JP2023140394A - Packaging material, sheet-like valve body taking-out method, air injection method, and air filling type cushioning bag body - Google Patents

Abstract

To provide a packaging material, a packaging method and an air filling type cushioning bag body that never spoil the original appearance of a cardboard box in a packed state, eliminate the need for complicated packing work, and also can securely prevent a packing object from being damaged in spite of a careless movement of the packing object in conveyance.SOLUTION: A packaging material comprises a box and an air filling type cushioning bag body installed in the box. The air filling type cushioning bag body consists of: a sheet-like valve body which has an air injection port at one end and an air discharge port at the other end; and a cushioning bag body. The air filling type cushioning bag body is constituted in a state where the air discharge port side of the air the sheet-like valve body is inserted into the cushioning bag body and the air injection port side extends outward in a longitudinal direction of the cushioning bag body. The box is constituted of: a box body with an open part; and an inner lid and an outer lid which close an open part provided in the box body. The packaging material is configured so that the air injection port side of the sheet-like valve body is pulled out of the box through between an upper surface of the inner lid and a lower surface of the outer lid in a closed state and air is injected through the pulled-out air injection port.SELECTED DRAWING: Figure 1

Description

The present invention provides a packaging material for storing and packaging objects such as clothing, shoes, cosmetics, daily necessities, small home appliances, precision instruments, fragile items, and pharmaceuticals in a cardboard box, and a method for removing a sheet-like valve body. Regarding air injection methods and air-filled buffer bags, in particular, it is possible to obtain a desired packaging state without damaging the original packaging appearance of the box, such as a cardboard box, and without requiring complicated packaging work. The present invention relates to a device that is devised to reliably prevent damage caused by careless movement of objects to be packed during transportation.

When packing and transporting items such as clothing, shoes, cosmetics, daily necessities, small home appliances, precision equipment, and fragile items in a cardboard box, the items may be accidentally placed inside the cardboard box during transportation. There is a concern that it may move and be damaged. Therefore, various cushioning materials are placed in cardboard boxes to prevent the objects to be packed from being accidentally moved during transportation.

As a packaging material using such a shock absorber, there is one that uses an air bag in which a plurality of air chambers filled with air are connected.
However, the above-mentioned packaging material using an air bag requires a cumbersome packing operation in which the item to be packed is wrapped in the air bag and then the extra space created in the cardboard box is filled.

The present inventor has already developed a packaging structure described in Patent Document 1 below as a packaging material using a new cushioning body that facilitates the troublesome packaging work, and has applied for and patented the packaging structure.
This packaging structure uses an air-filled shock absorber that is deployed on one side and the top of a cardboard box as a packaging material, and air is supplied through an air injection opening formed in the cardboard box. The air injection part installed in the filling type buffer is taken out to the outside of the cardboard box to inject air, and it has already been commercialized and marketed, and is being developed by some packaging companies. .

Patent No. 6408298

However, in the case of the packaging structure of Patent Document 1, the opening for the air injection part is provided in the cardboard box, so although it is considered that the possibility of this happening is actually low, foreign objects can escape from the opening for the air injection part. At present, it has become clear that there are limits to its widespread use, as it is sometimes avoided due to the risk of dust, dust, etc. entering.
On the other hand, the most popular type of cardboard box is the A-type, which is closed with an inner lid and an outer lid, and is used for so-called tangerine boxes and moving houses. There has been a desire for a technology that allows a desired packaging state to be obtained with a simple packing operation into a box with a lid.

The present invention is based on the current state of the art, and has been achieved by finding a path etc. that allows air to be injected into the air-filled buffer inside the cardboard box packed using a conventional method without performing any processing on the cardboard box. The purpose of this is to eliminate the complication and complexity without damaging the original packaging appearance of the cardboard box, in other words, without creating any openings that can be seen from the outside in the cardboard box when the packaging is complete. Packing materials, sheet valve removal method, air injection method, and air filling type that eliminate the need for extensive packaging work and reliably prevent damage to the packaged items due to careless movement during transportation. The purpose is to provide a buffer bag.

In order to achieve the above object, a packaging material according to claim 1 of the present invention includes a box and an air-filled buffer bag installed in the box, and the air-filled buffer bag has one end It consists of a sheet-shaped valve body with an air inlet and an air discharge port at the other end, and a buffer bag main body, and the air discharge port side of the sheet-shaped valve body is inserted into the buffer bag main body, and the air inlet The box is configured such that its sides extend outward in the longitudinal direction of the buffer bag main body, and the box includes a box main body having an opening, an inner lid provided in the box main body that closes the opening, and an outer lid. and a lid, the air inlet side of the sheet-like valve body is passed between the upper surface of the closed inner lid and the lower surface of the outer lid, and is pulled out of the box. The present invention is characterized in that air is injected through the air injection port.
Further, in the packaging material according to claim 2, in the packaging material according to claim 1, the air inlet side of the sheet-like valve body is arranged so as to wrap around the end surface of the inner lid, and the upper surface of the inner lid and the outer surface of the inner lid. It is characterized by being guided between the lid and the lower surface of the lid.
Further, in the packaging material according to claim 3, in the packaging material according to claim 2, the air inlet side of the sheet-like valve body passes between the end surface of the inner lid and the bent part of the outer lid. It is characterized in that it is guided between the top surface of the lid and the bottom surface of the outer lid.
Further, in the packaging material according to claim 4, in the packaging material according to claim 1, the inner lid is formed with an opening covered by the outer lid, and the air inlet side of the sheet-like valve body is provided with: It is characterized in that it is led between the upper surface of the inner lid and the lower surface of the outer lid through an opening provided in the inner lid.
Further, in the packaging material according to claim 5, in the packaging material according to any one of claims 1 to 4, the sheet-like valve body is attached to the buffer bag at an angle of 45 degrees with respect to the longitudinal direction of the buffer bag main body. It is characterized by being configured to extend outward in the longitudinal direction of the main body.
Further, the packaging material according to claim 6 is the packaging material according to any one of claims 1 to 5, wherein the sheet-like valve body has a perforation for cutting off a tip portion on the side of the air inlet. It is characterized by being provided with.
Furthermore, the packaging material according to claim 7 is the packaging material according to any one of claims 1 to 6, wherein the air injection nozzle is guided to be inserted into the air injection port side of the sheet-like valve body. It is characterized by being provided with a nozzle guide welded part.
The method for removing a sheet-like valve body according to claim 8 includes a box and an air-filled buffer bag installed in the box, and the air-filled buffer bag has one end connected to an air inlet. The air outlet side of the sheet-shaped valve body is inserted into the buffer bag body, and the air inlet side is inserted into the buffer bag body. The box is configured to extend outward in the longitudinal direction of the buffer bag main body, and the box includes a box main body having an opening, and an inner cover and an outer cover provided in the box main body that close the opening. In the sheet-shaped valve body removal method of taking out the sheet-shaped valve body to the outside of the box, the air inlet side of the sheet-shaped valve body is closed at the end of the inner lid. and a bent portion of the outer cover, and between the upper surface of the inner cover and the lower surface of the outer cover, and is taken out to the outside of the box.
The air injection method according to claim 9 includes a box and an air-filled buffer bag installed in the box, and the air-filled buffer bag has an air injection port at one end and an air injection port at the other end. It consists of a sheet-shaped valve body with an air outlet as an air outlet, and a buffer bag main body.The air outlet side of the sheet-shaped valve body is inserted into the buffer bag body, and the air inlet side is inserted into the buffer bag body. The box is configured to extend outward in the longitudinal direction of the main body, and the box includes a box main body having an opening, and an inner cover and an outer cover provided in the box main body that close the opening. In the air injection method of injecting air into the buffer bag main body in the packaging material, the sheet-like valve body is used to connect the top surface of the inner lid closed from the outside of the box and the outer lid. The present invention is characterized in that air is injected into the buffer bag main body through the outer surface thereof and between the end of the inner cover and the bent portion of the outer cover.
Further, an air-filled buffer bag according to claim 10 is provided in a box, and comprises a sheet-like valve body having an air inlet at one end and an air discharge port at the other end, and a buffer bag main body. The air outlet side of the valve body is inserted into the buffer bag main body, and the air inlet side extends outward in the longitudinal direction of the buffer bag main body,
The sheet-like valve body is configured to extend outward in the longitudinal direction of the buffer bag main body at an angle of 45 degrees with respect to the longitudinal direction of the buffer bag main body.
Further, an air-filled buffer bag according to claim 11 is provided in a box, and comprises a sheet-shaped valve body having an air inlet at one end and an air outlet at the other end, and a buffer bag main body. The valve body is provided with one side on the air discharge port side and the other side on the air inlet side bent, one side of which is inserted into the buffer bag main body, and the other end parallel to the longitudinal direction. It is characterized by being configured to extend outward.

As described above, the packaging material according to claim 1 of the present invention includes a box and an air-filled buffer bag installed in the box, and the air-filled buffer bag has one end It consists of a sheet-shaped valve body with an air inlet and an air discharge port at the other end, and a buffer bag main body, and the air discharge port side of the sheet-shaped valve body is inserted into the buffer bag main body, and the air inlet The box is configured such that its sides extend outward in the longitudinal direction of the buffer bag main body, and the box includes a box main body having an opening, an inner lid provided in the box main body that closes the opening, and an outer lid. and a lid, the air inlet side of the sheet-like valve body is passed between the upper surface of the closed inner lid and the lower surface of the outer lid, and is pulled out of the box. Since air is injected through the air inlet, the desired packaging state can be obtained without damaging the original packaging appearance of the cardboard box or the like, and without requiring complicated packaging work. This makes it possible to reliably prevent damage to the packing object due to careless movement during transportation.
According to the packaging material according to claim 2, in the packaging material according to claim 1, the air inlet side of the sheet-like valve body is arranged so as to wrap around the end surface of the inner lid, so that the upper surface of the inner lid and the Since it is guided between the outer cover and the lower surface of the outer cover, the above effect can be achieved without any treatment being applied to the inner cover as well as the outer cover. Moreover, instead of being folded directly, it can be folded back by a gentle bend corresponding to the thickness of the inner cover.
According to the packaging material according to claim 3, in the packaging material according to claim 2, the air inlet side of the sheet-like valve body passes between the end surface of the inner lid and the bent part of the outer lid. Since it is guided between the upper surface of the inner lid and the lower surface of the outer lid, it is possible to secure expansion margin for the sheet-like valve body when air is injected.
According to the packaging material according to claim 4, in the packaging material according to claim 1, the inner lid has an opening covered by the outer lid, and the air inlet side of the sheet-like valve body has an opening that is covered by the outer lid. Since it is guided between the upper surface of the inner cover and the lower surface of the outer cover through the opening provided in the inner cover, the above effects can be achieved simply by providing the opening in the inner cover.
According to the packaging material according to claim 5, in the packaging material according to any one of claims 1 to 4, the sheet-like valve body is arranged at an angle of 45 degrees with the longitudinal direction of the buffer bag main body. Since it is configured to extend outward in the longitudinal direction of the bag main body, the length on the air inlet side is kept as short as possible, and the length of the sheet-like valve body between the length on the air inlet side is The paths into which air is injected can be folded and drawn out so that they do not overlap, that is, the flow paths are not blocked by their own overlap.
According to the packaging material according to claim 6, in the packaging material according to any one of claims 1 to 5, the sheet-like valve body is provided with a sewing machine for cutting off the tip end on the side of the air inlet. The opening allows the exposed part of the box to be cut out after packaging.
According to the packaging material according to claim 7, in the packaging material according to any one of claims 1 to 6, the air injection port side of the sheet-like valve body is provided with a guide for inserting the air injection nozzle. Since the nozzle guide welded part is provided, the ease of inserting the air injection nozzle can be improved.
According to a method for removing a sheet-like valve body according to claim 8, the method includes a box and an air-filled buffer bag installed in the box, and the air-filled buffer bag has one end injected with air. It consists of a sheet-like valve body with an inlet and an air outlet at the other end, and a buffer bag main body.The air discharge port side of the sheet-like valve body is inserted into the buffer bag main body, and the air inlet side is inserted into the buffer bag main body. The box is configured to extend outward in the longitudinal direction of the buffer bag body, and the box includes a box body having an opening, an inner lid and an outer lid provided in the box body that close the opening. In the sheet-shaped valve body removal method of taking out the sheet-shaped valve body to the outside of the box, the air inlet side of the sheet-shaped valve body is removed from the closed inner lid. Since the sheet-like valve body is removed from the box by passing it between the end and the bent part of the outer cover, passing between the upper surface of the inner cover and the lower surface of the outer cover, and taking it out to the outside of the box, Air can be injected efficiently by ensuring sufficient expansion margin.
According to a ninth aspect of the air injection method, the air injection method includes a box and an air-filled buffer bag installed in the box, and the air-filled buffer bag has an air injection port at one end. It consists of a sheet-shaped valve body with an air discharge port at its end and a buffer bag main body.The air discharge port side of the sheet-shaped valve body is inserted into the buffer bag main body, and the air inlet side is inserted into the buffer bag body. The box is configured to extend outward in the longitudinal direction of the main body, and the box includes a box main body having an opening, and an inner cover and an outer cover provided in the box main body that close the opening. In the air injection method of injecting air into the buffer bag body, the sheet-like valve body is used to inject the upper surface of the closed inner lid and the outer lid from the outside of the box. Since air is injected into the buffer bag main body through the outer surface of the buffer bag and between the end of the inner cover and the bent part of the outer cover, the expansion of the sheet-like valve body when air is injected is prevented. Air can be injected efficiently by securing a margin.
According to a tenth aspect of the present invention, there is provided an air-filled buffer bag, which is installed in a box and comprises a sheet-like valve body having an air inlet at one end and an air outlet at the other end, and a buffer bag body; The air discharge port side of the sheet-shaped valve body is inserted into the buffer bag body, and the air inlet side extends outward in the longitudinal direction of the buffer bag body, and the sheet-shaped valve body Since it is configured to extend outward in the longitudinal direction of the buffer bag main body at an angle of 45 degrees with the longitudinal direction of the buffer bag main body, the length on the air inlet side can be kept as short as possible, and The paths through which air is injected in the sheet-like valve body are folded together between the lengths on the air inlet side, and can be drawn out so that they do not overlap, that is, the flow paths are not blocked by their own overlap.
According to an air-filled buffer bag according to claim 11, the air-filled buffer bag is installed in a box and comprises a sheet-like valve body having an air inlet at one end and an air outlet at the other end, and a buffer bag main body. A shaped valve body is provided with one side on the air outlet side and the other side on the air inlet side bent, one side of which is inserted into the buffer bag main body, and the other end is bent parallel to the longitudinal direction. Since it is configured to extend outward, the other side can be pulled out along a direction parallel to the longitudinal direction of the buffer bag main body, which greatly contributes to automation of air injection work.

FIG. 1 is a diagram showing the first embodiment of the present invention, and is a perspective view showing a state in which an object to be packed is placed in a cardboard box and an air-filled buffer bag is filled with air. FIG. 1 is a diagram showing the first embodiment of the present invention, and is an exploded perspective view showing the packaging material in an exploded manner. 2 is a diagram showing the first embodiment of the present invention, and is a sectional view taken along line III-III in FIG. 1. FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing the first embodiment of the present invention, and is a plan view showing the configuration of an air-filled buffer bag. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing the first embodiment of the present invention, and is a plan cross-sectional view showing the configuration of a sheet-like valve body. FIG. 1 is a diagram showing the first embodiment of the present invention, and is a perspective view showing a state of a cardboard box before an object to be packed is placed therein. FIG. 1 is a diagram showing the first embodiment of the present invention, and is a perspective view showing a state in which an object to be packed is placed in a cardboard box. This is a diagram showing the first embodiment of the present invention, in which an object to be packed is placed in a cardboard box, an air-filled buffer bag is placed over it, and the air inlet side of the sheet-like valve body is placed outside the cardboard box. It is a perspective view showing the state where it was made to protrude. 9 is a diagram showing the first embodiment of the present invention, and is a perspective view showing a state in which the cardboard box is sealed after being in the state shown in FIG. 8. FIG. FIG. 9 is a diagram showing the first embodiment of the present invention, and is a perspective view showing a state in which air is being supplied from the air inlet after the state shown in FIG. 9 has been achieved. FIG. 2 is a diagram showing the first embodiment of the present invention, and is a perspective view showing a state in which air supply is completed and the air supply pipe is removed. FIG. 12 is a diagram showing the first embodiment of the present invention, and is a perspective view showing a state in which the tip of the air inlet is cut at a perforation after the state shown in FIG. 11 has been made. This is a diagram showing a second embodiment of the present invention, in which an object to be packed is placed in a cardboard box, an air-filled buffer bag is placed over it, and air is supplied to the sheet-like valve body through an opening formed in the inner lid. FIG. 3 is a perspective view showing a state where the injection port side is pulled out. It is a figure which shows the 2nd Embodiment of this invention, and is a top view which shows various aspects of the opening part formed in an inner lid. This is a diagram showing a third embodiment of the present invention, in which an object to be packed is placed in a cardboard box, an air-filled buffer bag is placed over it, and a sheet-shaped valve is inserted into the gap between the inner lid and the opposing double-opening lid. FIG. 3 is a perspective view showing a state in which the air inlet side of the body is pulled out. It is a figure which shows the 4th Embodiment of this invention, and is a top view of an air-filled buffer bag body.

Hereinafter, the first embodiment shown in FIGS. 1 to 12, the second embodiment shown in FIGS. 13 and 14, the third embodiment shown in FIG. 15, and the fourth embodiment shown in FIG. The packaging material of the present invention will be described by taking four embodiments as examples.
In the following description, first the basic structure of the packaging material of the present invention will be described based on the first embodiment, and then the packaging procedure when using the packaging material will be described. Furthermore, three types of modified examples of the packaging material of the present invention will be explained based on the second embodiment, the third embodiment, and the fourth embodiment, and finally, the above four embodiments and will refer to other embodiments of the packaging material of the present invention having different partial configurations.

[First embodiment]
(1) Composition of packaging materials (see Figures 1 to 5)
The packaging material 1 of the present invention includes a box 2 and an air-filled buffer bag 31 installed in the box 2. The air-filled buffer bag 31 has an air inlet 35 at one end and an air inlet 35 at the other end. It consists of a sheet-like valve body 41 with an air discharge port 39 and a buffer bag body 33. The air discharge port 39 side of the sheet-like valve body 41 is inserted into the buffer bag body 33, and the air inlet 35 side is inserted into the buffer bag body 33. The box 2 is configured to extend outward in the longitudinal direction of a buffer bag main body 33, and the box 2 includes a box main body 3 having an opening 12 and a lid 13 provided in the box main body 3 for closing the opening 12. It is composed of.
Then, the air inlet 35 side of the sheet-like valve body 41 is pulled out from between the box body 3 and the lid 13, and air A is injected through the pulled out air inlet 35. It is characterized by
Note that the air inlet 35 side refers to a portion from a non-sealed portion 63 to the air inlet 35, which will be described later, and the air outlet 39 side refers to a portion from the non-sealed portion 63 to the air outlet 39.

Here, the box referred to in the present invention includes boxes of various shapes and sizes made of cardboard, cardboard, synthetic resin, etc., and consists of a box body and a lid, and the box body includes: An opening is formed in at least a part of the box to allow the object to be packed in and out, and the lid consists of an inner lid and an outer lid, each of which includes a single-open type or double-open type lid connected to the box body.

In the packaging material 1A of this embodiment, a cardboard box 2 (the same reference numeral as the box 2 is used) having a rectangular parallelepiped shape as shown in the figure is used as the box 2. The cardboard box 2 is made by cutting cardboard whose strength is increased by a center liner into a predetermined shape and bending it into a box shape as a whole.
That is, in this cardboard box 2, the bottom surface of a rectangular cylindrical member surrounded on all sides by side walls 5, 7, 9, and 11 is closed by four wing plates 4a, 4b, 4c, and 4d. It has a box body 3 which is constructed by forming a bottom plate 4.

Further, the top surface of the box body 3 is open, and this serves as the above-mentioned opening 12 that is used when the object to be packed 81 is taken in and out of the box body 3.
In this embodiment, the lid 13 that closes the opening 12 of the box body 3 is composed of an inner lid 15 and an outer lid 21, and the inner lid 15 further includes a pair of double-opening lids 17 that open on both sides. , 19, and the outer lid 21 is comprised of a pair of double-opening lids 23 and 25 that open on both sides. Of course, the pair of double-opening lids 17, 19, which are the inner lid 15, are located opposite the wing plates 4c, 4a, and the pair of double-opening lids 23, 25, which are the outer lid 21, are opposite the wing plates 4d, 4b, respectively. They are formed with the same size and shape.

The air-filled buffer bag 31 shown in FIGS. 1 to 4 has a rectangular size that can cover and hide one side space S and upper space U created between the box body 3 and the object to be packed 81. It comprises a bag-shaped buffer bag main body 33 and a sheet-shaped valve body 41, which will be described later.
The buffer bag main body 33 is, for example, formed into a sealed bag by overlapping two films and thermally welding their outer edges, and when filled with air A, the buffer bag body 33 expands and absorbs the air. It is constructed to function like a bag.

Further, when the two films are thermally welded, a sheet-like valve body 41 shown in FIGS. 4 and 5 is inserted into a predetermined position, and the two films are thermally welded in this state. As shown in FIG. 4, the sheet-like valve body 41 is obliquely attached to a position near one corner of the buffer bag main body 33. As will be described later, when the air inlet 35 of the sheet-like valve body 41 is pulled out so as to protrude outside the cardboard box 2, the length on the air inlet 35 side is made as short as possible, and the air inlet is This is to prevent the air injecting paths in the sheet-like valve body 41 from being folded and overlapped between the lengths on the inlet 35 side, that is, to prevent the flow paths from being blocked by their own overlap. Therefore, the mounting position and mounting angle θ of the sheet-shaped valve body 41 to the buffer bag main body 33 are set to the position and angle at which the sheet-shaped valve body 41 can be drawn out from the air inlet 35 side most efficiently. There is. Unless there are any special circumstances, a reasonable mounting angle θ is 45 degrees.

As the sheet-shaped valve body 41, for example, a sheet-shaped check valve as disclosed in JP-A-5-118455 and JP-A-2012-101819, which have been filed by the applicant of the present patent, can be used. Can be used. This sheet-shaped valve body 41 is formed into a flat cylindrical shape by overlapping two strip-shaped sheet materials 43 and 45 and thermally welding the left and right sides thereof along the longitudinal direction, for example. .
Further, inside the heat-welded left and right heat-sealed parts 51 and 53, there are two sets of heat-sealed parts 55A, 55B, and 57A on the side of the air inlet 35, and three sets of heat-sealed parts 55A, 55B, and 57A, as an example, on the side of the air discharge port 39. , 57B, and 57C are formed.

Of these, two sets of heat seal parts 55A and 55B provided on the air injection port 35 side are nozzle guide welds that guide when inserting the air injection nozzle 69 on the air injection port 35 side of the sheet-shaped valve body 41. In order to function as the parts 55A and 55B (the same reference numerals as the heat seal parts 55A and 55B are used), the two sheet materials 43 and 45 can be made of slightly wide sheet materials. The nozzle guide welded portions 55A and 55B are configured, for example, by two sets of opposing flap-shaped members that are curved and inclined so as to narrow toward the air discharge port 39 side.

On the other hand, the three sets of heat seal parts 57A, 57B, and 57C provided on the air outlet 39 side allow air A to flow into the air outlet 39 side, but do not allow air A to flow into the air inlet 35 side. This is the part that directly functions as a check valve to restrict the outflow of water.
In this specification, the heat seal portions 57A, 57B, and 57C are separately referred to as valve flap portions 57A, 57B, and 57C (the same symbols as the heat seal portions 57A, 57B, and 57C are used). The portions 57A, 57B, and 57C are configured, for example, by three sets of opposing flap-shaped members that are linearly inclined so as to narrow toward the air discharge port 39 side.

Further, in a portion of the flow path 59 connecting the air inlet 35 and the air outlet 39 of the sheet-like valve body 41 near the air inlet 35, there is a marking 61 imitating an arrow that visually indicates the injection direction of the air A. Attached by printing.
Further, a non-sealing portion 63 is provided in the intermediate portion of the flow path 59 by, for example, two-color printing so that the sheet materials 43 and 45 do not weld to each other even when heated. As a result, the sheet-like valve body 41 is sandwiched between the opposing films of the buffer bag main body 33 before being thermally welded, and the entire body is thermally welded. After ensuring the communication of the passage 59, the sheet-like valve body 41 is welded to the inside of each of the two films of the buffer bag main body 33, so that an air-filled buffer bag 31 is formed. has been done.

Further, in the present embodiment, the sheet-like valve body 41 has a perforation 38 for cutting off the tip 37 on the side of the air inlet 35 pulled out to the outside of the cardboard box 2. As an example of a weakened part, the perforation 38 is used as a nozzle guide. It is provided so that the welded parts 55A, 55B can be generally cut off.
That is, the tip 37 of the sheet-like valve body 41 on the side of the air injection port 35 is necessary for inserting the air injection nozzle 69 when filling the air A, but becomes unnecessary after the air A is filled. The perforations 38 are provided in order to later cut out the tip 37 protruding from the box 21.

Furthermore, in this embodiment, in relation to the drawing mode of the sheet-like valve body 41 on the air inlet 35 side, which will be described next, the perforation 38 is formed in the longitudinal direction of the sheet-like valve body 41, as shown in FIG. As shown in FIG. 9, it is configured to be cut along the edge of the double-opening lid 23. In addition, in order to be able to cut cleanly along the edge of the double-opening lid 23, the extension line of the weld line between the sheet-like valve body 41 and the buffer bag main body 33 and the extension line of the perforation 38 should be at 90 degrees. It is best to set the respective intersection angles so that they intersect at .
In addition, other configurations of the weakened portion in place of the perforation 38 can be adopted, such as reducing the thickness of the resection site to make it easier to cut, or inserting slits at both ends of the resection site to guide the resection direction. be.

Although the packaging material 1A according to the present embodiment is characterized by having such a configuration, a drawer mode in which the air inlet 35 side of the sheet-like valve body 41 is pulled out to the outside of the cardboard box 2 is also adopted in this embodiment. This is a feature of the packaging material 1A according to the form.
That is, in this embodiment, the air inlet 35 side of the sheet-like valve body 41 is located at the gap 65 between one of the double-opening lids 17 of the inner lid 15 and the box body 3, and more specifically, on the one side of the outer lid 21. After passing through the gap 65 between the inward folding part of the double-opening lid 23 and the side end surface of one of the double-opening lids 17 of the inner lid 15, the gap between the inner lid 15 and the outer lid 21 is overlapped. That is, after passing between the upper surface of one of the double-opening lids 17 of the inner lid 15 and the lower surface of one of the double-opening lids 23 of the outer lid 21, the tip portion 37 on the air inlet 35 side is placed outside the cardboard box 2. It is configured so that it can be pulled out in a protruding state.

(2) Packing procedure (see Figures 6 to 12)
Next, a procedure for packaging the object to be packed 81 using the packaging material 1A according to the present embodiment configured as described above will be described.
First, as shown in FIG. 6, the air-filled buffer bag 31 is set as shown in the cardboard box 2 whose top surface is open and an opening 12 is formed. That is, the side facing portion 33A of the buffer bag main body 33 of the air-filled buffer bag 31 is installed so as to face the inner surface of one desired side wall (in the illustrated embodiment, the side wall 5).

In addition, the remaining top facing portion 33B of the buffer bag body 33 is hooked to the double-opening lid (in the illustrated embodiment, the double-opening lid 19) of the inner lid 15 in the upright position connected to the side wall 5, and is attached to the outside. It has been folded back.
Of course, everything may be done manually, but if the series of packing operations is carried out using a belt conveyor, roller conveyor, etc. (not shown), the cardboard box 2 in the state shown in FIG. 6 is placed on the conveyor. and transported to the next process.

Next, as shown in FIG. 7, the object to be packed 81 is carried into the cardboard box 2 from above.
Next, as shown in FIG. 8, the top facing portion 33B, which was hooked on the double-opening lid 19 of the inner lid 15 and folded back to the outside, is bent toward the object to be packed 81 and placed over the top surface of the object to be packed 81. . Then, one double-opening lid of the inner lid 15 (the double-opening lid 17 in the illustrated embodiment) is horizontally tilted inward, and the space between the double-opening lid 17 and the side wall (the side wall 11 in the illustrated embodiment) adjacent to the double-opening lid 17 is then horizontally tilted inward. The sheet-like valve body 41 is bent through the gap 65 to reach the upper surface of the double-opening lid 17. At this time, the air injection 35 side of the sheet-like valve element 41 is folded back so as to wrap around the side end surface of one of the double-opening lids of the inner lid 15 (in the illustrated embodiment, the double-opening lid 17), so that the sheet-like valve body 41 is not folded directly. Instead of being folded back, the inner lid 15 can be gently bent by the thickness of the cardboard of one of the double-opening lids (in the illustrated embodiment, the double-opening lid 17).

In this state, as shown in FIG. 8, the tip 37 of the sheet-like valve body 41 on the side of the air inlet 35 comes to protrude to the outside of the cardboard box 2, and the double lid 17 and the side wall 9 are connected to each other. The perforation 38 is located along the connecting portion of the inner cover 15, that is, the side where one double-opening lid (in the illustrated embodiment, the double-opening lid 17) is folded inward. Of course, it also follows the edge of the double-opening lid 23.
Next, as shown in FIG. 9, the double-opening lid 19 of the other inner lid 15 is horizontally tilted inward, and the two double-opening lids 23 and 25 of the outer lid 21 are then horizontally tilted inward to open the opening 12. The area is closed and pasted using adhesive tape (not shown) to seal it.

Next, as shown in FIG. 9, the air injection nozzle 69 is inserted into the air injection port 35 of the sheet-like valve body 41, and as shown in FIG. 10, the air gun 71 is attached and injection of air A is started.
Note that air A is supplied to the air gun 71 from an air compressor or an air chamber (not shown).
As the injection of air A progresses, the buffer bag main body 33 of the air-filled buffer bag 31 is caused by the air flowing through the flow path 59 of the sheet-like valve body 41, as shown in FIGS. 2 and 3. It expands in an "L" shape.

That is, the side facing portion 33A of the buffer bag main body 33 expands so as to fill the lateral space S between the side wall 5 of the cardboard box 2 and the object to be packed 81. On the other hand, the top facing portion 33B of the buffer bag main body 33 expands to fill the upper space U between the two double-opening lids 17 and 19 of the inner lid 15 and the object to be packed 81.
As a result, in the cardboard box 2, the packing object 81 is pressed by the buffer bag main body 33 from two directions, lateral and upward, by the side wall 5 side and the inner lid 15 side, and the object 81 is pressed during transportation. Inadvertent movement of the object to be packed 81 and problems such as damage to the object to be packed 81 caused by this are prevented.

After filling the air A, as shown in FIG. 11, the air gun 71 and the air injection nozzle 69 are removed, and as shown in FIG. Once the side tip 37 is cut off, the series of packing operations is completed.

According to the above configuration, the cardboard box 2 itself has not undergone any processing, so the appearance of the cardboard box 2 when packed is exactly the same as the conventional one, and the cardboard box 2 is created by adding cuts, openings, etc. There is no need to worry about the intrusion of foreign objects, dirt, dust, etc. into the interior of the item 2, and in addition, the complicated packaging work that was previously performed is no longer necessary, and the item 81 to be packed can be accidentally moved and damaged during transportation. It is possible to prevent problems such as
Also, while the air A is injected, the flow path 59 itself in the sheet-like valve body 41 needs to expand, but since the air outlet 39 side is located inside the buffer bag main body 33, when air is blown in, the flow path 59 itself needs to expand. It is only necessary to inflate the buffer bag body 33, and when substantially sufficient air is blown into the buffer bag body 33, the buffer bag body 33 becomes flat due to the internal pressure, and a check valve action is performed. On the other hand, the air inlet 35 side is sandwiched between the two planes of the double-opening lid 17, which is the inner lid, and the double-opening lid 23, which is the outer lid, and becomes flat between them unless air is blown into it. When it is blown in, it first deforms and passes through the double-hung lid 23, which is the outer lid, as if pushing it upward, and then, at the gap 65, the part below the valley fold of the double-hung lid 23, which is the outer lid, passes through. The air passes through the side wall 5 while being deformed so as to spread it out laterally, and as a result, the air moves toward the air outlet 35 and is blown into the buffer bag main body 33 from the air outlet 35. can. That is, since the sheet-like valve body 41, especially the flow path 59 on the side of the air inlet 35, is arranged at a position where the box can be deformed outward, the injection of air A is not obstructed. .
Furthermore, if the tip 37 of the sheet-like valve body 41 on the side of the air inlet 35 is cut off using the perforation 38, there will be no protrusion to the outside, which will not interfere with subsequent conveyance work. , the appearance of the cardboard box can be exactly the same as the conventional one.
In the above embodiment, the buffer bag main body 33 expands in an "L" shape inside the box 2, that is, one side formed between the box main body 3 and the object to be packed 81. Although the buffer bag body 33 in the present invention is described as being capable of covering and concealing the side chamber S and the upper space U, the buffer bag body 33 in the present invention does not necessarily have to have such a shape with such a length and size. In short, any shape with a length and size that allows the object to be packed to be kept in a certain position within the box 2 is fine.

[Second embodiment] (See FIGS. 13 and 14)
The packaging material 1B according to the second embodiment has an opening 27 formed in a part of the inner lid 15 that is not visible from the outside, and a method of pulling out the sheet-like valve body 41 using the opening 27. This is different from the packaging material 1A according to the first embodiment.
Therefore, the explanation of the configuration of the parts common to the first embodiment will be omitted here, and the explanation will be focused on the configuration unique to this embodiment that is different from the first embodiment.

That is, in this embodiment, the opening 27 is provided in one of the double-opening lids of the inner lid 15 (the double-opening lid 17 in the illustrated embodiment). Specifically, as an example, a rectangular hole 27a is provided near the side edge of the double-opening lid 17 on the side wall 11 side. It is used for the drawer on the injection port 35 side.
In addition to the hole 27a shown in FIG. 14(a), the opening 27 may include a recess 27b shown in FIG. 14(b), a notch 27c shown in FIG. 14(c), or a slit shown in FIG. 14(d). 27d, and a notch 27e shown in FIG. 14(e). Other various shapes of the opening 27 (not shown) are conceivable.

In this embodiment, the air inlet 35 side of the sheet-like valve body 41 is passed through the opening 27 provided in one of the double-opening lids 17 of the inner lid 15, and the double-opening lid 17 is horizontally tilted inward. It is configured to be pulled out to the top surface and extended to the outside of the cardboard box 2 along the top surface of the double-opening lid 17.
The packaging material 1B according to the present embodiment configured in this manner also exhibits the same functions and effects as the packaging material 1A according to the first embodiment, and the appearance of the cardboard box 2 is as described above. This is similar to the first embodiment, and there is no concern about foreign matter, dirt, dust, etc. entering the cardboard box 2, and the complicated packing work that was conventionally performed is no longer necessary, and the transportation Since the object to be packed 81 is prevented from being moved inadvertently within the cardboard box 2, problems such as damage to the object to be packed 81 during transportation are also prevented.

[Third embodiment] (see FIG. 15)
The packaging material 1C according to the third embodiment is an embodiment in which the mounting position of the sheet-like valve body 41 and the position at which it is pulled out to the outside are changed. Here, explanations of the configurations of parts common to the first embodiment and the second embodiment will be omitted, and this embodiment, which is different from the first embodiment and the second embodiment, will be omitted. The explanation will focus on the unique configuration.
Specifically, as shown in FIG. 15, the sheet-like valve body 41 is straightly projected outward from the tip of the buffer bag main body 33, and horizontally extends inside the two double-opening lids 17 and 19 of the inner lid 15. It is pulled out to the outside through the gap 67 created when the lid is folded down and between the upper surface of the double lid 17 as the inner lid and the lower surface of the double lid 25 as the outer lid so as to straddle the double lid 17. It is configured as follows.

In this embodiment, the air inlet 35 side of the sheet-like valve body 41 is placed along the upper surface of one of the double-opening lids 17 of the inner lid 15 that is horizontally turned inward, and the sheet-shaped valve body 41 is placed on the outside of the cardboard box 2 as it is. A mode is adopted in which the material is drawn out in such a way as to lead to. This embodiment is suitable for packing an object whose outer shell is not located below the buffer bag main body 33 where the air outlet 39 side is located. This is because in the part where the air outlet 39 side is located, a part of the flow path on the air inlet 35 side overlaps, so the buffer bag main body 33, where the air outlet 39 side is located, is expanded while being pushed downward. This is because we need an area to consider.
The packaging material 1C according to the present embodiment configured in this way is also similar to the first embodiment, and the appearance of the cardboard box 2 is the same as that of the first embodiment and the second embodiment. It is the same as the packaging materials 1A and 1B related to the form, and there is no concern about foreign matter, dirt, dust, etc. entering the cardboard box 2, and the complicated packing work that was conventionally performed is no longer necessary. Since the object to be packed 81 is prevented from being moved inadvertently within the cardboard box 2 during transportation, problems such as damage to the object to be packed 81 during transportation are also prevented.

[Fourth embodiment] (see FIG. 16)
The sheet-like valve body 41 in the fourth embodiment has an L-shape. The air discharge port 39 side of one side of the L-shape is welded so as to extend in a direction perpendicular to the longitudinal direction of the buffer bag main body 33. In this case, the other side of the L-shape on the side of the air inlet 35 is extended in a direction parallel to the longitudinal direction of the buffer body 33. The air inlet 35 side of the sheet-like valve body 41 is connected to a gap 65 between one of the double-opening lids 17 of the inner lid 15 and the box body 3, and more specifically, to the inside of one of the double-opening lids 23 of the outer lid 21. After passing through the gap 65 between the folding part and the side end surface of one of the double-opening lids 17 of the inner lid 15, pass through the gap between the inner lid 15 and the outer lid 21, that is, the gap between the inner lid 15 and the outer lid 21. After passing between the upper surface of one double-opening lid 17 and the lower surface of one double-opening lid 23 of the outer lid 21, the cardboard box 2 is pulled out with the tip 37 on the side of the air inlet 35 protruding outside. It is configured so that
As a result, the other sides protrude outward from the cardboard box along a direction parallel to the longitudinal direction of the buffer body, which is advantageous, for example, when automating air injection work.
Although the sheet-like valve body 41 is L-shaped in this embodiment, it may be J-shaped or equilateral L-shaped.In short, it is provided with one side bent and the other side bent. It is sufficient that the sides protrude outward from the cardboard box along a direction parallel to the longitudinal direction of the buffer main body, and therefore, one side and the other side do not necessarily need to be perpendicular to each other.

[Other embodiments]
The present invention is not limited to the first to fourth embodiments.
For example, in the first to third embodiments, the inner lid and the outer lid each have a pair of double-opening lids, but the invention is not limited to this. , lids with various configurations are envisioned.
For example, it is also possible to configure only the inner lid with a pair of double-opening lids and the outer lid with a single single-opening lid.
It is also conceivable that the lid is provided separately from the box body.
Further, although the first to third embodiments have been described using a cardboard box as an example, boxes of various shapes and sizes made of cardboard, synthetic resin, etc. are also conceivable. .

Further, the structure of the check valve described in the description of the first to fourth embodiments is only an example, and various other check valves formed by forming weld lines may be used as long as they function as a check valve. It is possible to adopt Further, the buffer bag main body described in the first to third embodiments has a single large air chamber, but the buffer bag main body has a structure in which a plurality of small air chambers are connected. It is also possible to adopt 33.
In addition, the illustrated configuration is merely an example.

The present invention can be used when it is desired to package objects of various shapes and sizes without the need for complicated packing operations, while preventing the objects from being accidentally moved during transportation, and can be used to This invention relates to a device that can be used when it is desired to obtain a packaging state in which there is no opening or the like that can be seen from the outside in a cardboard box when packaging is completed, without damaging the appearance when packaging.

1 Packing material 2 Cardboard box (box)
3 Box body 4 Bottom plate 4a Wing plate 4b Wing plate 4c Wing plate 4d Wing plate 5 Side wall 7 Side wall 9 Side wall 11 Side wall 12 Opening 13 Lid 15 Inner lid 17 Double-opening lid 19 Double-opening lid 21 Outer lid 23 Double-opening lid 25 Double-opening lid 27 Opening Part 27a Hole 27b Recess 27c Notch 27d Slit 31 Air-filled buffer bag 33 Buffer bag main body 33A Side facing part 33B Top facing part 35 Air inlet 37 Tip part 38 Sewing surface 39 Air outlet 41 Sheet valve Body 43 Sheet material 45 Sheet material 51 Heat-sealed portion 53 Heat-sealed portion 55 Nozzle guide welded portion (heat-sealed portion)
57 Valve flap (heat seal part)
59 Flow path 61 Marking 63 Non-sealed part 65 Gap 67 Gap part 69 Air injection nozzle 71 Air gun 81 Object to be packed A Air S Side space U Upper space θ Installation angle

Claims (11)

box and
An air-filled buffer bag installed inside the box,
Equipped with
The air-filled buffer bag body consists of a sheet-like valve body with an air inlet at one end and an air discharge port at the other end, and a buffer bag main body, and the air-filling type buffer bag body has an air discharge port side of the sheet-like valve body. inserted into the buffer bag main body, with the air inlet side extending outward in the longitudinal direction of the buffer bag main body,
The box is composed of a box body having an opening, and an inner lid and an outer lid provided in the box body that close the opening,
The air inlet side of the sheet-like valve body is pulled out of the box through the space between the upper surface of the closed inner cover and the lower surface of the outer cover, and air is supplied through the drawn out air inlet. A packaging material characterized by being injected with. The packaging material according to claim 1,
The packaging material is characterized in that the air inlet side of the sheet-like valve body is guided between the upper surface of the inner lid and the lower surface of the outer lid so as to wrap around the end surface of the inner lid. The packaging material according to claim 2,
The air inlet side of the sheet-like valve body is guided between the upper surface of the inner lid and the lower surface of the outer lid through between the end surface of the inner lid and the bent part of the outer lid. packaging materials. The packaging material according to claim 1,
The inner cover has an opening that is covered by the outer cover, and the air inlet side of the sheet-like valve body passes through the opening provided in the inner cover to the upper surface of the inner cover and the outer cover. A packaging material characterized by being guided between the bottom surface of the In the packaging material according to any one of claims 1 to 4,
A packaging material characterized in that the sheet-like valve body is configured to extend outward in the longitudinal direction of the buffer bag body at an angle of 45 degrees with respect to the longitudinal direction of the buffer bag body. In the packaging material according to any one of claims 1 to 5,
A packaging material characterized in that the sheet-like valve body is provided with a perforation for cutting off a tip portion on the side of the air inlet. In the packaging material according to any one of claims 1 to 6,
A packaging material characterized in that a nozzle guide welded portion for guiding insertion of an air injection nozzle is provided on the air injection port side of the sheet-like valve body. box and
An air-filled buffer bag installed inside the box,
Equipped with
The air-filled buffer bag body consists of a sheet-like valve body with an air inlet at one end and an air discharge port at the other end, and a buffer bag main body, and the air-filling type buffer bag body has an air discharge port side of the sheet-like valve body. inserted into the buffer bag main body, with the air inlet side extending outward in the longitudinal direction of the buffer bag main body,
The box is a packaging material composed of a box body having an opening, and an inner lid and an outer lid provided in the box body that close the opening,
In the sheet-shaped valve body removal method for taking out the sheet-shaped valve body outside the box,
Pass the air inlet side of the sheet-like valve body between the closed end of the inner lid and the bent part of the outer lid, and between the upper surface of the inner lid and the lower surface of the outer lid, and A method for taking out a sheet-shaped valve body, characterized in that the sheet-like valve body is taken out outwardly. box and
An air-filled buffer bag installed inside the box,
Equipped with
The air-filled buffer bag body consists of a sheet-like valve body with an air inlet at one end and an air discharge port at the other end, and a buffer bag main body, and the air-filling type buffer bag body has an air discharge port side of the sheet-like valve body. inserted into the buffer bag main body, with the air inlet side extending outward in the longitudinal direction of the buffer bag main body,
The box is a packaging material composed of a box body having an opening, and an inner lid and an outer lid provided in the box body that close the opening,
In the air injection method of injecting air into the buffer bag body,
Using the sheet-like valve body, pass from the outside of the box between the top surface of the closed inner cover and the outer surface of the outer cover, and between the end of the inner cover and the bent part of the outer cover. An air injection method characterized in that air is injected into the buffer bag body. installed inside the box,
It consists of a sheet-shaped valve body with an air inlet at one end and an air outlet at the other end, and a buffer bag body,
The air outlet side of the sheet-like valve body is inserted into the buffer bag main body, and the air inlet side extends outward in the longitudinal direction of the buffer bag main body,
The air-filled buffer bag is characterized in that the sheet-like valve body is configured to extend outward in the longitudinal direction of the buffer bag body at an angle of 45 degrees with respect to the longitudinal direction of the buffer bag body. body. installed inside the box,
It consists of a sheet-shaped valve body with an air inlet at one end and an air outlet at the other end, and a buffer bag body,
the sheet-like valve body is provided with one side on the air discharge port side and the other side on the air inlet side bent;
An air-filled shock absorbing bag, characterized in that one side thereof is inserted into the shock absorbing bag main body, and the other end extends outward in parallel with the longitudinal direction.

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