JPH04121273U - Cushioning packaging bag - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] Even if one of the sealed bags breaks and releases air, the buffering effect of the air in the other sealed bags will not be affected. In addition, to provide a cushioning packaging bag in which a cushioning-requiring article is prevented from moving or escaping inside the packaging bag. [Structure] A gas inlet tube 2 with a gas inlet 6 at one end and closed at the other end is formed of a plastic film,
A plurality of flat sealed bags 3 made of plastic film each containing a check valve 4 are arranged in parallel, and the inlet pipe 2 and each sealed bag 3 are connected only through the flow path provided in each check valve 4. The base body 1 is constructed by connecting the sealed bags 3 together at their side edges, and the base body 1 is folded in half from approximately the middle of the introduction tube 2 along the introduction direction of the introduction tube 2. At the same time, by respectively gluing the folded edges of two of the three folded sides B, C, and D other than the folded part A, a bag is provided with an article insertion/ejection opening 20 on the non-adhesive edge. form.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is designed to safely store and transport stored items without damaging or destroying them. This invention relates to improvements in cushioning packaging bags.

0002

[Conventional technology]

Conventionally, this type of cushioning packaging bag has, for example, an air supply/discharge port equipped with a check valve. an air filling accommodating part formed oppositely to the air supply/discharge port in communication with the air supply/discharge port; A plastic container consisting of an article storage part with an insertion/removal opening formed between the air-filled storage parts. BACKGROUND ART BACKGROUND BACKGROUND BACKGROUND BACKGROUND BACKGROUND BACKGROUND BACKGROUND BACKGROUND ART Cushioning packaging bags made of film are known.

0003 In addition, although it is not yet publicly known, there is an outer bag and an inner bag made of airtight plastic film. and forming air-filling and enclosing portions facing each other that communicate only at the bottom sides of both bags. At the same time, the inner bag forms an article storage section with an insertion/ejection opening on the side opposite to the bottom. There is one air inlet that is connected to the packaging bag body and the edge of one of the insertion/removal openings of the main body. A flat piece made of an airtight plastic film that doubles as a cover for the insertion/ejection opening. It consists of an air introduction pipe with a flow path, and the air is filled and sealed in the main body. Glue the inlet part in a line across the bottom and the insertion/ejection opening in at least one place, and only on the bottom side. forming a plurality of independent air-filled and sealed compartments that communicate with each other; The flow paths of each of the sub-chambers and the air introduction pipe are configured to be able to communicate with each other separately via each check valve. A cushioning packaging bag for shipping has been developed which is characterized by the following characteristics.

0004

[Problem that the idea aims to solve]

However, in the former case of the above conventional example, the buffer packaging bag is formed of a single bag body. Therefore, if one part is damaged due to impact during transportation or other handling, the sealed air will be damaged. This is a serious problem where all of the product is released and the bag loses its usefulness as a buffer packaging bag. There is a problem.

[0005] In the latter case, one part of the air filling enclosure may be damaged and the filled air may be released. However, the air filled in the entire packaging bag is not released and functions as a cushioning packaging bag. Although it has the excellent advantage of being able to maintain The filling and enclosing part is a part of the air filling part located at the bottom of the bag and opposite to the other side of the packaging bag. Since it is in communication with the filling part, if one part of the air filling part on one side is damaged, it will be damaged. Because it is unavoidable to simultaneously release the air in a part of the air-filled part on the other side. However, there is a problem in that the cushioning effect as a cushioning packaging bag is still insufficient.

[0006] This invention was developed with the aim of solving the above problems. A cushioning packaging bag with multiple air-tight bags arranged in parallel on both sides of the storage compartment. Then, a part of the air sealed bag on one side was damaged and the air inside the sealed bag was released. Also, the air inside the sealed bag on the other side facing the sealed bag is not released at all, Therefore, we provide a cushioning packaging bag that can significantly improve the cushioning function of this type of packaging bag. The purpose is to

[0007]

[Means to solve the problem]

In order to solve the above problems and achieve the purpose, this invention uses gas at one end. A flat gas inlet tube with an inlet and the other end closed is connected to a plastic fibre. plastic tube on both sides along the gas introduction direction. Made of multiple plastic films each containing a flat check valve made of film. flat sealed bags are arranged in parallel in a row, and the inside of each sealed bag is By installing the above-mentioned check valves, a flow path with an introduction pipe and each sealed bag installed in each check valve. Each sealed bag is configured to be able to communicate with each other through a chisel, and each adjacent sealed bag is connected to its side edge. are connected together to form the base of the cushioning packaging bag, and this base is connected to the gas of the above-mentioned introduction pipe. Fold the introduction tube in half from approximately the middle part along the introduction direction, and By gluing the folded edges of two of the three folded sides, it is possible to create an unattached A shock-absorbing packaging bag characterized by having a bag body equipped with an article insertion/removal port on the outer edge of the bag. developed and adopted.

[0008] In addition, in the present invention, in the cushioning packaging bag configured as described above, it is possible to insert and remove articles. A cushioning packaging bag and a cover, characterized in that a cover piece for the insertion/ejection port is provided on the rim of the mouth. Apply adhesive to the inner surface of the closing piece, and attach release paper to the surface of the adhesive so that it can be attached and removed. We have developed and adopted cushioning packaging bags that are characterized by the fact that

[0009]

[Effect]

Since the cushioning packaging bag according to the present invention is constructed as described above, its introduction tube is When air is supplied from the inlet 6 of 2, the air flows through the multiple Each sealed bag 3 is filled and sealed separately through the flow path of the check valve 4, and each sealed bag 3 is filled and sealed. It is inflated to form a cushioning packaging bag having a plurality of inflated sealing bags 3 facing each other on both sides. .

0010 As mentioned above, after or before inflating each sealed bag 3 with air, When the cushioning-requiring article a is inserted through the insertion/removal port 20, the inserted article a will expand into each sealed bag 3. It will not be pinched by the surroundings due to pressure and will not move or escape from the insertion/ejection port 20. .

[0011] In addition, since each sealed bag 3 has an independent air sealing function, one part of the sealed bag 3 is Even if the sealed bag 3 is damaged and air is released, it will not affect the cushioning effect of other sealed bags 3 at all. Don't come.

0012

【Example】

Below, an embodiment of the present invention will be described based on the accompanying drawings. is the base of the cushioning packaging bag according to the present invention, and in this example, two rectangular sheets are used. Thermoplastic plastic films (sheets) are overlapped, and the parts described below are A flat gas introduction tube 2 formed by fusion, and a gas introduction direction (longitudinal direction) of the introduction tube 2. A plurality of sealed bags 3 are arranged in parallel on both side edges along the It is composed of a check valve 4 installed in each sealed bag 3 at the construction edge.

[0013] The introduction pipe 2 is made of two overlapping rectangular plastic films. Two strips are fused at the required interval, with the strips perpendicular to the approximately middle part of the long side of the frame. A blank formed on one long side between the fused parts 5, 5 and these two fused parts. Between the gas inlet 6 consisting of the fused portion and the two fused portions 5, 5, the other It consists of an elongated flat tubular body with a closed part 7 fused on the long side of the body. .

[0014] Next, the pipes are connected in parallel on both sides of the introduction pipe 2 along the gas introduction direction (longitudinal direction). The installed plurality of sealed bags 3 are continuously fused from the two fused parts 5, 5 of the introduction tube 2. surrounded by horizontally long fused parts 8, 8 in the long side direction and short width fused parts 9 in the short side direction, respectively. The sealing bags 3 formed on both side edges of the introduction tube 2 are as shown in this embodiment. In this case, the size, shape, and number are the same, and therefore the density on both sides is The group of sealing bags 3 is formed symmetrically.

[0015] In addition, the short width fused portion 9a with the introduction tube 2 facing the short width fused portion 9 of each sealing bag 3 is not fused at the position corresponding to the middle part of each sealed bag 3, and this non-fused The part 9b allows each check valve 4 described below to be installed in each sealed bag 3. Therefore, the introduction pipe 2 and each sealing bag 3 are connected only through the flow path of each check valve 4. It is configured to allow communication.

[0016] In addition, each check valve 4 is made of polyethylene film, etc., as shown in FIGS. 6 to 11. Two flexible and thin thermoplastic plastic films 10 and 11 are overlaid. and linear fused parts 12, 12 are provided on both longitudinal edges thereof by heat welding means. A check valve body 16 is provided with a gas passage 15 having upper and lower openings 13 and 14. In the lower half of the flow path 15, a rectangular top 17 is attached to the check valve body 16. A mountain-shaped fusion is performed by heating welding means while the device is placed facing the upper opening 13. In this embodiment, the fused portion 18 has a rectangular outline. The fused portion 18 extends diagonally to the lower half of the channel 15 on both sides. The first branch flow paths 15a and 15a of the fluid are connected to each other to constitute a flat check valve 4. In the figure, 19 is a longitudinal section attached to the lower middle part of the mountain-shaped fused portion 18. A welded part extending to the lower side of the check valve body 16 provided by heat welding means in the direction; 15b, 15b are the air holes formed at the lower part of the check valve main body 16 by the fused portion 19. A second branch flow path communicating with the inside of the sealed bag 3 of the body is shown.

[0017] Each check valve 4 configured as described above is connected to the introduction pipe 2 and each seal as shown in FIG. Insert into each sealed bag 3 via the unfused part 9b of the continuous part (fused part 9a) of the sealed bag 3. The outer edge of the upper opening 13 of the flow path 15 of the check valve 4 is inserted into both sides of the unfused portion 9b. It is installed inside each sealed bag 3 by fusing 9c to the side surface, but Therefore, each sealed bag 3 has an upper opening 13, a lower opening 14, and a third opening of the flow path 15 of the check valve 4. The introduction pipe is passed through the first branch channel 15a, 15a and the second branch channel 15b, 15b. In this way, a plurality of sealed bags 3 are connected to the check valve 4 on both side edges of the introduction pipe 2. Substrates 1 of cushioning packaging bags arranged in parallel so that they can communicate with each other only through the respective channels. It is composed of (See Figure 1).

[0018] Then, the base 1 of the cushioning packaging bag constructed as described above is inserted into the air of the introduction tube 2. Fold the introduction tube 2 in half from the middle part along the body introduction direction, and Any two of the outside folded three sides B, C, and D, the folded edges of C and D. By fusing them, an insertion/ejection opening 20 for the article a is opened at the unfused edge. In this way, one side is provided with a gas introduction pipe 2, and It consists of a cushioning packaging bag in which both sides are formed by the juxtaposed surfaces of the sealed bag 3, as shown in Fig. 1. 2, reference numeral 21 denotes a cover piece connected to one edge of the insertion/removal port 20, and 22 denotes a cover piece. The adhesive 23 is applied to the inner surface of the closing piece 21, and the release paper (release paper 23) is attached to the surface of the adhesive. paper release).

[0019] Next, the state of use of the cushioning packaging bag configured as described above will be explained. i.e. use In this case, after inserting the cushioning-required article a into the packaging bag from the insertion/removal port 20 of the packaging bag, Alternatively, each sealed bag 3 is filled with gas before insertion, but in that case, the introduction tube All you have to do is insert the air supply port of the air supply device into the introduction port 6 of 2 to supply air, and the supplied gas is First, through the introduction pipe 2, each of the above-mentioned flow paths of the check valve 4 of the sealed bag 3 located at the innermost part is connected. Then, the double-sided sealed bags 3, 3 are filled, and each double-sided sealed bag 3, 3 is filled sequentially from the back. 3 and inflate each sealed bag 3, 3 of this group on both sides, as shown in FIG. Cushioning packaging with rich cushioning properties, consisting of three groups of sealed bags that inflate the entire inner and outer circumferential surfaces. You get a bag.

[0020] A cushion-required article inserted through the insertion/removal port 20 into the swollen packaging bag as described above. a is securely clamped and held by the expansion pressure of each sealed bag 3, as shown schematically in FIG. Therefore, there is no risk of it moving accidentally inside the packaging bag or escaping from the insertion/ejection opening 20, and it provides good cushioning. Although it is packaged in a state that If the opening 20 is covered and closed, the escape prevention effect of the packaged article a is further improved.

[0021] In addition, after the above-mentioned buffer packaging, some of the sealed bags 3 were damaged and the internal filling gas was released. Even if there is a problem, the gas filled in the other sealed bags 3 will not be released at all. As a result, the overall cushioning properties of the packaging bag are maintained well, ensuring that the intended purpose of the cushioning packaging is achieved. Wear. Although not shown, additional notes such as kraft paper etc. are added to the entire outer surface of this cushioning packaging bag. If you attach a strong paper with strong properties, you can improve the strength of the bag as a cushioning packaging bag. Since you can write the sender's and recipient's address, name, etc. on the front, you can use the cover piece 21. By covering and closing the insertion/ejection port 20 using the It will be possible to use it.

[0022] Although the main embodiments of the present invention have been described in detail above, the present invention is limited to the above embodiments. The scope is not limited to the extent that the purpose of the invention can be achieved and does not deviate from the gist of the invention. It goes without saying that various design changes can be made within the scope.

[0023]

[Effect of the idea]

The cushioning packaging bag according to the present invention is constructed as described above and used as described above. As a result, the following excellent effects can be achieved.

[0024] (1) Each seal is sealed by supplying gas from one inlet provided in the inlet pipe. All bags can be filled with air and sealed, and each sealed bag is equipped with a separate check valve. Therefore, even if one sealed bag breaks and releases air, the sealed air in other sealed bags will not be released. The bag will not be damaged and can fully maintain its function as a cushioning packaging bag.

[0025] (2) Packaged items are securely cushioned from the entire outside by the inflation pressure of each inflated sealed bag. Because it is held in the packaging bag, there is no chance of it moving around inside the packaging bag or escaping from the insertion/ejection opening. and is sufficiently protected from external impact so that it will not be damaged.

[Brief explanation of drawings]

FIG. 1 is a partially omitted perspective view showing one embodiment of the cushioning packaging bag of the present invention.

FIG. 2 is a developed plan view showing the base of the cushioning packaging bag shown in FIG. 1;

3 is a partially cutaway enlarged perspective view showing a portion of the cushioning packaging bag shown in FIG. 1; FIG.

4 is a perspective view of each sealed bag of the cushioning packaging bag shown in FIG. 1 in a state where air is filled and sealed; FIG.

FIG. 5 is an explanatory diagram schematically illustrating a state of buffer packaging of an article.

FIG. 6 is a front view showing one example of a check valve used in the present invention.

7 is an enlarged sectional view taken along line A-A in FIG. 6, with a portion omitted; FIG.

8 is an enlarged sectional view taken along line BB in FIG. 6. FIG.

9 is an enlarged sectional view taken along line CC in FIG. 6. FIG.

10 is an enlarged sectional view taken along line DD in FIG. 6. FIG.

11 is an enlarged sectional view taken along the line EE in FIG. 6. FIG.

[Explanation of symbols]

1 Base of cushioning packaging bag 2 Introductory tube 3 Sealed bag 4 Check valve 6 Inlet 7 Occlusion 20 Insertion/ejection port 21 Covering piece 22 Adhesive 23 Release paper (release paper) B Bend part B. C. D Three folded sides

Claims (3)

[Scope of utility model registration request] Claim 1: A flat gas introduction tube with a gas introduction port provided at one end and closed at the other end is formed of a plastic film, and both edges of the introduction tube along the gas introduction direction are covered with plastic film. A plurality of flat sealed bags made of plastic film each having a flat check valve inside thereof are connected together in parallel, and the check valve is installed in each sealed bag at the edge of the connected bag. In this way, the introduction pipe and each sealed bag are configured to be able to communicate with each other only through the flow path provided in each check valve, and each adjacent sealed bag is connected together at its side edge to provide a buffer. constitutes the base of the plastic packaging bag,
This base body is folded in half from approximately the middle of the introduction tube along the gas introduction direction of the introduction tube, and the folded edges of two of the three folded sides other than the folded portion are folded. 1. A shock-absorbing packaging bag characterized in that a bag body is formed by adhesion to provide an article insertion/removal port on the non-adhesive edge. 2. The cushioning packaging bag according to claim 1, further comprising a cover piece for the insertion/ejection opening of the article, which is connected to the rim of the insertion/ejection opening. 3. The cushioning packaging bag according to claim 2, wherein an adhesive is applied to the inner surface of the covering piece, and a release paper is attached to the surface of the adhesive in a detachable manner.