JP2004175427A

JP2004175427A - Wireless corrugated board case

Info

Publication number: JP2004175427A
Application number: JP2002345439A
Authority: JP
Inventors: Masahiro Kobayashi; 小林昌弘; Hiromi Okochi; 大河内弘美
Original assignee: Chuoh Pack Industry Co Ltd
Current assignee: Chuoh Pack Industry Co Ltd
Priority date: 2002-11-28
Filing date: 2002-11-28
Publication date: 2004-06-24

Abstract

<P>PROBLEM TO BE SOLVED: To provide a corrugated board case in which the lid face pieces can be easily closed and after the contents are put in and the lid face pieces are closed, it is hard to remove the lid face pieces, while the lid face pieces can be opened easily for confirming the contents or the like and any deforming is not generated on the bottom part and any clamp wire is not used for keeping the position when the corrugated board is folded up. <P>SOLUTION: The corrugated board case folded up from a piece of corrugated board comprises a peripheral wall formed by folding a lid part and a bottom part to the upper and lower surfaces and integrally and continuously connecting thereto. The lid part is formed by connecting lid face pieces integrally to each other. Further the lid part is closed by engaging an engagement piece into an engaging slit and pushing up the engagement piece by a tongue. The bottom part is formed by connecting bottom face pieces integrally and engaging them to each other and folding them. Further the bottom part is closed by engaging other engagement piece into the jointing hole of the engagement piece. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、一枚の段ボールから箱状に折り上げ形成する段ボールケースである。蓋部は、閉じ易く、一旦物を中に入れた後は、蓋が簡単に外れることが無く、一方、中の確認等のためには開け易さを提供する。底部については、型崩れや中に入れた物が重みで底が抜けたりする等の不具合を確実に無くすことができる構成を提供するものである。また、大根等重量のある青果物を中に一杯詰めることができる。しかも、段ボールを折り上げる際、その姿勢を保持するにあたり、留め金具のワイヤを使用しない段ボールケースに関する。
【０００２】
【従来の技術】
段ボールを折り上げる際、その姿勢を保持するにあたり、留め金具のワイヤを使用することが多い。一方、ワイヤを使用しない従来の段ボールケースは次のような構成である。１枚の段ボールから箱状に折り上げられ、蓋部と底部を上下面に折り曲げ一体連接した周壁部とからなる。蓋部は蓋面片が一体連接している。そして、底部は底面片が一体連接して相互に関連係合して、折り込み底部を形成している。以下、図１、図２について説明する。図１は段ボールケース蓋部の折り上げ途中の状態を示す斜視図である。蓋部１０は蓋面片１１〜１４が一体連接し、更に嵌合片１５を嵌合用切欠５８に嵌め込まして蓋面片を閉じている。なお、この嵌合用切欠の孔は蓋面片１４の強度上、できるだけ小さくする必要がある。ここで、中に青果物等が一杯詰まっている場合、嵌合片１５の先端が物に当たり、嵌合片を挿嵌し難かった。また、物を一旦中に入れた後、嵌合片１５が嵌合用切欠５８から簡単に外れ易く、一方、中の確認等のためには嵌合用切欠の孔が小さいので、指が入らず蓋面片を開け難かった。次に、図２に、底部を下面図で示す。底部は底面片３１〜３４が一体連接し、相互に関連係合して、折り込み底部３０を形成している。更に先端部が鳩尾状に拡がった嵌合片３５と嵌合片３６を嵌合用切欠３８に嵌め込まして底部を形成している。ここで、嵌合片３５の根元の角Ｐと嵌合用切欠３８の角Ｑとは相互に食い込み合っているが、嵌合片の角Ｐと嵌合用切欠の角Ｑとの食い込み度合いは浅い。そのため、外部から加わる偶発的な力により、嵌合片３５、３６が嵌合用切欠３８から外れ、底部が型崩れするという難点があった。
【０００３】
【発明が解決しようとする課題】
以上、上記従来の段ボールケースには幾つかの問題点があった。蓋部については、嵌合片が中の物に当たるので、蓋面片を閉じ難かった。また、蓋面片が簡単に外れ易かった。一方、一旦蓋面片を閉じてしまうと、蓋面片を開け難かった。底部は、組みあがった段ボールケースをハンドリングする際、嵌合片の角と嵌合用切欠の角との食い込み度合いが浅いため、外部から力が加わることにより底部が型崩れするという難点があった。
【０００４】
そこで、本発明の目的は、蓋部については、中に青果物等が一杯詰まっていても、蓋面片を閉じ易いことである。そして、物を一旦中に入れて閉じたら蓋面片が外れ難く、一方、中の確認等のためには開け易いことである。底部については、型崩れ易い等の不具合を確実に無くすことである。しかも、段ボールを折り上げる際、その姿勢を保持するにあたり、留め金具のワイヤを使用しない段ボールケースを提供することにある。
【０００５】
そして、本発明の付随する目的は、一ケース約１０〜１５Ｋｇｆの重さの大根等青果が入っている段ボールケースを段積みした際、横から引き抜き易い構造にすることである。
【０００６】
【課題を解決するための手段】
本発明による段ボールケースは、１枚の段ボールから箱状に折り上げられるものであって、蓋部と底部を上下面に折り曲げ一体連接した周壁部とからなる。蓋部は蓋面片が一体連接し、相互に蓋部を形成している。更に、嵌合片を嵌合用切欠に嵌め込ますとともに、蓋面片には舌片を備え、段ボールケースの内側から上記嵌合片を押し上げている。底部は底面片が一体連接し、相互に関連係合して、嵌合片を嵌合用切欠に嵌め込ますとともに、折り込み底部の凹みを形成している。また、嵌合片には掛止孔および掛止角を備えている。
【０００７】
【発明の実施の形態】
以下に、本発明の実施例について、順次説明する。先ず、第１実施例に就いて、図３〜図８を参照しながら説明する。図３は段ボールケースを一枚の段ボールに展開した状態の平面図である。蓋部の折り上げ途中の状態を図７に、同じく底部の閉じ終えた凹み状態を図８に、それぞれ斜視図で示した。
【０００８】図３を説明する。蓋部１０は蓋面片１１〜１４からなる。蓋面片１１、１３の各両先端部に嵌合片１５を、この嵌合片の先端部には指孔切欠５７を備えている。蓋面片１２、１４の各両側に嵌合用切欠５８と舌片５９を備え、この舌片は折線５５で折れ曲がる。周壁部は周壁面２１〜２４からなる。周壁面２１には糊代片２５を備えている。また、底部は底面片３１〜３４からなる。底面片３１の両先端部には嵌合片３５を、この嵌合片にはそれぞれ掛止角５３、５４を備えている。底面片３３には嵌合片３６、３７と嵌合用切欠３８を、また、嵌合片３６に掛止孔５１を嵌合片３７には掛止孔５２を備えている。底面片３２、３４には嵌合片３９を備えている。
【０００９】図４は蓋部の折り上げ途中の状態を示す。蓋面片１１に嵌合片１５を備え、この嵌合片は折線５６で折れ曲がる。蓋面片１４には嵌合用切欠５８と舌片５９を備え、この舌片は折線５５で折れ曲がる。嵌合片１５は嵌合用切欠５８に挿入、嵌め込まされる。同時にこの嵌合片の両先端は段ボールの折り曲げ復元力により、段ボール蓋面片１４の内側で嵌合用切欠５８の孔の両側に開く。また、舌片５９は段ボールケースの内側から嵌合片１５を押し上げる。図５はそれらの関係を示す一部断面図である。嵌合片１５に対し、舌片５９の折線５５を梃子の支点として段ボールの折り曲げ復元力Ｂが作用する。以上、一組の嵌め込みによる蓋面片を閉じる状態を図示、説明したが、蓋部他の３組の嵌め込みについても同様である。
【００１０】図６は底部を閉じ終えた状態を示す下面図である。底面片３１〜３４が一体連接し、相互に関連係合して、折り込み底部３０の凹みを形成している。更に、先端が鳩尾状に拡がった嵌合片３５および嵌合片３６を切欠３８に嵌め込まして底部を閉じている。この時、掛止孔５１および５２は、それぞれ掛止角５４および５３と相互に食い込み合っている。このため、嵌合片３５と嵌合片３６とが係合し、また、嵌合片３５と嵌合片３７とが係合し合って底部を形成している。上記の掛止孔の開口は糊代片２５側に向いている。折り上がった段ボールケースには段ボールの折癖による偶力Ｆが作用する。
【００１１】最後に、第実施例１の底部を折り上げる手順について、図３、図６を参照しながら説明する。先ず、底面片３３を外から段ボールケースの内側へ押し下げる。次に、底面片３２および３４を内側へ押し下げ、嵌合片３９を切欠３８に嵌め込ます。最後に、底面片３１を内側へ押し下げ、嵌合片３５を切欠３８に嵌め込ます。以上により、底面片３１〜３４が一体連接し、相互に関連係合して、折り込み底部３０の凹みが形成される。
【００１２】以上、第１実施例は嵌合片を嵌合用切欠けに嵌め込むことによって段ボールを折り上げる方式である。その際、姿勢を保持するにあたり、留め金具のワイヤを使用しなくて済む。この場合、金具等異物の混入の恐れが無いので、リサイクルに好都合である。また、底面片が一体連接し、相互に関連係合して、折り込み底部を形成しているとともに、嵌合片の先端が鳩尾状に拡がり嵌め合っているので、段ボールケースの中の物が大根等の重量物であっても、底抜けすることが無く安心である。更に、先端が鳩尾状に拡がった嵌合片に備えた掛止孔５１、５２が、それぞれ掛止角５４、５３と係合し合っている。このため、嵌合片と嵌合用切欠との食い込み度合いが深くなるので、組みあがった段ボールケースをハンドリングする際に、外部から偶発的な力および偶力が重なって大きな外力となって発生しても、嵌合片が嵌合用切欠から外れることが無い。付随的な効果として、この折り込み底部は凹みを形成しているので、一ケース当り約１０〜１５Ｋｇｆの重さの大根等青果が入っている段ボールケースを多段積みした際、途中の段から横抜き易い。また、蓋部では、蓋面片を閉じたり、開けたりする際に効果がある。閉じ易く、また、物を一旦中に入れた後でも、蓋面片が外れ難いものである。蓋を閉じる際は、嵌合片１５が折れ線５６で折れ曲がるので、嵌合片を嵌合用切欠に挿入し易く、蓋面片を閉じるのが容易である。また、嵌合片１５の両先端は段ボールケースの内側で嵌合用切欠５８の孔の両側へ開くので、一度挿入した蓋面片は外れ難い。更に、舌片５９には折線５５を梃子の支点として段ボールの折り曲げによる復元力がばね力として発生し、舌片が嵌合片を段ボールケースの内側から押すので、嵌合片が外れ難い。また、嵌合片に指孔切欠５７を備えたので、嵌合用切欠５８の孔が小さくても指が入り易く、中の確認等のために蓋面片を開けるのが楽である。もともと、嵌合用切欠の孔の大きさは蓋面片の強度上小さくする必要がある。指孔切欠を備えることにより、嵌合用切欠の孔は小さくても、指の入るスペースを確保し、改善できたのである。
【００１３】次に、第２実施例について、図９〜図１１を参照しながら説明する。図９は段ボールケースを一枚の段ボールに展開した状態の平面図である。その蓋部の折り上げ途中の状態を示す斜視図で図１０に示した。
【００１４】図９を説明する。この第２実施例の底部は第一実施例と同じで、蓋部が異なる。第１実施例と比べての相違点は、蓋面において、嵌合片を嵌合用切欠に挿嵌する方法である。蓋部１０は蓋面片１１〜１４からなる。蓋面片１１、１３の各両側に舌片５９を備え、これら舌片は折れ線６７で折れ、嵌合用切欠５８を形成している。蓋面片１２、１４の各両先端部に嵌合片１５を備え、これらの嵌合片は掛止角６５と、嵌合用切欠５８には掛止片６６を備えている。周壁部は周壁面２１〜２４らなる。周壁面２１には糊代片２５を備えている。また、底部は底面片３１〜３４からなる。底面片３１の両先端部には嵌合片３５を、この嵌合片には掛止角５３、５４を備えている。嵌合片３３には嵌合片３６、３７と嵌合用切欠３８を、これらの嵌合片には掛止孔５１、５２を備えている。また、底面片３２、３４には嵌合片３９を備えている。
【００１５】図１０は蓋部の折り上げ途中の状態を示す。蓋面片１２、１４の各両端に嵌合片１５を備え、折線６１で折れ曲がる。この点は第１実施例と比べて相違する。蓋面片１１、１３の各両側には嵌合用切欠５８と舌片５９を備え、これら舌片は折線６７で折れ曲がる。ここで、嵌合用切欠５８の孔は嵌合片１５を挿嵌する方向に円弧状に形成されている。嵌合片１５は嵌合用切欠５８に挿嵌されるとともに、この嵌合片の掛止角６５が掛止片６６に係合され、更に、嵌合片１５は掛止片６８に係合される。また、舌片５９は段ボールケースの中から嵌合片１５を押し上げる。図１１はそれら関係を示すもので、図１０のＣ−Ｃ矢視断面図である。嵌合片１５に対し、舌片５９により折線６７を梃子の支点として段ボールの折り曲げによる復元力Ｄが作用する。ここで、嵌合片１５を嵌合用切欠５８の中に挿嵌した時、舌片５９の先端部Ｈは嵌合片１５の先端部Ｇより出っ張っていることが重要である。この点も第１実施例と比べて相違する。以上、一組の嵌合による蓋面片の閉じ方について図示、説明したが、蓋部の他の３組の嵌め込みについても同様である。
【００１６】以上のとおり、第２実施例では、蓋面片１４は折れ線６１で折れ曲がるので、嵌合片１５を嵌合用切欠５８に挿入し易い。また、青果物が中に一杯詰まっていても、舌片５９の先端が嵌合片１５の先端より出っ張っているため、嵌合片１５の先端が直接青果物にぶつかることが無く、挿入し易い。以上、蓋面片を閉じ易い。また、嵌合片１５の掛止角６５は段ボールケースの内側で掛止片６６に係合されるので、蓋面片は外れ難い。更に、舌片５９が折線６７を梃子の支点として段ボールの折り曲げによる復元力がばね力として働くので、嵌合片１５を段ボールケースの内側から押すことになって嵌合片が外れ難い。以上、蓋面片が外れ難い。第１実施例と比較して相違する点をまとめると、以下の通りである。蓋面片１２、１４の各両端に嵌合片１５を備え、折線６１で折れ曲がるので嵌合片を嵌合用切欠の中に挿嵌し易い。また、嵌合片を嵌合用切欠の中に挿嵌した時、舌片の先端部はこの嵌合片の先端部より出っ張っている。このため、ダンボールケースの中に青果物等が一杯詰まっていても、嵌合片の先端が中の物に直接ぶつかることが無いので、嵌合片１５を挿嵌し易い。以上、蓋面片を閉じ易い。また、嵌合片の先端で青果物等生物を傷つけることが無い。
【００１７】次に、第３実施例について、図１２〜図１４を参照しながら説明する。図１２は段ボールケースを一枚の段ボールに展開した状態の平面図である。その蓋部の折り上げ途中の状態を図１３に、蓋部を閉じ終えた状態を図１４に示した。
【００１８】図１２を説明する。この第３実施例の底部も第１、２実施例と同じで、蓋部が異なる。第１、第２実施例と比べての相違点は、蓋面において、嵌合片と蓋面片との挿嵌および蓋面片を閉じる方法で、主たる嵌合片を蓋面片の外側に出すことにある。蓋部１０は蓋面片１１〜１４からなる。蓋面片１１、１３の各両端に嵌合片１７を備えている。蓋面片１２、１４の各両端に嵌合片１５を備え、更に、この嵌合片の間に主たる嵌合片１６を備えている。また、蓋面片１２、１４の両側に嵌合用切欠１８を、蓋面片１１、１３の両側に嵌合用切欠１９を備えている。一方、底部は底面片３１〜３４からなる。底面片３１の両先端部には嵌合片３５を、この嵌合片には掛止角５３、５４を備えている。嵌合片３３には嵌合片３６、３７と嵌合用切欠３８を、これらの嵌合片には掛止孔５１、５２を備えている。また、底面片３２、３４には嵌合片３９を備えている。
【００１９】図１３は蓋部の折り上げ途中の状態を示す斜視図である。図１４は蓋部を閉じ終えた状態を示す斜視図である。これらの図を参照しながら説明する。蓋面片１２、１４の各両端に嵌合片１５とこれらの間に主たる嵌合片１６を備え、嵌合片１５は折れ線５６で折れ曲がる。また、蓋面片１１、１３の各両端に嵌合片１７を備えている。ここで、嵌合片１５は折れ線５６で折れ曲がって、蓋面片１１の内側に挿入される。この時、蓋面片１１は嵌合用切欠１８に嵌め込まれる。主たる嵌合片１６は嵌合用切欠１９に嵌め込まれ蓋面片１１の外側に重なる。更に、嵌合片１６の外側に嵌合片１７が重なる。即ち、蓋面片１１を嵌合片１５と嵌合片１６とで挟み、更に、嵌合片１６を蓋面片１１と嵌合片１７とで挟み合う構成をなしている。段ボールケースの内側から外側に向けて、嵌合片１５、蓋面片１１、嵌合片１６および嵌合片１７の順序で重なり合った嵌め合い構造である。以上、蓋部を閉じ終えると図１４に示すように、主たる嵌合片１６が外側へ盛り上がっている。以上、一組の嵌合による蓋面片の閉じ方について図示、説明したが、蓋部の他の３組の嵌め込みについても同様である。
【００２０】最後に、蓋部を折り上げる手順について、図１３、図１４を参照しながら説明する。先ず、嵌合片１５を蓋面片１１の内側に挿入する。嵌合片１５は折れ線５６で折れ曲がるので挿入は容易である。次に、嵌合片１６を蓋面片１１の外側に嵌め込ますとともに、嵌合片１７を嵌合片１６の外側に嵌め込ます。蓋部の他の３組の折り上げについても同様である。
【００２１】以上、第３実施例では以下の通り、第１、２実施例と比較して相違する。主たる嵌合片がダンボールケースの外側に出るため、ダンボールケースの中に青果物等が一杯詰まっていても、この嵌合片の先端が中の物に直接ぶつかることが無く、蓋片を閉じ易い。逆に、この嵌合片が蓋面片の外側に出るので、蓋面片が外側へ盛り上がりを形成し、青果物等を一杯詰めることができる。また、嵌合片の先端で青果物等生物を傷めることが無い。
【発明の効果】
以上の説明によって明らかなように、本発明によるワイヤーレス段ボールケースは、従来のものに比べて以下に列挙したような優れた効果がある。
（１）嵌合片を嵌合用切欠けに嵌め込むことによって段ボールを閉じる方式なので、段ボールを折り上げる際、その姿勢を保持するにあたり、留め金具のワイヤを使用しなくて済む。この場合、金具等異物の混入の恐れが無いので、リサイクルに好都合である。
（２）底面片が一体連接し、相互に関連係合して、折り込み底部を形成していることおよび嵌合片の先端が鳩尾状に拡がり嵌め合っている。このため、中の物が大根等の重量物であっても、底抜けすることが無く安心である。更に、先端が鳩尾状に拡がった嵌合片を嵌合用切欠に嵌め込まして底部を閉じるとともに、掛止孔が掛止角と係合し合っている。嵌合片と嵌合用切欠との食い込み度合いが深いので、折り上がった段ボールケースをハンドリングする際に、底部に外部から偶発的な力および偶力が重なって大きな外力が発生しても、嵌合片が切欠から外れることが無い。
（３）蓋面片を閉じたり、開けたりする際に効果がある。閉じ易く、また、物を一旦中に入れた後、蓋面片が外れ難いものである。蓋を閉じる際は、嵌合片が折れ線で折れ曲がるので、嵌合片を嵌合用切欠に挿入し易く、蓋面片を閉じるのが容易である。また、嵌合片の両先端は段ボールケースの内側で嵌合用切欠の孔の両側へ開くので、一度挿入した蓋面片は外れ難い。更に、舌片には折線を梃子の支点として段ボールの折り曲げによる復元力がばね力として発生し、舌片が嵌合片を段ボールケースの内側から押すので、嵌合片が外れ難い。
（４）嵌合片に指孔切欠片を備えたので、嵌合用切欠の孔が小さくても指が入り易く、中の確認等のためには開けるのが楽である。もともと、嵌合用切欠の孔の大きさは蓋面片の強度上小さくする必要がある。指孔切欠を備えることにより、指の入るスペースを確保し、改善できた。
（５）嵌合片を嵌合用切欠の中に挿嵌した時、舌片の長さはこの嵌合片の先端部の出っ張りより長い。このため、ダンボールケースの中に青果物等が一杯詰まっていても、嵌合片の先端が中の物に直接ぶつかることが無く、蓋片を閉じ易い。嵌合片の先端で青果物等生物を傷つけることが無い。
（６）嵌合片が蓋面片の外側に出るので、蓋部が盛り上がりを形成し、青果物等を一杯詰めることができる。
（７）付随的な効果として、この折り込み底部は凹みを形成しているので、一ケース当り約１０〜１５Ｋｇｆの重さの大根等青果が入っている段ボールケースを多段積みした際、途中の段から横抜きし易い。
【図面の簡単な説明】
【図１】従来の例を示すもので、段ボールケース蓋部の折り上げ途中の状態をを示す斜視図である。
【図２】同上、底部を閉じ終えた状態を示す下面図である。
【図３】本発明の第１実施例を示すもので、段ボールケースを一枚の段ボールに展開した状態の平面図である。
【図４】同上、蓋部の折り上げ途中の状態を示す斜視図である。
【図５】同上、図４のＡ−Ａ矢視断面図ある。
【図６】同上、底部を閉じ終えた状態を示す下面図である。
【図７】同上、蓋部の折り上げ途中の状態を示す斜視図である。
【図８】同上、底部を閉じ終えた凹み状態を示す斜視図である。
【図９】本発明の第２実施例を示すもので、段ボールケースを一枚の段ボールに展開した状態の平面図である。
【図１０】同上、蓋部の折り上げ途中の状態を示す斜視図である。
【図１１】同上、図１０のＣ−Ｃ矢視断面図である。
【図１２】本発明の第３実施例を示すもので、段ボールケースを一枚の段ボールに展開した状態の平面図である。
【図１３】同上、蓋部の折り上げ途中の状態を示す斜視図である。
【図１４】同上、蓋部を閉じ終えた状態を示す斜視図である。
【符号の説明】
１０蓋部
１１〜１４蓋面片
１５嵌合片
１６嵌合片
１７嵌合片
１８嵌合用切欠
１９嵌合用切欠
２０周壁部
２１〜２４周壁面片
２５糊代片
３０底部
３１〜３４底面片
３５〜３７嵌合片
３８嵌合用切欠
３９嵌合片
５１、５２掛止孔
５３、５４掛止角
５５折線
５６折線
５７指孔切欠
５８嵌合用切欠
５９舌片
６１折線
６５掛止角
６６掛止片
６７折線
６８掛止片
Ｂ、Ｄ復元力
Ｆ偶力
Ｇ、Ｈ先端部
Ｐ、Ｑ角[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is a cardboard case formed by folding a single cardboard into a box shape. The lid is easy to close, and once the object is put in, the lid does not come off easily, while providing easy opening for checking inside. With respect to the bottom portion, a configuration is provided that can reliably eliminate problems such as a shape collapse or a thing put in the bottom portion falling off by weight. In addition, vegetables and fruits having a weight such as radish can be packed in a cup. In addition, the present invention relates to a cardboard case that does not use a wire of a clasp to hold the posture when the cardboard is folded up.
[0002]
[Prior art]
When folding up the corrugated cardboard, in order to maintain the posture, a wire of a fastener is often used. On the other hand, a conventional cardboard case not using a wire has the following configuration. The cover is folded up into a box shape from one piece of corrugated cardboard, and has a lid portion and a peripheral wall portion whose bottom portion is bent up and down and connected integrally. The lid part is integrally connected with a lid face piece. The bottom portion is integrally connected with the bottom pieces so as to form a folded bottom portion. Hereinafter, FIGS. 1 and 2 will be described. FIG. 1 is a perspective view showing a state in which the cardboard case lid is being folded up. The lid part 10 is integrally connected with lid face pieces 11 to 14, and further, the fitting piece 15 is fitted in the fitting notch 58 to close the lid face piece. In addition, the hole of the notch for fitting needs to be made as small as possible in view of the strength of the cover surface piece 14. Here, when fruits and the like are fully packed, the tip of the fitting piece 15 hit an object, and it was difficult to insert the fitting piece. Also, once the object is put inside, the fitting piece 15 is easily detached from the fitting notch 58. On the other hand, since the hole of the fitting notch is small for checking inside, the finger does not enter and the lid is not inserted. It was difficult to open the face piece. Next, FIG. 2 shows a bottom view in a bottom view. At the bottom, the bottom pieces 31 to 34 are integrally connected and engaged with each other to form the folded bottom 30. Further, the fitting piece 35 and the fitting piece 36 whose tips are spread like a dovetail are fitted into the fitting notch 38 to form a bottom. Here, the root angle P of the fitting piece 35 and the corner Q of the fitting notch 38 bite each other, but the degree of biting between the corner P of the fitting piece and the corner Q of the fitting notch is shallow. For this reason, there was a problem that the fitting pieces 35 and 36 were disengaged from the fitting notch 38 due to an accidental force applied from the outside, and the bottom part was out of shape.
[0003]
[Problems to be solved by the invention]
As described above, the conventional cardboard case has several problems. As for the lid, the fitting piece hit the inside, so it was difficult to close the lid face piece. Also, the lid piece was easily detached. On the other hand, once the lid piece was closed, it was difficult to open the lid piece. When handling the assembled corrugated cardboard case, the bottom has a problem in that the corner of the fitting piece and the corner of the fitting notch are so shallow that the bottom is out of shape due to external force.
[0004]
Therefore, an object of the present invention is to make it easy to close the lid piece even if the lid is full of fruits and vegetables or the like. Then, once the object is put in and closed, the lid face piece is hard to come off, and on the other hand, it is easy to open for checking inside. As for the bottom part, it is necessary to surely eliminate problems such as easy collapse. In addition, an object of the present invention is to provide a cardboard case which does not use a wire of a fastener for holding the posture when the cardboard is folded up.
[0005]
An additional object of the present invention is to provide a structure in which a cardboard case containing fruits and vegetables such as radish weighing about 10 to 15 kgf per case is easily stacked and pulled out from the side.
[0006]
[Means for Solving the Problems]
The cardboard case according to the present invention is a box that is folded up from one piece of cardboard into a box shape, and includes a lid portion and a peripheral wall portion whose bottom portion is folded up and down to be integrally connected. The lid portions are integrally connected with the lid face pieces to form lid portions with each other. Further, the fitting piece is fitted into the fitting notch, and a tongue piece is provided on the lid face piece, and the fitting piece is pushed up from the inside of the cardboard case. At the bottom, the bottom pieces are integrally connected and engaged with each other, so that the fitting pieces are fitted into the fitting notches, and the recesses of the folded bottom are formed. The fitting piece has a hook hole and a hook angle.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, examples of the present invention will be sequentially described. First, a first embodiment will be described with reference to FIGS. FIG. 3 is a plan view showing a state in which the cardboard case is developed into one cardboard. FIG. 7 is a perspective view showing a state in which the lid is being folded up, and FIG.
Referring to FIG. The lid part 10 is composed of lid surface pieces 11 to 14. Fitting pieces 15 are provided at both ends of the lid surface pieces 11 and 13, and finger hole cutouts 57 are provided at the tips of the fitting pieces. A notch 58 for fitting and a tongue piece 59 are provided on both sides of the lid face pieces 12 and 14, and the tongue piece is bent at a fold line 55. The peripheral wall portion includes peripheral wall surfaces 21 to 24. The peripheral wall surface 21 has a glue margin piece 25. In addition, the bottom portion is composed of bottom pieces 31 to 34. Fitting pieces 35 are provided at both ends of the bottom piece 31, and engaging angles 53 and 54 are provided on the fitting pieces, respectively. The bottom piece 33 has fitting pieces 36 and 37 and a fitting notch 38, the fitting piece 36 has a hooking hole 51, and the fitting piece 37 has a hooking hole 52. Bottom pieces 32 and 34 are provided with fitting pieces 39.
FIG. 4 shows a state in which the lid is being folded up. The cover piece 11 is provided with a fitting piece 15, which is bent at a folding line 56. The cover piece 14 is provided with a notch 58 for fitting and a tongue piece 59 which bends at a fold line 55. The fitting piece 15 is inserted and fitted into the fitting notch 58. At the same time, both ends of the fitting piece are opened on both sides of the hole of the fitting notch 58 inside the cardboard cover face piece 14 by the bending and restoring force of the cardboard. The tongue piece 59 pushes up the fitting piece 15 from inside the cardboard case. FIG. 5 is a partial sectional view showing the relationship. The bending restoring force B of the cardboard acts on the fitting piece 15 using the folding line 55 of the tongue piece 59 as a fulcrum of leverage. As described above, the state in which the lid face piece is closed by one set of fitting is illustrated and described, but the same applies to the fitting of the lid and the other three sets.
FIG. 6 is a bottom view showing a state in which the bottom has been closed. The bottom pieces 31-34 are integrally connected and engage with each other to form a recess in the folded-in bottom 30. Further, the fitting piece 35 and the fitting piece 36 whose tips spread in a dovetail shape are fitted into the notches 38 to close the bottom. At this time, the hook holes 51 and 52 are mutually engaged with the hook angles 54 and 53, respectively. For this reason, the fitting piece 35 and the fitting piece 36 are engaged, and the fitting piece 35 and the fitting piece 37 are engaged with each other to form a bottom. The opening of the above-mentioned hook hole faces the glue margin piece 25 side. A couple F acts on the folded cardboard case due to the habit of the cardboard.
Finally, the procedure for folding up the bottom of the first embodiment will be described with reference to FIGS. First, the bottom piece 33 is pushed down from the outside to the inside of the cardboard case. Next, the bottom pieces 32 and 34 are pushed inward, and the fitting pieces 39 are fitted into the notches 38. Finally, the bottom piece 31 is pushed down and the fitting piece 35 is fitted into the notch 38. As described above, the bottom pieces 31 to 34 are integrally connected to each other and engage with each other to form a recess of the folded-in bottom portion 30.
As described above, in the first embodiment, the cardboard is folded up by fitting the fitting pieces into the fitting notches. At that time, it is not necessary to use the wire of the fastener for maintaining the posture. In this case, there is no risk of foreign matter such as metal fittings, which is convenient for recycling. In addition, since the bottom pieces are integrally connected and engaged with each other to form a folded bottom, and the tips of the fitting pieces are spread and fitted in a dovetail shape, the objects in the cardboard case can be radished. Even if the weight is heavy, it is safe without falling out. Furthermore, engaging holes 51 and 52 provided in the fitting pieces whose tips extend in a dovetail shape are engaged with engaging angles 54 and 53, respectively. For this reason, since the degree of bite between the fitting piece and the fitting notch becomes deeper, when handling the assembled cardboard case, an accidental force and a couple force from the outside are generated as a large external force due to overlapping. Also, the fitting piece does not come off from the fitting notch. As an incidental effect, this folded bottom forms a recess, so when stacking cardboard cases containing fruits and vegetables such as radishes weighing about 10 to 15 Kgf per case in multiple stages, it is necessary to pull out from the middle stage easy. In addition, the lid is effective when the lid face piece is closed or opened. It is easy to close, and it is difficult for the lid piece to come off even after the object is once put inside. When the lid is closed, the fitting piece 15 is bent along the fold line 56, so that the fitting piece can be easily inserted into the fitting notch, and the lid face piece can be easily closed. Further, since both ends of the fitting piece 15 open to both sides of the hole of the fitting notch 58 inside the corrugated cardboard case, the lid face piece once inserted is hard to come off. Further, a restoring force due to the bending of the cardboard is generated as a spring force on the tongue piece 59 with the fold line 55 as a fulcrum of the lever, and the tongue piece pushes the fitting piece from the inside of the cardboard case, so that the fitting piece is hard to come off. In addition, since the fitting piece is provided with the finger hole notch 57, even if the hole of the fitting notch 58 is small, a finger can easily enter, and it is easy to open the lid face piece for checking inside. Originally, it is necessary to reduce the size of the hole of the notch for fitting in view of the strength of the cover surface piece. By providing the finger hole notch, even if the hole of the fitting notch is small, a space for a finger can be ensured and improved.
Next, a second embodiment will be described with reference to FIGS. FIG. 9 is a plan view showing a state in which the cardboard case is developed into one cardboard. FIG. 10 is a perspective view showing a state in which the lid is being folded.
Referring to FIG. The bottom of the second embodiment is the same as the first embodiment, but the lid is different. The difference from the first embodiment is the method of inserting the fitting pieces into the fitting notches on the lid surface. The lid part 10 is composed of lid surface pieces 11 to 14. Tongue pieces 59 are provided on both sides of the cover surface pieces 11 and 13, and these tongue pieces are bent along a fold line 67 to form a notch 58 for fitting. Fitting pieces 15 are provided at both ends of the cover face pieces 12 and 14, and these fitting pieces have a hook angle 65, and a fitting notch 58 has a hook piece 66. The peripheral wall portion includes peripheral wall surfaces 21 to 24. The peripheral wall surface 21 has a glue margin piece 25. In addition, the bottom portion is composed of bottom pieces 31 to 34. At both ends of the bottom piece 31, fitting pieces 35 are provided, and the fitting pieces are provided with hook angles 53 and 54. The fitting piece 33 has fitting pieces 36 and 37 and a fitting notch 38, and these fitting pieces have hook holes 51 and 52. The bottom pieces 32 and 34 are provided with fitting pieces 39.
FIG. 10 shows a state in which the lid is being folded up. Fitting pieces 15 are provided at both ends of the cover face pieces 12 and 14, and are bent at a folding line 61. This point is different from the first embodiment. A notch 58 for fitting and a tongue piece 59 are provided on both sides of the lid face pieces 11 and 13, and these tongue pieces are bent at a folding line 67. Here, the hole of the fitting notch 58 is formed in an arc shape in the direction in which the fitting piece 15 is inserted. The fitting piece 15 is inserted into the fitting notch 58, the engaging angle 65 of the fitting piece is engaged with the engaging piece 66, and the fitting piece 15 is engaged with the engaging piece 68. You. The tongue piece 59 pushes up the fitting piece 15 from inside the cardboard case. FIG. 11 shows the relationship, and is a cross-sectional view taken along the line CC of FIG. A restoring force D by bending the cardboard is applied to the fitting piece 15 by the tongue piece 59 with the folding line 67 as a fulcrum of leverage. Here, when the fitting piece 15 is inserted into the fitting notch 58, it is important that the tip H of the tongue piece 59 protrudes from the tip G of the fitting piece 15. This point is also different from the first embodiment. Although the method of closing the cover face piece by one set of fitting has been illustrated and described above, the same applies to the fitting of the other three sets of the cover.
As described above, in the second embodiment, since the cover surface piece 14 is bent at the fold line 61, the fitting piece 15 can be easily inserted into the fitting notch 58. Further, even if fruits and vegetables are fully packed, the tip of the tongue piece 59 protrudes from the tip of the fitting piece 15, so that the tip of the fitting piece 15 does not directly hit the fruits and vegetables and is easy to insert. As described above, the lid surface piece is easily closed. In addition, since the latching angle 65 of the fitting piece 15 is engaged with the latching piece 66 inside the cardboard case, the lid face piece does not easily come off. Furthermore, since the tongue piece 59 uses the folding line 67 as a fulcrum of leverage and the restoring force due to the bending of the cardboard acts as a spring force, the fitting piece 15 is pushed from the inside of the cardboard case, so that the fitting piece does not easily come off. As described above, the lid piece is hard to come off. The differences from the first embodiment are summarized as follows. Fitting pieces 15 are provided at both ends of the cover face pieces 12 and 14, and the fitting pieces 15 are bent at the folding line 61, so that the fitting pieces can be easily inserted into the fitting notches. When the fitting piece is inserted into the fitting notch, the tip of the tongue protrudes from the tip of the fitting piece. Therefore, even if the cardboard case is full of fruits and vegetables, the fitting piece 15 can be easily inserted because the tip of the fitting piece does not directly hit the inside. As described above, the lid surface piece is easily closed. In addition, the tip of the fitting piece does not hurt creatures such as fruits and vegetables.
Next, a third embodiment will be described with reference to FIGS. FIG. 12 is a plan view showing a state in which the cardboard case is developed into one cardboard. FIG. 13 shows a state in which the lid is being folded, and FIG. 14 shows a state in which the lid has been closed.
Referring to FIG. The bottom of the third embodiment is the same as the first and second embodiments, and the lid is different. The difference from the first and second embodiments is that the main fitting piece is placed outside the lid piece by inserting the fitting piece and the lid piece and closing the lid piece on the lid face. To put it out. The lid part 10 is composed of lid surface pieces 11 to 14. Fitting pieces 17 are provided at both ends of the cover face pieces 11 and 13. Fitting pieces 15 are provided at both ends of the cover pieces 12 and 14, and a main fitting piece 16 is provided between the fitting pieces. Further, fitting notches 18 are provided on both sides of the cover pieces 12 and 14, and fitting notches 19 are provided on both sides of the cover pieces 11 and 13. On the other hand, the bottom is composed of bottom pieces 31-34. At both ends of the bottom piece 31, fitting pieces 35 are provided, and the fitting pieces are provided with hook angles 53 and 54. The fitting piece 33 has fitting pieces 36 and 37 and a fitting notch 38, and these fitting pieces have hook holes 51 and 52. The bottom pieces 32 and 34 are provided with fitting pieces 39.
FIG. 13 is a perspective view showing a state in which the lid is being folded up. FIG. 14 is a perspective view showing a state in which the lid has been closed. Description will be made with reference to these figures. A fitting piece 15 and a main fitting piece 16 are provided between the both ends of the cover face pieces 12 and 14, and the fitting piece 15 is bent at a fold line 56. In addition, fitting pieces 17 are provided at both ends of the cover pieces 11 and 13. Here, the fitting piece 15 is bent at the fold line 56 and inserted inside the lid face piece 11. At this time, the cover surface piece 11 is fitted into the fitting notch 18. The main fitting piece 16 is fitted in the fitting notch 19 and overlaps the outside of the lid face piece 11. Further, the fitting piece 17 overlaps the outside of the fitting piece 16. That is, the cover piece 11 is sandwiched between the fitting piece 15 and the fitting piece 16, and the fitting piece 16 is further sandwiched between the cover piece 11 and the fitting piece 17. A fitting structure in which the fitting pieces 15, the cover face pieces 11, the fitting pieces 16 and the fitting pieces 17 are overlapped in this order from the inside to the outside of the cardboard case. As described above, when the lid is closed, the main fitting piece 16 is raised outward as shown in FIG. Although the method of closing the cover face piece by one set of fitting has been illustrated and described above, the same applies to the fitting of the other three sets of the cover.
Finally, the procedure for folding up the lid will be described with reference to FIGS. First, the fitting piece 15 is inserted inside the lid piece 11. Since the fitting piece 15 is bent at the bending line 56, the insertion is easy. Next, the fitting piece 16 is fitted on the outside of the lid piece 11, and the fitting piece 17 is fitted on the outside of the fitting piece 16. The same applies to the other three sets of the lid.
As described above, the third embodiment differs from the first and second embodiments as follows. Since the main fitting piece comes out of the cardboard case, even if a fruit or the like is fully packed in the cardboard case, the tip of the fitting piece does not directly hit the inside, and the lid piece is easily closed. Conversely, since this fitting piece comes out of the lid face piece, the lid face piece forms a bulge to the outside, and can be filled with fruits and vegetables. Moreover, the tip of the fitting piece does not damage living things such as fruits and vegetables.
【The invention's effect】
As is apparent from the above description, the wireless cardboard case according to the present invention has the following excellent effects as compared with the conventional case.
(1) Since the cardboard is closed by fitting the fitting piece into the fitting notch, it is not necessary to use the wire of the fastener for holding the posture when the cardboard is folded up. In this case, there is no risk of foreign matter such as metal fittings, which is convenient for recycling.
(2) The bottom pieces are integrally connected and associated with each other to form a folded bottom, and the tips of the fitting pieces are spread and fitted in a dovetail shape. For this reason, even if the thing inside is a heavy thing, such as a radish, it does not run out and it is safe. Further, the fitting piece whose tip is spread in a dovetail shape is fitted into the fitting notch to close the bottom, and the engaging hole engages with the engaging angle. As the degree of engagement between the fitting piece and the fitting notch is deep, even when a large external force is generated due to accidental force and couple force overlapping from the outside at the bottom when handling the folded cardboard case, The piece does not fall out of the notch.
(3) It is effective when closing or opening the cover piece. It is easy to close, and it is difficult for the lid piece to come off once the object is put inside. When the lid is closed, the fitting piece is bent along a broken line, so that the fitting piece can be easily inserted into the fitting notch, and the lid face piece can be easily closed. Further, since both ends of the fitting piece are opened to both sides of the hole of the fitting notch inside the cardboard case, the lid face piece once inserted is hard to come off. Furthermore, a restoring force due to the bending of the cardboard is generated as a spring force on the tongue piece with the folding line as a fulcrum of the lever, and the tongue piece pushes the fitting piece from the inside of the cardboard case, so that the fitting piece does not easily come off.
(4) Since the fitting piece is provided with the finger hole notch piece, even if the hole of the fitting notch is small, a finger can easily enter, and it is easy to open it for checking inside. Originally, it is necessary to reduce the size of the hole of the notch for fitting in view of the strength of the cover surface piece. By providing the finger hole notch, the space for the finger was secured and improved.
(5) When the fitting piece is inserted into the fitting notch, the length of the tongue piece is longer than the protrusion of the tip of the fitting piece. For this reason, even if fruits and the like are fully packed in the cardboard case, the tip of the fitting piece does not directly hit the inside, and the lid piece is easily closed. The tip of the fitting piece does not hurt organisms such as fruits and vegetables.
(6) Since the fitting piece comes out of the lid face piece, the lid portion forms a swell, and can be filled with fruits and vegetables.
(7) As an additional effect, since the folded bottom forms a recess, when a cardboard case containing fruits and vegetables such as radish weighing about 10 to 15 kgf per case is stacked in multiple stages, the middle step Easy to remove from the side.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a conventional example, showing a state in which a cardboard case lid is being folded up.
FIG. 2 is a bottom view showing a state where the bottom is completely closed.
FIG. 3 is a plan view of the first embodiment of the present invention, in which a cardboard case has been developed into a single cardboard box.
FIG. 4 is a perspective view showing a state in which the lid is being folded up;
FIG. 5 is a sectional view taken along the line AA of FIG. 4;
FIG. 6 is a bottom view showing a state where the bottom is completely closed.
FIG. 7 is a perspective view showing a state in which the lid is being folded up;
FIG. 8 is a perspective view showing a dent state in which the bottom is completely closed.
FIG. 9 shows a second embodiment of the present invention, and is a plan view showing a state in which a cardboard case is developed into one cardboard.
FIG. 10 is a perspective view showing a state where the lid is being folded up;
FIG. 11 is a sectional view taken along the line CC in FIG. 10;
FIG. 12 shows a third embodiment of the present invention, and is a plan view showing a state in which a cardboard case is developed into one cardboard.
FIG. 13 is a perspective view showing a state in which the cover is being folded up;
FIG. 14 is a perspective view showing a state where the lid is completely closed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Cover part 11-14 Cover surface piece 15 Fitting piece 16 Fitting piece 17 Fitting piece 18 Fitting notch 19 Fitting notch 20 Peripheral wall part 21-24 Peripheral wall piece 25 Glue margin piece 30 Bottom part 31-34 Bottom piece 35 To 37 Fitting piece 38 Fitting notch 39 Fitting piece 51, 52 Hook hole 53, 54 Hook angle 55 Fold line 56 Fold line 57 Finger hole notch 58 Fitting notch 59 Tongue piece 61 Fold line 65 Hook angle 66 Hook piece 67 Folding line 68 Hanging piece B, D Restoring force F Couple G, H Tip P, Q angle

Claims

A single corrugated cardboard is folded up into a box shape, and is composed of a lid portion 10 and a peripheral wall portion 20 which is formed by bending a bottom portion 30 into upper and lower surfaces and integrally connected. The fitting pieces 35 and 36 are fitted into the fitting notches 38, and the engaging holes 36 and the engaging holes 51 are formed on the fitting pieces 37 and 37, respectively. In addition, the opening of the hook hole faces the glue margin piece 25 side, and furthermore, the fitting piece 35 and the fitting piece 37 are engaged, and the fitting piece 35 and the fitting piece 36 are engaged. Corrugated cardboard case with closed bottom.

The lid is provided with a fitting piece 15 at both ends of the lid pieces 11 and 13, a finger hole notch 57 on the fitting piece 15, and a fitting notch 58 on both sides of the lid pieces 12 and 14. The cardboard case according to claim 1, further comprising: a fitting piece (15) fitted in the fitting notch (58), and the fitting piece (15) being pushed up by the tongue piece (59) to close the lid.

The lid is provided with a fitting piece 15 at both ends of the lid pieces 12 and 14, a hook angle 65 on the fitting piece 15, and a fitting notch 58 on both sides of the lid pieces 11 and 13. The fitting piece (15) is fitted into the fitting notch (58), and the fitting piece (15) is pushed up by the tongue piece (59) to close the lid. Cardboard case.

The lid is provided with fitting pieces 16 on the cover pieces 12 and 14 and fitting pieces 15 on both ends of the cover pieces, and fitting pieces 17 on both ends of the cover pieces 11 and 13. Further, a notch 18 for fitting and a notch 19 for fitting are provided in the lid piece, and the fitting piece 16 is fitted through the notch for fitting so as to be sandwiched between the lid piece and the fitting piece 17. 2. The corrugated cardboard case according to claim 1, wherein the cover is closed.