JP4830510B2 - Packaging for microwave oven heating - Google Patents

Description

The present invention relates to a microwave oven in which a flexible packaging bag is accommodated in a packaging box for heating a microwave oven applied to the exterior of a flexible packaging bag sealed and filled with cooked food such as retort food that can be heated in a microwave oven. The present invention relates to a heating package.

2. Description of the Related Art Conventionally, a flat rectangular paper box has been proposed that can be heated in a microwave oven while foods that can be tasted only by heating, such as a cooked retort curry, while being stored in a flexible packaging bag. The flexible packaging bag stored in the microwave heating wrapping paper box has a steam relief portion that opens by the vapor pressure when the internal vapor pressure rises to a predetermined pressure or higher due to microwave heating. There is a flat thing provided at a position close to the side, and in the wrapping paper box storing this soft wrapping bag, for the purpose of preventing the steam discharged from the soft wrapping bag from being trapped inside the box In addition, a device has been devised so that the inside of the box can be opened by opening a portion including the top plate that closes one end of the box body (see, for example, Patent Document 1 and Patent Document 2).
Further, a force for deforming the shape of the box body acts in the direction in which the soft packaging bag swells due to the increase in the internal vapor pressure during microwave heating (the thickness direction of the soft packaging bag). As described above, there has been proposed an attempt to stabilize the shape of the entire packaging paper box by suppressing the expansion of the remaining portion other than the portion located in the opening portion of the flexible packaging bag with the packaging paper box.
Japanese Patent No. 3560862 JP 2004-299716 A

However, in the conventional wrapping paper box described above, the steam escape portion of the soft packaging bag directly faces the outside at a portion opened to the outside, and the steam escape portion is not covered by the wrapping paper box. For this reason, when the steam is vigorously removed from the steam escape section by heating in the microwave, it is blown out from the steam escape section together with a part of the cooked food soup and ingredients and steam that is contained in the container. The wall could be soiled.
In addition, in the structure in which an opening is obtained by opening a wide part including the top plate at one end of the box body from the breaking position, the size in the length direction of the box body of the wrapping paper box is opened and unfolded Will also grow. Therefore, if it is placed on the turntable of a microwave oven in a lying state, the amount of protrusion from the turntable will increase, and the part that is turned over when rotating will come in contact with the wall surface in the cabinet and on the turntable. There is a problem that the wrapping paper box stops rotating, and because it does not rotate, overheating occurs in some ingredients of the contents, and this remains in contact with the packaging material (sheet material) of the soft packaging bag It will cause a pinhole.
Furthermore, when the microwave oven is heated with a structure that suppresses the swelling of the flexible packaging bag with a paper box, the contents of the flexible packaging bag are difficult to move inside the bag, and the non-moving ingredients are overheated. There is a problem that a pinhole is generated in the sheet material in contact with the overheated material.

  Therefore, in view of the above circumstances, the present invention prevents the steam escape portion of the flexible packaging bag from directly facing the outside even if the microwave-wrapping wrapping paper box is opened when performing heating using a microwave oven, and opens it. The problem is to make the shape of the part small, and to make the flexible packaging bag easy to expand during microwave heating, and even if microwave heating is performed, the inside of the cabinet will not become dirty and may shift on the turntable. Furthermore, it aims at improving the fluidity | liquidity of the accommodation accommodated in the flexible packaging bag, and preventing generation | occurrence | production of the pinhole by overheating of ingredients.

The present invention has been made in consideration of the above problems, and when the internal vapor pressure rises to a predetermined pressure or higher due to microwave heating, the vapor escape portion opened by this vapor pressure is close to one side of the bag upper surface. A paper box for storing a flat-shaped soft packaging bag provided on the upper surface plate and the soft packaging, the box body portion being opposed to the upper surface of the bag provided with the vapor escape portion of the soft packaging bag housed in the box consists of a bag bottom surface on opposite lower face plate and the side plate of the bag, one end of Hakodo portion is closed by top faceplate vapor relief portion of the flexible packaging bag corresponds to the side of the side located, the Hakodo portion The other end is a wrapping paper box for heating a microwave oven having a flat rectangular parallelepiped shape that is closed by a bottom plate corresponding to the side opposite to the side of the soft escape bag side of the steam escape portion ,
A portion of the upper surface plate covering the vapor escape portion and corresponding to the portion on the one side of the bag upper surface from the vapor escape portion on the upper surface of the bag of the flexible packaging bag , the end is between the upper surface plate and the top plate are incision the tab connected to the circular shaped top plate incision lines to reach the folded portion of the formed, along the folding portion between the upper plate and the top plate continuously in the score line of the knob piece A rupture line is provided, and a crease is provided from the folded part between both sides of the knob piece to the folded part end to the folded part end between the top plate and the bottom plate,
A portion on the top plate side of the bottom plate is provided with a break line that is inclined toward the center side of the bottom plate from each position of both ends of the fold between the top plate and the bottom plate, and A crease is put from the break line end located at the same distance from the top plate side in the break line to the fold end between the bottom plate and the bottom plate,
By turning the top plate that breaks the breaking line continuous with the cut line of the knob from the knob, the top plate side portion of the top plate corresponds to the steam escape portion of the soft packaging bag inside the box. an opening is formed at one end of the Hakodo part, by raising the accompanying side plate to the top plate and the push-up of the upper plate due to swelling of the soft packaging bag during microwave heating, the cross-sectional fracture said break line of the lower surface plate Then, the fold line position of the upper surface plate and the crease position of the lower surface plate are obtained by the breaking of the breaking line on the lower surface plate and the rotation of the side surface plate where the end portions on the opening side of the side surface plate come close to each other preparative by bending is, the configuration and the electronic oven heating wrap box Hakodo portion is shaped deformed earlier opening shape opened the opening of the box body part according bulge of flexible packaging bags,
The soft package housed in the microwave heating wrapping paper box and
A packaging for heating a microwave oven comprising:
A plurality of the steam escape portions of the flexible package are provided side by side in the direction along the longitudinal direction of the one side of the upper surface of the bag, and at least two of the steam escape portions are continuous to the one side of the flexible package. In the vicinity of the steam escape portion, the crease of the top plate of the microwave heating wrapping paper box is located on the side of the side that is continuous with the one side of the flexible package. providing microwave heating package, characterized in that it is arranged so as to correspond to, Ru der which solve the above problems.

According to the microwave oven wrapping paper box of the present invention, when the microwave oven wrapping paper box is opened, the top plate side portion of the top plate corresponds to the steam escape portion of the soft packaging bag inside the box. Since the storage space inside the box is opened at the position of the top plate side of the torso, even if the liquid escaped part or small piece of material blows out during heating of the microwave oven without exposing the vapor escape part, they will be It will hit the part on the face plate side, and therefore it will not scatter in the cabinet. In addition, the vertical dimension of the top plate (the thickness of the box) and the height of the knob are not increased in the length direction of the box body, and the top plate side is turned up. Even if this microwave heating wrapping paper box is placed on the turntable, the amount protruding from the turntable is extremely small. Therefore, it is possible to prevent the microwave oven heating wrapping paper box from rotating due to contact with the inner wall or the like in the warehouse during rotation and causing overheating of the ingredients of the contents.
Furthermore, if the flexible packaging bag expands during heating in the microwave oven, the upper surface plate and the lower surface plate are bent at the positions of the creases provided on the upper surface plate and the lower surface plate, respectively, so that the entire upper surface plate and the entire lower surface plate are folded. No drag is generated, the pressing force applied by the upper surface plate and the lower surface plate to the inflating soft packaging bag is reduced, and the degree of freedom of the inflating of the soft packaging bag in the bag thickness direction is increased. Therefore, the internal space of the flexible packaging bag is widened, the fluidity of the stored item is ensured, and the overheating state due to the stored item not moving can be prevented.
In addition, according to the microwave oven packaging body of the present invention, an excellent product free from the occurrence of fouling and pinholes during heating without increasing the labor of obtaining an opening when performing microwave heating. It becomes.

Next, the present invention will be described in detail based on the embodiment shown in FIGS.
In the figure, reference numeral 1 denotes a microwave oven packaging body. The microwave oven packaging body 1 has a flat, rectangular parallelepiped paper packaging box 2 for heating a microwave oven, and the inside of the box is flat. The flexible packaging bag 3 is stored.
The soft wrapping bag 3 is obtained by stacking sheet materials, heat-sealing four sides, and storing a container (cooked food) that has been heat processed in advance. And, in order to prevent the vapor pressure caused by the vapor generated from the stored item from being raised more than necessary when the microwave oven is heated, the vapor escape portion 4 opened by this vapor pressure when the internal vapor pressure rises above a predetermined pressure. Is provided at a position near one side of the upper surface of the bag. (Figure 3)

The microwave heating wrapping paper box 2 is formed from, for example, a blank shown in FIG. 2, and includes a box body part that is formed by connecting an upper plate 5, a side plate 6, a lower plate 7, and a side plate 6. The box body portion 9 is obtained by bending and sticking the body with the adhesive allowance 8. Further, on one end side of the box body portion 9, a top plate forming flap 10a connected to the upper surface plate 5 and the lower surface plate 7 is provided. The top plate 10 is formed by folding and bonding, and one end side of the box body 9 is closed. Similarly, the bottom plate connected to the upper surface plate 5 and the lower surface plate 7 on the other end side of the box body 9. The bottom plate 11 is formed by folding and bonding the formation flap 11a, and the other end side of the box body portion 9 is closed. In addition, the flap 12 is connected also to each side plate 6, and it is folded when each edge part of the box trunk | drum 9 is closed, but it only folds and it does not stick.
The packaging material for the microwave heating wrapping paper box 2 can use paper of the same material and basis weight as the wrapping paper box used for the exterior of a normal retort pouch.

Furthermore, the microwave oven wrapping paper box 2 is simply opened by turning the top plate side of the box body 9 so that the size in the box body length direction does not increase in the opened state. In order to prevent the soft packaging bag 3 from bulging, resistance is hardly applied from the paper box 2 side as much as possible.
First, in the microwave heating packaging 1, as shown in FIG. 1, the portion 13 on the top plate side of the top plate 5 of the microwave heating packaging paper box 2 is steam of the flexible packaging bag 3 housed inside the box. Corresponding to the region on one side of the bag upper surface from the position of the escape portion 4 , the portion continuing to this portion 13 covers the steam escape portion 4 (FIG. 4). And the said steam escape part 4 itself turns up, for example, when a part of sheet material of the upper surface part of the flexible packaging bag 3 is turned back, the opposing surfaces in the turned back part are bonded together, and the vapor pressure more than predetermined is applied. The inner surfaces of the portions are separated from each other, and a steam escape opening such as a slit that has been cut in advance is opened so as to escape the steam, and the center in the width direction of the flexible packaging bag 3 at the folded portion of the sheet material It is provided at three locations: a location and a location near the side seal.

Then, a top plate side of the upper plate 5 Te said portion 13 smell, the tab 14 continuous with the top plate 10 via the folded portion between the top surface plate 10 and the upper plate 5 is cut formed. The knob 14 is positioned so as to correspond to the center of the fold in the direction along the fold between the top plate 10 and the top plate 5. Since the position of the knob 14 does not correspond to the steam escape portion 4 as described above, the steam escape portion 4 is also exposed from the notch portion formed in the portion 13 by raising or lowering the knob 14. Do not put out. The cut line 15 that cuts and forms the knob piece 14 has an arcuate end that reaches a fold between the upper surface plate 5 and the flat plate 10 as shown in the figure, and is formed of discontinuous cuts. Is.
In addition, the break line 16 along the fold between the top plate 10 and the top plate 5 extends to each end of the fold so as to be continuous with the end of the cut line 15 forming the knob 14. Is provided.
Further, as shown in the drawing, one end of each of the top plate 5 and the side plate 6 is placed between the knob 14 and the end of the folded portion (folded portion between the top plate 10 and the top plate 5). A crease 17 is provided that reaches the break line 16 and has the other end reaching the end of the fold between the bottom plate 11 and the top plate 5. The folding ruffled 17 is set so as to pass through the vicinity of the part amount that corresponds to the vapor relief portion 4 in the side seal portion side of the box inside the flexible packaging bag 3.

  On the other hand, in the lower surface plate 7 of the wrapping paper box 2 for heating a microwave oven, as shown in FIG. 2, the top surface plate 10 and the lower surface plate 7 are connected to a portion 18 on the top surface plate 10 side of the lower surface plate 7. Break lines 19 that are inclined toward the center of the lower surface plate 7 are provided from the respective positions at both ends of the folded portion therebetween. Further, the lower end of each of the breaking lines 19 is at a position equidistant from the top plate 10 in the length direction of the box body 9, and is continuous with the lower end and bent at the position of the lower end. A crease 20 is provided across the end of the fold between the bottom plate 11 and the bottom plate 7.

As described above, in the microwave heating wrapping paper box 2, the knob 14 is cut and formed in the portion 13 on the top plate 10 side of the top plate 5, and along the fold between the top plate 5 and the top plate 10. Since the break line 16 is provided, and further, the break line 19 is provided in the top plate side portion 18 of the lower surface plate 7, the grip piece 14 is lifted or the position of the handle piece 14 is pushed in. By opening the top plate 10, the top plate 10 side portion, which is one end of the box body of the microwave heating wrapping paper box 2, is opened, and the inside of the box is opened to the outside. That is, the opening is positioned on the side of the accommodated flexible packaging bag 3 where the steam escape portion 4 is positioned.
As described above, each of the steam escape portions 4 of the packaging bag 3 is located at a position corresponding to the portion 13 of the upper surface plate 5, and the flexible packaging bag 3 is inflated and the box body itself is inflated as will be described later. There is no direct exposure to the outside. Therefore, the portion 13 of the upper surface plate 5 is positioned even if the ingredients of the contained material and the like pass through the steam escape portion 4 together with the steam when the steam blows out from the steam escape portion 4 vigorously when heating the microwave oven. Since it touches and adheres to the lever part, it is possible to reliably prevent the inside of the cabinet from being damaged due to scattering.
Further, when the top plate 10 is turned open, the size of the paper box itself in the box body length direction is increased. However, the height of the top plate 10 that is opened at the maximum (flat for heating the microwave oven). The thickness of the storage paper box) and the height dimension of the knob 14 (length in the longitudinal direction of the box body on the top plate) are only added, and are not excessively large (FIG. 5). As a result, even when the microwave heating wrapping paper box 2 is placed on the turntable with the top plate 10 side open, the amount of protrusion is small, and even when the microwave oven is heated, it does not come into contact with the inner wall surface. It is possible to prevent the rotation of the wrapping paper box 2 for heating a microwave oven by contacting the inner wall surface.

When the microwave oven is heated, the flexible packaging bag 3 expands, and the upper surface portion and the lower surface portion swell so that the central portions of the upper surface portion and the lower surface portion of the flexible packaging bag 3 are separated from each other. The upper surface plate 5 and the lower surface plate 7 of the storage paper box 2 are pushed from the inside of the box. At this time, the portions where the bulges of the upper surface portion and the lower surface portion of the flexible packaging bag 3 come into contact with and push the center portions of the upper surface plate 5 and the lower surface plate 7, and the upper surface plate 5 is pushed up. . As the upper surface plate 5 is pushed up, the side plates 6 are also pulled up, and the upper surface plate 5 is pushed up and the side surface plate 6 is pulled up, whereby the breaking line 19 of the lower surface plate 7 is broken.
Furthermore, the movement of the side plate 6 becomes relatively free by the breakage of the breaking line 19, and the side plates 6 are rotated so that the end portions on the opening side of the side plate 6 come close to each other. The upper surface plate 5 is pushed up in a state where the central portion of the upper surface plate 5 and the central portion of the lower surface plate 7 are pressed by the swelling of the flexible packaging bag 3, and the folding of the upper surface plate 5 is performed by the rotation of each of the side surface plates 6. The position and the crease position of the bottom plate 7 are easily bent. In this way, the box body part is deformed into a tip-open shape in which an opening at one end of the box body part opens according to the swelling of the soft packaging bag 3.
Since the upper surface plate 5 and the lower surface plate 7 are bent at the positions of the creases 17 and 20, the upper surface plate 5 and the lower surface plate 7 are each reduced in drag acting in the direction in which they attempt to suppress the bulge on the entire surface. The box body portion is deformed so as to correspond to the shape of the flexible packaging bag 3 that expands as described above. For this reason, the inside of the flexible packaging bag 3 will be in the state which has a large space, the accommodated item which is heated will flow easily, and will not be in an overheating state. Therefore, a part of the overheated material does not move and does not continue to contact the sheet material on the upper surface portion or the lower surface portion, and pinholes do not occur.

As shown in FIG. 7, the microwave oven wrapping paper box 2 is not deformed completely corresponding to the expanded shape of the flexible packaging bag 3, but the center of the top plate side portion 13 of the top plate 5 and the bottom plate 7. Since the opening is opened so as to be separated from the center of the portion 18 on the top plate side, and the entire box has a first opening shape from the bottom plate 11 to the opening, the steam escape portion of the flexible packaging bag 3 on the opening side is formed. 4 and its periphery are not covered in close contact with the portion 13, but the box body is deformed into a tip-open shape, so that the steam escape portion 4 and the portion 13 located in the center are separated from each other. Does not impair the blowing of steam.
Similarly be remote steam escaping portion 4 also a portion 13 located on either side of the central vapor escape portion 4, in particular on both sides of the steam escape portion 4 around each and bent portion in front Kiori Rikei 17 A wider space is formed close to each other, and is provided so as not to impair the blowing of steam from the both steam escape portions 4.
A portion 18 on the top plate side of the lower surface plate 7 maintains a flat state without being affected by the shape change of the front opening shape of the box body portion by breaking the break line 19, and comes into contact with the turntable as a surface. A portion that has been deformed in the form of an opening becomes a stabilizing plate 21 that prevents rolling, and there is no need for labor such as bending.

An example of the microwave oven packaging body which concerns on this invention is shown, (A) is explanatory drawing which shows an upper surface side, (B) is explanatory drawing which shows a lower surface side. It is explanatory drawing which shows an example of the wrapping paper box for microwave oven heating which concerns on this invention with the unfolded blank. It is explanatory drawing which shows an example of a flexible packaging bag. It is explanatory drawing which shows an example of the packaging body for microwave ovens by the cross section along a box trunk | drum length direction. It is explanatory drawing which shows the state which opened the top | upper surface board. It is explanatory drawing which shows the state which the box trunk | drum part deform | transformed into the shape of a front opening. It is explanatory drawing which shows the state which the box trunk | drum was deformed in the shape of a front opening in the cross section along a box trunk | drum length direction. It is explanatory drawing which shows the opening by the top | upper surface board side of the box trunk | drum which deform | transformed into the front opening shape.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Packaging for microwave oven heating 2 ... Packaging box for heating microwave oven 3 ... Soft packaging bag 4 ... Steam escape part 5 ... Top plate 6 ... Side plate 7 ... Bottom plate 9 ... Box body 10 ... Top plate 13 ... Top Part on the top plate side of the face plate 14 ... Knob 15 ... Cut line 16 ... Break line 17 ... Folded rule 18 ... Part on the top plate side of the bottom plate 19 ... Fracture line 20 ... Folded rule

Claims (1)

When the internal vapor pressure rises to a predetermined pressure or higher due to microwave heating, a flat soft packaging bag is provided in which the vapor escape portion opened by this vapor pressure is located at one side of the bag upper surface. A paper box, wherein a box body portion includes an upper surface plate facing the upper surface of the bag and the lower surface plate facing the bag lower surface of the flexible packaging bag, and a side plate. becomes, one end of Hakodo portion is closed by top faceplate vapor relief portion of the flexible packaging bag corresponds to the side of the side located, the other end of Hakodo portion, flexible packaging bag of the steam escape portion of the side And a microwave-wrapping wrapping paper box that is a flat rectangular parallelepiped shape that is closed by a bottom plate corresponding to the opposite side .
A portion of the upper surface plate covering the vapor escape portion and corresponding to the portion on the one side of the bag upper surface from the vapor escape portion on the upper surface of the bag of the flexible packaging bag , the end is between the upper surface plate and the top plate are incision the tab connected to the circular shaped top plate incision lines to reach the folded portion of the formed, along the folding portion between the upper plate and the top plate continuously in the score line of the knob piece A rupture line is provided, and a crease is provided from the folded part between both sides of the knob piece to the folded part end to the folded part end between the top plate and the bottom plate,
A portion on the top plate side of the bottom plate is provided with a break line that is inclined toward the center side of the bottom plate from each position of both ends of the fold between the top plate and the bottom plate, and A crease is put from the break line end located at the same distance from the top plate side in the break line to the fold end between the bottom plate and the bottom plate,
By turning the top plate that breaks the breaking line continuous with the cut line of the knob from the knob, the top plate side portion of the top plate corresponds to the steam escape portion of the soft packaging bag inside the box. an opening is formed at one end of the Hakodo part, by raising the accompanying side plate to the top plate and the push-up of the upper plate due to swelling of the soft packaging bag during microwave heating, the cross-sectional fracture said break line of the lower surface plate Then, the fold line position of the upper surface plate and the crease position of the lower surface plate are obtained by the breaking of the breaking line on the lower surface plate and the rotation of the side surface plate where the end portions on the opening side of the side surface plate come close to each other preparative by bending is, the configuration and the electronic oven heating wrap box Hakodo portion is shaped deformed earlier opening shape opened the opening of the box body part according bulge of flexible packaging bags,
The soft package housed in the microwave heating wrapping paper box and
A packaging for heating a microwave oven comprising:
A plurality of the steam escape portions of the flexible package are provided side by side in the direction along the longitudinal direction of the one side of the upper surface of the bag, and at least two of the steam escape portions are continuous to the one side of the flexible package. In the vicinity of the steam escape portion, the crease of the top plate of the microwave heating wrapping paper box is located on the side of the side that is continuous with the one side of the flexible package. A package for heating a microwave oven, which is arranged in a corresponding manner .

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