JPH0872862A - Tray-containing packaging case - Google Patents

Abstract

PURPOSE: To improve the retaining performance of a tray, prevent its deformation and improve the rigidity of a case itself by a method wherein the folding parts projecting inwardly of a case are formed at a plurality of places of side boards, and an outwardly projecting flange around the peripheral edge of the opening part of the tray placed in the packaging case is inserted and secured between the upper face of the folding parts and a top panel. CONSTITUTION: A deep bowl-like tray 33 is contained in a case body 1 in an arbitrary step of the fabrication process of the case body 1 and an outwardly projecting flange 34 formed around the peripheral edge of the opening part is inserted and secured between the stepped parts 35 made up by inwardly folding corner webs 19 and others toward the rear face of a top panel 2 for formation into an inverted letter V and the rear face of the top panel 2. Therefore, the packaging case 1 has an improved effect of retaining the tray 33 by the support of a bottom board 3 and side faces 12 and by the additional support of the top panel 2 and the upper faces of folded parts 38. By forming the folded parts 38 using the side faces 12, the rigidity is improved and the possibility of deformation is lessened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging case in which trays containing foods are packaged.

[0002]

2. Description of the Related Art Conventionally, trays formed of aluminum foil, plastic sheets, resin-coated paper stock, etc. are often used as simple containers for selling foods, but aluminum foil trays with relatively strong strength are There is a theory that it causes Alzheimer's dementia, and the tray tends to be replaced with a tray made of a material other than aluminum foil.

However, a tray formed of a material other than the aluminum foil has a small strength and is easily deformed during sales, transportation, heating by a microwave oven, etc., and is gripped during insertion and removal during heating by a microwave oven. Not only is the part easily deformed, but there is also the problem that it is difficult to take it out with fingers due to the heat during heating.

In order to prevent deformation due to collision with other articles when selling or transporting trays containing foods, a means for storing in a normal paper box is also adopted, but simply on the bottom of the box. Since the bottom of the tray abuts and the side plate of the paper box abuts only the outer end of the outward flange of the tray mouth, the tray is not sufficiently held when an impact is applied and the tray is likely to be deformed. The paper box has no usage other than storing the tray.

[0005]

In view of the problems of the above-mentioned conventional tray and its packaging box, the present invention provides a tray having a small strength formed of a material other than aluminum foil, which is not deformed during the sale or transportation. It can be held without causing it, and can be easily inserted and taken out with fingers without being affected by deformation or heat even when heated by a microwave oven. After heating, place the tray set case on the table. It is an object of the present invention to provide a packaging case in which a tray is also possible.

[0006]

In order to solve the above-mentioned problems, the invention of claim 1 includes a bottom plate having an even number of sides and a side facing each side of the bottom plate in the same phase, and the sides of the bottom plate. And a top plate having multiple sides of the side plates facing each other and assembled to form a packaging case.

Folding portions projecting toward the inside of the case are formed at a plurality of positions on the side plate, and outward flanges are provided between the upper surface of the folding parts and the top plate at the periphery of the opening of the tray installed in the packaging case. It is configured to be inserted and placed.

According to the second aspect of the present invention, the easily breakable line surrounding portion having the same shape as the outer peripheral shape of the inner edge of the outward flange of the tray is formed on the bottom plate.

[0009]

According to the first aspect of the present invention, the top plate has the same number of non-opposing sides on each side of the bottom plate in addition to the even-numbered sides of the bottom plate facing each other in the same phase. The side plate portion that is continuous with the side can be used to form a fold portion inside the case, and even if the fold portion is formed, the reduction in case capacity is slightly stopped and the basic shape of the case is not lost.

In addition to holding the tray installed in the case by the bottom plate and the side plate, the outward flange is held between the upper surface of the folded portion and the top plate, so that the tray can be held laterally or vertically. The performance is improved, the deformation of the tray is prevented, and the rigidity of the case itself is improved.

According to the second aspect of the present invention, a part of the side plate of the packaging case is opened by a well-known means, the tray is taken out, and the easily breakable line surrounding portion of the bottom plate is cut along the easily breakable line to open the window hole. When the tray is fitted into the window hole, the outward flange of the tray is received by the bottom plate around the window hole, so that the tray is stably supported by the packaging case.

In this state, the tray can be grasped integrally with the packaging case placed upside down, so that it can be safely inserted into the microwave oven and taken out after heating, or it can be left on the table as it is. Become.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS.
An example of an embodiment in which both inventions are applied to the packaging of a tray in the shape of a square bowl is shown.

The case body 1 of the illustrated packaging case includes a bottom plate 3 having an even number of sides, a square base plate 3 having four sides in the illustrated example, and sides facing each side of the bottom plate 3 in the same phase. The side plates are assembled to face each other with a side that is a multiple of the side of the bottom plate 3, that is, the top plate 2 having eight sides in the example shown in FIG. Is not limited to the illustrated example.

That is, as shown in FIGS. 1, 2, and 6, the first side 4, the second side 5, and the third side of the rectangular bottom plate 3 are shown.
The side 6 and the fourth side 7 are arranged so as to face the first long side 8, the second long side 9, the third long side 10, and the fourth long side 11 of the top plate 2 in the same phase during assembly. There is.

The first long side 8 of the top plate 2 and the first side 4 of the bottom plate 3 are arranged in parallel in the flanks, and the trapezoidal first side plate 1 is formed.
The top side 13 and the bottom side 14 of the second unit 2 are continuously connected.

First short sides 15 on both sides of the first long side 8 of the top plate 2
And the second short side 16 and both sides 17, 1 of the first side plate 12.
The corner webs 19 and 20 that bulge outward from the third and fourth long sides 10 and 11 of the top plate 2 and the third and fourth sides 6 and 7 of the bottom plate 3 are located between the top plate 2 and the top plate 2. 2 and the first side plate 12 are formed in series.

On the second long side 9 symmetrical to the first long side 8 of the top plate 2, the first side plate 12 and the corner webs 19 and 20 are provided.
And a pair of symmetrical second side plates 21 and corner webs 2.
A set of 2 and 23 is formed in series.

On the third long side 10 and the fourth long side 11 of the top plate 2, outer side plates 24 and 25 having a symmetrical shape with each long side as the top side are continuous.

The second side plate 21 is provided on the second side 5 of the bottom plate 3.
The sticking piece 6 stuck to the back side of the
Further, inner plates 27, 28 symmetrical with the outer plates 24, 25 are connected to the fourth side 7.

Each of the corner webs 19, 20, 22,
At 23, outer folding lines 29, 30, 31, 32 are formed on the extension lines of the first and second long sides 8, 9 of the top plate 2, and the top plate 2, the bottom plate 3, the first and the first plates are formed. Inner folding lines are formed on each side portion of the two side plates 12 and 21.

The corner webs 19, 20, 22, 2
3 is folded to the back side of the top plate 2 in an inverted V shape, the inner plates 27 and 28 are attached to the back faces of the outer plates 24 and 25, and the attachment pieces 26 are attached to the back face of the second side plate 21. To form the case body 1 shown in FIGS. 1 and 2.

Inside the case body 1, a tray 33 in the shape of a deep bowl shown in FIG. 3 is installed at any stage of the process of assembling the case body 1, and an outward flange formed on the outer peripheral edge of the mouth. As shown in FIGS. 1 and 4, the stepped portion 3 is formed by folding the corner webs 19, 20, 22, 23 to the back side of the top plate 2 in an inverted V shape.
5 and the back surface of the top plate 2 are inserted, placed and locked.

Each corner web 19, 20, 22, 23
The inner plates 27, 28 have edges 36, 37 when they are folded to the back side of the top plate 2 in an inverted V shape, as shown in FIG.
The bulging dimension is selected so as to be close to the back surface of the and to close the inverted V-shaped folded portion 38.

The outer plate 24 has an easy breaking line 3 for opening.
9 and 40 are formed, and the sticking line 41 between the outer side plate 24 and the inner side plate 27 is formed below the easily breakable lines 39 and 40.

1 and 6, reference numeral 42 is a hooking piece provided on the outer side plate 24, and reference numeral 43 is a hooking hole formed on the inner side plate 27. After the cut piece 44 is cut and opened, the hook claw piece 42
The outer plate 24 is locked in the closed position by inserting the hook into the hook hole 43.

The bottom plate 3 is formed with a surrounding portion 46 surrounded by a breakable line 45. The shape and dimensions of the surrounding portion 46 are the same as those of the outward flange 34 of the tray 33 shown in FIGS. It has the same shape as the outer peripheral shape of the inner edge 47.

Reference numeral 48 in FIGS. 1 and 6 is a gripping portion for cutting off the surrounding portion 46 and is surrounded by an easily breakable line 49.

The cut-out piece 44 of the outer side plate 24 is cut off, the outer side plate 24 and the inner side plate 27 are opened, the tray 33 is taken out, and then the holding portion 48 is cut and raised, and surrounded by the easy break line 45. When the surrounding portion 46 is cut off and the tray 33 is inserted into the formed window hole, the outward flange 34 of the tray 33 is supported as shown in FIG. 5 by the remaining portion of the bottom plate 3 which is the peripheral edge of the window hole. It

In the state shown in FIG. 5, insertion and placement in a microwave oven and removal after heating can be performed reliably and safely without being affected by heat by holding the case body 1 together with the tray 33. It can be placed on the table as it is in a stable posture.

The case body 1 and the tray 33 may be made of resin-coated paper material or a heat-resistant plastic sheet, and the case body 1 may have any shape such as a square, a rectangle, a regular hexagon, and a long hexagon. The shape of can be selected.

[0032]

According to the first aspect of the present invention, the outward flange of the tray installed in the packaging case is held between the top plate and the upper surface of the folded portion that is folded inside the case. The tray is supported by the bottom plate and the side plates in addition to the support by the top plate and the upper surface of the folded portion, so that the tray holding performance is improved.

Further, since the folded portion can be formed by utilizing the side plate portion of the side of the top plate which is continuous with the side of the bottom plate which is not opposed to the side of the bottom plate, the reduction of the case capacity due to the formation of the folded portion can be slightly performed. There is an effect that it can be stopped and the basic form of the case is not lost, and a vertical display can be made in a horizontal state at the time of sale.

The packaging case has an effect that the rigidity is improved by the formation of the folded portion using the side plate portion, the risk of deformation is small, and therefore the deformation of the tray can be prevented.

According to the invention of claim 2, by the peripheral edge of the window hole portion formed by cutting off the easily breakable line surrounding portion of the bottom plate,
The tray fitted in the window hole receives the outward flange and is in a stable posture, so that the tray can be inserted into and removed from the microwave oven safely and reliably, and can be stably placed on the table as it is. It also has an effect.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of an example of an embodiment.

2 is a perspective view of the bottom of what is shown in FIG. 1. FIG.

FIG. 3 is a perspective view of an example of a tray to be installed.

FIG. 4 is a schematic cross-sectional view taken along the line AA in FIG.

FIG. 5 is a perspective view showing a state in which the tray is fitted in the window hole portion of the bottom plate.

FIG. 6 is a developed view of the blank shown in FIG. 1.

[Explanation of symbols] 2 Top plate 3 Bottom plate 4, 5, 6, 7 Even side 8, 9, 10, 11 Opposing side 12, 21, 24, 25, 27, 28 Side plate 33 Tray 34 Outward flange 38 Folding part 46 Easy break line surrounding part

Claims (2)

[Claims] 1. A bottom plate having an even number of sides, and a top plate including sides facing each side of the bottom plate in the same phase and having a multiple of the sides of the bottom plate are assembled to face each other by side plates. Folding parts projecting inward of the case are formed at a plurality of positions on the side plate of the packaging case, and between the upper surface of the folding part and the top plate, outside the periphery of the opening of the tray installed in the packaging case. A packaging case that contains a tray in which the orientation flange is inserted and placed. 2. The packaging case in which the tray is internally provided according to claim 1, wherein the bottom plate is formed with an easily breakable line surrounding portion having the same outer peripheral shape as the inner edge of the outward flange of the tray.