JP7158643B2 - microwave container - Google Patents

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JP7158643B2
JP7158643B2 JP2018142070A JP2018142070A JP7158643B2 JP 7158643 B2 JP7158643 B2 JP 7158643B2 JP 2018142070 A JP2018142070 A JP 2018142070A JP 2018142070 A JP2018142070 A JP 2018142070A JP 7158643 B2 JP7158643 B2 JP 7158643B2
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container
opening
electromagnetic shielding
microwave oven
heat
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JP2020019483A (en
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由夫 山内
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Kyoraku Co Ltd
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Kyoraku Co Ltd
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Description

本発明は、電子レンジ用容器に関する。 The present invention relates to microwave containers.

従来から、内容物を電子レンジで加熱可能な弁当等の容器が提案されている。弁当の内容物には、温めて食すことに適した物（例えばご飯等）と温めて食すことに適さない物（例えばフルーツ等）が含まれる場合がある。弁当容器内の一部を加熱しないようにした技術として、例えば、特許文献１の電磁遮蔽容器が開示されている。この電磁遮蔽容器は、弁当用の容器の一部に収容される。電磁遮蔽容器は、本体の内側又は外側に電磁遮蔽部材を設け、蓋部にマイクロ波を遮蔽すると共に、中身が見える程度の大きさの孔を備えている。 Conventionally, containers such as box lunches whose contents can be heated in a microwave oven have been proposed. The contents of the boxed lunch may include items suitable for eating warm (eg, rice) and items not suitable for eating warm (eg, fruit). For example, JP-A-2003-100002 discloses an electromagnetic shielding container as a technique for preventing heating of a portion of the inside of a lunch box container. This electromagnetic shielding container is housed in a portion of a boxed lunch container. The electromagnetic shielding container is provided with an electromagnetic shielding member inside or outside the main body, shields microwaves in the lid, and has a hole large enough to allow the contents to be seen.

特開平９－１３２２７９号公報JP-A-9-132279

しかしながら、特許文献１では、電磁遮蔽容器の本体を覆う蓋部を、容器全体の蓋部とは別体で設けているため、包装工程が煩雑となる場合がある。 However, in Patent Literature 1, the lid portion covering the main body of the electromagnetic shielding container is provided separately from the lid portion of the entire container, which may complicate the packaging process.

本発明は、以上の点に鑑み、簡易な構成で内容物の一部を加熱しない電子レンジ用容器を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a microwave oven container which has a simple structure and does not partially heat the contents.

本発明の電子レンジ用容器は、電磁遮蔽室を含んで開口部を有する容器本体と、複数の開口孔が形成されて前記電磁遮蔽室に対向配置された電磁遮蔽層を有し、前記開口部を封止する蓋部と、を備えることを特徴とする。 A microwave oven container of the present invention includes a container body including an electromagnetic shielding chamber and having an opening, and an electromagnetic shielding layer having a plurality of openings and facing the electromagnetic shielding chamber. and a lid that seals the.

本発明によれば、簡易な構成で内容物の一部を加熱しない電子レンジ用容器を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the container for microwave ovens which does not heat a part of contents by simple structure can be provided.

本発明の実施形態に係る容器の斜視図である。1 is a perspective view of a container according to an embodiment of the invention; FIG. 本発明の実施形態に係る容器本体を示す平面図である。It is a top view which shows the container main body which concerns on embodiment of this invention. 本発明の実施形態に係る図２の容器本体の開口部付近におけるＩＩＩ－ＩＩＩ断面図である。3 is a cross-sectional view taken along line III-III in the vicinity of the opening of the container body of FIG. 2 according to the embodiment of the present invention; FIG. 本発明の実施形態に係る電磁遮蔽室の構成の一部を示す図であり、（ａ）は遮蔽容器及び電磁遮蔽層の斜視図を示し、（ｂ）は遮蔽容器及び電磁遮蔽層の平面図を示している。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows a part of structure of the electromagnetic shielding room which concerns on embodiment of this invention, (a) shows the perspective view of a shielding container and an electromagnetic shielding layer, (b) is a top view of a shielding container and an electromagnetic shielding layer. is shown.

以下、本発明を実施するための形態について述べる。図１は、電子レンジ用の容器１０の斜視図である。また図２は、容器本体２０の平面図である。容器１０は、容器本体２０と、容器本体２０を封止する蓋部３０とを備える。容器本体２０と蓋部３０とは樹脂材により形成することができる。 A mode for carrying out the present invention will be described below. FIG. 1 is a perspective view of a container 10 for microwave ovens. 2 is a plan view of the container body 20. FIG. The container 10 includes a container body 20 and a lid portion 30 that seals the container body 20 . The container main body 20 and the lid portion 30 can be made of a resin material.

容器本体２０は、全体が略直方体状に形成され、上部に開口部２１を有する。また、容器本体２０は、開口部２１から外方に延設されたフランジ部２２を有する。フランジ部２２の外周形状は平面視略長方形である。フランジ部２２の四隅の角部はフランジ部２２の他の部分よりも幅広の幅広部２２Ａとして形成される。フランジ部２２の上面側には、上方に凸となるリブ状の熱融着部２３が形成される。熱融着部２３はフランジ部２２の全周に亘って形成される。したがって、熱融着部２３は、開口部２１の外周縁を囲うように配置される。 The container body 20 is generally formed in a substantially rectangular parallelepiped shape and has an opening 21 at the top. Further, the container body 20 has a flange portion 22 extending outward from the opening portion 21 . The outer peripheral shape of the flange portion 22 is approximately rectangular in plan view. Four corners of the flange portion 22 are formed as wide portions 22A that are wider than the other portions of the flange portion 22 . A rib-shaped heat-sealed portion 23 that protrudes upward is formed on the upper surface side of the flange portion 22 . The heat-sealed portion 23 is formed over the entire circumference of the flange portion 22 . Therefore, the heat-sealed portion 23 is arranged so as to surround the outer peripheral edge of the opening 21 .

蓋部３０は、フランジ部２２と略同じ外周形状でありフィルム状に形成される。蓋部３０は、容器本体２０に内容物を収容して熱融着部２３と熱融着されることによって、開口部２１を封止する。図１では、蓋部３０の一部を熱融着部２３の上面部（図２に示すハッチング部）から剥離している様子を示している。 The lid portion 30 has substantially the same outer peripheral shape as the flange portion 22 and is formed in a film shape. The lid portion 30 seals the opening portion 21 by housing the contents in the container body 20 and being heat-sealed to the heat-sealing portion 23 . FIG. 1 shows a state in which a portion of the lid portion 30 is peeled off from the upper surface portion (hatched portion shown in FIG. 2) of the heat-sealed portion 23 .

図３は、図２の容器本体２０の開口部２１付近におけるＩＩＩ－ＩＩＩ断面図である。容器本体２０のフランジ部２２は、外縁側へ向かって徐々に下方へ傾斜している。フランジ部２２の傾斜は、全周に亘って形成される。熱融着部２３の上面は略水平な平坦面として形成される。 FIG. 3 is a cross-sectional view taken along line III-III in the vicinity of the opening 21 of the container body 20 of FIG. The flange portion 22 of the container body 20 is gradually inclined downward toward the outer edge side. The inclination of the flange portion 22 is formed over the entire circumference. The upper surface of the heat-sealed portion 23 is formed as a substantially horizontal flat surface.

図２で、フランジ部２２の一つの幅広部２２Ａにおける熱融着部２３は、開封部２４と蒸気排出部２５とを有して略Ｍ字状に形成される。各開封部２４は、蒸気排出部２５と一部を共通にして蒸気排出部２５の両側に形成され、平面視において容器本体２０の内側へ向かって拡開する略Ｖ字状に形成される。開封部２４を設けたことにより、開封部２４周辺の蓋部３０を上方側へ引っ張ると略Ｖ字状に形成した各開封部２４の先鋭部に応力が集中し、蓋部３０と開封部２４とを容易に剥離させることができる。よって、開封部２４は、蓋部３０の開封操作に対し剥離強度が弱くなるように形成される。 In FIG. 2, the heat-sealed portion 23 in one wide portion 22A of the flange portion 22 has an opening portion 24 and a steam discharge portion 25 and is formed in a substantially M shape. Each unsealing portion 24 shares a portion with the steam discharging portion 25 and is formed on both sides of the steam discharging portion 25, and is formed in a substantially V shape expanding toward the inside of the container body 20 in plan view. By providing the unsealable portion 24, when the lid portion 30 around the unsealable portion 24 is pulled upward, stress is concentrated on the sharpened portion of each of the substantially V-shaped unsealable portions 24, and the lid portion 30 and the unsealable portion 24 are brought together. can be easily peeled off. Therefore, the opening portion 24 is formed so that the peel strength against the opening operation of the lid portion 30 is weakened.

蒸気排出部２５は、図２の平面視において容器本体２０の外側へ向かって拡開する略Ｖ字状に形成される。また、蒸気排出部２５の上面は開封部２４の先鋭部から下方へ向かって傾斜しており、蒸気排出部２５の先鋭部の上面は、熱融着部２３の上面及び開封部２４の先鋭部の上面よりも低く形成される。蒸気排出部２５を設けたことにより、内容物をレンジで加熱すると、容器本体２０内の蒸気圧が上昇して蓋部３０が容器本体２０から離間する力が略Ｖ字状に形成した蒸気排出部２５の先鋭部に集中し、蓋部３０と蒸気排出部２５とを容易に剥離させることができる。このように、蒸気排出部２５は、容器本体２０内の蒸気圧に対し剥離強度が弱くなるように形成される。 The steam discharge part 25 is formed in a substantially V shape that widens toward the outside of the container body 20 in plan view of FIG. 2 . In addition, the upper surface of the steam discharge portion 25 is inclined downward from the sharpened portion of the opening portion 24, and the upper surface of the sharpened portion of the steam discharge portion 25 is aligned with the upper surface of the heat-sealed portion 23 and the sharpened portion of the opening portion 24. formed lower than the upper surface of the By providing the steam discharge part 25, when the content is heated in the microwave, the steam pressure in the container body 20 rises, and the force of separating the lid part 30 from the container body 20 forms a substantially V-shaped steam discharge. Concentrating on the sharpened portion of the portion 25, the lid portion 30 and the vapor discharge portion 25 can be easily separated. In this way, the steam discharge part 25 is formed so that the peel strength becomes weak against the steam pressure inside the container body 20 .

容器本体２０内には複数の隔壁２６１～２６３により区画された複数の収容室４０が形成される。収容室４０としては、加熱室４１，４２及び電磁遮蔽室４３が含まれる。加熱室４１及び加熱室４２には電子レンジで加熱する内容物が収容され、電磁遮蔽室４３には電子レンジで加熱しない内容物が収容される。電磁遮蔽室４３は他の収容室４０である加熱室４１及び加熱室４２よりも小さい容積で形成される。 A plurality of storage chambers 40 partitioned by a plurality of partition walls 261 to 263 are formed in the container body 20 . The storage chamber 40 includes heating chambers 41 and 42 and an electromagnetic shielding chamber 43 . The heating chamber 41 and the heating chamber 42 contain contents to be heated by a microwave oven, and the electromagnetic shielding chamber 43 contains contents not to be heated by a microwave oven. The electromagnetic shielding chamber 43 is formed with a volume smaller than that of the heating chambers 41 and 42 which are the other housing chambers 40 .

隔壁２６２の高さは隔壁２６１よりもやや低くすることができ（図１も参照）、これにより、加熱室４１と加熱室４２とで蒸気圧が分圧され易くなる。そのため、蓋部３０と容器本体２０とが蒸気排出部２５と異なる箇所の熱融着部２３で剥離することを低減することができる。なお、容器本体２０内の蒸気圧の上昇により蓋部３０と隔壁２６２との間に間隙が生ずる場合は、隔壁２６２と隔壁２６１の高さを略同じとしてもよい。 The height of the partition 262 can be made slightly lower than that of the partition 261 (see also FIG. 1), thereby facilitating the division of the vapor pressure between the heating chambers 41 and 42 . Therefore, it is possible to reduce the separation between the lid portion 30 and the container body 20 at the heat-sealed portion 23 that is different from the steam discharge portion 25 . If a gap occurs between the lid portion 30 and the partition wall 262 due to an increase in the vapor pressure inside the container body 20, the heights of the partition wall 262 and the partition wall 261 may be substantially the same.

電磁遮蔽室４３内には、図４（ａ）に示す遮蔽容器５０が収容される。遮蔽容器５０は、上方に開口部５１を有した箱状に形成される。遮蔽容器５０の側壁５２及び底面５３は、電磁遮蔽室４３の内面形状に倣った外形で形成される。遮蔽容器５０の側壁５２及び底面５３はアルミニウム等の導電性材料により形成される。遮蔽容器５０は、金属材料や金属粉を含有させた導電性材料で形成することができる。または、遮蔽容器５０は、樹脂等の基材を有し、基材の内面又は外面に導電体層を印刷、蒸着、貼着等して形成することができる。遮蔽容器５０は、導電体層による電磁遮蔽層を、側壁５２又は底面５３等の一部に設けてもよいし、全体に設けてもよい。 A shielding container 50 shown in FIG. 4A is accommodated in the electromagnetic shielding chamber 43 . The shielding container 50 is formed in a box shape having an opening 51 at the top. A side wall 52 and a bottom surface 53 of the shielding container 50 are formed in an outer shape following the inner surface shape of the electromagnetic shielding chamber 43 . Side walls 52 and bottom surface 53 of shielding container 50 are formed of a conductive material such as aluminum. The shielding container 50 can be made of a metal material or a conductive material containing metal powder. Alternatively, the shielding container 50 may have a base material such as resin, and a conductive layer may be formed by printing, vapor deposition, adhesion, or the like on the inner surface or outer surface of the base material. The shielding container 50 may be provided with an electromagnetic shielding layer made of a conductive layer on a part of the side wall 52 or the bottom surface 53 or the like, or may be provided entirely.

蓋部３０は、図３に示すように、基材シート３１と、この基材シート３１に形成された電磁遮蔽層３２（開口孔３２１の断面は不図示）とを有する。電磁遮蔽層３２は、アルミニウム等の導電性材料を印刷、蒸着、貼着等により基材シート３１の容器本体２０側に設けて形成される。電磁遮蔽層３２は、開口部２１の内縁２２ａ及び隔壁２６１，２６３で囲われた電磁遮蔽室４３の開口部の面積より大きく形成される。蓋部３０が容器本体２０の開口部２１を封止した状態では、電磁遮蔽層３２は遮蔽容器５０と対向する上方位置に開口部５１を覆うように配置されて、遮蔽容器５０の側壁５２の上端部が電磁遮蔽層３２と当接することができる。したがって、電磁遮蔽層３２と遮蔽容器５０とは電気的に接続されて放電を防止でき、電磁遮蔽層３２と遮蔽容器５０との間隙からのマイクロ波の侵入を防止することができる。 As shown in FIG. 3, the lid portion 30 has a base sheet 31 and an electromagnetic shielding layer 32 formed on the base sheet 31 (the cross section of the opening 321 is not shown). The electromagnetic shielding layer 32 is formed by providing a conductive material such as aluminum on the container body 20 side of the base sheet 31 by printing, vapor deposition, adhesion, or the like. The electromagnetic shielding layer 32 is formed larger than the area of the opening of the electromagnetic shielding chamber 43 surrounded by the inner edge 22a of the opening 21 and the partitions 261 and 263 . When the lid portion 30 seals the opening portion 21 of the container body 20 , the electromagnetic shielding layer 32 is arranged at an upper position facing the shielding container 50 so as to cover the opening portion 51 . The upper end can abut against the electromagnetic shielding layer 32 . Therefore, the electromagnetic shielding layer 32 and the shielding container 50 are electrically connected to prevent discharge, and microwaves can be prevented from entering through the gap between the electromagnetic shielding layer 32 and the shielding container 50 .

図４（ｂ）は遮蔽容器５０及び電磁遮蔽層３２の平面図である。電磁遮蔽層３２は、複数行に配設された円形の開口孔３２１を有する。開口孔３２１の一部又は全部は、遮蔽容器５０の開口部５１上（電磁遮蔽室４３の開口部上）の位置に配置される。開口孔３２１は電子レンジに使用されるマイクロ波の波長よりも十分小さい大きさであり、例えば、マイクロ波の波長が約１２ｃｍであるのに対して、開口孔３２１の形状を内径ｔ１が５ｍｍ未満の円形或いは内径ｔ１が１ｍｍ程度の円形とすることができる。したがって、開口孔３２１が形成される位置の基材シート３１を透明に形成することで、電磁遮蔽層３２は、全体としてマイクロ波を反射可能としながら開口孔３２１を介して可視光線等の短波長側の光を透過させることができる。よって、使用者は、容器１０の外部から電磁遮蔽室４３に収容された内容物を視認することができる。また開口孔３２１を内縁が突出しない円形状としたため、開口孔３２１の内縁同士で放電することを低減できる。 4B is a plan view of the shielding container 50 and the electromagnetic shielding layer 32. FIG. The electromagnetic shielding layer 32 has circular openings 321 arranged in a plurality of rows. A part or all of the opening hole 321 is arranged at a position above the opening 51 of the shielding container 50 (above the opening of the electromagnetic shielding chamber 43). The aperture 321 has a size sufficiently smaller than the wavelength of microwaves used in microwave ovens. or a circle with an inner diameter t1 of about 1 mm. Therefore, by forming the base sheet 31 transparent at the positions where the openings 321 are formed, the electromagnetic shielding layer 32 as a whole can reflect microwaves, and short wavelengths such as visible light can be transmitted through the openings 321 . side light can be transmitted. Therefore, the user can visually recognize the contents housed in the electromagnetic shielding chamber 43 from the outside of the container 10 . Moreover, since the opening hole 321 is formed in a circular shape in which the inner edge does not protrude, it is possible to reduce discharge between the inner edges of the opening hole 321 .

遮蔽容器５０の開口部５１上に配置された隣接する各開口孔３２１は、行方向（図４（ｂ）の平面視左右方向）に略等間隔で配置される。また、開口孔３２１は、隣接する行の開口孔３２１同士が行方向に交互にずれて配置される。開口孔３２１のずれ幅は、行内で隣接する開口孔３２１の配置間隔の略半分としている。従って、遮蔽容器５０の開口部５１上に配置された隣接する各開口孔３２１は、平面視斜め方向にも略等間隔で配置される。各開口孔３２１の行方向の配置間隔と斜め方向の配置間隔とを同間隔にしてもよい。また、隣接する開口孔３２１の間隔ｔ２は、開口孔３２１の内径ｔ１よりも小さく形成される。図４（ｂ）の例では、電磁遮蔽層３２の開口孔３２１による空隙率は約６４％である。よって、電磁遮蔽室４３は収容物を容易に視認することができる。また、図４（ａ）及び図４（ｂ）に示すように、電磁遮蔽層３２は、開口孔３２１の一部が欠けた形状とならないように端部３２２付近に開口孔３２１を設けない構成としている。すなわち本実施形態の開口孔３２１は全て円形の貫通孔である。これにより、開口孔３２１の内縁に先鋭部が形成されて開口孔３２１内等で放電することを防止しつつ、開口孔３２１を略等間隔に設けて電磁遮蔽室４３内の外部からの視認性を良くすることができる。 Adjacent opening holes 321 arranged above the opening 51 of the shielding container 50 are arranged at approximately equal intervals in the row direction (horizontal direction in plan view in FIG. 4B). Further, the opening holes 321 are arranged such that the opening holes 321 in adjacent rows are alternately shifted in the row direction. The displacement width of the opening holes 321 is approximately half the arrangement interval of the adjacent opening holes 321 in the row. Therefore, adjacent opening holes 321 arranged on the opening 51 of the shielding container 50 are arranged at substantially equal intervals also in the oblique direction in plan view. The arrangement intervals of the opening holes 321 in the row direction and the arrangement intervals in the oblique direction may be the same. Also, the interval t2 between the adjacent apertures 321 is formed smaller than the inner diameter t1 of the apertures 321 . In the example of FIG. 4B, the porosity of the electromagnetic shielding layer 32 due to the apertures 321 is about 64%. Therefore, the electromagnetic shielding room 43 can easily visually recognize the contents. Further, as shown in FIGS. 4A and 4B, the electromagnetic shielding layer 32 has a configuration in which the opening holes 321 are not provided near the end portion 322 so that the opening holes 321 are not partially cut off. and That is, all the opening holes 321 of this embodiment are circular through holes. As a result, the opening holes 321 are provided at approximately equal intervals while preventing discharge in the opening holes 321 or the like due to formation of a sharpened portion on the inner edge of the opening holes 321, thereby improving visibility from the outside inside the electromagnetic shielding room 43. can be improved.

なお、図２に示した電磁遮蔽室４３において、隔壁２６１及び隔壁２６３の上面に熱融着部２３と連設されるリブ状の熱融着部を設けて、蓋部３０の対向面（例えば図３の基材シート３１の内面）と熱融着させる構成としてもよい。これにより、加熱室４１及び加熱室４２の蒸気圧が上昇しても蓋部３０が膨らんで電磁遮蔽層３２と遮蔽容器５０との間に間隙が生じることを防ぐことができ、マイクロ波や加熱室４１，４２からの水蒸気の侵入を防止して内容物の温度上昇を低減することができる。 In the electromagnetic shielding chamber 43 shown in FIG. 2, a rib-shaped heat-sealed portion continuously connected to the heat-sealed portion 23 is provided on the upper surfaces of the partition walls 261 and 263, and the surface facing the lid portion 30 (for example, The inner surface of the base sheet 31 in FIG. 3) may be heat-sealed. As a result, even if the vapor pressure of the heating chamber 41 and the heating chamber 42 increases, it is possible to prevent the cover 30 from expanding and creating a gap between the electromagnetic shielding layer 32 and the shielding container 50, thereby preventing microwaves and heating. Intrusion of water vapor from the chambers 41 and 42 can be prevented to reduce the temperature rise of the contents.

また、本実施形態では、容器本体２０と別体の遮蔽容器５０を電磁遮蔽室４３に収容させる例について示したが、容器本体２０の一部である電磁遮蔽室４３の底面及び側面の一部又は全部に印刷、蒸着、貼着等により電磁遮蔽層を設けて、遮蔽容器５０を省略する構成としてもよい。 Further, in the present embodiment, an example in which the shielding container 50 separate from the container body 20 is accommodated in the electromagnetic shielding chamber 43 is shown, but the bottom surface and part of the side surface of the electromagnetic shielding chamber 43 that is part of the container body 20 are shown. Alternatively, the shielding container 50 may be omitted by providing an electromagnetic shielding layer on the entire surface by printing, vapor deposition, adhesion, or the like.

また、電磁遮蔽層３２及び遮蔽容器５０は、内部に電位差が生じにくいように十分な厚みや幅を持たせて形成することができる。また、本実施形態の電磁遮蔽層３２と遮蔽容器５０で囲われる外形形状は、略直方体状とした例を示したが、突出する各角部をＲ面取り状に形成して全体的に丸みを持たせた六面体形状としたり、真球状や楕円球状の球形状にして、電磁遮蔽層３２や遮蔽容器５０内に電位差が生じても表面同士の短絡を低減する構成としてもよい。 Also, the electromagnetic shielding layer 32 and the shielding container 50 can be formed with sufficient thickness and width so as to prevent potential difference from occurring inside. Further, although the outer shape surrounded by the electromagnetic shielding layer 32 and the shielding container 50 of the present embodiment has been shown as an example of a substantially rectangular parallelepiped shape, each protruding corner is formed into an R-chamfered shape to make the overall roundness. A holding hexahedral shape, a perfect sphere or an elliptical sphere may be used to reduce short-circuiting between surfaces even if a potential difference occurs in the electromagnetic shielding layer 32 or the shielding container 50 .

また、本実施形態では、各収容室４０を区画する隔壁２６１～２６３を容器本体２０と一体に形成される例について説明したが、容器本体２０内を区画する別体の容器を、容器本体２０内に配置させて、加熱室４２及び電磁遮蔽室４３を形成してもよい。別体の容器は、容器本体２０のフランジ部２２の熱融着部２３内側に位置する内縁２２ａ上（図３参照）に係合させることができる。 In addition, in the present embodiment, an example in which the partition walls 261 to 263 that partition the storage chambers 40 are formed integrally with the container body 20 has been described. may be placed inside to form a heating chamber 42 and an electromagnetically shielded chamber 43 . A separate container can be engaged on the inner edge 22a (see FIG. 3) located inside the heat-sealed portion 23 of the flange portion 22 of the container body 20. As shown in FIG.

以上、本実施形態では、複数の開口孔３２１が形成されて電磁遮蔽室４３に対向して設けられる電磁遮蔽層３２を有する蓋部３０により、開口部２１を封止する構成としたため、簡易な構成で内容物の一部を加熱しない電子レンジ用の容器１０とすることができる。また、電磁遮蔽室４３は、容器本体２０の端に配置したため、周囲の加熱室４１，４２から生じた蒸気圧による電磁遮蔽層３２と電磁遮蔽室４３との離間を低減することができる。 As described above, in the present embodiment, the opening 21 is sealed by the lid portion 30 having the electromagnetic shielding layer 32 provided facing the electromagnetic shielding chamber 43 and having the plurality of opening holes 321 formed therein. The container 10 can be configured for a microwave oven in which a portion of the contents is not heated. In addition, since the electromagnetic shielding chamber 43 is arranged at the end of the container body 20, the distance between the electromagnetic shielding layer 32 and the electromagnetic shielding chamber 43 due to vapor pressure generated from the surrounding heating chambers 41 and 42 can be reduced.

また、以上説明した実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の趣旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これらの実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 Also, the embodiments described above are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and its equivalents.

１０ 容器 ２０ 容器本体
２１ 開口部 ２２ フランジ部
２２Ａ 幅広部 ２２ａ 内縁
２３ 熱融着部 ２４ 開封部
２５ 蒸気排出部 ３０ 蓋部
３１ 基材シート ３２ 電磁遮蔽層
４０ 収容室 ４１ 加熱室
４２ 加熱室 ４３ 電磁遮蔽室
５０ 遮蔽容器 ５１ 開口部
５２ 側壁 ５３ 底面
２６１ 隔壁 ２６２ 隔壁
２６３ 隔壁 ３２１ 開口孔
３２２ 端部
ｔ１ 内径 ｔ２ 間隔 REFERENCE SIGNS LIST 10 container 20 container body 21 opening 22 flange 22A wide portion 22a inner edge 23 heat sealing portion 24 opening portion 25 steam discharge portion 30 lid portion 31 base sheet 32 electromagnetic shielding layer 40 housing chamber 41 heating chamber 42 heating chamber 43 electromagnetic Shielded room 50 Shielded container 51 Opening 52 Side wall 53 Bottom surface 261 Partition 262 Partition 263 Partition 321 Opening hole 322 End t1 Inner diameter t2 Spacing

Claims (4)

開口部、及び開口部から外方に延設されたフランジ部を有し、隔壁により区画される複数の加熱室及び電磁遮蔽室を含む容器本体と、
前記電磁遮蔽室に収容される遮蔽容器と、
複数の開口孔が形成されて前記遮蔽容器と対向する上方位置に配置されるとともに前記遮蔽容器の側壁の上端部と当接する電磁遮蔽層を有し、前記フランジ部に熱融着されることにより前記開口部を封止するフィルム状の蓋部と、
を備えることを特徴とする電子レンジ用容器。 a container body having an opening and a flange portion extending outward from the opening, and including a plurality of heating chambers and electromagnetic shielding chambers partitioned by partition walls ;
a shielding container housed in the electromagnetic shielding room;
It has an electromagnetic shielding layer formed with a plurality of opening holes, arranged at an upper position facing the shielding container and in contact with the upper end portion of the side wall of the shielding container, and is heat-sealed to the flange portion. a film-like lid that seals the opening;
A container for a microwave oven, comprising: 前記開口孔は、複数行に配設されて、隣接する行の前記開口孔同士が交互にずれるように設けられることを特徴とする請求項１に記載の電子レンジ用容器。 2. The container for a microwave oven according to claim 1, wherein said opening holes are arranged in a plurality of rows, and said opening holes in adjacent rows are alternately displaced from each other. 隣接する前記開口孔の間隔は、前記開口孔の内径よりも小さいことを特徴とする請求項１又は請求項２に記載の電子レンジ用容器。 3. The container for a microwave oven according to claim 1, wherein the distance between the adjacent openings is smaller than the inner diameter of the openings. 前記開口部の外周縁の上面に前記蓋部と融着するリブ状の熱融着部を備え、
前記電磁遮蔽室と異なる他の収容室と隣接する位置に、前記熱融着部と前記蓋部との剥離強度を低くした蒸気排出部が形成される、
ことを特徴とする請求項１乃至請求項３の何れか一項に記載の電子レンジ用容器。 A rib-shaped heat-sealing portion that is fused to the lid portion is provided on the upper surface of the outer peripheral edge of the opening,
A steam discharge part is formed at a position adjacent to another storage room different from the electromagnetic shielding room, with a reduced peel strength between the heat-sealed part and the lid part.
The microwave oven container according to any one of claims 1 to 3 , characterized in that:
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JP2013516216A (en) 2009-12-30 2013-05-13 エイチ．ジェイ．ハインツ カンパニー Multi-temperature, multi-material frozen food microwave heating tray
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