JP6034044B2 - Ventilation equipment - Google Patents

Ventilation equipment Download PDF

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JP6034044B2
JP6034044B2 JP2012090858A JP2012090858A JP6034044B2 JP 6034044 B2 JP6034044 B2 JP 6034044B2 JP 2012090858 A JP2012090858 A JP 2012090858A JP 2012090858 A JP2012090858 A JP 2012090858A JP 6034044 B2 JP6034044 B2 JP 6034044B2
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arc
ventilation passage
opening
shielding plate
temperature
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JP2013217625A (en
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七岡　寛
寛 七岡
隆一 工藤
隆一 工藤
瑞基 本間
瑞基 本間
洋 黒木
洋 黒木
田中　宏典
宏典 田中
秀明 小松
秀明 小松
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Daiwa House Industry Co Ltd
Sahara KK
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Daiwa House Industry Co Ltd
Sahara KK
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Description

この発明は、屋外と屋内の間の壁に配置される換気装置に関する。   The present invention relates to a ventilation device disposed on a wall between an outdoor and an indoor.

特許文献１には、温度を感知して動作するワックスサーモエレメントによってダンパーを回動し、このダンパーによって換気通路を開閉する機構が開示されている。さらに、上記特許文献１の図６には、２５℃で換気装置が全開となり、この２５℃よりも温度が低くなるにつれて半開から全閉になるとともに、上記２５℃よりも温度が高くなるにつれて半開から全閉になるようにすることが開示されている。   Patent Document 1 discloses a mechanism in which a damper is rotated by a wax thermoelement that operates by sensing temperature, and a ventilation passage is opened and closed by the damper. Further, in FIG. 6 of Patent Document 1, the ventilator is fully opened at 25 ° C., and the half-open state is fully closed as the temperature becomes lower than 25 ° C. and the half-open state as the temperature becomes higher than 25 ° C. It is disclosed to make it fully closed.

実開平２−１２８０３６号公報Japanese Utility Model Publication No. 2-128036

しかしながら、上記特許文献１の換気装置では、換気通路に進入した風の力を上記ダンパーが受けた場合に当該ダンパーを回動させる方向に力を発生させるため、上記ダンパーが風によってがたつくおそれがあり、また、このがたつきによって上記ダンパーと上記換気通路との間に隙間が発生し、全閉状態において密閉性を確保できないおそれがある。   However, in the ventilator disclosed in Patent Document 1, when the damper receives the force of the wind that has entered the ventilation passage, the damper generates a force in the direction in which the damper is rotated. In addition, due to this rattling, a gap is generated between the damper and the ventilation passage, and there is a possibility that the sealing performance cannot be secured in the fully closed state.

この発明は、上記の事情に鑑み、換気通路に進入した風の力で開閉板ががたつくのを防止できる換気装置を提供することを課題とする。   This invention makes it a subject to provide the ventilator which can prevent that an opening-and-closing plate rattles with the force of the wind which approached the ventilation path in view of said situation.

本発明の換気装置は、上記の課題を解決するために、屋外開口と屋内開口を有する換気通路が形成された本体部と、上記換気通路内に形成された円筒状空間部と、上記円筒状空間部の円周に沿った円弧形状を有し上記円周の中心部に設けられた軸を中心に円弧移動することにより上記換気通路に対する開閉を行う円弧遮蔽板と、温度に応じた作動量で動作するアクチュエータと、上記アクチュエータの動作力で上記円弧遮蔽板を円弧移動することにより、所定温度では上記換気通路を全開状態とし、上記所定温度から低温および高温の各々の範囲で上記換気通路を半開から全閉状態とする開閉駆動部と、を備えたことを特徴とする。   In order to solve the above-described problems, the ventilator of the present invention has a main body portion in which a ventilation passage having an outdoor opening and an indoor opening is formed, a cylindrical space portion formed in the ventilation passage, and the cylindrical shape. An arc shielding plate that has an arc shape along the circumference of the space and moves around the axis provided at the center of the circumference to open and close the ventilation passage, and an operating amount corresponding to the temperature The arc shield plate is moved in a circular arc with the actuator operating at the operating force of the actuator, so that the ventilation passage is fully opened at a predetermined temperature, and the ventilation passage is opened in each range from the predetermined temperature to a low temperature and a high temperature. And an opening / closing drive unit that is in a half-open state to a fully-closed state.

上記の構成であれば、上記換気通路内に進入した風によって上記円弧遮蔽板には上記軸への力が生じ、上記円弧遮蔽板を回動させる方向に力は生じないことになる。このため、上記円弧遮蔽板が風でがたつくのを防止することができ、また、上記円弧遮蔽板の閉状態において高い密閉度を確保することができる。   If it is said structure, the force to the said axis | shaft will arise in the said arc shielding board by the wind which approached in the said ventilation channel, and force will not arise in the direction which rotates the said arc shielding board. For this reason, it is possible to prevent the arc shielding plate from shaking with the wind, and it is possible to ensure a high degree of sealing in the closed state of the arc shielding plate.

第１の組として第１円弧遮蔽板と第１アクチュエータと第１開閉駆動部とを有し、第２の組として第２円弧遮蔽板と第２アクチュエータと第２開閉駆動部とを有しており、上記第１の組によって上記低温から上記所定温度の範囲で上記第１円弧遮蔽板を円弧移動し、上記第２の組によって上記所定温度から上記高温の範囲で上記第２円弧遮蔽板を円弧移動するようにしてもよい。これによれば、単一の円弧遮蔽板を円弧移動させる場合に比べて上記第１、第２アクチュエータの各々の駆動力の負担が小さくて済むことになる。また、このように第１の組と第２の組で駆動を分担すると、上記換気通路を開状態にしておく上記所定温度の範囲を広く設定できる等の利点が得られる。   The first set includes a first arc shielding plate, a first actuator, and a first opening / closing drive unit, and the second set includes a second arc shielding plate, a second actuator, and a second opening / closing drive unit. The first arc shield plate is moved in an arc from the low temperature to the predetermined temperature by the first set, and the second arc shield plate is moved from the predetermined temperature to the high temperature by the second set. An arc may be moved. According to this, the burden of the driving force of each of the first and second actuators can be reduced as compared with the case where the single arc shielding plate is moved in an arc. In addition, when the driving is shared between the first group and the second group in this way, there is an advantage that the predetermined temperature range for keeping the ventilation passage open can be set wide.

上記第１の組の第１アクチュエータと第１開閉駆動部は上記本体部の一方の端部側に設けられており、上記第２の組の第２アクチュエータと第２開閉駆動部は上記本体部の他方の端部側に設けられていてもよい。   The first set of the first actuator and the first opening / closing drive part are provided on one end side of the main body part, and the second set of the second actuator and the second opening / closing drive part are provided on the main body part. It may be provided on the other end side.

上記円筒状空間部は横向きに形成されていてもよい。この場合、上記屋外開口は上記屋内開口の位置と同じか或いは低い位置に形成されているのがよい。   The cylindrical space portion may be formed sideways. In this case, the outdoor opening may be formed at a position that is the same as or lower than the position of the indoor opening.

本発明であれば、換気装置の開閉板が風でがたつくのを防止でき、上記開閉板の閉状態において高い密閉度を確保できる等の諸効果を奏する。   If it is this invention, it can prevent that the opening-and-closing plate of a ventilator shakes with a wind, and there exist various effects, such as ensuring a high sealing degree in the closed state of the said opening-and-closing plate.

本発明の一実施形態に係る換気装置が家屋の外壁に嵌め込まれた状態を示した概略の斜視図である。It is the schematic perspective view which showed the state by which the ventilation apparatus which concerns on one Embodiment of this invention was engage | inserted by the outer wall of a house. 図１の換気装置のＡ−Ａ断面図である。It is AA sectional drawing of the ventilation apparatus of FIG. 図１の換気装置の概略のＢ−Ｂ断面図である。It is BB sectional drawing of the outline of the ventilation apparatus of FIG. 同図（Ａ）および同図（Ｂ）は図１の換気装置の内部構造の概略の斜視図である。FIGS. 2A and 2B are schematic perspective views of the internal structure of the ventilator shown in FIG. 同図（Ａ）および同図（Ｂ）は図１の換気装置における第１ユニットの構成と動作を示した説明図である。FIGS. 2A and 2B are explanatory diagrams showing the configuration and operation of the first unit in the ventilation device of FIG. 同図（Ａ）および同図（Ｂ）は図１の換気装置における第２ユニットの構成と動作を示した説明図である。FIGS. 2A and 2B are explanatory diagrams showing the configuration and operation of the second unit in the ventilation device of FIG. 図１の換気装置の動作を示した説明図である。It is explanatory drawing which showed operation | movement of the ventilation apparatus of FIG. 本発明の他の実施形態に係る換気装置を示した断面図である。It is sectional drawing which showed the ventilation apparatus which concerns on other embodiment of this invention. 本発明の他の実施形態に係る換気装置を示した断面図である。It is sectional drawing which showed the ventilation apparatus which concerns on other embodiment of this invention. 本発明の他の実施形態に係る換気装置が家屋の外壁に嵌め込まれた状態を示した概略の斜視図である。It is the schematic perspective view which showed the state by which the ventilator which concerns on other embodiment of this invention was engage | inserted by the outer wall of a house.

次に、本発明の実施形態に係る換気装置を添付図面に基づいて具体的に説明する。なお、本発明に係る換気装置は、下記の実施形態に示したものに限定されず、その要旨を変更しない範囲において適宜変更して実施できるものである。   Next, a ventilator according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. In addition, the ventilator which concerns on this invention is not limited to what was shown to the following embodiment, In the range which does not change the summary, it can implement suitably.

図１に示しているように、この実施形態の換気装置１は、例えば家屋の窓サッシ枠２の下方側で当該窓サッシ枠２とは別体に外壁に嵌め込まれている。上記換気装置１の厚みは例えば１５０ｍｍ程度とされ、上記外壁の厚みと同じとなるように設定されている。また、上記換気装置１は横幅が例えば１８００ｍｍである横長の直方体形状をなしている。   As shown in FIG. 1, the ventilator 1 of this embodiment is fitted to the outer wall separately from the window sash frame 2 on the lower side of the window sash frame 2 of a house, for example. The thickness of the ventilation device 1 is, for example, about 150 mm, and is set to be the same as the thickness of the outer wall. The ventilator 1 has a horizontally long rectangular parallelepiped shape with a lateral width of, for example, 1800 mm.

図２にも示しているように、上記換気装置１の本体部１０内には、屋外開口１ａと屋内開口１ｂを有する換気通路１ｃが形成されており、上記換気通路１ｃ内の中程に円筒状空間部１ｄが横向きに形成されている。具体的には、上記円筒状空間部１ｄの直径は上記換気通路１ｃの高さ寸法よりも大きく、上記換気通路１ｃの中程の上下壁面には上記円筒状空間部１ｄの円周長の１／４程度の円弧長を有する円弧状凹部が形成されている。上記円筒状空間部１ｄ内には、この円筒状空間部１ｄの円周に沿った円弧形状を有する第１円弧遮蔽板１１および第２円弧遮蔽板１２が設けられている。上記第１、第２円弧遮蔽板１１、１２の円弧長は上記円筒状空間部１ｄの円周長の１／４程度とされている。   As shown in FIG. 2, a ventilation passage 1c having an outdoor opening 1a and an indoor opening 1b is formed in the main body 10 of the ventilation device 1, and a cylinder is formed in the middle of the ventilation passage 1c. A space 1d is formed sideways. Specifically, the diameter of the cylindrical space portion 1d is larger than the height dimension of the ventilation passage 1c, and the circumferential length of the cylindrical space portion 1d is 1 on the upper and lower wall surfaces in the middle of the ventilation passage 1c. An arc-shaped recess having an arc length of about / 4 is formed. A first arc shielding plate 11 and a second arc shielding plate 12 having an arc shape along the circumference of the cylindrical space portion 1d are provided in the cylindrical space portion 1d. The arc length of the first and second arc shielding plates 11 and 12 is about ¼ of the circumferential length of the cylindrical space 1d.

上記第１円弧遮蔽板１１の両端部には扇形状をした第１支持部材１１ａが固定されており、上記第１支持部材１１ａが上記円筒状空間部１ｄの中心を回転中心にして回動することにより、上記第１円弧遮蔽板１１が上記円筒状空間部１ｄの円周に沿って円弧移動する。同様に、上記第２円弧遮蔽板１２の両端部には扇形状をした第２支持部材１２ａが固定されており、上記第２支持部材１２ａが上記円筒状空間部１ｄの中心を回転中心にして回動することにより、上記第２円弧遮蔽板１２が上記円筒状空間部１ｄの円周に沿って円弧移動する。   A fan-shaped first support member 11a is fixed to both ends of the first arc shielding plate 11, and the first support member 11a rotates about the center of the cylindrical space 1d as a rotation center. Thus, the first arc shielding plate 11 moves in an arc along the circumference of the cylindrical space 1d. Similarly, a fan-shaped second support member 12a is fixed to both ends of the second arc shielding plate 12, and the second support member 12a has the center of the cylindrical space 1d as the center of rotation. By rotating, the second arc shielding plate 12 moves in an arc along the circumference of the cylindrical space portion 1d.

図３に示しているように、上記円筒状空間部１ｄの中心軸上に上記第１支持部材１１ａの回動中心となる軸部１１ｂが設けられており、この軸部１１ｂは上記第２円弧遮蔽板１２の回動中心に設けられた軸受部１２ｃに挿入されている。また、上記第２支持部材１２ａの回動中心には軸部１２ｂが設けられており、この軸部１２ｂは上記第１円弧遮蔽板１１の回動中心に設けられた軸受部１１ｃに挿入されている。すなわち、上記第１円弧遮蔽板１１および上記第２円弧遮蔽板１２は、上記円筒状空間部１ｄの円周の中心を互いに共通の回動軸として回動する。上記軸部１１ｂの端部には第１ユニット３におけるピニオン３１（第１開閉駆動部）が固定されている。また、上記軸部１２ｂの端部には第２ユニット４におけるピニオン４１（第２開閉駆動部）が固定されている。上記第１ユニット３は上記本体部１０の一方の端部側に設けられており、上記第２ユニット４は上記本体部１０の他方の端部側に設けられている。   As shown in FIG. 3, a shaft portion 11b serving as a rotation center of the first support member 11a is provided on the central axis of the cylindrical space portion 1d. The shaft portion 11b is formed of the second arc. It is inserted into a bearing portion 12 c provided at the rotation center of the shielding plate 12. Further, a shaft portion 12b is provided at the rotation center of the second support member 12a, and this shaft portion 12b is inserted into a bearing portion 11c provided at the rotation center of the first arc shielding plate 11. Yes. In other words, the first arc shielding plate 11 and the second arc shielding plate 12 rotate with the center of the circumference of the cylindrical space portion 1d as a common rotation axis. A pinion 31 (first opening / closing drive unit) in the first unit 3 is fixed to the end of the shaft portion 11b. A pinion 41 (second opening / closing drive unit) in the second unit 4 is fixed to the end of the shaft portion 12b. The first unit 3 is provided on one end side of the main body 10, and the second unit 4 is provided on the other end side of the main body 10.

図４（Ａ）および図４（Ｂ）に示しているように、上記ピニオン３１にはラック３２（第１開閉駆動部）が歯合しており、このラック３２が移動することによって上記第１支持部材１１ａおよび上記第１円弧遮蔽板１１が上記軸部１１ｂを中心にして回動する。また、上記ピニオン４１にはラック４２（第２開閉駆動部）が歯合しており、このラック４２が移動することによって上記第２支持部材１２ａおよび上記第２円弧遮蔽板１２が上記軸部１２ｂを中心にして回動する。   As shown in FIGS. 4A and 4B, a rack 32 (first opening / closing drive unit) meshes with the pinion 31, and the rack 32 moves to move the first. The support member 11a and the first arc shielding plate 11 rotate about the shaft portion 11b. A rack 42 (second opening / closing drive unit) is engaged with the pinion 41, and the rack 42 moves to move the second support member 12a and the second arc shielding plate 12 to the shaft portion 12b. Rotate around the center.

図５（Ａ）および図５（Ｂ）は、第１ユニット３の構成および動作を示している。第１ユニット３は、形状記憶合金からなる温度伸縮ばね３３（第１のアクチュエータ）とバイアスばね３４とを備えている。上記温度伸縮ばね３３の上端部は一定位置に固定されており、下端部はスライド部材３５の下部側片３５ａに固定されている。また、バイアスばね３４の下端部は一定位置に固定されており、上端部はスライド部材３５の上部側片３５ｂに固定されている。スライド部材３５は図示しないガイドによって案内されて上下方向に移動し、この上下方向の移動によってリンク３６が回動し、このリンク３６によって上記ラック３２が上下移動する。なお、換気装置１の屋外側には屋外開口１ａを覆うグリルが設けられており、このグリルに開けられた開口から入る屋外の空気が上記温度伸縮ばね３３の周囲に流れ込むようにしてあり、上記温度伸縮ばね３３は外気温度を感知することになる。   FIG. 5A and FIG. 5B show the configuration and operation of the first unit 3. The first unit 3 includes a temperature expansion / contraction spring 33 (first actuator) made of a shape memory alloy and a bias spring 34. The upper end of the temperature expansion / contraction spring 33 is fixed at a fixed position, and the lower end is fixed to the lower side piece 35 a of the slide member 35. The lower end of the bias spring 34 is fixed at a fixed position, and the upper end is fixed to the upper side piece 35 b of the slide member 35. The slide member 35 is guided by a guide (not shown) and moves in the vertical direction. The vertical movement causes the link 36 to rotate, and the link 36 moves the rack 32 up and down. In addition, the grill which covers the outdoor opening 1a is provided in the outdoor side of the ventilation apparatus 1, The outdoor air which enters from the opening opened to this grille flows into the circumference | surroundings of the said temperature expansion-contraction spring 33, The above-mentioned The temperature expansion spring 33 senses the outside air temperature.

上記温度伸縮ばね３３は、例えば温度が２２℃を越えると縮みだして上記バイアスばね３４のばね力に対抗するようになり、温度に応じた縮み量でスライド部材３５を移動させる。そして、上記温度伸縮ばね３３は、例えば温度が２５℃以上になると最も縮むように設計されおり、温度が２２℃を越えて２５℃となるまでの間において、上記第１円弧遮蔽板１１は屋外開口１ａ側を塞いでいた状態から９０°回動して換気通路１ｃの上壁面の円弧状凹部に至る。なお、上記第１円弧遮蔽板１１の移動範囲を９０°に制限するためのストッパを上記円筒状空間部１ｄに設けておいてもよいし、或いは、上記スライド部材３５等の移動範囲を制限しておくことで、上記第１円弧遮蔽板１１の回動範囲を９０°に制限することもできる。   For example, when the temperature exceeds 22 ° C., the temperature expansion / contraction spring 33 starts to contract against the spring force of the bias spring 34, and moves the slide member 35 with a contraction amount corresponding to the temperature. The temperature expansion and contraction spring 33 is designed to contract most when the temperature reaches 25 ° C. or higher, for example. The first arc shield plate 11 is open to the outside until the temperature exceeds 22 ° C. and reaches 25 ° C. From the state of closing the 1a side, it is turned by 90 ° to reach the arc-shaped recess on the upper wall surface of the ventilation passage 1c. A stopper for limiting the movement range of the first arc shielding plate 11 to 90 ° may be provided in the cylindrical space 1d, or the movement range of the slide member 35 and the like may be limited. Thus, the rotation range of the first arc shielding plate 11 can be limited to 90 °.

図６（Ａ）および図６（Ｂ）は、第２ユニット４の構成および動作を示している。第２ユニット４は、形状記憶合金からなる温度伸縮ばね４３（第２のアクチュエータ）とバイアスばね４４とを備えている。上記温度伸縮ばね４３の下端部は一定位置に固定されており、上端部はスライド部材４５の上部側片４５ａに固定されている。また、バイアスばね４４の上端部は一定位置に固定されており、下端部はスライド部材４５の下部側片４５ｂに固定されている。スライド部材４５は図示しないガイドによって案内されて上下方向に移動し、この上下方向の移動によってリンク４６が回動し、このリンク４６によって上記ラック４２が上下移動する。上記温度伸縮ばね４３も外気温度を感知する。   FIG. 6A and FIG. 6B show the configuration and operation of the second unit 4. The second unit 4 includes a temperature expansion / contraction spring 43 (second actuator) made of a shape memory alloy and a bias spring 44. The lower end portion of the temperature expansion / contraction spring 43 is fixed at a fixed position, and the upper end portion is fixed to the upper side piece 45 a of the slide member 45. The upper end of the bias spring 44 is fixed at a fixed position, and the lower end is fixed to the lower side piece 45 b of the slide member 45. The slide member 45 is guided by a guide (not shown) to move in the vertical direction, the link 46 is rotated by the vertical movement, and the rack 42 is moved up and down by the link 46. The temperature expansion spring 43 also senses the outside temperature.

上記温度伸縮ばね４３は、例えば温度が２５℃を越えると縮みだして上記バイアスばね４４のばね力に対抗するようになり、温度に応じた縮み量でスライド部材４５を移動させる。そして、上記温度伸縮ばね４３は、例えば温度が２８℃以上になると最も縮むように設計されており、温度が２５℃を越えて２８℃となるまでの間において、上記第２円弧遮蔽板１２は下壁面の円弧状凹部に位置していた状態から９０°回動して換気通路１ｃの屋内開口１ｂ側を塞ぐ位置に至る。なお、上記第２円弧遮蔽板１２の移動範囲を９０°に制限するためのストッパを上記円筒状空間部１ｄに設けておいてもよいし、或いは、上記スライド部材４５等の移動範囲を制限しておくことで、上記第２円弧遮蔽板１２の回動範囲を９０°に制限することもできる。   For example, when the temperature exceeds 25 ° C., the temperature expansion / contraction spring 43 starts to contract and opposes the spring force of the bias spring 44, and moves the slide member 45 with a contraction amount corresponding to the temperature. The temperature expansion spring 43 is designed to contract most when the temperature reaches 28 ° C. or higher, for example, and the second arc shielding plate 12 is lowered until the temperature exceeds 25 ° C. and reaches 28 ° C. It turns 90 degrees from the state where it was located in the circular-arc-shaped recessed part of the wall surface, and reaches the position which blocks the indoor opening 1b side of the ventilation passage 1c. A stopper for limiting the movement range of the second arc shielding plate 12 to 90 ° may be provided in the cylindrical space portion 1d, or the movement range of the slide member 45 and the like may be limited. Thus, the rotation range of the second arc shielding plate 12 can be limited to 90 °.

図７は外気温度の変動による上記換気装置１の動作を示した説明図である。この例では、外気温度が２２℃（低温）以下の状態では換気装置１は全閉状態を維持する。外気温度が２２℃（低温）を越えると上記第１円弧遮蔽板１１だけが回動を開始し、半開の状態となり、外気温度が２５℃（所定温度）に至ると、全開の状態となる。そして、外気温度が２５℃（所定温度）を越えると上記第２円弧遮蔽板１２だけが回動を開始し、半開の状態となり、外気温度が２８℃（高温）に至ると、全閉の状態となる。外気温度が２８℃（高温）以上の状態では換気装置１は全閉状態を維持することになる。   FIG. 7 is an explanatory diagram showing the operation of the ventilator 1 due to fluctuations in outside air temperature. In this example, the ventilator 1 maintains the fully closed state when the outside air temperature is 22 ° C. (low temperature) or lower. When the outside air temperature exceeds 22 ° C. (low temperature), only the first arc shielding plate 11 starts to rotate and is in a half-open state, and when the outside air temperature reaches 25 ° C. (predetermined temperature), it is in a fully open state. Then, when the outside air temperature exceeds 25 ° C. (predetermined temperature), only the second arc shielding plate 12 starts to rotate and is in a half-open state, and when the outside air temperature reaches 28 ° C. (high temperature), it is in a fully closed state. It becomes. When the outside air temperature is 28 ° C. (high temperature) or higher, the ventilator 1 is maintained in a fully closed state.

上記の換気装置１であれば、上記換気通路１ｃ内に進入した風によって上記円弧遮蔽板１１、１２には上記軸部１１ｂ、１２ｂへの力が生じ、上記円弧遮蔽板１１、１２を回動させる方向に力は生じないことになる。このため、上記円弧遮蔽板１１、１２が風でがたつくのを防止することができ、また、上記円弧遮蔽板１１、１２における閉状態において高い密閉度を確保することができる。   If it is said ventilation apparatus 1, the force which acts on said axial parts 11b and 12b will arise in the said arc shielding plates 11 and 12 with the wind which approached in the said ventilation channel | path 1c, and the said arc shielding plates 11 and 12 will be rotated. There will be no force in the direction of movement. For this reason, the arc shielding plates 11 and 12 can be prevented from rattling with the wind, and a high degree of sealing can be secured in the closed state of the arc shielding plates 11 and 12.

また、この実施形態では、上記換気装置１の厚みは当該換気装置１が設置される家屋の外壁厚と同じにされており、上記円筒状空間部１ｄを大きくして大きな換気容量を確保することが可能である。   In this embodiment, the thickness of the ventilator 1 is the same as the thickness of the outer wall of the house where the ventilator 1 is installed, and the cylindrical space 1d is enlarged to ensure a large ventilation capacity. Is possible.

また、上記第１ユニット３と第２ユニット４を備え、第１円弧遮蔽板１１と第２円弧遮蔽板１２を個別に駆動するようにしたので、単一の円弧遮蔽板を円弧移動させる場合に比べて上記温度伸縮ばね３３、４３の各々の駆動力の負担が小さくて済むことになる。また、このように上記第１ユニット３と第２ユニット４で駆動を分担すると、上記円筒状空間部１ｄを全開状態にしておく上記所定温度の範囲を例えば２４℃〜２６℃のように広く設定できる等の利点が得られる。   Further, since the first unit 3 and the second unit 4 are provided and the first arc shielding plate 11 and the second arc shielding plate 12 are individually driven, the single arc shielding plate is moved in an arc. In comparison, the burden of the driving force of each of the temperature expansion and contraction springs 33 and 43 can be reduced. In addition, when the first unit 3 and the second unit 4 share the driving in this way, the predetermined temperature range in which the cylindrical space 1d is fully opened is set to a wide range, for example, 24 ° C to 26 ° C. Advantages such as being able to be obtained.

単一の円弧遮蔽板を移動させる構造を排除するものではない。例えば、図８に示している換気装置１Ａのように、円筒状空間部１ｄの円周長の１／４程度の長さを有する単一の円弧遮蔽板１３を略１８０°の範囲で温度変化に基づいて円弧移動させる構造としてもよい。   It does not exclude a structure for moving a single arc shielding plate. For example, as in the ventilator 1A shown in FIG. 8, the temperature of a single arc shielding plate 13 having a length of about ¼ of the circumferential length of the cylindrical space 1d is changed within a range of about 180 °. It is good also as a structure which carries out circular arc movement based on.

図９は、他の実施形態にかかる換気装置１Ｂを示した断面図である。この換気装置１Ｂの換気通路１ｃは段状に形成されており、屋外開口１ａは屋内開口１ｂよりも低い位置に形成されている。このため、雨水などが屋内側に入り込み難い。さらに、この換気装置１Ｂでは、換気装置１、１Ａにおいて存在していた換気通路１ｃにおける上下壁面の円弧状凹部が無くされている。このため、円筒状空間部１ｄに塵埃が溜まり難い。   FIG. 9 is a cross-sectional view showing a ventilation device 1B according to another embodiment. The ventilation passage 1c of the ventilation device 1B is formed in a step shape, and the outdoor opening 1a is formed at a position lower than the indoor opening 1b. For this reason, it is difficult for rainwater or the like to enter the indoor side. Furthermore, in this ventilator 1B, the circular arc-shaped recessed part of the upper and lower wall surface in the ventilation path 1c which existed in the ventilators 1 and 1A is eliminated. For this reason, it is difficult for dust to collect in the cylindrical space 1d.

図１０は、他の実施形態にかかる換気装置１Ｃを示した断面図である。この換気装置１Ｃは、縦置き用に構成されたものであり、屋外開口１ａには雨水の進入を防止する雨水進入防止板１４が設けられている。   FIG. 10 is a cross-sectional view showing a ventilator 1C according to another embodiment. This ventilator 1C is configured for vertical installation, and a rainwater intrusion prevention plate 14 for preventing rainwater from entering is provided in the outdoor opening 1a.

なお、上記の換気装置１，１Ａ，１Ｂにおいても雨水進入防止板やカバーを設けてもよい。また、これらの換気装置において防虫ネットや花粉除去のフィルター等を設けてもよい。   In addition, you may provide a rain water approach prevention board and a cover also in said ventilator 1,1A, 1B. Moreover, you may provide an insect repellent net, a pollen removal filter, etc. in these ventilation apparatuses.

また、各ユニット３、４において温度伸縮ばね３３、４３とバイアスばね３４、４４とスライド部材３５、４５のセットを複数設けて開閉駆動力を向上させるようにしてもよい。   Further, in each of the units 3 and 4, a plurality of sets of the temperature expansion / contraction springs 33 and 43, the bias springs 34 and 44, and the slide members 35 and 45 may be provided to improve the opening / closing driving force.

１、１Ａ、１Ｂ、１Ｃ 換気装置
１ａ 屋外開口
１ｂ 屋内開口
１ｃ 換気通路
１ｄ 円筒状空間部
１０ 本体部
１１ 第１円弧遮蔽板
１１ａ 第１支持部材
１１ｂ 軸部（軸）
１２ 第２円弧遮蔽板
１２ａ 第２支持部材
１２ｂ 軸部（軸）
１３ 単一の円弧遮蔽板
３ 第１ユニット（第１の組）
３１ ピニオン（第１開閉駆動部）
３２ ラック（第１開閉駆動部）
３３ 温度伸縮ばね（第１のアクチュエータ）
３４ バイアスばね
４ 第２ユニット（第２の組）
４１ ピニオン（第２開閉駆動部）
４２ ラック（第２開閉駆動部）
４３ 温度伸縮ばね（第２のアクチュエータ）
４４ バイアスばね DESCRIPTION OF SYMBOLS 1, 1A, 1B, 1C Ventilation apparatus 1a Outdoor opening 1b Indoor opening 1c Ventilation passage 1d Cylindrical space part 10 Main part 11 First arc shielding board 11a First support member 11b Shaft part (shaft)
12 Second arc shielding plate 12a Second support member 12b Shaft (shaft)
13 Single arc shield 3 First unit (first set)
31 pinion (first opening / closing drive)
32 racks (first opening / closing drive)
33 Temperature expansion and contraction spring (first actuator)
34 Bias spring 4 Second unit (second set)
41 pinion (second opening / closing drive)
42 rack (second opening / closing drive)
43 Temperature expansion and contraction spring (second actuator)
44 Bias spring

Claims (5)

屋外開口と屋内開口を有する換気通路が形成された本体部と、上記換気通路内に形成された円筒状空間部と、上記円筒状空間部の円周に沿った円弧形状を有し上記円周の中心部で換気通路方向に交差して設けられた軸を中心に円弧移動することにより上記換気通路に対する開閉を行う円弧遮蔽板と、温度に応じた作動量で動作するアクチュエータと、上記アクチュエータの動作力で上記円弧遮蔽板を円弧移動することにより、所定温度では上記換気通路を全開状態とし、上記所定温度から低温および高温の各々の範囲で上記換気通路を半開から全閉状態とする開閉駆動部と、を備え、
第１の組として第１円弧遮蔽板と第１アクチュエータと第１開閉駆動部とを有し、第２の組として第２円弧遮蔽板と第２アクチュエータと第２開閉駆動部とを有しており、上記第１の組によって上記低温から上記所定温度の範囲で、上記第１円弧遮蔽板を円弧移動し、上記第２の組によって上記所定温度から上記高温の範囲で上記第２円弧遮蔽板を円弧移動させるようにし、
上記低温時の上記換気通路の全閉状態では、第１円弧遮蔽板は上記換気通路に対して全閉となるように位置する一方で、第２円弧遮蔽板は上記換気通路に対して全開となるように位置し、上記高温時の上記換気通路の全閉状態では、第１円弧遮蔽板は上記換気通路に対して全開となるように位置する一方で、第２円弧遮蔽板は上記換気通路に対して全閉となるように位置することを特徴とする換気装置。 A main body having a ventilation passage having an outdoor opening and an indoor opening, a cylindrical space formed in the ventilation passage, and a circular arc shape along the circumference of the cylindrical space. A circular arc shielding plate that opens and closes the ventilation passage by moving in an arc around the axis provided in the center of the ventilation passage, and an actuator that operates with an operating amount according to temperature. Opening and closing drive that causes the ventilation passage to be fully opened at a predetermined temperature and moves the ventilation passage from a half-open state to a fully-closed state in each of a range from the predetermined temperature to a low temperature and a high temperature by moving the arc shielding plate in an arc with an operating force comprises a part, the,
The first set includes a first arc shielding plate, a first actuator, and a first opening / closing drive unit, and the second set includes a second arc shielding plate, a second actuator, and a second opening / closing drive unit. The first arc shield plate is moved by the first set in a range from the low temperature to the predetermined temperature, and the second arc shield plate is set in the range from the predetermined temperature to the high temperature by the second set. To move the arc,
In the fully closed state of the ventilation passage at the low temperature, the first arc shielding plate is positioned so as to be fully closed with respect to the ventilation passage, while the second arc shielding plate is fully opened with respect to the ventilation passage. In the fully closed state of the ventilation passage at the time of the high temperature, the first arc shielding plate is located so as to be fully opened with respect to the ventilation passage, while the second arc shielding plate is located in the ventilation passage. Ventilator characterized by being positioned so as to be fully closed . 請求項１に記載の換気装置において、上記第１の組の第１アクチュエータおよび第１開閉駆動部は上記本体部の一方の端部側に設けられており、上記第２の組の第２アクチュエータおよび第２開閉駆動部は上記本体部の他方の端部側に設けられていることを特徴とする換気装置。   2. The ventilation device according to claim 1, wherein the first actuator of the first set and the first opening / closing drive unit are provided on one end side of the main body, and the second actuator of the second set. And the second opening / closing drive part is provided on the other end side of the main body part. 請求項１または請求項２に記載の換気装置において、上記円筒状空間部は横向きに形成されていることを特徴とする換気装置。   The ventilator according to claim 1 or 2, wherein the cylindrical space is formed sideways. 請求項３に記載の換気装置において、上記屋外開口は上記屋内開口の位置と同じか或いは低い位置に形成されていることを特徴とする換気装置。   The ventilator according to claim 3, wherein the outdoor opening is formed at a position equal to or lower than a position of the indoor opening. 請求項１または請求項２に記載の換気装置において、上記円筒状空間部は縦置き用に構成されていることを特徴とする換気装置。 The ventilator according to claim 1 or 2, wherein the cylindrical space is configured for vertical installation .
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