JP3657341B2

JP3657341B2 - Injection molding method for refrigerator door and door inner plate

Info

Publication number: JP3657341B2
Application number: JP03494596A
Authority: JP
Inventors: 熟大坪; 秀一外岡
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1996-01-25
Filing date: 1996-02-22
Publication date: 2005-06-08
Anticipated expiration: 2016-02-22
Also published as: JPH09264663A

Description

【０００１】
【発明の属する技術分野】
この発明は冷蔵庫の扉の内面に形成された陥没部の内側面に、食品等を収容する、収容容器を支持するための冷蔵庫扉の収容容器支持構造に関するものである。
【０００２】
【従来の技術】
図２６、図２７は例えば特開昭６１−８６５７５号公報に示された、従来の冷蔵庫の扉棚の要部斜視図および、要部断面図であり、図において、１は冷蔵庫の扉本体、２、３は上記扉本体を構成する扉外板と扉内板を示す。４は断熱材、５は取付ネジで、扉内板３を扉外板２に固定している。６は主に卵あるいは、缶詰等、比較的背の低い食品を収納するポケットで、後述するように、図２８、図２９に示すような方法で、扉内板３に取付けられている。前記扉内板３は、スチロール又はＡＢＳ樹脂等のプラスチック板を真空成形加工したもので、両側に縦方向の土手３ａが形成されている。
次に図２８、図２９により、ポケット６の取付構造を説明すると、前記扉内板土手３ａにはその内側壁に係止突起７及び該係止突起７のやや上方位置に側面突起８が設けられていると共に、扉内板３の後壁には、横方向の土手３ｂが形成されている。９はポケット６の側面に設けられた係止溝で、前記扉内板土手の係止突起７に嵌合する。６ａはポケット６の側面フランジで係止突起７のやや上方位置に設けられた側面突起８に図２７に示す如く係止する。更に１０はポケット６の両端に形成された裏側に肉ヌスミ部用凹１０ａを形成したツバ部で、ポケット６の係止溝９を扉内板土手３ａの係止突起７に嵌合させた時、該ツバ部１０が扉内板３の土手先端３ｃと当接するよう構成されている。
尚、前述のポケット６を扉内板３に取付けるためには、図２７に示す位置よりポケット６を上方に置いて、ポケットのツバ部１０を扉内板の土手先端３ｃに当接させた状態のまま下方に移動して扉内板土手３ａの内側壁に設けられた側面突起８を弾性変形させながら、ポケット６を図２９に示す位置まで下げる。
【０００３】
【発明が解決しようとする課題】
従来の冷蔵庫扉のポケットの支持構造は以上のように構成されているので、ポケットを支持するためのポケットの係止溝９および、側面フランジ６ａの板厚分食品収容側へ飛び出すので、土手３ａ間の内側間の本来、食品収容可能な範囲を、無駄なスペースと化しているとともに、扉内板土手３ａとの当接用ツバ部１０は肉ヌスミ用凹１０ａが形成されているので、近年流行の食品の視認性向上、ワイド感向上としての透明樹脂化した場合、内ヌスミ用凹１０ａが透けて見えてしまい、意匠性が低下する等の問題点があった。
【０００４】
この発明は上記のような問題点を解消するためになされたもので、冷蔵庫扉のポケットを支持するための係止部を扉内板内側の食品収容側へ飛び出すこと無く、食品収容部を有効に活用できるとともに、近年流行のポケットの透明樹脂化に伴なう意匠性の低下を防ぐとともに、ポケットの着脱を簡単に確実に行なうことができる、冷蔵庫扉の収容容器支持構造の提供を目的とする。
【０００５】
【課題を解決するための手段】
この発明に係る冷蔵庫扉は、冷蔵庫扉体の庫内側を構成する扉内板と、この扉内板の両側から立設した縦方向の土手と、それぞれの縦方向の土手内壁の前面から扉内板後壁に向かって設けられ、土手内壁を所定深さ落し込ませた土手段差部と、扉内板の後壁から立設し、土手段差部の下端付近から横に延びた横方向の土手と、この横方向の土手の上面に設けられた突起と、上面及び背面が開放した箱形状であり、底面に係止用凹溝を有し、土手段差部の前面から挿入され、横方向の土手の突起が係止用凹溝に嵌めこまれて係止されるポケットとを備えたことを特徴とする。
【０００６】
また、この発明に係る冷蔵庫扉は、土手段差部の深さを、ポケットの側面部の厚さと同程度としたことを特徴とする。
【０００７】
また、この発明に係る冷蔵庫扉は、土手段差部の後端縁部に係合用傾斜リブを設けるとともに、ポケット側面部の後端縁部に上下方向に係合用傾斜面を設け、ポケットが土手段差部に挿入された状態で、係合用傾斜面は係合用傾斜リブに係合されることを特徴とする。
【０００８】
また、この発明に係る冷蔵庫扉は、土手段差部の上辺に係合用上辺傾斜リブを設けるとともに、ポケット側面部の上辺に係合用上辺傾斜面を設け、ポケットが土手段差部に挿入された状態で、係合用上辺傾斜面は係合用上辺傾斜リブに係合されることを特徴とする。
【０００９】
また、この発明に係る冷蔵庫扉は、ポケット底面の係止用凹溝と前記ポケット後端との間に、前記横方向の土手に設けられた突起が前記ポケットに当接するのを防止する突起当接防止溝を設けたことを特徴とする請求項１記載の冷蔵庫扉。
【００１０】
また、この発明に係る冷蔵庫扉は、ポケットは係止用凹溝を左右に有し、ポケット底面後端の左右の係止用凹溝間の中央部付近に係合用傾斜面を設けるとともに、扉内板にポケット底面後端とほぼ面一となるように形成された位置決め用段部に浮き上り防止リブを設け、係合用傾斜面は浮き上り防止リブに係合されることを特徴とする。
【００１１】
また、この発明に係る冷蔵庫扉は、冷蔵庫扉体の庫内側を構成する扉内板と、この扉内板の両側から立設した縦方向の土手と、それぞれの縦方向の土手内壁の前面から扉内板後壁に向かって設けられ、土手内壁を所定深さ落し込ませた土手段差部と、この土手段差部に連なり、扉内板の後壁を所定深さ落し込ませた背面段差部と、扉内板の後壁から立設し、縦方向の土手に連なり、土手段差部の下端付近から横に延びた横方向の土手と、この横方向の土手に設けられたストッパー係合用凹部と、上面に係止用突起を有し、このストッパー係合用凹部に係合する、弾性変形の容易な樹脂製のストッパーと、上面が開放した箱形状であり、底面に係止穴を有し、土手段差部の前面から挿入され、ストッパーの係止用突起が係止穴に嵌めこまれて係止され、背面部が背面段差部まで挿入されるポケットとを備えたことを特徴とする。
【００１３】
また、この発明に係る冷蔵庫扉は、扉内板の断熱材側に、扉内板と一体に断面形状がＬ字状のアンカー片を形成したことを特徴とする。
【００１４】
また、この発明に係る冷蔵庫扉は、扉内板の縦方向の土手内壁の断熱材側にアンカーリブを設けたことを特徴とする。
【００１５】
また、この発明に係る冷蔵庫扉は、扉内板の外周フランジの断熱材側に凹状溝を形成したことを特徴とする。
また、この発明に係る冷蔵庫扉は、扉内板の外周フランジの断熱材側にパッキン部を形成したことを特徴とする。
また、この発明に係る冷蔵庫扉は、扉内板の断熱材側に切り起こし部を有する補強鉄板を設け、この切り起こし部をアンカー片に係合させたことを特徴とする。
【００１６】
【発明の実施の形態】
実施の形態１．
以下、この発明の一実施例を説明する。図１は、冷蔵室扉及び、この内面に支持されるポケットの要部断面斜視図。図２は図１のＡ−Ａ断面図で、図３は図１の正面図であり、図４は図１のポケットを取り外した状態の要部断面斜視図。図５はポケットを背面から見た要部断面斜視図である。
１は冷蔵庫扉本体、２は扉外板、３は扉内板であり、ＰＰまたはＡＢＳ樹脂等により射出成形または射出圧縮成形により形成されている。４はポリウレタンフォーム等による現場発泡した断熱材である。１１はドアキャップで、扉本体１の扉内板３側にドアガスケット（図示せず）を嵌合係止する押出成形によるドアサッシ１２を保持するよう形成するとともに、扉外板２端面を覆うよう形成されている。冷蔵庫扉本体１は上述の部品により構成され、断熱材４の接着効果により各部品が強固に固着されている。
扉内板３は通常ＡＢＳ等の真空成形にて形成されるが、真空成形ではシートを加熱して、真空圧による吸引力で、金型へシートを密着して成形する方式のため、シャープな形状や、シート厚さ以上の形状は形成不可能であり、この発明においては、射出成形または射出圧縮成形加工により細部形状を作成可能としている。３ａは扉内板３の両側に縦方向に形成した土手である。３ｆは扉内板後壁であり、該後壁３ｆより横方向の土手３ｂが一体に形成されている。３ｃは土手先端である。３ｄは土手内壁であり、土手先端３ｃの厚さを薄くスマートに見せるための傾斜壁３ｅが形成されている。
６はポケットであり、６ａは側面フランジ、６ｂは前面フランジ、６ｃは側面フランジ内壁、６ｄはポケット底面である。該ポケット底面６ｄの扉内板側にはポケット係止用凹溝１６が形成されている。側面フランジ６ａ後端縁部にはポケット６の上下方向に係合用傾斜面１７が形成されている。６ｅはポケット底面後端である。１３はポケット側面フランジ６ａの肉厚分とほぼ同一となるよう扉内板３の土手内壁３ｄを落し込ませた扉内板側面部の段落溝である土手段差部であり、該段差部１３の後端には、ポケット６の上下方向に係合用傾斜面１７と係合するよう扉内板の段落溝の後端縁部に係合用傾斜リブ１４が併設されている。１５は扉内板３のポケット下面側の横方向の土手３ｂに設けた台形状突起であり、ポケット底面６ｄの裏面に形成したポケット係止用凹溝１６に係止するよう配置されている。３ｇはポケット底面後端６ｅとほぼ面一となるよう形成された、位置決め用段部である。
次にポケット６の扉内板３への装着について説明する。ポケット６を手に取り、側面フランジ６ａを扉内板３の土手段差部１３に沿わせるよう、前方より扉内板後壁３ｆ側に挿入する。ポケット下面の扉内板側のポケット底面後端縁部６ｅが扉内板のポケット下面側の台形状突起１５と当接すると、さらに強い力でポケット６を挿入することで、ポケット下面後端６ｅおよびポケット下面６ｄが、台形状突起１５に乗り上げるよう弾性変形し、ポケット下面の扉内板側の係止用凹溝１６に台形状突起１５がはめ込まれると同時に、ポケット底面６ｄの弾性変形が解除され、ポケット係止用凹溝１６と、台形状突起１５が係止支持される。また、係合用傾斜面１７は係合用傾斜リブ１４に同時に係合されるよう形成されており、ポケット６の支持構造として左右の側面フランジ６ａとポケット底面６ｄの３面で係止されるとともに、食品荷重に対してのポケット６のガタツキは、ポケット６の側面フランジ６ａを扉内板３の土手段差部１３に適度なクリアランスを保持しながら挿入嵌合しているので、ポケット６の全高を支持面とすることにより支持強度を向上している。次にポケット６の外し方について説明する。ポケット６の支持構造として、手前方向の係止はポケット底面６ｄのポケット係止用凹溝１６と台形状突起１５の係合のみのため、ポケット底面６ｄを、手前より指等で、上方に弾性変形させ、台形状突起１５の係合を解除した状態で、ポケット６を手前に引き抜くことにより、ポケットの支持が解放される。
【００１７】
本発明は以上のような冷蔵庫扉の収容容器支持構造を形成しているので、扉開閉時の回転モーメントにより、食品荷重がポケット前面フランジ６ｂに当接し、前方向にたわむとその反動で側面フランジ６ａが、内側方向にたわもうとするが、係合用傾斜面１７が、係合用傾斜リブ１４に係止されているので、外れることなく安定に固着される。また土手内壁３ｄとポケット６の側面フランジ内壁６ｃがほぼ面一に形成されているので、食品収納有効面が、扉内板３の左右の土手内壁３ｄ間全幅を利用でき、デッドスペースが発生しない。また従来のポケットのようにツバ部が無いため、透明樹脂によるポケットとした場合でも、意匠性が低下することなく、かつ、前述のようにポケット側面フランジ内壁６ｃと扉内板土手内壁３ｄがほぼ面一に形成されているので、清掃が容易等の効果を奏する。
【００１８】
実施の形態２．
なお、上記実施の形態では扉内板３の土手段差部１３の後端にのみ係合用傾斜リブ１４を設けたものを示したが、図６〜図８の如く土手段差部上辺１３ａに係合用上辺傾斜リブ１８を設け、相手側ポケット６の側面フランジ６ａの上辺に、係合用上辺傾斜面１９を設けても良い。この効果として、ポケット６を扉内板３へ装着する際、土手段差部１３に沿わせて前方より、ポケット６の側面フランジ６ａを装入する時、側面フランジ６ａ後端の係合用上辺傾斜面１９の傾斜分、側面フランジ６ａの高さが低いので、係合用傾斜面１７が、扉内板３の係合用傾斜リブ１４の位置まで挿入して初めて支持されるので、挿入時の挿入力が少なくて済むと共に、ポケット底面後端６ｅが、台形状突起１５に乗り上げるよう弾性変形する間隔が少ないため、ポケット６の着脱に伴なう台形状突起１５の摩耗の低下が図れる。
【００１９】
実施の形態３．
また、ポケット下面６ｄのポケット係止用凹溝１６と、ポケット下面後端６ｅ間に台形状突起当接防止溝２０を設けてもよい。よって、実施の形態２にて述べた、ポケット６の装着時の挿入力がより少なくて済む等の効果を奏する。
【００２０】
実施の形態４．
また、ポケット６のポケット下面後端６ｅに左右のポケット係止用凹溝１６間の中央部付近に係合用傾斜面２１を設けるとともに相対応する扉内板３のポケット下面側に位置決め用段差部３ｇに、３角状の浮き上り防止リブ２２を設けて係止させてもよく、ポケット６のポケット下面６ｄの射出成形時のソリ等による上方向へのハネ上がりによるポケット係止溝１６への係合を確実に矯正する等の効果を奏する。
【００２１】
実施の形態５．
上記実施の形態では、卵、缶詰め等比較的背の低い小物食品等の収容容器の支持構造について述べたが、瓶類等、背の高い、質量の大きな食品を収容する、いわゆるボトルポケットの支持構造について説明する。図９、図１０において２３はボトルポケットで、側面フランジ２３ａと前面フランジ２３ｂと背面フランジ２３ｆにより４辺が連結した容器状に形成されている。２３ｄはボトルポケット下面で、ポケット係止穴２４が穿設されている。２３ｃは側面フランジ内壁である。２３ｅは背面フランジ後端である。扉内板３の扉内板後壁３ｆには土手３ａにある土手段差部１３と同様に背面段差部２５が連通して形成されている。２６は上記扉内板のポケット下面側の横方向の土手３ｂに形成された、ストッパー係合用凹部であり、抜け止め用リブ２６ａおよび横方向の土手３ｂの土手先端３ｃには角穴２６ｂが穿設されている。２７は上記ポケット下面の扉内板側に設けられた、ボトルポケット２３の係合用のストッパーであり、上述のストッパー係合用凹部２６に嵌着し、脱落しないようフック２７ａが前方に形成され、角穴２６ｂに係止される。２７ｃは抜け止め用リブ２６ａと当接するよう配設した支持リブである。２７ｂはボトルポケット底面２３ｄに穿設したポケット係止穴２４に係止するよう形成した、係止用突起である。ストッパー２７は、例えばＰＰまたはＰＯＭ等弾性変形の容易な樹脂により射出成形することで、係止用突起２７ｂを上面から押圧することで、容易に弾性変形し、下方へ傾斜するよう形成されている。次にボトルポケット２３の扉内板３への装着について説明する。ボトルポケット２３を手に取り側面フランジ２３ａを扉内板３の土手段差部１３に沿わせるよう前方より、扉内板後壁３ｆ側に挿入する。ボトルポケット底面２３ｄが、係止用突起２７ｂに当接すると、ボトルポケット底面２３ｄの押圧力で、係止用突起２７ｂが、下方へ傾斜するよう弾性変形し、ポケット係止穴２４に係止用突起２７ｂが嵌め込まれると同時に、係合用ストッパーの弾性変形が解除され、ポケット係止穴２４に係止用突起２７ｂが係止支持される。この状態では、実施の形態１にて述べた食品荷重による、側面フランジ２３ａの内側方向のたわみについては背面フランジ２３ｅにより支持されるので、係合用傾斜面１７や係合用傾斜リブ１４等は不要である。ボトルポケット２３の外し方は、係止用突起２７ｂを指で押圧して、下方に弾性変形させポケット係止穴２４の係合を解除した状態で手前に引き抜くことによりボトルポケット２３の支持が解放される。
上記実施の形態では扉内板３とボトルポケット２３の係合を、ポケット係止穴２４と係止用突起２７ｂにて、係止用突起２７ｂをボトルポケット底面２３ｄ側より押圧するよう示したが、係合用ストッパー２７側より、指を掛けて、係合、支持、解除するよう構成してもよい。また上記実施の形態ではボトルポケット２３の背面フランジ２３ｆを側面フランジ２３ａと同一の高さで示したが材料費削減によるコストダウンとして、両側面を残して傾斜または段差を付けて、低くしてもよく、要は扉内板後壁３ｆに形成した背面段差部の上端と、ボトルポケット２３背面フランジ後端が係合すれば、食品収容時の支持強度が確保される。
【００２２】
実施の形態６．
この発明における冷蔵庫扉のポケットの係合支持を、ポケット底部裏面側に扉内板とともに形成したことと、ポケットの側面フランジと扉内板、土手部内側が面一としたことで、収容容器の支持構造に伴うデッドスペースが発生しないとともに、ポケットのツバが不要なため、透明樹脂による意匠性の低下も防止できる。
【００２３】
この発明に係る冷蔵庫扉の収容容器支持構造は、ポケットの着脱時の係止をポケット底部裏面と扉内板横方向の土手面に相互して形成した凹と凸による嵌合とするとともに、扉内板土手部をポケットの幅とほぼ同一でかつ、ポケットの側面フランジと面一にもぐり込ませるための断差部を形成し、ポケットの側面フランジ後端、縦壁部を扉内板とともにＺ状嵌合を形成したものである。更にこの発明の製造方法の内、扉内板を射出成形または射出圧縮成形にて形成するものである。
【００２４】
実施の形態７．
この発明は、冷蔵庫庫内側に複数の土手を設け、冷蔵庫庫外側（断熱材側）に複数のアンカー等を設けた冷蔵庫扉内板３に関するものであり、上記扉内板３は射出成形または射出圧縮成形にて成形したものである。
図１２は上記射出成形による上記扉内板３の成形の流れを示したフローチャートである。図１３は上記射出圧縮成形による上記扉内板３の成形の流れを示したフローチャートであり、相違点は、射出圧縮成形で、樹脂充填後に再度型締め工程を追加している。
図１４はアンカー片３０を成形するための構造を示す。上記射出成形及び上記射出圧縮成形法の要部工程を示す図であり、図１４（ａ）は製品を取り出した後の型開き時であり、スライド駒３６が右方向に移動している。図１４（ｂ）は型締め、樹脂充填時の工程を示し、スライド駒３６が左方向に移動し、Ｌ字状の樹脂を充填するための空間部４１が形成され、この空間部４１に樹脂が充填されアンカー片３０が扉内板３と一体に形成される。
図１４（ｃ）は製品（アンカー片３０を一体に成形した扉内板３）取り出し時の工程を示し、スライド駒３６は図１４（ａ）と同様に右側へ移動しており、アンカー片３０部分が、型開き時干渉しないよう構成されているので、扉内板３の取り出しが可能である。
上記の説明は射出成形及び射出圧縮成形のいづれにおいてもほぼ同様であるが、射出圧縮成形の特異な点を説明する。金型を予め隙間のある状態まで型締めし、その状態で樹脂を充填すると、隙間の分だけ樹脂の充填空間が拡大されるため樹脂の射出圧力が少なくて済む。また、この状態では、樹脂が金型全体に充填されないので、次に隙間を設けない状態まで圧縮するように型締めを行い、充填空間が拡大している部分に充填されている樹脂を金型全体に圧縮し移動させ、扉内板を成形する。
上記射出圧縮成形による扉内板３の成形法は、圧縮するための型締め工程が加わることにより、扉内板外周に形成された弾性変形の容易な断熱材シール用パッキン部等の薄肉部を設けても、圧縮による型締めによる樹脂充填は容易である。従来の射出成形では薄肉部へ樹脂を充填する場合、成形圧力を上げて樹脂充填をする必要があり、寸法のバラツキや充填不良が発生する等の不具合が生じるが、それを解消するものである。
図１５（ａ）、図１５（ｂ）は従来の真空成形の成形法であり、加熱した樹脂シートを金型にのせ、吸気するものであるが、シートの板厚寸法のバラツキが生じる。
【００２５】
実施の形態８．
図１６は上記射出成形または上記射出圧縮成形により成形された扉内板３に一体に設けられたアンカー片３０を備えた冷蔵庫扉の収容容器支持構造を示す図である。図において、３０は断面がＬ字状であるアンカー片で、扉内板の横方向の土手３ｂの断熱材側に設けられたものである。
上記アンカー片３０を設けることにより、断熱材をアンカー部に充填させ、扉内板と断熱材の密着強度をより向上させ、食品荷重などによる扉内板と断熱材との剥離方向の応力に対し、十分な強度を確保することができる。
【００２６】
実施の形態９．
図１７は上記射出成形または上記射出圧縮成形により成形された扉内板３に一体に設けられたアンカーリブ３１を備えた冷蔵庫扉の収容容器横断面であり、図１８は係合用傾斜リブ部１４の詳細断面図である。図において、３１はアンカーリブで、扉内板３の土手内壁３ｄの断熱材側に設けられたものである。
上記アンカーリブ３１を設けることにより、扉内板３の土手部３ｄのポケット取付部の土手段差部の薄肉部を、アンカーリブ３１を断熱材で保持することにより強度を向上させることができる。
【００２７】
実施の形態１０．
図１９は上記射出成形または上記射出圧縮成形により成形された扉内板３に一体に設けられた凹状溝を備えた扉内板の断熱材側の斜視図である。図２０は図１９の要部斜視図であり、凹状溝３２を示している。また、図２１は凹状溝３２を備えた冷蔵庫扉３の収容容器支持構造を示す図で、図２２は図２１の係合用ストッパー取付部のＢ−Ｂ断面図でありＬ字状のアンカー片３０ａの断面図である。図において、３２は凹状溝で、扉内板３の外周フランジの断熱材側に凹状溝を形成したものである。
上記凹状溝３２は、ドアサッシ１２と、扉内板３外周との載置面からの断熱材の洩れを防止するために形成されたもので、凹凸形状になるよう凹状溝３２を形成し、断熱材の洩れる沿面距離を延長することにより断熱材の洩れを凹凸の途中で止めることができる。
【００２８】
実施の形態１１．
図２３（ａ）は上記射出成形または上記射出圧縮成形により成形された扉内板３に一体に設けられたパッキン部３３を備えた扉内板の断熱材側の斜視図である。図２３（ｂ）は図２３（ａ）の要部拡大斜視図であり、パッキン部３３を拡大し詳細を示している。
上記パッキン部３３を設けることにより、上記ドアサッシ１２と、扉内板３外周との載置面からの断熱材の洩れ防止を確実にすることができ、ＰＰ等のオレフィン系材料を利用することで、弾性変形が容易なパッキン部３３を形成し、断熱材充填発泡時の変形防止用の治具によりパッキン部３３がフラットとなるよう押圧することで、パッキン部３３が平坦になり、ドアサッシに密着することにより、シール性が改善される。
【００２９】
実施の形態１２．
図２４は補強鉄板３４、切り起こし部３５を備えた扉内板の断熱材側の斜視図である。図は、扉内板３の断熱材側に配設した補強鉄板３４に設けられた切り起こし部３５を上記射出成形または上記射出圧縮成形により成形された扉内板３に一体に設けられたアンカー片３０に係合させたものである。それにより、冷蔵庫扉として、断熱材の収縮に伴う、反り、ひねり等の変形を防止する目的で、装着する補強鉄板３４をアンカー片３０に係合させることで、固定するテープ等を廃止することができる。
図２５（ａ）、図２５（ｂ）、図２５（ｃ）は補強鉄板３４の取り付け方法を示し、扉内板３を側面から見た断面図である。補強鉄板３４の切り起こし部３５がＬ字状のアンカー片３０の下端に当接すると、切り起こし部３５が弾性変形し図の矢印方向に移動し、アンカー片３０の下端を通過後、切り起こし部３５が復帰することでアンカー片３０の内側壁に当接されて、補強鉄板３４が保持される。この係合構造を複数組配置し、係合方法を逆向きとすることで、位置決めが可能となる。
【００３０】
【発明の効果】
この発明に係る冷蔵庫扉は、冷蔵庫扉のポケットを支持するための係止部を扉内板内側の食品収容側へ飛び出すこと無く、食品収容部を有効に活用できる。
【００３１】
また、この発明に係る冷蔵庫扉は、土手内壁とポケットの側面内壁がほぼ面一に形成されているので、食品収納有効面が、扉内板の左右の土手内壁間全幅を利用でき、デッドスペースが発生しない。
【００３２】
また、この発明に係る冷蔵庫扉は、扉開閉時の回転モーメントにより、食品荷重がポケット前面部に当接し、前方向にたわむとその反動で側面部が内側方向にたわもうとするが、係合用傾斜面が、係合用傾斜リブに係止されているので、外れることなく安定に固着される。
【００３３】
また、この発明に係る冷蔵庫扉は、ポケットを扉内板に装着する際、土手段差部に沿わせて前方よりポケットの側面部を挿入する時、側面部後端の係合用上辺傾斜面の傾斜分、側面部の高さが低いので、係合用傾斜面が、扉内板の係合用傾斜リブの位置まで挿入して初めて支持されるので、挿入時の挿入力が少なくて済むと共に、ポケット底面後端が、突起に乗り上げるよう弾性変形する間隔が少ないため、ポケットの着脱に伴なう突起の摩耗の低下が図れる。
【００３４】
また、この発明に係る冷蔵庫扉は、ポケット下面のポケット係止用凹溝と、ポケット下面後端間に台形状突起当接防止溝を設けたことにより、ポケットの装着時の挿入力がより少なくて済む等の効果を奏する。
【００３５】
また、この発明に係る冷蔵庫扉は、ポケットのポケット下面の射出成形時のソリ等による上方向へのハネ上がりによるポケット係止部への係合を確実に矯正する等の効果を奏する。
【００３６】
また、この発明に係る冷蔵庫扉は、冷蔵庫扉のポケットを支持するための係止部を扉内板内側の食品収容側へ飛び出すこと無く、食品収容部を有効に活用できるとともに、ポケットの着脱を簡単に確実に行なうことができる。
【００３８】
また、この発明に係る冷蔵庫扉は、アンカー片を設けることにより、断熱材をアンカー部に充填させ、扉内板と断熱材の密着強度をより向上させ、食品荷重などによる扉内板と断熱材との剥離方向の応力に対し、十分な強度を確保することができる。
【００３９】
また、この発明に係る冷蔵庫扉は、アンカーリブを設けることにより、扉内板土手部のポケット取付部の土手段差部の薄肉部を、アンカーリブを断熱材で保持することにより強度を向上させることができる。
【００４０】
また、この発明に係る冷蔵庫扉は、凹凸形状になるよう凹状溝を形成し、断熱材の洩れる沿面距離を延長することにより断熱材の洩れを凹凸の途中で止めることができる。
【００４１】
また、この発明に係る冷蔵庫扉は、パッキン部を設けることにより、ドアサッシと、扉内板外周との載置面からの断熱材の洩れ防止を確実にすることができる。
【００４２】
また、この発明に係る冷蔵庫扉は、冷蔵庫扉として、断熱材の収縮に伴う、反り、ひねり等の変形を防止する目的で、装着する補強鉄板をアンカー片に係合させることで、固定するテープ等を廃止することができる。
【図面の簡単な説明】
【図１】この発明の一実施例による冷蔵庫扉の収容容器支持構造を示す要部断面斜視図である。
【図２】図１のＡ−Ａ断面図である。
【図３】図１の要部正面図である。
【図４】図１に対応するポケットを取り外した状態を示す要部断面斜視図である。
【図５】ポケット単体を背後側より示す要部断面斜視図である。
【図６】他の実施例を示す、図１相当の要部断面斜視図である。
【図７】他の実施例を示す、図４相当の要部断面斜視図である。
【図８】他の実施例を示す、図５相当の要部断面斜視図である。
【図９】他の実施例のボトルポケットの支持構造を示す要部断面斜視図である。
【図１０】図９に対応するボトルポケットを取り外した状態を示す要部断面斜視図である。
【図１１】図９の係合用ストッパー取付部のＢ−Ｂ断面図である。
【図１２】この発明の射出成形のフローチャート図である。
【図１３】この発明の射出圧縮成形のフローチャート図である。
【図１４】この発明の射出成形及び射出圧縮成形の成形法を示す図である。
【図１５】真空成形法を示す図である。
【図１６】冷蔵庫扉の収容容器支持構造を示す要部断面図である。
【図１７】この発明の冷蔵庫扉の収容容器断面図である。
【図１８】図１７の係合用傾斜リブの詳細断面図である。
【図１９】この発明の扉内板の断熱材側の斜視図である。
【図２０】図１９の要部斜視図である。
【図２１】この発明の冷蔵庫扉の収容容器断面図である。
【図２２】図２１の係合用ストッパー取付部のＢ−Ｂ断面図である。
【図２３】この発明の扉内板の断熱材側の斜視図である。
【図２４】この発明の扉内板の断熱材側の斜視図である。
【図２５】この発明の補強鉄板を取付方法を示す、要部断面図である。
【図２６】従来の冷蔵庫扉の収容容器支持構造を示す、要部斜視図である。
【図２７】図２６のＤ−Ｄ縦断面図である。
【図２８】図２６のＣ−Ｃ横断面図である。
【図２９】図２７のＥ−Ｅ縦断面図である。
【符号の説明】
１扉本体、２扉外板、３扉内板、３ａ土手、３ｂ横方向の土手、３ｃ土手先端、３ｄ土手内壁、３ｅ傾斜壁、３ｆ扉内板後壁、３ｇ位置決め用段部、４断熱材、５取付ネジ、６ポケット、６ａ側面フランジ、６ｂ前面フランジ、６ｃ側面フランジ内壁、６ｄポケット底面、６ｅポケット底面後端、７係止突起、８側面突起、９係止溝、１０当接用ツバ部、１０ａ肉ヌスミ用凹、１１ドアキャップ、１２ドアサッシ、１３土手段差部、１４係合用傾斜リブ、１５台形状突起、１６ポケット係止用凹溝、１７係合用傾斜面、１８係合用上辺傾斜リブ、１９係合用上辺傾斜面、２０台形状突起当接防止溝、２１底面係合用傾斜面、２２浮き上り防止リブ、２３ボトルポケット、２３ａ側面フランジ、２３ｂ前面フランジ、２３ｄボトルポケット底面、２３ｅ背面フランジ後端、２３ｆ背面フランジ、２４ポケット係止穴、２５背面段差部、２６ストッパー係合用凹部、２６ａ抜け止め用リブ、２６ｂ角穴、２７係合用ストッパー、２７ａフック、２７ｂ係止用突起、２７ｃ支持リブ、３０Ｌ字状アンカー片、３０ａＬ字状アンカー片、３１アンカーリブ、３２凹状溝、３３パッキン部、３４補強鉄板、３５切り起こし部、３６駒、３７金型、３８金型、３９樹脂、４０樹脂シート、４１空間部。[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a storage container support structure for a refrigerator door for supporting a storage container that stores food or the like on an inner surface of a depression formed on an inner surface of a refrigerator door.
[0002]
[Prior art]
  FIGS. 26 and 27 are, for example, a main part perspective view and a main part cross-sectional view of a door shelf of a conventional refrigerator disclosed in Japanese Patent Application Laid-Open No. 61-86575, in which 1 is a door body of the refrigerator, Reference numerals 2 and 3 denote a door outer plate and a door inner plate constituting the door body. 4 is a heat insulating material, and 5 is a mounting screw, which fixes the door inner plate 3 to the door outer plate 2. 6 is a pocket for mainly storing eggs or canned foods such as cans, and is attached to the door inner plate 3 by a method as shown in FIGS. 28 and 29 as will be described later. The door inner plate 3 is obtained by vacuum forming a plastic plate such as styrene or ABS resin, and has vertical banks 3a on both sides.
  Next, the attachment structure of the pocket 6 will be described with reference to FIGS. 28 and 29. The door inner plate bank 3a is provided with a locking projection 7 on the inner side wall and a side projection 8 slightly above the locking projection 7. In addition, a horizontal bank 3 b is formed on the rear wall of the door inner plate 3. Reference numeral 9 denotes a locking groove provided on a side surface of the pocket 6, which is fitted to the locking projection 7 of the door inner plate bank. Reference numeral 6a denotes a side flange of the pocket 6, which is locked to a side protrusion 8 provided slightly above the locking protrusion 7 as shown in FIG. Further, 10 is a flange portion formed with concave portions 10a for meat waste portions on the back side formed at both ends of the pocket 6, and when the locking groove 9 of the pocket 6 is fitted to the locking projection 7 of the door inner bank 3a. The brim portion 10 is configured to come into contact with the bank tip 3c of the door inner plate 3.
  In order to attach the aforementioned pocket 6 to the door inner plate 3, the pocket 6 is placed above the position shown in FIG. 27, and the collar portion 10 of the pocket is in contact with the bank tip 3c of the door inner plate. The pocket 6 is lowered to the position shown in FIG. 29 while moving downward and elastically deforming the side projection 8 provided on the inner wall of the door inner bank 3a.
[0003]
[Problems to be solved by the invention]
  Since the conventional structure for supporting the pocket of the refrigerator door is configured as described above, the pocket locking groove 9 for supporting the pocket and the thickness of the side flange 6a jump out to the food containing side, so the bank 3a Since the range in which food can be originally accommodated between the inside and the inside is made a useless space, the flange 10a for contact with the inner plate bank 3a is formed with a recess 10a for meat waste. When a transparent resin is used to improve the visibility and wideness of fashionable foods, there is a problem in that the concave 10a for internal nuisance is seen through and the design is lowered.
[0004]
  The present invention has been made to solve the above-described problems, and the food storage portion is effectively used without popping out the locking portion for supporting the pocket of the refrigerator door to the food storage side inside the door inner plate. The purpose is to provide a storage container support structure for refrigerator doors that can be used for the purpose of preventing the deterioration of the design properties associated with the recent trend of making pockets of transparent resin, and that allows easy and secure attachment and detachment of pockets. To do.
[0005]
[Means for Solving the Problems]
  The refrigerator door according to the present invention includes a door inner plate constituting the inside of the refrigerator door body, a vertical bank erected from both sides of the door inner plate, and the interior of the door from the front of each vertical bank inner wall. The earth means difference part, which is provided toward the rear wall of the board and the inner wall of the bank is lowered to a predetermined depth, and the horizontal bank that is erected from the rear wall of the door inner board and extends laterally from near the lower end of the earth means difference part And a protrusion provided on the upper surface of the bank in the horizontal direction, and a box shape with the upper surface and the back surface open, and has a locking groove on the bottom surface, inserted from the front surface of the soil means difference portion, The bank is provided with a pocket in which a bank protrusion is fitted and locked in a locking groove.
[0006]
  In addition, the refrigerator door according to the present invention is characterized in that the depth of the soil means difference portion is approximately the same as the thickness of the side surface portion of the pocket.
[0007]
  In addition, the refrigerator door according to the present invention is provided with an engagement inclined rib at the rear end edge of the soil means difference portion, and an engagement inclined surface is provided in the vertical direction at the rear end edge of the pocket side surface portion, so that the pocket has an earth means difference. The engaging inclined surface is engaged with the engaging inclined rib while being inserted into the portion.
[0008]
  Further, the refrigerator door according to the present invention is provided with the upper side inclined rib for engagement on the upper side of the soil means difference portion, the upper side inclined surface for engagement on the upper side of the pocket side surface portion, and the pocket being inserted into the soil means difference portion. The engaging upper side inclined surface is engaged with the engaging upper side inclined rib.
[0009]
  Further, the refrigerator door according to the present invention is provided with a protrusion contact for preventing a protrusion provided on the horizontal bank from coming into contact with the pocket between the locking groove on the bottom surface of the pocket and the rear end of the pocket. The refrigerator door according to claim 1, further comprising a contact prevention groove.
[0010]
  Further, the refrigerator door according to the present invention has a pocket having a locking groove on the left and right sides, an engagement inclined surface in the vicinity of the central portion between the left and right locking grooves on the rear end of the pocket bottom, and the door The positioning plate formed on the inner plate so as to be substantially flush with the rear end of the pocket bottom surface is provided with a lifting prevention rib, and the engaging inclined surface is engaged with the lifting prevention rib.
[0011]
  Further, the refrigerator door according to the present invention includes a door inner plate constituting the inside of the refrigerator door body, a vertical bank erected from both sides of the door inner plate, and a front surface of each vertical bank inner wall. The earth means difference part that is provided toward the rear wall of the door inner plate and has the bank inner wall dropped to a predetermined depth, and the back step part that is connected to the earth means difference part and has the rear wall of the door inner plate dropped to a predetermined depth. And a horizontal bank extending from the rear wall of the door inner plate, connected to the vertical bank and extending laterally from the vicinity of the lower end of the bank means difference portion, and a stopper engaging recess provided on the horizontal bank And a stopper made of resin that is easily elastically deformed and has a locking projection on the top surface and engages with the stopper engaging recess, a box shape with the top surface open, and has a locking hole on the bottom surface. , Inserted from the front of the soil means difference portion, the stopper's locking projection is fitted into the locking hole and engaged Is characterized in that a pocket rear portion is inserted to the rear stepped portion.
[0013]
  Moreover, the refrigerator door which concerns on this invention has cross-sectional shape L integrally with the door inner board in the heat insulating material side of the door inner board. A character-shaped anchor piece is formed.
[0014]
  Moreover, the refrigerator door which concerns on this invention provided the anchor rib in the heat insulating material side of the bank inner wall of the vertical direction of a door inner board.
[0015]
  The refrigerator door according to the present invention is characterized in that a concave groove is formed on the heat insulating material side of the outer peripheral flange of the door inner plate.
  Moreover, the refrigerator door which concerns on this invention formed the packing part in the heat insulating material side of the outer peripheral flange of a door inner board, It is characterized by the above-mentioned.
  The refrigerator door according to the present invention is characterized in that a reinforcing iron plate having a cut-and-raised portion is provided on the heat insulating material side of the door inner plate, and the cut-and-raised portion is engaged with an anchor piece.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
  An embodiment of the present invention will be described below. FIG. 1 is a cross-sectional perspective view of a main part of a refrigerator compartment door and a pocket supported by the inner surface. 2 is a cross-sectional view taken along the line AA of FIG. 1, FIG. 3 is a front view of FIG. 1, and FIG. 4 is a cross-sectional perspective view of a main part with the pocket of FIG. FIG. 5 is a cross-sectional perspective view of the main part when the pocket is viewed from the back.
  Reference numeral 1 denotes a refrigerator door body, 2 a door outer plate, and 3 a door inner plate, which are formed of PP or ABS resin by injection molding or injection compression molding. 4 is a heat-insulating material foamed in situ with polyurethane foam or the like. A door cap 11 is formed so as to hold the door sash 12 by extrusion molding that engages and locks a door gasket (not shown) on the door inner plate 3 side of the door body 1 and covers the end face of the door outer plate 2. Is formed. The refrigerator door main body 1 is comprised by the above-mentioned components, and each component is firmly fixed by the adhesive effect of the heat insulating material 4.
  The door inner plate 3 is usually formed by vacuum forming such as ABS, but in the vacuum forming, the sheet is heated, and the sheet is closely attached to the mold by the suction force by the vacuum pressure. A shape or a shape exceeding the sheet thickness cannot be formed. In the present invention, a detailed shape can be created by injection molding or injection compression molding. 3a is a bank formed on both sides of the door inner plate 3 in the vertical direction. 3f is a door inner plate rear wall, and the bank 3b of the horizontal direction is integrally formed from this rear wall 3f. 3c is the bank tip. Reference numeral 3d denotes an inner wall of the bank, and an inclined wall 3e is formed to make the bank tip 3c thin and look smart.
  6 is a pocket, 6a is a side flange, 6b is a front flange, 6c is an inner wall of the side flange, and 6d is a bottom surface of the pocket. A pocket locking concave groove 16 is formed on the door bottom plate side of the pocket bottom surface 6d. An engaging inclined surface 17 is formed in the vertical direction of the pocket 6 at the rear edge of the side flange 6a. 6e is a pocket bottom rear end. 13 is a soil means difference portion which is a step groove of the side surface portion of the door inner plate into which the bank inner wall 3d of the door inner plate 3 is dropped so as to be substantially the same as the thickness of the pocket side flange 6a. At the rear end, an engagement inclined rib 14 is provided at the rear end edge of the paragraph groove of the door inner plate so as to engage with the engagement inclined surface 17 in the vertical direction of the pocket 6. Reference numeral 15 denotes a trapezoidal protrusion provided on the bank 3b in the lateral direction on the lower surface side of the pocket of the door inner plate 3, and is arranged so as to be engaged with the pocket locking concave groove 16 formed on the back surface of the pocket bottom surface 6d. A positioning step 3g is formed so as to be substantially flush with the pocket bottom rear end 6e.
  Next, attachment of the pocket 6 to the door inner plate 3 will be described. The pocket 6 is picked up, and the side flange 6a is inserted from the front side to the door inner plate rear wall 3f side so that the side flange 6a extends along the soil means difference portion 13 of the door inner plate 3. When the pocket bottom rear edge 6e on the door inner plate side of the pocket lower surface comes into contact with the trapezoidal protrusion 15 on the pocket lower surface side of the door inner plate, the pocket 6 is inserted with a stronger force. Further, the pocket lower surface 6d is elastically deformed so as to ride on the trapezoidal protrusion 15, and at the same time the trapezoidal protrusion 15 is fitted into the locking groove 16 on the door inner plate side of the pocket lower surface, the elastic deformation of the pocket bottom surface 6d is released. Then, the pocket locking concave groove 16 and the trapezoidal protrusion 15 are locked and supported. The engaging inclined surface 17 is formed so as to be engaged with the engaging inclined rib 14 at the same time. The engaging inclined surface 17 is locked by three surfaces of the left and right side flanges 6a and the pocket bottom surface 6d as a support structure of the pocket 6, The backlash of the pocket 6 against food load is such that the side flange 6a of the pocket 6 is inserted and fitted to the soil means difference portion 13 of the door inner plate 3 while maintaining an appropriate clearance, so that the overall height of the pocket 6 is supported. The support strength is improved by using the surface. Next, how to remove the pocket 6 will be described. As the support structure of the pocket 6, the front locking is only the engagement of the pocket locking groove 16 and the trapezoidal protrusion 15 on the pocket bottom 6d, so that the pocket bottom 6d is elastically upward with a finger or the like from the front. With the deformed and the trapezoidal protrusion 15 disengaged, the pocket support is released by pulling the pocket 6 forward.
[0017]
  Since the present invention forms the storage container support structure for the refrigerator door as described above, the food load abuts against the pocket front flange 6b due to the rotational moment when the door is opened and closed, and the side flange is caused by the reaction when the food load bends forward. Although 6a tries to bend inward, since the engaging inclined surface 17 is locked to the engaging inclined rib 14, it is stably fixed without coming off. Further, since the inner wall 3d of the bank and the side flange inner wall 6c of the pocket 6 are formed substantially flush with each other, the food storage effective surface can use the entire width between the left and right bank inner walls 3d of the door inner plate 3, and no dead space is generated. . Further, since there is no brim portion as in the conventional pocket, even when the pocket is made of transparent resin, the design is not deteriorated, and the pocket side flange inner wall 6c and the door inner plate bank inner wall 3d are almost as described above. Since it is formed flush, there is an effect such as easy cleaning.
[0018]
Embodiment 2. FIG.
  In the above embodiment, the engagement rib 14 is provided only at the rear end of the soil means difference portion 13 of the door inner plate 3. However, as shown in FIGS. The upper side inclined rib 18 may be provided, and the upper side inclined surface 19 for engagement may be provided on the upper side of the side flange 6 a of the counterpart pocket 6. As an effect, when the pocket 6 is mounted on the door inner plate 3, when the side flange 6a of the pocket 6 is inserted from the front along the soil means difference portion 13, the upper inclined surface for engagement at the rear end of the side flange 6a. Since the height of the side flange 6a is low by the inclination of 19, the engaging inclined surface 17 is supported only after being inserted up to the position of the engaging inclined rib 14 of the door inner plate 3, so that the insertion force at the time of insertion is high. Since the pocket bottom rear end 6e is elastically deformed so as to ride on the trapezoidal protrusion 15, the wear of the trapezoidal protrusion 15 accompanying the attachment / detachment of the pocket 6 can be reduced.
[0019]
Embodiment 3 FIG.
  Further, a trapezoidal protrusion contact prevention groove 20 may be provided between the pocket locking concave groove 16 on the pocket lower surface 6d and the pocket lower surface rear end 6e. Therefore, the effects described in the second embodiment, such as less insertion force when the pocket 6 is mounted, can be obtained.
[0020]
Embodiment 4 FIG.
  Further, an engaging inclined surface 21 is provided in the vicinity of the central portion between the left and right pocket locking grooves 16 at the pocket lower surface rear end 6e of the pocket 6, and a positioning step portion is provided on the pocket lower surface side of the corresponding door inner plate 3. 3g may be provided with a triangle-shaped lifting prevention rib 22 to be locked, and the pocket lower surface 6d of the pocket 6 can be locked into the pocket locking groove 16 by upward rising by a warp or the like at the time of injection molding. There are effects such as positively correcting the engagement.
[0021]
Embodiment 5. FIG.
  In the above embodiment, the supporting structure of the container for storing relatively small food items such as eggs and canned foods has been described. However, bottles and the like, which support tall and large food items, such as bottle pockets, are supported. The structure will be described. 9 and 10, reference numeral 23 denotes a bottle pocket, which is formed in a container shape having four sides connected by a side flange 23a, a front flange 23b, and a rear flange 23f. 23d is a bottle pocket lower surface, and a pocket locking hole 24 is formed therein. 23c is a side flange inner wall. Reference numeral 23e denotes a rear flange rear end. A back step 25 is formed in communication with the rear wall 3f of the door inner plate 3 in the same manner as the earth means difference portion 13 on the bank 3a. Reference numeral 26 denotes a stopper engaging recess formed in the lateral bank 3b on the lower side of the pocket of the door inner plate, and a square hole 26b is formed in the retaining rib 26a and the bank tip 3c of the lateral bank 3b. It is installed. 27 is a stopper for engaging the bottle pocket 23 provided on the door inner plate side on the lower surface of the pocket. A hook 27a is formed on the front so as to be fitted into the stopper engaging recess 26 and not fall off. Locked in the hole 26b. Reference numeral 27c denotes a support rib disposed so as to come into contact with the retaining rib 26a. Reference numeral 27b denotes a locking projection formed so as to be locked in the pocket locking hole 24 formed in the bottle pocket bottom surface 23d. The stopper 27 is formed, for example, by being injection-molded with a resin that is easily elastically deformed, such as PP or POM, and is easily elastically deformed and inclined downward by pressing the locking projection 27b from the upper surface. . Next, attachment of the bottle pocket 23 to the door inner plate 3 will be described. The bottle pocket 23 is picked up, and the side flange 23a is inserted from the front to the door inner plate rear wall 3f side so that the side flange 23a extends along the soil means difference portion 13 of the door inner plate 3. When the bottle pocket bottom surface 23d comes into contact with the locking projection 27b, the locking projection 27b is elastically deformed so as to be inclined downward by the pressing force of the bottle pocket bottom surface 23d, and is locked in the pocket locking hole 24. At the same time that the protrusion 27 b is fitted, the elastic deformation of the engaging stopper is released, and the locking protrusion 27 b is locked and supported in the pocket locking hole 24. In this state, since the deflection in the inner side direction of the side flange 23a due to the food load described in the first embodiment is supported by the rear flange 23e, the engaging inclined surface 17 and the engaging inclined rib 14 are not necessary. is there. The bottle pocket 23 can be removed by pressing the locking projection 27b with a finger and elastically deforming it downward to release the pocket locking hole 24 so that the support of the bottle pocket 23 is released. Is done.
  In the above embodiment, the door inner plate 3 and the bottle pocket 23 are engaged with each other by pressing the locking projection 27b from the bottle pocket bottom surface 23d side by the pocket locking hole 24 and the locking projection 27b. The engagement stopper 27 may be configured to be engaged, supported, and released by placing a finger on the engagement stopper 27 side. In the above embodiment, the rear flange 23f of the bottle pocket 23 is shown as the same height as the side flange 23a. In short, if the upper end of the back step formed on the rear wall 3f of the door inner plate and the rear end of the back flange of the bottle pocket 23 are engaged, the support strength at the time of food storage is ensured.
[0022]
Embodiment 6 FIG.
  The engagement support of the pocket of the refrigerator door in this invention is formed with the door inner plate on the back side of the pocket bottom, and the side flange of the pocket, the door inner plate, and the bank portion inside are flush with each other. The dead space associated with the support structure does not occur, and the pocket brim is unnecessary, so that it is possible to prevent the design from being deteriorated by the transparent resin.
[0023]
  The storage container support structure for a refrigerator door according to the present invention is a fitting with a concave and a convex formed on the back surface of the bottom of the pocket and the bank surface in the lateral direction of the door when the pocket is attached and detached. Forms a gap to allow the inner bank bank part to be almost the same as the pocket width and flush with the side flange of the pocket. The rear side flange of the pocket and the vertical wall part together with the door inner plate A shape-like fitting is formed. Further, in the manufacturing method of the present invention, the door inner plate is formed by injection molding or injection compression molding.
[0024]
Embodiment 7 FIG.
  The present invention relates to a refrigerator door inner plate 3 provided with a plurality of banks on the inner side of the refrigerator cabinet and provided with a plurality of anchors and the like on the outer side (insulator side) of the refrigerator cabinet, and the door inner plate 3 is injection molded or injected. It is formed by compression molding.
  FIG. 12 is a flowchart showing a flow of molding the door inner plate 3 by the injection molding. FIG. 13 is a flowchart showing the flow of molding the door inner plate 3 by the injection compression molding. The difference is injection compression molding, in which a mold clamping step is added again after resin filling.
  FIG. 14 shows a structure for forming the anchor piece 30. It is a figure which shows the principal part process of the said injection molding and the said injection compression molding method, Fig.14 (a) is the time of mold opening after taking out a product, and the slide piece 36 is moving rightward. FIG. 14B shows a process at the time of mold clamping and resin filling, and the slide piece 36 moves leftward to form a space portion 41 for filling the L-shaped resin. The anchor piece 30 is formed integrally with the door inner plate 3.
  FIG. 14C shows a process at the time of taking out the product (the door inner plate 3 integrally formed with the anchor piece 30), and the slide piece 36 is moved to the right as in FIG. Since the portion is configured not to interfere when the mold is opened, the door inner plate 3 can be taken out.
  The above description is substantially the same for both injection molding and injection compression molding, but the peculiar points of injection compression molding will be described. If the mold is clamped to a state with a gap in advance and the resin is filled in that state, the resin filling space is expanded by the gap, so that the injection pressure of the resin can be reduced. In this state, since the resin is not filled in the entire mold, the mold is then clamped so as to be compressed until no gap is provided, and the resin filled in the portion where the filling space is expanded is molded. Compressed and moved to form the door inner plate.
  The molding method of the door inner plate 3 by the above-described injection compression molding is performed by adding a mold clamping step for compression, so that a thin-walled portion such as a heat-insulating seal packing portion that is easily deformed and formed on the outer periphery of the door inner plate. Even if provided, resin filling by mold clamping by compression is easy. In conventional injection molding, when resin is filled into a thin-walled part, it is necessary to increase the molding pressure to fill the resin, resulting in problems such as dimensional variation and defective filling, but this is solved. .
  15 (a) and 15 (b) show a conventional vacuum forming method in which a heated resin sheet is placed on a mold and sucked, but variations in the sheet thickness of the sheet occur.
[0025]
Embodiment 8 FIG.
  FIG. 16 is a view showing a storage container support structure for a refrigerator door provided with an anchor piece 30 integrally provided on the door inner plate 3 formed by the injection molding or the injection compression molding. In the figure, reference numeral 30 denotes an anchor piece having an L-shaped cross section, which is provided on the heat insulating material side of the bank 3b in the lateral direction of the door inner plate.
  By providing the anchor piece 30, the heat insulating material is filled in the anchor portion, the adhesion strength between the door inner plate and the heat insulating material is further improved, and against the stress in the peeling direction between the door inner plate and the heat insulating material due to food load or the like. Sufficient strength can be ensured.
[0026]
Embodiment 9 FIG.
  FIG. 17 is a cross-sectional view of a storage container of a refrigerator door provided with an anchor rib 31 integrally provided on the door inner plate 3 formed by the injection molding or the injection compression molding, and FIG. 18 is an engaging inclined rib portion 14. FIG. In the figure, 31 is an anchor rib provided on the heat insulating material side of the bank inner wall 3d of the door inner plate 3.
  By providing the anchor rib 31, the strength can be improved by holding the anchor rib 31 with a heat insulating material at the thin portion of the soil means difference portion of the pocket mounting portion of the bank portion 3 d of the door inner plate 3.
[0027]
Embodiment 10 FIG.
  FIG. 19 is a perspective view of the heat insulating material side of the door inner plate provided with a concave groove integrally provided in the door inner plate 3 formed by the injection molding or the injection compression molding. FIG. 20 is a perspective view of the main part of FIG. 19 and shows the concave groove 32. FIG. 21 is a view showing the storage container support structure of the refrigerator door 3 having the concave groove 32, and FIG. 22 is a sectional view taken along the line BB of the engaging stopper mounting portion of FIG. FIG. In the figure, reference numeral 32 denotes a concave groove, which is formed on the heat insulating material side of the outer peripheral flange of the door inner plate 3.
  The concave groove 32 is formed to prevent leakage of the heat insulating material from the mounting surface between the door sash 12 and the outer periphery of the door inner plate 3. By extending the creeping distance through which the material leaks, leakage of the heat insulating material can be stopped in the middle of the unevenness.
[0028]
Embodiment 11 FIG.
  FIG. 23A is a perspective view of the heat insulating material side of the door inner plate provided with a packing portion 33 provided integrally with the door inner plate 3 formed by the injection molding or the injection compression molding. FIG. 23B is an enlarged perspective view of a main part of FIG.
  By providing the packing portion 33, it is possible to reliably prevent leakage of the heat insulating material from the mounting surfaces of the door sash 12 and the outer periphery of the door inner plate 3, and by using an olefin-based material such as PP. The packing part 33 that is easily elastically deformed is formed, and the packing part 33 is flattened by pressing with a jig for preventing deformation at the time of foam filling with the heat insulating material, so that the packing part 33 becomes flat and adheres to the door sash. By doing so, the sealing performance is improved.
[0029]
Embodiment 12 FIG.
  FIG. 24 is a perspective view of the heat insulating material side of the door inner plate provided with the reinforcing iron plate 34 and the cut and raised portion 35. The figure shows an anchor integrally provided on the door inner plate 3 formed by the injection molding or the injection compression molding, with the cut and raised portion 35 provided on the reinforcing iron plate 34 disposed on the heat insulating material side of the door inner plate 3 being shown. It is engaged with the piece 30. Thereby, as a refrigerator door, by fixing the reinforcing iron plate 34 to be attached to the anchor piece 30 for the purpose of preventing deformation such as warping and twisting accompanying shrinkage of the heat insulating material, the tape to be fixed is abolished. Can do.
  25 (a), 25 (b), and 25 (c) are cross-sectional views of the door inner plate 3 as viewed from the side, showing a method of attaching the reinforcing iron plate 34. FIG. When the cut-and-raised portion 35 of the reinforcing iron plate 34 comes into contact with the lower end of the L-shaped anchor piece 30, the cut-and-raised portion 35 is elastically deformed and moves in the direction of the arrow in FIG. When the portion 35 is restored, it comes into contact with the inner wall of the anchor piece 30 to hold the reinforcing iron plate 34. Positioning is possible by arranging a plurality of sets of the engagement structures and making the engagement method reverse.
[0030]
【The invention's effect】
  The refrigerator door which concerns on this invention can utilize a food storage part effectively, without jumping out the latching | locking part for supporting the pocket of a refrigerator door to the food storage side inside a door inner board.
[0031]
  Further, the refrigerator door according to the present invention is such that the inner wall of the bank and the side wall of the pocket are substantially flush with each other, so that the food storage effective surface can use the full width between the left and right bank inner walls of the door inner plate, and dead space. Does not occur.
[0032]
  In addition, the refrigerator door according to the present invention causes the food load to come into contact with the front surface portion of the pocket due to the rotational moment when the door is opened and closed, and when it bends forward, the side portion tends to bend inward due to the reaction. Since the combined inclined surface is locked to the engaging inclined rib, it can be stably fixed without coming off.
[0033]
  Further, the refrigerator door according to the present invention, when the pocket is attached to the inner plate of the door, when the side surface portion of the pocket is inserted from the front along the soil means difference portion, the inclination of the upper side inclined surface for engagement at the rear end of the side surface portion Since the height of the side surface is low, the engaging inclined surface is supported only after being inserted to the position of the engaging inclined rib on the door inner plate, so that the insertion force during insertion can be reduced and the pocket bottom surface can be reduced. Since there are few intervals at which the rear end elastically deforms so as to ride on the protrusion, the wear of the protrusion accompanying the attachment / detachment of the pocket can be reduced.
[0034]
  In addition, the refrigerator door according to the present invention is provided with a pocket locking concave groove on the lower surface of the pocket and a trapezoidal protrusion abutting prevention groove between the rear end of the lower surface of the pocket, thereby reducing the insertion force when the pocket is attached. There are effects such as ending.
[0035]
  In addition, the refrigerator door according to the present invention has an effect of positively correcting the engagement with the pocket engaging portion due to the upward rising of the pocket by the warp during the injection molding of the pocket lower surface.
[0036]
  In addition, the refrigerator door according to the present invention can effectively use the food storage portion without popping out the locking portion for supporting the pocket of the refrigerator door to the food storage side inside the door inner plate, and can be attached and detached from the pocket. It can be done easily and reliably.
[0038]
  Moreover, the refrigerator door which concerns on this invention makes an anchor part fill with an anchor part by providing an anchor piece, improves the adhesive strength of a door inner board and a heat insulating material more, and the door inner board and heat insulating material by a food load etc. A sufficient strength can be secured against the stress in the peeling direction.
[0039]
  Moreover, the refrigerator door which concerns on this invention improves an intensity | strength by hold | maintaining the thin part of the earth means difference part of the pocket attachment part of a board inner bank bank part with a heat insulating material by providing an anchor rib. Can do.
[0040]
  Moreover, the refrigerator door which concerns on this invention can stop the leakage of a heat insulating material in the middle of an unevenness | corrugation by forming a concave groove | channel so that it may become uneven | corrugated shape, and extending the creeping distance from which a heat insulating material leaks.
[0041]
  Moreover, the refrigerator door which concerns on this invention can ensure the leak prevention of the heat insulating material from the mounting surface of a door sash and a door inner board outer periphery by providing a packing part.
[0042]
  Moreover, the refrigerator door which concerns on this invention is a tape which fixes as a refrigerator door by engaging the reinforcement iron plate to mount | wear with an anchor piece in order to prevent deformation | transformation of a curvature, a twist, etc. accompanying the shrinkage | contraction of a heat insulating material. Etc. can be abolished.
[Brief description of the drawings]
FIG. 1 is a cross-sectional perspective view showing a main part of a storage container support structure for a refrigerator door according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
FIG. 3 is a front view of main parts of FIG. 1;
FIG. 4 is a cross-sectional perspective view of a main part showing a state in which a pocket corresponding to FIG. 1 is removed.
FIG. 5 is a cross-sectional perspective view of a main part showing a single pocket from the back side.
6 is a cross-sectional perspective view of an essential part corresponding to FIG. 1, showing another embodiment.
7 is a cross-sectional perspective view of an essential part corresponding to FIG. 4, showing another embodiment.
FIG. 8 is a cross-sectional perspective view of a main part corresponding to FIG. 5, showing another embodiment.
FIG. 9 is a cross-sectional perspective view of a main part showing a support structure for a bottle pocket according to another embodiment.
10 is a cross-sectional perspective view of a main part showing a state where a bottle pocket corresponding to FIG. 9 is removed. FIG.
11 is a cross-sectional view taken along the line BB of the engaging stopper mounting portion of FIG. 9;
FIG. 12 is a flowchart of injection molding according to the present invention.
FIG. 13 is a flowchart of injection compression molding according to the present invention.
FIG. 14 is a view showing molding methods of injection molding and injection compression molding according to the present invention.
FIG. 15 is a diagram showing a vacuum forming method.
FIG. 16 is a cross-sectional view of the main part showing the storage container support structure for the refrigerator door.
FIG. 17 is a sectional view of the storage container of the refrigerator door according to the present invention.
18 is a detailed cross-sectional view of the engaging inclined rib of FIG. 17;
FIG. 19 is a perspective view of the heat insulating material side of the door inner plate according to the present invention.
20 is a perspective view of main parts of FIG.
FIG. 21 is a sectional view of the storage container of the refrigerator door according to the present invention.
22 is a cross-sectional view taken along the line BB of the engaging stopper mounting portion of FIG. 21. FIG.
FIG. 23 is a perspective view of the door inner plate of the present invention on the heat insulating material side.
FIG. 24 is a perspective view of the heat insulating material side of the door inner plate according to the present invention.
FIG. 25 is a cross-sectional view of an essential part showing a method for attaching the reinforcing iron plate of the present invention.
FIG. 26 is a perspective view of a main part showing a conventional container support structure for a refrigerator door.
27 is a DD longitudinal sectional view of FIG. 26. FIG.
28 is a cross-sectional view taken along the line CC of FIG.
29 is a vertical sectional view taken along line EE in FIG. 27. FIG.
[Explanation of symbols]
  1 door body, 2 door outer plate, 3 door inner plate, 3a bank, 3b horizontal bank, 3c bank tip, 3d bank inner wall, 3e inclined wall, 3f door inner plate rear wall, 3g positioning step, 4 heat insulation Material 5 Mounting screw 6 Pocket 6a Side flange 6b Front flange 6c Side flange inner wall 6d Pocket bottom 6e Pocket bottom rear end 7 Locking protrusion 8 Side protrusion 9 Locking groove 10 For contact Recessed part, 10a Recess for meat pus, 11 Door cap, 12 Door sash, 13 Soil means difference part, 14 Engagement inclined rib, 15 Trapezoidal protrusion, 16 Pocket locking recessed groove, 17 Engagement inclined surface, 18 Engagement upper side Inclined rib, 19 Upper inclined surface for engagement, 20 Trapezoidal protrusion contact prevention groove, 21 Inclined surface for bottom surface engagement, 22 Lifting prevention rib, 23 Bottle pocket, 23a Side flange G, 23b Front flange, 23d Bottle pocket bottom, 23e Rear flange rear end, 23f Rear flange, 24 Pocket locking hole, 25 Back step, 26 Stopper recess, 26a Retaining rib, 26b Square hole, 27 Stopper, 27a hook, 27b locking projection, 27c support rib, 30 L-shaped anchor piece, 30a L-shaped anchor piece, 31 anchor rib, 32 concave groove, 33 packing part, 34 reinforcing iron plate, 35 cut and raised part 36 pieces, 37 molds, 38 molds, 39 resin, 40 resin sheets, 41 spaces.

Claims

A door inner plate constituting the inside of the refrigerator door body,
A vertical bank erected from both sides of the door inner plate,
A bank means difference portion provided from the front of each vertical bank inner wall toward the rear wall of the door inner plate, and having the bank inner wall dropped into a predetermined depth;
Standing from the rear wall of the door inner plate, a horizontal bank extending laterally from near the lower end of the earth means difference portion,
A protrusion provided on the upper surface of the horizontal bank,
It has a box shape with the top and back open, has a locking groove on the bottom, is inserted from the front of the soil means difference portion, and the projection on the horizontal bank is fitted into the locking groove. And pockets to be locked
A refrigerator door characterized by comprising:

The refrigerator door according to claim 1, wherein the depth of the soil means difference portion is approximately the same as the thickness of the side surface portion of the pocket.

An engagement inclined rib is provided on the rear end edge of the soil means difference portion, an engagement inclined surface is provided in the vertical direction on the rear end edge of the pocket side surface portion, and the pocket is inserted into the soil means difference portion. The refrigerator door according to claim 1, wherein the engaging inclined surface is engaged with the engaging inclined rib.

An upper side inclined rib for engagement is provided on the upper side of the soil means difference portion, an upper side inclined surface for engagement is provided on the upper side of the pocket side surface portion, and the upper side inclination for engagement is in a state where the pocket is inserted into the soil means difference portion. The refrigerator door according to claim 1, wherein a surface is engaged with the engaging upper side inclined rib.

A protrusion contact prevention groove is provided between the locking groove on the bottom of the pocket and the rear end of the pocket to prevent the protrusion provided on the horizontal bank from contacting the pocket. The refrigerator door according to claim 1.

The pocket has the locking groove on the left and right sides, an engaging inclined surface is provided near the center between the left and right locking grooves on the rear end of the pocket, and the pocket is formed on the door inner plate. 2. A lifting prevention rib is provided in a positioning step formed so as to be substantially flush with a rear end of the bottom surface, and the engaging inclined surface is engaged with the lifting prevention rib. The refrigerator door as described.

A door inner plate constituting the inside of the refrigerator door body,
A vertical bank erected from both sides of the door inner plate,
A bank means difference portion provided from the front of each vertical bank inner wall toward the rear wall of the door inner plate, and having the bank inner wall dropped into a predetermined depth;
A back step portion that is connected to the soil means difference portion and has the rear wall of the door inner plate dropped into a predetermined depth;
Standing from the rear wall of the inner plate of the door, connected to the vertical bank, a horizontal bank extending laterally from the vicinity of the lower end of the bank means difference portion,
A recess for engaging the stopper provided on the bank in the lateral direction;
A stopper made of resin that has a locking projection on the upper surface and engages with the stopper engaging recess, and that is easily elastically deformed;
It has a box shape with an open top surface, has a locking hole on the bottom surface, is inserted from the front surface of the soil means difference portion, and the locking projection of the stopper is fitted into the locking hole and locked, and the back surface A pocket into which the part is inserted up to the back step part,
A refrigerator door characterized by comprising:

8. The refrigerator door according to claim 1 or 7, wherein an anchor piece having an L-shaped cross section is formed integrally with the door inner plate on the heat insulating material side of the door inner plate.

The refrigerator door according to claim 1 or 7, wherein an anchor rib is provided on a heat insulating material side of the inner wall of the bank in the vertical direction of the door inner plate.

The refrigerator door according to claim 1 or 7, wherein a concave groove is formed on the heat insulating material side of the outer peripheral flange of the door inner plate.

The refrigerator door according to claim 1 or 7, wherein a packing portion is formed on a heat insulating material side of an outer peripheral flange of the door inner plate.

The refrigerator door according to claim 9, wherein a reinforcing iron plate having a cut-and-raised portion is provided on a heat insulating material side of the door inner plate, and the cut-and-raised portion is engaged with the anchor piece.