WO2012105025A1

WO2012105025A1 - Slide fastener

Info

Publication number: WO2012105025A1
Application number: PCT/JP2011/052275
Authority: WO
Inventors: 志宇任
Original assignee: Ykk株式会社
Priority date: 2011-02-03
Filing date: 2011-02-03
Publication date: 2012-08-09
Also published as: CN103220930A; CN103220930B; TWI472306B; TW201233356A

Abstract

The slide fastener is provided with: a pair of fastener tapes (2); multiple links (3) that are fixed along the longitudinal direction of the fastener tapes (2) and have a groove (34) for accommodating the opposite fastener tape (2) therein; and a slider (4) that engages or separates the multiple links (3). The multiple links (3) are provided with a front surface part (31) and a back surface part (32), which are disposed so as to be shifted from each other in the longitudinal direction of the fastener tape (2) with the fastener tape (2) therebetween. The front surface part (31) and the back surface part (32) are provided with convex engaging parts (311, 321) and concave engaging parts (312, 322). When the multiple links (3) are engaged, the multiple links (3) are disposed in a line along the longitudinal direction of the fastener tapes (2). Between the fastener tapes (2), the multiple links (3) are disposed with axial symmetry with respect to a center line (A), which passes through the convex engaging parts (311, 321) and the concave engaging parts (312, 322).

Description

Slide fastener

The present invention relates to a slide fastener.

A slide fastener has a plurality of service teeth attached to opposite tape side edges of two tapes, a slider is inserted into the service tooth row, and the service tooth row is slid along the service tooth row. Are engaged or separated. As such a slide fastener, for example, in Japanese Utility Model Publication No. 30-15033, service teeth (links) provided with grooves for accommodating two fastener tapes on both sides are arranged on the fastener tape. A fastener is described in which the engagement teeth are arranged in a line at the boundary between two fastener tapes when meshing. By arranging the service teeth in a row on the fastener tape, a beautiful appearance can be obtained as compared with a general slide fastener in which the service teeth are arranged in 2 rows.

However, in Japanese Utility Model Publication No. 30-15033, a plurality of dentitions are fixed to each other by a minute spherical piece provided on each tooth and a spherical recess provided corresponding to the spherical piece. Therefore, when force that pushes up the fastener tape from the back side of the fastener tape is applied, the strength is insufficient, and the spherical piece and the spherical concave portion that are the fixing parts are damaged, or the engagement between the engagement teeth is lost and the appearance is impaired. There was a case.

Utility model publication No. 30-15033

The present invention provides a slide fastener that has high strength, is difficult to disengage from each other, and has an improved aesthetic appearance.

In order to solve the above-described problems, in one aspect of the present invention, a pair of fastener tapes facing each other, and the other fastener tape that is fixed along the longitudinal direction of the fastener tape and that faces the fixed fastener tape are contained inside. A plurality of service teeth having grooves for receiving and a slider for meshing or separating the plurality of service teeth, each of the plurality of service teeth being a surface portion disposed on the surface of the fastener tape and the back surface of the fastener tape The front surface portion and the back surface portion are arranged to be shifted from each other in the longitudinal direction of the fastener tape with the fastener tape interposed therebetween, and each of the front surface portion and the back surface portion is disposed in the longitudinal direction of the fastener tape. The projecting mesh convex part and the convex projecting part of the other engaging tooth that is formed in a concave shape in the longitudinal direction of the fastener tape and adjacent to the engaging tooth A plurality of engagement teeth arranged in a line along the longitudinal direction of the fastener tape, and a plurality of engagement teeth between the pair of fastener tapes. However, when viewed from the front surface or the back surface of the fastener tape, a slide fastener is provided that is arranged symmetrically about a line passing through the meshing convex portion and the meshing concave portion.

In one embodiment, the slide fastener according to the present invention is arranged symmetrically about a line passing through the meshing convex part and the meshing concave part when the entire shape of the plurality of engagement teeth is viewed from the front surface or the back surface of the fastener tape. Yes.

In another embodiment of the slide fastener according to the present invention, the front surface portion and the back surface portion have the same shape when viewed from the front surface or the back surface of the fastener tape.

In yet another embodiment of the slide fastener according to the present invention, the engagement convex portions of the plurality of engagement teeth are in the direction in which the engagement engagement portions of the plurality of engagement teeth are engaged, that is, in the direction of operating the slider when closing the slide fastener. It is placed at the front end.

In yet another embodiment of the slide fastener according to the present invention, the planar view shape of the plurality of engagement teeth includes any of a heart shape, a star shape, a V shape, and a spine shape.

According to the present invention, it is possible to provide a slide fastener that is high in strength, hard to disengage from the teeth, and has an improved aesthetic appearance.

FIG. 1A is a top view showing an example of a slide fastener according to an embodiment of the present invention. FIG. 1B is a cross-sectional view showing an example of a slide fastener according to an embodiment of the present invention. FIG. 2 is a perspective view showing an example of a tooth according to an embodiment of the present invention. FIG. 3 is a cross-sectional view showing a state in which the engagement teeth according to the embodiment of the present invention are fixed to the fastener tape. FIG. 4 is a side view showing an example of a tooth according to an embodiment of the present invention. FIG. 5 is a top view showing an example of a state in which the slide fastener according to the embodiment of the present invention is closed. FIG. 6A is a top view showing an example of a slide fastener when a star-shaped engagement tooth is used. FIG. 6B is a top view showing an example of a slide fastener when a V-shaped (substantially triangular) engagement tooth is used. FIG. 6C is a top view showing an example of a slide fastener in the case where spine-shaped teeth are used. FIG. 6D is a top view showing an example of a slide fastener when an asymmetrical tooth is used.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. The embodiments described below exemplify apparatuses and methods for embodying the technical idea of the present invention. The technical idea of the present invention is the structure, arrangement, material, etc. of the component parts described below. It is not something specific.

As shown in FIGS. 1A and 1B, a slide fastener 1 according to an embodiment of the present invention includes a pair of

fastener tapes

2 and 2 facing each other and a plurality of

fastener tapes

2 and 2 fixed along the longitudinal direction of the

fastener tapes

2 and 2. And a slider 4 that meshes or separates the plurality of service teeth 3. In FIG. 1A, only the body portion of the slider 4 is disclosed for convenience, but it is needless to say that the body portion may be provided with a handle and a holding portion for holding the handle. Of course, a bottom stop (not shown) may be disposed at one end of the row of service teeth 3, and a top stop (not illustrated) may be disposed at the other end of the row of service teeth 3. .

The

fastener tapes

2 and 2 are made of a band-shaped material woven or knitted with synthetic fibers or natural fibers, and the

winding cores

5 and 5 are disposed along the tape side edge 2 a extending in the longitudinal direction of the

fastener tapes

2 and 2. Has been placed. The plurality of service teeth 3 are arranged along the tape side edge portion 2a of the fastener tape 2 so as to be spaced apart from each other by a fixed distance (distance that sandwiches the other service teeth 3 therebetween). The plurality of service teeth 3 are made of, for example, resin and are fixed to the fastener tape 2 by injection molding. As shown in FIGS. 2 and 3, each of the plurality of engagement teeth 3 accommodates the winding core 5 and the fastener tape 2 inside, and a tape accommodating portion 33 disposed along the longitudinal direction of the fastener tape 2. And a groove 34 disposed along the longitudinal direction of the fastener tape 2 on the side surface opposite to the tape housing portion 33 in the width direction of the engagement tooth 3, that is, in the direction orthogonal to the longitudinal direction of the fastener tape 2. The groove 34 accommodates the other fastener tape 2 on the side facing the fastener tape 2 on the side to which the engagement teeth 3 are fixed. As shown in FIG. 3, the groove 34 includes a bottom 34 a for accommodating the winding core 5 of the fastener tape 2, and a groove main body 34 b formed so as to gradually spread from the bottom 34 a in the thickness direction of the engagement tooth 3. Consists of

As shown in FIG. 4, the tooth 3 has a tape housing portion 33 and a groove 34 (not shown) as its boundaries, and the surface portion 31 and the

fastener tapes

2, 2 disposed on the surfaces of the

fastener tapes

2, 2. A back surface portion 32 is provided on the back surface. In the example shown in FIG. 1A, the planar view shape of the plurality of engagement teeth 3 has a heart shape. In order to reduce a sense of incongruity when the user touches the service tooth 3, the end of the service tooth 3 may be chamfered (rounded). As shown in FIG. 1A, each of the front surface portion 31 and the back surface portion 32 is formed with a meshing

convex portion

311, 321 protruding in the longitudinal direction of the

fastener tape

2, 2 and a concave shape in the longitudinal direction of the

fastener tape

2, 2. The meshing recesses 312 and 322 are provided.

At the time of meshing, the meshing

convex portions

311 and 321 of one service tooth mesh with the meshing recesses 312 and 322 of the other service tooth, and the other service tooth 3 adjacent to the

meshing recess

312 and 322 of the one service tooth 3. The meshing

convex portions

311 and 321 mesh with each other so that the plurality of engagement teeth 3 are arranged on the

fastener tapes

2 and 2 in a line. In this embodiment, since the groove angle a1 of the meshing recesses 312 and 322 is formed sufficiently larger than the angle b1 formed by the meshing

projections

311 and 321, a minute spherical spherical piece and a spherical recess as in the prior art. Than the case where the engagement teeth 3 are engaged with each other, the engagement between the engagement teeth 3 is easier, and the engagement deviation that occurs when the engagement is insufficient can be suppressed.

The engagement

convex portions

311 and 321 are ends in the direction in which the plurality of engagement teeth 3 are engaged, that is, the direction in which the slider 4 is slid in the longitudinal direction of the

fastener tapes

2 and 2 to close the slide fastener 1 (the paper surface of FIG. 1A). It is preferable to dispose them at the end portions of the service teeth 3 on the side facing the upward direction. On the contrary, the meshing recesses 312 and 322 are ends in the direction in which the plurality of engagement teeth 3 are separated, that is, the direction in which the slider 4 is slid in the longitudinal direction of the

fastener tapes

2 and 2 to open the slide fastener 1 (FIG. 1A). It is preferable to dispose at the end of the engagement tooth 3 on the side facing the lower side of the sheet. In general, the slider 4 has a smaller width d3 at the end toward the closing direction of the slide fastener 1 than the width d4 at the end toward the opening direction of the slide fastener 1. For this reason, by making the positional relationship between the meshing

convex portions

311 and 321 and the meshing

concave portions

312 and 322 the above relationship (see FIG. 1A), the slider 4 can be meshed and separated more smoothly.

As shown in FIG. 1B or FIG. 4, the front surface portion 31 and the back surface portion 32 are preferably arranged so as to be shifted from each other in the longitudinal direction of the

fastener tapes

2 and 2 with the

fastener tapes

2 and 2 interposed therebetween. That is, when the service teeth 3 are engaged, the surface portion 31 of one service tooth 3 overlaps with the back surface portion 32 of the adjacent service tooth 3 in the thickness direction of the slide fastener, and the back surface portion 32 corresponds to the adjacent service tooth 3. It is preferable to have a portion that overlaps the surface portion 31 and the slide fastener thickness direction. As a result, when a force that pushes up the fastener tape from the back side or the surface of the fastener tape is applied, the portions of the front surface portion 31 and the back surface portion 32 that are displaced from each other receive the force applied from the outside. As compared with the above, the strength is increased, and the engagement teeth 3 are not easily detached. The front surface portion 31 may protrude from the back surface portion 32 on the

fastener tapes

2 and 2 in a direction in which the plurality of engagement teeth 3 are engaged (upward in the drawing in FIG. 1A).

The front surface portion 31 and the back surface portion 32 preferably have the same shape in plan view when viewed from the front surface or the back surface of the

fastener tapes

2 and 2. Thereby, when meshing the plurality of engagement teeth 3, an excellent appearance is obtained on both the front and back surfaces of the

fastener tapes

2 and 2. “Same shape in plan view” means that when the top surface 31 of the engagement tooth 3 and the

top surfaces

3a and 3b (see FIG. 4) of the back surface portion 32 are observed from the front surface side or the back surface side of the

fastener tapes

2 and 2, It means that the external shape is substantially the same. The thickness of the front surface portion 31 and the back surface portion 32 (thickness along the

fastener tape

2, 2 front and back direction) may be the same or different.

FIG. 5 is a top view showing an example in which a plurality of engagement teeth 3 are engaged. The meshing

convex portions

311 and 321 and the meshing

concave portions

312 and 322 are arranged in a straight line between the

fastener tapes

2 and 2. Further, when viewed from the front surface or the back surface of the

fastener tapes

2, 2, the plurality of engagement teeth 3 are at least between the pair of fastener tapes 2, 2 (space B shown in FIG. 5). It is preferable that they are arranged symmetrically about the line A passing through 312 and 322. As a result, the engagement teeth 3 can be easily engaged by the slider as a slide fastener.

In this embodiment, it is sufficient that the service teeth 3 in the space B (between the fastener tapes 2 and 2) are arranged symmetrically about the line A, and the overall shape of the service teeth 3 is not particularly limited. For example, a small protrusion or the like may be formed only on a part of the service tooth 3, or a decorative part may be attached to a part of the service tooth 3. In order to increase the strength of the slide fastener 1, strengthen the engagement between the engagement teeth 3, and improve the aesthetic appearance, the overall shape of the engagement teeth 3 when viewed from the front surface or the back surface of the

fastener tape

2, 2 is the engagement convexity. More preferably, they are arranged symmetrically about the line A passing through the

portions

311 and 321 and the meshing recesses 312 and 322.

When manufacturing the slide fastener according to the embodiment, for example, a pair of

fastener tapes

2 and 2 are prepared, and a plurality of engagement teeth 3 are separated from each other by a predetermined distance on the tape side edge 2a of the

fastener tapes

2 and 2, respectively. Then, the plurality of service teeth 3 are fixed by injection molding. Thereafter, if necessary, an upper stop and a lower stop are disposed, and the slider 4 may be attached on the service tooth 3.

(Other embodiments)
Although the embodiments of the present invention have been described as described above, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. For example, in the above-described embodiment, an example in which the planar view shape of the plurality of service teeth 3 is a heart shape is shown, but the planar view shape of the service teeth 3 is not limited thereto. For example, as shown in FIG. 6A, the plan view shape of the service tooth 3 may be a star shape, or as shown in FIG. 6B, the service tooth 3 may be V-shaped (similar to a triangle). Good. Further, as shown in FIG. 6C, the tooth 3 is composed of a linear portion 316 parallel to each other and a meshing convex portion 311 and a meshing concave portion 312 protruding from the end in the direction in which the tooth 3 is meshed (this embodiment). May be referred to as a “vertebral shape”. As illustrated in FIG. 6D, a shape in which the overall shape having the notch portion 317 in a part of the tooth 3 is not line symmetric with respect to the axis A may be employed.

Further, in the example shown in FIG. 1A, an example in which the sizes of the plurality of service teeth 3 are all the same is shown, but the service teeth 3 having different sizes may be combined. For example, a plurality of service teeth 3 having two sizes of large and small, or a plurality of service teeth 3 having three sizes of large, medium, and small may be prepared and combined. As described above, the present invention naturally includes various modes that are not explicitly described herein, and can be embodied by being modified without departing from the scope of the invention when it is practiced.

DESCRIPTION OF SYMBOLS 1 ... Slide fastener 2 ... Fastener tape 3 ... Teeth 4 ... Slider 5 ... Winding core 31 ... Surface part 32 ... Back surface part 33 ... Tape accommodating part 34 ...

Groove

311, 321 ... Engagement

convex part

312, 322 ... Engagement recessed part

Claims

A pair of fastener tapes (2) facing each other;
A plurality of service teeth having a groove (34) that is fixed along the longitudinal direction of the fastener tape (2) and that accommodates the other fastener tape (2) facing the fixed fastener tape (2). (3) and
A slider (4) for meshing or separating the plurality of engagement teeth (3),
Each of the plurality of service teeth (3) includes a front surface portion (31) disposed on the surface of the fastener tape (2) and a back surface portion (32) disposed on the back surface of the fastener tape (2). The front surface portion (31) and the back surface portion (32) are arranged so as to be shifted from each other in the longitudinal direction of the fastener tape (2) with the fastener tape (2) interposed therebetween, and the front surface portion (31) and the back surface portion Each of (32) is formed with a meshing projection (311, 321) projecting in the longitudinal direction of the fastener tape (2) and a concave shape in the longitudinal direction of the fastener tape (2), and the engagement tooth (3) A meshing recess (312, 322) that meshes with a meshing projection (311, 321) of another service tooth (3) that is adjacent when meshing,
When the plurality of engagement teeth (3) are engaged, the plurality of engagement teeth (3) are arranged in a line along the longitudinal direction of the fastener tape (2), and the pair of fastener tapes (2 ) Between the engagement protrusions (311 and 321) and the engagement recesses (312 and 322) when the plurality of engagement teeth (3) are viewed from the front or back surface of the fastener tape (2). (A) The slide fastener characterized by being arrange | positioned symmetrically about the center.
Lines passing through the meshing convex portions (311 and 321) and the meshing concave portions (312 and 322) when the overall shape of the plurality of engagement teeth (3) is viewed from the front surface or the back surface of the fastener tape (2) ( The slide fastener according to claim 1, wherein the slide fastener is arranged symmetrically about A).
The slide fastener according to claim 1 or 2, wherein the front surface portion (31) and the back surface portion (32) have the same shape when viewed from the front surface or the back surface of the fastener tape (2).
The meshing protrusion (311, 321) of the plurality of service teeth (3) is disposed at an end portion in a direction in which the plurality of service teeth (3) are engaged with each other. The described slide fastener.
The slide fastener according to any one of claims 1 to 4, wherein a planar view shape of the plurality of service teeth (3) includes any one of a heart shape, a star shape, a V shape, and a spine shape.