JP2002179157A - Storing bag and method for providing the storing bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a less-expensive storing bag capable of easily attaining an effect such as a temperature retension and the like when the temperature retension or the like is required. SOLUTION: This storing bag is constituted such that a sidewall of a storing space formed inside the storing bag is formed by at least two sheets, a space capable of hermetically filling gas between the two sheets constituting the sidewalls is formed, and there is provided a gas feeding port capable of feeding gas between the two sheets and being hermetically closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage bag for storing goods and the like therein, and more particularly to a storage bag for storing goods when shopping in a so-called supermarket and the like, and a method of providing the storage bag.

[0002]

2. Description of the Related Art In supermarkets, convenience stores, fast food stores, department stores, and the like,
The merchandise purchased by the customer is put into a shopping bag at a so-called cash register at the time of accounting. In some cases, the clerk puts the product in a shopping bag and gives it to the customer, or the customer receives the shopping bag and puts the product in the shopping bag. The bag with the product is taken home by the customer. Generally, such storage bags are:
This is a so-called plastic bag made of polyethylene.

FIG. 10 shows a conventional general storage bag.
1 is a handbag, and 2 is a storage part. The upper part (3) of the hand-held part 1 is heat-welded and fixed. Similarly, the lower part (portion 4) of the housing part 2 is also thermally welded and fixed.

[0006] A product can be put into the interior space of the storage bag shown by the storage portion 2, and the customer can carry the product by putting her hand in the hand holding portion 1.

[0005]

By the way, some products may be at room temperature, may require refrigeration or freezing, such as beverages and frozen foods, or may be heated or overheated, such as prepared foods. There is something. At the cash register, such products may be handed out in ordinary shopping bags, but they can be put in a so-called cool box made of Styrofoam to keep them cool or warm, or wrapped in an air cushion sheet, etc. Or in a special bag lined with a foamed polypropylene sheet or the like.

However, such a cool box, a dedicated sheet, and a dedicated bag are not only large in volume and take up space, but also considerably expensive as compared with a normal shopping bag as shown in FIG. there were. If the product itself is relatively expensive compared to the price of the cool box or the like, it is good, but if the product itself is not relatively expensive, the customer has separately been charged for the cool box or the like.

[0007]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an accommodating bag which is inexpensive and which can easily obtain the effect of keeping heat when it needs to keep heat. And

It is another object of the present invention to provide a method for providing a storage bag that easily produces a heat retaining effect or the like.

The storage bag of the present invention is a storage bag for storing goods and the like, and has at least two sheets on the side wall of a storage space formed inside the storage bag. Further, the storage bag has a space in which gas can be sealed between two sheets forming the side wall, and has a gas inlet capable of injecting gas between the two sheets and sealing.

The method for providing a storage bag according to the present invention is characterized in that a gas supply means for supplying gas to the gas injection port of the storage bag and a sealing means for sealing the gas injected from the gas injection port are provided. After the gas is injected by the supply means, the gas is sealed by the sealing means to provide a storage bag.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a storage bag according to the present invention will be described below with reference to the drawings. The material of the storage bag described below is not particularly limited as long as it fulfills the function described in the following embodiment. For example, a material such as ordinary polyethylene may be used.

(First Embodiment) FIG. 1 is an outline view of a storage bag according to a first embodiment of the present invention. 1 is a hand-held section and 2 is a product storage section. The upper part 3 of the handle part of the handle part 1 is heat-welded. The bottom part 4 of the housing part 2 is also thermally welded. Unlike conventional shopping bags, etc.
The side wall surface of the storage bag is formed by the two polyethylene sheets. The fact that the side wall surface of the storage bag is formed of two sheets will be described more specifically later.

The opening 5 in the upper part of the bag is a part for taking in and out of goods. In the center of the opening 5, two extended, so-called tongue-shaped, binding portions (kinbakubu) 6 for binding the opening 5 are provided so as to prevent the product from spilling out after the product is stored. I have. Each binding part is 2
It is formed of two sheets. A product inlet / outlet is formed between one of the binding portions 6 and the other 8, and a product storage space is formed inside the bag formed by the side wall surface.

In the figure, the numbers 9, 10, 11, 12, 13
The part indicated by is indicated by the heat-welded part. 9, 1
Reference numerals 0 and 13 denote portions of the two sheets on the back side, that is, the back side, when the bag shown in FIG. 1
Numerals 1 and 12 show portions of the two sheets on the labor side, that is, the front side, which are heat welded when the bag of FIG. 1 is viewed. FIG.
As will be apparent from the manufacturing method described in
12 and 13 form a continuous heat-welded portion.

A portion of one of the binding portions 6 has a gas inlet 14 between the heat-welded portions 11 and 12.
And since each side wall surface is formed by two sheets, the internal space between the sheet outside and the inside of the side wall surface closed by the heat-welded portions 4, 9, 11, 12, 13 is the binding portion 6 This is a closed space except for one of the gas injection ports 14. Therefore, when gas is injected from the gas injection port 14 between the two sheets on the side wall, the gas fills the gas-filled space because there is no leaking portion. After the gas is injected into the gas-filled space, when the binding portion 7 is thermally welded at the portion indicated by the dotted line 15, the gas is sealed in the space between the gas-injected side walls. The gas may be air or the like.

Therefore, when the product to be stored needs to be kept warm or the like, after putting the product in the bag (or before putting it) at a cash register of a supermarket or the like, a gas is injected from the inlet 13 and injected. The entrance 13 is closed such that the space between the side walls of the storage bag is a closed space. The gas such as air between the injected side walls exerts a heat insulating effect, and the storage bag produces effects such as heat insulation and cold insulation. It also has impact resistance.

Next, to make the structure of the bag clearer,
A method for manufacturing a bag will be described.

FIGS. 2 (a), 2 (b) and 2 (c) and FIGS. 3 (d) and 3 (e) show the manufacturing process. First, a cylindrical polyethylene sheet 20 is prepared (a). 21 and 22 are added to a part of the sheet in a state where the cylindrical sheets are overlapped.
As shown by (b), heat welding is performed in an L-shape (b). 21 and 2
The L-shaped upper portion 23 sandwiched between the heat-welded portions indicated by 2 communicates with the lower portion 24 of the tubular sheet. The outer portions 25 and 26 of the L-shaped upper portion 23 sandwiched between the heat-welded portions indicated by 21 and 22 communicate with the lower portion 24 in the space between the two sheets. Absent.

Next, both sides 27 and 2 of the sheet shown in FIG.
8 are superimposed and thermally welded as indicated by 31 (c). Then, as shown by 41 in FIG.
The lower portion 24 shown in (b) is thermally welded (d). In this state, in the bag formed of two sheets, the space between the two sheets on the side wall is a closed space except for the opening at the portion 23, that is, the gas inlet. And
As shown in FIG. 3E, the side of the upper portion 42 is heat-welded,
When the portion indicated by the chain line 43 is cut, the storage bag shown in FIG. 1 is completed.

Therefore, the storage bag shown in FIG.
Gas is introduced from 3 and the inlet 13 is closed to form a heat insulating space between the two sheets on the side wall.

(Second Embodiment) Next, a second embodiment will be described with reference to FIG.

In FIG. 4, reference numeral 1 denotes a hand-held portion, and 2 denotes a product storage portion. The customer puts his / her finger or hand into the gripping opening 61 of the handbag 1, and the customer grips the bag. 62, 63, 64, 6
5, 66, 67 and 68 are heat-welded portions.

A gas inlet 60 is provided between the heat-welded portions 62 and 63, next to a part of the gripper 61 of the hand-held portion 1. And since each side wall surface is formed of two sheets, the internal space between the sheet outside and inside the side wall surface closed by the heat welded parts 62, 63, 64, 67, 68 is:
Except for the gas inlet 60, the space is closed. Therefore, when gas is injected from the gas injection port 60 between the two sheets on the side wall, the gas fills the gas-filled space because there is no leaking portion. After the gas is injected into the gas-filled space, when the portion indicated by the dotted line 69 is thermally welded below the extended gas injection port 60, the gas is sealed in the space between the gas-injected side walls.

Referring to FIG. 5, the manufacturing method will be described. FIG. 5A shows a state in which a cylindrical polyethylene sheet is first prepared and the cylindrical sheet is superimposed as shown in FIG. Heat welding is performed in a letter shape (a). An L-shaped upper portion 73 sandwiched between the heat-welded portions indicated by 71 and 72 communicates with a lower portion 74 of the tubular sheet. The outer portions 75 and 76 of the L-shaped upper portion 73 sandwiched between the heat-welded portions indicated by 71 and 72 communicate with the lower portion 74 by the space sandwiched by the two sheets. Not.

Next, both sides 77 and 78 of the superposed sheets in FIG. 5A are superimposed and thermally welded as indicated by 81 in FIG. 5B (b). And as shown at 82,
The lower portion 74 shown in (a) is thermally welded (b). In this state, in the bag formed of the two stacked sheets, the space between the two sheets on the side wall is a closed space except for the opening 73, that is, the gas inlet. And when it cuts so that it may become a shape as shown in FIG. 4, the storage bag shown in FIG. 4 is completed.

(Third Embodiment) Next, a third embodiment will be described with reference to FIG.

In FIG. 6, reference numeral 1 denotes a carrying portion, and 2 denotes a product storage portion. The customer puts a finger or hand into the gripping opening 91 of the handbag 1, and the customer grips the bag. For this purpose, the gas inlet 90 is provided in a part of the gripper 91. 92,
Numerals 93, 94, 95 and 96 are heat-welded portions.

One part of the gripper 91 has a gas inlet 90 between the heat-welded portions 92 and 93. And since each side wall surface is formed by two sheets,
The internal space between the sheets on the outside and the inside of the side wall surface closed by the heat welded portions 92, 93, 94, 95, 96 is a closed space except for the gas injection port 90. Therefore, when gas is injected between the two sheets on the side wall portion from the gas injection port 90, the gas fills the gas-filled space since there is no leaking portion. After the gas is injected into the gas-filled space, when the portion indicated by the dotted line 97 is thermally welded below the slightly extended gas injection port 90, the gas is sealed in the space between the gas-injected side walls.

Referring to FIG. 7, the manufacturing method will be described. In FIG. 7A, two polyethylene sheets 100 are prepared. With two sheets superimposed, 10
As shown by 2 and 103, a part of the sheet is heat-welded so that one part is linear and the other part is convex (a). (B) shows a state where heat welding is performed. 101
Is a two-ply sheet, and the front and back sheets are 10
The parts 2 and 103 are thermally welded. FIG. 7B is bent at the portion indicated by the one-dot chain line 104,
(C)), the portions of both sides 111 and 112 are thermally welded. (D) 113 and 114 are heat-welded portions of 111 and 112. Finally, when the portion indicated by the chain line 115 is cut, the storage bag shown in FIG. 6 is completed.

In particular, when mass-produced, it can be manufactured as shown in FIG. In FIG. 8A, the long 2
A sheet 121 made of polyethylene is prepared. In a state where the two sheets are overlapped, as shown by 102 and 103, heat welding is performed so that one of the sheets is linearly formed and the other is partially convex. (B)
FIG. 2 shows a state in which heat welding is performed. Reference numeral 122 denotes a two-ply sheet, in which front and back sheets are welded at portions 102 and 103. (B) The sheet is bent at the portion indicated by the one-dot chain line 123, and in the bent state, is thermally welded at 124 (FIG. 8 (c)). Finally, the portion indicated by the broken line 125 is cut, and the heat-welded portion 124 is cut in the middle to complete the storage bag of FIG.

(Fourth Embodiment) FIG. 9 shows a method of providing a storage bag of the present invention to a customer or the like in a supermarket or the like. The clerk 131 puts the product or the like into the above-described storage bag 132 after performing accounting or the like, and then inserts an air gun 134 serving as a gas supply device to inject gas from the gas injection port 133 into the above-described gas sealing space.

The air gun is generally called an air duster, and blows air from the tip of a pistol-shaped one. The air gun 134 is connected to a compressor 135, and compressed air is supplied from the compressor 135 to the tip of the air gun 134 via a pipe 136. When the clerk 131 uses the air gun 134 to sufficiently inject air into the storage bag 132, the clerk 131 prevents the air from leaking out of the gas injection port 133.
In order to heat-weld the gas injection port 133 while holding down 33, the gas injection port 133 is moved to a heat welding device 137 which is a sealing means, and the gas injection port 133 is heat-welded and sealed. As the heat welding device, a so-called welding sealer or heat sealer which is generally commercially available may be used.

Here, the clerk performs gas injection and sealing at a cash register or the like, but the customer may perform these operations.

The gas may be injected by using a means other than the air gun as the gas supply device, and a rubber band, an adhesive tape, or the like may be used as the sealing means.

Further, depending on the weight of the product put in the storage bag, gas may not enter the bottom surface of the storage bag, and a large amount of heat conduction may occur at the bottom surface, which may lower the heat retaining effect of the storage bag. In such a case, the clerk 131 places so-called corrugated cardboard or the like on the inner bottom surface of the storage bag before putting the product, and then puts the product. In this case, the heat insulating effect of the cardboard itself can be used on the bottom surface. It does not have to have a heat insulating effect itself, such as cardboard. For example, if the goods to be stored are box-shaped,
It may be a plate-like member having a projection partly. By laying the protruding portion so as to be on the bottom surface side of the bag, a gap is formed on the side wall surface that enters the bottom surface side so that gas enters. Thereby, a heat retaining effect or the like can be generated.

Therefore, as described above, the cashier clerk 1
Numeral 31 injects air or other gas from the gas inlet of the storage bag when necessary from a gas supply device including a compressor or the like installed beside. After the injection, by using a sealing device for heat welding, the injection port is heat-sealed to seal the gas in the storage bag, so that a storage bag capable of easily obtaining a heat retaining and cooling effect can be formed.

As means for closing the gas injection port of the storage bag described in the first to third embodiments and sealing the gas, the above-described welding by heat, sealing with a rubber band, an adhesive tape, or the like is used. In addition to the means, an adhesive or a sealing means such as a check valve provided inside the gas inlet may be used. When a check valve is used, when a gas is injected from a gas inlet, a sealing function is performed by the check valve thereafter, so that a separate sealing operation is not required.

If the inlet portion of the gas inlet is made longer, that is, the extended portion is made longer so that the portion to be resealed remains, the portion which has been once sealed and then heat-welded is cut to remove air. Even if the air is discharged, air or the like can be injected and sealed again so as to exhibit a heat retaining effect, so that the air can be reused.

Further, instead of injecting the gas from the gas inlet, a particulate material containing a gas such as air may be injected. As a result, gas is injected, and a heat retention effect and the like are exhibited.

The side wall surface of the storage bag is not 3 sheets but 3 sheets.
It may be formed using two or more sheets.

In some cases, a normal shopping bag needs to print a company name or the like. When a container such as a conventional cool box is used, it is expensive to separately print a company name or the like on the container. Alternatively, a bag with a company name printed thereon was separately prepared and a cool box or the like was put in the bag. However, according to the present invention, since the sheet is made of ordinary polyethylene or the like, it is easy to print a company name or the like. For example, printing can be performed at the stage of FIG. 2A, FIG. 5A, FIG. 7A, FIG.

Therefore, the bag of the present invention can be made of a single sheet, and is easy to recycle. As a result, it greatly contributes to the reduction of dust.

As described above, the storage bag of the present invention also has an effect of impact resistance, and is therefore effective in transporting fragile items.

[0044]

As described above, according to the present invention,
It is possible to provide an accommodating bag that is inexpensive and can easily obtain the effect of heat retention or the like when it is necessary to keep the temperature or the like.

Further, according to the present invention, it is possible to realize a method of providing a storage bag that easily produces a heat retaining effect or the like.

[Brief description of the drawings]

FIG. 1 is an external view of a storage bag according to a first embodiment of the present invention.

FIG. 2 is a view showing a part of a process of manufacturing the storage bag of FIG. 1;

FIG. 3 is a view showing a part of a process of manufacturing the storage bag of FIG. 1;

FIG. 4 is an external view of a storage bag according to a second embodiment of the present invention.

FIG. 5 is a view illustrating a process of manufacturing the storage bag of FIG. 4;

FIG. 6 is an external view of a storage bag according to a third embodiment of the present invention.

FIG. 7 is a view showing a process of manufacturing the storage bag of FIG. 6;

FIG. 8 is a view showing another process of manufacturing the storage bag of FIG. 6;

FIG. 9 is a view showing a method of providing the storage bag of the present invention at a cash register or the like.

FIG. 10 is an external view of a conventional shopping bag.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Carrying part 2 ... Storage part 6 ... Binding part 14, 23, 73, 133 ... Gas inlet 132 ... Storage bag 134 ... Air gun of a gas supply device 135 ... Gas supply device Compressor 136 ・ ・ ・ Pipe 137 ・ ・ ・ Heat welding device

Claims (3)

[Claims] An accommodating bag for accommodating goods and the like, wherein a side wall of an accommodating space formed inside the accommodating bag is constituted by at least two sheets, and the two sheets constituting the side wall are provided. A storage bag, characterized by having a space in which a gas can be sealed between sheets, having a gas injection port capable of injecting a gas between two sheets, and having a sealable gas injection port. 2. A gas supply means for supplying gas to the gas inlet of the storage bag according to claim 1, and a sealing means for sealing the gas injected from the gas inlet, wherein the gas supply means is provided. 2. The method for providing a storage bag according to claim 1, wherein after the gas is injected, the gas is sealed by the sealing means. 3. A method for providing a storage bag according to claim 2, wherein said gas is injected by said gas supply means after the goods and the like are stored in said storage bag.