JP2019034776A - Package cushioning - Google Patents

Abstract

To provide a package cushioning which can put stably and observe a packaged object of inside from the outside directly, and can secure permeability and apply to packaging such as vegetables and fruits.SOLUTION: An upper covering portion 41 and a lower covering portion 31 where a plurality of longitudinal cells 32, 42 that expand by entering fluid such as air are arrayed in the right and left direction are comprised. The cells 32, 42 are continuous in both covering portions 41, 31. The forth end side of the lower covering portion 31 is fixed to the lateral end portion of the upper covering portion 41 and an annular body 23 is constructed. The annular body comprises openings 24 in the right and left side, and a packaged object 51 can be inserted. A plurality of bending portions 21 are comprised in the back and forth direction in the upper covering portion 41, and bending portions are not comprised from the forth end side to the lateral end side in the lower covering portion 31. The lower covering portion 31 constructs a plane plate-like bottom portion and the upper covering portion 41 covers over the packaged object 51 by introducing the fluid in the cells 32, 42 and expanding.SELECTED DRAWING: Figure 1

Description

The present invention relates to a buffer package having a cell.

As a package for fruits and vegetables, packaging using containers such as trays, plastic films, foam sheets and the like is the mainstream. However, such packaging has a problem that damage is generated due to external impact or its own weight, and the product value is easily lost, and the packaging form is limited, making it difficult to differentiate from other products.

In addition, in the case of substantially spherical fruits such as apples, melons, mangoes, etc., if only the fruits are displayed and sold at a store as they are, they are easy to roll, and if they are stacked, pain occurs. On the other hand, when fruits are displayed and sold in plastic boxes, they are stable, but they have a low buffering property to prevent the occurrence of pain, making it more difficult to stack while suppressing the occurrence of pain.

On the other hand, a packaging body that exhibits buffering properties by forming a plurality of cells with an airtight sheet such as a soft synthetic resin sheet and enclosing a fluid such as air in the cells has an excellent buffer function and volume reduction. Due to its ease, it is used to protect and store various items to be packaged. Specifically, as shown in Patent Documents 1 and 2, a buffer bag is known in which a sheet body including cells is formed in a bag shape and an article to be packaged is placed in the bag.

However, the conventional buffer bag has a symmetrical shape at the top and bottom and is connected to the left and right. Therefore, when a spherical object such as fruit is stored, it is deformed into a spherical shape along its outer shape, and there is a problem in stability. Will be left. And since it is bag shape, a to-be-packaged object cannot be directly seen from the outside, but it is substantially difficult to display in the packaged state. Furthermore, since it is a packaging form in which the circulation of the air inside and outside is hindered, when the packaged item is a fruit, it may result in blocking the spoilage gas generated from the fruit, which may promote a decrease in freshness.

Japanese Patent No. 4030333 International Publication No. 2003/072456 Pamphlet

An object of the present invention is to provide a shock-absorbing package that can be stably placed and can take a packing form having a shock-absorbing function along the shape of an object to be packaged.
Furthermore, an object of the present invention is to provide a shock-absorbing package that can directly observe an inner package from the outside, ensure air permeability, and can be applied to packaging of fruits and vegetables.

The present invention includes a covering portion in which a plurality of vertically long cells that expand by enclosing a fluid are arrayed in the left-right direction, and the buffer packaging body that covers a package by the covering portion includes the following means: By providing the above, the above-mentioned problems are solved.
In the shock-absorbing package of the present invention, the covering portion includes a lower covering portion that is disposed below the article to be packaged and an upper covering portion that is disposed on the object to be packaged. The cell is continuous in the upper covering portion and the lower covering portion, a front end side of the lower covering portion is fixed to a rear end side of the upper covering portion, the covering portion forms an annular body, and the covered portion The package can be placed inside. The annular body may be open on the left and right.
The cell includes a plurality of bent portions configured such that the upper covering portion is bent more than the lower covering portion. Specifically, the cell includes a plurality of the bent portions in the front-rear direction in the upper covering portion, and does not include the bent portions from the front end side to the rear end side in the lower covering portion. The number of the bent portions may be smaller than that of the bent portion of the upper covering portion.
In a state where the article to be packaged is arranged inside the annular body, a fluid is introduced into the cell and inflated so that the bottom covering portion has a flat bottom in a state where the article to be packaged is placed. In addition, the upper covering portion is configured to bend and cover the top of the package in a state where the front and rear portions are connected to the lower covering portion. In the present invention, the top, bottom, left and right only indicate a relative positional relationship, and should not be understood as specifying an absolute position.

More specifically, the covering part can be implemented as an array of expandable cells in which fluid is sealed and non-expanded cells in which fluid is not sealed.
The non-inflatable cell is disposed between the inflatable cell and the inflatable cell, and the bent portion provided in the upper covering portion of the inflatable cell has a width smaller than the width of the inflatable cell. It can be implemented as a point seal.

The cells are connected to each other by a common fluid passage, and the expandable cell includes a check valve that opens when a fluid is introduced from the fluid passage. For the flow in the outflow direction, the valve can be closed.

In the buffer package according to the present invention, the lower covering portion can be stably placed with the lower side, that is, the bottom. On the other hand, since the upper covering portion provided with the bent portion so as to be bent can be arranged along the shape of the packaged object, a packaging body having a buffer function capable of taking a packaging form according to the shape of the packaged object is provided. It was possible to provide.

In addition, it is possible to directly observe the inner package from the outside and ensure air permeability, and can be applied to packaging and display sales of fruits and vegetables.

The perspective view which shows the use condition of the buffer packaging body which concerns on embodiment of this invention. The expanded view of the buffer packaging body. Sectional drawing of the use condition of the buffer packaging body. Sectional drawing of the use condition of the buffer packaging body in the position which follows the IV-IV line of FIG. Sectional drawing of the use condition of the buffer packaging body which concerns on other embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The buffer package according to this embodiment includes a lower covering portion 31 and an upper covering portion 41.
The lower covering portion 31 and the upper covering portion 41 are formed continuously, and these are constituted by the double resin sheet structure 11.

(About the double resin sheet structure 11)
The double resin sheet structure 11 is provided with a buffering function by superposing two synthetic resin sheets as shown in Patent Documents 1 and 2 and joining them with a vertical seal 20 such as heat sealing. It is a structure.

Specifically, as shown in FIG. 2, a cell 17 is provided between the vertical seals 20 by forming a vertical seal 20 extending in the front-rear direction. In this embodiment, four cells 20 are arranged in the left-right direction by providing four vertical seals 20. The three left and right cells 17 are inflatable cells 18 in which a fluid such as air is sealed, and the cells 17 between the two inflatable cells 18 are non-inflatable cells 19.

The inflatable cell 18 is provided with a check valve 34 at the front end thereof, and the rear end thereof is closed by a terminal seal 44, so that the fluid introduced through the check valve 34 is enclosed and thereby expanded. The state is maintained.
The non-expanded cell 19 has a closed tip so that no fluid is introduced into the cell, or even if the tip is open, the rear end is not closed. A structure in which the fluid is not sealed in the non-expanded cell 19 due to the fluid being removed. Accordingly, the check valve 34 is not shown because it is essentially unnecessary, but it may be provided from the viewpoint of mass productivity.

Each inflatable cell 18 may introduce fluid separately, but in this embodiment, a common fluid passage 14 is formed at the front end thereof by forming a common fluid passage 14. The fluid can be introduced from the inlet 15 on one end side of each of the 14 and introduced into each inflatable cell 18 via the check valve 34. The other end of the common fluid passage 14 is closed as a closed end 16 so that fluid can be introduced efficiently.

The check valve 34 is a seat check valve, and between the two sheets constituting the valve passage, a valve seat that can move in the thickness direction is arranged to perform heat sealing for the check valve. Therefore, a configuration similar to that shown in Patent Document 1 or Patent Document 2 can be employed. The check valve 34 may be provided individually for each inflatable cell 18, or a belt-like valve seat is continuously arranged over the plurality of cells 17, and the heat for the check valve is provided in each inflatable cell 18. A check valve may be formed by applying a seal. In addition to the configuration of the check valve 34, the configuration of the common fluid passage 14 and the cell 17 itself can be the same as that shown in Patent Document 1 or Patent Document 2, About the whole structure including arrangement | positioning of the expansion cell 19, the bending part 21, the lower coating | coated part 31, and the upper coating | coated part 41, it is a structure newly proposed in this invention.

It is also possible to carry out this buffer packaging body by leaving a surplus portion (for example, a portion of only a sheet, not a cell) around the cell 17. In this embodiment, the surplus portion is formed on the entire circumference, and the front surplus portion 12 on the front end side of the common fluid passage 14 is formed with a locking portion 13 such as a small hole so that the whole is suspended and displayed. It is configured so that it can be sold.

(About cell 17)
The double resin sheet structure 11 of the buffer package includes a lower covering portion 31 and an upper covering portion 41. Both are formed continuously, and the cells 17 (the expandable cell 18 and the non-expandable cell 19) are also formed continuously. Hereinafter, the expandable cell 18 and the non-expandable cell 19 of the lower covering portion 31 are referred to as a lower expandable cell 32 and a lower non-expandable cell 33 as necessary. Further, the expandable cell 18 and the non-expandable cell 19 of the upper covering portion 41 are referred to as an upper expandable cell 42 and an upper non-expandable cell 43 as necessary.

The cell 17 includes a plurality of bent portions 21. The bent portion 21 is a joined portion obtained by partially processing a heat seal (point seal) with respect to the upper and lower sheets constituting the cell 17, and is a seal portion having a lateral width smaller than the lateral width of the cell 17. . Therefore, the fluid flowing in the cell 17 flows as it is, but since it is not expanded by the fluid, even if the expandable cell 18 expands, it can be bent at the bent portion 21. Since the non-expanding cell 19 does not expand, it is not necessary to form a point seal as in the case of the check valve 34 described above, but it may be formed for convenience of productivity.

(About the upper covering portion 41)
The upper covering portion 41 is provided with a plurality of bent portions 21 at appropriate intervals in the front-rear direction. Thereby, even if the upper coating | coated part 41 exists in the expanded state, it can be bent in several places. The rear end side of the upper covering portion 41 is fixed to the front end side of the lower covering portion 31 by the sheet joining portion 22. Thereby, the buffer package becomes the annular body 23. About the number of the bending parts 21, the plurality which can follow the shape of the to-be-packaged object 51 can be provided, Desirably 3 or more can be provided and implemented. However, it is appropriate to provide a larger number as the size of the object to be packaged 51 and the size of the entire buffer package increase.

(About the lower covering portion 31)
The lower covering portion 31 has a structure in which the bent portion 21 is not formed or the bent portion 21 is provided with a smaller number of bent portions than the bent portion of the upper covering portion, and is less bent than the upper covering portion 41. ing. In the example shown in the figure, the bent portion 21 is not formed in the lower covering portion 31, and is merely formed at the rear end of the lower covering portion 31 (that is, the boundary portion with the upper covering portion 41). Accordingly, the lower inflatable cell 32 is in a series of inflated states from the check valve 34 provided at the front end to the rear end. As a result of the lower inflatable cells 32 being provided in parallel, the lower covering portion 31 substantially maintains a flat plate state. Here, the flat state is provided with unevenness less than or equal to the thickness of the lower expandable cell 32, but there is no large change in vertical height as in the upper covering portion 41, and a plate-like state as a whole on the mounting surface. Is a form that can be placed in the front-rear direction.

In addition, although both the upper coating | coated part 41 and the lower coating | coated part 31 were provided in the position of the cell 17 in the sheet | seat joining part 22, you may provide at least any one in the position of the surplus part or the fluid channel | path 14. FIG.
In the expanded three-dimensional state, it can be said that the annular body 23 has an opening 24 at both left and right ends, and has a cylindrical shape extending in the left-right direction.

(how to use)
In use, the article to be packaged 51 is inserted from the opening 24 into the buffer package in which no fluid is introduced. Since the inflatable cell 18 in this state is not inflated and has a flexible sheet shape as a whole, the article 51 can be easily inserted into the annular body 23.

A fluid is introduced from the inlet 15 of the common fluid passage 14 in a state where the article 51 is disposed inside the annular body 23. As a result, the lower expandable cell 32 and the upper expandable cell 42 expand. The lower inflatable cell 32 is substantially flat as described above, but the upper covering portion 41 is bent from the plurality of bent portions 21 to form a three-dimensional shape along the shape of the package 51. Become. Further, as a result of the expansion of the lower expandable cell 32 and the upper expandable cell 42, the inner diameter of the annular body 23 is reduced, and the packaged object 51 can be firmly held with elasticity. Therefore, it can suppress that the to-be-packaged object 51 drops | omits from the opening 24 on either side.

In addition, as a result of the non-expanding cells 19 being arranged between the expandable cells 18, the non-expanding cells 19 may not directly contact the package 51, or if so, a small force is applied. Does not cover package 51. Therefore, even if the to-be-packaged object 51 is a fruit, the generation | occurrence | production of the pain can be suppressed. Furthermore, since the air permeability with respect to the packaged object 51 is maintained by the left and right openings 24, the occurrence of fruit pain can be suppressed also in this respect.
Therefore, the external force applied to the package 51 can be relaxed, while the occurrence of harmful effects that may occur in the conventional buffer package can be suppressed.

(Other embodiments)
The inflatable cells 18 and the non-inflatable cells 19 can be implemented with various changes in the number and width depending on the size and shape of the buffer package or the packaged object 51. For example, FIG. As shown, the number of cells 17 can be increased. In the example of FIG. 5, the lower inflatable cell 32 is arranged at the center in the left-right direction of the buffer package so that the lower inflatable cell 32 is arranged directly below the center of the package 51. Can provide a stable buffering property. On the other hand, in the example of FIG. 3, the lower non-inflatable cell 33 is located in the center, and the lower inflatable cells 32 are arranged on both sides thereof. By being sandwiched, a stable arrangement structure can be obtained, and buffering properties can be maintained by the lower inflatable cells 32 on both the left and right sides.
Further, as shown in FIG. 5, all the cells can be expanded cells 18 in the lower covering portion 31, while the expandable cells 18 and the non-expanding cells 19 can be mixed in the upper covering portion 41. . In this case, by closing the expandable cell 18 of the lower covering portion 31 at the boundary between the lower covering portion 31 and the upper covering portion 41, no fluid is supplied to the cells of the upper covering portion 41, so that the non-expanding cell 19 is obtained. . Further, although not shown, all the cells may be implemented as the expandable cells 18.
In addition, although the sheet | seat joining part 22 may be comprised by heat sealing similarly to the vertical seal | sticker 20 etc., employ | adopt detachable joining structures, such as uneven | corrugated fitting and a latching | locking part and a to-be-latched part. You can also. A gas such as air can be used as the fluid, or a liquid may be used.

11 Double Resin Sheet Structure 12 Front Surplus Part 13 Locking Part 14 Fluid Passage 15 Inlet 16 Closed End 17 Cell 18 Inflatable Cell 19 Non-inflatable Cell 20 Vertical Seal 21 Bent Part 22 Sheet Joint Part 23 Annular Body 24 Opening 31 Lower covering portion 32 Lower inflatable cell 33 Lower non-inflatable cell 34 Check valve 41 Upper covering portion 42 Upper inflatable cell 43 Upper non-inflatable cell 44 End seal 51 Package

Claims (3)

In the shock-absorbing packaging body that includes a covering portion in which a plurality of vertically long cells that expand in the front-rear direction that expand by enclosing a fluid are arranged in the left-right direction, and covers an object to be packaged by the covering portion,
The covering portion includes a lower covering portion disposed under the article to be packaged, and an upper covering portion disposed on the object to be packaged.
The cell is continuous in the upper covering portion and the lower covering portion,
By fixing the front end side of the lower covering part to the rear end side of the upper covering part, the covering part constitutes an annular body, and the packaged object can be arranged inside the annular body,
The cell includes a plurality of bent portions configured such that the upper covering portion bends more than the lower covering portion,
By introducing the fluid into the cell and inflating it in a state where the article to be packaged is disposed inside the annular body, the fluid is introduced into the cell and inflated, thereby The lower covering portion constitutes a flat bottom in the mounted state, and the upper covering portion is placed on the lower covering portion with its front and rear connected to the lower covering portion. A shock-absorbing package configured to cover a packaged object in a bent state. The left and right sides of the annular body are open,
The cell includes a plurality of the bent portions in the front-rear direction in the upper covering portion, and does not include the bent portions from the front end side to the rear end side in the lower covering portion, or the bending of the upper covering portion. Comprising a smaller number of the bent portions than the portion,
The covering portion is an inflatable cell in which the fluid is sealed and a non-inflatable cell in which the fluid is not sealed, arranged in the left-right direction,
The non-expanded cells are disposed between a plurality of the expandable cells;
The shock-absorbing package according to claim 1, wherein the bent portion provided in the upper covering portion of the inflatable cell is constituted by a point seal having a width smaller than a lateral width of the inflatable cell. . The cells are connected by a common fluid passage,
The shock-absorbing package according to claim 2, wherein the inflatable cell includes a check valve that opens when the flow of the fluid introduced from the fluid passage is a normal flow.

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