JP2003040300A - Tightly closed container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To develop a tightly closed container showing an environment-friendly property and suitable for preservation, refrigeration and heating by improving a tightly closed container having a rigid main body portion at the central portion of the cover and a soft circumferential margin portion with a circumferential groove around the cover. SOLUTION: A tightly closed container is a resin-made tightly closed container in which a cover 2 is air-tightly engaged with an upper edge 1' of a container main body wherein the container main body 1 is formed of polycarbonate(PC), the rigid main body 3 forming the central portion of the cover 2 is formed of a transparent polycarbonate(PC) and a soft circumferential margin portion 4 having a circumferential groove 8 to be inserted into an upper margin of the container main body and being integrated into the circumferential margin of the rigid main body portion is formed of polypropylene-ethylene- propylene rubber-based elastomer (TPO).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin-made hermetically sealed container in which a lid is airtightly fitted to the upper edge of a container body, and has a central portion of the lid and a peripheral portion having a circumferential groove. It is characterized by being integrally molded using different resins so that it is particularly suitable for heating and using a sealed container and has excellent durability.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Laid-Open No. 11-255252 and Japanese Patent Laid-Open No. 11-26 have been disclosed in this type of sealed container.
As in Japanese Patent No. 3358, there is one in which a lid of a hermetically sealed container is configured by a hard main body portion forming a central portion and a soft peripheral edge portion integrally formed on a peripheral edge of the hard main body portion with a peripheral groove. .

[0003]

The closed container of this type is
At home, it is mainly used as a container for storing food, but the material that contains environmental hormones is used, the sealability is poor, and the contained food is difficult to see from the outside of the container. , When the stored food is heated in a microwave oven, it needs to be transferred to a heat-resistant container, stains are difficult to remove, or the material of the container may not be suitable for the storage of certain foods. There were many things. From the above, the problem to be solved by the present invention is to improve the conventional sealed container having various drawbacks as described above, which is environmentally friendly, more suitable for food storage, and has heat resistance. It is to develop a sealed container equipped with.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a resin-made hermetic container in which a lid is airtightly fitted to the upper edge of the container body. It is made of polycarbonate (PC), and the hard main body that forms the central part of the lid is made of transparent polycarbonate (P).
C), and a soft peripheral portion integrated with the peripheral portion of the hard main body with a peripheral groove fitted to the upper edge of the container main body is formed of polypropylene-ethylene / propylene rubber-based elastomer (TPO). The present invention provides a sealed container characterized by the above.

As described above, the main body of the container is made of polycarbonate (PC), the hard main body is made of transparent polycarbonate (PC) at the central portion of the lid, and the peripheral groove is provided to be integrated with the peripheral edge of the hard main body. The sealed container of the present invention in which the soft peripheral portion to be formed is formed of polypropylene-ethylene / propylene rubber-based elastomer (TPO) is based on the characteristics of the material of each part, and does not contain an environmental hormone in the material. It is easy to operate and has excellent sealing performance, the contents can be seen from the outside through the transparent part of the lid, and it has excellent cold resistance and heat resistance, so it is suitable for frozen storage and heating, so it is a container No need to transfer the product, dirt can be easily removed, the type of food to be stored can be selected, and transparency, heat resistance and strength are increased compared to previous products, making it more durable Made to those.

An opening is provided at an appropriate position of the hard main body of the lid, and a stopper for opening and closing the opening is integrally extended from the soft peripheral edge of the lid, and the stopper is opened when the sealed container is used for heating. According to the invention of claim 2, which is used by removing and opening the opening, it is relatively easy to remove without removing the lid that tightly fits the peripheral groove to the upper edge of the container body. By removing, you can cook safely.

Further, an opening is provided at an appropriate position of the hard main body of the lid, and the opening is integrally extended from the soft peripheral edge of the lid or is closed by a separate plug body and sealed. According to the invention of claim 3, wherein the stopper is automatically removed and opened by the vapor pressure generated in the container when the container is heated, the container is tightly sealed by fitting the lid through the circumferential groove. When heating the container as it is, before the vapor pressure generated inside rises abnormally, the internal pressure causes the stopper to be disengaged from the opening to reduce the pressure in the container. Therefore, it is possible to safely use the sealed container without heating.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the embodiment, and FIG. 2 is a vertical side view.

In the figure, 1 is a container body whose overall shape is a rectangle close to a square, 2 is a lid fitted on the top of the container body 1, and 3 is a hard body forming the central portion of the lid 2. The parts 4 are integrally molded around the hard main body 3 via the dividing line L to form the peripheral part of the lid 2, and the soft peripheral part 5 is an opening provided at one corner of the hard main part 3. 6 is
It is a plug body that is integrally extended through a thin hinge portion 7 provided at one corner of the soft peripheral portion 4 to open and close the opening 5 from above.

As a material, the container main body 1 is formed of polycarbonate (PC), and the hard main body 3 forming the central portion of the lid 2 is formed of transparent polycarbonate (PC), and the upper edge 1 of the container main body 1 is formed. The soft peripheral portion which is integrated around the hard main body portion 1 with the peripheral groove 8 fitted to the ′ is formed of polypropylene-ethylene / propylene rubber elastomer (TPO).

The container body 1 formed of (PC) and (TPO) and the hard body portion 3 of the lid 2 have appropriate rigidity as a sealed container, and have increased transparency, heat resistance and strength. Equipped Moreover, since the material does not contain chemical substances suspected to be environmental hormones, it can be safely used for heating food for storage. The soft peripheral portion 4 formed of (TPO) has flexibility and adhesiveness required for attachment / detachment of the circumferential groove 8 and the upper edge 1 ′ of the container body 1, so that airtightness of the container is maintained and food can be easily taken in and out. It can be preserved without changing the taste.

The container body 1 and the hard body portion 3 made of transparent (PC) are particularly excellent in transparency. Therefore, the inside of the container in the refrigerator can be seen through, and it is not necessary to take out the container for confirmation. This sealed container formed of the above materials has excellent resistance to cold and heat, and can be frozen and thawed with the lid 2 left open, and the cap 6 can be easily removed to cook each container.

Further, this hermetically sealed container is easy to remove dirt, is easy to wash every corner, is highly resistant to chemicals, and has durability regardless of the type of food to be stored, so that it can be used without anxiety.

As shown in the figure, in the case where the plug body 6 is directly connected to the lid 2 through the thin hinge portion 7 provided at one corner of the soft peripheral edge portion 4, the plug body 6 may be lost even when not in use. However, it is convenient when opening and closing the opening 5, but when the present invention is carried out, the plug 6 may be provided separately. In addition,
The positions at which the plugs 6 and the openings 5 are provided, their sizes, shapes, and the like belong to matters that should be appropriately selected in accordance with the gist of the present invention, and are not limited to the illustrated embodiments.

Further, in carrying out the present invention, the plug 6 for closing the opening 5 of the lid 2 is closed even during heating and is automatically removed by the vapor pressure generated in the container to open the opening 5.
May be opened. In this case, the degree of contact between the stopper 6 and the opening 5 is higher than the degree of contact between the peripheral groove 8 of the lid and the upper edge 1'of the container body 1 for the purpose of preventing danger. Needless to say, it is necessary to obtain a sufficiently low fitting state, and the fitting shape of the plug body 6 and the opening portion 5 is of a structure suitable for use in the automatic opening as described above.

[0016]

The hermetically sealed container of the present invention constructed as described above and used as described above eliminates various drawbacks required of the conventional container of this type, and particularly preserves food. It is a very useful invention that can be used safely for cooking and cooking.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a vertical sectional side view.

[Explanation of symbols]

1 Container body (1 'upper edge) 2 lid 3 hard body 4 Soft peripheral part 5 openings 6 plugs 7 Hinge part 8 circumferential grooves L marking line

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Fuse cultivation             5 1212 Kitamachi Kitamachi, Yamatokoriyama City, Nara Prefecture               Iwasaki Industry Co., Ltd. F-term (reference) 3E084 AA05 AA14 AA24 AB10 BA02                       CA03 CC03 CC08 DA03 DB13                       DC03 FA09 FC03 GA08 GB12                       JA10 KA01

Claims (3)

[Claims] 1. A hermetically-sealed container made of resin, wherein a lid is airtightly fitted to an upper edge of the container body. The container body is made of polycarbonate (PC), and a hard body portion forming a central portion of the lid. Is made of transparent polycarbonate (PC), and a soft peripheral portion integrated with the peripheral portion of the hard main body with a peripheral groove fitted to the upper edge of the container main body is used as a polypropylene-ethylene / propylene rubber-based elastomer ( TP
A sealed container characterized by being formed of O). 2. An opening is provided at an appropriate position on the hard main body of the lid, and a plug body for opening and closing the opening is integrally extended from the soft peripheral edge portion, or is made of the same material as the soft peripheral edge portion. To form a stopper, remove the stopper when heating the sealed container,
The hermetically sealed container according to claim 1, wherein an opening is opened for use. 3. A plug body provided with an opening portion at an appropriate position of a hard main body portion of the lid, and the opening portion being integrally extended from a soft peripheral portion of the lid or provided separately from the lid. 2. The hermetically sealed container according to claim 1, wherein the hermetically sealed container is configured to be automatically closed by the vapor pressure generated in the container and opened when the hermetically sealed container is heated and used.