【０００１】
【発明の属する技術分野】
本発明は、外箱の内側に断熱壁を設けて形成された商品収納庫と、その商品収納庫の開口部を開閉する扉を備え、商品収納庫の開口部周りに沿って扉密封用のガスケットが固定されている自動販売機の扉密封構造に関する。
【０００２】
【従来の技術】
このような扉密封構造は、扉により商品収納庫の開口部を閉じた際、商品収納庫内の冷熱や温熱が逃げないように密封するためのもので、従来は、図９に示すような扉密封構造が採用されている。
この従来の扉密封構造では、板金製の外箱２の内側面における開口端部に固定された補強用のフレーム５０に、商品収納庫３の開口平面に沿う第１取付け板部５０Ａとそれの内側端から後方側（庫内奥側）に延びる第２取付け板部５０ＢとをＬ字上に折り曲げ形成して、ガスケット１３の取付け部材５１に対する取付け座Ａが構成されているとともに、第２取付け板部５０Ｂには、断熱材で形成された雌ネジ部材５２が回り止め状態で取付けられている。
【０００３】
前記ガスケット１３の取付け部材５１は、両取付け板部５０Ａ，５０Ｂの表面に当て付けられる横断面形状が略しの字状の取付け基部５１Ａと、内箱を構成する鋼板製の内側板５３の折り曲げ端縁５３ａを差し込み保持するための溝５１Ｂを取付け基部５１Ａの開口側表面との間で形成する差込み保持部５１Ｃと、ガスケット１３を一体形成してある横断面形状が略Ｌの字状の取付け板部５１Ｄとから構成されているとともに、前記取付け基部５１Ａのうち、補強用フレーム５０の第２取付け板部５０Ｂの表面に沿う基板部分５１ａには、取付け部材５１を補強用フレーム５０側の雌ネジ部材５２にビス５４止めするための取付け孔５５が貫通形成されている。
【０００４】
前記取付け基部５１Ａと差込み保持部５１Ｃ、取付け板部５１Ｄが硬質合成樹脂により成形されているとともに、ガスケット１３が軟質合成樹脂により成形されている。
【０００５】
【発明が解決しようとする課題】
従来では、補強用フレーム５０の取付け座Ａにガスケット１３の取付け部材５１を取付けるにあたり、多数のビス５４が必要不可欠で、しかも、補強用フレーム５０の第２取付け板部５０Ｂには、断熱材で形成された雌ネジ部材５２を回り止め状態で取付ける必要があるため、部品点数が多くなるばかりでなく、ビス５４の締付け工程も必要となり、組立てに要する工程が多くなってコストアップを招くという欠点があった。
【０００６】
本発明は、上述の実状に鑑みて為されたものであって、その主たる課題は、部品点数を極力少なくし、かつ、組立てに要する工程も少なくし、しかも、扉密封用のガスケットを外箱に確実に固定することのできる自動販売機の扉密封構造を提供する点にある。
【０００７】
【課題を解決するための手段】
本発明の請求項１による特徴構成は、外箱の内側に断熱壁を設けて形成された商品収納庫と、その商品収納庫の開口部を開閉する扉を備え、商品収納庫の開口部周りに沿って扉密封用のガスケットが固定されているとともに、外箱の内側面の開口端部に固定されたフレームには、商品収納庫の開口平面に沿う第１取付け板部とそれの内側端から後方側に延びる第２取付け板部とを形成して、ガスケットの取付け部材に対する取付け座が構成されている自動販売機の扉密封構造であって、
前記ガスケットの取付け部材が、第２取付け板部の後端縁に係合する係合部と、それを第２取付け板部の後端縁に係合させた状態で第１取付け板部側に回動させることにより両取付け板部の表面に沿って外れ止め状態で装着される取付け基部とから構成されている点にある。
【０００８】
上記特徴構成によれば、フレームの取付け座にガスケットの取付け部材を取付ける場合、取付け部材の係合部を、フレーム側の第２取付け板部の後端縁に係合したのち、その係合状態のまま第１取付け板部側に回動させることにより、取付け部材の取付け基部を外れ止め状態で両取付け板部の表面に沿って装着することができる。
【０００９】
従って、従来のようにビスや雌ネジ部材などを必要とすることなく、ガスケットを確実に固定することができ、部品点数の削減とそれに伴う組立て工数の減少によりコストダウンを図ることができる。
【００１０】
本発明の請求項２による自動販売機の扉密封構造の特徴構成は、前記係合部には、断熱壁との当接によって取付け基部の離脱側への回動を阻止する外れ止め部が連設されている点にある。
【００１１】
上記特徴構成によれば、フレームの取付け座に取付けられたガスケットの取付け部材に対して外れ方向の外力が作用したとき、係合部に連設された外れ止め部が断熱壁に当接して、係合部と第２取付け板部の後端縁との係合箇所を支点とする取付け基部の離脱側への回動を阻止することができるから、ガスケットを確実、強固に取付けることができる。
【００１２】
本発明の請求項３による自動販売機の扉密封構造の特徴構成は、前記取付け基部のうち、第１取付け板部の表面に沿う基板部分に、ガスケットを備えた取付け板部が、少なくとも扉閉動時にそれらの対向面間に閉止状態の空隙を現出する状態で連設されている点にある。
【００１３】
上記特徴構成によれば、扉を閉じたとき、第１取付け板部の表面に沿う取付け基部の基板部分とガスケットを備えた取付け板部との対向面間に閉止状態の空隙を現出することができるので、この空隙が扉閉じ時に断熱層として機能することになり、取付け部材自体の断熱性能を向上することができる。
【００１４】
本発明の請求項４による自動販売機の扉密封構造の特徴構成は、前記取付け基部に、係合部を第２取付け板部の後端縁に係合させた状態で第１取付け板部側に回動させたとき、第１取付け板部の表面との間に圧縮変形される変形部が一体的に設けられている点にある。
【００１５】
上記特徴構成によれば、取付け部材の係合部を、フレーム側の第２取付け板部の後端縁に係合したのち、その係合状態のまま第１取付け板部側に回動させたとき、取付け部材の取付け基部が外れ止め状態で両取付け板部の表面に沿って装着されると同時に、第１取付け板部の表面と取付け基部との間に変形部が圧縮変形されるから、ガスケットを確実、強固に取付けることができる。
【００１６】
本発明の請求項５による自動販売機の扉密封構造の特徴構成は、前記取付け部材が硬質合成樹脂により成形され、ガスケットが軟質合成樹脂により成形されていて、取付け部材とガスケットとが押出し成形により一体的に形成されている点にある。
【００１７】
上記特徴構成によれば、硬質合成樹脂で成形される取付け部材の係合部及び取付け基部によるガスケットの取付けが一層強固なものになり、しかも、硬質合成樹脂製の取付け部材と軟質樹脂製のガスケットとを押出し成形によって一体的に形成することにより、ガスケット及び取付け部材のコストダウンを図ることができる。
【００１８】
本発明の請求項６による自動販売機の扉密封構造の特徴構成は、前記ガスケットを備えた取付け板部が、取付け基部の基板部分に対してそれらの対向面間に空隙を形成する状態で片持ち状に一体形成されているとともに、この取付け板部の遊端側には、閉動される扉との当接に伴う取付け板部の弾性変形に連れて基板部分に当接することにより空隙を閉止する当り部が形成されている点にある。
【００１９】
上記特徴構成によれば、取付け基部の基板部分とガスケットを備えた取付け板部との対向面間に形成される空隙が、閉動される扉との当接に伴う取付け板部の弾性変形に連れて閉止されるため、この空隙が扉閉じ時に断熱層として機能することになり、取付け部材自体の断熱性能を向上することができる。しかも、取付け基部の基板部分に対してガスケットを備えた取付け板部が片持ち状態で一体形成されていて、閉動される扉との当接に伴って取付け板部が弾性変形することで、取付け板部の遊端側に形成された当り部を基板部分に当接させるから、取付け板部の弾性復元力がガスケットを扉側に押付ける力として機能することになり、ガスケットによるシール性能を向上することができる。
【００２０】
本発明の請求項７による自動販売機の扉密封構造の特徴構成は、前記外れ止め部の遊端部分が、断熱壁から離間する側に屈曲形成されている点にある。
【００２１】
上記特徴構成によれば、取付け部材の係合部を第２取付け板部の後端縁に対して傾斜姿勢で差し込みながら係合させるとき、或いは、フレームの取付け座に取付けられたガスケットの取付け部材に対して外れ方向の外力が作用して、係合部に連設された外れ止め部が断熱壁に当接したとき、外れ止め部の先端による断熱壁の損傷を抑制することができる。
【００２２】
本発明の請求項８による自動販売機の扉密封構造の特徴構成は、前記断熱壁の少なくとも庫内側の表面に樹脂製シートが貼り付けられている点にある。
【００２３】
上記特徴構成によれば、従来のような鋼板製の内箱を必要とせず、断熱壁を形成している断熱材の吸湿を防止して、断熱性能の低下を回避しながら断熱構造の軽量化と製造コストの低廉化を図ることができる。
【００２４】
【発明の実施の形態】
〔第１実施形態〕
図１、図２は、缶入り飲料や壜入り飲料等の商品１を販売する自動販売機を示し、板金製の外箱２の内側に商品収納庫３を形成する断熱壁４を設けてなるキャビネット６には、商品収納庫３の前面開口部のうちの商品投入口５を除く下半開口部に対して揺動開閉自在で、下端側に商品排出口７を備えた断熱構造の下側内扉８Ａと、外箱２の前面開口部に対して揺動開閉自在で、下端側に下側内扉８Ａの商品排出口７を通して送出されてきた商品１を受止める商品受け部９及びこれに受止められた商品１を外部に取り出す商品取出口１０を備えた外扉１１が取付けられているとともに、外扉１１の商品サンプル棚１２の背面には、商品収納庫３の上半側の商品投入口５を覆うことが可能な断熱構造の上側内扉８Ｂが揺動開閉自在に取付けられている。
【００２５】
そのため、当該実施形態では、各別に開閉自在な下側内扉８Ａと上側内扉８Ｂとをもって、商品収納庫３の前面開口部を開閉する内扉８が構成されているとともに、商品収納庫３の開口部周りに沿って扉密封用のガスケット１３が固定され、更に、扉閉止時に下側内扉８Ａと上側内扉８Ｂとの隣接間を密封する補助ガスケット２０が、下側内扉８Ａの上側辺に取付けられている。
【００２６】
前記キャビネット６の商品収納庫３内には、図１、図２に示すように、左右方向で複数のラック装着室３Ａに区画形成するための断熱構造の仕切板１４が設けられ、各ラック装着室３Ａ内に臨む天井壁部には、多数の商品１を下方に払い出し可能な状態で上下方向に沿って積み重ね収納するための商品収納通路を前後方向で複数列形成してある商品収納ラック１５が、前後方向から吊下げ状態で脱着自在に組付けられているとともに、商品収納庫３内の底部側には、商品払出指令信号（販売指令信号）に基づいて商品収納ラック１５の商品収納通路から選択的に払出されてくる商品１を受止めて下側内扉８Ａの商品排出口７及び商品取出口１０側に向かって搬出案内するシュート１６と、庫内送風ファン１７Ａや蒸発器１７Ｂ等を備えた庫内温調ユニット１７が配設され、更に、外箱２内の底部側の庫外空間１８内には、凝縮器１９Ａや送風ファン１９Ｂ等を備えた庫外温調ユニット１９が配設されている。
【００２７】
前記外箱２は、図１、図２に示すように、天板２Ａ、左右一対の側板２Ｂ、背板２Ｃ、底板２Ｄ、商品収納庫３と庫外空間１８とに区画形成する中底板２Ｅとから構成され、天板２Ａ、両側板２Ｂ、背板２Ｃ、中底板２Ｅの各内側面には、断熱壁４の一例で、ウレタンフォーム等の断熱材で方形板状に成型され、かつ、表裏両側面又は表面全体をポリエチレン等の防湿性の樹脂製シート４ａで被覆してある断熱パネルが貼り付けられている。
【００２８】
前記外箱２の天板２Ａ及び両側板２Ｂの各内側面における開口側端部には、図３〜図６に示すように、鋼板製の補強用のフレーム２１が固着されているとともに、各補強用フレーム２１の後部には、商品収納庫３の開口平面に沿う第１取付け板部２１Ａとそれの内側端から後方側に延びる第２取付け板部２１ＢとをＬ字状に屈曲形成して、ガスケット１３の取付け部材２２に対する取付け座Ａが構成されている。
【００２９】
また、各補強用フレーム２１の前後中間部２１Ｃは横断面形状が略ハット状に折曲げ形成されているとともに、各前端部２１Ｄは、天板２Ａの前端折曲げ部２Ａ及び両側板２Ｂの前端折曲げ部２ｂに沿って直角に折曲げ形成されている。
【００３０】
外箱２の天板２Ａに固着される補強用フレーム２１と側板２Ｂに固着される補強用フレーム２１は、ハット状の中間折曲げ部２１Ｃの寸法において若干の相違があるものの、前後長は同一で、かつ、取付け座Ａを構成する第１取付け板部２１Ａ及び第２取付け板部２１Ｂの形状、寸法も同一に構成されているため、各取付け座Ａに固定されるガスケット１３及び取付け部材２２の横断面形状は同一形状に統一形成されている。
【００３１】
そして、上述の如く共通化された各ガスケット１３の取付け部材２２には、図４〜図６に示すように、第２取付け板部２１Ｂの後端縁２１ｂに係合する横断面略コの字又はＵの字状の係合部２２Ａと、それを第２取付け板部２１Ｂの後端縁２１ｂに係合させた状態で第１取付け板部２１Ａ側に回動させることにより両取付け板部２１Ａ，２１Ｂの表面に沿って外れ止め状態で装着される横断面略Ｌ字状の取付け基部２２Ｂと、開口側表面にガスケット１３が一体形成され、かつ、少なくとも扉閉動時において、第１取付け板部２１Ａの開口側表面に沿う取付け基部２２Ｂの基板部分２２ｂとの対向面間に閉止状態の空隙Ｓを現出する取付け板部２２Ｃとが主要構成として備えられている。
【００３２】
図５の（ロ）に示すように、前記取付け基部２２Ｂの基板部分２２ｂが第１取付け板部２１Ａの開口側表面に接触している装着状態では、係合部２２Ａの係合端２２ａが第２取付け板部２１Ｂの後端縁２１ｂよりも前方側に若干突出形成されていて、補強用フレーム２１の取付け座Ａに装着された取付け部材２２の外れ止め手段が構成されているとともに、第２取付け板部２１Ｂの後端縁２１ｂと係合部２２Ａの内底面との対向面間には、取付け部材２２を装着するため若干の空隙が形成されている。
【００３３】
前記係合部２２Ａには、断熱パネル４との当接によって取付け基部２２Ｂの離脱側への回動を阻止する外れ止め部２２Ｄが、後方側（庫内奥側）に向かって突出する状態で連設されているとともに、外れ止め部２２Ｄの遊端部分２２ｄが、断熱パネル４から離間する側に屈曲形成されている。
【００３４】
そのため、補強用フレーム２１の取付け座Ａに取付けられたガスケット１３の取付け部材２２に対して外れ方向の外力が作用したとき、係合部２２Ａに連設された外れ止め部２２Ｄが断熱パネル４に当接して、係合部２２Ａと第２取付け板部２１Ｂの後端縁２１ｂとの係合箇所を支点とする取付け基部２２Ｂの離脱側への回動を阻止することができるから、ガスケット１３を確実、強固に取付けることができる。
【００３５】
しかも、図５の（イ）に示すように、取付け部材２２の係合部２２Ａを第２取付け板部２１Ｂの後端縁２１ｂに対して傾斜姿勢で差し込みながら係合させるとき、或いは、補強用フレーム２１の取付け座Ａに取付けられたガスケット１３の取付け部材２２に対して外れ方向の外力が作用して、係合部２２Ａに連設された外れ止め部２２Ｄが断熱パネル４に当接したときでも、外れ止め部２２Ｄの屈曲遊端部分２２ｄの先端が断熱パネル４に喰い込むことがなく、外れ止め部２２Ｄの先端による断熱パネル４の損傷を抑制することができる。
【００３６】
前記ガスケット１３を備えた取付け板部２２Ｃは、取付け基部２２Ｂの基板部分２２ｂに対してそれらの対向面間に空隙Ｓを形成する状態で片持ち状に一体形成されているとともに、この取付け板部２２Ｃの遊端側には、単独又は外扉１１と共に閉動される内扉８との当接に伴う取付け板部２２Ｃの弾性変形に連れて基板部分２２ｂに当接することにより空隙Ｓを略密封状態に閉止する当り部２２Ｅが一体形成されている。
【００３７】
そして、上述のように、ガスケット１３を備えた取付け板部２２Ｃが取付け基部２２Ｂの基板部分２２ｂに対して片持ち状態で一体形成されていて、閉動される内扉８との当接に伴って取付け板部２２Ｃが弾性変形することで、取付け板部２２Ｃの遊端側に一体形成された当り部２２Ｅが基板部分２２ｂに当接して、この基板部分２２ｂと取付け板部２２Ｃとの対向面間に形成される空隙Ｓが略密閉状態に閉止されるように構成されている場合には、取付け板部２２Ｃの弾性復元力がガスケット１３を内扉８側に押付ける力として機能することになり、ガスケット１３によるシール性能を向上することができる。
【００３８】
前記取付け部材２２を構成する係合部２２Ａ、取付け基部２２Ｂ、取付け板部２２Ｃ、外れ止め部２２Ｄは、例えば、ポリプロピレンや硬質塩化ビニルなどの硬質合成樹脂により一体成形され、ガスケット１３は軟質塩化ビニルなどの軟質合成樹脂により成形されていて、取付け部材２２とガスケット１３とが押出し成形により一体的に形成されている。
〔第２実施形態〕
図７、図８は自動販売機の扉密封構造の別実施形態を示し、前記ガスケット１３の取付け部材２２が、第２取付け板部２１Ｂの後端縁２１ｂに係合する横断面略Ｕの字状の係合部２２Ａと、それを第２取付け板部２１Ｂの後端縁２１ｂに係合させた状態で第１取付け板部２１Ａ側に回動させることにより両取付け板部２１Ａ，２１Ｂの表面に沿って外れ止め状態で装着される横断面略Ｌ字状の取付け基部２２Ｂと、開口側表面にガスケット１３が一体形成された横断面略Ｌ字状の取付け板部２２Ｃとから構成されているとともに、取付け基部２２Ｂのうち、第１取付け板部２１Ａに相対向する第１基板部分２２ｅには、係合部２２Ａを第２取付け板部２１Ｂの後端縁２１ｂに係合させた状態で第１取付け板部２１Ａ側に回動させたとき、第１取付け板部２１Ａの開口側表面との間に圧縮変形される変形部２３が一体的に設けられている。
【００３９】
図８の（ロ）に示すように、前記取付け基部２２Ｂの第１基板部分２２ｅが変形部２３を介して第１取付け板部２１Ａの開口側表面に接触している装着状態では、係合部２２Ａの係合端２２ａが第２取付け板部２１Ｂの後端縁２１ｂよりも前方側に突出形成されていて、補強用フレーム２１の取付け座Ａに装着された取付け部材２２の外れ止め手段が構成されている。
【００４０】
前記変形部２３は、取付け基部２２Ｂのうち、第２取付け板部２１Ｂに相対向する第２基板部分２２ｆ側に向かって傾斜する複数（当該実施形態では二つ）のヒレ状の変形突起から構成されているとともに、各変形突起２３は、取付け基部２２Ｂよりも軟質の合成樹脂材料で製作されている。
【００４１】
つまり、前記取付け部材２２を構成する係合部２２Ａ、取付け基部２２Ｂ、取付け板部２２Ｃは、例えば、ポリプロピレンや硬質塩化ビニルなどの硬質合成樹脂により一体成形され、ガスケット１３、複数の変形突起２３は軟質塩化ビニルなどの軟質合成樹脂により成形されていて、取付け部材２２とガスケット１３、複数の変形突起２３は押出し成形により一体的に形成されている。
【００４２】
また、外箱２の構成部材である天板２Ａ、両側板２Ｂ、背板２Ｃ、中底板２Ｅの各内側面には、断熱壁４の一例で、ウレタンフォーム等の断熱材で方形板状に成型され、かつ、庫内側に臨む内側面とそれに連続する端面をポリエチレン等の防湿性の樹脂製シート４ａで被覆してある断熱パネルが貼り付けられているとともに、断熱パネル４のうち、補強用フレーム２１の取付け座Ａに対向する角部には、第２取付け板部２１Ｂの後端縁２１ｂに対する取付け部材２２の係合部２２Ａの係合操作を許容するための空間を形成する傾斜面４Ａが形成されている。
尚、その他の構成は、第１実施形態で説明した構成と同一であるから、同一の構成箇所には、第１実施形態と同一の番号を付記してそれの説明は省略する。
【００４３】
〔その他の実施形態〕
（１）上述の各実施形態では、ガスケット１３と取付け部材２２を押出し成形により一体的に形成したが、ガスケット１３と取付け部材２２を別々に形成し、両者を互いに固着して構成することもできる。
すなわち、ガスケット１３と取付け部材２２とを別々の押出し成形機により各別に形成して、その後、両者を接着剤などにより接着して一体化することもできる。
その場合、取付け部材２２を取付け部材２２の長手方向の全長に亘って接着することも、また、多数の取付け部材２２を取付け部材２２の長手方向に沿って間隔を置いて接着することもできる。
【００４４】
（２）上述の各実施形態のように、外箱２の天板２Ａに固着される補強用フレーム２１の取付け座Ａの構造と、側板２Ｂに固着される補強用フレーム２１の取付け座Ａの構造を統一して、各取付け座Ａに固定されるガスケット１３及び取付け部材２２の横断面形状を同一形状に構成することにより、部品の共通化によって製造コストの低廉化を図ることができるが、天板２Ａ及び側板２Ｂに固着される補強用フレーム２１の構造が異なる場合には、各補強用フレーム２１の取付け座Ａの構造に応じた複数種類の取付け部材２２を製作することになる。
【００４５】
（３）上述の各実施形態では、ウレタンフォーム等の断熱材で製作された断熱パネル４の表面のうち、少なくとも商品収納庫３内に臨む内側面を含む複数の面を防湿性の樹脂製シート４ａで被覆したが、庫内に臨む内側面のみを防湿性の樹脂製シート４ａで被覆してもよい。
【図面の簡単な説明】
【図１】本発明の第１実施形態を示す自動販売機全体の斜視図
【図２】自動販売機全体の断面側面図
【図３】補強用フレームを取付け前の要部の分解斜視図
【図４】ガスケットの取付け部材を取付ける前の要部の分解斜視図
【図５】（イ）はガスケットの取付け部材を取付ける前の要部の拡大断面図
（ロ）はガスケットの取付け部材を取付けたときの要部の拡大断面図
【図６】扉閉止時におけるガスケット及び取付け部材の変形状態を示す要部の拡大断面図
【図７】本発明の第２実施形態を示し、ガスケットの取付け部材を取付ける前の要部の分解斜視図
【図８】（イ）はガスケットの取付け部材を取付ける前の要部の拡大断面図
（ロ）は扉閉止時におけるガスケット及び取付け部材の変形状態を示す要部の拡大断面図
【図９】従来の扉密封構造を示す要部の拡大断面図
【符号の説明】
Ａ 取付け座
Ｓ 空隙
２ 外箱
３ 商品収納庫
４ 断熱壁（断熱パネル）
４ａ 樹脂製シート
８ 扉（内扉）
１３ ガスケット
２１ フレーム（補強用フレーム）
２１Ａ 第１取付け板部
２１Ｂ 第２取付け板部
２１ｂ 後端縁
２２ 取付け部材
２２Ａ 係合部
２２Ｂ 取付け基部
２２Ｃ 取付け板部
２２Ｄ 外れ止め部
２２Ｅ 当り部
２２ｂ 基板部分
２２ｄ 遊端部分
２３ 変形部（変形突起部）[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention includes a product storage formed by providing a heat insulating wall inside an outer box, and a door that opens and closes an opening of the product storage, and a door for sealing a door around the opening of the product storage. The present invention relates to a door sealing structure of a vending machine to which a gasket is fixed.
[0002]
[Prior art]
Such a door-sealing structure is for sealing so that cold or warm heat in the product storage does not escape when the opening of the product storage is closed by the door. Conventionally, as shown in FIG. The door sealing structure is adopted.
In this conventional door sealing structure, a first mounting plate portion 50A and a first mounting plate portion 50A along the opening plane of the product storage 3 are mounted on a reinforcing frame 50 fixed to an opening end portion on the inner side surface of the outer box 2 made of sheet metal. A second mounting plate portion 50B extending from the inner end to the rear side (the inner side of the refrigerator) is bent and formed in an L-shape to form a mounting seat A for the mounting member 51 of the gasket 13 and a second mounting. A female screw member 52 made of a heat insulating material is attached to the plate portion 50B in a non-rotating state.
[0003]
The mounting member 51 of the gasket 13 includes a mounting base 51A having a substantially cross-sectional shape applied to the surfaces of both mounting plate portions 50A and 50B, and a bent end of a steel plate inner plate 53 constituting an inner box. A mounting plate 51C having a gasket 13 integrally formed with an insertion holding portion 51C for forming a groove 51B for inserting and holding the edge 53a between the opening side surface of the mounting base 51A and a substantially L-shaped cross section. The mounting base 51A of the mounting base portion 51A along the surface of the second mounting plate portion 50B of the reinforcing frame 50 includes a female screw on the reinforcing frame 50 side. A mounting hole 55 is formed through the member 52 for fixing the screw 54.
[0004]
The mounting base 51A, the insertion holder 51C, and the mounting plate 51D are formed of a hard synthetic resin, and the gasket 13 is formed of a soft synthetic resin.
[0005]
[Problems to be solved by the invention]
Conventionally, a large number of screws 54 are indispensable for mounting the mounting member 51 of the gasket 13 on the mounting seat A of the reinforcing frame 50, and the second mounting plate portion 50B of the reinforcing frame 50 is made of a heat insulating material. Since the formed female screw member 52 needs to be mounted in a detented state, not only the number of parts is increased, but also a tightening step of the screw 54 is required, and the number of steps required for assembly increases, resulting in an increase in cost. was there.
[0006]
The present invention has been made in view of the above situation, and its main problems are to reduce the number of parts as much as possible, to reduce the number of steps required for assembly, and to provide a gasket for sealing a door in an outer box. Another object of the present invention is to provide a door sealing structure for a vending machine that can be securely fixed to a vending machine.
[0007]
[Means for Solving the Problems]
A feature configuration according to claim 1 of the present invention includes a product storage formed by providing a heat insulating wall inside an outer box, and a door that opens and closes an opening of the product storage. A gasket for sealing the door is fixed along the opening, and a frame fixed to the opening end of the inner surface of the outer box has a first mounting plate along the opening plane of the product storage and an inner end thereof. And a second mounting plate portion extending rearward from the second mounting plate portion to form a mounting seat for a mounting member of the gasket, wherein the door sealing structure of a vending machine is provided,
The mounting member of the gasket is engaged with the rear end of the second mounting plate, and the engagement member is engaged with the rear end of the second mounting plate. And a mounting base which is mounted so as to be prevented from coming off along the surfaces of both mounting plates by being rotated.
[0008]
According to the above-mentioned characteristic configuration, when the mounting member of the gasket is mounted on the mounting seat of the frame, the engaging portion of the mounting member is engaged with the rear end edge of the second mounting plate portion on the frame side, and then the engaged state. By rotating the mounting base toward the first mounting plate as it is, the mounting base of the mounting member can be mounted along the surfaces of both mounting plates in a state where the mounting base is prevented from coming off.
[0009]
Therefore, the gasket can be securely fixed without the need for screws or female screw members as in the related art, and the cost can be reduced by reducing the number of parts and the associated man-hours.
[0010]
According to a second aspect of the present invention, there is provided a vending machine having a door sealing structure, wherein the engaging portion is provided with a detachment preventing portion for preventing the mounting base from rotating toward the detached side by contact with a heat insulating wall. It is located.
[0011]
According to the above-mentioned characteristic configuration, when an external force in a detaching direction is applied to the attachment member of the gasket attached to the attachment seat of the frame, the detachment stop portion connected to the engagement portion abuts on the heat insulating wall, Since the rotation of the mounting base toward the detachment side with the fulcrum as the fulcrum of the engagement between the engaging portion and the rear end edge of the second mounting plate portion can be prevented, the gasket can be securely and firmly mounted.
[0012]
According to a third aspect of the present invention, there is provided a vending machine having a door sealing structure, wherein a mounting plate portion provided with a gasket is provided on at least a door portion of the mounting base portion along a surface of a first mounting plate portion. The point is that they are continuously provided in such a manner that a gap in a closed state appears between the opposing surfaces when moving.
[0013]
According to the above-mentioned characteristic configuration, when the door is closed, a closed space is produced between the opposing surfaces of the mounting base portion and the mounting plate portion provided with the gasket along the surface of the first mounting plate portion. Therefore, the space functions as a heat insulating layer when the door is closed, and the heat insulating performance of the mounting member itself can be improved.
[0014]
According to a fourth aspect of the present invention, the door sealing structure of the vending machine is characterized in that the engaging base is engaged with the rear end of the second mounting plate on the mounting base. In this case, a deformable portion that is compressed and deformed when the member is turned to the surface of the first mounting plate portion is integrally provided.
[0015]
According to the above-mentioned characteristic configuration, after the engaging portion of the mounting member is engaged with the rear end edge of the second mounting plate portion on the frame side, the engaging member is rotated toward the first mounting plate portion in the engaged state. At this time, since the mounting base of the mounting member is mounted along the surfaces of both mounting plates in a state where the mounting base is not released, the deformed portion is compressed and deformed between the surface of the first mounting plate and the mounting base. The gasket can be securely and firmly attached.
[0016]
The characteristic structure of the door sealing structure of a vending machine according to claim 5 of the present invention is that the mounting member is formed of a hard synthetic resin, the gasket is formed of a soft synthetic resin, and the mounting member and the gasket are formed by extrusion. The point is that they are integrally formed.
[0017]
According to the above-mentioned characteristic configuration, the mounting of the gasket by the engaging portion and the mounting base of the mounting member formed of the hard synthetic resin is further strengthened, and the mounting member made of the hard synthetic resin and the gasket made of the soft resin are further strengthened. By integrally forming these by extrusion, the cost of the gasket and the mounting member can be reduced.
[0018]
A feature of the door sealing structure of a vending machine according to claim 6 of the present invention is that the mounting plate portion provided with the gasket forms a gap with the substrate portion of the mounting base in a state where a gap is formed between the opposed surfaces thereof. In addition to being formed integrally in a holding shape, the free end side of the mounting plate portion is provided with a gap by being brought into contact with the substrate portion along with the elastic deformation of the mounting plate portion caused by the contact with the door to be closed. The point is that a contact portion for closing is formed.
[0019]
According to the above characteristic configuration, the gap formed between the opposing surfaces of the substrate portion of the mounting base and the mounting plate portion provided with the gasket prevents elastic deformation of the mounting plate portion caused by contact with the door to be closed. Since the door is closed together, the gap functions as a heat insulating layer when the door is closed, and the heat insulating performance of the mounting member itself can be improved. In addition, the mounting plate portion provided with the gasket is integrally formed in a cantilevered state with the substrate portion of the mounting base, and the mounting plate portion is elastically deformed as it comes into contact with the door to be closed. Since the contact portion formed on the free end side of the mounting plate portion is brought into contact with the substrate portion, the elastic restoring force of the mounting plate portion functions as a force for pressing the gasket against the door, and the sealing performance of the gasket is improved. Can be improved.
[0020]
The characteristic structure of the door sealing structure of the vending machine according to claim 7 of the present invention is that the free end portion of the stopper portion is formed to be bent on the side away from the heat insulating wall.
[0021]
According to the above-mentioned characteristic configuration, when the engaging portion of the mounting member is engaged with the rear end edge of the second mounting plate portion while being inserted in an inclined posture, or the mounting member of the gasket mounted on the mounting seat of the frame. When the external force acting in the direction of the detachment acts on the heat-insulating wall and the detachment preventing portion connected to the engaging portion abuts on the heat insulating wall, damage to the heat insulating wall due to the tip of the detaching preventing portion can be suppressed.
[0022]
A characteristic configuration of the door sealing structure of the vending machine according to claim 8 of the present invention is that a resin sheet is attached to at least the inner surface of the heat insulating wall.
[0023]
According to the above-mentioned characteristic configuration, it is possible to reduce the heat-insulating structure while preventing the heat-insulating material forming the heat-insulating wall from absorbing moisture, without requiring a steel plate inner box as in the related art. Thus, the manufacturing cost can be reduced.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
[First Embodiment]
FIGS. 1 and 2 show a vending machine for selling a product 1 such as a canned beverage or a bottled beverage, which is provided with a heat insulating wall 4 forming a product storage 3 inside a sheet metal outer box 2. The cabinet 6 has a lower heat-insulating structure that is swingably openable and closable with respect to a lower half opening of the front opening of the commodity storage 3 except for the commodity insertion port 5 and has a commodity discharge port 7 at a lower end side. An inner door 8A and a product receiving portion 9 which is swingably openable and closable with respect to the front opening of the outer box 2 and receives the product 1 sent to the lower end through the product outlet 7 of the lower inner door 8A; An outer door 11 having a product outlet 10 for taking out the received product 1 to the outside is attached, and on the back of the product sample shelf 12 of the outer door 11, the upper half of the product storage 3 is provided. An upper inner door 8B of a heat insulating structure capable of covering the product insertion port 5 is swingably opened and closed. That.
[0025]
Therefore, in this embodiment, the inner door 8 that opens and closes the front opening of the product storage 3 is configured by the lower inner door 8A and the upper inner door 8B that can be opened and closed separately. A gasket 13 for sealing the door is fixed along the periphery of the opening, and an auxiliary gasket 20 for sealing the space between the lower inner door 8A and the upper inner door 8B when the door is closed is attached to the lower inner door 8A. It is attached to the upper side.
[0026]
As shown in FIGS. 1 and 2, a partition plate 14 having a heat insulating structure for partitioning and forming a plurality of rack mounting chambers 3A in the left-right direction is provided in the product storage 3 of the cabinet 6. On a ceiling wall portion facing the interior of the room 3A, a product storage rack 15 in which a plurality of rows of product storage passages are formed in the front-rear direction for stacking and storing a large number of products 1 along a vertical direction so that the products 1 can be paid out downward. Are mounted in a detachable manner in a suspended state from the front-rear direction, and a product storage passage of the product storage rack 15 is provided on the bottom side in the product storage 3 based on a product delivery command signal (sales command signal). A chute 16 for receiving the commodity 1 selectively discharged from the container and guiding the commodity 1 toward the commodity discharge port 7 and the commodity take-out port 10 of the lower inner door 8A, an in-compartment blower fan 17A, an evaporator 17B, and the like. Inside the warehouse with Disposed regulating unit 17 further into the outer box bottom side of the compartment outer space 18 in the 2, outside-compartment temperature control unit 19 is arranged with a condenser 19A and the blower fan 19B and the like.
[0027]
As shown in FIGS. 1 and 2, the outer box 2 is formed with a top plate 2 </ b> A, a pair of left and right side plates 2 </ b> B, a back plate 2 </ b> C, a bottom plate 2 </ b> D, and a middle bottom plate 2 </ b> E which is partitioned and formed into a product storage 3 and an outside space 18. Each of the inner surfaces of the top plate 2A, the side plates 2B, the back plate 2C, and the midsole plate 2E is an example of a heat insulating wall 4 and is molded into a rectangular plate shape with a heat insulating material such as urethane foam, and A heat insulation panel in which both sides and both sides or the entire surface are covered with a moisture-proof resin sheet 4a such as polyethylene is attached.
[0028]
As shown in FIGS. 3 to 6, a reinforcing frame 21 made of a steel plate is fixed to the opening side end of each of the inner surfaces of the top plate 2 </ b> A and both side plates 2 </ b> B of the outer box 2. At the rear of the reinforcing frame 21, a first mounting plate 21A extending along the opening plane of the product storage 3 and a second mounting plate 21B extending rearward from the inner end of the first mounting plate 21A are bent in an L-shape. A mounting seat A for the mounting member 22 of the gasket 13 is formed.
[0029]
The front and rear intermediate portions 21C of each reinforcing frame 21 are formed by bending a cross section in a substantially hat shape, and each front end portion 21D is formed by a front end bent portion 2A of the top plate 2A and a front end of both side plates 2B. It is bent at a right angle along the bent portion 2b.
[0030]
The reinforcing frame 21 fixed to the top plate 2A of the outer box 2 and the reinforcing frame 21 fixed to the side plate 2B have the same front-to-rear length, although there is a slight difference in the size of the hat-shaped intermediate bent portion 21C. Since the first mounting plate portion 21A and the second mounting plate portion 21B constituting the mounting seat A have the same shape and dimensions, the gasket 13 and the mounting member 22 fixed to each mounting seat A Are formed in the same shape.
[0031]
As shown in FIGS. 4 to 6, the mounting member 22 of each gasket 13 shared as described above has a substantially U-shaped cross section that engages with the rear end edge 21b of the second mounting plate portion 21B. Alternatively, the two mounting plate portions 21A are rotated by rotating toward the first mounting plate portion 21A side while engaging the U-shaped engaging portion 22A and the second mounting plate portion 21B with the rear end edge 21b. , 21B, a mounting base 22B having a substantially L-shaped cross section and a gasket 13 are integrally formed on the opening side surface, and the first mounting plate is provided at least when the door is closed. A mounting plate portion 22C that exposes a closed space S between the facing surface of the mounting base portion 22B and the substrate portion 22b along the opening-side surface of the portion 21A is provided as a main configuration.
[0032]
As shown in FIG. 5B, in the mounting state in which the board portion 22b of the mounting base 22B is in contact with the opening-side surface of the first mounting plate portion 21A, the engaging end 22a of the engaging portion 22A is in the second position. The second mounting plate 21B is formed so as to slightly project forward from the rear end edge 21b of the mounting plate 21B, and serves as a means for preventing the mounting member 22 mounted on the mounting seat A of the reinforcing frame 21 from coming off. A slight gap is formed between the rear end edge 21b of the mounting plate portion 21B and the opposing surface of the inner bottom surface of the engaging portion 22A for mounting the mounting member 22.
[0033]
The engaging portion 22A has a retaining portion 22D that prevents the mounting base portion 22B from rotating toward the disengagement side by abutting on the heat insulating panel 4 in a state that the retaining portion 22D protrudes toward the rear side (the inside of the compartment). The free end portion 22d of the retaining portion 22D is bent and formed on the side away from the heat insulating panel 4.
[0034]
Therefore, when an external force in the detaching direction acts on the attachment member 22 of the gasket 13 attached to the attachment seat A of the reinforcing frame 21, the detachment preventing portion 22 </ b> D connected to the engagement portion 22 </ b> A is attached to the heat insulating panel 4. The mounting base 22B can be prevented from rotating toward the disengagement side with the contact point between the engaging portion 22A and the rear end edge 21b of the second mounting plate portion 21B as a fulcrum. It can be installed securely and firmly.
[0035]
Further, as shown in FIG. 5A, when the engaging portion 22A of the mounting member 22 is engaged with the rear end edge 21b of the second mounting plate portion 21B while being inserted in an inclined posture, or for reinforcement. When an external force in the detaching direction acts on the attachment member 22 of the gasket 13 attached to the attachment seat A of the frame 21, and the detachment prevention portion 22 </ b> D connected to the engagement portion 22 </ b> A contacts the heat insulating panel 4. However, the tip of the bent free end portion 22d of the retaining portion 22D does not bite into the heat insulating panel 4, and damage to the insulating panel 4 due to the distal end of the retaining portion 22D can be suppressed.
[0036]
The mounting plate portion 22C provided with the gasket 13 is integrally formed in a cantilever manner with a space S between the opposing surfaces of the substrate portion 22b of the mounting base portion 22B. At the free end side of 22C, the gap S is substantially sealed by contacting the substrate portion 22b with the elastic deformation of the mounting plate portion 22C associated with the inner door 8 which is closed alone or together with the outer door 11. The contact portion 22E that closes in the state is integrally formed.
[0037]
Then, as described above, the mounting plate portion 22C provided with the gasket 13 is integrally formed in a cantilever state with the board portion 22b of the mounting base portion 22B, and is brought into contact with the inner door 8 to be closed. When the mounting plate portion 22C is elastically deformed, the contact portion 22E integrally formed on the free end side of the mounting plate portion 22C comes into contact with the substrate portion 22b, and the opposing surface between the substrate portion 22b and the mounting plate portion 22C. When the gap S formed therebetween is configured to be closed in a substantially closed state, the elastic restoring force of the mounting plate portion 22C functions as a force for pressing the gasket 13 against the inner door 8 side. Thus, the sealing performance of the gasket 13 can be improved.
[0038]
The engaging portion 22A, the mounting base portion 22B, the mounting plate portion 22C, and the retaining portion 22D constituting the mounting member 22 are integrally formed of a hard synthetic resin such as polypropylene or hard vinyl chloride, and the gasket 13 is made of a soft vinyl chloride. The attachment member 22 and the gasket 13 are integrally formed by extrusion molding.
[Second embodiment]
7 and 8 show another embodiment of a door sealing structure of a vending machine, in which a mounting member 22 of the gasket 13 engages with a rear end edge 21b of a second mounting plate portion 21B. The surface of both mounting plate portions 21A and 21B by rotating to the first mounting plate portion 21A side in a state where the engagement portion 22A and the second mounting plate portion 21B are engaged with the rear end edge 21b of the second mounting plate portion 21B. A mounting base 22B having a substantially L-shaped cross section, which is mounted in a state where the gasket 13 is not detached, and a mounting plate portion 22C having a substantially L-shaped cross section formed integrally with the gasket 13 on the opening side surface. At the same time, of the mounting base 22B, the first substrate portion 22e facing the first mounting plate portion 21A is engaged with the engaging portion 22A on the rear end edge 21b of the second mounting plate portion 21B. When the first mounting plate portion 21A is rotated, the first Deformable portion 23 to be compressed and deformed between the opening-side surface of the attaching plate portion 21A is integrally provided.
[0039]
As shown in FIG. 8 (b), in the mounting state where the first substrate portion 22e of the mounting base 22B is in contact with the opening-side surface of the first mounting plate portion 21A via the deforming portion 23, the engaging portion An engaging end 22a of the mounting member 22A is formed so as to protrude forward from a rear end edge 21b of the second mounting plate portion 21B, and constitutes means for preventing the mounting member 22 mounted on the mounting seat A of the reinforcing frame 21 from coming off. Have been.
[0040]
The deforming portion 23 is composed of a plurality of (two in this embodiment) fin-shaped deforming projections of the mounting base 22B that incline toward the second substrate portion 22f facing the second mounting plate portion 21B. In addition, each deformation projection 23 is made of a synthetic resin material softer than the mounting base 22B.
[0041]
That is, the engaging portion 22A, the mounting base 22B, and the mounting plate portion 22C that constitute the mounting member 22 are integrally formed of, for example, a hard synthetic resin such as polypropylene or hard vinyl chloride, and the gasket 13 and the plurality of deformation protrusions 23 are formed. The mounting member 22, the gasket 13, and the plurality of deformation projections 23 are integrally formed by extrusion molding.
[0042]
Further, each of the inner side surfaces of the top plate 2A, the side plates 2B, the back plate 2C, and the midsole plate 2E, which are the components of the outer box 2, is a rectangular plate made of a heat insulating material such as urethane foam. A heat insulating panel which is molded and has an inner surface facing the inside of the refrigerator and an end surface continuous with the inner surface covered with a moisture-proof resin sheet 4a made of polyethylene or the like is affixed. An inclined surface 4A is formed at a corner of the frame 21 facing the mounting seat A so as to allow the engaging operation of the engaging portion 22A of the mounting member 22 with the rear end edge 21b of the second mounting plate portion 21B. Is formed.
Since the other configuration is the same as the configuration described in the first embodiment, the same components are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.
[0043]
[Other embodiments]
(1) In each of the above-described embodiments, the gasket 13 and the mounting member 22 are integrally formed by extrusion. However, the gasket 13 and the mounting member 22 may be separately formed, and both may be fixed to each other. .
That is, the gasket 13 and the mounting member 22 can be separately formed by separate extruders, and then they can be integrated by bonding with an adhesive or the like.
In that case, the mounting members 22 can be bonded over the entire length of the mounting members 22 in the longitudinal direction, or a large number of mounting members 22 can be bonded at intervals along the longitudinal direction of the mounting members 22.
[0044]
(2) As in each of the above embodiments, the structure of the mounting seat A of the reinforcing frame 21 fixed to the top plate 2A of the outer box 2 and the mounting seat A of the reinforcing frame 21 fixed to the side plate 2B. By unifying the structure and forming the cross-sectional shapes of the gasket 13 and the mounting member 22 fixed to each mounting seat A in the same shape, the manufacturing cost can be reduced by using common parts, When the structure of the reinforcing frame 21 fixed to the top plate 2A and the side plate 2B is different, a plurality of types of mounting members 22 corresponding to the structure of the mounting seat A of each reinforcing frame 21 are manufactured.
[0045]
(3) In each of the above-described embodiments, among the surfaces of the heat insulating panel 4 made of a heat insulating material such as urethane foam, at least a plurality of surfaces including an inner surface facing the inside of the product storage 3 are made of a moisture-proof resin sheet. Although covered with 4a, only the inner surface facing the inside of the refrigerator may be covered with the moisture-proof resin sheet 4a.
[Brief description of the drawings]
FIG. 1 is a perspective view of an entire vending machine showing a first embodiment of the present invention. FIG. 2 is a sectional side view of the entire vending machine. FIG. 3 is an exploded perspective view of a main part before a reinforcing frame is attached. FIG. 4 is an exploded perspective view of a main part before mounting a gasket mounting member. FIG. 5A is an enlarged cross-sectional view of a main part before mounting a gasket mounting member, and FIG. FIG. 6 is an enlarged cross-sectional view of a main part showing a deformed state of a gasket and a mounting member when a door is closed. FIG. 7 is a sectional view showing a second embodiment of the present invention. FIG. 8 (a) is an enlarged sectional view of a main part before mounting a gasket mounting member, and FIG. 8 (b) is a main part showing a deformed state of the gasket and the mounting member when the door is closed. [Figure 9] Conventional door sealing Enlarged sectional view of a main part showing a concrete EXPLANATION OF REFERENCE NUMERALS
A Mounting seat S Void 2 Outer box 3 Product storage 4 Insulated wall (insulated panel)
4a Resin sheet 8 Door (inner door)
13 Gasket 21 Frame (reinforcing frame)
21A first mounting plate portion 21B second mounting plate portion 21b rear end edge 22 mounting member 22A engaging portion 22B mounting base portion 22C mounting plate portion 22D retaining portion 22E hitting portion 22b substrate portion 22d free end portion 23 deformed portion (deformed protrusion) Part)
