JP4457552B2

JP4457552B2 - Food packaging box

Info

Publication number: JP4457552B2
Application number: JP2002332551A
Authority: JP
Inventors: まどか荒井
Original assignee: Ajinomoto Co Inc
Current assignee: Ajinomoto Co Inc
Priority date: 2002-11-15
Filing date: 2002-11-15
Publication date: 2010-04-28
Anticipated expiration: 2022-11-15
Also published as: JP2004168317A

Description

【０００１】
【発明の属する技術分野】
本発明は、箱を展開すると皿としての機能を発揮する食品包装箱に関する。
【０００２】
【従来の技術】
食品包装箱としては、平面視四角形の底板の各辺に側板をそれぞれ谷折り線を介して連設し、隣接する側板のいずれか一方の側板に他方の側板内側に折り曲げられるフラップを谷折り線を介して連設した組立箱がよく使用されている。また、例えば、ケーキ等の包装箱として、四角形の底板の各辺にそれぞれ谷折り線を介して連設される複数の側板と、各側板間に谷折り線を介して連設される補助片と、前記側板の対向する一対の側板にそれぞれ谷折り線を介して連設される蓋板と、残りの対向する一対の側板にそれぞれ折り線を介して連設される吊り下げ片とを備えたものもある（例えば、特許文献１参照。）。
【０００３】
【特許文献１】
特開２０００−３１８７２５号公報（第２〜４頁、図１〜４）
【０００４】
【発明が解決しようとする課題】
しかしながら、上述の従来の箱は、輸送・貯蔵に適した機能を有するものの、箱を展開すると平板状になるので、収納された食品を別の皿に移す必要がある。例えば、学校給食のデザートとして配膳される１個箱入りケーキでは、生徒がケーキを持って別の皿に移して食べているので、非衛生的であった。また、アウトドアでの喫食の際には、箱を持って食べるので、食べにくく、収納された食品がこぼれたりすることがある。
【０００５】
そこで本発明は、側板の展開が容易で、展開すると、内容物がこぼれない、持ちやすい等の皿としての機能を発揮する食品包装箱を提供することを目的としている。
【０００６】
【課題を解決するための手段】
上記した目的を達成するため、本発明は、平面視多角形の底板の各辺に側板をそれぞれ谷折り線を介して連設し、隣接する側板のいずれか一方の側板に他方の側板内側に折り曲げられるフラップを谷折り線を介して連設した食品包装箱において、前記フラップと前記他方の側板との対向辺の対応位置に、互いに反対方向へ屈曲する「ヘ」字状の切り欠きからなる係合部をそれぞれ設け、各側板及び各フラップを展開して、前記対応位置にそれぞれ設けられた「ヘ」字状の切り欠き同士を係合させて隣接する側板とフラップとを部分的に重ねて、各側板及び各フラップを前記底板の周囲に斜め上方に立ち上げて皿状に組み立て可能としたことを特徴としている。
【０００７】
【発明の実施の形態】
以下、本発明を、図面に示す各実施形態例に基づいて、さらに詳細に説明する。図１乃至図４は、直方体の食品包装箱に本発明を適用した第１実施形態例を示すもので、図１は展開図、図２は箱に組み立てる途中の斜視図、図３は箱として組み立てられた状態の斜視図、図４は皿として組み立てられた状態の斜視図である。
【０００８】
耐油・耐水加工を施した紙製の食品包装箱１は、長方形の底板２の対向する長片の一方の辺（図１において下側）に谷折り線２ａを介して四角形の第１側板３を、他方の辺（図１において上側）に谷折り線２ｂを介して四角形の第２側板４をそれぞれ連設するとともに、対向する短辺の一方の辺（図１において右側）に谷折り線２ｃを介して四角形の第３側板５を、他方の辺（図１において左側）に谷折り線２ｄを介して四角形の第４側板６をそれぞれ連設し、さらに、第３側板５に谷折り線５ａを介して蓋板７を、第４側板６に谷折り線６ａを介して蓋板８をそれぞれ連設している。
【０００９】
第１側板３は、隣接する第３側板５側に谷折り線３ａを介して扇形の第１フラップ９を、隣接する第４側板６側に谷折り線３ｂを介して扇形の第２フラップ１０を、残りの辺に谷折り線３ｃを介して折り曲げ片１１をそれぞれ連設している。また、第２側板４は、隣接する第３側板５側に谷折り線４ａを介して扇形の第３フラップ１２を、隣接する第４側板６側に谷折り線４ｂを介して扇形の第４フラップ１３を、残りの辺に谷折り線４ｃを介して折り曲げ片１４をそれぞれ連設している。第１及び第３フラップ９，１２は、展開状態で第３側板５との空間を埋める大きさに形成され、また、第２及び第４フラップ１０，１３も、同様に、展開状態で第４側板６との空間を埋める大きさに形成されている。
【００１０】
第３側板５と第１フラップ９とは、それぞれの対向辺５ｂ、９ａに、互いに係合するための係合部として切り欠き１５，１６を対応する位置に形成し、また、第３側板５と第３フラップ１２も、それぞれの対向辺５ｃ，１２ａに互いに係合するための切り欠き１７，１８を対応する位置に形成している。同様に、第４側板６と第２フラップ１０も、それぞれの対向辺６ｂ，１０ａに互いに係合するための切り欠き１９，２０を、第４側板６と第４フラップ１３も同様に、それぞれの対向辺６ｃ，１３ａに互いに係合するための切り欠き２１，２２をそれぞれ対応する位置に形成している。蓋板７，８は、それぞれの先端に互いに係合するための係止溝７ａ，８ａを設けている。
【００１１】
この食品包装箱１は、各フラップ９，１０，１２，１３をそれぞれ箱内側へ折り曲げ、第１側板３及び第２側板４を箱内側へ折り曲げ、続いて、第３側板５及び第４側板６を箱内側へ折り曲げると、フラップ９，１２が第３側板５の内側に、フラップ１０，１３が第４側板６の内側にそれぞれ折り曲げられて、第１側板３、第２側板４、第３側板５及び第４側板６が底板２に対して９０度立ち上がる。この状態で各側板３，４，５，６で囲まれる空間内に例えばケーキＣを入れ、折り曲げ片１１，１４を箱内側へ折り曲げ、さらに蓋板７，８を箱内側へ折り曲げて、蓋板７，８の係止溝７ａ，８ａ同士を係合させると、食品包装箱１が直方体形の箱に組み立てられる。
【００１２】
次に、食品包装箱１を皿として使用する順序を説明する。蓋板７，８の係合を解いて蓋板７，８を開き、第１側板３、第２側板４、第３側板５、第４側板６及び各フラップ９，１０，１２，１３を広げて展開し、第３側板５の切り欠き１５にフラップ９の切り欠き１６を、第３側板５の切り欠き１７にフラップ１２の切り欠き１８を、第４側板６の切り欠き１９にフラップ１０の切り欠き２０を、第４側板６の切り欠き２１にフラップ１３の切り欠き２２をそれぞれ差し込んで係合させると、第３側板５とフラップ９，１２、第４側板６とフラップ１０、１３とがそれぞれ部分的に重なって、各側板３，４，５，６及び各フラップ９，１０，１２，１３は、ケーキＣを載置した底板２の周囲に斜め上方に立ち上り、底板２の周囲に上方へ広がるテーパー状の縁を形成して皿状に組み立てられる。
【００１３】
図５乃至図７は、平面視三角形の食品包装箱に本発明を適用した第２実施形態例を示すもので、図５は展開図、図６は箱として組み立てられた状態の斜視図、図７は皿として組み立てられた状態の斜視図である。食品包装箱３０は、三角形の底板３１の各辺に、谷折り線３１ａを介して四角形の第１側板３２を、谷折り線３１ｂを介して四角形の第２側板３３を、谷折り線３１ｃを介して四角形の第３側板３４をそれぞれ連設し、第１側板３２の第２側板３３側に谷折り線３２ａを介して第１フラップ３５を連接し、第２側板３３の第３側板３４側に谷折り線３３ａを介して第２フラップ３６を、第３側板３４の第１側板３２側に谷折り線３４ａを介して第３フラップ３７をそれぞれ連設するとともに、第１側板３２に谷折り線３２ｂを介して三角形の蓋板３８を連設している。各フラップ３５，３６，３７は、展開状態で隣接する側板との間を埋める大きさに形成され、中央部分に谷折り線３５ｂ，３６ｂ，３７ｂをそれぞれ設けている。
【００１４】
また、第２側板３３に谷折り線３３ｂを介して折り曲げ片３９を、第３側板３４に谷折り線３４ｂを介して折り曲げ片４０をそれぞれ連設している。さらに、蓋板３８の第２側板３３に対応する辺３８ａに係止片４１を、第３側板３４に対応する辺３８ｂに係止片４２をそれぞれ折り曲げ可能に設け、第２側板３３の折り線３３ｂの中央に係止片４１の挿入溝４３を、第３側板３４の折り線３４ｂの中央に係止片４３の挿入溝４４をそれぞれ形成している。
【００１５】
第１フラップ３５と第２側板３３とは、それぞれの対向辺３５ａ，３３ｃに互いに係合するための切り欠き４５，４６を、同様に、第２フラップ３６と第３側板３４も、それぞれの対向辺３６ａ，３４ｃに切り欠き４７，４８を、第３フラップ３７と第１側板３２も、それぞれの対向辺３７ａ，３２ｃに切り欠き４９，５０をそれぞれ対応する位置に形成している。
【００１６】
この食品包装箱３０は、各フラップ３５，３６，３７を谷折り線３５ｂ，３６ｂ，３７ｂにてそれぞれ二つに折り曲げた後、各フラップ３５，３６，３７をそれぞれ箱内側へ折り曲げ、続いて、各側板３２，３３，３４を箱内側へ折り曲げて、第１フラップ３５を第２側板３３の内側に、第２フラップ３６を第３側板３４の内側に、第３フラップ３７を第１側板３２の内側にそれぞれ寄せ、この状態で、各側板３２，３３，３４で囲まれる空間内に食品を入れ、折り曲げ片３９、４０を箱内側へ折り曲げ、蓋板３８を被せて、係止片４１を挿入溝４３に、係止片４２を挿入溝４４にそれぞれ挿入することにより、食品包装箱３０が組み立てられる。
【００１７】
皿として使用する場合は、前記第１実施形態例と同様に、蓋板３８を開けて各側板３２，３３，３４及び各フラップ３５，３６，３７を展開し、各フラップ３５，３６，３７をそれぞれ広げて、第１フラップ３５の切り欠き４５を第２側板３３の切り欠き４６に、第２フラップ３６の切り欠き４７を第３側板３４の切り欠き４８に、第３フラップ３７の切り欠き４９を第１側板３２の切り欠き５０にそれぞれ係合させることにより、各側板３３，３３，３４及び各フラップ３５，３６，３７が底板３１の周囲に斜め上方にに立ち上り、底板３１の周囲に上方へ広がるテーパー状の縁を形成して皿状に組み立てられる。
【００１８】
図８乃至図１０は、平面視五角形の食品包装箱に本発明を適用した第３実施形態例を示すもので、図８は展開図、図９は箱として組み立てられた状態の斜視図、図１０は皿として組み立てられた状態の斜視図である。食品包装箱６０は、五角形の底板６１の各辺に、谷折り線６１ａを介して四角形の第１側板６２を、谷折り線６１ｂを介して四角形の第２側板６３を、谷折り線６１ｃを介して四角形の第３側板６４を、谷折り線６１ｄを介して四角形の第４側板６５を、谷折り線６１ｅを介して四角形の第５側板６６をそれぞれ連設している。
【００１９】
また、第１側板６２の第２側板６３側に谷折り線６２ａを介して第１フラップ６７を、第２側板６３の第３側板６４側に谷折り線６３ａを介して第２フラップ６８を、第３側板６４の第４側板６５側に谷折り線６４ａを介して第３フラップ６９を、第４側板６５の第５側板６６側に谷折り線６５ａを介して第４フラップ７０を、第５側板６６の第１側板６２側に谷折り線６６ａを介して第５フラップ７１をそれぞれ連設するとともに、第１側板６２に谷折り線６２ｂを介して五角形の蓋板７２を連設している。各フラップ６７，６８，６９，７０，７１は、展開状態で隣接する側板との間を埋める大きさに形成されている。
【００２０】
さらに、第２側板６３に谷折り線６３ｂを介して折り曲げ片７３を、第３側板６４に谷折り線６４ｂを介して折り曲げ片７４を、第４側板６５に谷折り線６５ｂを介して折り曲げ片７５を、第５側板６６に谷折り線６６ｂを介して折り曲げ片７６をそれぞれ連設している。また、蓋板７２の第２側板６３対応辺７２ａに係止片７７を、第３側板６４対応辺７２ｂに係止片７８を、第４側板６５対応辺７２ｃに係止片７９を、第５側板６６対応辺７２ｄに係止片８０をそれぞれ折り曲げ可能に設け、第２側板６３の折り線６３ｂ中央に係止片７３の挿入溝８１を、第３側板６４の折り線６４ｂ中央に係止片７４の挿入溝８２を、第４側板６５の折り線６５ｂ中央に係止片７５の挿入溝８３を、第５側板６６の折り線６６ｂ中央に係止片７６の挿入溝８４をそれぞれ形成している。
【００２１】
第１フラップ６７と第２側板６３とは、それぞれの対向辺６７ａ，６３ｃに互いに係合するための切り欠き８５，８６を、同様に、第２フラップ６８と第３側板６４も、それぞれの対向辺６８ａ，６４ｃに切り欠き８７，８８を、第３フラップ６９と第４側板６５も、それぞれの対向辺６９ａ，６５ｃに切り欠き８９，９０を、第４フラップ７０と第５側板６６も、それぞれの対向辺７０ａ，６６ｃに切り欠き９１，９２を、第５フラップ７１と第１側板６２も、それぞれの対向辺７１ａ，６２ｃに切り欠き９３，９４をそれぞれ対応する位置に形成している。
【００２２】
この食品包装箱６０は、各フラップ６７，６８，６９，７０，７１をそれぞれ箱内側へ折り曲げ、続いて、各側板６２，６３，６４，６５，６６を箱内側へ折り曲げて底板６１の周囲に９０度立ち上げ、各側板６２，６３，６４，６５，６６で囲まれる空間内に食品を入れ、折り曲げ片７３，７４，７５，７６を箱内側へ折り曲げ、蓋板７２を被せて、係止片７７を挿入溝８１に、係止片７８を挿入溝８２に、係止片７９を挿入溝８３に、係止片８０を挿入溝８４にそれぞれ挿入することにより、食品包装箱６０が組み立てられる。
【００２３】
皿として使用する場合は、前記第１，２実施形態例と同様に、蓋板７２を開けて各側板６２，６３，６４，６５，６６及び各フラップ６７，６８，６９，７０，７１を展開し、第１フラップ６７の切り欠き８５を第２側板６３の切り欠き８６に、第２フラップ６８の切り欠き８７を第３側板６４の切り欠き８８に、第３フラップ６９の切り欠き８９を第４側板６５の切り欠き９０に、第４フラップ７０の切り欠き９１を第５側板６６の切り欠き９２に、第５フラップ７１の切り欠き９３を第１側板６２の切り欠き９４にそれぞれ係合させることにより、各側板６２，６３，６４，６５，６６及び各フラップ６７，６８，６９，７０，７１が底板６１の周囲に斜め上方に立ち上がり、底板６１の周囲に上方へ広がるテーパー状の縁を形成して皿状に組み立てられる。
【００３２】
【発明の効果】
以上説明したように、本発明の食品包装箱は、展開が容易で、展開すると、底面に空隙がなくて内容物がこぼれない皿状にすることができる。したがって、別の皿を用意する必要がない。また、持ち運びやすく、収納された食品に手を触れずに皿にすることができるから衛生的である。さらに、底板、側板及びフラップの内側に絵を描くことにより、絵皿としての演出ができる。
【図面の簡単な説明】
【図１】第１実施形態例の箱の展開図
【図２】同じく箱に組み立てる途中の斜視図
【図３】同じく箱として組み立てられた状態の斜視図
【図４】同じく皿として組み立てられた状態の斜視図
【図５】第２実施形態例の箱の展開図
【図６】同じく箱として組み立てられた状態の斜視図
【図７】同じく皿として組み立てられた状態の斜視図
【図８】第３実施形態例の箱の展開図
【図９】同じく箱として組み立てられた状態の斜視図
【図１０】同じく皿として組み立てられた状態の斜視図
【符号の説明】
１…食品包装箱、２…底板、２ａ，２ｂ，２ｃ，２ｄ…底板２の谷折り線、３…第１側板、３ａ…第１側板３の谷折り線、４…第２側板、４ａ…第２側板４の谷折り線、５…第３側板、５ａ…第３側板５の谷折り線、５ｂ…第３側板５の第１フラップ９との対向辺、５ｃ…第３側板５の第３フラップ９との対向辺、６…第４側板、６ａ…第４側板６の谷折り線、６ｂ…第４側板６の第２フラップ１０との対向辺、６ｃ…第４側板６の第４フラップ１３との対向辺、７，８…蓋板、９…第１フラップ、９ａ…第１フラップ９の第３側板５との対向辺、１０…第２フラップ、１０ａ…第２フラップ１０の第４側板６との対向辺、１２…第３フラップ、１２ａ…第３フラップの第３側板５との対向辺、１３…第４フラップ、１３ａ…第４フラップの第４側板６との対向辺、１５，１６，１７，１８，１９，２０，２１，２２…切り欠き[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a food packaging box that functions as a dish when the box is unfolded.
[0002]
[Prior art]
As a food packaging box, a side plate is connected to each side of a rectangular bottom plate in plan view via a valley fold line, and a flap that is bent to the inner side of the other side plate is attached to one side plate of the adjacent side plate. An assembly box that is provided continuously through the door is often used. In addition, for example, as a packaging box for cakes, etc., a plurality of side plates connected to each side of a rectangular bottom plate via valley fold lines, and auxiliary pieces connected to each side plate via valley fold lines And a pair of side plates opposed to the side plate via a fold line, respectively, and a suspension piece connected to the remaining pair of opposed side plates via a fold line, respectively. (For example, refer to Patent Document 1).
[0003]
[Patent Document 1]
JP 2000-318725 A (pages 2 to 4, FIGS. 1 to 4)
[0004]
[Problems to be solved by the invention]
However, although the above-mentioned conventional box has a function suitable for transportation and storage, it becomes flat when the box is unfolded, so that the stored food needs to be transferred to another plate. For example, a one-box cake served as a school lunch dessert was unhygienic because the students took the cake and moved it to another plate. In addition, when eating outdoors, it is difficult to eat because it is eaten with a box, and the stored food may spill.
[0005]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a food packaging box that exhibits a function as a dish such that the side plate can be easily developed and the contents are not spilled or held easily when deployed.
[0006]
[Means for Solving the Problems]
In order to achieve the above-described object, according to the present invention, a side plate is connected to each side of a polygonal bottom plate in plan view via a valley fold line, and one side plate of an adjacent side plate is placed inside the other side plate. the flap is folded Te continuously provided with food packaging box odor through the valley fold line, a corresponding position on opposite sides of the front Symbol flap and the other side plate, notches in the opposite direction to bend "f" shape to each other Each of the side plates and the flaps are expanded, and the "H" -shaped notches provided at the corresponding positions are engaged with each other so that the adjacent side plates and the flaps are partially Again, it is characterized in that which enables assembly dished launched obliquely upward around the side plates and each flap the bottom plate.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail based on each embodiment shown in the drawings. 1 to 4 show a first embodiment in which the present invention is applied to a rectangular parallelepiped food packaging box. FIG. 1 is a developed view, FIG. 2 is a perspective view in the middle of assembling the box, and FIG. 3 is a box. FIG. 4 is a perspective view of the assembled state, and FIG. 4 is a perspective view of the assembled state.
[0008]
The oil- and water-resistant paper-made food packaging box 1 has a rectangular first side plate 3 via a valley fold line 2a on one side (lower side in FIG. 1) of the opposing long piece of the rectangular bottom plate 2. Is connected to the other side (upper side in FIG. 1) via a valley fold line 2b, and the second side plate 4 is connected to the other side (right side in FIG. 1). A quadrangular third side plate 5 is connected via 2c, and a quadrangular fourth side plate 6 is connected to the other side (left side in FIG. 1) via a valley fold line 2d. The lid plate 7 is connected to the fourth side plate 6 via the line 5a, and the lid plate 8 is connected to the fourth side plate 6 via the valley fold line 6a.
[0009]
The first side plate 3 has a fan-shaped first flap 9 on the side of the adjacent third side plate 5 via a valley fold line 3a, and the sector-shaped second flap 10 on the side of the adjacent fourth side plate 6 via a valley fold line 3b. The bent pieces 11 are connected to the remaining sides via valley fold lines 3c. The second side plate 4 has a sector-shaped third flap 12 on the side of the adjacent third side plate 5 via a valley fold line 4a, and a sector-shaped fourth on the side of the adjacent fourth side plate 6 via a valley fold line 4b. Folding pieces 14 are connected to the flap 13 via valley fold lines 4c on the remaining sides. The first and third flaps 9 and 12 are sized to fill the space with the third side plate 5 in the deployed state, and the second and fourth flaps 10 and 13 are similarly fourth in the deployed state. It is sized to fill the space with the side plate 6.
[0010]
The third side plate 5 and the first flap 9 are formed with notches 15 and 16 at corresponding positions on the opposing sides 5b and 9a as engaging portions for engaging with each other. And the third flap 12 are also formed with notches 17 and 18 at the corresponding positions for engaging with the opposite sides 5c and 12a. Similarly, the fourth side plate 6 and the second flap 10 also have notches 19 and 20 for engaging the opposite sides 6b and 10a with each other, and the fourth side plate 6 and the fourth flap 13 have the same shape. Cutouts 21 and 22 for engaging the opposite sides 6c and 13a are formed at corresponding positions. The cover plates 7 and 8 are provided with locking grooves 7a and 8a for engaging with each other at their respective tips.
[0011]
In the food packaging box 1, the flaps 9, 10, 12, and 13 are bent to the inside of the box, the first side plate 3 and the second side plate 4 are bent to the inside of the box, and then the third side plate 5 and the fourth side plate 6 are folded. Is folded inside the box, the flaps 9 and 12 are folded inside the third side plate 5, and the flaps 10 and 13 are folded inside the fourth side plate 6, respectively. The first side plate 3, the second side plate 4, and the third side plate 5 and the fourth side plate 6 rise 90 degrees with respect to the bottom plate 2. In this state, for example, cake C is placed in the space surrounded by the side plates 3, 4, 5, and 6, the folded pieces 11 and 14 are folded to the inside of the box, and the lid plates 7 and 8 are folded to the inside of the box. When the engaging grooves 7a, 8a of the 7, 8 are engaged with each other, the food packaging box 1 is assembled into a rectangular parallelepiped box.
[0012]
Next, the order in which the food packaging box 1 is used as a dish will be described. The lid plates 7 and 8 are disengaged to open the lid plates 7 and 8, and the first side plate 3, the second side plate 4, the third side plate 5, the fourth side plate 6 and the flaps 9, 10, 12, and 13 are spread. The flap 9 has a notch 16 in the notch 15 in the third side plate 5, the notch 18 in the flap 12 in the notch 17 in the third side plate 5, and the notch 19 in the notch 19 in the fourth side plate 6. When the notch 20 is engaged with the notch 21 of the flap 13 by inserting the notch 22 of the flap 13 into the notch 21 of the fourth side plate 6, the third side plate 5 and the flaps 9 and 12, and the fourth side plate 6 and the flaps 10 and 13 are engaged. Each of the side plates 3, 4, 5, 6 and the flaps 9, 10, 12, 13 rises obliquely upward around the bottom plate 2 on which the cake C is placed, and upwards around the bottom plate 2 It is assembled in a dish shape by forming a tapered edge that spreads out.
[0013]
5 to 7 show a second embodiment in which the present invention is applied to a food packaging box having a triangular shape in plan view. FIG. 5 is a developed view, and FIG. 6 is a perspective view of a state assembled as a box. 7 is a perspective view of the assembled state as a dish. The food packaging box 30 has a square first side plate 32 via a valley fold line 31a, a square second side plate 33 via a valley fold line 31b, and a valley fold line 31c on each side of the triangular bottom plate 31. A third side plate 34 having a quadrangular shape, and a first flap 35 connected to the second side plate 33 side of the first side plate 32 via a valley fold line 32a, and the third side plate 34 side of the second side plate 33. The second flap 36 is connected to the first side plate 32 via the valley fold line 34 a and the second flap 36 is connected to the first side plate 32 side of the third side plate 34. A triangular lid plate 38 is continuously provided via a line 32b. Each of the flaps 35, 36, and 37 is formed in a size that fills a space between adjacent side plates in the unfolded state, and has valley fold lines 35b, 36b, and 37b at the center.
[0014]
Further, the bent piece 39 is connected to the second side plate 33 via a valley fold line 33b, and the bent piece 40 is connected to the third side plate 34 via a valley fold line 34b. Further, a locking piece 41 is provided on the side 38 a corresponding to the second side plate 33 of the lid plate 38 and a locking piece 42 is provided on the side 38 b corresponding to the third side plate 34 so as to be foldable. An insertion groove 43 of the locking piece 41 is formed in the center of 33b, and an insertion groove 44 of the locking piece 43 is formed in the center of the fold line 34b of the third side plate 34, respectively.
[0015]
The first flap 35 and the second side plate 33 are provided with notches 45 and 46 for engaging with the opposite sides 35a and 33c, respectively. Similarly, the second flap 36 and the third side plate 34 are also provided with respective opposite sides. Notches 47 and 48 are formed in the sides 36a and 34c, and the third flap 37 and the first side plate 32 are also formed with notches 49 and 50 in the corresponding sides 37a and 32c, respectively.
[0016]
The food packaging box 30 is formed by folding the flaps 35, 36, and 37 into two at the valley fold lines 35b, 36b, and 37b, and then folding the flaps 35, 36, and 37, respectively. Each side plate 32, 33, 34 is bent inward of the box, the first flap 35 is inside the second side plate 33, the second flap 36 is inside the third side plate 34, and the third flap 37 is inside the first side plate 32. In this state, put food in the space surrounded by the side plates 32, 33, 34, fold the bent pieces 39, 40 inward, cover the lid plate 38, and insert the locking piece 41 The food packaging box 30 is assembled by inserting the locking pieces 42 into the insertion grooves 44 in the grooves 43.
[0017]
When used as a dish, as in the first embodiment, the lid plate 38 is opened and the side plates 32, 33, 34 and the flaps 35, 36, 37 are developed, and the flaps 35, 36, 37 are opened. The notch 45 of the first flap 35 is expanded to the notch 46 of the second side plate 33, the notch 47 of the second flap 36 to the notch 48 of the third side plate 34, and the notch 49 of the third flap 37. Are engaged with the notches 50 of the first side plate 32, so that the side plates 33, 33, 34 and the flaps 35, 36, 37 rise obliquely upward around the bottom plate 31, and upward around the bottom plate 31. It is assembled in a dish shape by forming a tapered edge that spreads out.
[0018]
FIGS. 8 to 10 show a third embodiment in which the present invention is applied to a pentagonal food packaging box in plan view, FIG. 8 is a developed view, and FIG. 9 is a perspective view of a state assembled as a box. 10 is a perspective view of a state assembled as a dish. The food packaging box 60 has a rectangular first side plate 62 via a valley fold line 61a, a square second side plate 63 via a valley fold line 61b, and a valley fold line 61c on each side of a pentagonal bottom plate 61. A quadrangular third side plate 64, a quadrangular fourth side plate 65 via a valley fold line 61d, and a quadrangular fifth side plate 66 via a valley fold line 61e are connected.
[0019]
In addition, the first flap 67 is disposed on the second side plate 63 side of the first side plate 62 via the valley fold line 62a, and the second flap 68 is disposed on the third side plate 64 side of the second side plate 63 via the valley fold line 63a. A third flap 69 is provided on the fourth side plate 65 side of the third side plate 64 via a valley fold line 64a, a fourth flap 70 is provided on the fifth side plate 66 side of the fourth side plate 65 via a valley fold line 65a, and a fifth A fifth flap 71 is connected to the first side plate 62 side of the side plate 66 via a valley fold line 66a, and a pentagonal lid plate 72 is connected to the first side plate 62 via a valley fold line 62b. . Each of the flaps 67, 68, 69, 70, 71 is formed in a size that fills the space between adjacent side plates in the unfolded state.
[0020]
Further, the second side plate 63 is bent through a valley fold line 63b, the third side plate 64 is bent through a valley fold line 64b, and the fourth side plate 65 is bent through a valley fold line 65b. 75, and the bent piece 76 are connected to the fifth side plate 66 via a valley fold line 66b. Further, a locking piece 77 is provided on the side 72a corresponding to the second side plate 63 of the cover plate 72, a locking piece 78 is provided on the side 72b corresponding to the third side plate 64, a locking piece 79 is provided on the side 72c corresponding to the fourth side plate 65, and the fifth. A locking piece 80 is provided on each side plate 72d corresponding to the side plate 66 so as to be foldable, an insertion groove 81 of the locking piece 73 is provided at the center of the folding line 63b of the second side plate 63, and a locking piece is provided at the center of the folding line 64b of the third side plate 64 74, the insertion groove 83 of the locking piece 75 is formed in the center of the folding line 65b of the fourth side plate 65, and the insertion groove 84 of the locking piece 76 is formed in the center of the folding line 66b of the fifth side plate 66, respectively. Yes.
[0021]
The first flap 67 and the second side plate 63 are provided with notches 85 and 86 for engaging with the opposing sides 67a and 63c, respectively. Similarly, the second flap 68 and the third side plate 64 are also provided with the opposite sides. Notches 87 and 88 on the sides 68a and 64c, the third flap 69 and the fourth side plate 65, and notches 89 and 90 on the opposite sides 69a and 65c, and the fourth flap 70 and the fifth side plate 66, respectively. Notches 91 and 92 are formed on the opposite sides 70a and 66c, and the fifth flap 71 and the first side plate 62 are also formed with cutouts 93 and 94 on the opposite sides 71a and 62c, respectively.
[0022]
In this food packaging box 60, each of the flaps 67, 68, 69, 70, 71 is folded inside the box, and then each side plate 62, 63, 64, 65, 66 is folded inside the box to surround the bottom plate 61. Start up 90 degrees, put food in the space surrounded by each side plate 62, 63, 64, 65, 66, fold the folded pieces 73 , 74 , 75 , 76 inside the box , cover the lid plate 72, and lock The food packaging box 60 is assembled by inserting the piece 77 into the insertion groove 81, the locking piece 78 into the insertion groove 82, the locking piece 79 into the insertion groove 83, and the locking piece 80 into the insertion groove 84, respectively. .
[0023]
When used as a dish, as in the first and second embodiments, the lid plate 72 is opened and the side plates 62, 63, 64, 65, 66 and the flaps 67, 68, 69, 70, 71 are developed. The notch 85 of the first flap 67 is the notch 86 of the second side plate 63, the notch 87 of the second flap 68 is the notch 88 of the third side plate 64, and the notch 89 of the third flap 69 is the first notch. A notch 91 of the fourth flap 70 is engaged with a notch 92 of the fifth side plate 66, and a notch 93 of the fifth flap 71 is engaged with the notch 94 of the first side plate 62. Accordingly, the side plates 62, 63, 64, 65, 66 and the flaps 67, 68, 69, 70, 71 rise obliquely upward around the bottom plate 61, and have tapered edges that spread upward around the bottom plate 61. Forming dish Assembled to.
[0032]
【The invention's effect】
As described above, the food packaging box of the present invention can be easily developed, and when expanded, the food packaging box can be formed into a dish shape that has no voids on the bottom surface and does not spill contents. Therefore, it is not necessary to prepare another dish. Moreover, it is hygienic because it is easy to carry and can be made into a dish without touching the stored food. Furthermore, by drawing a picture on the inside of the bottom plate, the side plate, and the flap, it is possible to produce a picture plate.
[Brief description of the drawings]
FIG. 1 is a developed view of a box according to the first embodiment. FIG. 2 is a perspective view in the middle of assembling the box. FIG. 3 is a perspective view of the same assembled state as a box. FIG. 5 is a developed view of the box of the second embodiment. FIG. 6 is a perspective view of the state assembled as a box. FIG. 7 is a perspective view of the state assembled as a plate. FIG. 9 is a perspective view of a state of being assembled as a box. FIG. 10 is a perspective view of a state of being assembled as a plate.
DESCRIPTION OF SYMBOLS 1 ... Food packaging box, 2 ... Bottom plate, 2a, 2b, 2c, 2d ... Valley fold line of bottom plate 2, 3 ... 1st side plate, 3a ... Valley fold line of 1st side plate 3, 4 ... 2nd side plate, 4a ... Valley folding line of the second side plate 4, 5... Third side plate, 5 a. Valley folding line of the third side plate 5, 5 b... Opposite side of the third side plate 5 with the first flap 9, 5 c. 3 side opposite to the flap 9, 6... Fourth side plate, 6 a .. trough fold line of the fourth side plate 6, 6 b. Sides facing the flap 13, 7, 8... Lid plate, 9... 1st flap, 9 a .. Side facing the third side plate 5 of the first flap 9, 10. Opposite side with 4 side plate 6, 12 ... 3rd flap, 12a ... Opposite side with 3rd side plate 5 of 3rd flap, 13 ... 4th flap, 13a ... 4th flap 4 opposing sides of the side plates 6, 15,16,17,18,19,20,21,22 ... notch

Claims

A side plate is connected to each side of the polygonal bottom plate in plan view via a valley fold line, and a flap that can be bent to the inside of the other side plate is connected to one of the adjacent side plates via a valley fold line. In each of the food packaging boxes, an engaging portion made of a “H” -shaped notch that bends in opposite directions is provided at a position corresponding to the opposite side of the flap and the other side plate, and each side plate and each flap is provided. And the adjacent side plates and flaps are partially overlapped with each other by engaging the notch-shaped notches provided at the corresponding positions, and the side plates and the flaps around the bottom plate. A food packaging box characterized in that it can be assembled diagonally by being raised diagonally upward.