JPH0977096A - Bag member fitted with chuck made of synthetic resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag member enhanced in safety against the packing of a heavy article and having airtight and watertight function preventing the leakage of air and a liquid. SOLUTION: A bag member 1 has two sets of upper and lower chucks 3, 4 on one side 1a and other side 1b of the mutually opposed opening parts 2 thereof. The chucks 3a, 4a of the opening part 2 are provided on a wide base piece 5 bonded on the side of the opening part and non-bonded on the side of the anti-opening part in a protruding state so that at least the lower chuck 4a is positioned at the non-bonded part of the base piece 5 and the chucks 3b, 4b of the opening part 2 of the other side 1b are integrally formed to the bag member 1 at the position engaging with the chucks 3a, 4a of the opening part 2 on one side 2a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag having an opening provided with a synthetic resin chuck made of male and female nails.

[0002]

2. Description of the Related Art Conventionally, as an example of a bag body having two upper and lower pairs of synthetic resin chucks made of male and female claws that occlude each other on one side and the other side of opposing openings, see, for example.
No. 3452 is known. The bag according to this conventional device has a useful characteristic that it is possible to safely pack a heavy object which cannot be maintained and secured in the packing form with the bag with a single engaging device.

[0003]

In the above-mentioned conventional bag body, a heavy object can be safely packaged by summing the occlusal forces by the two pairs of upper and lower occlusal tools. With a synthetic resin chuck, the internal pressure of the bag creates an action force to open the chuck, and the male and female claws open because they cannot bear the load, or the female claws expand and deform, causing the contents to enter the occlusal gap. There is a case where the liquid enters and the liquid leaks, and improvement of the liquid has been a problem.

An object of the present invention is to further enhance the safety of packaging heavy articles and prevent gas and liquid leakage in a bag body having two sets of upper and lower double-biting fasteners for safely packaging heavy articles. It is an object of the present invention to provide a bag body with a synthetic resin chuck having a gas-tight and water-tight function.

[0005]

Means for Solving the Problems The gist of the present invention for achieving the above-mentioned object is to provide a synthetic resin chuck made of male and female claws that occlude each other on one side and the other side of an opening opposite to each other. In the bag body provided as a set, the chuck of the opening on the one side is on a wide base piece whose opening side is adhered and the non-opening side is non-adhesive, and at least the lower chuck is on the non-adhesive part of the base piece. It is characterized in that it is projected so as to be positioned, and that the chuck of the opening on the other side is integrally formed with the bag body at a position where it is engaged with the chuck of the opening on the one side.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a bag body, which is formed of films 1a and 1b of synthetic resin facing each other. On one side (film 1a) and the other side (film 1b) of the opening portion 2 of the bag body 1 facing each other, two sets of upper and lower chucks 3 and 4 made of synthetic resin made of male and female claws that engage with each other are provided.

The two upper and lower chucks 3 and 4 are constructed as follows. That is, on the side of the film 1a on one side of the opening 2, the female claw 3a of the upper chuck 3 is mounted on the wide base piece 5 having the opening 2 side bonded and the non-opening side non-bonded. The female claw 4a of the lower chuck 4 is projected so as to be located in the non-bonded portion of the base piece 5, and on the film 1b side of the opening 2 on the other side, a wide base piece that is entirely bonded to the film 1b. To 6,
This is a configuration in which male claws 3b, 4b are provided so as to project at positions where they engage the female claw 3a of the upper chuck 3 and the female claw 4a of the lower chuck 4. Reference numeral 5a is an extending portion of the base piece 5 extending downward from the female claw 4a of the chuck 4 below.

With the above structure, as shown in FIG. 2, the internal pressure P generated in the bag 1 is transmitted to the vicinity of the lower chuck 4 and the upper chuck 3, but the non-bonded portion of the base piece 5. When the chucks 3 and 4 maintain a normal occlusion and are heavy, or when they are dropped or otherwise weighted, no force is exerted to open the chucks 3 and 4. Even if the film 1a, 1b of the bag 1 or the respective adhesive portions, particularly the adhesive portion on the opening side of the base piece 5, is not damaged, the heavy object is safely packaged.

Further, due to the internal pressure P generated in the bag body 1, the base piece 5 having the non-adhesive portion has a film on the other side where the base piece 5 between the upper chuck 3 and the lower chuck 4 faces. Pressed against the base piece 6 on the 1b side, and
The extending portion 5a of the base piece 5 presses against the film 1b on the other side to block the contents that try to enter the gaps between the chucks 3 and 4, thus providing an airtight and watertight action.

[0010]

[Embodiment] As another embodiment of the present invention, as shown in FIG. 3, even if the base piece 5 does not have the extending portion 5a, the non-adhesive portion is removed by the internal pressure P generated in the bag 1. The base piece 5 has a base piece 5 between the upper chuck 3 and the lower chuck 4 and is in pressure contact with the base piece 6 on the film 1b side on the other side facing the base piece 5 so as to penetrate into the gap of the upper chuck 3. It shuts off the contents, and acts as a gas and watertight.

Further, as shown in FIG. 4, instead of the wide base piece 6 entirely adhered to the film 1b on the film 1b side on the other side of the opening 2 according to FIG.
And the lower male claw 4b, respectively, with a narrow base piece 6a,
It may be 6b.

Further, as shown in FIG. 5 as a modification of FIG. 4, the lower chuck 4 is a base piece 5 on the film 1a side.
The male nail 4b to the base nail 6b on the base piece 6b on the film 1b side.
You may project a.

Further, as shown in FIG. 6, the base pieces 6, 6a, 6b adhered to the film 1b side may be eliminated and the male pawls 3a, 4a may be integrally formed on the film 1b.

Further, as shown in FIG. 7, the parallel gap between the upper chuck 3 and the lower chuck 4 may be reduced, and the extending portion 5a of the base piece 5 may be lengthened.

A wide base piece 5 on the film 1a side
Is preferably thinner than the base pieces 6, 6a, 6b on the film 1b side. As a result, the internal pressure P generated in the bag body 1 can be arbitrarily deformed, and as a result, it is easy to be pressed, and the pressed portion fits closely and comes into close contact with the chucks 3 and 4 in an attempt to enter. To improve the blocking function of the contents.

The upper chuck 3 provided on the base piece 5 on the side of the film 1a is not always set at the bonding portion of the base piece 5, but is set within the range of the non-bonding portion as shown in FIG. It is also possible.

[0017]

As described above, according to the present invention, in a bag body capable of safely packaging a heavy object with two sets of upper and lower double-row interlocking devices, the chuck of the opening on one side is bonded on the opening side. On a wide base piece whose opening side is not adhered, at least the lower chuck is projected so as to be located in the non-adhered portion of the base piece, and the chuck of the opening on the other side is the opening of the one side. The structure that is integrally formed with the bag body at the position where it engages with the chuck has the advantages that the safety for packaging heavy objects is further increased, and the gas and liquid leak-proof effect is obtained by preventing gas and liquid leakage. .

[Brief description of drawings]

FIG. 1 is a sectional perspective view of a main part of a bag according to the present invention.

FIG. 2 is a perspective view of a cross-section of a main part in a state where a pressure inside the bag acts.

FIG. 3 is a perspective view of a cross section of a main part showing another embodiment of the present invention.

FIG. 4 is a cross-sectional perspective view of a main part showing another embodiment of the present invention.

FIG. 5 is a cross-sectional perspective view of a main part showing another embodiment of the present invention.

FIG. 6 is a cross-sectional perspective view of a main part showing another embodiment of the present invention.

FIG. 7 is a cross-sectional perspective view of a main part showing another embodiment of the present invention.

[Explanation of symbols]

 1 Bag 1a Film on one side 1b Film on the other side 2 Opening 3 Upper chuck 3a Female claw 3b Male claw 4 Lower chuck 4a Female claw 4b Male claw 5 Base piece 6 Base piece

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[Procedure amendment]

[Submission date] October 20, 1995

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 5

[Correction method] Change

[Correction contents]

[Figure 5]

Claims (1)

[Claims] 1. A bag body having two pairs of upper and lower pairs of chucks made of synthetic resin, which are made up of male and female claws that engage with each other, on one side and on the other side of the opening facing each other, and the chuck of the opening on one side is open. On a wide base piece whose part side is adhered and the non-opening side is non-adhered, at least the lower chuck is projected so as to be located in the non-adhesive part of the base piece,
A bag body with a zipper made of synthetic resin, wherein the chuck of the opening portion on the other side is integrally formed with the bag body at a position where the chuck of the opening portion on the other side engages.