JPWO2018100765A1 - Ventilation system member and ventilation fan - Google Patents

Ventilation system member and ventilation fan Download PDF

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JPWO2018100765A1
JPWO2018100765A1 JP2018553641A JP2018553641A JPWO2018100765A1 JP WO2018100765 A1 JPWO2018100765 A1 JP WO2018100765A1 JP 2018553641 A JP2018553641 A JP 2018553641A JP 2018553641 A JP2018553641 A JP 2018553641A JP WO2018100765 A1 JPWO2018100765 A1 JP WO2018100765A1
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ventilation
flange
grill member
grill
pair
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JP6704471B2 (en
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大輔 永▲崎▼
大輔 永▲崎▼
高瀬　毅
毅 高瀬
矢部　大輔
大輔 矢部
雄大 小崎
雄大 小崎
友祐 澤野
友祐 澤野
昭裕 櫛原
昭裕 櫛原
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

ダクトに設置される通風端末器（１）であって、円筒形状の接続筒部（２）と、接続筒部（２）の一端部から拡径方向に張り出したフランジ部（３）とを備えたフランジ部材（４）と、通風構造を備えた通風部（５ａ）と、通風部（５ａ）の周縁から立ち上がる枠部（５ｂ）とを有し、枠部（５ｂ）の内側に挿入されたフランジ部材（４）に係脱可能に装着されるグリル部材（５）とを備え、グリル部材（５）は、突出方向が１８０度異なって枠部（５ｂ）の内側に突出する一対の突起を少なくとも一対有し、フランジ部（３）は、突出方向が１８０度異なって接続筒部（２）の拡径方向に突出する一対のアーチ状の掛止構造（９）と、掛止構造（９）に接続筒部（２）の中心側で隣接し、掛止構造（９）と同じ曲率の曲線状のスリット（１０）とを備えており、一対の掛止構造（９）の先端同士の距離は、グリル部材（５）の枠部（５ｂ）同士の距離以上である。A ventilation terminal (1) installed in a duct, comprising a cylindrical connecting tube portion (2) and a flange portion (3) projecting from one end portion of the connecting tube portion (2) in the diameter increasing direction. The flange member (4), the ventilation part (5a) having a ventilation structure, and the frame part (5b) rising from the periphery of the ventilation part (5a) are inserted inside the frame part (5b). And a grill member (5) that is detachably attached to the flange member (4), and the grill member (5) has a pair of protrusions protruding inward of the frame portion (5b) by 180 degrees in the protruding direction. The flange portion (3) has at least one pair, and the flange portion (3) has a pair of arch-shaped latching structures (9) projecting in the diameter-enlarging direction of the connecting tube portion (2) by 180 degrees and a latching structure (9 ) Adjacent to the center of the connecting tube portion (2), and has a curved slit (1 ) And a distance between the tips of the pair of latching structure (9) is a frame portion of the grill member (5) (5b) Distance between above.

Description

本発明は、風量調節機能を有する換気用システム部材及びこれを備えた換気扇に関する。   The present invention relates to a ventilation system member having an air volume adjustment function and a ventilation fan provided with the ventilation system member.

給気又は排気のための通風路に設置される換気扇が備える換気用システム部材には、特許文献１に開示されるように、施工性及びデザイン性が良く、部品点数が少なく薄型化の可能な風量調節機能を備えたものがある。   As disclosed in Patent Document 1, the ventilation system member provided in the ventilation fan installed in the ventilation path for supplying or exhausting air has good workability and design, can be thinned with a small number of parts. Some have an air volume adjustment function.

特開平８−１５２１８６号公報JP-A-8-152186

上記特許文献１に開示される発明は、グリル部材の内側に設けられた凸形状、又はグリル部材の内側に設けられた凸形状に対応するようにフランジの外側に設けられた掛止め構造にてグリル部材の係脱を実施している。したがって、特許文献１に開示される発明は、グリル内寸が大きい場合又はフランジに設けられた掛止め構造の寸法が小さい場合には、グリル部材の落下に繋がり、グリル内寸が小さい場合又はフランジに設けられた掛止め構造の寸法が大きい場合にはグリル部材をフランジから外せない。よって、特許文献１に開示される発明は、グリル部材の係脱操作を常に安定した荷重で行うことはできなかった。   The invention disclosed in Patent Document 1 is a latch structure provided on the outer side of the flange so as to correspond to the convex shape provided on the inner side of the grill member or the convex shape provided on the inner side of the grill member. The grill member is engaged and disengaged. Therefore, in the invention disclosed in Patent Document 1, when the inner size of the grill is large or when the size of the latching structure provided on the flange is small, the grill member is dropped, and when the inner size of the grill is small or the flange The grill member cannot be removed from the flange when the dimension of the latching structure provided in the is large. Therefore, the invention disclosed in Patent Document 1 cannot always engage and disengage the grill member with a stable load.

本発明は、上記に鑑みてなされたものであって、グリル部材の係脱操作が常に安定した荷重で行える換気用システム部材を得ることを目的とする。   This invention is made in view of the above, Comprising: It aims at obtaining the system member for ventilation which can always engage / disengage a grill member with a stable load.

上述した課題を解決し、目的を達成するために、本発明は、通風路に設置される換気用システム部材であって、円筒形状の接続筒部と、接続筒部の一端部から拡径方向に張り出したフランジ部とを備えたフランジ部材と、通風構造を備えた通風部と、通風部の周縁から立ち上がる枠部とを有し、枠部の内側に挿入されたフランジ部材に係脱可能に装着されるグリル部材とを備える。グリル部材は、突出方向が１８０度異なって枠部の内側に突出する一対の突起を少なくとも一対有する。フランジ部は、突出方向が１８０度異なって接続筒部の拡径方向に突出する一対のアーチ状の掛止構造と、掛止構造に接続筒部の中心側で隣接し、掛止構造と同じ曲率の曲線状のスリットとを備えている。一対の掛止構造の先端同士の距離は、グリル部材の枠部同士の距離以上である。   In order to solve the above-described problems and achieve the object, the present invention is a ventilation system member installed in a ventilation path, and has a cylindrical connecting tube portion and a diameter increasing direction from one end portion of the connecting tube portion. It has a flange member that has a flange portion that protrudes from the top, a ventilation portion that has a ventilation structure, and a frame portion that rises from the periphery of the ventilation portion, and can be engaged with and disengaged from the flange member that is inserted inside the frame And a grill member to be mounted. The grill member has at least a pair of protrusions that protrude inward of the frame portion with different protrusion directions by 180 degrees. The flange portion has a pair of arch-shaped latching structures that project in the diameter-expanding direction of the connecting tube portion with different projecting directions by 180 degrees, and is adjacent to the latching structure on the center side of the connecting tube portion and is the same as the latching structure And a curved slit of curvature. The distance between the tips of the pair of latching structures is equal to or greater than the distance between the frame portions of the grill member.

本発明によれば、グリル部材の係脱操作が常に安定した荷重で行える換気用システム部材を得られるという効果を奏する。   According to the present invention, there is an effect that it is possible to obtain a ventilation system member that can always engage and disengage the grill member with a stable load.

本発明の実施の形態に係る通風端末器の取付け状態を示した断面図Sectional drawing which showed the attachment state of the ventilation terminal which concerns on embodiment of this invention 実施の形態に係る通風端末器の展開斜視図The expansion perspective view of the ventilation terminal concerning an embodiment 実施の形態に係る通風端末器の正面図Front view of ventilation terminal according to the embodiment 実施の形態に係る通風端末器に取付けるグリル部材の正面図The front view of the grill member attached to the ventilation terminal concerning an embodiment 実施の形態に係る通風端末器のグリル部材の背面図The rear view of the grill member of the ventilation terminal concerning an embodiment 実施の形態に係る通風端末器のグリル部材の断面図Sectional drawing of the grill member of the ventilation terminal which concerns on embodiment 実施の形態に係る通風端末器のフランジ部のアーチ形状の掛止構造とグリル部材内側に設けられた突起の引掛りを示した詳細断面図Detailed sectional view showing the arch-shaped latching structure of the flange portion of the ventilation terminal according to the embodiment and the hook of the protrusion provided inside the grill member 実施の形態に係る換気扇の構成を示す図The figure which shows the structure of the ventilation fan which concerns on embodiment

以下に、本発明の実施の形態に係る換気用システム部材及び換気扇を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。   Hereinafter, a ventilation system member and a ventilation fan according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

実施の形態．
図１は、本発明の実施の形態に係る通風端末器の取付け状態を示した断面図である。図２は、実施の形態に係る通風端末器の展開斜視図である。実施の形態に係る換気用システム部材である通風端末器１は、給気又は排気のための通風路を構成するダクト７の室内側の端末部に装着される。室内における装着位置は、天井面、壁面又は床面である。通風端末器１は、樹脂製のフランジ部材４と、フランジ部材４の前面を覆う樹脂製のグリル部材５とから構成されている。グリル部材５は、通風構造を備えた平板状の通風部５ａと、通風部５ａの周縁から立ち上がる枠部５ｂとを有している。グリル部材５は、突出方向が１８０度異なって枠部５ｂの内側に突出する一対の突起１２ａ，１２ｂを少なくとも一対有している。グリル部材５は、枠部５ｂの内側に挿入されたフランジ部材４に係脱可能に装着される。フランジ部材４は、通風路の室内開口端に嵌合接続される両端の開口した接続筒部２と、接続筒部２の前面側の一端から接続筒部２の中心軸から遠ざかる方向に延びたフランジ部３とが一体に形成されている。フランジ部材４の前面の中央には、接続筒部２と連通する開口端１３が開口している。Embodiment.
FIG. 1 is a cross-sectional view showing an attached state of a ventilation terminal according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the ventilation terminal according to the embodiment. The ventilation terminal device 1 that is a ventilation system member according to the embodiment is attached to a terminal portion on the indoor side of a duct 7 that constitutes a ventilation path for supplying or exhausting air. The mounting position in the room is a ceiling surface, a wall surface, or a floor surface. The ventilation terminal 1 includes a resin flange member 4 and a resin grill member 5 that covers the front surface of the flange member 4. The grill member 5 includes a flat plate-shaped ventilation portion 5a having a ventilation structure, and a frame portion 5b that rises from the periphery of the ventilation portion 5a. The grill member 5 has at least a pair of protrusions 12a and 12b that protrude inward of the frame portion 5b with different protrusion directions by 180 degrees. The grill member 5 is detachably attached to the flange member 4 inserted inside the frame portion 5b. The flange member 4 extends in a direction away from the center axis of the connection cylinder part 2 from one end on the front side of the connection cylinder part 2, which is connected to the indoor opening end of the ventilation path. The flange portion 3 is integrally formed. In the center of the front surface of the flange member 4, an opening end 13 that communicates with the connection cylinder portion 2 is opened.

フランジ部材４は、接続筒部２をダクト７へ嵌め込むことにより、外周に取り付けたフォーム材６の圧縮に対する反作用の力でダクト７に仮固定され、かつ接続筒部２とダクト７の隙間を塞ぐ構造である。   The flange member 4 is temporarily fixed to the duct 7 by the reaction force against the compression of the foam material 6 attached to the outer periphery by fitting the connecting cylinder portion 2 into the duct 7, and the gap between the connecting cylinder portion 2 and the duct 7 is set. It is a closed structure.

図３は、実施の形態に係る通風端末器の正面図である。図３では、グリル部材５の図示は省略している。フランジ部３は、突出方向が１８０度異なって接続筒部２の拡径方向に突出する一対のアーチ状の掛止構造９と、掛止構造９に接続筒部２の中心側で隣接し、掛止構造９と同じ曲率の曲線状のスリット１０とを備えている。具体的には、フランジ部３は、正方形の平面形状に形成され、四辺をなす側面には、隅部寄りに各一つずつ、全側面では８個の掛止構造９が形成されている。対向する二辺においては、辺に沿った掛止構造９同士の間隔は等しくなっている。各掛止構造９には、フランジ部３の中心に向かって弾性変形が可能なようにアーチ状のスリット１０が形成されている。   FIG. 3 is a front view of the ventilation terminal according to the embodiment. In FIG. 3, the grill member 5 is not shown. The flange part 3 is adjacent to the hooking structure 9 on the center side of the connecting cylinder part 2 with a pair of arch-like hooking structures 9 projecting in the diameter-expanding direction of the connecting cylinder part 2 with different projecting directions by 180 degrees, A curved slit 10 having the same curvature as the latching structure 9 is provided. Specifically, the flange portion 3 is formed in a square planar shape, and eight retaining structures 9 are formed on the side surfaces forming the four sides, one on each side closer to the corner portion and on all side surfaces. On the two opposite sides, the intervals between the latching structures 9 along the sides are equal. Each latching structure 9 is formed with an arch-shaped slit 10 so as to be elastically deformable toward the center of the flange portion 3.

図４は、実施の形態に係る通風端末器に取付けるグリル部材の正面図である。図５は、実施の形態に係る通風端末器のグリル部材の背面図である。図６は、実施の形態に係る通風端末器のグリル部材の断面図であり、図５中のVI-VI線に沿った断面を示している。図７は、実施の形態に係る通風端末器のフランジ部のアーチ形状の掛止構造とグリル部材内側に設けられた突起の引掛りを示した詳細断面図である。グリル部材５は、図４に示すように、平面形状が正方形とされている。グリル部材５の前面には、複数の傾斜したブレード１１を備えた通風構造が形成されている。図５及び図６に示すように、グリル部材５の二組の対向する二辺のうち一方の組の二辺には、フランジ部材４に形成されたアーチ状の掛止構造９に係脱可能に掛け止まる凸形状の一対の突起１２ａ，１２ｂが、二対形成されている。一対の突起１２ａ，１２ｂを使うことにより、接続筒部２の中心軸回りに９０度ずつ向きを変えた四通りの姿勢のいずれかでグリル部材５をフランジ部材４に装着することができる。したがって、グリル部材５の姿勢によってブレード１１の向きを変えることができ、風の吹き出し方向及び吸い込み方向を固定構造のブレード１１の向きによって変更可能となる。なお、図６においては、風の吹き出し方向を矢印によって示している。上記の機能は、フランジ部３及びグリル部材５の形状を円形にすることによっても、フランジ部３の外形及びグリル部材５の外形を４の倍数個の内角を有する正多角形状とし、フランジ部３の各辺に掛止構造９を設けることによっても実現可能である。   FIG. 4 is a front view of a grill member attached to the ventilation terminal according to the embodiment. FIG. 5 is a rear view of the grill member of the ventilation terminal according to the embodiment. FIG. 6 is a cross-sectional view of the grill member of the ventilation terminal according to the embodiment, and shows a cross section taken along the line VI-VI in FIG. 5. FIG. 7 is a detailed cross-sectional view showing an arch-shaped latching structure of the flange portion of the ventilation terminal according to the embodiment and a hook of a protrusion provided on the inner side of the grill member. As shown in FIG. 4, the grill member 5 has a square planar shape. A ventilation structure having a plurality of inclined blades 11 is formed on the front surface of the grill member 5. As shown in FIGS. 5 and 6, one of the two opposing sides of the grill member 5 can be engaged with or disengaged from an arch-shaped latching structure 9 formed on the flange member 4. Two pairs of projections 12a and 12b having a convex shape that are hooked on the two are formed. By using the pair of protrusions 12a and 12b, the grill member 5 can be mounted on the flange member 4 in any of four postures whose directions are changed by 90 degrees around the central axis of the connecting tube portion 2. Therefore, the direction of the blade 11 can be changed depending on the posture of the grill member 5, and the blowing direction and the suction direction of the wind can be changed depending on the direction of the blade 11 having a fixed structure. In addition, in FIG. 6, the blowing direction of a wind is shown by the arrow. The above function is also achieved by making the outer shape of the flange portion 3 and the grill member 5 into a regular polygon shape having multiple inner angles of 4 by making the shapes of the flange portion 3 and the grill member 5 circular. This can also be realized by providing a latching structure 9 on each side.

グリル部材５は、上記のようにフランジ部３の８個のアーチ形状の掛止構造９に対してグリル部材５の４個の突起１２ａ，１２ｂを係止させ、突起１２ａ，１２ｂよりも通風部５ａ側に係止構造９を位置させることで、フランジ部材４に装着されている。   As described above, the grill member 5 locks the four protrusions 12a and 12b of the grill member 5 to the eight arch-shaped latching structures 9 of the flange portion 3, and the ventilation portion is more than the protrusions 12a and 12b. By mounting the locking structure 9 on the 5a side, the flange member 4 is mounted.

フランジ部３に設けられた１８０度異なる位置にあるアーチ形状の掛止構造９の先端同士の距離は、枠部５ｂ同士の距離以上となっている。フランジ部３に設けられた１８０度異なる位置にあるアーチ形状の掛止構造９の先端同士の距離が、枠部５ｂ同士の距離未満である場合は、スリット１０が無ければグリル部材５を外側に押し出す力が生じ、グリル部材５をフランジ部３から外しにくくなってしまう。しかし、実施の形態に係る通風端末器１は、フランジ部３に設けられた掛止構造９と同じ曲率の曲線状のスリット１０により、掛止構造９がスリット１０側に向かって弾性変形されることで、掛止構造９と枠部５ｂに設けられた突起１２ａ，１２ｂとの引掛り寸法が一定となるため、グリル部材５の係脱操作が常に安定した荷重で行える。   The distance between the tips of the arch-shaped latching structures 9 provided in the flange portion 3 at positions different by 180 degrees is equal to or greater than the distance between the frame portions 5b. When the distance between the tips of the arch-shaped latching structures 9 provided in the flange portion 3 at positions different by 180 degrees is less than the distance between the frame portions 5b, the grill member 5 is moved to the outside without the slit 10. A pushing force is generated, and it becomes difficult to remove the grill member 5 from the flange portion 3. However, in the ventilation terminal 1 according to the embodiment, the latching structure 9 is elastically deformed toward the slit 10 side by the curved slit 10 having the same curvature as the latching structure 9 provided in the flange portion 3. As a result, the hook dimension between the hook structure 9 and the projections 12a and 12b provided on the frame portion 5b is constant, so that the engagement / disengagement operation of the grill member 5 can always be performed with a stable load.

また、グリル部材５の枠部５ｂには、外側に突出する指掛け部８が一体に成形されており、指掛け部８を前方に引っ張ることにより、グリル部材５をフランジ部材４から容易に取り外せるようになっている。したがって、グリル部材５の落下などの危険がなくかつ無理なく容易に係脱操作が実施できる。   Further, the frame 5b of the grill member 5 is integrally formed with a finger hooking portion 8 protruding outward, and the grill member 5 can be easily detached from the flange member 4 by pulling the finger hooking portion 8 forward. It has become. Therefore, the engagement / disengagement operation can be easily performed without any risk of dropping the grill member 5.

図８は、実施の形態に係る換気扇の構成を示す図である。接続筒部２の内部にファン３０が設置されることにより、換気扇４０が構成されている。すなわち、実施の形態に係る換気扇４０は、換気用システム部材である通風端末器１とファン３０とを備えている。実施の形態に係る換気扇４０は、実施の形態に係る通風端末器１と同様に、グリル部材５の係脱操作を常に安定した荷重で行うことが可能である。   FIG. 8 is a diagram illustrating a configuration of the ventilation fan according to the embodiment. A ventilation fan 40 is configured by installing the fan 30 inside the connecting cylinder portion 2. That is, the ventilation fan 40 according to the embodiment includes the ventilation terminal 1 and the fan 30 which are ventilation system members. As with the ventilation terminal 1 according to the embodiment, the ventilation fan 40 according to the embodiment can always engage and disengage the grill member 5 with a stable load.

以上の実施の形態に示した構成は、本発明の内容の一例を示すものであり、別の公知の技術と組み合わせることも可能であるし、本発明の要旨を逸脱しない範囲で、構成の一部を省略、変更することも可能である。   The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

１ 通風端末器、２ 接続筒部、３ フランジ部、４ フランジ部材、５ グリル部材、５ａ 通風部、５ｂ 枠部、６ フォーム材、７ ダクト、８ 指掛け部、９ 掛止構造、１０ スリット、１１ ブレード、１２ａ，１２ｂ 突起、１３ 開口端、３０ ファン、４０ 換気扇。   DESCRIPTION OF SYMBOLS 1 Ventilation terminal device, 2 Connection cylinder part, 3 Flange part, 4 Flange member, 5 Grill member, 5a Ventilation part, 5b Frame part, 6 Foam material, 7 Duct, 8 Finger hook part, 9 Latch structure, 10 Slit, 11 Blade, 12a, 12b Protrusion, 13 Open end, 30 fan, 40 Ventilation fan.

グリル部材５は、上記のようにフランジ部３の８個のアーチ形状の掛止構造９に対してグリル部材５の４個の突起１２ａ，１２ｂを係止させ、突起１２ａ，１２ｂよりも通風部５ａ側に掛止構造９を位置させることで、フランジ部材４に装着されている。 As described above, the grill member 5 locks the four protrusions 12a and 12b of the grill member 5 to the eight arch-shaped latching structures 9 of the flange portion 3, and the ventilation portion is more than the protrusions 12a and 12b. by positioning the hooking structure 9 in 5a side, it is attached to the flange member 4.

Claims (5)

通風路に設置される換気用システム部材であって、
円筒形状の接続筒部と、該接続筒部の一端部から拡径方向に張り出したフランジ部とを備えたフランジ部材と、
通風構造を備えた通風部と、該通風部の周縁から立ち上がる枠部とを有し、前記枠部の内側に挿入された前記フランジ部材に係脱可能に装着されるグリル部材とを備え、
前記グリル部材は、突出方向が１８０度異なって前記枠部の内側に突出する一対の突起を少なくとも一対有し、
前記フランジ部は、突出方向が１８０度異なって前記接続筒部の拡径方向に突出する一対のアーチ状の掛止構造と、該掛止構造に前記接続筒部の中心側で隣接し、該掛止構造と同じ曲率の曲線状のスリットとを備えており、
一対の前記掛止構造の先端同士の距離は、前記グリル部材の枠部同士の距離以上であることを特徴とする換気用システム部材。A ventilation system member installed in a ventilation path,
A flange member comprising a cylindrical connecting tube portion, and a flange portion projecting from one end of the connecting tube portion in the diameter increasing direction;
A ventilation member having a ventilation structure; and a frame member that rises from a peripheral edge of the ventilation member; and a grill member that is detachably attached to the flange member inserted inside the frame member,
The grill member has at least a pair of protrusions that protrude inward of the frame portion with different protrusion directions by 180 degrees,
The flange portion is adjacent to the latching structure on the center side of the connection cylinder portion, and a pair of arch-shaped engagement structures projecting in the diameter-expanding direction of the connection cylinder portion by 180 degrees different from each other. It has a curved slit with the same curvature as the latching structure,
The ventilation system member, wherein a distance between the ends of the pair of hooking structures is equal to or greater than a distance between frame portions of the grill member. 前記フランジ部は、４の倍数個の内角を有する正多角形状であり、
前記掛止構造は、前記フランジ部の各辺に設けられていることを特徴とする請求項１に記載の換気用システム部材。The flange portion is a regular polygon shape having multiple interior angles of 4;
The ventilation system member according to claim 1, wherein the latching structure is provided on each side of the flange portion. 前記フランジ部は、円形であり、前記掛止構造を複数対有することを特徴とする請求項１に記載の換気用システム部材。   The ventilation system member according to claim 1, wherein the flange portion is circular and has a plurality of pairs of the latching structures. 前記グリル部材は、外側に突出する指掛け部を備えることを特徴とする請求項１又は２に記載の換気用システム部材。   The ventilation system member according to claim 1, wherein the grill member includes a finger hook portion protruding outward. 請求項１から４のいずれか１項に記載の換気用システム部材を有することを特徴とする換気扇。   It has the system member for ventilation of any one of Claim 1 to 4, The ventilation fan characterized by the above-mentioned.
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JPH11294815A (en) * 1998-04-07 1999-10-29 Schlegel Engineering Kk Grill for supply and exhaust air
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