【０００１】
【発明の属する技術分野】
本発明は、食品や医薬品等の保冷保温が必要な商品を配送する際などに用いる保冷保温容器に関する。
【０００２】
【従来の技術】
従来、保冷保温容器としては、遮熱シート製で平面形矩形状とする有底箱状ケース本体の、四側面の中の相対する一対の側面には断熱板を組み合わせて耐圧側壁部に形成すると共に、残る一対の側面となる側壁部、および四側面の下端縁全てに縫合される底面部は、共に遮熱シート製のままで折り畳み自在に形成した上、一対の側壁部の内側には、有底箱形ケース本体の隅角部に縫合された遊びシート部の他端側に接続され、断熱板を組み合わせてなる耐圧断熱層部が添設、離反可能に組み合わされると共に、一対の耐圧側壁部の中の何れか一方の上端縁には、断熱板の組み合わされた耐圧蓋部の一外周縁を開閉自在に縫合する一方、同耐圧蓋部の四外周縁の中の少なくとも一対の相対する外周縁から夫々上方に向けて連結帯部を突設すると共に、それら連結帯部に対応する一対の耐圧側壁部および／または一対の側壁部の夫々の下端寄り外側面で、前記連結帯部の突設構造に対応する箇所に、他の有底箱形ケース本体の耐圧蓋部の外側に突設、形成してある連結帯部との間で着脱可能とする仮着部を形成した断熱性格納ケースが提案されている（例えば、特許文献１参照。）。
【０００３】
【特許文献１】
特許第３３１２８７８号公報
【０００４】
【発明が解決しようとする課題】
特許文献１に記載された断熱性格納ケースは、耐圧蓋部の外周縁から連結帯部を突設し、ケース本体の下端部に仮着部を設け、ケースを積み重ねる際に下側のケースの連結帯部を上側のケースの仮着部に止めて崩れ防止を図っている。しかしながら、重い内容物を収容したケースを積み重ねる場合、耐圧蓋部自体は軽く、しかも開け易く閉められており、上側のケースは下側のケースの耐圧蓋部に設けられた連結片で止められているために、積み重ねたケースの搬送時に振動や衝撃が加わると、上側のケースが傾いて、下側のケースの耐圧蓋部が開いて上側のケースが倒れ易いという問題がある。
【０００５】
本発明は前記事情に鑑みてなされたもので、安定に積み重ねることができる保冷保温容器の提供を目的としている。
【０００６】
【課題を解決するための手段】
前記目的を達成するために本発明は、底面部とその周縁から立設した断熱性を有する側壁部とからなる容器本体と、該容器本体の開口を塞ぐ開閉可能な蓋とを備えた保冷保温容器であって、前記容器本体の上端部外面側に少なくとも一つの連結片が設けられ、且つ容器本体の下端部外面側に前記連結片が係止される係止部が設けられ、これらの連結片と係止部とは、複数の保冷保温容器を積み重ねた際、下側の保冷保温容器の連結片が上側の保冷保温容器の係止部に係止されるような位置に設けられていることを特徴とする保冷保温容器を提供する。
また本発明は、容器本体とその開口を塞ぐ開閉可能な蓋とを有し、該蓋を閉じた状態で中空直方体形状をなす遮熱シート外装体と、該遮熱シート外装体の内面側に沿って配置された発泡樹脂板を有する断熱材とを備えた保冷保温容器であって、前記容器本体の上端部外面側に少なくとも一つの連結片が設けられ、且つ容器本体の下端部外面側に前記連結片が係止される係止部が設けられ、これらの連結片と係止部とは、複数の保冷保温容器を積み重ねた際、下側の保冷保温容器の連結片が上側の保冷保温容器の係止部に係止されるような位置に設けられていることを特徴とする保冷保温容器を提供する。
本発明の保冷保温容器において、前記遮熱シート外装体の四辺の側壁部のうち一対の側壁部に前記断熱材を固定すると共に、残る一対の側壁部に前記断熱材を着脱可能に取り付けて耐圧側壁部を形成し、且つ前記蓋に前記断熱材を固定して耐圧蓋部を形成した構成とするのが好ましい。
また、前記容器本体の側壁部のうち、少なくとも隣り合う二つの辺のそれぞれに前記連結片と係止部を設けることが好ましい。
さらに、前記容器本体の側壁部に、複数の保冷保温容器が水平方向に沿って並べられた際、左右いずれか一方に隣接した保冷保温容器の係止部に係止させる連結片と、左右いずれか他方に隣接した保冷保温容器の連結片が係止される係止部とをさらに設けた構成とするのが好ましい。
【０００７】
【発明の実施の形態】
以下、図面を参照して本発明を説明する。
図１〜８は本発明の保冷保温容器の第１の例を示す図であり、図１は保冷保温容器１の耐圧蓋部５を開けた状態の斜視図、図２は同じ保冷保温容器１の耐圧蓋部５を閉めた状態の斜視図、図３は同じ保冷保温容器１の折り畳み準備状態の斜視図、図４は同じ保冷保温容器１の折り畳み状態を示す斜視図、図５は２つの保冷保温容器１を積み重ねた状態を示す斜視図、図６は同じ保冷保温容器の断面図、図７は３つの保冷保温容器１を積み重ねる前の状態を示す断面図、図８は３つの保冷保温容器１を積み重ねた状態を示す断面図である。
【０００８】
この保冷保温容器１は、容器本体４とその開口を塞ぐ開閉可能な蓋とを有し、該蓋を閉じた状態で中空直方体形状をなす遮熱シート外装体７と、該遮熱シート外装体７の内面側に沿って配置された発泡樹脂板６ａを有する断熱材６とを備え、遮熱シート外装体７の四辺の側壁部のうち一対の側壁部に前記断熱材６を固定すると共に、残る一対の側壁部に断熱材６を着脱可能に取り付けて耐圧側壁部３を形成し、且つ蓋に断熱材６を固定して耐圧蓋部５を形成した構成になっている。なお、以下の記載において、前記四辺の耐圧側壁部３のうち、矩形をなす底面部２の長辺側に立設された部分を長辺側の耐圧側壁部３、底面部２の短辺側に立設された部分を短辺側の耐圧側壁部３と記す。
【０００９】
また、この保冷保温容器１は、容器本体４の上端部外面側に１又は複数の連結片８が設けられ、且つ容器本体４の下端部外面側に連結片８が係止される係止部９が設けられ、これらの連結片８と係止部９とは、複数の保冷保温容器１を積み重ねた際、下側の保冷保温容器１の連結片８が上側の保冷保温容器１の係止部９に係止されるような位置に設けられている。
【００１０】
前記遮熱シート外装体７は、保冷保温容器の耐圧側壁部３の一部として機能すると共に、保冷保温及び断熱性能を高める機能を果たすものである。材料の遮熱シートとしては、例えばポリエチレンテレフタレートなどのポリエステル、ポリエチレン等の合成樹脂フィルムにアルミニウムまたはその他金属を蒸着した反射膜層あるいはアルミニウムまたはその他金属の箔を積層した反射膜層を有する積層シートが用いられる。この反射膜層により輻射熱の放出や侵入を阻止し、保冷保温及び断熱性能を高め得る。
【００１１】
本例において遮熱シート外装体７は、矩形状の底面部２と、その周縁から立設され、断熱材６が取り付けられる耐圧側壁部３と、その長辺側の一辺から延出され、断熱材６が取り付けられる耐圧蓋部５とからなっている。隣り合う耐圧側壁部３の側端縁同士は縫着されている。また、連結片８は耐圧側壁部３の上端縁に縫着されている。さらに、係止部９は耐圧側壁部３の下部外面に縫着または接着されている。また、耐圧側壁部３の短辺側の二辺の外面には、保冷保温容器１を搬送する際に掴むための把手１０が縫着又は接着されている。
【００１２】
この遮熱シート外装体７の内部及び耐圧蓋部５に取り付けられた断熱材６は、発泡樹脂板６ａを遮熱シート６ｂで覆った構成になっている。この発泡樹脂板６ａの材料としては、従来から発泡樹脂成形品製造のために用いられている樹脂材料の中から適宜選択して用いることができ、特に限定されず、例えば、ポリスチレン、ハイインパクトポリスチレン、スチレン−無水マレイン酸共重合体、スチレン−アクリロニトリル共重合体等のポリスチレン系樹脂、ポリエチレン、ポリプロピレン、エチレン−酢酸ビニル共重合体等のポリオレフィン系樹脂、ポリエチレンテレフタレート等のポリエステル系樹脂等を挙げることができ、強度と成形性の良さからポリスチレン系樹脂が好ましい。
【００１３】
前記連結片８と係止部９との係止構造は、連結片８を係止部９に着脱可能であればよく、特に限定されないが、例えば面ファスナー、一方に鉤止め孔、他方にフックやホック等の止め金具を設けた釦、スナップ、着脱用のバックルを有する連結金具、金属環とそれに係合する鉤形金具、磁石と磁石、又は磁石と強磁性体片との組合せなどの係止構造の中から適宜選択して用いることができる。本例示では、連結片８の端部と係止部９とに対をなす面ファスナーを固定した構成になっている。
【００１４】
本例では、耐圧側壁部３を構成している断熱材６のうち、長辺側の耐圧側壁部３では、遮熱シート外装体７と断熱材６とを縫着又は接着し、短辺側の耐圧側壁部３では、断熱材３を固着せず、あるいは断熱材６の側端縁の一方のみを遮熱シート外装体７に縫着することによって、保冷保温容器１が折り畳み可能な構造になっている。
【００１５】
図３及び図４は、この保冷保温容器１を折り畳む状態を説明するための図である。この保冷保温容器１を折り畳むには、まず、耐圧蓋部５を、その天面側が耐圧側壁部３に接するまで開き、図３に示すように、短辺側の２つの断熱材６を取り外して容器本体４内の他の断熱材６と重ね合わせる。次いで遮熱シート７の短辺側を折り込んで、全体を押し畳み、図４に示すようにコンパクトに折り畳んだ後、折り畳み状態を維持するように適所に設けたストラップ１１で止める。このように折り畳むことで、搬送後に回収した保冷保温容器１を保存しておくスペースを有効利用することができる。折り畳んだ保冷保温容器１は、ストラップ１１を解放し、遮熱シート本体７を広げ、短辺側にそれぞれ断熱材６を嵌め込んで箱状に戻す簡単な操作によって復元できる。
【００１６】
図５及び図７〜８は、複数の保冷保温容器１を積み重ねた状態を示す。２つの保冷保温容器１を積み重ねる場合、図５に示すように、下側の保冷保温容器１の耐圧蓋部５上に上側の保冷保温容器１を載せ、下側の保冷保温容器１の連結片８を、上側の保冷保温容器１の容器本体４の下部外面に設けた係止部９に係止する。上側の保冷保温容器１の連結片８は、邪魔にならないように耐圧蓋部５の天面側に設けた係止部９に係止する。これによって、上下の保冷保温容器１の積み重ね状態が安定し、上側の保冷保温容器１がずれたり崩れたりせずに搬送できる。搬送中、振動や衝撃が加わった際、上側の保冷保温容器１が傾いたとしても、連結片８が耐圧蓋部５ではなく、容器本体４側に突設されており、容器本体４の内容物の重量が加わるために、上側の保冷保温容器１が倒れ難くなり、連結片１を耐圧蓋部５に設けた場合と比べて崩れ難くすることができる。
【００１７】
また、図７及び８に示すように、３つの保冷保温容器１を積み重ねる場合も、前記２つの積み重ねの場合と同様である。第１の保冷保温容器１の上に第２の保冷保温容器１、及びその上に第３の保冷保温容器１を載せ、第１の保冷保温容器１の連結片８を、第２の保冷保温容器１の容器本体４の下部外面に設けた係止部９に係止し、また第２の保冷保温容器１の連結片８を、第３の保冷保温容器１の容器本体４の下部外面に設けた係止部９に係止する。第３の保冷保温容器１の連結片８は、邪魔にならないように耐圧蓋部５の天面側に設けた係止部９に係止する。これによって、上下の保冷保温容器１の積み重ね状態が安定し、第２，第３の保冷保温容器１がずれたり崩れたりせずに搬送できる。搬送中、振動や衝撃が加わった際、第２，第３の保冷保温容器１が傾いたとしても、連結片８が耐圧蓋部５ではなく、容器本体４側に突設されており、内容物の重量が加わっているために、上側の保冷保温容器１が倒れ難くなり、連結片１を耐圧蓋部５に設けた場合と比べて崩れ難くすることができる。
【００１８】
図９（ａ）〜（ｅ）は、容器本体４の上端縁から突設した連結片８の数や配置位置を例示するための図である。
図９（ａ）に示す例では、容器本体４の四辺の上端縁にそれぞれ連結片８を突設した場合である。容器本体４の四辺の上端縁にそれぞれ連結片８を突設すると、複数の保冷保温容器１の積み重ね状態を安定させる効果が大きくなる。
図９（ｂ）に示す例では、容器本体４の四辺のうち対向する二辺の上端縁に連結片８を突設した場合である。連結片８を２つとすることで、保冷保温容器１の積み下ろし時に、連結片８を係止部９に係止し、または係止を解除する操作が減少し、作業効率を向上できる。
図９（ｃ）に示す例では、容器本体４の四辺のうち対向する短辺側の二辺の上端縁に連結片８を突設した場合である。この例では（ｂ）と同じく、連結片８を２つとすることで、保冷保温容器１の積み下ろし時に、連結片８を係止部９に係止し、または係止を解除する操作が減少し、作業効率を向上できる。
図９（ｄ）に示す例では、容器本体４の四辺のうち、隣り合う二辺の上端縁に連結片８を突設した場合である。この例では、連結片８を２つとし、かつ隣り合う二辺の上端縁に連結片８を突設したことで、積み下ろしを行う作業者が一箇所に立ったまま、両方の連結片８の着脱を行うことが可能となるので、作業効率を向上できる。
図９（ｅ）に示す例では、容器本体４の四辺のうち、隣り合う二辺の上端縁にそれぞれ小片上の２つの連結片８を突設した場合である。この例では（ｄ）と同じく、積み下ろしを行う作業者が一箇所に立ったまま、両方の連結片８の着脱を行うことが可能となるので、作業効率を向上できる。
【００１９】
図１０は本発明の保冷保温容器の第２の例を示す図である。本例の保冷保温容器１は、前述した第１の例による保冷保温容器１と同様の構成要素を備えている他、複数の保冷保温容器１が水平方向に沿って並べられた際、左右いずれか一方に隣接した保冷保温容器１の係止部（図示略）に係止させる連結片１２と、左右いずれか他方に隣接した保冷保温容器１の連結片１２が係止される係止部（図示略）とをさらに設けた構成になっている。
【００２０】
本例の本例の保冷保温容器１は、左右方向に並んだ保冷保温容器を連結するための連結片１２を設けたことによって、垂直方向に複数段および水平方向に複数列、保冷保温容器１を積み重ねた時、垂直方向だけでなく、水平方向に隣り合う保冷保温容器１を連結片１２を介して係止でき、積み重ね状態を安定に保つことができる。
【００２１】
図１１は本発明の保冷保温容器の第３の例を示す図である。本例の保冷保温容器２１は、平面視長方形状の底板２２と、その周縁に立設された側板２３と、天面側を塞ぐ蓋２４とを備えて構成されている。この底板２２と側板２３とは合成樹脂板で形成され、且つ側板２３の表面には反射膜層を有する遮熱シート２５が設けられている。側板２３の上端各角部には、別の保冷保温容器２１を積み重ねる際に上側の保冷保温容器２１の底板２２周縁が嵌合される止め具２６が設けられている。なお、本例示では、蓋２４以外の部分が容器本体である。
【００２２】
底板２２と側板２３との内表面側および蓋２４には、発泡樹脂板２８ａを遮熱シート２８ｂで被覆してなる断熱材２８が着脱可能に取り付けられている。底板２２と側板２３との内表面側に取り付けられる断熱材２８は、それぞれの断熱材２８を底板２２と側板２３との内表面に沿わせて組み立てることにより、安定して配置される。また蓋２４の断熱材２８は、容器天面側に開閉可能に取り付けられている。
【００２３】
底板２２と側板２３の材料に用いられる合成樹脂板としては、ポリエチレン、ポリプロピレン、塩化ビニル、ポリエチレンテレフタレート、ＡＢＳ樹脂などの合成樹脂からなる平板、リブや波板構造を有する補強合成樹脂板、プラスチック段ボール（ハニカム板、中空構造板、中空積層板等の類似の板を含む）、低発泡樹脂成形板からなる群から選択される１種が好ましい。これらの中でも、軽量で機械強度にも優れるポリエチレンやポリプロピレン製のプラスチック段ボールが好ましい。この合成樹脂板は透明、半透明または不透明でよく、また所望の着色を施すことができる。
【００２４】
前記側板２３を覆う遮熱シート２５の上端部外面には、連結片２７が突設されている。また遮熱シート２５の下端部外面には、係止部２９が設けられている。これらの連結片２７と係止部とは、複数の保冷保温容器２１を積み重ねた際、下側の保冷保温容器２１の連結片２７が上側の保冷保温容器２１の係止部２９に係止されるような位置に設けられている。
【００２５】
この第３の例による保冷保温容器２１は、複数の保冷保温容器２１を積み重ねた際、下側の保冷保温容器２１の連結片２７が上側の保冷保温容器２１の係止部２９に係止されるように、蓋ではなく容器本体側に連結片２７を設けた構成としたので、前述した第１の例と同じく、上下の保冷保温容器２１の積み重ね状態が安定し、上側の保冷保温容器２１がずれたり崩れたりせずに搬送できる。搬送中、振動や衝撃が加わった際、上側の保冷保温容器２１が傾いたとしても、連結片２７が蓋ではなく、容器本体側に突設されており、内容物の重量が加わっているために、上側の保冷保温容器２１が倒れ難くなり、連結片２７を蓋から突設した場合と比べて崩れ難くすることができる。
【００２６】
【発明の効果】
本発明の保冷保温容器は、容器本体の上端部外面側に連結片を設け、容器本体の下端部外面側に連結片が係止される係止部を設け、複数の保冷保温容器を積み重ねた際、下側の保冷保温容器の連結片が上側の保冷保温容器の係止部に係止されるように構成したので、上下の保冷保温容器の積み重ね状態が安定し、上側の保冷保温容器がずれたり崩れたりせずに搬送できる。搬送中、振動や衝撃が加わった際、上側の保冷保温容器が傾いたとしても、連結片が蓋ではなく、容器本体側に突設されており、内容物の重量が加わっているために、上側の保冷保温容器が倒れ難くなり、連結片を蓋から突設した場合と比べて崩れにくくすることができる。
また、容器本体の側壁部のうち、隣り合う二つの辺のそれぞれに連結片と係止部を設けたことによって、積み下ろしを行う作業者が一箇所に立ったまま、両方の連結片の着脱を行うことが可能となるので、作業効率を向上できる。
さらに、前記容器本体の側壁部に、複数の保冷保温容器が水平方向に沿って並べられた際、左右いずれか一方に隣接した保冷保温容器の係止部に係止させる連結片と、左右いずれか他方に隣接した保冷保温容器の連結片が係止される係止部とをさらに設けたことによって、垂直方向に複数段および水平方向に複数列保冷保温容器を積み重ねた時、垂直方向だけでなく、水平方向に隣り合う保冷保温容器をこの連結片を介して係止でき、積み重ね状態を安定に保つことができる。
【図面の簡単な説明】
【図１】本発明の保冷保温容器の第１の例を示し、保冷保温容器の耐圧蓋部を開けた状態の斜視図である。
【図２】同じ保冷保温容器の耐圧蓋部を閉めた状態の斜視図である。
【図３】同じ保冷保温容器の折り畳み準備状態の斜視図である。
【図４】同じ保冷保温容器の折り畳み状態を示す斜視図である。
【図５】２つの保冷保温容器を積み重ねた状態を示す斜視図である。
【図６】同じ保冷保温容器の断面図である。
【図７】３つの保冷保温容器を積み重ねる前の状態を示す断面図である。
【図８】３つの保冷保温容器を積み重ねた状態を示す断面図である。
【図９】連結片の配置状態を例示する概略平面図である。
【図１０】本発明の保冷保温容器の第２の例を示す斜視図である。
【図１１】本発明の保冷保温容器の第３の例を示す断面図である。
【符号の説明】
１，２１…保冷保温容器、２…底面部、３…耐圧側壁部、４…容器本体、５…耐圧蓋部、６，２８…断熱材、６ａ…発泡樹脂板、６ｂ…遮熱シート、７…遮熱シート外装体、８，１２，２７…連結片、１０…把手、１１…ストラップ、２２…底板（底面部）、２３…側板（側壁部）、２４…蓋、２５…遮熱シート、２６…止め具。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cold and warm container used when delivering a product that requires cold and warm preservation such as food and medicine.
[0002]
[Prior art]
Conventionally, as a cold insulation container, a bottomed box-shaped case body made of a heat shield sheet and having a flat rectangular shape is formed on a pressure-resistant side wall portion by combining heat insulating plates on a pair of opposite side surfaces among four side surfaces. In addition, the side wall portions that become the pair of side surfaces that remain and the bottom surface portion that is sewn to the lower end edges of the four side surfaces are both made of a heat-shielding sheet and are foldable, and on the inside of the pair of side wall portions, Connected to the other end of the play sheet portion stitched to the corner portion of the bottomed box-shaped case body, and a pressure-resistant and heat-insulating layer portion combined with a heat insulating plate is attached and detachably combined, and a pair of pressure-resistant side walls One of the outer peripheral edges of the pressure-resistant lid portion combined with the heat insulating plate is sewn so as to be openable and closable, and at least a pair of the four outer peripheral edges of the pressure-resistant lid portion are opposed to one upper end edge When connecting bands project from the outer peripheral edge upward In addition, a pair of pressure-resistant side wall portions corresponding to the connection band portions and / or other bottomed box shapes on the outer surfaces near the lower ends of the pair of side wall portions, corresponding to the projecting structure of the connection band portions. There has been proposed a heat-insulating storage case in which a temporary attachment portion is formed so as to be detachable from a connecting band portion protruding and formed on the outside of a pressure-resistant lid portion of the case body (see, for example, Patent Document 1). ).
[0003]
[Patent Document 1]
Japanese Patent No. 3312878 gazette
[Problems to be solved by the invention]
The heat-insulating storage case described in Patent Document 1 is provided with a connecting band projecting from the outer peripheral edge of the pressure-resistant lid, a temporary attachment portion provided at the lower end of the case body, and when the cases are stacked, The connecting band portion is fixed to the temporary attachment portion of the upper case to prevent collapse. However, when stacking cases containing heavy contents, the pressure-resistant lid itself is light and easy to open, and the upper case is stopped by a connecting piece provided on the pressure-resistant lid of the lower case. Therefore, when vibration or impact is applied during transportation of the stacked cases, there is a problem that the upper case is inclined, the pressure-resistant lid portion of the lower case is opened, and the upper case is easily tilted.
[0005]
The present invention has been made in view of the above circumstances, and an object thereof is to provide a cold and warm container that can be stably stacked.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a cold insulation heat insulation provided with a container body composed of a bottom surface part and a side wall part having heat insulation standing from the periphery thereof, and a lid that can be opened and closed to close the opening of the container body. A container, wherein at least one connecting piece is provided on the outer surface side of the upper end portion of the container body, and an engaging portion for locking the connecting piece is provided on the outer surface side of the lower end portion of the container body. The piece and the locking part are provided at a position where the connecting piece of the lower cold insulation container is locked to the locking part of the upper cold insulation container when a plurality of cold insulation containers are stacked. A cold insulated container is provided.
The present invention also includes a container main body and a lid that can be opened and closed to close the opening thereof, and a heat shield sheet exterior body having a hollow rectangular parallelepiped shape with the lid closed, and an inner surface side of the heat shield sheet exterior body A heat insulating container having a foamed resin plate disposed along the container body, wherein at least one connecting piece is provided on the outer surface side of the upper end portion of the container body, and on the outer surface side of the lower end portion of the container body. A locking part for locking the connecting piece is provided, and the connecting piece and the locking part are arranged such that when a plurality of cold insulation containers are stacked, the connection piece of the lower cold insulation container is the upper insulation. Provided is a cold insulated container characterized by being provided at a position to be locked to a locking portion of the container.
In the cold insulation container of the present invention, the heat insulating material is fixed to a pair of side wall portions among the four side wall portions of the heat shield sheet exterior body, and the heat insulating material is detachably attached to the remaining pair of side wall portions. It is preferable that the side wall portion is formed and the pressure insulating lid portion is formed by fixing the heat insulating material to the lid.
Moreover, it is preferable to provide the said connection piece and a latching | locking part in each of at least two adjacent sides among the side wall parts of the said container main body.
Furthermore, when a plurality of cold and warm insulation containers are arranged in the horizontal direction on the side wall portion of the container body, a connecting piece to be engaged with an engagement portion of the cold and warm insulation container adjacent to either the left or right, In addition, it is preferable to further include a locking portion that locks the connecting piece of the cold and warm container adjacent to the other.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to the drawings.
FIGS. 1-8 is a figure which shows the 1st example of the cold insulation container of this invention, FIG. 1 is a perspective view of the state which opened the pressure | voltage resistant cover part 5 of the cold insulation container 1, FIG. FIG. 3 is a perspective view of the same cold insulation container 1 in a ready state for folding, FIG. 4 is a perspective view of the same cold insulation container 1 in a folded state, and FIG. FIG. 6 is a cross-sectional view of the same cold insulation container, FIG. 7 is a cross-sectional view showing the state before the three cold insulation containers 1 are stacked, and FIG. 8 is three cold insulations. It is sectional drawing which shows the state which accumulated the container 1. FIG.
[0008]
The cold insulation container 1 has a container body 4 and a lid that can be opened and closed to close the opening thereof, and a heat shield sheet exterior body 7 having a hollow rectangular parallelepiped shape with the lid closed, and the heat shield sheet exterior body And a heat insulating material 6 having a foamed resin plate 6a disposed along the inner surface side of the heat insulating sheet 7 and fixing the heat insulating material 6 to a pair of side wall portions of the four side wall portions of the heat shield sheet exterior body 7, The heat insulating material 6 is detachably attached to the remaining pair of side wall portions to form the pressure resistant side wall portion 3, and the pressure insulating lid portion 5 is formed by fixing the heat insulating material 6 to the lid. In the following description, of the four sides of the pressure-resistant side wall 3, the portions erected on the long side of the rectangular bottom surface 2 are the long-side pressure-resistant side wall 3 and the short side of the bottom 2. The portion erected on the short side is referred to as a short-side pressure-resistant side wall portion 3.
[0009]
Further, the cold insulation container 1 is provided with one or a plurality of connecting pieces 8 on the outer surface side of the upper end portion of the container body 4, and a locking portion in which the connecting pieces 8 are locked on the outer surface side of the lower end portion of the container body 4. 9, and these connecting pieces 8 and the locking portions 9 are used to lock the connecting pieces 8 of the lower cold insulating container 1 when the plural cold insulating containers 1 are stacked. It is provided at a position to be locked to the portion 9.
[0010]
The heat shield sheet exterior body 7 functions as a part of the pressure-resistant side wall portion 3 of the cold insulation container, and fulfills the function of improving the cold insulation and heat insulation performance. As the heat insulating sheet of the material, for example, a laminated sheet having a reflective film layer in which aluminum or other metal is vapor-deposited on a synthetic resin film such as polyester such as polyethylene terephthalate or polyethylene, or a foil of aluminum or other metal is laminated. Used. This reflective film layer can prevent the release and penetration of radiant heat, and can improve the cold insulation and heat insulation performance.
[0011]
In this example, the heat shield sheet exterior body 7 is erected from the rectangular bottom surface portion 2 and the peripheral edge thereof, the pressure-resistant side wall portion 3 to which the heat insulating material 6 is attached, and extended from one side of the long side, and is insulated. It consists of the pressure | voltage resistant cover part 5 to which the material 6 is attached. The side edges of the adjacent pressure-resistant side wall portions 3 are sewn together. The connecting piece 8 is sewn to the upper end edge of the pressure-resistant side wall 3. Further, the locking portion 9 is sewn or bonded to the lower outer surface of the pressure-resistant side wall portion 3. In addition, a handle 10 is sewn or bonded to the outer surfaces of the two sides on the short side of the pressure-resistant side wall portion 3 for gripping when the cold insulated container 1 is conveyed.
[0012]
The heat insulating material 6 attached to the inside of the heat shield sheet exterior body 7 and the pressure-resistant lid 5 has a configuration in which the foamed resin plate 6a is covered with the heat shield sheet 6b. The material of the foamed resin plate 6a can be appropriately selected from resin materials conventionally used for producing foamed resin molded products, and is not particularly limited. For example, polystyrene, high impact polystyrene , Polystyrene resins such as styrene-maleic anhydride copolymer, styrene-acrylonitrile copolymer, polyolefin resins such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polyester resins such as polyethylene terephthalate, etc. Polystyrene resins are preferred because of their strength and moldability.
[0013]
The locking structure between the connecting piece 8 and the locking portion 9 is not particularly limited as long as the connecting piece 8 can be attached to and detached from the locking portion 9. For example, a hook-and-loop fastener is provided on one side, and a hook is provided on the other side. Buttons provided with stoppers such as hooks and hooks, snaps, connecting brackets with detachable buckles, metal rings and saddle-shaped brackets that engage with them, magnets and magnets, or combinations of magnets and ferromagnetic pieces It can be used by appropriately selecting from stop structures. In this example, a hook-and-loop fastener that makes a pair is fixed to the end portion of the connecting piece 8 and the locking portion 9.
[0014]
In this example, among the heat insulating materials 6 constituting the pressure-resistant side wall portion 3, the heat-shielding sheet exterior body 7 and the heat insulating material 6 are sewn or bonded to each other on the long side pressure-resistant side wall portion 3. In the pressure-resistant side wall portion 3, the heat insulating material 3 is not fixed, or only one of the side edges of the heat insulating material 6 is sewn to the heat shield sheet exterior body 7 so that the cold insulation container 1 can be folded. It has become.
[0015]
3 and 4 are views for explaining a state in which the cold insulation container 1 is folded. To fold the cold insulation container 1, first, the pressure-resistant lid 5 is opened until the top surface is in contact with the pressure-resistant side wall 3, and the two heat insulating materials 6 on the short side are removed as shown in FIG. 3. It overlaps with the other heat insulating material 6 in the container main body 4. Next, the short side of the heat shield sheet 7 is folded, the whole is pushed and folded as shown in FIG. 4, and then it is stopped with a strap 11 provided at an appropriate position so as to maintain the folded state. By folding in this way, it is possible to effectively use the space for storing the cold and warm container 1 collected after transport. The folded cold insulation container 1 can be restored by a simple operation of releasing the strap 11, expanding the heat shield sheet body 7, inserting the heat insulating material 6 on each short side, and returning it to a box shape.
[0016]
5 and 7 to 8 show a state in which a plurality of cold and warm containers 1 are stacked. When two cold insulation containers 1 are stacked, as shown in FIG. 5, the upper insulation container 1 is placed on the pressure-resistant lid 5 of the lower insulation container 1, and the connecting piece of the lower insulation container 1 is placed. 8 is locked to a locking portion 9 provided on the lower outer surface of the container body 4 of the upper cold insulation container 1. The connecting piece 8 of the upper cold insulation container 1 is locked to a locking portion 9 provided on the top surface side of the pressure-resistant lid 5 so as not to get in the way. Accordingly, the stacked state of the upper and lower cold insulation containers 1 is stabilized, and the upper cold insulation container 1 can be transported without being displaced or collapsed. Even if the upper cold insulation container 1 is tilted when vibration or impact is applied during transportation, the connecting piece 8 protrudes not on the pressure-resistant lid 5 but on the container body 4 side. Since the weight of the object is added, it is difficult for the upper cold insulation container 1 to fall down, and it is difficult to collapse compared to the case where the connecting piece 1 is provided on the pressure-resistant lid 5.
[0017]
Moreover, as shown in FIGS. 7 and 8, the case where the three cold insulation containers 1 are stacked is the same as the case of the two stacks. The second cold insulation container 1 is placed on the first cold insulation container 1, and the third cold insulation container 1 is placed thereon, and the connecting piece 8 of the first cold insulation container 1 is placed in the second cold insulation container. Locked to a locking portion 9 provided on the lower outer surface of the container body 4 of the container 1, and the connecting piece 8 of the second cold insulation container 1 is attached to the lower outer surface of the container body 4 of the third cold insulation container 1. Lock to the provided locking portion 9. The connecting piece 8 of the third cold insulation container 1 is locked to a locking portion 9 provided on the top surface side of the pressure-resistant lid 5 so as not to get in the way. As a result, the stacked state of the upper and lower cold insulation containers 1 is stabilized, and the second and third cold insulation containers 1 can be transported without shifting or collapsing. Even if the second and third cold insulated containers 1 are tilted when vibration or impact is applied during transportation, the connecting piece 8 protrudes from the container body 4 side instead of the pressure-resistant lid 5. Since the weight of the object is added, the upper cold insulation container 1 is unlikely to fall down, and can be made difficult to collapse compared to the case where the connecting piece 1 is provided on the pressure-resistant lid 5.
[0018]
FIGS. 9A to 9E are views for illustrating the number and arrangement positions of the connecting pieces 8 protruding from the upper end edge of the container body 4.
In the example illustrated in FIG. 9A, the connection pieces 8 are provided to project from the upper end edges of the four sides of the container body 4. When the connecting pieces 8 are provided so as to project from the upper end edges of the four sides of the container body 4, the effect of stabilizing the stacked state of the plurality of cold and warm containers 1 is increased.
In the example shown in FIG. 9B, the connecting piece 8 protrudes from the upper edge of two opposite sides of the four sides of the container body 4. By using two connection pieces 8, when the cold insulation container 1 is loaded and unloaded, the operation of locking or releasing the connection pieces 8 to or from the locking portions 9 is reduced, and work efficiency can be improved.
In the example shown in FIG. 9C, the connecting piece 8 protrudes from the upper end edges of two opposite short sides of the four sides of the container body 4. In this example, as in (b), the number of the connecting pieces 8 is two, so that when the cold insulated container 1 is loaded and unloaded, the operation of locking the connecting pieces 8 to the locking portions 9 or releasing the locking is reduced. , Work efficiency can be improved.
In the example shown in FIG. 9 (d), the connecting piece 8 protrudes from the upper edge of two adjacent sides of the four sides of the container body 4. In this example, the number of connecting pieces 8 is two, and the connecting pieces 8 project from the upper end edges of two adjacent sides, so that an operator performing loading and unloading stands at one place, Since it becomes possible to attach and detach, work efficiency can be improved.
In the example shown in FIG. 9 (e), two connecting pieces 8 on the small pieces project from the upper end edges of two adjacent sides of the four sides of the container body 4. In this example, as in (d), since it is possible to attach and detach both connecting pieces 8 while the operator performing loading and unloading stands at one place, work efficiency can be improved.
[0019]
FIG. 10 is a view showing a second example of the cold and warm container of the present invention. The cold insulation container 1 of this example has the same components as the cold insulation container 1 according to the first example described above, and when the plurality of cold insulation containers 1 are arranged along the horizontal direction, A connecting piece 12 to be engaged with an engaging portion (not shown) of the cold insulation container 1 adjacent to either one, and an engaging portion to which the connecting piece 12 of the cold insulation container 1 adjacent to either the left or right is engaged ( (Not shown) is further provided.
[0020]
The cold insulation container 1 of this example is provided with connecting pieces 12 for connecting the cold insulation containers arranged in the left-right direction, thereby providing a plurality of stages in the vertical direction and a plurality of rows in the horizontal direction. When stacked, the cold insulation container 1 adjacent not only in the vertical direction but also in the horizontal direction can be locked via the connecting piece 12, and the stacked state can be kept stable.
[0021]
FIG. 11 is a view showing a third example of the cold and warm container of the present invention. The cold insulation container 21 of this example includes a bottom plate 22 having a rectangular shape in plan view, a side plate 23 erected on the periphery thereof, and a lid 24 that closes the top surface side. The bottom plate 22 and the side plate 23 are formed of a synthetic resin plate, and a heat shield sheet 25 having a reflective film layer is provided on the surface of the side plate 23. At each corner of the upper end of the side plate 23, there is provided a stopper 26 to which the periphery of the bottom plate 22 of the upper cold insulation container 21 is fitted when another cold insulation container 21 is stacked. In this example, the part other than the lid 24 is the container body.
[0022]
On the inner surface side of the bottom plate 22 and the side plate 23 and the lid 24, a heat insulating material 28 formed by covering the foamed resin plate 28a with a heat insulating sheet 28b is detachably attached. The heat insulating material 28 attached to the inner surface side of the bottom plate 22 and the side plate 23 is stably arranged by assembling the respective heat insulating materials 28 along the inner surfaces of the bottom plate 22 and the side plate 23. Moreover, the heat insulating material 28 of the lid | cover 24 is attached to the container top surface side so that opening and closing is possible.
[0023]
Synthetic resin plates used for the material of the bottom plate 22 and the side plate 23 include a flat plate made of synthetic resin such as polyethylene, polypropylene, vinyl chloride, polyethylene terephthalate, ABS resin, a reinforced synthetic resin plate having a rib or corrugated plate structure, and plastic corrugated cardboard. One type selected from the group consisting of low foamed resin molded plates (including similar plates such as honeycomb plates, hollow structure plates, and hollow laminated plates) is preferable. Among these, a plastic cardboard made of polyethylene or polypropylene which is lightweight and excellent in mechanical strength is preferable. This synthetic resin plate may be transparent, translucent or opaque, and can be colored as desired.
[0024]
A connecting piece 27 protrudes from the outer surface of the upper end of the heat shield sheet 25 that covers the side plate 23. Further, a locking portion 29 is provided on the outer surface of the lower end portion of the heat shield sheet 25. The connecting pieces 27 and the engaging portions are connected to the engaging portions 29 of the upper cold insulation container 21 when the plural cold insulation containers 21 are stacked. It is provided in such a position.
[0025]
In the cold insulation container 21 according to the third example, when a plurality of the insulation containers 21 are stacked, the connecting piece 27 of the lower insulation container 21 is engaged with the engaging portion 29 of the upper insulation container 21. As described above, since the connecting piece 27 is provided on the container main body side instead of the lid, the stacked state of the upper and lower cold insulation containers 21 is stable and the upper cold insulation container 21 is the same as in the first example described above. Can be transported without slipping or collapsing. Even if the upper cold insulation container 21 is tilted when vibration or impact is applied during transportation, the connecting piece 27 protrudes not on the lid but on the container body side, and the weight of the contents is added. In addition, the upper cold insulation container 21 is unlikely to fall down, and can be more unlikely to collapse than the case where the connecting piece 27 protrudes from the lid.
[0026]
【The invention's effect】
The cold insulated container of the present invention is provided with a connecting piece on the outer surface side of the upper end portion of the container body, and provided with a locking portion for locking the connecting piece on the outer surface side of the lower end portion of the container body, and a plurality of cold insulated containers are stacked. At this time, since the connecting piece of the lower cold insulation container is configured to be locked to the engaging portion of the upper cold insulation container, the stacked state of the upper and lower cold insulation containers is stable, and the upper cold insulation container is Can be transported without slipping or collapsing. During transportation, even if vibration or impact is applied, even if the upper cold insulation container is tilted, the connecting piece protrudes on the container body side, not the lid, and the weight of the contents is added, The upper cold insulation container is unlikely to fall down, and can be made less likely to collapse than when the connecting piece protrudes from the lid.
In addition, by providing a connecting piece and a locking portion on each of two adjacent sides of the side wall portion of the container body, both the connecting pieces can be attached and detached while the operator performing loading and unloading is standing in one place. This makes it possible to improve work efficiency.
Furthermore, when a plurality of cold and warm insulation containers are arranged in the horizontal direction on the side wall portion of the container body, a connecting piece to be engaged with an engagement portion of the cold and warm insulation container adjacent to either the left or right, In addition, by further providing a locking portion for locking the connecting piece of the cold insulation container adjacent to the other, when stacking multiple rows of cold insulation containers in the vertical direction and multiple rows in the horizontal direction, only in the vertical direction In addition, it is possible to lock the cold insulation container adjacent in the horizontal direction via the connecting piece, and to keep the stacked state stable.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first example of a cold insulation container according to the present invention, in a state in which a pressure-resistant lid portion of the cold insulation container is opened.
FIG. 2 is a perspective view showing a state where a pressure-resistant lid portion of the same cold insulation container is closed.
FIG. 3 is a perspective view of the same cold insulation container in a ready state for folding.
FIG. 4 is a perspective view showing a folded state of the same cold and warm container.
FIG. 5 is a perspective view showing a state in which two cold insulation containers are stacked.
FIG. 6 is a cross-sectional view of the same cold insulation container.
FIG. 7 is a cross-sectional view showing a state before three cold insulation containers are stacked.
FIG. 8 is a cross-sectional view showing a state where three cold insulation containers are stacked.
FIG. 9 is a schematic plan view illustrating an arrangement state of connecting pieces.
FIG. 10 is a perspective view showing a second example of the cold insulation container according to the present invention.
FIG. 11 is a cross-sectional view showing a third example of the cold and warm container of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,21 ... Cold insulation container, 2 ... Bottom part, 3 ... Pressure-resistant side wall part, 4 ... Container main body, 5 ... Pressure-resistant lid part, 6,28 ... Heat insulating material, 6a ... Foamed resin board, 6b ... Heat insulation sheet, 7 ... heat shield sheet exterior body, 8, 12, 27 ... connecting piece, 10 ... handle, 11 ... strap, 22 ... bottom plate (bottom surface portion), 23 ... side plate (side wall portion), 24 ... lid, 25 ... heat shield sheet, 26 ... Stopper.
