WO2020230333A1

WO2020230333A1 - Slide fastener

Info

Publication number: WO2020230333A1
Application number: PCT/JP2019/019581
Authority: WO
Inventors: 孝幸犬飼
Original assignee: Ykk株式会社
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-11-19
Also published as: CN113795173A; CN113795173B; TW202042695A; TWI711398B

Abstract

In a slide fastener (1) according to the present invention, a stopper (60) having an upper half part (61) and a lower half part (66) is disposed adjacent to an element row (12). The upper half part (61) and the lower half part (66) of the stopper (60) respectively have upper and lower body parts (62, 67) fixed to a fastener tape (11), and upper and lower protrusion parts (63, 68) protruding from the upper and lower body parts (62, 67) in the widthwise direction. The upper and lower body parts (62, 67) are set to have a size such that shoulders of sliders (30, 31a) can be inserted into the upper and lower body parts. The upper and lower protrusion parts (63, 68) have contact rear end parts (71) that contact flange parts (35, 36) of the sliders (30, 30a). Each contact rear end part (71) has a contact inclined surface (73) that decreases in height dimension toward the rear side, and the height dimension (H1) from a front end position of an upper contact inclined surface (73) to a front end position of a lower contact inclined surface (73) is larger than an interval (D1) between the upper and lower flange parts. Accordingly, the vertical pulling strength of the slide fastener (1) can be increased.

Description

Slide fastener

The present invention relates to a slide fastener in which a stopper for contacting a slider is arranged adjacent to a front end portion of an element row.

As one of the slide fasteners, the slide fastener 100 disclosed in International Publication No. 2016/046915 (Patent Document 1) as shown in FIG. 11 is known. The slide fastener 100 of Patent Document 1 includes a pair of left and right fastener stringers 101 having an element row 103 provided on the tape side edge of the fastener tape 102, and left and right fastener strings arranged adjacent to the front end of each element row 103. It slides along the element row 103 with the stopper 104 (sometimes referred to as the upper stopper or the upper stopper) and the opening / detaching fitting 105 arranged adjacent to the rear end of the element row 103. It has a slider 106.

Each fastener element 107 forming the element row 103 of Patent Document 1 has a central land portion fixed to the fastener tape 102, a first bulge that bulges upward from the central land portion, and a bulge downward from the central land portion. It has a second bulging portion to be ejected. Further, the upper surface of the first bulging portion and the lower surface of the second bulging portion are a four-sided base end face long in the tape width direction and a protruding end face protruding from the front end edge of the tip end portion of the base end face in the tape length direction. To be equipped. The fastener element 107 having such a shape can exhibit an appearance like a general metal fastener element (metal element) when the slide fastener 100 is viewed from the front and back sides of the fastener tape 102, for example. ..

Further, the stop portion 104 of Patent Document 1 has a substantially rectangular parallelepiped shape, and is continuously formed so as to wrap the end edge of the tape from the front surface to the back surface of the fastener tape 102. By arranging such a stop portion 104 at the front end portion of the element row 103, the upper flange portion and the lower flange portion of the slider 106 that slides forward are brought into contact with the stop portion 104, and the slider The sliding of 106 can be stopped. Thereby, it is possible to prevent the slider 106 from falling off from the front end portion of the element row 103.

On the other hand, as a stopper for a slide fastener arranged adjacent to the front end of the element row, for example, the stopper 110 disclosed in International Publication No. 2017/104007 (Patent Document 2) as shown in FIG. Further, the stop portion 120 disclosed in the Chinese utility model announcement No. 2075006037 (Patent Document 3) as shown in FIG. 13 is also known.

The

stoppers

110 and 120 described in Patent Documents 2 and 3 are the

main bodies

111 and 121 fixed to the fastener tape and the protruding portions 112 protruding from the

main bodies

111 and 121 in the front and back directions of the tape of the fastener tape. It has 122. Such stopping

portions

110 and 120 bring the upper and lower wing plates of the sliding slider into contact with the protruding

portions

112 and 122 protruding in the front and back directions of the tape. , The sliding of the slider can be stopped.

International Publication No. 2016/046915 International Publication No. 2017/104007 China Utility Model Announcement No. 2075006037

For example, in the substantially rectangular parallelepiped stop portion 104 described in Patent Document 1, for example, when the distance between the upper flange portion and the lower flange portion of the slider 106 is relatively wide, the upper flange portion and the lower flange portion of the slider 106 are relatively wide. Since the contact area where the portion contacts the stopper portion 104 becomes smaller, the stopper portion 104 may easily enter between the upper flange portion and the lower flange portion, and as a result, the vertical pulling strength of the stopper portion 104 is lowered.

Here, the vertical pulling strength of the stop portion is described in S-3015 of the Japanese Industrial Standards (JIS). In this longitudinal strength test, a slide fastener with a stopper and a slider is fixed to the upper clamp and the lower clamp in a predetermined direction and position, and the load is applied by pulling the upper clamp and the lower clamp in a direction away from each other. In addition, it is performed by measuring the maximum load when the slider is pulled out beyond the stop portion (upper stop portion), or when the stop portion is displaced or detached. By such a test, it is possible to investigate the strength capable of retaining the function of the stopper against the pressure from the slider.

When the vertical pulling strength of the stop portion 104 decreases as described above, for example, when the slider 106 is strongly pulled toward the stop portion 104, the stop portion 104 passes through the gap between the upper flange portion and the lower flange portion of the slider 106. This makes it easier and may cause the slider 106 to fall out of the element row 103. On the other hand, in order to increase the vertical pulling strength of the stop portion 104, for example, it is conceivable to increase the thickness (height dimension) of the stop portion 104 of Patent Document 1, but in this case, the manufacturing cost is increased and the appearance quality is improved. It may lead to a decrease. Further, if the stopper 104 is too thick as compared with the fastener element 107, it is difficult to sew the fastener tape 102 of the slide fastener 100 to a part of the product (for example, garment cloth for clothes). It is also possible that

On the other hand, the

stoppers

110 and 120 described in Patent Documents 2 and 3 have

protrusions

112 and 122 protruding from the

main body

111 and 121 in the front and back directions of the fastener tape, as described above. Therefore, in the

stop portions

110 and 120 of Patent Documents 2 and 3, it is easier to secure a wider contact area between the

stop portions

110 and 120 when the slider is brought into contact with the

stop portions

110 and 120 than in the stop portion 104 of Patent Document 1. Become.

However, in the

stop portions

110 and 120 of Patent Documents 2 and 3, it is considered that the touch of the slide fastener becomes worse due to the installation of the

protrusions

112 and 122. Further, since the protruding

portions

112 and 122 of the

stopper portions

110 and 120 project in the front and back directions from the

main body portions

111 and 121 of the

stopper portions

110 and 120 and the fastener element, for example, a slide fastener is sewn to the product by sewing. Occasionally, it is conceivable that the

protruding portions

112 and 122 of the stopping

portions

110 and 120 become an obstacle and reduce the workability of the sewing process.

Further, in the case of the

stoppers

110 and 120 of Patent Documents 2 and 3, the presence of the

protrusions

112 and 122 protruding in the front and back directions of the

stoppers

110 and 120 is noticeable depending on the form and design of the product to which the slide fastener is attached. May get stuck. Further, when the slider is brought into contact with the

stop portions

110 and 120, the

protruding portions

112 and 122 of the

stop portions

110 and 120 protrude outward from the upper and lower wing plates of the slider, so that a part of the

stop portions

110 and 120. Becomes easier to see from the outside. Therefore, depending on the nature and design of the product, it may be required to provide the

stoppers

110 and 120 inconspicuously.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is that the slider can be brought into contact with and stopped without providing a protruding portion that protrudes in the front and back directions of the tape from the fastener element. The present invention is to provide a slide fastener having a stopper portion capable of increasing the vertical pulling strength.

In order to achieve the above object, the slide fastener provided by the present invention includes a pair of left and right fastener stringers provided with an element row on the tape side edge of the fastener tape, and a slider that slides along the element row. At least one of the left and right fastener stringers has a stopper arranged adjacent to a front end portion which is an end portion of the element row on the closing direction side, and the slider is provided with an upper wing plate. , A lower wing plate arranged away from the upper wing plate, a connecting column connecting the upper wing plate and one end of the lower wing plate, and the lower wing plate from the left and right side edges of the upper wing plate. In a slide fastener having left and right upper flange portions extending toward the upper wing plate and left and right lower flange portions extending from the left and right side edges of the lower wing plate toward the upper wing plate, the stopper portion is It has an upper half portion arranged on the upper surface side of the tape of the fastener tape and a lower half portion arranged on the lower surface side of the tape of the fastener tape, and the upper half portion is an upper main body fixed to the fastener tape. The lower half portion has a portion and an upper protruding portion protruding from the upper main body portion in the tape width direction, and the lower half portion includes a lower main body portion fixed to the fastener tape and a tape width direction from the lower main body portion. The upper main body and the lower main body are set to a size that allows the shoulder opening of the slider to be inserted into the tape width direction and the height direction. The upper protruding portion and the lower protruding portion have a contact rear end portion for contacting the upper flange portion or the lower flange portion of the slider, and each contact rear end portion is the upper protruding portion or the lower side. It has a contact inclined surface that reduces the dimension of the protruding portion in the height direction toward the rear, from the front end position of the contact inclined surface in the upper protruding portion to the front end position of the contact inclined surface in the lower protruding portion. The most important feature is that the dimension in the height direction is larger than the distance between the upper flange portion and the lower flange portion of the slider.

In the slide fastener of the present invention, it is preferable that the contact inclined surface at the rear end of the contact is formed as a concave curved surface.
Further, it is preferable that the contact rear end portion has an auxiliary inclined surface that is arranged between the contact inclined surface and the fastener tape and that reduces the dimension in the height direction toward the rear.

In the slide fastener of the present invention, it is preferable that the upper surface of the upper protruding portion and the lower surface of the lower protruding portion are formed on a flat surface continuous from the upper surface of the upper main body portion or the lower surface of the lower main body portion.

Further, the upper surface of the upper main body portion and the lower surface of the lower main body portion have dimensions in the height direction of the upper main body portion or the lower main body portion from the upper protruding portion or the lower protruding portion in the width direction. It is preferable to have an opposed inclined surface that decreases in the direction of separation.

In the slide fastener according to the present invention, the stop portion (upper stop portion) adjacent to the front end portion of the element row is arranged on the upper surface side of the tape of the fastener tape which is one in the height direction, and the upper half portion and the height direction. It has a lower half portion arranged on the lower surface side of the tape, which is the other side of the tape. The upper half of the stopper has an upper main body fixed to the fastener tape and an upper protruding portion protruding from the upper main body toward the inside of the tape of the fastener tape in the tape width direction, and the lower half. The portion has a lower main body portion fixed to the fastener tape and a lower protruding portion protruding from the lower main body portion toward the inside of the tape in the tape width direction.

In this case, the width dimension (dimension in the tape width direction) and the height dimension (dimension in the height direction) of the entire upper main body and lower main body can be inserted into the shoulder opening of the slider and accommodated in the element guide path. It is set to a large size. Further, a contact rear end portion for contacting the upper flange portion of the slider is arranged at the end portion on the side closer to the element row in the length direction of the upper protruding portion. At the end of the lower protrusion in the length direction near the element row, a contact rear end that contacts the lower flange of the slider is arranged.

In the slide fastener of the present invention having the above-mentioned stop portion, when the slider is slid in the closing direction of the element row, the upper main body portion and the lower main body portion of the stop portion are inserted into the slider and the slider is inserted. The upper flange portion and the lower flange portion of the slider can be brought into contact with the contact rear end portion of the upper protrusion portion and the lower protrusion portion protruding in the tape width direction of the stop portion.

Therefore, in the present invention, for example, as in the above-mentioned stop portions of Patent Documents 2 and 3 (see FIGS. 12 and 13), the stop portion is provided with a protruding portion that protrudes from the fastener element in the front and back directions of the tape. Even if it is not (in other words, even if the upper and lower blade plates of the slider do not collide with the stop portion), the slider is brought into contact with the upper and lower protrusions of the stop portion to stably stop. Can be done. In addition, since the stopper can be formed without providing a protruding portion in the front and back directions of the tape, the influence of the stopper on the appearance of the product with the slide fastener is reduced, and the stopper is formed so that a good touch can be obtained. It is also possible to do.

In particular, in the present invention, each contact rear end portion of the upper protruding portion and the lower protruding portion has a contact inclined surface that reduces the height dimension thereof toward the rear, and the contact inclined surface in the upper protruding portion. The height dimension from the front end position of the slider to the front end position of the contact inclined surface in the lower protruding portion is made larger than the distance between the upper flange portion and the lower flange portion of the slider. As a result, for example, when the slider is brought into contact with the stop portion, the upper flange portion and the lower flange portion of the slider can be stably brought into contact with the upper protruding portion and the lower protruding portion (particularly each contact inclined surface). Therefore, it is possible to prevent the slider from falling over the stop portion.

Further, in the present invention, for example, even when the upper flange portion and the lower flange portion of the slider come into contact with the upper protruding portion and the lower protruding portion of the stop portion at positions shifted in the height direction, the upper protruding portion and the lower side The contact inclined surface of the protruding portion can guide and hold the upper flange portion and the lower flange portion of the slider to predetermined positions corresponding to each other of the upper protruding portion and the lower protruding portion. As a result, the upper flange portion and the lower flange portion of the slider can be brought into contact with the upper protruding portion and the lower protruding portion of the stop portion of the present invention evenly and stably.

For example, in the case of a conventional stopper, when the stopper receives a large pressing force from the upper flange portion and the lower flange portion of the slider, the posture of the stopper portion may be tilted with respect to the upper flange portion and the lower flange portion. .. In this case, the upper flange portion and the lower flange portion are less likely to be caught by the stopper portion, and a part of the stopper portion easily enters between the upper flange portion and the lower flange portion of the slider. As a result, the vertical pull strength of the stopper portion May lead to a decline in.

On the other hand, in the present invention, as described above, the upper flange portion and the lower flange portion of the slider can be brought into contact with the upper protruding portion and the lower protruding portion of the stop portion evenly and stably. Therefore, even if the stop portion receives a large pressing force from the upper flange portion and the lower flange portion, the posture of the stop portion can be made difficult to tilt. As a result, it is possible to effectively prevent a part of the stop portion from entering between the upper flange portion and the lower flange portion of the slider, so that the vertical pulling strength of the stop portion can be increased.

In such a slide fastener of the present invention, the contact inclined surface arranged on the upper protruding portion and the lower protruding portion of the stop portion is formed as a concave curved surface. As a result, when the upper flange portion and the lower flange portion of the slider are brought into contact with the upper protruding portion and the lower protruding portion, the upper flange portion and the lower flange portion are formed on the concave contact inclined surfaces of the upper protruding portion and the lower protruding portion, respectively. It is easy to properly receive the lower flange and hold it stably. Further, even if the contact positions of the upper flange portion and the lower flange portion are displaced in the height direction, the upper flange portion and the lower flange portion can be appropriately guided to a predetermined position along the curved surface. Further, since the contact inclined surface is a concave curved surface, the contact inclined surface can be made difficult to see when the upper protruding portion and the lower protruding portion are viewed from the front and back sides of the tape, and the contact inclined surface can be made difficult to see. The visual effect is that it becomes a shadow part and looks dark. Therefore, it is possible to improve the appearance quality of the stop portion by making the contact rear end portion of the upper protrusion portion and the lower protrusion portion relatively inconspicuous.

Further, in the present invention, the contact rear end portion arranged on the upper protruding portion and the lower protruding portion of the stop portion is arranged between the contact inclined surface and the fastener tape, and the dimension in the height direction is directed to the rear. Has an auxiliary slope to reduce. As a result, for example, even if the slider has a narrow distance between the upper flange portion and the lower flange portion, the upper flange portion and the lower flange portion of the slider are brought into contact with each other at the upper protruding portion and the lower protruding portion. It can be brought into contact with a surface or an auxiliary inclined surface. As a result, the upper flange portion and the lower flange portion of the slider can be held more stably at the rear ends of the upper and lower contacts.

In this case, the dimension in the height direction from the boundary position between the contact inclined surface and the auxiliary inclined surface in the upper protruding portion to the boundary position between the contact inclined surface and the auxiliary inclined surface in the lower protruding portion is the upper flange portion and the lower side of the slider. It is preferably smaller than the distance between the flange portions. As a result, the upper flange portion and the lower flange portion can be more stably held on the contact inclined surface of the upper protruding portion and the lower protruding portion.

Further, in the present invention, the upper surface of the upper protruding portion and the lower surface of the lower protruding portion of the stop portion are formed as a flat surface smoothly continuous from the upper surface of the upper main body portion or the lower surface of the lower main body portion. As a result, the touch of the stopper can be improved. In addition, the appearance quality of the stopper can be improved to improve the appearance of the product with the slide fastener. Further, for example, when the slide fastener is sewn on the fabric of the product by the sewing process, the workability of the sewing process, which is caused by the stop portion of Patent Documents 2 and 3, is not deteriorated.

Further, the upper surface of the upper main body portion and the lower surface of the lower main body portion in the stop portion of the present invention have dimensions in the height direction of the upper main body portion or the lower main body portion from the upper protruding portion or the lower protruding portion in the width direction. It has an opposed inclined surface that reduces in the direction of separation (in other words, the direction of approaching the fastener stringer on the mating partner side).

By providing such an opposed inclined surface, when the slider is slid toward the stop portion, the upper main body portion and the lower main body portion of the stop portion can be moved from the shoulder opening of the slider to the same as the fastener element. Since it can be smoothly inserted into the slider, the slidability in the vicinity of the stop portion of the slider can be improved. Further, since the appearance and feel of the stopper can be brought closer to the fastener element of the element row, the added value of the slide fastener can be increased.

It is a top view which shows the slide fastener which concerns on embodiment of this invention. It is a top view which shows the state which the slider is in contact with the stop part on the right side. It is a perspective view of the fastener element. It is a rear view which looked at the fastener element from the tape length direction. It is a perspective view of the right side stop part. It is a top view of the right side stop part. It is a side view which looked at the right side stop part from the inside of a tape in the tape width direction. It is a rear view which looked at the right side stop part from the element row side in the tape length direction. It is a schematic diagram which shows the relationship between the right side stop part and a slider when the right side stop part and a slider are seen from the IX-IX line shown in FIG. It is a schematic diagram which shows the relationship between the right side stop part and a slider when a slider different from the Example is used. It is a top view which shows the conventional slide fastener. It is a perspective view which shows the conventional stop part. It is a top view which shows another pair of conventional stoppers.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings with reference to examples. It should be noted that the present invention is not limited to the examples described below, and various changes can be made as long as it has substantially the same configuration as the present invention and exhibits the same effects. It is possible.

For example, in the following examples, a slide fastener in which a plurality of synthetic resin fastener elements are attached to the tape edge of the fastener tape by injection molding will be described. However, in the present invention, a plurality of metal fastener elements are used. The same applies to slide fasteners attached to the tape side edge of the fastener tape by plastic deformation due to pressing or by die casting.

FIG. 1 is a plan view showing a slide fastener according to the present embodiment, and FIG. 2 is a plan view showing a state in which the slider is in contact with the stop portion on the right side. 3 and 4 are schematic views of the fastener element viewed from different directions, and FIGS. 5 to 8 are schematic views of the right side stopper portion viewed from different directions.

Further, in the following description, the front-rear direction refers to the tape length direction of the fastener tape parallel to the sliding direction of the slider, and in particular, the direction in which the slider slides so as to mesh the left and right element rows (closing direction). ) Is the front, and the sliding direction (separation direction) is the rear so as to separate the left and right element rows. The left-right direction refers to the tape width direction of the fastener tape, for example, a direction orthogonal to the sliding direction of the slider and parallel to the front surface (upper surface) and the back surface (lower surface) of the fastener tape.

The vertical direction refers to a direction orthogonal to the front-rear direction and the left-right direction, for example, the height direction of the fastener element orthogonal to the front surface and the back surface of the fastener tape. In particular, in the following embodiment, the direction on the side where the slider pull is arranged with respect to the fastener tape is upward, and the direction on the opposite side is downward. Specifically, in the case of this embodiment, the front-rear direction is the up-down direction on the paper surface of FIG. 1, and the left-right direction is the left-right direction on the paper surface of FIG. The vertical direction refers to the front and back directions on the paper surface of FIG. 1, and the upper and lower directions are the front side and the back side of the paper surface.

The slide fastener 1 according to this embodiment is slidable along a pair of left and

right fastener stringers

10a and 10b in which element rows 12 are provided on opposite tape side edges of the left and right fastener tapes 11 and along the element rows 12. It has a slider 30 and.

Further, the left and

right fastener stringers

10a and 10b are a fastener tape 11, a plurality of fastener elements 20 fixed to the fastener tape 11, and left and right stop portions (upper stop) arranged adjacent to the front end portion of the element row 12. Part) 50 and 60, respectively. Further, the left and

right fastener stringers

10a and 10b are provided with opening / detaching fittings (not shown) arranged adjacent to the rear end portion of the element row 12.

In this case, the fastener element 20, the left and

right stoppers

50, 60, and the opening / closing fitting are thermoplastic resins such as nylon, polyacetal, polyamide, polypropylene, polybutylene terephthalate, polycarbonate, or such thermoplastic It is formed by injection molding a composite material containing reinforcing fibers such as glass fiber, carbon fiber, and aramid fiber in a resin onto a fastener tape 11. In the present invention, the material of each member and each part forming the slide fastener 1 is not particularly limited and can be arbitrarily changed.

The slide fastener 1 of the present embodiment has a main feature in the form of the fasteners 50 and 60 (particularly, the fastener 60 on the right side), and the fastener tape 11, the fastener element 20, and the opening and closing fitting of the present embodiment. The insert and the slider 30 have a shape and structure similar to or similar to those of conventionally known slide fasteners.

For example, the left and right fastener tapes 11 have a tape main portion to which the fastener attachment member is attached, and a tape side edge portion (element attachment portion) extending from the tape main portion toward the fastener stringer of the meshing partner. In this case, a core cord portion 11a is formed along the tape length direction on the tape side edge edges of the left and right fastener tapes 11 facing each other. A plurality of fastener elements 20 are fixed to the tape side edge portion including the core string portion 11a of the fastener tape 11 at regular intervals in the tape length direction, whereby the left and right element rows 12 are formed. ..

The fastener element 20 of this embodiment has a shape similar to the fastener element described in Example 2 of Patent Document 1 described above. Specifically, the fastener element 20 of this embodiment has an element central portion (central land portion) 21 arranged at the central portion in the height direction and fixed to the fastener tape 11, and above the element central portion 21. It has an upper bulging portion (first bulging portion) 22 that bulges downward and a lower bulging portion (second bulging portion) 23 that bulges downward from the element central portion 21. The element central portion 21, the upper bulging portion 22, and the lower bulging portion 23 are integrally formed.

The element central portion 21 has a central upper half portion 21a arranged on the upper side in the height direction and a central lower half portion 21b arranged on the lower side in the height direction. In this case, the central upper half portion 21a and the upper bulging portion 22 form the element upper half portion, and the central lower half portion 21b and the lower bulging portion 23 form the element lower half portion. Further, the central upper half portion 21a and the central lower half portion 21b of the element central portion 21 have predetermined lengths in the tape length direction so that the central lower half portion 21b is located in front of the central upper half portion 21a. It is formed by shifting the position.

The element central portion 21 (center upper half portion 21a and central lower half portion 21b) includes an element body portion 24 fixed to the fastener tape 11 and a neck portion 25 extending from the element body portion 24 in a shape confined in the tape width direction. And a meshing head 26 that further extends from the neck 25 and bulges in the tape length direction.

The upper bulging portion 22 of the fastener element 20 has a bulging end surface 27 which is an upper surface and an outer peripheral surface arranged between the bulging end surface 27 and the element central portion 21, and the bulging end surface 27 and the outer peripheral surface. A curved surface-like ridge with a small curvature is arranged between the two. The bulging end surface 27 of the upper bulging portion 22 is a base end surface 27a that exhibits a substantially quadrilateral shape that is long in the tape width direction when the fastener element 20 is viewed from above, and an end of the base end surface 27a on the meshing head 26 side. It is provided with a protruding end face 27b that protrudes forward from the portion in a substantially triangular shape that is tapered. By providing the bulging end surface 27 with such a shape, when the fastener element 20 made of synthetic resin is viewed from above, the upper bulging portion 22 can exhibit an appearance close to that of a metal element.

Further, as shown in FIGS. 3 and 4, the bulging end surface (upper surface) 27 of the upper bulging portion 22 has a height dimension of the upper bulging portion 22 toward the meshing head 26 side in the tape width direction. It is formed on an inclined surface that slopes downward so as to gradually decrease. Thereby, for example, when the slider 30 is slid in the closing direction to introduce the fastener element 20 into the element guide path of the slider 30, the fastener element 20 can be prevented from being caught by the slider 30. Further, when the closed slide fastener 1 receives a pushing force or the like and a part of the slide fastener 1 is locally strongly bent in the front and back directions of the tape, it is possible to prevent the chain from cracking.

The lower bulging portion 23 of the fastener element 20 is formed in a form substantially symmetrical with respect to the upper bulging portion 22. Therefore, the lower bulging portion 23 has a bulging end surface 27 which is a lower surface and an outer peripheral surface arranged between the bulging end surface 27 and the element central portion 21 as in the upper bulging portion 22. Further, the bulging end face 27 of the lower bulging portion 23 is a base end face having a substantially quadrilateral shape that is long in the tape width direction when the fastener element 20 is viewed from below, and the meshing head 26 side of the base end face. It is provided with a substantially triangular protruding end face that protrudes forward from the end. Further, the bulging end surface 27 of the lower bulging portion 23 is formed as an inclined surface that gradually reduces the height dimension of the lower bulging portion 23 toward the meshing head 26 side in the tape width direction.

The opening and closing fittings (not shown) of this embodiment include a butterfly rod arranged at the rear end of the fastener stringer 10a on the left side, a box rod arranged at the rear end of the fastener stringer 10b on the right side, and a box rod. It has a box body integrally molded at the rear end. In the present invention, instead of the opening / detaching fitting, a stopper formed over the left and

right fastener stringers

10a and 10b may be installed.

The slider 30 of this embodiment has a slider body 31 and a pull tab 32 attached to the slider body 31. The slider fuselage 31 is a connection that connects the upper wing plate 33, the lower wing plate 34 that is arranged in parallel with the upper wing plate 33, and the front end portion of the upper wing plate 33 and the front end portion of the lower wing plate 34. The pillars, the left and right upper flange portions 35 extending from the left and right side edges of the upper wing plate 33 toward the lower wing plate 34, and the left and right side edges of the lower wing plate 34 extending toward the upper wing plate 33. It has left and right lower flange portions 36 and a puller mounting portion 37 provided on the upper wing plate 33.

At the front end of the slider body 31, left and right shoulder openings are provided with a connecting pillar in between. A rear opening is provided at the rear end of the slider body 31. A substantially Y-shaped element guide path that connects the left and right shoulder openings and the rear opening is formed between the upper wing plate 33 and the lower wing plate 34. Left and right tape insertion gaps 38 for inserting the left and right opposing edges of the fabric are formed between the upper flange portion 35 and the lower flange portion 36 of the slider body 31. In the case of this embodiment, the upper flange portion 35 and the lower flange portion 36 are formed so that the distance between the left and right tape insertion gaps 38 is slightly larger in the height direction.

The left and

right stop portions

50 and 60 in this embodiment have different forms from each other, and in the case of this embodiment, the right stop portion 60 has a characteristic form as described above.
As shown in FIGS. 5 to 8, the fixing portion 60 on the right side of this embodiment includes a fixing upper half portion 61 arranged on the tape surface (upper surface) side of the fastener tape 11 which is the upper side in the height direction. It has a stopper lower half portion 66 arranged on the tape back surface (lower surface) side of the fastener tape 11 which is the lower side in the height direction. In particular, in the case of this embodiment, the upper half portion 61 for fixing and the lower half portion 66 for stopping are formed symmetrically with each other around a reference plane located at the center in the height direction of the fastener tape 11. ..

The upper half portion 61 for fastening is fixed to the fastener tape 11 and has a shape close to a rectangular parallelepiped. It has an upper protruding portion (upper protruding portion for stopping) 63 that protrudes in the width direction toward the tape main body side).

Similarly, the lower half portion 66 for stopping is fixed to the fastener tape 11 and has a shape close to a rectangular parallelepiped from the lower main body portion (lower main body portion for stopping) 67 and the front end portion of the lower main body portion 67. The fastener tape 11 has a lower protruding portion (lower protruding portion for stopping) 68 that protrudes in the width direction toward the inside of the tape.

In the right stop portion 60, the upper main body portion 62 and the lower main body portion 67 are integrally formed by wrapping the core string portion 11a of the fastener tape 11 inside, and the upper surface and the lower surface of the tape side edge portion. It is fixed to and each. The upper main body portion 62 faces the upper surface portion facing upward, the rear surface portion facing the element row 12, the front surface portion arranged on the opposite side of the rear surface portion in the tape length direction, and the fastener stringer 10a on the mating partner side. It has a facing side surface portion (left side surface portion) and an inner side surface portion (right side surface portion) of the fastener tape 11 facing the inside of the tape. Further, the lower main body portion 67 has a lower surface portion, a rear surface portion, a front surface portion, a facing side surface portion (left side surface portion), and an inner side surface portion (right side surface portion), similarly to the upper main body portion 62.

Further, a concave surface portion 62a formed by being curved in a concave shape is arranged between the upper surface portion and the rear surface portion of the upper main body portion 62, and between the upper surface portion and the front surface portion, and corresponds to the lower main body portion 67. A concave surface portion 67a similar to the upper main body portion 62 is also provided on the portion to be used. Since such

concave surface portions

62a and 67a appear dark like shadows, as a result, the right side stop portion 60 can be made to appear smaller than the actual size.

Further, in this embodiment, the maximum value of the total height dimension of the upper main body portion 62 and the lower main body portion 67 is set to the same size as the maximum value of the height dimension of the fastener element 20. The maximum value of the width dimension in 62 and the maximum value of the width dimension in the lower main body 67 are set to be the same as the maximum value of the width dimension of the fastener element 20. Here, it is assumed that the same size includes an error of about 10%. The total height dimension of the upper main body 62 and the lower main body 67 means the dimension in the vertical direction (tape thickness direction) from the upper surface of the upper main body 62 to the lower surface of the lower main body 67. Further, the width dimension of the upper main body portion 62 and the lower main body portion 67 means the dimension in the tape width direction between the facing side surface and the inner side surface.

Since the upper main body 62 and the lower main body 67 have the height and width dimensions as described above, when the slider 30 is slid in the closing direction and brought into contact with the right stop 60, the right stop is stopped. The upper main body 62 and the lower main body 67 of the portion 60 can be smoothly inserted into the element guide path from the shoulder opening of the slider 30.

In particular, in this case, the facing side surfaces (left side surface) of the upper main body portion 62 and the lower main body portion 67 are a plurality of fasteners attached to the fastener stringer 10b, for example, in a plan view or a bottom view of the right fastener stringer 10b. It is arranged on a virtual straight line formed along the tape length direction by virtually connecting the tips of the meshing heads 26 of the element 20. Further, the inner side surface (right side surface) of the upper main body portion 62 and the lower main body portion 67 has a plurality of fastener elements 20 attached to the fastener stringer 10b, for example, in a plan view or a bottom view of the right fastener stringer 10b. It is arranged on a virtual straight line formed along the tape length direction by virtually connecting the end edges of the element body 24 side.

The maximum value of the length dimension in the upper main body portion 62 and the lower main body portion 67 is set to be larger than the maximum value of the length dimension in the fastener element 20. As a result, when the right side stop portion 60 is housed inside the slider 30, the housed state of the stop portion 60 can be stabilized.

In this embodiment, on the upper surface of the upper main body 62, for example, as shown in FIG. 8, a flat main upper surface (first upper surface) 62b arranged parallel to the tape surface of the fastener tape 11 and the upper main body A flat facing inclined upper surface (second upper surface) 62c formed so as to be inclined toward the facing side surface portion of 62 is arranged. In this case, the facing inclined upper surface 62c of the upper main body 62 is connected to the main upper surface 62b via the bent portion, and the height dimension of the upper main body 62 is directed to the left (direction away from the upper protruding portion 63). It slopes down so that it gradually decreases.

Similar to the upper surface of the upper main body 62, the lower surface of the lower main body 67 also has the main lower surface 67b (first lower surface) parallel to the back surface of the tape and the height dimension of the lower main body 67 to the left. It has an opposed inclined lower surface (second lower surface) 67c to be gradually reduced. In this case, the facing inclined upper surface 62c of the upper main body 62 and the facing inclined lower surface 67c of the lower main body 67 are the bulging end surfaces (upper surface and lower surface) of the upper bulging portion 22 and the lower bulging portion 23 in the fastener element 20. ) 27 is formed at an inclination angle similar to the above-mentioned inclined surface.

Since the facing inclined upper surface 62c and the facing inclined lower surface 67c are provided on the right side stop portion 60, when the slider 30 is slid in the closing direction of the element row 12, the upper body portion of the right side stop portion 60 is provided. The 62 and the lower main body 67 can be smoothly inserted into the element guide path from the shoulder opening of the slider 30 with the same movement as the fastener element 20.

Further, a ridge line portion that is gently curved in a convex shape is formed between the main upper surface 62b of the upper main body 62 and the outer surface (right side) of the inner side surface, and the main lower surface of the lower main body 67. A convex ridgeline portion is also formed between 67b and the outer surface (right side surface) of the inner side surface portion.

The upper protruding portion 63 and the lower protruding portion 68 of the right side stop portion 60 are connected to the front end portions of the upper main body portion 62 and the lower main body portion 67. In this case, the upper surface of the upper protruding portion 63 and the lower surface of the lower protruding portion 68 are smooth with respect to the main upper surface 62b of the upper main body 62 and the main lower surface 67b of the lower main body 67, respectively, without forming a step. It is continuously formed in. Therefore, the upper surface of the upper protruding portion 63 and the main upper surface 62b of the upper main body 62 form a single flat surface, and the lower surface of the lower protruding portion 68 and the main lower surface 67b of the lower main body 67. Form a single flat surface. Further, the front surfaces of the upper protrusion 63 and the lower protrusion 68 are smoothly continuous with each other with respect to the front surfaces of the upper main body 62 and the lower main body 67 without forming a step.

In this embodiment, the protrusion length (dimension in the width direction) at which the upper protrusion 63 and the lower protrusion 68 protrude from the positions of the inner side surfaces of the upper main body 62 and the lower main body 67 in the tape width direction is determined. It is set to be equal to or larger than the width of the upper flange portion 35 and the lower flange portion 36 of the slider 30 (that is, the distance between the inner wall surface and the outer wall surface of the upper flange portion 35 and the lower flange portion 36).

At one end of the upper protruding portion 63 and the lower protruding portion 68 in the length direction, a contact rear end portion 71 for contacting the upper flange portion 35 and the lower flange portion 36 of the slider 30 is provided. The contact rear end 71 of each of the upper protruding portion 63 and the lower protruding portion 68 is viewed from the side, for example, when the right stop portion 60 is viewed from the tape inner side of the right fastener stringer 10b (the tape main portion side of the fastener tape 11). FIG. 7 has a shape in which the height dimensions of the upper protruding portion 63 and the lower protruding portion 68 are reduced toward the rear.

In this case, the respective contact rear end portions 71 have a convex curved surface 72 formed continuously from the upper surface of the upper protruding portion 63 or the lower surface of the lower protruding portion 68, and extend from the convex curved surface 72 toward the fastener tape 11. It has a concave contact inclined surface 73, and an auxiliary inclined surface 74 arranged between the contact inclined surface 73 and the fastener tape 11 and inclined at an angle different from that of the contact inclined surface 73.

In this case, the convex curved surface 72 of each contact rear end portion 71 forms a ridge line portion that is a boundary between the upper surface of the upper protrusion portion 63 and the contact inclined surface 73. In the present invention, the upper surface of the upper protruding portion 63 and the contact inclined surface 73 may be connected via a bent portion (corner portion) without providing the convex curved surface 72 as in the present embodiment.

The upper and lower contact inclined surfaces 73 are smoothly continuous with the convex curved surface 72 and the auxiliary inclined surface 74, and are formed on a curved surface that exhibits a gentle concave shape in the side view of the stop portion 60. Since the contact inclined surface 73 is a concave curved surface in this way, the contact inclined surface 73 can be made difficult to see when the upper protruding portion 63 and the lower protruding portion 68 are viewed from the front and back sides of the tape. , The upper and lower contact rear end portions 71 can be made relatively inconspicuous.

In this case, the height position of the upper contact inclined surface 73 from the tape surface is 40% or more and 100% when the height range from the tape surface of the fastener tape 11 to the upper surface of the upper protruding portion 63 is 100%. It is preferably arranged in a region of less than 50% or more and 90% or less. Similarly, the lower contact inclined surface 73 also has a height position from the back surface of the tape of 40% or more and less than 100% with respect to the height range from the back surface of the tape of the fastener tape 11 to the lower surface of the lower protrusion 68. The region is preferably arranged in the range of 50% or more and 90% or less.

In this embodiment, the height dimension H1 in the front-back direction from the front end position of the upper contact inclined surface 73 of the right side stop portion 60 to the front end position of the lower contact inclined surface 73 is the tape of the slider 30 as shown in FIG. The interval of the insertion gap 38 (height dimension of the interval between the upper flange portion 35 and the lower flange portion 36) is set to be larger than D1. Further, the height dimension H2 in the front-back direction from the rear end position of the upper contact inclined surface 73 to the rear end position of the lower contact inclined surface 73 is set smaller than the distance D1 of the tape insertion gap 38 of the slider 30. There is.

By setting the range of the upper and lower contact inclined surfaces 73 in the height direction with respect to the slider 30 in this way, the upper flange portion 35 and the lower flange portion 36 of the slider 30 are brought into contact with each other in the vertical direction of the stop portion 60. It is possible to stably contact each of the inclined surfaces 73. In this case, the front end position of the upper and lower contact inclined surfaces 73 is a position at the boundary between the convex curved surface 72 and the contact inclined surface 73 at the contact rear end portion 71, and the rear end position of the upper and lower contact inclined surfaces 73 is , The position at the rear end of the contact 71, which is the boundary between the contact inclined surface 73 and the auxiliary inclined surface 74. When the convex curved surface 72 is not provided, the position at the boundary between the upper surface of the upper protruding portion 63 and the contact inclined surface 73 is the front end position.

Further, when a virtual tilt straight line L1 is formed so as to connect the front end position and the rear end position of each of the upper and lower contact inclined surfaces 73 in the side view (FIG. 7) of the right side stop portion 60, each virtual inclination is formed. The upper and lower contact inclined surfaces 73 so that the straight line L1 forms an inclination angle θ of 30 ° or more and 80 ° or less, preferably 40 ° or more and 70 ° or less, with respect to the tape front surface or the tape back surface of the fastener tape 11. Is formed.

As a result, the contact rear end portions 71 of the upper protruding portion 63 and the lower protruding portion 68 are prevented from becoming longer in the length direction, and the upper flange portion 35 and the lower flange portion that are in contact with the upper and lower contact inclined surfaces 73 are suppressed. As shown in FIG. 9, the 36 can be appropriately guided to the positions corresponding to each other of the upper protrusion 63 and the lower protrusion 68 so as to be brought into contact with each other evenly.

The upper and lower contact inclined surfaces 73 in this embodiment are formed on a curved surface that curves in a concave shape as described above, but in the present invention, the height dimensions of the upper protruding portion and the lower protruding portion are directed rearward. It may be formed on a flat surface that gradually decreases at a constant rate. Further, in the present invention, when the contact inclined surface is formed as a curved surface as in the present embodiment, the inclination angle θ of the contact inclined surface is such that the virtual inclined straight line L1 is inclined with respect to the tape surface of the fastener tape. Say the angle.

The upper and lower auxiliary inclined surfaces 74 are formed on a flat surface that is inclined at a constant inclination angle with respect to the tape front surface or the tape back surface of the fastener tape 11. In this case, the upper and lower auxiliary inclined surfaces 74 have an inclination angle of the fastener tape 11 with respect to the tape front surface or the tape back surface of the right side stop portion 60 (FIG. 7) of the virtual inclined straight line L1 on the contact inclined surface 73 described above. It is formed so that the inclination angle is θ or more and less than 90 °.

As a result, the strength of each contact rear end portion 71 of the upper protruding portion 63 and the lower protruding portion 68 can be appropriately secured, and the upper protruding portion 63 and the lower protruding portion 68 can be prevented from peeling off from the fastener tape 11. Further, for example, the positions of the upper flange portion 35 and the lower flange portion 36 of the slider 30 are displaced in the height direction with respect to the upper protruding portion 63 and the lower protruding portion 68 of the stop portion 60, and the upper flange portion 35 or the lower flange Even when the portion 36 comes into contact with either the upper or lower auxiliary inclined surface 74, the upper flange portion 35 or the lower flange portion 36 of the slider 30 is appropriately directed toward the contact inclined surface 73 along the contacted auxiliary inclined surface 74. It becomes possible to guide.

In the present invention, the auxiliary inclined surface 74 may be formed not as a flat surface but as a concave curved surface such as a contact inclined surface 73 or a convex curved surface. Further, the contact inclined surface 73 inclined at a constant angle (ratio) may be continuously formed up to the fastener tape 11 without providing the auxiliary inclined surface 74 at the contact rear end portion 71.

The left side stopper 50 of this embodiment has a stopper upper half 51 and a stopper lower half having shapes symmetrical to each other with respect to a reference surface located at the center in the height direction of the fastener tape 11. In this embodiment, the stopping upper half 51 and the stopping lower half of the left stopping portion 50 are smaller in length than the stopping upper half 61 and the stopping lower half 66 of the right stopping portion 60. However, except for the length dimension, it is formed in a form symmetrical in the left-right direction with respect to the upper half portion 61 for stopping and the lower half portion 66 for stopping of the right side stopping portion 60. Therefore, a specific description of the left side stop portion 50 of this embodiment will be omitted.

In this embodiment, the form of the left stop portion 50 is not particularly limited and can be arbitrarily changed. Further, in the slide fastener 1 of the present invention, instead of installing the above-mentioned upper protrusion 63 and lower protrusion 68 only on the right stop 60 as in the present embodiment, for example, the upper protrusion and the lower protrusion are provided. It is possible to install it only on the left side stop without installing it on the right side stop, and it is also possible to install the upper protrusion and the lower protrusion on both the right side stop and the left side stop. ..

In the slide fastener 1 of the present embodiment as described above, the slider 30 is slid toward the left and

right stop portions

50 and 60 in the closing direction (front) of the element row 12, so that the upper main body portion of the right stop portion 60 is formed. 62, the lower main body portion 67, and the left side stop portion 50 are inserted into the element guide path from the left and right shoulder openings of the slider 30, and the upper flange portion 35 and the lower flange portion 36 of the slider 30 are inserted into, for example, FIG. As shown in the above, the slider 30 can be stopped by contacting the upper protruding portion 63 and the lower protruding portion 68 of the right side stop portion 60, respectively.

In particular, at this time, in the present embodiment, the height dimension from the front end position of the upper contact inclined surface 73 of the right side stop portion 60 to the front end position of the lower contact inclined surface 73 is determined by measuring the tape insertion gap of the slider 30 as described above. Since it is larger than 38, the upper flange portion 35 and the lower flange portion 36 of the slider 30 can be stably brought into contact with the upper protruding portion 63 and the lower protruding portion 68 of the right side stop portion 60. Further, since the contact inclined surfaces 73 of the upper protruding portion 63 and the lower protruding portion 68 are formed on the concave curved surface, the upper flange portion 35 and the lower flange portion 36 of the slider 30 are formed on the upper and lower contact inclined surfaces 73. Can be properly accepted. As a result, the slider 30 can be stably prevented from falling out of the element row 12.

Further, by bringing the slider 30 into contact with the right side stop portion 60 as described above, for example, as shown in FIG. 2, a part of the front end portions of the upper main body portion 62 and the lower main body portion 67 of the right side stop portion 60 is removed. The portion to be removed and the portion of the left stop portion 50 excluding a part of the front end portion can be concealed and accommodated inside the slider body 31. Therefore, in the slide fastener 1 of the present embodiment, for example, when compared with the fasteners of Patent Documents 2 and 3 in which a part of the stopper portion is brought into contact with the upper and lower wing plates of the slider, the slider 30 Since the regions of the

stoppers

50 and 60 exposed from the surface can be kept small, the appearance quality of the slide fastener 1 when the element row 12 is closed can be improved.

Further, in the slide fastener 1 of the present embodiment, for example, by sliding the slider 30, the upper flange portion 35 and the lower flange portion 36 of the slider 30 and the upper protruding portion 63 and the lower protruding portion 68 of the right stop portion 60 In a state where the positional relationship in the height direction is deviated, specifically, the fastener tape 11 is not arranged at the center portion in the height direction between the upper flange portion 35 and the lower flange portion 36 of the slider 30, and the central portion thereof. The slider 30 may come into contact with the right stop portion 60 while the fastener tape 11 is arranged at a position close to the upper flange portion 35 or the lower flange portion 36.

Even in such a displaced state, the slide fastener 1 of the present embodiment is provided with the contact inclined surface 73 and the auxiliary inclined surface 74 as described above at the contact rear end portion 71 of the right side stop portion 60. Therefore, when the slider 30 comes into contact with the right side stop portion 60, the upper flange portion 35 and the lower flange portion 36 of the slider 30 are attached to the right side stop portion 60 with respect to the contact inclined surface 73 of the right side stop portion 60 and the auxiliary. Positions where the upper flange portion 35 and the lower flange portion 36 are evenly contacted with the upper protruding portion 63 and the lower protruding portion 68 of the right stop portion 60 by moving relative to the inclined surface 74 (that is, in FIG. 9). It is possible to guide to the position as shown). In other words, the upper flange portion 35 and the lower flange portion 36 of the slider 30 can be guided to a position where the fastener tape 11 is arranged at the center portion in the height direction between the upper flange portion 35 and the lower flange portion 36.

Further, in this embodiment, in a state where the slider 30 is in contact with the right side stopper 60, for example, the upper flange portion 35 and the lower flange portion 36 of the slider 30 are the upper protrusion 63 and the lower protrusion 68 of the right side stopper 60. Even when a force for pushing is applied, the upper flange portion 35 and the lower flange portion 36 can be smoothly guided to the above-mentioned predetermined positions along the contact inclined surface 73 and the auxiliary inclined surface 74.

As a result, the upper flange portion 35 and the lower flange portion 36 of the slider 30 can be evenly and stably contacted (hooked) with the upper protruding portion 63 and the lower protruding portion 68 of the right side stop portion 60. As a result, the posture of the right stop portion 60 with respect to the slider 30 can be made difficult to tilt.

Therefore, in the slide fastener 1 of the present embodiment, it is possible to prevent a part of the stop portion 60 from entering between the upper flange portion 35 and the lower flange portion 36 due to the inclination of the posture of the right stop portion 60. Therefore, it is possible to stably obtain a vertical pulling strength larger than that of the conventional slide fastener.

Moreover, in the slide fastener 1 of the present embodiment, the protruding portions (see FIGS. 12 and 13) arranged on the left and

right stopper portions

50 and 60, for example, the stopper portions of Patent Documents 2 and 3 (see FIGS. 12 and 13). That is, there is no protrusion) that protrudes in the front and back directions of the tape in order to bring it into contact with the slider. Therefore, the appearance quality of the slide fastener 1 and the appearance quality of products such as clothes to which the slide fastener 1 is attached can be improved. In addition, the touch of the right side stopper 60 can be improved.

In the slide fastener 1 of the above-described embodiment, a slider 30 having a slightly larger distance (tape insertion gap 38) between the upper flange portion 35 and the lower flange portion 36 is attached to the element row 12. However, in the present invention, instead of the slider 30 of this embodiment, for example, a slider 30a having a small tape insertion gap 38a between the upper flange portion 35 and the lower flange portion 36 as shown in FIG. 10 is used to form the slide fastener. It is also possible. The slider 30a shown in FIG. 10 is formed in the same manner as the slider 30 of the above-described embodiment except that the tape insertion gap 38a is reduced.

Even if the slider 30a has such a small tape insertion gap 38a, the upper flange portion 35 and the lower flange portion 36 of the slider 30a can be replaced with the upper protruding portion 63 and the upper protruding portion 63 of the right side stopper 60, as in the case of the above embodiment. Since the slider 30a can be stably brought into contact with the lower protrusion 68, it is possible to prevent the slider 30a from falling off from the element row 12.

Further, the upper flange portion 35 and the lower flange portion 36 of the slider 30a are in contact with the upper protruding portion 63 and the lower protruding portion 68 of the right side stop portion 60 with their positions in the height direction shifted upward or downward. Even in this case, the upper flange portion 35 and the lower flange portion 36 of the slider 30a are relatively moved along the contact inclined surface 73 and the auxiliary inclined surface 74 of the right side stop portion 60, and the upper flange portion 63 and the lower protrusion are respectively moved. It can be brought into contact with the portion 68 evenly and stably. Therefore, even when the slider 30a shown in FIG. 10 is used, a large vertical pull strength can be obtained.

Further, in the case of the slide fastener 1 of the above-described embodiment, the upper half portion 61 for stopping and the lower half portion 66 for stopping of the right side stopping portion 60 have symmetrical shapes on the front and back sides. However, in the present invention, it is also possible to form the right stop portion so that the upper half portion for stopping having the upper protruding portion and the lower half portion for stopping having the lower protruding portion have an asymmetrical shape in the front and back directions. Is. In this case, the contact inclined surface arranged on the upper protruding portion and the contact inclined surface arranged on the lower protruding portion are preferably formed in a shape symmetrical to each other, whereby the slider 30 It is possible to facilitate the upper flange portion 35 and the lower flange portion 36 to be evenly contacted with the upper protruding portion and the lower protruding portion of the stop portion.

1 Slide fastener 10a Left fastener stringer 10b Right fastener stringer 11 Fastener tape 11a Core cord 12 Element row 20 Fastener element 21 Element center (center land)
21a Central upper half 21b Central lower half 22 Upper bulge (first bulge)
23 Lower bulge (second bulge)
24 Element body 25 Neck 26 Engagement head 27 Protruding end surface 27a Base end surface 27b Protruding

end surface

30, 30a Slider 31 Slider body 32 Puller 33 Upper wing plate 34 Lower wing plate 35 Upper flange part 36 Lower flange part 37

Puller mounting part

38 , 38a Tape insertion gap 50 Left stop (top stop)
51 Upper half for stopping 60 Right stopping part (upper stopping part)
61 Upper half for stopping 62 Upper body (upper body for stopping)
62a Concave surface 62b Main upper surface (first upper surface)
62c Opposed inclined upper surface (second upper surface)
63 Upper protrusion (upper protrusion for stopping)
66 Lower half for stopping 67 Lower body (lower body for stopping)
67a Concave surface 67b Main lower surface (first lower surface)
67c Opposed inclined lower surface (second lower surface)
68 Lower protrusion (lower protrusion for stopping)
71 Rear end of contact 72 Convex curved surface 73 Contact inclined surface 74 Auxiliary inclined surface H1 Height dimension from the front end position of the upper contact inclined surface to the front end position of the lower contact inclined surface H2 Lower side from the rear end position of the upper contact inclined surface Height dimension to the rear end position of the contact inclined surface D1 Slider tape insertion gap spacing (height dimension of the gap between the upper flange and lower flange)
L1 Virtual inclined straight line connecting the front end position and the rear end position of the contact inclined surface θ Inclined angle of the inclined straight line connecting the front end position and the rear end position of the contact inclined surface with respect to the tape front surface or the tape back surface

Claims

A pair of left and right fastener stringers (10a, 10b) provided with an element row (12) on the tape side edge of the fastener tape (11), and a slider (30, 30a) sliding along the element row (12). At least one of the left and right fastener stringers (10a, 10b) is arranged adjacent to the front end portion which is the end portion of the element row (12) on the closing direction side (60). The slider (30, 30a) has an upper wing plate (33), a lower wing plate (34) arranged apart from the upper wing plate (33), the upper wing plate (33), and the upper wing plate (33). A connecting column connecting one ends of the lower wing plate (34) and left and right upper flange portions extending from the left and right side edges of the upper wing plate (33) toward the lower wing plate (34). In the slide fastener (1) having the 35) and the left and right lower flange portions (36) extending from the left and right side edges of the lower wing plate (34) toward the upper wing plate (33).
The stopper (60) is an upper half portion (61) arranged on the tape upper surface side of the fastener tape (11) and a lower half portion (66) arranged on the tape lower surface side of the fastener tape (11). And have
The upper half portion (61) has an upper main body portion (62) fixed to the fastener tape (11) and an upper main body portion (63) protruding from the upper main body portion (62) in the tape width direction. And
The lower half portion (66) includes a lower main body portion (67) fixed to the fastener tape (11) and a lower main body portion (68) protruding from the lower main body portion (67) in the tape width direction. And have
The dimensions of the upper main body (62) and the lower main body (67) in the tape width direction and the height direction are set to a size that allows the shoulder opening of the slider (30, 30a) to be inserted.
The upper protruding portion (63) and the lower protruding portion (68) are contact rear ends (71) for contacting the upper flange portion (35) or the lower flange portion (36) of the slider (30, 30a). )
Each contact rear end (71) has a contact inclined surface (73) that reduces the height dimension of the upper protrusion (63) or the lower protrusion (68) in the height direction.
The dimension (H1) in the height direction from the front end position of the contact inclined surface (73) in the upper protruding portion (63) to the front end position of the contact inclined surface (73) in the lower protruding portion (68) is A slide fastener characterized in that it is larger than the distance (D1) between the upper flange portion (35) and the lower flange portion (36) of the slider (30, 30a).
The slide fastener according to claim 1, wherein the contact inclined surface (73) of the contact rear end portion (71) is formed on a concave curved surface.
The contact rear end portion (71) is arranged between the contact inclined surface (73) and the fastener tape (11), and an auxiliary inclined surface (74) that reduces the dimension in the height direction toward the rear. The slide fastener according to claim 1 or 2.
The upper surface of the upper protruding portion (63) and the lower surface of the lower protruding portion (68) are formed on a flat surface continuous from the upper surface of the upper main body portion (62) or the lower surface of the lower main body portion (67). The slide fastener according to any one of claims 1 to 3.
The upper surface of the upper main body (62) and the lower surface of the lower main body (67) have dimensions in the height direction of the upper main body (62) or the lower main body (67) in the width direction. The slide fastener according to any one of claims 1 to 4, which has an opposed inclined surface (62c, 67c) that decreases in a direction away from the upper protruding portion (63) or the lower protruding portion (68).