WO2013108632A1

WO2013108632A1 - Slider, slider zipper tape, and packaging bag with slider

Info

Publication number: WO2013108632A1
Application number: PCT/JP2013/000228
Authority: WO
Inventors: 修一後藤
Original assignee: 出光ユニテック株式会社
Priority date: 2012-01-20
Filing date: 2013-01-18
Publication date: 2013-07-25
Also published as: JP2013146462A

Abstract

A slider (10A) attached to a zipper tape (40A) for causing a mouth section (110) of a packaging bag (100A) to open and close by moving along the tape lengthwise direction, wherein: guide ridges (23, 33) are formed on the zipper tape (40A), the guide ridges being for guiding the movement of the slider (10A) along the lengthwise direction of the tape; the slider (10A) is provided with guided sections (12a, 12b) for engaging with the guide ridges (23, 33); the guide ridges (23, 33) and the guided sections (12a, 12b) have a hook-like cross-sectional shape able to engage in a mutually latching manner; and the movement of the slider (10A) along the tape lengthwise direction is conducted with the guided sections (12a, 12b) and guide ridges (23, 33) engaged.

Description

Slider, zipper tape for slider, and packaging bag with slider

The present invention relates to a slider, a zipper tape for a slider, and a packaging bag with a slider, and more particularly to a slider, a zipper tape for a slider, and a packaging bag with a slider, which have improved mounting properties to the packaging bag.

Conventionally, there is a packaging bag with a slider as a container for storing contents such as food.
In such a packaging bag, the mouth of the packaging bag can be closed or opened by the zipper being in an occlusion state or an occlusion release state in accordance with the reciprocating movement of the slider.

Here, the structure of a general packaging bag with a slider will be described.
As shown in the cross-sectional view of FIG. 4, the zipper tape 40 is composed of a male tape 20 and a female tape 30 each having a pair of occlusal portions 42 that bite each other, and the inner surface of the film 101 that constitutes the packaging bag 100a. Is fused. The slider 10 is configured as an operation piece having an opposing surface that can sandwich the occlusal portion 42 of the zipper tape 40, and the occlusal portion 42 is occluded or released as the slider 10 moves along the longitudinal direction of the tape. The mouth of the packaging bag 100a can be closed or opened.
In addition to such a basic configuration, the slider 10 is provided with a drop-off prevention mechanism that prevents the slider 10 from dropping out of the packaging bag 100a.

As a drop-off prevention mechanism, for example, there is a mechanism in which the interval between the

protrusions

15a and 15b formed on the slider 10 is narrower than the interval between the

protrusions

24 and 34 formed on the male tape 20 and the female tape 30. .
Even if an attempt is made to pull out the slider 10 upward in the drawing by such a drop-off preventing mechanism, the

protrusions

15a and 15b are caught by the

protrusions

24 and 34, thereby preventing the slider from dropping off.

However, this drop-off prevention mechanism hinders the mounting of the slider to the packaging bag in the manufacturing process of manufacturing the packaging bag with the slider.
That is, in the slider mounting process, a pressing operation is forced to force the opening of the packaging bag into the slider against the drop-off prevention mechanism.
This push-in operation ignores the size relationship of the physical shape, and it causes an excessive external force that causes plastic deformation to act on the slider and the mouth of the packaging bag, thereby reducing manufacturing efficiency. become.

On the other hand, the packaging bag with a slider which does not require excessive pushing operation is proposed (for example, patent documents 1).
This slider is configured to be slidably engaged with a plurality (three) of fastener members, and requires a pushing operation with respect to some fastener members, but can be mounted relatively easily.

JP 2007-325751 A

However, the packaging bag with a slider described in Patent Document 1 needs to be engaged with a plurality of fastener members, forcing a complicated mounting operation, and the fastener member also has a function of guiding the movement of the slider. Therefore, there is a problem that the sealing performance in the closed state (the engagement state of the fastener member) is hindered by the presence of the slider.

The present invention has been considered in view of the above circumstances, a slider that can be attached to the mouth of a packaging bag only by a simple fitting operation, while ensuring sealing in an occlusal state, a slider zipper tape, And a packaging bag with a slider.

In order to achieve the above object, the slider of the present invention is attached to a zipper tape having occlusal portions that mesh with each other, has a facing surface that can sandwich the occlusal portion, and moves along the longitudinal direction of the tape. A slider for engaging and releasing the occlusal portion, wherein the zipper tape is formed with a guide strip for guiding the movement of the slider along the longitudinal direction of the tape, and the slider is engaged with the guide strip. The guide strip and the guided portion have hook-like cross-sectional shapes that can be hooked and engaged with each other, and the movement of the slider along the longitudinal direction of the tape is caused by the guided portion. And the guide strips are engaged with each other.

Further, the zipper tape for a slider of the present invention includes an occlusal portion that meshes with each other, has an opposing surface that can sandwich the occlusal portion, and moves along the longitudinal direction of the occlusion portion to thereby occlude and release the occlusion A zipper tape for a slider to which a slider for performing the above operation is mounted, wherein the zipper tape includes a guide strip for guiding the movement of the slider along the longitudinal direction of the tape, and the slider includes a guide strip. Engaged guided portions are provided, the guide strips and the guided portions have hook-like cross-sectional shapes that can be hooked and engaged with each other, and movement of the slider along the longitudinal direction of the tape is caused by The configuration is such that the guide portion is engaged with the guide strip portion.

Further, the packaging bag of the present invention is a packaging bag capable of storing predetermined contents, and is configured such that the slider zipper tape with the slider attached is attached to the mouth portion.

As described above, according to the present invention, since the slider is mounted on the packaging bag by the engagement between the guide strip portion having the hook-shaped cross-sectional shape that can be hooked and engaged with each other, the fitting operation is simple. Not only can the slider be mounted on the packaging bag alone, but by providing a guide strip that serves as a drop-off prevention mechanism separately from the occlusal portion, the sealing performance in the occlusal state can be ensured.

It is a perspective view of a packaging bag with a slider concerning one embodiment of the present invention. Fig. (A) is a cross-sectional view of the main part of a packaging bag with a slider according to one embodiment of the present invention, and Fig. (B) is a perspective view of the slider according to one embodiment of the present invention. Fig. (A) is a cross-sectional view of the main part of a packaging bag with a slider according to a modified embodiment of the present invention, and Fig. (B) is a perspective view of the slider according to the modified embodiment of the present invention. It is sectional drawing of the conventional packaging bag with a slider.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
As shown in these drawings, the

packaging bags

100A and 100B according to the present embodiment are configured as bag bodies in which the

zipper tapes

40A and 40B are fused to the mouth portion 110 by a hot press or the like, respectively.

Sliders

10A and 10B are mounted on the

zipper tapes

40A and 40B fused to the mouth portion 110, respectively.

The

sliders

10A and 10B and the

zipper tapes

40A and 40B attached to the mouth portion 110 have the characteristic configuration according to the present invention, and the slider that opens and closes the mouth portion 110 according to the movement of the

sliders

10A and 10B. While exhibiting the basic function of the attached packaging bag, the mounting properties of the

sliders

10A and 10B to the mouth portions 110 of the

packaging bags

100A and 100B are improved.
First, the slider 10A and the zipper tape 40A will be described with reference to FIGS.

The zipper tape 40A comprises a male tape 20A and a female tape 30A, and these tapes are fused to the inner surface of the film 101 constituting the packaging bag 100A at the mouth 110 of the packaging bag 100A.

The male side tape 20A and the female side tape 30A are respectively provided with

tape base portions

21 and 31 having a substantially rectangular cross section as a base, and the

tape base portions

21 and 31 are provided on the opposite side of the tape 101 on the opposite side of the film 101. It has a male part 22 and a female part 32 formed along the longitudinal direction.
The male part 22 and the female part 32 become the occlusal part 42, and the male-female occlusion state as shown in FIG. 2 is performed, whereby the mouth part 110 of the packaging bag 100A is closed so that the contents in the bag cannot be taken out. The Further, when the male portion 22 and the female portion 32 are separated from each other, the mouth 110 of the packaging bag 100A is opened so that the contents can be taken out.

The slider 10A is an operation piece for operating in any one of the above-described occlusion state or occlusion release state by reciprocating along the tape longitudinal direction.
The slider 10A is composed of a slider main body 11 having an inverted U-shaped cross-sectional shape. The main

body side surfaces

11b and 11c function as opposing surfaces capable of sandwiching the occlusal portion 42, and the main

body side surfaces

11b and 11c are connected upward. An upper surface 11a, and has a shape capable of sandwiching the occlusal portion 42.
Further, at the lower end of the main

body side surfaces

11b and 11c of the slider 10A, a narrow portion 11d for facilitating the fitting of the occlusal portion 42 at one end in the longitudinal direction of the slider main body 11, and the one A notch 11e for facilitating the release of the fitting portion 42 is formed at the end opposite to the end.
Here, in order to bring the occlusal portion 42 into a fitted state, the slider 10A is compressed inward by gripping the

body side surfaces

11b and 11c of the slider 10A, and the slider 10A is cut into the notch 11e side (FIG. 1). By moving to the middle left), the narrow portion 11d moves while sandwiching the occlusal portion 42, so that it is in a fitted state.

On the other hand, in order to bring the occlusal portion 42 into the disengaged state, the slider 10A is held on the narrow portion 11d side (see FIG. 5) without applying a compressive force to the slider main body 11 while holding the main

body side surfaces

11b and 11c of the slider 10A. This can be realized by moving to the middle right of 1).
This is because the gap between the guide strip portion 23 and the guided portion 12a in the engaged state, which will be described later, and the guide strip portion 33 and the guided portion 12b is in an unloaded state where the slider body 11 is not compressed. This is because the fitting state of the portion 42 is formed so as to be disengageable. That is, in the no-load state, the guide strip portion 23 and the guided portion 12a in the engaged state, and the guide strip portion 33 and the guided portion 12b pull the occlusal portion 42 outward (left and right in FIG. 2), respectively. It is because it is comprised as follows.
Further, the notch portion 11e acts to promote the outward pulling of the occlusal portion 42 by the guide strip portion 23 and the like when the slider 10A moves due to the release of the fitting. That is, in the notch portion 11e, the male tape 20A and the female tape 30B are not restrained by the main

body side surfaces

11b and 11c, and therefore the engagement release of the occlusal portion 42 is promoted.

With such a configuration of the zipper tape 40A and the slider 10A, the basic function of opening and closing the mouth 110 of the packaging bag 100A according to the movement of the slider 10A is exhibited.
Furthermore, the slider 10A and the zipper tape 40A have the following characteristic configurations in order to improve the mounting property of the slider 10A to the slider-equipped packaging bag 100A.

Specifically, the zipper tape 40A includes guide strips 23 and 33 that guide the movement of the slider 10A along the longitudinal direction of the tape. The slider 10A is a guided portion 12a that engages with the guide strips 23 and 33. , 12b.

The guide strips 23 and 33 have, for example, a female (concave) cross-sectional shape having a pair of hook-shaped portions facing each other as the hook-shaped cross-sectional shapes, and the male tape 20A and the female tape 30A, respectively. Are formed on the tape

outer surfaces

21a and 31a.
The guided

portions

12a and 12b have, for example, a male (convex) cross-sectional shape in which the bulging tip functions as a hook-shaped portion, and faces the tape

outer surfaces

21a and 31a, respectively. It is formed inside the main body side surfaces 11b and 11c.

In this way, the guide strips 23 and 33 and the guided

portions

12a and 12b have a hook-like cross-sectional shape that can be hooked and engaged with each other by either being a male portion and the other being a female portion. It has a male-female cross-sectional shape.
Thereby, the slider 10A can be moved along the guide strips 23 and 33 while the guide strips 23 and 33 are engaged (engaged) with the guided

portions

12a and 12b while the slider 10A cannot be detached from the zipper tape 40A. Thus, the movement of the slider 10A along the longitudinal direction of the tape is realized.
In particular, by adopting a male-female cross-sectional shape as the saddle-like cross-sectional shape, the guide strips 23, 33 (female part) of the guided

portions

12a, 12b in a direction perpendicular to the longitudinal direction of the tape (up and down direction in the figure). Since the movement is restricted, it is possible to reliably prevent the slider 10A from falling off the zipper tape 40A.

Further, the guide strips 23 and 33 (female portions) are separated from each other so that the distal ends of the pair of hook-shaped portions can be restored together with the insertion (directly facing insertion) of the guided

portions

12a and 12b (male portions). It has the flexibility.
Thereby, the

guide strip parts

23 and 33 and the to-

be-guided parts

12a and 12b can be easily fitted together by utilizing the elastic deformation of the

guide strip parts

23 and 33.

The guide strips 23 and 33 are provided separately from the occlusal portion 42.
Thus, by providing the guide strips 23 and 33 separately from the occlusal portion 42, it is not necessary for the occlusal portion 42 to have a function for guiding the movement of the slider 10A. It is not hindered by the presence of 10A itself. Thereby, the sealing performance of the mouth part 110 of the packaging bag 100A is ensured.
In particular, the packaging bag 100 </ b> A has a seal portion 111 in which both films 101 are fused at both ends, but an unsealed region 44 is formed at one upper end portion (left end portion in FIG. 1). The unsealed region 44 is a region in which the guided

portions

12a and 12b are accommodated when the slider 10A reaches the unsealed region 44, that is, when the occlusal portion 42 is fitted. Thereby, in the fitting state of the occlusal portion 42, the guide strip portion 23 and the guided portion 12a, and the guide strip portion 33 and the guided portion 12b in the engaged state alleviate the force that pulls the occlusal portion 42 outward. Thus, the occlusal state of the occlusal portion 42 can be secured.

Further, the mounting of the slider 10A to the zipper tape 40A is realized only by a simple fitting operation for engaging the

guide strip portions

23, 33 and the guided

portions

12a, 12b.
For example, as shown in FIG. 1, the ends of the guide strips 23 and 33 are crushed by fusion or the like without opening the ends of the guide strips 23 and 33 in order to prevent the slider 10A from falling off. In this case, the slider 10A can be attached to the zipper tape 40A with the following configuration.

For example, in the cross-sectional view shown in FIG. 2, the gap between the tip portions of the guided

portions

12 a and 12 b is formed wider than the gap between the tip portions of the guide strips 23 and 33, and a compressive force is applied to the slider body 11. In addition, the slider 10A is formed so that the interval between the inner side surfaces 11b and 11c of the main body is reduced so as to be restored.
As a result, by compressing the slider body 11 from the outside while the guided

portions

12a and 12b and the

guide strip portions

23 and 33 are opposed to each other, the guided

portions

12a and 12b are not opposed to the physical size relationship. And the guide strips 23 and 33 can be easily engaged (engaged).

Further, when the ends of the guide strips 23 and 33 are opened, an engaging piece that hangs down from the upper surface 11a of the main body so as to be able to be engaged in the mouth 110 can be provided on the slider 10A.
Thereby, even if the guided

portions

12a and 12b move to the end portions of the

guide strip portions

23 and 33, the engaging piece stops in the mouth portion 110, so that the slider 10A is prevented from falling off.
The engaging piece is flexible so as not to interfere with the attachment to the zipper tape 40A.

As described above, the mounting of the slider 10A to the zipper tape 40A is realized only by a simple fitting operation for engaging the

guide strip portions

23 and 33 and the guided

portions

12a and 12b, thereby improving the manufacturing efficiency. Can do.

Next, the slider 10B and the zipper tape 40B will be described with reference to FIG.
The slider 10B and the zipper tape 40B are modified examples of the slider 10A and the zipper tape 40A. As shown in FIG. 3, the

guide strip portions

23 and 33 and the guided

portions

12a and 12b are different, but the other is the same. It has a form.
Therefore, in the following description, the

guide strip portions

23 and 33 and the guided

portions

12a and 12b having different forms will be described in detail.

In the zipper tape 40B, the guide strips 23 and 33 are formed so as to face the tape

inner surfaces

21b and 31b of the male tape 20B and the female tape 30B, respectively.
Further, in the slider 10B, the guided

portions

12a and 12b are formed so as to protrude from the connecting portion 12c depending from the main body upper surface 11a toward the main body side surfaces 11a and 11b.
Thus, the slider 10B is moved along the guide strips 23 and 33 while being unable to drop off from the zipper tape 40B by engaging (engaging) the guide strips 23 and 33 with the guided

portions

12a and 12b. Thus, the movement of the slider 10B along the longitudinal direction of the tape is realized.

Further, since the guide strips 23 and 33 are provided separately from the occlusal portion 42, the sealing performance of the mouth portion 110 is ensured as with the slider-equipped packaging bag 100A.
In such a configuration, the slider 10B can be attached to the zipper tape 40B as follows.

For example, in the sectional view shown in FIG. 3, the distance between the tip of the guided portion 12a and the main body side surface 11b is formed wider than the distance obtained by adding the height of the guide strip 23 to the thickness of the tape base portion 21. The distance between the tip of the portion 12 b and the main body side surface 11 c is formed wider than the distance obtained by adding the height of the guide strip 33 to the thickness of the tape base 31.
Further, when a compressive force is applied to the slider body 11, the slider 10B is formed so that the distance between the body side surfaces 11b and 11c can be restored.
Thus, by compressing the slider body 11 from the outside while making the guided

portions

12a, 12b and the

guide strip portions

23, 33 face each other, the guided

portions

12a, 12b, 12b and the guide strips 23 and 33 can be easily engaged, and the mounting property of the slider 10B to the zipper tape 40B can be improved.
Since the guided

portions

12a and 12b (connecting portion 12c) are located in the mouth portion 110, the slider 10B is prevented from falling off from both ends in the tape longitudinal direction.

As described above, according to the

sliders

10A and 10B of the present embodiment and the

packaging bags

100A and 100B in which these are attached to the mouth portion 110, the slider 10 can be mounted on the zipper tape 40 only by a simple fitting operation. In addition, by providing the guide strips 23 and 33 separately from the occlusal portion 42, the sealing performance of the zipper tape 40 in the occlusal state can be ensured.

The slider 10 (10A, 10B) may be a known resin material without particular limitation as long as it is a flexible material. For example, polyamide (nylon) resin, polypropylene resin Resin materials such as ABS resins can be used as appropriate.
Further, the outer shape of the slider 10 (10A, 10B) does not have an edge between the main body upper surface 11a and the main body side surfaces 11b, 11c so as to be easily elastically deformed by the compressive force from the outer side, A substantially U-shaped (arc-shaped) cross-sectional shape having no edge is preferable.

Further, the zipper tape 40 (40A, 40B) is a low density polyethylene (LDPE) in consideration of the flexibility of the guide strips 23, 33, the engagement performance, and the fusing property to the film 101 constituting the bag body. Resin, polypropylene resin, ethylene-α / olefin copolymer resin, ethylene-acrylic acid copolymer resin, etc. can be used as appropriate.

Moreover, the main body of the packaging bag 100 (100A, 100B) is formed by folding a single film 101 made of a thermoplastic resin into a bag shape, or by superposing two films 101 made of a thermoplastic resin. What processed the bag into the bag shape etc. can be used conveniently. Although there is no restriction | limiting in particular as a thermoplastic resin, Polyolefin resin, such as a polyethylene-type resin and a polypropylene-type resin, can be used for the reason that a film shaping | molding can be implemented easily.

The present invention has been described with reference to the embodiment. However, the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims. Absent.

For example, in this embodiment, the guide strips 23 and 33 are formed on the male tape 20A and the female tape 30A, respectively, and the two guided

portions

12a and 12b are formed. Only the guided portion may be used.
In addition, the guide strip portion has a female cross-sectional shape and the guided portion has a male cross-sectional shape, but the male and female shapes are interchanged, the guide strip portion has a male cross-sectional shape, and the guided portion has a female cross-sectional shape. You can also
In addition, one of the guide strips 23 and 33 has a female sectional shape and the other has a male sectional shape, and one of the guided

portions

12a and 12b has a male sectional shape so as to correspond thereto. In addition, the other can have a female cross-sectional shape.

In the above embodiment, the male-female cross-sectional shape is adopted as the hook-shaped cross-sectional shape that can be hooked and engaged with each other. However, the hook-shaped cross-sectional shape is not limited to the male-female cross-sectional shape. It is sufficient to have hook shapes that can be hooked and engaged with each other.
Further, the slider 10 (10A, 10B) can also be provided with a hanging portion that hangs down from the upper surface 11a of the main body so as to be interrupted between the tape

inner surfaces

21b, 31b in order to bring the occlusal portion 42 into the occlusal release state.

The present invention can be widely used for a slider that engages and releases the occlusion by moving along the longitudinal direction of the zipper tape, a zipper tape for a slider to which the slider is mounted, and a packaging bag with a slider.

Although several embodiments and / or examples of the present invention have been described in detail above, those skilled in the art will appreciate that these exemplary embodiments and / or embodiments are substantially without departing from the novel teachings and advantages of the present invention. It is easy to make many changes to the embodiment. Accordingly, many of these modifications are within the scope of the present invention.
The contents of the documents described in this specification and the specification of the Japanese application that is the basis of Paris priority of the present application are all incorporated herein.

Claims

A slider that is attached to a zipper tape having occlusal portions that mesh with each other, has an opposing surface that can sandwich the occlusal portion, and moves along the longitudinal direction of the tape to engage and release the occlusal portion. And
The zipper tape is formed with a guide strip for guiding the movement of the slider along the longitudinal direction of the tape,
The slider includes a guided portion that engages with the guide strip.
The guide strip and the guided portion have hook-like cross-sectional shapes that can be hooked and engaged with each other,
The slider is moved in the tape longitudinal direction in an engaged state between the guided portion and the guide strip.
The guide strip and the guided portion have a male-female cross-sectional shape in which either one becomes a male part and the other becomes a female part and can be hooked and engaged with each other as the hook-shaped cross-sectional shape. The slider according to claim 1.
3. The slider according to claim 1, wherein the guided portion is formed on the facing surface facing the tape outer surface with respect to the guide strip portion formed on the tape outer surface of the zipper tape. .
The slider according to any one of claims 1 to 3, wherein the slider has a notch at one lower end in the longitudinal direction.
A zipper for a slider, which has an occlusal portion that meshes with each other, has a facing surface that can sandwich the occlusal portion, and is mounted with a slider that engages and releases the occlusion by moving along the longitudinal direction of the tape A tape,
The zipper tape includes a guide strip for guiding the movement of the slider along the longitudinal direction of the tape,
The slider is provided with a guided portion that engages with the guide strip.
The guide strip and the guided portion have hook-like cross-sectional shapes that can be hooked and engaged with each other,
The slider zipper tape, wherein the slider is moved in the tape longitudinal direction in an engaged state between the guided portion and the guide strip.
The guide strip and the guided portion have a male-female cross-sectional shape in which either one becomes a male part and the other becomes a female part and can be hooked and engaged with each other as the hook-shaped cross-sectional shape. The zipper tape for sliders according to claim 5.
Forming the guide strip on the outer surface of the zipper tape;
The zipper tape for a slider according to claim 5 or 6, wherein the guided portion is formed on the facing surface facing the tape outer surface.
A package with a slider, characterized in that the slider zipper tape according to any one of claims 5 to 7 is attached to the mouth portion of the slider, wherein the slider according to any one of claims 1 to 4 is mounted. bag.