JP2022088615A - Packaging container lid and packaging container - Google Patents

Packaging container lid and packaging container Download PDF

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JP2022088615A
JP2022088615A JP2022062185A JP2022062185A JP2022088615A JP 2022088615 A JP2022088615 A JP 2022088615A JP 2022062185 A JP2022062185 A JP 2022062185A JP 2022062185 A JP2022062185 A JP 2022062185A JP 2022088615 A JP2022088615 A JP 2022088615A
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side wall
flange
lid
protruding
corner
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JP7292624B2 (en
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修也 川島
Shuya Kawashima
哲也 宮崎
Tetsuya Miyazaki
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Chuo Kagaku Co Ltd
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Chuo Kagaku Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging

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Abstract

PROBLEM TO BE SOLVED: To provide a packaging container lid that an operator can easily attach to a container body with a minimum force and for the shortest work time.
SOLUTION: The lid includes a top surface portion 1, a side wall step portion 2 that continuously hangs downward from a peripheral edge of the top surface portion 1, a side wall portion 3 that spreads continuously downward and inclines from a lower end edge of the side wall step portion 2, a flange step portion 4 that continuously inclines upward from a lower end edge of the side wall portion 3, a flat flange portion 5 that extends outward continuously from an upper end edge of the flange step portion 4, and a fitting wall portion 6 that continuously hangs downward from an outer peripheral edge of the flange portion 5. The side wall portion 3 has a convex protrusion portion 33 that protrudes outward and gently inclines from a first side wall portion 31 and a second side wall portion 32 adjacent to a corner portion, an upper end portion of the protrusion portion 33 is located between an upper end edge and the lower end edge of the side wall portion 3, and a lower end portion of the protrusion portion 33 is located outside an inner peripheral edge of the flange portion 5, and an end face shape from the upper end portion to the lower end portion of the protrusion 33 is linear.
SELECTED DRAWING: Figure 2
COPYRIGHT: (C)2022,JPO&INPIT

Description

本発明は、例えば食品を載置する容器本体に装着する包装用容器の蓋体及び包装用容器に関する。 The present invention relates to, for example, a lid of a packaging container and a packaging container to be attached to a container body on which food is placed.

従来から、スーパーマーケットやコンビニエンスストアで販売される弁当や惣菜等の食品を収容する包装用容器の蓋体は、食品の種類や容器本体の形状を考慮して選択されていた。しかしながら、蓋体が変わると、容器本体への装着の仕方（蓋体の閉め方）も工夫しなければならなかった。すなわち、蓋体毎の閉め方によっては、蓋体が完全に閉まらなかったり、蓋体や容器本体が折れ曲がったり破損したりしてしまうおそれがあった。 Conventionally, the lid of a packaging container for storing foods such as lunch boxes and prepared foods sold in supermarkets and convenience stores has been selected in consideration of the type of food and the shape of the container body. However, when the lid was changed, it was necessary to devise a method of attaching it to the container body (how to close the lid). That is, depending on how each lid is closed, there is a risk that the lid may not be completely closed, or the lid or the container body may be bent or damaged.

また、包装用容器の蓋体の上に、別の包装用容器の容器保体を段積みするものもある。例えば、天面部の外縁から下方に向かう周壁部の一部に外方かつ円弧状に膨らむ丸隅部と、天面部と丸隅部とが交わる角部付近に内方かつ凹曲面状に凹んだ凹曲面部とを備えた蓋体により、段積み時に丸隅部と凹曲面部とが一体的に機能して上下方向の荷重に対する蓋体の強度を高める技術が開示されている（特許文献１参照。）。 In addition, there is also a case in which a container holder of another packaging container is stacked on the lid of the packaging container. For example, a round corner that swells outward and in an arc shape on a part of the peripheral wall that goes downward from the outer edge of the top surface, and an inward and concave curved surface near the corner where the top surface and the round corner meet. A technique is disclosed in which a round corner portion and a concave curved surface portion function integrally with a lid body provided with a concave curved surface portion during stacking to increase the strength of the lid body against a load in the vertical direction (Patent Document 1). reference.).

特開２０１８－１４０７８７号公報Japanese Unexamined Patent Publication No. 2018-140787

しかしながら、特許文献１には、作業者による上記蓋体の閉め方について記載されていない。すなわち、上記蓋体はフランジ部の外縁から垂下する垂下面部の所定の位置に形成された係合部を容器本体に外嵌合させるものであり、作業者が上記蓋体のどこに力を加えて容器本体に装着するのか不明であることから、蓋体の閉め方によっては従来と同じ問題が生じたり、蓋体を閉めるまでに時間がかかったりしてしまうことが懸念される。 However, Patent Document 1 does not describe how to close the lid by an operator. That is, the lid body externally fits the engaging portion formed at a predetermined position of the hanging lower surface portion hanging from the outer edge of the flange portion to the container body, and the operator applies a force to any part of the lid body. Since it is unknown whether it is attached to the container body, there is a concern that the same problem as before may occur depending on how the lid is closed, or it may take time to close the lid.

特に、特許文献１のような天面が高い蓋体では、加圧の度合いや場所が蓋体に影響を与えやすい。例えば、天面部は面積が広いため作業者が加圧しやすいものの、閉じ具合によっては天面部のみならず他の部位も折れ曲がったり破損したりしやすい。また、フランジ部は容器本体に接するため作業者が把持しやすいものの、係合部毎に加圧しなければ閉まりにくい。このような課題に対し、発明者等は創意工夫の末、段積み時かつ装着時に折れ曲がりかつ破損しにくく、容器本体に装着しやすい蓋体の構造に辿り着いた。 In particular, in a lid having a high top surface as in Patent Document 1, the degree and location of pressurization tend to affect the lid. For example, since the top surface portion has a large area, it is easy for the operator to pressurize it, but depending on the closing condition, not only the top surface portion but also other parts are easily bent or damaged. Further, although the flange portion is in contact with the container body and is easy for the operator to grasp, it is difficult to close the flange portion unless pressure is applied to each engaging portion. In response to such problems, the inventors have arrived at a structure of a lid that is easy to be attached to the container body because it is not easily bent and damaged when stacked and attached, as a result of ingenuity.

そこで、本発明の目的は、別の容器本体の段積みに耐える強度に加え、作業者による最低限の力かつ最短の工数で容器本体に装着しやすい包装用容器の蓋体及び包装用容器を提供することにある。 Therefore, an object of the present invention is to provide a lid and a packaging container for a packaging container that can be easily attached to the container body with the minimum force and the shortest man-hours by an operator, in addition to the strength to withstand the stacking of another container body. To provide.

すなわち、本発明における包装用容器の蓋体は、天面部と、上記天面部の周端縁より下側に拡がって傾斜しており角部分を有する側壁部と、上記側壁部の下端縁より外側に延出しているフランジ部と、上記フランジ部の外周端縁より下側に垂下している嵌合壁部とを備え、上記側壁部は、上記角部分に隣接する第１側壁部及び第２側壁部より外側に突出かつ緩やかに傾斜している凸状の突出部を有し、上記突出部の上端部は上記側壁部の上端縁と下端縁との間に位置し、上記突出部の下端部は上記フランジ部の内周端縁より外側に位置し、上記突出部の上端部から下端部までの端面形状は、直線状であることを特徴とする。 That is, the lid of the packaging container in the present invention has a top surface portion, a side wall portion that extends downward from the peripheral edge of the top surface portion and has a corner portion, and an outer side from the lower end edge of the side wall portion. A flange portion extending to the surface and a fitting wall portion hanging below the outer peripheral edge of the flange portion are provided, and the side wall portion includes a first side wall portion and a second side wall portion adjacent to the corner portion. It has a convex protrusion that protrudes outward from the side wall and is gently inclined, and the upper end of the protrusion is located between the upper edge and the lower edge of the side wall, and the lower end of the protrusion is located. The portion is located outside the inner peripheral edge of the flange portion, and the end face shape from the upper end portion to the lower end portion of the protruding portion is characterized by being linear.

また、上記側壁部は、上記天面部の周端縁から下向きに垂下しており周方向に点在する角部分を有する側壁段差部を含み、上記側壁段差部の下端縁から下向きに拡がって傾斜しており、上記側壁段差部は、上記角部分に傾斜している隅切り部を有し、上記隅切り部と上記突出部との傾斜角は、略同等で、上記隅切り部の下端部と上記突出部の上端部とは、略面一状に連続していることが望ましい。 Further, the side wall portion includes a side wall step portion that hangs downward from the peripheral edge of the top surface portion and has corner portions scattered in the circumferential direction, and extends downward from the lower end edge of the side wall step portion and inclines. The side wall step portion has a corner cut portion that is inclined to the corner portion, and the inclination angles of the corner cut portion and the protrusion portion are substantially the same, and the lower end portion of the corner cut portion is formed. It is desirable that the upper end portion of the protrusion and the upper end portion thereof are substantially flush with each other.

また、上記包装用容器の蓋体は、上記側壁部の下端縁から上向きに傾斜しているフランジ段差部をさらに備え、上記フランジ部が、上記フランジ段差部の上端縁から外向きに延出しており、上記突出部の下端部が、上記フランジ段差部を超えて上記フランジ部の内周端縁より外側に位置していることが望ましい。 Further, the lid of the packaging container further includes a flange step portion that is inclined upward from the lower end edge of the side wall portion, and the flange portion extends outward from the upper end edge of the flange step portion. Therefore, it is desirable that the lower end portion of the protruding portion is located outside the inner peripheral edge of the flange portion beyond the flange step portion.

また、上記嵌合壁部は、上記突出部の下端部に近接する位置に幅広な嵌合部を有することが望ましい。 Further, it is desirable that the fitting wall portion has a wide fitting portion at a position close to the lower end portion of the protruding portion.

さらに、本発明における包装用容器は、上記包装用容器の蓋体と、上記蓋体の嵌合部と外嵌合する容器本体とを備えたことを特徴とする。 Further, the packaging container in the present invention is characterized by including a lid of the packaging container and a container body that is externally fitted to the fitting portion of the lid.

本発明による包装用容器の蓋体は、別の容器本体の段積みに耐える強度に加え、作業者による最低限の力かつ最短の工数で容器本体に装着しやすい効果が期待できる。すなわち、作業者の手の平及び指先から天面部に加えられた最低限の外力が、突出部を介してフランジ部に伝わりやすいため、折れ曲がったり破損したりすることなく容器本体に嵌合しやすく、容易に蓋体を装着することが期待できる。 The lid of the packaging container according to the present invention can be expected to have the effect of being easily attached to the container body with the minimum force and the shortest man-hours by the operator, in addition to the strength to withstand the stacking of another container body. That is, since the minimum external force applied to the top surface from the palm and fingertips of the operator is easily transmitted to the flange through the protrusion, it is easy to fit into the container body without bending or breaking. It can be expected that the lid will be attached to the surface.

本発明の一実施形態における容器本体に対して蓋体が上方に位置している包装用容器の斜視図である。It is a perspective view of the packaging container in which the lid is located above the container body in one embodiment of the present invention. 上記蓋体の平面図である。It is a top view of the said lid. 上記蓋体の角部分の拡大正面斜視図である。It is an enlarged front perspective view of the corner part of the said lid body. 上記蓋体の図２に示すＡ－Ａ部分の拡大端面図である。It is an enlarged end view of the AA portion shown in FIG. 2 of the lid body. 本発明の一実施形態における別の蓋体の平面図である。It is a top view of another lid body in one Embodiment of this invention. 上記蓋体の角部分の拡大正面斜視図である。It is an enlarged front perspective view of the corner part of the said lid body.

以下、図１及び図４を参照しつつ、本発明の一実施形態における包装用容器（以下、「本包装用容器」ともいう。）について説明する。
なお、同図において、複数個存在する同一の部位については、一つの部位のみに付番し、重複する部位については省略することがある。説明の便宜上、所定の部位や引き出し線を破線や想像線（二点鎖線）で示す。 Hereinafter, the packaging container (hereinafter, also referred to as “the present packaging container”) according to the embodiment of the present invention will be described with reference to FIGS. 1 and 4.
In the figure, for the same multiple parts, only one part may be numbered, and the overlapping parts may be omitted. For convenience of explanation, predetermined parts and leader lines are shown by broken lines or imaginary lines (dashed-dotted lines).

＜包装用容器の概要＞
図１に示すように、本包装用容器Ｃは、平面視で略長方形状かつ箱型ドーム状の蓋体Ｃ１と、平面視で蓋体Ｃ１と同形状かつ蓋体Ｃ１で覆う容器本体Ｃ２とを備えている。
なお、蓋体Ｃ１及び容器本体Ｃ２の平面視の形状は、正方形・円形・楕円形でもよい。蓋体Ｃ１は、半球型ドーム状でもよい。蓋体Ｃ１及び容器本体Ｃ２のサイズは、限定しない。本包装用容器Ｃに収容する食品は、寿司・サラダ・弁当・惣菜等であり、限定しない。 <Overview of packaging container>
As shown in FIG. 1, the packaging container C includes a substantially rectangular and box-shaped dome-shaped lid C1 in a plan view, and a container body C2 having the same shape as the lid C1 and covered with the lid C1 in a plan view. It is equipped with.
The shapes of the lid C1 and the container body C2 in a plan view may be square, circular, or elliptical. The lid C1 may have a hemispherical dome shape. The size of the lid C1 and the container body C2 is not limited. The foods contained in the packaging container C are sushi, salads, lunch boxes, prepared foods, etc., and are not limited.

＜蓋体の概要＞
図１に示すように、蓋体Ｃ１は、天面部１と、天面部１の周端縁から連続で下向きに垂下している側壁段差部２を含み、側壁段差部２の下端縁から連続で下向きに拡がって傾斜している側壁部３と、側壁部３の下端縁から連続で上向きに傾斜しているフランジ段差部４と、フランジ段差部４の上端縁から連続で外向きに延出している平面状のフランジ部５と、フランジ部５の外周端縁から連続で下側に垂下している嵌合壁部６とを備えている。
なお、天面部１・側壁段差部２・側壁部３・フランジ段差部４・フランジ部５の平面視での形状は、蓋体Ｃ１と同等でも、正方形・円形・楕円形等でもよく、それぞれ異なっていてもよい。天面部１・側壁段差部２・側壁部３・フランジ段差部４・フランジ部５のサイズや寸法は、限定しない。 <Outline of the lid>
As shown in FIG. 1, the lid C1 includes a top surface portion 1 and a side wall step portion 2 that continuously hangs downward from the peripheral edge of the top surface portion 1, and is continuous from the lower end edge of the side wall step portion 2. A side wall portion 3 that extends downward and is inclined, a flange step portion 4 that is continuously inclined upward from the lower end edge of the side wall portion 3, and a flange step portion 4 that continuously extends outward from the upper end edge of the flange step portion 4. It includes a flat flange portion 5 and a fitting wall portion 6 that continuously hangs downward from the outer peripheral edge of the flange portion 5.
The shapes of the top surface portion 1, the side wall step portion 2, the side wall portion 3, the flange step portion 4, and the flange portion 5 in a plan view may be the same as those of the lid C1, or may be square, circular, elliptical, or the like, and are different from each other. May be. The size and dimensions of the top surface portion 1, the side wall step portion 2, the side wall portion 3, the flange step portion 4, and the flange portion 5 are not limited.

＜容器本体の概要＞
図１に示すように、容器本体Ｃ２は、食品を載置する付番しない底部と、上記底部を容器を置く什器などの接地面より高くするために上記底部の周端縁の角部分に該当する位置から連続して下向きに設けられた凹状の付番しない脚部と、上記底部の周端縁及び上記脚部の外周端縁から外向きに連続して延出している付番しない本体フランジ部と、蓋体Ｃ１と嵌合するために本体フランジ部の周端縁に設けられた付番しない嵌合部とを備えている。 <Overview of the container body>
As shown in FIG. 1, the container body C2 corresponds to an unnumbered bottom on which food is placed and a corner portion of the peripheral edge of the bottom in order to make the bottom higher than the ground surface of furniture or the like on which the container is placed. Concave unnumbered legs that are continuously provided downward from the position to be used, and unnumbered main body flanges that continuously extend outward from the peripheral edge of the bottom and the outer peripheral edge of the leg. It is provided with a portion and an unnumbered fitting portion provided on the peripheral edge of the main body flange portion for fitting with the lid body C1.

＜天面部の説明＞
図２に示すように、天面部１は、長手辺部１１と、短手辺部１２と、長手辺部１１及び短手辺部１２と連続している天面角部１３とを有する。
なお、長手辺部１１及び短手辺部１２は、直線状でも曲線状でもよい。天面角部１３の角度は、長手辺部１１及び短手辺部１２に対して４５°傾いていても、それ以外の角度で傾いていてもよい。 <Explanation of the top surface>
As shown in FIG. 2, the top surface portion 1 has a longitudinal side portion 11, a short side portion 12, and a top surface corner portion 13 continuous with the longitudinal side portion 11 and the short side portion 12.
The long side portion 11 and the short side portion 12 may be linear or curved. The angle of the top angle portion 13 may be tilted by 45 ° with respect to the longitudinal side portion 11 and the lateral side portion 12, or may be tilted at any other angle.

＜側壁段差部の説明＞
図２に示すように、側壁段差部２は、別の包装用容器の容器本体を蓋体Ｃ１上に載置するときに、上記容器本体の脚部の内側に納まる部位であり、第１側壁段差部に該当する長手側壁段差部２１と、第２側壁段差部に該当する短手側壁段差部２２と、長手側壁段差部２１と短手側壁段差部２２とで形成された周方向に点在する角部分に該当する位置に傾斜状に形成された平面状の隅切り部２３とを有する。側壁段差部２の上端縁は、天面部１の周端縁に該当する。
なお、側壁段差部２の高さは、限定しない。長手側壁段差部２１及び短手側壁段差部２２は、平面状でも湾曲状でもよい。 <Explanation of the step on the side wall>
As shown in FIG. 2, the side wall step portion 2 is a portion that fits inside the leg portion of the container body when the container body of another packaging container is placed on the lid C1 and is the first side wall. The longitudinal side wall step portion 21 corresponding to the step portion, the short side wall step portion 22 corresponding to the second side wall step portion, and the longitudinal side wall step portion 21 and the short side wall step portion 22 are scattered in the circumferential direction. It has a flat corner cut portion 23 formed in an inclined shape at a position corresponding to the corner portion to be formed. The upper end edge of the side wall step portion 2 corresponds to the peripheral edge of the top surface portion 1.
The height of the side wall step portion 2 is not limited. The long side wall step portion 21 and the short side wall step portion 22 may be flat or curved.

＜側壁部の説明＞
図２に示すように、側壁部３は、第１側壁部に該当する平面状の長手側壁部３１と、第２側壁部に該当する短手側壁部３２と、長手側壁部３１と短手側壁部３２とで形成された角部分に該当する位置に長手側壁部３１及び短手側壁部３２より外側に突出かつ緩やかに傾斜している凸状の突出部３３を有する。側壁部３の上端縁は、側壁段差部２の上端縁に該当する。
なお、側壁部３は、垂直に対して５～３０°傾斜していればよく、７～２５°傾斜していればさらに好ましく、１０～２５°傾斜していればより好ましい。長手側壁部３１及び短手側壁部３２は、平面状でも湾曲状でもよい。 <Explanation of side wall>
As shown in FIG. 2, the side wall portion 3 includes a planar longitudinal side wall portion 31 corresponding to the first side wall portion, a short side wall portion 32 corresponding to the second side wall portion, and a longitudinal side wall portion 31 and a short side wall portion. A convex protrusion 33 that protrudes outward from the longitudinal side wall portion 31 and the lateral side wall portion 32 and is gently inclined is provided at a position corresponding to the corner portion formed by the portion 32. The upper end edge of the side wall portion 3 corresponds to the upper end edge of the side wall step portion 2.
The side wall portion 3 may be tilted by 5 to 30 ° with respect to the vertical direction, more preferably 7 to 25 °, and even more preferably 10 to 25 °. The longitudinal side wall portion 31 and the lateral side wall portion 32 may be flat or curved.

＜フランジ段差部の説明＞
図１に示すように、フランジ段差部４は、側壁部３とフランジ部５との間に所定の高さ及び幅の溝部分を形成するものであり、側壁部３の下端縁から上向きに傾斜している。
この構成によれば、フランジ段差部４と嵌合壁部６とが容器本体Ｃ２の本体フランジ部を挟むため、容器本体Ｃ２に対する蓋体Ｃ１の嵌合力を高めることができる。 <Explanation of flange step portion>
As shown in FIG. 1, the flange step portion 4 forms a groove portion having a predetermined height and width between the side wall portion 3 and the flange portion 5, and is inclined upward from the lower end edge of the side wall portion 3. is doing.
According to this configuration, since the flange step portion 4 and the fitting wall portion 6 sandwich the main body flange portion of the container main body C2, the fitting force of the lid C1 with respect to the container main body C2 can be increased.

＜フランジ部の説明＞
図１に示すように、フランジ部５は、蓋体Ｃ１を容器本体Ｃ２に装着したときに、本体フランジ部と面する部位である。
図２に示すように、フランジ部５は、フランジ段差部４との境界でもあるフランジ内周端縁５１と、嵌合壁部６との境界でもあるフランジ外周端縁５２とを有する。 <Explanation of flange>
As shown in FIG. 1, the flange portion 5 is a portion facing the main body flange portion when the lid body C1 is attached to the container main body C2.
As shown in FIG. 2, the flange portion 5 has a flange inner peripheral edge 51 which is also a boundary with the flange step portion 4 and a flange outer peripheral edge 52 which is also a boundary with the fitting wall portion 6.

＜隅切り部の説明＞
図３に示すように、隅切り部２３は、平面視で天面角部１３の周端縁の一部である隅切り上端部２３ａと、長手側壁段差部２１及び短手側壁段差部２２との境界部分であり下方向に傾斜している直線状の隅切り側部２３ｂと、隅切り側部２３ｂの各々が連続して円弧状に形成された隅切り下端部２３ｃとを有する。換言すれば、隅切り部２３は、隅切り上端部２３ａと、隅切り側部２３ｂと、隅切り下端部２３ｃとで略半円形状かつ平面状に形成されている。隅切り上端部２３ａから隅切り下端部２３ｃまでの端面形状は、直線状である。
この構成によれば、天面角部１３から伝わってきた外力が、隅切り上端部２３ａから隅切り側部２３ｂを経由して隅切り下端部２３ｃに集約されやすくなることが期待できる。
なお、隅切り側部２３ｂは、湾曲状でもよい。隅切り下端部２３ｃは、直線状でもよい。 <Explanation of corner cutting part>
As shown in FIG. 3, the corner cutting portion 23 includes a corner cutting upper end portion 23a which is a part of the peripheral edge of the top surface corner portion 13 in a plan view, a longitudinal side wall step portion 21, and a lateral side wall step portion 22. It has a linear corner cutting side portion 23b which is a boundary portion of the above and is inclined downward, and a corner cutting lower end portion 23c in which each of the corner cutting side portions 23b is continuously formed in an arc shape. In other words, the corner cutting portion 23 is formed in a substantially semicircular shape and a planar shape by the corner cutting upper end portion 23a, the corner cutting side portion 23b, and the corner cutting lower end portion 23c. The end face shape from the corner cutting upper end portion 23a to the corner cutting lower end portion 23c is linear.
According to this configuration, it can be expected that the external force transmitted from the top corner portion 13 can be easily collected from the corner cutting upper end portion 23a to the corner cutting lower end portion 23c via the corner cutting side portion 23b.
The corner cutting side portion 23b may be curved. The lower end portion 23c of the corner cut may be linear.

＜突出部の説明＞
図３に示すように、突出部３３は、長手側壁部３１及び短手側壁部３２との境界部分であり下向きに傾斜している直線状の突出第１境界部３３ａと、突出第１境界部３３ａから連続して外向きに平面状に形成された正面視で三角形状の突出側部３３ｂと、突出側部３３ｂの各々との境界部分であり突出第１境界部３３ａより緩やかに下向きに傾斜している直線状の突出第２境界部３３ｃと、突出第２境界部３３ｃの各々から連続して外向きにアーチ状に形成された正面視で長方形状の突出前部３３ｄと、突出前部３３ｄの一部であるアーチ状の上端部分で形成された突出上端部３３ｅと、突出側部３３ｂの一部である直線状の下端部分及び突出前部３３ｄの一部であるアーチ状の下端部分である突出前下端部３３ｆａで形成された突出下端部３３ｆとを有する。突出上端部３３ｅは、側壁部３の上端縁と下端縁との間に位置し、詳細には側壁段差部２の下端縁に位置し、突出下端部３３ｆは、フランジ部５に位置している。突出上端部３３ｅから突出下端部３３ｆまでの端面形状は、直線状である。換言すれば、突出部３３の正面視は、突出上端部３３ｅから突出下端部３３ｆに渡り、突出第１境界部３３ａ、突出側部３３ｂ、突出第２境界部３３ｃ、及び突出前部３３ｄが連続して、突出下端部３３ｆに近づくほど長手側壁部３１及び短手側壁部３２より外方向に張り出している。また、突出前部３３ｄの幅に特に制限はないが、７．０～１３．０ｍｍであればよく、９．０～１１．０ｍｍであればより好ましく、また、７．０～１５．０ｍｍであってもよいし、８．０～１４．０ｍｍであってもよいし、９．０～１４．０ｍｍであってもよい。突出前下端部３３ｆａの曲率半径は、６．５～１０ｍｍでもよく、好ましくは７．５ｍｍ～９ｍｍであり、より好ましくは７．５ｍｍ～８．５ｍｍであり、突出上端部３３ｅの曲率半径より大きいことから、突出部３３は末広がり状に形成されている。
この構成によれば、隅切り下端部２３ｃから伝わってきた外力が、突出上端部３３ｅから突出側部３３ｂ及び突出前部３３ｄを経由して突出下端部３３ｆに伝わりやすくなることが期待できる。詳細には、突出前下端部３３ｆａがフランジ部５の平坦部分に張り出していることにより、閉蓋の際に天面部１に加わる力がダイレクトにフランジ部５の四隅に伝わり、上記四隅の直下に位置する嵌合壁部６による嵌合がスムーズに行われる効果を期待できる。 <Explanation of protrusions>
As shown in FIG. 3, the protruding portion 33 is a boundary portion between the longitudinal side wall portion 31 and the lateral side wall portion 32, and is a linear protruding first boundary portion 33a that is inclined downward and a protruding first boundary portion. It is a boundary between the triangular protruding side portion 33b and each of the protruding side portions 33b, which is continuously formed in a planar shape outward from 33a, and is gently inclined downward from the protruding first boundary portion 33a. A linear protruding second boundary portion 33c, a rectangular protruding front portion 33d in front view formed in a continuous outward arch shape from each of the protruding second boundary portions 33c, and a protruding front portion. A protruding upper end portion 33e formed by an arch-shaped upper end portion that is a part of 33d, a linear lower end portion that is a part of a protruding side portion 33b, and an arch-shaped lower end portion that is a part of a protruding front portion 33d. It has a protruding lower end portion 33f formed by a protruding front lower end portion 33fa. The protruding upper end portion 33e is located between the upper end edge and the lower end edge of the side wall portion 3, specifically, is located at the lower end edge of the side wall step portion 2, and the protruding lower end portion 33f is located at the flange portion 5. .. The shape of the end face from the protruding upper end portion 33e to the protruding lower end portion 33f is linear. In other words, the front view of the protruding portion 33 extends from the protruding upper end portion 33e to the protruding lower end portion 33f, and the protruding first boundary portion 33a, the protruding side portion 33b, the protruding second boundary portion 33c, and the protruding front portion 33d are continuous. Then, as it approaches the protruding lower end portion 33f, it projects outward from the longitudinal side wall portion 31 and the lateral side wall portion 32. The width of the protruding front portion 33d is not particularly limited, but may be 7.0 to 13.0 mm, more preferably 9.0 to 11.0 mm, and 7.0 to 15.0 mm. It may be 8.0 to 14.0 mm, or it may be 9.0 to 14.0 mm. The radius of curvature of the protrusion front lower end 33fa may be 6.5 to 10 mm, preferably 7.5 mm to 9 mm, more preferably 7.5 mm to 8.5 mm, and larger than the radius of curvature of the protrusion upper end 33e. Therefore, the protruding portion 33 is formed in a divergent shape.
According to this configuration, it can be expected that the external force transmitted from the corner cutting lower end portion 23c is easily transmitted from the protruding upper end portion 33e to the protruding lower end portion 33f via the protruding side portion 33b and the protruding front portion 33d. Specifically, since the protruding front lower end portion 33fa projects to the flat portion of the flange portion 5, the force applied to the top surface portion 1 at the time of closing the lid is directly transmitted to the four corners of the flange portion 5, and directly below the four corners. The effect of smooth fitting by the positioned fitting wall portion 6 can be expected.

＜隅切り部と突出部との関係の説明＞
図４に示すように、隅切り部２３の隅切り下端部２３ｃと突出部３３の突出上端部３３ｅとは、略面一状に連続している。天面部１に対する隅切り部２３の傾斜角と突出部３３の傾斜角とは、略同等で、垂直に対して３０～５０°である。
なお、略面一状に連続している部分は、点状でも所定の幅を有する線状でもよい。換言すれば、略面一状に連続している部分を除く隅切り下端部２３ｃと突出上端部３３ｅとの境界部分は、段差状でもよい。
この構成によれば、隅切り下端部２３ｃから伝わってきた外力が、突出上端部３３ｅにより伝わりやすくなることが期待できる。 <Explanation of the relationship between the corner cut part and the protruding part>
As shown in FIG. 4, the corner cutting lower end portion 23c of the corner cutting portion 23 and the protruding upper end portion 33e of the protruding portion 33 are substantially flush with each other. The inclination angle of the corner cutting portion 23 with respect to the top surface portion 1 and the inclination angle of the protruding portion 33 are substantially the same, and are 30 to 50 ° with respect to the vertical direction.
The portion that is continuous in a substantially uniform surface may be a dot shape or a linear shape having a predetermined width. In other words, the boundary portion between the corner cutting lower end portion 23c and the protruding upper end portion 33e, excluding the portion that is continuous in a substantially uniform surface, may be stepped.
According to this configuration, it can be expected that the external force transmitted from the corner cutting lower end portion 23c is easily transmitted by the protruding upper end portion 33e.

＜突出部とフランジ段差部との関係の説明＞
図３に示すように、突出下端部３３ｆの突出前下端部３３ｆａは、フランジ段差部４を超えて、フランジ部５のフランジ内周端縁５１より外側に位置している。
なお、突出前下端部３３ｆａの頂点がフランジ外周端縁５２に達していても、換言すれば、突出前下端部３３ｆａの頂点とフランジ外周端縁５２との距離がゼロでも、突出前下端部３３ｆａが頂点を除いてフランジ部５の平坦部分に張り出している部分を有する形状（例えば、アーチ状）であれば、天面部１に加わる力がフランジ部５の四隅に伝わらないことはないが、フランジ内周端縁５１からフランジ外周端縁５２までの距離と突出前下端部３３ｆａの頂点からフランジ外周端縁５２までの距離との比率は、１０：１～１０：９でもよく、好ましくは５：１～５：４であり、より好ましくは３：１～３：２であり、上記比率が１０：１より小さくても１０：９より大きくても突出前下端部３３ｆａに伝わった外力が嵌合壁部６に伝わりにくくなるおそれがある。突出前下端部３３ｆａの頂点からフランジ外周端縁５２までの距離は特に制限はないが、１．５～５ｍｍでもよく、好ましくは２．０～３．５ｍｍである。１．５ｍｍより小さいと蓋を閉めた際に突出前下端部３３ｆａの頂点が浮いてフランジ部との間に隙間が発生してしまいデザイン性を損なってしまう。また、５ｍｍを超えると外力が伝わりにくくなるおそれがある。 <Explanation of the relationship between the protrusion and the stepped flange>
As shown in FIG. 3, the protruding front lower end portion 33fa of the protruding lower end portion 33f is located outside the flange inner peripheral end edge 51 of the flange portion 5 beyond the flange step portion 4.
Even if the apex of the protruding front lower end portion 33fa reaches the flange outer peripheral edge 52, in other words, even if the distance between the apex of the protruding front lower end portion 33fa and the flange outer peripheral end edge 52 is zero, the protruding front lower end portion 33fa. If has a shape (for example, an arch shape) having a portion protruding from the flat portion of the flange portion 5 except for the apex, the force applied to the top surface portion 1 may not be transmitted to the four corners of the flange portion 5, but the flange. The ratio of the distance from the inner peripheral edge 51 to the flange outer peripheral edge 52 and the distance from the apex of the protruding front lower end 33fa to the flange outer peripheral edge 52 may be 10: 1 to 10: 9, preferably 5 :. It is 1 to 5: 4, more preferably 3: 1 to 3: 2, and even if the ratio is smaller than 10: 1 or larger than 10: 9, the external force transmitted to the protruding front lower end portion 33fa is fitted. It may be difficult to transmit to the wall portion 6. The distance from the apex of the protruding front lower end 33fa to the flange outer peripheral edge 52 is not particularly limited, but may be 1.5 to 5 mm, preferably 2.0 to 3.5 mm. If it is smaller than 1.5 mm, when the lid is closed, the apex of the protruding front lower end portion 33fa floats and a gap is generated between the protruding front lower end portion 33fa and the flange portion, which impairs the design. Further, if it exceeds 5 mm, it may be difficult to transmit an external force.

＜嵌合壁部の説明＞
図１に示すように、嵌合壁部６は、容器本体Ｃ２のフランジ部に対して外嵌合するものである。
図２に示すように、嵌合壁部６は、長手嵌合壁部６１と、短手嵌合壁部６２と、長手嵌合壁部６１及び短手嵌合壁部６２とで形成された周方向に点在する角部分に該当する位置に隅切られた隅切り嵌合壁部６３とを有する。
図３に示すように、長手嵌合壁部６１、短手嵌合壁部６２、及び隅切り嵌合壁部６３は、突出下端部３３ｆに近接する位置に、それぞれ幅広な嵌合部６１ａ・６２ａ・６３ａを有する。換言すれば、嵌合部６１ａ・６２ａ・６３ａは、突出下端部３３ｆを囲むように嵌合壁部６に面状に設けられている。嵌合部６１ａ・６２ａの幅は、突出下端部３３ｆの幅より広く、嵌合部６３ａの幅は、少なくとも突出前下端部３３ｆａの幅より広い。
なお、嵌合部６１ａ、６２ａ、及び６３ａの幅は、それぞれ同じでも異なっていてもよく、特に制限はないが１０～２８ｍｍであれば好ましく、１８～２５ｍｍであればより好ましい。また、長手嵌合壁部６１に形成される嵌合部６１ａより、短手嵌合壁部６２に形成される嵌合部６２ａのほうが長いほうが好ましい。
この構成によれば、突出下端部３３ｆの形状に沿うように設けられた嵌合部６１ａ・６２ａ・６３ａに外力が伝わりやすいため、容器本体に嵌合しやすくなることが期待できる。 <Explanation of fitting wall>
As shown in FIG. 1, the fitting wall portion 6 is externally fitted to the flange portion of the container body C2.
As shown in FIG. 2, the fitting wall portion 6 is formed of a longitudinal fitting wall portion 61, a short fitting wall portion 62, a longitudinal fitting wall portion 61, and a short fitting wall portion 62. It has a corner-cut fitting wall portion 63 cut into corners at positions corresponding to corner portions scattered in the circumferential direction.
As shown in FIG. 3, the longitudinal fitting wall portion 61, the short fitting wall portion 62, and the corner cutting fitting wall portion 63 are located close to the protruding lower end portion 33f, respectively, with wide fitting portions 61a. It has 62a and 63a. In other words, the fitting portions 61a, 62a, and 63a are provided on the fitting wall portion 6 in a planar shape so as to surround the protruding lower end portion 33f. The width of the fitting portions 61a and 62a is wider than the width of the protruding lower end portion 33f, and the width of the fitting portion 63a is at least wider than the width of the protruding front lower end portion 33fa.
The widths of the fitting portions 61a, 62a, and 63a may be the same or different, and are not particularly limited, but are preferably 10 to 28 mm, and more preferably 18 to 25 mm. Further, it is preferable that the fitting portion 62a formed on the short fitting wall portion 62 is longer than the fitting portion 61a formed on the longitudinal fitting wall portion 61.
According to this configuration, since the external force is easily transmitted to the fitting portions 61a, 62a, 63a provided along the shape of the protruding lower end portion 33f, it can be expected that the fitting portion is easily fitted to the container body.

なお、本実施形態における蓋体Ｃ１及び容器本体Ｃ２は、例えば真空成型、熱板圧空成型、真空圧空成型、両面真空成型等のシート成型で、合成樹脂シートを熱成型することにより形成されてもよい。合成樹脂シートとしては、例えば、ポリエチレンテレフタレート等のポリエステル系樹脂、ポリスチレン等のスチレン系樹脂、ポリプロピレン等のオレフィン系樹脂で、単層や多層のシートを使用してもよい。樹脂としては、例えば、発泡樹脂を使用すれば、軽量かつ断熱性があり好ましい。さらに、シートの表面または裏面を合成樹脂フィルムで覆ってもよく、表面を覆った場合は印刷を施してもよい。合成樹脂シートの厚みは特に制限はないが、０．２５～０．４５ｍｍであればよい。 The lid C1 and the container body C2 in the present embodiment may be formed by thermoforming a synthetic resin sheet by, for example, vacuum forming, hot plate pressure forming, vacuum forming, double-sided vacuum forming, or the like. good. As the synthetic resin sheet, for example, a polyester resin such as polyethylene terephthalate, a styrene resin such as polystyrene, or an olefin resin such as polypropylene may be used, and a single-layer or multi-layer sheet may be used. As the resin, for example, it is preferable to use a foamed resin because it is lightweight and has heat insulating properties. Further, the front surface or the back surface of the sheet may be covered with a synthetic resin film, and when the front surface is covered, printing may be performed. The thickness of the synthetic resin sheet is not particularly limited, but may be 0.25 to 0.45 mm.

次に、図５及び図６を参照しつつ、本発明の一実施形態における別の包装用容器の蓋体について、上述した包装用容器の蓋体と相違する部分を説明し、同等の部分の説明を省略する。図２及び図３で示した部品又は部位に相当するものは、参照を容易にするため、図５及び図６では図２及び図３において一律１００を加えた番号にしている。 Next, with reference to FIGS. 5 and 6, the portion of the lid of another packaging container according to the embodiment of the present invention, which is different from the above-mentioned lid of the packaging container, will be described, and the equivalent portion will be described. The explanation is omitted. In order to facilitate reference, the parts or parts corresponding to the parts or parts shown in FIGS. 2 and 3 are numbered by adding 100 uniformly in FIGS. 2 and 3.

図５に示すように、側壁部３００は、角部分に該当する位置に長手側壁部３１０及び短手側壁部３２０より外側に突出かつ緩やかに傾斜している凸状の突出部３３０を有する。 As shown in FIG. 5, the side wall portion 300 has a convex protrusion portion 330 that protrudes outward from the longitudinal side wall portion 310 and the lateral side wall portion 320 and is gently inclined at a position corresponding to the corner portion.

図６に示すように、突出前下端部３３０ｆａの曲率半径は、４～７ｍｍでもよく、好ましくは４．５ｍｍ～６．５ｍｍであり、より好ましくは５ｍｍ～６ｍｍであり、突出上端部３３０ｅの曲率半径と同等以下であることから、突出部３３０の幅は変わらず同じである。 As shown in FIG. 6, the radius of curvature of the protruding front lower end portion 330fa may be 4 to 7 mm, preferably 4.5 mm to 6.5 mm, more preferably 5 mm to 6 mm, and the curvature of the protruding upper end portion 330e. Since it is equal to or less than the radius, the width of the protrusion 330 remains the same.

Ｃ１ 蓋体
Ｃ２ 容器本体
１ 天面部
２ 側壁段差部
２３ 隅切り部
２３ａ 隅切り上端部
２３ｂ 隅切り上端部
２３ｃ 隅切り下端部
３、３００ 側壁部
３１、３１０ 第１側壁部（長手側壁部）
３２、３２０ 第２側壁部（短手側壁部）
３３、３３０ 突出部
３３ａ 突出第１境界部
３３ｂ 突出側部
３３ｃ 突出第２境界部
３３ｄ 突出前部
３３ｅ、３３０ｅ 突出上端部
３３ｆ 突出下端部
３３ｆａ、３３０ｆａ 突出前下端部
４ フランジ段差部
５ フランジ部
６ 嵌合壁部
６１ａ、６２ａ、６３ａ 嵌合部 C1 lid C2 container body 1 top surface 2 side wall stepped part 23 corner cut part 23a corner cut upper end part 23b corner cut upper end part 23c corner cut lower end part 3,300 side wall part 31,310 first side wall part (longitudinal side wall part)
32, 320 Second side wall (short side wall)
33, 330 Protruding part 33a Protruding first boundary part 33b Protruding side part 33c Protruding second boundary part 33d Protruding front part 33e, 330e Protruding upper end part 33f Protruding lower end part 33fa, 330fa Protruding front lower end part 4 Flange step part 5 Flange part 6 Fitting wall 61a, 62a, 63a Fitting

Claims (5)

天面部と、当該天面部の周端縁より下側に拡がって傾斜しており角部分を有する側壁部と、当該側壁部の下端縁より外側に延出しているフランジ部と、当該フランジ部の外周端縁より下側に垂下している嵌合壁部とを備え、
前記側壁部は、前記角部分に隣接する第１側壁部及び第２側壁部より外側に突出かつ緩やかに傾斜している凸状の突出部を有し、
前記突出部の上端部は前記側壁部の上端縁と下端縁との間に位置し、当該突出部の下端部は前記フランジ部の内周端縁より外側に位置し、
前記突出部の上端部から下端部までの端面形状は、直線状である
ことを特徴とする包装用容器の蓋体。 A top surface portion, a side wall portion that extends downward from the peripheral edge of the top surface portion and has a corner portion, a flange portion that extends outward from the lower end edge of the side wall portion, and a flange portion of the flange portion. With a fitting wall that hangs below the outer peripheral edge,
The side wall portion has a convex protrusion portion that protrudes outward from the first side wall portion and the second side wall portion adjacent to the corner portion and is gently inclined.
The upper end of the protrusion is located between the upper and lower edges of the side wall, and the lower end of the protrusion is located outside the inner peripheral edge of the flange.
The lid of the packaging container, characterized in that the shape of the end face from the upper end to the lower end of the protrusion is linear. 前記側壁部は、前記天面部の周端縁から下向きに垂下しており周方向に点在する角部分を有する側壁段差部を含み、前記側壁段差部の下端縁から下向きに拡がって傾斜しており、
前記側壁段差部は、前記角部分に傾斜している隅切り部を有し、
前記隅切り部と前記突出部との傾斜角は、略同等で、
前記隅切り部の下端部と前記突出部の上端部とは、略面一状に連続している
ことを特徴とする請求項１に記載の包装用容器の蓋体。 The side wall portion includes a side wall step portion that hangs downward from the peripheral edge of the top surface portion and has corner portions scattered in the circumferential direction, and extends downward from the lower end edge of the side wall step portion and is inclined. Ori,
The side wall step portion has a corner cut portion inclined at the corner portion.
The inclination angles of the corner cut portion and the protruding portion are substantially the same.
The lid of a packaging container according to claim 1, wherein the lower end portion of the corner cutting portion and the upper end portion of the protruding portion are continuous in a substantially uniform shape. 前記側壁部の下端縁から上向きに傾斜しているフランジ段差部をさらに備え、
前記フランジ部が、前記フランジ段差部の上端縁から外向きに延出しており、
前記突出部の下端部が、前記フランジ段差部を超えて前記フランジ部の内周端縁より外側に位置している
ことを特徴とする請求項１又は２に記載の包装用容器の蓋体。 Further provided with a flange step portion that is inclined upward from the lower end edge of the side wall portion.
The flange portion extends outward from the upper end edge of the flange step portion.
The lid of a packaging container according to claim 1 or 2, wherein the lower end portion of the protruding portion is located outside the inner peripheral edge of the flange portion beyond the flange step portion. 前記嵌合壁部は、前記突出部の下端部に近接する位置に幅広な嵌合部を有する
ことを特徴とする請求項１乃至３のいずれか一項に記載の包装用容器の蓋体。 The lid of a packaging container according to any one of claims 1 to 3, wherein the fitting wall portion has a wide fitting portion at a position close to the lower end portion of the protruding portion. 請求項１乃至４のいずれか一項に記載の包装用容器の蓋体と、当該蓋体の嵌合部と外嵌合する容器本体とを備えた
ことを特徴とする包装用容器。 A packaging container comprising the lid of the packaging container according to any one of claims 1 to 4, and a container body that is externally fitted to the fitting portion of the lid.
JP2022062185A 2019-07-03 2022-04-02 Lids of packaging containers and packaging containers Active JP7292624B2 (en)

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JP2009018866A (en) * 2007-06-15 2009-01-29 Fp Corp Packaging container and lid body
JP2012101828A (en) * 2010-11-11 2012-05-31 Athena Kogyo Co Ltd Container
JP2012240750A (en) * 2011-05-24 2012-12-10 Fp Corp Lid and container body for packaging container, and packaging container
JP2013086852A (en) * 2011-10-19 2013-05-13 Fp Corp Lid of packaging container, and packaging container
JP2015209244A (en) * 2014-04-30 2015-11-24 株式会社エフピコ Container with lid
JP2018140787A (en) * 2017-02-27 2018-09-13 シーピー化成株式会社 Resin molding
JP2018167904A (en) * 2017-03-30 2018-11-01 中央化学株式会社 Lid body for packaging container
JP2018167903A (en) * 2017-03-30 2018-11-01 中央化学株式会社 Packaging container

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JP2019043574A (en) * 2017-08-31 2019-03-22 中央化学株式会社 Lid for packaging container and packaging container with lid

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JP2009018866A (en) * 2007-06-15 2009-01-29 Fp Corp Packaging container and lid body
JP2012101828A (en) * 2010-11-11 2012-05-31 Athena Kogyo Co Ltd Container
JP2012240750A (en) * 2011-05-24 2012-12-10 Fp Corp Lid and container body for packaging container, and packaging container
JP2013086852A (en) * 2011-10-19 2013-05-13 Fp Corp Lid of packaging container, and packaging container
JP2015209244A (en) * 2014-04-30 2015-11-24 株式会社エフピコ Container with lid
JP2018140787A (en) * 2017-02-27 2018-09-13 シーピー化成株式会社 Resin molding
JP2018167904A (en) * 2017-03-30 2018-11-01 中央化学株式会社 Lid body for packaging container
JP2018167903A (en) * 2017-03-30 2018-11-01 中央化学株式会社 Packaging container

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