JP2004011272A

JP2004011272A - Structure of bearing frame for sliding doors

Info

Publication number: JP2004011272A
Application number: JP2002166283A
Authority: JP
Inventors: Koji Ueno; 上野　浩司; Atsunari Oshiro; 大城　功成; Eiji Suzuki; 鈴木　英二; Shogo Kijima; 木嶋　祥吾
Original assignee: Hoshizaki Electric Co Ltd
Current assignee: Hoshizaki Electric Co Ltd
Priority date: 2002-06-06
Filing date: 2002-06-06
Publication date: 2004-01-15
Anticipated expiration: 2022-06-06
Also published as: JP3911445B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure of a bearing frame for sliding doors, which prevents formation of a gap between the bearing frame and the sliding doors when the doors are closed, and minimizes change in an interior atmosphere. <P>SOLUTION: According to the structure of the bearing frame, an upper right stopper 40 is attached to a right edge of an upper rail member 21, and a packing 35 is arranged on a right stile 38 of the front sliding door 18 slidably supported by a supporting frame 20, in a vertically extending manner. When an opening 16 is closed by the front sliding door 18, the packing 35 abuts on a right jamb member 25. At this time, a gap 45 is formed at an upper portion of the packing 35, which, however, is blocked with an upper shielding member 44 arranged on the upper right stopper 40. In other words, leakage of cold air from a housing chamber via the gap 45 is prevented. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明はスライド扉の支持枠構造に関し、更に詳細には、箱体の開口部を開閉するスライド扉をスライド可能に支持する支持枠において、スライド扉を閉成した際に支持枠との間に生ずる隙間を塞ぐようにした支持枠構造に関するものである。
【０００２】
【従来の技術】
食品や飲料品等の被保存物を冷蔵して保存するショーケースが、ショッピングセンタやコンビニエンスストア等に設置されている。このショーケースは、断熱構造の箱体に内部画成した収納室に、冷凍機構を構成する冷却器で熱交換した冷気を強制循環することで、該収納室に収納した被保存物を保冷するよう構成される。また箱体の前部には、前方に開放する矩形状の開口部が開設され、この開口部の内周囲には、２枚のスライド扉をスライド可能に支持する支持枠が配設されている。この支持枠は、開口部の内周上下に配設された上レール部材および下レール部材と、開口部の内周左右に配設された左枠部材および右枠部材とから構成され、上下のレール部材間に２枚のスライド扉が前後の関係で夫々スライド可能に支持され、各スライド扉を左方または右方にスライドして左側縁または右側縁を対応する左枠部材または右枠部材に当接することで、前記開口部を閉成するよう構成されている。
【０００３】
また、前記スライド扉を閉成した際に対応する枠部材に当接する側縁には、該枠部材に密着して開口部を密閉するパッキンが延設されており、スライド扉の閉成時には収納部内の冷気が逃出するのを防止するよう構成される。
【０００４】
【発明が解決しようとする課題】
前記ショーケースのスライド扉は、該扉を下レール部材から所定高さだけ持上げて、該下レール部材と扉下部との係合を解除した後、該スライド扉を前側に向けて斜めに降ろして上レール部材と扉上部との係合を解除することで、支持枠から取外し得るよう構成されている。このため、前記パッキンの上端は、スライド扉の下部と下レール部材との係合を解除する高さ分だけ低く設定され、該スライド扉を持上げた際に上レール部材とパッキンとが干渉しないよう構成されている。すなわち、パッキンの上端と上部レール部材とは前記高さ分だけ離間しているから、スライド扉を閉成しても、支持枠とスライド扉との上部隅部には、枠部材とパッキンとが当接しない隙間を生じ、この隙間から内部冷気が逃出する問題があった。
【０００５】
またスライド扉の下部には、下レール部材に設けられたレール条が嵌り込む溝を形成した下枠体が配設されており、前記パッキンの下端は下枠体の上端位置までしか延在していなかった。このため、支持枠とスライド扉との下部隅部においても、下枠体の高さ分だけパッキンと枠部材とが当接しない隙間を生じ、この隙間から内部冷気が逃出する問題も指摘される。
【０００６】
【発明の目的】
本発明は、前述した従来の技術に内在している前記課題に鑑み、これを好適に解決するべく提案されたものであって、スライド扉を閉成した際に支持枠との間に隙間を生じないようにし、内部雰囲気の変化を抑制し得るようにしたスライド扉の支持枠構造を提供することを目的とする。
【０００７】
【課題を解決するための手段】
前記課題を克服し、所期の目的を好適に達成するため、本発明に係るスライド扉の支持枠構造は、
箱体に開設された開口部の内周上下に配設された一対のレール部材および内周左右に配設された一対の枠部材から支持枠が構成され、上下のレール部材間に前記開口部を開閉する少なくとも２枚のスライド扉がスライド可能に支持され、各スライド扉の一側縁に配設されて上下方向に延在するパッキンを、該スライド扉を所定方向にスライドして対応する枠部材に当接することで開口部を閉成した際に、該パッキンと上レール部材との間に隙間を生ずるスライド扉の支持枠構造において、
前記上レール部材における扉スライド方向の両端部に配設され、一方のスライド扉を開放した際に該扉の端部が当接する機能部材に、他方のスライド扉を閉成した際に生ずる前記隙間を塞ぐ遮蔽部を設けたことを特徴とする。
【０００８】
前記課題を克服し、所期の目的を好適に達成するため、本願の別の発明に係るスライド扉の支持枠構造は、
箱体に開設された開口部の内周上下に配設された一対のレール部材および内周左右に配設された一対の枠部材から支持枠が構成され、上下のレール部材間に前記開口部を開閉する少なくとも２枚のスライド扉がスライド可能に支持され、各スライド扉の一側縁に配設されて上下方向に延在するパッキンを、該スライド扉を所定方向にスライドして対応する枠部材に当接することで開口部を閉成した際に、該パッキンと下レール部材との間に隙間を生ずるスライド扉の支持枠構造において、
前記下レール部材における扉スライド方向の両端部に配設され、一方のスライド扉を開放した際に該扉の端部が当接する機能部材に、他方のスライド扉を閉成した際に生ずる前記隙間を塞ぐ遮蔽部を設けたことを特徴とする。
【０００９】
前記課題を克服し、所期の目的を好適に達成するため、本願の更に別の発明に係るスライド扉の支持枠構造は、
箱体に開設された開口部の内周上下に配設された一対のレール部材および内周左右に配設された一対の枠部材から支持枠が構成され、上下のレール部材間に前記開口部を開閉する少なくとも２枚のスライド扉がスライド可能に支持され、各スライド扉の一側縁に配設されて上下方向に延在するパッキンを、該スライド扉を所定方向にスライドして対応する枠部材に当接することで開口部を閉成した際に、該パッキンと上下のレール部材との間に夫々隙間を生ずるスライド扉の支持枠構造において、
前記上レール部材における扉スライド方向の両端部に配設され、一方のスライド扉を開放した際に該扉の端部が当接する上機能部材に、他方のスライド扉を閉成した際に生ずる前記上側の隙間を塞ぐ上遮蔽部を設け、
前記下レール部材における扉スライド方向の両端部に配設され、一方のスライド扉を開放した際に該扉の端部が当接する下機能部材に、他方のスライド扉を閉成した際に生ずる前記下側の隙間を塞ぐ下遮蔽部を設けたことを特徴とする。
【００１０】
【発明の実施の形態】
次に、本発明に係るスライド扉の支持枠構造につき、好適な実施例を挙げて、添付図面を参照しながら以下説明する。
【００１１】
図１は、実施例に係るスライド扉の支持枠構造の要部を示すものであり、図２および図３は、実施例の支持枠構造が採用されるショーケースの全体構造を示すものである。図に示す如く、実施例のショーケース１０は、合成樹脂材料を真空成形により前方に開口する矩形箱状に形成した内箱１１の外側に、複数の外装板からなる外箱１２を所定間隔離間して配設すると共に、内箱１１と外箱１２との間の空間に断熱材を充填した断熱構造の箱体１３の内部に、被保存物が収納される収納室１４が画成されている。そして、冷凍機構を構成する冷却器１５により熱交換された冷気を、該収納室１４に強制循環することで、収納した被保存物を保冷するよう構成される。
【００１２】
前記箱体１３の前部に開設される矩形状の開口部１６の内周縁には、後述する前後の関係で位置する２枚のスライド扉１８，１９をスライド可能に支持する支持枠２０が配設されている。この支持枠２０は、開口部１６の内周上下に配設された上レール部材２１および下レール部材２２と、開口部１６の内周左右に配設された左枠部材２４および右枠部材２５とから構成される。なお、上レール部材２１および左右の枠部材２４，２５は、前記内箱１１と外箱１２との接続部材を兼ねている。
【００１３】
（上レール部材について）
前記支持枠２０を構成する上レール部材２１は、図４に示すように、合成樹脂材料を図示の断面形状で押出成形した長尺な部材であって、その延在長さは、前記開口部１６における上側の左右幅寸法と略同一になる寸法に設定される。この上レール部材２１には、前後に離間して幅方向に平行に延在する断面矩形状の通路２６，２７が形成されると共に、両通路２６，２７の下部には、上下に貫通するレール溝２８，２９が幅方向に平行に形成されている。そして、前側に位置する前レール溝２８および前通路２６に、前側に位置する前スライド扉１８の上端部３６ａが摺動可能に挿通支持されると共に、後側に位置する後レール溝２９および後通路２７に、後側に位置する後スライド扉１９の上端部３６ａが摺動可能に挿通支持されるようになっている。なお、両レール溝２８，２９の前後方向の寸法は、対応する通路２６，２７の前後方向の寸法より小さく設定してある。
【００１４】
（下レール部材について）
前記支持枠２０を構成する下レール部材２２は、図７に示すように、合成樹脂材料を図示の断面形状で押出成形した長尺な部材であって、その延在長さが、前記開口部１６における下部の左右幅寸法と略同一寸法に設定されている。この下レール部材２２は、前記上レール部材２１の各レール溝２８，２９と対向する位置に、レール条３０，３１が幅方向の略全長に亘って突設されており、前側に位置する前レール条３０に前スライド扉１８の下端部が摺動可能に載架されると共に、後側に位置する後レール条３１に後スライド扉１９の下端部が摺動可能に載架されるよう構成される。
【００１５】
（左右の枠部材について）
前記支持枠２０を構成する左右の枠部材２４，２５は左右対称であるので、一方（正面において右側に配設される方）の右枠部材２５の構成についてのみ説明し、他方の左枠部材２４の同一部材には同じ符号を付して示すこととする。図８に示すように、右枠部材２５は、合成樹脂材料を図示の断面形状で押出成形した長尺な部材であって、その延在長さが、前記開口部１６に上下のレール部材２１，２２を配設した状態での縦方向の寸法と略同一寸法に設定されている。また右枠部材２５には、前後に離間して開口部側に延出する一対の延出部３２，３３が平行に突設されると共に、両延出部３２，３３の間に金属板３４が配設され、各スライド扉１８，１９に配設した後述するパッキン３５が磁力吸着するよう構成される。
【００１６】
（スライド扉について）
前記支持枠２０における上下のレール部材２１，２２間にスライド可能に支持された前後に位置するスライド扉１８，１９の基本的な構成は同じであるので、正面右側に位置する前スライド扉１８の構成につき説明し、他方の後スライド扉１９の同一部材には同じ符号を付して示すこととする。
【００１７】
前記前スライド扉１８は、図２に示す如く、ガラスや合成樹脂等から形成される透明な矩形状の平板材３６と、該平板材３６の左右の外縁部に配設された合成樹脂製の左枠体３７と右枠体３８、および平板材３６の下側の外縁部に配設された合成樹脂製の下枠体３９とから構成される。平板材３６は、前記開口部１６の右半分を略閉成可能な寸法に設定され、右枠体３８（後スライド扉１９では左枠体３７）を前記対応する右枠部材２５（後スライド扉１９では左枠部材２４）に当接することで、該開口部１６を閉成するようになっている。
【００１８】
前記下枠体３９には、その長手方向に沿って溝３９ａが形成され（図７参照）、該溝３９ａが前記下レール部材２２の対応する前レール条３０にスライド可能に遊嵌されるようになっている。また、前記左右の枠体３７，３８の上下方向の長さ寸法は、前記平板材３６の上下方向の寸法よりも短かく設定され、該枠体３７，３８の上端部から突出する平板材３６の上端部３６ａが、図１に示す如く、前記対応する前レール溝２８および前通路２６に挿通されて摺動可能に支持されるよう構成される。なお、左右の両枠体３７，３８の上端は、前スライド扉１８を支持枠２０から取外すに際し、前記下枠体３９の溝３９ａが前レール条３０から離脱し得る高さだけ該前スライド扉１８を持上げたときに、前記上レール部材２１と干渉しない位置に設定してある。また、前通路２６の高さ寸法に関しても、前スライド扉１８を支持枠２０から取外す際に前記高さだけ持上げるのを許容するよう設定されている。
【００１９】
前記前スライド扉１８の一側縁である右枠体３８（後スライド扉１９の場合は左枠体３７）には、その長手方向（上下方向）の略長全に亘ってパッキン３５が延設され、前記開口部１６を前スライド扉１８で閉成した際に、該パッキン３５が前記右枠部材２５の内側面に密着して、前記収納室１４からの冷気の逃出を防止するよう構成されている。なお、前記パッキン３５としては、ゴムに磁性材料を混合したものが使用され、前スライド扉１８を閉成した際にパッキン３５を対応する右枠部材２５に配設した前記金属板３４に磁力吸着させることで、該スライド扉１８を閉成位置に保持すると共に密閉性を向上するよう構成してある。またパッキン３５の上端は、右枠体３８の上端に略一致して（図１参照）、前スライド扉１８の支持枠２０からの取外しを阻害しないようになっていると共に、その下端は下枠体３９の上端に略一致するよう設定される（図９参照）。
【００２０】
（上部ストッパについて）
前記上レール部材２１には、図２に示す如く、その長手方向（扉スライド方向）の両端部に、ゴム等の弾性を有する材料から形成された上機能部材としての上部ストッパ４０，４１が装着されている。左右に位置する上部ストッパ４０，４１の基本的な構成は同じであるので、正面右側に位置する右上部ストッパ４０の構成につき説明し、他方の左上部ストッパ４１の同一部材には同じ符号を付して示すこととする。
【００２１】
前記右上部ストッパ４０は、図５および図６に示す如く、矩形状に形成された基部２３が、上レール部材２１における両通路２６，２７を閉塞可能な寸法に設定されると共に、その一方の側端面には、前記前通路２６に挿通可能な断面形状に設定された前係止体４２と、後通路２７および後レール溝２９に挿通可能な断面形状に設定された後係止体４３とが前後の関係で平行に形成されている。そして、前係止体４２を対応する前通路２６に挿通すると共に、後係止体４３を対応する後通路２７および後レール溝２９に挿通して、基部２３の側端面を上レール部材２１の対向する端面に当接した位置で、当該右上部ストッパ４０が上レール部材２１の右端部に位置決め装着されるようになっている。すなわち、この右上部ストッパ４０は、図１に示す如く、上レール部材２１と右枠部材２５とが当接する部位に臨み、前記両通路２６，２７の長手方向の開口部およびレール溝２８，２９を夫々塞ぐと共に上レール部材２１と右枠部材２５同士を隙間なく当接して、当該当接部分から発泡漏れを生ずるのを防止するべく機能する。なお、右上部ストッパ４０においては、後係止体４３が前係止体４２より長く設定されて、該後係止体４３が後スライド扉（一方のスライド扉）１９を開放した際の緩衝材およびストッパとしても機能し、また左上部ストッパ４１においては、前係止体４２が後係止体４３より長く設定されて、該前係止体４２が前スライド扉（一方のスライド扉）１８を開放した際の緩衝材およびストッパとしても機能するよう構成される。但し、左上部ストッパ４１においては、前係止体４２が前通路２６および前レール溝２８に挿通可能な断面形状に設定され、後係止体４３が後通路２７に挿通可能な断面形状に設定されている。
【００２２】
前記右上部ストッパ４０の基部２３には、下方に突出する上遮蔽部（遮蔽部）４４が設けられている。この上遮蔽部４４は、図１に示す如く、前スライド扉１８を閉成した際に、前記パッキン３５、上レール部材２１および右枠部材２５との間に画成される上側の隙間４５を塞ぐよう構成される。
【００２３】
（下部ストッパについて）
前記下レール部材２２には、図２に示す如く、その長手方向（扉スライド方向）の両端部に、ゴム等の弾性を有する材料から形成された下機能部材としての下部ストッパ４６，４７が夫々装着されるよう構成される。左右に位置する下部ストッパ４６，４７の構成は同じであるので、正面右側に位置する右下部ストッパ４６の構成につき説明し、他方の左下部ストッパ４７の同一部材には同じ符号を付して示すこととする。
【００２４】
前記右下部ストッパ４６は、図１０および図１１に示す如く、略矩形状に形成された本体部４８の長手方向の一端部側の下面に、前記下レール部材２２の後レール条３１に嵌合可能な嵌合溝４８ａが形成され、該嵌合溝４８ａを後レール条３１に嵌合することで、当該右下部ストッパ４６が下レール部材２２の右端部に装着されるよう構成される。そして、この装着状態において前記本体部４８における嵌合溝４８ａが形成される端部とは反対の他端部は、図８に示す如く、前記右枠部材２５の内側面（金属板３４）に当接するよう設定される。また本体部４８の他端部には、下部ストッパが装着されるレール条とは反対のレール条側、すなわち右下部ストッパ４６では前レール条３０側に向けて突出する下遮蔽部（遮蔽部）４９が設けられる。そしてこの下遮蔽部４９が、図８に示す如く、前スライド扉１８を閉成した際に、前記パッキン３５、下レール部材２２および右枠部材２５との間に画成される下側の隙間５０を塞ぐよう構成される。なお、左下部ストッパ４７は、嵌合溝４８ａを前レール条３０に嵌合することで、他端部が左枠部材２４の内側面に当接した状態で下レール部材２２の左端部に装着され、後レール条３１側に向けて突出する下遮蔽部（遮蔽部）４９により、パッキン３５、下レール部材２２および左枠部材２４との間に画成される下側の隙間５０を塞ぐよう構成されている。
【００２５】
前記右下部ストッパ４６の本体部４８は、後スライド扉（一方のスライド扉）１９を開放した際に該扉１９の右端部が当接して、緩衝材およびストッパとしても機能する。また、右下部ストッパ４６の本体部４８における嵌合溝４８ａが形成される下面で、下遮蔽部４９が突出する側と反対側において長手方向に延在する稜部、本体部４８の他端部における下遮蔽部４９が突出する側と反対側において上下方向に延在する稜部、および下遮蔽部４９の上下両側において前後に延在する稜部の夫々は、斜めに面取りされた傾斜面５１とされている。そして、右下部ストッパ４６を下レール部材２２に装着した際に、下レール部材２２と右枠部材２５との接合内縁部に対して下遮蔽部４９の下側に位置する傾斜面５１が対向して所要の隙間を画成し、両部材２２，２５の接合部を埋めるコーキング（図示せず）が右下部ストッパ４６に付かないようになっている。更に、右下部ストッパ４６のその他の傾斜面５１は、該ストッパ４６を下レール部材２２に装着した状態で、前記右枠部材２５における後側の延出部３３の内側延出基端縁や、下レール部材２２における後レール条３１の後側に立設された後壁５２の内側立設基端縁と対向して隙間を画成し、これら各隙間を介して下レール部材２２に溜まる結露水等を排出させ得るよう構成される。なお、左下部ストッパ４７においては、該ストッパ４７を下レール部材２２に装着した状態で、下レール部材２２と前記左枠部材２４との接合内縁部、左枠部材２４における前側の延出部３２の内側延出基端縁、および下レール部材２２における前レール条３０の前側に立設された前壁５３の内側立設基端縁の夫々に対して各傾斜面５１が対向して隙間を画成し、これら各隙間を介して結露水等を排出させるようになっている。
【００２６】
【実施例の作用】
次に、前述した実施例に係るスライド扉の支持枠構造の作用につき説明する。
前記箱体１３を形成するに際しては、前記内箱１１に対して、上下のレール部材２１，２２および左右の枠部材２４，２５を所定位置に取付けると共に、該内箱１１の外側に所定間隔離間して外箱１２を取付ける。なお、前記上レール部材２１の左右両端部に、前記上部ストッパ４０，４１を予め夫々装着し、該上レール部材２１と左右の枠部材２４，２５との接合部を隙間なく当接させる。この状態で、両箱１１，１２の間に画成される空間に断熱材を充填発泡することで、断熱構成の箱体１３が製造される。この場合に、上レール部材２１と左右の枠部材２４，２５との接合部は上部ストッパ４０，４１により隙間なく当接しているから、当該部位から発泡漏れが発生するのは好適に防止される。
【００２７】
前記下レール部材２２の左右両端部に、前記下部ストッパ４６，４７を夫々装着した後、前記支持枠２０に前後のスライド扉１８，１９を取付ける。両スライド扉１８，１９において、左右の枠体３７，３８およびパッキン３５の上端は、上レール部材２１から所定長さだけ下方に離間しており、各スライド扉１８，１９を下レール部材２２から所定高さだけ持上げて、該下レール部材２２のレール条３０，３１から前記下枠体３９，３９の溝３９ａ，３９ａを離脱させた後、該スライド扉１８，１９を前側に向けて斜めに降ろして上レール部材２１の通路２６，２７およびレール溝２８，２９から前記平板材３６，３６の上端部３６ａ，３６ａを引抜くことで、当該スライド扉１８，１９を支持枠２０から取外すことができる。なお、下部ストッパ４６，４７を下レール部材２２に装着した際に、該下レール部材２２と左右の枠部材２４，２５との接合内縁部と前記傾斜面５１とが対向して隙間が形成されるから（図９参照）、当該部位を目止めしているコーキングが該ストッパ４６，４７に付くことはなく、また該コーキングにより下部ストッパ４６，４７が適正な位置に装着されなくなることもない。
【００２８】
前述したようにして支持枠２０にスライド可能に取付けた、例えば前スライド扉１８により前記開口部１６を閉成するべく右方にスライドすると、該前スライド扉１８の右枠体３８に配設されている前記パッキン３５が、前記右枠部材２５の金属板３４に磁力吸着し、前スライド扉１８は閉成位置に保持される。またパッキン３５が右枠部材２５に密着することで、両者２５，３５の間に隙間がなくなり、前記収納室１４からの冷気の逃出は防止される。この場合において、パッキン３５は前スライド扉１８の上下方向の全長に亘って配設されておらず、該パッキン３５が配設されていない前スライド扉１８の上部および下部と支持枠２０との間には隙間４５，５０が夫々画成される。
【００２９】
実施例の支持枠２０では、前記上レール部材２１に配設した右上部ストッパ４０および下レール部材２２に配設した右下部ストッパ４６の夫々の遮蔽部４４，４９が、対応する前記隙間４５，５０を塞ぐように位置する（図１，図９参照）。従って、前スライド扉１８と支持枠２０との間には、該扉１８の上下方向の略全長に亘って隙間を生ずることはなく、前記収納室１４からの冷気の逃出を好適に防止することができる。また右上部ストッパ４０および右下部ストッパ４６は、後スライド扉１９を開放した際に、該扉１９の右端部が当接して緩衝材およびストッパとして機能し、大きな騒音が発生したり後スライド扉１９が破損するのは防止される。なお、実施例のように上レール部材２１に対して平板材３６の上端部３６ａを直に支持するよう構成した場合は、前スライド扉１８を閉成した際には該上端部３６ａが右上部ストッパ４０に当接するが、このときであっても該ストッパ４０は弾性材料から構成されているから平板材３６が破損することはない。また、支持枠２０にスライド可能に取付けた後スライド扉１９により前記開口部１６を閉成する場合や、前スライド扉１８を開放する場合においての作用は、前述したと同様になる。
【００３０】
前記上下の隙間４５，５０を塞ぐ遮蔽部４４，４９は、上下のレール部材２１，２２に装着される上下のストッパ４０，４１，４６，４７に設けられているから、該隙間４５，５０を塞ぐための別部材をネジ等を用いて取付ける必要はなく、部品点数や組付け工数が増加することはない。また上部ストッパ４０，４１に関しては、上レール部材２１に嵌挿されているから、簡単に脱落することはない。
【００３１】
前記下部ストッパ４６，４７に関しては、左右同一の構成のものを使用するようにしたから、左右を逆に装着することはなく、また加工コストを低廉に抑えると共に部品管理が簡単となる。また下部ストッパ４６，４７は下レール部材２２に嵌挿されているだけなので、清掃に際して簡単に取外すことができ、常に衛生的に保ち得る。更に、下部ストッパ４６，４７の各稜部を傾斜面５１としたことで、下レール部材２２に装着した際に各傾斜面５１と対向する部分に隙間を画成し、これらの隙間から下レール部材２２に溜まる結露水等を排出することができる。
【００３２】
実施例では、スライド扉を所定方向にスライドして対応する枠部材に当接することで開口部を閉成した際に、パッキンと上下のレール部材との間に夫々隙間を生ずる構成のショーケースの場合で説明したが、上または下の何れか一方にのみ隙間を生ずる構成のものであってもよく、対応する上また下の何れかのレール部材に遮蔽部を有する機能部材を装着するものであればよい。また実施例では、箱体に内部画成した収納室を冷却する構成で説明したが、収納室を加温するものであってもよい。
【００３３】
【発明の効果】
以上説明した如く、請求項１の発明に係るスライド扉の支持枠構造では、スライド扉により開口部を閉成した際に、パッキンと上レール部材との間に生ずる隙間を、一方のスライド扉を開放した際のストッパとして機能する機能部材に設けた遮蔽部で塞ぐよう構成したから、箱体の内部雰囲気が変化するのを防止することができる。また、請求項２の発明に係るスライド扉の支持枠構造では、スライド扉により開口部を閉成した際に、パッキンと下レール部材との間に生ずる隙間を、一方のスライド扉を開放した際のストッパとして機能する機能部材に設けた遮蔽部で塞ぐよう構成したから、箱体の内部雰囲気が変化するのを防止することができる。
【００３４】
更に、請求項３の発明に係るスライド扉の支持枠構造では、スライド扉により開口部を閉成した際に、パッキンと上下のレール部材との間に生ずる夫々の隙間を、一方のスライド扉を開放した際のストッパとして機能する上下の機能部材に設けた上下の遮蔽部で夫々塞ぐよう構成したから、スライド扉の上下方向の略全長に亘って開口部を密閉することができ、箱体の内部雰囲気が変化するのを好適に防止し得る。
【図面の簡単な説明】
【図１】実施例に係るスライド扉の支持枠構造における上レール部材および右枠部材の配設部位を示す縦断正面図である。
【図２】実施例に係る支持枠構造が採用されるショーケースの正面図である。
【図３】実施例に係る支持枠構造が採用されるショーケースの縦断側面図である。
【図４】実施例に係る支持枠構造における上レール部材の配設部位を示す縦断側面図である。
【図５】実施例に係る右上部ストッパを示す概略斜視図である。
【図６】実施例に係る右上部ストッパを示す概略斜視図である。
【図７】実施例に係る支持枠構造における下レール部材の配設部位を示す縦断側面図である。
【図８】実施例に係る支持枠構造における下レール部材および右枠部材の配設部位を示す横断平面図である。
【図９】実施例に係る支持枠構造における下レール部材および右枠部材の配設部位を示す縦断正面図である。
【図１０】実施例に係る右下部ストッパを示す概略斜視図である。
【図１１】実施例に係る右下部ストッパを示す概略斜視図である。
【符号の説明】
１３箱体，１６開口部，１８前スライド扉，１９後スライド扉
２０支持枠，２１上レール部材，２２下レール部材，２４左枠部材
２５右枠部材，３５パッキン，４０右上部ストッパ（上機能部材）
４１左上部ストッパ（上機能部材），４４上遮蔽部（遮蔽部）
４５上側の隙間，４６右下部ストッパ（下機能部材）
４７左下部ストッパ（下機能部材），４９下遮蔽部（遮蔽部）
５０下側の隙間[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a support frame structure for a slide door, and more particularly, to a support frame that slidably supports a slide door that opens and closes an opening of a box, between the support frame when the slide door is closed. The present invention relates to a support frame structure that closes a generated gap.
[0002]
[Prior art]
2. Description of the Related Art Showcases for refrigerated storage of foods, beverages, and other preserved items are installed in shopping centers, convenience stores, and the like. This showcase keeps the object to be preserved stored in the storage room by forcibly circulating cold air heat exchanged by a cooler constituting a refrigeration mechanism into a storage room defined inside a heat-insulating box. It is configured as follows. A rectangular opening that opens forward is opened at the front of the box, and a support frame that slidably supports the two sliding doors is provided around the inside of the opening. . The support frame includes an upper rail member and a lower rail member disposed above and below the inner periphery of the opening, and a left frame member and a right frame member disposed on the inner periphery of the opening left and right. Two sliding doors are slidably supported between the rail members in a front-back relationship, respectively, and each sliding door is slid left or right to form a left edge or a right edge on a corresponding left frame member or a right frame member. The contact is configured to close the opening.
[0003]
Further, a packing that extends in close contact with the frame member and seals the opening is provided on a side edge that comes into contact with the corresponding frame member when the slide door is closed, and is stored when the slide door is closed. It is configured to prevent escape of cold air in the unit.
[0004]
[Problems to be solved by the invention]
The slide door of the showcase lifts the door from the lower rail member by a predetermined height, disengages the lower rail member from the lower part of the door, and then lowers the slide door obliquely toward the front. By disengaging the upper rail member from the upper part of the door, the upper rail member can be detached from the support frame. For this reason, the upper end of the packing is set lower by the height for disengaging the lower part of the sliding door from the lower rail member, and the upper rail member and the packing do not interfere with each other when the sliding door is lifted. It is configured. That is, since the upper end of the packing and the upper rail member are separated by the height, even when the sliding door is closed, the frame member and the packing are formed at the upper corners of the support frame and the sliding door. There is a gap that does not come into contact, and there is a problem that the internal cold air escapes from this gap.
[0005]
A lower frame body having a groove into which a rail provided on the lower rail member is fitted is provided at a lower portion of the slide door, and a lower end of the packing extends only to an upper end position of the lower frame body. I didn't. For this reason, even at the lower corners of the support frame and the slide door, there is a gap where the packing and the frame member do not come into contact with each other by the height of the lower frame body, and a problem that internal cold air escapes from this gap has been pointed out. You.
[0006]
[Object of the invention]
The present invention has been proposed in view of the above-mentioned problems inherent in the related art, and has been proposed to solve the problem appropriately.When the sliding door is closed, a gap is formed between the sliding door and the support frame. It is an object of the present invention to provide a support frame structure for a sliding door which is prevented from being generated and a change in an internal atmosphere can be suppressed.
[0007]
[Means for Solving the Problems]
In order to overcome the above problems and appropriately achieve the intended purpose, the sliding door support frame structure according to the present invention includes:
A support frame is composed of a pair of rail members disposed above and below the inner periphery of the opening formed in the box and a pair of frame members disposed on the left and right sides of the inner periphery, and the opening is provided between the upper and lower rail members. At least two sliding doors for opening and closing the sliding door are slidably supported, and packings disposed on one side edge of each sliding door and extending in the vertical direction are formed by sliding the sliding door in a predetermined direction to a corresponding frame. When the opening is closed by contacting the member, in the support frame structure of the sliding door that creates a gap between the packing and the upper rail member,
The gap which is provided at both ends of the upper rail member in the sliding direction of the door, and which is formed when one sliding door is opened and the other sliding door is closed when the other sliding door is closed. And a shielding portion for closing the space is provided.
[0008]
In order to overcome the above-mentioned problems and appropriately achieve the intended purpose, a support frame structure for a sliding door according to another invention of the present application is:
A support frame is composed of a pair of rail members disposed above and below the inner periphery of the opening formed in the box and a pair of frame members disposed on the left and right sides of the inner periphery, and the opening is provided between the upper and lower rail members. At least two sliding doors for opening and closing the sliding door are slidably supported, and packings disposed on one side edge of each sliding door and extending in the vertical direction are formed by sliding the sliding door in a predetermined direction to a corresponding frame. When the opening is closed by contacting the member, in the support frame structure of the sliding door that creates a gap between the packing and the lower rail member,
The gap formed when the other slide door is closed to a functional member which is disposed at both ends of the lower rail member in the door slide direction and which comes into contact with an end of the one slide door when the one slide door is opened. And a shielding portion for closing the space is provided.
[0009]
In order to overcome the above-mentioned problems and appropriately achieve the intended purpose, a support frame structure for a sliding door according to still another invention of the present application includes:
A support frame is composed of a pair of rail members disposed above and below the inner periphery of the opening formed in the box and a pair of frame members disposed on the left and right sides of the inner periphery, and the opening is provided between the upper and lower rail members. At least two sliding doors for opening and closing the sliding door are slidably supported, and packings disposed on one side edge of each sliding door and extending in the vertical direction are formed by sliding the sliding door in a predetermined direction to a corresponding frame. When the opening is closed by contacting the member, in the support frame structure of the sliding door that creates a gap between the packing and the upper and lower rail members, respectively.
The upper rail member is disposed at both ends in the door sliding direction of the upper rail member, and is formed when the other sliding door is closed to the upper functional member with which the end of the one sliding door abuts when the other sliding door is opened. Provide an upper shielding part that closes the upper gap,
The lower rail member is disposed at both ends in the door sliding direction of the lower rail member. The lower functional member contacts the end of one of the sliding doors when the one sliding door is opened, and the lower sliding member is generated when the other sliding door is closed. A lower shielding portion for closing a lower gap is provided.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, a support frame structure for a sliding door according to the present invention will be described below with reference to the accompanying drawings by taking a preferred embodiment.
[0011]
FIG. 1 shows a main part of a supporting frame structure of a sliding door according to an embodiment, and FIGS. 2 and 3 show an entire structure of a showcase employing the supporting frame structure of the embodiment. . As shown in the drawing, the showcase 10 of the embodiment has an outer box 12 made of a plurality of outer plates and a predetermined distance between the inner box 11 formed of a synthetic resin material by vacuum molding and formed into a rectangular box opening forward. A storage chamber 14 for storing the object to be preserved is defined inside a box body 13 having a heat insulating structure in which a space between the inner box 11 and the outer box 12 is filled with a heat insulating material. I have. The cool air exchanged by the cooler 15 constituting the refrigeration mechanism is forcibly circulated through the storage chamber 14 so that the stored object to be stored is kept cool.
[0012]
A support frame 20 that slidably supports two sliding doors 18 and 19 that are positioned in a front-rear relationship, which will be described later, is disposed on an inner peripheral edge of the rectangular opening 16 that is opened at the front of the box 13. Is established. The support frame 20 includes an upper rail member 21 and a lower rail member 22 arranged above and below the inner periphery of the opening 16, and a left frame member 24 and a right frame member 25 arranged on the inner periphery of the opening 16. It is composed of The upper rail member 21 and the left and right frame members 24 and 25 also serve as connecting members between the inner box 11 and the outer box 12.
[0013]
(About upper rail member)
As shown in FIG. 4, the upper rail member 21 that constitutes the support frame 20 is a long member formed by extruding a synthetic resin material in a cross-sectional shape shown in the figure, and the extending length thereof is determined by the length of the opening. The dimension is set to be substantially the same as the upper left and right width dimension in 16. The upper rail member 21 is formed with passages 26 and 27 having a rectangular cross section extending in parallel in the width direction and spaced apart in the front-rear direction, and rails vertically penetrating below the passages 26 and 27. Grooves 28 and 29 are formed parallel to the width direction. The upper end 36a of the front slide door 18 located on the front side is slidably inserted into and supported by the front rail groove 28 and the front passage 26 located on the front side, and the rear rail groove 29 and the rear end located on the rear side. The upper end 36a of the rear slide door 19 located on the rear side is slidably inserted into and supported by the passage 27. The front and rear dimensions of the rail grooves 28 and 29 are set smaller than the front and rear dimensions of the corresponding passages 26 and 27.
[0014]
(About lower rail member)
As shown in FIG. 7, the lower rail member 22 constituting the support frame 20 is a long member formed by extruding a synthetic resin material in a cross-sectional shape shown in the drawing, and the extending length thereof is set at the opening. 16 is set to be substantially the same as the width dimension of the lower part of the lower part. The lower rail member 22 has rails 30 and 31 projecting from the upper rail member 21 at positions facing the respective rail grooves 28 and 29 over substantially the entire length in the width direction. The lower end of the front slide door 18 is slidably mounted on the rail strip 30, and the lower end of the rear slide door 19 is slidably mounted on the rear rail strip 31 located on the rear side. Is done.
[0015]
(About left and right frame members)
Since the left and right frame members 24 and 25 constituting the support frame 20 are symmetrical left and right, only the configuration of one (the right side in the front) right frame member 25 will be described, and the other left frame member will be described. 24 are denoted by the same reference numerals. As shown in FIG. 8, the right frame member 25 is a long member formed by extruding a synthetic resin material in the cross-sectional shape shown in the drawing, and the extending length thereof is provided in the opening 16 by the upper and lower rail members 21. , 22 are set to be substantially the same as the length in the vertical direction in a state where the arrangement is provided. The right frame member 25 is provided with a pair of extending portions 32 and 33 extending in parallel to the opening side while being separated from each other in a forward and backward direction, and a metal plate 34 is provided between the extending portions 32 and 33. Is disposed, and a packing 35 described later disposed on each of the slide doors 18 and 19 is configured to be magnetically attracted.
[0016]
(About the sliding door)
The front and rear slide doors 18 and 19 slidably supported between the upper and lower rail members 21 and 22 in the support frame 20 have the same basic configuration. The configuration will be described, and the same members of the other rear slide door 19 will be denoted by the same reference numerals.
[0017]
As shown in FIG. 2, the front sliding door 18 is made of a transparent rectangular flat plate 36 made of glass, synthetic resin, or the like, and a synthetic resin plate disposed on the left and right outer edges of the flat plate 36. It is composed of a left frame 37 and a right frame 38, and a synthetic resin lower frame 39 disposed on the lower outer edge of the flat plate 36. The flat plate member 36 is set to a size that can close the right half of the opening 16 substantially, and the right frame member 38 (the left frame member 37 in the rear slide door 19) is connected to the corresponding right frame member 25 (the rear slide door). In 19, the opening 16 is closed by contacting the left frame member 24).
[0018]
A groove 39a is formed in the lower frame body 39 along its longitudinal direction (see FIG. 7), and the groove 39a is slidably fitted to the corresponding front rail strip 30 of the lower rail member 22. It has become. The length of the left and right frames 37, 38 in the vertical direction is set to be shorter than the dimension of the flat members 36 in the vertical direction, and the length of the flat members 36 projecting from the upper ends of the frames 37, 38 is also set. As shown in FIG. 1, the upper end portion 36a is inserted into the corresponding front rail groove 28 and front passage 26 to be slidably supported. The upper ends of the left and right frame members 37 and 38 have a height such that the groove 39a of the lower frame member 39 can be detached from the front rail strip 30 when the front slide door 18 is removed from the support frame 20. It is set at a position where it does not interfere with the upper rail member 21 when it is lifted. The height dimension of the front passage 26 is also set to allow the front slide door 18 to be lifted by the height when the front slide door 18 is removed from the support frame 20.
[0019]
On the right frame 38 (the left frame 37 in the case of the rear slide door 19), which is one side edge of the front slide door 18, a packing 35 extends over substantially the entire length in the longitudinal direction (vertical direction). When the opening 16 is closed by the front slide door 18, the packing 35 comes into close contact with the inner side surface of the right frame member 25, and prevents the escape of cool air from the storage chamber 14. Have been. As the packing 35, a mixture of rubber and a magnetic material is used. When the front slide door 18 is closed, the packing 35 is attached to the metal plate 34 disposed on the corresponding right frame member 25 by magnetic attraction. By doing so, the slide door 18 is configured to be held in the closed position and the sealing performance is improved. The upper end of the packing 35 substantially coincides with the upper end of the right frame 38 (see FIG. 1) so that the removal of the front slide door 18 from the support frame 20 is not hindered. It is set so as to substantially coincide with the upper end of the body 39 (see FIG. 9).
[0020]
(About upper stopper)
As shown in FIG. 2, upper stoppers 40 and 41 as upper functional members made of an elastic material such as rubber are attached to both ends in the longitudinal direction (door sliding direction) of the upper rail member 21 as shown in FIG. Have been. Since the basic configurations of the upper stoppers 40 and 41 located on the left and right are the same, the configuration of the upper right stopper 40 located on the front right side will be described, and the same members of the other upper left stopper 41 will be assigned the same reference numerals. Will be shown.
[0021]
As shown in FIGS. 5 and 6, the upper right stopper 40 is set to have such a size that the base 23 formed in a rectangular shape can close both passages 26 and 27 in the upper rail member 21. On the side end surface, a front locking body 42 set to a cross-sectional shape that can be inserted into the front passage 26, and a rear locking body 43 set to a cross-sectional shape that can be inserted into the rear passage 27 and the rear rail groove 29. Are formed in parallel in the front-back relationship. Then, the front locking member 42 is inserted into the corresponding front passage 26, and the rear locking member 43 is inserted into the corresponding rear passage 27 and rear rail groove 29, so that the side end surface of the base 23 is The upper right stopper 40 is positioned and mounted on the right end of the upper rail member 21 at a position where it comes into contact with the opposite end face. That is, as shown in FIG. 1, the upper right stopper 40 faces a portion where the upper rail member 21 and the right frame member 25 come into contact with each other, and the longitudinal openings of the two passages 26 and 27 and the rail grooves 28 and 29. And the upper rail member 21 and the right frame member 25 are brought into contact with no gap therebetween to prevent the occurrence of foam leakage from the contact portion. In the upper right stopper 40, the rear locking member 43 is set to be longer than the front locking member 42, and the cushioning material when the rear locking member 43 opens the rear slide door (one slide door) 19 is provided. In the upper left stopper 41, the front locking body 42 is set longer than the rear locking body 43, and the front locking body 42 connects the front sliding door (one sliding door) 18 to the front sliding door 18. It is configured to function as a buffer and a stopper when opened. However, in the upper left stopper 41, the front locking body 42 is set to have a cross-sectional shape that can be inserted into the front passage 26 and the front rail groove 28, and the rear locking body 43 is set to have a cross-sectional shape that can be inserted into the rear passage 27. Have been.
[0022]
The base 23 of the upper right stopper 40 is provided with an upper shield (shield) 44 projecting downward. As shown in FIG. 1, when the front slide door 18 is closed, the upper shielding portion 44 forms an upper gap 45 defined between the packing 35, the upper rail member 21, and the right frame member 25. It is configured to block.
[0023]
(About lower stopper)
As shown in FIG. 2, the lower rail member 22 has lower stoppers 46 and 47 as lower functional members formed of an elastic material such as rubber at both ends in the longitudinal direction (door sliding direction), respectively. It is configured to be mounted. Since the configurations of the lower stoppers 46 and 47 located on the left and right are the same, the configuration of the lower right stopper 46 located on the front right side will be described, and the same members of the other lower left stopper 47 will be denoted by the same reference numerals. It shall be.
[0024]
As shown in FIGS. 10 and 11, the lower right stopper 46 is fitted to the rear rail 31 of the lower rail member 22 on the lower surface on one end side in the longitudinal direction of the main body 48 formed in a substantially rectangular shape. A possible fitting groove 48a is formed, and by fitting the fitting groove 48a to the rear rail strip 31, the lower right stopper 46 is mounted on the right end of the lower rail member 22. Then, in this mounted state, the other end of the main body 48 opposite to the end where the fitting groove 48a is formed is formed on the inner side surface (metal plate 34) of the right frame member 25 as shown in FIG. Set to abut. At the other end of the main body portion 48, a lower shielding portion (shielding portion) protruding toward the front rail 30 on the side of the rail opposite to the rail on which the lower stopper is mounted, that is, at the lower right stopper 46. 49 are provided. When the lower shield 49 closes the front slide door 18 as shown in FIG. 8, a lower gap defined between the packing 35, the lower rail member 22, and the right frame member 25 is formed. It is configured to block 50. The lower left stopper 47 is attached to the left end of the lower rail member 22 with the other end abutting on the inner side surface of the left frame member 24 by fitting the fitting groove 48 a into the front rail strip 30. The lower gap 49 formed between the packing 35, the lower rail member 22, and the left frame member 24 is closed by a lower shielding portion (shielding portion) 49 protruding toward the rear rail 31. It is configured.
[0025]
When the rear slide door (one slide door) 19 is opened, the main body 48 of the lower right stopper 46 comes into contact with the right end of the door 19 and also functions as a cushioning material and a stopper. A ridge extending in the longitudinal direction on the lower surface of the main body 48 of the lower right stopper 46 on which the fitting groove 48a is formed, on the side opposite to the side where the lower shield 49 protrudes, and the other end of the main body 48. The ridges extending in the vertical direction on the side opposite to the side where the lower shielding portion 49 protrudes, and the ridges extending back and forth on both the upper and lower sides of the lower shielding portion 49 are inclined surfaces 51 that are beveled obliquely. It has been. When the lower right stopper 46 is mounted on the lower rail member 22, the inclined surface 51 located below the lower shield 49 faces the inner edge of the joint between the lower rail member 22 and the right frame member 25. Thus, a caulking (not shown) for defining a required gap and filling a joint portion between the two members 22 and 25 does not adhere to the lower right stopper 46. Further, the other inclined surface 51 of the lower right stopper 46 includes, when the stopper 46 is attached to the lower rail member 22, the inner extending base edge of the rear extending portion 33 of the right frame member 25, The lower rail member 22 defines gaps in opposition to the inner base edge of the rear wall 52 erected on the rear side of the rear rail strip 31, and condensation formed on the lower rail member 22 through each of the gaps. It is configured to discharge water and the like. In the lower left stopper 47, in a state where the stopper 47 is attached to the lower rail member 22, a joining inner edge portion between the lower rail member 22 and the left frame member 24, a front extension 32 of the left frame member 24. The inclined surfaces 51 face the inner extending base end edge of the front rail 53 and the inner standing base end edge of the front wall 53 erected on the front side of the front rail strip 30 in the lower rail member 22, respectively. The condensed water and the like are discharged through these gaps.
[0026]
Operation of the embodiment
Next, the operation of the sliding door support frame structure according to the above-described embodiment will be described.
When forming the box 13, the upper and lower rail members 21 and 22 and the left and right frame members 24 and 25 are attached to the inner box 11 at predetermined positions, and a predetermined distance is provided outside the inner box 11. Then, the outer box 12 is attached. The upper stoppers 40 and 41 are mounted on both left and right ends of the upper rail member 21 in advance, respectively, and the joints between the upper rail member 21 and the left and right frame members 24 and 25 are brought into contact with no gap. In this state, the space defined between the two boxes 11 and 12 is filled with a heat insulating material and foamed to manufacture the box body 13 having a heat insulating structure. In this case, since the joints between the upper rail member 21 and the left and right frame members 24 and 25 abut without gaps by the upper stoppers 40 and 41, it is possible to prevent the occurrence of foam leakage from the portions. .
[0027]
After attaching the lower stoppers 46 and 47 to both left and right ends of the lower rail member 22, respectively, the front and rear slide doors 18 and 19 are attached to the support frame 20. In each of the sliding doors 18 and 19, the upper ends of the left and right frames 37 and 38 and the packing 35 are separated downward from the upper rail member 21 by a predetermined length, and each sliding door 18 and 19 is separated from the lower rail member 22. After lifting up by a predetermined height to release the grooves 39a, 39a of the lower frame members 39, 39 from the rail strips 30, 31 of the lower rail member 22, the sliding doors 18, 19 are tilted obliquely toward the front side. The sliding doors 18, 19 can be removed from the support frame 20 by lowering and pulling out the upper ends 36a, 36a of the flat plates 36, 36 from the passages 26, 27 and the rail grooves 28, 29 of the upper rail member 21. it can. When the lower stoppers 46 and 47 are mounted on the lower rail member 22, a gap is formed between the joint inner edges of the lower rail member 22 and the left and right frame members 24 and 25 and the inclined surface 51. Therefore (see FIG. 9), the caulking that seals the relevant portion does not adhere to the stoppers 46 and 47, and the caulking does not prevent the lower stoppers 46 and 47 from being mounted at proper positions.
[0028]
When sliding to the right to close the opening 16 by, for example, the front slide door 18 slidably attached to the support frame 20 as described above, the front slide door 18 is disposed on the right frame 38 of the front slide door 18. The packing 35 is magnetically attracted to the metal plate 34 of the right frame member 25, and the front slide door 18 is held at the closed position. Further, since the packing 35 is in close contact with the right frame member 25, there is no gap between the two 25, 35, and escape of cool air from the storage chamber 14 is prevented. In this case, the packing 35 is not disposed over the entire length of the front sliding door 18 in the vertical direction, and the gap between the upper and lower parts of the front sliding door 18 where the packing 35 is not disposed and the support frame 20 is provided. Are formed with gaps 45 and 50, respectively.
[0029]
In the support frame 20 of the embodiment, the respective shielding portions 44 and 49 of the upper right stopper 40 disposed on the upper rail member 21 and the lower right stopper 46 disposed on the lower rail member 22 correspond to the corresponding gaps 45 and 49, respectively. It is located so as to block 50 (see FIGS. 1 and 9). Accordingly, there is no gap between the front slide door 18 and the support frame 20 over substantially the entire length of the door 18 in the vertical direction, and the escape of cool air from the storage chamber 14 is suitably prevented. be able to. When the rear slide door 19 is opened, the upper right stopper 40 and the lower right stopper 46 come into contact with the right end of the rear slide door 19 to function as a cushioning material and a stopper. Is prevented from being damaged. When the upper end 36a of the flat plate 36 is directly supported on the upper rail member 21 as in the embodiment, when the front slide door 18 is closed, the upper end 36a is moved to the upper right. Although the stopper 40 is in contact with the stopper 40, even at this time, since the stopper 40 is made of an elastic material, the flat plate 36 is not damaged. The operation when the opening 16 is closed by the slide door 19 after the slide door 19 is slidably mounted on the support frame 20 and the operation when the front slide door 18 is opened are the same as those described above.
[0030]
Since the shielding portions 44, 49 for closing the upper and lower gaps 45, 50 are provided on the upper and lower stoppers 40, 41, 46, 47 mounted on the upper and lower rail members 21, 22, the gaps 45, 50 are removed. It is not necessary to attach a separate member for closing using a screw or the like, and the number of parts and the number of assembling steps do not increase. Further, since the upper stoppers 40 and 41 are fitted into the upper rail member 21, they do not easily fall off.
[0031]
Since the lower stoppers 46 and 47 have the same configuration on the left and right, the left and right are not mounted upside down, the processing cost is reduced, and the parts management is simplified. In addition, since the lower stoppers 46 and 47 are merely inserted into the lower rail member 22, they can be easily removed for cleaning, and can be kept hygienic at all times. Further, by forming the ridges of the lower stoppers 46 and 47 as the inclined surfaces 51, gaps are defined in portions opposed to the inclined surfaces 51 when the lower stoppers 46 and 47 are attached to the lower rail member 22, and the lower rails are removed from these gaps. Condensed water and the like accumulated in the member 22 can be discharged.
[0032]
In the embodiment, when the opening is closed by sliding the sliding door in a predetermined direction and contacting the corresponding frame member, a gap is formed between the packing and the upper and lower rail members, respectively. Although described in the case, a configuration in which a gap is formed only in one of the upper and lower portions may be provided, and a functional member having a shielding portion is mounted on a corresponding one of the upper and lower rail members. I just need. In the embodiment, the configuration in which the storage chamber defined inside the box is cooled has been described. However, the storage chamber may be heated.
[0033]
【The invention's effect】
As described above, in the sliding door support frame structure according to the first aspect of the present invention, when the opening is closed by the sliding door, the gap generated between the packing and the upper rail member is removed by using one sliding door. Since it is configured so as to be closed by the shielding portion provided on the functional member functioning as a stopper when opened, it is possible to prevent the internal atmosphere of the box from changing. Further, in the sliding door support frame structure according to the second aspect of the present invention, when the opening is closed by the sliding door, a gap generated between the packing and the lower rail member is reduced by opening one sliding door. Since it is configured so as to be closed by the shielding portion provided on the functional member functioning as the stopper, it is possible to prevent the internal atmosphere of the box from changing.
[0034]
Furthermore, in the sliding door support frame structure according to the third aspect of the present invention, when the opening is closed by the sliding door, each gap generated between the packing and the upper and lower rail members is removed by using one sliding door. Since the upper and lower functional members functioning as stoppers when opened are configured to be closed by upper and lower shielding portions, respectively, the opening can be sealed over substantially the entire length of the sliding door in the vertical direction, and the box body can be closed. A change in the internal atmosphere can be suitably prevented.
[Brief description of the drawings]
FIG. 1 is a vertical cross-sectional front view showing an arrangement portion of an upper rail member and a right frame member in a slide door support frame structure according to an embodiment.
FIG. 2 is a front view of a showcase employing the support frame structure according to the embodiment.
FIG. 3 is a vertical side view of a showcase in which the support frame structure according to the embodiment is adopted.
FIG. 4 is a vertical cross-sectional side view showing an arrangement portion of an upper rail member in the support frame structure according to the embodiment.
FIG. 5 is a schematic perspective view showing an upper right stopper according to the embodiment.
FIG. 6 is a schematic perspective view showing an upper right stopper according to the embodiment.
FIG. 7 is a longitudinal sectional side view showing an arrangement portion of a lower rail member in the support frame structure according to the embodiment.
FIG. 8 is a cross-sectional plan view showing a portion where the lower rail member and the right frame member are provided in the support frame structure according to the embodiment.
FIG. 9 is a vertical cross-sectional front view showing a disposition portion of a lower rail member and a right frame member in the support frame structure according to the embodiment.
FIG. 10 is a schematic perspective view showing a lower right stopper according to the embodiment.
FIG. 11 is a schematic perspective view showing a lower right stopper according to the embodiment.
[Explanation of symbols]
13 boxes, 16 openings, 18 front sliding door, 19 rear sliding door
20 support frame, 21 upper rail member, 22 lower rail member, 24 left frame member
25 right frame member, 35 packing, 40 upper right stopper (upper functional member)
41 upper left stopper (upper functional member), 44 upper shielding part (shielding part)
45 upper gap, 46 lower right stopper (lower functional member)
47 Lower left stopper (lower functional member), 49 Lower shield part (shield part)
50 gap below

Claims

A pair of rail members (21, 22) arranged above and below the inner periphery of the opening (16) opened in the box (13) and a pair of frame members (24, 25) arranged on the inner periphery left and right. , A support frame (20) is formed, and at least two slide doors (18, 19) for opening and closing the opening (16) are slidably supported between upper and lower rail members (21, 22). A packing (35) disposed on one side edge of the door (18, 19) and extending in the up-down direction is moved by sliding the sliding door (18, 19) in a predetermined direction to a corresponding frame member (24, 25). ), When the opening (16) is closed by contacting the opening (16), a gap (45) is formed between the packing (35) and the upper rail member (21).
A functional member (40) which is disposed at both ends of the upper rail member (21) in the door sliding direction and to which one end of the sliding door (18, 19) comes into contact when one of the sliding doors (18, 19) is opened. , 41) provided with a shielding portion (44) for closing the gap (45) generated when the other sliding door (19, 18) is closed.

A pair of rail members (21, 22) arranged above and below the inner periphery of the opening (16) opened in the box (13) and a pair of frame members (24, 25) arranged on the inner periphery left and right. , A support frame (20) is formed, and at least two slide doors (18, 19) for opening and closing the opening (16) are slidably supported between upper and lower rail members (21, 22). A packing (35) disposed on one side edge of the door (18, 19) and extending in the up-down direction is moved by sliding the sliding door (18, 19) in a predetermined direction to a corresponding frame member (24, 25). ), When the opening (16) is closed by contacting the opening (16), a gap (50) is formed between the packing (35) and the lower rail member (22).
A functional member (46) which is disposed at both ends of the lower rail member (22) in the door sliding direction and which comes into contact with one end of the sliding door (18, 19) when one of the sliding doors (18, 19) is opened. , 47) provided with a shield (49) for closing the gap (50) generated when the other slide door (19, 18) is closed.

A pair of rail members (21, 22) arranged above and below the inner periphery of the opening (16) opened in the box (13) and a pair of frame members (24, 25) arranged on the inner periphery left and right. , A support frame (20) is formed, and at least two slide doors (18, 19) for opening and closing the opening (16) are slidably supported between upper and lower rail members (21, 22). A packing (35) disposed on one side edge of the door (18, 19) and extending in the up-down direction is moved by sliding the sliding door (18, 19) in a predetermined direction to a corresponding frame member (24, 25). ) When the opening (16) is closed by contact with the sliding door, a gap (45, 50) is formed between the packing (35) and the upper and lower rail members (21, 22). In the frame structure,
The upper functional member () is disposed at both ends of the upper rail member (21) in the door sliding direction, and an end of the sliding door (18, 19) comes into contact when one of the sliding doors (18, 19) is opened. 40, 41) are provided with an upper shielding portion (44) for closing the upper gap (45) generated when the other sliding door (19, 18) is closed,
A lower functional member (disposed at both ends of the lower rail member (22) in the sliding direction of the door, with which one end of the sliding door (18, 19) comes into contact when one of the sliding doors (18, 19) is opened. 46, 47) provided with a lower shielding portion (49) for closing the lower gap (50) generated when the other sliding door (19, 18) is closed. Frame structure.