JP3013679U - storage bags - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a storage bag capable of improving storage stability and airtightness. [Structure] A plastic film 1b in which a female tape 5 of an airtight fastener 2 and a male tape 8 of a fitting fastener 6 are welded together at one end, and a male tape 4 of the airtight fastener 2 is fitted at one end. The female tape 7 of the fastener 6 and the plastic film 1a that are welded together are provided. Then, the plurality of plastic films 1a and 1b are superposed and arranged so that the respective fasteners 2 and 6 are fitted to each other, and the other ends and both sides of the plurality of plastic films 1a and 1b are burnt and adhered.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a storage bag for storing fresh food, processed food, frozen food, powdered food, or other articles.

[0002]

[Prior art]

 As shown in FIG. 4, a conventional storage bag is provided with a rectangular thin bag body 1, and an airtight fastener 2 for opening and closing the bag body 1 is arranged parallel to the upper and lower sides on the inner surface of the open upper portion of the bag body 1. It is welded.

The bag body 1 is formed by folding a single plastic film into two and sealing the lower end (downward in FIG. 4) and the three sides of both sides by high-frequency burn-off bonding. There is.

As shown in FIG. 5, the airtight fastener 2 is provided with a pair of tapes 3 and 3a facing each other, and a bendable male fastener 4 is integrally tape-shaped on the facing surface of one tape 3. A bendable female fastener 5 is integrally formed in a tape shape on the opposing surface of the other tape 3a. One tape 3 is welded to the upper inner surface of the one plastic film 1a, and the other tape 3a is welded to the upper inner surface of the other plastic film 1b. Further, the male fastener 4 is provided with a trunk piece 4a that horizontally protrudes leftward in FIG. 5 from the facing surface of the one tape 3, and a bulging hook portion having a semi-elliptical cross section is provided at the tip of the trunk piece 4a. 4b is integrally molded and has a substantially mushroom-shaped cross section. Furthermore, the female fastener 5 is curved and formed into a substantially C-shaped cross section, and both free ends thereof are bent inward to form a claw 5a.

Therefore, if foods such as fresh foods, processed foods, or frozen foods (not shown) are stored in the opened bag body 1, the male fasteners 4 and the female fasteners 5 of the airtight fastener 2 can be engaged with each other. Since the bulging hook portion 4b of the male fastener 4 is fitted in the female fastener 5 and the claws 5a of the female fastener 5 are engaged with the upper and lower edges of the bulging hook portion 4b, respectively, the bag body 1 Can be sealed to store food.

[0006]

[Problems to be solved by the device]

 The conventional storage bag is configured as described above, and the bag body 1 is simply opened and closed by the single airtight fastener 2, so that there is a problem in that the sealing property and the storage property are insufficient. For example, when fresh food such as vegetables, fish, or meat is stored, liquid such as juice easily leaks from the bag body 1 to the outside, and airtightness cannot be ensured. It was not possible to prevent the deterioration and maintenance of quality.

The present invention has been made in view of the above, and an object of the present invention is to provide a storage bag capable of preventing leakage of liquid and improving airtightness and preservation.

[0008]

[Means for Solving the Problems]

 In the present invention, in order to achieve the above object, a plastic film having a tape having a male mold of an airtight fastener and a female mold of a fitting fastener is attached, a female film of the airtight fastener and the fitting fastener. A plastic film with a male type and a tape welded together is provided.The two plastic films are superposed and arranged so that the respective fasteners are fitted to each other, and the fasteners form the inlet of the bag. In order to prevent this, the above-mentioned two polymerized plastic films are burned out and adhered. The male part of the fitting fastener is formed into a substantially harpoon cross section, and the hook part of the male part located on the bottom side of the bag is extended toward the bottom to form an extended hook part. It is desirable that the female mold of (1) is curved to have a substantially C-shaped cross section.

[0009]

[Action]

 According to the present invention having the above-mentioned structure, when the female type and the male type of the fitting fastener are fitted, the female type having a substantially C-shaped or a substantially U-shaped cross-section is inserted into the female type having a substantially harpoon-shaped section. The male mold is inserted into the female mold, and the hooks and extension hooks of the male mold are hooked on both free ends of the female mold so that the female mold and the male mold seal the storage bag. Further, when the female mold and the male mold of the airtight fastener are fitted, the male mold is inserted into the female mold, and the female mold and the male mold are fitted to each other to ensure airtightness.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the storage bag in this embodiment is configured such that the airtight fastener 2 and the fitting fastener 6 are welded side by side on the inner surface of the open upper portion of the rectangular bag body 1.

The bag body 1 is formed into a flat thin bag from a single plastic film such as a polyethylene film having excellent heat-sealing properties, translucency, flexibility, moisture resistance and strength. That is, in the bag body 1, as shown in FIG. 1, a plastic film is folded in two, and the lower end portion (downward direction in FIG. 1) and both sides (leftward and rightward direction in FIG. 1) of three sides have high frequency. It is formed by sealing by burning and adhering.

Further, as shown in FIG. 2, the airtight fastener 2 includes a pair of tapes 3 and 3a facing each other, and a bendable male fastener 4 is integrally tape-shaped on the facing surface of one tape 3. A bendable female fastener 5 is integrally formed in a tape shape on the opposing surface of the other tape 3a. One tape 3 is welded to the upper inner surface of the one plastic film 1a, and the other tape 3a is welded to the upper inner surface of the other plastic film 1b. Further, the male fastener 4 is provided with a trunk piece 4a that horizontally projects from the facing surface of the one tape 3 in the left direction in FIG. 2, and a bulging hook portion having a semi-elliptical cross section is provided at the tip of the trunk piece 4a. 4b is integrally molded and has a substantially mushroom-shaped cross section. Furthermore, the female fastener 5 is curved and formed into a substantially C-shaped cross section, and both free ends thereof are bent inward to form a claw 5a.

Further, in the fitting fastener 6, as shown in FIG. 2, the bendable female fastener 7 is integrally formed in a tape shape on the facing surface of the one tape 3, and the mating fastener 6 is formed on the facing surface of the other tape 3a. A bendable male fastener 8 is integrally formed in a tape shape, and is located on the lower side of the airtight fastener 2, in other words, on the lower end side of the bag body 1. The female fastener 7 is curved and formed into a substantially C-shaped cross section, and both free ends thereof are respectively bent inward to form a claw 7a. Further, the male fastener 8 is provided with a backbone piece 8a that horizontally protrudes from the other tape 3a to the right in FIG. 2, and a hook portion 8b and an extended hook portion 8c are provided from above and below the tip of the backbone piece 8a. The extended hook portions 8c located on the lower end side of the bag body 1 are inclined and projected toward the lower end portion (downward in FIG. 1) than the hook portion 8b located on the upper end portion side of the bag body 1. It is stretch-molded and has a substantially harpoon shape in cross section or an arrow shape in cross section.

Therefore, when it is desired to accommodate food (not shown), after accommodating food such as fresh food, processed food, or frozen food in the bag body 1 in the opened state, the female fastener 7 and the male fastener 7 of the fitting fastener 6 are accommodated. The female fastener 5 and the male fastener 4 of the airtight fastener 2 may be occluded together with the male fastener 8. Then, as shown in FIG. 3, the tips of the male fasteners 8 are fitted into the female fasteners 7 of the fitting fasteners 6, and the hooks 8b and the extended hooks 8c are locked to the pair of hooks 7a, respectively. The mold fastener 7 and the male fastener 8 are deformed to seal the bag body 1. Further, in a similar manner to this, the bulging hook portion 4b of the male fastener 4 is fitted into the female fastener 5 of the airtight fastener 2, and the hook claws 5a are respectively engaged with the upper and lower edges of the bulging hook portion 4b. The female fastener 5 and the male fastener 4 are respectively deformed and fitted to secure airtightness.

According to the above configuration, a plurality of fasteners including the airtight fasteners 2 and the fitting fasteners 6 are welded side by side to the storage bag, and the female fasteners 5 and the male fasteners 4 of the airtight fasteners 2 are fitted together. Since the female fasteners 7 and the male fasteners 8 of the combined fastener 6 are arranged alternately, it is possible to expect significant improvements in sealing performance, airtightness, and storability. Therefore, even when fresh food such as vegetables, fish, or meat is stored, liquid such as juice does not leak from the bag body 1 to the outside, and as a result, food deterioration is prevented, quality is maintained, and microorganisms are kept. It is possible to prevent the adhesion of dust and the like. Furthermore, since the extended hook portion 8c of the male fastener 8 is bent and firmly fitted and locked in the female fastener 7 of the fitting fastener 6, it is possible to expect a great increase in sealing performance and airtightness. It is possible to surely secure the sealing property and airtightness of the bag.

In the above embodiment, the rectangular bag body 1 shown in FIG. 1 is used, but the arrangement direction of the bag body 1, the size of the bag body 1, the size, the shape, the form, or the like may be appropriately changed. For example, it goes without saying that the bag body 1 may be self-stereoscopic, or the bag body 1 may be appropriately subjected to sterilization treatment, printing, or coloring. Further, in the above-mentioned embodiment, a bag made of a plastic film made of polyethylene film is shown, but the present invention is not limited to this. For example, other plastic single films (polypropylene, vinyl chloride, vinylidene chloride, ethylene vinyl acetate, nylon, polyester, polyvinyl alcohol, ionomer, etc.) and plastic composite films (laminate film, extruded laminated film, or coextruded laminated film). Bags may be made as appropriate. In addition, the items to be stored are not limited to fresh foods, processed foods, frozen foods, etc. Even if the intended product is stored and packaged, the same operational effects as those of the above-described embodiment can be obtained. Further, the female fasteners 5 and 7 may have a substantially concave shape or a substantially U-shaped cross section as long as they can be expected to have substantially the same effect. Furthermore, it is needless to say that the male fasteners 4 and 8 may have an almost umbrella-shaped cross section as long as they can be expected to have substantially the same action and effect.

[0017]

[Effect of device]

 As described above, according to the present invention, it is possible to prevent the leakage of liquid and improve the hermeticity, airtightness, and storability.

[Brief description of drawings]

FIG. 1 is an overall explanatory view showing an embodiment of a storage bag according to the present invention.

FIG. 2 is an enlarged cross-sectional explanatory view of an essential part showing an embodiment of a storage bag according to the present invention.

FIG. 3 is an enlarged cross-sectional view of a main part showing a sealed state of the storage bag according to the present invention.

FIG. 4 is an overall explanatory view showing a conventional storage bag.

FIG. 5 is an enlarged cross-sectional explanatory view of a main part of a conventional storage bag.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bag 1a ... One plastic film 1b ... Other plastic film 2 ... Airtight fastener 3 ... One tape 3a ... Other tape 4 ... Airtight fastener male fastener (male) 5 ... Airtight fastener female fastener (Female type) 6 ... Fitting fastener 7 ... Female fastener (female type) 7a ... Female fastener claw 8 ... Male fastener (male) 8b ... Hook portion 8c ... Extension hook portion

Claims (2)

[Scope of utility model registration request] Claim: What is claimed is: 1. A plastic film having a tape having a male mold of the airtight fastener and a female mold of the fitting fastener welded, and a tape having a female mold of the airtight fastener and the male mold of the fitting fastener welded to each other. And a plastic film formed by stacking these two plastic films so that the fasteners are fitted to each other, and
A storage bag, characterized in that the above-mentioned two polymerized plastic films are burnt off and adhered so that the fastener forms the inlet of the bag. 2. A male die of the fitting fastener is formed to have a substantially harpoon cross section, and a hook portion of the male die located on the bottom side of the bag body is extended toward the bottom to form an extended hook portion. 2. The storage bag according to claim 1, wherein the female type of the fitting fastener is formed in a curved shape having a substantially C-shaped cross section.