JP2015117053A - Air cell cushioning material for bottle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cell cushioning material for a bottle capable of efficiently absorbing an impact on the bottom part of the bottle.SOLUTION: A cushioning material body 1 comprises a plurality of air cells 5 which are formed by heat-sealing superposed films along hot fusion lines. Air is injected from an air injection port 7 provided at an end part of the cushioning material body 1 into the air cells 5, which then expand, and as a result, the material body 1 becomes a cushioning material. The cushioning material body 1 comprises: a cylindrical cushioning part 20 surrounding an outer peripheral part of a bottle; and a bottom cushioning part 21 surrounding the bottom part of the bottle to absorb an impact. The cylindrical cushioning part 20 includes many long air cells 5 which are arranged side by side in the height direction of the bottle. The bottom cushioning part 21 is formed in a chevron shape by folding the lower parts of the air cells 5 of the cylindrical cushioning part 20 inward.

Description

  The present invention relates to an air cell cushioning material for bottles that protects bottles such as wine bottles and bottles from impacts, and more particularly to an air cell cushioning material for bottles that can satisfactorily cushion the impact on the bottom of the bottles. .

  As a packaging material having a cushioning function by air, an air-injection type air cell cushioning material is known in Patent Document 1 below. This air cell cushioning material is composed of a pair of main body films on the front and back, and the edges and the like are heat-sealed at the heat-sealing line and the heat-sealing boundary line. The air cell is formed by injecting air into the air cell through the air injection path and check valve provided at the edge of the main body, and filling the air cell with air. The

  Further, Patent Document 2 below proposes a packaging material that uses this type of air cell cushioning material to wrap bottles such as wine bottles with a cushioning function.

  In this air cell buffer packaging material for bottles, basically, like the above, a large number of air cells are arranged in a straight line, and an air injection path is substantially perpendicular to the air cell at the end. The whole is formed in a sheet shape. When packaging bottles such as wine bottles, the long air cells of the buffer packaging material are vertically and vertically oriented and wrapped so that a sheet of cushioning material is wrapped around the bottles, and at the bottom of the bottles, The cushioning material on the side is extended downward with a predetermined width to form the bottom of the cushioning material, the bottom of the cushioning material is bent at a right angle, and its periphery is fused or bonded to the lower part of the cushioning material on the side, to form a cylindrical cushioning Use packaging materials. In use, the bottles are inserted into a cylindrical cushioning packaging material.

JP 2011-111191 A JP 2001-213479 A

  However, the above-mentioned conventional air cell buffer packaging material for bottles, although the outer peripheral part of the bottles is surrounded by a large number of air cells arranged in parallel vertically, is effectively protected from the impact of the side part, There was a problem that the buffer effect at the bottom of the bottles could not be expected so much.

  That is, at the bottom of the cushioning material of the packaging material, at least the fusion edges of the length corresponding to the three sides are heat-sealed, and the air cell in the portion holding the bottom corner of the bottle is thin or film-fused Only part.

  For this reason, even if the thickness (volume) of the air cell of the buffer material is increased, the thickness has a limit for use as a packaging material. For example, an air cell buffer packaging material containing a wine bottle or a bottle of wine When the bottle is dropped with its bottom part down, the bottle containing the contents of wine or liquor is very heavy and the impact load on the bottom part of the bottle is very large. For this reason, when bottles are dropped, there is a problem that the probability of breakage of the wine bottle or the first bottle is very high.

  This invention solves the above-mentioned subject, and it aims at providing the air cell shock absorbing material for bottles which can buffer the impact to the bottom part of bottles favorably.

The air cell cushioning material for bottles of the present invention that achieves the above object is configured such that the cushioning material body is formed by heat-sealing the stacked films along the heat-sealing line to form a plurality of air cells. In the air cell cushioning material for bottles for injecting air into the air cell from the air inlet provided in the section, expanding the air cell, and buffering and packaging the bottles,
The cushioning material body includes a cylindrical cushioning portion that surrounds the outer periphery of the bottles, and a bottom cushioning portion that surrounds and cushions the bottom of the bottles,
The cylindrical buffer portion is provided with a plurality of long air cells arranged in parallel in the height direction of the bottles, and the bottom buffer portion has a lower portion of the air cell of the cylindrical buffer portion and a mountain shape on the inside. It is characterized by being formed by bending it into two.

  According to the air cell cushioning material for bottles of the present invention, the bottom cushioning portion is formed by bending the lower portion of the air cell of the cylindrical cushioning portion inwardly into a mountain shape, so that no heat-sealing line appears on the bottom, and the entire bottom portion Becomes an air cell, and each air cell in the bottom buffer part bent inwardly has a very large elastic support force, and a bottle such as a wine bottle is inserted inside the cylindrical buffer part and packaged. Even if a large impact is applied to the bottom of the bottle, the bottom shock absorber will reliably absorb the impact at the time of dropping, and damage the bottle. Can be prevented.

  Here, it is preferable that the cushioning material body is provided with an upper cushioning portion projecting on the upper side of the cylindrical cushioning portion surrounding the outer periphery of the bottles and having an arc-shaped cross section and opening on one side. . According to this, since the upper part of the cylindrical buffer part of the buffer material body is open, it is possible to use the buffer material by inserting bottles of various heights into the cylinder buffer part. In the state where the bottles are inserted from the top, the upper buffer part of the arc-shaped cross section protruding from the upper part can be folded so as to cover the upper part of the bottles from the top, and can be used with the adhesive tape for packaging, etc. It can be conveniently used as a buffer packaging material for bottles of various heights.

  Further, here, the cushioning material body is formed by folding a long sheet formed by juxtaposing a plurality of long air cells by heat-sealing the overlapped films along a heat-sealing line. It can be configured by heat-sealing both side edges of the long sheet in a state where it is folded so as to be overlapped, leaving the upper buffer part, and the lower part of the folding line is inserted inward. . According to this, at the time of manufacture, it can be manufactured in a work process including relatively few heat sealing processes.

  Further, at the end of the cushioning material body, an air injection path is provided at the end of the air cell in a direction perpendicular to the air cell, and a check valve is provided between the air injection path and each air cell. An air injection port can be provided at the end of the air injection path.

  Further, the check valve includes a valve film disposed inside the two main body films constituting the buffer material main body, and the valve film is connected between the main body film and the valve film by a valve fusion wire. Except for the non-fused portion, heat sealing can be used. The check valve forms a constricted valve path between the two main body films constituting the buffer material body between the end portion of the air cell and the air injection path by a valve fusion line. It can also be configured by heat sealing.

  According to the air cell cushioning material for bottles of the present invention, even when the bottom part is dropped from the top as it is, the shock at the time of dropping is reliably absorbed by the bottom part cushioning part bent inwardly. Can prevent bottle breakage

It is a front view which shows an example of the air cell buffer material for bottles of this invention. It is a right view of the air cell shock absorbing material for the bottles. It is a top view of the air cell buffer material for the bottles. It is a bottom view of the same air cell buffer material. It is a typical top view which shows the elongate sheet | seat of the unfolding state at the time of manufacture. It is sectional drawing of the air cell shock absorbing material of the bent state at the time of manufacture. It is a perspective view which shows the use condition of the air cell shock absorbing material for bottles.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 4 show an air cell cushioning material for bottles according to an embodiment of the present invention. The air cell cushioning material for bottles is roughly composed of a cushioning material body 1 that forms the body. The superposed first main body film 2 and second main body film 3 are heat-sealed along a heat-sealing line, and long rod-shaped air cells (bag portions) 5 are arranged in parallel inside.

  The cushioning material body 1 includes a cylindrical cylindrical cushioning portion 20 for storing bottles inserted from above, and a bottom cushioning portion that forms the bottom of the cylindrical cushioning portion 20 and is bent inwardly into a mountain shape. 21. Further, as shown in FIGS. 1 and 2, an upper buffer portion 22 having an arcuate cross section and opening on one side is provided on the upper portion of the cylindrical buffer portion 20 of the buffer material body 1 so as to protrude upward. The air cell 5 of the buffer material body 1 is continuously extended from the upper buffer portion 22 to the bottom buffer portion 21 as described later.

  The bottle air cell cushioning material is inserted into the cylindrical cushioning portion 20 from the upper opening of the cylindrical cushioning material body 1, and in the inserted state, the bottom of the bottle is the bottom cushioning portion 21. The bottle is placed so that the neck and the head of the bottles are packaged so as to protrude upward from the opening of the cylindrical buffer 20 and to be positioned inside the upper buffer 22. The upper buffer part 22 projecting in a circular arc shape (semi-cylindrical shape) in the cross section is bent so as to cover the head of the bottle with the bottle inserted into the cylindrical buffer part 20, and the packaging tape ( It is possible to wrap the head of bottles by wrapping an adhesive tape or the like.

  When manufacturing the cushioning material body 1, the first body film 2 and the second body film 3 are overlapped at the time of manufacture, and a pair of valve films 11 and 12 for a check valve are disposed in the vicinity of the inner end portion thereof. Then, the valve fusion wire 13 is heat-sealed along the heat-sealing line 8 and the heat-sealing boundary line 9 at the edge and the check valve 10 and the sheet is first formed into a sheet shape.

  As shown in the development view of FIG. 5, the first main body film 2 and the second main body film 3 constituting the cushioning material main body 1 are formed in a long rectangular shape, and they are overlapped to form a surrounding heat-sealing wire 8. The two films including a pair of valve films are heat-sealed along a heat-sealing boundary line 9 between the air cell 5 and the air cell 5. Thereby, a plurality of (for example, seven) rod-shaped air cells 5 are formed in the cylindrical buffer portion 20, the bottom buffer portion 21, and the upper buffer portion 22 so as to be arranged in parallel along the longitudinal direction. The entire cushioning material body 1 is formed as a long sheet 18 in a sheet shape.

  That is, at the time of manufacturing the cushioning material, first, the cushioning material body 1 is formed using the first body film 2, the second body film 3, and the pair of valve films 11 and 12 cut into a long rectangular shape. The long sheet 18 is formed in a developed shape shown in FIG. Next, as shown in FIG. 6, the bottom part of the unfolded cushioning material body 1 is bent, and the cylindrical heat-sealing part 26 and the bottom heat-sealing part 26a, which are both side edges, are heat-sealed and heat-fused. To wear. In use, by filling the air cells 5 of the cylindrical buffer portion 20, the bottom buffer portion 21 and the upper buffer portion 22 with air, the cylindrical buffer portion 20 expands into a cylindrical shape, and the bottom buffer portion 21 becomes the cylindrical buffer. It becomes a mountain shape at the bottom of the part 20, and the upper buffer part 22 has a shape protruding above the cylindrical buffer part 20.

  As described above, when manufacturing the air cell cushioning material for bottles, the first main body film 2 and the second main body film 3 are overlapped, and the outer edge heat-sealing wire 8 and the intermediate portion heat-sealing boundary line 9 are combined. The long air cells 5 are formed in parallel with the longitudinal direction, and as shown in FIG. 5, the air inlets are provided at the distal ends of the air cells 5 of the cushioning body 1. One air injection path 6 having 7 is formed and connected. The air inlet 7 is provided open at the end of the air injection path 6 and injects air. The air injection path 6 is formed in a direction transverse to the end of the cushioning body 1 and along a direction perpendicular to the air cell 5, and air is injected into each air cell 5 from the air injection path 6 through a check valve 10 described later. Is done.

  As shown in FIG. 5, a film check valve 10 is provided at the end of each air cell 5 of the cushioning body 1, and the inlet side of each check valve 10 communicates with the air injection path 6. As a result, when an air pump nozzle is inserted into the air inlet 7 and air is injected, air is injected into each air cell 5 from the air inlet 7 and the air injection path 6 through the check valve 10. ing.

  The check valve 10 provided at the end of each air cell 5 is formed by superimposing two valve films 11 and 12 in the first main body film 2 and the second main body film 3 and fusing the valves between the films. It is formed by heat sealing with a wire 13 and heat sealing. At this time, a non-fused portion 14 serving as a valve passage is formed by, for example, application of heat-resistant ink so as to cross the valve fusion wire 13, and the non-fused portion 14 reverses the air cell 5. A narrow valve passage serving as the stop valve 10 is formed between the valve films 11 and 12. The check valve 10 injects air into the air cell 5 from the air injection path 6 through the valve passage, and when the air cell 5 expands to a predetermined size, the valve films 11 and 12 in the valve passage are caused by the internal air pressure. Are in close contact with each other, the backflow of air is prevented, and the air cell 5 is filled with air.

  In addition, although the single-layer plastic film can be used for the first main body film 2, the second main body film 3, and the two valve films 11, 12, from the viewpoint of gas barrier properties and heat sealing properties, It is preferable to use a functional film having two or more layers.

  For example, when two layers of plastic film are used for the first main body film 2 and the second main body film 3, it is possible to use nylon having gas barrier properties for the outer layer and LLDPE for the inner layer. it can. Also, when using a three-layer plastic film, LLDPE is used for the outer layer and nylon or the like is used for the inner layer, so that the first main body film 2 and the second main body film 3 are thermally fused, It is also possible to apply heat fusion in a state where the heat-fused first main body film 2 and second main body film 3 are further folded.

  In the case of the buffer material body 1 for packaging bottles, a plastic film having a thickness of about 20 μm to about 300 μm is usually used for the first body film 2, the second body film 3, and the valve films 11 and 12. However, when the cushioning body 1 is used for cushioning large bottles, a thicker plastic sheet can also be used.

  The check valve 10 is formed by heat-sealing two valve films 11 and 12 on the inside of the first main body film 2 and the second main body film 3, but for one or three valves. A non-return valve having a structure in which the film is heat-sealed to the inside, or a non-return valve passage is heat-sealed between the first main body film 2 and the second main body film 3 without using a valve film. A check valve having a structure formed by the above may be provided at the end of the cushioning body 1.

  At the time of manufacture, the long sheet 18 of the cushioning material main body 1 formed in the shape of a long rectangular sheet as described above, next, as shown in FIGS. The folding line H is bent so that the air cell 5 is overlapped with the position of the folding line H slightly shifted from the center to the air injection path 6 side. Thereafter, the fold line H is bent in the opposite direction and placed inside the cylindrical buffer portion 20 to form the first fold portion 23 as shown in FIG.

  That is, as shown in FIG. 6, the long sheet 18 of the cushioning material body 1 is folded in two along the fold line H, and the fold line H at the end in that state is put inside and folded, whereby the first fold line H Is bent in the opposite direction, and the first bent portion 23 is formed there. This bending is bent inward so that the bottom of the cushioning material body 1 has a mountain shape, and the second folding part 24 and the third folding part 25 are formed on the bottom of the first folding part 23 of the cushioning material body 1 as shown in FIG. It will be formed on both sides.

  The folding of the long sheet 18 of the cushioning material main body 1 is performed by bending the middle part of the air cell 5 so that the both side edges are accurately overlapped, and in that state, the cylindrical heat-sealing part on both side edges. 26 is heat-sealed and heat-sealed. Due to the thermal fusion of both side edges, cylindrical thermal fusion parts 26 are formed as the final final thermal fusion lines on both side edges of the cylindrical cushion part 20 of the cushioning body 1. Both side edges serve as bottom heat-sealing portions 26a, and the edges of all the superimposed films are fused. The bottom portion of the cushioning body 1 is formed by folding the air cell 5 inward to form the bottom buffer portion 21, so that the heat-sealed wire does not appear outside, the folded air cell 5 appears as the bottom surface, and the entire bottom portion is The air cell 5 is covered in a folded state.

  When using an air cell cushioning material for bottles, the air cell 5 of the cushioning material body 1 folded into a sheet is filled with air and expanded. The air is injected by inserting a nozzle of an air injector such as an air pump into the air inlet 7, and injecting air into each air cell 5 through the air inlet 7, the air inlet 6, and the check valve 10. Fill.

  When each air cell 5 of the cushioning body 1 is expanded by the air injection, the force of the bottom air cell 5 bent inward to return to a straight state particularly with the expansion of the air cell 5 of the bottom buffer portion 21. And both side edges of the cylindrical buffer portion 20 are fused and constrained by the cylindrical heat fusion portion 26 and the bottom heat fusion portion 26a. For this reason, the surrounding air cell 5 expand | swells so that the cylindrical buffer part 20 may open the inner side, and the cylindrical buffer part 20 becomes a cylindrical type by injection | pouring of air.

  Thereby, as shown in FIG. 7, the air buffer material for bottles in a state filled with an appropriate air pressure has a cylindrical buffer portion 20 in a cylindrical shape, and the upper buffer portion 22 is formed in a semicircular arc shape, In addition, since both side edges of the bottom buffer portion 21 are constrained by the bottom heat-sealing portion 26a, the bottom air cell 5 is held in a state where it is bent inward, that is, in a state where it is bent into an appropriate chevron shape. The entire cushioning material body 1 has a substantially cylindrical container shape as shown in FIG. Moreover, since the edge part of all the laminated | stacked films is melt | fused, the heat sink part 26a for the bottom part of the both sides of the bottom part buffer part 21 hold | maintains the chevron shape of the bottom part buffer part 21 reliably. Even if a load is applied on the bottom buffer portion 21, it does not become flat.

  When packaging bottles such as wine bottles and bottles, when packaging with a cushioning function, the bottles are inserted into the cylindrical cushioning material body 1 from above as shown in FIG. As shown in FIG. 7, since the heads of the bottles protrude upward from the cylindrical buffer part 20 and are exposed and positioned inside the upper buffer part 22, when the bottles have different heights, that is, Even if the height is somewhat low or high, the bottles can be accommodated in the cushioning material body 1 without any trouble.

  Then, with the bottles inserted into the cushioning body 1, the upper part of the upper buffer part 22 is folded inward so as to cover the heads of the bottles, and the tip part of the upper buffer part 22 is bent into the cylindrical buffer part 20. Insert inside. Thereby, even if it is bottles from which height differs, it will be in the state where the whole bottle was covered with buffer material main part 1 by simple packaging operation, and various bottles can be simply packed with a buffer function. . In addition, when it is difficult to bend the upper buffer portion 22 inward, the upper buffer portion 22 can be easily bent inward by providing a plurality of point seal portions at an intermediate portion of the upper buffer portion 22.

  Further, when air is injected into the air cell 5, if the air pressure is appropriately adjusted, the cylindrical buffer portion 20 has appropriate elasticity in the radial direction. The radial width of the cylindrical buffer portion 20 is slightly widened, and the bottles can be inserted and accommodated in the cylindrical buffer portion 20 with no gap. Further, at this time, the bottom of the bottles reliably comes into contact with the bottom buffer 21 of the buffer body 1. Therefore, in this state, the cushioning material body 1 of the bottled air cell cushioning material can stand stably with the circular bottom cushioning part 21 as the bottom, so that the bottles can be placed in the container box for transportation. When transported in a box, the boxes can be stored side by side in a stable standing state.

  When an impact is applied during transportation or the like, the outer periphery of the bottle is absorbed by the buffering function of the air cell 5 around the cylindrical buffer 20, and the impact applied to the bottom of the bottle is the air in the bottom buffer 21. Absorbed by cell 5. Particularly, the impact applied to the bottom of the bottle is formed by bending the air cell 5 in a mountain shape by the bottom buffer portion 21, so that the mountain-shaped air cell 5 can be applied even in a vertical or oblique impact load. It is well absorbed by the elasticity of In addition, since the heat sealing line does not appear in the bottom buffer portion 21 and the entire bottom portion is covered with the air cell 5, even when heavy bottles are dropped from above, the bottom portion is the bottom buffer. Since the impact is satisfactorily absorbed by the air cell 5 of the portion 21, the bottles are prevented from being damaged, and the bottles can be well protected.

  Thus, according to the air cell cushioning material for bottles, since the bottom cushioning portion 21 is formed by bending the lower portion of the air cell 5 of the cylindrical cushioning portion 20 inwardly into a mountain shape, the heat-sealing line is formed at the bottom portion. The entire bottom portion becomes the air cell 5 and does not appear, and a very large elastic supporting force is generated in each air cell 5 of the bottom buffer portion 21 bent inwardly in a mountain shape. For this reason, in the state where bottles such as wine bottles are inserted inside the cylindrical buffer part 20 and packaged, the bottom part is dropped as it is from above, and a large impact is applied to the bottom part of the bottles. Moreover, the impact at the time of the fall is reliably absorbed by the bottom part buffer part 21, and damage to bottles can be prevented.

DESCRIPTION OF SYMBOLS 1 Buffer material main body 2 1st main body film 3 2nd main body film 5 Air cell 6 Air injection path 7 Air injection port 8 Thermal fusion line 9 Thermal fusion boundary line 10 Check valve 11 Valve film 12 Valve film 13 Valve Fused wire 14 Non-fused part 18 Long sheet 20 Cylindrical buffer part 21 Bottom buffer part 22 Upper buffer part 23 First bent part 24 Second bent part 25 Third bent part 26 Cylindrical heat-sealed part 26a For bottom part Thermal fusion part

Claims (6)

The buffer material body is formed by heat-sealing the stacked films along the heat-sealing line to form a plurality of air cells, and air is injected into the air cells from the air inlet provided at the end. In the air cell cushioning material for bottles for expanding the air cell and buffering and packaging the bottles,
The cushioning material body includes a cylindrical cushioning portion that surrounds the outer periphery of the bottles, and a bottom cushioning portion that surrounds and cushions the bottom of the bottles,
The cylindrical buffer portion is provided with a plurality of long air cells arranged in parallel in the height direction of the bottles, and the bottom buffer portion has a lower portion of the air cell of the cylindrical buffer portion and a mountain shape on the inside. An air cell cushioning material for bottles, wherein the air cell cushioning material is formed by bending it into two.   The cushioning material body is characterized in that an upper cushioning portion having an arc-shaped cross section and opening on one side protrudes from the upper portion of the cylindrical cushioning portion surrounding the outer periphery of the bottle. The air cell cushioning material for bottles according to claim 1.   The cushioning material body includes a long sheet formed by juxtaposing a plurality of long air cells by heat-sealing the stacked films along a heat-sealing line, with a folding line at an intermediate portion thereof. It is configured to be heat-sealed on both side edges of the long sheet in a state where the buffer sheet is folded so as to be overlapped, and the lower part of the fold line is folded inward. Item 3. An air cell cushioning material for bottles according to Item 2.   At the end of the cushioning body, an air injection path is connected to the end of the air cell and provided in a direction perpendicular to the air cell, and a check valve is provided between the air injection path and each air cell. 4. The air cell cushioning material for bottles according to claim 3, wherein an air inlet is provided at an end of the air injection path.   In the check valve, a valve film is disposed inside two main body films constituting the cushioning material main body, and a valve fusion line is provided between the main body film and the valve film so that the valve path is not The air cell cushioning material for bottles according to claim 4, wherein the air cell cushioning material is configured to be heat-sealed except for the fused portion.   The check valve forms a constricted valve path between the two main body films constituting the buffer material body between the end of the air cell and the air injection path by a valve fusion line. The air cell cushioning material for bottles according to claim 4, wherein the air cell cushioning material is bottle-sealed.

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