JPH04135451U - Easy-to-open microwave container - Google Patents

Abstract

(57) [Summary] (with amendments) [Structure] The present invention is a microwave oven container in which a lid material 20 is heat-sealed to a shape-retaining tray-shaped container 10 having two accommodating parts. The tray-shaped container 10 is characterized in that a break line 14 and a folding curve 15 are provided at the boundary between the two accommodating parts, and a heating element is provided on the lid 20 located at the upper part of the boundary 13 of the tray-shaped container 10. 22. This is an easy-to-open microwave container characterized by being provided with a container. [Effect] The easy-to-open microwave container of the present invention can be opened with one touch by simply lifting up both ends of the microwave container after heating and folding it into a V shape. The contents can be enjoyed deliciously without any effort at all, and a part of the lid material of the microwave oven container is opened during heating to automatically release steam.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention allows you to easily fold the microwave container into a V-shape. This relates to a microwave oven container that can be opened in seconds.

0002

[Conventional technology]

Conventionally, easy-to-open sealed packaging containers consist of a shape-retaining tray-shaped container and a lid. Concerning containers, the lid material has a convex part with a break line (see Utility Model Application Publication No. 62-11763) ), a tray-shaped container with a break line on the lid material at the boundary between the two storage parts. (Refer to Utility Model Application Publication No. 63-59859), at the boundary between the two storage parts of the tray-shaped container. Those whose lid material has a convex part with a break line (see Utility Model Application Publication No. 64-2776), etc. Both have a break line in the lid material, making it difficult to pull the sealed packaging container upside down. It could be folded back into a V shape and opened with a single touch.

0003

[Problem that the idea aims to solve]

Shape-retaining property that accommodates side foods such as cooked curry soup, stew, and miso soup A tray-shaped container with a lid heat-sealed for microwave oven use. There are requests for microwave containers that can be opened with one touch after being heated in a microwave. It's increasing. In other words, this tray-shaped container is heat-sealed with a lid material for microwave oven use. Concerning containers, they are excellent in terms of workability for storing cooked side foods and sealing preservation. Nono, it was not easy to open after heating it in the microwave, so I tried to open the heat-sealed lid with my fingers. You may get burned while removing the lid material, or you may stain the dining table while cutting the lid material with scissors or a knife. This was due to problems such as the container being damaged by steam during heating in the microwave. be.

0004

[Means to solve the problem]

As shown in Figs. 1 and 2, the present invention has a shape-retaining structure with two accommodating parts (11, 12). A microwave oven container consisting of a lid (20) heat-sealed to a tray-shaped container (10). There is a break line (14) and a folding curve (15) at the boundary part (13) of the two storage parts (11, 12) of the tray-shaped container. By providing a Just fold it into a V shape (see Figure 3) and you can open it with one touch. In addition, a heating element (22) is attached to the lid (20) located at the upper part of the boundary part (13) of the tray-shaped container. Due to the provision of this heating element (22), during heating in a microwave oven, One part of the lid material (20) is perforated so that steam can be released automatically. It is a container for microwave oven.

[0005] Regarding the shape-retaining tray-shaped container (10) of the present invention having two storage parts (11, 12) It has a heat resistance of about 100℃, which can withstand heating in a household microwave oven, and It is a material that has insulation properties to the extent that it does not get hot when folded by hand after heating. , if the material is not laminated with a metal layer such as aluminum foil that reflects microwaves, Although there are restrictions on the shape of the boundary part (13) described below, conventional foamed polystyrene Use materials such as polypropylene containing talc, laminated polyester paper, etc. It is molded into a shape such as a tray that is suitable for the amount and properties of the contents (30). It can be molded by air pressure molding.

[0006] About a microwave oven container in which a lid material (20) is heat-sealed to a tray-shaped container (10) of the present invention. For example, materials that are not laminated with aluminum foil, etc., which have heat resistance of about 100 degrees Celsius, are used. If it is a thermoplastic resin material that can be heat-sealed to the tray-shaped container (10), conventional Single-layer or laminated resins such as polyethylene, polypropylene, and polyester from Using the material as a lid material (20), it can be used to store and fill cooked side foods while also forming a tray. It can be heat-sealed to the heat-sealing part (21) of the container (10) by a normal method.

[0007] Regarding the shape of the boundary part (13) of the two storage parts (11, 12) of the tray-shaped container of the present invention, The cross-sectional shape of the boundary part (13) (31, triangular in Fig. 2) and the fracture surface shape (32, Fig. 2) There are no restrictions on the triangular shape, and there is no need to open the package (damage to the container) before heating it in the microwave. If it is easy to open after heating in the microwave, it can be triangular, square or square. Even if it is pentagonal or semicircular, the cross-sectional shape (31) of this boundary part (13) and the fractured surface shape (3 2) is optional. In other words, the contents stored in the two storage parts (11, 12) of the tray-shaped container The container (30) does not necessarily need to be separated into two parts, and this boundary part (1 Regarding the cross-sectional shape (31) in 3), it is a tray-shaped container that mainly has two storage parts (11, 12). (10) Its shape and dimensions can be determined to suit the design and exhibition effect. I can do it.

[0008] In addition, regarding the fracture surface shape (32) of the boundary part (13) of the tray-shaped container, After heating, it was folded into a V-shape and opened with one touch. It forms the opening spout (32) of the tray-shaped container, and The amount and viscosity of the contents (30) contained in the parts (11, 12) and the size of the solids contained, etc. Its shape and area can be determined to suit. In this case, the boundary The area of the fractured surface shape (32) at minute (13) is the cross section of the storage part (12) of the tray-shaped container shown in Figure 2. Approximately 1/4 to 1/10 of the area of shape (33) is appropriate, and the fracture surface of boundary part (13) If the area of shape (32) is larger than 1/4, it will be difficult to open the microwave container of the present invention. Also, the area of the fractured surface shape (32) of the boundary part (13) is less than 1/10. If it is too small, there is a risk of it being opened (damage to the container) before being heated in the microwave, so be careful. is necessary.

[0009] Regarding the break line (14) provided at the boundary part (13) of the tray-shaped container of the present invention, This device is designed to break and open the proposed microwave oven container, and is not compatible with the above-mentioned method. At the same time as the injection molding or pressure forming of the tray-shaped container (10), a half-cutting edge is provided on the mold. By conventional methods, or by methods such as laser half-cutting after forming the tray-shaped container (10). , the concave end on the outer surface side (lower side in the A-A cross-sectional view of Figure 2) of the boundary part (13) of the tray-shaped container A half cut line can be provided in the section. In addition, the boundary part of the tray-shaped container (1 Regarding the fold line (15) provided in 3), the microwave oven container of the present invention is folded and opened. It is provided for sealing, and the tray-shaped A half cut line or perforation line is provided at the heat-sealed part (21) between the container boundary part (13) and the lid material (20). I can do it.

[0010] Further, regarding the provision of the heating element (22) on the lid member (20) located at the upper part of the boundary portion (13) of the tray-shaped container of the present invention, the present invention is disclosed in Utility Model No. 62, filed by the applicant of the present application. This is an application of the idea in Publication No. 177674, which uses a heating element (22, e.g. PET 12μm/aluminum vapor deposition 50Å/paper 35g/m ² ) with an adhesive on the order of 5 x 5mm◇ to create a tray. It can be attached and provided on the outer surface of the lid (20) before or after the heat sealing of the shaped container (10) and the lid (20).

[0011] In this case, the heating element (22) is placed on the lid located at the top of the boundary portion (13) of the tray-shaped container. By providing the heating element (20) on the material (20), the heating element (22) can be heated during heating in a microwave oven. The lid material (20) made of thermoplastic resin material is softened and the contents (30) are placed in the microwave oven. Due to the increase in the internal pressure of the container, a portion of the lid material (20) opens, causing an increase in the internal pressure of the container ( To prevent damage to the tray-shaped container (10) and lid material (20) due to generation of steam due to heating Also, since there is little content (30) at the bottom of the opening, the content (30) may be blown out. It does not overflow and can automatically release the steam inside the microwave container. be. In addition, if the heating element (22) of the present invention is not installed on the lid material (20), it should not be heated in a microwave oven. Before heating, peel off a part of the heat-sealed part (21) between the tray-shaped container (10) and the lid material (20) with your fingers. It is necessary to keep the

0012

【Example】

Figures 1 and 2 show a flat, easy-to-open microwave container in an embodiment of the present invention. They are a top view and a sectional view of important parts. That is, expanded polystyrene sheet (thickness 2.0mm , foaming rate of 40%) is pressure-molded and has two storage parts (11,12) with shape retention properties. Place curry soup in a tray-shaped container (10) with a solid size of 0.8 x 0.8 x 0.8 cm or less ( 30, 2 servings), biaxially oriented polypropylene film (thickness 0.1 mm, outside ) and unstretched polypropylene film (thickness 0.1 mm, inside). The shape of the heat-sealed microwave oven container of this example is shown.

[0013] In this case, a half-cut (half-cut rate: 50%) break line (14) is formed on the outer concave end of the boundary portion (13) of the tray-shaped container, and a boundary portion (13) of the tray-shaped container A perforation-like folding line (15) is provided in the heat-sealed portion (21) between the lid material (20) and the lid material (20), and the lid material located above the boundary portion (13) of the tray-shaped container. A 0.5 x 0.5 cm◇ heating element (22, PET 12μm/aluminum vapor deposition 50Å/paper 35g/m ² ) with adhesive is provided on the outer surface of the material (20). In this example, the area of the fractured surface shape (32) of the boundary portion is approximately 3 cm ² (1.5 cm x 4.0 cm/2), and the area of the cross-sectional shape (33) of the storage portion is approximately 27 cm. ² (10+8 cm/2×3 cm).

[0014] Next, place the microwaveable container containing the curry soup (30) of this example, which has been sufficiently refrigerated. When heated in a household 500W microwave oven, the heating element (22) was heated in about 180 seconds. The lid material (20) on the provided part will soften and the microwaveable container containing the curry soup (30) will open. Due to the increase in the internal pressure of the container, a portion of the lid material (20) opens and the curry soup is finished in about 240 seconds. The curry soup (30) boiled and released a lot of steam, but the curry soup inside was overflowing. It never happened.

FIG. 3 is a perspective view showing a method for opening an easy-to-open microwave container according to an embodiment of the present invention. In other words, by simply lifting both ends of the microwave container containing the heated curry soup (30) and folding it into a V-shape, the shape retention of the tray-shaped container (10) and the perforation-like folding can be improved. Using the principle of leverage centered on the curve (15), the half-cut break line (14) can be opened with a single touch and the contents, curry soup (30), can be poured into warm rice. Indicates the condition. In the case of this example, warm rice is placed on two plates, and 360 ml of the heated and boiled curry soup (30) is poured into the curry soup (30) through two opening spouts (32) of about 3 cm ² for about 10 seconds. By dividing it into two plates and pouring it over, I was able to enjoy the delicious curry and rice without any effort at all.

[0016]

[Effect of the idea]

As shown in the examples above, in the easy-to-open microwave container of the present invention, Because a break line and a folding curve are provided at the boundary between the two accommodating parts of the tray-shaped container, After heating, lift both ends of the microwave container and fold it into a V shape. You can open the package with one touch by simply bending it, and you can easily access the contents without any effort. It is a product that allows you to enjoy food deliciously, and you peeled off the lid material with your finger after heating it, resulting in burns. It is an electronic mailbox that is easy to open and there is no risk of cutting the lid material with scissors or a knife and making a mess on the dining table. It is a container for cleaning.

[0017] Furthermore, as shown in the examples, the easy-to-open microwave container of the present invention has the following features: Because a heating element is installed in the lid located at the top of the border of the tray-shaped container, heating A part of the lid material of the microwave oven container inside may become open and the contents may not spill out. It is a device that can automatically release steam, so there is no risk of damage to the container due to steam during heating. It is a safe container for microwave ovens.

[0018] Furthermore, as shown in the examples, in the easy-to-open microwave container of the present invention, The shape and area of the fracture surface (opening spout) at the boundary of the tray-shaped container should be adjusted appropriately. Convenient electronic device that allows you to adjust the time to pour out the contents after opening It is a microwave container.

[Brief explanation of drawings]

FIG. 1 is a plan view of an easy-to-open microwave oven container according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of an easy-to-open microwave oven container according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a method of opening an easy-to-open microwave container according to an embodiment of the present invention.

[Explanation of symbols]

10...Tray-shaped container 11, 12...Accommodating part for tray-shaped container 13... Boundary part of tray-shaped container 14...Break line of boundary part 15...Folding curve of heat-sealed part 20...Lid material 21... Heat sealing part 22...Heating element 30 …Contents, curry soup 31...Cross-sectional shape of the boundary part 32... Fractured surface shape of boundary part, opening spout 33...Cross-sectional shape of the housing part

Claims (2)

[Scope of utility model registration request] Claim 1: A microwave oven container comprising a shape-retaining tray-shaped container having two accommodating parts and a lid material heat-sealed, the container comprising:
An easy-to-open microwave oven container characterized by providing a break line and a folding curve at the boundary between two storage parts of the tray-shaped container. 2. The easy-to-open microwave oven container according to claim 1, wherein a heating element is provided on the lid located at the upper part of the boundary portion of the tray-shaped container.