JP3656479B2

JP3656479B2 - Ventilation equipment

Info

Publication number: JP3656479B2
Application number: JP27004599A
Authority: JP
Inventors: 健司増田; 祐司芹澤; 敏彦大嶋; 徳昭佐々木
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1999-09-24
Filing date: 1999-09-24
Publication date: 2005-06-08
Anticipated expiration: 2019-09-24
Also published as: JP2001091010A

Description

【０００１】
【発明の属する技術分野】
本発明は、天井構造や壁構造に埋込み室内の空気を送風により換気する換気装置に関し、特に室内側に着脱可能なグリルを備えた換気装置に関するものである。
【０００２】
【従来の技術】
天井構造や壁構造に埋込まれ室内の空気を送風により換気する従来の換気装置としては例えば、特開平１１―１３２５２４号公報に示されているものを挙げることができる。この換気装置は図６に示すように、本体２と室内側に装着されるグリル３を備えている。本体２は、天井裏の空間等に室内吸込口４を室内に臨ませて取付けられ、組込まれている送風機により室内吸込口４から吸込んだ室内の空気を一側に設けられた排気口部に接続されるダクトを介して室外へ排気するものである。本体２の排気口部は、本体２の一側に着脱可能に装着されたシャッターを組込んだ接続枠により構成されている。本体２の室内吸込口４の口縁には外方へ張出す多角形状の取付フランジ２０が形成されていて、この取付フランジ２０を天井面に沿わせた状態で取付けられる。
【０００３】
グリル３は天井面に開口する室内吸込口４の室内側を通風可能に被覆し、換気装置の室内側意匠を構成する。グリル３の本体２への装着は、グリル３の枠部の数カ所に形成された掛止片（図示しない）を本体２の取付フランジ２０の背面側に形成された係合部２１へ掛止めすることにより行われる。この他にもグリル３の背面側の対向位置に開脚状のＶ型バネを設け、これを本体２に設けられた長孔付きの取付金具に引っ掛けて吊り状態に装着するものもある。
【０００４】
【発明が解決しようとする課題】
上記した従来の換気装置においては、本体２のダクトとの接続方向（排気方向）が決まってしまうと、天井面に対する取付フランジ２０の向きも決まり、グリル３の向きも決まってしまう。そのため天井面の模様や目地の調子にグリル３の向きを合わせることが出来ず、室内側意匠を構成しているグリル３の装着状態での意匠性を生かすことができないといった問題点がある。また、グリル３が樹脂で形成され、掛止片の係合部２１への係合により装着するものでは、対向位置の掛止片を係合部２１から外しグリル３を下方に引き下すことにより取外すことができるようになっているが、この操作に伴ってグリル３の枠部が弾性変形し、対向位置の掛止片を外そうとするとこの掛止片と９０度ずれた位置の掛止片に内側に向かう力が作用し、係合部２１に食い込む形態となるため、グリル３の取外しが難しいといった問題点もある。
【０００５】
本発明は、係る従来の問題点を解決するためになされたものであって、その課題とするところは、グリルの意匠を仕切構造の室内側面の模様や目地等の調子に容易に合わせることができる、取付状態での外観性の良い換気装置を得ることであり、その換気装置のグリルの安定性や取外性の向上を推進することである。
【０００６】
【課題を解決するための手段】
前記課題を達成するために請求項１の発明は、室内外を仕切る仕切構造の室外側に取付けられ、室内側には室内に臨む開口部を有する送風機能を持つ本体と、本体の開口部を室内側において通風可能に被覆する着脱可能のグリルとを備えた換気装置について、その本体の開口部には外方へ張出し仕切構造の室内側に当接する取付フランジを設け、取付フランジに開口部を囲む円形係合部を形成し、グリルにはこの円形係合部に係脱可能に掛止まり、円形係合部の円周に沿って摺動できる複数の掛止手段を設け、本体の開口部に対してグリルを仕切構造の室内側面と平行な面内で回転できるようにする手段を採用する。
【０００７】
前記課題を達成するために請求項２の発明は、請求項１に係る前記手段における掛止手段に円形係合部の略円周に掛止まる主掛止手段と、この主掛止手段より内側に位置する副掛止手段を設ける手段を採用する。
【０００８】
前記課題を達成するために請求項３の発明は、請求項１又は請求項２のいずれかに係る前記手段における掛止手段の一つの円形係合部からの脱離により他の掛止手段の円形係合部との係合が仕切構造の室内側面と略平行な面内でのスライドにより全て外れる構成とする手段を採用する。
【０００９】
前記課題を達成するために請求項４の発明は、請求項１〜請求項３までのいずれかに係る前記手段における本体又はグリルのいずれかにグリルに回転抵抗を付与する抵抗付与手段を設ける手段を採用する。
【００１０】
【発明の実施の形態】
実施の形態１．
図１〜図４によって示す本実施の形態は、天井構造や壁構造等の仕切構造１に埋込み室内の空気を送風により換気する換気装置に関するものである。この換気装置は図１，２に示すように、本体２と室内側に装着されるグリル３を備えている。本体２は、天井裏の空間等に室内に臨む開口部である室内吸込口４を室内に臨ませて取付けられ、組込まれている送風機により室内吸込口４から吸込んだ室内の空気を一側に設けられた排気口部に接続されるダクト（図示しない）を介して室外へ排気する。本体２の排気口部は、本体２の一側に着脱可能に装着されたダクト接続枠５により構成されている。
【００１１】
本体２の室内吸込口４の口縁には外方へ張出す外周が円をなす取付フランジ６が形成されていて、この取付フランジ６の背面を仕切構造１の室内側面に沿わせた状態で図３，４に示すように取付けられる。取付フランジ６の外周には段差をもって室内側において外方へ延出する室内吸込口４を囲む外周が円形に構成された円形係合部７が形成されている。グリル３は本体２の室内吸込口４を室内側において被覆する通風可能な枠体として合成樹脂により円形や多角形の平面形状に形成され、外周部を構成する枠部８には背面側に突出する立上り部９を有し、前面は意匠面として通風構造１０を利用した意匠が施されている。グリル３の立上り部９で囲まれる平面形状は、円形係合部７が略内接する多角形又は円形係合部７が略収まる円形に形成されている。
【００１２】
グリル３の立上り部９の内壁面には図１及び図３に示すように略９０度ずつずれた位置に、断面台形の掛止構造１１が内側に突出して一体に形成されている。掛止構造１１の一方の斜面１２は立上り部９の自由端に続き、他の斜面１３は背面側に向いていて、立上り部９の外方への弾性変形を利用して円形係合部７に外側から滑らせて係合できるように構成されている（図４参照）。対向する二つの掛止構造１１の外側の立上り部９には指先を掛けて押圧するための突起１４がそれぞれ図１に示すように設けられている。掛止構造１１の内面には一面が斜面１２を延長する形態に形成された断面三角形状の小突起１５が形成されている（図３，４参照）。この小突起１５はグリル３が経時劣化等により歪みを生じた場合にグリル３の保持に機能する副掛止手段であり、掛止構造１１は通常においてグリル３の保持に機能する主掛止手段である。
【００１３】
この換気装置は、天井板等の仕切構造１に開設した取付孔１６にまずダクト接続枠５を挿通させてダクトとの接続方向を決めて取付け、この後、ダクト接続枠５に接続できる方向に本体２を取付孔１６に取付フランジ６を室内側にして挿通させ、ダクト接続枠５と接続状態にして取付フランジ６の背面が仕切構造１の室内側面に当接する状態にして取付けた後、グリル３を本体２の室内吸込口４を被覆する状態に室内側に装着することにより取付けられる（図４参照）。
【００１４】
グリル３を装着する前の換気装置は、仕切構造１の取付孔１６の孔縁が背面に当り、円形係合部７と仕切構造１の室内側面とにより図４において符号１７で示す円形のリング溝が形成されている。グリル３を室内側からこの取付フランジ６に合わせ、各掛止構造１１が円形係合部７の外周に当る状態にしてグリル３全体を本体２側へ押圧してやれば、各掛止構造１１の斜面１２を円形係合部７が滑りながら立上り部９を外方へ押し広げ、円形係合部７の段差に各掛止構造１１が係合し、グリル３が図１，３に示すように保持される。この状態のグリル３は円形係合部７に掛止構造１１が係合したまま摺動でき、いずれの方向にも仕切構造１の平面内で３６０度回転させることができる。従って、仕切構造１の室内側の模様や目地の調子にグリル３の意匠面が調和するように自由に回転させて外観性よく装着することができる。部屋の隅の天井入隅部等に換気装置を取付けても、直角をなす壁面に沿ってグリル３の輪郭線を合わせることができ、取付状態の外観性を良好なものにできる。
【００１５】
装着したグリル３は必要に応じ容易に取外すことができる。即ち、突起１４の一つを室内側に押圧し当該部の立上り部９を外方へ弾性変形させれば、掛止構造１１の斜面１３を滑らせて当該掛止構造１１を円形係合部７から外すことができる。こうしておいてから、そのまま仕切構造１の室内側面と略平行な面内で外し方向とは反対方向へスライドさせれば、最初に外した掛止構造１１に対向する掛止構造１１は当該部の円形係合部７から退離して外れ、これに略９０度ずれた位置の各掛止構造１１は円形係合部７から接線方向に退離して外れ、全ての掛止構造１１が外れグリル３を容易に取外すことができる。グリル３の装着にもこの仕方を逆手順によって利用することができる。
【００１６】
なお、掛止構造１１は二個以上構成すれば機能するが、多いと取外しがし難くなり、少ないと装着状態の安定性が低下するため本実施の形態のように四個ほどが好適であるが、掛止構造１１を対向する二個にして、取付フランジ６の外周に設けた切欠きから挿通させてグリル３を回転させるようにしてもよい。また、本実施の形態は給気用の換気装置にも同様な仕方で適用することが可能である。
【００１７】
このように装着したグリル３も、経時劣化等で枠部８に歪みが生じることもある。この場合に掛止構造１１の幾つかが円形係合部７から離脱するとグリル３が落下してしまう恐れがある。しかしながら本実施の形態のグリル３には主掛止手段としての掛止構造１１の他に副掛止手段としての小突起１５が設けられ、これらが円形係合部７に引っ掛かるためグリル３の落下は回避される。
【００１８】
実施の形態２．
図５に示す本実施の形態の換気装置は、装着状態のグリル３に適度な回転抵抗を付与し、振動などで簡単に回転しないようにする工夫を講じたもので、それに係る構成以外は実施の形態１のものと同じである。従って、実施の形態１のものと同じ部分については実施の形態１のものと同じ符合を用い、それらについての説明は省略する。
【００１９】
グリル３に適度の回転抵抗を付与するには、グリル３の回転軸と略直角の方向からグリル３に適度な弾性力を付勢すればよい。例えば図５に示すように抵抗付与手段としてクッション材１８をグリル３の背面に貼設し、装着状態では押縮んだ状態で取付フランジ６に当るように構成する。あるいは、取付フランジ６の前面にクッション材１８を貼設し装着状態では押縮んだ状態でグリル３背面に当るように構成する。こうした構成によりグリル３には適度な回転抵抗が付与され無闇に回転したりせず装着状態の安定性が増す。このような構成を採用すれば、質量の偏りがあるグリル３でも壁構造に対する取付けに対応することが可能になる。これ以外の機能は実施の形態１のものと同じである。
【００２０】
【発明の効果】
請求項１の発明によれば、グリルの意匠を仕切構造の室内側面の模様や目地等の調子に容易に合わせることができる、取付状態での外観性の良い換気装置が得られる。
【００２１】
請求項２の発明によれば、請求項１に係る前記効果とともにグリルに歪みが生じてもグリルの離脱を防止でき、グリルの安定性が増す。
【００２２】
請求項３の発明によれば、請求項１又は請求項２のいずれかに係る前記効果とともにグリルの取外性が向上する。
【００２３】
請求項４の発明によれば、請求項１〜請求項３までのいずれかに係る前記効果とともにグリルの安定性が増す。
【図面の簡単な説明】
【図１】実施の形態１の換気装置を示す斜視図である。
【図２】実施の形態１の換気装置を一部を破断して示す正面図である。
【図３】実施の形態１の換気装置を取付状態で示す一部破断部分側面図である。
【図４】図３のＡ矢印部の拡大図である。
【図５】実施の形態２の換気装置の要部を拡大して示す断面図である。
【図６】従来の換気装置を一部を破断して示す正面図である。
【符号の説明】
１仕切構造、２本体、３グリル、４室内吸込口、６取付フランジ、７円形係合部、１１掛止構造、１５小突起、１８クッション材。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ventilator that is embedded in a ceiling structure or a wall structure and ventilates indoor air by blowing air, and particularly relates to a ventilator that includes a detachable grill on the indoor side.
[0002]
[Prior art]
As a conventional ventilator that is embedded in a ceiling structure or a wall structure and ventilates indoor air by blowing air, for example, one disclosed in JP-A-11-132524 can be cited. As shown in FIG. 6, the ventilation device includes a main body 2 and a grill 3 mounted on the indoor side. The main body 2 is attached to the space behind the ceiling with the indoor suction port 4 facing the room, and the air blown into the room from the indoor suction port 4 by a built-in blower is provided at an exhaust port provided on one side. The air is exhausted outside through a connected duct. The exhaust port portion of the main body 2 is configured by a connection frame that incorporates a shutter that is detachably mounted on one side of the main body 2. A polygonal mounting flange 20 projecting outward is formed at the mouth edge of the indoor suction port 4 of the main body 2, and the mounting flange 20 is mounted in a state along the ceiling surface.
[0003]
The grill 3 covers the indoor side of the indoor suction port 4 that opens to the ceiling surface so as to allow ventilation, and constitutes the indoor side design of the ventilation device. When the grill 3 is attached to the main body 2, hooking pieces (not shown) formed at several places on the frame portion of the grill 3 are hooked on an engaging portion 21 formed on the back side of the mounting flange 20 of the main body 2. Is done. In addition, there is a type in which an open leg-shaped V-shaped spring is provided at an opposing position on the back side of the grill 3 and is hooked on a long-hole mounting bracket provided in the main body 2 to be suspended.
[0004]
[Problems to be solved by the invention]
In the conventional ventilation device described above, when the connection direction (exhaust direction) with the duct of the main body 2 is determined, the direction of the mounting flange 20 with respect to the ceiling surface is also determined, and the direction of the grill 3 is also determined. For this reason, the orientation of the grille 3 cannot be matched to the pattern of the ceiling surface or the joint tone, and there is a problem that the design properties in the mounted state of the grille 3 constituting the indoor design cannot be utilized. When the grill 3 is formed of resin and is mounted by engaging the engaging piece 21 with the engaging piece 21, the engaging piece 21 at the opposite position is removed from the engaging portion 21 and the grill 3 is pulled downward. Although it can be removed, the frame portion of the grill 3 is elastically deformed in accordance with this operation, and when it is attempted to remove the latching piece at the opposite position, the latching at a position shifted by 90 degrees from this latching piece. There is also a problem that it is difficult to remove the grille 3 because the inward force acts on the piece and bites into the engaging portion 21.
[0005]
The present invention has been made to solve such conventional problems, and the problem is that the design of the grill can be easily adjusted to the pattern of the interior side surface of the partitioning structure, the condition of joints, and the like. It is possible to obtain a ventilator with good appearance in an attached state, and to promote the improvement of the stability and detachability of the grill of the ventilator.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the invention of claim 1 is provided with a main body having a blowing function attached to the outdoor side of a partition structure that partitions the interior and the exterior, and having an opening facing the room on the indoor side, and an opening of the main body. About the ventilation device provided with the detachable grill that covers the indoor side so that ventilation is possible, the opening of the main body is provided with a mounting flange that projects outwardly and contacts the indoor side of the partition structure, and the mounting flange has the opening. An encircling circular engaging portion is formed, and the grille is provided with a plurality of engaging means that can detachably engage with the circular engaging portion and slide along the circumference of the circular engaging portion. On the other hand, means for allowing the grill to rotate in a plane parallel to the indoor side surface of the partition structure is employed.
[0007]
In order to achieve the above object, the invention according to claim 2 is characterized in that the latching means of the means according to claim 1 is engaged with the main latching means latched on the substantially circumference of the circular engagement portion, and inside the main latching means. A means for providing a secondary latching means located at the position is adopted.
[0008]
In order to achieve the above object, the invention according to claim 3 is characterized in that the latching means of the means according to either claim 1 or claim 2 is separated from one circular engaging portion by the other latching means. A means is adopted in which the engagement with the circular engagement portion is completely disengaged by sliding in a plane substantially parallel to the indoor side surface of the partition structure.
[0009]
In order to achieve the above object, a fourth aspect of the present invention is a means for providing resistance applying means for applying rotational resistance to the grill in either the main body or the grill in the means according to any one of the first to third aspects. Is adopted.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
The present embodiment shown in FIGS. 1 to 4 relates to a ventilator that is embedded in a partition structure 1 such as a ceiling structure or a wall structure and ventilates the air in the room by blowing air. As shown in FIGS. 1 and 2, the ventilator includes a main body 2 and a grill 3 mounted on the indoor side. The main body 2 is attached to the space behind the ceiling or the like with the indoor suction port 4 which is an opening facing the room facing the room, and the indoor air sucked from the indoor suction port 4 by the built-in blower is brought to one side. Exhaust air to the outside through a duct (not shown) connected to the exhaust port provided. The exhaust port portion of the main body 2 is configured by a duct connection frame 5 that is detachably attached to one side of the main body 2.
[0011]
A mounting flange 6 having a circular outer periphery extending outward is formed at the rim of the indoor suction port 4 of the main body 2, and the rear surface of the mounting flange 6 is aligned with the indoor side surface of the partition structure 1. As shown in FIGS. A circular engagement portion 7 is formed on the outer periphery of the mounting flange 6. The circular engagement portion 7 has a circular outer periphery that surrounds the indoor suction port 4 that extends outward on the indoor side with a step. The grill 3 is formed in a circular or polygonal plane shape with synthetic resin as a frame that allows ventilation to cover the indoor suction port 4 of the main body 2 on the indoor side, and protrudes to the back side of the frame portion 8 that constitutes the outer peripheral portion. The front surface is provided with a design using the ventilation structure 10 as a design surface. The planar shape surrounded by the rising portion 9 of the grill 3 is formed in a polygon in which the circular engagement portion 7 is substantially inscribed or a circle in which the circular engagement portion 7 is substantially contained.
[0012]
On the inner wall surface of the rising portion 9 of the grill 3, a trapezoidal locking structure 11 having a trapezoidal cross section is integrally formed at a position shifted by approximately 90 degrees as shown in FIGS. One inclined surface 12 of the latching structure 11 continues to the free end of the rising portion 9, and the other inclined surface 13 faces the back surface side, and the circular engaging portion 7 is utilized by elastic deformation of the rising portion 9 outward. It can be slid from the outside and engaged (see FIG. 4). As shown in FIG. 1, projections 14 are provided on the rising portions 9 on the outer sides of the two opposing latching structures 11 for hooking and pressing the fingertips. A small protrusion 15 having a triangular cross-section is formed on the inner surface of the latching structure 11 so that one surface extends the slope 12 (see FIGS. 3 and 4). The small protrusions 15 are auxiliary latching means that function to hold the grille 3 when the grille 3 is distorted due to deterioration over time or the like, and the latching structure 11 is usually the main latching means that functions to hold the grille 3. It is.
[0013]
In this ventilation device, the duct connection frame 5 is first inserted into the mounting hole 16 opened in the partition structure 1 such as a ceiling panel, and the connection direction with the duct is determined and then installed in a direction in which the duct connection frame 5 can be connected. After the main body 2 is inserted into the mounting hole 16 with the mounting flange 6 facing the indoor side, connected to the duct connection frame 5 and mounted with the rear surface of the mounting flange 6 in contact with the indoor side surface of the partition structure 1, the grill 3 is attached to the indoor side so as to cover the indoor suction port 4 of the main body 2 (see FIG. 4).
[0014]
The ventilator before mounting the grill 3 has a circular ring indicated by reference numeral 17 in FIG. 4 due to the hole edge of the mounting hole 16 of the partition structure 1 hitting the back surface and the circular engagement portion 7 and the indoor side surface of the partition structure 1. Grooves are formed. If the grille 3 is aligned with the mounting flange 6 from the indoor side, and each latching structure 11 is brought into contact with the outer periphery of the circular engaging portion 7, the entire grille 3 is pressed toward the main body 2 side. 12, while the circular engagement portion 7 slides, the rising portion 9 is pushed outward, the engaging structures 11 are engaged with the steps of the circular engagement portion 7, and the grille 3 is held as shown in FIGS. Is done. The grill 3 in this state can slide while the latching structure 11 is engaged with the circular engaging portion 7 and can be rotated 360 degrees in the plane of the partition structure 1 in any direction. Therefore, the partition surface 1 can be freely rotated so that the design surface of the grille 3 is in harmony with the interior pattern and joint tone of the partition structure 1 and can be mounted with good appearance. Even if the ventilation device is attached to the ceiling corner of the room corner, the contour line of the grill 3 can be matched along the wall surface forming a right angle, and the appearance of the attached state can be improved.
[0015]
The mounted grill 3 can be easily removed as necessary. That is, if one of the protrusions 14 is pressed indoors and the rising portion 9 of the part is elastically deformed outward, the slope 13 of the latching structure 11 is slid to cause the latching structure 11 to be circularly engaged. 7 can be removed. Then, if the slide structure 11 is slid in the direction opposite to the removal direction within a plane substantially parallel to the indoor side surface of the partition structure 1 as it is, the latch structure 11 facing the latch structure 11 removed first is Each latching structure 11 at a position deviated from the circular engagement portion 7 and displaced by about 90 degrees is separated from the circular engagement portion 7 in a tangential direction, and all the latching structures 11 are detached. Can be easily removed. This method can also be used for mounting the grill 3 by the reverse procedure.
[0016]
It should be noted that, if two or more latching structures 11 are configured, they will function, but if they are large, it will be difficult to remove them, and if they are small, the stability of the mounting state will be reduced, so that about four are preferable as in this embodiment. However, the two hooking structures 11 may be opposed to each other, and the grille 3 may be rotated by being inserted through a notch provided on the outer periphery of the mounting flange 6. Further, the present embodiment can be applied to a ventilation device for supplying air in a similar manner.
[0017]
The grill 3 mounted in this way may also be distorted in the frame portion 8 due to deterioration over time. In this case, if some of the latching structures 11 are detached from the circular engaging portion 7, the grill 3 may fall. However, the grill 3 according to the present embodiment is provided with small projections 15 as auxiliary latching means in addition to the latching structure 11 as the main latching means. Is avoided.
[0018]
Embodiment 2. FIG.
The ventilator according to the present embodiment shown in FIG. 5 is devised so as to give an appropriate rotational resistance to the mounted grill 3 so that it does not rotate easily due to vibration or the like. It is the same as that of the first form. Therefore, the same reference numerals as those of the first embodiment are used for the same parts as those of the first embodiment, and description thereof is omitted.
[0019]
In order to impart an appropriate rotational resistance to the grill 3, an appropriate elastic force may be applied to the grill 3 from a direction substantially perpendicular to the rotation axis of the grill 3. For example, as shown in FIG. 5, a cushioning material 18 is pasted on the back surface of the grill 3 as a resistance applying means, and in a mounted state, the cushioning material 18 is configured to be pressed against the mounting flange 6. Alternatively, the cushion material 18 is pasted on the front surface of the mounting flange 6 so as to hit the rear surface of the grill 3 while being compressed in the mounted state. With such a configuration, the grill 3 is provided with an appropriate rotational resistance and does not rotate darkly, so that the stability of the mounted state increases. By adopting such a configuration, it becomes possible to cope with the attachment to the wall structure even with the grill 3 having a mass deviation. Other functions are the same as those of the first embodiment.
[0020]
【The invention's effect】
According to the first aspect of the present invention, it is possible to obtain a ventilator having a good appearance in an attached state, in which the design of the grill can be easily adjusted to the pattern of the interior side surface of the partition structure and the condition of joints.
[0021]
According to the invention of claim 2, together with the effect according to claim 1, even if the grill is distorted, the grill can be prevented from being detached, and the stability of the grill is increased.
[0022]
According to invention of Claim 3, the detachability of a grill improves with the said effect which concerns on either Claim 1 or Claim 2.
[0023]
According to invention of Claim 4, stability of a grill increases with the said effect which concerns on any one of Claims 1-3.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a ventilation device according to a first embodiment.
FIG. 2 is a front view showing the ventilation device of the first embodiment with a part thereof broken.
FIG. 3 is a partially broken partial side view showing the ventilation device of the first embodiment in an attached state.
4 is an enlarged view of a portion indicated by an arrow A in FIG.
FIG. 5 is an enlarged cross-sectional view showing a main part of a ventilator according to a second embodiment.
FIG. 6 is a front view showing a conventional ventilation device with a part thereof broken.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Partition structure, 2 Main body, 3 Grill, 4 Indoor inlet, 6 Mounting flange, 7 Circular engaging part, 11 Latch structure, 15 Small protrusion, 18 Cushion material

Claims

A main body having an air blowing function which is attached to the outdoor side of a partition structure for partitioning the inside and outside of the room and has an opening facing the room on the indoor side, and a detachable grill which covers the opening of the main body so as to allow ventilation in the indoor side Provided with a mounting flange that projects outwardly at the opening of the main body and abuts against the indoor side of the partition structure, and a circular engagement portion that surrounds the opening is formed on the mounting flange. The grille is provided with a plurality of latching means that are detachably latched on the circular engagement portion and that can slide along the circumference of the circular engagement portion, A ventilator that allows the grill to rotate in a plane parallel to the indoor side surface of the partition structure.

The ventilating apparatus according to claim 1, wherein the latching means is provided with a main latching means that latches on a substantially circumference of the circular engagement portion, and a secondary latching means positioned inside the main latching means. Ventilation device.

3. The ventilation apparatus according to claim 1, wherein the engagement of the hooking means with the circular engaging portion of the other hooking means is separated by the detachment of the hooking means from one circular engaging portion. A ventilator that is configured to be removed by sliding in a plane substantially parallel to the interior side of the structure.

The ventilator according to any one of claims 1 to 3, wherein the main body or the grill is provided with resistance imparting means for imparting rotational resistance to the grill.