JP3948383B2

JP3948383B2 - Air passage opening and closing device

Info

Publication number: JP3948383B2
Application number: JP2002289806A
Authority: JP
Inventors: 進藤　　寛英; 上村　　幸男; 伊藤　　功治
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2002-10-02
Filing date: 2002-10-02
Publication date: 2007-07-25
Anticipated expiration: 2022-10-02
Also published as: JP2004122930A

Description

【０００１】
【発明の属する技術分野】
本発明は、膜状部材を有するスライドドアにより空気通路を開閉する空気通路開閉装置に関するもので、車両用空調装置に用いて好適なものである。
【０００２】
【従来の技術】
従来、車両用空調装置では、膜状部材の移動によって空気通路の切替を行う空気通路開閉装置が種々提案されている。本出願人においては、膜状部材の巻き取り機構を不要にして、構成を簡素化した空気通路開閉装置を提案している（特許文献１参照）。この従来技術では、空気通路を形成するケース内にガイド溝を設け、このガイド溝にて膜状部材の幅方向の両端部をガイドするとともに、膜状部材に駆動軸の駆動ギヤを噛み合わせている。
【０００３】
これにより、駆動軸の回転により膜状部材をガイド溝に沿って往復動させ、膜状部材の移動によりケースの空気通路を開閉するようにしている。具体的には、膜状部材に空気流通用の開口部を設け、膜状部材の移動により膜状部材の開口部とケース側の空気通路開口部との連通面積が変化して空気通路開口部を開閉するようになっている。
【０００４】
ところが、上記特許文献１のものを実際に試作検討してみると、膜状部材に空気流通用の開口部を設けているため、この開口部周辺部で膜状部材の剛性が低下する。その結果、駆動軸の駆動ギヤからの操作力が膜状部材に加わると、開口部周辺部で膜状部材の変形が発生して、膜状部材をスムースに押し出すことができないという事態が生じることが分かった。
【０００５】
そこで、特願２００１−３８４８２７号において、膜状部材のうち開口部の周辺部の剛性を高めるようにしたスライドドア構造を提案している。具体的には、後述の図２に示すように、空気が流通可能な開口部１４４を有する枠体状の形状からなる剛体の支持部材１４３を備え、この支持部材１４３の移動方向の端部に膜状部材１４１を結合し、支持部材１４３にドア操作力を加えて、支持部材１４３を膜状部材１４１と一体に移動させるスライドドア構造を提案している。
【０００６】
次に、この先願における支持部材１４３のケース側へのガイド構造を図２、図１０により説明すると、図２に示す支持部材１４３および膜状部材１４１の移動方向ａは図１０では紙面垂直方向であり、この移動方向ａと直交する方向へ突出するガイドピン１４８を支持部材１４３に一体に形成している。このガイドピン１４８をケース１１に形成したガイド溝２３内に挿入し、このガイド溝２３によりガイドピン１４８をケース１１側にガイドし、支持するようにしている。
【０００７】
また、膜状部材１４１のうち、支持部材１４３に結合される端部付近と、支持部材１４３との間に弾性部材１４３ｊを介在して、弾性部材１４３ｊの弾性力により膜状部材１４１の端部付近をケース１１側のガイド壁面２３ｃに押し付けるようにしている。このガイド壁面２３ｃは、膜状部材１４１により空気通路１６の開口部１６ａを閉塞するためのシール面の役割を兼ねる。
【０００８】
【特許文献１】
特開２００２−７９８１９号公報
【０００９】
【発明が解決しようとする課題】
ところが、上記先願のものを実際に試作検討してみると、ドア操作力が増大するという問題が生じることが分かった。すなわち、上記先願では、ガイドピン１４８のための専用のガイド溝２３をケース１１側に形成しているので、ガイド溝２３の対向する両ガイド壁面２３ａ、２３ｂの間にてガイドピン１４８を直接ガイドする構成になっている。
【００１０】
このため、ガイド溝２３の溝幅寸法Ｗ’、ガイドピン１４８の径寸法の製造上のバラツキ、更には、支持部材１４３の駆動ギヤ機構の寸法バラツキ（具体的には、支持部材１４３のギヤ１４９ａ、１４９ｂと駆動ギヤ２６（図１）の中心軸との間隔の寸法バラツキ）が生じると、ガイドピン１４８がガイド壁２３ａ、２３ｂに強く接触して、ガイドピン１４８とガイド溝２３間の摺動抵抗が増大し、ドア操作力を増大するという問題が生じる。
【００１１】
なお、摺動抵抗低減のため、ガイド溝２３の溝幅寸法Ｗ’を増大すると、ガイドピン１４８とガイド溝２３とのガタが大きくなって、スライドドアの振動音が発生するので、ガイド溝２３の溝幅寸法Ｗ’は単純に増大することはできない。
【００１２】
本発明は上記点に鑑みて、膜状部材を有するスライドドアにより空気通路を開閉する空気通路開閉装置において、膜状部材を支持する支持部材のガイドピンとガイド溝間の摺動抵抗を低減することを目的とする。
【００１３】
【課題を解決するための手段】
上記目的を達成するため、請求項１に記載の発明では、空気通路の開口部（１５ｂ、１６ａ）を形成するケース（１１）と、ケース（１１）内に移動可能に配置され、開口部（１５ｂ、１６ａ）を開閉するスライドドア（１４）とを備え、スライドドア（１４）は、可撓性を有する膜状部材（１４１）と、膜状部材（１４１）を支持する支持部材（１４３）と、膜状部材（１４１）と支持部材（１４３）との間に介在された弾性部材（１４３ｊ）とを有しており、
支持部材（１４３）にスライドドア（１４）の移動方向と直交する方向に突出するガイドピン（１４８）を備え、
一方、ケース（１１）の内壁面にスライドドア（１４）の移動方向に沿ったガイド溝（２３）を備え、
ガイド溝（２３）は、互いに対向する２つのガイド壁（２３ａ、２３ｂ）により所定溝幅を有する断面凹状の単一の溝形状に形成され、
ガイド溝（２３）の単一の溝形状内に膜状部材（１４１）の幅方向の端部およびガイドピン（１４８）を挿入するとともに、
ガイド溝（２３）のガイド壁（２３ａ、２３ｂ）と膜状部材（１４１）の幅方向の端部およびガイドピン（１４８）との間に弾性部材（１４３ｊ）の弾性力が作用した状態で、膜状部材（１４１）の幅方向の端部およびガイドピン（１４８）がガイド溝（２３）に対して摺動することを特徴とする。
【００１４】
これにより、ガイド溝（２３）の溝幅寸法、ガイドピン（１４８）の径寸法の製造上のバラツキ、更には、支持部材（１４３）の駆動機構の寸法バラツキが生じても、これらの各種の寸法バラツキを弾性部材（１４３ｊ）の弾性変形にて吸収することができる。
【００１５】
そのため、上記寸法バラツキが原因となってガイドピン（１４８）がガイド溝（２３）のガイド壁（２３ａ、２３ｂ）に強く接触するという不具合を解消できる。その結果、ガイドピン（１４８）とガイド溝（２３）間の摺動抵抗を低減してドア操作力を低減できる。
【００１６】
しかも、ガイド溝（２３）と膜状部材（１４１）の幅方向の端部およびガイドピン（１４８）との間に弾性部材（１４３ｊ）の弾性力が作用した状態で、膜状部材（１４１）の幅方向の端部およびガイドピン（１４８）がガイド溝（２３）に対して摺動する構成になっているから、弾性部材（１４３ｊ）の配置スペース分だけガイド溝（２３）の溝幅寸法を拡大できるので、ガイド溝（２３）の成形が容易になるとともに、ガイド溝（２３）から塵埃が落下しやすくなって、ガイド溝（２３）内に塵埃が溜まりにくくなる。
【００１７】
更に、ガイド溝（２３）の溝幅寸法を拡大しても、膜状部材（１４１）の幅方向の端部およびガイドピン（１４８）を弾性部材（１４３ｊ）の弾性力によりガイド溝（２３）のガイド壁（２３ａ、２３ｂ）に押し付けることができるので、スライドドアのがたつき振動音を防止できる。なお、膜状部材（１４１）の幅方向とはスライドドア（１４）の移動方向と直交する方向を言う。
【００１８】
請求項２に記載の発明では、請求項１において、ガイド溝（２３）の２つのガイド壁（２３ａ、２３ｂ）のうち、風上側のガイド壁（２３ａ）をガイドピン（１４８）が摺動し、風下側のガイド壁（２３ｂ）を膜状部材（１４１）の幅方向の端部が摺動することを特徴とする。
【００１９】
これにより、膜状部材（１４１）を送風空気の風圧を利用して風下側のガイド壁（２３ｂ）に圧着させることができ、膜状部材（１４１）によるシール性を良好に発揮できる。
【００２０】
請求項３に記載の発明のように、請求項２において、風下側のガイド壁（２３ｂ）は、具体的には、ガイド溝（２３）の底部から開口部（１５ｂ、１６ａ）の端面に至る部位まで直線的に延びるように形成すればよい。
【００２１】
請求項４に記載の発明のように、請求項１ないし３のいずれか１つにおいて、弾性部材（１４３ｊ）は膜状部材（１４１）と支持部材（１４３）との間にてスライドドア（１４）の移動方向と直交する方向に細長く延びる形状であり、弾性部材（１４３ｊ）を開口部（１５ｂ、１６ａ）の開口領域に対応する部位とガイド溝（２３）の内側部位の両方にわたって配置する構成とすることができる。
【００２２】
請求項５に記載の発明のように、請求項１ないし３のいずれか１つにおいて、弾性部材（１４３ｊ）は膜状部材（１４１）と支持部材（１４３）との間にてスライドドア（１４）の移動方向と直交する方向に細長く延びる形状であり、
前記開口部（１５ｂ、１６ａ）の開口領域には、膜状部材（１４１）の風下側に位置して膜状部材（１４１）を支持することにより、膜状部材（１４１）が風下側に湾曲することを防止する格子（２０）が備えられており、
弾性部材（１４３ｊ）を開口部（１５ｂ、１６ａ）の開口領域に対応する部位のみに配置してもよい。
【００２３】
請求項６に記載の発明のように、請求項１ないし５のいずれか１つにおいて、弾性部材（１４３ｊ）は、支持部材（１４３）とは別体の独立の部材で構成できる。
【００２４】
請求項７に記載の発明のように、請求項１ないし５のいずれか１つにおいて、支持部材（１４３）が弾性を有する樹脂により成形され、弾性部材（１４３ｊ）を支持部材（１４３）と一体成形した樹脂ばね部材により構成してもよい。
【００２５】
請求項８に記載の発明のように、請求項１ないし７のいずれか１つにおいて、支持部材（１４３）は、空気が流通可能な開口部（１４４）を有する枠体状の形状からなり、支持部材（１４３）の移動方向の端部に膜状部材（１４１）を結合するようにしてよい。
【００２６】
なお、上記各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示すものである。
【００２７】
【発明の実施の形態】
（第１実施形態）
図１は本発明の第１実施形態を適用した車両用空調装置における室内ユニット部のうち、熱交換器部を収容している空調ユニット１０の要部を示す。この空調ユニット１０は車室内前部の計器盤（図示せず）内側において、車両左右（幅）方向の略中央部に配置される。図１の上下前後の矢印は車両搭載状態における方向を示す。車両用空調装置の室内ユニット部は、上記略中央部の空調ユニット１０と、計器盤内側において助手席側にオフセット配置される図示しない送風機ユニットとに大別される。
【００２８】
送風機ユニットは、外気（車室外空気）または内気（車室内空気）を切替導入する内外気切替箱と、この内外気切替箱に導入された空気を送風する遠心式送風機とを備えている。この送風機ユニットの送風空気は、空調ユニット１０のケース１１内のうち、最下部の空気流入空間１２に流入するようになっている。
【００２９】
ケース１１は、ポリプロピレンのような弾性を有し、機械的強度も高い樹脂にて成形されている。ケース１１は、成形上の型抜きの都合、ケース内への空調機器の組付上の理由等から具体的には複数の分割ケースに分割して成形した後に、この複数の分割ケースを一体に締結する構成になっている。
【００３０】
空調ユニット１０のケース１１内において空気流入空間１２の上方には冷房用熱交換器をなす蒸発器１３が小さな傾斜角度でもって略水平方向に配置されている。従って、送風機ユニットの送風空気は空気流入空間１２に流入した後、この空間１２から蒸発器１３を下方から上方へと通過する。蒸発器１３は周知のように車両空調用冷凍サイクルの膨張弁等の減圧装置により減圧された低圧冷媒が流入し、この低圧冷媒が送風空気から吸熱して蒸発するようになっている。ケース１１の底面の最下部には蒸発器１３から落下する凝縮水を排出する排水口１１ａが形成されている。
【００３１】
そして、蒸発器１３の上方（空気流れ下流側）には膜状部材を有するエアミックス用スライドドア１４が配置され、さらに、このエアミックス用スライドドア１４の上方（空気流れ下流側）に温水式ヒータコア１５が配置されている。このヒータコア１５は周知のように車両エンジンの温水（冷却水）を熱源として空気を加熱する暖房用熱交換器である。
【００３２】
このヒータコア１５も略水平方向に配置されているが、ヒータコア１５はケース１１内の通路断面積より小さくして、ケース１１内のうち車両前方側に偏って配置してある。これにより、ヒータコア１５の車両後方側（乗員座席寄りの部位）に、ヒータコア１５をバイパスして空気が流れるバイパス通路１６を形成している。
【００３３】
エアミックス用スライドドア１４は、蒸発器１３とヒータコア１５との間にて車両前後方向ａに移動（往復動）して、ヒータコア１５の通風路（温風通路）１５ａの開口部１５ｂとバイパス通路（冷風通路）１６の開口部１６ａを開閉する。これにより、ヒータコア通風路１５ａを通過する温風とバイパス通路１６を通過する冷風との風量割合を調整して、車室内への吹出空気温度を調整することができる。従って、エアミックス用スライドドア１４により車室内への吹出空気の温度調整手段が構成される。
【００３４】
ヒータコア１５を通過した温風は温風ガイド壁１７により車両後方側へガイドされて空気混合部１８に向かう。この空気混合部１８にてバイパス通路１６からの冷風とヒータコア通過後の温風が混合して所望温度となる。
【００３５】
ケース１１の上面部（空気下流端部）には、吹出開口部として図示しないフェイス開口部、デフロスタ開口部およびフット開口部が配置され、更に、これらの複数の吹出開口部を図示しない吹出モードドアにより切替開閉するようになっている。従って、空気混合部１８にて所望温度となった空気が吹出モードドアにより選択された所定の吹出開口部を通過して車室内へ吹き出すようになっている。
【００３６】
ところで、上記したエアミックス用スライドドア１４は、図１に示す曲折した経路に沿って変形し得るように可撓性を有する膜状部材（樹脂製フィルム材）１４１を用いて構成されている。この膜状部材１４１の具体的材質としては可撓性を有し、かつ、摩擦抵抗が小さい樹脂材料であるＰＥＴ（ポリエチレンテレフタレート）フィルムが好適である。
【００３７】
なお、膜状部材１４１の板厚は例えば、１００〜２５０μｍ程度の微小寸法である。このような範囲にフィルムの板厚を設定することにより、スライドドア１４の送り出しに必要な剛性を確保しつつ、往復動経路の曲げ部ではその曲げ形状に沿ってフィルムが容易に変形して、曲げ力による著しい操作力の増大を抑制する。
【００３８】
次に、エアミックス用スライドドア１４を図２〜図５に基づいて詳述する。図２はエアミックス用スライドドア１４単体の具体的構成を例示するものである。図３は図２のエアミックス用スライドドア１４を図１のようにケース１１内に組み付けた状態における、図２のＡ−Ａ断面図である。図４は図２のＢ−Ｂ断面図であり、図５は図４のＣ矢視図である。
【００３９】
図２に示すように、ドア１４の移動方向ａの中央部領域に空気が流通可能な枠体状の形状からなる支持部材１４３を配置し、この支持部材１４３のドア移動方向ａへの前後両側の端部にそれぞれ膜状部材１４１、１４１を結合している。
【００４０】
支持部材１４３はポリプロピレン等の樹脂成形品からなる剛体であり、ドア移動方向ａと直交方向に延びる枠部１４３ａ、１４３ｂが所定間隔で平行に配置され、この枠部１４３ａ、１４３ｂの長手方向の両端部付近をドア移動方向ａに円弧状に延びる枠部１４３ｃ、１４３ｄにより結合している。従って、これらの枠部１４３ａ〜１４３ｄにより長方形の枠体形状を構成している。
【００４１】
また、ドア移動方向ａ前後の枠部１４３ａ、１４３ｂの長手方向の中間部位にはドア移動方向ａに延びる２本の補強リブ１４３ｅ、１４３ｆを配置している。これらの枠部１４３ａ〜１４３ｄおよび補強リブ１４３ｅ、１４３ｆは樹脂により一体成形されている。
【００４２】
上記枠部１４３ａ〜１４３ｄの内側は空気が流通可能な開口部１４４であり、この開口部１４４は補強リブ１４３ｅ、１４３ｆにより３つの部分に分割形成されている。ドア移動方向ａに延びる左右の枠部１４３ｃ、１４３ｄの下面部にはそれぞれギヤ１４９ａ、１４９ｂが形成してある。このギヤ１４９ａ、１４９ｂは左右の枠部１４３ｃ、１４３ｄの円弧形状に沿って円弧形状に延びるよう形成されている。
【００４３】
ドア移動方向ａと直交方向に延びる前後の枠部１４３ａ、１４３ｂにおいて長手方向の両端部に円柱状のガイドピン１４８を形成している。このガイドピン１４８は支持部材１４３から左右両側（ドア移動方向ａと直交方向）へ突き出すように合計４箇所に形成され、図１、図３に示すケース側のガイド溝２３内に摺動可能に嵌合する。このガイド溝２３の詳細は後述する。
【００４４】
また、枠部１４３ａ、１４３ｂにはその長手方向に沿って複数（図２の例では６個）の係止ピン１４３ｇが所定間隔にて一体成形されている。この係止ピン１４３ｇは枠部１４３ａ、１４３ｂにおいて開口部１４４に面する部位に配置されている。そして、この係止ピン１４３ｇは図４に示すように、円柱状の軸部１４３ｈを有し、この軸部１４３ｈの先端部に茸状に拡大された拡大頭部１４３ｉを一体成形した形状である。
【００４５】
一方、膜状部材１４１、１４１の端部付近には図５に示すように長穴形状の係止穴部１４１ｃを形成している。この係止穴部１４１ｃの長穴形状の長軸方向は、膜状部材１４１、１４１の組付状態において上下方向、すなわち、空気流れ方向に向いている。また、この係止穴部１４１ｃから長穴形状の左右両側（短軸方向）へ延びるスリット１４１ｄが形成してある。
【００４６】
係止穴部１４１ｃの長穴形状の長軸方向の径寸法は係止ピン１４３ｇの拡大頭部１４３ｉの径寸法より大きくしてあるが、係止穴部１４１ｃの長穴形状の短軸方向の径寸法は係止ピン１４３ｇの拡大頭部１４３ｉの径寸法より小さく、かつ、係止ピン１４３ｇの軸部１４３ｈの径寸法と同等以上に設計してある。
【００４７】
これにより、膜状部材１４１、１４１の係止穴部１４１ｃを係止ピン１４３ｇに嵌め込むときは、スリット１４１ｄを広げることにより係止ピン１４３ｇの拡大頭部１４３ｉを係止穴部１４１ｃに挿入できる。そして、拡大頭部１４３ｉが係止穴部１４１ｃを通過すると、スリット１４１ｄが膜状部材１４１、１４１の弾性復元力により閉じるので、拡大頭部１４３ｉを係止穴部１４１ｃに確実に係止でき、枠体形状の支持部材１４３に膜状部材１４１、１４１を結合できる。
【００４８】
図４に示すように支持部材１４３の枠部１４３ａに弾性部材１４３ｊの支持面１４３ｋを一体に成形し、この支持面１４３ｋ上に弾性部材１４３ｊを接着等により固定している。この弾性部材１４３ｊは自身の弾性力により膜状部材１４１をケース１１側のシール面に押圧して、膜状部材１４１のシール効果を向上させるものである。弾性部材１４３ｊは具体的には、エーテル系ウレタンフォーム等の弾性材により構成される。
【００４９】
なお、図４では枠部１４３ａ側の構成のみを示しているが、他の枠部１４３ｂ側においても同様に、支持面１４３ｋおよび弾性部材１４３ｊを設けている。
【００５０】
次に、上記したガイド溝２３をより具体的に説明すると、ガイド溝２３は、図１に示すようにケース１１内部においてヒータコア通風路１５ａの開口部１５ｂおよびバイパス通路１６の開口部１６ａの直ぐ下方（空気流れ上流側）に位置している。そして、ガイド溝２３は支持部材１４３の左右の枠部１４３ｃ、１４３ｄの円弧状に沿って車両前後方向（ドア移動方向ａ）に円弧状に延びるように形成されている。
【００５１】
ガイド溝２３は図３に示すように、ケース１１の内側へ向かって開口する所定溝幅Ｗを有する断面凹状に形成される。より具体的には、ガイド溝２３は所定幅Ｗで対向するガイド壁２３ａ、２３ｂを有し、この両ガイド壁２３ａ、２３ｂはケース１１の内壁面において車両左右方向の両側の壁面部にドア移動方向ａと平行に延びるように一体成形される。なお、図３ではケース１１の車両左側の壁面部に形成されるガイド溝２３のみ図示している。
【００５２】
ガイド溝２３は、ガイドピン１４８と膜状部材１４１の両方をガイドするように構成されている。このため、ガイド溝２３の両ガイド壁２３ａ、２３ｂのうち、上側（風下側）のガイド壁２３ｂは、ガイド溝２３の底部側（図３の左端側）の部位から開口部１６ａの開口端面（縁部）に至るまで直線状に延びるように形成されている。
【００５３】
そして、スライドドア１４において、空気流れ方向の風上側から風下側へ向かって、ガイドピン１４８（支持部材１４３）→弾性部材１４３ｊ→膜状部材１４１の順に積層配置されるので、膜状部材１４１の幅方向（ドア移動方向ａと直交方向）の両端部とガイドピン１４８をガイド溝２３内に挿入すると、膜状部材１４１の挿入部分は上側（風下側）のガイド壁２３ｂによりガイドされ、ガイドピン１４８は下側（風上側）のガイド壁２３ａによりガイドされる。
【００５４】
ここで、ガイド溝２３の所定溝幅Ｗは、図３に示すドア組付状態において、弾性部材１４３ｊが弾性的に圧縮されて、弾性部材１４３ｊの板厚が組付前の自由状態の板厚（例えば、５ｍｍ程度）から所定量（例えば、１ｍｍ程度）縮小するように設定してある。従って、弾性部材１４３ｊの弾性力により膜状部材１４１は上側（風下側）のガイド壁２３ｂ、および開口部１６ａの周縁部のケース側シール面に押し付けられる。
【００５５】
図３において、開口部１６ａ内に位置する格子２０は、膜状部材１４１の移動方向（車両前後方向）ａと平行な平行格子であり、この平行格子２０は開口部１６ａ内に複数本配置されている。この平行格子２０は膜状部材１４１を開口部１６ａ内の領域でも支持して、膜状部材１４１が風圧により開口部１６ａの風下側へ大きく湾曲（膨出）することを防止する。この平行格子２０はヒータコア通風路１５ａの開口部１５ｂにも同様に配置される。平行格子２０はケース１１に一体成形できる。
【００５６】
ところで、支持部材１４３の移動範囲、すなわち、ガイドピン１４８の移動範囲は、両開口部１５ｂ、１６ａの下方範囲であるので、上記した左右両側のガイド溝２３は両開口部１５ｂ、１６ａの下方範囲のみに形成される。そして、ガイド溝２３の車両前方側および車両後方側には膜状部材１４１を収納するための専用のガイド溝２４ａ、２４ｂが形成される。
【００５７】
この両ガイド溝２４ａ、２４ｂは、ガイド溝２３の前後の端部から下方へ向かって滑らかに円弧状に垂下する形状になっている。すなわち、両ガイド溝２４ａ、２４ｂをケース１１の外形状に沿って形成することにより、ケース１１の外形状を小型化している。この両ガイド溝２４ａ、２４ｂには膜状部材１４１の幅方向の両端部のみが挿入されるので、両ガイド溝２４ａ、２４ｂの溝幅は図１に示すようにガイド溝２３の所定溝幅Ｗより十分小さくしてある。
【００５８】
膜状部材１４１と支持部材１４３とを含むスライドドア１４全体はガイド溝２３により車両前後方向ａに摺動可能な状態で保持される。そして、可撓性を有する膜状部材１４１は、ガイド溝２３、２４ａ、２４ｂによりガイドされてケース１１内の曲折した経路を往復動できる。
【００５９】
支持部材１４３はスライドドア１４の剛性増加手段としての役割を果たす他に、膜状部材１４１に対して操作力（駆動力）を伝達する役割も兼ねるものである。そのため、図１に示すように、ケース１１内において、スライドドア１４の直ぐ下方の部位で、ヒータコア１５の通風路１５ａとバイパス通路１６との中間部位（ケース１１内部の車両前後方向の中間部位）にドア駆動軸２５がドア移動方向ａと直交する方向（車両左右方向）に配置されている。
【００６０】
この駆動軸２５の軸方向の両端部はケース１１の左右両側の壁面の軸受け穴（図示せず）により回転自在に支持されている。この駆動軸２５のうち、上記支持部材１４３の枠部１４３ｃ、１４３ｄの下面部に形成されたギヤ１４９ａ、１４９ｂと対応する部位（軸方向の両側部位）にそれぞれ円形駆動ギヤ（ピニオン）２６を樹脂により一体成形で設けて、この駆動ギヤ２６を支持部材１４３のギヤ１４９ａ、１４９ｂとかみ合わせるようになっている。
【００６１】
また、駆動軸２５の軸方向の一端部はケース１１の外部へ突出し、この駆動軸２５の突出端部をドア駆動装置を構成するサーボモータ（図示せず）の出力軸に適宜の連結機構を介して連結している。これにより、サーボモータの回転が駆動軸２５に伝達され、さらに、駆動軸２５の回転は、駆動ギヤ２６とギヤ１４９ａ、１４９ｂとのかみ合いによりスライドドア１４の往復動運動に変換される。
【００６２】
一方、スライドドア１４がケース１１内に組付られた状態においては、図３に示すように支持部材１４３が風上側に位置し、そして、膜状部材１４１が風下側に位置する。膜状部材１４１の端部付近に設けた係止穴部１４１ｃの長穴形状の長軸方向を前述のように空気流れ方向に向けているから、係止穴部１４１ｃの長軸方向の寸法範囲内にて、膜状部材１４１が支持部材１４３の係止ピン１４３ｇに変位可能となっている。つまり、膜状部材１４１は支持部材１４３に対して空気流れ方向に微小寸法だけ変位可能に保持されている。
【００６３】
そのため、膜状部材１４１が風圧を受けると風下側に移動して、膜状部材１４１の表面がケース１１側に形成された開口部１５ｂ、１６ａ周縁のシール面およびガイド溝２３の風下側ガイド壁２３ｂに対して一層強く圧着するようになっている。
【００６４】
なお、図３はガイド溝２３の代表例として、バイパス通路（冷風通路）１６の開口部１６ａの車両左側部分のみを図示しているが、ガイド溝２３は開口部１６ａの車両右側部分、ヒータコア通風路１５ａの開口部１５ｂの車両左側部分および車両右側部分においても同一構成になっている。
【００６５】
次に、第１実施形態の作動を説明すると、エアミックス用スライドドア１４が車両前後方向ａに往復動することにより、スライドドア１４の支持部材１４３の開口部１４４と、ヒータコア１５の通風路１５ａの開口部１５ｂおよびバイパス通路１６の開口部１６ａとの連通面積が変化して、バイパス通路１６を通過する冷風とヒータコア１５を通過した温風とを所定の風量割合で混合して所望の吹出温度を得ることができる。
【００６６】
図１は最大冷房状態を示しており、エアミックス用スライドドア１４の前方側の膜状部材１４１がヒータコア１５の通風路１５ａの開口部１５ｂを全閉し、スライドドア１４の支持部材１４３の開口部１４４がバイパス通路１６の開口部１６ａに重合して開口部１６ａを全開している。スライドドア１４の後方側の膜状部材１４１は後方側のガイド溝２４ｂ内に移動して収納されている。
【００６７】
これに対し、最大暖房状態では、エアミックス用スライドドア１４の支持部材１４３の開口部１４４がヒータコア１５の通風路１５ａの開口部１５ｂと重合する位置に移動して開口部１５ｂを全開し、スライドドア１４の後方側の膜状部材１４１がバイパス通路１６の開口部１６ａを全閉する。スライドドア１４の前方側の膜状部材１４１は前方側のガイド溝２４ａ内に移動し収納される。
【００６８】
一方、図１に示すように、ケース１１内において、エアミックス用スライドドア１４の移動方向（車両前後方向）ａの１箇所のみに駆動軸２５を配置し、この駆動軸２５の駆動ギヤ２６から支持部材１４３に伝達される駆動力によりスライドドア１４が往復動する。その結果、スライドドア１４の膜状部材１４１の移動方向ａの両端部は自由端となっている。
【００６９】
このような駆動方式であるため、移動方向の先端が自由端となっている前後の膜状部材１４１および支持部材１４３は、ガイド溝２３およびガイド溝２４ａ、２４ｂによりガイドされて移動する。
【００７０】
ところで、本実施形態によると、支持部材１４３のガイドピン１４８とガイド溝２３間の摺動抵抗を効果的に低減できる。すなわち、本実施形態では図３に示すように、支持部材１４３のガイドピン１４８および膜状部材１４１の幅方向の両端部をともに共通のガイド溝２３内に挿入してガイドするとともに、支持部材１４３と膜状部材１４１との間に弾性部材１４３ｊを配置している。
【００７１】
このため、ガイド溝２３の溝幅寸法Ｗ、ガイドピン１４８の径寸法の製造上のバラツキ、更には、支持部材１４３のギヤ１４９ａ、１４９ｂと駆動軸２５との間隔の寸法バラツキ等が生じても、これらの寸法バラツキは弾性部材１４３ｊの弾性変形で吸収できる。従って、上記寸法バラツキが発生しても、ガイドピン１４８は弾性部材１４３ｊの弾性力にてガイド溝２３の下側（風上側）のガイド壁２３ａに接触するだけであり、ガイド溝２３の両ガイド壁２３ａ、２３ｂにガイドピン１４８が強く接触することを確実に回避できる。
【００７２】
しかも、ガイドピン１４８はガイド溝２３の下側（風上側）のガイド壁２３ａに接触するだけで、ガイド溝２３の上側（風上側）のガイド壁２３ａには常に膜状部材１４１が接触する。膜状部材１４１の表面は樹脂フィルム材の平滑面であり、ガイドピン１４８よりも低摩擦になっている。
【００７３】
以上のことが相俟って、ガイドピン１４８とガイド溝２３間の摺動抵抗を効果的に低減し、ドア操作力を低減できる。
【００７４】
なお、ガイド溝２３の溝幅寸法Ｗは、弾性部材１４３ｊの弾性圧縮後の板厚分を考慮して、先願のガイド溝２３の溝幅寸法Ｗ’（図１０）より大きく設定できる。このため、ガイド溝２３を成形する型の製造が容易になるとともに、ガイド溝２３から塵埃が落下しやすくなって、ガイド溝２３内に塵埃が堆積しにくくなるという利点もある。
【００７５】
また、溝幅寸法Ｗを拡大しても、弾性部材１４３ｊの弾性力にて常にガイドピン１４８をガイド溝２３の下側（風上側）のガイド壁２３ａに押し付け、また、膜状部材１４１をガイド溝２３の上側（風上側）のガイド壁２３ａに押し付けるから、スライドドアのガタは発生しない。このため、スライドドアのガタによる振動音も発生しない。
【００７６】
（第２実施形態）
第１実施形態では、弾性部材１４３ｊを支持部材１４３の枠部１４３ａの形成範囲内に配置しているので、膜状部材１４１の幅方向の両端部付近には弾性部材１４３ｊが接触しない部分が形成されるが、第２実施形態では図６（ａ）に示すように弾性部材１４３ｊをガイドピン１４８の突出範囲まで延ばして、膜状部材１４１の幅方向の全範囲に弾性部材１４３ｊが接触するようにしている。また、図６（ｂ）に示すように弾性部材１４３ｊをガイドピン１４８の突出範囲の１／２程度まで延ばすようにしてもよい。
【００７７】
図６（ａ）（ｂ）のように弾性部材１４３ｊの配置範囲を変更しても、第１実施形態と同様の作用効果を発揮できる。
【００７８】
（第３実施形態）
図６（ａ）に示す第２実施形態では膜状部材１４１の幅方向の端部をガイドピン１４８の突出先端部まで延ばしているが、第３実施形態では図７に示すように、膜状部材１４１の幅方向の端部を弾性部材１４３ｊと同様に支持部材１４３の枠部１４３ａの形成範囲内に配置している。このようにしても、第１実施形態と同様の作用効果を発揮できる。
【００７９】
（第４実施形態）
第１〜第３実施形態では、弾性部材１４３ｊを開口部１６ａ（１５ｂ）の開口領域に対応する部位とガイド溝２３の内側部位の両方にわたって配置しているが、第４実施形態では図８に示すように、弾性部材１４３ｊを開口部１６ａ（１５ｂ）の開口領域に対応する部位のみに配置している。
【００８０】
このようにしても、開口部１６ａ（１５ｂ）の開口領域には膜状部材１４１を支持する格子２０が備えられているので、格子２０と支持部材１４３との間にて弾性部材１４３ｊを弾性的に圧縮することができ、弾性部材１４３ｊが弾性力を発揮するので、第１実施形態と同様の作用効果を発揮できる。
【００８１】
（第５実施形態）
第１〜第４実施形態では、いずれも弾性部材１４３ｊとして支持部材１４３と別体のものを使用しているが、第５実施形態では図９に示すように、支持部材１４３が弾性を有する樹脂製であることに着目して、支持部材１４３の枠部１４３ａ、１４３ｂ、より具体的には、枠部１４３ａ、１４３ｂの支持面１４３ｋ（図４）に相当する部分に板ばね形状からなる樹脂ばね部材１４３ｍを一体成形し、この樹脂ばね部材１４３ｍを、膜状部材１４１に対して所定の弾性力にて圧接させるようにしている。これにより、弾性部材１４３ｊを支持部材１４３と一体成形の樹脂ばね部材１４３ｍにより構成できる。
【００８２】
（他の実施形態）
なお、第１実施形態では、エアミックス用スライドドア１４を、空気が流通可能な枠体状の形状からなる剛体の支持部材１４３と、この支持部材１４３の前後の両端部に結合される膜状部材１４１、１４１とにより構成しているが、適用対象の空気通路開閉装置の形態の変化により、前後両側の２個の膜状部材１４１、１４１の大きさを変えたり、あるいは支持部材１４３のドア移動方向ａへの前後両側のうち、いずれか片側のみに膜状部材１４１、１４１を結合するようにしてもよい。
【００８３】
また、上記の各実施形態では、スライドドア１４に、空気が流通可能な開口部１４４を有する枠体状の形状からなる剛体の支持部材１４３を備え、この支持部材１４３の移動方向の端部に膜状部材１４１、１４１を結合して、支持部材１４３の開口部１４４によりケース側の開口部１５ｂ，１６ａを開口し、膜状部材１４１、１４１によりケース側の開口部１５ｂ，１６ａを閉塞するようにしているが、枠体状の形状からなる剛体の支持部材の上面を覆うように膜状部材を被せ、支持部材と膜状部材との間に弾性部材を設けることによりスライドドアを構成し、このスライドドアの支持部材および膜状部材がケース側の開口部に重合しない位置に移動することによりケース側の開口部を開口し、スライドドアの支持部材および膜状部材がケース側の開口部に重合する位置に移動することによりケース側の開口部を閉塞する空気通路開閉装置が公知になっている（例えば、特開２００１−２５３２２２号公報参照）。このような空気通路開閉装置においても、支持部材のガイドピンをケース側のガイド溝によりガイドしてスライドドアを移動させることは同じである。そのため、支持部材のガイドピンおよび膜状部材と、ケース側のガイド溝との関係を上記の各実施形態と同様に設定することにより、上記の公知の空気通路開閉装置に本発明を適用できる。
【００８４】
また、本発明を車両用空調装置においてエアミックス用スライドドア１４だけでなく、吹出モードドア等の他のドア部に適用してもよい。更に、本発明は、車両用空調装置における空気通路の開閉に限らず、種々な用途の空気通路の開閉に対して広く適用できるものである。
【図面の簡単な説明】
【図１】本発明の第１実施形態を示す空調ユニット部の要部断面図である。
【図２】第１実施形態で用いるエアミックス用スライドドアの斜視図である。
【図３】図２のＡ−Ａ断面図である。
【図４】図２のＢ−Ｂ断面図である。
【図５】図４のＣ矢視図である。
【図６】第２実施形態の要部断面図で、図２のＡ−Ａ断面図に相当する。
【図７】第３実施形態の要部断面図で、図２のＡ−Ａ断面図に相当する。
【図８】第４実施形態の要部断面図で、図２のＡ−Ａ断面図に相当する。
【図９】第５実施形態の要部断面図で、図２のＡ−Ａ断面図に相当する。
【図１０】先願発明の要部断面図で、図２のＡ−Ａ断面図に相当する。
【符号の説明】
１１…ケース、１４…エアミックス用スライドドア、
１５ｂ…ヒータコア通風路の開口部、１６ａ…バイパス通路の開口部、
２３…ガイド溝、１４１…膜状部材、１４３…支持部材、
１４３ｊ…弾性部材、１４８…ガイドピン。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air passage opening and closing device that opens and closes an air passage by a slide door having a film-like member, and is suitable for use in a vehicle air conditioner.
[0002]
[Prior art]
Conventionally, various air passage opening / closing devices that switch air passages by moving a film-like member have been proposed for vehicle air conditioners. The present applicant has proposed an air passage opening and closing device that eliminates the need for a film member winding mechanism and has a simplified structure (see Patent Document 1). In this prior art, a guide groove is provided in a case forming an air passage, and both end portions in the width direction of the film member are guided by the guide groove, and the drive gear of the drive shaft is engaged with the film member. Yes.
[0003]
Thus, the film member is reciprocated along the guide groove by the rotation of the drive shaft, and the air passage of the case is opened and closed by the movement of the film member. Specifically, an opening for air circulation is provided in the membrane member, and the communication area between the opening of the membrane member and the air passage opening on the case side is changed by the movement of the membrane member, so that the air passage opening Open and close.
[0004]
However, when the prototype of the above-mentioned Patent Document 1 is actually examined, since the opening for air circulation is provided in the film-like member, the rigidity of the film-like member is reduced at the periphery of the opening. As a result, when an operating force from the drive gear of the drive shaft is applied to the film member, the film member is deformed around the opening, and the film member cannot be smoothly pushed out. I understood.
[0005]
Therefore, Japanese Patent Application No. 2001-384827 proposes a slide door structure in which the rigidity of the peripheral portion of the opening of the film-like member is increased. Specifically, as shown in FIG. 2 described later, a rigid support member 143 having a frame-like shape having an opening 144 through which air can flow is provided, and the support member 143 has an end in the moving direction. A sliding door structure is proposed in which the membrane member 141 is coupled, door operation force is applied to the support member 143, and the support member 143 is moved integrally with the membrane member 141.
[0006]
Next, the guide structure to the case side of the support member 143 in this prior application will be described with reference to FIGS. 2 and 10. The moving direction a of the support member 143 and the film-like member 141 shown in FIG. In addition, a guide pin 148 protruding in a direction orthogonal to the moving direction a is formed integrally with the support member 143. The guide pin 148 is inserted into a guide groove 23 formed in the case 11, and the guide pin 148 is guided and supported by the guide groove 23 toward the case 11 side.
[0007]
Further, the elastic member 143j is interposed between the supporting member 143 and the vicinity of the end portion of the film-like member 141 that is coupled to the supporting member 143, and the end portion of the film-like member 141 is caused by the elastic force of the elastic member 143j. The vicinity is pressed against the guide wall surface 23c on the case 11 side. The guide wall surface 23 c also serves as a seal surface for closing the opening 16 a of the air passage 16 by the film-like member 141.
[0008]
[Patent Document 1]
JP 2002-79819 A
[0009]
[Problems to be solved by the invention]
However, when the prototype of the above-mentioned prior application was actually examined, it was found that there was a problem that the door operating force increased. That is, in the above-mentioned prior application, since the guide groove 23 dedicated for the guide pin 148 is formed on the case 11 side, the guide pin 148 is directly attached between the guide wall surfaces 23a and 23b facing the guide groove 23. It is configured to guide.
[0010]
For this reason, the manufacturing width of the groove width dimension W ′ of the guide groove 23 and the diameter dimension of the guide pin 148, and further, the dimension variation of the drive gear mechanism of the support member 143 (specifically, the gear 149a of the support member 143). 149b and the center axis of the drive gear 26 (FIG. 1), the guide pin 148 comes into strong contact with the guide walls 23a and 23b, and the slide between the guide pin 148 and the guide groove 23 occurs. There is a problem that the resistance increases and the door operating force increases.
[0011]
If the groove width dimension W ′ of the guide groove 23 is increased in order to reduce the sliding resistance, the play between the guide pin 148 and the guide groove 23 increases, and a vibration sound of the slide door is generated. The groove width dimension W ′ cannot be simply increased.
[0012]
In view of the above, the present invention reduces the sliding resistance between a guide pin and a guide groove of a support member that supports a membrane member in an air passage opening and closing device that opens and closes the air passage by a slide door having the membrane member. With the goal.
[0013]
[Means for Solving the Problems]
  In order to achieve the above object, according to the first aspect of the present invention, the case (11) that forms the opening (15b, 16a) of the air passage, the movably disposed in the case (11), and the opening ( 15b, 16a), and a sliding door (14), which has a flexible membrane member (141) and a support member (143) that supports the membrane member (141). And an elastic member (143j) interposed between the membrane member (141) and the support member (143),
  The support member (143) includes a guide pin (148) protruding in a direction orthogonal to the moving direction of the slide door (14),
  On the other hand, the inner wall surface of the case (11) is provided with a guide groove (23) along the moving direction of the slide door (14),
  The guide groove (23) is formed in a single groove shape having a concave cross section having a predetermined groove width by two guide walls (23a, 23b) facing each other.
  Guide groove (23)Single groove shapeInsert the end in the width direction of the membrane member (141) and the guide pin (148) into the inside,
  Guide groove (23)Guide walls (23a, 23b)In the state where the elastic force of the elastic member (143j) acts between the end of the film member (141) in the width direction and the guide pin (148), the end of the film member (141) in the width direction and The guide pin (148) slides with respect to the guide groove (23).
[0014]
As a result, even if there are variations in the manufacturing of the groove width dimension of the guide groove (23) and the diameter dimension of the guide pin (148), and further the dimension variation of the drive mechanism of the support member (143), these various The dimensional variation can be absorbed by the elastic deformation of the elastic member (143j).
[0015]
Therefore, the problem that the guide pin (148) strongly contacts the guide walls (23a, 23b) of the guide groove (23) due to the dimensional variation can be solved. As a result, the sliding resistance between the guide pin (148) and the guide groove (23) can be reduced, and the door operating force can be reduced.
[0016]
Moreover, the film-like member (141) is in a state in which the elastic force of the elastic member (143j) acts between the guide groove (23), the end in the width direction of the film-like member (141) and the guide pin (148). Since the end portion in the width direction and the guide pin (148) are configured to slide relative to the guide groove (23), the groove width dimension of the guide groove (23) is equal to the arrangement space of the elastic member (143j). Therefore, it becomes easy to form the guide groove (23), and it is easy for the dust to fall from the guide groove (23), and it is difficult for the dust to collect in the guide groove (23).
[0017]
Further, even if the groove width dimension of the guide groove (23) is enlarged, the end portion in the width direction of the film-like member (141) and the guide pin (148) are guided by the elastic force of the elastic member (143j). Since it can be pressed against the guide walls (23a, 23b), rattling vibration noise of the sliding door can be prevented. The width direction of the membrane member (141) refers to a direction orthogonal to the moving direction of the slide door (14).
[0018]
  In invention of Claim 2, in Claim 1,Of the guide groove (23)Of the two guide walls (23a, 23b), the guide pin (148) slides on the guide wall (23a) on the leeward side, and the guide wall (23b) on the leeward side in the width direction of the membrane member (141). The end portion slides.
[0019]
Thereby, the membranous member (141) can be pressure-bonded to the leeward guide wall (23b) using the wind pressure of the blown air, and the sealing performance by the membranous member (141) can be exhibited well.
[0020]
As in the third aspect of the present invention, in the second aspect, the leeward guide wall (23b) specifically reaches the end face of the opening (15b, 16a) from the bottom of the guide groove (23). What is necessary is just to form so that it may extend linearly to a site | part.
[0021]
According to a fourth aspect of the present invention, in any one of the first to third aspects, the elastic member (143j) is a sliding door (14) between the membrane member (141) and the support member (143). ) And extending in a direction perpendicular to the moving direction of the elastic member (143j) over both the portion corresponding to the opening region of the opening (15b, 16a) and the inner portion of the guide groove (23). It can be.
[0022]
  As in the fifth aspect of the present invention, in any one of the first to third aspects, the elastic member (143j) is a sliding door (14) between the membrane member (141) and the support member (143). ) Is elongated in a direction orthogonal to the moving direction of
  In the opening area of the opening (15b, 16a),Located on the leeward side of the membrane member (141)Supports the membrane member (141)This prevents the membranous member (141) from bending toward the leeward side.A grid (20) is provided;
  You may arrange | position an elastic member (143j) only in the site | part corresponding to the opening area | region of an opening part (15b, 16a).
[0023]
As in the sixth aspect of the present invention, in any one of the first to fifth aspects, the elastic member (143j) can be configured as an independent member separate from the support member (143).
[0024]
As in the invention described in claim 7, in any one of claims 1 to 5, the support member (143) is formed of an elastic resin, and the elastic member (143j) is integrated with the support member (143). You may comprise by the shape | molded resin spring member.
[0025]
As in the invention described in claim 8, in any one of claims 1 to 7, the support member (143) has a frame-like shape having an opening (144) through which air can flow. The membrane member (141) may be coupled to the end of the support member (143) in the moving direction.
[0026]
In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
FIG. 1 shows a main part of an air conditioning unit 10 that houses a heat exchanger part among indoor unit parts in a vehicle air conditioner to which a first embodiment of the present invention is applied. The air conditioning unit 10 is disposed at a substantially central portion in the vehicle left-right (width) direction inside an instrument panel (not shown) at the front of the vehicle interior. The up and down arrows in FIG. 1 indicate directions in the vehicle mounted state. The indoor unit portion of the vehicle air conditioner is roughly divided into the air conditioning unit 10 at the substantially central portion and a blower unit (not shown) that is offset on the passenger seat side inside the instrument panel.
[0028]
The blower unit includes an inside / outside air switching box that switches and introduces outside air (outside air in the passenger compartment) or inside air (air inside the cabin), and a centrifugal blower that blows air introduced into the inside / outside air switching box. The blown air from the blower unit flows into the lowermost air inflow space 12 in the case 11 of the air conditioning unit 10.
[0029]
The case 11 is formed of a resin having elasticity like polypropylene and high mechanical strength. Specifically, the case 11 is divided into a plurality of divided cases for the convenience of die cutting for molding, the reasons for assembling the air conditioner in the case, and the like. It is configured to be fastened.
[0030]
In the case 11 of the air conditioning unit 10, an evaporator 13 that forms a cooling heat exchanger is disposed substantially horizontally with a small inclination angle above the air inflow space 12. Accordingly, the blown air of the blower unit flows into the air inflow space 12 and then passes from the space 12 through the evaporator 13 from below to above. As is well known, low-pressure refrigerant decompressed by a decompression device such as an expansion valve of a refrigeration cycle for vehicle air conditioning flows into the evaporator 13, and the low-pressure refrigerant absorbs heat from the blown air and evaporates. A drain port 11 a for discharging condensed water falling from the evaporator 13 is formed at the bottom of the bottom surface of the case 11.
[0031]
An air mix slide door 14 having a film-like member is disposed above the evaporator 13 (on the downstream side of the air flow). Further, a hot water type is provided above the slide door 14 for the air mix (on the downstream side of the air flow). A heater core 15 is disposed. As is well known, the heater core 15 is a heating heat exchanger that heats air using warm water (cooling water) of a vehicle engine as a heat source.
[0032]
The heater core 15 is also arranged in a substantially horizontal direction, but the heater core 15 is smaller than the passage cross-sectional area in the case 11 and is arranged in the case 11 so as to be biased toward the vehicle front side. As a result, a bypass passage 16 is formed on the vehicle rear side of the heater core 15 (a portion closer to the passenger seat) so as to bypass the heater core 15 and allow air to flow.
[0033]
The air mix slide door 14 moves (reciprocates) between the evaporator 13 and the heater core 15 in the vehicle front-rear direction a, and the opening 15b of the air passage (warm air passage) 15a of the heater core 15 and the bypass passage. (Cold air passage) Opening 16a of 16 is opened and closed. Thereby, the air volume ratio of the warm air that passes through the heater core ventilation passage 15a and the cool air that passes through the bypass passage 16 can be adjusted to adjust the temperature of the air blown into the passenger compartment. Accordingly, the air mixing slide door 14 constitutes temperature adjusting means for the air blown into the vehicle interior.
[0034]
The warm air that has passed through the heater core 15 is guided toward the vehicle rear side by the warm air guide wall 17 and travels toward the air mixing unit 18. The air mixing unit 18 mixes the cool air from the bypass passage 16 and the warm air after passing through the heater core to obtain a desired temperature.
[0035]
A face opening, a defroster opening, and a foot opening (not shown) are arranged as blowout openings on the upper surface (the downstream end of the air) of the case 11, and a plurality of these blowout openings are not shown. Is switched to open and close. Therefore, the air that has reached the desired temperature in the air mixing unit 18 passes through the predetermined blowing opening selected by the blowing mode door and is blown into the vehicle interior.
[0036]
By the way, the above-described air mix slide door 14 is configured by using a flexible film-like member (resin film material) 141 so as to be deformable along the bent path shown in FIG. As a specific material of the film member 141, a PET (polyethylene terephthalate) film which is a resin material having flexibility and low frictional resistance is preferable.
[0037]
In addition, the plate | board thickness of the film-form member 141 is a micro dimension about 100-250 micrometers, for example. By setting the thickness of the film in such a range, the film can be easily deformed along the bent shape at the bent portion of the reciprocating path while ensuring the rigidity necessary for sending out the slide door 14. Suppresses significant increase in operating force due to bending force.
[0038]
Next, the air mix slide door 14 will be described in detail with reference to FIGS. FIG. 2 illustrates a specific configuration of the air-mix slide door 14 alone. 3 is a cross-sectional view taken along the line AA of FIG. 2 in a state in which the air mixing slide door 14 of FIG. 2 is assembled in the case 11 as shown in FIG. 4 is a cross-sectional view taken along line BB in FIG. 2, and FIG. 5 is a view taken in the direction of arrow C in FIG.
[0039]
As shown in FIG. 2, a support member 143 having a frame-like shape through which air can flow is arranged in a central region in the movement direction a of the door 14, and both front and rear sides of the support member 143 in the door movement direction a. The film-like members 141 and 141 are coupled to the end portions of the two, respectively.
[0040]
The support member 143 is a rigid body made of a resin molded product such as polypropylene, and frame portions 143a and 143b extending in a direction orthogonal to the door movement direction a are arranged in parallel at predetermined intervals, and both ends in the longitudinal direction of the frame portions 143a and 143b. The vicinity of the part is coupled by frame parts 143c and 143d extending in an arc shape in the door movement direction a. Accordingly, the frame portions 143a to 143d constitute a rectangular frame shape.
[0041]
In addition, two reinforcing ribs 143e and 143f extending in the door movement direction a are disposed in the longitudinal intermediate portions of the frame portions 143a and 143b before and after the door movement direction a. These frame portions 143a to 143d and the reinforcing ribs 143e and 143f are integrally formed of resin.
[0042]
Inside the frame portions 143a to 143d is an opening portion 144 through which air can flow. The opening portion 144 is divided into three portions by reinforcing ribs 143e and 143f. Gears 149a and 149b are formed on the lower surface portions of the left and right frame portions 143c and 143d extending in the door moving direction a, respectively. The gears 149a and 149b are formed to extend in an arc shape along the arc shapes of the left and right frame portions 143c and 143d.
[0043]
Columnar guide pins 148 are formed at both ends in the longitudinal direction of the front and rear frame portions 143a and 143b extending in the direction orthogonal to the door movement direction a. The guide pins 148 are formed at a total of four locations so as to protrude from the support member 143 to the left and right sides (in the direction orthogonal to the door movement direction a), and are slidable in the guide groove 23 on the case side shown in FIGS. Mating. Details of the guide groove 23 will be described later.
[0044]
A plurality of (six in the example of FIG. 2) locking pins 143g are integrally formed at predetermined intervals along the longitudinal direction of the frame portions 143a and 143b. The locking pin 143g is arranged at a part facing the opening 144 in the frame parts 143a and 143b. As shown in FIG. 4, the locking pin 143g has a cylindrical shaft portion 143h, and has a shape in which an enlarged head portion 143i that is enlarged like a bowl is integrally formed at the tip of the shaft portion 143h. .
[0045]
On the other hand, an elongated hole-shaped locking hole 141c is formed in the vicinity of the ends of the membrane members 141 and 141 as shown in FIG. The long-axis direction of the elongated hole shape of the locking hole portion 141c is directed in the vertical direction, that is, the air flow direction in the assembled state of the membrane members 141 and 141. Further, a slit 141d extending from the locking hole portion 141c to the left and right sides (short axis direction) of the long hole shape is formed.
[0046]
Although the diameter dimension of the long hole direction of the long hole shape of the locking hole part 141c is larger than the diameter dimension of the enlarged head part 143i of the locking pin 143g, the short hole direction of the long hole shape of the locking hole part 141c is large. The diameter dimension is smaller than the diameter dimension of the enlarged head 143i of the locking pin 143g, and is designed to be equal to or greater than the diameter dimension of the shaft portion 143h of the locking pin 143g.
[0047]
As a result, when the locking hole 141c of the membrane member 141, 141 is fitted into the locking pin 143g, the enlarged head 143i of the locking pin 143g can be inserted into the locking hole 141c by widening the slit 141d. . When the enlarged head 143i passes through the locking hole 141c, the slit 141d is closed by the elastic restoring force of the membrane members 141 and 141, so that the enlarged head 143i can be reliably locked to the locking hole 141c. The film-like members 141 and 141 can be coupled to the frame-shaped support member 143.
[0048]
As shown in FIG. 4, the support surface 143k of the elastic member 143j is formed integrally with the frame portion 143a of the support member 143, and the elastic member 143j is fixed on the support surface 143k by bonding or the like. This elastic member 143j presses the membranous member 141 against the sealing surface on the case 11 side by its own elastic force to improve the sealing effect of the membranous member 141. Specifically, the elastic member 143j is made of an elastic material such as ether urethane foam.
[0049]
4 shows only the configuration on the frame portion 143a side, the support surface 143k and the elastic member 143j are similarly provided on the other frame portion 143b side.
[0050]
Next, the above-described guide groove 23 will be described more specifically. The guide groove 23 is located immediately below the opening 15b of the heater core ventilation passage 15a and the opening 16a of the bypass passage 16 inside the case 11 as shown in FIG. Located on the upstream side of the air flow. The guide groove 23 is formed to extend in an arc shape in the vehicle front-rear direction (door movement direction a) along the arc shape of the left and right frame portions 143c and 143d of the support member 143.
[0051]
As shown in FIG. 3, the guide groove 23 is formed in a concave cross section having a predetermined groove width W that opens toward the inside of the case 11. More specifically, the guide groove 23 has guide walls 23a and 23b that are opposed to each other with a predetermined width W, and both the guide walls 23a and 23b are moved to the wall surfaces on both sides in the vehicle left-right direction on the inner wall surface of the case 11. It is integrally formed so as to extend in parallel with the direction a. In FIG. 3, only the guide groove 23 formed in the wall surface portion of the case 11 on the left side of the vehicle is illustrated.
[0052]
The guide groove 23 is configured to guide both the guide pin 148 and the film member 141. For this reason, of the guide walls 23a and 23b of the guide groove 23, the upper (leeward side) guide wall 23b extends from the bottom side (left end side in FIG. 3) of the guide groove 23 to the opening end face ( It is formed so as to extend linearly until it reaches the edge.
[0053]
In the slide door 14, the guide pin 148 (support member 143) → the elastic member 143 j → the film-shaped member 141 is laminated in this order from the windward side to the windward side in the air flow direction. When both ends in the width direction (perpendicular to the door movement direction a) and the guide pin 148 are inserted into the guide groove 23, the insertion portion of the film-like member 141 is guided by the upper (leeward) guide wall 23b. 148 is guided by the lower (windward) guide wall 23a.
[0054]
Here, the predetermined groove width W of the guide groove 23 is such that the elastic member 143j is elastically compressed in the door assembly state shown in FIG. It is set to be reduced from a predetermined amount (for example, about 1 mm) from (for example, about 5 mm). Therefore, the film-like member 141 is pressed against the upper (leeward) guide wall 23b and the case-side sealing surface at the peripheral edge of the opening 16a by the elastic force of the elastic member 143j.
[0055]
In FIG. 3, the lattice 20 located in the opening 16a is a parallel lattice parallel to the moving direction (vehicle longitudinal direction) a of the film-like member 141, and a plurality of the parallel lattices 20 are arranged in the opening 16a. ing. The parallel grating 20 supports the film-like member 141 even in the region in the opening 16a, and prevents the film-like member 141 from being greatly bent (bulged) toward the leeward side of the opening 16a due to wind pressure. The parallel grid 20 is similarly disposed in the opening 15b of the heater core ventilation path 15a. The parallel grating 20 can be integrally formed with the case 11.
[0056]
By the way, the movement range of the support member 143, that is, the movement range of the guide pin 148 is the lower range of both the openings 15b and 16a, so the above-described guide grooves 23 on both the left and right sides are the lower ranges of the both openings 15b and 16a. Only formed. Dedicated guide grooves 24 a and 24 b for accommodating the film-like member 141 are formed on the vehicle front side and the vehicle rear side of the guide groove 23.
[0057]
Both the guide grooves 24a and 24b have a shape that hangs smoothly in an arc from the front and rear ends of the guide groove 23 downward. That is, by forming both guide grooves 24 a and 24 b along the outer shape of the case 11, the outer shape of the case 11 is reduced in size. Since only the both ends in the width direction of the film-like member 141 are inserted into the both guide grooves 24a and 24b, the groove widths of the both guide grooves 24a and 24b are the predetermined groove width W of the guide groove 23 as shown in FIG. It is made smaller enough.
[0058]
The entire slide door 14 including the film member 141 and the support member 143 is held by the guide groove 23 so as to be slidable in the vehicle longitudinal direction a. The flexible film-like member 141 is guided by the guide grooves 23, 24 a, and 24 b and can reciprocate along a bent path in the case 11.
[0059]
The support member 143 plays a role of transmitting the operating force (driving force) to the membrane member 141 in addition to the role of increasing the rigidity of the slide door 14. Therefore, as shown in FIG. 1, in the case 11, an intermediate portion between the ventilation path 15 a of the heater core 15 and the bypass passage 16 (an intermediate portion in the vehicle front-rear direction inside the case 11) immediately below the slide door 14. The door drive shaft 25 is disposed in a direction (vehicle left-right direction) orthogonal to the door movement direction a.
[0060]
Both ends in the axial direction of the drive shaft 25 are rotatably supported by bearing holes (not shown) on the left and right wall surfaces of the case 11. Of these drive shafts 25, circular drive gears (pinions) 26 are respectively resinized at portions (both sides in the axial direction) corresponding to the gears 149a and 149b formed on the lower surface portions of the frame portions 143c and 143d of the support member 143. Thus, the driving gear 26 is engaged with the gears 149a and 149b of the support member 143.
[0061]
One end portion of the drive shaft 25 in the axial direction protrudes to the outside of the case 11, and an appropriate connecting mechanism is connected to the output shaft of a servo motor (not shown) constituting the door drive device. Are connected through. Thereby, the rotation of the servo motor is transmitted to the drive shaft 25, and the rotation of the drive shaft 25 is converted into the reciprocating motion of the slide door 14 by the meshing of the drive gear 26 and the gears 149a and 149b.
[0062]
On the other hand, in the state where the slide door 14 is assembled in the case 11, as shown in FIG. 3, the support member 143 is located on the leeward side, and the membrane member 141 is located on the leeward side. Since the long-axis direction of the elongated hole shape of the locking hole portion 141c provided in the vicinity of the end portion of the membrane member 141 is directed to the air flow direction as described above, the dimension range in the long-axis direction of the locking hole portion 141c. Inside, the membranous member 141 can be displaced to the locking pin 143 g of the support member 143. That is, the membrane member 141 is held so as to be displaceable by a minute dimension in the air flow direction with respect to the support member 143.
[0063]
Therefore, when the film-like member 141 receives wind pressure, the film-like member 141 moves to the leeward side, and the surface of the film-like member 141 has a sealing surface around the periphery of the openings 15b and 16a formed on the case 11 side and the leeward guide wall of the guide groove 23. The pressure is more strongly pressed against 23b.
[0064]
3 shows only the vehicle left side portion of the opening portion 16a of the bypass passage (cold air passage) 16 as a representative example of the guide groove 23. However, the guide groove 23 has the vehicle right side portion of the opening portion 16a and the heater core ventilation. The same configuration is applied to the vehicle left side portion and the vehicle right side portion of the opening 15b of the road 15a.
[0065]
Next, the operation of the first embodiment will be described. As the air mix slide door 14 reciprocates in the vehicle longitudinal direction a, the opening 144 of the support member 143 of the slide door 14 and the ventilation path 15a of the heater core 15 are described. The communication area of the opening 15b of the bypass passage 16 and the opening 16a of the bypass passage 16 changes, and the cool air passing through the bypass passage 16 and the warm air passing through the heater core 15 are mixed at a predetermined air volume ratio to obtain a desired blowing temperature. Can be obtained.
[0066]
FIG. 1 shows the maximum cooling state. The membrane member 141 on the front side of the air mix slide door 14 fully closes the opening 15b of the air passage 15a of the heater core 15, and the opening of the support member 143 of the slide door 14 is shown. The portion 144 overlaps with the opening 16a of the bypass passage 16 to fully open the opening 16a. The membrane member 141 on the rear side of the slide door 14 is moved and accommodated in the guide groove 24b on the rear side.
[0067]
In contrast, in the maximum heating state, the opening 144 of the support member 143 of the air mix slide door 14 moves to a position where it overlaps with the opening 15b of the ventilation path 15a of the heater core 15 to fully open the opening 15b and slide. The membrane member 141 on the rear side of the door 14 fully closes the opening 16 a of the bypass passage 16. The membrane member 141 on the front side of the slide door 14 is moved and stored in the guide groove 24a on the front side.
[0068]
On the other hand, as shown in FIG. 1, in the case 11, the drive shaft 25 is disposed only in one place in the moving direction (vehicle longitudinal direction) a of the air mix slide door 14. The slide door 14 reciprocates by the driving force transmitted to the support member 143. As a result, both end portions in the moving direction a of the film-like member 141 of the slide door 14 are free ends.
[0069]
Because of such a driving method, the front and rear membrane members 141 and the support member 143 whose front ends in the moving direction are free ends are moved while being guided by the guide grooves 23 and the guide grooves 24a and 24b.
[0070]
By the way, according to this embodiment, the sliding resistance between the guide pin 148 of the support member 143 and the guide groove 23 can be reduced effectively. That is, in this embodiment, as shown in FIG. 3, both the guide pins 148 of the support member 143 and both end portions in the width direction of the film-like member 141 are inserted into the common guide groove 23 to be guided, and the support member 143. The elastic member 143j is disposed between the film member 141 and the film member 141.
[0071]
For this reason, even if there are variations in the manufacturing of the groove width dimension W of the guide groove 23 and the diameter dimension of the guide pin 148, and further variations in the distance between the gears 149 a and 149 b of the support member 143 and the drive shaft 25, etc. These dimensional variations can be absorbed by the elastic deformation of the elastic member 143j. Therefore, even if the above dimensional variation occurs, the guide pin 148 only contacts the guide wall 23a on the lower side (windward side) of the guide groove 23 by the elastic force of the elastic member 143j. It is possible to reliably avoid the guide pins 148 coming into strong contact with the walls 23a and 23b.
[0072]
In addition, the guide pin 148 only contacts the guide wall 23a on the lower side (windward side) of the guide groove 23, and the film-like member 141 always contacts the guide wall 23a on the upper side (windward side) of the guide groove 23. The surface of the film-like member 141 is a smooth surface of a resin film material and has a lower friction than the guide pin 148.
[0073]
In combination with the above, the sliding resistance between the guide pin 148 and the guide groove 23 can be effectively reduced, and the door operating force can be reduced.
[0074]
The groove width dimension W of the guide groove 23 can be set larger than the groove width dimension W ′ (FIG. 10) of the guide groove 23 of the prior application in consideration of the thickness of the elastic member 143j after elastic compression. For this reason, there is an advantage that the mold for forming the guide groove 23 is easily manufactured, and dust is easily dropped from the guide groove 23, so that the dust is not easily accumulated in the guide groove 23.
[0075]
Even if the groove width dimension W is increased, the guide pin 148 is always pressed against the guide wall 23a on the lower side (windward side) of the guide groove 23 by the elastic force of the elastic member 143j, and the film-like member 141 is guided. Since it presses against the guide wall 23a on the upper side (windward side) of the groove 23, the sliding door does not play. For this reason, the vibration sound by the play of a slide door does not generate | occur | produce.
[0076]
(Second Embodiment)
In the first embodiment, since the elastic member 143j is disposed within the formation range of the frame portion 143a of the support member 143, a portion where the elastic member 143j does not contact is formed near both ends in the width direction of the film-like member 141. However, in the second embodiment, as shown in FIG. 6A, the elastic member 143j is extended to the protruding range of the guide pin 148 so that the elastic member 143j contacts the entire range of the film-shaped member 141 in the width direction. I have to. Further, as shown in FIG. 6B, the elastic member 143j may be extended to about ½ of the protruding range of the guide pin 148.
[0077]
Even if the arrangement range of the elastic member 143j is changed as shown in FIGS. 6 (a) and 6 (b), the same effect as that of the first embodiment can be exhibited.
[0078]
(Third embodiment)
In the second embodiment shown in FIG. 6A, the end in the width direction of the film-like member 141 extends to the protruding tip of the guide pin 148. In the third embodiment, as shown in FIG. The end portion in the width direction of the member 141 is disposed within the formation range of the frame portion 143a of the support member 143 in the same manner as the elastic member 143j. Even if it does in this way, the effect similar to 1st Embodiment can be exhibited.
[0079]
(Fourth embodiment)
In the first to third embodiments, the elastic member 143j is arranged over both the part corresponding to the opening region of the opening 16a (15b) and the inner part of the guide groove 23. In the fourth embodiment, FIG. As shown, the elastic member 143j is disposed only in a portion corresponding to the opening region of the opening 16a (15b).
[0080]
Even in this case, since the lattice region 20 that supports the film-like member 141 is provided in the opening region of the opening 16a (15b), the elastic member 143j is elastically disposed between the lattice 20 and the support member 143. Since the elastic member 143j exhibits an elastic force, the same effect as the first embodiment can be exhibited.
[0081]
(Fifth embodiment)
In each of the first to fourth embodiments, the elastic member 143j is separate from the support member 143. In the fifth embodiment, as shown in FIG. 9, the support member 143 is a resin having elasticity. Focusing on the fact that it is made of resin springs having a leaf spring shape in the portions corresponding to the frame portions 143a and 143b of the support member 143, more specifically, the support surfaces 143k (FIG. 4) of the frame portions 143a and 143b. The member 143m is integrally formed, and the resin spring member 143m is pressed against the membrane member 141 with a predetermined elastic force. Thereby, the elastic member 143j can be comprised by the support member 143 and the resin spring member 143m integrally molded.
[0082]
(Other embodiments)
In the first embodiment, the air mix slide door 14 is formed in a film-like shape that is coupled to a rigid support member 143 having a frame-like shape through which air can flow, and both front and rear ends of the support member 143. Although the members 141 and 141 are configured, the size of the two membrane members 141 and 141 on both the front and rear sides may be changed or the door of the support member 143 may be changed depending on the change of the form of the air passage opening / closing device to be applied. You may make it couple | bond the film-form members 141 and 141 only to either one among the front and back both sides to the moving direction a.
[0083]
In each of the above embodiments, the slide door 14 is provided with a rigid support member 143 having a frame-like shape having an opening 144 through which air can flow, and the support member 143 has an end in the moving direction. The film-like members 141 and 141 are joined, the case-side openings 15b and 16a are opened by the opening 144 of the support member 143, and the case-side openings 15b and 16a are closed by the film-like members 141 and 141. However, a sliding door is configured by covering the upper surface of a rigid support member having a frame-like shape with a membrane member, and providing an elastic member between the support member and the membrane member, The sliding door support member and the film-like member move to a position where they do not overlap with the opening on the case side, thereby opening the case-side opening. An air passage switching device for closing the opening of the case side by moving to a position which polymerize opening side is in the public domain (e.g., see JP 2001-253222). In such an air passage opening and closing device, the guide pin of the support member is guided by the guide groove on the case side to move the slide door. Therefore, the present invention can be applied to the above-described known air passage opening and closing device by setting the relationship between the guide pin and the film-like member of the support member and the guide groove on the case side in the same manner as in each of the above embodiments.
[0084]
Further, the present invention may be applied not only to the air mix slide door 14 but also to other door portions such as a blow-out mode door in the vehicle air conditioner. Furthermore, the present invention is not limited to the opening and closing of the air passage in the vehicle air conditioner, and can be widely applied to the opening and closing of the air passage for various uses.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part of an air conditioning unit showing a first embodiment of the present invention.
FIG. 2 is a perspective view of an air mix sliding door used in the first embodiment.
3 is a cross-sectional view taken along the line AA in FIG.
4 is a cross-sectional view taken along the line BB in FIG.
5 is a view taken in the direction of arrow C in FIG.
6 is a cross-sectional view of a main part of the second embodiment and corresponds to a cross-sectional view taken along line AA of FIG.
7 is a cross-sectional view of an essential part of the third embodiment and corresponds to a cross-sectional view taken along line AA of FIG.
FIG. 8 is a cross-sectional view of a main part of the fourth embodiment, and corresponds to a cross-sectional view taken along the line AA in FIG.
FIG. 9 is a cross-sectional view of a main part of the fifth embodiment, and corresponds to a cross-sectional view taken along the line AA of FIG.
10 is a cross-sectional view of an essential part of the invention of the prior application, and corresponds to a cross-sectional view taken along the line AA in FIG.
[Explanation of symbols]
11 ... Case, 14 ... Sliding door for air mix,
15b: heater core ventilation passage opening, 16a: bypass passage opening,
23 ... Guide groove, 141 ... Membrane member, 143 ... Support member,
143j ... elastic member, 148 ... guide pin.

Claims

A case (11) that forms the opening (15b, 16a) of the air passage;
A sliding door (14) that is movably disposed in the case (11) and opens and closes the openings (15b, 16a);
The sliding door (14) includes a flexible membrane member (141), a support member (143) that supports the membrane member (141), the membrane member (141), and the support member ( 143) and an elastic member (143j) interposed therebetween,
The support member (143) includes a guide pin (148) protruding in a direction orthogonal to the moving direction of the slide door (14),
On the other hand, the inner wall surface of the case (11) is provided with a guide groove (23) along the moving direction of the slide door (14),
The guide groove (23) is formed in a single groove shape having a concave cross section having a predetermined groove width by two guide walls (23a, 23b) facing each other.
Inserting the end in the width direction of the film-like member (141) and the guide pin (148) into a single groove shape of the guide groove (23),
The elastic force of the elastic member (143j) is between the guide wall (23a, 23b) of the guide groove (23) , the end in the width direction of the film-like member (141), and the guide pin (148). An air passage opening and closing device in which the end portion in the width direction of the film-like member (141) and the guide pin (148) slide relative to the guide groove (23) in an acted state.

Of the two guide walls (23a, 23b), the guide pin (148) slides on the guide wall (23a) on the leeward side, and the guide wall (23b) on the leeward side of the film-like member (141). The air passage opening and closing device according to claim 1, wherein an end portion in the width direction slides.

The air according to claim 2, wherein the leeward guide wall (23b) extends linearly from a bottom of the guide groove (23) to a portion reaching the end face of the opening (15b, 16a). Passage opening and closing device.

The elastic member (143j) has a shape extending elongated in a direction perpendicular to the moving direction of the slide door (14) between the membrane member (141) and the support member (143),
The said elastic member (143j) is arrange | positioned over both the site | part corresponding to the opening area | region of the said opening part (15b, 16a), and the inner side part of the said guide groove (23), The Claim 1 thru | or 3 characterized by the above-mentioned. The air passage opening and closing device according to any one of the above.

The elastic member (143j) has a shape extending elongated in a direction perpendicular to the moving direction of the slide door (14) between the membrane member (141) and the support member (143),
In the opening area of the openings (15b, 16a) , the membrane member (141) is located on the leeward side of the membrane member (141) so that the membrane member (141) is supported on the leeward side. Is provided with a grid (20) to prevent bending to
The air passage opening and closing device according to any one of claims 1 to 3, wherein the elastic member (143j) is disposed only in a portion corresponding to an opening region of the opening (15b, 16a). .

The air passage opening and closing device according to any one of claims 1 to 5, wherein the elastic member (143j) is an independent member separate from the support member (143).

The said support member (143) is shape | molded by the resin which has elasticity, The said elastic member (143j) was comprised by the resin spring member integrally molded with the said support member (143), The one of Claim 1 thru | or 5 characterized by the above-mentioned. The air passage opening and closing device according to claim 1.

The support member (143) has a frame-like shape having an opening (144) through which air can flow.
The air passage opening and closing device according to any one of claims 1 to 7, wherein the membrane member (141) is coupled to an end portion of the support member (143) in the moving direction.