JP2005178866A - Bag body with fastener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bag body with a fastener, which is easy to match the positions of a male element with a female element when closing the fastener, allowing the finger tips to be steadily slid, allowing the fastener to be easily closed, and which, in addition, does not pose a problem for its production cost or producibility. <P>SOLUTION: The bag body 1 with the fastener under this invention is characterized in that a bag body 10 having an opening section 11 at one of its ends is provided, in the interior thereof, with a reclosable male-female element type fastener 20 having the male element 21 and female element 22 mutually engaged with each other, and a pair of finger-guide ribs 31, 32, acting as guides for the finger tips at the time of closing the fastener 20 along the male element 21 and the female element 22, are provided on the outside surface of the bag body 10, at the bottom portion 15 side of the fastener 20, at the positions whose distances D from the faster 20 are 2 to 17 mm, while the interior surfaces of the finger-tip guide ribs forming portions 16, 17 are made a plane surface. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a zippered bag body in which a bag body having an opening at one end can be opened and closed by a male and female nail fastener.

  Widely used as food storage bags and the like are bags with fasteners in which a bag having an opening at one end is freely opened and closed by a male and female nail fastener provided on the inner surface thereof. In such a bag body with a fastener, by sliding a fingertip from the outer surface side of the bag body along the portion where the fastener is provided, the pair of female claws and male claws constituting the fastener are fitted, and the bag body Can be closed.

Conventionally, in this field, for example,
(1) In order to easily fit the female claws and male claws of the fastener, a pair of ribs having wall portions surrounding the tip of the female claws are provided on the inner surface of the bag body in proximity to the male claws. A zippered bag (Patent Document 1),
(2) A zippered bag body provided with a plurality of ribs on the outer surface of the bag body on both the upper and lower sides of the zipper, on the outer surface of the bag body, in order to easily open the zipper, on the outer surface of the bag body (Patent Document 2),
(3) Bags with fasteners (Patent Document 3) or ribs provided with a plurality of rows provided on the inner surface of the bag body on both the upper and lower sides of the fastener to prevent the bag body from sticking easily in order to open the fastener. A bag body with a fastener (Patent Document 4) and the like in which the inner surface of the bag body is provided with irregularities by partially forming a multilayer structure with a plurality of ribs between the layers is disclosed.
JP 59-134160 A Japanese Utility Model Publication No. 3-32049 Japanese Utility Model Publication No. 3-43447 Japanese Utility Model Publication No. 3-60243

  In the zippered bag body, the female claws and the male claws project toward the inner surface side of the bag body and are formed in a long and thin line shape. It is difficult and the operation of sliding the fingertip tends to be unstable. Neither of the above prior arts sufficiently solves this problem.

The prior art (1) is intended to prevent misalignment between the female nail and the male nail by providing a rib having a specific shape in the vicinity of the male nail, and is effective for aligning these, It does not solve the instability of the fingertip caused by the bulge of the fastener. Further, it is necessary to provide a plurality of rows of specially shaped ribs on both upper and lower sides of the fastener, which is difficult in terms of raw material costs and manufacturability.
Prior art (2) is provided with ribs on the outer surface of the bag body in order to prevent slipping when opening the fastener, and does not mention that the fastener can be easily closed. In addition, in this technique, it is necessary to provide a plurality of rows of ribs on both upper and lower sides of the fastener, which is difficult in terms of raw material costs.
Prior art (3) is provided with ribs on the inner surface of the bag body in order to prevent the bag body from sticking and to easily open the fastener, and does not mention that the fastener can be easily closed. In addition, in this technique, it is necessary to provide a plurality of rows of ribs on both upper and lower sides of the fastener, which is difficult in terms of raw material costs. Moreover, in the technique described in Patent Document 4, it is necessary to make the bag part partially a multilayer structure, and it is necessary to embed ribs therein, which is difficult in terms of manufacturability.

  The present invention has been made in view of the above circumstances, and it is easy to align the female nail and the male nail when closing the fastener, the fingertip can be slid stably, and the fastener can be easily closed. Furthermore, it aims at providing the bag body with a fastener which does not have difficulty in manufacturing cost or manufacturability.

The inventor diligently studied to solve the above problems, and invented the following zippered bag.
The zippered bag of the present invention is a zipper that is openable and closable by a male and female nail type fastener having a female nail and a male nail which are provided on the inner surface of the bag body and having an opening at one end. In the attached bag body, a pair of fingertip guide ribs that serve as guides for fingertips when closing the fastener along the female claws and the male claws are provided on the bottom side of the fastener on the outer surface of the bag body. Is provided at a position where the separation distance is 2 to 17 mm, and the inner surface of the fingertip guide rib forming portion of the bag body is a flat surface.
In the bag body with a fastener of the present invention, it is preferable that the portion between the fastener / finger guide ribs of the bag body is thicker than other portions. The total thickness of the pair of fingertip guide ribs is preferably 1/3 to 2 times the total thickness of the fastener when the fastener is closed.

  According to the present invention, it is easy to align the female and male nails when closing the fastener, the fingertip can be slid stably, the fastener can be easily closed, and the manufacturing cost and manufacturing It is possible to provide a zippered bag body having no difficulty in sex.

  Based on the drawings, the structure of a bag body with a fastener according to an embodiment of the present invention will be described. 1 is a plan view, and FIG. 2 is a cross-sectional view taken along line A-A ′ of FIG. 1. FIG. 2A is a view showing a state where the fastener is opened, and FIG. 2B is a view showing a state where the fastener is closed. Each figure schematically shows the present embodiment, and the scale and the like are different from the actual ones.

  As shown in the figure, the zippered bag body 1 according to the present embodiment has a bag body 10 having an opening 11 at one end and a male and female nail type fastener 20 (hereinafter simply referred to as “fastener”) that can be opened and closed. Ribs 31 and 32 are provided.

The bag body 10 is formed by processing a resin such as polyethylene, polypropylene, nylon, or paper into a bag shape, and the one-sided body 12 and the other-sided body 13 facing each other are connected by the side portion 14 and the bottom portion 15. , Integrated. The one-sided body 12 and the other-sided body 13 may be integrally formed in a cylindrical shape, or may be separately formed. Moreover, in order to process these into a bag shape, the side part 14 and the bottom part 15 are welded suitably as needed.
In the present embodiment, the opening-side ends 12A and 13A of the one-sided body 12 and the other-sided body 13 are shifted by several mm, and the vicinity of the opening 11 of each of the sheet-like bodies 12 and 13 (fastener 20 On the inner surface of the opening 11 side), anti-slip ribs 41 and 42 (not shown in FIGS. 1 and 2B) for preventing slipping when opening the bag body 10 are provided on the opening 11. In parallel, they are provided in a straight line in plan view. With this configuration, when the bag body 10 is opened, these end portions can be easily peeled off.

The fastener 20 is provided on the inner surface of the one-sided body 12 and the other-sided body 13, and includes a female nail 21 and a male nail 22 that are fitted to each other. 11 in a straight line in plan view. The female nail 21 and the male nail 22 are constituted by a ridge body having flexible tip portions 21A and 22A that fit together. More specifically, the distal end portion 22A of the male nail 22 is formed in a wedge shape in cross section, and the distal end portion 21A of the female nail 21 is configured to grip this, thereby being configured to fit together. Yes.
Examples of the material of the fastener 20 include resins such as polyethylene and polypropylene, and may be the same as the bag 10 or may be non-identical.

In the present embodiment, a pair of fingertip guide ribs 31 and 32 are provided in the shape of a straight line in plan view along the female claws 21 and male claws 22 of the fastener 20 and serve as fingertip guides when the fastener 20 is closed. The fingertip guide ribs 31 and 32 are provided on the outer surface of the one-surface body 12 and the other-surface body 13 on the bottom 15 side of the fastener 20 at positions where the distance D from the fastener 20 is 2 to 17 mm. . Moreover, the inner surfaces of the fingertip guide rib forming portions 16 and 17 of the bag body 10 are flat surfaces.
As the cross-sectional shape of the fingertip guide ribs 31 and 32, in addition to the illustrated semi-elliptical shape, a semicircular shape, a triangular shape, a trapezoidal shape, a triangular vertex is an arc shape, and a triangular vertex is a double vertex. It may have any shape such as a notch that has a notch.
Examples of the material of the fingertip guide ribs 31 and 32 include resins such as polyethylene and polypropylene, and may be the same as or different from the bag body 10.

  By providing the fingertip guide ribs 31 and 32, the operation of closing the fastener 20 (bag 10) is facilitated. That is, the fingertip is arranged so as to touch the fingertip guide ribs 31, 32, the one-surface body 12 and the other-surface body 13 of the bag body 10 are aligned, and the fingertip is slid along the fingertip guide ribs 31, 32. By doing so, the fingertips can naturally press the female claws 21 and male claws 22 of the fastener 20 so that they can be easily fitted and closed. Thus, in this embodiment, the female nail 21 and the male nail 22 can be naturally aligned due to the presence of the fingertip guide ribs 31 and 32. Moreover, in this embodiment, since the inner surface of the rib formation parts 16 and 17 of the bag body 10 was made into the flat surface, when closing the fastener 20, the inner surfaces of the rib formation parts 16 and 17 of the bag body 10 closely_contact | adhere. The sliding operation of the fingertip is stable.

  The separation distance D is determined when the inventor contacts the fingertip guide ribs 31 and 32 with the fingertip abutment, and when the one-surface body 12 and the other-surface body 13 of the bag body 10 are combined, It also extends to the fastener forming portion of the body 10 and is specified by examining and specifying at least the rib forming portions 16 and 17 of the bag body 10.

When the separation distance D is less than 2 mm, the inventor found that the fastener 20 and the fingertip guide ribs 31 and 32 are too close to each other, and at least rib formation of the bag body 10 is caused by the presence of the fastener 20 protruding to the inner surface side of the bag body 10. It has been found that it is difficult to bring the portions 16 and 17 into close contact with each other, and the sliding operation of the fingertip becomes unstable.
The upper limit of the separation distance D is the second distal joint of an average Japanese woman described in “Japanese anthropometric data” (published by Human Life Engineering Research Center, 1997, p.433). Based on the width, when the average Japanese woman abuts the fingertips on the fingertip guide ribs 31 and 32 and puts the one-sided body 12 and the other-sided body 13 of the bag body 10 together, the belly of the fingertip is the bag. It set so that the fastener formation part of the body 10 might also be extended. Since the width of the second finger distal joint does not vary so much depending on the person, if the separation distance D is within 17 mm, a normal user excluding infants and the like can sufficiently attach the fastener forming portion of the bag body 10. Can be pressed.
In particular, the separation distance D is preferably set to 3 to 8 mm, whereby the fingertip slidability can be further stabilized and the fastener 20 can be easily closed.

In the present embodiment, it is preferable that the portions 18 and 19 between the fastener / fingertip guide ribs of the bag body 10 are thicker than the other portions. The difference in thickness between the thick part and the other part is not particularly limited as long as it is within a range that can be recognized by touching with a fingertip, for example, preferably 10 to 300 μm, more preferably 40 to 300 μm, and particularly preferably 50 to 200 μm is preferred. By setting it as such a range, when closing the fastener 20, it is only necessary to slide the fingertip along the thick portion, so that the fingertip slidability is further stabilized and the fastener 20 can be closed more easily. . If the difference in thickness between the thick part and the other part is less than 10 μm, the difference in thickness is too small, so that the effect of improving the stability of fingertip slidability does not appear significantly. Therefore, the fastener 20 is difficult to close and the amount of resin to be used is increased, which is not preferable in terms of cost.
Moreover, the effect which the rigidity of the bag body 10 increases by providing a thick part is also acquired. That is, by increasing the thickness of the portion of the bag body 10 that repeatedly receives the fingertip sliding operation, this portion can be reinforced and the durability of the bag body 10 can be improved.

  In addition, the total thickness T1 of the pair of fingertip guide ribs 31 and 32 is preferably 1/3 to 2 times the total thickness T2 of the fastener 20 when the fastener 20 is closed, and particularly 1 / 1.5 to It is desirable that the ratio is 1.5 / 1. By setting T1 / T2 within such a range, the fingertip enters between the fastener 20 and the fingertip guide ribs 31 and 32, and the movement of the upper and lower fingers is suppressed. 20 can be closed more easily. When T1 / T2 is less than 1/3 times or more than 2 times, the height of the fastener / fingertip guide rib is unbalanced, and the fingertip is brought into contact between the fastener 20 and the fingertip guide ribs 31 and 32. In addition, the fingertip force is not applied evenly, and it becomes difficult to stabilize the fingertip slidability.

Furthermore, it is preferable that the fingertip guide ribs 31 and 32 and / or the fastener 20 are colored in a color different from that of the bag body 10. Thereby, it becomes easy to visually recognize these when the fastener 20 is opened and closed, and the operation becomes easier.
Further, it is also preferable that the tip portions of the fingertip guide ribs 31 and 32 are provided with irregularities such as undulations along the extending direction thereof to further stabilize the fingertip slidability when closing the fastener 20. .
In this embodiment, a pattern etc. can also be attached | subjected by embossing the bag body 10 as needed.

According to the present embodiment, the fingertip guide ribs 31 and 32 are provided on the outer surface of the bag body 10 on the bottom 15 side of the fastener 20 at a position where the distance D from the fastener 20 is 2 to 17 mm. Since the inner surfaces of the fingertip guide rib forming portions 16 and 17 are flat surfaces, the female claws 21 and the male claws 22 can be easily aligned when the fastener 20 is closed as described above, and the fingertips can be slid stably. The fastener 20 can be easily closed.
Moreover, in this embodiment, since the said effect is acquired only by providing a pair of fingertip guide ribs (in one row), it is not necessary to provide a plurality of pairs, and the raw material cost is not greatly increased. In addition, the above-described effects can be obtained regardless of the cross-sectional shape of the fingertip guide ribs 31 and 32, and the fingertip guide ribs 31 and 32 may be attached to the outer surface of the bag body 10, so that even after the bag body 10 is processed. The fingertip guide ribs 31 and 32 can be easily attached, and there is no difficulty in terms of manufacturability.
In addition, the bag body 1 with a fastener is only one embodiment, and the shape and the like of the fastener can be appropriately changed.

(Examples 1-6, Comparative Examples 1-3)
In each example, a zippered bag was produced in the same manner except that the separation distance D was as shown in Table 1. The ratio (T1 / T2) of the total thickness T1 of the fingertip guide rib to the total thickness T2 of the fastener when the fastener was closed was 1/1.
(Examples 7 to 10)
In Examples 7 to 10, a zippered bag was produced in the same manner as in Example 3 except that T1 / T2 was as shown in Table 2.
(Evaluation)
For each zipped bag, 10 women in their 20s and 50s performed opening / closing operations and asked if they could easily close the zipper.
(result)
The results are shown in Tables 1 and 2.
As shown in the table, by setting the separation distance D to 2 to 17 mm and T1 / T2 to 1/3 to 2/1, a majority of the subjects answered that it was easy to close the fastener, and good results were obtained.

  The zippered bag of the present invention is suitably used as a food storage bag or the like.

FIG. 1 is a plan view of a bag body with a fastener according to an embodiment of the present invention. 2 (a) and 2 (b) are cross-sectional views of a bag body with a fastener according to an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bag body with a fastener 10 Bag body 11 Opening part 15 Bottom part 16, 17 Rib formation part for fingertip guides 18, 19 Between fastener / fingertip guide ribs 20 Female and female nail type fasteners 21 Female claws 22 Male claws 31, 32 For fingertip guides Rib D Separation distance T1 Total thickness of a pair of fingertip guide ribs T2 Total thickness of the fastener when the fastener is closed

Claims (3)

In a bag body with a fastener that is openable and closable with a male and female nail type fastener having a female nail and a male nail that are provided on the inner surface of the bag body and having an opening at one end thereof,
A pair of fingertip guide ribs that serve as guides for fingertips when closing the fastener along the female claws and the male claws are spaced apart from the fastener by 2 on the bottom side of the fastener on the outer surface of the bag body. A zippered bag body, which is provided at a position of ˜17 mm, and the inner surface of the fingertip guide rib forming portion of the bag body is a flat surface.   The zippered bag according to claim 1, wherein a portion between the zipper / finger guide ribs of the bag is made thicker than other portions.   The total thickness of the pair of fingertip guide ribs is 1/3 to 2 times the total thickness of the fastener when the fastener is closed. Bag body.

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