 70b and the width direction one end surface 80b of the 1st waterproof film 70 and the 2nd water seal film 80 face the fastener element 31 side (back side). The width direction one end surface 70b and the width direction one end surface 80b of the 1st waterproof film 70 and the 2nd water seal film 80 may contact the 1st element line 50 and the 2nd element line 60 also in some cases. In addition, the surface 73 of the one widthwise end 70 a of the first water stop film 70 and the surface 83 of the width direction one end 80 a of the second water stop film 80 are in close contact with each other at the meshing center O. Therefore, the liquid intrusion suppression effect can be improved.

7 is a cross-sectional view of main parts of a slide fastener according to a modified example of the second embodiment, and is a diagram illustrating a state in which a first element row and a second element row are meshed. In the example of FIG. 7 , compared with the example of FIG. 5 , one end 10 a in the width direction of the first fastener tape 10 and the first waterproof film 70 , one end 70 a in the width direction, and the second fastener tape 20 and the second waterproof film The degree of buckling of the one end 20a in the width direction and the one end 80a in the width direction of the film 80 is enhanced, and the surface 73 of the one end 70a in the width direction of the first water-stopping film 70 and the surface of the one end 80a in the width direction of the second water-stopping film 80 83 crimp area increased. In this way, by appropriately adjusting the pressure-bonding area, it is possible to meet the requirements for water-stopping performance and water-resistance.

In addition, this invention is not limited to what was illustrated in the said embodiment, In the range which does not deviate from the summary of this invention, it can change suitably.

As described above, the following matters are disclosed in this specification.

[1] A zipper 1 comprising:

A pair of first zipper tape and second zipper tape 10, 20 is elongated, and has a first main surface 11, 21 and a second main surface 13 on the opposite side of the first main surface 11, 21, twenty three;

The first element row 50 is provided on the first main surface 11 of the widthwise one end 10a of the first fastener tape 10 ; and

The second element row 60 is provided on the first main surface 21 of the one widthwise end 20 a of the second fastener tape 20 , and in the slide fastener 1 ,

When the first element row and the second element row 50 , 60 are meshed with each other, the widthwise one end 10 a of the first fastener tape 10 and the widthwise one end of the second fastener tape 20 20a are respectively buckled into an arc shape and are in close contact with each other.

According to the structure, since the first fastener tape and the second fastener tape 10, 20 are in close contact with each other when the first fastener element row and the second fastener element row 50, 60 are meshed with each other, it is not possible to reversely install the fastener as in the prior art. A gap (so-called middle partition) is formed between the first fastener tape and the second fastener tape 10, 20 like a slide fastener. Therefore, when a user looks at the slide fastener 1 from the front side, the 1st element line and the 2nd element line 50, 60 cannot be visually recognized, and an external appearance is excellent. This type of zipper 1 is especially suitable for car seats, bags, furniture and other items that emphasize aesthetics. In addition, since the first fastener tape and the second fastener tape 10, 20 are bent into an arc shape and are in close contact with each other, even if a force (so-called horizontal pull) in a direction away from each other acts on the first fastener tape and the second fastener tape, In the case of the fastener tapes 10 and 20, within the range where the meshing gap between the fastener elements 31 and 31 is offset, the mutual closeness can be maintained only by slightly weakening the degree of buckling, so that the good appearance of the slide fastener 1 can be maintained. .

[2] The slide fastener 1 according to [1], wherein

When the first fastener element row and the second fastener element row 50, 60 are meshed with each other, the second main surface 13 of the first fastener tape 10 at one end 10a in the width direction is aligned with the second fastener element row. The said 2nd main surface 23 of the width direction one end part 20a of the fastener tape 20 is in close contact with each other.

According to the above structure, since the second main surfaces 13, 23 of the one end portions 10a, 20a in the width direction of the first fastener tape and the second fastener tape 10, 20 are in close contact with each other, the first main surfaces (11, 21) are in close contact with each other. Compared with the case of close contact, the thickness of the slide fastener 1 can be suppressed, and the sliding resistance of the slider (40) can be reduced.

[3] The slide fastener 1 according to [1] or [2], wherein,

When the first element row and the second element row 50, 60 are meshed with each other, the first main surface 11 at the end 10a in the width direction of the first fastener tape 10 and the second A chain tooth row 50 is divided to form a first space T1,

A second space T2 is defined between the first main surface 21 of the width direction one end portion 20 a of the second fastener tape 20 and the second element row 60 .

According to the above structure, by providing the first space and the second space T1, T2, when the first fastener element row and the second fastener element row 50, 60 are combined by the slider 40, the first fastener tape and the second fastener element row can be easily connected. The second fastener tape 10, 20 buckles. In addition, the larger the first space and the second space T1, T2, the greater the pressure between the first main surfaces 11, 21 of the widthwise one end surface 10b and the widthwise one end surface 20b of the first fastener tape and the second fastener tape 10, 20. The larger the contact area, the more the generation of gaps (middle partitions) between the first fastener tape and the second fastener tapes 10 and 20 can be suppressed, which contributes to the improvement of appearance, water-stopping performance, and water resistance. Furthermore, the pressure-bonding between the 1st fastener tape and the 2nd fastener tape 10,20 is hard to break, and it becomes easy to maintain a shape.

[4] The slide fastener 1 according to [1] or [2], wherein,

The first fastener tape and the second fastener tape 10, 20 are fabrics or braids.

According to the above structure, since the first fastener tape and the second fastener tape 10, 20 are woven or braided and have excellent flexibility, when the first fastener element row and the second fastener element row 50, 60 are meshed with each other, The adhesiveness of the 1st fastener tape and the 2nd fastener tape 10,20 is improved. Moreover, the buckled state of the 1st fastener tape and the 2nd fastener tape 10,20 can be maintained. Therefore, generation|occurrence|production of the gap (middle part part) between the 1st fastener tape and the 2nd fastener tape 10,20 can be suppressed, and it can contribute to the improvement of an external appearance, water-blocking property, and water resistance.

[5] The slide fastener 1 according to [1] or [2], wherein,

One end 10 a in the width direction of the first fastener tape 10 extends toward the second fastener tape 20 side from the meshing center O of the first element row and the second element row 50 , 60 . One end portion 20a in the width direction of the second fastener tape 20 extends toward the first fastener tape 10 side from the meshing center O, thereby connecting the first element row and the second element row 50. , 60, when meshing with each other, the one end 10a in the width direction of the first fastener tape 10 and the one end 20a in the width direction of the second fastener tape 20 are bent into an arc shape to be in close contact with each other.

According to the above structure, through the disposition relationship between the first fastener element row and the second fastener element row 50, 60 and the first fastener tape and the second fastener tape 10, 20, the first fastener element row and the second fastener When the rows of teeth 50, 60 are engaged with each other, the first zipper tape and the second zipper tape 10, 20 can be bent into an arc shape and closely connected with each other.

[6] The slide fastener 1 according to [5], wherein,

The one end surface 10b in the width direction of the first fastener tape 10 and the one end surface 31e in the width direction of the first element row 50 are arranged on the same plane S1, and the one end surface 20b in the width direction of the second fastener tape 20 and the one end surface 31e in the width direction of the first element row 50 are arranged on the same plane S1. One end surface 31f in the width direction of the second element row 60 is arranged on the same plane S2, so that when the first element row and the second element row 50, 60 are meshed with each other, the second element row One widthwise one end 10a of the first fastener tape 10 and the widthwise one end 20a of the second fastener tape 20 are bent into an arc shape to be in close contact with each other.

According to this structure, the 1st fastener tape and the 2nd fastener tape 10,20 can be bent into an arc shape more reliably, and can adhere|attach mutually closely. The reason for this is that it is an arrangement relationship in which one end portion 10a, 20a in the width direction of the first fastener tape and the second fastener tape 10, 20 does not interfere with the meshing of the first fastener element row and the second fastener element row 50, 60, and the first The crimping between the fastener tape and the second fastener tapes 10 and 20 is less likely to be broken.

[7] The zipper 1 according to [1] or [2], including:

The first waterproof layer 70 is disposed on the second main surface 13 of the first zipper tape 10 ; and

The second waterproof layer 80 is disposed on the second main surface 23 of the second zipper tape 20 .

According to the said structure, waterproofness can be provided to the slide fastener 1.

[8] The slide fastener 1 according to [7], wherein,

When the first element row and the second element row 50 , 60 are engaged with each other, the widthwise one end 70 a of the first waterproof layer 70 is aligned with the widthwise end portion 70 a of the second waterproof layer 80 . One end portion 80a is bent into an arc shape to be in close contact with each other.

According to the above structure, since the first fastener tape and the second fastener tape 10, 20 and the first waterproof film and the second waterproof film 70, 80 are in close contact with each other, so no gap will be formed between the first zipper tape and the second zipper tape 10, 20 and the first water-stop film and the second water-stop film 70, 80 like the existing reverse zipper 100 (so-called central partition). Therefore, when a user looks at the slide fastener 1 from the front side, the 1st element line and the 2nd element line 50, 60 cannot be visually recognized, and an external appearance is excellent. This type of zipper 1 is especially suitable for car seats, bags, furniture and other items that emphasize aesthetics.

[9] The slide fastener 1 according to [8], wherein,

The first water-stop layer and the second water-stop layer 70, 80 respectively include: the first water-stop main surface 71, 81, and the first zipper tape and the second zipper tape 10, 20 The second main surface 13, 23 is connected; and the second water-stop main surface 73, 83 is the opposite side of the first water-stop main surface 71, 81,

When the first element row and the second element row 50, 60 are engaged with each other, the second water-stop main surface 73 of the first water-stop layer 70 at one end 70a in the width direction is in contact with the second water-stop main surface 73. The second water-stop main surfaces 83 of the one end portion 80 a in the width direction of the second water-stop layer 80 are in close contact with each other.

According to the above configuration, the liquid intrusion suppression effect can be enhanced.

Claims (9)

1. A slide fastener (1), characterized in that, comprising: A pair of first zipper tapes (10) and second zipper tapes (20) are elongated and have first main surfaces (11, 21) and opposite sides of the first main surfaces (11, 21) respectively the second major surface (13, 23); A first fastener element row (50), disposed on the first main surface (11) of one end (10a) in the width direction of the first fastener tape (10); and The second element row (60) is provided on the first main surface (21) of one end (20a) in the width direction of the second fastener tape (20), and in the slide fastener (1), When the first fastener element row (50) and the second fastener element row (60) are meshed with each other, the one end (10a) in the width direction of the first fastener tape (10) is connected to the second fastener element row (60). The one ends (20a) in the width direction of the two zipper tapes (20) are respectively bent into an arc shape and closely connected to each other. 2. The slide fastener (1) according to claim 1, characterized in that, When the first fastener element row (50) and the second fastener element row (60) are meshed with each other, the first fastener tape (10) at one end (10a) in the width direction The two main surfaces (13) are in close contact with the second main surface (23) of the one end portion (20a) in the width direction of the second zipper tape (20). 3. The slide fastener (1) according to claim 1 or 2, characterized in that, When the first fastener element row (50) and the second fastener element row (60) are engaged with each other, the first fastener tape (10) at one end (10a) in the width direction A first space (T1) is formed between the first main surface (11) and the first element row (50), A second space ( T2 ) is defined between the first main surface ( 21 ) and the second element row ( 60 ) at one end ( 20 a ) in the width direction of the second fastener tape ( 20 ). 4. The slide fastener (1) according to claim 1 or 2, characterized in that, The first zipper tape (10) and the second zipper tape (20) are fabrics or braids. 5. The slide fastener (1) according to claim 1 or 2, characterized in that, The one end (10a) in the width direction of the first fastener tape (10) is further toward the meshing center (O) of the first element row (50) and the second element row (60). The side of the second zipper tape (20) extends, and the one end (20a) in the width direction of the second zipper tape (20) is further toward the first zipper tape (10) than the engagement center (O). side extension, whereby when the first fastener element row (50) and the second fastener element row (60) are engaged with each other, the widthwise one end (10a) of the first fastener tape (10) ) and the one end portion (20a) in the width direction of the second zipper tape (20) are bent into an arc shape and are in close contact with each other. 6. The slide fastener (1) according to claim 5, characterized in that, One end surface (10b) in the width direction of the first fastener tape (10) and one end surface (31e) in the width direction of the first element row (50) are arranged on the same first plane (S1), and the One end face (20b) in the width direction of the second fastener tape (20) and one end face (31f) in the width direction of the second fastener element row (60) are arranged on the same second plane (S2), whereby the When the first element row (50) and the second element row (60) mesh with each other, the one end (10a) in the width direction of the first fastener tape (10) and the second fastener tape The one end portion (20a) in the width direction of (20) is bent into an arc shape to be in close contact with each other. 7. The slide fastener (1) according to claim 1 or 2, characterized in that, comprising: A first waterproof layer (70), disposed on the second main surface (13) of the first zipper tape (10); and The second waterproof layer (80) is arranged on the second main surface (23) of the second zipper tape (20). 8. The slide fastener (1) according to claim 7, characterized in that, When the first element row (50) and the second element row (60) are engaged with each other, one end (70a) in the width direction of the first waterproof layer (70) and the second One end (80a) in the width direction of the water-stopping layer (80) is bent into an arc shape to be in close contact with each other. 9. The slide fastener (1) according to claim 8, characterized in that, The first water-stop layer (70) and the second water-stop layer (80) respectively include: a first water-stop main surface (71, 81), and the first zipper tape (10) and the second water-stop layer The second main surfaces (13, 23) of the two zipper tapes (20) meet; and the second water-stop main surface (73, 83) is opposite to the first water-stop main surface (71, 81) side, When the first element row (50) and the second element row (60) are engaged with each other, the one end (70a) in the width direction of the first waterproof layer (70) The second water-stop main surface (73) is in close contact with the second water-stop main surface (83) at one end (80a) in the width direction of the second water-stop layer (80).

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