JP3983538B2

JP3983538B2 - Outdoor hood

Info

Publication number: JP3983538B2
Application number: JP2001393440A
Authority: JP
Inventors: 隆横山
Original assignee: 松下エコシステムズ株式会社
Priority date: 2001-07-09
Filing date: 2001-12-26
Publication date: 2007-09-26
Anticipated expiration: 2021-12-26
Also published as: JP2003090572A

Description

【０００１】
【発明の属する技術分野】
本発明は、建物の換気を行うために換気口の屋外側に取り付けられる屋外フードに関する。
【０００２】
【従来の技術】
近年、住宅に求められる要望として、住宅の耐久性に関する要望が特に高まっている。その中で、換気扇等の換気口においては、雨が換気口から室内に侵入して、室内の住宅材の耐久性を害してしまうことおよび、換気口から屋外に排出される排出空気による外壁の汚れが問題とされている。
【０００３】
従来、換気口の屋外側には雨の侵入を防止するため、フードを有した屋外フードが施工されており、この種の屋外フードは雨の侵入防止のため、左右方向を閉口し、上方向を閉口、または上方向の一部を開口したものが知られていた。
【０００４】
以下、その構成について、図３４〜図３７を参照しながら説明する。
【０００５】
図３４および図３５に示すように、壁１０１に開口された開口部１０２にダクト１０３が差し込まれ、円筒状の筒部１０４と中央に開口部１０５とを有した本体１０７が固定され、本体１０７には、正面部１０８、天面部１０９およびフード側面部１１０を閉口とし、フード下面部を開口としたフード１１２を固定して屋外フード１１３を構成していた。そして屋外フード１１３を施工する際には、壁１０１内のダクト１０３に内接するように筒部１０４を挿入し、筒部１０４に固定された板ばね１１４により壁１０１に取着していた。
【０００６】
また、別の屋外フードとして、図３６および図３７に示すように、フード上面部１１５に壁１０１よりフード１１１の正面部１０８の方向に対し、下方傾斜となり、かつフード上面部１１５の一部を開口した長さの天面カバー１１６を設けて屋外フード１１７を構成していた。
【０００７】
【発明が解決しようとする課題】
このような従来の屋外フードでは、前者においては、室外１１８で雨が降ったときには、風が弱風状態であれば、雨滴１１９は上から降ってくるのでフード１１２の天面部１０９とフード側面部１１０の閉口によって開口部１０５から室内１２０側に雨が侵入するのを防げるが、降雨時、強い風１２１を伴うときには、風は壁１０１の室外１１８側に当たり、下から吹き上げる風１２２が発生するので、フード下面部１１１から風が入り込んでしまう。このとき、風は雨滴１１９も同時に吸い込むため、フード内部１２３に雨が入り込んでしまう。そしてフード内部１２３に入り込んだ雨滴１１９を伴った風はその行き場が開口部１０５しかないため、開口部１０５を通り室内側１２０に侵入し、住宅材を汚してしまい、住宅の耐久性が損なわれるという課題があった。
【０００８】
また、室内１２０の汚染された空気が室外１１８に換気されるときには、換気扇（図示せず）により換気される室内空気はダクト１０３を通り筒部１０４の開口部１０５よりフード内部１２３に入り、フード下面部１１１より室外１１８より排出される。このとき、フード下面部１１１より室外１１８に排出される汚染空気の一部が壁１０１に接触して壁１０１を汚染するという課題があった。
【０００９】
また、後者における屋外フード１１７では、強風雨時、雨を伴った下から吹き上げる風１２２がフード内部１２３を通り、一部分はフード上面部１１５の開口部１２４から風が抜けるが、大部分の風はフード上面部１１５の天面カバー１１６に当たり、下方にはね返され、下方より吹き上げる風１２２と衝突するため、風の行き場がなくなり、開口部１０５を通り、室内１２０側に流れ込んでしまう。これは風の流入する面積であるフード下面部１１１の開口面積と、風の排出するフード上面部１１５の開口部１２４の面積の比率の関係で、排出する面積の方が流入する面積よりも小さいため発生してしまう現象である。そのため、開口部１０５に風雨が流入してしまう結果となる。
【００１０】
また、上から降ってきた雨滴１１９は天面カバー１１６に沿って下方に流れるが、天面カバー１１６の屋外側へ突出するひさしの長さが短いと天面カバー１１６より滴れた雨滴１１９が開口部１０５に吸い込まれてしまうため、天面カバー１１６のひさしを長くしなければならず屋外フード１１７の壁面からの奥行寸法が増大するため、製品が壁面に設置された状態の建物のデザイン性を損なうという課題があった。
【００１１】
本発明は、上記課題を解決するもので、住宅材の耐久性が損なわれるのを防止し、製品および、製品設置時の建物全体のデザイン性を向上でき、また、換気流によって屋外側の壁面が汚染されるのを緩和できる屋外フードを提供することを目的とする。
【００１２】
【課題を解決するための手段】
本発明の屋外フードにおいては、外壁に取り付けられる略中央に開口部を有した本体と、この本体に固定されて少なくとも正面部および天面部を閉口したフードとを備え、前記フードの正面部側方に空気の流通路となる開口を形成し、前記フードの右側および左側の側部の両方の開口面積の合計が、前記フードの下部の開口面積より大とし、吹き上げの風は前記フードの前記下部より侵入し、前記フードの前記側部の上部より抜ける構成を特徴とした構成としたものである。
【００１３】
この発明によれば、住宅材の耐久性が損なわれるのを防止し、製品および製品設置時の建物全体のデザイン性を向上でき、また、換気流によって屋外側の壁面が汚染されるのを緩和できる屋外フードを提供することができる。
【００１４】
【発明の実施の形態】
本発明の請求項１に記載の発明は、外壁に取り付けられる略中央に開口部を有した本体と、この本体に固定されて少なくとも正面部および天面部を閉口したフードとを備え、前記フードの正面部側方に空気の流通路となる開口を形成し、前記フードの右側および左側の側部の両方の開口面積の合計が、前記フードの下部の開口面積より大とし、吹き上げの風は前記フードの前記下部より侵入し、前記フードの前記側部の上部より抜ける構成を特徴とした構成としたことにより、強風雨時、風が壁に当たり、下から吹き上げの風が発生しても、フードの下部よりフードの内部に侵入した風は正面部側方の開口より風が抜けるため、開口部を通り、風と共に雨水が室内に浸入するのを低減することにより、住宅材の耐久性が損なわれるのを防止する。また、フードの天面部の奥行寸法を薄くすることができることにより、製品および、製品設置時の建物全体のデザイン性を向上できる。
【００１５】
また、室内の汚染された空気が換気されるときには、本体に設けた開口部からフード内に送られた天面部側方に設けた開口から、外壁面より遠ざかった方向の室外に排出されることとなり、屋外の壁面が汚染されるのを緩和することができる等の作用を有する。
【００１６】
以下、本発明の実施の形態について図１〜図３３を参照しながら説明する。
【００１７】
（実施の形態１）
図１〜図４に示すように、外壁５内に設けられ、室内１と室外２を連通するダクト３に挿入される筒部４と、外壁５に取り付けられ、中央に開口部６を有したフランジ部７とからなる本体８と、本体８に固定され、正面部９および天面部１０を閉口とし、下部１１および側部１２を開口としたフード１３とを設け、屋外フード１４を構成する。
【００１８】
そして、屋外フード１４を外壁５に施工する際には、外壁５に開口された開口部１５にダクト３が差し込まれ、筒部４をダクト３に挿入する。このとき、筒部４の円筒外周部１６に設けられた板バネ１７がダクト３の内壁に係止され、外壁５に屋外フード１４が取着される。
【００１９】
フランジ部７は、図５および図６に示すように、フランジ部７の略中央の開口部６に、筒部４の内径寸法（Ｄ）より大きい内径寸法（Ｃ）の開口を設け、その前面にはガラリ部１８を形成し、外周にはフランジ部７の平面部１９よりフード１３側に突出する筒壁２０を設けるとともに、筒壁２０の下部に水抜穴２１を設ける。開口部６には、その正面に複数本の柱状のガラリ部１８を設ける。
【００２０】
フード１３は、図７に示すように、フード１３の天面部１０から正面部９にかけて下方傾斜となる構成とする。筒部４には、筒部４の内周側で室内側下端２３に止水板２４を設ける。
【００２１】
上記構成において、強風雨時には、風２５は建物の外壁５に当たり、当たった風２５は外壁５の面に沿って上方に吹き上げる風２６が発生する。またその吹き上げの風２６は雨滴２７を伴いフード１３の下部１１より侵入する。フード１３の下部１１より侵入した吹き上げの風２６は、フード１３の正面部９とフランジ部７との間であるフード１３の内部２８を通る。このとき、フード１３の右側および左側の側部１２の両方の開口面積の合計が、フード１３の下部１１の開口面積よりも面積が大となるため、つまり、風の流入面積に対して排出面積の方が大となるため、吹き上げの風２６がフード１３の下部１１より侵入しても、フード１３の天面部１０に衝突せず左右に分かれ、フード１３の側部１２の上部から風が抜ける。これにより、雨滴２７を伴った吹き上げの風２６はフード１３の下部１１より侵入してもスムーズにフード１３の側部１２の上部より抜けるため、フランジ部７の開口部６から筒部４に侵入する外風を減少することができる。そのため、フランジ部７の開口部６から入る雨滴２７の侵入を防止でき、室内１への水の侵入を防止できることとなる。
【００２２】
また、上から雨が降ってきた場合でも、フード１３の天面部１０に落ちた雨滴２７はフード１３の正面部９をつたって流れるため、フード１３の内部２８に水が回り込むことがなく、開口部６から室内１へ侵入する雨滴２７を防止できる。
【００２３】
また、下からの吹き上げの風２６によってフランジ部７の開口部６のガラリ部１８に付着した雨滴２７は、ガラリ部１８をつたって筒壁２０の内周面に沿って下側に流れ、筒壁２０の下部の水抜穴２１より排出される。また、筒壁２０の内周面に滴れた雨滴２７は、筒壁２０の内径寸法（Ｃ）が筒部４の内径寸法（Ｄ）より大であるため筒部４の内周面３０にさかのぼって侵入することはないため、雨水を室内１へ侵入するのを防止できる。
【００２４】
また、雨滴２７を伴った下からの吹き上げの風２６によってガラリ部１８に付着した雨滴２７は、柱状のガラリ部１８に沿って下に流れ、筒壁２０の内周面に落ち、水抜穴２１より排出される。このとき柱状のガラリ部１８に付着した雨滴２７は、その自重によりガラリ部１８の途中で止まることがないため、風が吹いても雨水が室内１へ侵入するのを防止できる。
【００２５】
また、上から雨が降ってきた場合、雨滴２７はおもにフード１３の天面部１０に落ちる。そして、フード１３の天面部１０に落ちた雨滴２７は、天面部１０から正面部９にかけて傾斜しているため、傾斜に沿って鉛直に下方に滴下する。そのため天面部１０に付着した雨滴２７は、フード１３の反本体側の表面上を流れ、フード１３の正面部９に流れる。そして、フード１３の正面部９に流れた雨滴２７は、フード１３の下端２９よりフード１３から離れ、落下する。このように、雨が降ったとき、フード１３に落ちた雨滴２７は、フード１３の反本体側の表面上のみを流れ、フード１３の側部１２からフード１３の内部２８に水が回り込むことがなく、フランジ部７の開口部６から室内１へ侵入する雨滴２７を防止できる。
【００２６】
また、吹き上げの風２６によって筒部４にまで侵入した雨滴２７は、筒部４の内周面３０に沿って下方に滴れ、筒部４の内周面３０の下端に溜まる。このとき、筒部４の内部で室外２から室内１の方向へ向かう風３１が発生したとき、筒部４の内周面３０の下端に溜まった雨滴２７は室内１の方向へ流される。雨滴２７が筒部４の室内側下端２３に到達したとき、止水板２４によって遮られ、さらに室内１方向に流されるのを防止する。
【００２７】
このように本発明の実施の形態１の屋外フードによれば、室内１と室外２を連通するダクト３に挿入される筒部４と、外壁５に取付けられ、中央に開口部６を有したフランジ部７とからなる本体８と、本体８に固定され、正面部９および天面部１０を閉口とし、下部１１および側部１２を開口したフード１３とからなる屋外フード１４の構成としたので、雨滴２７を伴った吹き上げの風２６はフードの下部１１より侵入してもスムーズにフード１３の側部１２の上方より抜けるため、開口部６を通り、風と共に雨水が室内１に侵入するのを低減することにより、住宅材の耐久性が損なわれるのを防止することができる。
【００２８】
また、上から雨が降ってきた場合でも、フード１３の天面部１０に落ちた雨滴２７はフード１３の内部２８に水が回り込むことがないため、フード１３の天面部１０の奥行寸法を薄くすることができることにより、製品の奥行寸法を薄くすることができ、製品および、製品設置時の建物全体のデザイン性を向上できる。
【００２９】
また、下からの吹き上げの風２６によって、ガラリ部１８に付着した雨滴２７は、筒壁２０の内周面に沿って下側に流れ、筒壁２０の下端の水抜穴２１より排出される。また、筒壁２０の内周面に滴れた雨滴２７は、筒部４の内周面３０にさかのぼって侵入することはないため、雨水が室内１に侵入するのを低減することにより、住宅材の耐久性が損なわれるのを防止することができる。
【００３０】
また、雨滴２７を伴った下からの吹き上げの風２６によってガラリ部１８に付着した雨滴２７は、柱状のガラリ部１８に沿って下に流れ、その自重により途中で止まることがないため、風が吹いても雨水が室内１へ侵入するのを防止でき、住宅材の耐久性が損なわれるのを防止することができる。
【００３１】
また、フード１３の天面部１０に落ちた雨滴２７は傾斜に沿って鉛直に下方に滴下するため、フード１３に落ちた雨滴２７は、フード１３の反本体側の表面上のみを流れ、フード１３の側部１２からフード１３の内部２８に水が回り込むことがなく、フランジ部７の開口部６から室内１へ侵入する雨滴２７を防止でき、住宅材の耐久性が損なわれるのを防止することができる。
【００３２】
また、吹き上げの風２６によって筒部４にまで侵入した雨滴２７は、室外２から室内１の方向へ向かう風３１が発生したとき、筒部４の内周面３０の下端に溜まった雨滴２７は、室内１の方向へ流されるが、雨滴２７が筒部４の室内側下端２３に到達したとき、止水板２４によって遮られ、さらに室内１の方向に流されるのを防止することができる。
【００３３】
（実施の形態２）
図８および図９に示すように、フランジ部７の開口部６に有した筒壁２０の下部の水抜穴２１の下方に、下端を開口した筒状の水抜穴ガイド３２を設けた構成とする。
【００３４】
上記構成において、屋外フードが外壁５に取着された状態で、下からの吹き上げの風２６によってガラリ部１８に付着した雨滴２７はガラリ部１８をつたって筒壁２０の内周面に沿って下側に流れ、筒壁２０の下部の水抜穴２１より抜ける。水抜穴２１より落ちた雨滴２７は、水抜穴ガイド３２の中を通り水抜穴ガイド３２の下端３３より滴下し排出される。このとき、下からの吹き上げの風２６が吹いても水抜穴ガイド３２の内部を通っている雨滴２７は吹き上げの風２６と直接接触することがないので、雨滴２６が上方に押し戻されることがない。
【００３５】
このように本発明の実施の形態２の屋外フードによれば、筒壁２０の内周面に溜まった雨滴２７が排出されるとき、下からの吹き上げの風２６が吹いても雨滴２７は、水抜穴ガイド３２を通り、直接下からの吹き上げの風２６に接触しないため、排出された雨滴２７が上方に押しもどされることがないので、雨水が室内１へ侵入するのを防止でき、住宅材の耐久性が損なわれるのを防止することができる。
【００３６】
（実施の形態３）
図１０および図１１に示すように、筒部４の内周側下面３４に一端を位置させ、他端を水抜穴２１の上方に位置させるとともに、その幅寸法（Ｅ）を筒壁２０の水抜穴２１の幅寸法（Ｆ）より幅広に形成する逆流防止板３５を設けた構成とする。
【００３７】
上記構成において、屋外フードが外壁５に取着された状態で、下からの吹き上げの風２６によってガラリ部１８に付着した雨滴２７は、ガラリ部１８をつたって筒壁２０の内周面に沿って下側に流れ、筒壁２０の下端の水抜穴２１より抜ける。しかし、強風時においては、水抜穴２１より落ちた雨滴２７は下からの吹き上げの風２６と接触し、上方へ押し戻されてしまう。このとき、押し戻された雨滴２７は逆流防止板３５の下面にあたり、それより上方に押し戻されないため、筒部４の内部に雨滴２７は侵入できないこととなる。
【００３８】
このように本発明の実施の形態３の屋外フードによれば、強風時、筒壁２０の下部の水抜穴２１から抜けた雨滴２７が下からの吹き上げの風２６により再び水抜穴２１を通るが、逆流防止板３５によって筒部４の内部へ押し戻されることがないので、雨水が室内１へ侵入するのを防止でき、住宅材の耐久性が損なわれるのを防止することができる。
【００３９】
（実施の形態４）
図１２に示すように、フード１３ａの側部１２ａの左右上端にサイドカバー３６を設けた構成とする。
【００４０】
上記構成において、降雨時、フード１３ａの天面部１０に落ちた雨滴２７はフード１３ａの正面部９および、サイドカバー３６へつたって流れる。フード１３ａの天面部１０よりフード１３ａの正面部９につたった雨滴２７は、フード１３ａの下端２９より下に落ちる。フード１３ａの天面部１０よりサイドカバー３６につたった雨滴２７はサイドカバー３６の下端まで流れると、サイドカバー３６の下縁３７をつたって、フード１３ａの正面部９に流れる。そしてフード１３ａの正面部９に流れた雨滴２７はフード１３ａの下端２９より下に落ちる。
【００４１】
このとき、フード１３ａの天面部１０に落ちた雨滴２７は必ずフード１３ａの正面部９に流れるので、フード１３の内部２８に流れることはなく、したがって開口部６を通り室内１へ雨水が侵入することがない。
【００４２】
このように本発明の実施の形態４の屋外フードによれば、フード１３ａの天面部１０に落ちた雨滴２７はサイドカバー３６の下縁３７をつたってフード１３ａの正面部９に流れるので、フード１３ａの内部２８へ雨滴２７が侵入することなく、したがって開口部６を通り室内１へ雨水が侵入するのを防止でき、住宅材の耐久性が損なわれるのを防止することができる。
【００４３】
（実施の形態５）
図１３に示すように、フード１３ｂの天面部１０ａの左右両端部３８および、正面部９ａの左右両端部３９に突出した突起４０を設けた構成とする。
【００４４】
上記構成において、フード１３ｂの天面部１０ａに落ちた雨滴２７は正面部９ａおよび天面１０ａの左右両端部３８の方へ流れる。フード１３ｂの正面部９ａに流れた雨滴２７はフード１３ｂの正面部９ａの任意の下方向に流れるが、雨滴２７がフード１３ｂの正面部９ａの左右両端部３９の方へ流れても突起４０に当たり、突起４０に沿って下方へ流れ、フード１３ｂの下端２９より落ちる。また、雨滴２７がフード１３ｂの天面部１０ａから左右横端部３９の方に流れても突起４０に当たり、突起４０に沿って下方へ流れ、フード１３ｂの下端２９より落ちる。
【００４５】
このとき、雨滴２７は突起４０に当たり、フード１３ｂの内部２８の方へ乗り越えることがないので、開口部６を通り室内へ雨水が侵入することがない。
【００４６】
このように本発明の実施の形態５の屋外フードによれば、フード１３ｂの天面部１０ａに落ちた雨滴２７は、フード１３ｂの天面部１０ａの左右両端部３８およびフード１３ｂの正面部９ａの左右両端部３９に流れても突起４０を乗り越えることなく下方へ沿って流れるので、フード１３ｂの内部２８へ侵入することがないため、開口部６を通り室内１へ雨水が侵入するのを防止でき、住宅材の耐久性が損なわれるのを防止することができる。
【００４７】
（実施の形態６）
図１４および図１５に示すように、本体８ａおよびフード１３ｃの表面に微細な凹凸４１を設けた構成とする。
【００４８】
上記構成において、降雨時は、本体８ａおよびフード１３ｃなどの表面に雨滴２７が付着する。例えば、本体８ａのガラリ部１８に付着した場合、その雨滴２７は微細な凹凸４１によって、雨滴２７と付着した表面との接触角（Ｇ）が大きくなり、雨滴２７が製品表面と接触している面積が大きくなる。一般的に、雨が物体の表面に付着した際には、雨滴２７は雨自身の表面張力の作用により物体の表面上で球状になる。表面に付着した雨滴２７は、表面との接触角が小さくなり、風が吹いたときにはその接触角のすきまに風が入り込み、その風が表面から雨をはじき飛ばしてしまう。本発明では、微細な凹凸４１に付着した雨滴２７は、凹凸によって雨滴２７の表面張力が弱まり球状をなさず、ぬれた状態となる。このため、ガラリ部１８などの表面に付着した雨滴２７に下からの吹き上げの風２６が吹いても、雨滴２７と表面との接触角が大きいため、雨滴２７と表面との間にすきまができず、そのすきまに風が入り込まないため、雨滴２７が表面から離れるのを防止できるため、ガラリ部１８などに付着した雨滴２７が下に落ちる前に風によってガラリ部１８から飛ばされ、筒部４を通り、室内１へ雨水が侵入するのを防止できる。
【００４９】
このように本発明の実施の形態６の屋外フードによれば、本体８ａおよび、フード１３ｃの表面の微細な凹凸４１により、表面と雨滴２７との接触角を増大させ、風によって表面から飛ばされるのを防止できるため、室内１へ雨水が侵入するのを防止できるため、住宅材の耐久性が損なわれるのを防止することができる。
【００５０】
（実施の形態７）
図１６に示すように、本体８ｂおよびフード１３ｄの表面に微細な凹凸４２を有した表面処理を施した構成とする。
【００５１】
上記構成において、降雨時は、本体８ｂおよびフード１３ｄの表面に雨滴２７が付着する。例えば、本体８ｂのガラリ部１８に付着した場合、その雨滴２７は、ガラリ部１８の表面に施された微細な凹凸４２によって雨滴２７の表面張力が弱まり、雨滴２７は微細な凹凸４２の表面でぬれた状態となる。ぬれた状態の雨滴は下からの風２６が吹いても、実施の形態６で説明したメカニズムと同様になり、ガラリ部１８に付着した雨滴２７が風によってガラリ部１８から飛ばされ、筒部４を通り、室内１へ雨水が侵入するのを防止できるため、住宅材の耐久性が損なわれるのを防止することができる。
【００５２】
このように本発明の実施の形態７の屋外フードによれば、本体８ｂおよび、フード１３ｄの表面に微細な凹凸４２を有した表面処理を施したことにより、表面と雨滴２７との接触角を増大させ、風によって表面から飛ばされるのを防止できるため、室内１へ雨水が侵入するのを防止できるため、住宅材の耐久性が損なわれるのを防止することができる。
【００５３】
（実施の形態８）
図１７および図１８に示すように、筒部４ａの内径寸法（Ｊ）が室内１側から室外２側にかけて拡大する筒部４ａと、筒部４ａの内周面３０に室内１側とフード１３の正面部９の方向、および筒部４ａの円周方向４４を開口としたドーム状の水ガイド４５とを設けた構成とする。
【００５４】
上記構成において、開口部６から侵入した雨滴２７が筒部４ａ内に付着した場合、筒部４ａの内周面３０Ａに沿って下方に流れ、ドーム状の水ガイド４５の下を潜る。そして、雨滴２７は筒部４ａの内径寸法（Ｊ）が室外２側に向かうにつれて拡大しているため、下面の傾斜に沿って室外２側に流れ、ドーム状の水ガイド４５の室外側開口部４６より排出される。このとき、筒部４ａの内部で室外２から室内１の方向へ向かう風３３が発生したときでもドーム状の水ガイド４５の中を潜った雨滴２７は、水ガイド４５によって防護され風３３と直接接触することがないため、筒部４ａの傾斜に沿って室外２の方向へ流れ、逆流することはない。
【００５５】
このように本発明の実施の形態８の屋外フードによれば、強風雨時、筒部４ａ内に付着した雨滴２７は、筒部４ａの傾斜に沿いながらドーム状の水ガイド４５の中を潜って排出され、室外２から室内１に向かう風３３が発生しても、直接に接することがないため、雨滴２７が室内１の方向に流されるのを防止できるため、室内１へ雨水が侵入するのを防止でき、住宅材の耐久性が損なわれるのを防止することができる。
【００５６】
（実施の形態９）
図１９および図２０に示すように、本体８ｃの開口部の両横４７に本体８ｃからフード１３の正面部９の方向に向けて外方へ拡張する整流板４８を設けた構成とする。
【００５７】
上記構成において、屋外フードが外壁５に取着され、室内１側に換気扇４９が設置された場合では、換気扇４９を運転すると、室内１の空気は筒部４を通り開口部６より排出され、フード１３の正面部９の内側に衝突する。フード１３の正面部９の内側に衝突した空気は反射され整流板４８に当たり、整流板４８に当たった空気は整流板４８に沿って室外２へ流れ、フード１３の側部１２から室外２に排出される。この時、フード１３の側部１２から排出された空気は外壁５に対し整流板４８の角度に相当する角度で室外へ排出されるので、フード１３の側部１２から出た空気は外壁５の方向に向かって流れることはない。
【００５８】
このとき、室内１の空気が汚れているときには、その空気が接触した部分に空気の汚れが付着し、汚れてしまう。そのため、室内１の汚れた空気は、筒部４を通ってフード１３の正面部９の内側に当たるが、フード１３の正面部９より反射された空気は整流板４８に沿って室外２へ流される。この流れにおいて、汚れた空気が接触した部分、筒部４およびフード１３の正面部９の内側および整流板４８は汚れた空気の汚れが付着する。しかし、フード１３の側部１２から室外２の方向に排出された汚れた空気は、整流板４８に沿って流れ、外壁５の方向に向かって流れることがないので、フード１３の側部１２より外方の外壁５の表面に汚れを付着させることはない。外壁を屋外フードの正面から見た場合でも、室内１の汚れた空気によって汚される部分は屋外フードの内部のみでフード１３の正面部９および、外壁５は汚れていないので、建物を正面から見たとき、建物自体の美観を損なうことがない。
【００５９】
また、強風雨時、フード１３の側部１２から雨滴２７が入りこんでも整流板４８によって雨滴２７の侵入が防げるので、フード１３の側部１２から侵入する雨滴２７が直接、開口部６に水が侵入するのを防止できる。
【００６０】
また、図２１に示すように、整流板４８ａを本体と一体に形成してもその効果に差異はない。
【００６１】
このように本発明の実施の形態９の屋外フードによれば、室内１の汚れた空気がフード１３に当たり反射されても、整流板４８に沿って、室外２方向に流れるので、汚れた空気が外壁５に付着し壁面を汚すのを防止でき、建物の美観を損なうことを防止できる。また、強風雨時、フード１３の側部１２から雨滴２７が入りこんでも整流板４８によって侵入を防げるので、フード１３の側部１２から侵入する雨滴２７が直接、開口部６に侵入し、室内１へ雨水が侵入するのを防止でき、住宅材の耐久性が損なわれるのを防止することができる。
【００６２】
（実施の形態１０）
図２２および図２３に示すように、フード１３ｅの正面部９ｂの室内１側に本体８の方向に突出し、空気の流れを案内する凸部５１を設け、室内空気が平面５２にそって室外２へ排出される構成とする。
【００６３】
上記構成において、屋外フードが外壁５に取着され、室内１に換気扇４９が設置された場合では、換気扇４９を運転すると、室内１の空気は筒部４を通り開口部６より排出され、フード１３ｅの正面部９ｂの内側に衝突する。正面部９ｂの内側に衝突した空気は平面５２に沿って室外２の方向へ整流され、フード１３ｅの側部１２から室外２へ排出される。またこの時、室内１の空気が汚れているときには、その汚れた空気は筒部４を通って正面部９ｂの内側に当たるが、平面５２に沿って室外２の方向に流れるので、汚れた空気であっても、その汚れが外壁５に付着することがない。
【００６４】
このように本発明の実施の形態１０の屋外フードによれば、室内１の汚れた空気がフード１３ｅの内側に当たり平面５２に沿って室外２の方向に流れるので、汚れた空気が外壁５に付着し壁面を汚すのを防止でき、建物の美観を損なうことを防止できる。
【００６５】
（実施の形態１１）
図２４および図２５に示すように、フード１３ｆの正面部９ｃの室内１側に空気の流れを案内する球面状の凸部５１ａを有する構成とする。
【００６６】
上記構成において、屋外フードが外壁５に取着され、室内側１に換気扇４９が設置された場合では、換気扇４９を運転すると、室内１の空気は筒部４を通り開口部６より排出され、フード１３ｆの正面部９ｃの内側に衝突する。フード１３ｆの正面部９ｃの内側に衝突した空気は凸部５１ａの球面に沿って室外２の方向へ整流され、フード１３ｆの側部１２から室外２へ排出される。またこの時、室内１の空気が汚れているときには、その汚れた空気は筒部４を通って正面部９ｃの内側に当たるが、球面に沿って室外２の方向に流れるので、汚れた空気であっても、その汚れが外壁５に付着することがない。
【００６７】
このように本発明の実施の形態１１の屋外フードによれば、室内１の汚れた空気がフード１３ｆに当たり凸部５１ａの球面に沿って室外２の方向に流れるので、汚れた空気が外壁５に付着し壁面を汚すのを防止でき、建物の美観を損なうことを防止できる。
【００６８】
（実施の形態１２）
図２６に示すように、フード１３ｇの正面部９の室内１側に外方に向けて傾斜する受水部５４と、先端に正面部９と略平行の返し部５５とを形成した水捕集板５６を設けた構成とする。
【００６９】
上記構成において、強風時、雨滴２７がフード１３ｇの側部１２から侵入した場合、雨滴２７はおもに水捕集板５６の受水部５４に当たる。受水部５４に当たった雨滴２７は受水部５４の表面に付着し、その自重により下方に滴れる。このとき、フード１３ｇの側部１２から外壁５に向かう風５７が吹いても受水部５４に付着した雨滴２７は、返し部５５を越えて水捕集板５６から飛ばされることなく下方に落ちる。
【００７０】
このように本発明の実施の形態１２の屋外フードによれば、雨滴２７がフード１３ｇの側部１２から侵入した場合でも、雨滴２７は水捕集板５６によって捕集され、またフード１３ｇの側部１２から風が吹いても水捕集板５６から雨滴２７が飛ばされることがないので、室内１へ雨水が侵入するのを防止でき、住宅材の耐久性が損なわれるのを防止することができる。
【００７１】
（実施の形態１３）
図２７に示すように、フード１３ｈの天面部１０ｂにその中央部分が上方向に凸となる曲面５８を形成した構成とする。
【００７２】
上記構成において、雨が降ったとき、雨滴２７は主にフード１３ｈの天面部１０ｂに当たる。フード１３ｈの天面部１０ｂに当たった雨滴２７は通常、フードの天面部が平板の状態であれば、その部分の剛性が弱いため、雨滴２７がフードの天面に当たると衝突音としてポコポコと音が発生し、室内１側に反響してしまうが、フード１３ｈの天面部１０ｂの中央部分が上方向に凸となる曲面５８であるため、フード１３ｈの天面部１０ｂの剛性が強くなり、雨滴２７が天面部に当たってもポコポコ音を発生することがない。
【００７３】
このように本発明の実施の形態１３の屋外フードによれば、天面部１０ｂの剛性が強いため、雨滴２７の衝突によるポコポコ音を発生することがないので、室内１で雨によって生ずる不快な音を発生するのを防止できる。
【００７４】
（実施の形態１４）
図２８に示すように、本体８ｄのガラリ部１８の外周に、軸５９を設け、軸５９に軸支された押え板６０を設け、ガラリ部１８の前面と押え板６０によって網６１が挟持される構成とする。
【００７５】
上記構成において、換気扇（図示せず）の運転等により網６１が目詰まりした際には、押え板６０が網６１から外れるように軸５９を中心に回転させ、網６１を本体８ｄより外し、網６１を掃除する。また、網６１を取り付けるときには、開口したフードの側部またはフードの下部より網６１を挿入し、ガラリ部１８の前面にかぶせ、押え板６０を網６１の外周のフランジ部６２の上に乗るように回転させて、網６１を本体８ｄに固定する。
【００７６】
このように本発明の実施の形態１４の屋外フードによれば、押え板５９の回転により網６１が着脱自在となるので、換気扇の給気運転時等で網に埃が付き目詰まりが起こっても、容易に網が着脱できる。
【００７７】
（実施の形態１５）
図２９および図３０に示すように、外壁５に取り付けられる略中央に開口部６を有した本体８ｅに固定され、正面部９ｄ、および天面部１０ｃと側壁部６３により形成される側部１２ｂを閉口し、下部１１を開口したフード１３ｉを設け、フード１３ｉの正面部９ｄと側部１２ｂを形成する側壁部６３との間に両者を連結する形状の傾斜面６４に空気の流通する開口６５を設けた構成とする。
【００７８】
上記構成において、屋外フードが外壁５に取着され室内１側に換気扇４９が設置された状態で換気扇４９を運転すると、室内１の空気は筒部４を通り開口部６よりフード１３ｉ内に排出され、フード１３ｉの正面部９ｄの内側に衝突し、フード１３ｉの正面部９ｄの内側に衝突した空気は広がり、正面部９ｄの側方に設けた開口６５より室外２に排出される。このとき、開口６５は側壁部６３により外壁５より遠ざかった位置の正面部９ｄの側方に設けられているため、室外２に排出される排出空気は外壁５より離れた方向に排出されることとなる。
【００７９】
また、強風時にフード１３ｉの下部１１の開口からフード１３ｉ内に浸入した風雨は開口６５より放出され、本体８ｅの開口部６より室内１側に雨滴が浸入することがなくなる。
【００８０】
このように本発明の実施の形態１５の屋外フードによれば外壁５に取り付けられる略中央に開口部６を有した本体８ｅに固定されて少なくとも正面部９ｄおよび天面部１０ｃを開口したフード１３ｉを設け、フード１３ｉの正面部９ｄ側方に空気の流通路となる開口６５を形成したので、雨水が住宅内に浸入するのが防止でき、住宅材の耐久性が損なわれるのを防止でき、また、製品の薄型化が図られデザイン性が向上でき、また、換気流によって外壁５が汚染されるのを緩和することができる。
【００８１】
また、正面部９ｄおよび天面部１０ｃと側部１２ｂを閉口して形成フード１３ｉと、このフード１３ｉの正面部９ｄと側部１２ｂに設けられる側壁部６３との間の傾斜面６４に空気の流通する開口６５を形成したので、汚染された換気流は側壁部６３により外壁５面に放出されることがなくなり、開口６５からは外壁５から遠ざかる方向に排出されるので、外壁５の汚染されることが防止できる。
【００８２】
（実施の形態１６）
図３１に示すように、空気の流通する開口６５ａを形成する側壁部６３ａおよび正面部９ｅをＲ面またはＣ面形状に形成し、側壁部６３ａの開口６５ａ側端部より正面部９ｅの両端部が内側になるように設け、正面部９ｅの外面に沿い換気流が流れやすいようにフード１３ｊを形成し構成する。
【００８３】
上記構成において、換気扇４９が運転されると、室内１の空気は筒部４を通り開口部６よりフード１３ｊ内に排出され、フード１３ｊを形成する側壁部６３ａおよび正面部９ｅのＲ面またはＣ面形状に案内され、開口６５ａより正面部９ｅのＲ面またはＣ面形状に案内されて開口６５ａより正面部９ｅの外面の中央部に向かい室外２に排出される。
【００８４】
このように本発明の実施の形態１６の屋外フードによれば、空気の流通する開口６５ａを形成する側壁部６３ａおよび正面部９ｅをＲ面またはＣ面形状に形成したので、汚染された換気流は側壁部６３ａおよび正面部９ｅのＲ面またはＣ面に沿い開口６５ａに送られ、開口６５ａより正面部９ｅの外面に沿うように正面部９ｅの中央に向かい排出されて外壁５の汚染されることが防止できる。
【００８５】
（実施の形態１７）
図３２および図３３に示すように、空気の流通する開口６５ｂを形成する側壁部６３ｂおよび正面部９ｆにおける側壁部６３ｂの端部に正面部９ｆの中央部に向かう突片６６および正面部９ｆの側方部に突片６６により正面部９ｆに向かい誘導される空気流をスムーズに正面部９ｆの中央部に向かい案内する傾斜面を有したガイド板６７を設け、フード１３ｋを構成する。
【００８６】
上記構成において、換気扇４９が運転されると、室内１の空気は筒部４を通り開口部６よりフード１３ｋ内に排出され、フード１３ｋを形成する側壁部６３ｂの突片６６により正面部９ｆの中央部に向かい流動し、流動する空気は正面部９ｆの側方に設けたガイド板６７により案内されて強制的に正面部９ｆの中央部に向かい室外２に排出される。
【００８７】
このように本発明の実施の形態１７の屋外フードによれば、空気の流通する開口６５ｂに、排出空気を正面部９ｆの中央部側に案内するガイド板６７を設けたので、排出空気は強制的に正面部９ｆの中央側に向かい排出され、外壁５が汚染されることが防止できる。
【００８８】
なお、実施の形態１７では、ガイド板６７を正面部９ｆと一体的に設けたがガイド板は別部材で形成しても良いことはいうまでもない。
【００８９】
【発明の効果】
以上のように、請求項１および２に記載の発明によれば、住宅材の耐久性が損なわれるのを防止でき、また、製品の薄型化によるデザイン性の向上を図ることができ、また、外壁の汚染されるのを緩和することができる。
【００９０】
また、請求項３に記載の発明によれば、住宅材の耐久性が損なわれるのを防止し、製品および製品設置時の建物全体のデザイン性を向上することができる。
【００９１】
また、請求項４〜６に記載の発明によれば、住宅材の耐久性が損なわれるのを防止することができる。
【００９２】
また、請求項７に記載の発明によれば、筒部にまで浸入してきた雨滴が室内方向に流されるのを防止することができる。
【００９３】
また、請求項８〜１５に記載の発明によれば、雨水が室内へ浸入するのを防止でき、住宅材の耐久性が損なわれるのを防止することができる。
【００９４】
また、請求項１６および１７に記載の発明によれば、壁面を汚すのを防止でき、建物の美観が損なわれることを防止できる。
【００９５】
また、請求項１８に記載の発明によれば、室内へ雨水が浸入するのを防止でき、住宅材の耐久性が損なわれるのを防止することができる。
【００９６】
また、請求項１９に記載の発明によれば、雨によって生ずる不快な音を発生するのを防止できる。
【００９７】
また、請求項２０に記載の発明によれば、容易に網が着脱できる。
【００９８】
また、請求項２１および２２に記載の発明によれば、換気流による外壁の汚染を緩和することができる。
【図面の簡単な説明】
【図１】本発明の実施の形態１の屋外フードの構成を示す斜視図
【図２】同屋外フードの施工状態を示す斜視図
【図３】同屋外フードに吹きつける風および雨の流れを示す断面図
【図４】同屋外フードに吹きつける風の流れを示す斜視図
【図５】同屋外フードの筒壁および水抜穴を示す断面図
【図６】同屋外フードの筒壁、水抜穴、およびガラリ部を示す斜視図
【図７】同屋外フードの止水板の構成を示す斜視図
【図８】本発明の実施の形態２の屋外フードの構成を示す斜視図
【図９】同屋外フードに吹きつける風および雨の流れを示す断面図
【図１０】本発明の実施の形態３の屋外フードの構成を示す斜視図
【図１１】同屋外フードに吹きつける風および雨の流れを示す断面図
【図１２】本発明の実施の形態４の屋外フードの構成を示す斜視図
【図１３】本発明の実施の形態５の屋外フードの構成を示す斜視図
【図１４】本発明の実施の形態６の屋外フードの構成を示す断面図
【図１５】同屋外フードのガラリ部の雨滴の状態を示す部分拡大断面図
【図１６】本発明の実施の形態７の屋外フードの構成を示す断面図
【図１７】本発明の実施の形態８の屋外フードの構成を示す断面図
【図１８】同屋外フードの構成を示す斜視図
【図１９】本発明の実施の形態９の屋外フードの構成を示す斜視図
【図２０】同屋外フードの風の流れを示す断面図
【図２１】同屋外フードの構成を示す斜視図
【図２２】本発明の実施の形態１０の屋外フードの構成を示す斜視図
【図２３】同屋外フードの風の流れを示す断面図
【図２４】本発明の実施の形態１１の屋外フードの構成を示す斜視図
【図２５】同屋外フードの風の流れを示す断面図
【図２６】本発明の実施の形態１２の屋外フードの構成を示す断面図
【図２７】本発明の実施の形態１３の屋外フードの構成を示す斜視図
【図２８】本発明の実施の形態１４の屋外フードの本体の構成を示す正面図
【図２９】本発明の実施の形態１５の屋外フードの風の流れを示す断面図
【図３０】同屋外フードの斜視図
【図３１】本発明の実施の形態１６の屋外フードの風の流れを示す断面図
【図３２】本発明の実施の形態１７の屋外フードの風の流れを示す断面図
【図３３】同屋外フードの斜視図
【図３４】従来の屋外フードの構成を示す斜視図
【図３５】同屋外フードの風および雨の流れを示す断面図
【図３６】従来の他の屋外フードの構成を示す斜視図
【図３７】同屋外フードの風および雨の流れを示す断面図
【符号の説明】
１室内
２室外
３ダクト
４筒部
４ａ筒部
５外壁
６開口部
７フランジ部
８本体
８ａ本体
８ｂ本体
８ｃ本体
８ｄ本体
８ｅ本体
９正面部
９ａ正面部
９ｂ正面部
９ｃ正面部
９ｄ正面部
９ｅ正面部
９ｆ正面部
１０天面部
１０ａ天面部
１０ｂ天面部
１０ｃ天面部
１１下部
１２側部
１２ａ側部
１２ｂ側部
１３フード
１３ａフード
１３ｂフード
１３ｃフード
１３ｄフード
１３ｅフード
１３ｆフード
１３ｇフード
１３ｈフード
１３ｉフード
１３ｊフード
１３ｋフード
１４屋外フード
１８ガラリ部
２０筒壁
２１水抜穴
２３室内側下端
２４止水板
３２水抜穴ガイド
３４内周面下端
３５逆流防止板
３６サイドカバー
３８左右両端部
３９左右両端部
４０突起
４１微細な凹凸
４２微細な凹凸
４４円周方向
４５水ガイド
４７開口部の両横
４８整流板
４８ａ整流板
５１凸部
５１ａ凸部
５４受水部
５５返し部
５６水捕集板
５８曲面
６１網
６５開口
６５ａ開口
６５ｂ開口
６７ガイド板
Ｃ内径寸法
Ｄ内径寸法
Ｅ幅寸法
Ｆ幅寸法
Ｊ内径寸法[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an outdoor hood that is attached to the outdoor side of a ventilation port to ventilate a building.
[0002]
[Prior art]
In recent years, as a demand for a house, a demand for durability of the house is particularly increased. Among them, in ventilation openings such as ventilation fans, rain can enter the room through the ventilation openings and damage the durability of indoor housing materials. Dirt is a problem.
[0003]
Conventionally, an outdoor hood with a hood has been installed on the outdoor side of the ventilation port to prevent rain from entering, and this type of outdoor hood is closed in the left and right direction to prevent rain from entering and upward. It is known that the mouth is closed or the upper part is opened.
[0004]
The configuration will be described below with reference to FIGS.
[0005]
As shown in FIGS. 34 and 35, a duct 103 is inserted into an opening 102 opened in a wall 101, and a main body 107 having a cylindrical tube portion 104 and an opening 105 in the center is fixed. The outdoor hood 113 is configured by fixing the hood 112 having the front portion 108, the top surface portion 109, and the hood side surface portion 110 as a closed mouth and having the hood lower surface portion as an opening. When constructing the outdoor hood 113, the cylindrical portion 104 is inserted so as to be inscribed in the duct 103 in the wall 101, and is attached to the wall 101 by a leaf spring 114 fixed to the cylindrical portion 104.
[0006]
As another outdoor hood, as shown in FIGS. 36 and 37, the hood upper surface portion 115 is inclined downwardly from the wall 101 toward the front surface portion 108 of the hood 111, and a part of the hood upper surface portion 115 is partially disposed. The outdoor hood 117 is configured by providing a top cover 116 having an open length.
[0007]
[Problems to be solved by the invention]
In such a conventional outdoor hood, in the former case, when it rains in the outdoor 118, if the wind is in a weak wind state, the raindrop 119 falls from above, so the top surface portion 109 and the hood side surface portion of the hood 112 110 closes to prevent rain from entering the interior 120 through the opening 105, but when it is accompanied by a strong wind 121 during the rain, the wind hits the outdoor 118 side of the wall 101 and generates a wind 122 blowing from below. The wind enters from the bottom surface 111 of the hood. At this time, since the wind also sucks raindrops 119 at the same time, rain enters the inside of the hood 123. And since the wind with raindrops 119 entering the hood 123 has only the opening 105, the wind passes through the opening 105 and enters the indoor side 120, contaminates the housing material, and impairs the durability of the house. There was a problem.
[0008]
Further, when the contaminated air in the room 120 is ventilated to the outside 118, the room air ventilated by a ventilation fan (not shown) passes through the duct 103 and enters the inside of the hood 123 through the opening 105 of the cylindrical portion 104. It is discharged from the outdoor 118 through the lower surface portion 111. At this time, there was a problem that a part of the contaminated air discharged from the hood lower surface portion 111 to the outdoor 118 contacts the wall 101 and contaminates the wall 101.
[0009]
Further, in the outdoor hood 117 in the latter, the wind 122 blown from the bottom accompanied by rain passes through the inside of the hood 123 during heavy winds, and a part of the wind escapes from the opening 124 of the upper surface portion 115 of the hood. Since it hits the top cover 116 of the upper surface portion 115 of the hood, rebounds downward and collides with the wind 122 blowing up from below, there is no place for the wind, and it flows into the interior 120 through the opening 105. This is due to the ratio of the opening area of the hood lower surface portion 111, which is the area where the wind flows in, and the area of the opening portion 124 of the hood upper surface portion 115, where the wind is discharged, and the discharged area is smaller than the flowing area. This is a phenomenon that occurs. As a result, wind and rain flow into the opening 105.
[0010]
Further, raindrops 119 falling from above flow downward along the top cover 116, but if the length of the eaves projecting to the outdoor side of the top cover 116 is short, the raindrops 119 dripping from the top cover 116 are dropped. Since it is sucked into the opening 105, the eaves of the top cover 116 must be lengthened, and the depth dimension from the wall surface of the outdoor hood 117 increases, so that the design of the building with the product installed on the wall surface There was a problem of compromising.
[0011]
The present invention solves the above-mentioned problems, can prevent the durability of the housing material from being impaired, can improve the design of the product and the entire building at the time of product installation, and the wall surface on the outdoor side by the ventilation flow An object of the present invention is to provide an outdoor hood that can alleviate contamination of food.
[0012]
[Means for Solving the Problems]
The outdoor hood of the present invention includes a main body having an opening at a substantially center attached to the outer wall, and a hood fixed to the main body and having at least a front surface portion and a top surface portion closed. Forming an opening to be an air flow path in the The sum of the opening areas of both the right and left sides of the hood is greater than the opening area of the lower part of the hood; The wind blows up from the hood Said Enter from the bottom of the hood Said The configuration is characterized by a configuration that comes out from the upper part of the side portion.
[0013]
According to the present invention, it is possible to prevent the durability of the housing material from being impaired, improve the design of the product and the entire building at the time of product installation, and reduce the contamination of the wall on the outdoor side due to the ventilation flow. Can provide outdoor hood that can.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes a main body having an opening at a substantially center attached to an outer wall, and a hood fixed to the main body and having at least a front portion and a top surface closed. Form an opening to be an air flow path on the side of the front part, The sum of the opening areas of both the right and left sides of the hood is greater than the opening area of the lower part of the hood; The wind blows up from the hood Said Enter from the bottom of the hood Said By adopting a configuration that allows it to escape from the upper part of the side part, even when wind hits the wall in heavy winds and wind blows from the bottom, the wind that entered the inside of the hood from the bottom of the hood is Since the wind passes through the opening on the side of the section, the durability of the housing material is prevented from being impaired by reducing the intrusion of rainwater along with the wind through the opening. In addition, since the depth dimension of the top surface of the hood can be reduced, the design of the product and the entire building at the time of product installation can be improved.
[0015]
In addition, when contaminated air in the room is ventilated, it is discharged from the opening provided in the main body from the opening provided in the main body to the outside in the direction away from the outer wall surface. Thus, the outdoor wall surface can be prevented from being contaminated.
[0016]
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
[0017]
(Embodiment 1)
As shown in FIGS. 1 to 4, a cylindrical portion 4 provided in the outer wall 5 and inserted into a duct 3 that communicates the room 1 and the outdoor 2, and attached to the outer wall 5, and has an opening 6 in the center. An outdoor hood 14 is configured by providing a main body 8 including a flange portion 7, a hood 13 fixed to the main body 8, a front portion 9 and a top surface portion 10 being closed, and a lower portion 11 and side portions 12 being opened.
[0018]
When constructing the outdoor hood 14 on the outer wall 5, the duct 3 is inserted into the opening 15 opened in the outer wall 5, and the tubular portion 4 is inserted into the duct 3. At this time, the leaf spring 17 provided on the cylindrical outer peripheral portion 16 of the cylindrical portion 4 is locked to the inner wall of the duct 3, and the outdoor hood 14 is attached to the outer wall 5.
[0019]
As shown in FIG. 5 and FIG. 6, the flange portion 7 is provided with an opening having an inner diameter dimension (C) larger than the inner diameter dimension (D) of the cylindrical portion 4 in the opening 6 at the substantially center of the flange section 7. Is formed with a cylindrical portion 18, and a cylindrical wall 20 protruding from the flat portion 19 of the flange portion 7 toward the hood 13 is provided on the outer periphery, and a drain hole 21 is provided at the lower portion of the cylindrical wall 20. The opening 6 is provided with a plurality of columnar louvers 18 on the front surface thereof.
[0020]
As shown in FIG. 7, the hood 13 is configured to be inclined downward from the top surface portion 10 to the front surface portion 9 of the hood 13. The tubular portion 4 is provided with a water stop plate 24 at the indoor side lower end 23 on the inner peripheral side of the tubular portion 4.
[0021]
In the above configuration, during a strong wind and rain, the wind 25 hits the outer wall 5 of the building, and the hit wind 25 generates a wind 26 that blows upward along the surface of the outer wall 5. Further, the blown wind 26 enters from the lower part 11 of the hood 13 with raindrops 27. The blown-up wind 26 that has entered from the lower portion 11 of the hood 13 passes through the inside 28 of the hood 13 between the front portion 9 and the flange portion 7 of the hood 13. At this time, the total opening area of both the right and left side portions 12 of the hood 13 is larger than the opening area of the lower portion 11 of the hood 13, that is, the discharge area relative to the inflow area of the wind. Therefore, even if the blown-up wind 26 enters from the lower portion 11 of the hood 13, it does not collide with the top surface portion 10 of the hood 13 and is divided into right and left, and the wind escapes from the upper portion of the side portion 12 of the hood 13. . As a result, even if wind blown with raindrops 27 enters from the lower part 11 of the hood 13, it smoothly escapes from the upper part of the side part 12 of the hood 13, so that it enters the cylindrical part 4 from the opening 6 of the flange part 7. You can reduce the outside wind. Therefore, the raindrop 27 entering from the opening 6 of the flange portion 7 can be prevented from entering, and water can be prevented from entering the room 1.
[0022]
Even when it rains from above, the raindrops 27 that have fallen on the top surface portion 10 of the hood 13 flow along the front portion 9 of the hood 13, so that water does not flow into the interior 28 of the hood 13, and the opening Raindrops 27 that enter the room 1 from the unit 6 can be prevented.
[0023]
Further, raindrops 27 adhering to the louvered portion 18 of the opening 6 of the flange portion 7 by the wind 26 blown from below flow downward along the inner peripheral surface of the tubular wall 20 through the louvered portion 18. It is discharged from a drain hole 21 at the bottom of the wall 20. Further, the raindrops 27 dripped on the inner peripheral surface of the cylindrical wall 20 are formed on the inner peripheral surface 30 of the cylindrical portion 4 because the inner diameter dimension (C) of the cylindrical wall 20 is larger than the inner diameter dimension (D) of the cylindrical portion 4. Since it does not enter retroactively, it is possible to prevent rainwater from entering the room 1.
[0024]
Further, the raindrop 27 attached to the louver 18 by the wind 26 blown from below accompanied by the raindrop 27 flows down along the columnar louver 18, falls on the inner peripheral surface of the cylindrical wall 20, and drains the hole 21. More discharged. At this time, since the raindrops 27 adhering to the columnar louver 18 do not stop in the middle of the louver 18 due to their own weight, rainwater can be prevented from entering the room 1 even if wind blows.
[0025]
Further, when it rains from above, the raindrops 27 mainly fall on the top surface portion 10 of the hood 13. And since the raindrop 27 which fell on the top | upper surface part 10 of the food | hood 13 inclines from the top | upper surface part 10 to the front part 9, it dripped vertically downward along the inclination. Therefore, the raindrops 27 attached to the top surface portion 10 flow on the surface of the hood 13 on the side opposite to the main body and flow to the front portion 9 of the hood 13. Then, the raindrop 27 that has flowed to the front portion 9 of the hood 13 moves away from the hood 13 from the lower end 29 of the hood 13 and falls. Thus, when it rains, the raindrops 27 that have fallen on the hood 13 flow only on the surface of the hood 13 on the side opposite to the main body, and the water may flow from the side portion 12 of the hood 13 to the inside 28 of the hood 13. The raindrops 27 that enter the room 1 from the opening 6 of the flange portion 7 can be prevented.
[0026]
Further, the raindrops 27 that have penetrated into the cylindrical portion 4 by the blown wind 26 are dripped downward along the inner peripheral surface 30 of the cylindrical portion 4 and accumulate at the lower end of the inner peripheral surface 30 of the cylindrical portion 4. At this time, when a wind 31 is generated from the outdoor 2 toward the room 1 inside the tubular part 4, the raindrops 27 accumulated at the lower end of the inner peripheral surface 30 of the tubular part 4 are caused to flow toward the indoor 1. When the raindrop 27 reaches the lower end 23 on the indoor side of the cylindrical portion 4, the raindrop 27 is blocked by the water stop plate 24 and further prevented from flowing in the direction of the room 1.
[0027]
As described above, according to the outdoor hood of the first embodiment of the present invention, the cylindrical portion 4 inserted into the duct 3 communicating the indoor 1 and the outdoor 2 and the outer wall 5 are attached, and the opening 6 is provided at the center. Since it is configured as an outdoor hood 14 composed of a main body 8 composed of a flange portion 7, a hood 13 fixed to the main body 8, the front portion 9 and the top surface portion 10 being closed, and the lower portion 11 and the side portion 12 being opened. Even if wind blown with raindrops 27 penetrates from the lower part 11 of the hood, it smoothly escapes from above the side part 12 of the hood 13, so that rainwater enters the room 1 along with the wind through the opening 6. By reducing, it can prevent that the durability of a housing material is impaired.
[0028]
Even if it rains from above, the raindrops 27 that have fallen on the top surface portion 10 of the hood 13 do not allow water to enter the interior 28 of the hood 13, so the depth dimension of the top surface portion 10 of the hood 13 is reduced. Since the depth of the product can be reduced, the design of the product and the entire building at the time of product installation can be improved.
[0029]
Further, the raindrops 27 attached to the louver 18 by the wind 26 blown from below flow downward along the inner peripheral surface of the cylindrical wall 20 and are discharged from the drain hole 21 at the lower end of the cylindrical wall 20. Moreover, since the raindrops 27 dripped on the inner peripheral surface of the cylindrical wall 20 do not invade into the inner peripheral surface 30 of the cylindrical portion 4, it is possible to reduce the intrusion of rainwater into the room 1. It is possible to prevent the durability of the material from being impaired.
[0030]
Further, the raindrops 27 attached to the louvered portion 18 by the wind 26 blown from below accompanied by the raindrops 27 flow down along the columnar louvered portion 18 and do not stop halfway due to their own weight, Even if it blows, rainwater can be prevented from entering the room 1 and the durability of the housing material can be prevented from being impaired.
[0031]
Further, since the raindrops 27 that have fallen on the top surface portion 10 of the hood 13 drop vertically downward along the inclination, the raindrops 27 that have fallen on the hood 13 flow only on the surface of the hood 13 on the side opposite to the main body. Water does not flow into the inside 28 of the hood 13 from the side portion 12 of the hood 13, raindrops 27 that enter the room 1 from the opening 6 of the flange portion 7 can be prevented, and the durability of the housing material can be prevented from being impaired. Can do.
[0032]
In addition, the raindrops 27 that have penetrated into the cylindrical portion 4 by the blown-up wind 26 are generated when a wind 31 is generated from the outdoor 2 toward the indoor 1 toward the lower end of the inner peripheral surface 30 of the cylindrical portion 4. The raindrops 27 are blocked by the water stop plate 24 when the raindrops 27 reach the indoor side lower end 23 of the cylindrical portion 4, and can be prevented from flowing further toward the indoor 1.
[0033]
(Embodiment 2)
As shown in FIGS. 8 and 9, a cylindrical drain hole guide 32 having a lower end opened is provided below the drain hole 21 at the bottom of the cylindrical wall 20 provided in the opening 6 of the flange portion 7. .
[0034]
In the above configuration, the raindrops 27 attached to the louvered portion 18 by the wind 26 blown from below with the outdoor hood attached to the outer wall 5 pass along the louvered portion 18 along the inner peripheral surface of the cylindrical wall 20. It flows downward and exits from the drain hole 21 at the bottom of the cylindrical wall 20. The raindrops 27 falling from the drain hole 21 pass through the drain hole guide 32 and are dropped and discharged from the lower end 33 of the drain hole guide 32. At this time, the raindrop 27 passing through the drain hole guide 32 does not come into direct contact with the blown wind 26 even if the blown wind 26 blows from below, so that the raindrop 26 is not pushed back upward. .
[0035]
As described above, according to the outdoor hood of the second embodiment of the present invention, when the raindrops 27 accumulated on the inner peripheral surface of the cylindrical wall 20 are discharged, the raindrops 27 Since it passes through the drainage guide 32 and does not come into direct contact with the wind 26 blown from below, the discharged raindrops 27 are not pushed back upward. It is possible to prevent the durability of the glass from being impaired.
[0036]
(Embodiment 3)
As shown in FIGS. 10 and 11, one end is positioned on the inner peripheral side lower surface 34 of the cylindrical portion 4, the other end is positioned above the drain hole 21, and the width dimension (E) is drained from the cylindrical wall 20. A backflow prevention plate 35 formed wider than the width dimension (F) of the hole 21 is provided.
[0037]
In the above configuration, the raindrops 27 attached to the louvered portion 18 by the wind 26 blown from below with the outdoor hood attached to the outer wall 5 pass along the louvered portion 18 along the inner peripheral surface of the cylindrical wall 20. And flows out from the drain hole 21 at the lower end of the cylindrical wall 20. However, during strong winds, the raindrops 27 falling from the drain holes 21 come into contact with the wind 26 blown from below and are pushed back upward. At this time, the raindrop 27 pushed back hits the lower surface of the backflow prevention plate 35 and is not pushed back further upward, so that the raindrop 27 cannot enter the inside of the cylindrical portion 4.
[0038]
As described above, according to the outdoor hood of the third embodiment of the present invention, the raindrop 27 that has passed through the drain hole 21 at the bottom of the cylindrical wall 20 passes through the drain hole 21 again by the wind 26 blown from below when the wind is strong. Since the backflow prevention plate 35 is not pushed back into the cylindrical portion 4, rainwater can be prevented from entering the room 1 and the durability of the housing material can be prevented from being impaired.
[0039]
(Embodiment 4)
As shown in FIG. 12, it is set as the structure which provided the side cover 36 in the left-right upper end of the side part 12a of the food | hood 13a.
[0040]
In the above configuration, the raindrop 27 that has fallen on the top surface portion 10 of the hood 13a flows to the front surface portion 9 of the hood 13a and the side cover 36 when it rains. The raindrop 27 that has reached the front surface portion 9 of the hood 13a from the top surface portion 10 of the hood 13a falls below the lower end 29 of the hood 13a. When the raindrop 27 that has reached the side cover 36 from the top surface portion 10 of the hood 13a flows to the lower end of the side cover 36, it flows along the lower edge 37 of the side cover 36 and flows to the front portion 9 of the hood 13a. And the raindrop 27 which flowed to the front part 9 of the hood 13a falls below the lower end 29 of the hood 13a.
[0041]
At this time, the raindrops 27 that have fallen on the top surface portion 10 of the hood 13a always flow to the front portion 9 of the hood 13a, and therefore do not flow into the interior 28 of the hood 13, so that rainwater enters the room 1 through the opening 6. There is nothing.
[0042]
As described above, according to the outdoor hood of the fourth embodiment of the present invention, the raindrops 27 that have fallen on the top surface portion 10 of the hood 13a flow to the front portion 9 of the hood 13a through the lower edge 37 of the side cover 36. Raindrops 27 do not enter the interior 28 of 13a. Therefore, it is possible to prevent rainwater from entering the room 1 through the opening 6, and it is possible to prevent the durability of the housing material from being impaired.
[0043]
(Embodiment 5)
As shown in FIG. 13, it is set as the structure which provided the protrusion 40 which protruded in the right-and-left both ends 38 of the top | upper surface part 10a of the food | hood 13b, and the right-and-left both ends 39 of the front part 9a.
[0044]
In the above configuration, the raindrops 27 that have fallen on the top surface portion 10a of the hood 13b flow toward the front surface portion 9a and the left and right end portions 38 of the top surface 10a. The raindrop 27 that has flowed to the front portion 9a of the hood 13b flows in an arbitrary downward direction of the front portion 9a of the hood 13b. However, even if the raindrop 27 flows toward the left and right end portions 39 of the front portion 9a of the hood 13b, , Flows downward along the protrusion 40 and falls from the lower end 29 of the hood 13b. Further, even if the raindrop 27 flows from the top surface portion 10a of the hood 13b toward the left and right lateral end portions 39, it hits the protrusion 40, flows downward along the protrusion 40, and falls from the lower end 29 of the hood 13b.
[0045]
At this time, since the raindrop 27 hits the protrusion 40 and does not climb toward the interior 28 of the hood 13b, rainwater does not enter the room through the opening 6.
[0046]
Thus, according to the outdoor hood of the fifth embodiment of the present invention, the raindrops 27 that have fallen on the top surface portion 10a of the hood 13b are the left and right end portions 38 of the top surface portion 10a of the hood 13b and the left and right sides of the front surface portion 9a of the hood 13b. Even if it flows through both end portions 39, it flows along the lower side without getting over the protrusion 40, so that it does not enter the interior 28 of the hood 13b, so that it is possible to prevent rainwater from entering the room 1 through the opening 6, It is possible to prevent the durability of the housing material from being impaired.
[0047]
(Embodiment 6)
As shown in FIGS. 14 and 15, the surface of the main body 8 a and the hood 13 c is provided with fine irregularities 41.
[0048]
In the above configuration, the raindrops 27 adhere to the surfaces of the main body 8a, the hood 13c, and the like during rain. For example, when the raindrop 27 adheres to the glazing portion 18 of the main body 8a, the contact angle (G) between the raindrop 27 and the attached surface is increased by the fine unevenness 41, and the raindrop 27 is in contact with the product surface. Increases area. In general, when rain adheres to the surface of an object, the raindrop 27 becomes spherical on the surface of the object due to the action of the surface tension of the rain itself. The raindrops 27 attached to the surface have a small contact angle with the surface, and when the wind blows, the wind enters the clearance between the contact angles, and the wind blows off the rain from the surface. In the present invention, the raindrops 27 adhering to the fine irregularities 41 become wet because the surface tension of the raindrops 27 is weakened due to the irregularities and does not form a sphere. For this reason, even if the wind 26 blows up from the raindrops 27 attached to the surface of the louver 18 or the like, the contact angle between the raindrops 27 and the surface is large, so there is a gap between the raindrops 27 and the surface. Since the wind does not enter the clearance, it is possible to prevent the raindrops 27 from being separated from the surface. The rain water can be prevented from entering the room 1 through the room.
[0049]
As described above, according to the outdoor hood of the sixth embodiment of the present invention, the contact angle between the surface and the raindrops 27 is increased by the fine irregularities 41 on the surface of the main body 8a and the hood 13c, and is blown from the surface by the wind. Therefore, it is possible to prevent rainwater from entering the room 1, and thus it is possible to prevent the durability of the housing material from being impaired.
[0050]
(Embodiment 7)
As shown in FIG. 16, the surface of the main body 8b and the hood 13d is subjected to a surface treatment having fine irregularities 42.
[0051]
In the above configuration, when it rains, raindrops 27 adhere to the surfaces of the main body 8b and the hood 13d. For example, when the raindrop 27 adheres to the glazing portion 18 of the main body 8b, the surface tension of the raindrop 27 is weakened by the fine unevenness 42 applied to the surface of the glazing portion 18, and the raindrop 27 is on the surface of the fine unevenness 42. Become wet. The wet raindrops are the same as in the mechanism described in the sixth embodiment even when the wind 26 from below is blown, and the raindrops 27 adhering to the louver 18 are blown from the louver 18 by the wind, so that the cylinder 4 Since it is possible to prevent rainwater from entering the room 1 through the passage, it is possible to prevent the durability of the housing material from being impaired.
[0052]
As described above, according to the outdoor hood of the seventh embodiment of the present invention, the surface treatment of the main body 8b and the hood 13d with the fine irregularities 42 is performed, so that the contact angle between the surface and the raindrop 27 is increased. Since it can be increased and prevented from being blown from the surface by the wind, rainwater can be prevented from entering the room 1, so that the durability of the housing material can be prevented from being impaired.
[0053]
(Embodiment 8)
As shown in FIGS. 17 and 18, the cylindrical portion 4 a in which the inner diameter dimension (J) of the cylindrical portion 4 a increases from the indoor 1 side to the outdoor 2 side, and the indoor 1 side and the hood 13 on the inner peripheral surface 30 of the cylindrical portion 4 a. A dome-shaped water guide 45 having an opening in the direction of the front portion 9 and the circumferential direction 44 of the cylindrical portion 4a is provided.
[0054]
In the above configuration, when the raindrops 27 that have entered from the opening 6 adhere to the inside of the cylindrical portion 4a, they flow downward along the inner peripheral surface 30A of the cylindrical portion 4a and dive under the dome-shaped water guide 45. And since the raindrop 27 is expanding as the inner diameter dimension (J) of the cylinder part 4a goes to the outdoor 2 side, it flows to the outdoor 2 side along the inclination of the lower surface, and the outdoor opening of the dome-shaped water guide 45 46 is discharged. At this time, even when the wind 33 is generated from the outdoor 2 toward the indoor 1 inside the cylindrical portion 4 a, the raindrops 27 that have submerged in the dome-shaped water guide 45 are protected by the water guide 45 and directly with the wind 33. Since it does not contact, it flows to the direction of the outdoor 2 along the inclination of the cylinder part 4a, and does not flow backward.
[0055]
As described above, according to the outdoor hood of the eighth embodiment of the present invention, the raindrops 27 adhering in the cylindrical portion 4a dive in the dome-shaped water guide 45 along the inclination of the cylindrical portion 4a during strong wind and rain. Even if the wind 33 from the outdoor 2 to the indoor 1 is generated, it does not come in direct contact with the rain, so that raindrops 27 can be prevented from flowing in the direction of the indoor 1, so that rainwater enters the indoor 1. Can be prevented, and the durability of the housing material can be prevented from being impaired.
[0056]
(Embodiment 9)
As shown in FIGS. 19 and 20, a rectifying plate 48 is provided on both sides 47 of the opening of the main body 8 c so as to extend outward from the main body 8 c toward the front portion 9 of the hood 13.
[0057]
In the above configuration, when the outdoor hood is attached to the outer wall 5 and the ventilation fan 49 is installed on the indoor 1 side, when the ventilation fan 49 is operated, the air in the indoor 1 passes through the tubular portion 4 and is discharged from the opening 6. It collides with the inside of the front portion 9 of the hood 13. The air colliding with the inside of the front portion 9 of the hood 13 is reflected and hits the rectifying plate 48, the air hitting the rectifying plate 48 flows along the rectifying plate 48 to the outdoor 2, and is discharged from the side portion 12 of the hood 13 to the outdoor 2. Is done. At this time, the air discharged from the side portion 12 of the hood 13 is discharged to the outside at an angle corresponding to the angle of the rectifying plate 48 with respect to the outer wall 5, so that the air discharged from the side portion 12 of the hood 13 It does not flow in the direction.
[0058]
At this time, when the air in the room 1 is dirty, the air is attached to the portion in contact with the air, and the air is dirty. Therefore, dirty air in the room 1 hits the inside of the front part 9 of the hood 13 through the tubular part 4, but the air reflected from the front part 9 of the hood 13 flows along the rectifying plate 48 to the outdoor 2. . In this flow, dirty air dirt adheres to the part where dirty air is in contact, the inside of the front part 9 of the cylinder part 4 and the hood 13 and the current plate 48. However, the dirty air discharged from the side 12 of the hood 13 toward the outdoor 2 flows along the rectifying plate 48 and does not flow toward the outer wall 5. Dirt does not adhere to the surface of the outer outer wall 5. Even when the outer wall is viewed from the front of the outdoor hood, the portion contaminated by the dirty air in the room 1 is only the interior of the outdoor hood, and the front portion 9 of the hood 13 and the outer wall 5 are not dirty. When it happens, the beauty of the building itself is not impaired.
[0059]
Further, even when raindrops 27 enter from the side portion 12 of the hood 13 during strong wind and rain, the rectifying plate 48 prevents the raindrops 27 from entering. Therefore, the raindrop 27 entering from the side portion 12 of the hood 13 directly causes water to enter the opening 6. Intrusion can be prevented.
[0060]
In addition, as shown in FIG. 21, there is no difference in the effect even if the rectifying plate 48a is formed integrally with the main body.
[0061]
As described above, according to the outdoor hood of the ninth embodiment of the present invention, even if dirty air in the room 1 is reflected by the hood 13 and flows in the two outdoor directions along the rectifying plate 48, the dirty air is It can prevent adhering to the outer wall 5 and soiling a wall surface, and can prevent deteriorating the aesthetics of a building. Moreover, even if raindrops 27 enter from the side 12 of the hood 13 during strong winds and rains, intrusion can be prevented by the baffle plate 48, so that the raindrops 27 entering from the side 12 of the hood 13 directly enter the opening 6 and Rainwater can be prevented from entering, and the durability of the housing material can be prevented from being impaired.
[0062]
(Embodiment 10)
As shown in FIGS. 22 and 23, a convex portion 51 is provided on the front side 9b of the hood 13e so as to protrude toward the main body 8 and guide the air flow. To be discharged.
[0063]
In the above configuration, when the outdoor hood is attached to the outer wall 5 and the ventilation fan 49 is installed in the room 1, when the ventilation fan 49 is operated, the air in the room 1 passes through the cylinder part 4 and is discharged from the opening 6, and the hood It collides with the inside of the front part 9b of 13e. The air that has collided with the inside of the front portion 9b is rectified in the direction of the outdoor 2 along the plane 52, and is discharged from the side portion 12 of the hood 13e to the outdoor 2. At this time, when the air in the room 1 is dirty, the dirty air hits the inside of the front part 9b through the tube part 4, but flows in the direction of the outdoor 2 along the plane 52. Even if it exists, the dirt does not adhere to the outer wall 5.
[0064]
As described above, according to the outdoor hood of the tenth embodiment of the present invention, the dirty air in the room 1 hits the inside of the hood 13e and flows in the direction of the outdoor 2 along the plane 52, so that the dirty air adheres to the outer wall 5. It is possible to prevent the wall surface from becoming dirty and to prevent the appearance of the building from being damaged.
[0065]
(Embodiment 11)
As shown in FIGS. 24 and 25, a configuration is adopted in which a spherical convex portion 51a for guiding the flow of air is provided on the interior 1 side of the front portion 9c of the hood 13f.
[0066]
In the above configuration, when the outdoor hood is attached to the outer wall 5 and the ventilation fan 49 is installed on the indoor side 1, when the ventilation fan 49 is operated, the air in the room 1 passes through the tubular portion 4 and is discharged from the opening 6. It collides with the inside of the front part 9c of the hood 13f. The air that collides with the inside of the front portion 9c of the hood 13f is rectified in the direction of the outdoor 2 along the spherical surface of the convex portion 51a, and is discharged from the side portion 12 of the hood 13f to the outdoor 2. At this time, when the air in the room 1 is dirty, the dirty air hits the inside of the front part 9c through the cylindrical part 4 but flows in the direction of the outdoor 2 along the spherical surface. However, the dirt does not adhere to the outer wall 5.
[0067]
As described above, according to the outdoor hood of the eleventh embodiment of the present invention, the dirty air in the room 1 hits the hood 13f and flows in the direction of the outdoor 2 along the spherical surface of the convex portion 51a. It can prevent adhesion and soiling of the wall surface, and can prevent the appearance of the building from being damaged.
[0068]
(Embodiment 12)
As shown in FIG. 26, the water collection part which formed the water-receiving part 54 which inclines outward toward the room 1 side of the front part 9 of the food | hood 13g, and the return part 55 substantially parallel to the front part 9 at the front-end | tip. The plate 56 is provided.
[0069]
In the above configuration, when the raindrop 27 enters from the side portion 12 of the hood 13g during a strong wind, the raindrop 27 mainly hits the water receiving portion 54 of the water collecting plate 56. The raindrops 27 that have hit the water receiving portion 54 adhere to the surface of the water receiving portion 54 and drop downward due to their own weight. At this time, the raindrops 27 adhering to the water receiving portion 54 fall below the return portion 55 without being blown from the water collecting plate 56 even if the wind 57 directed from the side portion 12 of the hood 13g toward the outer wall 5 blows. .
[0070]
As described above, according to the outdoor hood of the twelfth embodiment of the present invention, even when the raindrop 27 enters from the side portion 12 of the hood 13g, the raindrop 27 is collected by the water collecting plate 56, and also on the side of the hood 13g. Since the raindrops 27 are not blown from the water collecting plate 56 even when wind blows from the section 12, rainwater can be prevented from entering the room 1 and the durability of the housing material can be prevented from being impaired. it can.
[0071]
(Embodiment 13)
As shown in FIG. 27, the top surface portion 10b of the hood 13h has a curved surface 58 whose central portion is convex upward.
[0072]
In the above configuration, when it rains, the raindrops 27 mainly hit the top surface portion 10b of the hood 13h. The raindrops 27 that hit the top surface portion 10b of the hood 13h are usually weak in rigidity when the top surface portion of the hood is flat. Therefore, when the raindrops 27 hit the top surface of the hood, a popping sound is generated as a collision sound. However, since the central portion of the top surface portion 10b of the hood 13h is a curved surface 58 that is convex upward, the rigidity of the top surface portion 10b of the hood 13h is increased, and the raindrops 27 are generated. Even if it hits the top surface, it will not generate a popping sound.
[0073]
As described above, according to the outdoor hood of the thirteenth embodiment of the present invention, since the top surface portion 10b has a high rigidity, it does not generate a bumpy sound due to the collision of the raindrops 27. Can be prevented.
[0074]
(Embodiment 14)
As shown in FIG. 28, a shaft 59 is provided on the outer periphery of the louvered portion 18 of the main body 8d, and a presser plate 60 supported by the shaft 59 is provided, and the net 61 is sandwiched between the front surface of the louvered portion 18 and the presser plate 60. The configuration is as follows.
[0075]
In the above configuration, when the mesh 61 is clogged due to the operation of a ventilation fan (not shown) or the like, the presser plate 60 is rotated around the shaft 59 so as to be detached from the mesh 61, and the mesh 61 is removed from the main body 8d. Clean the net 61. Further, when the net 61 is attached, the net 61 is inserted from the side of the opened hood or the lower part of the hood, and is placed on the front surface of the louver 18 so that the holding plate 60 is placed on the flange 62 on the outer periphery of the net 61. To secure the net 61 to the main body 8d.
[0076]
As described above, according to the outdoor hood of the fourteenth embodiment of the present invention, the mesh 61 can be freely attached and detached by the rotation of the presser plate 59. However, the net can be easily attached and detached.
[0077]
(Embodiment 15)
As shown in FIGS. 29 and 30, the front portion 9d and the side portion 12b formed by the top surface portion 10c and the side wall portion 63 are fixed to a main body 8e having an opening 6 at the approximate center attached to the outer wall 5. An opening 65 through which air flows is provided on an inclined surface 64 that is closed and provided with a hood 13i having an opening in the lower portion 11 and connecting the front portion 9d of the hood 13i and the side wall portion 63 that forms the side portion 12b. The configuration is provided.
[0078]
In the above configuration, when the outdoor hood is attached to the outer wall 5 and the ventilation fan 49 is operated with the ventilation fan 49 installed on the indoor 1 side, the air in the room 1 passes through the tubular portion 4 and is discharged from the opening 6 into the hood 13i. The air that collides with the inside of the front portion 9d of the hood 13i and collides with the inside of the front portion 9d of the hood 13i spreads and is discharged to the outside 2 through the opening 65 provided on the side of the front portion 9d. At this time, since the opening 65 is provided on the side of the front portion 9 d at a position away from the outer wall 5 by the side wall portion 63, the discharged air discharged to the outdoor 2 is discharged in a direction away from the outer wall 5. It becomes.
[0079]
In addition, wind and rain that has entered the hood 13i from the opening of the lower portion 11 of the hood 13i during a strong wind is released from the opening 65, and raindrops do not enter the indoor 1 side from the opening 6 of the main body 8e.
[0080]
As described above, according to the outdoor hood of the fifteenth embodiment of the present invention, the hood 13i that is fixed to the main body 8e having the opening 6 at the approximate center attached to the outer wall 5 and that opens at least the front surface portion 9d and the top surface portion 10c. Since the opening 65 serving as an air flow path is formed on the side of the front portion 9d of the hood 13i, rain water can be prevented from entering the house, and the durability of the housing material can be prevented from being impaired. The product can be made thinner and the design can be improved, and contamination of the outer wall 5 by the ventilation flow can be reduced.
[0081]
Further, the front portion 9d, the top surface portion 10c, and the side portion 12b are closed, and the air flows on the inclined surface 64 between the formed hood 13i and the side wall portion 63 provided on the front portion 9d of the hood 13i and the side portion 12b. Since the opening 65 is formed, the contaminated ventilation flow is not released to the surface of the outer wall 5 by the side wall 63 and is discharged from the opening 65 in a direction away from the outer wall 5, so that the outer wall 5 is contaminated. Can be prevented.
[0082]
(Embodiment 16)
As shown in FIG. 31, the side wall portion 63a and the front surface portion 9e that form the opening 65a through which air flows are formed in an R surface or C surface shape, and the front surface portion from the end portion on the opening 65a side of the side wall portion 63a. 9e The hood 13j is formed and configured so that the ventilation flow easily flows along the outer surface of the front portion 9e.
[0083]
In the above configuration, when the ventilation fan 49 is operated, the air in the room 1 passes through the cylinder portion 4 and is discharged into the hood 13j from the opening 6, and the R surface or C of the side wall portion 63a and the front portion 9e forming the hood 13j. It is guided in a surface shape, guided to the R surface or C surface shape of the front surface portion 9e from the opening 65a, and discharged from the opening 65a toward the center of the outer surface of the front surface portion 9e.
[0084]
As described above, according to the outdoor hood of the sixteenth embodiment of the present invention, the side wall portion 63a and the front surface portion 9e that form the opening 65a through which air flows are formed in the R surface or C surface shape. Is sent to the opening 65a along the R surface or C surface of the side wall portion 63a and the front surface portion 9e, discharged from the opening 65a toward the center of the front surface portion 9e along the outer surface of the front surface portion 9e, and the outer wall 5 is contaminated. Can be prevented.
[0085]
(Embodiment 17)
As shown in FIGS. 32 and 33, the protrusions 66 and the front surface portion 9f of the front surface portion 9f toward the center portion of the front surface portion 9f are formed at the end portions of the side wall portions 63b of the side wall portion 63b and the front surface portion 9f forming the opening 65b through which air flows. A guide plate 67 having an inclined surface that smoothly guides the air flow guided toward the front portion 9f by the protruding piece 66 toward the center portion of the front portion 9f is provided on the side portion, thereby constituting the hood 13k.
[0086]
In the above configuration, when the ventilation fan 49 is operated, the air in the room 1 passes through the cylindrical portion 4 and is discharged into the hood 13k from the opening 6, and the projection 66 of the side wall 63b forming the hood 13k causes the front portion 9f. The air flowing toward the center portion is guided by a guide plate 67 provided on the side of the front portion 9f and forcedly discharged toward the center portion of the front portion 9f.
[0087]
As described above, according to the outdoor hood of the seventeenth embodiment of the present invention, the guide plate 67 for guiding the exhaust air to the central portion side of the front portion 9f is provided in the opening 65b through which the air flows. Thus, it is possible to prevent the outer wall 5 from being contaminated by being discharged toward the center of the front portion 9f.
[0088]
In the seventeenth embodiment, the guide plate 67 is provided integrally with the front portion 9f, but it goes without saying that the guide plate may be formed of a separate member.
[0089]
【The invention's effect】
As described above, according to the first and second aspects of the invention, the durability of the housing material can be prevented from being impaired, and the design can be improved by reducing the thickness of the product. It is possible to reduce contamination of the outer wall.
[0090]
Moreover, according to the invention of Claim 3, it can prevent that the durability of a housing material is impaired, and can improve the design property of the whole building at the time of product and product installation.
[0091]
Moreover, according to invention of Claims 4-6, it can prevent that durability of a housing material is impaired.
[0092]
According to the seventh aspect of the present invention, it is possible to prevent raindrops that have entered the cylinder portion from flowing in the indoor direction.
[0093]
Moreover, according to invention of Claims 8-15, it can prevent that rain water permeates into a room | chamber interior and can prevent that durability of a housing material is impaired.
[0094]
Moreover, according to invention of Claim 16 and 17, it can prevent that a wall surface is soiled and can prevent that the beauty | look of a building is impaired.
[0095]
According to the invention described in claim 18, it is possible to prevent rainwater from entering the room and to prevent the durability of the housing material from being impaired.
[0096]
According to the nineteenth aspect of the present invention, it is possible to prevent the generation of unpleasant sounds caused by rain.
[0097]
According to the invention as set forth in claim 20, the net can be easily attached and detached.
[0098]
Moreover, according to the invention of Claim 21 and 22, contamination of the outer wall by ventilation flow can be relieved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a configuration of an outdoor hood according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing a construction state of the outdoor hood.
FIG. 3 is a cross-sectional view showing the flow of wind and rain blowing on the outdoor hood
FIG. 4 is a perspective view showing the flow of wind blowing on the outdoor hood.
FIG. 5 is a cross-sectional view showing the cylindrical wall and drain hole of the outdoor hood
FIG. 6 is a perspective view showing a cylindrical wall, a drain hole, and a louver part of the outdoor hood.
FIG. 7 is a perspective view showing a structure of a water stop plate of the outdoor hood.
FIG. 8 is a perspective view showing a configuration of an outdoor hood according to a second embodiment of the present invention.
FIG. 9 is a cross-sectional view showing the flow of wind and rain blowing on the outdoor hood
FIG. 10 is a perspective view showing a configuration of an outdoor hood according to a third embodiment of the present invention.
FIG. 11 is a cross-sectional view showing the flow of wind and rain blowing on the outdoor hood
12 is a perspective view showing a configuration of an outdoor hood according to a fourth embodiment of the present invention. FIG.
FIG. 13 is a perspective view showing a configuration of an outdoor hood according to a fifth embodiment of the present invention.
FIG. 14 is a sectional view showing a configuration of an outdoor hood according to a sixth embodiment of the present invention.
FIG. 15 is a partially enlarged cross-sectional view showing the state of raindrops in the garage portion of the outdoor hood
FIG. 16 is a sectional view showing a configuration of an outdoor hood according to a seventh embodiment of the present invention.
FIG. 17 is a sectional view showing a configuration of an outdoor hood according to an eighth embodiment of the present invention.
FIG. 18 is a perspective view showing the configuration of the outdoor hood
FIG. 19 is a perspective view showing a configuration of an outdoor hood according to a ninth embodiment of the present invention.
FIG. 20 is a cross-sectional view showing the flow of wind in the outdoor hood
FIG. 21 is a perspective view showing the configuration of the outdoor hood.
FIG. 22 is a perspective view showing the configuration of an outdoor hood according to a tenth embodiment of the present invention.
FIG. 23 is a cross-sectional view showing the wind flow of the outdoor hood
FIG. 24 is a perspective view showing a configuration of an outdoor hood according to an eleventh embodiment of the present invention.
FIG. 25 is a cross-sectional view showing the wind flow of the outdoor hood
FIG. 26 is a cross-sectional view showing a configuration of an outdoor hood according to a twelfth embodiment of the present invention.
FIG. 27 is a perspective view showing a configuration of an outdoor hood according to a thirteenth embodiment of the present invention.
FIG. 28 is a front view showing the configuration of the main body of the outdoor hood according to the fourteenth embodiment of the present invention.
FIG. 29 is a cross-sectional view showing the wind flow of the outdoor hood according to the fifteenth embodiment of the present invention.
FIG. 30 is a perspective view of the outdoor hood.
FIG. 31 is a cross-sectional view showing the flow of wind in the outdoor hood according to the sixteenth embodiment of the present invention.
FIG. 32 is a cross-sectional view showing the flow of wind in the outdoor hood according to the seventeenth embodiment of the present invention.
FIG. 33 is a perspective view of the outdoor hood.
FIG. 34 is a perspective view showing a configuration of a conventional outdoor hood.
FIG. 35 is a cross-sectional view showing the flow of wind and rain in the outdoor hood
FIG. 36 is a perspective view showing the configuration of another conventional outdoor hood.
FIG. 37 is a cross-sectional view showing wind and rain flow of the outdoor hood
[Explanation of symbols]
1 room
2 outdoor
3 Duct
4 cylinder
4a Tube
5 outer wall
6 opening
7 Flange
8 Body
8a body
8b body
8c body
8d body
8e body
9 Front
9a Front part
9b Front section
9c front
9d Front section
9e front
9f front
10 Top surface
10a Top surface
10b Top surface
10c Top surface
11 Lower part
12 Side
12a side
12b side
13 Food
13a food
13b food
13c food
13d food
13e food
13f food
13g food
13h food
13i food
13j food
13k food
14 Outdoor hood
18 gallery
20 Tube wall
21 Water drain hole
23 Indoor side bottom
24 Water stop plate
32 Drain hole guide
34 Lower end of inner peripheral surface
35 Backflow prevention plate
36 Side cover
38 Left and right ends
39 Left and right ends
40 protrusions
41 Fine irregularities
42 Fine irregularities
44 Circumferential direction
45 Water Guide
47 Both sides of the opening
48 Rectifier plate
48a Current plate
51 Convex
51a Convex part
54 Water receiving section
55 Return section
56 Water collecting plate
58 Curved surface
61 Net
65 opening
65a opening
65b opening
67 Guide plate
C Inner diameter
D Inner diameter
E Width dimension
F width dimension
J Inner diameter

Claims

An opening that is attached to the outer wall and has a main body having an opening at a substantially center, and a hood that is fixed to the main body and has at least a front surface portion and a top surface portion closed, and that serves as an air flow path on the side of the front surface portion of the hood. forming a sum of opening areas of both the right and left sides of the hood, a large city than the opening area of the lower part of the hood, wind blown penetrates from the lower part of the hood, the said hood An outdoor hood characterized by a configuration that comes out from the top of the side.

Between the main body having an opening in the substantially center attached to the outer wall, the hood formed by closing the front portion, the top surface portion, and the side portion, and the side wall portion provided on the front portion and the side portion of the hood. The outdoor hood which formed the opening which the air distribute | circulates in the inclined surface of the shape which connects both.

A main body that is provided in a wall and is inserted into a duct that communicates between the room and the outside, a flange that is attached to the outer wall and has an opening at a substantially center, and is fixed to the main body. and top surface portion and closed and opened a bottom and side, outdoor hood according to claim 1 or 2 wherein the formation of the flow passage of the air.

The opening of the flange portion is an opening having an inner diameter larger than the inner diameter of the cylinder, and a cylindrical wall protruding toward the hood is formed on the outer periphery of the opening, and a drain hole is provided in a lower portion of the cylinder wall. Item 4. The outdoor hood according to item 3.

The outdoor hood according to claim 3, wherein a plurality of columnar louver portions are provided in the opening of the main body.

The outdoor hood according to claim 3, wherein the outdoor hood is inclined downward from the top surface portion to the front surface portion of the hood.

The outdoor hood according to claim 3, wherein a water stop plate is provided at a lower end on the indoor side on the inner peripheral side of the cylindrical portion.

The outdoor hood according to claim 4, wherein a cylindrical drainage hole guide having a lower end is provided below the drainage hole.

The outdoor hood according to claim 4, further comprising a backflow prevention plate having one end positioned on the inner peripheral lower surface of the cylindrical portion and the other end positioned above the drainage hole and having a width dimension longer than the width dimension of the drainage hole.

The outdoor hood according to claim 3, wherein side covers are provided on the left and right upper ends of the side portions of the hood.

The outdoor hood according to claim 3, wherein protrusions are provided at both left and right end portions of the top surface portion and the front surface portion of the hood.

The outdoor hood according to claim 3, wherein fine irregularities are provided on the surface of the hood and the main body.

The outdoor hood according to claim 3, wherein the surface of the hood and the main body is subjected to a surface treatment having fine irregularities.

A cylindrical portion whose inner diameter expands from the indoor side to the outdoor side, and a dome-shaped water guide that opens in the circumferential direction of the indoor side, the hood side, and the cylindrical portion are provided on the inner peripheral surface of the cylindrical portion. The outdoor hood according to claim 3 configured.

The outdoor hood according to claim 3 and 4, wherein a rectifying plate extending outward from the main body toward the front portion of the hood is provided on both sides of the opening of the main body.

The outdoor hood according to claim 3, wherein a convex portion for guiding the flow of air is formed on the indoor side of the front portion of the hood.

The outdoor hood according to claim 3, wherein a spherical convex portion for guiding an air flow is formed on the indoor side of the front portion of the hood.

The outdoor hood according to claim 3, wherein a water collecting plate is provided on the indoor side of the front portion of the hood, and a water collecting plate that is inclined outward and a return portion that is substantially parallel to the front portion at the tip.

The outdoor hood according to claim 3, wherein the top surface portion of the hood is formed by a curved surface whose central portion protrudes upward.

The outdoor hood according to claim 3, wherein a removable net is provided at the opening of the main body.

The outdoor hood according to claim 2, wherein the side wall part and the front part forming the opening through which air flows are formed in an R surface or C surface shape.

The outdoor hood according to claim 2, wherein a guide plate for guiding the exhaust air to the center side of the front portion is provided in an opening through which air flows.