JP3891850B2

JP3891850B2 - Line diffuser

Info

Publication number: JP3891850B2
Application number: JP2002022483A
Authority: JP
Inventors: 邦治佐々木; 義一進藤; 明鳥實; 拓也重松; 隆之木場
Original assignee: 株式会社三菱地所設計; 協立エアテック株式会社
Priority date: 2002-01-30
Filing date: 2002-01-30
Publication date: 2007-03-14
Anticipated expiration: 2022-01-30
Also published as: JP2003222381A

Description

【０００１】
【発明の属する技術分野】
本発明は、空調機器から送給される調和空気を室内へ吹き出すために天井面上方に設置されるラインディフューザに関する。
【０００２】
【従来の技術】
近年、室内の美観性や施工の迅速性などの観点から、いわゆるシステム天井の採用が増加しているが、これらのシステム天井では、空調機器から送風される調和空気の吹出口として、天井面に開口する長矩形状の空気吹出口を下面部分に備えたラインディフューザが多用されている。
【０００３】
本願に関連する従来技術として、例えば、実開昭５１−２４０４１号公報、実開昭５１−７１０６４号公報、実公平７−３１０７５号公報に開示されているラインディフューザがある。
【０００４】
実開昭５１−２４０４１号公報に開示されているラインディフューザはチャンバの長手方向端部の内側面に設けられた凹凸を有するＶ字状のガイドに、羽根の両端部に設けられた弾性支持金具を移動可能に係止した構造であり、羽根とともに弾性支持金具を前記ガイドに沿って移動させて羽根の係止角度を変えることによって気流の吹出方向を設定する。
【０００５】
実開昭５１−７１０６４号公報に開示されているラインディフューザは、羽根の長手方向両端部から突出した偏心軸を、吹出口開口部の長手方向両端部に回動可能に係止した構造であり、偏心軸を中心に羽根を回動させて羽根の傾斜角度を変えることによって気流の吹出方向を設定する。
【０００６】
実公平７−３１０７５号公報に開示されている二枚羽根対向型ディフューザは、吹出口開口部の長手方向に沿って架設された支持軸に、二枚の羽根を抱き合わせた状態で回動可能に係止した構造であり、二枚の羽根の開度や傾斜角度を変えることによって気流の吹出方向や風量の設定を行う。
【０００７】
【発明が解決しようとする課題】
実開昭５１−２４０４１号公報に開示されているラインディフューザは、羽根を一度設定した場所に戻して元の気流方向に設定し直すことが困難であるため、羽根位置の再現性が悪い。また、実開昭５１−７１０６４号公報に開示されているラインディフューザは、羽根の角度調節は人間の感覚に頼って行われるため、前述のラインディフューザと同様、羽根位置の再現性が悪い。
【０００８】
一方、実公平７−３１０７５号公報に開示されている二枚羽根対向型ディフューザの場合、羽根位置の調節が難しく、羽根位置の再現性も悪く、羽根の傾斜角度や開度によって吹出口の性能（騒音、圧力損失）が変化するため、微妙な調節が要求される。また、羽根の開度を変えて風量を変えると、吹出方向も変化してしまう。
【０００９】
さらに、図９に示すように、前記公報に開示されているラインディフューザを含む従来のラインディフューザ９０において、ダクト接続口９５へ送給される調和空気９４の吹出方向を水平方向に設定した場合、開口部９６から吹き出す気流９１，９２が天井面Ｃに張り付いた状態となって、空調効率が悪化することがある。
【００１０】
すなわち、天井Ｃに沿った気流９１，９２は速度が速く、到達距離も長いため、付近に他のラインディフューザ９７，９８がある場合、これらから吹き出す気流と干渉し合ってドラフトを生じたり、これらから吹き出す気流と合流してさらに到達距離が伸びて部屋９９の天井Ｃ全体を覆う一体的な気流となり冷房空気の拡散を阻害して空調効率を低下させたりしている。また、部屋９９の天井Ｃに沿って移動した気流９１は壁面Ｗにぶつかって下降し、冷房空気が床Ｆを這って移動することによってドラフトを生じることもある。
【００１１】
本発明が解決しようとする課題は、調和空気の吹出方向の調節が容易であり、吹出方向の再現性が良好であり、吹出方向変更に起因する性能変化が極めて小さく、空調効率も高いラインディフューザを提供することにある。
【００１２】
【課題を解決するための手段】
本発明のラインディフューザは、調和空気を導入する給気用接続口と、導入した調和空気を吹き出す矩形の吹出用開口とを有する箱体状のチャンバと、前記チャンバ内の前記吹出用開口に臨む位置に前記吹出用開口の短辺方向に移動可能に配置され前記吹出用開口の短辺より短い短辺を有する矩形の気流切替板と、前記吹出用開口の長辺に沿ってそれぞれ短辺と平行方向に突設された導流部材と、前記気流切替板の長辺が前記チャンバ内面に当接するまで前記気流切替板を移動させたとき両者間の少なくとも一部に隙間を残すための隙間形成手段とを備えたことを特徴とする。
【００１３】
このような構成とすれば、給気用接続口からチャンバ内に導入された調和空気の吹出方向は、気流切替板とチャンバ内面と間に生じる空間と導流部材との位置関係によって吹出用開口面に垂直な方向から平行な方向の範囲内で定められ、吹出用開口から手を差し込んで吹出用開口に臨む位置にある気流切替板をその短辺方向に移動させるだけで前記範囲内で気流吹出方向を変更できるので、調和空気の吹出方向の調節が容易であり、気流切替板の位置は吹出用開口から目視確認できるので吹出方向の再現性が良好である。
【００１４】
また、気流切替板は平板状であり、その移動に伴って吹出用開口の流路面積が変化したり、圧力損失や騒音が変化したりすることがないので、吹出方向変更に起因する性能変化が極めて小さい。さらに、気流切替板の一方の長辺がチャンバ内面に当接した状態にあるとき当該長辺とチャンバ内面との隙間から吹出用開口に向かって吹き出す気流が、他方の長辺とチャンバ内面との間から吹き出す気流が吹出用開口面と略同一面に沿って移動するのを阻止するので、冷房空気を吹き出す際のドラフトの発生や冷房空気の天井面への張り付きによる拡散不良をなくすことができ、高い空調効率が得られる。
【００１５】
ここで、前記隙間形成手段として、前記気流切替板の両方または片方の長辺に切欠部を設けることにより、切欠部のある長辺がチャンバ内面に当接したときに隙間が形成され、この隙間から吹き出す気流が天井面（吹出用開口面と略同一面）に張り付こうとする気流を引き離す作用を発揮するため、吹出用開口から水平方向に吹き出す気流が天井面に張り付くのを防止することができる。このため、気流の干渉を考慮した上での吹出口（ラインディフューザ）の配置設計が容易に行うことができるようになる。また、切欠部の位置や切欠深さは使用条件に応じて選択することができるので、必要に応じた気流が得られる。
【００１６】
この場合、前記気流切替板の両方または片方の長辺上においてそれぞれ前記給気用接続口から前記チャンバ内を経由して最短距離に位置する部分を含む領域に前記切欠部を設けることにより、給気用接続口から導入される調和空気の流量が最も多い部分に隙間が位置することとなるため、前述した天井面への気流張り付き防止作用がより大きくなり、下方へ膨らんだ気流を得ることができる。このため、気流干渉を考慮した吹出口の配置設計が容易に行えるようになり、高い空調効率が得られる。
【００１７】
また、前記気流切替板の片方の長辺が前記チャンバの内面に当接するまで前記気流切替板を移動させたとき、前記気流切替板の他方の長辺の切欠部を閉塞するための閉塞部材を前記気流切替板に隣接させて配置することが望ましい。このような閉塞部材を設ければ、チャンバ内面に当接していない方に位置する長辺にある切欠部が閉塞部材で塞がれるので、流路に露出した切欠部を気流が通過することによって生じる鉛直下向き気流が気流切替板本来の気流変向機能を阻害するのを防止することができ、流路に露出した切欠部を気流が通過する際に発生する振動や風切り音に起因する騒音も抑制することができる。
【００１８】
また、前記気流切替板の長辺が前記チャンバ内面に当接するまで前記気流切替板を移動させたとき、前記気流切替板を前記長辺と平行な軸を中心に回動させ傾斜状態に保持するための傾動機構を設けることにより、チャンバ内に導入された調和空気を傾斜した気流切替板で吹出用開口面に向かって斜め方向に誘導し、吹出用開口から斜めに吹き出すことが可能となるので、吹出用開口面からの気流吹出方向の多様性が増し、使用条件に適した高効率の空調を行うことができる。
【００１９】
さらに、前記吹出用開口面から前記チャンバ内に２５ｍｍ〜４０ｍｍ引っ込んだ位置に前記気流切替板を配置することにより、当該気流切替板は前記導流部材よりも上方へ適度に離れて位置することとなるため、吹出用開口から手を差し込んで気流切替板の位置変更を行う際の作業性が良好となるだけでなく、気流吹出方向を水平に設定した場合、その気流変向作用が最大となる。なお、吹出用開口面と気流切替板との距離が短すぎると単に気流を遮る作用しか生じないようになり、前記距離が長すぎると気流切替板によって一旦変向された気流の方向が元の状態に戻るようになり気流切替板としての機能が低下する傾向が生じる。
【００２０】
一方、前記給気用接続口の開閉および開度設定を行うため互いに接近、離隔可能な複数の開閉部材と、前記吹出用開口から手を差し込んで前記開閉部材の開閉および開度設定を行うための操作部材とを設けることにより、吹出用開口からの手動操作で気流吹出方向の調節から独立した吹出流量調節が可能となるため、簡単な操作で使用条件に適した微妙な空調条件の設定を行うことができる。
【００２１】
【発明の実施の形態】
図１（ａ）は本発明の実施の形態であるラインディフューザを示す側面図、図１（ｂ）は前記ラインディフューザの底面図、図２は図１（ａ）のＡ−Ａ線における一部省略断面図、図３（ａ）は図１に示すラインディフューザの透視側面図、図３（ｂ）は気流切替板の平面図、図４は図３（ａ）の部分拡大図である。
【００２２】
図１〜図４に示すように、本実施形態のラインディフューザ１においては、金属板で形成され側面視形状が略台形をした箱体状のチャンバ２の一方の側面に調和空気を導入するための給気用接続口３が設けられ、チャンバ１内に導入した調和空気を吹き出すための矩形の吹出用開口４がチャンバ１の底面に設けられ、チャンバ１内において吹出用開口４に臨む位置にその短辺４ａより短い短辺５ｃを有する矩形の気流切替板５が吹出用開口４の短辺方向Ｘに移動可能に配置され、吹出用開口４の長辺に沿ってそれぞれ短辺４ａと平行方向に突出した導流部材６が設けられている。
【００２３】
気流切替板５の両方の短辺５ｃ部分はそれぞれチャンバ２内の両端に設けられた略台形状の支持部材７上にスライド可能に載置され、チャンバ２を構成する側板２ａの内面に垂下状に固定された複数の略釣り針形状の板バネ８の下端湾曲部８ａが気流切替板５の上面を押圧した状態で保持されているため、気流切替板５は支持部材７の上辺７ａに沿ってその短辺５ｃ方向にスライド可能であり、気流切替板５ａの長辺５ａ，５ｂのいずれかがチャンバ２の側板２ａの内面に当接する位置においては、気流切替板５は長辺５ａ，５ｂと平行な軸を中心に回動して支持部材７の斜辺７ｂ上で４５度に傾斜した状態で保持される。
【００２４】
また、気流切替板５の一方の長辺５ａの中央付近には切欠深さの異なる複数の切欠部５１，５２，５３が段階的に設けられ、他方の長辺５ｂの中央付近には切欠深さが一定の切欠部５４が設けられ、気流切替板５を手動操作で移動させるための複数の切替具５ｄが気流切替板５の下面に垂下状に形成されている。
【００２５】
一方、給気用接続口３のチャンバ２内における開口部分には、給気用接続口３の開閉および開度設定を行うため水平方向にスライドして互いに接近、離隔可能な２枚の開閉部材１１，１２と、吹出用開口４から手を差し込んで開閉部材１１，１２の開閉操作および開度設定を行うための操作部材１０とを設けている。開閉部材１１，１２による開閉機構については後述する。
【００２６】
ここで、図５を参照して、気流切替板５の設定位置と吹出用開口４からの気流吹出方向との関係について説明する。図５（ｃ）に示すように気流切替板５を支持部材７の上辺７ａ直上に配置すると、気流切替板５の長辺５ａ，５ｂとチャンバ２の側板２ａとの間に形成された２つの開口部１３を通過した気流が吹出用開口４から真下に向かって吹き出す。
【００２７】
また、図５（ｂ）または（ｄ）に示すように気流切替板５を側板２ａのいずれかに当接するまで移動させると、気流切替板５の長辺５ａ，５ｂのいずれかと側板２ａとの間に形成された開口部１４，１５を通過した気流がそれぞれ開口部１４，１５側に位置する導流部材６によって誘導され吹出用開口４から水平方向へ吹き出す。
【００２８】
次に、図（ａ）または（ｅ）に示すように、気流切替板５の長辺５ａ，５ｂのいずれかが側面２ａに当接した位置において４５度に傾斜させると、気流切替板５の長辺５ａ，５ｂのいずれかと側板２ａとの間に形成された開口部１６，１７を通過した気流がそれぞれ開口部１６，１７側に位置する導流部材６および気流切替板５によって誘導され吹出用開口４から４５度傾斜した方向へ吹き出す。
【００２９】
このように、給気用接続口３からチャンバ２内に導入された調和空気の吹出方向は、気流切替板５とチャンバ２の側板２ａの内面と間に生じる空間と導流部材６などとの位置関係によって吹出用開口面に垂直な方向から平行な方向の範囲内で定められ、吹出用開口４から手を差し込んで吹出用開口４に臨む位置にある気流切替板５の切替具５ｄをその短辺５ｃ方向に移動させるだけで前記範囲内で気流吹出方向を変更できるので、気流吹出方向の調節が容易であり、気流切替板５の位置は吹出用開口４から目視確認できるので吹出方向の再現性も良好である。
【００３０】
また、気流切替板５は平板状であり、その移動に伴って吹出用開口４の流路面積が変化したり、圧力損失や騒音が変化したりすることがないので、吹出方向変更に起因する性能変化も極めて小さい。なお、本実施形態では、吹出用開口４からチャンバ２内に３０ｍｍ引っ込んだ位置に気流切替板５を配置しているため、気流切替板５は導流部材６よりも上方へ適度に離れて位置することとなり、吹出用開口４から手を差し込んで気流切替板５の位置変更を行う際の作業性が良好となるだけでなく、気流吹出方向を水平に設定した場合、その気流変向作用が最も大となる。
【００３１】
ここで、図６を参照して、気流切替板５に形成された切欠部５１〜５４の機能について説明する。図６（ａ）に示すように気流切替板５の長辺５ａが供給用接続口３と対向する側板２ａの内面に当接しているとき切欠部５１，５２，５３によって側板２ａと気流切替板５との間に隙間Ｓ１が形成されるため、隙間Ｓ１から吹出用開口４に向かって吹き出す気流Ｋ１が、他方の長辺５ｂと側板２ａの内面との間から吹き出す気流Ｋ２を下方へ押圧し、気流Ｋ２が吹出用開口面と略同一面に沿って水平移動するのを阻止することができる。
【００３２】
同様に、図６（ｂ）に示すように、気流切替板５の長辺５ｂが供給用接続口３がある方の側板２ａの内面に当接しているとき切欠部５４によって側板２ａと気流切替板５との間に隙間Ｓ２が形成されるため、隙間Ｓ２から吹出用開口４に向かって吹き出す気流Ｋ３が、他方の長辺５ａと側板２ａの内面との間から吹き出す気流Ｋ４を下方へ押圧し、気流Ｋ４が吹出用開口面と略同一面に沿って水平移動するのを阻止することができる。
【００３３】
このように、気流切替板５の長辺５ａ，５ｂが側面２ａのいずれかに当接しているとき、切欠部５１〜５４によって隙間Ｓ１，Ｓ２が確保され、これらから吹き出す気流Ｋ１，Ｋ３が気流Ｋ２，Ｋ４を下方へ押圧するので、図９で示したような冷房空気を吹き出す際のドラフトや冷房空気の天井面への張り付きによる拡散不良が発生せず、ラインディフューザ１の吹出用開口４から吹き出した気流Ｋ１，Ｋ４は、図８に示すように、下方へ膨らんだ状態に拡散し、気流干渉なども発生しないので、高い空調効率が得られる。
【００３４】
切欠部５１〜５４はいずれも、気流切替板５の長辺５ａ，５ｂ上においてそれぞれ給気用接続口３からチャンバ２内を経由して最短距離に位置する長辺５ａ，５ｂの中央部分を含む領域に設けているため、給気用接続口３から導入される調和空気の流量が最も多い部分に隙間Ｓ１，Ｓ２が形成され、隙間Ｓ１，Ｓ２から吹き出す気流Ｋ１，Ｋ３の押圧力が大となり、吹出用開口４から吹き出す気流が天井面に張り付くのを防止する作用が最も大となる。
【００３５】
さらに、気流切替板５が図６（ａ）または（ｂ）の状態にあるとき、側板２ａと当接していない方に位置する切欠部５１〜５４は、気流切替板５の下面に隣接して配置された閉塞部材１８によって塞がれるので、気流Ｋ２，Ｋ４が通過する際に発生する振動や風切り音に起因する騒音を抑制することができる。また、閉塞部材１８がなければ流路に露出した切欠部５１〜５４を通過して鉛直下向き気流が生じ、気流切替板５本来の気流変向機能が悪化することがあるが、前述したように閉塞部材１８で切欠部５１〜５４を塞ぐことにより、このような弊害を防止することができる。
【００３６】
次に、図３および図７を参照して、開閉部材１１，１２による開閉機構について説明する。２枚の開閉部材１１，１２は水平方向にスライドして互いに接近、離隔可能であり、図７（ａ）に示すように、開閉部材１１，１２には四角形の開口１１ｃ，１２ｃが開設され、操作部材１０は開閉部材１２と一体的に形成され、開閉部材１１，１２の下方にはラック１１ａ，１２ａが設けられている。
【００３７】
チャンバ２の給気用接続口３がある方の側板２ａ内面に、開閉部材１１，１２はラック１１ａ，１２ａ部分が対向するように重ねて配置され、係止具１９によってスライド自在に係止され、対向するラック１１ａ，１２ａにはピニオンギア２０が歯合されている。したがって、操作部材１０を水平方向に移動させると開閉部材１２が同時に移動し、開閉部材１２の下方に形成されているラック１２ａがピニオンギア２０を回動させ、ピニオンギア２０の回動によってラック１１ａが水平移動することで開閉部材１１が開閉部材１２と反対方向へ移動する。
【００３８】
このように、操作部材１０の位置を変更させて開閉部材１１，１２の開口１１ｃ，１２ｃの重なり状態を変化させることにより、給気用開口部３において、図７（ｂ）に示すような全閉状態、図７（ｃ）に示すような半開状態あるいは図７（ｄ）に示すような全開状態を選択することができる。すなわち、吹出用開口４から手を差し込んで操作部材１０を手動操作することによって気流吹出方向の調節から独立した吹出流量調節が可能であるため、簡単な操作で使用条件に適した微妙な空調条件の設定を行うことができる。
【００３９】
【発明の効果】
本発明により、以下の効果を奏する。
【００４０】
（１）給気用接続口と矩形の吹出用開口とを有する箱体状のチャンバと、前記チャンバ内の吹出用開口に臨む位置に吹出用開口の短辺方向に移動可能に配置され吹出用開口の短辺より短い短辺を有する矩形の気流切替板と、吹出用開口の長辺に沿ってそれぞれ短辺と平行方向に突設された導流部材と、気流切替板の長辺がチャンバ内面に当接するまで気流切替板を移動させたとき両者間の少なくとも一部に隙間を残すための隙間形成手段と備えたことにより、調和空気の吹出方向の調節が容易であり、吹出方向の再現性が良好であり、吹出方向変更に起因する性能変化も極めて小さくなる。
【００４１】
（２）前記隙間形成手段として、前記気流切替板の両方または片方の長辺に切欠部を設けることにより、切欠部とチャンバ内面との隙間から吹き出す気流が天井面に張り付こうとする気流を引き離す作用を発揮するため、吹出用開口から水平方向に吹き出す気流が天井面に張り付くのを防止することができ、気流の干渉を考慮した上でのラインディフューザの配置設計が容易となる。また、切欠部の位置や切欠深さは使用条件に応じて選択することができるので、必要に応じた気流が得られる。
【００４２】
（３）前記気流切替板の両方または片方の長辺上においてそれぞれ前記給気用接続口から前記チャンバ内を経由して最短距離に位置する部分を含む領域に前記切欠部を設けることにより、流量が最も多い部分に隙間が位置することとなるため、天井面への気流張り付き防止作用がより大きくなり、下方へ膨らんだ気流を得ることができる。このため、気流干渉を考慮した吹出口の配置設計が容易に行えるようになり、高い空調効率が得られる。
【００４３】
（４）前記気流切替板の片方の長辺が前記チャンバの内面に当接するまで前記気流切替板を移動させたとき、前記気流切替板の他方の長辺の切欠部を閉塞するための閉塞部材を前記気流切替板に隣接させて配置することにより、気流切替板の気流変向機能が悪化するのを防止することができ、切欠部の振動や風切り音に起因する騒音も抑制することができる。
【００４４】
（５）前記気流切替板の長辺が前記チャンバ内面に当接するまで前記気流切替板を移動させたとき、前記気流切替板を前記長辺と平行な軸を中心に回動させ傾斜状態に保持するための傾動機構を設けることにより、吹出用開口から斜めに吹き出すことが可能となるので、吹出用開口面からの気流吹出方向の多様性が増し、使用条件に適した高効率の空調を行うことができる。
【００４５】
（６）前記吹出用開口面から前記チャンバ内に２５ｍｍ〜４０ｍｍ引っ込んだ位置に前記気流切替板を配置することにより、吹出用開口から手を差し込んで気流切替板の位置変更を行う際の作業性が良好となるだけでなく、気流吹出方向を水平に設定した場合の気流変向作用が最も大となる。
【００４６】
（７）前記給気用接続口の開閉および開度設定を行うため互いに接近、離隔可能な複数の開閉部材と、前記吹出用開口から手を差し込んで前記開閉部材の開閉および開度設定を行うための操作部材とを設けることにより、吹出用開口からの手動操作で気流吹出方向の調節から独立した吹出流量調節が可能となるため、簡単な操作で使用条件に適した微妙な空調条件の設定を行うことができる。
【図面の簡単な説明】
【図１】（ａ）は本発明の実施の形態であるラインディフューザを示す側面図、（ｂ）はラインディフューザの底面図である。
【図２】図１（ａ）のＡ−Ａ線における一部省略断面図である。
【図３】（ａ）は図１に示すラインディフューザの透視側面図、（ｂ）は気流切替板の平面図である。
【図４】図３（ａ）の部分拡大図である。
【図５】気流切替板の使用状態を示す説明図である。
【図６】気流切替板の使用状態を示す説明図である。
【図７】開閉機構の使用状態を示す説明図である。
【図８】図１に示すラインディフューザからの気流吹出状態を示す説明図である。
【図９】従来のラインディフューザからの気流吹出状態を示す説明図である。
【符号の説明】
１ラインディフューザ
２チャンバ
２ａ側板
３給気用接続口
４吹出用開口
４ａ，５ｃ短辺
４ｂ，５ａ，５ｂ長辺
５気流切替板
５ｄ切替具
６導流部材
７支持部材
７ａ上辺
７ｂ斜辺
８板バネ
１０操作部材
１１，１２開閉部材
１１ａ，１２ａラック
１１ｃ，１２ｃ開口
１３，１４，１５，１６，１７開口部
１８閉塞部材
１９係止具
２０ピニオンギア
５１，５２，５３，５４切欠部
Ｓ１，Ｓ２隙間
Ｋ１，Ｋ２，Ｋ３，Ｋ４気流[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a line diffuser installed above a ceiling surface in order to blow conditioned air supplied from an air conditioner into a room.
[0002]
[Prior art]
In recent years, the use of so-called system ceilings has increased from the viewpoint of indoor aesthetics and the speed of construction. However, these system ceilings are used as vents for conditioned air blown from air conditioning equipment on the ceiling surface. A line diffuser having a long rectangular air outlet opening at its lower surface is often used.
[0003]
As conventional techniques related to the present application, for example, there are line diffusers disclosed in Japanese Utility Model Laid-Open Nos. 51-24041, 51-71064, and 7-31075.
[0004]
The line diffuser disclosed in Japanese Utility Model Laid-Open No. 51-24041 is an elastic support fitting provided on both ends of a blade on a V-shaped guide having irregularities provided on an inner surface of a longitudinal end portion of a chamber. The airflow blowing direction is set by changing the locking angle of the blades by moving the elastic support fitting along the guides together with the blades.
[0005]
The line diffuser disclosed in Japanese Utility Model Laid-Open No. 51-71064 has a structure in which eccentric shafts protruding from both longitudinal ends of the blades are rotatably locked to both longitudinal ends of the air outlet opening. The airflow blowing direction is set by changing the inclination angle of the blade by rotating the blade around the eccentric shaft.
[0006]
The two-blade facing diffuser disclosed in Japanese Utility Model Publication No. 7-31075 is rotatable in a state where two blades are entangled with a support shaft that is installed along the longitudinal direction of the outlet opening. This is a locked structure, and the direction of air flow and the air volume are set by changing the opening and inclination angle of the two blades.
[0007]
[Problems to be solved by the invention]
The line diffuser disclosed in Japanese Utility Model Laid-Open No. 51-24041 has poor reproducibility of the blade position because it is difficult to return the blade to the place where it was once set and set it back to the original airflow direction. In addition, the line diffuser disclosed in Japanese Utility Model Publication No. 51-71064 is not reproducible in the position of the blade, as in the case of the above-described line diffuser, because the blade angle adjustment is performed depending on the human sense.
[0008]
On the other hand, in the case of the two-blade opposed diffuser disclosed in Japanese Utility Model Publication No. 7-31075, the blade position is difficult to adjust, and the blade position is not reproducible. Because (noise, pressure loss) changes, fine adjustment is required. Also, if the air volume is changed by changing the opening of the blade, the blowing direction will also change.
[0009]
Furthermore, as shown in FIG. 9, in the conventional line diffuser 90 including the line diffuser disclosed in the publication, when the blowing direction of the conditioned air 94 fed to the duct connection port 95 is set in the horizontal direction, The airflows 91 and 92 blown out from the opening 96 may stick to the ceiling surface C, and air conditioning efficiency may deteriorate.
[0010]
That is, since the airflows 91 and 92 along the ceiling C have a high speed and a long reach distance, when there are other line diffusers 97 and 98 in the vicinity, they interfere with the airflow blown out from them, causing a draft, The reaching distance is further extended by combining with the airflow blown out from the airflow to become an integrated airflow covering the entire ceiling C of the room 99, thereby inhibiting the diffusion of the cooling air and reducing the air conditioning efficiency. In addition, the airflow 91 that has moved along the ceiling C of the room 99 collides with the wall surface W and descends, and a draft may be generated as the cooling air moves over the floor F.
[0011]
The problem to be solved by the present invention is a line diffuser in which the adjustment of the blowing direction of conditioned air is easy, the reproducibility of the blowing direction is good, the performance change due to the change in the blowing direction is extremely small, and the air conditioning efficiency is also high. Is to provide.
[0012]
[Means for Solving the Problems]
The line diffuser of the present invention faces a box-shaped chamber having a connection port for supplying air for introducing conditioned air, a rectangular blowing opening for blowing the introduced conditioned air, and the blowing opening in the chamber. A rectangular airflow switching plate disposed at a position so as to be movable in the short side direction of the blowing opening and having a short side shorter than the short side of the blowing opening; and a short side along the long side of the blowing opening, Gap formation for leaving a gap in at least a part between the flow guide member projecting in a parallel direction and the airflow switching plate until the long side of the airflow switching plate contacts the inner surface of the chamber Means.
[0013]
With such a configuration, the blowing direction of the conditioned air introduced into the chamber from the supply connection port depends on the positional relationship between the airflow switching plate and the space between the chamber inner surface and the flow guide member. The airflow is determined within the range from the direction perpendicular to the plane and parallel to the plane, and the airflow switching plate located at the position facing the blowout opening is inserted in the blowout opening and the airflow within the above range is simply moved in the short side direction. Since the blowing direction can be changed, adjustment of the blowing direction of the conditioned air is easy, and the position of the airflow switching plate can be visually confirmed from the blowing opening, so that the reproducibility of the blowing direction is good.
[0014]
In addition, the airflow switching plate is flat, and the flow area of the blowout opening does not change with the movement, and pressure loss and noise do not change. Is extremely small. Furthermore, when one long side of the airflow switching plate is in contact with the inner surface of the chamber, the airflow blown out from the gap between the long side and the inner surface of the chamber toward the blowout opening is generated between the other long side and the inner surface of the chamber. This prevents airflow that blows out from moving along the same plane as the blowout opening surface, so that it is possible to eliminate the occurrence of drafts when blowing cooling air and diffusion defects due to sticking of cooling air to the ceiling surface. High air conditioning efficiency can be obtained.
[0015]
Here, as the gap forming means, by providing a notch on both or one long side of the airflow switching plate, a gap is formed when the long side with the notch contacts the inner surface of the chamber. To prevent the airflow that blows out from the blowout opening from sticking to the ceiling surface in order to exert the effect of separating the airflow that tries to stick to the ceiling surface (substantially the same surface as the blowout opening surface). Can do. For this reason, it becomes possible to easily perform the layout design of the air outlet (line diffuser) in consideration of airflow interference. Moreover, since the position of a notch part and a notch depth can be selected according to use conditions, the airflow as needed is obtained.
[0016]
In this case, by providing the notch in a region including a portion located at the shortest distance from the supply connection port on the long side of both or one of the air flow switching plates, respectively. Since the gap is located in the part where the flow rate of conditioned air introduced from the air connection port is the largest, the above-described action of preventing the air flow from sticking to the ceiling surface becomes larger, and an air flow swollen downward can be obtained. it can. For this reason, it becomes possible to easily perform the layout design of the air outlet in consideration of airflow interference, and high air conditioning efficiency can be obtained.
[0017]
Further, when the air flow switching plate is moved until one long side of the air flow switching plate contacts the inner surface of the chamber, a closing member for closing the notch portion of the other long side of the air flow switching plate is provided. It is desirable to arrange it adjacent to the airflow switching plate. If such a blocking member is provided, the notch on the long side located on the side not in contact with the inner surface of the chamber is closed with the blocking member, so that the airflow passes through the notch exposed in the flow path. The generated vertical downward airflow can prevent the airflow switching plate's original airflow diverting function from being obstructed, and there is also noise caused by vibration and wind noise generated when the airflow passes through the notch exposed in the flow path. Can be suppressed.
[0018]
Further, when the airflow switching plate is moved until the long side of the airflow switching plate contacts the inner surface of the chamber, the airflow switching plate is rotated around an axis parallel to the long side and held in an inclined state. By providing a tilting mechanism for this purpose, it becomes possible to guide the conditioned air introduced into the chamber in an oblique direction toward the blowing opening surface with the inclined airflow switching plate and to blow out obliquely from the blowing opening. The diversity of the direction of airflow blowing from the blowing opening surface is increased, and highly efficient air conditioning suitable for the use conditions can be performed.
[0019]
Furthermore, by arranging the air flow switching plate at a position retracted from the blowing opening surface into the chamber by 25 mm to 40 mm, the air flow switching plate is positioned appropriately above the flow guide member. Therefore, not only the workability when changing the position of the airflow switching plate by inserting a hand from the opening for blowing is improved, but when the airflow blowing direction is set to be horizontal, the airflow turning action is maximized. . In addition, if the distance between the blowing opening surface and the airflow switching plate is too short, only the action of blocking the airflow occurs, and if the distance is too long, the direction of the airflow once redirected by the airflow switching plate is the original. It will return to a state and the function as an airflow switching board will fall.
[0020]
On the other hand, in order to open / close and set the opening of the air supply connection port, to open / close and set the opening / closing of the opening / closing member by inserting a hand from a plurality of opening / closing members that can approach and separate from each other and the blowing opening With the operation member, it is possible to adjust the blowout flow rate independent of the adjustment of the airflow blowing direction by manual operation from the blowout opening, making it possible to set delicate air conditioning conditions suitable for use conditions with simple operation. It can be carried out.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1A is a side view showing a line diffuser according to an embodiment of the present invention, FIG. 1B is a bottom view of the line diffuser, and FIG. 2 is a part of the line AA in FIG. 3 (a) is a perspective side view of the line diffuser shown in FIG. 1, FIG. 3 (b) is a plan view of the airflow switching plate, and FIG. 4 is a partially enlarged view of FIG. 3 (a).
[0022]
As shown in FIGS. 1-4, in the line diffuser 1 of this embodiment, in order to introduce conditioned air into one side surface of a box-shaped chamber 2 formed of a metal plate and having a substantially trapezoidal shape in a side view. The air supply connection port 3 is provided, and a rectangular blowout opening 4 for blowing out the conditioned air introduced into the chamber 1 is provided on the bottom surface of the chamber 1, at a position facing the blowout opening 4 in the chamber 1. A rectangular airflow switching plate 5 having a short side 5c shorter than the short side 4a is disposed so as to be movable in the short side direction X of the blowout opening 4, and is parallel to the short side 4a along the long side of the blowout opening 4. A flow guide member 6 protruding in the direction is provided.
[0023]
Both short side portions 5 c of the airflow switching plate 5 are slidably mounted on substantially trapezoidal support members 7 provided at both ends in the chamber 2, and are suspended on the inner surface of the side plate 2 a constituting the chamber 2. Since the lower curved portions 8a of the plurality of substantially fish-shaped leaf springs 8 fixed to the bottom are held in a state of pressing the upper surface of the airflow switching plate 5, the airflow switching plate 5 extends along the upper side 7a of the support member 7. The airflow switching plate 5 is slidable in the direction of the short side 5c, and at the position where either of the long sides 5a, 5b of the airflow switching plate 5a contacts the inner surface of the side plate 2a of the chamber 2, the airflow switching plate 5 The support member 7 is held in a state of being inclined at 45 degrees on the oblique side 7b of the support member 7 by rotating around a parallel axis.
[0024]
Further, a plurality of cutout portions 51, 52, 53 having different cutout depths are provided in the vicinity of the center of one long side 5a of the airflow switching plate 5, and the cutout depth is provided near the center of the other long side 5b. A notch portion 54 having a constant length is provided, and a plurality of switching tools 5 d for moving the airflow switching plate 5 by manual operation are formed in a hanging shape on the lower surface of the airflow switching plate 5.
[0025]
On the other hand, in the opening part in the chamber 2 of the air supply connection port 3, two open / close members that can slide in the horizontal direction to approach and separate from each other in order to open and close the air supply connection port 3 and set the opening degree. 11 and 12 and an operation member 10 for inserting a hand through the blowout opening 4 to open and close the opening and closing members 11 and 12 and to set the opening degree. The opening / closing mechanism by the opening / closing members 11 and 12 will be described later.
[0026]
Here, with reference to FIG. 5, the relationship between the setting position of the airflow switching plate 5 and the airflow blowing direction from the blowout opening 4 will be described. When the airflow switching plate 5 is disposed immediately above the upper side 7a of the support member 7 as shown in FIG. 5C, the two airflow switching plates 5 formed between the long sides 5a and 5b of the airflow switching plate 5 and the side plate 2a of the chamber 2 are arranged. The airflow that has passed through the opening 13 blows out from the blowout opening 4 directly below.
[0027]
Further, as shown in FIG. 5B or 5D, when the air flow switching plate 5 is moved until it abuts on any one of the side plates 2a, either of the long sides 5a, 5b of the air flow switching plate 5 and the side plate 2a The airflow that has passed through the openings 14 and 15 formed therebetween is guided by the flow guide member 6 positioned on the openings 14 and 15 side, and blows out from the blowing opening 4 in the horizontal direction.
[0028]
Next, as shown in FIG. (A) or (e), if either of the long sides 5a, 5b of the airflow switching plate 5 is inclined 45 degrees at a position where it abuts the side surface 2a, the airflow switching plate 5 The airflow that has passed through the openings 16 and 17 formed between one of the long sides 5a and 5b and the side plate 2a is guided and blown out by the flow guide member 6 and the airflow switching plate 5 positioned on the openings 16 and 17 side, respectively. It blows off from the opening 4 for 45 degrees.
[0029]
In this way, the direction of the conditioned air blown into the chamber 2 from the air supply connection port 3 is the space between the airflow switching plate 5 and the inner surface of the side plate 2a of the chamber 2 and the flow guide member 6 and the like. The switching tool 5d of the airflow switching plate 5 that is defined in the range from the direction perpendicular to the blowing opening surface to the direction parallel to the blowing opening surface and that faces the blowing opening 4 by inserting a hand from the blowing opening 4 Since the air flow blowing direction can be changed within the range simply by moving in the direction of the short side 5c, the air flow blowing direction can be easily adjusted, and the position of the air flow switching plate 5 can be visually confirmed from the blowing opening 4. Reproducibility is also good.
[0030]
Further, the airflow switching plate 5 has a flat plate shape, and the flow passage area of the blowout opening 4 does not change with the movement, and the pressure loss and noise do not change. The performance change is extremely small. In the present embodiment, since the airflow switching plate 5 is disposed at a position retracted 30 mm from the blowout opening 4 into the chamber 2, the airflow switching plate 5 is located at a position appropriately spaced above the flow guide member 6. Therefore, not only the workability when changing the position of the air flow switching plate 5 by inserting a hand from the blowout opening 4 is improved, but when the airflow blowing direction is set to be horizontal, the airflow turning action is Become the largest.
[0031]
Here, with reference to FIG. 6, the function of the notch parts 51-54 formed in the airflow switching board 5 is demonstrated. As shown in FIG. 6A, when the long side 5a of the airflow switching plate 5 is in contact with the inner surface of the side plate 2a facing the supply connection port 3, the side plate 2a and the airflow switching plate are formed by the notches 51, 52, 53. 5 is formed, the airflow K1 blown from the gap S1 toward the blowout opening 4 presses the airflow K2 blown from between the other long side 5b and the inner surface of the side plate 2a downward. The airflow K2 can be prevented from moving horizontally along substantially the same plane as the blowout opening surface.
[0032]
Similarly, as shown in FIG. 6B, when the long side 5b of the airflow switching plate 5 is in contact with the inner surface of the side plate 2a on the side where the supply connection port 3 is located, the side plate 2a and the airflow switching are performed by the notch 54. Since the gap S2 is formed between the plate 5 and the airflow K3 blown from the gap S2 toward the blowout opening 4, the airflow K4 blown from between the other long side 5a and the inner surface of the side plate 2a is pressed downward. In addition, the airflow K4 can be prevented from moving horizontally along substantially the same plane as the blowout opening surface.
[0033]
Thus, when the long sides 5a and 5b of the airflow switching plate 5 are in contact with any one of the side surfaces 2a, the gaps S1 and S2 are secured by the notches 51 to 54, and the airflows K1 and K3 blown out from these are the airflows K1 and K3. Since K2 and K4 are pressed downward, there is no diffusion failure due to the draft when cooling air is blown out as shown in FIG. 9 or the cooling air sticks to the ceiling surface, and from the blowout opening 4 of the line diffuser 1 As shown in FIG. 8, the blown airflows K1 and K4 are diffused in a swelled downward state, and no airflow interference occurs, so that high air conditioning efficiency is obtained.
[0034]
The notches 51 to 54 are formed on the long sides 5a and 5b of the airflow switching plate 5 through the central portions of the long sides 5a and 5b located at the shortest distance from the supply connection port 3 through the chamber 2, respectively. Since the gaps S1 and S2 are formed in the portion where the flow rate of the conditioned air introduced from the air supply connection port 3 is the largest, the pressing forces of the airflows K1 and K3 blown from the gaps S1 and S2 are large. Thus, the effect of preventing the airflow blown out from the blowout opening 4 from sticking to the ceiling surface becomes the greatest.
[0035]
Furthermore, when the airflow switching plate 5 is in the state of FIG. 6A or 6B, the notches 51 to 54 located on the side not in contact with the side plate 2a are adjacent to the lower surface of the airflow switching plate 5. Since it is blocked by the arranged blocking member 18, it is possible to suppress noise caused by vibration and wind noise generated when the airflows K2, K4 pass. Further, if the blocking member 18 is not provided, a vertically downward airflow may be generated through the notches 51 to 54 exposed in the flow path, and the original airflow diverting function of the airflow switching plate 5 may be deteriorated. Such an adverse effect can be prevented by closing the notches 51 to 54 with the closing member 18.
[0036]
Next, an opening / closing mechanism using the opening / closing members 11 and 12 will be described with reference to FIGS. 3 and 7. The two opening and closing members 11 and 12 can slide in the horizontal direction and can approach and separate from each other. As shown in FIG. 7A, the opening and closing members 11 and 12 are provided with rectangular openings 11c and 12c, The operation member 10 is formed integrally with the opening / closing member 12, and racks 11 a, 12 a are provided below the opening / closing members 11, 12.
[0037]
The open / close members 11 and 12 are arranged on the inner surface of the side plate 2a of the chamber 2 where the air supply connection port 3 is located so that the racks 11a and 12a face each other, and are slidably locked by a locking tool 19. The pinion gear 20 is engaged with the opposing racks 11a and 12a. Therefore, when the operating member 10 is moved in the horizontal direction, the opening / closing member 12 is moved simultaneously, the rack 12a formed below the opening / closing member 12 rotates the pinion gear 20, and the rack 11a is rotated by the rotation of the pinion gear 20. Horizontally moves the opening and closing member 11 in the opposite direction to the opening and closing member 12.
[0038]
In this way, by changing the position of the operation member 10 and changing the overlapping state of the openings 11c and 12c of the opening and closing members 11 and 12, the air supply opening 3 has a total as shown in FIG. A closed state, a half-open state as shown in FIG. 7C, or a fully-open state as shown in FIG. 7D can be selected. That is, since the blow flow rate can be adjusted independently of the adjustment of the air flow blowing direction by inserting the hand from the blow opening 4 and manually operating the operation member 10, the subtle air conditioning conditions suitable for the use conditions can be achieved with a simple operation. Can be set.
[0039]
【The invention's effect】
The present invention has the following effects.
[0040]
(1) A box-shaped chamber having a connection port for air supply and a rectangular blow-off opening, and arranged for movement in the short side direction of the blow-off opening at a position facing the blow-off opening in the chamber. A rectangular airflow switching plate having a short side shorter than the short side of the opening, a flow guide member projecting in a direction parallel to the short side along the long side of the blowout opening, and the long side of the airflow switching plate are chambers. When the airflow switching plate is moved until it comes into contact with the inner surface, it is equipped with a gap forming means for leaving a gap in at least a part between the two, so that the adjustment of the blowing direction of the conditioned air is easy and the reproduction of the blowing direction is achieved. The performance change due to the change in the blowing direction is extremely small.
[0041]
(2) As the gap forming means, by providing cutouts on both or one of the long sides of the airflow switching plate, the airflow blown out from the gap between the cutouts and the chamber inner surface causes the airflow to stick to the ceiling surface. Since the separating action is exhibited, it is possible to prevent the airflow blown horizontally from the blowout opening from sticking to the ceiling surface, and the layout design of the line diffuser in consideration of the interference of the airflow becomes easy. Moreover, since the position of a notch part and a notch depth can be selected according to use conditions, the airflow as needed is obtained.
[0042]
(3) By providing the notch in a region including a portion located at the shortest distance from the supply connection port on the long side of both or one of the airflow switching plates, respectively, Since the gap is located in the portion with the largest number, the effect of preventing the airflow from sticking to the ceiling surface is further increased, and an airflow swollen downward can be obtained. For this reason, it becomes possible to easily perform the layout design of the air outlet in consideration of airflow interference, and high air conditioning efficiency can be obtained.
[0043]
(4) A closing member for closing the notch portion of the other long side of the airflow switching plate when the airflow switching plate is moved until one long side of the airflow switching plate contacts the inner surface of the chamber. Is disposed adjacent to the airflow switching plate, it is possible to prevent the airflow diverting function of the airflow switching plate from deteriorating, and to suppress noise caused by vibration of the notch and wind noise. .
[0044]
(5) When the airflow switching plate is moved until the long side of the airflow switching plate contacts the inner surface of the chamber, the airflow switching plate is rotated around an axis parallel to the long side and held in an inclined state. By providing a tilting mechanism, it is possible to blow out obliquely from the blowout opening, thereby increasing the diversity of the airflow blowing direction from the blowout opening surface and performing highly efficient air conditioning suitable for use conditions be able to.
[0045]
(6) Workability at the time of changing the position of the airflow switching plate by inserting the hand from the airflow opening by disposing the airflow switching plate at a position retracted from 25 mm to 40 mm into the chamber from the blowing opening surface. Not only becomes favorable, but also the airflow turning action when the airflow blowing direction is set to be horizontal is maximized.
[0046]
(7) To open / close and set the opening of the air supply connection port, open / close and set the opening / closing of the opening / closing member by inserting a hand from a plurality of opening / closing members that can approach and separate from each other and the blowing opening. Because the flow rate can be adjusted independently from the adjustment of the air flow direction by manual operation from the blowout opening, setting of subtle air conditioning conditions suitable for the operating conditions is possible with simple operation. It can be performed.
[Brief description of the drawings]
FIG. 1A is a side view showing a line diffuser according to an embodiment of the present invention, and FIG. 1B is a bottom view of the line diffuser.
FIG. 2 is a partially omitted cross-sectional view taken along line AA in FIG.
3A is a perspective side view of the line diffuser shown in FIG. 1, and FIG. 3B is a plan view of an airflow switching plate.
FIG. 4 is a partially enlarged view of FIG.
FIG. 5 is an explanatory diagram showing a use state of an airflow switching plate.
FIG. 6 is an explanatory diagram showing a use state of an airflow switching plate.
FIG. 7 is an explanatory diagram showing a use state of the opening / closing mechanism.
FIG. 8 is an explanatory view showing an air flow blowing state from the line diffuser shown in FIG. 1;
FIG. 9 is an explanatory diagram showing an air current blowing state from a conventional line diffuser.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Line diffuser 2 Chamber 2a Side plate 3 Supply connection port 4 Outlet 4a, 5c Short side 4b, 5a, 5b Long side 5 Airflow switching plate 5d Switching tool 6 Current guide member 7 Support member 7a Upper side 7b Slope side 8 Leaf spring 10 Operating members 11, 12 Opening / closing members 11a, 12a Racks 11c, 12c Opening 13, 14, 15, 16, 17 Opening 18 Closing member 19 Locking tool 20 Pinion gears 51, 52, 53, 54 Notch S1, S2 Clearance K1, K2, K3, K4 Airflow

Claims

調和空気を導入する給気用接続口と、導入した調和空気を吹き出す矩形の吹出用開口とを有する箱体状のチャンバと、前記チャンバ内の前記吹出用開口に臨む位置に前記吹出用開口の短辺方向に移動可能に配置され前記吹出用開口の短辺より短い短辺を有する矩形の気流切替板と、前記吹出用開口の長辺に沿ってそれぞれ短辺と平行方向に突設された導流部材と、前記気流切替板の長辺が前記チャンバ内面に当接するまで前記気流切替板を移動させたとき両者間の少なくとも一部に隙間を残すための隙間形成手段とを備えたことを特徴とするラインディフューザ。A box-shaped chamber having an air supply connection port for introducing conditioned air, a rectangular blowout opening for blowing out the introduced conditioned air, and the blowout opening at a position facing the blowout opening in the chamber. A rectangular airflow switching plate disposed so as to be movable in the short side direction and having a short side shorter than the short side of the blowout opening, and protruded in a direction parallel to the short side along the long side of the blowout opening. A flow guide member, and a gap forming means for leaving a gap in at least part of the airflow switching plate when the airflow switching plate is moved until the long side of the airflow switching plate contacts the inner surface of the chamber. Characteristic line diffuser.

前記隙間形成手段として、前記気流切替板の両方または片方の長辺に切欠部を設けた請求項１記載のラインディフューザ。The line diffuser according to claim 1, wherein as the gap forming means, a notch portion is provided on both or one long side of the airflow switching plate.

前記気流切替板の両方または片方の長辺上においてそれぞれ前記給気用接続口から前記チャンバ内を経由して最短距離に位置する部分を含む部分に前記切欠部を設けた請求項２記載のラインディフューザ。3. The line according to claim 2, wherein the cutout portion is provided in a portion including a portion located at a shortest distance from the supply connection port on the long side of one or both of the airflow switching plates. Diffuser.

前記気流切替板の片方の長辺が前記チャンバの内面に当接するまで前記気流切替板を移動させたとき、前記気流切替板の他方の長辺の切欠部を閉塞するための閉塞部材を前記気流切替板に隣接させて配置した請求項２または３記載のラインディフューザ。When the airflow switching plate is moved until one long side of the airflow switching plate comes into contact with the inner surface of the chamber, a blocking member for closing the notch portion on the other long side of the airflow switching plate is used as the airflow. The line diffuser according to claim 2, wherein the line diffuser is disposed adjacent to the switching plate.

前記気流切替板の長辺が前記チャンバ内面に当接するまで前記気流切替板を移動させたとき、前記気流切替板を前記長辺と平行な軸を中心に回動させ傾斜状態に保持するための傾動機構を設けた請求項１〜４のいずれかに記載のラインディフューザ。When the airflow switching plate is moved until the long side of the airflow switching plate contacts the inner surface of the chamber, the airflow switching plate is rotated about an axis parallel to the long side and held in an inclined state. The line diffuser according to claim 1, further comprising a tilting mechanism.

前記吹出用開口面から前記チャンバ内に２５ｍｍ〜４０ｍｍ引っ込んだ位置に前記気流切替板を配置した請求項１〜５のいずれかに記載のラインディフューザ。The line diffuser according to any one of claims 1 to 5, wherein the airflow switching plate is disposed at a position retracted from the blowing opening surface by 25 mm to 40 mm into the chamber.

前記給気用接続口の開閉および開度設定を行うため互いに接近、離隔可能な複数の開閉部材と、前記吹出用開口から手を差し込んで前記開閉部材の開閉および開度設定を行うための操作部材とを設けた請求項１記載のラインディフューザ。A plurality of opening / closing members that can approach and separate from each other in order to open / close and set the opening of the air supply connection port, and an operation for opening / closing and setting the opening of the opening / closing member by inserting a hand from the blowing opening The line diffuser according to claim 1, further comprising a member.