JP2022092852A - Ventilation port terminal member and building - Google Patents

Ventilation port terminal member and building Download PDF

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JP2022092852A
JP2022092852A JP2020205804A JP2020205804A JP2022092852A JP 2022092852 A JP2022092852 A JP 2022092852A JP 2020205804 A JP2020205804 A JP 2020205804A JP 2020205804 A JP2020205804 A JP 2020205804A JP 2022092852 A JP2022092852 A JP 2022092852A
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plate
ventilation port
terminal member
top plate
hood
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JP7545883B2 (en
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拓 黒木
Taku Kuroki
雅直 大脇
Masanao Owaki
徳人 水野
Norihito Mizuno
祐介 田中
Yusuke Tanaka
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Kumagai Gumi Co Ltd
Melco Airtec Corp
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Kumagai Gumi Co Ltd
Melco Airtec Corp
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Abstract

To provide a ventilation port terminal member etc. which enables improvement of damping effect against vibration propagated to a hood part when droplets fall and collide with a droplet receiving plate and achieves excellent effect of reducing sound caused by droplets when the droplets fall and collide with a surface of the droplet receiving plate.SOLUTION: A ventilation port terminal member according to the invention is attached to a ventilation hole formed on an outer wall of a building and includes: a hood part 3 protruding to the outer side of the building farther than an outer wall surface of the building; an elastic support body 4 connected to a top plate part 6 of the hood part 3; and a droplet receiving plate 5 which is connected to the elastic support body 4 and provided so as to be located above the top plate part 6 of the hood part 3. Rigidity of the top plate part 6 of the hood part 3 is higher than rigidity of a plate part, which excludes the top plate part 6, of the hood part 3.SELECTED DRAWING: Figure 4

Description

本発明は、フード部の天板の上に弾性支持体を介して水滴受板が設けられた構造を備えた換気口端末部材等に関する。 The present invention relates to a ventilation port terminal member or the like having a structure in which a water droplet receiving plate is provided on a top plate of a hood portion via an elastic support.

集合住宅、ホテル、事務所ビル等の建物においては、換気設備の設置が義務付けられている。当該換気設備としては、居室に換気口が設置されて、居室の外壁にベントキャップ等と呼称される換気口端末部材が設置されることが多い。
当該換気口端末部材は、フード部が外壁面よりも外側に突出するように建物の上下階の外壁の換気孔にそれぞれ取付けられ、上下階の各換気口端末部材が、垂直線上に位置されることが多い。
当該建物においては、降雨等の後に、上階の換気口端末部材から水滴が落下して下階の換気口端末部材のフード部の天板の上に衝突した際に、水滴落下衝突音が生じ、当該水滴落下衝突音が固体伝播音として居室内に伝播する。
当該水滴落下衝突音の低下対策を施した換気口端末部材としては、例えば、フード部の天板の上に弾性支持体を介して水滴受板が設けられた構造のものが知られている（特許文献１参照）。
特許文献１に開示された換気口端末部材では、フード部の天板の上に弾性支持体を介して水滴受板が設けられた構造であるため、弾性支持体のばねによる減衰効果によって水滴落下衝突時における低周波数帯域の音を低減させる効果が得られる。 Ventilation equipment is obligatory in buildings such as apartment buildings, hotels, and office buildings. As the ventilation equipment, a ventilation port is often installed in the living room, and a ventilation port terminal member called a vent cap or the like is often installed on the outer wall of the living room.
The ventilation port terminal member is attached to each of the ventilation holes on the outer wall of the upper and lower floors of the building so that the hood portion protrudes outward from the outer wall surface, and each ventilation port terminal member on the upper and lower floors is positioned on a vertical line. Often.
In the building, when water droplets fall from the ventilation port terminal member on the upper floor and collide with the top plate of the hood part of the ventilation port terminal member on the lower floor after rainfall, etc., a water droplet drop collision sound is generated. , The water drop drop collision sound propagates in the living room as a solid-borne sound.
As a ventilation port terminal member for which measures are taken to reduce the sound of falling water droplets, for example, a member having a structure in which a water droplet receiving plate is provided on a top plate of a hood portion via an elastic support is known ( See Patent Document 1).
Since the ventilation port terminal member disclosed in Patent Document 1 has a structure in which a water droplet receiving plate is provided on the top plate of the hood portion via an elastic support, water droplets fall due to the damping effect of the spring of the elastic support. The effect of reducing the sound in the low frequency band at the time of collision can be obtained.

特許第５２５８７１２号公報Japanese Patent No. 5258712

しかしながら、特許文献１に開示された換気口端末部材では、水滴受板への水滴落下衝突時においてフード部に伝搬してきた振動に起因する音を低減させる効果が十分ではないという課題があった。
本願発明は、水滴受板への水滴落下衝突時においてフード部に伝搬してきた振動に対するダンピング効果を向上できて、水滴受板の表面に対する水滴落下衝突時における水滴落下衝突音の低減効果に優れた換気口端末部材等を提供するものである。 However, the ventilation port terminal member disclosed in Patent Document 1 has a problem that the effect of reducing the sound caused by the vibration propagating to the hood portion at the time of a water droplet drop collision with the water droplet receiving plate is not sufficient.
INDUSTRIAL APPLICABILITY The present invention can improve the damping effect against the vibration propagated to the hood portion at the time of a water droplet drop collision with the water droplet receiving plate, and is excellent in the effect of reducing the water droplet drop collision sound at the time of the water droplet drop collision with the surface of the water droplet receiving plate. It provides a ventilation port terminal member and the like.

本発明に係る換気口端末部材は、建物の外壁に形成された換気孔に取付けられる換気口端末部材であって、建物の外壁面より建物の外側に突出するフード部と、フード部の天板部に連結された弾性支持体と、弾性支持体に連結されてフード部の天板部の上方に位置するように設けられた水滴受板とを備え、フード部の天板部の剛性が、フード部の天板部以外の板部の剛性よりも大きいことを特徴とするので、剛性の大きいフード部の天板部を備えたことにより、水滴受板への水滴落下衝突時においてフード部に伝搬してきた振動に対するダンピング効果を向上できて、水滴受板の表面に対する水滴落下衝突時における水滴落下衝突音の低減効果に優れた換気口端末部材が得られる。
また、フード部の天板部は、ばね機能部と、ダンパー機能部とを備えたことを特徴とするので、水滴受板への水滴落下衝突時においてフード部に伝搬してきた振動に対するダンピング効果を向上できて、水滴受板の表面に対する水滴落下衝突時における水滴落下衝突音の低減効果に優れた換気口端末部材が得られる。
また、ばね機能部は、フード部の天板により構成され、ダンパー機能部は、フード部の天板よりも剛性が大きい板により構成され、弾性支持体は、板ばねにより構成され、ダンパー機能部を構成する板の上側板面とばね機能部を構成するフード部の天板の下側板面とが接触し、かつ、当該天板の上側板面と弾性支持体を構成する板ばねの下側板面とが接触するように、当該弾性支持体とばね機能部とダンパー機能部とが連結手段により連結されたことを特徴とする。
また、ダンパー機能部は、上側板面がフード部の天板の下側板面と接触するように連結手段で連結された平板により構成されたことを特徴とする。
以上のような本発明に係る換気口端末部材によれば、フード部の天板部が、ばね機能部を構成するフード部の天板とダンパー機能部を構成する板とで構成されたことによって、水滴受板への水滴落下衝突時においてフード部に伝搬してきた振動に対するダンピング効果を向上できて、水滴受板の表面に対する水滴落下衝突時における水滴落下衝突音の低減効果に優れた換気口端末部材が得られる。
また、本発明に係る建物は、上述した換気口端末部材のフード部及び水滴受板が外壁面よりも外側に突出するように当該換気口端末部材が外壁に設けられた建物であって、建物の上下階の外壁に設けられた各換気口端末部材の各水滴受板の表面が、垂直線上に位置されたことを特徴とするので、換気口端末部材の水滴受板の表面に対する水滴落下衝突時における水滴落下衝突音の低減効果に優れた建物を提供できる The ventilation port terminal member according to the present invention is a ventilation port terminal member attached to a ventilation hole formed in an outer wall of a building, and has a hood portion protruding from the outer wall surface of the building to the outside of the building and a top plate of the hood portion. It is provided with an elastic support connected to the portion and a water drop receiving plate connected to the elastic support and provided so as to be located above the top plate portion of the hood portion, and the rigidity of the top plate portion of the hood portion is increased. Since it is characterized by being larger than the rigidity of the plate part other than the top plate part of the hood part, by providing the top plate part of the hood part with high rigidity, the hood part can be used when a water drop hits the water drop receiving plate. It is possible to improve the damping effect against the propagated vibration, and to obtain a ventilation port terminal member having an excellent effect of reducing the sound of the water drop drop collision at the time of the water drop drop collision with the surface of the water drop receiving plate.
Further, since the top plate portion of the hood portion is provided with a spring function portion and a damper function portion, the damping effect against the vibration propagated to the hood portion at the time of a water droplet drop collision with the water droplet receiving plate can be obtained. It is possible to obtain a ventilation port terminal member which can be improved and has an excellent effect of reducing the water drop drop collision noise at the time of the water drop drop collision with the surface of the water drop receiving plate.
Further, the spring function portion is composed of a top plate of the hood portion, the damper function portion is composed of a plate having a higher rigidity than the top plate of the hood portion, and the elastic support is composed of a leaf spring. The upper plate surface of the plate constituting the top plate and the lower plate surface of the top plate of the hood portion constituting the spring function portion are in contact with each other, and the upper plate surface of the top plate and the lower plate surface of the leaf spring constituting the elastic support are in contact with each other. The elastic support, the spring function portion, and the damper function portion are connected by a connecting means so as to be in contact with the surface.
Further, the damper function portion is characterized by being formed of a flat plate connected by a connecting means so that the upper plate surface is in contact with the lower plate surface of the top plate of the hood portion.
According to the ventilation port terminal member according to the present invention as described above, the top plate portion of the hood portion is composed of the top plate of the hood portion constituting the spring function portion and the plate constituting the damper function portion. , A ventilation port terminal that can improve the damping effect against the vibration propagated to the hood part at the time of a water drop drop collision on the water drop receiving plate, and has an excellent effect of reducing the water drop drop collision noise at the time of a water drop drop collision on the surface of the water drop receiving plate. A member is obtained.
Further, the building according to the present invention is a building in which the ventilation port terminal member is provided on the outer wall so that the hood portion and the water drop receiving plate of the ventilation port terminal member described above project outward from the outer wall surface. Since the surface of each water drop receiving plate of each ventilation port terminal member provided on the outer wall of the upper and lower floors of the ventilation port terminal member is located on a vertical line, the water drop collision with the surface of the water drop receiving plate of the ventilation port terminal member. It is possible to provide a building with an excellent effect of reducing the impact noise of falling water droplets at the time.

換気口端末部材を前側から見た斜視図。A perspective view of the ventilation port terminal member as viewed from the front side. 換気口端末部材を後側から見た斜視図。A perspective view of the ventilation port terminal member as viewed from the rear side. 換気口端末部材の分解斜視図。An exploded perspective view of the ventilation port terminal member. 換気口端末部材の水滴受板ユニット及びフード部の天板部を示す断面図。The cross-sectional view which shows the water drop receiving plate unit of a ventilation port terminal member, and the top plate part of a hood part. 建物の上下階の外壁に取付けられた上の換気口端末部材から下の換気口端末部材に水滴が落下する状態を示す図。The figure which shows the state which the water drop falls from the upper ventilation port terminal member attached to the outer wall of the upper and lower floors of a building to the lower ventilation port terminal member. ダンパー機能部を構成する板の有無及び当該板の板厚の違いによる検証実験結果を示す図であり、（ａ)は数値表、（ｂ），（ｃ）はグラフ。It is a figure which shows the verification experiment result by the presence or absence of the plate which constitutes a damper function part, and the difference in the plate thickness of the plate, (a) is a numerical table, (b), (c) are graphs.

図１乃至図５に示すように、実施形態に係る換気口端末部材１は、建物９０の外壁９１に建物９０の内外に連通するように形成された換気孔９２に挿入される筒部２（図５参照）と、建物９０の外壁面９３より建物９０の外側に突出するフード部３（図５参照）と、フード部３の天板部６に連結された弾性支持体４と、弾性支持体４に連結されてフード部３の天板部６の上方に位置するように設けられた水滴受板５とを備えた構成とした。
フード部３の天板部６は、ばね機能部７と、ダンパー機能部８とを備え、剛性が、フード部３の天板部６以外の板部の剛性よりも大きくなるように構成した。
具体的には、実施形態に係る換気口端末部材１は、ばね機能部７がフード部３の天板３２により構成され、ダンパー機能部８がフード部３の天板３２よりも剛性が大きい板８０により構成され、弾性支持体４が板ばね６０により構成され、図４に示すように、ダンパー機能部８を構成する板８０の上側板面８０ａとばね機能部７を構成するフード部３の天板３２の下側板面３２ｂとが接触し、かつ、当該天板３２の上側板面３２ａと弾性支持体４を構成する板ばね６０の下側板面６２ｂとが接触するように、当該弾性支持体４としての板ばね６０とばね機能部７としての天板３２とダンパー機能部８としての板８０とが連結手段４０により連結された構成とした。
つまり、フード部３の天板部６が、ばね機能部７を構成するフード部３の天板３２とフード部３の天板３２よりも剛性が大きいダンパー機能部８を構成する板８０とで構成されたことによって、フード部３の天板部６の剛性が、フード部３の天板部６以外の後述する前板３１、左側板３３、右側板３４、後板３５等の板部の剛性よりも大きくなるように構成した。
また、ダンパー機能部８を構成する板８０は、上側板面８０ａがフード部３の天板３２の下側板面３２ｂと接触するように連結手段４０で連結された平板により構成したとともに、当該板８０の上側板面８０ａが接触する天板３２の下側板面３２ｂは平面に形成された構成とした。
当該換気口端末部材１の筒部２、フード部３、弾性支持体４、水滴受板５、ダンパー機能部８を構成する板８０は、例えばステンレス等の金属板により形成される。
尚、本明細書においては、換気口端末部材１の上、下、左、右、前、後は、図１，図２に示した方向と定義して説明する。 As shown in FIGS. 1 to 5, the ventilation port terminal member 1 according to the embodiment is a tubular portion 2 inserted into a ventilation hole 92 formed in the outer wall 91 of the building 90 so as to communicate with the inside and outside of the building 90. (See FIG. 5), the hood portion 3 (see FIG. 5) protruding from the outer wall surface 93 of the building 90 to the outside of the building 90, the elastic support 4 connected to the top plate portion 6 of the hood portion 3, and the elastic support. The structure is provided with a water droplet receiving plate 5 which is connected to the body 4 and is provided above the top plate portion 6 of the hood portion 3.
The top plate portion 6 of the hood portion 3 includes a spring function portion 7 and a damper function portion 8, and is configured such that the rigidity is larger than the rigidity of the plate portions other than the top plate portion 6 of the hood portion 3.
Specifically, in the ventilation port terminal member 1 according to the embodiment, the spring function portion 7 is composed of the top plate 32 of the hood portion 3, and the damper function portion 8 is a plate having a higher rigidity than the top plate 32 of the hood portion 3. 80, the elastic support 4 is composed of a leaf spring 60, and as shown in FIG. 4, the upper plate surface 80a of the plate 80 constituting the damper function portion 8 and the hood portion 3 constituting the spring function portion 7. The elastic support is such that the lower plate surface 32b of the top plate 32 is in contact with the lower plate surface 32b of the top plate 32 and the lower plate surface 62b of the leaf spring 60 constituting the elastic support 4 is in contact with the upper plate surface 32a of the top plate 32. The leaf spring 60 as the body 4, the top plate 32 as the spring function portion 7, and the plate 80 as the damper function portion 8 are connected by the connecting means 40.
That is, the top plate portion 6 of the hood portion 3 is composed of the top plate 32 of the hood portion 3 constituting the spring function portion 7 and the plate 80 constituting the damper function portion 8 having a higher rigidity than the top plate 32 of the hood portion 3. Due to the configuration, the rigidity of the top plate portion 6 of the hood portion 3 is increased to the plate portions such as the front plate 31, the left side plate 33, the right side plate 34, and the rear plate 35, which will be described later, other than the top plate portion 6 of the hood portion 3. It was configured to be larger than the rigidity.
Further, the plate 80 constituting the damper function portion 8 is composed of a flat plate connected by the connecting means 40 so that the upper plate surface 80a is in contact with the lower plate surface 32b of the top plate 32 of the hood portion 3, and the plate is formed. The lower plate surface 32b of the top plate 32 with which the upper plate surface 80a of the 80 contacts is formed to be flat.
The plate 80 constituting the cylinder portion 2, the hood portion 3, the elastic support 4, the water droplet receiving plate 5, and the damper function portion 8 of the ventilation port terminal member 1 is formed of, for example, a metal plate such as stainless steel.
In this specification, the upper, lower, left, right, front, and rear of the ventilation port terminal member 1 are defined as the directions shown in FIGS. 1 and 2.

図１乃至図３に示すように、フード部３は、例えば、四角形状の前板３１と、ばね機能部７を構成する天板（上板）３２と、ダンパー機能部８を構成する板８０と、左側板３３と、右側板３４と、後板３５と、を備えた直方体函状に形成されており、下部が開口された室外側通風孔３６に形成されて、かつ、後板３５を形成する四角形状の板の中央側が開口された室内側通風孔３７に形成され、当該室内側通風孔３７の孔縁側に筒部２の一端開口縁側が接続されている。即ち、筒部２が、フード部３の後板３５に接続されて当該後板３５の後方に延長するように設けられた構成となっている。筒部２は、例えば、円筒部に形成される。
即ち、フード部３は、換気口端末部材１が換気孔９２に取付けられることによって、下部の室外側通風孔３６、及び、室内側通風孔３７を介して、建物９０の内側から建物９０の外側に、又は、建物９０の外側から建物９０の内側に空気を流通させることが可能な構成となっている。
また、室外側通風孔３６、及び、室内側通風孔３７のうち、少なくとも、一方の通風孔は、防虫対策等のためにメッシュ孔やガラリ等により形成されている。 As shown in FIGS. 1 to 3, the hood portion 3 includes, for example, a rectangular front plate 31, a top plate (upper plate) 32 constituting the spring function portion 7, and a plate 80 constituting the damper function portion 8. The left side plate 33, the right side plate 34, and the rear plate 35 are formed in a rectangular parallelepiped shape, and the rear plate 35 is formed in the outdoor ventilation hole 36 having an open lower portion. The central side of the rectangular plate to be formed is formed in the open indoor ventilation hole 37, and one end opening edge side of the tubular portion 2 is connected to the hole edge side of the indoor side ventilation hole 37. That is, the tubular portion 2 is connected to the rear plate 35 of the hood portion 3 and is provided so as to extend to the rear of the rear plate 35. The tubular portion 2 is formed in, for example, a cylindrical portion.
That is, in the hood portion 3, the ventilation port terminal member 1 is attached to the ventilation hole 92, so that the ventilation port terminal member 1 is attached to the ventilation hole 92 from the inside of the building 90 to the outside of the building 90 through the lower outdoor ventilation hole 36 and the indoor side ventilation hole 37. Or, the structure is such that air can be circulated from the outside of the building 90 to the inside of the building 90.
Further, at least one of the outdoor ventilation holes 36 and the indoor ventilation holes 37 is formed of mesh holes, louvers, etc. for insect repellent measures and the like.

換言すれば、フード部３は、四角形状の前板３１と、前板３１の板面と対向する板面を備えた後板３５と、前板３１の四角形の上辺と後板３５の四角形の上辺とを繋ぐ天板３２と、フード部３の天板３２の下側板面３２ｂと接触するように天板３２及び弾性支持体４と連結手段４０によって連結されたダンパー機能部８を構成する板８０と、前板３１の四角形の上辺の一端より下方に延長する四角形の左辺と後板３５の四角形の上辺の一端より下方に延長する左辺とを繋ぐ左側板３３と、前板３１の四角形の上辺の他端より下方に延長する四角形の右辺と後板３５の四角形の上辺の他端より下方に延長する右辺とを繋ぐ右側板３４とで構成され、そして、フード部３の天板部６が、ばね機能部７を構成する天板３２とダンパー機能部８を構成する板８０とで構成される。
当該換気口端末部材１が換気孔９２に取付けられた場合、これら前板３１と天板部６と左側板３３と右側板３４と後板３５とで囲まれた空間が、下部の室外側通風孔３６を介して室外と連通し、かつ、後板３５の室内側通風孔３７を介して室内と連通するように構成されている。 In other words, the hood portion 3 includes a quadrangular front plate 31, a rear plate 35 having a plate surface facing the plate surface of the front plate 31, and a quadrangle of the upper side of the quadrangle of the front plate 31 and the quadrangle of the rear plate 35. A plate constituting a damper function portion 8 connected by a connecting means 40 to the top plate 32 and the elastic support 4 so as to be in contact with the top plate 32 connecting the upper side and the lower plate surface 32b of the top plate 32 of the hood portion 3. The left side plate 33 connecting the 80, the left side of the quadrangle extending downward from one end of the upper side of the quadrangle of the front plate 31 and the left side extending downward from one end of the upper side of the quadrangle of the rear plate 35, and the quadrangle of the front plate 31. It is composed of a right side plate 34 connecting a right side of a quadrangle extending downward from the other end of the upper side and a right side extending downward from the other end of the upper side of the quadrangle of the rear plate 35, and a top plate portion 6 of the hood portion 3. Is composed of a top plate 32 that constitutes the spring function portion 7 and a plate 80 that constitutes the damper function portion 8.
When the ventilation port terminal member 1 is attached to the ventilation hole 92, the space surrounded by the front plate 31, the top plate portion 6, the left side plate 33, the right side plate 34, and the rear plate 35 is the lower outdoor ventilation. It is configured to communicate with the outside through the hole 36 and to communicate with the inside through the indoor ventilation hole 37 of the rear plate 35.

即ち、換気口端末部材１は、筒部２が筒部２の他端側から建物９０の外壁９１に形成された換気孔９２に挿入されて、フード部３の後板３５の後面の周辺部より後方に突出する囲み枠のように形成された設置枠３５Ａの後端縁３５ａが建物９０の外壁面９３に近接し、かつ、天板３２が上方、左側板３３が左側、右側板３４が右側に位置された状態となるように設置される。
尚、筒部２の外周面には、例えば図外の板ばねが設けられており、当該筒部２が換気孔９２内に押し込まれて当該板ばねが換気孔９２の内面にばね弾性によって押し付けられることによって、換気口端末部材１が換気孔９２に固定され、当該固定された状態で、フード部３の設置枠３５Ａの後端縁３５ａと外壁面９３との隙間にシーリング材等の隙間充填剤が充填されることにより、換気口端末部材１が換気孔９２に取付けられる（図５参照）。 That is, in the ventilation port terminal member 1, the tubular portion 2 is inserted into the ventilation hole 92 formed in the outer wall 91 of the building 90 from the other end side of the tubular portion 2, and the peripheral portion of the rear surface of the rear plate 35 of the hood portion 3 The rear end edge 35a of the installation frame 35A formed like a surrounding frame protruding further rearward is close to the outer wall surface 93 of the building 90, and the top plate 32 is above, the left side plate 33 is on the left side, and the right side plate 34 is. It is installed so that it is located on the right side.
For example, a leaf spring (not shown) is provided on the outer peripheral surface of the tubular portion 2, and the tubular portion 2 is pushed into the ventilation hole 92 and the leaf spring is pressed against the inner surface of the ventilation hole 92 by spring elasticity. By doing so, the ventilation port terminal member 1 is fixed to the ventilation hole 92, and in the fixed state, the gap between the rear end edge 35a of the installation frame 35A of the hood portion 3 and the outer wall surface 93 is filled with a gap such as a sealing material. By filling with the agent, the ventilation port end member 1 is attached to the ventilation hole 92 (see FIG. 5).

フード部３の天板３２の上に弾性支持体４を介して設けられた水滴受板５は、フード部３の天板３２の上方を覆うように配置された板材により構成される。
水滴受板５は、例えば、フード部３の天板３２の長方形よりも一回り小さい長方形状の平板により形成されて板面がフード部３の天板３２の板面と所定の間隔を隔てて平行又は略平行に対向するように配置された平板部５１と、当該平板部５１を構成する左右に長い長方形板の前後の側縁より傾斜して下るように形成された前後の傾斜板部５２，５２と、当該平板部５１を構成する左右に長い長方形板の左右の側縁より傾斜して下るように形成された左右の傾斜板部５３，５３とを備える。
平板部５１の前側縁より延長するように設けられた前側の傾斜板部５２の傾斜面はフード部３の天板３２の前側の側縁に近付くように下る傾斜面に形成され、平板部５１の後側縁より延長するように設けられた後側の傾斜板部５２の傾斜面はフード部３の天板３２の後側の側縁に近付くように下る傾斜面に形成される。
平板部５１の左側縁より延長するように設けられた左側の傾斜板部５３の傾斜面はフード部３の天板３２の左側の側縁に近付くように下る傾斜面に形成され、平板部５１の右側縁より延長するように設けられた右側の傾斜板部５３の傾斜面はフード部３の天板３２の右側の側縁に近付くように下る傾斜面に形成される（図４参照）。
即ち、平板部５１の表面５１ａ、つまり、水滴受板５の表面５１ａを形成する板面に水滴が落下した場合に、当該水滴が傾斜板部５２又は傾斜板部５３の傾斜面を介して下方に流下するように構成されている。
そして、水滴受板５は、平板部５１の表面５１ａを構成する左右に長い長方形の中心５Ｃが、フード部３の天板３２の板面と直交して当該天板３２の表面を構成する左右に長い長方形の中心を通過する垂直線Ｖ上に位置されるように、弾性支持体４を介してフード部３の天板３２の上に設けられる。 The water droplet receiving plate 5 provided on the top plate 32 of the hood portion 3 via the elastic support 4 is composed of a plate material arranged so as to cover the upper part of the top plate 32 of the hood portion 3.
The water drop receiving plate 5 is formed of, for example, a rectangular flat plate that is one size smaller than the rectangle of the top plate 32 of the hood portion 3, and the plate surface is separated from the plate surface of the top plate 32 of the hood portion 3 at a predetermined distance. A flat plate portion 51 arranged so as to face each other in parallel or substantially parallel, and a front-rear inclined plate portion 52 formed so as to be inclined down from the front-rear side edges of long rectangular plates on the left and right constituting the flat plate portion 51. 52, and left and right inclined plate portions 53, 53 formed so as to be inclined down from the left and right side edges of the rectangular plates long to the left and right constituting the flat plate portion 51.
The inclined surface of the front inclined plate portion 52 provided so as to extend from the front side edge of the flat plate portion 51 is formed on the inclined surface descending so as to approach the front side edge of the top plate 32 of the hood portion 3, and the flat plate portion 51 is formed. The inclined surface of the rear inclined plate portion 52 provided so as to extend from the rear side edge is formed on the inclined surface that descends so as to approach the rear side edge of the top plate 32 of the hood portion 3.
The inclined surface of the left inclined plate portion 53 provided so as to extend from the left edge of the flat plate portion 51 is formed as an inclined surface that descends so as to approach the left side edge of the top plate 32 of the hood portion 3. The inclined surface of the right inclined plate portion 53 provided so as to extend from the right edge of the hood portion 3 is formed as an inclined surface that descends so as to approach the right side edge of the top plate 32 of the hood portion 3 (see FIG. 4).
That is, when water droplets fall on the surface 51a of the flat plate portion 51, that is, the plate surface forming the surface 51a of the water droplet receiving plate 5, the water droplets are lowered via the inclined surface of the inclined plate portion 52 or the inclined plate portion 53. It is configured to flow down to.
In the water drop receiving plate 5, the left and right rectangular centers 5C constituting the surface 51a of the flat plate portion 51 form the surface of the top plate 32 orthogonal to the plate surface of the top plate 32 of the hood portion 3. It is provided on the top plate 32 of the hood portion 3 via the elastic support 4 so as to be located on the vertical line V passing through the center of the long rectangle.

弾性支持体４は、板ばね６０により構成されたものを使用した。
当該板ばね６０は、図３，図４に示すように、天板３２における上側板面３２ａの中央側に連結される中央板部６２と、中央板部６２の左右両方の端部からそれぞれ天板３２の上側板面３２ａと直交して水滴受板５の平板部５１に近づく方向に延長する左右の立ち上がり板部６３，６３と、左右の立ち上がり板部６３，６３の上端からそれぞれ互いに反対方向に上がって傾斜するように延長する左右の傾斜板部６４，６４と、各傾斜板部６４，６４の上端からそれぞれ互いに反対方向に延長して水滴受板５の平板部５１の下側板面５１ｂの左右両端側に連結される左右両方の端板部６１，６１とを備えた形状のものを用いた。 As the elastic support 4, one configured by the leaf spring 60 was used.
As shown in FIGS. 3 and 4, the leaf spring 60 is connected to the central plate portion 62 connected to the center side of the upper plate surface 32a of the top plate 32, and the leaf spring 60 is heavenly from both the left and right ends of the central plate portion 62, respectively. The left and right rising plate portions 63, 63 extending in a direction orthogonal to the upper plate surface 32a of the plate 32 and extending in a direction approaching the flat plate portion 51 of the water droplet receiving plate 5, and the left and right rising plate portions 63, 63, respectively, in opposite directions from the upper ends. The left and right inclined plate portions 64, 64 extending so as to rise and incline, and the lower plate surface 51b of the flat plate portion 51 of the water droplet receiving plate 5 extending in opposite directions from the upper ends of the inclined plate portions 64, 64, respectively. A shape having both left and right end plate portions 61 and 61 connected to both left and right ends of the above was used.

即ち、板ばね６０は、中央側の中央板部６２がフード部３の天板３２の上側板面３２ａの中央側に連結されて、かつ、左右両方の端部側の端板部６１，６１が水滴受板５の平板部５１の下側板面５１ｂの左右両端側に連結された板材により構成され、貫通孔Ｘは、例えば、板ばね６０の中央板部６２と端板部６１との間の部分において、板ばね６０の延長方向（左右方向）及び前後幅方向に延長する矩形状の孔により構成されている。
具体的には、図３に示すように、貫通孔Ｘは、板ばね６０の延長方向に沿って左の立ち上がり板部６３及び傾斜板部６４の全域に亘って延長する左の貫通孔Ｘと、板ばね６０の延長方向に沿って右の立ち上がり板部６３及び傾斜板部６４の全域に亘って延長する右の貫通孔Ｘとにより構成される。
また、左の貫通孔Ｘ及び右の貫通孔Ｘは、立ち上がり板部６３及び傾斜板部６４の前後幅方向の中央側に設けられる。換言すれば、左の貫通孔Ｘ及び右の貫通孔Ｘの前後に位置される立ち上がり板部６３及び傾斜板部６４の前後方向の板幅は等しくなるように形成されている。 That is, in the leaf spring 60, the central plate portion 62 on the center side is connected to the center side of the upper plate surface 32a of the top plate 32 of the hood portion 3, and the end plate portions 61, 61 on both the left and right end sides are connected. Is composed of plate materials connected to the left and right ends of the lower plate surface 51b of the flat plate portion 51 of the water drop receiving plate 5, and the through hole X is formed between, for example, the central plate portion 62 and the end plate portion 61 of the leaf spring 60. The portion is composed of a rectangular hole extending in the extension direction (left-right direction) and the front-rear width direction of the leaf spring 60.
Specifically, as shown in FIG. 3, the through hole X is the left through hole X extending over the entire area of the left rising plate portion 63 and the inclined plate portion 64 along the extension direction of the leaf spring 60. It is composed of a right rising plate portion 63 and a right through hole X extending over the entire area of the inclined plate portion 64 along the extending direction of the leaf spring 60.
Further, the left through hole X and the right through hole X are provided on the center side of the rising plate portion 63 and the inclined plate portion 64 in the front-rear width direction. In other words, the rising plate portions 63 and the inclined plate portions 64 located in front of and behind the left through hole X and the right through hole X are formed so that the plate widths in the front-rear direction are equal.

例えば図３，図４に示すように、水滴受板５の平板部５１の左右両端側、弾性支持体４を形成する板ばね６０の中央板部６２及び左右の端板部６１，６１、フード部３の天板３２の中央側及びダンパー機能部８を構成する板８０の中央側には、ボルト４１を通すためのボルト挿通孔４５が形成されている。 For example, as shown in FIGS. 3 and 4, the left and right ends of the flat plate portion 51 of the water droplet receiving plate 5, the central plate portion 62 of the leaf spring 60 forming the elastic support 4, the left and right end plate portions 61, 61, and the hood. A bolt insertion hole 45 for passing the bolt 41 is formed on the center side of the top plate 32 of the portion 3 and the center side of the plate 80 constituting the damper function portion 8.

即ち、実施形態に係る換気口端末部材１は、図３に示すように、弾性支持体４を、貫通孔Ｘが形成された板ばね６０により構成し、当該板ばね６０の中央板部６２の中心と天板３２の上側板面３２ａの中心とを一致させた状態で当該中央板部６２と天板３２と当該天板３２の下側板面３２ｂに設置されたダンパー機能部８を構成する板８０とが１組以上の連結手段４０により連結されたとともに（図４参照）、当該天板３２と板８０とで構成された天板部６に連結された板ばね６０の中央板部６２よりも上方に位置された板ばね６０の左右両方の端板部６１，６１と水滴受板５の平板部５１の左右両端側とが連結手段４０により連結された構成とした（図４参照）。 That is, in the ventilation port terminal member 1 according to the embodiment, as shown in FIG. 3, the elastic support 4 is composed of a leaf spring 60 having a through hole X formed therein, and the central plate portion 62 of the leaf spring 60 is formed. A plate constituting the damper function portion 8 installed on the central plate portion 62, the top plate 32, and the lower plate surface 32b of the top plate 32 in a state where the center and the center of the upper plate surface 32a of the top plate 32 are aligned with each other. From the central plate portion 62 of the leaf spring 60 connected to the top plate portion 6 composed of the top plate 32 and the plate 80 while the 80 is connected by one or more sets of connecting means 40 (see FIG. 4). The left and right end plate portions 61 and 61 of the leaf spring 60 located above and the left and right end plates 51 of the flat plate portion 51 of the water drop receiving plate 5 are connected by the connecting means 40 (see FIG. 4).

図３に示すように、例えば、弾性支持体４を構成する板ばね６０の左右の両端側の端板部６１，６１の上側板面６１ａ，６１ａに水滴受板５の平板部５１を配置する。
そして、左端側の端板部６１、水滴受板５の平板部５１の左端側に形成された各ボルト挿通孔４５，４５の中心を一致させるとともに、右端側の端板部６１、水滴受板５の平板部５１の右端側に形成された各ボルト挿通孔４５，４５の中心を一致させた後に、左側の各ボルト挿通孔４５，４５、及び、右側の各ボルト挿通孔４５，４５に、上方からそれぞれボルト４１を貫通させ、当該各ボルト４１，４１の下端側（ボルト先端側）にそれぞれナット４２を締結する。
以上により、弾性支持体４と水滴受板５とが連結手段４０により連結された水滴受板ユニットが構成される（図４参照）。
そして、当該水滴受板ユニットにおける弾性支持体４の中央側の中央板部６２、フード部３の天板部６（天板３２及び板８０）に形成された各ボルト挿通孔４５，４５…の中心を一致させた後に、これら各ボルト挿通孔４５，４５…に、下方からそれぞれボルト４１を貫通させ、当該各ボルト４１，４１の上端側（ボルト先端側）にそれぞれナット４２を締結する。
以上により、フード部３の天板部６の上に弾性支持体４を介して支持された水滴受板５を備えた実施形態１の換気口端末部材１が構成されることになる。
尚、連結手段４０は、ボルト挿通孔４５、ボルト４１及びナット４２により構成すればよいが、図４に示すように、中央板部６２の上面とナット４２との間、端板部６１の下面とナット４２との間には、例えば、平座金４３及びばね座金４４が設置されることが好ましい。 As shown in FIG. 3, for example, the flat plate portion 51 of the water drop receiving plate 5 is arranged on the upper plate surfaces 61a, 61a of the end plate portions 61, 61 on the left and right ends of the leaf spring 60 constituting the elastic support 4. ..
Then, the center of each bolt insertion hole 45, 45 formed on the left end side of the end plate portion 61 on the left end side and the flat plate portion 51 of the water drop receiving plate 5 is aligned, and the end plate portion 61 on the right end side and the water drop receiving plate are aligned. After aligning the centers of the bolt insertion holes 45, 45 formed on the right end side of the flat plate portion 51 of 5, the bolt insertion holes 45, 45 on the left side and the bolt insertion holes 45, 45 on the right side are formed. The bolt 41 is passed through from above, and the nut 42 is fastened to the lower end side (bolt tip side) of each of the bolts 41 and 41.
As described above, the water droplet receiving plate unit in which the elastic support 4 and the water droplet receiving plate 5 are connected by the connecting means 40 is configured (see FIG. 4).
Then, the bolt insertion holes 45, 45 ... Formed in the central plate portion 62 on the center side of the elastic support 4 in the water droplet receiving plate unit and the top plate portion 6 (top plate 32 and plate 80) of the hood portion 3 After aligning the centers, the bolts 41 are passed through the bolt insertion holes 45, 45 ... From below, and the nuts 42 are fastened to the upper ends (bolt tip sides) of the bolts 41, 41, respectively.
As described above, the ventilation port terminal member 1 of the first embodiment is configured in which the water droplet receiving plate 5 supported by the elastic support 4 is provided on the top plate portion 6 of the hood portion 3.
The connecting means 40 may be composed of a bolt insertion hole 45, a bolt 41 and a nut 42, but as shown in FIG. 4, between the upper surface of the central plate portion 62 and the nut 42, and the lower surface of the end plate portion 61. For example, a flat washer 43 and a spring washer 44 are preferably installed between the nut 42 and the nut 42.

そして、図５に示すように、上下階の外壁９１，９１に、フード部３及び水滴受板５が外壁面９３より外側に突出するように実施形態１の各換気口端末部材１，１が設けられ、各換気口端末部材１，１の各水滴受板５，５の平板部５１，５１の表面５１ａ，５１ａの中心５Ｃ，５Ｃが、垂直線Ｖ上に位置された建物９０が構成される。
当該建物９０においては、上階に取付けられた換気口端末部材１のフード部３の板面を伝って下方に流れてくる水Ｗが下階に取付けられた換気口端末部材１の水滴受板５の平板部５１の表面５１ａに落下する。 Then, as shown in FIG. 5, the ventilation port terminal members 1 and 1 of the first embodiment are provided on the outer walls 91 and 91 of the upper and lower floors so that the hood portion 3 and the water droplet receiving plate 5 project outward from the outer wall surface 93. A building 90 is configured in which the centers 5C and 5C of the surfaces 51a and 51a of the flat plate portions 51 and 51 of the water droplet receiving plates 5 and 5 of the ventilation port terminal members 1 and 1 are located on the vertical line V. To.
In the building 90, the water W flowing downward along the plate surface of the hood portion 3 of the ventilation port terminal member 1 mounted on the upper floor is the water drop receiving plate of the ventilation port terminal member 1 mounted on the lower floor. It falls on the surface 51a of the flat plate portion 51 of 5.

本発明の換気口端末部材１の水滴落下衝突音低減効果を確認するための実験を以下のように行った。 An experiment for confirming the effect of reducing the water droplet falling collision sound of the ventilation port terminal member 1 of the present invention was carried out as follows.

・実験方法
換気口端末部材の各試験体Ａ～Ｆ（図６参照）を製作し、これら換気口端末部材の各試験体Ａ～Ｆの水滴受板５の上面（平板部５１の表面５１ａ）に水滴が落下する状況を模擬した実験を簡易無響室内で行った。
実験設備は以下のとおりである。
足場の下部に内径９００ｍｍ角の箱（内部をグラスウールで吸音処理した箱）を設置し、箱の正面中央の位置の外側に換気口端末部材の試験体を設置するとともに、内側にレジスター（内側換気口）を設置した。レジスターは樹脂製のプッシュタイプとし、実験時は「開」の状態とした。
共同住宅の一般的な階高を想定し、換気口端末部材の水滴受板の上面に高さ３ｍの位置からスポイトを使って水滴を落下させた。
水滴落下衝突音の測定は、マイクロホンを箱内部の中心の位置に設置し、水滴落下衝突音の１／３オクターブバンド中心周波数音圧レベルを測定した。各試験体の水滴受板の上面への水滴の落下回数は、１試験体に対し５０回とし、外部からの影響の小さい４０回のデータの平均値を測定値とした。 -Experimental method Each test body A to F (see FIG. 6) of the ventilation port terminal member was manufactured, and the upper surface of the water drop receiving plate 5 of each test body A to F of these ventilation port terminal members (surface 51a of the flat plate portion 51). An experiment simulating the situation where water droplets fall was conducted in a simple soundless room.
The experimental equipment is as follows.
A box with an inner diameter of 900 mm square (a box whose inside is sound-absorbed with glass wool) is installed at the bottom of the scaffold, and a test piece of the ventilation port terminal member is installed outside the position in the center of the front of the box, and a register (inside ventilation) is installed inside. Mouth) was installed. The register was a push type made of resin, and was set to the "open" state at the time of the experiment.
Assuming the general floor height of an apartment house, water droplets were dropped on the upper surface of the water droplet receiving plate of the ventilation port terminal member from a height of 3 m using a dropper.
For the measurement of the water drop drop collision sound, a microphone was installed at the center position inside the box, and the 1/3 octave band center frequency sound pressure level of the water drop drop collision sound was measured. The number of times the water droplets fell on the upper surface of the water droplet receiving plate of each test piece was 50 times for one test piece, and the average value of the data of 40 times with little influence from the outside was taken as the measured value.

以下のような試験体Ａ，Ｂ，Ｃ，Ｄ，Ｅ，Ｆを用いて実験を行った。
（１）試験体Ａ，Ｂ，Ｃ（筒部の開口径φ＝１５０ｍｍ）
・試験体Ａ＝板８０を備えない構成の換気口端末部材
・試験体Ｂ＝板厚１．５ｍｍの板８０を備えた構成の換気口端末部材
・試験体Ｃ＝板厚１．２ｍｍの板８０を備えた構成の換気口端末部材
（２）試験体Ｄ，Ｅ，Ｆ（筒部の開口径φ＝１００ｍｍ）
・試験体Ｄ＝板８０を備えない構成の換気口端末部材
・試験体Ｅ＝板厚１．５ｍｍの板８０を備えた構成の換気口端末部材
・試験体Ｆ＝板厚１．２ｍｍの板８０を備えた構成の換気口端末部材 Experiments were conducted using the following test specimens A, B, C, D, E, and F.
(1) Specimens A, B, C (opening diameter φ of cylinder φ = 150 mm)
-Test body A = Ventilation port terminal member without plate 80-Test body B = Ventilation port end member with plate 80 with plate thickness 1.5 mm-Test body C = Plate with plate thickness 1.2 mm Ventilation port terminal member having a configuration provided with 80 (2) Specimens D, E, F (opening diameter φ = 100 mm of the cylinder)
-Test body D = Ventilation port terminal member without plate 80-Test body E = Ventilation port end member with plate 80 with plate thickness 1.5 mm-Test body F = Plate with plate thickness 1.2 mm Ventilation port terminal member configured with 80

尚、実験に用いた換気口端末部材の試験体Ａ，Ｂ，Ｃ，Ｄ，Ｅ，Ｆの諸元は、以下の通りである。
・換気口端末部材の筒部、フード部、水滴受板、弾性支持体の材質＝ステンレス鋼ＳＵＳ３０４。
（１）試験体Ａ，Ｂ，Ｃ
・フード部の左右幅寸法＝２００ｍｍ、フード部の上下高さ寸法＝２００ｍｍ、フード部の前後幅寸法＝９３ｍｍ。
・筒部の開口径寸法＝１５０ｍｍ、筒部の前後幅寸法＝４７ｍｍ。
・水滴受板の前後幅寸法＝８６ｍｍ、水滴受板の平板部の前後幅寸法（短辺寸法）＝７５ｍｍ、水滴受板の平板部の左右幅幅寸法（長辺寸法）＝２００ｍｍ、水滴受板の板厚寸法＝１．５ｍｍ。
・弾性支持体としての板ばねの左右幅寸法＝１６４ｍｍ、板ばねの前後幅寸法＝５０ｍｍ、板ばねの中央板部の左右幅寸法＝９０ｍｍ、板ばねの中央板部から端板部までの高さ寸法＝１０ｍｍ。
・板８０の左右長寸法＝１８４ｍｍ、板８０の前後長寸法＝５５ｍｍ。
（２）試験体Ｄ，Ｅ，Ｆ
・フード部の左右幅寸法＝１５０ｍｍ、フード部の上下高さ寸法＝１５０ｍｍ、フード部の前後幅寸法＝７３ｍｍ。
・筒部の開口径寸法＝１００ｍｍ、筒部の前後幅寸法＝４７ｍｍ。
・水滴受板の前後幅寸法＝６７ｍｍ、水滴受板の平板部の前後幅寸法（短辺寸法）＝５７ｍｍ、水滴受板の平板部の左右幅幅寸法（長辺寸法）＝１５０ｍｍ、水滴受板の板厚寸法＝１．５ｍｍ。
・弾性支持体としての板ばねの左右幅寸法＝１２４ｍｍ、板ばねの前後幅寸法＝４０ｍｍ、板ばねの中央板部の左右幅寸法＝５０ｍｍ、板ばねの中央板部から端板部までの高さ寸法＝１０ｍｍ。
・板８０の左右長寸法＝１３４ｍｍ、板８０の前後長寸法＝３８ｍｍ。 The specifications of the test bodies A, B, C, D, E, and F of the ventilation port terminal member used in the experiment are as follows.
-Material of the cylinder part, hood part, water drop receiving plate, and elastic support of the ventilation port terminal member = stainless steel SUS304.
(1) Specimens A, B, C
-Left and right width dimension of the hood part = 200 mm, vertical height dimension of the hood part = 200 mm, front and rear width dimension of the hood part = 93 mm.
-Cylinder opening diameter dimension = 150 mm, tubular portion front-rear width dimension = 47 mm.
-Front and rear width dimension of the water drop receiving plate = 86 mm, front and rear width dimension (short side dimension) of the flat plate portion of the water droplet receiving plate = 75 mm, left and right width width dimension (long side dimension) of the flat plate portion of the water droplet receiving plate = 200 mm, water droplet receiver Plate thickness dimension = 1.5 mm.
The left-right width dimension of the leaf spring as an elastic support = 164 mm, the front-back width dimension of the leaf spring = 50 mm, the left-right width dimension of the center plate portion of the leaf spring = 90 mm, the height from the center plate portion to the end plate portion of the leaf spring. Dimensions = 10 mm.
The left-right length of the plate 80 is 184 mm, and the front-rear length of the plate 80 is 55 mm.
(2) Specimens D, E, F
-Left and right width dimension of the hood part = 150 mm, vertical height dimension of the hood part = 150 mm, front and rear width dimension of the hood part = 73 mm.
-Cylinder opening diameter dimension = 100 mm, tubular portion front-rear width dimension = 47 mm.
-Front and rear width dimension of the water drop receiving plate = 67 mm, front and rear width dimension (short side dimension) of the flat plate portion of the water droplet receiving plate = 57 mm, left and right width width dimension (long side dimension) of the flat plate portion of the water droplet receiving plate = 150 mm, water droplet receiver Plate thickness dimension = 1.5 mm.
The left-right width dimension of the leaf spring as an elastic support = 124 mm, the front-back width dimension of the leaf spring = 40 mm, the left-right width dimension of the center plate portion of the leaf spring = 50 mm, the height from the center plate portion to the end plate portion of the leaf spring. Dimensions = 10 mm.
-The left-right length of the plate 80 = 134 mm, and the front-back length of the plate 80 = 38 mm.

試験体Ａ，Ｂ，Ｃ，Ｄ，Ｅ，Ｆによる実験結果、即ち、フード部の大きさの違い、ダンパー機能部８を構成する板８０の有無、板８０の板厚の違いによる検証実験結果を図６（ａ）～（ｃ）に示す。
実験結果から明らかなように、ダンパー機能部８を構成する板８０を備えた試験体Ｂ，Ｃ，Ｅ，Ｆでは、ダンパー機能部８を構成する板８０を備えない試験体Ａ，Ｄと比べて、特に中高周波数帯域において、水滴受板の表面に対する水滴落下衝突時の音圧レベルが低下しており、水滴落下衝突音の低減効果に優れた換気口端末部材となることがわかった。 Experimental results by test bodies A, B, C, D, E, F, that is, verification experiment results by the difference in the size of the hood portion, the presence or absence of the plate 80 constituting the damper function portion 8, and the difference in the plate thickness of the plate 80. Is shown in FIGS. 6 (a) to 6 (c).
As is clear from the experimental results, the test bodies B, C, E, and F provided with the plate 80 constituting the damper function unit 8 are compared with the test bodies A and D not provided with the plate 80 constituting the damper function unit 8. It was found that the sound pressure level at the time of a water drop drop collision with the surface of the water drop receiving plate is lowered, especially in the middle and high frequency band, and the ventilation port terminal member is excellent in the effect of reducing the water drop drop collision sound.

特に、筒部の開口径が大きい場合（φ１５０ｍｍ）は、フード部の大きさ、ひいては、フード部の天板の大きさも大きくなるため、フード部の天板の剛性が小さくなる。従って、筒部の開口径が大きくて、ダンパー機能部８を構成する板８０を備えない構成の試験体Ａによれば、天板が振動しやすくなって、水滴受板の表面に対する水滴落下衝突時における中高周波数帯域の音圧レベルが高くなる傾向が見られる。
一方、筒部の開口径が大きくても、特に、板厚１．５ｍｍの板８０を備えた構成の試験体Ｂによれば、試験体Ａと比べて、６３０Ｈｚ～１ｋＨｚの帯域の音圧レベルが顕著に低くなっており、水滴落下衝突音の低減効果に優れた換気口端末部材となることが判明した。
また、筒部の開口径が大きくて厚さ１．２ｍｍの板８０を備えた構成の試験体Ｃであっても、試験体Ａと比べて、特に６３０Ｈｚ帯域の音圧レベルが顕著に低くなっており、水滴落下衝突音の低減効果に優れた換気口端末部材となることがわかった。 In particular, when the opening diameter of the tubular portion is large (φ150 mm), the size of the hood portion and, by extension, the size of the top plate of the hood portion are also large, so that the rigidity of the top plate of the hood portion is reduced. Therefore, according to the test body A having a large opening diameter of the cylinder portion and not having the plate 80 constituting the damper function portion 8, the top plate tends to vibrate and the water droplet falls and collides with the surface of the water droplet receiving plate. There is a tendency for the sound pressure level in the mid-high frequency band to increase.
On the other hand, even if the opening diameter of the tubular portion is large, in particular, according to the test body B having the plate 80 having a plate thickness of 1.5 mm, the sound pressure level in the band of 630 Hz to 1 kHz is higher than that of the test body A. It was found that the ventilation port terminal member has an excellent effect of reducing the impact noise of falling water droplets.
Further, even in the test body C having a plate 80 having a large opening diameter of the cylinder and a thickness of 1.2 mm, the sound pressure level in the 630 Hz band is significantly lower than that of the test body A. It was found that the ventilation port terminal member has an excellent effect of reducing the sound of water droplets falling and colliding.

また、筒部の開口径が小さい場合（φ１００ｍｍ）でも、板８０を備えた構成の試験体Ｅ，Ｆによれば、板８０を備えない構成の試験体Ｄと比べて、４００Ｈｚ～８００Ｈｚの帯域の音圧レベルが低くなっており、水滴落下衝突音の低減効果に優れた換気口端末部材となることがわかった。 Further, even when the opening diameter of the cylinder portion is small (φ100 mm), according to the test bodies E and F having the structure provided with the plate 80, the band of 400 Hz to 800 Hz is compared with the test body D having the structure not provided with the plate 80. It was found that the sound pressure level of the ventilation port is low, and the ventilation port terminal member has an excellent effect of reducing the impact sound of falling water droplets.

以上のように、実験結果からは、特に、筒部の開口径が大きくてフード部の天板の剛性が小さくなる換気口端末部材において、板８０を備えた構成の換気口端末部材とすることが好ましいことが判明した。 As described above, from the experimental results, in particular, in the ventilation port terminal member having a large opening diameter of the cylinder portion and a small rigidity of the top plate of the hood portion, the ventilation port terminal member having the plate 80 is used. Turned out to be preferable.

尚、フード部を構成する板として、板厚を厚くした剛性の大きい板を用いた構成として、弾性支持体４をばね機能部として機能させた構成とした場合、フード部の材料コストが増えるとともに、換気口端末部材が重くなるので、商品としての軽量化が図れず、好ましくない。
そこで、本発明の実施形態によれば、フード部３を構成する板として、板厚の薄い板を用いた構成として、フード部３の材料コストを減らすことができるとともに、換気口端末部材１の軽量化が図れ、かつ、フード部３の天板３２をばね機能部として機能させて、当該天板３２よりも剛性が大きくて当該天板３２の下側板面３２ｂに接触するように設けられた板８０をダンパー機能部として機能させた構成としたことによって、水滴受板５への水滴落下衝突時においてフード部３に伝搬してきた振動に対するダンピング効果を向上できて、水滴受板５の表面５１ａに対する水滴落下衝突時における水滴落下衝突音の低減効果に優れた換気口端末部材１を得ることできるようにした。 If the elastic support 4 is made to function as a spring function portion by using a plate having a large thickness and a high rigidity as a plate constituting the hood portion, the material cost of the hood portion increases and the material cost of the hood portion increases. Since the ventilation port terminal member becomes heavy, it is not possible to reduce the weight as a commercial product, which is not preferable.
Therefore, according to the embodiment of the present invention, the material cost of the hood portion 3 can be reduced by using a plate having a thin plate thickness as the plate constituting the hood portion 3, and the ventilation port terminal member 1 can be used. The weight can be reduced, and the top plate 32 of the hood portion 3 is provided to function as a spring function portion so as to have a higher rigidity than the top plate 32 and come into contact with the lower plate surface 32b of the top plate 32. By making the plate 80 function as a damper function portion, it is possible to improve the damping effect against the vibration propagating to the hood portion 3 at the time of a water droplet drop collision with the water droplet receiving plate 5, and the surface 51a of the water droplet receiving plate 5 can be improved. It has become possible to obtain a ventilation port terminal member 1 having an excellent effect of reducing the sound of a water drop drop collision at the time of a water drop drop collision.

実施形態に係る換気口端末部材１によれば、水滴受板５の表面５１ａに対する水滴落下衝突時における水滴落下衝突音の低減効果に優れた換気口端末部材１を提供できる。
また、実施形態に係る換気口端末部材１を備えた建物によれば、換気口端末部材１の水滴受板５の表面５１ａに対する水滴落下衝突時における水滴落下衝突音の低減効果に優れた建物を提供できる。 According to the ventilation port terminal member 1 according to the embodiment, it is possible to provide the ventilation port terminal member 1 having an excellent effect of reducing the sound of the water drop drop collision at the time of the water drop drop collision with the surface 51a of the water drop receiving plate 5.
Further, according to the building provided with the ventilation port terminal member 1 according to the embodiment, the building having an excellent effect of reducing the water drop drop collision sound at the time of the water drop drop collision with the surface 51a of the water drop receiving plate 5 of the ventilation port terminal member 1 is provided. Can be provided.

尚、本発明の換気口端末部材においては、フード部の天板部は、フード部の天板に上下方向の凹凸を形成した構成としてもよい。この場合、フード部の天板に形成された凸部（リブ）における頂部横板の上側板面に弾性支持体を連結した構成とすることにより、当該凸部（リブ）の頂部横板がばね機能部として機能するとともに、当該凸部（リブ）の頂部横板とフード部の天板に形成された凹部の底部横板との間の縦板（壁板）及び凹部の底部横板とがダンパー機能部として機能するフード部の天板部が構成されるので、水滴受板の表面に対する水滴落下衝突時における水滴落下衝突音の低減効果に優れた換気口端末部材を提供できる。 In the ventilation port terminal member of the present invention, the top plate portion of the hood portion may have a configuration in which unevenness in the vertical direction is formed on the top plate portion of the hood portion. In this case, the elastic support is connected to the upper plate surface of the top horizontal plate in the convex portion (rib) formed on the top plate of the hood portion, so that the top horizontal plate of the convex portion (rib) is a spring. In addition to functioning as a functional part, the vertical plate (wall plate) between the top horizontal plate of the convex portion (rib) and the bottom horizontal plate of the concave portion formed on the top plate of the hood portion and the bottom horizontal plate of the concave portion are formed. Since the top plate portion of the hood portion that functions as the damper function portion is configured, it is possible to provide a ventilation port terminal member having an excellent effect of reducing the sound of the water droplet drop collision at the time of the water droplet drop collision with the surface of the water droplet receiving plate.

また、本発明の換気口端末部材においては、フード部の天板部は、ばね機能部として機能させるフード部の天板を平板により形成するとともに、当該平板により形成された天板の下側板面と接触するように設けられてダンパー機能部として機能する板として、平板以外の例えば、波板、凹凸板等の板を用いても構わない。 Further, in the ventilation port terminal member of the present invention, the top plate portion of the hood portion is formed by forming the top plate of the hood portion that functions as a spring function portion by a flat plate, and the lower plate surface of the top plate formed by the flat plate. As a plate that is provided so as to come into contact with and functions as a damper function portion, a plate other than a flat plate, for example, a corrugated plate, an uneven plate, or the like may be used.

また、本発明の換気口端末部材は、フード部の天板部を、フード部の天板部以外の板部の板厚よりも板厚の厚い天板で構成することにより、フード部の天板部の剛性が、フード部の天板部以外の板部の剛性よりも大きくなるように構成された換気口端末部材であってもよい。
当該換気口端末部材であっても、フード部の天板部を構成する板厚の厚い天板がダンパー機能部として機能するとともに、弾性支持体がばね機能部として機能するので、水滴受板への水滴落下衝突時においてフード部に伝搬してきた振動に対するダンピング効果を向上できて、水滴受板の表面に対する水滴落下衝突時における水滴落下衝突音の低減効果に優れた換気口端末部材を得ることができる。 Further, in the ventilation port terminal member of the present invention, the top plate portion of the hood portion is formed of a top plate having a thickness thicker than that of the plate portion other than the top plate portion of the hood portion, whereby the top plate portion of the hood portion is formed. The ventilation port terminal member may be configured so that the rigidity of the plate portion is larger than the rigidity of the plate portion other than the top plate portion of the hood portion.
Even in the case of the ventilation port terminal member, the thick top plate constituting the top plate portion of the hood portion functions as a damper function portion, and the elastic support functions as a spring function portion. It is possible to improve the damping effect against the vibration propagated to the hood part at the time of the water drop drop collision, and to obtain a ventilation port terminal member having an excellent effect of reducing the water drop drop collision noise at the time of the water drop drop collision with the surface of the water drop receiving plate. can.

また、本発明においては、換気口端末部材１の全体形状は丸形でもよい。
また、換気口端末部材１のフード部３の天板３２や水滴受板５の形状は矩形でなくてもよい。
また、換気口端末部材１は、開口部が、フード部３の下部のみでなく、フード部３の側面、正面に設けられた構成であってもよい。また、開口部にネットが張られた構成のものであってもよい。
また、換気口端末部材１は、筒部２を備えずに、外壁に直接取り付けられる構成のものであってもよい。 Further, in the present invention, the overall shape of the ventilation port terminal member 1 may be round.
Further, the shape of the top plate 32 and the water drop receiving plate 5 of the hood portion 3 of the ventilation port terminal member 1 does not have to be rectangular.
Further, the ventilation port terminal member 1 may have an opening provided not only in the lower part of the hood portion 3 but also in the side surface and the front surface of the hood portion 3. Further, the structure may be such that a net is stretched in the opening.
Further, the ventilation port terminal member 1 may be configured to be directly attached to the outer wall without providing the tubular portion 2.

また、弾性支持体４（板ばね６０）の貫通孔Ｘは、弾性支持体４におけるフード部３の天板３２及び水滴受板５と接していない部分に、例えば、弾性支持体４の中心を基準として、前後左右に均等に設けられていればよく、個数、形状等は、特に限定されない。
例えば、貫通孔Ｘは、板状の弾性支持体４の延長方向に沿って延長する複数の長孔（スリット）が板状の弾性支持体４の板幅方向に沿って所定間隔を隔てて並ぶように形成された構成、あるいは、板状の弾性支持体４の板幅方向に沿って延長する複数の長孔（スリット）が板状の弾性支持体４の延長方向に沿って所定間隔を隔てて並ぶように形成された構成、あるいは、円孔や矩形孔等の複数の個別孔が板状の弾性支持体４の延長方向に沿って所定間隔を隔てて並ぶように形成された構成、円孔や矩形孔等の複数の個別孔が板状の弾性支持体４にパンチングメタルのようにランダムに形成された構成等であってもよい。 Further, the through hole X of the elastic support 4 (leaf spring 60) has, for example, the center of the elastic support 4 in a portion of the elastic support 4 that is not in contact with the top plate 32 and the water drop receiving plate 5. As a reference, it may be provided evenly in the front, back, left and right, and the number, shape, etc. are not particularly limited.
For example, in the through hole X, a plurality of elongated holes (slits) extending along the extension direction of the plate-shaped elastic support 4 are arranged at predetermined intervals along the plate width direction of the plate-shaped elastic support 4. A plurality of elongated holes (slits) extending along the plate width direction of the plate-shaped elastic support 4 are spaced apart from each other along the extending direction of the plate-shaped elastic support 4. A structure formed so as to be lined up, or a structure formed so that a plurality of individual holes such as circular holes and rectangular holes are arranged at predetermined intervals along the extension direction of the plate-shaped elastic support 4. A plurality of individual holes such as holes and rectangular holes may be randomly formed on the plate-shaped elastic support 4 like a punching metal.

１ 換気口端末部材、３ フード部、４ 弾性支持体、５ 水滴受板、
６ フード部の天板部、７ ばね機能部、８ ダンパー機能部、
３２ フード部の天板（ばね機能部）、６０ 板ばね（弾性支持体）、
８０ 板（ダンパー機能部）、９０ 建物、９１ 外壁、
９２ 換気孔、９３ 外壁面。 1 Ventilation port terminal member, 3 Hood part, 4 Elastic support, 5 Water drop receiving plate,
6 Top plate of hood, 7 Spring function, 8 Damper function,
32 Top plate (spring function part) of the hood part, 60 leaf spring (elastic support),
80 boards (damper function part), 90 buildings, 91 outer walls,
92 ventilation holes, 93 outer walls.

Claims (5)

建物の外壁に形成された換気孔に取付けられる換気口端末部材であって、
建物の外壁面より建物の外側に突出するフード部と、フード部の天板部に連結された弾性支持体と、弾性支持体に連結されてフード部の天板部の上方に位置するように設けられた水滴受板とを備え、
フード部の天板部の剛性が、フード部の天板部以外の板部の剛性よりも大きいことを特徴とする換気口端末部材。 It is a ventilation port terminal member attached to a ventilation hole formed in the outer wall of a building.
The hood part that protrudes from the outer wall surface of the building to the outside of the building, the elastic support connected to the top plate part of the hood part, and the elastic support connected to the elastic support part so as to be located above the top plate part of the hood part. Equipped with a water drop receiving plate provided
A ventilation port terminal member characterized in that the rigidity of the top plate portion of the hood portion is greater than the rigidity of the plate portions other than the top plate portion of the hood portion. フード部の天板部は、ばね機能部と、ダンパー機能部とを備えたことを特徴とする請求項１に記載の換気口端末部材。 The ventilation port terminal member according to claim 1, wherein the top plate portion of the hood portion includes a spring function portion and a damper function portion. ばね機能部は、フード部の天板により構成され、
ダンパー機能部は、フード部の天板よりも剛性が大きい板により構成され、
弾性支持体は、板ばねにより構成され、
ダンパー機能部を構成する板の上側板面とばね機能部を構成するフード部の天板の下側板面とが接触し、かつ、当該天板の上側板面と弾性支持体を構成する板ばねの下側板面とが接触するように、当該弾性支持体とばね機能部とダンパー機能部とが連結手段により連結されたことを特徴とする請求項２に記載の換気口端末部材。 The spring function part is composed of the top plate of the hood part.
The damper function part is composed of a plate with higher rigidity than the top plate of the hood part.
The elastic support is composed of leaf springs and is composed of leaf springs.
A leaf spring in which the upper plate surface of the plate constituting the damper function portion and the lower plate surface of the top plate of the hood portion constituting the spring function portion are in contact with each other, and the upper plate surface of the top plate and the elastic support are formed. The ventilation port terminal member according to claim 2, wherein the elastic support, the spring function portion, and the damper function portion are connected by a connecting means so that the lower plate surface is in contact with the elastic support. ダンパー機能部は、上側板面がフード部の天板の下側板面と接触するように連結手段で連結された平板により構成されたことを特徴とする請求項３に記載の換気口端末部材。 The ventilation port terminal member according to claim 3, wherein the damper function portion is composed of a flat plate connected by a connecting means so that the upper plate surface is in contact with the lower plate surface of the top plate of the hood portion. 請求項１乃至請求項４のいずれか一項に記載された換気口端末部材のフード部及び水滴受板が外壁面よりも外側に突出するように当該換気口端末部材が外壁に設けられた建物であって、
建物の上下階の外壁に設けられた各換気口端末部材の各水滴受板の表面が、垂直線上に位置されたことを特徴とする建物。 A building in which the ventilation port terminal member is provided on the outer wall so that the hood portion and the water droplet receiving plate of the ventilation port terminal member according to any one of claims 1 to 4 project outward from the outer wall surface. And
A building characterized in that the surface of each water drop receiving plate of each ventilation port terminal member provided on the outer wall of the upper and lower floors of the building is located on a vertical line.
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JP5258712B2 (en) 2009-09-10 2013-08-07 三菱電機株式会社 Ventilation hood
JP2011190971A (en) 2010-03-12 2011-09-29 Mitsubishi Electric Corp Ventilation hood
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JP6900614B2 (en) 2017-11-16 2021-07-07 マツ六株式会社 Outdoor hood for ventilation
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