JP2009247732A - Container for microwave cooking - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container for microwave cooking which is not squashed when the pressure decreases after cooking is complete, maintains pressure inside the container during heating cooking higher than the atmospheric pressure as well as the conventional case does, and consists of two components only. <P>SOLUTION: The container for microwave cooking 10a consists of a container body 20a for containing food materials and a cover body 30a engaged with the container body. The container body 20a and the cover body 30a have fitting and engaging surfaces 22a and 32a vertically facing each other, and the fitting and engaging surfaces are provided with a ventilation part 40a which includes a recessed part 34a and an air hole 35a and constantly communicates with the air outside. During heating cooking, steam is constantly exhausted through the ventilation part 40a, but its amount is limited enough to let the steam pass through the ventilation part 40a, so that the pressure inside the container is set to a steam pressure higher than the atmospheric pressure. Even when the cooking is completed, the container is left, and pressure inside the container is about to reduce, the air outside flows in through the ventilation part 40a constantly communicating with the air outside, so that the container is not squashed by the pressure from outside. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cooking container using a microwave oven for cooking various foods such as fresh food, noodles, and side dishes with a microwave oven.

  A cooking container using a microwave oven is a simple cooking utensil that can be stored and transported with food sealed and can be cooked in a short time. Among cooking containers with microwave ovens, by providing a pressure adjustment mechanism, the pressure inside the container is maintained at atmospheric pressure or higher, and when the pressure becomes too high, steam is discharged to produce a steaming effect. As a container that can be used, Japanese Patent No. 396377 is disclosed. However, since this container has three parts and its structure is relatively complicated, the applicant has applied Japanese Patent Application No. 2008-74304. In addition, by providing a pressure adjustment mechanism while having two parts, a container capable of cooking that exhibits a steaming effect is proposed.

Japanese Patent No. 396377 Japanese Patent Application No. 2008-74304

  However, since the cooking container of Patent Document 2 has high hermeticity, after cooking, the container gradually deforms so that the container is crushed because the pressure in the container gradually decreases as the temperature inside the container decreases. The soup may jump out and contaminate the inside of the microwave oven.

  Then, an object of this invention is to provide the container for cooking by the microwave oven which solved the above problems.

The present invention, firstly, in a microwave oven cooking container comprising a container body for storing ingredients and a lid body fitted to the container body,
The container body and the lid body have a fitting abutment surface facing up and down,
Secondly, by the microwave oven cooking container, wherein the fitting abutment surface is provided with a ventilation portion comprising a recess and a ventilation hole.
In a microwave oven cooking container comprising a container body for storing ingredients and a lid fitted to the container body,
The convex portion on the side surface of the fitting portion between the container body and the lid body is formed as a concave portion by eliminating a part at the same circumferential position, and a concave portion is provided on the fitting abutment surface corresponding to the portion so that it is always outside air. Thirdly, by using a microwave cooking container characterized by providing a ventilation part that communicates with
In a microwave oven cooking container comprising a container body for storing ingredients and a lid fitted to the container body,
The container body and the lid body have partition ribs that fit into each other to divide the food storage part,
The above-described problem is achieved by the microwave cooking container, wherein a vent portion including a recess and a vent hole is provided on the upper and lower abutting surfaces provided by extending the bottom sides of the partition ribs to be fitted to each other. Solved.

  According to the present invention, since the ventilation portion that is always in communication with the outside air is provided, it is possible to cope with a decrease in pressure inside the container after cooking is completed. That is, after cooking, the pressure in the container drops below atmospheric pressure, so the container tends to deform, but air flows into the container from the vent to restore the pressure in the container. Crushing can be prevented.

  Furthermore, by controlling the size of the ventilation portion, the steaming effect by the steam can be exhibited in the same manner as the conventional method, while the fitting method of the container body and the lid is the same as the conventional method.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First embodiment

  1 and 2 show a cooking container 10a (hereinafter abbreviated as "container 10a") using a microwave oven in which a fitting portion is provided with a ventilation portion in the first embodiment of the present invention. 1 is an exploded perspective view of the container 10a, FIG. 2 (a) is a top view of the container 10a, FIG. 2 (b) is a longitudinal sectional view taken along line bb of FIG. 2 (a), and FIG. FIG. 3 is an enlarged longitudinal sectional view of a part A in FIG.

  As shown in FIG. 1, the container 10a includes a container main body 20a for storing foods and a lid 30a fitted to the container main body 20a. The container body 10a of the first embodiment is divided by a central partition rib 70a and has two independent food storage portions 28a. In addition, a male rib 70a ′ is provided on the partition rib 70a. The upper lid 30a is provided with female ribs 70a '' at positions corresponding to the upper lid 30a so as to be fitted to each other. The independence of the two food storage portions 28a is enhanced by the male rib 70a ′ crossing the center of the container and the female rib 70a ″ at a position corresponding to the male rib 70a ′, and the odor emitted from one food is the other food. In addition, the strength of the container can be increased, and even if the inside is going to be a negative pressure, the container itself is not easily crushed.

  The fitting portion on the outer peripheral side of the container body 20a and the lid body 30a has upper and lower abutting surfaces 22a and 32a. Of these, on the lid body 30a side, the left and right end portions of FIG. An upward recess 34a is formed at the position, and a ventilation hole 40a is formed by providing a ventilation hole 35a at the bottom of the recess 34a.

  Therefore, the steam generated inside the container with cooking is always discharged to the outside through the vent hole 35a as shown in FIG. However, since the amount of steam discharged to the outside is not limited and is only a limited amount that can pass through the ventilation portion 40a, the pressure in the container is maintained higher than the atmospheric pressure, so that the steaming effect is also achieved. Demonstrated. In addition, about the steaming effect, even if compared with the case of the conventional closed type, it was confirmed that there is almost no inferiority.

When cooking is completed after a certain period of time, the cooked food is taken out and eaten, but in some cases, it may be left as it is.
In that case, the temperature inside the container decreases, and the internal pressure also decreases. Then, the force which tries to dent the whole container inside acts from the outside.
However, in this embodiment, since there is the vent hole 3 5 a, external air is automatically introduced from this, so that the pressure in the container is recovered and the container is prevented from being crushed.

  The way of providing the ventilation portion 40a is not limited to this embodiment, but the ventilation hole 35a is on the lid body side, but the recess may be provided downward on the container body side. These positions may be reversed up and down so that the steam is discharged downward.

Second embodiment

  Next, FIG. 3A is a top view of the container 10b according to the second embodiment of the present invention when the ventilation portion is provided on the fitting side surface, and FIG. FIG. 3C is a longitudinal sectional view taken along line b, and FIG. 3C is an enlarged sectional view of part B of FIG.

  In the second embodiment, the container body side surface convex portion 26 and the lid body side convex portion 36 of the container main body 20b and the lid body 30b in the first embodiment are the same in the circumferential direction, that is, FIG. As shown in FIG. 3 (c), the left and right ends of each of the two parts are partly removed to form a concave part (no reference numeral), and an upward concave part 34a ′ is provided on the fitting abutment surface corresponding to the location, In addition, a gap is also formed between the flanges 20f and 30f of the container body 20b and the lid 30b. By having such a ventilation part 40b in a part of the fitting part of the container main body 20b and the lid 30b, crushing at the time of decompression is prevented as in the first embodiment. Moreover, the steaming effect is not inferior to the conventional one.

Third embodiment

  Further, FIG. 4A is a top view of the container 10c according to the third embodiment of the present invention in which the vent portion 40c is provided in the central rib, and FIG. 4B is a line bb in FIG. 4A. FIG. 4C is an enlarged longitudinal sectional view of a portion C in FIG. 4B.

In the third embodiment, upper and lower abutting surfaces 22c and 32c provided by extending the bottom sides of the partitioning ribs 70c ′ and 70c ″ that are fitted to each other to the left and right are used to apply the abutment on the lid 30c side. A pair of ventilation holes 35 are provided on the attachment surface 32c, and a portion provided with the ventilation holes 35 is formed as an upward recess 34c. The abutting surface 22c on the container body 20c side remains straight. The ventilation part 40c provided in this way also has the effect of preventing collapse during decompression, as in the first embodiment. Moreover, the steaming effect is not inferior to the conventional one.
In this embodiment as well, the method of providing the recess and the vent can be changed in the same manner as in the first embodiment.

  FIG. 5A is a top view of a container 10d according to a modified example of the third embodiment, and FIG. 5B is a longitudinal sectional view of still another modified embodiment taken along line bb of FIG. 5A. It is.

  These embodiments are applications of the third embodiment. In FIG. 5A, four additional air holes 35d are provided in the rib 70d ''. As described above, if the additional vent hole 35d is provided, the vapor pressure in the container rapidly increases, and if the center vent hole 34c alone cannot cope with it, the steam is also released from the vent hole 35d. Thus, it is possible to cope with a rapid increase in vapor pressure.

  In addition, as shown in FIG.5 (b), when the fitting part in a center rib is mutually undercut structure, the divided | segmented two foodstuff storage parts can maintain more independence. Furthermore, although not shown, if the female ribs 70d ″ and the male ribs 70d ′ are also fitted with concave grooves corresponding to the ridges provided on both side surfaces, the sealing performance of the container is further improved. be able to. In the case of the embodiment of FIG. 5 (b), the container body and the lid are tightly fitted with the central rib, so the first, second, or third embodiment is used as the ventilation portion.

Fourth embodiment

  Finally, FIG. 6 is an exploded perspective view of the container 10e of the fifth embodiment of the present invention when the vent is at the end of the rectangular container, FIG. 7A is a top view of the upper lid, and FIG. Fig. 7 is a longitudinal sectional view of the entire container taken along line bb in Fig. 7 (a), and Fig. 7 (c) is an enlarged longitudinal sectional view of a portion E in Fig. 5 (b).

  In the fifth embodiment, at the two diagonal corners of the container 10e, the lid 30e is provided with a vent hole 35e, and a recess 24e is formed in a part of the abutment surface 22e on the container body 20e side corresponding to the vent hole 35e. The ventilation part 40e is provided. Thus, the inner volume of the container can be increased by setting the position of the vent hole 35e to the corner. Furthermore, by providing the container body 20e with the protrusion 20p that fits into the vent hole 35e, the lid body 30e is difficult to move upward even when the pressure is increased, thereby increasing the steaming effect.

  If a vent is provided, steam will always escape from this part during cooking, but this phenomenon means that the pressure in the container is kept somewhat higher than the outside air. That is. Moreover, when the pressure is reduced at the end of cooking, the container is not crushed due to the presence of the aeration part, so that the container of the present invention can be cooked with the expectation of a steaming effect, and combines the two effects of preventing the container from collapsing You can have it.

  Naturally, the size of the ventilation portion is set so that optimum cooking can be performed according to the size of the container, the type of ingredients, and the like.

The disassembled perspective view of the container of 1st Embodiment of this invention. (A) is a top view of the container according to the first embodiment of the present invention, (b) is a longitudinal sectional view taken along line aa of (a), and (c) is an enlarged longitudinal sectional view of part A of (b). . (A) is a top view of a container according to a second embodiment of the present invention, (b) is a longitudinal sectional view taken along line bb of (a), and (c) is an enlarged longitudinal sectional view of part B of (b). . (A) is a top view of a container according to a third embodiment of the present invention, (b) is a longitudinal sectional view taken along line cc of (a), and (c) is an enlarged longitudinal sectional view of part C of (b). . (A) is a top view of the container of the modification of 3rd Embodiment of this invention, (b) is a longitudinal cross-sectional view in the bb line of FIG. 5 (a) of another modification. The disassembled perspective view of the container of 4th Embodiment of this invention. (A) is a top view of a container according to a fourth embodiment of the present invention, (b) is a longitudinal sectional view taken along line bb of (a), and (c) is an enlarged longitudinal sectional view of an E portion of (b). .

Explanation of symbols

10: Container for microwave oven cooking
20: Container body
30: Lid
40: Ventilation part 70c ', 70c'': Rib for partition

Claims (4)

In a microwave oven cooking container comprising a container body for storing ingredients and a lid fitted to the container body,
The container body and the lid body have a fitting abutment surface facing up and down,
The fitting contact surface is provided with a ventilation portion including a recess and a ventilation hole,
Microwave cooking container. In a microwave oven cooking container comprising a container body for storing ingredients and a lid fitted to the container body,
The convex portion on the side surface of the fitting portion between the container body and the lid body is formed as a concave portion by eliminating a part at the same circumferential position, and a concave portion is provided on the fitting abutment surface corresponding to the portion so that it is always outside air. It is characterized by providing a ventilation part that communicates with
Microwave cooking container. In a microwave oven cooking container comprising a container body for storing ingredients and a lid fitted to the container body,
The container body and the lid body have partition ribs that fit into each other to divide the food storage part,
The venting part which consists of a crevice and an air vent is provided in the up-and-down facing application face which extended and provided the bottom of the rib for partition mutually fitted,
Microwave cooking container.   The container for microwave oven cooking of Claim 1 or 2 with which the said ventilation | gas_flowing part was provided in the corner of the container.

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