JP2018132265A - Ventilation sleeve and ventilation duct device - Google Patents

Ventilation sleeve and ventilation duct device Download PDF

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JP2018132265A
JP2018132265A JP2017027176A JP2017027176A JP2018132265A JP 2018132265 A JP2018132265 A JP 2018132265A JP 2017027176 A JP2017027176 A JP 2017027176A JP 2017027176 A JP2017027176 A JP 2017027176A JP 2018132265 A JP2018132265 A JP 2018132265A
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sleeve
ventilation
end plate
ventilation duct
outdoor side
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JP6867186B2 (en
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淳一郎 久野木
Junichiro Kunoki
淳一郎 久野木
究 齊藤
Kiwamu Saito
究 齊藤
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Fujimori Sangyo Co Ltd
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Fujimori Sangyo Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To prevent water content of a vent layer and the like of a building exterior wall from penetrating into a ventilation duct and reduce man-hours for construction.SOLUTION: A ventilation sleeve 10 of a ventilation duct device 1 is installed in a wall 4 of a building. An annular end plate part 10e blocks between a cylindrical sleeve body 10a of the ventilation sleeve 10 and a projecting cylinder part 10b with a small diameter on an outdoor side. A heat insulative ventilation duct 20 is inserted into the sleeve body 10a. An outdoor side end face 21 of the ventilation duct 20 abuts on the end plate part 10e.SELECTED DRAWING: Figure 4

Description

本発明は、建物の外壁に取り付けられる換気スリーブ、及び該換気スリーブを含む換気ダクト装置に関する。   The present invention relates to a ventilation sleeve attached to an outer wall of a building, and a ventilation duct device including the ventilation sleeve.

一般に、家屋等の建物には換気ダクトが設けられている。換気ダクトは、例えば厨房のレンジフード等から外壁へ延びている（特許文献１等参照）。
例えば、特許文献１においては、換気ダクトの屋外側端部に、換気スリーブ付きの短い端部ダクトが設けられている。端部ダクトは、ロックウールやグラスウール等からなる環状の断熱材によって構成されている。該端部ダクトの外周に、金属製の換気スリーブ（外スリーブ）が嵌められている。端部ダクトの内周には、金属製の内スリーブが嵌められている。内スリーブの屋外側端部は、換気スリーブ及び端部ダクトよりも屋外側へ突出されている。 Generally, ventilation ducts are provided in buildings such as houses. The ventilation duct extends from, for example, a kitchen range hood or the like to the outer wall (see Patent Document 1).
For example, in patent document 1, the short edge part duct with a ventilation sleeve is provided in the outdoor side edge part of the ventilation duct. The end duct is constituted by an annular heat insulating material made of rock wool, glass wool or the like. A metal ventilation sleeve (outer sleeve) is fitted on the outer periphery of the end duct. A metal inner sleeve is fitted on the inner periphery of the end duct. The outdoor side end of the inner sleeve protrudes to the outdoor side from the ventilation sleeve and the end duct.

前記換気スリーブ付き端部ダクトが、建物の外壁の貫通孔に嵌め込まれている。換気スリーブ及び端部ダクトの屋外側端部が、外壁のサイディング（外装材）の屋内側面に突き当てられている。内スリーブの屋外側端部は、サイディングの貫通孔に挿し込まれている。逆に言うと、サイディングの貫通孔への挿し込み部を設ける必要性から、端部ダクトの内周に内スリーブが装着されている。   The end duct with the ventilation sleeve is fitted into a through-hole in the outer wall of the building. The outdoor side ends of the ventilation sleeve and the end duct are abutted against the indoor side surface of the outer wall siding (exterior material). The outdoor side end of the inner sleeve is inserted into the through hole of the siding. In other words, an inner sleeve is attached to the inner periphery of the end duct because it is necessary to provide an insertion portion into the through hole of the siding.

特開２０１４−１３７１５４号公報JP 2014-137154 A

一般に、建物の外壁においては、サイディング（外装材）と構造用パネルとの間の通気層に雨水が入り込んだり、該通気層内で結露が発生したりすることがある。
前掲特許文献１の換気ダクト構造においては、前記通気層の水分が、サイディング（外装材）と端部ダクトとの間に入り込み、そこから端部ダクトの断熱材内に浸み込むことがある。この水分が乾燥せずに留まった場合、端部ダクト内でカビが発生する原因となる。 In general, on the outer wall of a building, rainwater may enter the ventilation layer between the siding (exterior material) and the structural panel, or condensation may occur in the ventilation layer.
In the ventilation duct structure of the above-mentioned Patent Document 1, moisture in the ventilation layer may enter between the siding (exterior material) and the end duct, and may penetrate into the heat insulating material of the end duct from there. If this moisture stays dry, it will cause mold in the end duct.

また、前掲特許文献１の換気ダクト構造においては、換気スリーブ付き端部ダクトを外壁に設置したうえで、レンジフード等から外壁まで延びる換気ダクトを端部ダクトに接続する作業が必要である。
本発明は、前記事情に鑑み、換気ダクト内に建物外壁の通気層等の水分が浸み込むのを防止するとともに、施工工数を減らすことを目的とする。 Moreover, in the ventilation duct structure of the above-mentioned patent document 1, after installing the end part duct with a ventilation sleeve in an outer wall, the operation | work which connects the ventilation duct extended from a range hood etc. to an outer wall to an end duct is required.
In view of the above circumstances, an object of the present invention is to prevent moisture such as a ventilation layer of a building outer wall from entering a ventilation duct and to reduce the number of construction steps.

前記問題点を解決するために、本発明に係る換気スリーブは、建物の外壁に設けられる換気スリーブであって、
筒形状のスリーブ本体と、
前記スリーブ本体より小径の短筒状に形成され、前記スリーブ本体の屋外側端部から屋外側へ突出された突筒部と、
前記スリーブ本体の屋外側端部と前記突筒部の屋内側端部との間を塞ぐように設けられた環状の端板部と、
を備えたことを特徴とする。 In order to solve the above problems, a ventilation sleeve according to the present invention is a ventilation sleeve provided on an outer wall of a building,
A cylindrical sleeve body;
A projecting cylinder portion that is formed in a short cylinder shape having a smaller diameter than the sleeve main body and protrudes from the outdoor side end portion of the sleeve main body to the outdoor side;
An annular end plate portion provided so as to block between the outdoor side end portion of the sleeve body and the indoor side end portion of the protruding cylinder portion;
It is provided with.

当該換気スリーブによれば、それ単独で建物外壁に設置できる。当該換気スリーブの内部に前掲特許文献１の端部ダクトを設置しておく必要は無い。ひいては、外壁内に端部ダクトを設置しておく必要は無い。その後、換気ダクトの端部を換気スリーブのスリーブ本体に挿し込む。換気ダクトを端部ダクトに接続する作業は不要である。したがって、前掲特許文献１よりも施工工数を減らすことができ、施工を効率化できる。
また、換気スリーブの端板部によって換気ダクトの屋外側端部を覆うことができる。したがって、建物の外壁の通気層における水分が、換気ダクトの屋外側端部から換気ダクトの断熱材内に浸み込むのを防止できる。これによって、断熱材内でカビが発生するのを防止できる。 According to the ventilation sleeve, it can be installed alone on the building outer wall. It is not necessary to install the end duct of Patent Document 1 described above inside the ventilation sleeve. As a result, it is not necessary to install an end duct in the outer wall. Thereafter, the end of the ventilation duct is inserted into the sleeve body of the ventilation sleeve. There is no need to connect the ventilation duct to the end duct. Therefore, the number of construction steps can be reduced as compared with the aforementioned Patent Document 1, and the construction can be made more efficient.
Moreover, the outdoor side end part of the ventilation duct can be covered with the end plate part of the ventilation sleeve. Therefore, it is possible to prevent moisture in the ventilation layer of the outer wall of the building from entering the heat insulating material of the ventilation duct from the outdoor side end of the ventilation duct. Thereby, generation | occurrence | production of mold | fungi in a heat insulating material can be prevented.

前記端板部の外周部が、前記スリーブ本体の屋外側端部と接合又は連続され、
前記端板部の内周部が、前記突筒部の屋内側端部と接合又は連続されていることが好ましい。
これによって、換気スリーブが全体として一体になり、スリーブ本体と端板部と突筒部を一体として外壁に取付ければよく、施工を容易化できる。
ここで、「接合」とは、端板部とスリーブ本体、又は端板部と突筒部が、溶接等によって一体になっていることを言う。「連続」は、端板部とスリーブ本体、又は端板部と突筒部が、同一部材によって構成され、一体に連なっていることを言う。 The outer peripheral part of the end plate part is joined or continuous with the outdoor side end part of the sleeve body,
It is preferable that the inner peripheral part of the end plate part is joined or continuous with the indoor side end part of the protruding cylinder part.
Thus, the ventilation sleeve is integrated as a whole, and the sleeve main body, the end plate portion, and the projecting tube portion may be attached to the outer wall as one body, and the construction can be facilitated.
Here, “joining” means that the end plate portion and the sleeve main body, or the end plate portion and the protruding cylinder portion are integrated by welding or the like. “Continuous” means that the end plate portion and the sleeve main body, or the end plate portion and the projecting tube portion are formed of the same member and are integrally connected.

本発明に係る換気ダクト装置は、
前記換気スリーブと、
前記換気スリーブのスリーブ本体に挿し入れられ、屋外側端面が前記端板部に突き当てられた断熱性の換気ダクトと、
を備えたことを特徴とする換気ダクト装置。 Ventilation duct device according to the present invention,
The ventilation sleeve;
A heat-insulating ventilation duct inserted into the sleeve body of the ventilation sleeve and having an outdoor side end face abutted against the end plate part;
A ventilation duct device characterized by comprising:

本発明によれば、換気ダクト内に水分が浸み込むのを防止できる。かつ施工工数を減らすことができる。   According to the present invention, it is possible to prevent moisture from entering the ventilation duct. And construction man-hours can be reduced.

図１は、本発明の第１実施形態に係る換気ダクト装置の断面図である。FIG. 1 is a cross-sectional view of a ventilation duct device according to a first embodiment of the present invention. 図２は、前記換気ダクト装置の換気スリーブと換気ダクトを分離して示す断面図である。FIG. 2 is a sectional view showing a ventilation sleeve and a ventilation duct of the ventilation duct device separately. 図３は、前記換気スリーブの斜視図である。FIG. 3 is a perspective view of the ventilation sleeve. 図４は、前記換気ダクト装置が設けられた建物外壁の側面断面図である。FIG. 4 is a side cross-sectional view of the building outer wall provided with the ventilation duct device. 図５は、前記換気ダクトが設けられた建物外壁における屋外側部分を拡大して示す側面断面図である。FIG. 5 is an enlarged side sectional view showing an outdoor portion of the building outer wall provided with the ventilation duct. 図６は、本発明の第２実施形態に係る換気スリーブを示す側面断面図である。FIG. 6 is a side sectional view showing a ventilation sleeve according to the second embodiment of the present invention. 図７は、本発明の第３実施形態に係る換気スリーブを示す側面断面図である。FIG. 7 is a side sectional view showing a ventilation sleeve according to the third embodiment of the present invention. 図８は、本発明の第４実施形態に係る換気スリーブを示す側面断面図である。FIG. 8 is a side sectional view showing a ventilation sleeve according to the fourth embodiment of the present invention.

以下、本発明の実施形態を図面にしたがって説明する。
＜第１実施形態＞
図１〜図５は、本発明の第１実施形態を示したものである。図１に示すように、換気ダクト装置１は、換気スリーブ１０と、換気ダクト２０を備えている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<First Embodiment>
1 to 5 show a first embodiment of the present invention. As shown in FIG. 1, the ventilation duct device 1 includes a ventilation sleeve 10 and a ventilation duct 20.

図２及び図３に示すように、換気スリーブ１０は、スリーブ本体部材１１と、スリーブ端部材１２を含む。これら部材１１，１２の材質は、亜鉛メッキ鋼、ステンレス鋼、高耐食溶融めっき鋼、アルミニウム等の金属にて構成されている。   As shown in FIGS. 2 and 3, the ventilation sleeve 10 includes a sleeve body member 11 and a sleeve end member 12. The material of these members 11 and 12 is comprised with metals, such as galvanized steel, stainless steel, high corrosion-resistant hot dip plated steel, and aluminum.

スリーブ本体部材１１は、スリーブ本体１０ａと、屈曲接合部１１ｄを一体に有している。スリーブ本体１０ａは、円筒状になっている。
図３に示すように、スリーブ本体部材１１となるべき金属板が、円筒状に丸められ、かつ丸め方向の両端部どうしが溶接等にて接合されて接合部１０ｃが形成されることによって、スリーブ本体１０ａが構成されている。
図２に示すように、スリーブ本体１０ａの屋外側の端縁は、後記端板部１０ｅとの接合時に断面Ｕ字状に屈曲され、屈曲接合部１１ｄとなっている。 The sleeve main body member 11 integrally includes a sleeve main body 10a and a bent joint portion 11d. The sleeve body 10a has a cylindrical shape.
As shown in FIG. 3, the metal plate to be the sleeve body member 11 is rounded into a cylindrical shape, and both ends in the rounding direction are joined together by welding or the like to form a joint 10c. A main body 10a is configured.
As shown in FIG. 2, the edge of the sleeve body 10a on the outdoor side is bent into a U-shaped cross section at the time of joining with the end plate part 10e, which will be described later, to form a bent joint part 11d.

図２及び図３に示すように、スリーブ本体１０ａの外周には、取付フランジ１５が設けられている。取付フランジ１５は、金属にて構成され、好ましくはスリーブ本体部材１１と同じ材質の金属板によって構成されている。
取付フランジ１５は、中心穴１５ｃを有する四角形の板状になっており、その四隅には、壁取付用のビス穴１５ｄが形成されている。取付フランジ１５の中心穴１５ｃの周縁のリム１５ｂが、スリーブ本体１０ａの外周面に溶接等によって固定されている。 As shown in FIGS. 2 and 3, a mounting flange 15 is provided on the outer periphery of the sleeve body 10a. The mounting flange 15 is made of metal, and is preferably made of a metal plate made of the same material as the sleeve body member 11.
The mounting flange 15 has a rectangular plate shape having a center hole 15c, and screw holes 15d for wall mounting are formed at the four corners. A rim 15b at the periphery of the center hole 15c of the mounting flange 15 is fixed to the outer peripheral surface of the sleeve body 10a by welding or the like.

スリーブ本体部材１１の屋外側（図６において左側）の端部にスリーブ端部材１２が設けられている。スリーブ端部材１２は、金属にて構成され、好ましくはスリーブ本体部材１１と同じ材質の金属板によって構成されている。   A sleeve end member 12 is provided at an end of the sleeve main body member 11 on the outdoor side (left side in FIG. 6). The sleeve end member 12 is made of metal, and is preferably made of a metal plate made of the same material as the sleeve body member 11.

スリーブ端部材１２は、突筒部１０ｂと、端板部１０ｅを一体に含む。突筒部１０ｂは、円形の短筒状に形成されている。突筒部１０ｂの直径は、スリーブ本体１０ａよりも小径である。かつ突筒部１０ｂの軸長は、スリーブ本体１０ａよりも十分に短い。好ましくは、突筒部１０ｂは、スリーブ本体１０ａと同軸上に配置されている。突筒部１０ｂの屋内側端部（図２において右端部）と、スリーブ本体１０ａの屋外側端部（図２において左端部）とが、換気スリーブ１０の軸線に沿って同一位置に配置されている。突筒部１０ｂは、スリーブ本体１０ａの屋外側端部から屋外側（図２において左側）へ突出されている。   The sleeve end member 12 integrally includes a protruding cylinder portion 10b and an end plate portion 10e. The protruding cylinder portion 10b is formed in a circular short cylinder shape. The diameter of the protruding cylinder portion 10b is smaller than that of the sleeve body 10a. In addition, the axial length of the protruding cylindrical portion 10b is sufficiently shorter than the sleeve main body 10a. Preferably, the protruding cylinder portion 10b is disposed coaxially with the sleeve body 10a. The indoor side end portion (right end portion in FIG. 2) of the projecting cylinder portion 10b and the outdoor side end portion (left end portion in FIG. 2) of the sleeve body 10a are arranged at the same position along the axis of the ventilation sleeve 10. Yes. The protruding cylinder 10b protrudes from the outdoor side end of the sleeve body 10a to the outdoor side (left side in FIG. 2).

端板部１０ｅは、円環状の板状に形成されている。端板部１０ｅの内周部が突筒部１０ｂの屋内側端部と一体に連続されている。端板部１０ｅは、突筒部１０ｂから径方向外側へ突出されている。   The end plate portion 10e is formed in an annular plate shape. The inner peripheral part of the end plate part 10e is continuously integrated with the indoor side end part of the protruding cylinder part 10b. The end plate part 10e protrudes radially outward from the protruding cylinder part 10b.

端板部１０ｅの外周部が、スリーブ本体部材１１の屋外側端部に接合されている。詳しくは、スリーブ本体部材１１の屈曲接合部１１ｄが、端板部１０ｅの外周縁に沿って回り込むように断面Ｕ字状に屈曲され、かつ端板部１０ｅとカシメや溶接等によって接合されている。好ましくは、スリーブ本体部材１１の屈曲接合部１１ｄと端板部１０ｅとは、互いの間を水分が透過不能に接合されている。
端板部１０ｅは、スリーブ本体１０ａと突筒部１０ｂとを連ねる環状の段差となっている。
端板部１０ｅによって、スリーブ本体１０ａの屋外側端部と、突筒部１０ｂの屋内側端部との間が塞がれている。好ましくは液密に塞がれている。 The outer peripheral portion of the end plate portion 10 e is joined to the outdoor side end portion of the sleeve main body member 11. Specifically, the bent joint portion 11d of the sleeve body member 11 is bent in a U-shaped cross section so as to wrap around the outer peripheral edge of the end plate portion 10e, and is joined to the end plate portion 10e by caulking, welding, or the like. . Preferably, the bent joint portion 11d and the end plate portion 10e of the sleeve main body member 11 are joined to each other so that moisture cannot pass therethrough.
The end plate portion 10e is an annular step that connects the sleeve body 10a and the protruding cylinder portion 10b.
The end plate portion 10e blocks the outdoor side end portion of the sleeve main body 10a and the indoor side end portion of the protruding cylinder portion 10b. Preferably it is liquid tightly closed.

図４に示すように、換気スリーブ１０ひいては換気ダクト装置１は、建物の外壁４（壁）に設置されている。
外壁４は、屋外側（図４において左側）から順次、外装材４１（サイディングパネル）と、胴縁４２と、構造用パネル４３と、壁内断熱材４４と、内装材４５を構成要素として含む。外装材４１と構造用パネル４３との間に、胴縁４２の厚み分の通気層４６が形成されている。 As shown in FIG. 4, the ventilation sleeve 10 and the ventilation duct device 1 are installed on the outer wall 4 (wall) of the building.
The outer wall 4 includes an exterior material 41 (siding panel), a body edge 42, a structural panel 43, an in-wall heat insulating material 44, and an interior material 45 as constituent elements in order from the outdoor side (left side in FIG. 4). . A ventilation layer 46 corresponding to the thickness of the trunk edge 42 is formed between the exterior material 41 and the structural panel 43.

外壁４には貫通孔４９が形成されている。貫通孔４９は、外壁４の構成要素４１，４３，４４，４５を屋外側から屋内側へ貫通している。貫通孔４９のうち、外装材４１の貫通孔部分４９ａは、構造用パネル４３と壁内断熱材４４と内装材４５の貫通孔部分４９ｂ，４９ｃ，４９ｄよりも小径である。   A through hole 49 is formed in the outer wall 4. The through hole 49 penetrates the components 41, 43, 44, and 45 of the outer wall 4 from the outdoor side to the indoor side. Of the through holes 49, the through hole portion 49 a of the exterior material 41 has a smaller diameter than the through holes 49 b, 49 c, and 49 d of the structural panel 43, the in-wall heat insulating material 44, and the interior material 45.

貫通孔部分４９ｂ，４９ｃ，４９ｄには、スリーブ本体部材１１が嵌め込まれている。取付フランジ１５が、構造用パネル４３の屋外側面に宛がわれ、かつビスや釘等（図示省略）によって固定されている。
外装材４１の貫通孔部分４９ａには、突筒部１０ｂが嵌め込まれている。突筒部１０ｂにベントキャップ５が差し込まれている。
端板部１０ｅが、外装材４１の屋内側面（図４において右側面）における孔部分４９ａの周辺部に突き当てられ、又は近接している。 The sleeve main body member 11 is fitted into the through-hole portions 49b, 49c, and 49d. The mounting flange 15 is addressed to the outdoor side surface of the structural panel 43 and is fixed by screws, nails or the like (not shown).
The protruding cylinder portion 10 b is fitted in the through hole portion 49 a of the exterior material 41. A vent cap 5 is inserted into the projecting cylinder portion 10b.
The end plate portion 10e is abutted against or close to the peripheral portion of the hole portion 49a on the indoor side surface (the right side surface in FIG. 4) of the exterior member 41.

屋内における例えば厨房のレンジフード（図示省略）から換気ダクト２０が延びている。
換気ダクト２０は、厚肉の円筒形状（環状）になっている。換気ダクト２０の主材質は、ガラス繊維フェルトにて構成されているが、これに限られず、グラスウール、セラミックウール、ロックウール等であってもよい。詳細な図示は省略するが、換気ダクト１０の外周面及び内周面には、金属や不織布等を含む耐火性の被覆層が設けられている。 For example, a ventilation duct 20 extends from a range hood (not shown) of a kitchen indoors.
The ventilation duct 20 has a thick cylindrical shape (annular shape). The main material of the ventilation duct 20 is made of glass fiber felt, but is not limited thereto, and may be glass wool, ceramic wool, rock wool or the like. Although detailed illustration is omitted, on the outer peripheral surface and inner peripheral surface of the ventilation duct 10, a fire-resistant coating layer containing metal, nonwoven fabric, or the like is provided.

換気ダクト２０の屋外側の端部が、換気スリーブ１０に挿し込まれている。換気ダクト２０の屋外端面２１が端板部１０ｅに突き当てられている。端板部１０ｅによって換気ダクト２０の屋外端面２１が覆われている。   The end of the ventilation duct 20 on the outdoor side is inserted into the ventilation sleeve 10. The outdoor end face 21 of the ventilation duct 20 is abutted against the end plate portion 10e. The end plate portion 10e covers the outdoor end face 21 of the ventilation duct 20.

＜換気ダクト装置１の施工例＞
換気ダクト装置１は、例えば、次のように施工される。
外壁４の構造用パネル４３を設置後、その貫通孔部分４９ｂにスリーブ本体部材１１を挿通し、取付フランジ１５を構造用パネル４３に固定する。
外装材４１の設置時には、貫通孔部分４９ａに突筒部１０ｂを挿通する。更に、ベントキャップ５を嵌める。
内装材４５の設置時には、貫通孔部分４９ｄにスリーブ本体部材１１の屋内側端部を挿通する。
換気スリーブ１０によれば、それ単独で外壁４に設置できる。つまり、換気スリーブ１０の内部に前掲特許文献１の端部ダクトを設置しておく必要は無い。ひいては、外壁４内に端部ダクトを設置しておく必要は無い。 <Construction example of ventilation duct device 1>
The ventilation duct apparatus 1 is constructed as follows, for example.
After installing the structural panel 43 on the outer wall 4, the sleeve body member 11 is inserted into the through-hole portion 49 b and the mounting flange 15 is fixed to the structural panel 43.
When installing the exterior material 41, the protruding cylinder portion 10b is inserted into the through-hole portion 49a. Further, the vent cap 5 is fitted.
When installing the interior material 45, the indoor side end of the sleeve body member 11 is inserted into the through-hole portion 49d.
The ventilation sleeve 10 can be installed on the outer wall 4 alone. That is, it is not necessary to install the end duct of the above-mentioned Patent Document 1 inside the ventilation sleeve 10. As a result, it is not necessary to install an end duct in the outer wall 4.

外壁４の構築後、換気ダクト２０を屋内側（図４において右側）から換気スリーブ１０のスリーブ本体１０ａ内に挿し込む。更に、換気ダクト２０の屋外側端部２１を端板部１０ｅに突き当てる。
換気ダクト２０を端部ダクトに接続する作業は不要である。したがって、前掲特許文献１よりも施工工数を減らすことができ、施工を効率化できる。 After the construction of the outer wall 4, the ventilation duct 20 is inserted into the sleeve body 10a of the ventilation sleeve 10 from the indoor side (right side in FIG. 4). Furthermore, the outdoor side end portion 21 of the ventilation duct 20 is abutted against the end plate portion 10e.
The operation | work which connects the ventilation duct 20 to an edge part duct is unnecessary. Therefore, the number of construction steps can be reduced as compared with the aforementioned Patent Document 1, and the construction can be made more efficient.

換気ダクト装置１によれば、換気ダクト２０の外面を換気スリーブ１０のスリーブ本体１０ａによって覆うとともに、換気ダクト２０の屋外端面２１を換気スリーブ１０の端板部１０ｅによって覆うことができる。
このため、図５において拡大して示すように、外壁４の通気層４６に雨水が入り込んだり、通気層４６内で結露が発生したりした場合、この通気層４６の水分ｗは、外装材４１と端板部１０ｅとの間を通り、更に、外装材４１の貫通孔部分４９ａの内面と突筒部１０ｂとの間を通って排出される。
この結果、水分が換気ダクト２０の屋外端面２１から換気ダクト２０内に浸み込むのを防止でき、換気ダクト２０の内部でカビが発生するのを防止できる。
なお、図５においては、理解を容易化するために、屈曲接合部１１ｄ及び端板部１０ｅと、外装材４１との間の隙間が誇張されている。実際には、屈曲接合部１１ｄと外装材４１とが好ましくは突き当てられることで、隙間はほとんど形成されていない。図５において、外装材４１の貫通孔部分４９ａの内面と突筒部１０ｂとの間の隙間についても、同様に誇張されている。 According to the ventilation duct device 1, the outer surface of the ventilation duct 20 can be covered with the sleeve body 10 a of the ventilation sleeve 10, and the outdoor end face 21 of the ventilation duct 20 can be covered with the end plate portion 10 e of the ventilation sleeve 10.
Therefore, as shown in an enlarged view in FIG. 5, when rainwater enters the ventilation layer 46 of the outer wall 4 or condensation occurs in the ventilation layer 46, the moisture w of the ventilation layer 46 is reduced by the exterior material 41. And the end plate portion 10e, and further passes between the inner surface of the through-hole portion 49a of the exterior material 41 and the protruding cylinder portion 10b.
As a result, moisture can be prevented from entering the ventilation duct 20 from the outdoor end face 21 of the ventilation duct 20, and mold can be prevented from being generated inside the ventilation duct 20.
In FIG. 5, the gap between the bent joint portion 11 d and the end plate portion 10 e and the exterior material 41 is exaggerated for easy understanding. In practice, the bent joint 11d and the exterior material 41 are preferably abutted so that almost no gap is formed. In FIG. 5, the gap between the inner surface of the through-hole portion 49 a of the exterior material 41 and the protruding cylinder portion 10 b is similarly exaggerated.

次に、本発明の他の実施形態（変形例を含む）を説明する。以下の実施形態において、既述の形態と重複する構成に関しては、図面に同一符号を付して説明を省略する。
＜第２実施形態＞
図６は、本発明の第２実施形態に係る換気スリーブ１０Ｂを示したものである。
換気スリーブ１０Ｂは、第１実施形態（図２）と同様に、スリーブ本体部材１１と、スリーブ端部材１２との２部材構造になっている。スリーブ端部材１２の端板部１０ｅの外周縁が断面Ｌ字状に折り曲げられることによって、外嵌部１２ａが形成されている。外嵌部１２ａは、端板部１０ｅの全周に沿う環状又は筒状に形成され、端板部１０ｅの外周縁から屋内側（図６において右側）へ突出されている。
外嵌部１２ａが、スリーブ本体部材１１の屋外側の部分の外周に嵌め込まれている。スリーブ本体部材１１と外嵌部１２ａとが溶接等によって接合されている。 Next, other embodiments (including modifications) of the present invention will be described. In the following embodiments, the same reference numerals are given to the drawings for the same configurations as those already described, and the description thereof is omitted.
Second Embodiment
FIG. 6 shows a ventilation sleeve 10B according to a second embodiment of the present invention.
The ventilation sleeve 10B has a two-member structure of a sleeve main body member 11 and a sleeve end member 12 as in the first embodiment (FIG. 2). An outer fitting portion 12a is formed by bending the outer peripheral edge of the end plate portion 10e of the sleeve end member 12 into an L-shaped cross section. The outer fitting portion 12a is formed in an annular shape or a cylindrical shape along the entire circumference of the end plate portion 10e, and protrudes from the outer peripheral edge of the end plate portion 10e to the indoor side (right side in FIG. 6).
The outer fitting portion 12 a is fitted on the outer periphery of the outdoor side portion of the sleeve main body member 11. The sleeve main body member 11 and the outer fitting portion 12a are joined by welding or the like.

＜第３実施形態＞
図７は、本発明の第３実施形態に係る換気スリーブ１０Ｃを示したものである。換気スリーブ１０Ｃは、スリーブ本体部材１１と、突筒部材１３と、端板部材１４との３部材構造になっている。スリーブ本体部材１１によってスリーブ本体１０ａが構成されている。突筒部材１３は、円形の短筒状になっており、突筒部１０ｂを構成している。端板部材１４は、環状の板状になっており、端板部１０ｅを構成している。３つの部材１１，１３，１４が、互いに別体になっている。 <Third Embodiment>
FIG. 7 shows a ventilation sleeve 10C according to the third embodiment of the present invention. The ventilation sleeve 10 </ b> C has a three-member structure including a sleeve main body member 11, a protruding cylinder member 13, and an end plate member 14. A sleeve main body 10 a is configured by the sleeve main body member 11. The protruding cylinder member 13 has a circular short cylindrical shape, and constitutes a protruding cylinder portion 10b. The end plate member 14 has an annular plate shape and constitutes an end plate portion 10e. The three members 11, 13, and 14 are separate from each other.

スリーブ本体部材１１の屋外側（図７において左側）の端縁と、端板部材１４の外周縁とは、第１実施形態（図２）におけるスリーブ本体部材１１と端板部１０ｅとの接合形態と同様にして接合されている。すなわち、スリーブ本体部材１１の屋外側の端縁が、端板部材１４の外周縁に沿って回り込むように断面Ｕ字状に屈曲されることで、屈曲接合部１１ｄが形成され、この屈曲接合部１１ｄが端板部材１４とカシメや溶接等によって接合されている。   The end edge of the sleeve body member 11 on the outdoor side (left side in FIG. 7) and the outer peripheral edge of the end plate member 14 are joined forms of the sleeve body member 11 and the end plate portion 10e in the first embodiment (FIG. 2). It is joined in the same way. That is, the edge of the sleeve body member 11 on the outdoor side is bent in a U-shaped cross section so as to wrap around the outer peripheral edge of the end plate member 14, thereby forming a bent joint 11 d. 11d is joined to the end plate member 14 by caulking, welding, or the like.

また、端板部材１４の内周縁と、突筒部材１３の屋内側（図７において右側）の端縁とが接合されている。詳しくは、突筒部材１３の屋内側の端縁が断面Ｌ字状に折り曲げられることによって環状のリム１３ｄが形成されている。このリム１３ｄが端板部材１４に溶接等によって接合されている。   Further, the inner peripheral edge of the end plate member 14 and the end edge on the indoor side (right side in FIG. 7) of the protruding cylinder member 13 are joined. Specifically, an annular rim 13d is formed by bending the indoor edge of the protruding cylinder member 13 into an L-shaped cross section. The rim 13d is joined to the end plate member 14 by welding or the like.

＜第４実施形態＞
図８は、本発明の第４実施形態に係る換気スリーブ１０Ｄを示したものである。換気スリーブ１０Ｄにおいては、スリーブ本体１０ａと端板部１０ｅと突筒部１０ｂとが、１つの金属製の筒部材から一体成形されている。これによって、部品点数を一層少なくできる。 <Fourth embodiment>
FIG. 8 shows a ventilation sleeve 10D according to a fourth embodiment of the present invention. In the ventilation sleeve 10D, the sleeve main body 10a, the end plate portion 10e, and the protruding cylinder portion 10b are integrally formed from one metal cylinder member. Thereby, the number of parts can be further reduced.

本発明は、前記実施形態に限られず、その趣旨を逸脱しない範囲内で種々の改変をなすことができる。
例えば、第１実施形態（図２）の換気スリーブ１０におけるスリーブ本体部材１１とスリーブ端部材１２との接合態様の変形例として、スリーブ端部材１２の端板部１０ｅに屈曲接合部を形成してスリーブ本体部材１１と接合してもよく、両方の部材１１，１２に屈曲接合部を形成してハゼ接合してもよい。
第２実施形態（図６）の換気スリーブ１０Ｂにおけるスリーブ本体部材１１とスリーブ端部材１２との接合態様の変形例として、スリーブ本体部材１１の屋外側の端部が、径方向内側へ断面Ｌ字状に折り曲げられ、この折り曲げ部がスリーブ端部材１２の端板部１０ｅと接合されていてもよい。
第３実施形態（図７）の換気スリーブ１０Ｃにおけるスリーブ本体部材１１と端板部材１４との接合態様の変形例として、端板部材１４の外周縁に屈曲接合部を形成してスリーブ本体部材１１と接合してもよく、両方の部材１１，１４に屈曲接合部を形成してハゼ接合してもよく、他の接合態様を適用してもよい。
また、第３実施形態（図７）の換気スリーブ１０Ｃにおける突筒部材１３と端板部材１４との接合態様の変形例として、端板部材１４の内周縁にリムを形成して突筒部材１３と接合してもよく、他の接合態様を適用してもよい。 The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, as a modification of the joining mode of the sleeve body member 11 and the sleeve end member 12 in the ventilation sleeve 10 of the first embodiment (FIG. 2), a bent joint is formed on the end plate portion 10e of the sleeve end member 12. The sleeve main body member 11 may be joined, or both the members 11 and 12 may be bent and joined together by forming a bent joint.
As a modification of the joining mode of the sleeve main body member 11 and the sleeve end member 12 in the ventilation sleeve 10B of the second embodiment (FIG. 6), the end portion on the outdoor side of the sleeve main body member 11 has an L-shaped cross section inward in the radial direction. The bent portion may be joined to the end plate portion 10 e of the sleeve end member 12.
As a modification of the joining mode of the sleeve body member 11 and the end plate member 14 in the ventilation sleeve 10C of the third embodiment (FIG. 7), a bent joint is formed on the outer peripheral edge of the end plate member 14 to form the sleeve body member 11. May be joined to each other, and a bent joint may be formed on both the members 11 and 14 to be joined together, or other joining modes may be applied.
Further, as a modification of the joining mode of the projecting tube member 13 and the end plate member 14 in the ventilation sleeve 10C of the third embodiment (FIG. 7), a rim is formed on the inner peripheral edge of the end plate member 14 to form the projecting tube member 13. And other joining modes may be applied.

本発明は、例えば、建物の換気用のダクト設備に適用できる。   The present invention can be applied, for example, to duct equipment for ventilation of buildings.

１ 換気ダクト装置
１０，１０Ｂ，１０Ｃ，１０Ｄ 換気スリーブ
１０ａ スリーブ本体
１０ｂ 突筒部
１０ｅ 端板部
１１ スリーブ本体部材
１１ｄ 屈曲接合部
１２ スリーブ端部材
１２ａ 外嵌部
１３ 突筒部材
１３ｄ リム
１４ 端板部材
１５ 取付フランジ
２０ 換気ダクト
２１ 外端面
４ 外壁
４６ 通気層
４９ 貫通孔 DESCRIPTION OF SYMBOLS 1 Ventilation duct apparatus 10, 10B, 10C, 10D Ventilation sleeve 10a Sleeve main body 10b Projection cylinder part 10e End plate part 11 Sleeve main body member 11d Bending joint part 12 Sleeve end member 12a Outer fitting part 13 Projection cylinder member 13d Rim 14 End plate member 15 Mounting flange 20 Ventilation duct 21 Outer end face 4 Outer wall 46 Ventilation layer 49 Through hole

Claims (3)

建物の外壁に設けられる換気スリーブであって、
筒形状のスリーブ本体と、
前記スリーブ本体より小径の短筒状に形成され、前記スリーブ本体の屋外側端部から屋外側へ突出された突筒部と、
前記スリーブ本体の屋外側端部と前記突筒部の屋内側端部との間を塞ぐように設けられた環状の端板部と、
を備えたことを特徴とする換気スリーブ。 A ventilation sleeve provided on the outer wall of the building,
A cylindrical sleeve body;
A projecting cylinder portion that is formed in a short cylinder shape having a smaller diameter than the sleeve main body and protrudes from the outdoor side end portion of the sleeve main body to the outdoor side;
An annular end plate portion provided so as to block between the outdoor side end portion of the sleeve body and the indoor side end portion of the protruding cylinder portion;
Ventilation sleeve characterized by comprising. 前記端板部の外周部が、前記スリーブ本体の屋外側端部と接合又は連続され、
前記端板部の内周部が、前記突筒部の屋内側端部と接合又は連続されていることを特徴とする請求項１に記載の換気スリーブ。 The outer peripheral part of the end plate part is joined or continuous with the outdoor side end part of the sleeve body,
The ventilation sleeve according to claim 1, wherein an inner peripheral portion of the end plate portion is joined to or continuous with an indoor side end portion of the protruding cylinder portion. 請求項１又は２に記載の換気スリーブと、
前記換気スリーブのスリーブ本体に挿し入れられ、屋外側端面が前記端板部に突き当てられた断熱性の換気ダクトと、
を備えたことを特徴とする換気ダクト装置。 A ventilation sleeve according to claim 1 or 2,
A heat-insulating ventilation duct inserted into the sleeve body of the ventilation sleeve and having an outdoor side end face abutted against the end plate part;
A ventilation duct device characterized by comprising:
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