JP6839008B2 - Ventilation equipment and fittings - Google Patents

Ventilation equipment and fittings Download PDF

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JP6839008B2
JP6839008B2 JP2017055970A JP2017055970A JP6839008B2 JP 6839008 B2 JP6839008 B2 JP 6839008B2 JP 2017055970 A JP2017055970 A JP 2017055970A JP 2017055970 A JP2017055970 A JP 2017055970A JP 6839008 B2 JP6839008 B2 JP 6839008B2
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opening
blade member
frame
outer panel
ventilation device
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JP2018159207A (en
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崇司 堀井
崇司 堀井
一弥 柚木
一弥 柚木
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YKK AP Inc
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Description

本発明は、室内を換気する換気装置及び該換気装置を備えた建具に関する。 The present invention relates to a ventilation device for ventilating a room and fittings provided with the ventilation device.

住宅やビル等の建物の外壁には、窓と共に換気装置が設置されることがある。換気装置は窓を開放せずに室内を換気することができ、安全性や防犯性の面で利点がある。 Ventilation devices may be installed along with windows on the outer walls of buildings such as houses and buildings. The ventilation device can ventilate the room without opening the window, which has advantages in terms of safety and crime prevention.

例えば特許文献１には、枠体の開口部を開閉して室内への風量を調整する風量調整弁を備えた換気装置が開示されている。この構成では、開口部に介在する風量調整弁の先端部に弾性体を取り付け、この弾性体で風量調整弁を常時開き方向に付勢している。そして、開口部を通過する風量が増加した場合は、風量調整弁が増加した風圧に押圧され、弾性体の付勢力に抗して閉じ方向に移動する。これにより、室外で風が強い場合でも室内に吹き込む風量を調整可能となっている。 For example, Patent Document 1 discloses a ventilation device including an air volume adjusting valve that opens and closes an opening of a frame body to adjust the air volume into the room. In this configuration, an elastic body is attached to the tip of the air volume adjusting valve interposed in the opening, and the elastic body always urges the air volume adjusting valve in the opening direction. Then, when the air volume passing through the opening increases, the air volume adjusting valve is pressed by the increased wind pressure and moves in the closing direction against the urging force of the elastic body. This makes it possible to adjust the amount of air blown into the room even when the wind is strong outdoors.

特許第４３１４６３５号公報Japanese Patent No. 4314635

ところで、例えば換気装置の高さ寸法が異なる複数仕様の換気装置を提供する場合は、風量調整弁の高さ寸法も異なるため、それぞれの風量調整弁の重量や受ける風圧が異なる。このため、上記特許文献１の構成では、各仕様に応じて最適な弾性体のばね定数や個数、形状等をそれぞれについて選定する必要があり、製造コストや製造効率が低い。また、このような構成では、換気装置の使用時には常に風圧による負荷が弾性体に付与される。その結果、弾性体が劣化した場合には所望の風量調整が難しくなる可能性もある。 By the way, for example, when providing a ventilator having a plurality of specifications having different height dimensions of the ventilator, the height dimension of the air volume adjusting valve is also different, so that the weight and the received air pressure of each air volume adjusting valve are different. Therefore, in the configuration of Patent Document 1, it is necessary to select the optimum spring constant, number, shape, etc. of the elastic body according to each specification, and the manufacturing cost and manufacturing efficiency are low. Further, in such a configuration, a load due to wind pressure is always applied to the elastic body when the ventilation device is used. As a result, when the elastic body deteriorates, it may be difficult to adjust the desired air volume.

本発明は、上記従来技術の課題を考慮してなされたものであり、製造コストや製造効率を向上することができ、さらに耐久性も確保することができる換気装置及び該換気装置を備えた建具を提供することを目的とする。 The present invention has been made in consideration of the above-mentioned problems of the prior art, a ventilation device capable of improving manufacturing cost and manufacturing efficiency, and further ensuring durability, and a fitting provided with the ventilation device. The purpose is to provide.

本発明に係る換気装置は、室内外方向に連通する開口部を有した枠体と、前記開口部の室外側で該開口部を開閉する方向に移動することで該開口部を通過する風量を調整する羽根部材と、前記開口部の室内側で前記枠体に支持されて該開口部を開閉可能な内側パネルとを備えた換気装置であって、前記羽根部材は、前記枠体に対して回動自由に支持されると共に、前記開口部を開くように室外側に移動する開き方向に対して自重による負荷を受けているものであり、前記羽根部材の一側部には、前記枠体の縦枠に沿って延在する軸部材が設けられ、前記枠体には、前記軸部材を軸回りに回転自由に支持すると共に、前記軸部材の下向き端面と対面配置されて該下向き端面と当接することで前記羽根部材の重量を受け止める上向き端面を有した軸受部材が設けられ、前記軸部材の下向き端面及び前記軸受部材の上向き端面は、前記軸部材の軸方向に対して上下方向に傾斜する傾斜面であることを特徴とする。 The ventilation device according to the present invention has a frame having an opening that communicates in the indoor and outdoor directions, and an air volume that passes through the opening by moving in a direction that opens and closes the opening on the outdoor side of the opening. A ventilation device including a blade member to be adjusted and an inner panel supported by the frame body on the indoor side of the opening and capable of opening and closing the opening. It is freely rotatably supported and is loaded by its own weight with respect to the opening direction that moves outward so as to open the opening , and the frame body is provided on one side of the blade member. A shaft member extending along the vertical frame of the shaft member is provided, and the frame body supports the shaft member freely around the axis and is arranged to face the downward end surface of the shaft member to meet the downward end surface. A bearing member having an upward end face that receives the weight of the blade member by abutting is provided, and the downward end face of the shaft member and the upward end face of the bearing member are inclined in the vertical direction with respect to the axial direction of the shaft member. It is characterized by being an inclined surface.

このような構成によれば、羽根部材はその自重によって常時室外側への開き方向に負荷を受けている。このため、仮に換気装置の高さ寸法や幅寸法等のサイズを変更した場合であっても、羽根部材のサイズも同様に変更されることで、自重が増減し同時に風圧を受ける表面積も増減する。その結果、自重（重力）による開き方向の負荷の増減と、この自重に打ち勝つ風力の増減とが比例する。これにより、羽根部材のサイズにかかわらず、開口面積が室外での風力に応じた大きさに調整され、換気風量が一定に維持される。従って、弾性体を用いて羽根部材を開き方向に付勢する構造に比べて、製造コストや製造効率が向上し、弾性体の劣化も生じないため、耐久性も確保できる。さらに、羽根部材をその自重を利用して容易に開き方向に押圧することができると共に、強風時等には羽根部材を容易に閉じ方向へと回動させることができる。 According to such a configuration, the blade member is constantly loaded in the opening direction to the outdoor side due to its own weight. Therefore, even if the size of the ventilation device such as the height dimension and the width dimension is changed, the size of the blade member is also changed in the same manner, so that the weight of the ventilation device increases and decreases, and at the same time, the surface area that receives the wind pressure also increases and decreases. .. As a result, the increase / decrease in the load in the opening direction due to its own weight (gravity) is proportional to the increase / decrease in the wind force that overcomes this own weight. As a result, regardless of the size of the blade member, the opening area is adjusted to a size corresponding to the wind force outside the room, and the ventilation air volume is kept constant. Therefore, as compared with the structure in which the blade member is urged in the opening direction using the elastic body, the manufacturing cost and the manufacturing efficiency are improved, and the elastic body is not deteriorated, so that the durability can be ensured. Further, the blade member can be easily pressed in the opening direction by utilizing its own weight, and the blade member can be easily rotated in the closing direction in a strong wind or the like.

本発明に係る換気装置において、前記羽根部材は、前記自重による負荷のみが付与された状態では、少なくとも一部が前記枠体の室外側見付け面よりも室外側に張り出した回動位置となる構成であってもよい。そうすると、羽根部材と枠体との間に大きな開口面積の換気口を確保でき、無風や弱風時の換気量を十分に確保できる。また、羽根部材が室外側見付け面よりも室外側に張り出すことで、当該換気装置を設置した建物外壁に沿って流れた風（ビル風）を効率的に取り込むことができる。 In the ventilation device according to the present invention, the blade member is in a rotational position in which at least a part of the blade member projects outward from the outdoor side finding surface of the frame when only the load due to its own weight is applied. It may be. Then, a ventilation port having a large opening area can be secured between the blade member and the frame body, and a sufficient ventilation volume when there is no wind or a weak wind can be secured. Further, by projecting the blade member to the outdoor side rather than the outdoor side finding surface, the wind (building wind) flowing along the outer wall of the building in which the ventilation device is installed can be efficiently taken in.

本発明に係る換気装置において、前記羽根部材の室外側で前記枠体に支持されて前記開口部を開閉可能な外側パネルを備え、前記羽根部材及び前記外側パネルは、前記開口部の一側部にそれぞれ支持されると共に、前記羽根部材は、前記外側パネルに当接又は近接することで前記開き方向への回動が規制される構成であってもよい。そうすると、当該換気装置の非使用時には、常時自重による開き方向への負荷を受けている羽根部材を外側パネルによって容易に全閉位置まで収納できる。しかも羽根部材が室外側見付け面よりも室外側に張り出した場合は、外側パネルも同一方向を向いて室外側見付け面よりも室外側に張り出した状態となる。このため、ビル風をより効率的に取り込むことができる。 The ventilation device according to the present invention includes an outer panel that is supported by the frame on the outdoor side of the blade member and can open and close the opening, and the blade member and the outer panel are one side portion of the opening. The blade members may be configured to be restricted from rotating in the opening direction by abutting or approaching the outer panel. Then, when the ventilation device is not in use, the blade members that are constantly loaded in the opening direction due to their own weight can be easily stored up to the fully closed position by the outer panel. Moreover, when the blade member projects outside the outdoor side finding surface, the outer panel also faces the same direction and projects outside the outdoor side finding surface. Therefore, the building style can be taken in more efficiently.

本発明に係る換気装置において、前記羽根部材の先端部には、可撓性を有するタイト材が設けられ、前記タイト材は、前記羽根部材が前記外側パネルに当接又は近接した状態で該外側パネルの内面から室内側に向かって離間する方向に延在した構成であってもよい。そうすると、羽根部材の全開位置からの初期可動時にはタイト材で円滑に風圧を受けることができ、初期可動が円滑となる。またタイト材が可撓性を有することで、風圧によってタイト材が室内側に首を振るように変形することがある。そうすると、タイト材が室外からの風をより垂直に近い向きで受けることができるため、羽根部材の初期可動がより円滑となる。 In the ventilation device according to the present invention, a flexible tight material is provided at the tip of the blade member, and the tight material is provided in a state where the blade member is in contact with or close to the outer panel. The configuration may extend in a direction away from the inner surface of the panel toward the indoor side. Then, when the blade member is initially moved from the fully open position, the tight material can smoothly receive the wind pressure, and the initial movement becomes smooth. Further, since the tight material has flexibility, the tight material may be deformed so as to swing its head toward the room due to wind pressure. Then, since the tight material can receive the wind from the outside in a direction closer to vertical, the initial movement of the blade member becomes smoother.

本発明に係る建具は、上記構成の換気装置と、前記枠体の少なくとも一方の縦枠と連結された窓とを備えることを特徴とする。このような構成によれば、換気装置と窓を一体の建具として建物に設置でき、外観品質や施工効率が高い。 The fitting according to the present invention is characterized by including a ventilation device having the above configuration and a window connected to at least one vertical frame of the frame body. According to such a configuration, the ventilation device and the window can be installed in the building as an integrated fitting, and the appearance quality and the construction efficiency are high.

本発明によれば、製造コストや製造効率を向上することができ、さらに耐久性も確保することができる。 According to the present invention, the manufacturing cost and the manufacturing efficiency can be improved, and the durability can be ensured.

図１は、本発明の一実施形態に係る換気装置を備えた建具を室外側から見た姿図である。FIG. 1 is a view of a fitting provided with a ventilation device according to an embodiment of the present invention as viewed from the outdoor side. 図２は、図１に示す建具を室内側から見た姿図である。FIG. 2 is a view of the fitting shown in FIG. 1 as viewed from the indoor side. 図３は、内側パネル及び外側パネルを閉じた状態での換気装置の横断面図である。FIG. 3 is a cross-sectional view of the ventilation device with the inner panel and the outer panel closed. 図４は、換気装置の内側パネル及び外側パネルを開いた状態での横断面図である。FIG. 4 is a cross-sectional view of the ventilation device with the inner panel and the outer panel open. 図５は、換気装置の縦断面図である。FIG. 5 is a vertical sectional view of the ventilation device. 図６は、自重負荷機構の構成を示す正面図であり、図６（Ａ）は、羽根部材が無風又は微風を受けている状態を示す図であり、図６（Ｂ）は、羽根部材が強風を受けている状態を示す図である。FIG. 6 is a front view showing the configuration of the self-weight load mechanism, FIG. 6 (A) is a view showing a state in which the blade member is receiving no wind or a breeze, and FIG. 6 (B) is a view in which the blade member is received. It is a figure which shows the state which receives a strong wind. 図７は、自重負荷機構の構成を模式的に示す斜視説明図であり、図７（Ａ）は、羽根部材が無風又は微風を受けている状態を示す図であり、図７（Ｂ）は、羽根部材が強風を受けている状態を示す図である。FIG. 7 is a perspective explanatory view schematically showing the configuration of the self-weight load mechanism, FIG. 7 (A) is a diagram showing a state in which the blade member is receiving no wind or a breeze, and FIG. 7 (B) is a diagram. , It is a figure which shows the state which the blade member receives a strong wind. 図８は、変形例に係る自重負荷機構の構成を模式的に示す斜視説明図である。FIG. 8 is a perspective explanatory view schematically showing the configuration of the self-weight load mechanism according to the modified example.

以下、本発明に係る換気装置について、この装置を備えた建具を例示して好適な実施の形態を挙げ、添付の図面を参照しながら詳細に説明する。 Hereinafter, the ventilation device according to the present invention will be described in detail with reference to the accompanying drawings, exemplifying fittings provided with this device and exemplifying suitable embodiments.

図１は、本発明の一実施形態に係る換気装置１０を備えた建具１２を室外側から見た姿図である。図２は、図１に示す建具１２を室内側から見た姿図である。換気装置１０は、窓１４と連結された建具１２として建物外壁の開口部に設置され、室外の空気を取り込んで室内を換気する装置である。 FIG. 1 is a view of a fitting 12 provided with a ventilation device 10 according to an embodiment of the present invention as viewed from the outdoor side. FIG. 2 is a view of the fitting 12 shown in FIG. 1 as viewed from the indoor side. The ventilation device 10 is a device that is installed at the opening of the outer wall of the building as a fitting 12 connected to the window 14 and takes in the outdoor air to ventilate the room.

図１及び図２に示すように、窓１４は、窓枠１６と、窓枠１６の開口部に嵌め殺した窓ガラス１８とを備える嵌め殺し窓である。窓枠１６は、上窓枠１６ａと、下窓枠１６ｂと、左右の縦窓枠１６ｃ，１６ｄとを四周枠組みした構成である。各窓枠１６ａ〜１６ｄは、例えばアルミニウム等の金属又は塩化ビニル樹脂（ＰＶＣ）等の樹脂の押出形材である。 As shown in FIGS. 1 and 2, the window 14 is a fitting window including a window frame 16 and a window glass 18 fitting and killing in the opening of the window frame 16. The window frame 16 has a configuration in which the upper window frame 16a, the lower window frame 16b, and the left and right vertical window frames 16c and 16d are framed in four directions. Each of the window frames 16a to 16d is an extruded profile of a metal such as aluminum or a resin such as vinyl chloride resin (PVC).

本実施形態では、嵌め殺し窓の窓１４と換気装置１０とを連結した構成の建具１２を例示する。建具１２は、嵌め殺し窓以外、例えば引違い窓等のスライディング窓、開き窓等の回転窓、上げ下げ窓等の各種構成の窓と換気装置１０を連結した構成でもよい。建具１２は、換気装置１０と窓１４とが連結されず、例えば建物外壁を間に挟んでそれぞれ独立して設置された構成でもよい。換気装置１０は単独で設置されてもよい。 In this embodiment, a fitting 12 having a configuration in which a window 14 of a fitting window and a ventilation device 10 are connected is illustrated. The fitting 12 may have a configuration in which a ventilation device 10 is connected to windows having various configurations such as a sliding window such as a sliding window, a rotating window such as a hinged window, and a raising / lowering window, in addition to the fitting window. The fitting 12 may be configured such that the ventilation device 10 and the window 14 are not connected to each other and are installed independently with the outer wall of the building sandwiched between them, for example. The ventilation device 10 may be installed independently.

図１及び図２に示すように、換気装置１０は、枠体２０と、枠体２０の開口部２２を開閉する内側パネル２４及び外側パネル２５と、開口部２２を通過する風量を調整する風量調整弁となる羽根部材２６とを備える定風量型換気装置である。 As shown in FIGS. 1 and 2, the ventilation device 10 adjusts the air volume passing through the frame body 20, the inner panel 24 and the outer panel 25 for opening and closing the opening 22 of the frame body 20, and the air volume passing through the opening 22. It is a constant air volume type ventilation device including a blade member 26 serving as a regulating valve.

枠体２０は、上枠２０ａと、下枠２０ｂと、左右の縦枠２０ｃ，２０ｄとを四周枠組みした構成である。各枠２０ａ〜２０ｄは、例えばアルミニウム等の金属又は塩化ビニル樹脂（ＰＶＣ）等の樹脂の押出形材である。換気装置１０は、一方の縦枠２０ｃが窓１４の一方の縦窓枠１６ｃと連結固定されることで建具１２を構成する。 The frame body 20 has a configuration in which an upper frame 20a, a lower frame 20b, and left and right vertical frames 20c and 20d are framed in four directions. Each frame 20a to 20d is an extruded profile of a metal such as aluminum or a resin such as vinyl chloride resin (PVC). The ventilation device 10 constitutes the fitting 12 by connecting and fixing one vertical frame 20c to one vertical window frame 16c of the window 14.

本出願において、見込み方向とは建具１０の室内外方向、つまり室内側から室外側に向かう方向又はその逆方向（図中に矢印Ｚで示す方向）をいい、見込み面とは見込み方向に沿って延在する面をいう。見付け方向とは見込み方向に直交する方向であり、上下方向に長尺な縦枠２０ｃ，２０ｄ等の場合はその長手方向に直交する左右方向（図中に矢印Ｘで示す方向）をいい、左右方向に長尺な上枠２０ａ及び下枠２０ｂ等の場合はその長手方向に直交する上下方向（図中に矢印Ｙで示す方向）をいう。見付け面とは見付け方向に沿った面をいう。枠状部材の内側（内周）とは、例えば枠体２０の開口部２２を設けた枠内部分をいう。枠状部材の外側（外周）とは、例えば枠体２０の建物躯体に固定される枠外部分をいう。 In the present application, the prospective direction means the indoor / outdoor direction of the fitting 10, that is, the direction from the indoor side to the outdoor side or the opposite direction (the direction indicated by the arrow Z in the figure), and the prospective surface is along the prospective direction. It refers to the extending surface. The finding direction is a direction orthogonal to the expected direction, and in the case of vertical frames 20c, 20d, etc., which are long in the vertical direction, the left and right directions (directions indicated by arrows X in the figure) perpendicular to the longitudinal direction are used. In the case of the upper frame 20a, the lower frame 20b, etc., which are long in the direction, it means the vertical direction (direction indicated by the arrow Y in the drawing) orthogonal to the longitudinal direction thereof. The finding surface is a surface along the finding direction. The inside (inner circumference) of the frame-shaped member means, for example, an inner portion of the frame provided with an opening 22 of the frame body 20. The outside (outer circumference) of the frame-shaped member means, for example, an outer portion of the frame 20 fixed to the building frame.

図３は、内側パネル２４及び外側パネル２５を閉じた状態での換気装置１０の横断面図である。図４は、換気装置１０の内側パネル２４及び外側パネル２５を開いた状態での横断面図である。図５は、換気装置１０の縦断面図である。 FIG. 3 is a cross-sectional view of the ventilation device 10 with the inner panel 24 and the outer panel 25 closed. FIG. 4 is a cross-sectional view of the ventilation device 10 with the inner panel 24 and the outer panel 25 open. FIG. 5 is a vertical cross-sectional view of the ventilation device 10.

図３〜図５に示すように、開口部２２は、枠体２０の内側で室内外方向に連通している。開口部２２は、換気装置１０の室内外に空気を流通させることで室内を換気するための換気経路Ｓの一部を構成する。開口部２２は、枠体２０の内側に突出形成された枠状の仕切り壁２８の内側に形成されている。 As shown in FIGS. 3 to 5, the opening 22 communicates with the inside of the frame body 20 in the indoor / outdoor direction. The opening 22 constitutes a part of the ventilation path S for ventilating the room by circulating air inside and outside the room of the ventilation device 10. The opening 22 is formed inside a frame-shaped partition wall 28 that is formed so as to project inside the frame body 20.

仕切り壁２８は、枠体２０を室内外に連通する換気経路Ｓを室内外方向に仕切る壁部材である。換気経路Ｓは、仕切り壁２８によって室内側経路Ｓ１と、室外側経路Ｓ２とに仕切られ、これら各経路Ｓ１，Ｓ２間が開口部２２によって連通している。仕切り壁２８は、上枠２０ａ及び下枠２０ｂの内側見込み面から内側に突出した上片２８ａ及び下片２８ｂと、縦枠２０ｃ，２０ｄの内側見込み面から内側に突出した縦片２８ｃ，２８ｄとで枠状に形成されている。本実施形態の場合、上片２８ａは上枠２０ａの内側見込み面に装着した内壁部材２９ａに設け、下片２８ｂは下枠２０ｂの内側見込み面に装着した内壁部材２９ｂに設けている。内壁部材２９ａ，２９ｂは、それぞれ各枠２０ａ，２０ｂと一体成形されてもよい。 The partition wall 28 is a wall member that partitions the ventilation path S that communicates the frame body 20 indoors and outdoors in the indoor and outdoor directions. The ventilation path S is divided into an indoor side path S1 and an outdoor side path S2 by a partition wall 28, and each of these paths S1 and S2 communicates with each other by an opening 22. The partition wall 28 includes upper pieces 28a and lower pieces 28b protruding inward from the inner prospective surfaces of the upper frame 20a and lower frame 20b, and vertical pieces 28c and 28d protruding inward from the inner prospective surfaces of the vertical frames 20c and 20d. It is formed in a frame shape. In the case of the present embodiment, the upper piece 28a is provided on the inner wall member 29a mounted on the inner prospective surface of the upper frame 20a, and the lower piece 28b is provided on the inner wall member 29b mounted on the inner prospective surface of the lower frame 20b. The inner wall members 29a and 29b may be integrally molded with the respective frames 20a and 20b, respectively.

開口部２２には、網戸３０が設けられている。網戸３０は、各片２８ａ〜２８ｄの内側見込み面に装着固定されている。網戸３０は、レール等を用いて開閉可能に構成されてもよい。 A screen door 30 is provided in the opening 22. The screen door 30 is mounted and fixed to the inner prospective surface of each piece 28a to 28d. The screen door 30 may be configured to be openable and closable by using a rail or the like.

内側パネル２４は、開口部２２の室内側で一方の縦枠２０ｄに回動可能に支持された扉である。内側パネル２４の一側部には、上下方向に沿った軸片２４ａが設けられている。縦枠２０ｄの内側見込み面には、縦片２８ｄの室内側となる位置に上下方向に沿ったヒンジ片３２が設けられている。軸片２４ａ及びヒンジ片３２は、回転自由に係合されることで内側パネル２４の回動用のヒンジとなる。内側パネル２４は、枠体２０の見込み幅内に収納された全閉位置（図３参照）から、枠体２０の室内側見付け面３３よりも室内側に張り出した全開位置（図４参照）まで開閉可能である。 The inner panel 24 is a door rotatably supported by one of the vertical frames 20d on the indoor side of the opening 22. A shaft piece 24a along the vertical direction is provided on one side of the inner panel 24. A hinge piece 32 along the vertical direction is provided on the inner prospective surface of the vertical frame 20d at a position on the indoor side of the vertical piece 28d. The shaft piece 24a and the hinge piece 32 are rotatably engaged with each other to become a hinge for rotating the inner panel 24. The inner panel 24 is from a fully closed position (see FIG. 3) housed within the expected width of the frame body 20 to a fully open position (see FIG. 4) protruding toward the room side of the indoor side finding surface 33 of the frame body 20. It can be opened and closed.

内側パネル２４は、正面視で開口部２２に対応する部分に見込み方向に厚みを持った中空構造部２４ｂを有する。中空構造部２４ｂは、全閉位置で換気経路Ｓの室内側経路Ｓ１の大部分を埋めた状態となる。中空構造部２４ｂの上下両縁部は、それぞれ各片２８ａ，２８ｂに装着された気密材３４と当接する。内側パネル２４の上下左右各縁部の見込み方向室内側には、それぞれ戸当たり片２４ｃが設けられている。各戸当たり片２４ｃは、各枠２０ａ〜２０ｄの内側見込み面に設けた突出片に装着された気密材３４と当接する。これにより内側パネル２４は、全閉位置で上下左右縁部が各気密材３４に当接し、気密性及び水密性が確保される（図３及び図５参照）。内側パネル２４の室内側面には、開閉操作用のハンドル３６が取り付けられている。 The inner panel 24 has a hollow structure portion 24b having a thickness in the prospective direction at a portion corresponding to the opening 22 when viewed from the front. The hollow structure portion 24b is in a state where most of the indoor side path S1 of the ventilation path S is filled in the fully closed position. The upper and lower edges of the hollow structure portion 24b come into contact with the airtight material 34 attached to each of the pieces 28a and 28b, respectively. A door stop piece 24c is provided on each of the upper, lower, left, and right edges of the inner panel 24 on the indoor side in the prospective direction. The piece 24c per door comes into contact with the airtight material 34 attached to the projecting piece provided on the inner prospective surface of each frame 20a to 20d. As a result, the upper, lower, left and right edges of the inner panel 24 come into contact with the airtight materials 34 at the fully closed position, and airtightness and watertightness are ensured (see FIGS. 3 and 5). A handle 36 for opening / closing operation is attached to the indoor side surface of the inner panel 24.

外側パネル２５は、開口部２２の室外側で一方の縦枠２０ｄに回動可能に支持された扉である。外側パネル２５の一側部には、上下方向に沿った軸片２５ａが設けられている。縦枠２０ｄの内側見込み面には、縦片２８ｄの室外側となる位置に上下方向に沿ったヒンジ片３８が設けられている。軸片２５ａ及びヒンジ片３８は、回転自由に係合されることで外側パネル２５の回動用のヒンジとなる。外側パネル２５は、枠体２０の見込み幅内に収納された全閉位置（図３参照）から、枠体２０の室外側見付け面３７よりも室外側に張り出した全開位置（図４参照）まで開閉可能である。 The outer panel 25 is a door rotatably supported by one of the vertical frames 20d on the outdoor side of the opening 22. A shaft piece 25a along the vertical direction is provided on one side of the outer panel 25. A hinge piece 38 along the vertical direction is provided on the inner prospective surface of the vertical frame 20d at a position on the outdoor side of the vertical piece 28d. The shaft piece 25a and the hinge piece 38 are rotatably engaged with each other to become a hinge for rotating the outer panel 25. The outer panel 25 extends from a fully closed position (see FIG. 3) housed within the expected width of the frame 20 to a fully open position (see FIG. 4) protruding outside the outdoor side finding surface 37 of the frame 20. It can be opened and closed.

外側パネル２５は、全閉位置で枠体２０の室外側見付け面３７に略面一となり、内側パネル２４よりも薄い有底容器構造である。外側パネル２５の室内側面である内面３９の左右両側部付近には、それぞれ室内側に向かって突出した側壁２５ｂ，２５ｃが設けられている。外側パネル２５は、ヒンジ片３８側とは反対側の開放端部２５ｄが側壁２５ｂよりも縦枠２０ｃに向かって突出している。これにより全閉位置で外側パネル２５と縦枠２０ｃとの間の隙間から装置内部が容易に視認し難い目隠し構造となっている（図３参照）。 The outer panel 25 has a bottomed container structure that is substantially flush with the outdoor side finding surface 37 of the frame body 20 at the fully closed position and is thinner than the inner panel 24. Side walls 25b and 25c protruding toward the indoor side are provided near the left and right side portions of the inner surface 39, which is the indoor side surface of the outer panel 25, respectively. In the outer panel 25, the open end portion 25d on the side opposite to the hinge piece 38 side protrudes from the side wall 25b toward the vertical frame 20c. As a result, the inside of the device is hard to see easily from the gap between the outer panel 25 and the vertical frame 20c at the fully closed position (see FIG. 3).

上枠２０ａの内側見込み面の室外側端部には、全閉位置の外側パネル２５の上端面と接触する水切り部材４１が設けられている。水切り部材４１は、開いた状態の外側パネル２５を全閉位置まで閉じる際に外側パネル２５の上端面に摺接し、この上端面に溜まった雨水等を室外に掃き出す機能を有する。水切り部材４１は、全閉位置にある外側パネル２５と上枠２０ａとの間の隙間から雨水等が室外側経路Ｓ２に浸入することも防止する。 A draining member 41 that comes into contact with the upper end surface of the outer panel 25 in the fully closed position is provided at the outdoor end of the inner prospective surface of the upper frame 20a. The draining member 41 has a function of sliding contact with the upper end surface of the outer panel 25 when closing the open outer panel 25 to the fully closed position, and sweeping rainwater or the like accumulated on the upper end surface to the outside of the room. The draining member 41 also prevents rainwater or the like from entering the outdoor path S2 through the gap between the outer panel 25 and the upper frame 20a in the fully closed position.

図３〜図５に示すように、内側パネル２４と外側パネル２５は、その開閉動作が上下一対のリンク機構４０によって連動する。各リンク機構４０は、一対のアーム部材４２，４３と、スライダ４４とを有する。各リンク機構４０は、上下対称構造である以外は同一構造のため、以下では主に下側のリンク機構４０について説明し、上側のリンク機構４０については同一の参照符号を付して詳細な説明を省略する。 As shown in FIGS. 3 to 5, the opening and closing operations of the inner panel 24 and the outer panel 25 are interlocked by a pair of upper and lower link mechanisms 40. Each link mechanism 40 has a pair of arm members 42, 43 and a slider 44. Since each link mechanism 40 has the same structure except that it has a vertically symmetrical structure, the lower link mechanism 40 will be mainly described below, and the upper link mechanism 40 will be described in detail with the same reference numerals. Is omitted.

一方のアーム部材４２は、一端部が回転軸４２ａを介して内側パネル２４に回転自由に連結され、他端部が回転軸４２ｂを介してスライダ４４に回転自由に連結されている。他方のアーム部材４３は、一端部が回転軸４３ａを介して外側パネル２５に回転自由に連結され、他端部がアーム部材４２と共通の回転軸４２ｂを介してスライダ４４に回転自由に連結されている。スライダ４４は、下枠２０ｂの内側見込み面に設けたレール４６に対して摺動可能に係合している。レール４６は、下枠２０ｂを構成する内壁部材２９ｂに設けた下片２８ｂより室内側の内側見込み面に突設されている。レール４６は、下枠２０ｂの長手方向に延在している。なお、上側のリンク機構４０のレール４６は、上枠２０ａを構成する内壁部材２９ａに設けた上片２８ａより室内側の内側見込み面に突設されている。 One end of the arm member 42 is rotatably connected to the inner panel 24 via the rotation shaft 42a, and the other end is rotatably connected to the slider 44 via the rotation shaft 42b. One end of the other arm member 43 is rotatably connected to the outer panel 25 via a rotating shaft 43a, and the other end is rotatably connected to a slider 44 via a rotating shaft 42b common to the arm member 42. ing. The slider 44 is slidably engaged with the rail 46 provided on the inner prospective surface of the lower frame 20b. The rail 46 projects from the lower piece 28b provided on the inner wall member 29b constituting the lower frame 20b to the inner prospective surface on the indoor side. The rail 46 extends in the longitudinal direction of the lower frame 20b. The rail 46 of the upper link mechanism 40 projects from the upper piece 28a provided on the inner wall member 29a constituting the upper frame 20a to the inner prospective surface on the indoor side.

従って、リンク機構４０は、内側パネル２４及び外側パネル２５が全閉位置にある状態では、スライダ４４が各パネル２４，２５のヒンジ側となる縦枠２０ｄに最も近接したスライド位置にある（図３参照）。この状態からハンドル３６を把持して内側パネル２４を室内側に開き操作すると、一方のアーム部材４２がスライダ４４側の回転軸４２ｂを回動中心として室内側に開き動作する。そうすると、スライダ４４がアーム部材４２によって引っ張られ、縦枠２０ｄ側から反対側の縦枠２０ｃ側にスライドする。この際、スライドするスライダ４４によって他方のアーム部材４３が押圧されて外側パネル２５を室外側に向かって押圧する。このため、内側パネル２４と連動して外側パネル２５も開き動作する。最終的には、図４に示すようにスライダ４４がレール４６上に設けたストッパ４７に当接し、各パネル２４，２５が全開位置となる。この状態では、スライダ４４はストッパ４７に併設した保持ばね４８に保持されるため、各パネル２４，２５の全開状態が維持される。 Therefore, the link mechanism 40 is in the slide position where the slider 44 is closest to the vertical frame 20d on the hinge side of each of the panels 24 and 25 when the inner panel 24 and the outer panel 25 are in the fully closed position (FIG. 3). reference). When the handle 36 is gripped from this state and the inner panel 24 is opened to the indoor side, one arm member 42 opens to the indoor side with the rotation shaft 42b on the slider 44 side as the rotation center. Then, the slider 44 is pulled by the arm member 42 and slides from the vertical frame 20d side to the opposite vertical frame 20c side. At this time, the other arm member 43 is pressed by the sliding slider 44, and the outer panel 25 is pressed toward the outdoor side. Therefore, the outer panel 25 also opens and operates in conjunction with the inner panel 24. Finally, as shown in FIG. 4, the slider 44 comes into contact with the stopper 47 provided on the rail 46, and the panels 24 and 25 are in the fully open position. In this state, the slider 44 is held by the holding spring 48 provided on the stopper 47, so that the panels 24 and 25 are maintained in the fully open state.

一方、内側パネル２４を開き操作とは反対側に向かって閉じ操作すると、スライダ４４が保持ばね４８から離脱して今度は縦枠２０ｄ側に向かってスライドし、外側パネル２５も閉じ動作することになる。 On the other hand, when the inner panel 24 is opened and closed toward the side opposite to the opening operation, the slider 44 is separated from the holding spring 48 and slides toward the vertical frame 20d side, and the outer panel 25 is also closed. Become.

なお、図５に示すように、スライダ４４は、上片２８ａ及び下片２８ｂよりも室内側となる位置に配設されている。このため、外側パネル２５側の上下のアーム部材４３は、それぞれ上片２８ａ及び下片２８ｂに設けた貫通孔４５に挿通されている。そこで、この貫通孔４５の室外側をモヘア４９で塞ぐことで、貫通孔４５から室内側への虫やごみ等の異物の侵入を防止している。なお、開口部２２から室内側への異物の侵入は網戸３０によって防止される。 As shown in FIG. 5, the slider 44 is arranged at a position closer to the room than the upper piece 28a and the lower piece 28b. Therefore, the upper and lower arm members 43 on the outer panel 25 side are inserted into the through holes 45 provided in the upper piece 28a and the lower piece 28b, respectively. Therefore, by closing the outdoor side of the through hole 45 with a mohair 49, foreign matter such as insects and dust is prevented from entering from the through hole 45 to the indoor side. The screen door 30 prevents foreign matter from entering the room through the opening 22.

図３〜図５に示すように、羽根部材２６は、開口部２２の室外側で一方の縦枠２０ｄに回動可能に支持されている。羽根部材２６の一側部には、縦枠２０ｄに沿って鉛直方向に延在する軸部材５０が設けられている。枠体２０の内側見込み面には、縦片２８ｄの室外側であってヒンジ片３８の室内側となる位置に軸受部材５２が設けられている。軸部材５０は軸受部材５２に対して軸回りに回転自由に支持され、これにより羽根部材２６が縦枠２０ｄに対して回動可能に支持されている。羽根部材２６は、枠体２０の見込み幅内で室外側経路Ｓ２に収納された全閉位置（図３参照）から、枠体２０の室外側見付け面３７よりも室外側に張り出した全開位置（図４参照）まで開閉可能である。羽根部材２６の全開位置は、室外側見付け面３７よりも室外側に張り出さない位置とされてもよい。羽根部材２６は、室外側に移動する開き方向に対して自重による負荷を常時受けているが、詳細は後述する。 As shown in FIGS. 3 to 5, the blade member 26 is rotatably supported by one of the vertical frames 20d on the outdoor side of the opening 22. A shaft member 50 extending in the vertical direction along the vertical frame 20d is provided on one side of the blade member 26. A bearing member 52 is provided on the inner prospective surface of the frame body 20 at a position on the outdoor side of the vertical piece 28d and on the indoor side of the hinge piece 38. The shaft member 50 is rotatably supported by the bearing member 52 around the axis, whereby the blade member 26 is rotatably supported by the vertical frame 20d. The blade member 26 is in a fully open position (see FIG. 3) that projects from the fully closed position (see FIG. 3) housed in the outdoor path S2 within the expected width of the frame 20 to the outdoor side of the outdoor finding surface 37 of the frame 20 (see FIG. 3). It can be opened and closed up to (see FIG. 4). The fully open position of the blade member 26 may be a position that does not project outside the outdoor side finding surface 37. The blade member 26 is constantly subjected to a load due to its own weight in the opening direction moving to the outdoor side, and the details will be described later.

羽根部材２６は、ヒンジ側である軸部材５０から開放端側である先端部２６ａに向かって順に、戸当たり部２６ｂと、傾斜部２６ｃと、本体部２６ｄと、先端部２６ａとを有する板状部材である。羽根部材２６は、例えばアルミニウム等の金属又は塩化ビニル樹脂（ＰＶＣ）等の樹脂の押出形材である。 The blade member 26 has a plate shape having a door stop portion 26b, an inclined portion 26c, a main body portion 26d, and a tip portion 26a in this order from the shaft member 50 on the hinge side toward the tip portion 26a on the open end side. It is a member. The blade member 26 is an extruded profile of a metal such as aluminum or a resin such as vinyl chloride resin (PVC).

図３に示す全閉位置を基準として説明すると、戸当たり部２６ｂは、軸部材５０からＸ方向で縦枠２０ｄから縦枠２０ｃに向かう方向（以下、「Ｘ１方向」という）に沿って延びた板部である。傾斜部２６ｃは、戸当たり部２６ｂの先端より多少基端寄りの位置からＸ１方向に向かって次第に室外側に傾斜した板部である。本体部２６ｄは、外側パネル２５の内面３９に当接又は近接した位置でＸ１方向に向かって延びた板部である。本体部２６ｄの内面には、２本の水切り片５４が突設されている。先端部２６ａは、本体部２６ｄの先端部に設けられたポケット形状部であり、タイト材５６が装着されている。 Explaining with reference to the fully closed position shown in FIG. 3, the door stop portion 26b extends in the X direction from the shaft member 50 along the direction from the vertical frame 20d to the vertical frame 20c (hereinafter, referred to as “X1 direction”). It is a board part. The inclined portion 26c is a plate portion that is gradually inclined to the outdoor side in the X1 direction from a position slightly closer to the base end than the tip of the door stop portion 26b. The main body portion 26d is a plate portion extending in the X1 direction at a position in contact with or close to the inner surface 39 of the outer panel 25. Two draining pieces 54 are projected on the inner surface of the main body 26d. The tip portion 26a is a pocket-shaped portion provided at the tip portion of the main body portion 26d, and a tight material 56 is attached to the tip portion 26a.

羽根部材２６は、その先端部２６ａに設けたタイト材５６と、縦枠２０ｃとの間の隙間に換気口６２を形成する。この換気口６２は、室外から開口部２２を介して室内への風の流入口となり、羽根部材２６の移動に応じて開口面積が変化する。換気口６２は、羽根部材２６が全閉位置で開口面積が最小となり、羽根部材２６が全開位置で開口面積が最大となる。本実施形態の場合、図３から明らかなように、羽根部材２６の全閉位置とは、換気口６２（及び開口部２２）を完全に閉塞するものではなく、その開口面積を最小にする位置である。 The blade member 26 forms a ventilation port 62 in a gap between the tight material 56 provided at the tip portion 26a and the vertical frame 20c. The ventilation port 62 serves as an inlet for air from the outside to the room through the opening 22, and the opening area changes according to the movement of the blade member 26. The ventilation port 62 has a minimum opening area when the blade member 26 is fully closed, and a maximum opening area when the blade member 26 is fully open. In the case of the present embodiment, as is clear from FIG. 3, the fully closed position of the blade member 26 does not completely close the ventilation port 62 (and the opening 22), but is a position that minimizes the opening area. Is.

各水切り片５４は、本体部２６ｄの内面にＸ方向に並んで設けられている。各水切り片５４は、Ｘ１方向に向かって次第に室内側に傾斜すると共に、先端がＸ１方向に屈曲した板部である。各水切り片５４は、外側パネル２５の開放端部２５ｄと縦枠２０ｃとの間の隙間から室外側経路Ｓ２に流入し、羽根部材２６の内面に沿って開口部２２へと流れる雨水等の水分を除去するための部材である。 The draining pieces 54 are provided side by side in the X direction on the inner surface of the main body portion 26d. Each drainer piece 54 is a plate portion that gradually inclines toward the indoor side toward the X1 direction and has a tip bent in the X1 direction. Each drainer piece 54 flows into the outdoor path S2 through a gap between the open end portion 25d of the outer panel 25 and the vertical frame 20c, and flows into the opening 22 along the inner surface of the blade member 26. It is a member for removing.

縦枠２０ｃ（縦片２８ｃ）に水切り羽根５８（図３中の２点鎖線参照）を取り付けた構成としてもよい。すなわち、羽根部材２６の全閉位置で水切り片５４が水切り羽根５８と互い違いに配置されると、クランク状の水切り経路を形成でき、防水性能が一層向上する。水切り羽根５８は、例えば羽根部材２６の本体部２６ｄを略反転させた構造であり、水切り片５４と互い違いに配置される一対の水切り片５８ａを有する。 A draining blade 58 (see the two-dot chain line in FIG. 3) may be attached to the vertical frame 20c (vertical piece 28c). That is, when the draining pieces 54 are alternately arranged with the draining blades 58 at the fully closed position of the blade member 26, a crank-shaped draining path can be formed, and the waterproof performance is further improved. The draining blade 58 has, for example, a structure in which the main body portion 26d of the blade member 26 is substantially inverted, and has a pair of draining pieces 58a arranged alternately with the draining piece 54.

タイト材５６は、ゴム系材料や樹脂系材料等によって形成されることで、可撓性を有すると共にある程度の剛性を有する部材である。タイト材５６は、先端部２６ａからＸ１方向に向かって次第に室内側に傾斜するように配置されている。すなわちタイト材５６は、羽根部材２６が外側パネル２５の内面３９に当接又は近接した状態で（図３及び図４参照）、外側パネル２５の内面３９から室内側に向かって離間する方向に延在している。このため、羽根部材２６が内面３９に当接又は近接した状態で、タイト材５６と内面３９との間には隙間Ｇが形成される。その際、タイト材５６の先端は、外側パネル２５の見込み幅（側壁２５ｂ）よりも室内側に突出した状態となる（図３参照）。タイト材５６の隙間Ｇ側の面（外面）は、換気口６２から流入した風を受ける風受け面５６ａとして機能する。 The tight material 56 is a member that is formed of a rubber-based material, a resin-based material, or the like, and thus has flexibility and a certain degree of rigidity. The tight material 56 is arranged so as to gradually incline toward the indoor side from the tip portion 26a toward the X1 direction. That is, the tight material 56 extends in a direction in which the blade member 26 is in contact with or close to the inner surface 39 of the outer panel 25 (see FIGS. 3 and 4) and is separated from the inner surface 39 of the outer panel 25 toward the indoor side. Exists. Therefore, a gap G is formed between the tight material 56 and the inner surface 39 in a state where the blade member 26 is in contact with or close to the inner surface 39. At that time, the tip of the tight material 56 is in a state of protruding toward the indoor side from the expected width (side wall 25b) of the outer panel 25 (see FIG. 3). The surface (outer surface) of the tight material 56 on the gap G side functions as a wind receiving surface 56a that receives the wind flowing in from the ventilation port 62.

次に、羽根部材２６を自重によって開き動作させる自重負荷機構６０について説明する。図６は、自重負荷機構６０の構成を示す正面図であり、図６（Ａ）は、羽根部材２６が無風又は微風を受けている状態を示す図であり、図６（Ｂ）は、羽根部材２６が強風を受けている状態を示す図である。図７は、自重負荷機構６０の構成を模式的に示す斜視説明図であり、図７（Ａ）は、羽根部材２６が無風又は微風を受けている状態を示す図であり、図７（Ｂ）は、羽根部材２６が強風を受けている状態を示す図である。 Next, the self-weight load mechanism 60 that opens and operates the blade member 26 by its own weight will be described. FIG. 6 is a front view showing the configuration of the self-weight load mechanism 60, FIG. 6 (A) is a view showing a state in which the blade member 26 is receiving no wind or a breeze, and FIG. 6 (B) is a blade. It is a figure which shows the state which the member 26 receives a strong wind. FIG. 7 is a perspective explanatory view schematically showing the configuration of the self-weight load mechanism 60, and FIG. 7 (A) is a diagram showing a state in which the blade member 26 is receiving no wind or a breeze, and is FIG. 7 (B). ) Is a diagram showing a state in which the blade member 26 is receiving a strong wind.

図６に示すように、自重負荷機構６０は、軸部材５０と軸受部材５２とを有する。 As shown in FIG. 6, the self-weight load mechanism 60 has a shaft member 50 and a bearing member 52.

軸部材５０は、羽根部材２６の一側部（縦枠２０ｄ側の側部）に設けられて鉛直方向に延びた筒体５０ａと、筒体５０ａの上下開口からそれぞれ上下に突出する一対の軸部５０ｂ，５０ｂと、下側の軸部５０ｂを囲む下向き端面５０ｃとを有する。各軸部５０ｂは、基端部が筒体５０ａに嵌挿されて先端部が上下に突出した構造であるが、筒体５０ａと一体構造でもよい。下向き端面５０ｃは、軸部５０ｂの軸方向に対して上下方向に傾斜する傾斜面（テーパ形状面）である。つまり下向き端面５０ｃは、筒体５０ａの下端部を軸方向と交差する斜め方向に切断した形状である。 The shaft member 50 includes a tubular body 50a provided on one side of the blade member 26 (side portion on the vertical frame 20d side) and extending in the vertical direction, and a pair of shafts protruding vertically from the vertical openings of the tubular body 50a. It has portions 50b, 50b and a downward end face 50c surrounding the lower shaft portion 50b. Each shaft portion 50b has a structure in which the base end portion is fitted into the tubular body 50a and the tip end portion projects vertically, but the shaft portion 50b may have an integral structure with the tubular body 50a. The downward end surface 50c is an inclined surface (tapered surface) that is inclined in the vertical direction with respect to the axial direction of the shaft portion 50b. That is, the downward end surface 50c has a shape in which the lower end portion of the tubular body 50a is cut in an oblique direction intersecting the axial direction.

軸受部材５２は、上下の軸部５０ｂ，５０ｂに対応するように上下一対設けられている。上側の軸受部材５２は、上側の軸部５０ｂを回転自由に且つ昇降自由に支持する筒体である。下側の軸受部材５２は、下側の軸部５０ｂを回転自由に且つ昇降自由に支持する筒体である。下側の軸受部材５２には、挿入された軸部５０ｂを囲む上向き端面５２ａが設けられている。上向き端面５２ａは、軸部５０ｂの軸方向に対して上下方向に傾斜する傾斜面（テーパ形状面）である。つまり上向き端面５２ａは、軸受部材５２を軸方向と交差する斜め方向に切断した形状である。 A pair of upper and lower bearing members 52 are provided so as to correspond to the upper and lower shaft portions 50b and 50b. The upper bearing member 52 is a tubular body that supports the upper shaft portion 50b freely in rotation and in an ascending / descending manner. The lower bearing member 52 is a tubular body that supports the lower shaft portion 50b freely in rotation and in an ascending / descending manner. The lower bearing member 52 is provided with an upward end surface 52a that surrounds the inserted shaft portion 50b. The upward end surface 52a is an inclined surface (tapered surface) that is inclined in the vertical direction with respect to the axial direction of the shaft portion 50b. That is, the upward end surface 52a has a shape in which the bearing member 52 is cut in an oblique direction intersecting the axial direction.

図６（Ａ）及び図７（Ａ）に示すように、羽根部材２６に風や外側パネル２５からの外力が付与されていない状態では、軸部材５０の下向き端面５０ｃと軸受部材５２の上向き端面５２ａとが互いに密着して１本の筒形状を構成する。すなわち、羽根部材２６に自重以外の負荷が付与されていない状態では、羽根部材２６の重量によって下向き端面５０ｃが上向き端面５２ａを滑り落ち、羽根部材２６が開き方向に回動する。このため、羽根部材２６は、図４に示す全開位置にある。 As shown in FIGS. 6A and 7A, when the blade member 26 is not subjected to wind or an external force from the outer panel 25, the downward end surface 50c of the shaft member 50 and the upward end surface of the bearing member 52 are not applied. 52a and 52a are in close contact with each other to form one tubular shape. That is, in a state where no load other than its own weight is applied to the blade member 26, the downward end surface 50c slides down the upward end surface 52a due to the weight of the blade member 26, and the blade member 26 rotates in the opening direction. Therefore, the blade member 26 is in the fully open position shown in FIG.

図６（Ａ）及び図７（Ａ）に示す状態から風や外側パネル２５からの外力を受けて羽根部材２６が閉じ方向に回動すると、図６（Ｂ）及び図７（Ｂ）に示すように、下向き端面５０ｃが上向き端面５２ａを滑り上がり、羽根部材２６が閉じ方向に回動する。このため、羽根部材２６が図３に示す全閉位置になった状態では、図６中の高さＨ分だけ全閉位置より上昇した位置に配置される。 When the blade member 26 rotates in the closing direction by receiving wind or an external force from the outer panel 25 from the state shown in FIGS. 6 (A) and 7 (A), it is shown in FIGS. 6 (B) and 7 (B). As described above, the downward end surface 50c slides up the upward end surface 52a, and the blade member 26 rotates in the closing direction. Therefore, in the state where the blade member 26 is in the fully closed position shown in FIG. 3, it is arranged at a position higher than the fully closed position by the height H in FIG.

次に、換気装置１０の動作を説明する。 Next, the operation of the ventilation device 10 will be described.

図３に示すように内側パネル２４及び外側パネル２５を全閉位置とした状態では、羽根部材２６は外側パネル２５によって閉じ方向に押圧された状態にある。このため、羽根部材２６は、自重による開き方向への負荷に抗して軸部材５０の下向き端面５０ｃが軸受部材５２の上向き端面５２ａを滑り上がった位置にある（図６（Ａ）及び図７（Ａ）参照）。 As shown in FIG. 3, when the inner panel 24 and the outer panel 25 are in the fully closed position, the blade member 26 is in a state of being pressed by the outer panel 25 in the closing direction. Therefore, the blade member 26 is at a position where the downward end surface 50c of the shaft member 50 slides up the upward end surface 52a of the bearing member 52 against the load in the opening direction due to its own weight (FIGS. 6A and 7). See (A)).

この状態では、羽根部材２６は戸当たり部２６ｂが縦片２８ｄに当接又は近接した全閉位置にある（図３参照）。なお、羽根部材２６が全閉位置にある状態でも、羽根部材２６と縦片２８ｃとの間には風が流通可能な最小の開口面積を持った換気口６２が確保される。但し、この場合は内側パネル２４が全閉位置にあって気密材３４によって換気経路Ｓ（開口部２２）の室内側が完全に閉塞された状態にある。このため、風や雨水等が室内に入り込むことはない。 In this state, the blade member 26 is in a fully closed position where the door stop portion 26b is in contact with or close to the vertical piece 28d (see FIG. 3). Even when the blade member 26 is in the fully closed position, a ventilation port 62 having a minimum opening area through which wind can flow is secured between the blade member 26 and the vertical piece 28c. However, in this case, the inner panel 24 is in the fully closed position, and the indoor side of the ventilation path S (opening 22) is completely blocked by the airtight material 34. Therefore, wind, rainwater, etc. do not enter the room.

次に、室内を換気する際は、ハンドル３６を把持して内側パネル２４を室内側に開き操作する。そうすると、リンク機構４０を介して外側パネル２５も室外側に開き動作し、外側パネル２５から羽根部材２６への押圧力が開放される。このため、羽根部材２６は、自重負荷機構６０によって開き方向に付与される自重により、開き動作する外側パネル２５に追従するように開き動作する。図４に示すように内側パネル２４及び外側パネル２５が全開位置となると、羽根部材２６も外側パネル２５の内面３９に当接又は近接してそれ以上の開き方向への回動が規制された全開位置となる。 Next, when ventilating the room, the handle 36 is gripped and the inner panel 24 is opened toward the room for operation. Then, the outer panel 25 also opens to the outdoor side via the link mechanism 40 and operates, and the pressing force from the outer panel 25 to the blade member 26 is released. Therefore, the blade member 26 opens so as to follow the outer panel 25 that opens due to the weight applied in the opening direction by the self-weight load mechanism 60. As shown in FIG. 4, when the inner panel 24 and the outer panel 25 are in the fully open position, the blade member 26 is also fully opened in contact with or close to the inner surface 39 of the outer panel 25 and its rotation in the opening direction is restricted. It becomes the position.

この状態では、外側パネル２５及び羽根部材２６が室外側に大きく張り出している（図４参照）。このため、換気口６２の開口面積が最大となり、無風や弱風であっても開口部２２から室内への風量を確保でき、十分な換気性能を確保できる。 In this state, the outer panel 25 and the blade member 26 greatly project to the outdoor side (see FIG. 4). Therefore, the opening area of the ventilation port 62 is maximized, and the air volume from the opening 22 to the room can be secured even if there is no wind or weak wind, and sufficient ventilation performance can be ensured.

図４に示す状態で換気装置１０が強風を受けた場合には、換気口６２から流入した風が隙間Ｇからタイト材５６の風受け面５６ａに当たる。この風受け面５６ａ全体で受ける風圧が、自重負荷機構６０による羽根部材２６の開き方向への自重を超えると、羽根部材２６が閉じ方向に移動し始める（図４中に２点鎖線で示す矢印参照）。そして、風力が大きくなると羽根部材２６が次第に閉じ方向に移動して換気口６２の開口面積が小さくなり、室内に流入する風量を抑制する。その結果、開口部２２を通過する室内への風量は、室外での風力にかかわらずに略一定に維持されるため、定風量での換気が可能となる。 When the ventilation device 10 receives a strong wind in the state shown in FIG. 4, the wind flowing in from the ventilation port 62 hits the wind receiving surface 56a of the tight material 56 through the gap G. When the wind pressure received by the entire wind receiving surface 56a exceeds the weight of the blade member 26 in the opening direction by the self-weight load mechanism 60, the blade member 26 starts to move in the closing direction (arrow shown by a two-dot chain line in FIG. 4). reference). Then, when the wind force increases, the blade member 26 gradually moves in the closing direction, the opening area of the ventilation port 62 becomes smaller, and the amount of air flowing into the room is suppressed. As a result, the air volume into the room passing through the opening 22 is maintained substantially constant regardless of the wind force outside the room, so that ventilation at a constant air volume becomes possible.

但し、羽根部材２６が図４中に２点鎖線で示す全閉位置となった後、さらに風力が大きくなった場合であっても換気口６２の開口面積は変化しない。しかしながら、この場合の換気口６２の開口面積は非常に小さいため、室内への風量は次第に上昇するが過度に大きくなることは回避できる。 However, the opening area of the ventilation port 62 does not change even when the wind force becomes larger after the blade member 26 is in the fully closed position shown by the alternate long and short dash line in FIG. However, since the opening area of the ventilation port 62 in this case is very small, the air volume into the room gradually increases, but it can be avoided that the air volume becomes excessively large.

図８は、変形例に係る自重負荷機構７０の構成を模式的に示す斜視説明図である。 FIG. 8 is a perspective explanatory view schematically showing the configuration of the self-weight load mechanism 70 according to the modified example.

図８に示す自重負荷機構７０は、上記した自重負荷機構６０の軸部材５０及び軸受部材５２とは構造の異なる軸部材７２及び軸受部材７４を有する。軸部材７２及び軸受部材７４は、互いの軸方向に直交する端面７２ａ，７４ａ同士で摺接している。但し、軸部材７２及び軸受部材７４は、その軸方向が鉛直方向Ｖに対して室外側に傾いた姿勢とされている。 The self-weight load mechanism 70 shown in FIG. 8 has a shaft member 72 and a bearing member 74 having a structure different from that of the shaft member 50 and the bearing member 52 of the self-weight load mechanism 60 described above. The shaft member 72 and the bearing member 74 are in sliding contact with each other at the end faces 72a and 74a orthogonal to each other in the axial direction. However, the shaft member 72 and the bearing member 74 are in a posture in which the axial direction thereof is inclined to the outdoor side with respect to the vertical direction V.

従って、自重負荷機構７０では、羽根部材２６に風や外側パネル２５による外力が付与されていない状態では、軸部材７２及び軸受部材７４の軸方向の室外側への傾きにより、羽根部材２６が自重によって開き方向に回動する。一方、羽根部材２６が風や外側パネル２５による外力を受けた場合は、羽根部材２６が受ける外力が開き方向への自重を超えた場合に閉じ方向に回動する。 Therefore, in the self-weight load mechanism 70, in a state where no wind or external force is applied to the blade member 26 by the outer panel 25, the blade member 26 has its own weight due to the axial inclination of the shaft member 72 and the bearing member 74 to the outdoor side. Rotates in the opening direction. On the other hand, when the blade member 26 receives an external force from the wind or the outer panel 25, the blade member 26 rotates in the closing direction when the external force received by the blade member 26 exceeds its own weight in the opening direction.

以上のように、本実施形態に係る換気装置１０は、室内外方向に連通する開口部２２を有した枠体２０と、開口部２２の室外側で開口部２２を開閉する方向に移動することで開口部２２を通過する風量を調整する羽根部材２６と、羽根部材２６の室内側で枠体２０に支持されて開口部２２を開閉可能な内側パネル２４とを備える。そして、羽根部材２６は、枠体２０に対して回動自由に支持されると共に、開口部２２を開くように室外側に移動する開き方向に対して自重による負荷を受けている。 As described above, the ventilation device 10 according to the present embodiment moves in the direction of opening and closing the opening 22 on the outdoor side of the opening 22 and the frame body 20 having the opening 22 communicating in the indoor / outdoor direction. A blade member 26 that adjusts the amount of air passing through the opening 22 and an inner panel 24 that is supported by the frame body 20 on the indoor side of the blade member 26 and can open and close the opening 22 are provided. The blade member 26 is rotatably supported by the frame body 20 and is subjected to a load due to its own weight in the opening direction of moving outward so as to open the opening 22.

従って、羽根部材２６はその自重で常時開き方向に負荷を受けている。このため、仮に換気装置１０の高さ寸法や幅寸法等のサイズを変更した場合であっても、羽根部材２６のサイズも同様に変更されることで、自重が増減し同時に風圧を受ける表面積も増減する。例えば羽根部材２６の高さ寸法が増加した場合には、その自重が増加し、その表面積も増加する一方、高さ寸法が減少した場合には、その自重が減少し、その表面積も減少する。このため、自重（重力）による開き方向の負荷の増減と、この自重に打ち勝つ風力の増減とが比例する。その結果、羽根部材２６のサイズにかかわらず、換気口６２の開口面積が室外での風力に応じた大きさに調整され、換気風量が一定に維持される。このように羽根部材２６のサイズが変更された場合であっても、羽根部材２６の自重による開き方向の負荷と、羽根部材２６の風力を受ける受圧面積とが比例関係となる。このため、弾性体を用いた従来構造に比べて、風力に対する羽根部材２６の開閉動作が円滑になり、装置サイズによる性能差を生じにくい。また、弾性体を用いて羽根部材２６を開き方向に付勢する構造に比べて、製造コストや製造効率が向上し、弾性体の劣化も生じないため、耐久性も確保できる。 Therefore, the blade member 26 is constantly loaded in the opening direction due to its own weight. Therefore, even if the size of the ventilation device 10 such as the height dimension and the width dimension is changed, the size of the blade member 26 is also changed in the same manner, so that the own weight increases and decreases, and at the same time, the surface area that receives wind pressure also increases. Increase or decrease. For example, when the height dimension of the blade member 26 increases, its own weight increases and its surface area also increases, while when the height dimension decreases, its own weight decreases and its surface area also decreases. Therefore, the increase / decrease in the load in the opening direction due to its own weight (gravity) is proportional to the increase / decrease in the wind force that overcomes this own weight. As a result, regardless of the size of the blade member 26, the opening area of the ventilation port 62 is adjusted to a size corresponding to the wind force outside the room, and the ventilation air volume is maintained constant. Even when the size of the blade member 26 is changed in this way, the load in the opening direction due to the weight of the blade member 26 and the pressure receiving area of the blade member 26 that receives the wind force are in a proportional relationship. Therefore, as compared with the conventional structure using an elastic body, the opening and closing operation of the blade member 26 with respect to the wind power becomes smoother, and the performance difference due to the device size is less likely to occur. Further, as compared with the structure in which the blade member 26 is urged in the opening direction using an elastic body, the manufacturing cost and manufacturing efficiency are improved, and the elastic body is not deteriorated, so that durability can be ensured.

当該換気装置１０では、羽根部材２６は、自重による負荷のみが付与された状態では、少なくとも一部が枠体２０の室外側見付け面３７よりも室外側に張り出した回動位置となる。このため、羽根部材２６と枠体２０との間に大きな開口面積の換気口６２を確保でき、無風や弱風時の換気量を十分に確保できる。また、羽根部材２６が室外側見付け面３７よりも室外側に張り出すことで、当該換気装置１０を設置した建物外壁に沿って流れた風（ビル風）を効率的に取り込むことができる。 In the ventilation device 10, the blade member 26 is in a rotational position in which at least a part of the blade member 26 projects to the outdoor side of the outdoor side finding surface 37 of the frame body 20 in a state where only a load due to its own weight is applied. Therefore, a ventilation port 62 having a large opening area can be secured between the blade member 26 and the frame body 20, and a sufficient ventilation volume when there is no wind or a weak wind can be secured. Further, by projecting the blade member 26 to the outside of the outdoor side finding surface 37, the wind (building wind) flowing along the outer wall of the building in which the ventilation device 10 is installed can be efficiently taken in.

この際、羽根部材２６の室外側で枠体２０に支持されて開口部２２を開閉可能な外側パネル２５を備え、羽根部材２６及び外側パネル２５は、開口部２２の一側部にそれぞれ支持されると共に、羽根部材２６は、外側パネル２５に当接又は近接することで開き方向への回動が規制される。これにより、換気装置１０の非使用時には、常時自重による開き方向への負荷を受けている羽根部材２６を外側パネル２５によって容易に全閉位置まで収納できる。しかも羽根部材２６が室外側見付け面３７よりも室外側に張り出した場合は、外側パネル２５も同一方向を向いて室外側見付け面３７よりも室外側に張り出した状態となる。このため、当該換気装置１０を設置した建物外壁に沿って流れた風（ビル風）をより効率的に取り込むことができる。 At this time, an outer panel 25 that is supported by the frame body 20 on the outdoor side of the blade member 26 and can open and close the opening 22 is provided, and the blade member 26 and the outer panel 25 are supported by one side of the opening 22, respectively. At the same time, the blade member 26 is restricted from rotating in the opening direction by abutting or approaching the outer panel 25. As a result, when the ventilation device 10 is not in use, the blade member 26, which is constantly loaded in the opening direction due to its own weight, can be easily stored to the fully closed position by the outer panel 25. Moreover, when the blade member 26 projects outward from the outdoor finding surface 37, the outer panel 25 also faces the same direction and projects outward from the outdoor finding surface 37. Therefore, the wind (building wind) flowing along the outer wall of the building where the ventilation device 10 is installed can be taken in more efficiently.

当該換気装置１０では、羽根部材２６の一側部には、枠体２０の縦枠２０ｄに沿って延在する軸部材５０が設けられ、枠体２０には、軸部材５０を軸回りに回転自由に支持すると共に、軸部材５０の下向き端面５０ｃと対面配置されて下向き端面５０ｃと当接することで羽根部材２６の重量を受け止める上向き端面５２ａを有した軸受部材５２が設けられている。そして、軸部材５０の下向き端面５０ｃ及び軸受部材５２の上向き端面５２ａは、軸部材５０の軸方向に対して上下方向に傾斜する傾斜面である。このため、羽根部材２６をその自重を利用して容易に開き方向に押圧することができると共に、強風時等には羽根部材２６を容易に閉じ方向へと回動させることができる。 In the ventilation device 10, a shaft member 50 extending along the vertical frame 20d of the frame body 20 is provided on one side of the blade member 26, and the frame body 20 rotates the shaft member 50 about an axis. A bearing member 52 is provided which is freely supported and has an upward end surface 52a which is arranged to face the downward end surface 50c of the shaft member 50 and receives the weight of the blade member 26 by abutting against the downward end surface 50c. The downward end surface 50c of the shaft member 50 and the upward end surface 52a of the bearing member 52 are inclined surfaces that are inclined in the vertical direction with respect to the axial direction of the shaft member 50. Therefore, the blade member 26 can be easily pressed in the opening direction by utilizing its own weight, and the blade member 26 can be easily rotated in the closing direction in a strong wind or the like.

当該換気装置１０では、羽根部材２６及び外側パネル２５は、開口部２２の一側部にそれぞれ支持され、それぞれの室外に対する開口方向が同一である。このため、ビル風等を効率的に取り込むことができ、換気効率が向上する。 In the ventilation device 10, the blade member 26 and the outer panel 25 are supported by one side of the opening 22, and the opening directions of the blade members 26 and the outer panel 25 are the same with respect to the outside. Therefore, the building wind and the like can be taken in efficiently, and the ventilation efficiency is improved.

当該換気装置１０では、羽根部材２６の先端部２６ａにタイト材５６を設けている。これにより、羽根部材２６の全開位置からの初期可動時にはタイト材５６の風受け面５６ａで円滑に風圧を受けることができる。このため、羽根部材２６が全長に亘って外側パネル２５に密着し、初期可動に必要な風力が過大となることを回避でき、羽根部材２６の初期可動が円滑となる。タイト材５６に代えて、形材である羽根部材２６の先端部２６ａにタイト材５６（風受け面５６ａ）と同様な形状を設けてもよい。 In the ventilation device 10, a tight material 56 is provided at the tip portion 26a of the blade member 26. As a result, when the blade member 26 is initially moved from the fully open position, the wind pressure can be smoothly received by the wind receiving surface 56a of the tight material 56. Therefore, the blade member 26 is in close contact with the outer panel 25 over the entire length, and it is possible to prevent the wind force required for the initial movement from becoming excessive, and the initial movement of the blade member 26 becomes smooth. Instead of the tight material 56, the tip portion 26a of the blade member 26, which is a profile material, may be provided with the same shape as the tight material 56 (wind receiving surface 56a).

またタイト材５６は可撓性を有する。このため、風受け面５６ａに当たる風圧によってタイト材５６が室内側に首を振るように変形することがある。そうすると、タイト材５６が室外からの風をより垂直に近い向きで受けることができるため、羽根部材２６の初期可動がより円滑となる。さらに、羽根部材２６が風圧等で意図せずに閉じ動作した際、タイト材５６が可撓性を持った柔軟な構成であると、これと枠体２０との間に異物等が挟み込まれて羽根部材２６や枠体２０が破損し、或いは騒音が発生することを抑制できる。 Further, the tight material 56 has flexibility. Therefore, the tight material 56 may be deformed so as to swing its head toward the room due to the wind pressure that hits the wind receiving surface 56a. Then, since the tight material 56 can receive the wind from the outside in a direction closer to vertical, the initial movement of the blade member 26 becomes smoother. Further, when the blade member 26 unintentionally closes due to wind pressure or the like, if the tight material 56 has a flexible structure, foreign matter or the like is sandwiched between the tight material 56 and the frame body 20. It is possible to prevent the blade member 26 and the frame 20 from being damaged or generating noise.

なお、本発明は、上記した実施形態に限定されるものではなく、本発明の主旨を逸脱しない範囲で自由に変更できることは勿論である。 It should be noted that the present invention is not limited to the above-described embodiment, and of course, it can be freely changed without departing from the gist of the present invention.

１０ 換気装置、１２ 建具、１４ 窓、１６ 窓枠、１８ 窓ガラス、２０ 枠体、２０ａ 上枠、２０ｂ 下枠、２０ｃ，２０ｄ 縦枠、２２ 開口部、２４ 内側パネル、２５ 外側パネル、２６ 羽根部材、２８ 仕切り壁、３０ 網戸、３３ 室内側見付け面、３７ 室外側見付け面、３９ 内面、４０ リンク機構、５０，７２ 軸部材、５０ａ 筒体、５０ｂ 軸部、５０ｃ 下向き端面、５２，７４ 軸受部材、５２ａ 上向き端面、５４，５８ａ 水切り片、５６ タイト材、５６ａ 風受け面、６０，７０ 自重負荷機構、６２ 換気口、Ｓ 換気経路 10 Ventilator, 12 Joinery, 14 windows, 16 window frames, 18 windowpanes, 20 frames, 20a upper frame, 20b lower frame, 20c, 20d vertical frame, 22 openings, 24 inner panels, 25 outer panels, 26 blades Member, 28 partition wall, 30 screen door, 33 indoor side finding surface, 37 indoor side finding surface, 39 inner surface, 40 link mechanism, 50, 72 shaft member, 50a cylinder, 50b shaft part, 50c downward end face, 52,74 bearing Member, 52a upward end face, 54,58a drainage piece, 56 tight material, 56a wind receiving surface, 60,70 self-weight load mechanism, 62 ventilation port, S ventilation path

Claims (5)

室内外方向に連通する開口部を有した枠体と、前記開口部の室外側で該開口部を開閉する方向に移動することで該開口部を通過する風量を調整する羽根部材と、前記開口部の室内側で前記枠体に支持されて該開口部を開閉可能な内側パネルとを備えた換気装置であって、
前記羽根部材は、前記枠体に対して回動自由に支持されると共に、前記開口部を開くように室外側に移動する開き方向に対して自重による負荷を受けているものであり、
前記羽根部材の一側部には、前記枠体の縦枠に沿って延在する軸部材が設けられ、
前記枠体には、前記軸部材を軸回りに回転自由に支持すると共に、前記軸部材の下向き端面と対面配置されて該下向き端面と当接することで前記羽根部材の重量を受け止める上向き端面を有した軸受部材が設けられ、
前記軸部材の下向き端面及び前記軸受部材の上向き端面は、前記軸部材の軸方向に対して上下方向に傾斜する傾斜面であることを特徴とする換気装置。 A frame having an opening that communicates in the indoor and outdoor directions, a blade member that adjusts the amount of air passing through the opening by moving in the direction of opening and closing the opening on the outdoor side of the opening, and the opening. A ventilation device provided with an inner panel that is supported by the frame on the indoor side of the unit and can open and close the opening.
The blade member is rotatably supported by the frame body and is subjected to a load due to its own weight in the opening direction of moving outward to open the opening .
A shaft member extending along the vertical frame of the frame body is provided on one side of the blade member.
The frame body has an upward end face that freely rotates around the shaft member and is arranged to face the downward end face of the shaft member and abuts on the downward end face to receive the weight of the blade member. Bearing members are provided
A ventilation device characterized in that the downward end surface of the shaft member and the upward end surface of the bearing member are inclined surfaces that are inclined in the vertical direction with respect to the axial direction of the shaft member. 請求項１に記載の換気装置において、
前記羽根部材は、前記自重による負荷のみが付与された状態では、少なくとも一部が前記枠体の室外側見付け面よりも室外側に張り出した回動位置となることを特徴とする換気装置。 In the ventilation apparatus according to claim 1,
The vane member is a ventilation device characterized in that, when only a load due to its own weight is applied, at least a part of the blade member is in a rotational position protruding to the outdoor side of the outdoor side finding surface of the frame body. 請求項１又は２に記載の換気装置において、
前記羽根部材の室外側で前記枠体に支持されて前記開口部を開閉可能な外側パネルを備え、
前記羽根部材及び前記外側パネルは、前記開口部の一側部にそれぞれ支持されると共に、前記羽根部材は、前記外側パネルに当接又は近接することで前記開き方向への回動が規制されることを特徴とする換気装置。 In the ventilation apparatus according to claim 1 or 2.
An outer panel that is supported by the frame on the outdoor side of the blade member and can open and close the opening is provided.
The blade member and the outer panel are supported on one side of the opening, respectively, and the blade member is restricted from rotating in the opening direction by abutting or approaching the outer panel. Ventilation system characterized by that. 請求項３に記載の換気装置において、
前記羽根部材の先端部には、可撓性を有するタイト材が設けられ、
前記タイト材は、前記羽根部材が前記外側パネルに当接又は近接した状態で該外側パネルの内面から室内側に向かって離間する方向に延在していることを特徴とする換気装置。 In the ventilation apparatus according to claim 3,
A flexible tight material is provided at the tip of the blade member.
The tight material is a ventilation device characterized in that the blade member extends in a direction of separating from the inner surface of the outer panel toward the indoor side in a state of being in contact with or close to the outer panel. 請求項１〜４のいずれか１項に記載の換気装置と、前記枠体の少なくとも一方の縦枠と連結された窓とを備えることを特徴とする建具。 A fitting comprising the ventilation device according to any one of claims 1 to 4 and a window connected to at least one vertical frame of the frame body.
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JPH0329516Y2 (en) * 1986-05-29 1991-06-24
JP2511764B2 (en) * 1992-02-18 1996-07-03 トステム株式会社 Open-close type ventilation system
JPH05295959A (en) * 1992-04-16 1993-11-09 Sekisui Chem Co Ltd Venilator
JPH09303036A (en) * 1996-05-10 1997-11-25 Furukawa Electric Co Ltd:The Door opening/closing device
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JP4314635B2 (en) * 2004-03-24 2009-08-19 三協立山アルミ株式会社 Ventilation equipment
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JP6026170B2 (en) * 2012-08-06 2016-11-16 積水ハウス株式会社 Door with ventilation function
JP5966760B2 (en) * 2012-08-20 2016-08-10 オイレスＥｃｏ株式会社 Vertical constant air volume ventilator
JP6279953B2 (en) * 2014-03-28 2018-02-14 不二サッシ株式会社 Ventilation equipment
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