JP2006117311A - Air shock absorbing material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide in a less-expensive manner an air shock absorbing material capable of easily packaging through a convenient operation packaged items showing different sizes or shapes and further capable of being adapted for either transportation or storage of longer hours under a severe environment. <P>SOLUTION: This air shock absorbing material is made such that lateral edges forming end portions of outer frames of two-overlapped synthetic resin films are heat melted and adhered to each other, each of side edges crossing an intermediate part between the lateral edges and divided into a plurality of segments in correspondence with sizes and shapes of packaged items and segment edges longitudinally crossing an intermediate part between the side edges so as to cross the side edges and divided into a plurality of segments in correspondence with sizes and shapes of packaged items is heat melted and adhered to each other, air shock absorbing material having a plurality of air chambers of different sizes divided by the lateral edges, side edges and segment edges is formed, the packaged items are loaded into a predetermined packaging container after the air shock absorbing material is internally set to the container, air is fed at air feeding ports arranged at the lateral edges of the air shock absorbing material to expand the entire air chambers, the packaged items are stored while its inner side is press contacted with the packaged items and its outer side is press contacted with the inner walls of the packaging container. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a packaging member for transporting a packaged body having various shapes, such as medical equipment, various precision machine parts, semiconductor products, glass products, and the like. It is a cushioning material for interposing between the transport containers and protecting the package body from external forces such as impacts, and packing the package body consisting of various products and parts whose shape and dimensions are not particularly determined, The present invention relates to an air cushioning material that is suitably used when transporting in different environments over a long period of time.

  Conventionally, foamed polystyrene molded products have been used for packing regular-sized mass-produced products. As packing materials or cushioning materials for a wide range of applications, newspapers and cloth, chip-shaped foamed polystyrene, bubble film, etc. It was useful because it could be used regardless of shape.

  However, in each of the above-mentioned cushioning members, for example, a molded product of polystyrene foam is used corresponding to each product. Therefore, after use, it is not possible to change applications other than disposal, and versatility. Even in chip-like foam polystyrene, bubble sheets (air caps) and newspapers and cloths that are excellent in the case of final disposal as waste, it becomes a considerable amount, from the viewpoint of global environmental protection and energy saving in recent years, It is a problem that cannot be overlooked easily.

Therefore, recently, a bag-like air cushioning material (for example, a bag-like air cushioning material provided with an air inlet having a special check valve function at one end thereof is formed into a bag-like shape by heat-sealing the outer edges of the two synthetic resin films. ), And an air mat-like cushioning material (for example, see Patent Literature 2) comprising a plurality of small air chambers provided with a linear or dotted welding wire inside the bag-like cushioning material. Already widely used as a bag-like air cushioning material made of a thin film synthetic resin in which an air pressure of 3 Kpa / cm ^{2 to 5} Kpa / cm ² is enclosed. This bag-like air cushioning material has excellent properties as a protective packaging for various parts and products while maintaining versatility as a packaging material, as a gap filling material for general goods, and as a cushioning material for materials. In addition, it is folded into a sheet when not in use, the storage space is compact, the disposal process is easy, and it is easy to use.

  However, the synthetic resin bag-like air cushioning material has excellent characteristics as described above as a substitute for chip-shaped foamed polystyrene and bubble sheets for cargoes consisting of various types of parts and products having various shapes. However, it is difficult to stably package precision parts with a specific shape with a square or polygonal outer shape, glass products that are vulnerable to impact, or easily damaged cylindrical or columnar cargo, etc. When transporting under conditions, there is some concern about its reliability, and in order to wipe it off, a larger amount of bag-like air cushioning material will be used, resulting in an increase in the size of the transport container. In order to compensate for various gaps between the product to be transported and the packaging container, the bag-like air cushioning material is desirably individually compact, and the air to be sealed is also at a relatively low pressure. It has been requested is. Therefore, when transporting and storing for a long time in an area where the temperature changes drastically, for example, in a cold region, the air pressure of the bag-like air cushioning material decreases, or conversely, the bag-like air cushioning material bursts in a high-temperature zone. New problems have arisen, such as the loss of function as a cushioning material.

Recently, there have been many proposals for air cushioning materials that provide a stable cushioning function by wrapping cargo such as precision parts with air cushioning materials and interposing them with the transport container. The air cushioning material made of synthetic resin having a plurality of long air chambers that extend in the horizontal direction and the long air chamber are bent into a cylindrical shape, and finally the partial welded portion is bent to be packed. An air cushioning material (see, for example, Patent Document 3) that covers the entire body with the air chamber and an air chamber called a vesicle continuous in the left-right direction are provided, and when the air is filled, an intermediate portion and both ends of the air chamber A wrapping type air cushioning material (see, for example, Patent Document 4) in which a step is formed at the boundary with the portion is proposed. In the former, the packaged material is completely wrapped by the cushioning material, and in the latter, by the stepped portion. Packaged Guests crowded wrapped while supporting the periphery of the air cushioning material system for clamping the left and right have been proposed in some cases.
Japanese Examined Patent Publication No. 7-117171 (pages 1 to 3, FIG. 2) Japanese Utility Model Publication No. 6-37149 (pages 1 to 5, FIG. 4) JP 2003-137352 A (pages 1-8, FIGS. 1-15) JP 2003-63567 A (pages 1-7, FIGS. 1-7)

  Normally, when various products are transported for a long time by ship or airplane, they are transported by a container. However, the collapse of cargo in this container is not detected in appearance, so there is a concern that it may cause a major accident. Therefore, sufficient consideration is required for the packaging, and in particular, its reliability is emphasized. Therefore, the air cushioning material for preventing the collapse of the load is not limited to the above improvement as an air cushioning material, and a double structure composed of an outer bag and an inner bag is used. For example, unexposed kraft paper, Using PE bags for inner bags, using unbleached kraft paper in triplicate, using inner bags as PE bags, or using PA / PE / PA laminates, In either case, an air cushion formed in a pillow shape is used.

  When a product or a motorcycle packaged in, for example, a cardboard box is packed and transported by this pillow-like air cushioning material, stress may concentrate on the central portion of the air cushioning material to form a convex shape. Since there is a concern that the air cushioning material may be deformed in a convex shape, it may cause damage to cargo such as products.Therefore, reinforced cardboard or the like is further interposed between the inner wall of the container and the cargo so that the cargo and the container However, the reinforced corrugated cardboard used is expensive, and so-called Schwaling costs including it are soaring, which is a problem that is desired to be solved immediately. In addition, although used packaging containers are attracting worldwide attention as a waste problem, the air cushioning material used in combination with a wide variety of materials is not desirable from the viewpoint of recycling or incineration. The air cushion formed by is a strong demand in the field.

  On the other hand, the conventional air cushioning material is formed in advance with an air chamber corresponding to the shape of the packaged body, and after the air is injected, the packaged body is installed inside, and then the air cushioning material is installed in the packaging container together. By this, it has the structure which interposes between a packing container inner wall and a to-be-packaged body, and protects a to-be-packaged body. It is difficult to carry out the work of storing the air cushioning material that has a certain weight and that is packed with various forms of packing materials and that is inflated by a predetermined air pressure in a packing container of a specific shape. It was a great hindrance to work efficiency. In addition, since the air cushioning material itself is sealed inside the packaging container together with the packaged body, if the air cushioning air pressure fluctuates according to changes in the outside air temperature during storage or transfer, it will be handled There was no means, and it was a big problem to be solved. In order to solve the problems remaining in the prior art, the present invention adds further improvements to the above prior art, and provides an air cushioning material that can be used for various packages in spite of its compact structure. In general, an air cushioning material of a size and shape that can be properly interposed between the packaged body and the packaging container is formed, and the interior of the packaging container is filled with air uninjected, and then the packaged body is loaded. After that, by packing air into the air cushioning material and expanding it to the specified air pressure, the packaging work is remarkably improved in efficiency, and it can be stably packed even during storage or transportation under harsh conditions. An object of the present invention is to provide an air cushioning material capable of protecting the air at low cost.

  An air cushioning material according to the present invention for solving the above-described problems is interposed between a packaged body to be packed and an inner wall of a transport container, and protects the packaged body from an external force such as an impact. In the material, the side edges that form the end of the outer frame of the synthetic resin film that is made of two sheets are heat welded, and the middle part between the side edges is crossed to accommodate the dimensions of the package A plurality of side edges, and an intermediate portion between the side edges vertically cut so as to intersect the side edges, and divided into a plurality of sections corresponding to the size and shape of the packaged body, Are formed by heat welding, forming an air cushioning material having a plurality of air chambers having different dimensions divided by the side edge portion, the edge portion and the partition edge portion, and installing the air cushioning material in a predetermined packing container. After that, the package body is inserted, and then the air injection provided at the side edge of the air cushioning material More air was injected to inflate the entire air chamber, the inside object to be packaged, it is an characteristic configuration requirements that housing as allowed to press the outer to the inner wall of the packaging container.

  In the air cushioning material according to the present invention, it is preferable that a protective sheet made of the same kind of synthetic resin film or nonwoven fabric is formed on the inner side of the inner synthetic resin film in contact with the packaged body. .

  Furthermore, in the air cushioning material according to the present invention, the side wall for fixing the position of the packaged body at a predetermined position on the left and right side surfaces in the longitudinal direction of the air chamber with the same type of synthetic resin film or non-woven fabric as the air chamber. It is preferable to provide a portion.

  In the air cushioning material according to the present invention, it is preferable that the two-layer synthetic resin film forming the air chamber is a rectangular synthetic resin film made of the same material.

  In the air cushioning material according to the present invention, each formed air chamber is in communication with each other via an air flow passage or a flow path, and the air flow passage and each air chamber are connected by a check valve. It is what.

  In the air cushioning material according to the present invention, a check valve is attached to an air inlet provided in the side edge portion.

  In the air cushioning material according to the present invention, it is preferable that a separate air injection valve is attached to the air inlet provided in the side edge portion, and the air inlet is thermally welded after the air is injected. .

  Furthermore, in the air cushioning material according to the present invention, it is preferable that the synthetic resin film forming the air chamber is a film made of PE / PE cloth / PE or PP / PP cloth / PP.

  In the air cushioning material according to the present invention, it is preferable that the material of the nonwoven fabric forming the protective sheet and the side wall portion is selected from synthetic resin fibers such as polyamide fibers, polyester fibers, and polypropylene fibers. .

  In the air cushioning material according to the present invention, it is preferable that an antistatic agent is mixed into the synthetic resin film constituting the material.

  The air cushioning material according to the present invention includes the size and shape of cargo (hereinafter, simply referred to as “packaged body”) such as various products and parts that are packaged bodies, and a packaging container that stores the packaged body. For example, an air cushioning material itself is formed in accordance with the dimensions and shape of a cardboard box, a wooden box, etc., and the air cushioning material before air injection is installed in the packaging container, and then the packaged body is inserted into a predetermined position. Then, by injecting air from the air inlet of the air cushioning material, it is a basic constituent requirement that each air chamber forming the cushioning material is expanded to a predetermined air pressure and stored. That is, the side edges that form the ends of the outer frame such as the upper and lower sides and the left and right sides of the synthetic resin film formed by combining the two sheets are thermally welded, and the intermediate portion between the side edges is traversed. The edge part divided into a plurality corresponding to the dimensional shape and the intermediate part between the edge parts are vertically cut so as to intersect the edge part, and divided into a plurality corresponding to the dimension shape of the packaged body. The air buffer material having a plurality of air chambers having different dimensions divided by the side edge portion, the side edge portion, and the partition edge portion is formed by heat welding the respective edge portions. After the interior of the packaging container, the package body is inserted, and then the entire air chamber is expanded by injecting air from the air inlet provided at the side edge of the air cushioning material, and the inside of the package body is packed. In addition, it is essential to store the outer side of the container so that the outer wall is pressed against the inner wall of the transport container. Air cushioning material according to the present invention is provided.

  The air cushioning material according to the present invention configured as described above injects air in advance to expand the air chamber to a predetermined air pressure, and stores the packaged body so as to hold the packaged body inside. Unlike conventional air cushioning materials that store the air cushioning material in the packaging container, the air cushioning material is installed in the packaging container before the air is injected, that is, just a two-layer film. After entering, air is injected and each air chamber is expanded to a predetermined air pressure, so that the efficiency of the packing operation for storing the packaged body in the packing container is remarkably improved. In addition, when it is used for storage and transportation in a severe environment where the temperature changes remarkably, it is possible to adjust the internal pressure easily and flexibly by providing an air inlet on the outside of the packaging container. Thus, stable transportation and storage of the packaged body in a safe and healthy state is ensured for a long period of time. Moreover, since the air cushioning material by this invention is provided with an appropriate air chamber according to the dimension and shape of a to-be-packed body and a packing container, it is packed with the to-be-packed body to be packed, a packing container (cardboard box etc.) inner wall, The contact area with the air chamber can be arbitrarily controlled. Therefore, by injecting air from the air inlet provided at the side edge of the air cushioning material, the air chamber is expanded, and the inside is pressed against the cargo and the outside is pressed against the inner wall of the packaging container. When functioning as a cushioning material, it is possible to obtain a large contact area with each other, so stress concentration is avoided in advance and a stable cushioning function is ensured.

  In addition, the air cushioning material according to the present invention has individual air chambers and air flow passages communicated with each other by a check valve, so that even if a trouble occurs in any one of the air chambers, Since the other air chambers are maintained in a healthy state, damage can be minimized. The air cushioning material according to the present invention protects a packaged body firmly and individually by storing the packaged product in a specific packaging container, such as a cardboard box, for example. Even when this occurs, it is guaranteed that the packaged body itself is protected in a healthy state.

  As described above, the air cushioning material according to the present invention basically has a simple structure, but the size of the synthetic resin film is arbitrarily changed according to the size and shape of the packaged body. It is possible to easily handle literally a variety of packaged bodies by arbitrarily increasing or decreasing the number of sections. In addition, the air cushioning material is packed so as to grip each essential part from the side and top and bottom with the packing container, and is interposed so as to provide a certain gap between the cargo and the packing container. Even if the pressure of the air chamber decreases due to a change in the atmospheric pressure and the buffering effect becomes slight, the cargo can still be protected from the impact. Further, by forming a protective sheet of the same kind of synthetic resin film or nonwoven fabric on the inner side of the air cushioning material according to the present invention, the surface of the air chamber in contact with the packaged body is reinforced, while the length of the air chamber is By providing a side wall portion for specifying the position of the packaged body with a synthetic resin film or nonwoven fabric of the same type as the air chamber at a predetermined position on the right and left side surfaces in the direction, the left and right shift of the packaged body is obviated. Stable protection is ensured.

  The above-mentioned air cushioning material according to the present invention is further freed at any arbitrary position by using two films of the same material, specifically, PE / PE cloth / PE or PP / PP cloth / PP as desired. Since it can be heat-welded, it can be processed as described above, and since it is the same material, maintenance such as repair is easy, and it can be recycled and used effectively after use. As expected, the air cushioning material according to the present invention has an extremely compact structure, so that the cost for storage and transportation when not in use is reduced, and it is unavoidable even when incinerated. There is little possibility of the generation of harmful substances, and sufficient consideration has been given to environmental protection as well as effective use of resources.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings and embodiments. However, the present invention is not restricted thereby, and design changes can be freely made within the scope of the gist of the present invention.
FIG. 1 is a perspective view showing a state of two front and back synthetic resin films made of PE / PE cloth / PE forming an air cushioning material according to an embodiment of the present invention before injecting air to form the cushioning material. 2 is a partially enlarged perspective view for explaining the structure around the air flow passage in the air cushioning material, FIG. 3 is a perspective view showing the structure of a check valve alone used in the embodiment, and FIG. FIG. 5 is a partially enlarged perspective view showing the structure of a check valve as an air inlet and a check valve attached to the left and right air chamber inlets through the air flow passage and the air flow passage. FIG. 6 is a perspective view schematically showing the appearance of a state in which an air cushioning material is formed by injecting air together with a packaged body in a cardboard box as a packaging container, and FIG. 6 is an air cushion according to another embodiment of the present invention. In a material, the state which inject | poured air and formed the buffer material is shown typically. FIG. 7 is a perspective view schematically showing a laminated state of a synthetic resin film forming an air chamber in an air cushioning material according to still another embodiment of the present invention.

  The air cushioning material 1 according to the first embodiment of the present invention is a packaging container in which a rectangular precision electrical apparatus (not shown) whose dimensions of a packaged body are a width of 600 mm, a length of 1000 mm, and a height of 400 mm is used. It is intended to provide an air cushioning material that is stored in a cardboard box and loaded into a container for transportation. A PE80 / PE14 × PE14 / PE80 polyethylene film is used as the material, and as shown in FIG. The film 10 is cut into a width of 1200 mm and a length of 1000 mm and overlapped with each other, and the side edge 2 that forms the outer frame of the film 10 is located inside the side edge 2, and the side edge 2 A marginal portion 3 that is divided into 12 equal sections across the space, and a marginal portion 4 that is vertically sectioned so as to intersect the marginal portion 3 between the marginal portions 3 to be divided into three chambers, respectively, are thermally welded. did. At this time, each of the air chambers 8-1 divided into three chambers by the edge portion 4 that vertically cuts to intersect the edge portion 3 is communicated by the flow path 4-1, and on the other hand, 12 by the heat welding. Each of the equally divided air chambers 8 is substantially divided into left and right by an air flow passage 7, and the air flow passage 7 and each air chamber 8 are 40 μ thick polyethylene valve film 13 as shown in FIG. The three air chambers 8 and 8-1 in the center are respectively connected through the flow path 4-1, but are connected to the left and right through the air flow passage 7 respectively. The divided air chambers 8 are independent of each other via a check valve, and at the same time, the end portion 7-1 of the air flow passage is sealed by heat welding. −1, the check valve 5 functions and the other air chambers 8 and 8 And it has a structure that does not spread to the 1. Note that the check valve 5 used in this example is provided with a heat-resistant printing section 13- by applying heat-resistant printing in advance to the air supply / exhaust port 5-1 communicating with the air flow passage 7 as shown in FIGS. 1, a check valve 5a, which is processed so as not to be thermally welded, and attached as an air inlet 6, is partially heat-resistant printed inside the air supply / exhaust film 5a-1 as shown in FIG. Forming a printing part 5a-2 by applying air, and after the air is injected, only the seal part 5a-3 not subjected to heat-resistant printing is partially thermally welded, thereby maintaining airtightness as an air cushioning material, and It has become. That is, the check valve 5a for the air inlet 6 in this example does not guarantee 100% reliability in the sealing degree after the air injection. Therefore, by partially applying heat welding to compensate for this, It is configured to ensure maintenance. Each edge 2 and section 3 can be folded back, and air is injected from the air inlet 6 to inflate the entire air chambers 8 and 8-1, and the inside is covered with a packaged body and the outside is covered. It functions between the packing body and the inner wall of the packing container to form a buffer body by the air chambers 8 and 8-1. In this example, an air inlet 6 incorporating a check valve 5 is attached to a predetermined side edge 2 of the air cushioning material 1, and the air inlet 6 is provided in a cardboard box 9 that is a packaging container. It is designed to be drawn out from the opening 9-1.

The air cushioning material 1 according to the present example prepared as described above is fitted to a predetermined cardboard box 9 and a predetermined folded portion at the edge 3 or the edge 4 is formed at the corner of the inner wall of the cardboard box 9. At the same time, an air inlet 6 containing a check valve 5 mounted in advance on a predetermined side edge 2 is inserted into an opening 9-1 formed in advance in the cardboard box 9 and pulled out to the outside. Complete, then insert the precision electrical equipment to be packed into place,
Thereafter, air is injected through the air injection port 6 and expanded until the internal pressures of all the air chambers 8 and 8-1 become 5 Kpa / m ² , so that the air cushioning material in this example as shown in FIG. Completed packaging of precision electrical equipment according to 1. At this time, it is optional whether the upper lid portion of the cardboard box 9 is closed and sealed before air injection, or after the air is injected, the packaging state is checked and the upper lid portion is closed and sealed. In this way, the air cushioning material 1 according to the present example in which the precision electrical equipment is housed in the cardboard box 9 embeds precision electrical components inside, and presses the outside on the inner wall of the cardboard box 9 so as to be stable. It was confirmed that they protected. Further, in the above-described packing operation in this example, the air cushioning material 1 before air injection is installed in a corrugated cardboard box 9 which is a packing container, and then the packaged body is inserted into a predetermined position, and then air is injected to air. Since the cushioning material 1 is expanded, the working time is greatly shortened as compared with the conventional method, and a relatively heavy precision electrical device can be easily accommodated in the cardboard box 9.

  As shown in FIG. 6, the longitudinal direction is divided into 16 chambers by the edge portion 3a, and air chambers 8a are formed by cutting the left and right end portions to predetermined dimensions for every four chambers. Side walls 12-1 and 12-2 made of a polyethylene film were formed on both side surfaces of which the left and right end portions were cut to a predetermined size, by providing an air chamber 8a-1 extending through the portion 4a. The extended air chamber 8a-1 and the air chamber 8a connected to the extended air chamber 8a-1 are communicated by a flow path 4a-1 provided in the partition edge 4a, and are divided into 16 equal parts by the edge 3a. Is divided into left and right through an air flow passage 7a formed in the center, and each divided air chamber 8a is bound to the air flow passage 7a by a check valve 5a. The air cushioning material was formed in substantially the same manner as in Example 1, and the precision electrical component as a packaged body was packed in the same manner as in Example 1. In the cushioning material according to this example, the side wall parts 12-1 and 12-2 function as a guide in the packing operation, facilitate positioning of the packaged body, prevent left and right displacement of the packaged body even after packing, It was confirmed that the air chamber 8a-1 extended to the left and right effectively protects the side wall.

  As shown in FIG. 7, air is formed in the same manner as in Example 1 except that a protective sheet 13 is formed of a nonwoven fabric made of polypropylene fiber on the inner side of the two-layer polyethylene films 10 a and 10 b forming the air cushioning material. A cushioning material was prepared, and packing work was performed in the same manner as in Example 1. As a result, it is confirmed that the protective sheet 13 is in contact with the acute corner portion of the packaged body inside the air cushioning material and functions sufficiently to prevent the air chamber from being damaged by friction or the like. It was.

  In another embodiment according to the present invention, a separate air injection valve is attached to an air inlet for injecting air into the air cushioning material, and air is injected to a predetermined air pressure via the air injection valve. Thereafter, the air inlet can be sealed by heat welding.

  The air cushioning material according to the present invention in the above embodiment is used by combining two sheets of PE80 / PE14 × PE14 / PE80 as materials, but according to the present invention, the two sheets of synthetic resin are the same material. This is a preferred embodiment, and is not particularly limited as long as it has properties conforming to the above-described embodiments. PE / PE cloth / PE and PP / PP cloth / PP are subjected to maintenance or incineration. When considering environmental protection problems, it can be recommended as one of the preferred materials.

  In the air cushioning material of the present invention, the shape of the air chamber in the above embodiment is substantially square, but is not limited to this in practice, and in accordance with the shape of the object to be packed. The shape of the edge portion may be circular, semicircular, or polygonal, and can be freely selected. Thus, in the present invention, it is possible to freely form the shape of the cushioning material according to the shape and dimensions of the packaged body, thereby exhibiting an excellent cushioning function, thereby saving resources and energy. The effect can be exerted even in the area of environmental protection.

  As another embodiment of the present invention, an antistatic agent is previously mixed in the above synthetic resin film for forming a buffer material, specifically, PE / PE cloth / PE, PP / PP cloth / PP, etc. It is also one of the preferred embodiments that an air cushioning material is formed using a, preventing charging of a product or the like to be packed, and preventing dust from being attached thereto. The component used as the antistatic agent is not limited in the range within which the object of the present invention can be achieved, but the synthetic resin constituting the raw material of the air buffer material of the present invention, specifically, the high molecular polyethylene resin A polymer antistatic agent, more specifically a polymer having an organic acid, a sulfonic acid, an organic ammonium salt, or the like, which can be easily mixed in the liquid crystal and the like and does not impair the object of the present invention is preferably selected.

  As is clear from the above-described embodiment, the air cushioning material according to the present invention is simply built in a packaging container with a synthetic resin film of two sheets before injecting air, and then the packaged body is inserted into a predetermined position. Since air is injected in stages and the form of the inner packaging by the air cushioning material is completed, the packaging operation is extremely easy and simple. In addition, since the air inlet to the air cushioning material is configured to exist on the outside of the packaging container, immediately respond to changes in the internal pressure of the air chamber that constitutes the air cushioning material due to environmental changes, etc. Therefore, the risk of increasing internal pressure and preparing for environmental changes can be avoided. In addition, the air cushioning material according to the present invention has an essential requirement to form the form of the air cushioning material according to the shape and dimensions of the packaged body and the packaging container. There is no risk of vertical and horizontal misalignment between them, and in combination with the cushioning effect of air, excellent safety is ensured in the storage and transportation of medical equipment, semiconductor products, and other precision equipment. Furthermore, the air cushioning material according to the present invention has a foldable side edge or a section edge between the side edges forming the outer frame of the cushioning material, corresponding to the dimensions of the packaged body and the packaging container. Each air chamber separated by them is connected by an air flow passage or a flow path, and is inflated by injecting air into the air chamber. Since the contact area can be pressed against the inner wall of the packaging container to function as a cushioning material, it is possible to obtain a large contact area with each other, so that concentration of stress is avoided and a stable cushioning function is ensured. On the other hand, since each air chamber and the air flow passage are connected by a check valve, the soundness of other air chambers is maintained even if a leak occurs in any one of the air chambers. In addition, the air cushioning material according to the present invention can be freely heat-sealed by using the same material, specifically, a film made of PE / PE cloth / PE or PP / PP cloth / PP as two sheets. Therefore, it is possible to process as described above, and because it is the same material, maintenance such as repair is easy, and it can be recycled and used effectively after use, In addition, the air cushioning material according to the present invention has an extremely simple and compact structure of the main body itself, and has reduced the amount of materials used to the limit. Since the distribution cost for storage and transportation during use is reduced and it contributes significantly to the energy saving effect, it can be expected to be used widely as an air injection type cushioning material.

It is a perspective view which shows the state before inject | pouring air and forming a buffer material of the synthetic resin film of front and back 2 sheets which consists of PE / PE cloth / PE which forms the air buffer material by one Example which concerns on this invention. . It is a partially expanded perspective view for demonstrating the structure of the air flow path periphery in this air buffer material. It is a perspective view which shows the structure of the non-return valve used for the Example. It is a partially expanded perspective view which shows the structure of the non-return valve attached to a right and left air chamber inlet via the non-return valve as an air inlet, an air flow path, and this air flow path. In the same Example, it is a perspective view which shows typically the external appearance of the state which was accommodated with the to-be-packaged body in the cardboard box which is a packaging container, and inject | poured air and formed the air cushioning material. In the air buffer material of the other Example which concerns on this invention, it is a perspective view which shows typically the state which inject | poured air and formed the buffer material. FIG. 7 is a perspective view schematically showing a laminated state of a synthetic resin film forming an air chamber in an air cushioning material according to still another embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1a Air cushioning material 2, 2a Side edge part 3, 3a Edge part 4, 4a Section edge part 4-1, 4a-1 Flow path 5, 5a Check valve 5-1, 5a-1 Supply / exhaust part 5a -2 printing part 5a-3 seal part 6, 6a air inlet 7, 7a air flow passage 7-1 end part 8, 8a air chamber 8-1, 8a-1 air chamber 9 packing container (corrugated cardboard box)
9-1 Opening part 10, 10a, 10b Synthetic resin film 11, 11a Welding part 12-1, 12-2 Side wall part 13, 13a Valve film 13-1 Heat resistant printing part

Claims (10)

An outer frame of a synthetic resin film that is a combination of two sheets in an air cushioning material that is interposed between an object to be packed and an inner wall of the packing container and protects the object from external force such as an impact Side edges that form the ends of the package are thermally welded, cross the intermediate part between the side edges, and are divided into a plurality of edges corresponding to the dimensions of the packaged body, and the edges The intermediate portion is vertically cut so as to intersect the edge portion, and the edge portions divided into a plurality according to the size and shape of the packaged body are thermally welded to each of the side edge portion and the edge portion. And an air cushioning material having a plurality of air chambers of different dimensions divided by the partition edge, and after the air cushioning material is installed in a predetermined packing container, the packaged body is inserted, and then the air cushioning The air chamber is inflated by injecting air from the air inlet provided on the side edge of the material. The object to be packaged, the air cushioning material, characterized in that accommodated as allowed to press the outer to the inner wall of the packaging container. 2. The air cushioning material according to claim 1, wherein a protective sheet made of the same kind of synthetic resin film or non-woven fabric is formed further inside the inner synthetic resin film in contact with the packaged body. . In the air cushioning material, a side wall portion for fixing the position of the packaged body is provided at a predetermined position on the left and right side surfaces in the longitudinal direction of the air chamber by a synthetic resin film or a nonwoven fabric of the same type as the air chamber. The air cushioning material according to claim 1 or 2, characterized by the above-mentioned. 4. The air cushioning material according to claim 1, wherein the two synthetic resin films that form the air chamber are rectangular synthetic resin films made of the same material. 5. Air cushioning material. In the air cushioning material, each air chamber to be formed communicates with each other via an air flow passage or a flow path, and the air circulation furnace and each air chamber are connected by a check valve. Item 5. The air cushioning material according to any one of Items 1 to 4. 6. The air cushioning material according to any one of claims 1 to 5, wherein a check valve is provided at an air inlet provided at a side edge of the air cushioning material. 7. The air cushioning material according to claim 1, wherein a separate air injection valve is attached to an air inlet provided in a side edge portion, and the air inlet is thermally welded after the air is injected. The air cushioning material according to item. 8. The air cushioning material according to claim 1, wherein the synthetic resin film forming the air chamber is a PE / PE cloth / PE or PP / PP cloth / PP film. Air cushioning material. 9. The air cushioning material according to claim 1, wherein the material of the nonwoven fabric forming the protective sheet and the side wall portion is selected from synthetic resin fibers such as polyamide fibers, polyester fibers, and polypropylene fibers. The air cushioning material according to claim 1. The air cushioning material according to any one of claims 1 to 9, wherein an antistatic agent is mixed into the synthetic resin film constituting the material in the air cushioning material.

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