JP3112371U - Buffer packaging bag and check valve - Google Patents

Abstract

A buffer packaging bag capable of effectively increasing the production rate and the product rate is provided.
[Solution]
A plurality of gas chambers 10 are connected to each other, and each gas chamber 10 is divided by a heat seal portion 31. The buffer packaging bag 1 includes a gas supply port 2 on one side, and the gas supply port 2 supplies gas. The gas supply path 14 communicates with each gas chamber 10, and the buffer packaging bag 1 is composed of two sheets of an upper sheet 21 and a lower sheet 22. A check valve composed of a seat 25 and a check valve lower sheet 26 is sandwiched between the check valve and the check valve upper sheet 25. A heat-resistant part 33 is installed between the check valve lower sheet 26 and the heat-resistant part 33 is located in the gas supply path 14 and is installed in a manner extending horizontally across the buffer packaging bag 1.
[Selection] Figure 1

Description

  The present invention relates to a shock-absorbing packaging bag, and is composed of a plurality of gas chambers. Each gas chamber is divided by a heat seal portion, each of which has a check valve, and gas leaks from the gas chamber after gas filling. In addition, the present invention relates to a check valve that includes a check valve upper sheet, a check valve lower sheet, and a heat-resistant portion sandwiched therebetween.

The traditional method of cushioning and packaging is to wrap multiple small gas chambers on a plastic sheet, wrap the packaged items with the plastic sheet, buffer the small gas chamber, and package There are things that prevent damage to things. However, there is a limit to buffering by a small gas chamber and it is barely effective against small impacts, but it is impossible to buffer large vibrations and impacts, often resulting in damage to the package.

In the buffer packaging bag of Patent Document 1, an inner wall and an outer wall folded in the opposite direction are provided, a gas sealed chamber is formed between the inner wall and the outer wall, and the gas sealed chamber is filled with gas. At this time, the package can be tightly wrapped by the inner wall and the buffer packaging bag can be bonded, and the gas in the gas-sealed chamber buffers the package. In addition, the buffer packaging material of Patent Document 2 includes a check valve for injecting and exhausting gas and a square gas-sealed bag made of a plastic sheet, and the packaging material body is folded in half and overlapped. Each of the inner surfaces of the two gas filling accommodating portions is provided with at least one linear joining portion, and when the gas filling is performed by the joining portion, the gas filling accommodating portion is provided. The expansion state is limited.

In the above two utility models, the package is protected by the gas filled in the gas sealed chamber or the gas filling container. However, when these gas-sealed chambers or gas-filled housing parts are ruptured in the transportation process, gas leaks and the buffer protection function is immediately lost. In addition, the structure of the above-mentioned two utility model valves is complicated, and it takes time and labor during manufacturing, resulting in a significant increase in cost.
Taiwan Utility Model No. 363600 Taiwan Utility Model No. 128326

The main object of the present invention is a structure in which a plurality of gas chambers are connected, each gas chamber is divided by a heat seal portion, and the buffer packaging bag is provided with a gas supply port on one side to supply gas. The mouth is connected to a gas supply path, the gas supply path communicates with each gas chamber, and the buffer packaging bag is composed of two sheets, an upper sheet and a lower sheet, between which the reverse of the check valve upper sheet A check valve composed of a check valve lower sheet is sandwiched between the check valve upper sheet and the check valve lower sheet. A heat-resistant part is installed in between, the heat-resistant part is located in the gas supply path part, and is installed in a manner that lies horizontally across the entire buffer packaging bag, and the check valve upper sheet and the check valve lower sheet are heated. Provided a cushioning bag that prevents heat-bonding together in the manufacturing process of the seal part In the Rukoto.
The next object of the present invention is composed of an upper check sheet, a lower check valve lower sheet, and a heat resistant part sandwiched between the upper sheet and the lower sheet. It has a predetermined length, and the length is determined according to the plurality of gas chambers of the buffer packaging bag. When the gas filling is completed, the gas in each gas chamber of the buffer packaging bag is An object of the present invention is to provide a check valve that seals gas by pressing the valve lower sheet to one side of the upper sheet and tightly bonding the check valve upper sheet and the check valve lower sheet to the upper sheet.

In order to solve the above-mentioned problems, the invention of claim 1 is a buffer packaging bag configured by connecting a plurality of gas chambers, wherein each gas chamber is divided by a heat seal portion, The bag has a gas supply port on one side, the gas supply port is connected to the gas supply channel, the gas supply channel communicates with each gas chamber, and the buffer packaging bag is a two-layer sheet of an upper sheet and a lower sheet A check valve composed of a check valve upper sheet and a check valve lower sheet is sandwiched between the check valve, and the check valve is installed in a manner that lies horizontally across the entire buffer packaging bag. In addition, a heat-resistant part is installed between the check valve upper sheet and the check valve lower sheet, the heat-resistant part is located in the gas supply path part, and is installed in a manner that lies horizontally across the entire buffer packaging bag, The check valve upper seat and the check valve lower seat are added together in the heat seal manufacturing process. It is prevented from being adhered a buffer packing bag according to claim.

  The invention of claim 2 is that a network junction is installed at a place where a check valve composed of a check valve upper sheet and a check valve lower sheet is installed, The buffer packaging bag according to claim 1, wherein sealing is performed.

  The invention of claim 3 is the shock-absorbing packaging bag according to claim 2, wherein the shape of the mesh joint is circular or other shape.

  The invention according to claim 4 is the shock-absorbing packaging bag according to claim 2, wherein the mesh-like joining point is obtained by heating and bonding three layers of an upper sheet, a check valve upper sheet and a check valve lower sheet. is there.

  The invention according to claim 5 is the buffer packaging bag according to claim 1, wherein the heat seal portions are installed at non-equal intervals.

  The invention according to claim 6 is the buffer packaging bag according to claim 1, wherein the gas chamber has a columnar shape, a rhombus shape, a circular shape, a square shape, a polygonal shape, or other similar shapes.

  The invention according to claim 7 is the buffer packaging bag according to claim 1, wherein each gas chamber is provided with a fold, and the gas chamber is bent.

  The invention of claim 8 is composed of a check valve upper sheet, a check valve lower sheet, and a heat-resistant part sandwiched between the upper sheet and the lower sheet, and the heat-resistant part is predetermined. The length is determined according to the plurality of gas chambers of the buffer packaging bag, and when the gas filling is completed, the gas in each gas chamber of the buffer packaging bag is the upper check valve and lower check valve. A check valve for a buffer packaging bag characterized in that the sheet is pressed to one side of the upper sheet and the check valve upper sheet and the check valve lower sheet are tightly bonded to the upper sheet to seal the gas. .

  The invention of claim 9 is that a network junction is installed at a place where a check valve composed of a check valve upper sheet and a check valve lower sheet is installed, 9. The check valve for a buffer packaging bag according to claim 8, wherein the check valve is sealed.

  The invention of claim 10 is the check valve for the shock-absorbing packaging bag according to claim 9, wherein the shape of the mesh joint is circular or other shape.

By implementing this embodiment, even if several gas chambers of the buffer packaging bag are ruptured, the gas chambers that are not ruptured are kept sealed by the sealing action of the check valve. Buffer protection can be performed on the device. The buffer packaging bag can provide buffer protection to the package after filling with gas by a plurality of independent gas chambers. The installation of mesh junctions that function as check valves eliminates the need to form gas inlets and outlets in all of the gas chambers, greatly increasing the production speed and increasing the product rate. I was able to increase it.

As shown in FIG. 1, the buffer packaging bag 1 according to the present embodiment is configured by connecting a plurality of gas chambers 10, and each gas chamber 10 is divided by a heat seal portion 31. The gas chambers 10 are arranged at non-equal intervals, and the size of each gas chamber 10 is thereby different.

The buffer packaging bag 1 includes a gas supply port 2 on one side, and the gas supply port 2 is connected to a gas supply path 14, and the gas passage formed thereby communicates with each gas chamber 10. Thereby, after gas (air or inert gas) enters from the gas supply port 2 of the bag body, each gas chamber 10 is filled with gas from the gas supply path 14. The gas chamber 10 can be columnar, diamond-shaped, circular, square, polygonal or other similar shapes.

As shown in FIGS. 2, 3, and 4, the cushion packaging bag 1 is composed of a two-layer plastic sheet material of an upper sheet 21 and a lower sheet 22, and is made of, for example, a PE sheet. A check valve composed of a check valve upper seat 25 and a check valve lower seat 26 is sandwiched between the upper seat 21 and the lower seat 22, and the upper seat 21 and the lower seat 22 have an appropriate length. Between the check valve upper sheet 25 and the check valve lower sheet 26, and the heat resistant portion 33 is interposed between the check valve upper sheet 25 and the check valve lower sheet 26. The heat-resistant part 33 is located just in the gas supply path 14 and is installed in a manner that extends horizontally across the entire buffer packaging bag 1. The purpose of installing the heat-resistant part 33 is to prevent the check valve upper sheet 25 and the check valve lower sheet 26 from being heated and bonded together in the manufacturing process of the heat seal part. The gas inlet 45 is reliably filled with gas without being heated and bonded. The thicknesses of the check valve upper sheet 25 and the check valve lower sheet 26 are 30 μm to 35 μm, respectively, and the thickness of the check valve after assembling the whole is 60 μm to 70 μm.

As shown in FIG. 1, a network junction 34 is installed at a place where a check valve composed of a check valve upper sheet 25 and a check valve lower sheet 26 is installed, and the shape thereof is circular. Or other shapes. The net-like junction 34 is obtained by heat-bonding three layers of the upper sheet 21, the check valve upper sheet 25, and the check valve lower sheet 26, and the advantages thereof will be described later.

Around these sheets, a heat seal portion 35 is formed by heat bonding with a copper mold, and the buffer packaging bag 1 is sealed, so that the gas in the gas chamber 10 does not leak to the outside. In addition, a plurality of gas chambers 10 are formed between the adjacent gas chambers 10 by the heat seal portion 31. These gas chambers 10 can be changed in size in accordance with an object to be packaged. A fold 40 is provided at an appropriate position of each gas chamber 10, which is used for folding when the gas chamber 10 is filled with gas, and the buffer packaging bag 1 can be formed into a bag shape.

As shown in FIGS. 6 and 7, when the gas is filled from the gas supply port 2 of the buffer packaging bag 1, the gas enters the gas chambers 10 from the gas supply path 14. When the gas injection is completed, the high-pressure gas inside each gas chamber 10 of the buffer packaging bag 1 presses the check valve upper sheet 25 and the check valve lower sheet 26 to one side of the upper sheet 21, and the check valve upper sheet 25 and the check valve lower sheet 26 are tightly bonded to the upper sheet 21 to seal the gas and prevent the gas from leaking from the inside of the gas chamber 10 to the outside.

  As shown in FIG. 5, when gas enters each gas chamber 10, the plurality of mesh junctions 34 form gas passages, and the gas enters the check valve after passing through the mesh junction 34 portion. Filled. In fact, these mesh joints 34 have an effect as a check valve and enhance the sealing effect of each gas chamber 10.

  As shown in FIG. 8, when the gas filling of the buffer packaging bag 1 is completed, each gas chamber 10 is inflated by the gas to be filled, an internal space is formed by each gas chamber 10, and an object to be packaged is the gas chamber 10. It can be protected to prevent damage caused by vibration or impact during transportation. Furthermore, since the gas supply path 14 of each gas chamber 10 is not in an expanded state but is in the form of a sheet, an object to be packaged can be accommodated in the space inside the buffer packaging bag 1 from the opening 50 and opened just as a sealing lid. The part 50 can be shielded.

  Actually, the gas supply path 14 does not necessarily have to be installed at the neck of the buffer packaging bag 1, but can be installed at the upper end of the buffer packaging bag 1 to have an envelope shape. As shown in FIG. 9, the position of the heat seal portion 31 can be changed to change the gas chamber 10 from a columnar shape to a rhombus, and the shape of the gas chamber 10 is not limited to this, but is circular, square, polygonal, or other The shape can be similar.

  Even if several gas chambers 10 of the buffer packaging bag 1 are ruptured by the implementation of the present embodiment, the gas chambers 10 that are not ruptured are kept sealed by the sealing action of the check valve. Buffer protection can be applied to the packaged item. The buffer wrapping bag 1 can perform buffer protection on the article to be packaged after gas filling with a plurality of independent gas chambers. By installing the mesh junction 34 having a function as a check valve, it is not necessary to form a gas inlet / outlet passage in all the gas chambers 10 and not only the production rate can be greatly increased, but also the product rate. It is an excellent structure that has never been achieved.

  The above description shows preferred embodiments, and all the partial changes or modifications easily made by those skilled in the art based on the technical spirit of the present invention are included in the right of the present invention.

It is a top view which shows the state at the time of the gas unfilling of the buffer packaging bag by one Embodiment of this invention. It is sectional drawing which shows the buffer packaging bag of FIG. It is a schematic diagram which shows the non-return valve of the buffer packaging bag by one Embodiment of this invention. FIG. 4 is a cross-sectional view taken along line AA in FIG. 3. It is a top view which shows the state at the time of the gas filling of the buffer packaging bag by one Embodiment of this invention. It is sectional drawing which shows the state of the one gas chamber at the time of gas filling. It is sectional drawing which shows the state of the one gas chamber at the time of gas filling completion. It is a perspective view which shows the state at the time of completion of gas filling of the buffer packaging bag by one Embodiment of this invention. It is a top view which shows the state at the time of the gas unfilling of the buffer packaging bag by 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Buffer packaging bag 10 Gas chamber 14 Gas supply path 2 Gas supply port 21 Upper sheet 22 Lower sheet 25 Check valve upper sheet 26 Check valve lower sheet 31 Heat seal part 33 Heat-resistant part 34 Reticulated joint 35 Joint 40 45 Gas inlet 50 Opening

Claims (10)

A buffer packaging bag constructed by connecting a plurality of gas chambers,
Each gas chamber is divided by a heat seal portion, the buffer packaging bag has a gas supply port on one side, the gas supply port is connected to a gas supply channel, and the gas supply channel is connected to each gas chamber. Communicated,
The buffer packaging bag is composed of two layers of an upper sheet and a lower sheet, and a check valve composed of a check valve upper sheet and a check valve lower sheet is sandwiched therebetween, and the check valve The valve is installed in such a manner as to be laid across the entire cushion packaging bag, a heat-resistant part is installed between the check valve upper sheet and the check valve lower sheet, and the heat-resistant part is located in the gas supply path part. It is located and installed in a way that lies horizontally across the entire buffer packaging bag, preventing the upper check valve seat and the lower check valve seat from being heated and bonded together in the manufacturing process of the heat seal part. A buffer packaging bag characterized by that.   A network junction is installed at the place where the check valve composed of the check valve upper seat and the check valve lower seat is installed, and gas entry into each gas chamber and sealing are performed. The buffer packaging bag according to claim 1.   The shock-absorbing packaging bag according to claim 2, wherein the shape of the mesh-like joining point is circular or other shape.   The shock-absorbing packaging bag according to claim 2, wherein the mesh-like joining point is obtained by heat-bonding three layers of an upper sheet, a check valve upper sheet, and a check valve lower sheet.   The buffer packaging bag according to claim 1, wherein the heat seal portions are installed at non-equal intervals.   The buffer packaging bag according to claim 1, wherein the gas chamber has a columnar shape, a rhombus shape, a circular shape, a square shape, a polygonal shape, or other similar shapes.   The buffer packaging bag according to claim 1, wherein each gas chamber is provided with a fold, and the gas chamber is bent. It is sandwiched between an upper seat and a lower seat, and is composed of a check valve upper seat, a check valve lower seat, and a heat-resistant portion sandwiched between them, and the heat-resistant portion has a predetermined length. The length is determined according to the plurality of gas chambers of the buffer packaging bag,
When gas filling is complete, the gas in each gas chamber of the buffer packaging bag presses the check valve upper sheet and check valve lower sheet to one side of the upper sheet, and the check valve upper sheet and check valve lower sheet move upward. A check valve for a buffer packaging bag, wherein the gas is sealed by tightly bonding to a sheet.   At the place where the check valve composed of the check valve upper sheet and the check valve lower sheet is installed, a mesh junction is installed, and gas entry and sealing of each gas chamber are performed. The check valve for a buffer packaging bag according to claim 8. The check valve for a shock-absorbing packaging bag according to claim 9, wherein the shape of the mesh junction is circular or other shape.

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