JP4271821B2

JP4271821B2 - Ventilation equipment

Info

Publication number: JP4271821B2
Application number: JP2000047284A
Authority: JP
Inventors: 浩司田頭
Original assignee: Sahara KK
Current assignee: Sahara KK
Priority date: 2000-02-24
Filing date: 2000-02-24
Publication date: 2009-06-03
Anticipated expiration: 2020-02-24
Also published as: JP2001234673A

Description

【０００１】
【発明の属する技術分野】
本発明は、作動板を回動させて換気口を開閉する方式の換気装置に関する。
【０００２】
【従来の技術】
サッシ戸等に装着される換気装置には、装置本体に対して作動板をスライドさせ、このスライドに伴うカム作用を利用して作動板を回動させ、これにより、装置本体の壁に形成された換気口を開閉するタイプのものがある。このタイプの換気装置は、閉じ状態での密閉性が良いことが知られている。
【０００３】
上記従来の換気装置の要部を、図５、図６を参照しながら説明する。作動板１２０の上縁は、装置本体に、長手方向（図５、図６の左右方向）にスライド可能で、かつ回動可能に支持されている。この作動板１２０の下縁には、浅い切欠１２２が形成されている。この切欠１２２の中央には、切り残しによる突起１２２ａが形成されている。
【０００４】
他方、装置本体には、カム部材１３０が装着されている。このカム部材１３０の上面には傾斜溝１３１が形成されており、この傾斜溝１３１の両側の面がカム面１３１ａ，１３１ｂとして提供される。また、傾斜溝１３１の両端には装置本体の長手方向に延びる補助溝１３２，１３３が形成されており、これら補助溝１３２，１３３は、上記カム面１３１ａ，１３１ｂに連なる規制面１３２ａ，１３３ａをそれぞれ有している。
【０００５】
上記カム部材１３０の上部は上記作動板１２０の切欠１２２内に入り込んでおり、その突起１２２ａは、カム部材１３０の溝１３１，１３２，１３３のいずれかに位置している。
【０００６】
上記構成において、作動板１２０の突起１２２ａは、図５（Ａ），図６（Ａ）の閉じ位置において、規制面１３３ａに接している。この閉じ位置から図中左方向にスライドさせると、突起１２２ａがカム面１３１ａに当たり、さらにこのカム面１３１ａに案内される。この時のカム作用により、作動板１２０が回動して壁１１２から離れ、この壁１１２に形成された換気口を開く。図５（Ｂ），第６図（Ｂ）に示すように、この開き位置では突起１２２ａが規制面１３２ａに接している。
【０００７】
上記作動板１２０を上記開き位置から右方向へスライドさせると、突起１２２ａがカム面１３１ｂに当たり、さらにこのカム面１３１ｂに案内される。この時のカム作用により、作動板１２０が回動して壁１１２に近づき、この壁１１２に形成された換気口を閉じて、図５（Ａ），図６（Ａ）の状態に戻る。
【０００８】
【発明が解決しようとする課題】
上述した従来のカム手段では、カム部材１３０にカム面１３１ａ，１３１ｂを有する傾斜溝１３１を形成し、この溝１３１に突起１２２ａを入り込ませるようになっているが、この突起１２２ａは比較的強度が低いにも拘わらず、頻繁にカム面１３１ａ，１３１ｂに当たるので、長期使用により変形する可能性があり、より一層耐久性を高める工夫が求められていた。
【０００９】
また、このタイプの換気装置では、作動板１２０の切欠１２２の上縁近傍に装置本体の長手方向に延びるパッキンを貼りつけて、壁１１２との間のシール性を高めているが、雨を伴った強風の時に、外部から吹き込んで作動板１２０に付着された水滴が、この切欠１２２の上縁から回り込んでパッキンに達することがある。上記構造のカム手段では、切欠１２２の幅Ｗ’が大きいので、水滴がパッキンに回り込み易くなり、この水滴が室内に吹き込むこともあった。
【００１０】
【課題を解決するための手段】
本発明の第１の態様は、（イ）換気口を形成した壁を有する細長い装置本体と、
（ロ）上記装置本体の長手方向に沿って延びる一対の縁を有し、一方の縁が、装置本体に、長手方向にスライド可能かつ回動可能に支持された細長い作動板と、
（ハ）上記装置本体に設けられ、上記作動板を長手方向にスライドさせる操作部材と、
（ニ）上記作動板が長手方向にスライドする際に、作動板を回動させて、上記装置本体の換気口を開閉させるカム手段と、
を備えた換気装置において、上記カム手段は、上記作動板の他方の縁に形成された切欠と、装置本体に支持されてこの切欠に入り込んでいるカム部材とを含み、このカム部材において、装置本体の長手方向に対峙する一対の外面が、長手方向に対して傾斜した第１，第２のカム面を含み、上記作動板が長手方向に沿って一方向へスライドする際には、作動板の切欠の一方の端縁が上記第１カム面に案内され、そのカム作用により作動板が上記壁から離れる方向に回動されて、上記換気口を開き、上記作動板が長手方向に沿って逆方向へスライドする際には、作動板の切欠の他方の端縁が上記第２カム面に案内され、そのカム作用により作動板が上記壁に接近する方向に回動されて、上記換気口を閉じ、
上記カム部材において、装置本体の長手方向と直交する方向に対峙する一対の外面が、それぞれ長手方向と平行に延びる第１，第２の規制面を含み、壁から離れた第１規制面は上記第１カム面に連なっていて、開き位置の作動板が接するようになっており、壁に近い第２規制面は上記第２カム面に連なっていて、閉じ位置の作動板が接するようになっており、
上記第１カム面は上記第２規制面よりも更に壁に向かって延長され、上記第２のカム面は上記第１の規制面よりも更に壁から離れる方向に延長されており、
上記カム部材の形状は、上記第１，第２の規制面と上記第１，第２のカム面とを交差させて構成される略平行四辺形の基部と、第１、第２の凸部を備え、
上記第１凸部は、上記基部の第２規制面から上記壁に向かって突出するとともに上記第１カム面側に偏移しており、その一方の側面が上記第１カム面の延長部を提供し、
上記第２凸部は、上記基部の第２規制面から上記壁と反対側に突出するとともに上記第２カム面側に偏移しており、その一方の側面が、上記第２カム面の延長部を提供することを特徴とする。
【００１３】
本発明の第２の態様は、第１の態様において、上記カム部材が樹脂材料で形成され、このカム部材の基部には、上記第２規制面と第１凸部との間を抜ける縦溝が形成され、この縦溝と上記第２規制面との間が上記装置本体の長手方向に延びる弾性片として提供されることを特徴とする。
本発明の第３の態様は、第１の態様において、上記カム部材は、装置本体に固定される取付部と、この取付部から突出するとともに互いに離れたカム部および押さえ部とを有し、上記カム部は上記第１，第２のカム面と第１，第２の規制面を有し、上記押さえ部は上記壁側を向く押さえ面を有し、この押さえ面は、上記装置本体の長手方向と直交する方向に、作動板の厚さとほぼ等しい距離だけ、上記第１規制面から偏倚していることを特徴とする。
【００１４】
【発明の実施の形態】
以下、本発明の第１実施形態をなす換気装置について図１〜図３を参照しながら説明する。本実施形態の換気装置は、サッシ戸に装着されるものであり、より具体的にはサッシ戸の上框として装着されるものである。換気装置は、図１（Ａ）、（Ｂ）において紙面と直交する方向に水平に延びる中空の装置本体１０を備えている。この装置本体１０は、アルミ製の押出型材等からなる３つの型材１１，１２，１３を有している。室内側の型材１１と中間型材１２は、上下に配された一対の樹脂製の断熱ブリッジ１４により互いに離れて連結されている。中間型材１２と室外側の型材１３は、直接連結されている。室外側の型材１３の上部には、窓のレールが入り込むガイド部１５が形成されている。また、室内側の型材１１と中間型材１２の下部により、ガラス板の上縁を嵌め込むための嵌込部１６が形成されている。
【００１５】
上記装置本体１０内には、室内の空気と室外の空気とを換気するための換気通路１７が形成されている。上記型材１１，１２，１３はこの換気通路１７に配置された壁１１ａ，１２ａ，１３ａをそれぞれ有し、これら壁１１ａ，１２ａ，１３ａには、それぞれ換気口１１ｘ，１２ｘ，１３ｘが形成されている。各換気口１１ｘ，１２ｘ，１３ｘは、装置本体１０の長手方向に沿って並べられた多数のスリットにより構成されている。
【００１６】
上記室内側の型材１１と室外側の型材１３の換気口１１ｘ，１３ｘは、常時開放状態にあり、中間の型材１２の換気口１２ｘが作動板２０により、開閉されるようになっている。この作動板２０は、アルミ押出型材等の型材からなり、装置本体１０と同方向に細長く延び、中間型材１２と室外側型材１３との間に配置されている。作動板２０の上縁は断面円形をなして軸部２１となっている。中間型材１２の壁１２ａの上部には、長手方向に延びる軸受部１２ｂが形成されており、この軸受部１２ｂに作動板２０の軸部２１が挿入され、これにより、作動板２０は、長手方向にスライド可能かつ壁１２ａに対して回動可能に、装置本体１０に支持されている。
【００１７】
室内側の型材１１には、その長手方向に沿ってスライド可能に操作部材５０が設けられている。この操作部材５０は、作動板２０に形成された穴（図示しない）に入り込んでおり、これにより、操作部材５０のスライド操作により作動板２０も同方向にスライドするようになっている。
【００１８】
上記作動板２０は、長手方向のスライドに伴ってカム手段Ａのカム作用により回動するようになっている。カム手段Ａは、作動板２０の下縁に長手方向に離れて形成された複数例えば２個の浅い切欠２２（図２，図３にのみ示す）と、この切欠２２に対応した位置に配置された複数例えば２個の樹脂製のカム部材３０とで構成されている。
【００１９】
上記作動板２０の各切欠２２は、図３に示すように、作動板２０の長手方向に細長く延びて形成されている。この切欠２２の幅を、図２，図３においてＷで示す。
【００２０】
各カム部材３０の下部は取付部３１となって、中間型材１２の下部の取付凹部１２ｃに挿入固定されており、その上部はカム部３２となって上記作動板２０の切欠２２に入り込んでいる。
【００２１】
上記カム部材３０のカム部３２において、装置本体１０の長手方向に対峙する一対の外面は、それぞれ第１カム面３２ａ，第２カム面３２ｂを含んでいる。これらカム面３２ａ，３２ｂは垂直をなし、装置本体１０の長手方向に対して傾斜し、互いに平行をなしている。また、カム部３２において、装置本体１０の長手方向と直交する方向に対峙する一対の外面は、それぞれ第１規制面３２ｃ，第２規制面３２ｄを含んでいる。壁１２から離れた第１規制面３２ｃは、図２，図３において右側の第１カム面３２ａに連なっている。壁１２に近い方の第２規制面３２ｄは、左側の第２カム面３２ｂに連なっている。
上記第１カム面３２ａは、第２規制面３２ｄよりも壁１２に向かって延長されている。第２カム面３２ｂは、第１規制面３２ｃよりも壁１２から離れる方向に延長されている。
【００２２】
上記カム部材３０のカム部３２の平面形状について説明すると、図２に示すように、平行なカム面３２ａ，３２ｂと平行な規制面３２ｃ，３２ｄを仮想的に延長させて交差させることにより、平行四辺形からなる基部３２ｘが構成され、この基部３２ｘのカム面３２ａ側から壁１２に向かって第１凸部３２ｙが形成され、カム面３２ｂ側から壁１２と反対側に突出する第２凸部３２ｚが形成されている。これら凸部３２ｙ，３２ｚは、それぞれ上記カム面３２ａ，３２ｂの延長部を提供している。
【００２３】
図１（Ａ），（Ｂ）に示すように、上記作動板２０の室内側の面には、上記切欠２２の上縁近傍においてパッキン４０が貼り付けられ、室外側の面にはパッキン４０と同一高さにクッション材４１が形成されている。パッキン４０は、作動板２０の長手方向に延び、クション材４１は、長手方向に離れて複数設けられている。パッキン４０とクッション材４１は、スポンジ等で構成されている。
【００２４】
上記構成をなす換気装置の作用について説明する。図１（Ａ）に示すように、作動板２０の閉じ位置では、作動板２０は、壁１２ａと平行をなし、パッキン４０を介して壁１２ａに接している。その結果、換気口１２ｘが作動板２０により閉じられ、換気が停止された状態となる。この閉じ位置では、作動板２０はパッキン４０の弾性により、図２（Ａ）に示すようにカム部材３０の第２規制面３２ｄに接しており、がたつきなく閉じ位置を維持されている。
【００２５】
操作部材５０をスライド操作して、作動板２０を図２（Ａ），図３（Ａ）に示す閉じ位置から図中左方向にスライドさせると、作動板２０の切欠２２の右側の端縁が第１カム面３２ａに当たり、さらに作動板２０をスライドさせると、この切欠２２の端縁と第１カム面３２ａのカム作用により、作動板２０は壁１２から離れる方向に回動する。その結果、図１（Ｂ）に示すように、換気口１２ｘが開放され、換気が可能となる。
【００２６】
さらに、作動板２０をスライドさせると、図２（Ｂ），図３（Ｂ）に示すように、切欠２２の端縁が第１カム面３２ａから第１規制面３２ｃへと進む。この状態で、作動板２０のクッション材４１が室外側型材１３の角部１３ｂに当たり、作動板２０はこのクッション材４１の弾性により第１規制面３２ｃに接しているので、がたつきなく開き位置を維持される。
【００２７】
上記とは逆に、操作部材５０により、上記作動板２０を上記開き位置から右方向にスライドさせると、作動板２０の切欠２２の左側の端縁が第２カム面３２ｂに当たり、さらに作動板２０をスライドさせると、この切欠２２の端縁と第２カム面３２ｂのカム作用により、作動板２０は壁１２に接近する方向に回動し、これにより、図１（Ａ）に示すように、換気口１２ｘが閉じられ、換気が停止される。
【００２８】
さらに、作動板２０をスライドさせると、切欠２２の端縁が第２カム面３２ｂから第２規制面３２ｄへと進み、図２（Ａ），図３（Ａ）に示すように、作動板２０が第２規制面３２ｄに接する。
【００２９】
上述したように、カム部材３０の外面がカム面３２ａ，３２ｂを有しており、切欠２２の左右の端縁と協働して、作動板２０を開閉させるようになっているので、従来のような突起を作動板２０に形成せずに済み、耐久性を向上させることができる。
【００３０】
また、切欠２２の幅Ｗは、カム面３２ａ，３２ｂ間の距離に、規制面３２ｃ，３２ｄへ進む移動ストロークを加えた寸法で済むので、従来装置の切欠の幅に比べて小さくて済む。そのため、雨を伴った強風時に、作動板２０についた水滴が下降して切欠２２の上縁からパッキン４０に回り込む量を少なくすることができ、室内への水の吹き込みを最小限に抑えることができる。
【００３１】
次に、本発明の第２実施形態について、図４を参照しながら説明する。この実施形態において、装置本体の壁１２ａおよび作動板２０については、第１実施形態と同じであるが、樹脂製のカム部材８０の形状が第１実施形態のカム部材３０と異なる。このカム部材８０は、カム部材３０と同様に、下部が取付部８１となって、装置本体に固定されており、その上部がカム部８２となって上記作動板２０の切欠２２に入り込んでいる。このカム部８２は、カム部材３０と同様に、第１カム面８２ａ，第２カム面８２ｂ，第１規制面８２ｃ，第２規制面８２ｂを有している。
【００３２】
上記カム部材８０は、次の点でカム部材３０と異なる。すなわち、カム部８２において、ほぼ平行四辺形の平面形状を有する基部には、縦溝８２ｇが形成されており、これにより、装置本体の長手方向に延びる弾性片８２ｈが形成されている。この弾性片８２ｈの壁１２ａ側の面が上記第２規制面８２ｙとなっている。他方、取付部８１は特殊な平面形状を有しており、上記弾性片８２ｈから離れて、この弾性片８２ｈを拘束しないようになっている。
【００３３】
また、取付部８１には、上記カム部８２から離れて押さえ部８５が上方に突出するようにして形成されている。この押さえ部８５は、壁１２ａ側に平坦な押さえ面８５ａを有している。この押さえ面８５ａは、上記第１規制面８２ｃから室外側（装置本体の長手方向と直交する方向）に偏倚している。この押さえ面８５ａの第１規制面８２ｃからの偏倚量は、作動板２０の厚みとほぼ等しくなっている。
【００３４】
上記構成において、図４（Ａ）に示す作動板２０の閉じ位置では、作動板２０は、第２規制面８２ｙに接し、その弾性片８２ｈの弾性により、パッキンを介してより一層密着した状態で壁１２ａに押し付けられる。
【００３５】
図４（Ｂ）に示す作動板２０の開き位置では、第１規制面８２ｃと押さえ部材８５の押さえ面８５ａとの間で、作動板２０をがたつきなく保持することができる。この実施形態では、開き状態において、がたつきを回避するために作動板２０を装置本体に当てる必要がない。
【００３６】
【発明の効果】
本発明の第１の態様によれば、カム部材の外面に形成されたカム面と、切欠の端縁との間のカム作用により、作動板の開閉を行うようにしたので、作動板に突起を形成せずに済み、耐久性を向上させることができる。また、切欠の幅を狭くすることができるので、水密性も向上する。作動板を閉じ位置または開き位置で規制面により保持することができる。作動板を閉じ位置，開き位置からスライドさせる際に、切欠の端縁がカム面に当たり、確実にカム作用を実行することができる。基部と一対の凸部により一対のカム面と規制面を形成することができる。
本発明の第２の態様によれば、カム部材の弾性片の作用により、作動板の閉じ状態を良好に維持することができる。
本発明の第３の態様によれば、カム部と押さえ部とで作動板の開き状態を良好に維持することができる。
【図面の簡単な説明】
【図１】本発明の第１実施形態に係わる換気装置の縦断面図であり、（Ａ）は閉じ状態，（Ｂ）は開き状態を示す。
【図２】同換気装置の作動板とカム部材との関係を示す平断面図であり、（Ａ）は閉じ状態，（Ｂ）は開き状態を示す。
【図３】同換気装置の作動板とカム部材との関係を示す背面図（室外から見た図）であり、（Ａ）は閉じ状態，（Ｂ）は開き状態を示す。
【図４】本発明の第２実施形態に係わる換気装置において、作動板とカム部材との関係を示す平断面図であり、（Ａ）は閉じ状態，（Ｂ）は開き状態を示す。
【図５】従来の換気装置における作動板とカム部材との関係を示す平断面図であり、（Ａ）は閉じ状態，（Ｂ）は開き状態を示す。
【図６】従来の換気装置における作動板とカム部材との関係を示す背面図であり、（Ａ）は閉じ状態，（Ｂ）は開き状態を示す。
【符号の説明】
１０装置本体
１２ａ壁
１２ｘ換気口
２０作動板
２２切欠
３０、８０カム部材
３２ａ，８２ａ第１カム面
３２ｂ，８２ｂ第２カム面
３２ｃ，８２ｃ第１規制面
３２ｄ，８２ｄ第２規制面
３２ｘ基部
３２ｙ第１凸部
３２ｚ第２凸部
８２カム部
８２ｈ弾性片
８５押さえ部
８５ａ押さえ面[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ventilator of a type that opens and closes a ventilation opening by rotating an operation plate.
[0002]
[Prior art]
In a ventilation device attached to a sash door or the like, an operation plate is slid with respect to the device main body, and the operation plate is rotated using a cam action associated with the slide, thereby forming a wall of the device main body. There is a type that opens and closes the vent. This type of ventilator is known to have good hermeticity in the closed state.
[0003]
The main part of the conventional ventilator will be described with reference to FIGS. The upper edge of the operation plate 120 is supported by the apparatus main body so as to be slidable and rotatable in the longitudinal direction (left and right direction in FIGS. 5 and 6). A shallow notch 122 is formed at the lower edge of the operating plate 120. A protrusion 122a is formed at the center of the notch 122.
[0004]
On the other hand, a cam member 130 is attached to the apparatus main body. An inclined groove 131 is formed on the upper surface of the cam member 130, and surfaces on both sides of the inclined groove 131 are provided as cam surfaces 131a and 131b. Further, auxiliary grooves 132 and 133 extending in the longitudinal direction of the apparatus main body are formed at both ends of the inclined groove 131, and these auxiliary grooves 132 and 133 respectively have restriction surfaces 132a and 133a connected to the cam surfaces 131a and 131b. Have.
[0005]
The upper portion of the cam member 130 enters the notch 122 of the operating plate 120, and the protrusion 122 a is located in any of the grooves 131, 132, and 133 of the cam member 130.
[0006]
In the above configuration, the protrusion 122a of the operating plate 120 is in contact with the regulating surface 133a at the closed position in FIGS. 5 (A) and 6 (A). When the slider 122 is slid leftward from the closed position, the protrusion 122a hits the cam surface 131a and is further guided to the cam surface 131a. Due to the cam action at this time, the operation plate 120 is rotated away from the wall 112 and the ventilation port formed in the wall 112 is opened. As shown in FIGS. 5B and 6B, the protrusion 122a is in contact with the regulating surface 132a at this open position.
[0007]
When the operating plate 120 is slid rightward from the open position, the protrusion 122a hits the cam surface 131b and is further guided to the cam surface 131b. Due to the cam action at this time, the operation plate 120 rotates and approaches the wall 112, the ventilation port formed in the wall 112 is closed, and the state returns to the state of FIGS. 5 (A) and 6 (A).
[0008]
[Problems to be solved by the invention]
In the conventional cam means described above, the cam member 130 is formed with the inclined groove 131 having the cam surfaces 131a and 131b, and the protrusion 122a is inserted into the groove 131. However, the protrusion 122a has a relatively high strength. Although it is low, it frequently hits the cam surfaces 131a and 131b, so there is a possibility of deformation due to long-term use, and there has been a demand for further improvements in durability.
[0009]
Further, in this type of ventilation device, a packing extending in the longitudinal direction of the device main body is attached in the vicinity of the upper edge of the notch 122 of the working plate 120 to improve the sealing performance with the wall 112, but it is accompanied by rain. When the wind is strong, water droplets blown from the outside and attached to the working plate 120 may wrap around the upper edge of the notch 122 and reach the packing. In the cam means having the above structure, since the width W ′ of the notch 122 is large, water droplets can easily flow around the packing, and the water droplets sometimes blow into the room.
[0010]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided: (a) an elongated device body having a wall forming a ventilation port;
(B) an elongated operation plate having a pair of edges extending along the longitudinal direction of the apparatus main body, and one edge supported on the apparatus main body so as to be slidable and rotatable in the longitudinal direction;
(C) an operation member provided in the apparatus main body and sliding the operation plate in the longitudinal direction;
(D) cam means for rotating the operation plate when the operation plate slides in the longitudinal direction to open and close the ventilation opening of the apparatus body;
The cam means includes a notch formed on the other edge of the operating plate, and a cam member supported by the apparatus main body and entering the notch. A pair of outer surfaces facing the longitudinal direction of the main body include first and second cam surfaces inclined with respect to the longitudinal direction, and when the operating plate slides in one direction along the longitudinal direction, the operating plate One end edge of the notch is guided to the first cam surface, and the operating plate is rotated in a direction away from the wall by the cam action to open the ventilation port, and the operating plate is moved along the longitudinal direction. When sliding in the reverse direction, the other edge of the cutout of the operating plate is guided to the second cam surface, and the cam action rotates the operating plate in a direction approaching the wall, so that the ventilation port Close
In the cam member, the pair of outer surfaces facing each other in a direction orthogonal to the longitudinal direction of the apparatus main body includes first and second regulating surfaces extending in parallel with the longitudinal direction, and the first regulating surface separated from the wall is the above-described first regulating surface. It is connected to the first cam surface and comes into contact with the operating plate in the open position, and the second restricting surface close to the wall is connected to the second cam surface and comes into contact with the operating plate in the closed position. And
The first cam surface extends further toward the wall than the second restriction surface, and the second cam surface extends further away from the wall than the first restriction surface,
The cam member has a substantially parallelogram base formed by intersecting the first and second restricting surfaces and the first and second cam surfaces, and first and second convex portions. With
The first convex portion protrudes from the second restriction surface of the base portion toward the wall and is shifted to the first cam surface side, and one side surface thereof is an extension portion of the first cam surface. Offer to,
The second convex portion protrudes from the second restriction surface of the base portion to the side opposite to the wall and is shifted to the second cam surface side, and one side surface of the second convex portion is an extension of the second cam surface. A feature is provided .
[0013]
According to a second aspect of the present invention, in the first aspect, the cam member is formed of a resin material, and a longitudinal groove extending between the second restriction surface and the first convex portion is formed at a base portion of the cam member. And is provided as an elastic piece extending in the longitudinal direction of the apparatus main body between the longitudinal groove and the second restricting surface .
According to a third aspect of the present invention, in the first aspect, the cam member includes an attachment portion fixed to the apparatus main body, and a cam portion and a pressing portion that protrude from the attachment portion and are separated from each other. The cam portion has the first and second cam surfaces and the first and second restricting surfaces, and the pressing portion has a pressing surface facing the wall side. The first regulating surface is deviated by a distance substantially equal to the thickness of the working plate in a direction orthogonal to the longitudinal direction.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the ventilation apparatus which makes 1st Embodiment of this invention is demonstrated, referring FIGS. 1-3. The ventilator of this embodiment is attached to a sash door, and more specifically, is attached as an upper arm of the sash door. Ventilator, FIG. 1 (A), the has a hollow main body 10 which extends horizontally in a direction perpendicular to the paper surface in (B). The apparatus main body 10 has three mold members 11, 12, and 13 made of an extrusion mold member made of aluminum or the like. The indoor side mold material 11 and the intermediate mold material 12 are connected apart from each other by a pair of heat insulating bridges 14 made of resin arranged vertically. The intermediate mold 12 and the outdoor mold 13 are directly connected. A guide portion 15 into which a window rail enters is formed on the upper part of the outdoor mold 13. Further, a fitting portion 16 for fitting the upper edge of the glass plate is formed by the lower part of the indoor mold material 11 and the intermediate mold material 12.
[0015]
A ventilation passage 17 for ventilating indoor air and outdoor air is formed in the apparatus main body 10. The mold members 11, 12, and 13 have walls 11a, 12a, and 13a arranged in the ventilation passage 17, respectively, and ventilation holes 11x, 12x, and 13x are formed in the walls 11a, 12a, and 13a, respectively. . Each ventilation port 11x, 12x, 13x is comprised by many slits arranged along the longitudinal direction of the apparatus main body 10. As shown in FIG.
[0016]
The indoor side mold material 11 and the outdoor side mold material 13 have ventilation openings 11x and 13x that are always open, and the intermediate mold material 12 has a ventilation opening 12x that is opened and closed by the operating plate 20. The operation plate 20 is made of a mold material such as an aluminum extrusion mold material, extends in the same direction as the apparatus main body 10, and is disposed between the intermediate mold material 12 and the outdoor mold material 13. The upper edge of the actuating plate 20 forms a shaft portion 21 having a circular cross section. A bearing portion 12b extending in the longitudinal direction is formed on the upper portion of the wall 12a of the intermediate mold member 12, and the shaft portion 21 of the operating plate 20 is inserted into the bearing portion 12b. And is supported by the apparatus main body 10 so as to be slidable to the wall 12a.
[0017]
An operation member 50 is slidable along the longitudinal direction of the indoor mold 11. The operation member 50 enters a hole (not shown) formed in the operation plate 20, and the operation plate 20 is also slid in the same direction by a slide operation of the operation member 50.
[0018]
The operating plate 20 is rotated by the cam action of the cam means A along with the sliding in the longitudinal direction. The cam means A is arranged at a position corresponding to a plurality of, for example, two shallow notches 22 (shown only in FIGS. 2 and 3) formed in the lower edge of the actuating plate 20 in the longitudinal direction, and the notches 22. A plurality of, for example, two resin cam members 30 are included.
[0019]
As shown in FIG. 3, each notch 22 of the operation plate 20 is formed to be elongated in the longitudinal direction of the operation plate 20. The width of the notch 22 is indicated by W in FIGS.
[0020]
The lower part of each cam member 30 becomes an attachment part 31 and is inserted and fixed in the attachment recess 12c at the lower part of the intermediate mold member 12, and the upper part becomes a cam part 32 and enters the notch 22 of the operation plate 20. .
[0021]
In the cam portion 32 of the cam member 30, a pair of outer surfaces facing the longitudinal direction of the apparatus main body 10 includes a first cam surface 32a and a second cam surface 32b, respectively. These cam surfaces 32a and 32b are vertical, are inclined with respect to the longitudinal direction of the apparatus main body 10, and are parallel to each other. In the cam portion 32, a pair of outer surfaces facing each other in a direction orthogonal to the longitudinal direction of the apparatus main body 10 includes a first restriction surface 32c and a second restriction surface 32d , respectively. The first restricting surface 32c separated from the wall 12 is continuous with the first cam surface 32a on the right side in FIGS. The second restriction surface 32d closer to the wall 12 is continuous with the left second cam surface 32b.
The first cam surface 32a extends toward the wall 12 more than the second restricting surface 32d. The 2nd cam surface 32b is extended in the direction away from the wall 12 rather than the 1st control surface 32c.
[0022]
The planar shape of the cam portion 32 of the cam member 30 will be described. As shown in FIG. 2, parallel cam surfaces 32a and 32b and parallel restricting surfaces 32c and 32d are virtually extended to intersect with each other. A base 32x having a quadrilateral shape is formed, a first protrusion 32y is formed from the cam surface 32a side toward the wall 12 of the base 32x, and a second protrusion protruding from the cam surface 32b side to the opposite side of the wall 12 is formed. 32z is formed. These convex portions 32y and 32z provide extensions of the cam surfaces 32a and 32b, respectively.
[0023]
As shown in FIGS. 1 (A) and 1 (B) , a packing 40 is affixed to the inner surface of the working plate 20 in the vicinity of the upper edge of the notch 22, and a packing 40 is attached to the outer surface. The cushion material 41 is formed at the same height. The packing 40 extends in the longitudinal direction of the operation plate 20, and a plurality of the friction materials 41 are provided apart from each other in the longitudinal direction. The packing 40 and the cushion material 41 are made of sponge or the like.
[0024]
The operation of the ventilator having the above configuration will be described. As shown in FIG. 1A, in the closed position of the operation plate 20, the operation plate 20 is parallel to the wall 12 a and is in contact with the wall 12 a through the packing 40. As a result, the ventilation port 12x is closed by the operation plate 20, and the ventilation is stopped. In this closed position, the operating plate 20 is in contact with the second regulating surface 32d of the cam member 30 as shown in FIG. 2A due to the elasticity of the packing 40, and the closed position is maintained without rattling.
[0025]
When the operating member 50 is slid and the operating plate 20 is slid leftward from the closed position shown in FIGS. 2A and 3A, the right edge of the notch 22 of the operating plate 20 is moved. When the operating plate 20 is further slid by hitting the first cam surface 32a, the operating plate 20 rotates in a direction away from the wall 12 by the cam action of the end edge of the notch 22 and the first cam surface 32a. As a result, as shown in FIG. 1B, the ventilation port 12x is opened, and ventilation is possible.
[0026]
Further, when the operation plate 20 is slid, the edge of the notch 22 advances from the first cam surface 32a to the first restriction surface 32c, as shown in FIGS. In this state, the cushion material 41 of the operating plate 20 hits the corner 13b of the outdoor mold 13, and the operating plate 20 is in contact with the first regulating surface 32c due to the elasticity of the cushion material 41. Be maintained.
[0027]
Contrary to the above, when the operating plate 20 is slid rightward from the open position by the operating member 50, the left edge of the notch 22 of the operating plate 20 hits the second cam surface 32b, and further the operating plate 20 , The actuating plate 20 is rotated in a direction approaching the wall 12 by the cam action of the end edge of the notch 22 and the second cam surface 32b, and as shown in FIG. The ventilation port 12x is closed and ventilation is stopped.
[0028]
Further, when the operating plate 20 is slid, the edge of the notch 22 advances from the second cam surface 32b to the second restricting surface 32d, and as shown in FIGS. 2 (A) and 3 (A), the operating plate 20 Is in contact with the second regulating surface 32d.
[0029]
As described above, the outer surface of the cam member 30 has the cam surfaces 32a and 32b, and the operation plate 20 is opened and closed in cooperation with the left and right edges of the notch 22. It is not necessary to form such a projection on the operation plate 20, and durability can be improved.
[0030]
Further, the width W of the notch 22 can be smaller than the width of the notch of the conventional apparatus because the distance W between the cam surfaces 32a and 32b plus the movement stroke that advances to the restricting surfaces 32c and 32d is sufficient. Therefore, when strong winds with rain occur, the amount of water droplets on the working plate 20 descends and can be reduced from the upper edge of the notch 22 to the packing 40, and the amount of water blown into the room can be minimized. it can.
[0031]
Next, a second embodiment of the present invention will be described with reference to FIG. In this embodiment, the wall 12a of the apparatus main body and the operation plate 20 are the same as those of the first embodiment, but the shape of the resin cam member 80 is different from that of the cam member 30 of the first embodiment. Similar to the cam member 30, the lower portion of the cam member 80 is fixed to the apparatus main body with the mounting portion 81. The upper portion of the cam member 80 becomes the cam portion 82 and enters the notch 22 of the operating plate 20. . Similar to the cam member 30, the cam portion 82 includes a first cam surface 82a, a second cam surface 82b, a first restriction surface 82c, and a second restriction surface 82b.
[0032]
The cam member 80 is different from the cam member 30 in the following points. That is, in the cam portion 82, a longitudinal groove 82g is formed in a base portion having a substantially parallelogram-like planar shape, thereby forming an elastic piece 82h extending in the longitudinal direction of the apparatus main body. The surface of the elastic piece 82h on the wall 12a side is the second restriction surface 82y. On the other hand, the attachment portion 81 has a special planar shape, and is separated from the elastic piece 82h so as not to restrain the elastic piece 82h.
[0033]
Further, the attachment portion 81 is formed so that a pressing portion 85 protrudes upward away from the cam portion 82. The pressing portion 85 has a flat pressing surface 85a on the wall 12a side. The pressing surface 85a is biased from the first regulating surface 82c to the outdoor side (a direction perpendicular to the longitudinal direction of the apparatus main body). The amount of deviation of the pressing surface 85a from the first regulating surface 82c is substantially equal to the thickness of the operating plate 20.
[0034]
In the above configuration, in the closed position of the working plate 20 shown in FIG. 4A, the working plate 20 is in contact with the second restricting surface 82y, and is in a more closely contacted state through the packing due to the elasticity of the elastic piece 82h. It is pressed against the wall 12a.
[0035]
In the open position of the operation plate 20 shown in FIG. 4B, the operation plate 20 can be held without rattling between the first regulating surface 82c and the pressing surface 85a of the pressing member 85. In this embodiment, in the open state, it is not necessary to apply the operation plate 20 to the apparatus main body in order to avoid rattling.
[0036]
【The invention's effect】
According to the first aspect of the present invention, the operating plate is opened and closed by the cam action between the cam surface formed on the outer surface of the cam member and the edge of the notch. It is possible to improve the durability. Moreover, since the width of the notch can be narrowed, the watertightness is also improved . The operating plate can be held by the regulating surface in the closed position or the open position. When the operating plate is slid from the closed position and the open position, the edge of the notch hits the cam surface, and the cam action can be reliably executed . A pair of cam surfaces and a regulating surface can be formed by the base portion and the pair of convex portions.
According to the second aspect of the present invention, the closed state of the operating plate can be favorably maintained by the action of the elastic piece of the cam member.
According to the 3rd aspect of this invention, the open state of an action | operation board can be favorably maintained with a cam part and a holding | suppressing part.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a ventilating apparatus according to a first embodiment of the present invention, where (A) shows a closed state and (B) shows an opened state.
FIG. 2 is a cross-sectional plan view showing the relationship between the operating plate and the cam member of the ventilator, where (A) shows a closed state and (B) shows an open state.
FIGS. 3A and 3B are rear views (views from outside) showing a relationship between an operation plate and a cam member of the ventilation device, in which FIG. 3A shows a closed state and FIG. 3B shows an open state;
FIGS. 4A and 4B are plan sectional views showing a relationship between an operation plate and a cam member in a ventilation device according to a second embodiment of the present invention, in which FIG. 4A shows a closed state and FIG. 4B shows an open state.
FIGS. 5A and 5B are plan sectional views showing a relationship between an operation plate and a cam member in a conventional ventilation device, in which FIG. 5A shows a closed state and FIG. 5B shows an open state.
6A and 6B are rear views showing a relationship between an operation plate and a cam member in a conventional ventilator, where FIG. 6A shows a closed state and FIG. 6B shows an open state.
[Explanation of symbols]
10 Device body 12a Wall 12x Ventilation port 20 Actuation plate 22 Notch 30, 80 Cam members 32a, 82a First cam surface 32b, 82b Second cam surface 32c, 82c First restriction surface 32d, 82d Second restriction surface 32x Base 32y First 1 convex part 32z 2nd convex part 82 Cam part 82h Elastic piece 85 Holding part 85a Holding surface

Claims

(A) an elongated device body having a wall with a ventilation opening;
(B) an elongated operation plate having a pair of edges extending along the longitudinal direction of the apparatus main body, and one edge supported on the apparatus main body so as to be slidable and rotatable in the longitudinal direction;
(C) an operation member provided in the apparatus main body and sliding the operation plate in the longitudinal direction;
(D) cam means for rotating the operation plate when the operation plate slides in the longitudinal direction to open and close the ventilation opening of the apparatus body;
The cam means includes a notch formed on the other edge of the operating plate, and a cam member supported by the apparatus main body and entering the notch. A pair of outer surfaces facing the longitudinal direction of the main body include first and second cam surfaces inclined with respect to the longitudinal direction, and when the operating plate slides in one direction along the longitudinal direction, the operating plate One end edge of the notch is guided to the first cam surface, and the operating plate is rotated in a direction away from the wall by the cam action to open the ventilation port, and the operating plate is moved along the longitudinal direction. When sliding in the reverse direction, the other edge of the cutout of the operating plate is guided to the second cam surface, and the cam action rotates the operating plate in a direction approaching the wall, so that the ventilation port Close
In the cam member, the pair of outer surfaces facing each other in a direction orthogonal to the longitudinal direction of the apparatus main body includes first and second regulating surfaces extending in parallel with the longitudinal direction, and the first regulating surface separated from the wall is the above-described first regulating surface. It is connected to the first cam surface and comes into contact with the operating plate in the open position, and the second restricting surface close to the wall is connected to the second cam surface and comes into contact with the operating plate in the closed position. And
The first cam surface extends further toward the wall than the second restriction surface, and the second cam surface extends further away from the wall than the first restriction surface,
The cam member has a substantially parallelogram base formed by intersecting the first and second restricting surfaces and the first and second cam surfaces, and first and second convex portions. With
The first convex portion protrudes from the second restriction surface of the base portion toward the wall and is shifted to the first cam surface side, and one side surface thereof is an extension portion of the first cam surface. Offer to,
The second convex portion protrudes from the first restriction surface of the base portion to the opposite side of the wall and is shifted to the second cam surface side, and one side surface thereof is an extension of the second cam surface. Ventilator characterized by providing a part .

The cam member is formed of a resin material, and a vertical groove extending between the second restriction surface and the first convex portion is formed at a base portion of the cam member, and the vertical groove and the second restriction surface The ventilation apparatus according to claim 1 , wherein the ventilation apparatus is provided as an elastic piece extending in a longitudinal direction of the apparatus main body .

The cam member has a mounting portion fixed to the apparatus main body, and a cam portion and a pressing portion that protrude from the mounting portion and are separated from each other, and the cam portion includes the first and second cam surfaces and the first cam surface. 1 and a second restricting surface, and the pressing portion has a pressing surface facing the wall side, and the pressing surface is substantially equal to the thickness of the operation plate in a direction perpendicular to the longitudinal direction of the apparatus main body. The ventilation apparatus according to claim 1 , wherein the ventilation apparatus is deviated from the first regulation surface by a distance.