JPH0995362A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily dissipate stream in a container during heating and heat it in a short time without troubles. SOLUTION: A recessed part is formed on a sheet face constituting the top face of a cover body 11 put on a plate-form container body containing food and a steam vent hole 16 is bored at the recessed part and an indication label 17 is stuck astride on the steam vent hole 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container capable of removing steam generated when a packaged food is heated.

[0002]

2. Description of the Related Art In recent years, packed foods such as bento, rice (rice) and prepared foods have been sold at supermarkets and convenience stores, and are widely used in general. These bento,
Foods such as rice and side dishes are hermetically packed in a packaging container, which is heated in a microwave oven so that it can be warmed and easily eaten.

[0003]

As described above, foods packed with conventional foods such as bento, rice, and prepared foods generate steam when heated in a microwave oven when eating these foods. Then, when the lid is opened, water vapor is ejected.

Therefore, in order to escape steam, the fitting of the lid to the container is loosened to improve ventilation. However, in this case, the lid may come off during handling or carrying to cause liquid leakage. Therefore, the entire outer circumference of the container is covered with the film. Further, if the lid is tightly fitted, there is a problem that the lid will come off due to steam in the container during heating.

The present invention has been made to solve these problems, and provides a packaging container which can easily release the vapor in the container during heating and can be warmed in a short time without any trouble. The purpose is to do.

[0006]

A packaging container according to the present invention is a lid body attached to a dish-shaped container body for containing foods, the lid body having a recessed portion on a sheet surface constituting a top surface. It is characterized in that it is formed, a vapor vent hole is bored in this hollow portion, and that a display label is attached across the vapor vent hole.

[0007] A lid body for accommodating a dish-shaped container body for accommodating foods, wherein the lid body has a plurality of vapor vent holes formed in a sheet surface constituting a top surface, and the vapor vent holes It is characterized in that a display label with a notch streak, which is coded as a steam vent hole, is attached to the upper surface.

Further, the lid body is attached to a dish-shaped container main body for containing food, and the lid body has steam vent holes formed in a sheet surface constituting a top surface, and the steam vent holes are straddled. Thus, the display label is provided, and one end side portion of the display label is attached.

Since the packaging container of the present invention is provided with a steam vent hole for releasing steam when it is put in a microwave oven for cooking and heated as it is, steam generated in the heating process is generated by these steams. Efficiently escapes from the vent hole. Therefore, the packaging container does not swell due to the vapor pressure inside, and heating can be performed with confidence until the packaging container is heated to an appropriate temperature.

Further, since the display label is adhered to the upper surface of the steam vent hole, it is covered with the steam vent hole, so that the hole portion is hidden and the display property is good. Furthermore, the heating steam is discharged to the outside through the hole due to the gap formed between the display label and the steam vent hole. Further, since the display label is attached, it is possible to prevent foreign matter from entering through the vapor vent hole.

Further, since a plurality of steam vent holes are formed, a part of the display label can be lifted by the vapor pressure through the steam vent holes and the steam can be discharged to the outside. The part covers the steam vent hole to prevent dust from falling from the steam vent hole.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. 1 is a plan view of a lid showing an embodiment of the packaging container of the invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a plate used for a lid showing an embodiment of the packaging container of the invention. FIG. 4 is a plan view showing a shaped container, FIG. 4 is a sectional view taken along line BB in FIG. 2, FIG. 5 is a sectional view in which the lid of the packaging container of the present invention is attached to a dish-shaped container, and FIG. 6 is a display label and a vapor vent hole. FIG. 7 is a plan view of a lid showing another embodiment of the packaging container of the present invention, FIG. 8 is an explanatory view of a display label, and FIG. 9 is a sectional view taken along line CC of FIG. is there.

First, an embodiment of the dish-shaped container used in the present invention will be described. The dish-shaped container shown in FIGS. 3 to 4 is an example of an inner fitting type, and reference numeral 1 is a dish-shaped container body that is made of heat-resistant plastic and forms a space for storing food, and a bottom portion 2 1 shows a basin-shaped container composed of and a rising edge 3 raised from the bottom 2. A rectangular protrusion 4 that protrudes inward is provided at the center of the bottom 2. Further, a step portion 5 having a horizontal width and a narrow width is formed over the entire circumference on an upper portion of the rising edge portion 3 of the bowl-shaped container body 1. Further, the upper end of the step portion 5 is bent upward to form an inner wall surface 6, and further is horizontally bent to form an upper edge portion 7. An engagement portion 14 of a lid 11 described later is fitted on the upper edge portion 7. This lid 11
As shown in FIGS. 11 to 13, the fitting of the
Inner-fitting type lid (FIG. 11), Inner-outer type lid (FIG. 1)
2) and the outer fitting type lid body (FIG. 13) can be used.

The shape of the deep dish container 1 may be disc-shaped, box-shaped or the like as long as the step portion 5 is formed above the rising edge portion 3. Food items such as bento, rice and prepared foods are stored in the deep dish container 1.

As shown in FIGS. 1 and 2, the lid 11 of the present invention has a top surface 12 and a step 13, and an engaging portion 14 which is fitted inside the upper portion of the inner wall surface 6 is provided around the lid 12. is there. Engaging part 1
A notch groove 15 is formed inside the groove 4 toward the center, and a steam vent hole 16 is provided in the notch groove 15. A display label 17 is attached to the top surface 12 across the vapor vent hole 16. The display label 1 is attached to the top surface 12 of the display label 17.
7 may be on both ends or one side, and the sticking may be a release paper function or a heat-sealing. Since the display label 17 is attached to the upper surface of the vapor vent hole 16 in this manner, a void portion 18 is formed between the display label 17 and the vapor vent hole 16. The heated steam is naturally discharged from the voids 18. Further, the display label 17 prevents foreign matter from entering the vapor vent hole 16. In the figure, 19 is a hem.

As described above, according to the present invention, the lid 11 is fitted to the dish-shaped container body 1, and the display label 17 is stuck to the top surface 12 around the vapor vent hole 16.

In the packaging container of the embodiment configured as described above, since the gap 18 is formed between the display label 17 and the vapor vent hole 16 with a proper gap, that is, the vertical gap, the vapor is formed. The P is naturally discharged through the void portion 18, and the vapor P escapes to the outside extremely efficiently. Therefore, the vapor pressure inside the container body 1 does not cause abnormal expansion or breakage, and induction heating can be performed with confidence until the food is heated to an appropriate temperature.

Further, a projecting portion 4 is formed on the bottom portion 2 of the bowl-shaped container body 1, and accordingly, the central portion of the food is formed thinner than the peripheral portion and a space is formed in the central portion of the bottom surface. Therefore, the heating is performed uniformly, and the heating is performed in a shorter time.

7 to 9 show another embodiment of the present invention. The lid 11 of this embodiment is provided with a plurality of small steam vent holes 16 on the sheet surface constituting the top surface, and the upper surface of the steam vent hole 16 is provided with a cut line 20 which is referred to as the steam vent hole 16. The display label 17 is attached. Since a plurality of small steam vent holes 16 are provided, the display label 1 passes through the steam vent holes 16 due to steam pressure caused by heating.
Part of 7 is lifted and steam is released to the outside. In a normal state, the cut line 20 of the display label 17 is closed, and the fall of dust and the like from the vapor vent hole 16 is prevented. The display label 17 may be attached to both end portions 21 and 21, or may be attached to the periphery of the display label 17, and in particular, a release paper function or a heat-sealed one is preferable.

FIG. 10 shows another embodiment of the present invention. In the lid 11 of this embodiment, a vapor vent hole 16 is formed in the sheet surface constituting the top surface, and a display label 17 is arranged on the upper surface of the vapor vent hole 16, and one end side 2 of the display label 17 is provided.
1 is attached. One end side 21 of the display label 17
, The release side of the display label 17 is lifted by the steam pressure due to heating to pass through the steam vent hole 16 and discharge the steam to the outside. In a normal state, the vapor vent hole 16 is closed by the display label 17 to prevent dust and the like from falling from the vapor vent hole 16. The display label 17 may be attached to the one end side portion 21, and particularly, one having a release paper function or heat fusion is preferable.

11 to 13 are enlarged explanatory views showing a situation in which the lid 11 is attached to the dish-shaped container body 1 according to one embodiment of the present invention.

FIG. 11 shows an example of the inner fitting type lid body. The lid body 11 is integrally formed of thermoplastic plastic, and the engaging portion 14 provided around the top surface 12 is V-shaped.
The outer wall side portion of the V-shaped groove is formed so as to form a flat collar portion. Then, the flange portion is fitted so as to be in contact with the inner peripheral surface 6 of the dish-shaped container body 1, and is fitted inside. Next, FIG. 12 shows an outer fitting type lid, wherein the engaging portion 14 bends the outer wall side portion of the V-shaped groove in the soft direction to form a flat portion corresponding to the upper edge portion 7, This flat portion is the upper edge 7 of the container body 1.
It is formed by bending downward along the outer side of the. The engagement portion 14 is fitted to the upper edge portion 7 and fitted to the container body 3. FIG. 13 shows an example of a fitting portion of an outer fitting type lid, and the engaging portion 14 is formed by bending a flat outer peripheral edge portion corresponding to the upper edge portion 7 downward to form a locking edge. ing. The engagement portion 14 is attached to the upper edge portion 7 and fitted into the container body.

[0023]

EFFECT OF THE INVENTION In the packaging container of the present invention, a steam vent hole is provided to release steam when it is placed in a microwave oven for cooking and heated as it is. Efficiently escapes from the steam vent hole of. Therefore, the packaging container does not swell due to the vapor pressure inside, and heating can be performed with confidence until the packaging container is heated to an appropriate temperature.

Further, since the display label is attached to the upper surface of the steam vent hole, the hole part is covered by the steam vent hole and the hole is hidden. Therefore, the display property is good and the gap between the display label and the steam vent hole is good. The heated steam is discharged to the outside due to the voids formed in. Further, the display label can prevent foreign matter from entering through the steam vent hole.

Further, since the display label with the notch is attached to the upper surface of the steam vent hole, the steam passes through the steam vent hole and releases the notch of the label to lift the heated steam to the outside. Can be released to. In a normal state, the notch of the label covers the vapor vent hole to prevent dust and the like from falling from the vapor vent hole.

Further, since the display label having one end attached to the upper surface of the steam vent hole is disposed, the release side of the display label is lifted by the steam pressure through the steam vent hole to release the steam to the outside. In a normal state, the notch of the label covers the vapor vent hole to prevent dust and the like from falling from the vapor vent hole.

[Brief description of drawings]

FIG. 1 is a plan view of a lid showing an embodiment of a packaging container of the invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a plan view of a container body used for a lid body showing an embodiment of the packaging container of the invention.

FIG. 4 is a sectional view taken along line BB in FIG.

FIG. 5 is a cross-sectional view in which the lid of the packaging container of the present invention is attached to the container body.

FIG. 6 is an enlarged view showing the relationship between the display label and the vapor vent hole.

FIG. 7 is a plan view of a lid body showing another embodiment of the packaging container of the present invention.

FIG. 8 is an explanatory diagram of another example of the display label.

9 is a sectional view taken along line CC of FIG.

FIG. 10 is a plan view of a lid body showing another embodiment of the packaging container of the present invention.

FIG. 11 is an enlarged explanatory view of a state in which a lid (internal fitting type) is attached to the dish-shaped container body of the present invention.

FIG. 12 is a lid (internal and external fitting type) for the dish-shaped container body of the present invention.
Enlarged explanatory view of the state with the attached

FIG. 13 is an enlarged explanatory view of a state in which a lid (outer fitting type) is attached to the dish-shaped container body of the present invention.

[Explanation of symbols]

 1 ……… Container main body 3 ……… Rising edge 6 ……… Inner wall surface 7 ……… Upper edge 12 ……… Top surface 13 ……… Step 14 ……… Engagement part 15 ……… Incision groove 16 ………… Steam vent hole 17 ………… Display label

Claims (3)

[Claims] 1. A lid body to be attached to a dish-shaped container body for storing food, wherein the lid body forms a recess on a sheet surface constituting a top surface, and a steam vent hole is formed in the recess. A packaging container characterized by being provided with a display label while straddling the vapor vent hole. 2. A lid body attached to a dish-shaped container main body for storing food, wherein the lid body has a plurality of vapor vent holes formed in a sheet surface constituting a top surface, and the vapor vent holes A packaging container characterized in that a display label having a score line is disposed on the upper surface, and both end portions of the display label are attached. 3. A lid body attached to a dish-shaped container main body for storing food, wherein the lid body has a steam vent hole formed in a sheet surface constituting a top surface and straddles the vapor vent hole. A packaging container characterized in that a display label is provided, and one end side portion of the display label is attached.