JP5203825B2

JP5203825B2 - Food packaging container

Info

Publication number: JP5203825B2
Application number: JP2008180141A
Authority: JP
Inventors: 康弘広末
Original assignee: FP Corp
Current assignee: FP Corp
Priority date: 2008-07-10
Filing date: 2008-07-10
Publication date: 2013-06-05
Anticipated expiration: 2028-07-10
Also published as: JP2010018312A

Description

本発明は、食品を収容するための食品用包装容器に関し、特には、食品を収容したまま電子レンジで加熱処理される食品用包装容器に関する。 The present invention relates to a food packaging container for containing food, and more particularly to a food packaging container that is heat-treated in a microwave oven while containing food.

従来から、食品を収容する食品用包装容器として、図９（ａ）に示す如く、上部が開放した容器本体５０と、容器本体５０の上部を覆うための蓋体６０とを備えたものが提供されている。 2. Description of the Related Art Conventionally, as a food packaging container for containing food, as shown in FIG. 9A, a container provided with a container body 50 having an open top and a lid body 60 for covering the top of the container body 50 is provided. Has been.

かかる食品用包装容器５は、一般的に、容器本体５０が食品を載置する底部（図示しない）と、該底部の外周から起立した周壁部５１とを備え、蓋体６０が少なくとも底部と対向する蓋本体部６１と、蓋本体部６１の外周から下方に向けて延出した環状垂下部６２とを備え、環状垂下部６２を周壁部５１の上端部に外嵌した状態で、周壁部５１の上端部と蓋本体部６１の外周端部とが面接触するようになっている。 Such a food packaging container 5 generally includes a bottom portion (not shown) on which the container main body 50 places food, and a peripheral wall portion 51 rising from the outer periphery of the bottom portion, and the lid body 60 faces at least the bottom portion. The peripheral wall portion 51 includes a lid main body portion 61 and an annular hanging portion 62 extending downward from the outer periphery of the lid main body portion 61, and the annular hanging portion 62 is externally fitted to the upper end portion of the peripheral wall portion 51. The upper end portion of the lid and the outer peripheral end portion of the lid main body portion 61 are in surface contact.

これにより、上記構成の食品用包装容器５は、蓋体６０を容器本体５０に対して位置決めした上で、容器本体５０の上部を蓋体６０で覆うことができるようになっている。 Accordingly, the food packaging container 5 having the above-described configuration can cover the upper portion of the container body 50 with the lid body 60 after positioning the lid body 60 with respect to the container body 50.

ところで、食品用包装容器５に食品を収容したまま電子レンジで加熱すると、食品に含まれる水分が結露することがあるが、上記構成の食品用包装容器５では、周壁部５１の上端部に蓋本体部６１の外周端部が全周に亘って面接触しているため、結露した水滴が表面張力によって周壁部５１と蓋本体部６１との面接触した部分に溜まってしまい、蓋体６０を容器本体５０から外す際に、水滴が外部に漏れて手を濡らしてしまうといった問題がある。 By the way, when the food packaging container 5 is heated with a microwave oven while containing the food, moisture contained in the food may be condensed. In the food packaging container 5 having the above configuration, the upper end of the peripheral wall 51 is covered with a lid. Since the outer peripheral end portion of the main body portion 61 is in surface contact over the entire circumference, the condensed water droplets accumulate in the surface contact portion between the peripheral wall portion 51 and the lid main body portion 61 due to surface tension. When removing from the container main body 50, there exists a problem that a water droplet leaks outside and wets a hand.

そこで、このような問題を解決すべく、結露によって発生する水滴を容器本体内に流し落とすことで、蓋体を容器本体から取り外す際に水滴が外部に漏れるのを抑制した食品用包装容器が提案されている（例えば、特許文献１参照）。 Therefore, in order to solve such problems, a food packaging container that prevents water droplets from leaking outside when the lid is removed from the container body by pouring water droplets generated by condensation into the container body is proposed. (For example, refer to Patent Document 1).

かかる食品用包装容器は、図９（ｂ）に示す如く、上述のものと同様に、容器本体５０’と蓋体６０’とを備えている。該食品用包装容器５’は、容器本体５０’（周壁部５１’）の上端部に内側へ先下りに傾斜した傾斜部５２’が形成されており、蓋体６０’（蓋本体部６１’）の外周端部を傾斜部５２’の上端又は傾斜部５２’に形成される上向きの傾斜面（図においては、傾斜部５２’の上端）に全周に亘って線接触させることで、蓋体６０’を容器本体５０’に対して位置決めした上で、容器本体５０’の上部を蓋体６０’で覆うことができるようになっている。 As shown in FIG. 9 (b), the food packaging container includes a container body 50 'and a lid 60', as described above. The food packaging container 5 ′ is formed with an inclined portion 52 ′ inclined inward and downward at the upper end portion of the container body 50 ′ (circumferential wall portion 51 ′), and a lid 60 ′ (lid body portion 61 ′). ) Is brought into line contact with the upper end of the inclined portion 52 ′ or the upward inclined surface formed on the inclined portion 52 ′ (in the drawing, the upper end of the inclined portion 52 ′) over the entire circumference. After positioning the body 60 ′ with respect to the container body 50 ′, the upper part of the container body 50 ′ can be covered with the lid body 60 ′.

そして、前記食品用包装容器５’は、蓋体６０’（蓋本体部６１’）の外周端部と傾斜部５２’との境界に留まろうとする水滴が傾斜部５２’（傾斜）によって誘導されて容器本体５０’内に流れ落ちるようになっている。これにより、容器本体５０’（周壁部５１’）の上端部と蓋体６０’（蓋本体部６１’）の外周端部との間に水滴が留まらないため、容器本体５０’から蓋体６０’を取り外す際に、水滴が外部に漏れて手を濡らしてしまうといった事態が回避される。 In the food packaging container 5 ', the water droplets that try to stay at the boundary between the outer peripheral end of the lid 60' (lid body portion 61 ') and the inclined portion 52' are guided by the inclined portion 52 '(inclined). Then, it flows down into the container body 50 '. Thereby, since water droplets do not remain between the upper end portion of the container main body 50 ′ (peripheral wall portion 51 ′) and the outer peripheral end portion of the lid body 60 ′ (lid main body portion 61 ′), the lid body 60 from the container main body 50 ′. When 'is removed, the situation where water droplets leak to the outside and wet your hands is avoided.

そして、上記構成の食品用包装容器５’は、容器本体５０’内に水滴を流し落とすようにしているため、底部の上面に複数の突起（図示しない）が形成されており、該突起上に食品を配置することで、流れ落ちた水滴が食品に付着するのを防止できるようになっている。
特許第３１１４８５９号公報 The food packaging container 5 ′ having the above-described configuration is configured such that water droplets are poured down into the container body 50 ′, and thus a plurality of protrusions (not shown) are formed on the upper surface of the bottom portion. By arranging the food, it is possible to prevent the dropped water droplets from adhering to the food.
Japanese Patent No. 3114659

しかしながら、上述の如く、複数の突起上に食品を配置しても水滴の付着を防止できない場合がある。すなわち、食品には柔らかいものがあり、このような食品を突起上に配置しても突起よりも下方に垂れ下がってしまうため、容器本体５０’内に流れ落ちた水滴（結露水）に食品が浸かってしまう場合がある。 However, as described above, even if food is placed on the plurality of protrusions, there are cases where it is not possible to prevent water droplets from being attached. That is, some foods are soft, and even if such foods are placed on the protrusions, they hang down below the protrusions, so that the food is immersed in the water droplets (condensation water) that have flowed down into the container body 50 '. May end up.

そのため、水滴（結露水）に食品が浸かったままで放置されると衛生上好ましくない状態になってしまう。また、お好み焼き等の加工食品の場合、加工食品が水滴に浸かってしまうとふやけてしまい、加熱直後に食しても本来の味や食感を味わうことができないといった問題がある。 Therefore, if the food is left immersed in water droplets (condensation water), it will be unpreferable for hygiene. Further, in the case of processed foods such as okonomiyaki, there is a problem that if the processed food is soaked in water droplets, the processed food becomes dull and even if it is eaten immediately after heating, the original taste and texture cannot be tasted.

そこで、本発明は、斯かる実情に鑑み、結露によって発生する水滴が開封時に外部に漏れることがない上に、収容する食品が発生した水滴に浸かってしまうことのない食品用包装容器を提供することを課題とする。 Therefore, in view of such circumstances, the present invention provides a food packaging container in which water droplets generated by condensation do not leak to the outside at the time of opening and the food to be stored is not immersed in the generated water droplets. This is the issue.

本発明に係る食品用包装容器は、上部が開放した容器本体と、該容器本体の上部を覆うための蓋体とを備え、前記容器本体は、上面にて食品を支持することで該食品を載置できる底部と、該底部の外周から斜め上方に延出するように形成された周壁部とを備え、前記周壁部は、前記底部の外周に接続された起立部と、該起立部の上端外周に接続されたフランジ部とを備え、前記起立部と前記フランジ部とは、内側が下方に位置する面である傾斜面を有し、前記フランジ部に属する傾斜面は、前記起立部に属する傾斜面よりも小さな傾斜角度で形成されており、前記蓋体は、少なくとも前記容器本体の底部と対向する蓋本体部と、該蓋本体部の外周から下方に向けて延出した環状垂下部とを備え、前記環状垂下部は前記容器本体の周壁部の上端部に外嵌でき、該外嵌により前記容器本体の上部が前記蓋体で覆われ、前記蓋本体部は、下方に向けて突出して前記容器本体の起立部又はフランジ部に属する傾斜面に当接可能な複数の凸部が周方向に間隔をあけて形成され、前記容器本体の起立部には、前記容器本体の起立部又はフランジ部に属する傾斜面に対する前記蓋体の凸部の当接位置と対応するように、該当接位置よりも内側の位置に貯液用凹部が形成されていることを特徴とする。 Food packaging container according to the present invention comprises a container body with its upper part open, and a lid for covering the upper portion of the container body, the container body, the food supporting the food from top a bottom that can be placed, and a formed peripheral wall so as to extend from the outer periphery of the bottom portion diagonally upward, the peripheral wall portion includes a connected standing portion on the outer periphery of the bottom of the standing Tatsubu A flange portion connected to the outer periphery of the upper end, and the upright portion and the flange portion have an inclined surface that is a surface located on an inner side downward, and the inclined surface belonging to the flange portion is formed on the upright portion. is formed with a smaller inclination angle than the inclined surface belonging, the lid comprises at least a bottom portion opposed to the cover body portion of the container body, the lid body portion annular depending portion from the outer periphery extending downward of with the door, the annular depending portion at the upper end of the peripheral wall portion of the container body The external fitting can, we covered at the top is the lid of the container body by fitting the outer, the lid body portion, abuts against the inclined surface belonging to upstanding portion or flange portion of the container body and protrudes downward A plurality of possible convex portions are formed at intervals in the circumferential direction, and the rising position of the container body has a contact position of the convex portion of the lid body with respect to the inclined surface belonging to the standing portion or the flange portion of the container body The liquid storage recess is formed at a position on the inner side of the corresponding contact position .

上記構成の食品用包装容器によれば、蓋体の環状垂下部を周壁部に外嵌した状態、すなわち、容器本体を上方から蓋体で覆った状態で、蓋体（蓋本体部）に形成された複数の凸部が周壁部の傾斜面に対して部分的に当接（点接触）することになる。そして、食品を収容した状態で加熱処理することで水滴（結露水）が発生した場合、その水滴は、蓋体の内面を伝って外周に向けて流れることになる。そうすると、上述の如く、各凸部が傾斜面に点接触しているため、水滴は表面張力によって凸部周辺（当接部位周辺）に留まろうとするが、該凸部の当接した傾斜面が先下りに傾斜しており、また、凸部と傾斜面との接触面積が非常に小さいため、水滴は、凸部を起点にして底部側に向かって周壁部の内面を伝うことになる。 According to the food packaging container having the above configuration, the lid body (lid body portion) is formed in a state in which the annular hanging portion of the lid body is externally fitted to the peripheral wall portion, that is, the container body is covered with the lid body from above. The plurality of convex portions thus made are in partial contact (point contact) with the inclined surface of the peripheral wall portion. And when a water droplet (condensation water) generate | occur | produces by heat-processing in the state which accommodated the foodstuff, the water droplet will flow toward the outer periphery along the inner surface of a cover body. Then, as described above, since each convex portion is in point contact with the inclined surface, water droplets try to stay around the convex portion (around the contact portion) due to surface tension. Is inclined forward and the contact area between the convex portion and the inclined surface is very small, so that water droplets propagate along the inner surface of the peripheral wall portion from the convex portion toward the bottom side.

そうすると、前記周壁部は、傾斜面に対する凸部の当接位置と対応するように、該当接位置よりも内側の位置に貯液用凹部が形成されているため、底部に向かって周壁部の内面を伝う水滴は、貯液用凹部内に入り込むことになる。従って、水滴が底部に到達することがないため、底部上に配置した食品が水滴（結露水）に浸かってしまうことが確実に防止される。また、凸部が傾斜角度の大きな部位に当接することがないため、傾斜面上で凸部に滑り作用が生じにくく、容器本体に対して蓋体を位置決めした状態で安定して取り付けることができる。 Then, since the concave portion for storing liquid is formed at a position inside the corresponding contact position so that the peripheral wall portion corresponds to the contact position of the convex portion with respect to the inclined surface, the inner surface of the peripheral wall portion toward the bottom portion. The water droplets transmitted through the liquid will enter the liquid storage recess. Therefore, since water drops do not reach the bottom, it is possible to reliably prevent the food disposed on the bottom from being immersed in water drops (condensation water). In addition, since the convex portion does not come into contact with a portion having a large inclination angle, it is difficult for the convex portion to slide on the inclined surface, and can be stably attached in a state where the lid is positioned with respect to the container body. .

本発明の一態様として、前記蓋体は、蓋本体部の凸部間から環状垂下部にかけて外方に向けて膨出した膨出部が形成され、環状垂下部を周壁部に外嵌した状態で膨出部と周壁部との間に蒸気排出用の間隙が形成されるように構成されていることが好ましい。このようにすれば、加熱処理中に発生する蒸気を膨出部と周壁部との間の間隙から外部に放出させることができるため、水滴（結露）の発生を抑制することができる。 As one aspect of the present invention, the lid body is formed with a bulging portion that bulges outward from between the convex portions of the lid main body portion to the annular hanging portion, and the annular hanging portion is externally fitted to the peripheral wall portion. It is preferable that a steam discharge gap is formed between the bulging portion and the peripheral wall portion. In this way, the steam generated during the heat treatment can be released to the outside through the gap between the bulging part and the peripheral wall part, so that the generation of water droplets (condensation) can be suppressed.

本発明の他態様として、前記容器本体及び蓋体は、平面視の輪郭が略四角形状に形成され、蓋体は、四つの角部のうちの少なくとも一つに前記凸部が設けられていることが好ましい。通常、平面視の輪郭が略四角形状に形成される容器本体及び蓋体を備える食品用包装容器は、蓋体を容器本体から取り外す際、蓋体の角部を持ち上げるようにして取り外されるため、蓋体の角部に凸部を設けることで、該凸部（凸部と周壁部との接触点）が蓋体を持ち上げる際の支点となり、蓋体を容易に取り外すことができる。 As another aspect of the present invention, the container main body and the lid body have a substantially quadrangular outline in plan view, and the lid body is provided with the convex portion at at least one of four corners. It is preferable. Normally, a food packaging container including a container body and a lid body whose outline in plan view is formed in a substantially rectangular shape is removed by lifting the corners of the lid body when removing the lid body from the container body. By providing convex portions at the corners of the lid body, the convex portions (contact points between the convex portions and the peripheral wall portion) serve as fulcrums for lifting the lid body, and the lid body can be easily removed.

本発明に係る食品用包装容器によれば、結露によって発生する水滴が開封時に外部に漏れることがない上に、収容する食品が発生した水滴に浸かってしまうことがないという優れた効果を奏し得る。 According to the food packaging container of the present invention, water droplets generated by condensation do not leak to the outside at the time of opening, and an excellent effect that the food to be stored is not immersed in the generated water droplets can be achieved. .

以下、本発明の一実施形態に係る食品用包装容器について、添付図面を参照しつつ説明する。 Hereinafter, a food packaging container according to an embodiment of the present invention will be described with reference to the accompanying drawings.

かかる食品用包装容器は、図１、及び図２（ａ）に示す如く、食品Ｆを収容するためのもので、本実施形態においては、収容する食品Ｆとして「お好み焼き」を対象としている。そして、本実施形態に係る食品用包装容器１は、図１及び図２に示す如く、上部が開放した容器本体１０と、容器本体１０の上部を覆うための蓋体２０とを備えている。 As shown in FIGS. 1 and 2 (a), the food packaging container is for containing the food F. In the present embodiment, the food F to be stored is intended for “okonomiyaki”. And the food packaging container 1 which concerns on this embodiment is provided with the container main body 10 which the upper part opened, and the cover body 20 for covering the upper part of the container main body 10 as shown in FIG.1 and FIG.2.

前記容器本体１０は、合成樹脂シートを用いた熱成型法によって成形されたものである。ここで、熱成形法とは、熱可塑性樹脂シートを加熱して軟化させた状態で、所定形状に形状を整えて冷却することで成形品を形成する製法で、例えば、真空成形や圧空成形、真空圧空成形等を含む概念であり、本実施形態に係る容器本体１０は、合成樹脂シートを加熱しつつ真空や圧空、或いはこれらの組み合わせで金型に押し付け、該合成樹脂シートを一方の面側に所定の形状に膨出させた後、冷却して膨出させた周囲を切断（打ち抜く）ことで作製される。 The container body 10 is formed by a thermoforming method using a synthetic resin sheet. Here, the thermoforming method is a production method in which a thermoplastic resin sheet is heated and softened to form a molded product by adjusting the shape to a predetermined shape and cooling, for example, vacuum forming or pressure forming, The container body 10 according to the present embodiment is a concept including vacuum / pressure forming, and the synthetic resin sheet is pressed against a mold by vacuum, compressed air, or a combination thereof while heating the synthetic resin sheet. It is produced by swelling to a predetermined shape and then cutting (punching) the periphery that is cooled and bulged.

該容器本体１０は、図１、図２（ａ）、及び図３（ａ）に示す如く、食品Ｆを載置する底部１００と、該底部１００の外周から起立し、少なくとも上端部に内側へ先下りした上向きの傾斜面Ｓが形成された周壁部１１０とを備えている。本実施形態において、該容器本体１０は、平面視角形状（正方形状）に形成されている。なお、「上向きの傾斜面Ｓ」とは、傾斜した面であって、平面視において視認可能な面を意味する。すなわち、斜め上方に向く面であって、上方から容器本体１０を見たときに視認し得る面を意味する。 As shown in FIGS. 1, 2 (a), and 3 (a), the container body 10 stands from the bottom portion 100 on which the food F is placed and the outer periphery of the bottom portion 100, and at least the upper end portion is inward. And a peripheral wall portion 110 on which an upward inclined surface S is formed. In the present embodiment, the container body 10 is formed in a planar view angle shape (square shape). The “upwardly inclined surface S” means an inclined surface that is visible in plan view. That is, it means a surface that faces obliquely upward and can be visually recognized when the container body 10 is viewed from above.

前記底部１００は、平面視矩形状に形成されている。本実施形態において、収容する食品Ｆとして輪郭が略円形状の「お好み焼き」を対象としているため、底部１００は、お好み焼きＦの外周が略内接円となるように平面視正方形状に形成されている。該底部１００の上面には、複数の凸条１０１…が所定間隔をあけて並列に形成されている。これにより、該容器本体１０は、複数の凸条１０１…で食品Ｆを支持し、仮に底部１００上に水滴（水）が溜まっても該水が食品Ｆに付着しないようになっている。本実施形態において、各凸条１０１…は、平面視波線状に形成されており、各凸条１０１…において非直線状に食品Ｆを支持し、柔らかい食品Ｆであっても型くずれしにくい、すなわち、食品Ｆが凸条１０１…よりも下方に垂れ下がりにくくなっている。 The bottom 100 is formed in a rectangular shape in plan view. In the present embodiment, since the food F to be stored is intended for “okonomiyaki” having a substantially circular outline, the bottom 100 is formed in a square shape in plan view so that the outer periphery of the okonomiyaki F is a substantially inscribed circle. Yes. On the upper surface of the bottom portion 100, a plurality of ridges 101 are formed in parallel at predetermined intervals. Thus, the container body 10 supports the food F with a plurality of ridges 101... Even if water drops (water) accumulate on the bottom 100, the water does not adhere to the food F. In the present embodiment, each of the ridges 101 is formed in a planar wavy line shape, and supports the food F in a non-linear manner on each of the ridges 101, and even the soft food F is not easily deformed. The food F is less likely to hang downward than the ridges 101.

前記周壁部１１０は、底部１００の外周から斜め上方に向けて延出するように形成されている。すなわち、周壁部１１０は、図２（ａ）に示す如く、底部１００を画定する四つの辺のそれぞれから延出した四つの壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄが周方向に連続することで形成されている。各壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄは、上方に向かうにつれて外側に位置するように傾斜しており、隣り合う壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄに接続されている。 The peripheral wall 110 is formed to extend obliquely upward from the outer periphery of the bottom 100. That is, as shown in FIG. 2A, the peripheral wall portion 110 is formed by the four wall portions 110a, 110b, 110c, and 110d extending from each of the four sides defining the bottom portion 100 being continuous in the circumferential direction. Has been. Each wall part 110a, 110b, 110c, 110d inclines so that it may be located outside as it goes up, and is connected to adjacent wall part 110a, 110b, 110c, 110d.

本実施形態に係る容器本体１０は、上述の如く、平面視略正方形状に形成されるため、四つの壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄのそれぞれが略台形状に形成されており、上辺（長手の辺と平行な短手の辺）が底部１００の辺に接続されており、隣接する壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄの斜辺同士が接続されることで周壁部１１０が形成されている。そして、該周壁部１１０は、四つの壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄが台形状に形成され互いの斜辺同士が接続された態様をなすため、壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄ同士の境界は、平面視正方形状をなす容器本体１０の対角線上に位置する。なお、便宜上、図２（ａ）には、各壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄ同士の境界（斜辺）を仮想線（二点鎖線）で示している。 Since the container body 10 according to this embodiment is formed in a substantially square shape in plan view as described above, each of the four wall portions 110a, 110b, 110c, and 110d is formed in a substantially trapezoidal shape, and the upper side ( A short side parallel to the long side) is connected to the side of the bottom part 100, and the peripheral wall part 110 is formed by connecting the oblique sides of the adjacent wall parts 110a, 110b, 110c, 110d to each other. . The peripheral wall portion 110 has a shape in which the four wall portions 110a, 110b, 110c, and 110d are formed in a trapezoidal shape and their hypotenuses are connected to each other, and therefore the boundary between the wall portions 110a, 110b, 110c, and 110d. Are located on the diagonal of the container body 10 having a square shape in plan view. For convenience, in FIG. 2 (a), the boundaries (slanted sides) between the walls 110a, 110b, 110c, and 110d are indicated by virtual lines (two-dot chain lines).

本実施形態に係る周壁部１１０は、図１、図２（ａ）、及び図３に示す如く、内側へ先下りに傾斜し、下端が底部１００の外周に接続された起立部１１１と、起立部１１１の上端外周に連設されたフランジ部１１５とを備えている。 As shown in FIGS. 1, 2 (a), and 3, the peripheral wall portion 110 according to this embodiment includes an upright portion 111 that is inclined inward and downward and whose lower end is connected to the outer periphery of the bottom portion 100. And a flange portion 115 connected to the outer periphery of the upper end of the portion 111.

本実施形態に係る食品用包装容器１は、容器本体１０の上部を蓋体２０で覆った状態で、周壁部１１０の上端部に形成された傾斜面Ｓに対して蓋体２０の後述する凸部２０１が当接するように構成されている。これを前提に、前記周壁部１１０は、図２（ａ）に示す如く、傾斜面Ｓに対する凸部２０１の当接位置Ｐ１，Ｐ２と対応するように、該当接位置Ｐ１，Ｐ２よりも内側の位置に貯液用凹部１１２…が形成されている。 The food packaging container 1 according to the present embodiment has a convexity, which will be described later, of the lid body 20 with respect to the inclined surface S formed on the upper end portion of the peripheral wall portion 110 in a state where the upper portion of the container body 10 is covered with the lid body 20. It is comprised so that the part 201 may contact | abut. On the premise of this, the peripheral wall portion 110 is located inside the corresponding contact positions P1, P2 so as to correspond to the contact positions P1, P2 of the convex portion 201 with respect to the inclined surface S, as shown in FIG. Liquid storage recesses 112 are formed at the positions.

本実施形態に係る周壁部１１０は、上述の如く、起立部１１１とフランジ部１１５とを備えているため、フランジ部１１５よりも内側にある起立部１１１に対して貯液用凹部１１２…が形成されている。より具体的には、本実施形態に係る食品用包装容器１は、容器本体１０及び蓋体２０が平面視四角形状をなすため、その四角形状の輪郭を形成する四つの辺のそれぞれにおいて、両端と中央との間の二箇所に凸部２０１の当接位置Ｐ１，Ｐ１（以下、この当接位置Ｐ１，Ｐ１を中間当接位置という）が設定され、また、四つの角部のそれぞれにも凸部の当接位置Ｐ２（以下、この当接位置Ｐ２を角部当接位置という）が設定されている。 Since the peripheral wall portion 110 according to the present embodiment includes the upright portion 111 and the flange portion 115 as described above, the liquid storage concave portions 112 are formed on the upright portion 111 inside the flange portion 115. Has been. More specifically, the food packaging container 1 according to the present embodiment has both ends on each of the four sides forming the quadrilateral outline because the container body 10 and the lid body 20 form a quadrilateral shape in plan view. The contact positions P1 and P1 of the convex portion 201 (hereinafter referred to as intermediate contact positions) are set at two locations between the center and the center, and each of the four corners is also set. A contact position P2 of the convex portion (hereinafter, this contact position P2 is referred to as a corner contact position) is set.

これに伴い、本実施形態に係る容器本体１０は、各壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄに対して二つの中間当接位置Ｐ１に対応する貯液用凹部１１２…が形成されるとともに、隣り合う壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄに跨るように角部当接位置Ｐ２に対応した貯液用凹部１１２…が形成されている。なお、貯液用凹部１１２…は、当接位置Ｐ１，Ｐ２毎に設けてもよいが、本実施形態においては、壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄに形成される貯液用凹部１１２…は、二箇所の中間当接位置Ｐ１に対して共通したもの、すなわち、容器本体１０の輪郭を構成する各辺の延びる方向において長手をなす溝の如く形成されている。 Accordingly, the container main body 10 according to the present embodiment is formed with the liquid storage recesses 112 corresponding to the two intermediate contact positions P1 with respect to each of the walls 110a, 110b, 110c, and 110d and adjacent to each other. Liquid storage recesses 112 corresponding to the corner contact positions P2 are formed so as to straddle the matching walls 110a, 110b, 110c, and 110d. The liquid storage recesses 112 may be provided for each of the contact positions P1 and P2, but in this embodiment, the liquid storage recesses 112 formed in the walls 110a, 110b, 110c, and 110d are These are formed in common with respect to the two intermediate contact positions P1, that is, like grooves that are long in the extending direction of each side constituting the outline of the container body 10.

前記起立部１１１は、図３（ａ）に示す如く、内周面が内側に向けて先下りした傾斜面Ｓになっている。なお、本実施形態に係る起立部１１１は、上述の如く、傾斜するように形成されているが、底部１００に接続された下端部のみが略直立するように形成されており、底部１００と周壁部１１０の下端部とで受け皿の如く態様をなしている。 As shown in FIG. 3A, the upright portion 111 has an inclined surface S in which the inner peripheral surface descends inward. In addition, although the standing part 111 which concerns on this embodiment is formed so that it may incline as mentioned above, it is formed so that only the lower end part connected to the bottom part 100 may stand substantially upright, and the bottom part 100 and a surrounding wall It forms like a saucer with the lower end of the part 110.

前記フランジ部１１５は、起立部１１１の上端から外方に延出した容器側鍔部１１６と、容器側鍔部１１６の外周から垂下した垂下部１１７と、該垂下部１１７の下端から横方向外方に延出した延出部１１８とを備えている。 The flange portion 115 includes a container side flange 116 extending outward from the upper end of the upright portion 111, a hanging portion 117 depending from the outer periphery of the container side flange 116, and a laterally outward from the lower end of the hanging portion 117. And an extending portion 118 extending in the direction.

前記容器側鍔部１１６は、内側に向けて先下りに傾斜するように形成されている。これにより、容器側鍔部１１６の上面（周壁部１１０の上端面）は、内側に向けて先下りした傾斜面Ｓになっている。そして、本実施形態において、容器側鍔部１１６（傾斜面Ｓ）は、起立部１１１よりも小さな傾斜角度に設定されている。 The container side flange 116 is formed to incline forward and downward toward the inside. Thereby, the upper surface (the upper end surface of the surrounding wall part 110) of the container side collar part 116 is the inclined surface S which descended toward the inner side. And in this embodiment, the container side collar part 116 (inclined surface S) is set to the inclination angle smaller than the standing part 111. FIG.

前記容器側鍔部１１６は、図２（ａ）に示す如く、平面視において四角形状の領域を画定するように形成されている。本実施形態に係る容器側鍔部１１６（上面）は、図３に示す如く、上下方向で波打つように形成されている。ここで、周壁部１１０を各壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄに分割した状態で説明すると、各壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄにおける容器側鍔部１１６（上面）は、平面視帯状をなしており、長手方向で内側の領域を画定し、該長手方向と直交する方向において、内側に向けて先下りするように傾斜している。 As shown in FIG. 2A, the container side flange 116 is formed so as to demarcate a quadrangular region in plan view. As shown in FIG. 3, the container side flange 116 (upper surface) according to the present embodiment is formed so as to wave in the vertical direction. Here, when the peripheral wall portion 110 is described in a state of being divided into the respective wall portions 110a, 110b, 110c, and 110d, the container side flange portion 116 (upper surface) in each of the wall portions 110a, 110b, 110c, and 110d has a band shape in a plan view. The inner region is defined in the longitudinal direction, and is inclined so as to descend downward inward in a direction orthogonal to the longitudinal direction.

そして、本実施形態において、各壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄの容器側鍔部１１６（上面）は、上下方向において、長手方向の両端部及び中央部が高く、その間で両端部及び中央部よりも低くなるように、波打った態様（横方向から見て波状）に形成されている。 And in this embodiment, the container side collar part 116 (upper surface) of each wall part 110a, 110b, 110c, 110d has the both ends and center part of a longitudinal direction high in an up-down direction, and both ends and center part between them It is formed in a wavy form (wavy when viewed from the side) so as to be lower.

前記垂下部１１７は、容器側鍔部１１６の全周に亘って接続されており、略四角形状の枠の如く形成されている。 The drooping portion 117 is connected over the entire circumference of the container side flange 116 and is formed like a substantially square frame.

本実施形態に係る容器本体１０は、上述の如く、合成樹脂シートを用いた熱成形法によって成形されたものであり、外方に向けて延出した前記延出部１１８が成形されている。 As described above, the container body 10 according to the present embodiment is formed by a thermoforming method using a synthetic resin sheet, and the extending portion 118 extending outward is formed.

前記延出部１１８には、周方向において多数の凹凸（図示しない）が交互に形成されており、延出部１１８の外周（エッジ）で誤って手が切ってしまうような事態になるのを防止できるようになっている。すなわち、延出部１１８は、多数の凹凸を形成することで外周（先端）の鋭さを抑えるようにしたセーフティーエッジ加工が施されている。この凹凸は、合成樹脂シートを成形する際に形成される。 In the extending portion 118, a large number of irregularities (not shown) are alternately formed in the circumferential direction, so that a situation in which the hand is accidentally cut off at the outer periphery (edge) of the extending portion 118 is caused. It can be prevented. In other words, the extended portion 118 is subjected to safety edge processing that suppresses the sharpness of the outer periphery (tip) by forming a large number of irregularities. The unevenness is formed when the synthetic resin sheet is molded.

なお、特に言及しなかったが、本実施形態に係る容器本体１０は、熱成型法によって成形されるものであるため、上述の各部の境界部分は連続しており、また、必要に応じた曲率半径で湾曲した（丸みを持たせた）態様で形成されている。 Although not particularly mentioned, since the container body 10 according to the present embodiment is formed by a thermoforming method, the boundary portions of the above-described parts are continuous, and the curvature as required. It is formed in a form curved (rounded) with a radius.

前記蓋体２０は、容器本体１０と同様、合成樹脂シートを用いた熱成型法によって成形されたものである。これにより、蓋体２０についても、外側と内側の形状は対応した凹凸関係になっている。 The lid 20 is formed by a thermoforming method using a synthetic resin sheet, like the container body 10. Thereby, also about the cover body 20, the shape of an outer side and an inner side has a corresponding uneven | corrugated relationship.

前記蓋体２０は、図１、図２（ｂ）、及び図４に示す如く、少なくとも底部１００と対向する蓋本体部２００と、蓋本体部２００の外周から下方に向けて延出した環状垂下部２１０とを備えている。 As shown in FIGS. 1, 2 (b), and 4, the lid 20 includes at least a lid main body 200 that faces the bottom 100, and an annular pendulum that extends downward from the outer periphery of the lid main body 200. Part 210.

蓋本体部２００は、下方に向けて突出して周壁部１１０の上端部にある傾斜面Ｓ（容器側鍔部１１６の上面又は起立部１１１の内面）に当接可能な複数の凸部２０１…が周方向に間隔をあけて形成されている。本実施形態に係る蓋本体部２００は、容器本体１０の底部１００及び起立部１１１と対向し、容器本体１０の開放した部分を閉塞する閉塞部２０２と、該閉塞部２０２の外周から外方に延出した蓋側鍔部２０３とを備えており、該蓋側鍔部２０３に複数の凸部２０１…が形成されている。 The lid body 200 has a plurality of convex portions 201 that protrude downward and can come into contact with the inclined surface S (the upper surface of the container side flange 116 or the inner surface of the upright portion 111) at the upper end of the peripheral wall 110. It is formed at intervals in the circumferential direction. The lid main body 200 according to the present embodiment is opposed to the bottom 100 and the standing part 111 of the container main body 10, and closes the open part of the container main body 10, and outwards from the outer periphery of the closed part 202. The lid side flange 203 is extended, and a plurality of convex portions 201 are formed on the lid side flange 203.

これにより、蓋体２０で容器本体１０を上方側から覆った状態で、各凸部２０１…が周壁部１１０の傾斜面Ｓに当接する結果、蓋側鍔部２０３は、凸部２０１…間で周壁部１１０の傾斜面Ｓに対して間隔があくように形成されている。すなわち、本実施形態に係る食品用包装容器１は、凸部２０１…と傾斜面Ｓとの当接で、蓋側鍔部２０３と周壁部１１０との間に間隙が形成されるように構成されている。 Thereby, in a state where the container body 10 is covered from the upper side with the lid 20, as a result of each convex portion 201 abutting against the inclined surface S of the peripheral wall portion 110, the lid-side flange portion 203 is located between the convex portions 201. It is formed so as to be spaced from the inclined surface S of the peripheral wall portion 110. That is, the food packaging container 1 according to the present embodiment is configured such that a gap is formed between the lid-side flange portion 203 and the peripheral wall portion 110 by the contact between the convex portions 201 and the inclined surface S. ing.

閉塞部２０２は、図１、図２（ｂ）、図４（ａ）及び図４（ｂ）に示す如く、平面視四角形状の天部２０２ａと、該天部２０２ａの外周から垂下した蓋周壁部２０２ｂとを備えている。本実施形態に係る天部２０２ａは、底部１００と略同サイズに形成されている。これに伴い、蓋周壁部２０２ｂは、下方に向かうにつれて拡大するように形成されており、蓋体２０を容器本体１０に取り付けた状態で、周壁部１１０の起立部１１１と対向するように形成されている。 As shown in FIGS. 1, 2 (b), 4 (a) and 4 (b), the closing portion 202 includes a top portion 202a having a rectangular shape in plan view, and a lid peripheral wall depending from the outer periphery of the top portion 202a. Part 202b. The top portion 202a according to the present embodiment is formed to have substantially the same size as the bottom portion 100. Accordingly, the lid peripheral wall portion 202b is formed to expand toward the lower side, and is formed to face the upright portion 111 of the peripheral wall portion 110 in a state where the lid body 20 is attached to the container body 10. ing.

前記蓋側鍔部２０３は、図４（ａ）及び図４（ｂ）に示す如く、蓋体２０を容器本体１０に取り付けた際に容器側鍔部１１６と対向する鍔本体部２０３ａと、該鍔本体部２０３ａと蓋周壁部２０２ｂとを接続する鍔接続部２０３ｂとを備えている。本実施形態に係る蓋体２０は、蓋側周壁部２０２ｂの下端が鍔本体部２０３ａよりも下方側に位置するように形成されているため、前記鍔接続部２０３ｂは、鍔本体部２０３ａから蓋側周壁部２０２ｂ（内側）に向けて先下りに傾斜するように形成されている。該蓋側鍔部２０３（鍔本体部２０３ａ）は、容器側鍔部１１６と対応するように、上下方向で波打った形態で形成されている。すなわち、蓋側鍔部２０３（鍔本体部２０３ａ）は、図４（ｃ）に示す如く、平面視における各角部と角部間の中央が最も高く、角部と中央との間で低くなるように、上下方向で波打った形態で形成されている。 As shown in FIGS. 4 (a) and 4 (b), the lid-side flange 203 includes a flange body 203a that faces the container-side flange 116 when the lid 20 is attached to the container body 10, and A heel connecting portion 203b that connects the heel body portion 203a and the lid peripheral wall portion 202b is provided. The lid body 20 according to the present embodiment is formed so that the lower end of the lid-side peripheral wall portion 202b is positioned below the heel body portion 203a. Therefore, the heel connection portion 203b is connected to the lid body portion 203a from the lid body portion 203a. It is formed so as to incline forward and downward toward the side peripheral wall 202b (inner side). The lid-side flange portion 203 (the flange main body portion 203a) is formed in a waved form in the vertical direction so as to correspond to the container-side flange portion 116. That is, as shown in FIG. 4 (c), the lid-side flange portion 203 (the flange main body portion 203a) has the highest center between the corners in the plan view and is lower between the corners and the center. Thus, it is formed in a wavy form in the vertical direction.

本実施形態において、前記容器側鍔部１１６（上面）が上下に波打った態様で形成されているため、蓋体２０の凸部２０１…は、容器側鍔部１１６（上面）の上下方向で低くなった部位（両端と中央との間）に対応して設けられている。また、本実施形態においては、上述の如く、図２（ｂ）に示す如く、容器本体１０及び蓋体２０が平面視四角形状に形成されているため、四つの角部の少なくとも一つ（本実施形態においては四つの角部の全て）に対応する位置にも凸部２０１…が設けられている。なお、本実施形態に係る蓋体２０は、蓋側鍔部２０３における角部が上方に向けて膨出しており、該膨出した部位の内側に前記凸部２０１…が形成されている。なお、本実施形態において、角部に設けられた凸部２０１…に限り、起立部１１１の上端部（傾斜面Ｓ）に当接するように配置されている。 In the present embodiment, since the container side flange 116 (upper surface) is formed in a undulating manner, the convex portions 201 of the lid 20 are formed in the vertical direction of the container side flange 116 (upper surface). It is provided corresponding to the lowered part (between both ends and the center). In the present embodiment, as described above, as shown in FIG. 2B, the container body 10 and the lid body 20 are formed in a quadrangular shape in plan view, so that at least one of the four corners (the book) In the embodiment, convex portions 201 are also provided at positions corresponding to all four corner portions). In the lid 20 according to the present embodiment, the corners of the lid side flange 203 bulge upward, and the convex portions 201 are formed inside the bulged portion. In this embodiment, only the convex portions 201 provided at the corners are disposed so as to contact the upper end portion (inclined surface S) of the standing portion 111.

本実施形態に係る蓋体２０は、図１、図２（ｂ）、図４（ａ）及び図４（ｃ）に示す如く、蓋本体部２００の凸部２０１…間から環状垂下部２１０にかけて外方に向けて膨出した膨出部２２０が形成されている。これにより、図５に示す如く、環状垂下部２１０を周壁部１１０（壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄ）に外嵌した状態で膨出部２２０と周壁部１１０との間に蒸気排出用の間隙Ｇが形成されるようになっている。本実施形態においては、凸部２０１…間に二つの膨出部２２０が形成されている。 The lid 20 according to the present embodiment extends from between the convex portions 201 of the lid body 200 to the annular hanging portion 210 as shown in FIGS. 1, 2 (b), 4 (a), and 4 (c). A bulging portion 220 bulging outward is formed. As a result, as shown in FIG. 5, steam discharge is performed between the bulging portion 220 and the peripheral wall portion 110 in a state where the annular hanging portion 210 is externally fitted to the peripheral wall portion 110 (wall portions 110 a, 110 b, 110 c, 110 d). A gap G is formed. In the present embodiment, two bulging portions 220 are formed between the convex portions 201.

前記環状垂下部２１０は、延出部１１８に対して外嵌できるサイズに設定されている。より具体的には、本実施形態に係る環状垂下部２１０は、図４（ｂ）及び図４（ｃ）に示す如く、蓋側鍔部２０３の外周から垂下して容器本体１０の垂下部１１７に外嵌可能に形成された第一垂下部２１１と、該第一垂下部２１１の下端から外方に向けて延出し、容器本体１０の延出部１１８上に載置可能な蓋側延出部２１２と、該蓋側延出部２１２の外周から垂下して延出部１１８の外周に外嵌可能な第二垂下部２１３とで構成されている。 The annular hanging portion 210 is set to a size that can be externally fitted to the extending portion 118. More specifically, as shown in FIGS. 4B and 4C, the annular hanging portion 210 according to the present embodiment is suspended from the outer periphery of the lid-side flange portion 203, and the hanging portion 117 of the container body 10. A first hanging portion 211 formed so as to be able to fit on the lid, and a lid-side extending portion that extends outward from the lower end of the first hanging portion 211 and can be placed on the extending portion 118 of the container body 10. A part 212 and a second hanging part 213 that hangs down from the outer periphery of the lid-side extension part 212 and can be externally fitted to the outer periphery of the extension part 118.

そして、図１に示す如く、前記第二垂下部２１３の角部に対応した部位には、延出部１１８の角部に傾動可能な係合凸部２１４…が内側に向けて突出して形成されている。これにより、第一垂下部２１１が容器本体１０の垂下部１１７に外嵌されるとともに、第二垂下部２１３が延出部１１８に外嵌され、蓋側延出部２１２が延出部１１８上に載った状態で、各角部において係合凸部２１４…が延出部１１８に係合する結果（図８参照）、蓋体２０を取り付けた状態で維持できるようになっている。 As shown in FIG. 1, engaging convex portions 214 that can be tilted to the corner portion of the extension portion 118 are formed to protrude inward at a portion corresponding to the corner portion of the second hanging portion 213. ing. Accordingly, the first hanging portion 211 is fitted on the hanging portion 117 of the container body 10, the second hanging portion 213 is fitted on the extending portion 118, and the lid side extending portion 212 is placed on the extending portion 118. As a result of the engagement projections 214... Engaging with the extension 118 at each corner (see FIG. 8), the lid 20 can be maintained attached.

なお、かかる蓋体２０についても、合成樹脂シートを用いた熱成形法によって成形されたものであるので、図４に示す如く、成形後の打ち抜きの余裕代２１５が環状垂下部２１０（第二垂下部２１３）の下端から外方に向けて延出した状態で残っている。そして、この余裕代２１５にも、周方向において多数の凹凸（図示しない）が交互に形成されており、延出部１１８の外周（エッジ）で誤って手が切れないようになっている。すなわち、蓋体２０の余裕代にも、セーフティーエッジ加工が施されている。 Since the lid 20 is also molded by a thermoforming method using a synthetic resin sheet, as shown in FIG. 4, the blanking margin 215 after molding has an annular hanging portion 210 (second hanging portion). The portion 213) remains outwardly extending from the lower end. In the margin 215, a large number of irregularities (not shown) are alternately formed in the circumferential direction so that the hand is not accidentally cut off at the outer periphery (edge) of the extending portion 118. In other words, the safety edge processing is also applied to the margin of the lid 20.

本実施形態に係る食品用包装容器１は、以上の構成からなり、次に、かかる食品用包装容器１の使用態様について説明すると、容器本体１０の底部１００上に食品Ｆ（お好み焼きＦ）を載置した上で、容器本体１０を蓋体２０で覆っておく。この状態で、図６〜図８に示す如く、各凸部２０１…が周壁部１１０の上端部にある傾斜面Ｓ（容器側鍔部１１６の上面又は起立部１１１の上端部の内面）に当接した状態になるが、本実施形態においては、角部以外の凸部２０１…が起立部１１１よりも小さな傾斜角度で傾斜した傾斜面Ｓ（容器側鍔部１１６）に当接しているため、傾斜面Ｓ上で凸部２０１…に滑り作用が生じにくく、容器本体１０に対して蓋体２０を位置決めした状態で安定して取り付けられる。 The food packaging container 1 according to the present embodiment has the above-described configuration. Next, the usage mode of the food packaging container 1 will be described. The food F (okonomiyaki F) is placed on the bottom 100 of the container body 10. Then, the container body 10 is covered with the lid 20. In this state, as shown in FIG. 6 to FIG. 8, each convex portion 201... Hits the inclined surface S (the upper surface of the container side flange 116 or the inner surface of the upper end portion of the upright portion 111) at the upper end portion of the peripheral wall portion 110. In this embodiment, since the projections 201 other than the corners are in contact with the inclined surface S (container side flange 116) inclined at an inclination angle smaller than the upright portion 111, in this embodiment, On the inclined surface S, the protrusions 201 are less likely to slide, and can be stably attached with the lid 20 positioned relative to the container body 10.

そして、食品Ｆを食すべく、食品Ｆが収容された食品用包装容器１をそのまま電子レンジで加熱処理する。そうすると、食品Ｆに含まれる水分が加熱される結果、食品用包装容器１内に蒸気が充満することになるが、上記構成の食品用包装容器１は、図５及び図７に示す如く、蓋体２０に膨出部２２０が形成されることで内外を連通させる蒸気排出用の間隙Ｇが蓋体２０と容器本体１０との間に形成されるため、発生した蒸気がこの間隙Ｇから外部に出て行くことになる。 And in order to eat the food F, the food packaging container 1 in which the food F is accommodated is heated as it is in a microwave oven. As a result, the moisture contained in the food F is heated, and as a result, the food packaging container 1 is filled with steam. The food packaging container 1 having the above-described configuration has a lid as shown in FIGS. By forming the bulging portion 220 in the body 20, a vapor discharge gap G that communicates the inside and the outside is formed between the lid body 20 and the container body 10, so that the generated steam is discharged from the gap G to the outside. Will go out.

これにより、食品用包装容器１内に残留する蒸気が少なくなる結果、加熱処理後に結露しても水滴の発生量が少なくなる。そして、加熱処理後に食品用包装容器１内に残留した蒸気が結露して水滴が発生し、水滴は表面張力によって凸部２０１…周辺（当接部位周辺）に留まろうとしても、各凸部２０１…が傾斜面Ｓに点接触して凸部２０１…と傾斜面Ｓとの接触面積が非常に小さく、また、凸部２０１…の当接した傾斜面Ｓが内側に向けて先下りに傾斜しているため、水滴は、凸部２０１…を起点にして底部１００側に向かって周壁部１１０の内面を伝うことになる。 As a result, the amount of steam remaining in the food packaging container 1 is reduced. As a result, the amount of water droplets generated is reduced even if condensation occurs after the heat treatment. The steam remaining in the food packaging container 1 after the heat treatment is condensed and water droplets are generated. Even if the water droplets try to stay around the convex portion 201 (periphery of the contact portion) due to surface tension, each convex portion 201 ... are in point contact with the inclined surface S, and the contact area between the convex portion 201 ... and the inclined surface S is very small, and the inclined surface S with which the convex portion 201 ... is inclining inwardly downwards. Therefore, the water droplets travel along the inner surface of the peripheral wall portion 110 toward the bottom portion 100 with the convex portions 201 as starting points.

そうすると、前記周壁部１１０は、傾斜面Ｓに対する凸部２０１…の当接位置Ｐ１，Ｐ２と対応するように、該当接位置Ｐ１，Ｐ２よりも内側の位置に貯液用凹部１１２…が形成されているため、底部１００に向かって流れる水滴は貯液用凹部１１２…内に入り込むことになる。従って、水滴が底部１００に到達することがないため、底部１００上に配置した食品Ｆが水滴（結露水）に浸かってしまうことが確実に防止される。 Then, the peripheral wall 110 is formed with the liquid storage recesses 112 at positions inside the corresponding contact positions P1, P2 so as to correspond to the contact positions P1, P2 of the protrusions 201 with respect to the inclined surface S. Therefore, water droplets flowing toward the bottom 100 enter the liquid storage recesses 112. Therefore, since water droplets do not reach the bottom portion 100, the food F disposed on the bottom portion 100 is reliably prevented from being immersed in water droplets (condensation water).

そして、食品Ｆを食すべく、蓋体２０を取り外すことになるが、このとき、図８に示す如く、角部に設けられた凸部２０１…（凸部２０１…と周壁部１１０との接触点）を支点にするように蓋体２０を持ち上げることで、蓋体２０を容易に取り外すことができる。そして、上述の如く、結露による水滴は、貯液用凹部１１２…に回収されているため、上述の如く、蓋体２０を取り外す際に水滴が外部に漏れることがない。従って、水滴が手に付着することなく蓋体２０が取り外されることになる。 Then, in order to eat the food F, the lid 20 is removed. At this time, as shown in FIG. 8, the contact points between the convex portions 201 (convex portions 201 and the peripheral wall portion 110 provided at the corners). The lid 20 can be easily removed by lifting the lid 20 so as to be a fulcrum. As described above, since the water droplets due to condensation are collected in the liquid storage recesses 112..., The water droplets do not leak to the outside when removing the lid 20 as described above. Therefore, the lid 20 is removed without water droplets adhering to the hand.

以上のように、上記構成の食品用包装容器１によれば、蓋本体部２００は、下方に向けて突出して容器本体１０の周壁部１１０の上端部に形成される傾斜面Ｓに当接可能な複数の凸部２０１…が周方向に間隔をあけて形成され、前記周壁部１１０は、上端部の傾斜面Ｓに対する凸部２０１…の当接位置Ｐ１，Ｐ２と対応するように、該当接位置Ｐ１，Ｐ２よりも内側の位置に貯液用凹部１１２…が形成されているため、凸部２０１…を起点にして結露によって発生した水滴を傾斜面Ｓの傾斜で誘導して貯液用凹部１１２…に回収することができる。従って、水滴が底部１００に到達することがないため、底部１００上に配置した食品Ｆが水滴（結露水）に浸かってしまうことが確実に防止される。また、このように水滴が回収されることにより、蓋体２０を取り外す際に水滴が外部に漏れることがなく、水滴が手に付着するといった事態になることも回避することができる。 As described above, according to the food packaging container 1 having the above-described configuration, the lid main body portion 200 protrudes downward and can come into contact with the inclined surface S formed on the upper end portion of the peripheral wall portion 110 of the container main body 10. The plurality of convex portions 201 are formed at intervals in the circumferential direction, and the peripheral wall portion 110 corresponds to the contact positions P1, P2 of the convex portions 201 with respect to the inclined surface S of the upper end portion. Since the liquid storage recesses 112 are formed at positions inside the positions P1 and P2, the liquid storage recesses are guided by the inclination of the inclined surface S with the water droplets generated by condensation starting from the protrusions 201. 112... Can be collected. Therefore, since water droplets do not reach the bottom portion 100, the food F disposed on the bottom portion 100 is reliably prevented from being immersed in water droplets (condensation water). Further, by collecting the water droplets in this way, it is possible to avoid a situation in which the water droplets do not leak to the outside when the lid 20 is removed and the water droplets adhere to the hand.

また、前記蓋体２０は、凸部２０１…間から環状垂下部２１０にかけて外方に向けて膨出した膨出部２２０が形成され、環状垂下部２１０を壁部１１０ａ，１１０ｂ，１１０ｃ，１１０ｄに外嵌した状態で膨出部２２０と周壁部１１０との間に蒸気排出用の間隙が形成されるように構成されているので、加熱処理中に発生する蒸気を膨出部２２０と周壁部１１０との間の隙間から外部に放出させることができ、水滴（結露）の発生を抑制することができる。 Further, the lid 20 is formed with a bulging portion 220 that bulges outward from the convex portion 201 to the annular hanging portion 210, and the annular hanging portion 210 is formed on the walls 110a, 110b, 110c, and 110d. Since the steam discharge gap is formed between the bulging portion 220 and the peripheral wall portion 110 in the externally fitted state, the steam generated during the heat treatment is evacuated from the bulging portion 220 and the peripheral wall portion 110. Can be discharged to the outside through the gap between the two and water droplets (condensation) can be suppressed.

さらに、前記容器本体１０及び蓋体２０は、平面視の輪郭が略四角形状に形成され、蓋体２０は、四つの角部のうちの少なくとも一つに前記凸部２０１…が設けられているので、凸部２０１…（凸部２０１…と周壁部１１０との接触点）を、蓋体２０を持ち上げる際の支点にすることで、蓋体２０を容易に取り外すことができる。 Further, the container body 10 and the lid body 20 are formed in a substantially square shape in plan view, and the lid body 20 is provided with the convex portions 201 at least at one of the four corners. Therefore, the lid body 20 can be easily removed by using the convex portions 201 (contact points between the convex portions 201 and the peripheral wall portion 110) as fulcrums when the lid body 20 is lifted.

また、前記周壁部１１０は、内側へ先下りに傾斜し、下端が底部１００の外周に接続された起立部１１１と、起立部１１１の上端外周に連設されたフランジ部１１５とを備え、該フランジ部１１５には、前記傾斜面Ｓが起立部１１１よりも小さな傾斜角度で形成され、前記貯液用凹部１１２…は、起立部１１１に形成されているので、凸部２０１…が傾斜角度の大きな部位に当接することがない。これにより、傾斜面Ｓ上で凸部２０１…に滑り作用が生じにくく、容器本体１０に対して蓋体２０を位置決めした状態で安定して取り付けることができる。 Further, the peripheral wall portion 110 includes an upright portion 111 that is inclined inward and downward and whose lower end is connected to the outer periphery of the bottom portion 100, and a flange portion 115 that is connected to the upper end outer periphery of the upright portion 111, In the flange portion 115, the inclined surface S is formed at an inclination angle smaller than that of the upright portion 111, and the liquid storage concave portions 112 are formed in the upright portion 111, so that the convex portion 201 has an inclination angle. There is no contact with a large part. Thereby, it is hard to produce a sliding action on the convex portions 201 on the inclined surface S, and the lid body 20 can be stably attached in a state where the lid body 20 is positioned with respect to the container body 10.

尚、本発明の食品用包装容器は、上記実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。 In addition, the food packaging container of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

例えば、上記実施形態において、容器本体１０及び蓋体２０を平面視四角形状に形成したが、これに限定されるものではなく、例えば、容器本体１０及び蓋体２０を平面視において四角形状以外の多角形状に形成したり、円形状に形成したりしてもよい。 For example, in the above-described embodiment, the container body 10 and the lid body 20 are formed in a square shape in plan view. However, the present invention is not limited to this. For example, the container body 10 and the lid body 20 have a shape other than a square shape in plan view. It may be formed in a polygonal shape or a circular shape.

また、上記実施形態において、容器本体１０の周壁部１１０を起立部１１１とフランジ部１１５とで構成し、起立部１１１についても内側へ先下りに傾斜させたが、これに限定されるものではなく、例えば、起立部１１１を略垂直に形成し、フランジ部１１５（蓋側鍔部２０３）のみに傾斜面Ｓを形成するようにしてもよい。この場合、起立部１１１が真っ直ぐに起立するので、例えば、凸部２０１…と傾斜面Ｓとの当接位置Ｐ１，Ｐ２に対応し、且つ当接位置Ｐ１，Ｐ２よりも先下り側に位置することを前提として、蓋側鍔部２０３に貯液用凹部１１２…を形成すればよい。 Moreover, in the said embodiment, although the surrounding wall part 110 of the container main body 10 was comprised by the standing part 111 and the flange part 115, and the standing part 111 was also inclined inward and downward, it is not limited to this. For example, the standing portion 111 may be formed substantially vertically, and the inclined surface S may be formed only on the flange portion 115 (the lid-side flange portion 203). In this case, since the upright part 111 stands upright, for example, it corresponds to the contact positions P1, P2 between the convex parts 201... And the inclined surface S, and is located further down than the contact positions P1, P2. As a premise, the liquid storage recesses 112 may be formed in the lid-side flange 203.

また、周壁部１１０を内側に向けて傾斜した起立部１１１のみで構成し、その起立部１１１の内面（傾斜面Ｓ）に蓋体２０の凸部２０１…を当接させるようにしてもよい。すなわち、少なくとも周壁部１１０の上端部に上向きの傾斜面Ｓを形成し、その傾斜面Ｓに蓋体２０の凸部２０１…を当接させればよい。この場合も、蓋体２０の環状垂下部２１０を起立部１１１の上端部に外嵌することで容器本体１０の上部を蓋体２０で覆うようになる。但し、上述の如く、容器本体１０を熱成型法で形成する場合には、シートの打ち抜きによる工程が必要で、起立部１１１の上端から外方に延出した部分（余裕代）が形成されるため、この部分に蓋体２０の環状垂下部２１０を外嵌させることになる。なお、余裕代には、上述の如く、セーフティーエッジ加工を施すことが好ましいことは言うまでもない。 Alternatively, the peripheral wall portion 110 may be configured by only the standing portion 111 inclined inward, and the convex portions 201 of the lid body 20 may be brought into contact with the inner surface (inclined surface S) of the standing portion 111. That is, an upward inclined surface S may be formed at least on the upper end portion of the peripheral wall portion 110, and the convex portions 201 of the lid 20 may be brought into contact with the inclined surface S. Also in this case, the upper part of the container body 10 is covered with the lid 20 by fitting the annular hanging portion 210 of the lid 20 to the upper end of the upright portion 111. However, as described above, when the container body 10 is formed by the thermoforming method, a step of punching a sheet is necessary, and a portion (margin) extending outward from the upper end of the upright portion 111 is formed. Therefore, the annular hanging portion 210 of the lid body 20 is externally fitted to this portion. Needless to say, as described above, it is preferable to perform safety edge processing for the margin.

上記実施形態において、傾斜面Ｓ（傾斜した起立部１１１）に貯液用凹部１１２を設けたが、これに限定されるものではなく、例えば、傾斜面Ｓの先下りした先端（終端）に隣接して貯液用凹部１１２を設けるようにしてもよい。すなわち、貯液用凹部１１２は、傾斜面Ｓを伝って流れる水滴が流れ込む位置に設ければよい。 In the above-described embodiment, the liquid storage recess 112 is provided on the inclined surface S (inclined standing portion 111). However, the present invention is not limited to this. For example, the inclined surface S is adjacent to the tip (end) that descends. Thus, the liquid storage recess 112 may be provided. That is, the liquid storage recess 112 may be provided at a position where water droplets flowing along the inclined surface S flow.

上記実施形態において、容器側鍔部１１６及び蓋側鍔部２０３を上下方向に波打った形態に形成し、平面視の角部間において、蓋体２０の凸部２０１…を容器側鍔部１１６の低い部分に当接させるようにしたが、これに限定されるものではなく、例えば、角部の凸部２０１…と同様に、容器側鍔部１１６における上下方向で高くなった中央部に対して凸部２０１…を当接させるようにしてもよい。 In the above-described embodiment, the container-side flange 116 and the lid-side flange 203 are formed in a wave shape in the vertical direction, and the convex portions 201 of the lid 20 are formed between the corners in plan view. However, the present invention is not limited to this. For example, similar to the convex portion 201 at the corner portion, the central portion of the container side flange portion 116 is increased in the vertical direction. The convex portions 201 may be brought into contact with each other.

上記実施形態において、容器側鍔部１１６及び蓋側鍔部２０３を上下方向に波打った形態に形成したが、これに限定されるものではなく、容器側鍔部１１６及び蓋側鍔部２０３を横方向に真っ直ぐに延びるように形成してもよい。 In the said embodiment, although the container side collar part 116 and the lid side collar part 203 were formed in the form which wavy up and down, it is not limited to this, The container side collar part 116 and the lid side collar part 203 are It may be formed so as to extend straight in the lateral direction.

上記実施形態において、蓋体２０に膨出部２２０を形成し、容器本体１０と蓋体２０との間に蒸気抜き用の間隙Ｇを形成するようにしたが、膨出部２２０は必要に応じて設ければよい。但し、加熱処理時の蒸気を外部に放出することで結露が抑制されることは上述の通りであるので、上記実施形態のように蓋体２０に膨出部２２０を設けたり、該膨出部２２０に加え、或いは、膨出部２２０に換えて蓋本体部２００に蒸気抜き用の孔を設けたりすることが好ましいことは言うまでもない。 In the above embodiment, the bulging portion 220 is formed in the lid body 20 and the gap G for venting the vapor is formed between the container main body 10 and the lid body 20. Should be provided. However, since it is as described above that the condensation is suppressed by releasing the steam during the heat treatment to the outside, the bulging portion 220 is provided in the lid body 20 as in the above embodiment, or the bulging portion. Needless to say, in addition to 220, it is preferable to provide a vapor venting hole in the lid main body 200 instead of the bulging portion 220.

上記実施形態において、蓋体２０における角部に凸部２０１…を設けるようにしたが、これに限定されるものではなく、凸部２０１…の配置は容器本体１０及び蓋体２０の形態に応じて適宜変更可能である。但し、蓋体２０の取り外しやすさを考慮すれば、上記実施形態のように容器本体１０及び蓋体２０を平面視四角形状に形成する場合や平面視多角形状に形成する場合、蓋体２０（蓋側鍔部２０３）の角部に凸部２０１…を設けることが好ましいことは言うまでもない。 In the above-described embodiment, the convex portions 201 are provided at the corners of the lid body 20. However, the present invention is not limited to this, and the arrangement of the convex portions 201 is according to the form of the container body 10 and the lid body 20. Can be changed as appropriate. However, in consideration of ease of removal of the lid 20, when the container body 10 and the lid 20 are formed in a square shape in plan view or in a polygonal shape in plan view as in the above embodiment, the lid 20 ( Needless to say, it is preferable to provide the projections 201 at the corners of the lid side flange 203).

上記実施形態において、蓋体２０の環状垂下部２１０に蓋側延出部２１２を形成し、容器本体１０の上部を蓋体２０で覆ったときに蓋側延出部２１２が容器本体１０の延出部１１８に当接するように構成したが、これに限定されるものではなく、例えば、環状垂下部２１０を真っ直ぐ下方に延びるように形成してもよい。このようにしても、蓋体２０の凸部２０１…が容器本体１０（周壁部１１０）の傾斜面Ｓに当接することで、蓋体２０を容器本体１０に対して位置決した状態で取り付けることができる。 In the above embodiment, the lid-side extension portion 212 is formed in the annular hanging portion 210 of the lid body 20, and the lid-side extension portion 212 extends from the container body 10 when the upper portion of the container body 10 is covered with the lid body 20. However, the present invention is not limited to this. For example, the annular hanging portion 210 may be formed to extend straight downward. Even if it does in this way, the convex part 201 ... of the lid 20 is attached in a state where the lid 20 is positioned with respect to the container body 10 by abutting against the inclined surface S of the container body 10 (the peripheral wall 110). Can do.

上記実施形態において、包装（収容）する食品Ｆとしてお好み焼きＦを一例に挙げたが、これに限定されるものではなく、電子レンジで加熱処理される種々の食品Ｆであればよい。 In the said embodiment, although the okonomiyaki F was mentioned as an example as the food F to package (contain), it is not limited to this, What is necessary is just the various food F heat-processed with a microwave oven.

上記実施形態において、蓋側鍔部２０３を鍔本体部２０３ａと鍔接続部２０３ｂとで構成したが、これに限定されるものではなく、蓋側鍔部２０３を鍔本体部２０３ａのみで構成し、該鍔本体部２０３ａを蓋周壁部２０２ｂの下端に接続するようにしてもよい。この場合、鍔本体部２０３ａを略水平に延びるように形成したり、鍔本体部２０３ａ全体を内側に向けて先下りに傾斜させるように形成したりしてもよい。 In the above embodiment, the lid-side collar 203 is configured with the collar body 203a and the collar connection 203b, but is not limited thereto, and the lid-side collar 203 is configured with only the collar body 203a. You may make it connect this collar main-body part 203a to the lower end of the lid | cover surrounding wall part 202b. In this case, the heel body portion 203a may be formed to extend substantially horizontally, or the entire heel body portion 203a may be formed to incline forward and downward.

本発明の一実施形態に係る食品用包装容器の斜視図であって、容器本体から蓋体を取り外した状態を示す。It is a perspective view of the food packaging container which concerns on one Embodiment of this invention, Comprising: The state which removed the cover body from the container main body is shown. 同実施形態に係る食品用包装容器の説明図であって、（ａ）は、容器本体の平面図を示し、（ｂ）は、蓋体の平面図を示す。It is explanatory drawing of the food packaging container which concerns on the embodiment, Comprising: (a) shows the top view of a container main body, (b) shows the top view of a cover body. 同実施形態に係る食品用包装容器の容器本体の説明図であって、（ａ）は、図２（ａ）のＩ−Ｉ断面を示し、（ｂ）は、図２（ａ）のＩＩ−ＩＩ断面を示す。It is explanatory drawing of the container main body of the food packaging container which concerns on the same embodiment, Comprising: (a) shows the II cross section of Fig.2 (a), (b) is II- of Fig.2 (a). Section II is shown. 同実施形態に係る食品用包装容器の蓋体の説明図であって、（ａ）は、図２（ｂ）のＩＩＩ−ＩＩＩ断面を示し、（ｂ）は、図２（ｂ）のＩＶ−ＩＶ断面を示し、（ｃ）は、図２（ｂ）のＶ−Ｖ断面を示す。It is explanatory drawing of the cover body of the food packaging container which concerns on the embodiment, Comprising: (a) shows the III-III cross section of FIG.2 (b), (b) is IV- of FIG.2 (b). Section IV is shown, and FIG. 2C shows the section VV in FIG. 同実施形態に係る食品用包装容器の説明図であって、容器側鍔部と膨出部との間に間隙が形成された部分を含んだ食品用包装容器の部分断面図を示す。It is explanatory drawing of the food packaging container which concerns on the same embodiment , Comprising: The fragmentary sectional view of the food packaging container containing the part in which the gap | interval was formed between the container side collar part and the swelling part is shown. 同実施形態に係る食品用包装容器の説明図であって、容器側鍔部に対して突起部が当接した部分を含んだ食品用包装容器の部分断面図を示す。It is explanatory drawing of the food packaging container which concerns on the same embodiment, Comprising: The fragmentary sectional view of the food packaging container containing the part which the protrusion part contact | abutted with respect to the container side collar part is shown. 同実施形態に係る食品用包装容器の説明図であって、容器本体に蓋体を取り付けた状態における容器側鍔部及び蓋側鍔部の半断面図を示す。It is explanatory drawing of the food packaging container which concerns on the embodiment, Comprising: The half cross-sectional view of the container side collar part and the lid side collar part in the state which attached the cover body to the container main body is shown. 同実施形態に係る食品用包装容器の部分拡大断面図であって、平面視における角部での縦拡大断面図を示す。It is a partial expanded sectional view of the packaging container for foods concerning the embodiment, Comprising: The longitudinally expanded sectional view in the corner | angular part in planar view is shown. 従来の食品用包装容器の説明図であって、（ａ）は、周壁部の上端部に蓋本体部の外周端部が面接触するように構成された食品用包装容器の部分拡大断面図を示し、（ｂ）は、蓋体（蓋本体部）の外周端部を全周に亘って傾斜面又は容器本体の上端（傾斜面の基端）に接触させるように構成された食品用包装容器の部分拡大断面図を示す。It is explanatory drawing of the conventional food packaging container, Comprising: (a) is the partial expanded sectional view of the food packaging container comprised so that the outer peripheral end part of a lid | cover main-body part might surface-contact with the upper end part of a surrounding wall part. (B) is a food packaging container configured to bring the outer peripheral end of the lid (lid body) into contact with the inclined surface or the upper end of the container body (base end of the inclined surface) over the entire circumference. The partial expanded sectional view of is shown.

Explanation of symbols

１…食品用包装容器、１０…容器本体、２０…蓋体、１００…底部、１０１…凸条、１１０…周壁部、１１０ａ，１１０ｂ，１１０ｃ，１１０ｄ…壁部、１１１…起立部、１１２…貯液用凹部、１１５…フランジ部、１１６…容器側鍔部、１１７…垂下部、１１８…延出部、２００…蓋本体部、２０１…凸部、２０２…閉塞部、２０２ａ…天部、２０２ｂ…蓋周壁部、２０３…蓋側鍔部、２０３ａ…鍔本体部、２０３ｂ…鍔接続部、２１０…環状垂下部、２１１…第一垂下部、２１２…蓋側延出部、２１３…第二垂下部、２１４…係合凸部、２１５…余裕代、２２０…膨出部、Ｆ…食品、Ｐ１…中間当接位置（当接位置）、Ｐ２…角部当接位置（当接位置）、Ｇ…間隙、Ｓ…傾斜面 DESCRIPTION OF SYMBOLS 1 ... Food packaging container, 10 ... Container main body, 20 ... Cover body, 100 ... Bottom part, 101 ... Projection, 110 ... Peripheral wall part, 110a, 110b, 110c, 110d ... Wall part, 111 ... Standing part, 112 ... Storage Recessed part for liquid, 115 ... flange part, 116 ... container side flange part, 117 ... hanging part, 118 ... extension part, 200 ... lid body part, 201 ... convex part, 202 ... blocking part, 202a ... top part, 202b ... Lid peripheral wall part 203 ... lid side collar part 203a ... collar body part 203b ... collar connection part 210 ... annular hanging part 211 ... first hanging part 212 ... lid side extending part 213 ... second hanging part , 214 ... engaging convex part, 215 ... margin, 220 ... bulging part, F ... food, P1 ... intermediate contact position (contact position), P2 ... corner contact position (contact position), G ... Gap, S ... Inclined surface

Claims

Comprising a container body with its upper part open, and a lid for covering the upper portion of the container body,
The container body includes a bottom that can placed the food to support the food at top, and a formed peripheral wall so as to extend obliquely upward from the outer periphery of the bottom portion,
The peripheral wall portion includes an upright portion connected to an outer periphery of the bottom portion, and a flange portion connected to an upper end outer periphery of the upright portion,
The upright portion and the flange portion have an inclined surface that is a surface on the inner side of the lower portion,
The inclined surface belonging to the flange portion is formed at a smaller inclination angle than the inclined surface belonging to the standing portion,
The lid includes at least a bottom portion opposed to the cover body portion of the container body, and an annular depending portion extending downward from the outer periphery of the lid main body portion,
Said annular hanging portion can be fitted to the upper end of the peripheral wall portion of the container body, cracks covered by the lid upper part of the container body by fitting said outer,
The lid main body portion is formed with a plurality of convex portions spaced in the circumferential direction that protrude downward and can come into contact with the inclined surface belonging to the standing portion or the flange portion of the container main body ,
The standing portion of the container body is stored at a position inside the corresponding contact position so as to correspond to the contact position of the convex portion of the lid with respect to the inclined surface belonging to the standing portion or flange portion of the container body. A food packaging container in which a concave portion for food is formed.

The lid is bulging portion that bulges outward toward the annular suspended portion from between the projecting portions of the lid body portion is formed,
An annular suspended portion of the lid body fitted state to the peripheral wall portion of the container body, according to claim 1, gap for steam discharge is formed between said bulge portions the peripheral wall portion Food packaging container.

The container body and the lid body are formed in a substantially square shape in plan view,
The food container according to claim 1, wherein the lid has the convex portion formed in at least one of four corners in the substantially quadrangular shape .