JP6951696B2 - Ventilation device - Google Patents

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JP6951696B2
JP6951696B2 JP2017199956A JP2017199956A JP6951696B2 JP 6951696 B2 JP6951696 B2 JP 6951696B2 JP 2017199956 A JP2017199956 A JP 2017199956A JP 2017199956 A JP2017199956 A JP 2017199956A JP 6951696 B2 JP6951696 B2 JP 6951696B2
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竜治 佐藤
竜治 佐藤
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Sahara KK
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Description

本発明は、環境温度に応じて自動換気を行なう換気装置に関する。 The present invention relates to a ventilation device that automatically ventilates according to an environmental temperature.

一般的な換気装置は、換気口を有する細長い装置本体と、この装置本体に回動可能またはスライド可能に支持され換気口を開閉する作動板と、この作動板を手動で開閉操作する操作部材とを備えている。 A general ventilation device includes an elongated device body having a ventilation port, an operating plate that is rotatably or slidably supported by the device body to open and close the ventilation port, and an operating member that manually opens and closes the operating plate. It has.

上記のように手動で作動板を開閉操作する場合、適切な開閉制御がなされない場合もある。例えば、冬季に暖房している状況で換気通路を開いたまま放置すると、屋外の冷気が入り込んだり室内の暖気が逃げたりするため、暖房効率が低くなりエネルギーの浪費を招く。 When the operating plate is manually opened and closed as described above, proper opening and closing control may not be performed. For example, if the ventilation passage is left open during heating in winter, cold air from the outside may enter or warm air from the room may escape, resulting in low heating efficiency and waste of energy.

特許文献１、２に開示された換気装置は、細長い装置本体と、この装置本体内に回動可能かつ装置本体の長手方向にスライド可能に支持された細長い作動板と、この作動板を環境温度に応じて自動的に開閉する温度感応型アクチュエータを備えている。 The ventilation device disclosed in Patent Documents 1 and 2 includes an elongated device main body, an elongated operating plate rotatably supported in the device main body and slidable in the longitudinal direction of the device main body, and the operating plate having an ambient temperature. It is equipped with a temperature-sensitive actuator that opens and closes automatically according to the situation.

上記温度感応型アクチュエータは、移動カムと、この移動カムの一方側に配置された形状記憶バネ（形状記憶合金製のバネ、以下同じ）と、他方側に配置されたバイアスバネとを備えている。移動カムはこれら２つのバネの引張り力に応じて位置調節される。具体的に説明すると、高温時には形状記憶バネの弾性力が強まってバイアスバネの力に打ち勝ち、移動カムは一方側に移動し、この移動カムと作動板に形成されたカムフォロア部のカム作用により、作動板は開き位置へ回動する。低温時には形状記憶バネのバネ力が弱まるためバイアスバネの力で移動カムが他方側に移動し、この移動カムとカムフォロア部のカム作用により、作動板は閉じ位置へ回動する。 The temperature-sensitive actuator includes a moving cam, a shape memory spring (a spring made of a shape memory alloy, the same applies hereinafter) arranged on one side of the moving cam, and a bias spring arranged on the other side. .. The moving cam is positioned according to the tensile force of these two springs. Specifically, at high temperatures, the elastic force of the shape memory spring strengthens to overcome the force of the bias spring, the moving cam moves to one side, and the cam action of the cam follower formed on the moving cam and the operating plate causes the moving cam to move to one side. The actuating plate rotates to the open position. At low temperatures, the spring force of the shape memory spring weakens, so the moving cam moves to the other side due to the force of the bias spring, and the cam action of the moving cam and the cam follower causes the operating plate to rotate to the closed position.

特許文献１、２の換気装置は、さらに強制閉じ機能を備えている。この強制閉じ機能を果たすために、換気装置は、装置本体に固定された固定カムと、作動板に形成された他のカムフォロア部とを有している。例えば風雨の強い時には、操作部材の操作により作動板を一方側へスライドさせ、上記他のカムフォロア部と固定カムとのカム作用により、作動板を閉じ位置へ回動させ、雨水の侵入を防ぐ。 The ventilation devices of Patent Documents 1 and 2 further have a forced closing function. In order to fulfill this forced closing function, the ventilation device has a fixed cam fixed to the main body of the device and another cam follower portion formed on the operating plate. For example, when the wind and rain are strong, the operating plate is slid to one side by operating the operating member, and the operating plate is rotated to the closed position by the cam action of the other cam follower portion and the fixed cam to prevent rainwater from entering.

特許文献１の第２実施形態の換気装置は、さらに強制開き機能を備えている。強制閉じおよび強制開きの機能を果たすために、固定カムには２つのカム面が形成され、作動板には固定カム用の２つのカムフォロア部が形成されている。例えば石油暖房ストーブやガスコンロ等を用いて酸素を多く必要とする時や室内の臭気を逃がしたい時には、操作部材の操作により作動板を上記強制閉じ方向と逆方向にスライドさせ、この作動板のカムフォロア部と固定カムとのカム作用により、作動板を開き位置に回動させる。 The ventilation device of the second embodiment of Patent Document 1 further has a forced opening function. In order to perform the functions of forced closing and forced opening, the fixed cam is formed with two cam surfaces, and the operating plate is formed with two cam followers for the fixed cam. For example, when a large amount of oxygen is required using an oil heating stove or a gas stove, or when it is desired to release the odor in the room, the operating plate is slid in the direction opposite to the forced closing direction by operating the operating member, and the cam follower of this operating plate is used. The actuating plate is rotated to the open position by the cam action of the portion and the fixed cam.

特許文献１の換気装置では、スライダが装置本体の長手方向にスライド可能に配置されており、このスライダに移動カムが装置本体の長手方向に移動可能に支持されるとともに、形状記憶バネとバイアスバネが装着されている。スライダは、操作部材に連結されており、強制閉じ、強制開きの時には、操作部材により作動板とスライダが一緒に移動するようになっている。
特許文献２の換気装置では、形状記憶バネの一端が移動カムに連結され他端が装置本体に固定されており、バイアスバネの一端が移動カムに連結され他端が操作部材に連結されている。 In the ventilation device of Patent Document 1, a slider is slidably arranged in the longitudinal direction of the device body, and a moving cam is supported by the slider so as to be movable in the longitudinal direction of the device body, and a shape memory spring and a bias spring. Is installed. The slider is connected to the operating member, and the operating plate and the slider are moved together by the operating member at the time of forced closing and forced opening.
In the ventilation device of Patent Document 2, one end of the shape memory spring is connected to the moving cam and the other end is fixed to the device main body, and one end of the bias spring is connected to the moving cam and the other end is connected to the operating member. ..

特開２００４−１７００４０号公報Japanese Unexamined Patent Publication No. 2004-170040 特開２００４−２３９５４６号公報Japanese Unexamined Patent Publication No. 2004-239546

特許文献１、２の換気装置では、操作部材を操作して作動板を強制的に閉じる際に、形状記憶バネやバイアスバネの抵抗を受けやすく、安定した操作が行なえなかった。
特許文献１の第２実施形態の換気装置では、強制開き操作の際にも同様の不都合があった。 In the ventilation devices of Patent Documents 1 and 2, when the operating member is operated to forcibly close the operating plate, the resistance of the shape memory spring and the bias spring is easily received, and stable operation cannot be performed.
The ventilation device of the second embodiment of Patent Document 1 has the same inconvenience during the forced opening operation.

本発明は、上記課題を解決するためになされたものであり、換気装置において、
（ア）主壁に換気口を形成してなる細長い装置本体と、
（イ）上記装置本体の長手方向に延び、一方の縁部に、上記装置本体に回動可能かつ上記装置本体の長手方向にスライド可能に支持される軸部を有し、他方の縁部に第１、第２のカムフォロア部を有し、回動に伴い上記主壁に近づいたり離れたりして上記換気口を開閉する作動板と、
（ウ）自動制御位置と、この自動制御位置から第１方向側に離れた強制閉じ位置と、この自動制御位置から上記第１方向とは逆の第２方向側に離れた強制開き位置との間で、上記装置本体の長手方向に移動可能にして上記装置本体に支持されるとともに、上記作動板の回動を許容するようにして上記作動板に連結された操作部材と、
（エ）上記操作部材が上記自動制御位置にあるときに、環境温度に応じて上記作動板を開閉する自動制御モードを実行する温度感応型アクチュエータと、
を備え、上記温度感応型アクチュエータは、
ａ．上記装置本体の長手方向に移動可能であり、上記室内側に向かって第１方向に進むように傾斜した互いに平行をなす第１、第２のカム面を有し、上記第１方向の移動に伴い上記第１カム面が上記第１カムフォロア部と協働して上記作動板を開き方向に回動させ、上記第２方向の移動に伴い上記第２カム面が上記第２カムフォロア部と協働して上記作動板を閉じ方向に回動させる移動カムと、
ｂ．一端が上記移動カムに固定され他端が上記装置本体に固定され、上記移動カムを上記第１方向に付勢する形状記憶合金製のバネと、
ｃ．一端が上記移動カムに固定され他端が上記操作本体に固定され、上記移動カムを上記第２方向に付勢するバイアスバネと、
ｄ．上記装置本体に固定され、上記移動カムの上記第１方向への移動を規制することにより、上記自動制御モードでの上記作動板の開き方向の限界位置を決定する第１ストッパと、
ｅ．上記装置本体に固定され、上記移動カムの上記第２方向への移動を規制することにより、上記自動制御モードでの上記作動板の閉じ方向の限界位置を決定する第２ストッパと、
を備えたことを特徴とする。 The present invention has been made to solve the above problems, and in a ventilation system,
(A) An elongated device body with a ventilation port formed on the main wall,
(B) A shaft portion extending in the longitudinal direction of the device body and supported by the device body in a rotatable direction and slidable in the longitudinal direction of the device body is provided at one edge portion, and the other edge portion has a shaft portion. An operating plate that has first and second cam followers and opens and closes the ventilation port by approaching or moving away from the main wall as it rotates.
(C) An automatic control position, a forced closing position separated from the automatic control position in the first direction, and a forced opening position separated from the automatic control position in the second direction opposite to the first direction. An operating member connected to the operating plate so as to be movable in the longitudinal direction of the apparatus main body and supported by the apparatus main body and to allow rotation of the operating plate.
(D) A temperature-sensitive actuator that executes an automatic control mode that opens and closes the operating plate according to the environmental temperature when the operating member is in the automatic control position.
The temperature-sensitive actuator
a. It has first and second cam surfaces that are movable in the longitudinal direction of the main body of the device and are inclined so as to proceed in the first direction toward the indoor side, and are parallel to each other. Along with this, the first cam surface cooperates with the first cam follower portion to rotate the operating plate in the opening direction, and as the second cam surface moves, the second cam surface cooperates with the second cam follower portion. And a moving cam that rotates the operating plate in the closing direction,
b. A spring made of a shape memory alloy, one end of which is fixed to the moving cam and the other end of which is fixed to the device body, and which urges the moving cam in the first direction.
c. A bias spring having one end fixed to the moving cam and the other end fixed to the operating body to urge the moving cam in the second direction.
d. A first stopper fixed to the main body of the device and restricting the movement of the moving cam in the first direction to determine a limit position in the opening direction of the operating plate in the automatic control mode.
e. A second stopper fixed to the main body of the device and restricting the movement of the moving cam in the second direction to determine a limit position in the closing direction of the operating plate in the automatic control mode.
It is characterized by being equipped with.

上記構成によれば、自動制御モードから強制閉じや強制開きを実行する際に、作動板の第１、第２カムフォロア部が移動カムの第１、第２カム面に沿って移動するので、形状記憶合金製のバネやバイアスバネの抵抗が少なくて済み、操作性を高めることができる。
第１、第２ストッパにより移動カムの第１、第２方向の移動を制限することにより、自動制御モードでの作動板の開き方向、閉じ方向の限界位置を決定することができる。
作動板が強制閉じ状態にあるとき、環境温度が高温になっても、第１ストッパにより移動カムの第１方向への移動が制限されているので、作動板に移動カムのカム作用による開き方向の力が作用することはなく、作動板の強制閉じ状態を確実に維持できる。
作動板が強制開き状態にあるとき、環境温度が低温になっても、第２ストッパにより移動カムの第２方向への移動が制限されているので、作動板に移動カムのカム作用による閉じ方向の力が作用することはなく、作動板の強制開き状態を維持できる。 According to the above configuration, when the forced closing or the forced opening is executed from the automatic control mode, the first and second cam followers of the operating plate move along the first and second cam surfaces of the moving cam, so that the shape is formed. The resistance of springs made of memory alloy and bias springs can be reduced, and operability can be improved.
By restricting the movement of the moving cam in the first and second directions by the first and second stoppers, it is possible to determine the limit positions in the opening direction and the closing direction of the operating plate in the automatic control mode.
When the operating plate is in the forcibly closed state, even if the environmental temperature becomes high, the movement of the moving cam in the first direction is restricted by the first stopper, so that the opening direction due to the cam action of the moving cam on the operating plate. The force does not act, and the forced closing state of the operating plate can be reliably maintained.
When the operating plate is in the forced open state, even if the environmental temperature becomes low, the movement of the moving cam in the second direction is restricted by the second stopper, so the closing direction due to the cam action of the moving cam on the operating plate. The force does not act, and the forced opening state of the operating plate can be maintained.

好ましくは、さらに、上記装置本体の長手方向に延びて上記装置本体に固定されたスライドガイドを備え、このスライドガイドの長手方向中間部にはガイド窓が形成されており、上記移動カムは、上記スライドガイドのガイド窓に挿入された状態で上記スライドガイドにスライド可能に支持され、上記ガイド窓の長手方向両側縁が、上記第１、第２のストッパとして提供される。
上記構成によれば、第１、第２ストッパの構造を簡略化できるとともに、温度感応アクチュエータをユニット化することができる。 Preferably, a slide guide extending in the longitudinal direction of the device body and fixed to the device body is provided, and a guide window is formed in the intermediate portion of the slide guide in the longitudinal direction. It is slidably supported by the slide guide while being inserted into the guide window of the slide guide, and both longitudinal edges of the guide window are provided as the first and second stoppers.
According to the above configuration, the structures of the first and second stoppers can be simplified, and the temperature-sensitive actuator can be unitized.

好ましくは、上記作動板は、さらに第３、第４のカムフォロア部を有し、上記装置本体には、上記移動カムから上記装置本体の長手方向に離れた位置において、固定カムが固定されており、上記固定カムは、上記移動カムの上記第１、第２のカム面と平行な第３、第４のカム面を有し、上記自動制御モードでは上記第３、第４のカムフォロア部と干渉せずに上記作動板の回動を許容し、上記自動制御モードで上記移動カムが上記第１ストッパにより上記第１方向の限界位置にあるとき、上記第４カムフォロア部が上記第４カム面に近接した位置にあり、上記自動制御モードで上記移動カムが上記第２ストッパにより上記第２方向の限界位置にあるとき、上記第３カムフォロア部が上記第３カム面に近接した位置にある。
上記構成によれば、自動制御モードにおいて環境温度が高く移動カムが第１方向の限界位置にある時（作動板が開き方向の限界位置にある時）に強制閉じ操作を行う場合には、作動板の第２カムフォロア部と移動カムの第２カム面とのカム作用、および作動板の第４カムフォロア部と固定カムの第４カム面とのカム作用により、作動板を安定して閉じ状態にすることができる。
また、自動制御モードにおいて環境温度が低く移動カムが第２方向の限界位置にある時（作動板が閉じ方向の限界位置にある時）に強制開き操作を行う場合には、作動板の第１カムフォロア部と移動カムの第１カム面とのカム作用、および作動板の第３カムフォロア部と固定カムの第３カム面とのカム作用により、作動板を安定して閉じ状態にすることができる。 Preferably, the operating plate further has third and fourth cam followers, and a fixed cam is fixed to the device main body at a position separated from the moving cam in the longitudinal direction of the device main body. The fixed cam has third and fourth cam surfaces parallel to the first and second cam surfaces of the moving cam, and interferes with the third and fourth cam followers in the automatic control mode. When the moving cam is in the limit position in the first direction by the first stopper in the automatic control mode, the fourth cam follower portion is placed on the fourth cam surface. When the moving cam is in the limit position in the second direction by the second stopper in the automatic control mode, the third cam follower portion is in a position close to the third cam surface.
According to the above configuration, when the ambient temperature is high and the moving cam is in the limit position in the first direction (when the operation plate is in the limit position in the opening direction) in the automatic control mode, the forced closing operation is performed. The actuating plate is stably closed by the cam action between the second cam follower portion of the plate and the second cam surface of the moving cam, and the cam action between the fourth cam follower portion of the actuating plate and the fourth cam surface of the fixed cam. can do.
Further, when the forced opening operation is performed when the ambient temperature is low and the moving cam is in the limit position in the second direction (when the operation plate is in the limit position in the closing direction) in the automatic control mode, the first operation plate is used. The working plate can be stably closed by the cam action between the cam follower portion and the first cam surface of the moving cam and the cam action between the third cam follower portion of the operating plate and the third cam surface of the fixed cam. ..

好ましくは、上記移動カムは、上記第１カム面に連なり上記装置本体の長手方向に延びる第１保持面と、上記第２カム面に連なり上記装置本体の長手方向に延びる第２保持面とを有し、上記固定カムは、上記第３カム面に連なり上記装置本体の長手方向に延びる第３保持面と、上記第４カム面に連なり上記装置本体の長手方向に延びる第４保持面を有し、上記操作部材が上記強制開き位置にあり、上記作動板が開き状態にあるとき、上記第１カムフォロア部が上記移動カムの上記第１保持面に位置し、上記第３カムフォロア部が、上記固定カムの上記第３保持面に位置し、上記操作部材が上記強制閉じ位置にあり、上記作動板が閉じ状態にあるとき、上記第２カムフォロア部が上記移動カムの上記第２保持面に位置し、上記第４カムフォロア部が、上記固定カムの上記第４保持面に位置する。
上記構成によれば、作動板が強制閉じ状態にあるとき、作動板の第４カムフォロア部が固定カムの第４保持面に保持されているので、環境温度の変化に拘わらず作動板の強制閉じ状態をより一層確実に維持できる。また、作動板が強制開き状態にあるとき、作動板の第３カムフォロア部が固定カムの第３保持面に保持されているので、環境温度の変化に拘わらず作動板の強制開き状態をより一層確実に維持できる。 Preferably, the moving cam has a first holding surface that is connected to the first cam surface and extends in the longitudinal direction of the device main body, and a second holding surface that is connected to the second cam surface and extends in the longitudinal direction of the device main body. The fixed cam has a third holding surface which is connected to the third cam surface and extends in the longitudinal direction of the device main body, and a fourth holding surface which is connected to the fourth cam surface and extends in the longitudinal direction of the device main body. When the operating member is in the forced opening position and the operating plate is in the open state, the first cam follower portion is located on the first holding surface of the moving cam, and the third cam follower portion is the above. When the operating member is in the forced closing position and the operating plate is in the closed state, the second cam follower portion is located on the second holding surface of the moving cam. Then, the fourth cam follower portion is located on the fourth holding surface of the fixed cam.
According to the above configuration, when the operating plate is in the forced closing state, the fourth cam follower portion of the operating plate is held by the fourth holding surface of the fixed cam, so that the operating plate is forcibly closed regardless of changes in the environmental temperature. The state can be maintained even more reliably. Further, when the operating plate is in the forced open state, the third cam follower portion of the operating plate is held by the third holding surface of the fixed cam, so that the forced opening state of the operating plate is further increased regardless of the change in the environmental temperature. Can be reliably maintained.

好ましくは、上記自動制御モードにおいて、上記移動カムが上記第２方向の限界位置にあるとき、上記第２カムフォロア部は上記第２カム面の途中において上記第２保持面寄りの位置にあり、これにより、上記作動板の閉じ方向の限界位置では上記作動板が上記主壁から離れて少量の換気を許容する。 Preferably, in the automatic control mode, when the moving cam is in the limit position in the second direction, the second cam follower portion is in the middle of the second cam surface and is in a position closer to the second holding surface. As a result, the actuating plate is separated from the main wall at the limit position in the closing direction of the actuating plate to allow a small amount of ventilation.

本発明の他の態様は、換気装置において、
（ア）主壁に換気口を形成してなる細長い装置本体と、
（イ）上記装置本体の長手方向に延び、一方の縁部に、上記装置本体に回動可能かつ上記装置本体の長手方向にスライド可能に支持される軸部を有し、他方の縁部に第１、第２のカムフォロア部を有し、回動に伴い上記主壁に近づいたり離れたりして上記換気口を開閉する作動板と、
（ウ）自動制御位置と、この自動制御位置から第１方向側に離れた強制閉じ位置と、この自動制御位置から上記第１方向とは逆の第２方向側に離れた強制開き位置との間で、上記装置本体の長手方向に移動可能にして上記装置本体に支持されるとともに、上記作動板の回動を許容するようにして上記作動板に連結された操作部材と、
（エ）上記操作部材が上記自動制御位置にあるときに、環境温度に応じて上記作動板を開閉する自動制御モードを実行する温度感応型アクチュエータと、
を備え、上記温度感応型アクチュエータは、
ａ．上記装置本体の長手方向に移動可能であり、上記室内側に向かって第１方向に進むように傾斜した互いに平行をなす第１、第２のカム面を有し、上記第１方向の移動に伴い上記第１カム面が上記第１カムフォロア部と協働して上記作動板を開き方向に回動させ、上記第２方向の移動に伴い上記第２カム面が上記第２カムフォロア部と協働して上記作動板を閉じ方向に回動させる移動カムと、
ｂ．一端が上記移動カムに固定され他端が上記装置本体に固定され、上記移動カムを上記第１方向に付勢する形状記憶合金製のバネと、
ｃ．一端が上記移動カムに固定され他端が上記操作本体に固定され、上記移動カムを上記第２方向に付勢するバイアスバネと、
ｄ．上記移動カムから上記装置本体の長手方向に離れて上記装置本体に固定され、２つの保持面を有する保持部材と、
を備え、
上記作動板は、さらに２つの被保持部を有し、
上記操作部材が上記強制閉じ位置にあり、上記作動板が閉じ状態にあるとき、上記作動板の一方の被保持部が上記保持部材の一方の保持面に保持され、
上記操作部材が上記強制開き位置にあり、上記作動板が開き状態にあるとき、上記作動板の他方の被保持部が、上記保持部材の他方の保持面に保持されることを特徴とする。 Another aspect of the present invention is in a ventilator.
(A) An elongated device body with a ventilation port formed on the main wall,
(B) A shaft portion extending in the longitudinal direction of the device body and supported by the device body in a rotatable direction and slidable in the longitudinal direction of the device body is provided at one edge portion, and the other edge portion has a shaft portion. An operating plate that has first and second cam followers and opens and closes the ventilation port by approaching or moving away from the main wall as it rotates.
(C) An automatic control position, a forced closing position separated from the automatic control position in the first direction, and a forced opening position separated from the automatic control position in the second direction opposite to the first direction. An operating member connected to the operating plate so as to be movable in the longitudinal direction of the apparatus main body and supported by the apparatus main body and to allow rotation of the operating plate.
(D) A temperature-sensitive actuator that executes an automatic control mode that opens and closes the operating plate according to the environmental temperature when the operating member is in the automatic control position.
The temperature-sensitive actuator
a. It has first and second cam surfaces that are movable in the longitudinal direction of the main body of the device and are inclined so as to proceed in the first direction toward the indoor side, and are parallel to each other. Along with this, the first cam surface cooperates with the first cam follower portion to rotate the operating plate in the opening direction, and as the second cam surface moves, the second cam surface cooperates with the second cam follower portion. And a moving cam that rotates the operating plate in the closing direction,
b. A spring made of a shape memory alloy, one end of which is fixed to the moving cam and the other end of which is fixed to the device body, and which urges the moving cam in the first direction.
c. A bias spring having one end fixed to the moving cam and the other end fixed to the operating body to urge the moving cam in the second direction.
d. A holding member fixed to the device body apart from the moving cam in the longitudinal direction of the device body and having two holding surfaces,
With
The operating plate further has two held portions.
When the operating member is in the forced closing position and the operating plate is in the closed state, one held portion of the operating plate is held by one holding surface of the holding member.
When the operating member is in the forced opening position and the operating plate is in the open state, the other held portion of the operating plate is held by the other holding surface of the holding member.

上記他の態様によれば、自動制御モードから強制閉じや強制開きを実行する際に、作動板の第１、第２カムフォロア部は移動カムの第１、第２カム面に沿って移動するので、形状記憶合金製のバネやバイアスバネの抵抗が少なくて済み、操作性を高めることができる。
作動板が強制閉じ状態にあるとき、環境温度が高温になっても、上記作動板の一方の被保持部が保持部材の一方の保持面に保持されているので、作動板の強制閉じ状態を維持できる。
作動板が強制開き状態にあるとき、環境温度が低温になっても、上記作動板の他方の被保持部が保持部材の他方の保持面に保持されているので、作動板の強制開き状態を維持できる。 According to the other aspect described above, when the forced closing or the forced opening is executed from the automatic control mode, the first and second cam followers of the operating plate move along the first and second cam surfaces of the moving cam. , The resistance of shape memory alloy springs and bias springs is small, and operability can be improved.
When the operating plate is in the forced closed state, even if the environmental temperature becomes high, one of the held portions of the operating plate is held by one holding surface of the holding member, so that the forced closed state of the operating plate is maintained. Can be maintained.
When the operating plate is in the forced opening state, even if the environmental temperature becomes low, the other held portion of the operating plate is held by the other holding surface of the holding member, so that the operating plate is forced to open. Can be maintained.

本発明によれば、小さな操作力で自動換気制御から強制閉じや強制開きへの移行を実行することができる。また、強制閉じ状態および強制開き状態を確実に維持することができる。 According to the present invention, it is possible to execute the transition from automatic ventilation control to forced closing or forced opening with a small operating force. In addition, the forced closed state and the forced open state can be reliably maintained.

本発明の一実施形態に係る換気装置を室内側から見た正面図である。It is a front view which looked at the ventilation system which concerns on one Embodiment of this invention from the room side. 図１のＡ−Ａ矢視断面図であり、（Ａ）は全開状態、（Ｂ）は自動制御モードで２／３閉じ状態、（Ｃ）は全閉状態をそれぞれ示す。It is a cross-sectional view taken along the line AA of FIG. 1, in which (A) shows a fully open state, (B) shows a 2/3 closed state in an automatic control mode, and (C) shows a fully closed state. 図１のＢ−Ｂ矢視断面図であり、（Ａ）は操作つまみが自動制御位置にある状態、（Ｂ）は強制閉じ位置にある状態、（Ｃ）は強制開き位置にある状態をそれぞれ示す。It is a cross-sectional view taken along the line BB of FIG. 1, in which (A) is a state in which the operation knob is in the automatic control position, (B) is in the forced closing position, and (C) is in the forced opening position. show. 上記換気装置の作動板を室内側から見た正面図である。It is a front view which looked at the actuating plate of the ventilation system from the indoor side. 上記換気装置で用いられる温度感応型アクチュエータの斜視図であり、形状記憶バネとバイアスバネを省いて示す。It is a perspective view of the temperature sensitive actuator used in the said ventilation system, and shows by omitting a shape memory spring and a bias spring. 上記温度感応型アクチュエータの分解斜視図であり、形状記憶バネとバイアスバネを省いて示す。It is an exploded perspective view of the said temperature sensitive actuator, and shows by omitting a shape memory spring and a bias spring. 上記温度アクチュエータの平面図であり、形状記憶バネとバイアスバネを省いて示す。It is a top view of the temperature actuator, and the shape memory spring and the bias spring are omitted. 上記温度感応型アクチュエータと固定カムと作動板の突起を示す平面図であり、（Ａ）は自動制御モードで低温の時、（Ｂ）は自動制御モードで高温の時の状態をそれぞれ示す。It is a top view which shows the temperature-sensitive actuator, the fixed cam, and the protrusion of the working plate, (A) shows the state at a low temperature in an automatic control mode, and (B) shows the state at a high temperature in an automatic control mode. 図８相当図であり、（Ａ）は強制閉じで低温の時、（Ｂ）は強制閉じで高温の時の状態をそれぞれ示す。8 is a diagram corresponding to FIG. 8, in which FIG. 8A shows a state when forced closing and a low temperature, and FIG. 8B shows a state when forced closing and a high temperature. 図８相当図であり、（Ａ）は強制開きで低温の時、（Ｂ）は強制開きで高温の時の状態をそれぞれ示す。It is a figure corresponding to FIG. 8, (A) shows the state at the time of forced opening and low temperature, and (B) shows the state at the time of forced opening and high temperature. 作動板が自動制御位置から強制閉じ位置、強制開き位置へ移動する際の、移動カム及び固定カムに対する作動板の突起の移動軌跡を示す概略図であり、（Ａ）は低温時、（Ｂ）は高温時をそれぞれ示す。It is a schematic diagram which shows the movement locus of the protrusion of the operation plate with respect to a moving cam and a fixed cam when the operation plate moves from an automatic control position to a forced closing position and a forced opening position. FIG. Indicates high temperature respectively.

以下、本発明の一実施形態に係る換気装置を、図面を参照しながら説明する。本実施形態の換気装置では、室内側から見て左方向が特許請求の範囲の第１方向に相当し、右方向が第２方向に相当する。
本実施形態の換気装置は上框一体型と称されるものであり、サッシ戸の上框としての役割を有する。図１、図２（Ａ）に示すように、換気装置は、主たる構成要素として、左右方向に水平に細長く延びる装置本体１０と、同方向に細長く延びる作動板２０と、操作つまみ３０（操作部材）と、操作つまみ３０用の支持フレーム４０と、固定カム５０（保持部材）と、温度感応型アクチュエータ６０とを備えている。 Hereinafter, the ventilation device according to the embodiment of the present invention will be described with reference to the drawings. In the ventilation device of the present embodiment, the left direction when viewed from the indoor side corresponds to the first direction of the claims, and the right direction corresponds to the second direction.
The ventilation device of the present embodiment is called an upper stile integrated type, and has a role as an upper sash of the sash door. As shown in FIGS. 1 and 2 (A), the ventilation device has, as main components, a device main body 10 extending horizontally in the left-right direction, an actuator plate 20 extending in the same direction, and an operation knob 30 (operation member). ), A support frame 40 for the operation knob 30, a fixed cam 50 (holding member), and a temperature-sensitive actuator 60.

図１、図２（Ａ）に示すように、上記装置本体１０は、室内側の樹脂製押出型材１１および室外側の２本のアルミ製押出型材１２、１３を組み付けるとともに、これら型材１１〜１３の長手方向両端にキャップ１４を嵌め込むことにより構成されている。装置本体１０の下側に形成された嵌合凹部１５には、サッシ戸のガラス板（図示しない）の上縁部が嵌るようになっており、上側に形成された断面Ｕ字形のガイド部１６には、窓枠の上レール（図示しない）が収容されるようになっている。 As shown in FIGS. 1 and 2 (A), the apparatus main body 10 is assembled with a resin extruded mold material 11 on the indoor side and two aluminum extruded mold materials 12 and 13 on the outdoor side, and these mold materials 11 to 13 are assembled. It is configured by fitting caps 14 at both ends in the longitudinal direction of the. The upper edge of the glass plate (not shown) of the sash door is fitted into the fitting recess 15 formed on the lower side of the apparatus main body 10, and the guide portion 16 having a U-shaped cross section formed on the upper side. The upper rail (not shown) of the window frame is accommodated in the.

図２（Ａ）に示すように、型材１１〜１３は、垂直をなす壁１１ａ，１２ａ，１３ａをそれぞれ有している。室内側の壁１１ａの右端部には左右に延びるガイド穴（図示しない）が形成されており、それ以外の部位には多数の換気口１１ｘが左右に間隔をおいて形成されている。中間の壁１２ａ（主壁）の右端部には、左右に延びるガイド穴（図示しない）が形成されており、それ以外の部位には多数の換気口１２ｘが左右に間隔をおいて形成されている。室外側の壁１３ａには、多数の換気口１３ｘが左右に間隔をおいて形成されている。 As shown in FIG. 2A, the mold members 11 to 13 have vertical walls 11a, 12a, and 13a, respectively. A guide hole (not shown) extending to the left and right is formed at the right end of the wall 11a on the indoor side, and a large number of ventilation ports 11x are formed at intervals on the left and right in other parts. A guide hole (not shown) extending to the left and right is formed at the right end of the intermediate wall 12a (main wall), and a large number of ventilation ports 12x are formed at intervals on the left and right in other parts. There is. A large number of ventilation ports 13x are formed on the outdoor wall 13a at intervals on the left and right.

装置本体１０は、その内部に換気通路１７を有している。この換気通路１７は、壁１１ａ，１２ａの換気口１１ｘ、１２ｘを介して室内側と連通し、壁１３ａの換気口１３ｘを介して室外側と連通している。
中間の壁１２ａの上縁部の室外側には、断面円形の軸支溝１２ｙが形成されている。 The device main body 10 has a ventilation passage 17 inside. The ventilation passage 17 communicates with the indoor side through the ventilation ports 11x and 12x of the walls 11a and 12a, and communicates with the outdoor side through the ventilation ports 13x of the wall 13a.
A shaft support groove 12y having a circular cross section is formed on the outdoor side of the upper edge of the intermediate wall 12a.

作動板２０はアルミ製の押出型材からなり、図４に示すように、その下縁の室内側から見て右寄りには突起２１が形成されている。この突起２１の右端２１ａが第１カムフォロア部として提供され、左端２１ｂが第２カムフォロア部として提供される。
作動板２０の左端部の下縁の左側には、短い距離だけ離れた突起２３，２４が形成されている。左側の突起２３が第３カムフォロア部（被保持部）として提供され、右側の突起２４が第４カムフォロア部（被保持部）として提供される。 The operating plate 20 is made of an extruded aluminum material, and as shown in FIG. 4, a protrusion 21 is formed on the right side of the lower edge of the operating plate 20 when viewed from the indoor side. The right end 21a of the protrusion 21 is provided as a first cam follower portion, and the left end 21b is provided as a second cam follower portion.
On the left side of the lower edge of the left end of the operating plate 20, protrusions 23 and 24 separated by a short distance are formed. The protrusion 23 on the left side is provided as a third cam follower portion (held portion), and the protrusion 24 on the right side is provided as a fourth cam follower portion (held portion).

作動板２０の上縁部には断面円形の軸部２５が形成され、右端近傍には係合穴２６が形成されている。
作動板２０の室内側の面にはその下縁部および長手方向両端部にシール用のパッキン２７が貼り付けられている。作動板２０の室外側の面には緩衝用のパッキン２８（図２（Ａ）参照）が貼り付けられている。 A shaft portion 25 having a circular cross section is formed on the upper edge portion of the operating plate 20, and an engaging hole 26 is formed near the right end.
Sealing packings 27 are attached to the inner surface of the operating plate 20 at its lower edge and both ends in the longitudinal direction. A cushioning packing 28 (see FIG. 2A) is attached to the outdoor surface of the operating plate 20.

図２（Ａ）に示すように、作動板２０は換気通路１７内に収容されており、その軸部２５が装置本体１０の軸支溝１２ｙに挿入されることにより、作動板２０は装置本体１０に長手方向（左右方向）にスライド可能かつ回動可能に支持されている。
作動板２０が中間の壁１２ａから離れると、この壁１２ａに形成された換気口１２ｘが開放されるため、室内外の換気を行うことができる。全開状態では作動板２０のパッキン２８が装置本体１０に当たる。 As shown in FIG. 2A, the actuating plate 20 is housed in the ventilation passage 17, and the shaft portion 25 is inserted into the shaft support groove 12y of the apparatus main body 10, so that the actuating plate 20 becomes the apparatus main body. It is supported by 10 so as to be slidable and rotatable in the longitudinal direction (left-right direction).
When the operating plate 20 is separated from the intermediate wall 12a, the ventilation port 12x formed in the wall 12a is opened, so that indoor and outdoor ventilation can be performed. In the fully open state, the packing 28 of the operating plate 20 hits the apparatus main body 10.

作動板２０の傾斜量に応じて換気量が調節される。図２（Ｂ）に示すように作動板２０が壁１２ａに近づくと、換気が抑制される。さらに図２（Ｃ）に示すように作動板２０のパッキン２７が壁１２ａに接すると、壁１２ａの換気口１２ｘが閉じられ、換気通路１７は遮断状態となる。 The ventilation volume is adjusted according to the inclination amount of the operating plate 20. As shown in FIG. 2B, when the operating plate 20 approaches the wall 12a, ventilation is suppressed. Further, as shown in FIG. 2C, when the packing 27 of the operating plate 20 comes into contact with the wall 12a, the ventilation port 12x of the wall 12a is closed and the ventilation passage 17 is shut off.

図１に示すように、装置本体１０の室内側の壁１１ａの右端部の室内側には、長方形の樹脂製の支持フレーム４０が装着されており、この支持フレーム４０に、操作つまみ３０が左右方向にスライド可能に支持されている。支持フレーム４０は左右に細長い窓４１を有しており、この窓４１から操作つまみ３０の一部が露出している。 As shown in FIG. 1, a rectangular resin support frame 40 is mounted on the indoor side of the right end of the wall 11a on the indoor side of the apparatus main body 10, and the operation knobs 30 are left and right on the support frame 40. It is supported so that it can slide in the direction. The support frame 40 has elongated windows 41 on the left and right, and a part of the operation knob 30 is exposed from the windows 41.

操作つまみ３０は、樹脂製の室内側部材３１（図３（Ａ）参照）と室外側部材３２（図２（Ａ）参照）を組み付けることにより構成されている。室内側部材３１は、左右に細長く形成されており、支持フレーム４０の窓４１に挿入されて室内に突出する中央の操作凸部３１ａと、左右の翼部３１ｂと、室外側に突出する係合凸部３１ｃを有している。室外側部材３２は中空の箱形状をなし、係合凸部３１ｃに取り付けられて室外側に突出している。室外側部材３２には圧縮コイルバネが内蔵されている。 The operation knob 30 is configured by assembling a resin indoor side member 31 (see FIG. 3A) and an outdoor side member 32 (see FIG. 2A). The indoor side member 31 is formed to be elongated on the left and right sides, and is engaged with the central operating convex portion 31a which is inserted into the window 41 of the support frame 40 and projects indoors, the left and right wing portions 31b, and the outdoor side projecting. It has a convex portion 31c. The outdoor member 32 has a hollow box shape, is attached to the engaging convex portion 31c, and projects outward. A compression coil spring is built in the outdoor member 32.

操作つまみ３０は、装置本体１０の壁１１ａ，１２ａの前述したガイド穴に左右方向にスライド可能に支持されている。
操作つまみ３０の室外側部材３２が上記作動板２０の係合穴２６に入り込むことにより、操作つまみ３０と作動板２０が連結されており、作動板２０は操作つまみ３０と一緒に装置本体１０の長手方向にスライドするようになっている。なお、この連結は、作動板２０の回動を許容している。 The operation knob 30 is slidably supported in the left-right direction by the above-mentioned guide holes of the walls 11a and 12a of the apparatus main body 10.
The outdoor member 32 of the operation knob 30 is inserted into the engaging hole 26 of the operation plate 20 to connect the operation knob 30 and the operation plate 20, and the operation plate 20 is connected to the operation knob 30 together with the operation knob 30 of the apparatus main body 10. It is designed to slide in the longitudinal direction. In addition, this connection allows the operation plate 20 to rotate.

操作つまみ３０は、３つの操作位置、すなわち中央の「自動制御位置」と左寄りの「強制閉じ位置」と右寄りの「強制開き位置」との間でスライド可能であり、各位置でロックされるようになっている。このロック機能を得るために、図３に示すように、支持フレーム４０の窓４１の左右縁には室外側に突出する突起４１ａがそれぞれ形成されている。操作つまみ３０の室内側部材３１の左右の翼部３１ｂにおける室内側の面には、操作凸部３１ａの近傍に凹部３１ｘ、操作凸部３１ａから離れた位置に凹部３１ｙ、左右端に段差３１ｚが、それぞれ形成されている。 The operation knob 30 is slidable between three operation positions, that is, the central "automatic control position", the left-side "forced closing position", and the right-side "forced opening position", and is locked at each position. It has become. In order to obtain this locking function, as shown in FIG. 3, protrusions 41a projecting to the outdoor side are formed on the left and right edges of the window 41 of the support frame 40, respectively. On the indoor surface of the left and right wing portions 31b of the indoor side member 31 of the operation knob 30, a concave portion 31x is provided near the operating convex portion 31a, a concave portion 31y is provided at a position away from the operating convex portion 31a, and a step 31z is provided at the left and right ends. , Each is formed.

図３（Ａ）に示す「自動制御位置」では、操作凸部３１ａが窓４１の中央に位置し、左右一対の凹部３１ｙに窓４１の左右縁の突起４１ａが嵌っている。図３（Ｂ）に示す「強制閉じ位置」では、操作凸部３１ａが窓４１の左端部に位置し、左縁の突起４１ａが左の凹部３１ｘ嵌り、右縁の係合突起４１ａが右の段差３１ｚに係合している。図３（Ｃ）に示す「強制開き位置」では、操作凸部３１ａが窓４１の右端部に位置し、右縁の突起４１ａが右側の凹部３１ｘに嵌り、左縁の突起４１ａが左の段差３１ｚに係合している。
上記ロック状態は、室内側部材３１を室外側部材３２に内蔵されたコイルバネに抗して押すことにより解除することができる。 In the "automatic control position" shown in FIG. 3A, the operation convex portion 31a is located at the center of the window 41, and the protrusions 41a on the left and right edges of the window 41 are fitted into the pair of left and right concave portions 31y. In the "forced closing position" shown in FIG. 3B, the operation convex portion 31a is located at the left end portion of the window 41, the protrusion 41a on the left edge fits the concave recess 31x on the left, and the engaging protrusion 41a on the right edge is on the right. It is engaged with the step 31z. In the "forced opening position" shown in FIG. 3C, the operation convex portion 31a is located at the right end of the window 41, the protrusion 41a on the right edge fits into the concave portion 31x on the right side, and the protrusion 41a on the left edge is the step on the left. Engages in 31z.
The locked state can be released by pushing the indoor side member 31 against the coil spring built in the outdoor side member 32.

図１、図２（Ａ）に示すように、室内側壁部１１ａの室内側の面には、右端部以外の部位において、フィルタ４５と、このフィルタ４５を支持するフィルタ押さえ４６が装着されている。フィルタ４５は、室内側の壁１１ａに形成された換気口１１ｘを覆っている。 As shown in FIGS. 1 and 2 (A), a filter 45 and a filter retainer 46 that supports the filter 45 are mounted on the indoor side surface of the indoor side wall portion 11a at a portion other than the right end portion. .. The filter 45 covers the ventilation port 11x formed on the wall 11a on the indoor side.

装置本体１０の換気通路１７の底部には、図２（Ａ）、図８に示す固定カム５０が固定されている。この固定カム５０は、後述する移動カム７０から装置本体１０の長手方向に離れて（本実施形態では左方向に離れて）配置されている。固定カム５０は、後述の強制閉じ動作又は強制開き動作の際に、作動板２０の突起２３，２４と協働して作動板２０を閉じたり開いたりする役割と、作動板２０の全閉位置および全開位置を保持する役割を担う。 The fixed cams 50 shown in FIGS. 2 (A) and 8 are fixed to the bottom of the ventilation passage 17 of the apparatus main body 10. The fixed cam 50 is arranged away from the moving cam 70, which will be described later, in the longitudinal direction of the apparatus main body 10 (in the present embodiment, away from the left direction). The fixed cam 50 has a role of closing and opening the operating plate 20 in cooperation with the protrusions 23 and 24 of the operating plate 20 and a fully closed position of the operating plate 20 during the forced closing operation or the forced opening operation described later. And play the role of holding the fully open position.

固定カム５０はその左側にカム面５１（第３カム面）を有し，その右側にカム面５２（第４カム面）を有している。これらカム面５１，５２は互いに平行をなしており、上から見て装置本体１０の長手方向に対して傾斜している。本実施形態では室内側に向かって左方向に進むように傾斜している。さらに固定カム５０は、カム面５１の室外側の一端に連なり装置本体１０の長手方向に延びる保持面５３（第３保持面）と、カム面５２の室内側の一端に連なり装置本体１０の長手方向に延びる保持面５４（第４保持面）とを有している。固定カム５０は、後述するように自動制御モードにおいて作動板２０の突起２３、突起２４と所定の位置関係を有している。 The fixed cam 50 has a cam surface 51 (third cam surface) on the left side thereof and a cam surface 52 (fourth cam surface) on the right side thereof. These cam surfaces 51 and 52 are parallel to each other and are inclined with respect to the longitudinal direction of the apparatus main body 10 when viewed from above. In this embodiment, it is inclined so as to proceed to the left toward the indoor side. Further, the fixed cam 50 is connected to one end of the outdoor side of the cam surface 51 and is connected to a holding surface 53 (third holding surface) extending in the longitudinal direction of the device main body 10 and is connected to one end of the cam surface 52 on the indoor side and is long of the device main body 10. It has a holding surface 54 (fourth holding surface) extending in the direction. The fixed cam 50 has a predetermined positional relationship with the protrusions 23 and 24 of the operating plate 20 in the automatic control mode as described later.

図２（Ａ）に示すように、温度感応型アクチュエータ６０は、装置本体１０の右端部において換気通路１７に収容されている。図５〜図８に示すように、温度感応型アクチュエータ６０は、装置本体１０の長手方向に延びて装置本体１０に固定されたスライドガイド６１と、このスライドガイド６１の両端に固定されたバネホルダ６２，６３と、引張コイルバネからなる形状記憶バネ６５（形状記憶合金製のバネ）と、引張コイルバネからなるステンレス製のバイアスバネ６６と、移動カム７０と、を備えており、ユニット化されている。 As shown in FIG. 2A, the temperature-sensitive actuator 60 is housed in the ventilation passage 17 at the right end of the apparatus main body 10. As shown in FIGS. 5 to 8, the temperature-sensitive actuator 60 has a slide guide 61 extending in the longitudinal direction of the device main body 10 and fixed to the device main body 10, and a spring holder 62 fixed to both ends of the slide guide 61. , 63, a shape memory spring 65 (a spring made of a shape memory alloy) made of a tension coil spring, a stainless steel bias spring 66 made of a tension coil spring, and a moving cam 70, which are unitized.

スライドガイド６１は、断面Ｕ字形をなし、室内側の起立壁６１ａと室外側の起立壁６１ｂを有している。室内側の起立壁６１ａにはガイド窓６１ｃが形成されており、このガイド窓６１ｃの左縁６１ｄは第１ストッパとして提供され、右縁６１ｅ第２ストッパとして提供される。 The slide guide 61 has a U-shaped cross section, and has an upright wall 61a on the indoor side and an upright wall 61b on the outdoor side. A guide window 61c is formed on the upright wall 61a on the indoor side, and the left edge 61d of the guide window 61c is provided as a first stopper and is provided as a right edge 61e second stopper.

上記移動カム７０は、スライドガイド６１にスライド可能に支持されている。移動カム７０は、室内側から室外側に向かって順に、カム部７０ａ，係合部７０ｂ、バネホルダ部７０ｃを有している。係合部７０ｂはスライドガイド６１のガイド窓６１ｃに収容され、バネホルダ部７０ｃは、スライドガイド６１内に配置され、カム部７０ａはスライドガイド６１から室内側に突出している。 The moving cam 70 is slidably supported by the slide guide 61. The moving cam 70 has a cam portion 70a, an engaging portion 70b, and a spring holder portion 70c in this order from the indoor side to the outdoor side. The engaging portion 70b is housed in the guide window 61c of the slide guide 61, the spring holder portion 70c is arranged in the slide guide 61, and the cam portion 70a protrudes from the slide guide 61 toward the room side.

形状記憶バネ６５は移動カム７０の左側においてスライドガイド６１内に収容され、一端がバネホルダ６２に掛けられ、他端が移動カム７０のバネホルダ部７０ｃに掛けられている。バイアスバネ６６は移動カム７０の右側においてスライドガイド６１内に収容され、一端がバネホルダ６３に掛けられ、他端が移動カム７０のバネホルダ部７０ｃに掛けられている。移動カム７０は、形状記憶バネ６５とバイアスバネ６６により反対方向に付勢されている。 The shape memory spring 65 is housed in the slide guide 61 on the left side of the moving cam 70, one end of which is hung on the spring holder 62, and the other end of which is hung on the spring holder portion 70c of the moving cam 70. The bias spring 66 is housed in the slide guide 61 on the right side of the moving cam 70, one end of which is hung on the spring holder 63, and the other end of which is hung on the spring holder portion 70c of the moving cam 70. The moving cam 70 is urged in opposite directions by the shape memory spring 65 and the bias spring 66.

上記形状記憶バネ６５は、温度が上昇するにしたがって、自然長が減少する特性、換言すれば引張り弾性力がほぼリニアに増大する特性を有している。したがって、温度感応型アクチュエータ６０において、移動カム７０は温度環境に応じて両バネ６５，６６の弾性力が均衡する位置になるように制御される。 The shape memory spring 65 has a characteristic that the natural length decreases as the temperature rises, in other words, a characteristic that the tensile elastic force increases substantially linearly. Therefore, in the temperature-sensitive actuator 60, the moving cam 70 is controlled so that the elastic forces of both springs 65 and 66 are in equilibrium according to the temperature environment.

移動カム７０の係合部７０ｂはガイド窓６１ｃ内で装置本体１０の長手方向に所定ストロークにわたって移動可能であり、左右の縁６１ｄ、６１ｅに当たることによりその移動を制限されている。 The engaging portion 70b of the moving cam 70 can move in the guide window 61c in the longitudinal direction of the apparatus main body 10 over a predetermined stroke, and its movement is restricted by hitting the left and right edges 61d and 61e.

移動カム７０はカム溝７１を有している。このカム溝７１の両側面が互いに平行なカム面７５，７６として提供される。カム面７５，７６は、上から見て装置本体１０の長手方向に対して傾斜している。本実施形態では室内側に向かって左方向に進むように傾斜しており、その傾斜角は固定カム５０のカム面５１，５２の傾斜角と実質的に等しい。 The moving cam 70 has a cam groove 71. Both side surfaces of the cam groove 71 are provided as cam surfaces 75 and 76 parallel to each other. The cam surfaces 75 and 76 are inclined with respect to the longitudinal direction of the apparatus main body 10 when viewed from above. In the present embodiment, it is inclined so as to proceed to the left toward the indoor side, and the inclination angle thereof is substantially equal to the inclination angles of the cam surfaces 51 and 52 of the fixed cam 50.

移動カム７０は、右側のカム面７５（第１カム面）の室外側の端に連なり装置本体１０の長手方向に延びる保持面７７（第１保持面）と、左側のカム面７６の室内側の端に連なり装置本体１０の長手方向に延びる保持面７８（第２保持面）とを有している。 The moving cam 70 has a holding surface 77 (first holding surface) that is connected to the outdoor end of the right cam surface 75 (first cam surface) and extends in the longitudinal direction of the apparatus main body 10, and the indoor side of the left cam surface 76. It has a holding surface 78 (second holding surface) which is connected to the end of the device and extends in the longitudinal direction of the apparatus main body 10.

上記構成において、まず自動換気制御モードについて説明する。この自動換気制御モードは、操作つまみ３０を図３（Ａ）に示す自動制御位置にすることにより実行される。作動板２０の長手方向の位置は操作つまみ３０の位置により決定され、図８（Ａ）、（Ｂ）に示すように、作動板２０の突起２３と突起２４との間に固定カム５０が位置している。換言すると、作動板２０がスライドせずに回動する際に、作動板２０は固定カム５０の干渉を受けない。 In the above configuration, the automatic ventilation control mode will be described first. This automatic ventilation control mode is executed by setting the operation knob 30 to the automatic control position shown in FIG. 3A. The position of the operating plate 20 in the longitudinal direction is determined by the position of the operation knob 30, and as shown in FIGS. 8A and 8B, the fixed cam 50 is located between the protrusions 23 and 24 of the operating plate 20. doing. In other words, when the actuating plate 20 rotates without sliding, the actuating plate 20 is not interfered with by the fixed cam 50.

自動制御モードでは、移動カム７０の位置が形状記憶バネ６５とバイアスバネ６６の弾性力の釣り合いにより決定され、この移動カム７０のカム溝７１と作動板２０の突起２１とのカム作用により作動板２０の開度が決定される。 In the automatic control mode, the position of the moving cam 70 is determined by the balance of the elastic forces of the shape memory spring 65 and the bias spring 66, and the cam action of the cam groove 71 of the moving cam 70 and the protrusion 21 of the operating plate 20 causes the operating plate. The opening degree of 20 is determined.

温度が低下すると、形状記憶バネ６５の弾性力が弱まるので、バイアスバネ６６の力により移動カム７０は室内側から見て右方向に移動し、作動板２０の突起２１と移動カム７０のカム溝７１とのカム作用（厳密には、突起２１の左端２１ｂとカム面７６とのカム作用）により、作動板２０が回動して壁１２ａに近づき開度が減少する。温度がさらに低下して低温側設定温度（本実施形態では７°Ｃ）に達すると、図８（Ａ）に示すように作動板２０の突起２１がカム溝７１の室内側の端に近づき、作動板２０が図２（Ｂ）に示す閉じ状態となる。自動換気制御モードでの閉じでは、第１突起２１がカム溝７１の室内側の端に到達せず（突起２１の左端２１ｂがカム面７６の途中の位置にあり）、作動板２０は完全な閉じではなく１／３程度開いており（換言すれば２／３閉じ）、少量の換気が可能な状態である。 When the temperature drops, the elastic force of the shape memory spring 65 weakens, so the moving cam 70 moves to the right when viewed from the indoor side due to the force of the bias spring 66, and the protrusion 21 of the operating plate 20 and the cam groove of the moving cam 70 Due to the cam action with 71 (strictly speaking, the cam action between the left end 21b of the protrusion 21 and the cam surface 76), the operating plate 20 rotates and approaches the wall 12a, and the opening degree is reduced. When the temperature further decreases and reaches the set temperature on the low temperature side (7 ° C in this embodiment), the protrusion 21 of the operating plate 20 approaches the indoor end of the cam groove 71 as shown in FIG. 8 (A). The operating plate 20 is in the closed state shown in FIG. 2 (B). When closed in the automatic ventilation control mode, the first protrusion 21 does not reach the indoor end of the cam groove 71 (the left end 21b of the protrusion 21 is in the middle of the cam surface 76), and the operating plate 20 is complete. It is not closed but about 1/3 open (in other words, 2/3 closed), and a small amount of ventilation is possible.

図８（Ａ）に示すように、環境温度が低温側設定温度に達した時、移動カム７０の係合部７０ｂがスライドガイド６１のガイド窓６１ｃの右縁６１ｅ（図６参照）に当たるため、環境温度がさらに低下しても、移動カム７０はそれ以上右方向への移動するのを阻止される。換言すればバイアスバネ６６がそれ以上縮むのを阻止される。その結果、作動板２０は上記２／３閉じの状態を維持される。 As shown in FIG. 8A, when the environmental temperature reaches the set temperature on the low temperature side, the engaging portion 70b of the moving cam 70 hits the right edge 61e (see FIG. 6) of the guide window 61c of the slide guide 61. Even if the ambient temperature drops further, the moving cam 70 is prevented from moving further to the right. In other words, the bias spring 66 is prevented from further contracting. As a result, the operating plate 20 is maintained in the above 2/3 closed state.

環境温度が高くなると、形状記憶バネ６５の弾性力が強まるので、図８（Ｂ）に示すように、移動カム７０は室内側から見て左方向に移動し、作動板２０の突起２１と移動カム７０のカム溝７１とのカム作用（厳密には、突起２１の右端２１ａとカム面７５とのカム作用）により、作動板２０が壁１２ａから離れる方向に回動して作動板２０の開度が増大する。環境温度がさらに上昇して高温側設定温度（本実施形態では１３°Ｃ）に達すると、図８（Ｂ）に示すように作動板２０の突起２１がカム溝７１の室外側の端に至り、作動板２０が図２（Ａ）に示す全開状態となる。 As the ambient temperature rises, the elastic force of the shape memory spring 65 increases. Therefore, as shown in FIG. 8B, the moving cam 70 moves to the left when viewed from the indoor side, and moves with the protrusion 21 of the operating plate 20. Due to the cam action of the cam 70 with the cam groove 71 (strictly speaking, the cam action of the right end 21a of the protrusion 21 and the cam surface 75), the actuating plate 20 rotates in a direction away from the wall 12a to open the actuating plate 20. The degree increases. When the environmental temperature further rises and reaches the high temperature side set temperature (13 ° C in this embodiment), the protrusion 21 of the operating plate 20 reaches the outdoor end of the cam groove 71 as shown in FIG. 8 (B). , The operating plate 20 is in the fully open state shown in FIG. 2 (A).

図８（Ｂ）に示すように、環境温度が高温側設定温度に達して突起２１がカム溝７１の室外側の端に達した時、移動カム７０の係合部７０ｂがスライドガイド６１のガイド窓６１ｃの左縁６１ｄ（図６参照）に当たるため、環境温度がさらに上昇しても、移動カム７０はそれ以上左方向への移動するのを阻止される。換言すれば、形状記憶バネ６５がそれ以上縮むのを阻止される。その結果、突起２１は、カム溝７１の室外側の端に位置した状態を維持される。 As shown in FIG. 8B, when the environmental temperature reaches the set temperature on the high temperature side and the protrusion 21 reaches the outdoor end of the cam groove 71, the engaging portion 70b of the moving cam 70 guides the slide guide 61. Since it hits the left edge 61d (see FIG. 6) of the window 61c, the moving cam 70 is prevented from moving further to the left even if the environmental temperature rises further. In other words, the shape memory spring 65 is prevented from further contracting. As a result, the protrusion 21 is maintained in a state of being located at the outdoor end of the cam groove 71.

環境温度が高温側設定温度と低温側設定温度との間にある時には、形状記憶バネ６５の弾性力がほぼリニアに変化するため、移動カム７０のカム溝７１と突起２１とのカム作用により、環境温度に応じて作動板２０の開度が調節される。上記自動換気制御での作動板２０の環境温度に対応した開度調節は、作動板２０の装置本体１０長手方向へのスライドを伴わないので、バネ６５，６６の負担は軽くて済み、バネ６５，６６の小型化を図ることができる。 When the ambient temperature is between the high temperature side set temperature and the low temperature side set temperature, the elastic force of the shape memory spring 65 changes almost linearly, so that the cam action between the cam groove 71 and the protrusion 21 of the moving cam 70 causes the cam action. The opening degree of the operating plate 20 is adjusted according to the ambient temperature. Since the opening adjustment of the operating plate 20 corresponding to the environmental temperature in the automatic ventilation control does not involve sliding of the operating plate 20 in the longitudinal direction of the device body 10, the load on the springs 65 and 66 can be lightened, and the spring 65. , 66 can be miniaturized.

暴風雨の際には、環境温度とは無関係に作動板２０を全閉状態にすることが要求される。この場合、操作つまみ３０の自動制御位置でのロック状態を外し、図３（Ｂ）に示すように、操作つまみ３０を室内側から見て左方向に移動させ、強制閉じ位置にする。この強制閉じ操作の過程で、操作つまみ３０に追随して作動板２０が左方向に移動する。
作動板２０が左方向に移動すると、作動板２０の突起２１と移動カム７０のカム溝７１とのカム作用、および作動板２０の突起２４と固定カム５０のカム面５２とのカム作用により、作動板２０が壁１２ａに向かって回動し、図２（Ｃ）の全閉状態になる。この強制閉じ操作において、作動板２０の突起２１はカム溝７１に沿って移動するので、形状記憶バネ６５やバイアスバネ６６の抵抗を殆ど受けない。強制閉じ操作時のカム作用の詳細については後述する。 In the event of a storm, the operating plate 20 is required to be fully closed regardless of the environmental temperature. In this case, the locked state of the operation knob 30 at the automatic control position is released, and as shown in FIG. 3B, the operation knob 30 is moved to the left when viewed from the indoor side to be in the forced closing position. In the process of this forced closing operation, the operating plate 20 moves to the left following the operation knob 30.
When the actuating plate 20 moves to the left, the cam action of the protrusion 21 of the actuating plate 20 and the cam groove 71 of the moving cam 70 and the cam action of the protrusion 24 of the actuating plate 20 and the cam surface 52 of the fixed cam 50 cause the cam action. The operating plate 20 rotates toward the wall 12a, and is in the fully closed state shown in FIG. 2C. In this forced closing operation, the protrusion 21 of the operating plate 20 moves along the cam groove 71, and therefore receives almost no resistance from the shape memory spring 65 or the bias spring 66. The details of the cam action during the forced closing operation will be described later.

操作つまみ３０が強制閉じ位置に達すると、図９に示すように作動板２０の突起２１が移動カム７０のカム面７６を超えて保持面７８に至り、突起２４が固定カム５０のカム面５２を越えて保持面５４に至るので、強風でも安定して作動板２０の閉じ状態を維持できる。 When the operation knob 30 reaches the forced closing position, as shown in FIG. 9, the protrusion 21 of the operating plate 20 exceeds the cam surface 76 of the moving cam 70 to reach the holding surface 78, and the protrusion 24 reaches the cam surface 52 of the fixed cam 50. Since it reaches the holding surface 54 beyond the above, the closed state of the operating plate 20 can be stably maintained even in a strong wind.

なお、作動板２０の強制閉じ位置にあっても、移動カム７０は、ガイド窓７１ｃの両側縁７１ｄ、７１ｅで決められた移動ストロークの範囲で移動可能である。低温設定温度以下の場合、すなわち移動カム７０が右方向への限界位置にある時には、図９（Ａ）に示すように、作動板２０の突起２１は移動カム７０の保持面７８の左端部に位置している。高温設定温度以上の場合、すなわち移動カム７０が左方向への限界位置にある時には、図９（Ｂ）に示すように、作動板２０の突起２１は移動カム７０の保持面７８の右端部に位置している。 Even in the forced closing position of the operating plate 20, the moving cam 70 can move within the range of the moving stroke determined by the side edges 71d and 71e of the guide window 71c. When the temperature is below the low temperature set temperature, that is, when the moving cam 70 is in the limit position to the right, the protrusion 21 of the operating plate 20 is located at the left end of the holding surface 78 of the moving cam 70, as shown in FIG. 9 (A). positioned. When the temperature is higher than the high temperature set temperature, that is, when the moving cam 70 is in the limit position to the left, the protrusion 21 of the operating plate 20 is located at the right end of the holding surface 78 of the moving cam 70, as shown in FIG. 9B. positioned.

上記作動板２０が強制閉じ位置にある時、移動カム７０は図９（Ｂ）に示す限界位置より左方向に移動せず、したがって、移動カム７０のカム面７５と作動板２０の突起２１とのカム作用により作動板２０が開き方向の力を受けることはない。しかも、図９（Ｂ）に示すように作動板２０の突起２４が固定カム５０の保持面５４に保持されているので、作動板２０が開き方向に回動することはない。 When the operating plate 20 is in the forced closing position, the moving cam 70 does not move to the left from the limit position shown in FIG. 9B, and therefore the cam surface 75 of the moving cam 70 and the protrusion 21 of the operating plate 20 The actuating plate 20 is not subjected to a force in the opening direction due to the cam action of the above. Moreover, as shown in FIG. 9B, since the protrusion 24 of the operating plate 20 is held by the holding surface 54 of the fixed cam 50, the operating plate 20 does not rotate in the opening direction.

環境温度と無関係に室内を換気する場合には、操作つまみ３０を室内側から見て右方向に移動させ、図３（Ｃ）の強制開き位置にする。この強制開き操作の過程で、操作つまみ３０に追随して作動板２０が右方向に移動する。
作動板２０が右方向に移動すると、作動板２０の突起２１と移動カム７０のカム溝７１とのカム作用および作動板２０の突起２３と固定カム５０のカム面５３とのカム作用により、作動板２０が壁１２ａから離れる方向に回動し、図２（Ａ）の全開状態になる。この強制開き操作において、作動板２０の突起２１はカム溝７１に沿って移動するので、形状記憶バネ６５やバイアスバネ６６の抵抗を殆ど受けない。強制開き操作時のカム作用の詳細については後述する。 When the room is ventilated regardless of the environmental temperature, the operation knob 30 is moved to the right when viewed from the room side to the forced opening position shown in FIG. 3C. In the process of this forced opening operation, the operating plate 20 moves to the right following the operation knob 30.
When the actuating plate 20 moves to the right, it is actuated by the cam action of the protrusion 21 of the actuating plate 20 and the cam groove 71 of the moving cam 70 and the cam action of the protrusion 23 of the actuating plate 20 and the cam surface 53 of the fixed cam 50. The plate 20 rotates in the direction away from the wall 12a, and is in the fully opened state shown in FIG. 2 (A). In this forced opening operation, the protrusion 21 of the operating plate 20 moves along the cam groove 71, and therefore receives almost no resistance from the shape memory spring 65 or the bias spring 66. The details of the cam action during the forced opening operation will be described later.

操作つまみ３０が強制開き位置に達すると、図１０に示すように作動板２０の突起２１が移動カム７０のカム面７５を超えて保持面７７に至り、作動板２０の突起２３が固定カム５０のカム面５１を越えて保持面５３に至るので、安定して作動板２０の全開状態を維持できる。 When the operation knob 30 reaches the forced opening position, as shown in FIG. 10, the protrusion 21 of the operating plate 20 exceeds the cam surface 75 of the moving cam 70 to reach the holding surface 77, and the protrusion 23 of the operating plate 20 reaches the fixed cam 50. Since it reaches the holding surface 53 beyond the cam surface 51 of the above, the fully open state of the operating plate 20 can be stably maintained.

なお、作動板２０が強制開き位置にあっても、移動カム７０は上述の所定ストロークの範囲で移動可能である。低い温設定温度以下の場合、すなわち移動カム７０が右方向への限界位置にある時には、図１０（Ａ）に示すように、作動板２０の突起２１は移動カム７０の保持面７７の左端部に位置している。高温設定温度以上の場合、すなわち移動カム７０が左方向への限界位置にある時には、図１０（Ｂ）に示すように、作動板２０の突起２１は移動カム７０の保持面７７の右端部に位置している。 Even if the operating plate 20 is in the forced opening position, the moving cam 70 can move within the above-mentioned predetermined stroke range. When the temperature is set below a low temperature, that is, when the moving cam 70 is in the limit position to the right, the protrusion 21 of the operating plate 20 is the left end portion of the holding surface 77 of the moving cam 70, as shown in FIG. 10 (A). Is located in. When the temperature is higher than the high temperature set temperature, that is, when the moving cam 70 is in the limit position to the left, the protrusion 21 of the operating plate 20 is located at the right end of the holding surface 77 of the moving cam 70, as shown in FIG. 10 (B). positioned.

上記作動板２０が強制開き位置にある時、移動カム７０は図１０（Ａ）に示す限界位置より右方向に移動せず、したがって、移動カム７０のカム面７６と作動板２０の突起２１とのカム作用により作動板２０が閉じ方向の力を受けることはない。しかも、図１０（Ａ）に示すように作動板２０の突起２３が固定カム５０の保持面５３に保持されているので、作動板２０が閉じ方向に回動することはない。 When the operating plate 20 is in the forced opening position, the moving cam 70 does not move to the right from the limit position shown in FIG. 10 (A), and therefore, the cam surface 76 of the moving cam 70 and the protrusion 21 of the operating plate 20 The actuating plate 20 is not subjected to a force in the closing direction due to the cam action of the above. Moreover, as shown in FIG. 10A, the protrusion 23 of the operating plate 20 is held by the holding surface 53 of the fixed cam 50, so that the operating plate 20 does not rotate in the closing direction.

以下、環境温度毎に場合分けして、自動制御モードからの強制閉じ操作時および強制開き操作時における移動カム７０と固定カム５０のカム作用について、主に図１１（Ａ）、（Ｂ）を参照しながら、詳述する。図１１（Ａ）、（Ｂ）において、作動板２０の突起２１，２３，２４は３つの位置で示されている。自動制御の位置での突起２１，２３，２４に符号（Ｘ）を付し、強制閉じの位置での突起２１，２３，２４に符号（Ｙ）を付し、強制開きの位置での突起２１，２３，２４に符号（Ｚ）を付す。 Hereinafter, the cam actions of the moving cam 70 and the fixed cam 50 during the forced closing operation and the forced opening operation from the automatic control mode are mainly shown in FIGS. 11 (A) and 11 (B). It will be described in detail with reference to it. In FIGS. 11A and 11B, the protrusions 21, 23, 24 of the operating plate 20 are shown at three positions. The protrusions 21, 23, 24 at the automatic control position are marked with a symbol (X), the protrusions 21, 23, 24 at the forced closing position are marked with a symbol (Y), and the protrusions 21 at the forced opening position are designated. , 23, 24 are coded (Z).

最初に、環境温度が低温設定温度以下の場合について図１１（Ａ）を参照しながら説明する。自動制御モードでは作動板２０の突起２１は符号２１（Ｘ）で示すようにカム溝７１の途中において室内側寄りに位置している。この状態で作動板２０を左方向の強制閉じ位置に移動させると、突起２１とカム溝７１のカム作用により（より具体的には突起２１の左端２１ｂとカム面７６のカム作用により）、作動板２０は壁１２ａに対して斜めに移動しながら近づき全閉となる。移動カム７０が左方向の限界位置にあるため、突起２１がカム面７６を左方向に押しても移動することがなく、カム作用を安定して行なうことができる。 First, a case where the environmental temperature is equal to or lower than the low temperature set temperature will be described with reference to FIG. 11 (A). In the automatic control mode, the protrusion 21 of the operating plate 20 is located closer to the indoor side in the middle of the cam groove 71 as shown by reference numeral 21 (X). When the operating plate 20 is moved to the forced closing position in the left direction in this state, it is activated by the cam action of the protrusion 21 and the cam groove 71 (more specifically, by the cam action of the left end 21b of the protrusion 21 and the cam surface 76). The plate 20 approaches the wall 12a while moving diagonally and is fully closed. Since the moving cam 70 is at the limit position in the left direction, the protrusion 21 does not move even if the cam surface 76 is pushed to the left, and the cam action can be stably performed.

作動板２０がさらに強制閉じ位置に向かって左方向に移動すると、突起２１は保持面７８に沿って移動し、符号２１（Ｙ）に示すように保持面７８の左端部に至る。
図１１（Ａ）に示すように、低温設定温度以下での自動制御モードでは、作動板２０の突起２４は符号２４（Ｘ）で示すようにカム面５２から離れた位置にあり、上記強制閉じ操作の過程で、作動板２０の突起２４は固定カム５０のカム面５２に接することなく斜めに移動した後で左方向に直線的に移動することにより、符号２４（Ｙ）で示すように保持面５４に至る。 When the operating plate 20 further moves to the left toward the forced closing position, the protrusion 21 moves along the holding surface 78 and reaches the left end portion of the holding surface 78 as shown by reference numeral 21 (Y).
As shown in FIG. 11 (A), in the automatic control mode below the low temperature set temperature, the protrusion 24 of the operating plate 20 is located at a position away from the cam surface 52 as shown by reference numeral 24 (X), and is forcibly closed. In the process of operation, the protrusion 24 of the operating plate 20 is held as shown by reference numeral 24 (Y) by moving diagonally to the left without touching the cam surface 52 of the fixed cam 50 and then moving linearly to the left. It reaches the surface 54.

低温設定温度以下での自動制御では、図１１（Ａ）に示すように、作動板２０の突起２３は符号２３（Ｘ）で示すように固定カム５０のカム面５１に近接した位置にある。同様に、突起２１の右端２１ａも移動カム７０のカム面７５に近接した位置にある。そのため、作動板２０を自動制御位置から右方向の強制開き位置に移動させると、突起２３とカム面５１のカム作用、および突起２１とカム面７５のカム作用により、作動板２０は壁１２ａに対して斜めに移動しながら離れて全開となる。
作動板２０がさらに強制開き位置に向かって右方向に移動すると、突起２３が符号２３（Ｚ）で示すように保持面５３に至り、突起２１が符号２１（Ｚ）で示すように保持面７７の左端部に至る。 In automatic control at a low temperature set temperature or lower, as shown in FIG. 11A, the protrusion 23 of the operating plate 20 is located close to the cam surface 51 of the fixed cam 50 as shown by reference numeral 23 (X). Similarly, the right end 21a of the protrusion 21 is also located close to the cam surface 75 of the moving cam 70. Therefore, when the operating plate 20 is moved from the automatic control position to the forced opening position in the right direction, the operating plate 20 is moved to the wall 12a by the cam action of the protrusion 23 and the cam surface 51 and the cam action of the protrusion 21 and the cam surface 75. On the other hand, it moves diagonally and separates to fully open.
When the operating plate 20 further moves to the right toward the forced opening position, the protrusion 23 reaches the holding surface 53 as shown by reference numeral 23 (Z), and the protrusion 21 reaches the holding surface 77 as shown by reference numeral 21 (Z). To the left end of.

次に、環境温度が、高温設定温度以上の場合について図１１（Ｂ）を参照しながら説明する。自動制御モードでは作動板２０の突起２１は符号２１（Ｘ）で示すようにカム溝７１の室外側の端に位置している。突起２４は符号２４（Ｘ）で示すように固定カム５０のカム面５２に近接した位置にある。同様に突起２１の左端２１ｂもカム面７６に近接した位置にある。そのため、作動板２０を自動制御位置から左方向の強制閉じ位置に移動させると、突起２４とカム面５２のカム作用、および突起２１とカム面７６のカム作用により、作動板２０は壁１２ａに対して斜めに移動しながら近づいて全閉となる。
作動板２０がさらに強制閉じ位置に向かって左方向に移動すると、突起２４が符号２４（Ｙ）で示すように保持面５４に至り、突起２１が符号２１（Ｙ）で示すように保持面７８の右端部に至る。 Next, a case where the environmental temperature is equal to or higher than the high temperature set temperature will be described with reference to FIG. 11 (B). In the automatic control mode, the protrusion 21 of the operating plate 20 is located at the outdoor end of the cam groove 71 as indicated by reference numeral 21 (X). The protrusion 24 is located close to the cam surface 52 of the fixed cam 50 as indicated by reference numeral 24 (X). Similarly, the left end 21b of the protrusion 21 is also located close to the cam surface 76. Therefore, when the operating plate 20 is moved from the automatic control position to the forced closing position in the left direction, the operating plate 20 is moved to the wall 12a by the cam action of the protrusion 24 and the cam surface 52 and the cam action of the protrusion 21 and the cam surface 76. On the other hand, it moves diagonally and approaches and becomes fully closed.
When the operating plate 20 further moves to the left toward the forced closing position, the protrusion 24 reaches the holding surface 54 as indicated by reference numeral 24 (Y), and the protrusion 21 reaches the holding surface 78 as shown by reference numeral 21 (Y). To the right end of.

自動制御位置から作動板２０を右方向の強制開き位置に移動させると、突起２１はそのまま右方向に直線的に移動し、符号２１（Ｚ）で示すように保持面７７の右端部に至る。低温設定温度以下で自動制御モードを実行している時には、作動板２０の突起２３は符号２３（Ｘ）で示すようにカム面５１から離れた位置にある。そのため、上記強制開き操作により、作動板２０の突起は右方向に直線的に移動することにより、符号２３（Ｚ）で示すように保持面５３に至る。 When the operating plate 20 is moved from the automatic control position to the forced opening position in the right direction, the protrusion 21 moves linearly in the right direction as it is, and reaches the right end portion of the holding surface 77 as indicated by reference numeral 21 (Z). When the automatic control mode is executed at a low temperature set temperature or lower, the protrusion 23 of the operating plate 20 is located away from the cam surface 51 as indicated by reference numeral 23 (X). Therefore, by the forced opening operation, the protrusion of the operating plate 20 linearly moves to the right to reach the holding surface 53 as shown by reference numeral 23 (Z).

環境温度が低温設定温度と高温設定温度との間にある場合には、自動制御モードにおいて作動板２０の突起２１はカム溝７１内において、図１１（Ａ）に符号２１（Ｘ）で示す位置と図１１（Ｂ）において符号２１（Ｘ）で示す位置との間にある。この場合に、強制閉じ操作または強制開き操作を行うと、移動カム７０のカム溝７１と作動板２０の突起２１のカム作用だけで作動板２０の開閉が行なわれる。 When the environmental temperature is between the low temperature set temperature and the high temperature set temperature, the protrusion 21 of the operating plate 20 is located in the cam groove 71 in the automatic control mode at the position indicated by reference numeral 21 (X) in FIG. 11 (A). It is between the temperature and the position indicated by reference numeral 21 (X) in FIG. 11 (B). In this case, when the forced closing operation or the forced opening operation is performed, the operating plate 20 is opened and closed only by the cam action of the cam groove 71 of the moving cam 70 and the protrusion 21 of the operating plate 20.

上記実施形態において、自動制御モードでの低温設定温度以下のときに、作動板２０を全閉にしてもよい。この場合、作動板２０の突起２１はカム溝７１の室内側の端に至る。 In the above embodiment, the operating plate 20 may be fully closed when the temperature is below the low temperature set temperature in the automatic control mode. In this case, the protrusion 21 of the operating plate 20 reaches the end of the cam groove 71 on the indoor side.

上記実施形態において、装置本体１０が長い場合には、固定カム５０を装置長手方向に間隔をおいて複数設置してもよい。
装置本体１０が短い場合には固定カム５０を省いてもよい。この場合、第１、第２ストッパ（上記実施形態におけるガイド溝６１ｃの左右の縁）が、移動カム７０のカム作用による作動板２０の回動を禁じることにより、作動板２０の強制閉じ状態、強制開き状態を維持する。 In the above embodiment, when the device main body 10 is long, a plurality of fixed cams 50 may be installed at intervals in the longitudinal direction of the device.
If the device body 10 is short, the fixed cam 50 may be omitted. In this case, the first and second stoppers (the left and right edges of the guide groove 61c in the above embodiment) prohibit the rotation of the operating plate 20 due to the cam action of the moving cam 70, so that the operating plate 20 is forcibly closed. Maintain the forced open state.

上記実施形態において、第１、第２のストッパを省いてもよい。この場合、固定カム５０（保持部材）の第３保持面５３、第４保持面５４が作動板２０の突起２３，２４（被保持部）を保持することにより、作動板２０の強制閉じ状態、強制開き状態を維持する。この場合、自動制御モードでの閉じを、全閉とするのが好ましい。 In the above embodiment, the first and second stoppers may be omitted. In this case, the third holding surface 53 and the fourth holding surface 54 of the fixed cam 50 (holding member) hold the protrusions 23 and 24 (held portion) of the operating plate 20, so that the operating plate 20 is forcibly closed. Maintain the forced open state. In this case, it is preferable that the closing in the automatic control mode is fully closed.

本発明は上記実施形態に制約されず種々の態様が可能である。
形状記憶バネ，バイアスバネとして、引張コイルバネを用いたが、圧縮コイルバネを用いてもよい。この場合、第１実施形態において形状記憶バネ，バイアスバネの配置を左右逆にする。
本発明の換気装置はサッシ戸の上框と別体をなし上框の下に装着するようにしてもよいし、サッシ戸以外の場所に設置してもよい。 The present invention is not limited to the above embodiment, and various aspects are possible.
A tension coil spring is used as the shape memory spring and a bias spring, but a compression coil spring may also be used. In this case, the arrangement of the shape memory spring and the bias spring is reversed left and right in the first embodiment.
The ventilation device of the present invention may be installed under the upper sash separately from the upper sash of the sash door, or may be installed in a place other than the sash door.

本発明は、環境温度に応じて自動的に開閉制御する換気装置に適用することができる。 The present invention can be applied to a ventilation device that automatically controls opening and closing according to the environmental temperature.

１０ 装置本体
１２ａ 中間の壁（主壁）
１２ｘ 換気口
２０ 作動板
２１ 突起
２１ａ 突起の右端（第１カムフォロア部）
２１ｂ 突起の左端（第２カムフォロア部）
２３ 突起（第３カムフォロア部、被保持部）
２４ 突起（第４カムフォロア部、被保持部）
３０ 操作つまみ（操作部材）
５０ 固定カム（保持部材）
５１ 第３カム面
５２ 第４カム面
５３ 第３保持面（保持面）
５４ 第４保持面（保持面）
６０ 温度感応型アクチュエータ
６１ スライドガイド
６１ｃ ガイド窓
６１ｄ ガイド窓の左縁（第１ストッパ）
６１ｅ ガイド窓の右縁（第２ストッパ）
６５ 形状記憶バネ（形状記憶合金製のバネ）
６６ バイアスバネ
７０ 移動カム
７１ カム溝
７５ 第１カム面
７６ 第２カム面
７７ 第１保持面
７８ 第２保持面 10 Device body 12a Intermediate wall (main wall)
12x Ventilation port 20 Acting plate 21 Protrusion 21a Right end of protrusion (1st cam follower part)
21b Left end of protrusion (second cam follower)
23 protrusions (third cam follower part, held part)
24 protrusions (4th cam follower part, held part)
30 Operation knob (operation member)
50 Fixed cam (holding member)
51 3rd cam surface 52 4th cam surface 53 3rd holding surface (holding surface)
54 Fourth holding surface (holding surface)
60 Temperature-sensitive actuator 61 Slide guide 61c Guide window 61d Left edge of guide window (first stopper)
61e Right edge of guide window (second stopper)
65 Shape memory spring (spring made of shape memory alloy)
66 Bias spring 70 Moving cam 71 Cam groove 75 1st cam surface 76 2nd cam surface 77 1st holding surface 78 2nd holding surface

Claims (5)

（ア）主壁に換気口を形成してなる細長い装置本体と、
（イ）上記装置本体の長手方向に延び、一方の縁部に、上記装置本体に回動可能かつ上記装置本体の長手方向にスライド可能に支持される軸部を有し、他方の縁部に第１、第２カムフォロア部を有し、回動に伴い上記主壁に近づいたり離れたりして上記換気口を開閉する作動板と、
（ウ）自動制御位置と、この自動制御位置から第１方向側に離れた強制閉じ位置と、この自動制御位置から上記第１方向とは逆の第２方向側に離れた強制開き位置との間で、上記装置本体の長手方向に移動可能にして上記装置本体に支持されるとともに、上記作動板の回動を許容するようにして上記作動板に連結された操作部材と、
（エ）上記操作部材が上記自動制御位置にあるときに、環境温度に応じて上記作動板を開閉する自動制御モードを実行する温度感応型アクチュエータと、
を備え、上記温度感応型アクチュエータは、
ａ．上記装置本体の長手方向に移動可能であり、上記室内側に向かって第１方向に進むように傾斜した互いに平行をなす第１、第２カム面を有し、上記第１方向の移動に伴い上記第１カム面が上記第１カムフォロア部と協働して上記作動板を開き方向に回動させ、上記第２方向の移動に伴い上記第２カム面が上記第２カムフォロア部と協働して上記作動板を閉じ方向に回動させる移動カムと、
ｂ．一端が上記移動カムに固定され他端が上記装置本体に固定され、上記移動カムを上記第１方向に付勢する形状記憶合金製のバネと、
ｃ．一端が上記移動カムに固定され他端が上記操作本体に固定され、上記移動カムを上記第２方向に付勢するバイアスバネと、
ｄ．上記装置本体に固定され、上記移動カムの上記第１方向への移動を規制することにより、上記自動制御モードでの上記作動板の開き方向の限界位置を決定する第１ストッパと、
ｅ．上記装置本体に固定され、上記移動カムの上記第２方向への移動を規制することにより、上記自動制御モードでの上記作動板の閉じ方向の限界位置を決定する第２ストッパと、
を備え、
上記作動板は、さらに第３、第４カムフォロア部を有し、
上記装置本体には、上記移動カムから上記装置本体の長手方向に離れた位置において、固定カムが固定されており、
上記固定カムは、上記移動カムの上記第１、第２カム面と平行な第３、第４カム面を有し、上記自動制御モードでは上記第３、第４カムフォロア部と干渉せずに上記作動板の回動を許容し、
上記自動制御モードで上記移動カムが上記第１ストッパにより上記第１方向の限界位置にあるとき、上記第４カムフォロア部が上記第４カム面に近接した位置にあり、
上記自動制御モードで上記移動カムが上記第２ストッパにより上記第２方向の限界位置にあるとき、上記第３カムフォロア部が上記第３カム面に近接した位置にあることを特徴とする換気装置。 (A) An elongated device body with a ventilation port formed on the main wall,
(B) A shaft portion extending in the longitudinal direction of the device body and supported by the device body in a rotatable direction and slidable in the longitudinal direction of the device body is provided at one edge portion, and the other edge portion has a shaft portion. An operating plate that has first and second cam followers and opens and closes the ventilation port by approaching or moving away from the main wall as it rotates.
(C) An automatic control position, a forced closing position separated from the automatic control position in the first direction, and a forced opening position separated from the automatic control position in the second direction opposite to the first direction. An operating member connected to the operating plate so as to be movable in the longitudinal direction of the apparatus main body and supported by the apparatus main body and to allow rotation of the operating plate.
(D) A temperature-sensitive actuator that executes an automatic control mode that opens and closes the operating plate according to the environmental temperature when the operating member is in the automatic control position.
The temperature-sensitive actuator
a. It has first and second cam surfaces that are movable in the longitudinal direction of the main body of the device and are inclined so as to proceed in the first direction toward the indoor side and are parallel to each other. The first cam surface cooperates with the first cam follower portion to rotate the operating plate in the opening direction, and the second cam surface cooperates with the second cam follower portion as the operation plate moves in the second direction. With a moving cam that rotates the operating plate in the closing direction,
b. A spring made of a shape memory alloy, one end of which is fixed to the moving cam and the other end of which is fixed to the device body, and which urges the moving cam in the first direction.
c. A bias spring having one end fixed to the moving cam and the other end fixed to the operating body to urge the moving cam in the second direction.
d. A first stopper fixed to the main body of the device and restricting the movement of the moving cam in the first direction to determine a limit position in the opening direction of the operating plate in the automatic control mode.
e. A second stopper fixed to the main body of the device and restricting the movement of the moving cam in the second direction to determine a limit position in the closing direction of the operating plate in the automatic control mode.
With
The operating plate further has third and fourth cam followers, and has a third and fourth cam follower portion.
A fixed cam is fixed to the device main body at a position separated from the moving cam in the longitudinal direction of the device main body.
The fixed cam has third and fourth cam surfaces parallel to the first and second cam surfaces of the moving cam, and in the automatic control mode, the fixed cam does not interfere with the third and fourth cam followers. Allows rotation of the operating plate,
In the automatic control mode, when the moving cam is at the limit position in the first direction by the first stopper, the fourth cam follower portion is at a position close to the fourth cam surface.
A ventilation device characterized in that, in the automatic control mode, when the moving cam is at the limit position in the second direction by the second stopper, the third cam follower portion is at a position close to the third cam surface. さらに、上記装置本体の長手方向に延びて上記装置本体に固定されたスライドガイドを備え、このスライドガイドの長手方向中間部にはガイド窓が形成されており、
上記移動カムは、上記スライドガイドのガイド窓に挿入された状態で上記スライドガイドにスライド可能に支持され、
上記ガイド窓の長手方向両側縁が、上記第１、第２ストッパとして提供されることを特徴とする請求項１に記載の換気装置。 Further, a slide guide extending in the longitudinal direction of the apparatus main body and fixed to the apparatus main body is provided, and a guide window is formed in the intermediate portion in the longitudinal direction of the slide guide.
The moving cam is slidably supported by the slide guide while being inserted into the guide window of the slide guide.
The ventilation device according to claim 1, wherein both side edges in the longitudinal direction of the guide window are provided as the first and second stoppers. 上記移動カムは、上記第１カム面に連なり上記装置本体の長手方向に延びる第１保持面と、上記第２カム面に連なり上記装置本体の長手方向に延びる第２保持面とを有し、
上記固定カムは、上記第３カム面に連なり上記装置本体の長手方向に延びる第３保持面と、上記第４カム面に連なり上記装置本体の長手方向に延びる第４保持面を有し、
上記操作部材が上記強制開き位置にあり、上記作動板が開き状態にあるとき、上記第１カムフォロア部が上記移動カムの上記第１保持面に位置し、上記第３カムフォロア部が、上記固定カムの上記第３保持面に位置し、
上記操作部材が上記強制閉じ位置にあり、上記作動板が閉じ状態にあるとき、上記第２カムフォロア部が上記移動カムの上記第２保持面に位置し、上記第４カムフォロア部が、上記固定カムの上記第４保持面に位置することを特徴とする請求項１または２に記載の換気装置。 The moving cam has a first holding surface connected to the first cam surface and extending in the longitudinal direction of the apparatus main body, and a second holding surface connected to the second cam surface and extending in the longitudinal direction of the apparatus main body.
The fixed cam has a third holding surface connected to the third cam surface and extending in the longitudinal direction of the apparatus main body, and a fourth holding surface connected to the fourth cam surface and extending in the longitudinal direction of the apparatus main body.
When the operating member is in the forced opening position and the operating plate is in the open state, the first cam follower portion is located on the first holding surface of the moving cam, and the third cam follower portion is the fixed cam. Located on the above third holding surface of
When the operating member is in the forced closing position and the operating plate is in the closed state, the second cam follower portion is located on the second holding surface of the moving cam, and the fourth cam follower portion is the fixed cam. The ventilation device according to claim 1 or 2 , wherein the ventilation device is located on the fourth holding surface of the above. 上記自動制御モードにおいて、上記移動カムが上記第２方向の限界位置にあるとき、上記第２カムフォロア部は上記第２カム面の途中において上記第２保持面寄りの位置にあり、これにより、上記作動板の閉じ方向の限界位置では上記作動板が上記主壁から離れて少量の換気を許容することを特徴とする請求項３に記載の換気装置。 In the automatic control mode, when the moving cam is in the limit position in the second direction, the second cam follower portion is in a position closer to the second holding surface in the middle of the second cam surface, whereby the above The ventilation device according to claim 3 , wherein the actuating plate is separated from the main wall to allow a small amount of ventilation at a limit position in the closing direction of the actuating plate. （ア）主壁に換気口を形成してなる細長い装置本体と、
（イ）上記装置本体の長手方向に延び、一方の縁部に、上記装置本体に回動可能かつ上記装置本体の長手方向にスライド可能に支持される軸部を有し、他方の縁部に第１、第２カムフォロア部を有し、回動に伴い上記主壁に近づいたり離れたりして上記換気口を開閉する作動板と、
（ウ）自動制御位置と、この自動制御位置から第１方向側に離れた強制閉じ位置と、この自動制御位置から上記第１方向とは逆の第２方向側に離れた強制開き位置との間で、上記装置本体の長手方向に移動可能にして上記装置本体に支持されるとともに、上記作動板の回動を許容するようにして上記作動板に連結された操作部材と、
（エ）上記操作部材が上記自動制御位置にあるときに、環境温度に応じて上記作動板を開閉する自動制御モードを実行する温度感応型アクチュエータと、
を備え、上記温度感応型アクチュエータは、
ａ．上記装置本体の長手方向に移動可能であり、上記室内側に向かって第１方向に進むように傾斜した互いに平行をなす第１、第２カム面を有し、上記第１方向の移動に伴い上記第１カム面が上記第１カムフォロア部と協働して上記作動板を開き方向に回動させ、上記第２方向の移動に伴い上記第２カム面が上記第２カムフォロア部と協働して上記作動板を閉じ方向に回動させる移動カムと、
ｂ．一端が上記移動カムに固定され他端が上記装置本体に固定され、上記移動カムを上記第１方向に付勢する形状記憶合金製のバネと、
ｃ．一端が上記移動カムに固定され他端が上記操作本体に固定され、上記移動カムを上記第２方向に付勢するバイアスバネと、
ｄ．上記移動カムから上記装置本体の長手方向に離れて上記装置本体に固定された固定カムと、
を備え、
上記作動板は、さらに第３、第４カムフォロア部を有し、
上記固定カムは、上記移動カムの上記第１、第２カム面と平行な第３、第４カム面を有するとともに、上記第３、第４カム面にそれぞれ連なり上記装置本体の長手方向に延びる２つの保持面を有し、上記自動制御モードでは上記第３、第４カムフォロア部と干渉せずに上記作動板の回動を許容し、
上記自動制御モードで上記移動カムが上記第１方向の限界位置にあるとき、上記第４カムフォロア部が上記第４カム面に近接した位置にあり、
上記自動制御モードで上記移動カムが上記第２方向の限界位置にあるとき、上記第３カムフォロア部が上記第３カム面に近接した位置にあり、
上記操作部材が上記強制開き位置にあり、上記作動板が開き状態にあるとき、上記作動板の上記第３カムフォロア部が、上記固定カムの一方の保持面に保持され、
上記操作部材が上記強制閉じ位置にあり、上記作動板が閉じ状態にあるとき、上記作動板の上記第４カムフォロア部が上記固定カムの他方の保持面に保持されることを特徴とする換気装置。 (A) An elongated device body with a ventilation port formed on the main wall,
(B) A shaft portion extending in the longitudinal direction of the device body and supported by the device body in a rotatable direction and slidable in the longitudinal direction of the device body is provided at one edge portion, and the other edge portion has a shaft portion. An operating plate that has first and second cam followers and opens and closes the ventilation port by approaching or moving away from the main wall as it rotates.
(C) An automatic control position, a forced closing position separated from the automatic control position in the first direction, and a forced opening position separated from the automatic control position in the second direction opposite to the first direction. An operating member connected to the operating plate so as to be movable in the longitudinal direction of the apparatus main body and supported by the apparatus main body and to allow rotation of the operating plate.
(D) A temperature-sensitive actuator that executes an automatic control mode that opens and closes the operating plate according to the environmental temperature when the operating member is in the automatic control position.
The temperature-sensitive actuator
a. It has first and second cam surfaces that are movable in the longitudinal direction of the main body of the device and are inclined so as to proceed in the first direction toward the indoor side and are parallel to each other. The first cam surface cooperates with the first cam follower portion to rotate the operating plate in the opening direction, and the second cam surface cooperates with the second cam follower portion as the operation plate moves in the second direction. With a moving cam that rotates the operating plate in the closing direction,
b. A spring made of a shape memory alloy, one end of which is fixed to the moving cam and the other end of which is fixed to the device body, and which urges the moving cam in the first direction.
c. A bias spring having one end fixed to the moving cam and the other end fixed to the operating body to urge the moving cam in the second direction.
d. A fixed cam fixed to the device body away from the moving cam in the longitudinal direction of the device body,
With
The operating plate further has third and fourth cam followers, and has a third and fourth cam follower portion.
The fixed cam has third and fourth cam surfaces parallel to the first and second cam surfaces of the moving cam, and is connected to the third and fourth cam surfaces and extends in the longitudinal direction of the apparatus main body. It has two holding surfaces, and in the automatic control mode, it allows the operation plate to rotate without interfering with the third and fourth cam followers.
When the moving cam is in the limit position in the first direction in the automatic control mode, the fourth cam follower portion is in a position close to the fourth cam surface.
When the moving cam is in the limit position in the second direction in the automatic control mode, the third cam follower portion is in a position close to the third cam surface.
When the operating member is in the forced opening position and the operating plate is in the open state, the third cam follower portion of the operating plate is held by one holding surface of the fixed cam.
A ventilation device characterized in that when the operating member is in the forced closing position and the operating plate is in the closed state, the fourth cam follower portion of the operating plate is held on the other holding surface of the fixed cam. ..
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