JP4044821B2

JP4044821B2 - Supply / exhaust grill

Info

Publication number: JP4044821B2
Application number: JP2002293395A
Authority: JP
Inventors: 孝之吉村; 成昭落合
Original assignee: 株式会社アルデエンジニアリング; 株式会社Ｓｋｂ
Priority date: 2002-10-07
Filing date: 2002-10-07
Publication date: 2008-02-06
Anticipated expiration: 2022-10-07
Also published as: JP2004125338A

Description

【０００１】
【発明の属する技術分野】
本発明は、通気量を調整するための通気調整機構を備えた給排気用のグリルに関する。
【０００２】
【従来の技術】
住宅用の換気システムや、空気調和システムなどに適用される給排気用のグリルは、公知であり（例えば特許文献１参照）、この種のグリルにおいて、通気量を調整可能とすることも公知である（例えば特許文献２参照）。そこでは、半円状の半割ダンパーのそれぞれをグリル本体に軸支して、開閉操作部材で押し引き操作することにより、半割ダンパーを全閉状態（通路全開）と、全開状態（通路全閉）との間で開閉できるようにしている。開閉操作部材はＵ字状の弾性部材からなり、その突端部が半割ダンパーに連結され、室内側の端部に操作ノブを設けてある。
【０００３】
【特許文献１】
特開平１１−２９４８１５号公報（段落番号００１４、図２）
【特許文献２】
特開平１０−１５９１９８号公報（段落番号００２０−００２５、図４）
【０００４】
【発明が解決しようとする課題】
特許文献２に係るグリル構造によれば、半割ダンパーを開閉操作部材で全閉状態と全開状態との間で開閉して、グリル内の通気量を大小に調整できる。しかし、半割ダンパーや開閉操作部材の組み付けスペースを確保する必要があるので、既存のグリルには適用できない。一端が軸支された半割ダンパーは、開閉操作部材で押し引き操作して開閉するが、半開放状態の半割ダンパーに風圧が作用するとき、風圧に基づく外力が開閉操作部材に直接作用し、しかも外力の方向と開閉操作部材の押し引き方向とが一致するため、半開放状態を維持するのが難しい。
【０００５】
グリル本体の整流フィンの内側に配置したフィルターより内奥側には、半割ダンパーが配置されている。そのため、半割ダンパーの開閉状態を視認することができない。開閉操作部材の操作ノブの前後位置を確認することで、半割ダンパーのおおまかな開放状況を推測することはできるが、全開あるいは全閉くらいしか確認できない。さらに、開閉操作部材と半割ダンパーとの連結が外れていたとしても、レジスタを取り外してみない限りは、そのことを確認できない不便もある。
【０００６】
本発明の目的は、通路を開閉する調整弁と、調整弁を開閉操作する調整具とを備えており、グリル内の空気通過量を任意量に調整できる給排気用のグリルを提供することにある。本発明の目的は、新規のグリルはもちろん、既存のグリルに対しても付加装着できる通気調整機構を備えた給排気用のグリルを提供することにある。
【０００７】
本発明の目的は、調整弁を任意の半開放状態に維持でき、従ってグリル内の空気通過量を任意量に調整できる給排気用のグリルを提供することにある。本発明の目的は、グリル枠にフィルターが設けてあったとしても、調整弁の開放状態を目視によって正確に知ることができ、従って、グリルの通気量を適正に調整できる給排気用のグリルを提供することにある。本発明の目的は、調整具の変位量を正確に規定でき、従って通気量を適正に調整できる給排気用のグリルを提供することにある。
【０００８】
【課題を解決するための手段】
本発明の給排気用のグリルは、図１および図２に示すごとく、筒胴４の室内側の端部に多数個のルーバー壁６が平行に設けられているグリル本体１と、グリル本体１の通気量を調整する通気調整機構とを備えている。通気調整機構は、換気通路２を開閉する調整弁１０と、調整弁１０を開閉操作する一対の調整具１１とを含む。各調整具１１はルーバー壁６に、調整弁１０は一対の調整具１１に、それぞれ支持される。調整具１１をスライド変位させることにより、弁体１２が、図５に示すごとく換気通路２の殆どを塞ぐ開弁姿勢と、換気通路２の殆どを開放する閉弁姿勢との間で姿勢変位する。
【０００９】
調整弁１０は、図３に示すごとく所定形状に打ち抜かれたプラスチックシートを二つ折り状に折曲げて形成した一対の弁体１２と、弁体１２どうしを繋ぐヒンジ部１３と、各弁体１２の側端縁に一体形成した連結片１４とで構成する。
【００１０】
各調整具１１は、図３に示すごとく操作ノブ１９と、操作ノブ１９に装着固定されるスライドピース２０とを有する。各スライドピース２０に、各弁体１２の連結片１４が連結される。操作ノブ１９とスライドピース２０とでルーバー壁６を内外から挟持することにより、調整具１１がルーバー壁６で往復スライド可能に案内支持される。
【００１１】
各連結片１４は連結穴１５を有し、プラスチックシートを折り曲げてくせ付けすることにより形成した第２ヒンジ部１６を介して、弁体１２と繋がっている。各連結片１４は、連結穴１５を介して、各スライドピース２０の外側面に設けた係止爪２６に掛け止め装着されている。
【００１２】
隣接するルーバー壁６の間に差し込み係合されるスライド腕２３が、スライドピース２０に設けられており、スライドピース２０を操作ノブ１９に係合固定した状態において、スライド腕２３がルーバー壁６を弾性変形させており、スライド腕２３とルーバー壁６との摩擦抵抗によって、調整具１１を任意のスライド位置に保持できる。
【００１３】
ルーバー壁６には、図６に示すごとく複数個の位置決め体３０が形成されており、調整具１１のスライド開放位置を位置決め体３０で段階的に位置決めできる。
【００１４】
【発明の作用効果】
本発明では、調整弁１０を二つ折り可能に連結した一対の弁体１２で構成し、両弁体１２の少なくとも片方を、ルーバー壁６に沿って往復スライドする調整具１１で開閉操作することにより換気通路２を開閉して、グリルの通気量を調整できるようにしたので、調整具１１のスライド量に比例して弁体１２を開閉調整でき、グリル内の空気通過量を変更調整できる。空気の通過方向と直交するルーバー壁６に沿って調整具１１をスライド操作するので、風圧によって弁体１２に大きなモーメントが作用する場合にも、調整具１１が先のモーメントで移動操作されるのを阻止でき、調整弁１０を任意の半開放状態に維持して、グリル内の空気通過量を任意量に調整できる。
【００１５】
両弁体１２のそれぞれを調整具１１に連結して、一対の調整具１１で各弁体１２を開閉操作できるようにすると、各調整具１１のスライド量を任意量にすることにより、グリルを通過する空気量を多様に調整できる。必要があれば、片方の調整具１１のみをスライド操作して通気量を調整することにより、空気の給排気部位をグリル開口面の偏寄した位置に設定して、好みの方向に指向させることができる。一対の調整具１１の位置と、両弁体１２の開放量とが一致しているので、調整具１１のスライド位置を視認するだけで、弁体１２の開放量を明確に知ることができ、たとえルーバー壁６の内側にフィルターが配置してあって、弁体１２を覗き見ることができない場合でも、調整弁１０の開閉量と、弁体１２の開放量との偏りを知ることができる。
【００１６】
操作ノブ１９とスライドピース２０とで調整具１１を構成し、操作ノブ１９とスライドピース２０とでルーバー壁６を内外方向から挟持して、調整具１１をルーバー壁６でスライド自在に案内支持すると、同じ隣接間隔のルーバー壁６を備えたグリルに通気調整機構を付加装着できるので、既存のグリルであっても通気調整機構を付加して、グリルの通気量を変更調整できる。両弁体１２は、スライドピース２０に連結支持されていて、グリル本体１からは完全に分離独立しているので、グリル本体１に追加工を施す必要がなく、その点でも既存のグリルに対する取付作業が簡便に行える。
【００１７】
所定形状に打ち抜かれたプラスチックシートを二つ折り状に折曲げて形成した一対の弁体１２と、弁体１２どうしを繋ぐヒンジ部１３とを含む調整弁１０によれば、調整弁１０の構造を極限まで簡素化して、その製作コストを減少でき、構造が簡単な分だけ故障の可能性が低下して長期使用時の信頼性を向上できる。
【００１８】
操作ノブ１９とスライドピース２０とでルーバー壁６を内外に挟持した状態において、スライドピース２０に設けたスライド腕２３でルーバー壁６を弾性変形させると、スライド腕２３とルーバー壁６との摩擦抵抗で調整具１１を任意のスライド位置に位置保持して、調整具１１が遊動スライドするのを確実に防止できるので、調整弁１０を任意の半開放状態に維持できるうえ、弁体１２に大きな風圧が作用する場合にも、弁体１２の開放量が変化することもない。
【００１９】
ルーバー壁６に複数個の位置決め体３０を形成し、位置決め体３０で調整具１１を受け止めることにより、調整具１１のスライド開放位置を段階的に位置決めできるようにすると、調整具１１の変位量を所定量ずつ段階的に変更して、弁体１２の開放量を正確に規定できる。従って、弁体１２の開閉量を過不足なく設定して、通気量を適正に調整できるうえ、風圧によってスライドピース２０がスライド変位操作されることもない。
【００２０】
【実施例】
図１ないし図５は本発明に係る給排気用グリルを建物の外壁に設置して給気グリルとして使用する場合を示す。給気グリルは、グリル本体１と、グリル本体１の通気量を調整する通気調整機構とで構成する。図１において符号２は外壁を内外に貫通する円筒状の換気通路であり、その屋内側の端部にグリル本体１を嵌め込み装着してある。図示していないが、屋外側の通路端部には、水滴の侵入を防ぐフードが装着される。
【００２１】
グリル本体１は円筒状の筒胴４と、筒胴４の室内側の端部外周に連続して張り出るキャップ５と、筒胴４の室内側の端部寄りに多段状に設けたルーバー壁６とを一体に成形したプラスチック成形品からなる。筒胴４の周壁の内奥側は一定間隔置きに設けたスリット７で分割されており、径方向へ弾性変形可能な嵌合片８としてある。この嵌合片８と換気通路２との摩擦によって、グリル本体１は換気通路との装着状態を維持できる。図２において一群のルーバー壁６は、筒胴４を水平に横切る状態で平行に配置してあり、その上下中央部分に通気調整機構の調整具１１が装着されている。
【００２２】
通気調整機構は、換気通路２を開閉する調整弁１０と、調整弁１０を開閉操作する調整具１１とからなる。図３において調整弁１０は、概ね円形に打ち抜いたポリプロピレン製のシートを垂直線に沿って均等に二つ折りして得られた一対の弁体１２・１２と、弁体１２どうしを繋ぐヒンジ部１３とを備えている。両弁体１２・１２はヒンジ部１３を中心にして左右に開閉でき、開閉の度合いによって通気面積を変更し、換気通路２を通過する空気量を大小に調整できる。
【００２３】
各弁体１２の側端縁には長方形状の連結片１４が一体に形成されており、その上下中央に連結穴１５を打ち抜いてある。連結片１４は第２ヒンジ部１６を介して各弁体１２と繋がっており、両者１２・１４は相対的に屈曲できる。先のヒンジ部１３および第２ヒンジ部１６は、ポリプロピレン製のシートを折り曲げてくせ付けすることにより形成してあり、折り曲げられた方向へ戻ろうとする傾向がある。
【００２４】
両弁体１２を円形に拡開した状態における円弧周面の直径寸法は、筒胴４の内面直径寸法より僅かに小さく設定してある（図５（ｂ）参照）。換気通路２を弁体１２で全閉した状態においても、給気できるようにするためである。
【００２５】
調整具１１は左右一対の操作ノブ１９と、各操作ノブ１９に圧嵌装着されるスライドピース２０とで構成する。図３に示すように、操作ノブ１９は上下に長いプラスチック成形品からなり、スライドピース２０と対向する側の周面に、スライドピース２０用の装着穴２１が凹み形成されており、装着穴２１の上下壁に係合孔２２が貫通状に設けられている。図２および図４に示すように、操作ノブ１９の上下長さはルーバー壁６の概ね３ピッチ分の長さに一致している。
【００２６】
スライドピース２０は、上下中央のスライド腕２３と、スライド腕２３の上下に設けた一対の係合腕２４と、これら三者を繋ぐ縦基部２５とを一体に形成した、Ｅ字状のプラスチック成形品からなる。任意のスライド位置において調整具１１を遊動スライド不能に位置保持するために、スライド腕２３の上下厚みは、隣接するルーバー壁６の上下間隔より僅かに大きく設定してある。縦基部２５の外側面には、先の連結片１４を掛け止め装着するための係止爪２６が一体に形成されており、係合腕２４の遊端寄りには、操作ノブ１９の係合孔２２に落ち込み係合する係合爪２７が外向きに突設されている。
【００２７】
通気調整機構は、グリル本体１に対して以下の要領で組み付ける。まず、調整弁１０の各連結片１４をスライドピース２０の係止爪２６に連結し、両者１０・２０を分離不能に一体化する。次に、スライドピース２０のスライド腕２３を、中央のルーバー壁６の間に内面側から差し込む。この状態を維持したまま、操作ノブ１９の装着穴２１にスライド腕２３と係合腕２４の３者を差し込み、係合爪２７を係合孔２２に落ち込み係合させて、操作ノブ１９とスライドピース２０とを一体化する。
【００２８】
この組み付け状態においては、スライドピース２０の上下面が上下のルーバー壁６を僅かに弾性変形させている。そのため、調整具１１はルーバー壁６に沿って往復スライドできるにもかかわらず、スライド腕２３とルーバー壁６との接触面における摩擦抵抗によって、任意のスライド位置を位置保持できる。従って、調整弁１０に大きな風圧が作用する場合にも、弁体１２の開放量が変化することはなく、調整弁１０を任意の半開放状態に維持できることになる。
【００２９】
調整弁１０は、左右の操作ノブ１９をスライド操作することにより開閉される。いま図５（ａ）に示すように、両操作ノブ１９をルーバー壁６の中央に位置させると、両弁体１２は互いに接近して閉弁姿勢となり、換気通路２を全開放する。
【００３０】
逆に、図５（ｂ）に示すように、操作ノブ１９をルーバー壁６の両側端に位置させると、両弁体１２は互いに拡開して開弁姿勢となり、換気通路２の殆どを塞ぐ。その場合にも、弁体１２と筒胴４との間には僅かな隙間が残っており、この隙間から外気を取り入れることができる。
【００３１】
操作ノブ１９のスライド位置と弁体１２の開閉量とは常に一致する。そのため、操作ノブ１９のスライド位置を確認すれば弁体１２の開放量を即座に知ることができ、そのときの通気量を正確に推測できる。とくに、ルーバー壁６の内部にフィルターが配置されている場合でも、弁体１２の開放量を的確に知ることができる。
【００３２】
上記のように、通気調整機構は上下に隣接するルーバー壁６を利用して装着でき、しかも調整弁１０は調整具１１に支持されていて、グリル本体１からは完全に分離独立している。従って、筒胴４の直径寸法およびルーバー壁６の隣接間隔が同じであれば、通気調整機構を既存のグリルに対して問題なく取り付けることができる。また、調整弁１０が傷んだ場合の補修や交換も、グリル本体１を換気通路２から取り外すだけで簡単に行える。
【００３３】
図６ないし図８は、本発明のそれぞれ異なる別実施例を示す。図６に示すグリルは、スライドピース２０の上下の係合腕２４と対向する上下一対のルーバー壁６に、多数個の位置決め突起（位置決め体）３０を一定間隔おきに膨出形成してあり、操作ノブ１９をルーバー壁６に沿ってスライド開閉するとき、係合腕２４を位置決め突起３０で受け止めることにより、弁体１２の開放量を段階的に変更できる。
【００３４】
このように、操作ノブ１９の開放量を一定量ずつ段階的に変更できるようにしてあると、調整具１１の変位量を正確に規定できる。従って、弁体１２の開閉量を過不足なく設定して、通気量を適正に調整できる。風圧によってスライドピース２０がスライド変位することもよく防止できる。なお、操作ノブ１９は、位置決め突起３０の乗越え抵抗に逆らって全開位置と全閉じ位置との間をスライド操作でき、係合腕２４が位置決め突起３０を乗越えるときルーバー壁６は撓み変形する。他は先の実施例と同じであるので、同じ部材には同じ符号を付して、その説明を省略する。以下の実施例においても同様に扱う。
【００３５】
図７は位置決め体３０の別実施例を示しており、ルーバー壁６に複数個の凹部を形成して位置決め体３０とした。さらに、係合腕２４に弾性変形可能な係合片３１を設けて、係合片３１が位置決め体３０に落ち込み係合することによって、操作ノブ１９を段階的に位置決めできるようにしてある。
【００３６】
図８は調整弁１０の使い方が実施例１と異なる。詳しくは、先の例とは異なり調整弁１０を内外で逆向きに反転して、ヒンジ部１３がルーバー壁６側を向くようにした。そのために、スライドピース２０に連続して前後に長いブラケット３２を突設し、その突端に調整弁１０の連結片１４を固定した。
【００３７】
各実施例で説明したグリルは、排気用のグリルとして使用してもよい。
【図面の簡単な説明】
【図１】図２におけるＡ−Ａ線断面図である。
【図２】給排気グリルの正面図である。
【図３】通気調整機構の分解斜視図である。
【図４】図２におけるＢ−Ｂ線断面図である。
【図５】調整弁の開閉状態を示す背面図である。
【図６】通気調整機構の別実施例を示す正面図である。
【図７】位置決め体の別実施例を示す断面図である。
【図８】通気調整機構のさらに異なる別実施例を示す横断平面図である。
【符号の説明】
１グリル本体
２換気通路
４筒壁
６ルーバー壁
１０調整弁
１１調整具
１２弁体
１４連結片
１９操作ノブ
２０スライドピース
２３スライド腕
３０位置決め体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air supply / exhaust grill provided with a ventilation adjustment mechanism for adjusting the ventilation rate.
[0002]
[Prior art]
A supply / exhaust grill applied to a residential ventilation system, an air conditioning system, or the like is known (see, for example, Patent Document 1), and it is also known that the amount of ventilation can be adjusted in this type of grill. Yes (see, for example, Patent Document 2). There, each half-circular half damper is pivotally supported on the grill body and pushed and pulled by the open / close operation member, so that the half damper is fully closed (passage fully open) and fully open (passage fully open). Closed). The opening / closing operation member is made of a U-shaped elastic member, the protruding end portion of which is connected to the half damper, and the operation knob is provided at the indoor end portion.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-294815 (paragraph number 0014, FIG. 2)
[Patent Document 2]
Japanese Patent Laid-Open No. 10-159198 (paragraph number 0020-0025, FIG. 4)
[0004]
[Problems to be solved by the invention]
According to the grill structure according to Patent Literature 2, the half damper can be opened / closed between the fully closed state and the fully open state by the opening / closing operation member, so that the amount of air flow in the grill can be adjusted to be large or small. However, since it is necessary to secure an assembly space for the half damper and the opening / closing operation member, it cannot be applied to an existing grill. The half damper with one end pivotally supported is opened and closed by pushing and pulling with the opening and closing operation member, but when wind pressure acts on the half damper in the half open state, external force based on wind pressure directly acts on the opening and closing operation member. Moreover, since the direction of the external force and the pushing / pulling direction of the opening / closing operation member coincide with each other, it is difficult to maintain the half-open state.
[0005]
A halved damper is disposed on the inner side of the filter disposed inside the rectifying fins of the grill body. Therefore, the open / closed state of the half damper cannot be visually recognized. By confirming the longitudinal position of the operation knob of the opening and closing operation member, although it is possible to deduce a rough opening situation of the half damper, it can not be confirmed only about fully open or fully closed. Furthermore, even if the opening / closing operation member and the half damper are disconnected, there is an inconvenience that it cannot be confirmed unless the register is removed.
[0006]
An object of the present invention is to provide an air supply / exhaust grill that includes an adjustment valve that opens and closes a passage and an adjustment tool that opens and closes the adjustment valve, and that can adjust the amount of air passing through the grill to an arbitrary amount. is there. An object of the present invention is to provide an air supply / exhaust grill provided with a ventilation adjustment mechanism that can be additionally mounted on an existing grill as well as a new grill.
[0007]
An object of the present invention is to provide a supply / exhaust grill capable of maintaining an adjusting valve in an arbitrary semi-open state, and thus adjusting an air passing amount in the grill to an arbitrary amount. An object of the present invention is to provide a grill for air supply / exhaust that can accurately know the open state of the regulating valve visually even if a filter is provided on the grill frame, and accordingly can adjust the amount of ventilation of the grill appropriately. It is to provide. An object of the present invention is to provide a grill for air supply / exhaust that can accurately define the amount of displacement of the adjuster, and accordingly can adjust the amount of ventilation appropriately.
[0008]
[Means for Solving the Problems]
As shown in FIGS. 1 and 2, a grill for air supply / exhaust according to the present invention includes a grill main body 1 in which a large number of louver walls 6 are provided in parallel at the indoor end of the cylinder body 4, and the grill main body 1. And an air flow adjusting mechanism for adjusting the air flow rate. The ventilation adjustment mechanism includes an adjustment valve 10 that opens and closes the ventilation passage 2 and a pair of adjustment tools 11 that open and close the adjustment valve 10. Each adjustment tool 11 is supported by the louver wall 6, and the adjustment valve 10 is supported by the pair of adjustment tools 11. By sliding the adjuster 11, the valve element 12 is displaced between a valve opening posture that closes most of the ventilation passage 2 and a valve closing posture that opens most of the ventilation passage 2 as shown in FIG. 5. .
[0009]
As shown in FIG. 3, the regulating valve 10 includes a pair of valve bodies 12 formed by folding a plastic sheet punched into a predetermined shape into two, a hinge portion 13 connecting the valve bodies 12, and each valve body 12. The connecting piece 14 is formed integrally with the side edge of the.
[0010]
Each adjustment tool 11 includes an operation knob 19 and a slide piece 20 that is attached and fixed to the operation knob 19 as shown in FIG. A connecting piece 14 of each valve body 12 is connected to each slide piece 20. By holding the louver wall 6 from inside and outside by the operation knob 19 and the slide piece 20, the adjuster 11 is guided and supported by the louver wall 6 so as to be slidable back and forth.
[0011]
Each connecting piece 14 has a connecting hole 15 and is connected to the valve body 12 via a second hinge portion 16 formed by bending and attaching a plastic sheet. Each connecting piece 14 is latched and attached to a locking claw 26 provided on the outer surface of each slide piece 20 through a connecting hole 15.
[0012]
A slide arm 23 that is inserted and engaged between adjacent louver walls 6 is provided on the slide piece 20, and the slide arm 23 engages the louver wall 6 in a state where the slide piece 20 is engaged and fixed to the operation knob 19. It is elastically deformed, and the adjustment tool 11 can be held at an arbitrary slide position by the frictional resistance between the slide arm 23 and the louver wall 6.
[0013]
As shown in FIG. 6, a plurality of positioning bodies 30 are formed on the louver wall 6, and the slide opening position of the adjustment tool 11 can be positioned in stages by the positioning body 30.
[0014]
[Effects of the invention]
In the present invention, the adjustment valve 10 is constituted by a pair of valve bodies 12 that are foldably connected, and at least one of the both valve bodies 12 is opened and closed by an adjustment tool 11 that reciprocally slides along the louver wall 6. Since the ventilation passage 2 is opened and closed so that the amount of ventilation of the grill can be adjusted, the opening and closing of the valve body 12 can be adjusted in proportion to the sliding amount of the adjustment tool 11, and the amount of air passing through the grill can be changed and adjusted. Since the adjusting tool 11 is slid along the louver wall 6 orthogonal to the air passage direction, the adjusting tool 11 is moved and operated by the previous moment even when a large moment acts on the valve body 12 by the wind pressure. The adjustment valve 10 can be maintained in an arbitrary half-open state, and the amount of air passing through the grill can be adjusted to an arbitrary amount.
[0015]
By connecting each of the valve bodies 12 to the adjustment tool 11 so that the valve bodies 12 can be opened and closed by the pair of adjustment tools 11, the grille can be adjusted by making the slide amount of each adjustment tool 11 an arbitrary amount. Various amounts of air can be adjusted. If necessary, the air supply / exhaust part is set at a biased position of the grill opening surface by sliding only one of the adjusting tools 11 to adjust the air flow rate, and directed in the desired direction. Can do. Since the positions of the pair of adjusting tools 11 and the opening amounts of both valve bodies 12 coincide with each other, it is possible to clearly know the opening amount of the valve body 12 only by visually recognizing the slide position of the adjusting tools 11, Even if a filter is disposed inside the louver wall 6 and the valve body 12 cannot be seen, the deviation between the opening / closing amount of the regulating valve 10 and the opening amount of the valve body 12 can be known.
[0016]
When the operation knob 19 and the slide piece 20 constitute the adjustment tool 11, the operation knob 19 and the slide piece 20 hold the louver wall 6 from inside and outside, and the adjustment tool 11 is slidably guided and supported by the louver wall 6. Since a ventilation adjustment mechanism can be additionally mounted on a grill provided with the louver walls 6 having the same adjacent interval, the ventilation amount of the grill can be changed and adjusted by adding a ventilation adjustment mechanism even to an existing grill. Both valve bodies 12 are connected to and supported by the slide piece 20 and are completely separated and independent from the grill body 1, so there is no need to perform any additional work on the grill body 1, and in that respect, it is attached to an existing grill. Work can be done easily.
[0017]
According to the regulating valve 10 including a pair of valve bodies 12 formed by bending a plastic sheet punched into a predetermined shape into two and a hinge portion 13 that connects the valve bodies 12, the structure of the regulating valve 10 is as follows. It can be simplified to the limit, the manufacturing cost can be reduced, the possibility of failure is reduced by the simple structure, and the reliability during long-term use can be improved.
[0018]
If the louver wall 6 is elastically deformed by the slide arm 23 provided on the slide piece 20 in a state where the louver wall 6 is sandwiched between the operation knob 19 and the slide piece 20, the frictional resistance between the slide arm 23 and the louver wall 6 will be described. Thus, the adjustment tool 11 can be held at an arbitrary slide position to prevent the adjustment tool 11 from sliding freely, so that the adjustment valve 10 can be maintained in an arbitrary half-open state and a large wind pressure is applied to the valve body 12. Even when the act acts, the opening amount of the valve body 12 does not change.
[0019]
When a plurality of positioning bodies 30 are formed on the louver wall 6 and the adjusting tool 11 is received by the positioning body 30 so that the slide opening position of the adjusting tool 11 can be positioned stepwise, the amount of displacement of the adjusting tool 11 can be reduced. The opening amount of the valve body 12 can be accurately defined by changing the predetermined amount step by step. Accordingly, the opening / closing amount of the valve body 12 can be set without excess or deficiency, and the ventilation amount can be adjusted appropriately, and the slide piece 20 is not operated to be slid by the wind pressure.
[0020]
【Example】
1 to 5 show a case where the air supply / exhaust grill according to the present invention is installed on the outer wall of a building and used as an air supply grill. The air supply grill is composed of a grill main body 1 and a ventilation adjustment mechanism that adjusts the ventilation amount of the grill main body 1. In FIG. 1, reference numeral 2 denotes a cylindrical ventilation passage that penetrates the outer wall from the inside to the outside, and the grill body 1 is fitted and attached to an end portion on the indoor side. Although not shown in the figure, a hood for preventing the ingress of water droplets is attached to the end of the passage on the outdoor side.
[0021]
The grill body 1 includes a cylindrical cylinder body 4, a cap 5 that continuously protrudes from the outer periphery of the end portion on the indoor side of the cylinder body 4, and a louver wall provided in multiple steps near the end portion on the indoor side of the cylinder body 4. 6 is formed of a plastic molded product integrally formed. The inner back side of the peripheral wall of the cylindrical body 4 is divided by slits 7 provided at regular intervals, and serves as a fitting piece 8 that can be elastically deformed in the radial direction. Due to the friction between the fitting piece 8 and the ventilation passage 2, the grill body 1 can maintain the mounting state with the ventilation passage. In FIG. 2, a group of louver walls 6 are arranged in parallel so as to cross the cylinder body 4 horizontally, and an adjustment tool 11 of a ventilation adjusting mechanism is mounted on the upper and lower central portions thereof.
[0022]
The ventilation adjustment mechanism includes an adjustment valve 10 that opens and closes the ventilation passage 2 and an adjustment tool 11 that opens and closes the adjustment valve 10. In FIG. 3, the regulating valve 10 includes a pair of valve bodies 12, 12 obtained by equally folding a polypropylene sheet punched out into a circular shape along a vertical line, and a hinge portion 13 connecting the valve bodies 12. And. Both valve bodies 12 and 12 can be opened and closed left and right with the hinge portion 13 as the center, the ventilation area can be changed depending on the degree of opening and closing, and the amount of air passing through the ventilation passage 2 can be adjusted to be large or small.
[0023]
A rectangular connecting piece 14 is integrally formed on the side edge of each valve body 12, and a connecting hole 15 is punched out in the center in the vertical direction. The connecting piece 14 is connected to each valve body 12 through the second hinge portion 16, and both the members 12 and 14 can be bent relatively. The hinge part 13 and the second hinge part 16 are formed by folding and attaching a polypropylene sheet and tend to return to the folded direction.
[0024]
The diameter dimension of the circular arc peripheral surface in a state where both valve bodies 12 are expanded in a circular shape is set slightly smaller than the inner diameter diameter dimension of the cylinder body 4 (see FIG. 5B). This is because air can be supplied even when the ventilation passage 2 is fully closed by the valve body 12.
[0025]
The adjusting tool 11 includes a pair of left and right operation knobs 19 and a slide piece 20 that is press-fitted to each operation knob 19. As shown in FIG. 3, the operation knob 19 is made of a plastic molded product that is long in the vertical direction. A mounting hole 21 for the slide piece 20 is formed in the peripheral surface on the side facing the slide piece 20. The upper and lower walls are provided with engagement holes 22 in a penetrating manner. As shown in FIGS. 2 and 4, the vertical length of the operation knob 19 corresponds to the length of approximately three pitches of the louver wall 6.
[0026]
The slide piece 20 is an E-shaped plastic molding in which a slide arm 23 at the center of the upper and lower sides, a pair of engagement arms 24 provided on the upper and lower sides of the slide arm 23, and a vertical base 25 connecting these three members are integrally formed. It consists of goods. In order to hold the adjustment tool 11 in an unslidable position at an arbitrary slide position, the vertical thickness of the slide arm 23 is set to be slightly larger than the vertical interval between adjacent louver walls 6. On the outer surface of the vertical base portion 25, a locking claw 26 for hooking and mounting the previous connecting piece 14 is integrally formed, and the engagement of the operation knob 19 is closer to the free end of the engagement arm 24. An engaging claw 27 that falls into and engages with the hole 22 protrudes outward.
[0027]
The ventilation adjustment mechanism is assembled to the grill body 1 in the following manner. First, each connecting piece 14 of the regulating valve 10 is connected to the locking claw 26 of the slide piece 20, and the both 10 and 20 are integrated so as not to be separated. Next, the slide arm 23 of the slide piece 20 is inserted between the central louver wall 6 from the inner surface side. While maintaining this state, the three members of the slide arm 23 and the engagement arm 24 are inserted into the mounting hole 21 of the operation knob 19, and the engagement claw 27 is lowered into the engagement hole 22 to be engaged with the operation knob 19. The piece 20 is integrated.
[0028]
In this assembled state, the upper and lower surfaces of the slide piece 20 slightly elastically deform the upper and lower louver walls 6. Therefore, although the adjustment tool 11 can reciprocately slide along the louver wall 6, an arbitrary slide position can be held by the frictional resistance on the contact surface between the slide arm 23 and the louver wall 6. Therefore, even when a large wind pressure acts on the regulating valve 10, the opening amount of the valve body 12 does not change, and the regulating valve 10 can be maintained in an arbitrary half-open state.
[0029]
The adjustment valve 10 is opened and closed by sliding the left and right operation knobs 19. As shown in FIG. 5 (a), when the two operation knobs 19 are positioned at the center of the louver wall 6, the two valve bodies 12 come close to each other to be in a closed position, and the ventilation passage 2 is fully opened.
[0030]
On the other hand, as shown in FIG. 5B, when the operation knob 19 is positioned on both side ends of the louver wall 6, the two valve bodies 12 expand to each other into the valve-opening posture and block most of the ventilation passage 2. . Even in this case, a slight gap remains between the valve body 12 and the cylinder body 4, and outside air can be taken in through this gap.
[0031]
The slide position of the operation knob 19 and the opening / closing amount of the valve body 12 always coincide. Therefore, if the sliding position of the operation knob 19 is confirmed, the opening amount of the valve body 12 can be immediately known, and the ventilation amount at that time can be accurately estimated. In particular, even when a filter is disposed inside the louver wall 6, the opening amount of the valve body 12 can be accurately known.
[0032]
As described above, the ventilation adjustment mechanism can be mounted using the louver wall 6 adjacent to the upper and lower sides, and the adjustment valve 10 is supported by the adjustment tool 11 and is completely separated and independent from the grill body 1. Therefore, if the diameter dimension of the cylinder body 4 and the adjacent interval between the louver walls 6 are the same, the ventilation adjustment mechanism can be attached to the existing grill without any problem. Further, repair and replacement when the regulating valve 10 is damaged can be easily performed by simply removing the grill body 1 from the ventilation passage 2.
[0033]
6 to 8 show different embodiments of the present invention. The grill shown in FIG. 6 has a large number of positioning projections (positioning bodies) 30 bulging at regular intervals on a pair of upper and lower louver walls 6 facing the upper and lower engaging arms 24 of the slide piece 20. When the operating knob 19 is slid along the louver wall 6, the opening amount of the valve body 12 can be changed stepwise by receiving the engaging arm 24 with the positioning projection 30.
[0034]
Thus, if the opening amount of the operation knob 19 can be changed step by step by a certain amount, the displacement amount of the adjustment tool 11 can be accurately defined. Therefore, the opening / closing amount of the valve body 12 can be set without excess or deficiency, and the ventilation amount can be adjusted appropriately. It is possible to well prevent the slide piece 20 from being displaced by wind pressure. The operation knob 19 can be slid between the fully open position and the fully closed position against the resistance of the positioning protrusion 30 to go over. When the engaging arm 24 gets over the positioning protrusion 30, the louver wall 6 is bent and deformed. Since others are the same as the previous embodiment, the same members are denoted by the same reference numerals and description thereof is omitted. The same applies to the following embodiments.
[0035]
FIG. 7 shows another embodiment of the positioning body 30, and a plurality of recesses are formed in the louver wall 6 to form the positioning body 30. Further, the engagement arm 24 is provided with an elastically deformable engagement piece 31 so that the operation knob 19 can be positioned stepwise by the engagement piece 31 being lowered and engaged with the positioning body 30.
[0036]
FIG. 8 is different from the first embodiment in how the adjustment valve 10 is used . Specifically, unlike the previous example, the regulating valve 10 was inverted in the opposite direction so that the hinge portion 13 faced the louver wall 6 side. For this purpose, a long bracket 32 is provided in front of and behind the slide piece 20, and the connecting piece 14 of the adjustment valve 10 is fixed to the protruding end.
[0037]
The grill described in each embodiment may be used as an exhaust grill.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along line AA in FIG.
FIG. 2 is a front view of an air supply / exhaust grill.
FIG. 3 is an exploded perspective view of a ventilation adjustment mechanism.
4 is a cross-sectional view taken along line BB in FIG.
FIG. 5 is a rear view showing an open / close state of the regulating valve.
FIG. 6 is a front view showing another embodiment of the air flow adjusting mechanism.
FIG. 7 is a cross-sectional view showing another embodiment of the positioning body .
FIG. 8 is a cross-sectional plan view showing still another embodiment of the air flow adjusting mechanism .
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Grill body 2 Ventilation passage 4 Cylinder wall 6 Louver wall 10 Adjustment valve 11 Adjustment tool 12 Valve body 14 Connection piece 19 Operation knob 20 Slide piece 23 Slide arm 30 Positioning body

Claims

A grill body (1) in which a large number of louver walls (6) are provided in parallel at the indoor end of the cylinder body (4), and a ventilation adjusting mechanism for adjusting the ventilation amount of the grill body (1). Has
The ventilation adjustment mechanism includes an adjustment valve (10) for opening and closing the ventilation passage (2), and a pair of adjustment tools (11) for opening and closing the adjustment valve (10).
Each adjusting tool (11) is supported by the louver wall (6), and the adjusting valve (10) is supported by the pair of adjusting tools (11).
The regulating valve (10) includes a pair of valve bodies (12) formed by folding a plastic sheet punched into a predetermined shape into two, a hinge portion (13) connecting the valve bodies (12), A connecting piece (14) integrally formed on the side edge of the valve body (12),
Each adjustment tool (11) has an operation knob (19) and a slide piece (20) attached and fixed to the operation knob (19).
A connecting piece (14) of each valve body (12) is connected to each slide piece (20),
By holding the louver wall (6) from inside and outside by the operation knob (19) and the slide piece (20), the adjustment tool (11) is guided and supported by the louver wall (6) so as to be reciprocally slidable .
By slidably moving the adjuster (11), the valve element (12) is between a valve opening posture in which most of the ventilation passage (2) is closed and a valve closing posture in which most of the ventilation passage (2) is opened. A grill for air supply and exhaust whose posture is displaced .

Each connecting piece (14) has a connecting hole (15), and is connected to the valve body (12) via a second hinge part (16) formed by bending and attaching the plastic sheet,
2. The air supply / exhaust system according to claim 1 , wherein each connecting piece (14) is latched and attached to a locking claw (26) provided on the outer surface of each slide piece (20) via a connecting hole (15) . Grill.

A slide arm (23) to be inserted and engaged between adjacent louver walls (6) is provided on the slide piece (20),
In a state where the slide piece (20) is engaged and fixed to the operation knob (19), the slide arm (23) elastically deforms the louver wall (6),
The supply / exhaust grill according to claim 1 or 2 , wherein the adjusting tool (11) can be held at an arbitrary slide position by frictional resistance between the slide arm (23) and the louver wall (6) .

The air supply / exhaust according to claim 1 or 2 , wherein a plurality of positioning bodies (30) are formed on the louver wall (6), and the slide opening position of the adjuster (11) can be positioned stepwise by the positioning body (30). Grill .