JP2013036204A

JP2013036204A - Ventilation member

Info

Publication number: JP2013036204A
Application number: JP2011172154A
Authority: JP
Inventors: Takahiro Izumi; 貴浩和泉
Original assignee: Nihon Kagaku Sangyo Co Ltd
Current assignee: Nihon Kagaku Sangyo Co Ltd
Priority date: 2011-08-05
Filing date: 2011-08-05
Publication date: 2013-02-21
Anticipated expiration: 2031-08-05
Also published as: JP5990368B2

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation member having excellent waterproofness and fire resistance, which can be easily installed with a simple arrangement.SOLUTION: A ventilation member comprises a roof board upper face-contacting piece 4a in contact with the upper face of a roof board 2 of eaves, a roof board end face-opposing piece 4b opposed to the end face 2a of the roof board 2, a sheath material-contacting piece 4c in contact with the upper face 10a of a sheath material 10 for an external wall 9 installed below the roof board 2, an external ventilation opening 11 which is installed on the outside air-side between the roof board end face-opposing piece 4b and the sheath material-contacting piece 4c and allows a ventilation space 13 installed between the roof board 2 and the sheath material-contacting piece 4c to communicate with the outside air, and an attic ventilation opening 12 which is installed on the attic space-side and allows the ventilation space 13 to communicate with the attic space. The external ventilation opening 11 is installed at a corner where the roof board end face-opposing piece 4b and the sheath material-contacting piece 4c are connected.

Description

本発明は、軒先の野地板の端部に設けられて外気と小屋裏空間とを連通して換気する換気部材に関するものである。 The present invention relates to a ventilation member that is provided at an end portion of an eaves field plate and ventilates the outside air in communication with the cabin space.

一般に小屋裏空間の換気は軒天井に換気部材を設置して行われているが、軒先と外壁とが近接していて軒天井が構成できない場合や、納まりを単純にするために屋根軒先の先端で垂木の小口部に設けられる鼻隠し板を省略し、外装材を広小舞まで直接立ち上げる場合や、見栄掛かりとなる軒天井を避けて、広小舞部に換気部材を設置して小屋裏空間に外気を取り入れる場合においては、特許文献１〜３に記載されたように、屋根軒先の先端で垂木（たるき）の上部に設けられる広小舞（ひろこまい）付近に換気部材を設置する技術は有用である。 In general, the ventilation of the attic space is done by installing ventilation members on the eaves ceiling, but the eaves ceiling and the outer wall are close to each other and the eaves ceiling cannot be configured, or the tip of the roof eaves to simplify the storage By omitting the nose cover plate provided at the mouth of the rafters and setting up the exterior materials directly to Hirokomai, or avoiding the eaves ceiling that looks like an appearance, install ventilation members in the Hirokomai section and install the hut When taking outside air into the back space, as described in Patent Documents 1 to 3, a ventilation member is installed near Hirokomai located at the top of the rafter at the tip of the roof eaves The technique to do is useful.

特開２００１−３４９０２３号公報JP 2001-349023 A 特開２００８−１５０９０４号公報JP 2008-150904 A 特開２００８−３０４１４０号公報JP 2008-304140 A

しかしながら、前述の特許文献１の技術では、外部からの雨水の吹き込みに不安がある。また、軒先部分で野地板が省略されているので屋根葺き材の固定が不安定になるおそれがある。 However, with the technique of the above-mentioned patent document 1, there is anxiety about the rain water blowing from the outside. Moreover, since the base plate is omitted at the eaves portion, there is a possibility that the fixing of the roofing material becomes unstable.

また、特許文献２の技術では、通気部材を設置するための専用下地材を別途用意する必要があり、納まりも複雑になるため、通気部材の設置作業が煩雑である。 Further, in the technique of Patent Document 2, it is necessary to separately prepare a dedicated base material for installing the ventilation member, and the accommodation becomes complicated, so the installation work of the ventilation member is complicated.

また、特許文献３の技術では、換気部材が外壁面に対して平行に設置されるため、屋根の種々の傾斜勾配にそれぞれ対応した多種類の換気部材を用意する必要がある。また、換気部材の底面が略水平方向に配置され、該底面の上方に吸気用開口部が形成されているため換気部材内に吹き込んだ雨水が底面上に溜まってしまうため排水用の開口部を別途設ける必要があった。排水が良好にできないと、換気部材内に溜まった水が換気部材の端部、コーナー部から建物内部に浸入するおそれがあり、その部分に別の防水上の措置が必要となり得る。 Moreover, in the technique of patent document 3, since a ventilation member is installed in parallel with respect to an outer wall surface, it is necessary to prepare many types of ventilation members corresponding to various slopes of the roof. In addition, since the bottom surface of the ventilation member is disposed in a substantially horizontal direction and an intake opening is formed above the bottom surface, rainwater blown into the ventilation member is accumulated on the bottom surface, so that an opening for drainage is formed. It was necessary to provide it separately. If drainage is not good, the water accumulated in the ventilation member may enter the building from the end or corner of the ventilation member, and another waterproof measure may be required for that portion.

本発明は前記課題を解決するものであり、その目的とするところは、防水性、耐火性に優れ、納まりが簡単で容易に設置することが出来る換気部材を提供せんとするものである。 The present invention solves the above-mentioned problems, and an object of the present invention is to provide a ventilation member that is excellent in waterproofness and fire resistance, can be easily installed, and can be easily installed.

前記目的を達成するための本発明に係る換気部材の第１の構成は、軒先の野地板の上面に当接する野地板上面当接片と、前記野地板上面当接片に接続され、前記野地板の小口面に対向する野地板小口面対向片と、前記野地板の下方に設けられる外壁の外装材の上面に当接する外装材当接片と、前記野地板小口面対向片と前記外装材当接片との間で外気側に設けられ、前記野地板と前記外装材当接片との間に設けられる通気空間と外気とを連通する外部通気口と、小屋裏空間側に設けられ、前記通気空間と前記小屋裏空間とを連通する小屋裏通気口とを有し、前記外部通気口は、前記野地板小口面対向片と前記外装材当接片とが接続される角隅部に設けられるか、或いは前記野地板小口面対向片と前記外装材当接片との延長線上に位置する角隅部に設けられるか、或いは前記外装材当接片に設けられるか、或いは前記外装材当接片の延長線上に設けられることを特徴とする。 In order to achieve the above object, the first configuration of the ventilation member according to the present invention includes a field plate upper surface contact piece that contacts the upper surface of the field plate at the eaves end, and the field plate upper surface contact piece that is connected to the field plate upper surface contact piece. A base plate small face facing piece facing the small face of the ground plate, an exterior material contact piece coming into contact with the upper surface of the exterior material of the outer wall provided below the field plate, the field plate small face facing piece and the exterior material Provided on the outside air side between the abutment piece, provided on the shed space side, an external ventilation port communicating the outside space with the ventilation space provided between the field plate and the exterior material abutment piece, A roof back vent that communicates the ventilation space and the back of the roof space, and the external vent is provided at a corner of the corner where the field plate small face facing piece and the exterior material contact piece are connected. Corner corners that are provided or located on an extension line between the base plate small edge facing piece and the exterior material contact piece Or provided, or whether provided in the outer package contact piece, or characterized in that it is provided on the extension of the outer member contact piece.

また、本発明に係る換気部材の第２の構成は、軒先の野地板の上面に当接する野地板上面当接片と、前記野地板上面当接片に接続され、前記野地板の小口面に対向する野地板小口面対向片と、前記野地板の下面に対向する野地板下面対向片と、前記野地板の下方に設けられる外壁の外装材の上面に当接する外装材当接片と、前記野地板小口面対向片と前記外装材当接片との間で外気側に設けられ、前記野地板下面対向片と前記外装材当接片との間に設けられる通気空間と外気とを連通する外部通気口と、小屋裏空間側に設けられ、前記通気空間と小屋裏空間とを連通する小屋裏通気口とを有し、前記野地板小口面対向片と前記野地板の小口面との間、または前記野地板と前記野地板下面対向片との間に断熱材が設けられたことを特徴とする。 Further, the second configuration of the ventilation member according to the present invention is a field plate upper surface contact piece that contacts the upper surface of the eaves field plate, and the field plate upper surface contact piece that is connected to the small surface of the field plate. Opposing field plate small edge facing piece, field plate lower surface facing piece facing the lower surface of the field plate, exterior material contact piece contacting the upper surface of the exterior material of the outer wall provided below the field plate, Provided on the outside air side between the base plate small face facing piece and the exterior material abutting piece, and communicates the outside air with the ventilation space provided between the field plate lower surface facing piece and the exterior material contact piece. An external vent, and a hut back vent that is provided on the side of the shed space and communicates the ventilation space and the shed space, and is between the field plate small plate surface facing piece and the small plate surface of the field plate Alternatively, a heat insulating material is provided between the field plate and the field plate lower surface facing piece.

また、本発明に係る換気部材の第３の構成は、前記第１、第２の構成において、前記外部通気口から前記通気空間に吹き込む風力によって作動し、該外部通気口から前記小屋裏通気口への通気路を塞ぐ開閉弁を設けたことを特徴とする。 According to a third configuration of the ventilation member of the present invention, in the first and second configurations, the ventilation member is actuated by wind force blown from the external vent into the ventilation space, and the shed back vent is provided from the external vent. An on-off valve is provided to close the air passage to the head.

また、本発明に係る換気部材の第４の構成は、前記第１〜第３の構成において、前記通気空間内に熱によって膨張する不燃性体積膨張材を設けたことを特徴とする。 Moreover, the 4th structure of the ventilation member which concerns on this invention provided the nonflammable volume expansion material which expand | swells with a heat | fever in the said ventilation space in the said 1st-3rd structure.

本発明に係る換気部材の第１の構成によれば、野地板上面当接片を野地板の端部上面に当接し、野地板小口面対向片を野地板の小口面に対向させて換気部材を野地板端部に安定した状態で一体的に固定することが出来る。これにより、換気部材を取り付けるための専用下地材が不要である。また、軒先部分まで野地板が存在したままで換気部材を取り付けることが出来るので、屋根葺き材の固定に影響を与えることなく軒先部分（広小舞部分）に換気部材を設置することが出来る。また、換気部材は野地板の勾配なりに取り付けられるので、野地板の傾斜角度に対応して多種類の換気部材を用意する必要が無い。 According to the first configuration of the ventilation member according to the present invention, the field plate upper surface abutting piece is brought into contact with the end surface of the field plate, and the field plate small edge facing piece is opposed to the small edge surface of the field plate. Can be integrally fixed to the end of the base plate in a stable state. Thereby, the exclusive base material for attaching a ventilation member is unnecessary. Further, since the ventilation member can be attached while the base plate remains up to the eave portion, the ventilation member can be installed in the eave portion (the wide and small dance portion) without affecting the fixing of the roofing material. Further, since the ventilation member is attached in the form of a gradient of the field plate, it is not necessary to prepare various types of ventilation members corresponding to the inclination angle of the field plate.

また、野地板の傾斜角度に対応して換気部材が一体的に傾斜することで野地板小口面対向片と外装材当接片とが接続される角隅部に設けられるか、或いは野地板小口面対向片と外装材当接片との延長線上に位置する角隅部に設けられるか、或いは外装材当接片に設けられるか、或いは外装材当接片の延長線上に設けられた外部通気口が排水口を兼ね該換気部材内に吹き込んだ雨水の排水が良好に出来る。 In addition, the ventilation member is integrally inclined corresponding to the inclination angle of the field plate, so that it is provided at the corner corner where the field plate small edge facing piece and the exterior material contact piece are connected, or the field plate small edge External ventilation provided on the corners located on the extension line between the surface facing piece and the exterior material contact piece, or on the exterior material contact piece, or on the extension line of the exterior material contact piece The drainage of rainwater blown into the ventilation member with the mouth also serving as a drainage port can be satisfactorily performed.

また、外壁の外装材の上面を外装材当接片に当接して設置することで、野地板の下面と、外壁の上面との間に、小屋裏通気口と小屋裏空間とを連通する通気路を形成することが出来る。また、コーナーの納まりを単純にするため、コーナーの手前で換気部材を留める場合、或いはコスト低減を図るため、換気部材を建物全周に設置しないで、住宅の品質確保の促進等に関する法律における小屋裏換気基準等を満たす換気面積を確保できる分だけ換気部材を設置する場合があり得るが、これらの場合にあっては、換気部材を設置しない箇所は、外装材の上面を野地板の下面に当接するだけで良く、換気部材を設置した箇所と、換気部材を設置しない箇所とで外装材の取り合いが容易である。 Also, by installing the upper surface of the exterior wall exterior material in contact with the exterior material abutment piece, ventilation between the back of the field board and the upper surface of the exterior wall communicates with the back of the roof and the space behind the roof. A road can be formed. In addition, in order to simplify the storage of the corner, when the ventilation member is fastened in front of the corner, or in order to reduce costs, the ventilation member is not installed all around the building, and the hut in the law concerning the promotion of ensuring the quality of houses, etc. There may be cases where ventilation members are installed to the extent that the ventilation area that satisfies the back ventilation standards can be secured, but in these cases, the upper surface of the exterior material should be placed on the lower surface of the field plate in places where ventilation members are not installed. It is only necessary to make contact, and it is easy to connect the exterior material between the place where the ventilation member is installed and the place where the ventilation member is not installed.

本発明に係る換気部材の第２の構成によれば、前述した第１の構成と同様の効果を奏するとともに、野地板上面当接片と野地板下面対向片とにより野地板の端部上下面を挟み込み、野地板小口面対向片を野地板の小口面に対向させて換気部材を野地板端部に一体的に固定することが出来る。また、外壁が直接広小舞に接する場合は、建物外部と小屋裏空間とが接近することになり、建物周囲において発生する火災に対する小屋裏の防火性について不安が生じることになるが、野地板小口面対向片と野地板の小口面との間、または野地板と野地板下面対向片との間に断熱材が設けられたことで、火炎や熱気を受けた換気部材の熱伝導による野地板の炭化を軽減することが出来る。 According to the 2nd composition of the ventilation member concerning the present invention, while having the same effect as the 1st composition mentioned above, the end part upper and lower surfaces of the field board by the field board upper surface contact piece and the field board lower surface opposing piece The ventilation member can be integrally fixed to the end portion of the field plate with the facing plate facing the small plate surface of the field plate. In addition, when the outer wall is directly in contact with Hirokomai, the outside of the building and the attic space will be close to each other, and there will be anxiety about the fireproofing of the attic against the fire around the building. Field plate by heat conduction of ventilation member which received flame or hot air by providing heat insulating material between small plate facing piece and small plate surface of field plate or between field plate and field plate lower surface facing piece Can reduce carbonization.

本発明に係る換気部材の第３の構成によれば、外部通気口から通気空間に吹き込む風力によって作動し、該外部通気口から小屋裏通気口への通気路を塞ぐ開閉弁を設けたことで、台風等の吹き込みにより開閉弁が作動して外部通気口から小屋裏通気口への通気路を塞ぎ、小屋裏空間への雨水の浸入を防止することが出来る。開閉弁により止められた雨水は野地板小口面対向片と外装材当接片とが接続される角隅部に設けられるか、或いは野地板小口面対向片と外装材当接片との延長線上に位置する角隅部に設けられるか、或いは外装材当接片に設けられるか、或いは野地板小口面対向片と外装材当接片との間で外気側に設けられ、野地板下面対向片と外装材当接片との間に設けられる通気空間と外気とを連通する外部通気口から排水される。 According to the third configuration of the ventilation member according to the present invention, there is provided an on-off valve that is actuated by wind force blown from the external vent into the ventilation space and blocks the ventilation path from the external vent to the cabin back vent. When the typhoon or the like is blown in, the on-off valve is operated to block the air passage from the external vent to the back of the hut, thereby preventing rainwater from entering the back of the hut. Rainwater stopped by the on-off valve is provided at the corner corner where the base plate small face facing piece and the exterior material contact piece are connected, or on the extension line of the field plate small face facing piece and the exterior material contact piece Is provided at the corners located at the corner, or at the exterior material abutting piece, or is provided on the outside side between the field plate small face facing piece and the exterior material abutting piece, and the field plate lower surface facing piece. And the exterior material contact piece are drained from an external vent that communicates the ventilation space with the outside air.

本発明に係る換気部材の第３の構成によれば、通気空間内に熱によって膨張する不燃性体積膨張材を設けたことで、火災等で発生する熱により不燃性体積膨張材が熱により膨張して外部通気口から小屋裏通気口への通気路を塞ぎ、小屋裏空間への火炎の進入を防止することが出来る。 According to the 3rd structure of the ventilation member which concerns on this invention, the nonflammable volume expansion material expand | swelled with the heat | fever which generate | occur | produces by the heat etc. by the nonflammable volume expansion material which expand | swells with heat in ventilation space. Thus, it is possible to block the ventilation path from the external vent to the attic vent and prevent the flame from entering the attic space.

（ａ）は本発明に係る換気部材の第１実施形態を建物の屋根軒先に設けた様子を示す断面説明図、（ｂ）は（ａ）の部分拡大図である。(A) is sectional explanatory drawing which shows a mode that 1st Embodiment of the ventilation member based on this invention was provided in the roof eaves of a building, (b) is the elements on larger scale of (a). （ａ），（ｂ）は第１実施形態の換気部材の構成を示す斜視図及び断面図、（ｃ）は第１実施形態の換気部材に設けられた不燃性体積膨張材が熱により膨張して外部通気口から小屋裏通気口への通気路を塞ぐ様子を示す断面説明図である。(A), (b) is the perspective view and sectional drawing which show the structure of the ventilation member of 1st Embodiment, (c) is the nonflammable volume expansion material provided in the ventilation member of 1st Embodiment expand | swelled with heat. It is sectional explanatory drawing which shows a mode that the ventilation path from an external ventilation hole to a cabin back ventilation hole is blocked. （ａ），（ｂ）は本発明に係る換気部材の第２実施形態の構成を示す斜視図及び断面図、（ｃ）は第２実施形態の換気部材に設けられた不燃性体積膨張材が熱により膨張して外部通気口から小屋裏通気口への通気路を塞ぐ様子を示す断面説明図である。(A), (b) is the perspective view and sectional drawing which show the structure of 2nd Embodiment of the ventilation member which concerns on this invention, (c) is the nonflammable volume expansion material provided in the ventilation member of 2nd Embodiment. It is sectional explanatory drawing which shows a mode that it expand | swells with a heat | fever and blocks | closes the ventilation path from an external ventilation hole to a hut back ventilation hole. （ａ）は本発明に係る換気部材の第３実施形態を建物の屋根軒先に設けた様子を示す断面説明図、（ｂ）は（ａ）の部分拡大図である。(A) is sectional explanatory drawing which shows a mode that 3rd Embodiment of the ventilation member based on this invention was provided in the roof eaves of a building, (b) is the elements on larger scale of (a). （ａ），（ｂ）は第３実施形態の換気部材の構成を示す斜視図及び断面図、（ｃ）は第３実施形態の換気部材に設けられた開閉弁が外部通気口から通気空間に吹き込む風力によって作動して該外部通気口から小屋裏通気口への通気路を塞ぐ様子を示す断面説明図、（ｄ）は第３実施形態の換気部材に設けられた不燃性体積膨張材が熱により膨張して外部通気口から小屋裏通気口への通気路を塞ぐ様子を示す断面説明図である。(A), (b) is the perspective view and sectional drawing which show the structure of the ventilation member of 3rd Embodiment, (c) is the on-off valve provided in the ventilation member of 3rd Embodiment from an external vent to ventilation space. Cross-sectional explanatory drawing which shows a mode that it act | operates with the wind force which blows in, and blocks | closes the ventilation path from this external ventilation opening to a shed back ventilation opening, (d) is a nonflammable volume expansion material provided in the ventilation member of 3rd Embodiment. It is sectional explanatory drawing which shows a mode that it expand | swells by this and blocks | closes the ventilation path from an external ventilation hole to a hut back ventilation hole.

図により本発明に係る換気部材の一実施形態を具体的に説明する。 An embodiment of a ventilation member according to the present invention will be specifically described with reference to the drawings.

先ず、図１及び図２を用いて本発明に係る換気部材の第１実施形態について説明する。図１及び図２において、建物の屋根を支持する垂木（たるき）１の上部に野地板２が固定され、該野地板２の軒先側の端部に断面Ｊ字形状の広小舞カバー３が嵌合して取り付けられる。広小舞カバー３の外側には換気部材４の野地板上面当接片４ａと野地板下面対向片４ｇとが当接して嵌装され、該野地板上面当接片４ａに略直交して接続され垂下された野地板小口面対向片４ｂが不燃断熱材５を介在させて野地板２の小口面２ａに固定部材となる釘６により固定される。尚、換気部材４の野地板２への固定は、野地板上面当接片４ａ、野地板下面対向片４ｇ、野地板小口面対向片４ｂのうちの少なくとも１つの片を釘６やビス等の固定部材により固定することが出来る。 First, 1st Embodiment of the ventilation member which concerns on this invention is described using FIG.1 and FIG.2. 1 and 2, a field board 2 is fixed to an upper part of a rafter 1 that supports a roof of a building, and an eaves cover 3 having a J-shaped cross section at an end of the field board 2 on the eaves side. Are fitted and attached. The ground plate upper surface contact piece 4a and the field plate lower surface facing piece 4g of the ventilation member 4 are fitted in contact with each other on the outside of the wide cover 3, and connected substantially orthogonally to the field plate upper surface contact piece 4a. The suspended base plate facet piece 4b is fixed by a nail 6 serving as a fixing member to the face plate 2a of the base plate 2 with an incombustible heat insulating material 5 interposed therebetween. The ventilation member 4 is fixed to the base plate 2 by attaching at least one of the base plate upper surface contact piece 4a, the base plate lower surface facing piece 4g, and the field plate small edge facing piece 4b, such as a nail 6 or a screw. It can be fixed by a fixing member.

換気部材４の野地板上面当接片４ａの上部には断面くの字形状の水切り材７が取り付けられ、その上部に屋根葺き材８が載置されて野地板２に固定される。水切り材７を建物の全周に設けることで屋根面の排水が良好に出来る。 A draining material 7 having a U-shaped cross section is attached to an upper portion of the top surface contact piece 4 a of the field plate of the ventilation member 4, and a roofing material 8 is placed on the upper portion and fixed to the field plate 2. By providing the draining material 7 on the entire circumference of the building, the roof surface can be drained well.

換気部材４は、軒先の野地板２の上面に当接する野地板上面当接片４ａと、該野地板上面当接片４ａに略直交して接続されて垂下され、複数のスリット形状の外部通気口11が形成されると共に、該野地板２の小口面２ａに不燃断熱材５を介在して当接する野地板小口面対向片４ｂと、該野地板小口面対向片４ｂに略直交して接続され、該野地板上面当接片４ａと略平行に配置されると共に、該野地板２の下方に設けられる外壁９の外装材10の上面10ａに当接する外装材当接片４ｃと、該外装材当接片４ｃに略直交して接続される起立片４ｄと、該起立片４ｄに略直交して接続され、複数のスリット形状の小屋裏通気口12が形成された通気片４ｅと、該通気片４ｅに略直交して接続される起立片４ｆと、該起立片４ｆに略直交して接続され、野地板２の下面に当接する野地板下面対向片４ｇと、該野地板下面対向片４ｇに略直交して接続されて垂下される水返し片４ｈとを有して構成されている。 The ventilation member 4 is suspended by being connected to the field plate upper surface contact piece 4a that is substantially perpendicular to the field plate upper surface contact piece 4a that contacts the upper surface of the field plate 2 at the eaves, and has a plurality of slit-shaped external ventilations. In addition to the formation of the mouth 11, the field board small edge surface facing piece 4 b that comes into contact with the small edge surface 2 a of the field board 2 through the non-combustible heat insulating material 5 is connected substantially orthogonally to the field plate small edge surface facing piece 4 b. An exterior material contact piece 4c that is disposed substantially parallel to the field plate upper surface contact piece 4a and contacts the upper surface 10a of the exterior material 10 of the outer wall 9 provided below the field plate 2; A standing piece 4d connected substantially orthogonally to the material abutting piece 4c, a ventilation piece 4e connected to the standing piece 4d substantially orthogonally and formed with a plurality of slit-shaped cabin back vents 12, and An upright piece 4f connected substantially orthogonally to the ventilation piece 4e, and connected to the upright piece 4f substantially orthogonally; Abutting sheathing roof board underside facing plate 4g to the lower surface of 2, it is configured to have a water flashing segment 4h which is suspended and is connected substantially perpendicular to said wild base plate lower surface facing plates 4g.

本実施形態の換気部材４は一枚の金属板の所定位置に複数のスリット形状の外部通気口11及び小屋裏通気口12をプレス加工により形成し、更に折り曲げ加工により成形したものである。尚、換気部材４はアルミニウム製や合成樹脂製を採用することも出来る。 The ventilation member 4 of the present embodiment is formed by pressing a plurality of slit-shaped external vents 11 and a hut back vent 12 at predetermined positions on a single metal plate, and further bending them. The ventilation member 4 can be made of aluminum or synthetic resin.

本実施形態では、外部通気口11は野地板小口面対向片４ｂと外装材当接片４ｃとの間で外気側（図１の左側）に設けられ、野地板下面対向片４ｇと外装材当接片４ｃとの間に設けられる通気空間13と外気とを連通する。外部通気口11は、野地板小口面対向片４ｂと外装材当接片４ｃとが接続される角隅部に設けられる。本実施形態では野地板小口面対向片４ｂの下部に外部通気口11を設けた場合の一例である。また、小屋裏通気口12は野地板下面対向片４ｇと外装材当接片４ｃとの接続部となる通気片４ｅに設けられ、通気空間13と小屋裏空間とを連通する。尚、小屋裏通気口12は起立片４ｄ、通気片４ｅ、起立片４ｆのうちの少なくとも１つに設けることでも良いが、比較的面積が大きくとれる通気片４ｅに小屋裏通気口12を設けることで大きな換気風量を確保することが出来る。 In this embodiment, the external vent 11 is provided on the outside air side (left side in FIG. 1) between the field plate small face facing piece 4b and the exterior material abutting piece 4c, and the field plate lower surface facing piece 4g and the exterior material contact are provided. The ventilation space 13 provided between the contact pieces 4c communicates with the outside air. The external vents 11 are provided at the corners where the base plate facet face facing pieces 4b and the exterior material contact pieces 4c are connected. In this embodiment, it is an example at the time of providing the external ventilation hole 11 in the lower part of the field board small edge surface opposing piece 4b. Moreover, the hut back vent 12 is provided in the ventilation piece 4e which becomes a connection part of the field board lower surface opposing piece 4g and the exterior material contact piece 4c, and connects the ventilation space 13 and the shed space. The roof back vent 12 may be provided in at least one of the standing piece 4d, the ventilation piece 4e, and the standing piece 4f, but the roof back vent 12 is provided in the ventilation piece 4e having a relatively large area. A large ventilation air volume can be secured.

野地板小口面対向片４ｂの上部内面側にはロックウールフェルト等により構成される不燃断熱材５が接着剤や粘着テープ等により取り付けられており、野地板２の端部に野地板上面当接片４ａと野地板下面対向片４ｇとを嵌装して嵌合すると該野地板２の小口面２ａに該不燃断熱材５が当接する。換気部材４の野地板２に当接する部分に不燃断熱材５を設けることで、火炎や熱気を受けた換気部材４の熱伝導による野地板２の炭化を軽減することが出来る。 A non-combustible heat insulating material 5 made of rock wool felt or the like is attached to the upper inner surface side of the small piece of the face plate 4b with an adhesive or adhesive tape, and the top face of the field plate 2 is brought into contact with the end of the field plate 2 When the piece 4a and the base plate lower surface facing piece 4g are fitted and fitted, the non-combustible heat insulating material 5 comes into contact with the small edge surface 2a of the base plate 2. By providing the non-combustible heat insulating material 5 at the portion of the ventilation member 4 that comes into contact with the field plate 2, carbonization of the field plate 2 due to heat conduction of the ventilation member 4 that has received flame or hot air can be reduced.

本実施形態では野地板上面当接片４ａの野地板小口面対向片４ｂ側の下方には野地板下面対向片４ｇが存在しないため野地板２の端部に野地板上面当接片４ａと野地板下面対向片４ｇとを嵌装して嵌合する作業が容易である。 In the present embodiment, there is no field board lower surface facing piece 4g below the field board small facet facing piece 4b side of the field board upper surface contacting piece 4a, so that the field board upper surface contacting piece 4a and the field plate 2a are provided at the end of the field board 2. The work of fitting and fitting the bottom plate facing piece 4g is easy.

また、野地板下面対向片４ｇの下面と、水返し片４ｈの外面（図１及び図２の左側面）には、図２（ｃ）に示すように、通気空間13内で熱により膨張して外部通気口11から小屋裏通気口12への通気路を塞ぐ不燃性体積膨張材14が接着剤や粘着テープ等により取り付けられている。不燃性体積膨張材14は、膨張性グラファイト系の防炎、防煙用シール材であって、通過熱風温度が約１８０℃で膨張し始め、十数倍に膨張する性質を有している。不燃性体積膨張材14としては、例えば、オーストリアケミー・リンツ社製の「インツメックス（商品名）」や種々の不燃性体積膨張材が適用可能である。 Further, as shown in FIG. 2C, the lower surface of the base plate lower surface facing piece 4g and the outer surface of the water return piece 4h (the left side surface in FIGS. 1 and 2) are expanded by heat in the ventilation space 13. A non-combustible volume expansion material 14 that closes the air passage from the external vent 11 to the cabin vent 12 is attached with an adhesive, an adhesive tape, or the like. The non-flammable volume expansion material 14 is an expandable graphite-based flameproof / smokeproof seal material, and has a property of starting to expand at a passing hot air temperature of about 180 ° C. and expanding ten times. As the noncombustible volume expansion material 14, for example, “Inzmex (trade name)” manufactured by Austrian Chemie Linz and various noncombustible volume expansion materials are applicable.

野地板下面対向片４ｇに略直交して接続されて垂下される水返し片４ｈにより外部通気口11から吹き込んだ雨水を止めて小屋裏空間への雨水の浸入を防止することが出来る。 The rain return blown from the external vent 11 can be stopped by the water return piece 4h that is connected and drooped substantially orthogonally to the base plate lower surface facing piece 4g, thereby preventing rain water from entering the cabin space.

図１において、17は外装材10を取り付ける外装下地材である。また、水切り材７及び外部通気口11の直下には図示しない支持部材により支持された雨樋15が設けられている。 In FIG. 1, reference numeral 17 denotes an exterior base material to which the exterior material 10 is attached. Further, a rain gutter 15 supported by a support member (not shown) is provided immediately below the draining material 7 and the external vent 11.

上記構成によれば、野地板上面当接片４ａと野地板下面対向片４ｇとにより野地板２の端部上下面を挟持すると共に、釘６により野地板小口面対向片４ｂを野地板２の小口面２ａに固定することで、換気部材４を野地板２の端部に一体的に固定することが出来る。これにより、換気部材４を取り付けるための専用下地材が不要である。また、軒先部分まで野地板２が存在したままで換気部材４を取り付けることが出来るので、軒先部分まで屋根葺き材８を野地板２に安定して固定できる。 According to the above configuration, the top and bottom surfaces of the end of the base plate 2 are sandwiched between the base plate upper surface abutting piece 4 a and the base plate lower surface facing piece 4 g, and the field plate small edge facing piece 4 b is connected to the base plate 2 by the nail 6. The ventilation member 4 can be integrally fixed to the end portion of the base plate 2 by being fixed to the small edge surface 2a. Thereby, the exclusive base material for attaching the ventilation member 4 is unnecessary. Moreover, since the ventilation member 4 can be attached with the field board 2 existing to the eaves part, the roofing material 8 can be stably fixed to the field board 2 up to the eaves part.

また、野地板２の傾斜角度に対応して換気部材４が一体的に傾斜する。これにより、野地板小口面対向片４ｂと外装材当接片４ｃとが接続される角隅部に設けられる外部通気口11が換気部材４の最下部に位置し、換気部材４の通気空間13内に吹き込んだ雨水の排水口を兼ねることが出来る。また、野地板２の傾斜角度に対応して多種類の換気部材４を用意する必要が無い。 Further, the ventilation member 4 is integrally inclined corresponding to the inclination angle of the field plate 2. As a result, the external ventilation holes 11 provided at the corners to which the field board small edge facing piece 4b and the exterior material contact piece 4c are connected are located at the lowermost part of the ventilation member 4, and the ventilation space 13 of the ventilation member 4 is provided. It can also serve as a drain for rainwater blown inside. Moreover, it is not necessary to prepare various types of ventilation members 4 corresponding to the inclination angle of the field board 2.

また、外壁９の外装材10の上面10ａを外装材当接片４ｃに当接して設置することで、野地板２の下面と、外壁９の上面との間に、小屋裏通気口12と小屋裏空間とを連通する通気路16を形成することが出来る。また、建物全周において換気部材４を設置しない箇所が存在する場合には、外装材10の上面10ａを野地板２の下面に当接するだけで良く、換気部材４を設置した箇所と、換気部材４を設置しない箇所とで外装材10の取り合いが容易である。 Further, by installing the upper surface 10a of the exterior material 10 of the outer wall 9 in contact with the exterior material abutting piece 4c, the back of the hut vent 12 and the hut are provided between the lower surface of the field board 2 and the upper surface of the outer wall 9. An air passage 16 communicating with the back space can be formed. In addition, when there is a place where the ventilation member 4 is not installed all around the building, it is only necessary to abut the upper surface 10a of the exterior material 10 against the lower surface of the field board 2, and the location where the ventilation member 4 is installed and the ventilation member Interfacing of the exterior material 10 is easy with the place where 4 is not installed.

また、通気空間13内で熱により膨張して外部通気口11から小屋裏通気口12への通気路を塞ぐ不燃性体積膨張材14を設けたことで、図２（ｃ）に示すように、火災等で発生する熱により不燃性体積膨張材14が通気空間13内で膨張して外部通気口11から小屋裏通気口12への通気路を塞ぎ、小屋裏空間への火炎の進入を防止することが出来る。 In addition, by providing a non-combustible volume expansion material 14 that expands due to heat in the ventilation space 13 and closes the ventilation path from the external ventilation port 11 to the cabin back ventilation port 12, as shown in FIG. The non-combustible volume expansion material 14 expands in the ventilation space 13 due to heat generated by a fire or the like, and blocks the ventilation path from the external ventilation port 11 to the hut ventilation port 12 to prevent the entry of flame into the shed space. I can do it.

次に図３を用いて本発明に係る換気部材の第２実施形態について説明する。前記第１実施形態では、野地板小口面対向片４ｂの下部に外部通気口11を設けた場合の構成について説明したが、本実施形態では、外装材当接片４ｃの野地板小口面対向片４ｂ側に複数のスリット形状の外部通気口11を設けたものである。また、野地板下面対向片４ｇの下面と、野地板小口面対向片４ｂの下部内面（図３（ｂ）の右側面）には、図３（ｃ）に示すように、通気空間13内で熱により膨張して外部通気口11から小屋裏通気口12への通気路を塞ぐ不燃性体積膨張材14が接着剤や粘着テープ等により取り付けられている。 Next, 2nd Embodiment of the ventilation member which concerns on this invention is described using FIG. In the first embodiment, the configuration in the case where the external vent 11 is provided in the lower portion of the field board small edge surface facing piece 4b has been described. However, in this embodiment, the field plate small edge surface facing piece of the exterior material contact piece 4c is described. A plurality of slit-shaped external vent holes 11 are provided on the 4b side. Further, as shown in FIG. 3 (c), the lower surface of the field plate lower surface facing piece 4g and the lower inner surface (the right side surface of FIG. 3 (b)) of the field board small edge surface facing piece 4b are within the ventilation space 13. A noncombustible volume expansion material 14 that is expanded by heat and blocks the air passage from the external vent 11 to the hut vent 12 is attached by an adhesive, an adhesive tape, or the like.

本実施形態の外部通気口11も野地板小口面対向片４ｂと外装材当接片４ｃとの間で外気側（図１及び図３の左側）に設けられ、野地板下面対向片４ｇと外装材当接片４ｃとの間に設けられる通気空間13と外気とを連通する。本実施形態の小屋裏通気口12も野地板下面対向片４ｇと外装材当接片４ｃとの接続部となる通気片４ｅに設けられ、通気空間13と小屋裏空間とを連通する。外部通気口11は外装材当接片４ｃに設けられる。 The external vent 11 of the present embodiment is also provided on the outside air side (left side in FIGS. 1 and 3) between the field board small facet facing piece 4b and the exterior material abutting piece 4c. The ventilation space 13 provided between the material contact piece 4c and the outside air communicate with each other. The shed back vent 12 of this embodiment is also provided in the vent piece 4e, which is a connecting portion between the base plate lower surface facing piece 4g and the exterior material abutting piece 4c, and communicates the vent space 13 with the shed space. The external vent 11 is provided in the exterior material abutting piece 4c.

尚、図示しないが、野地板小口面対向片４ｂの下部と、外装材当接片４ｃの野地板小口面対向片４ｂ側との両方に独立した複数のスリット形状の外部通気口11を設けても良いし、野地板小口面対向片４ｂの下部から外装材当接片４ｃの野地板小口面対向片４ｂ側に亘って連続した複数のスリット形状の外部通気口11を設けても良い。他の構成は、前記第１実施形態と同様に構成され、同様の効果を得ることが出来る。 Although not shown, a plurality of independent slit-shaped external vent holes 11 are provided on both the lower part of the field board small edge surface facing piece 4b and both the exterior material contact piece 4c and the field plate small edge surface facing piece 4b side. Alternatively, a plurality of slit-shaped external vent holes 11 may be provided which are continuous from the lower portion of the field board small edge surface facing piece 4b to the field plate small edge surface facing piece 4b side of the exterior material contact piece 4c. Other configurations are the same as those in the first embodiment, and the same effects can be obtained.

次に図４及び図５を用いて本発明に係る換気部材の第３実施形態について説明する。 Next, a third embodiment of the ventilation member according to the present invention will be described with reference to FIGS.

本実施形態の換気部材４は、外側部材４Ａと内側部材４Ｂとの二部材から構成され、互いの軒先の野地板２の上面に当接する野地板上面当接片４ａと、該野地板２の小口面２ａに不燃断熱材５ａを介在して固定される野地板小口面対向片４ｂとが接着剤や粘着テープ、或いはスポット溶接等により一体的に取り付けられている。外側部材４Ａは、軒先の野地板２の上面に当接する野地板上面当接片４ａと、該野地板上面当接片４ａに略直交して接続されて垂下され、該野地板２の小口面２ａに不燃断熱材５ａを介在して固定される野地板小口面対向片４ｂと、該野地板小口面対向片４ｂに所定の傾斜角度で接続され、断面く字形状の水切り片４ｉとを有して構成される。 The ventilation member 4 of the present embodiment is composed of two members, an outer member 4A and an inner member 4B, a field plate upper surface contact piece 4a that contacts the upper surface of the field plate 2 at the eaves of each other, and the field plate 2 The base plate facet face facing piece 4b fixed to the facet surface 2a with an incombustible heat insulating material 5a is integrally attached by an adhesive, an adhesive tape, spot welding or the like. The outer member 4A is a base plate upper surface contact piece 4a that is in contact with the upper surface of the eaves field plate 2, and is connected to the field plate upper surface contact piece 4a so as to be substantially perpendicular to and drooped. 2a is provided with a non-combustible heat insulating material 5a and a ground plate facet facing piece 4b, and is connected to the field board facet face facing piece 4b at a predetermined inclination angle and has a cross-sectionally shaped draining piece 4i. Configured.

一方、内側部材４Ｂは、軒先の野地板２の上面に当接する野地板上面当接片４ａと、該野地板上面当接片４ａに略直交して接続されて垂下され、該野地板２の小口面２ａに不燃断熱材５を介在して当接する野地板小口面対向片４ｂと、該野地板小口面対向片４ｂに略直交して接続され、該野地板上面当接片４ａと略平行に配置されると共に、野地板２の下面に不燃断熱材５ｂを介在して当接する野地板下面対向片４ｇと、該野地板下面対向片４ｇに略直交して接続される起立片４ｆと、該起立片４ｆに略直交して接続され、複数のスリット形状の小屋裏通気口12が形成された通気片４ｅと、該通気片４ｅに略直交して接続される起立片４ｄと、該起立片４ｄに略直交して接続され、該野地板２の下方に設けられる外壁９の外装材10の上面10ａに当接する外装材当接片４ｃと、該外装材当接片４ｃに所定の傾斜角度で接続され、開閉弁18の台座18ａを挿入して保持する断面Ｕ字形状のクリップ片４ｊとを有して構成される。 On the other hand, the inner member 4B is drooped by being connected substantially perpendicularly to the field board upper surface contact piece 4a that contacts the upper surface of the eaves field board 2 and the field board upper surface contact piece 4a. A base plate small face surface facing piece 4b that contacts the small face surface 2a with an incombustible heat insulating material 5 interposed therebetween, and is connected substantially orthogonal to the field plate small face surface facing piece 4b and substantially parallel to the field plate top face contact piece 4a. A ground plate lower surface facing piece 4g that is in contact with the lower surface of the field plate 2 with an incombustible heat insulating material 5b interposed therebetween, and a standing piece 4f connected substantially orthogonally to the field plate lower surface facing piece 4g, A vent piece 4e connected to the upright piece 4f substantially orthogonally and formed with a plurality of slit-shaped cabin back vents 12; an upright piece 4d connected substantially orthogonally to the vent piece 4e; The upper surface 10a of the exterior material 10 of the outer wall 9 connected to the piece 4d substantially perpendicularly and provided below the base plate 2 An exterior material abutting piece 4c that is in contact, and a clip piece 4j that is connected to the exterior material abutting piece 4c at a predetermined inclination angle and has a U-shaped cross section for inserting and holding the base 18a of the on-off valve 18; Composed.

尚、本実施形態では、換気部材４を外側部材４Ａと内側部材４Ｂとの二部材から構成した一例について説明するが、一枚の金属板や樹脂板等を軒先の野地板２の上面に当接する野地板上面当接片４ａの端部で折り返して該野地板上面当接片４ａと野地板小口面対向片４ｂとを二枚重ねて構成しても良い。 In this embodiment, an example in which the ventilation member 4 is composed of two members, the outer member 4A and the inner member 4B, will be described. However, a single metal plate, a resin plate, or the like is applied to the top surface of the eaves field plate 2. It may be configured such that the field plate upper surface contact piece 4a and the field plate small edge facing piece 4b are overlapped with each other by folding back at the end of the field plate upper surface contact piece 4a in contact.

本実施形態の換気部材４も金属板からなる内側部材４Ｂに小屋裏通気口12をプレス加工により形成し、更に金属板からなる外側部材４Ａと内側部材４Ｂとを折り曲げ加工により成形したものである。尚、外側部材４Ａ及び内側部材４Ｂはアルミニウム製や合成樹脂製を採用することも出来る。 The ventilation member 4 of the present embodiment is also formed by forming the cabin back vent 12 in the inner member 4B made of a metal plate by pressing, and further forming the outer member 4A and the inner member 4B made of metal by bending. . The outer member 4A and the inner member 4B can be made of aluminum or synthetic resin.

本実施形態では、外装材当接片４ｃの延長線上に外部通気口19が設けられる。即ち、外側部材４Ａの野地板小口面対向片４ｂに接続される水切り片４ｉと、内側部材４Ｂの外装材当接片４ｃに接続されるクリップ片４ｊとの間に形成される開口部が外部通気口19として構成される。 In the present embodiment, an external vent 19 is provided on the extension line of the exterior material contact piece 4c. That is, the opening formed between the draining piece 4i connected to the field plate small face facing piece 4b of the outer member 4A and the clip piece 4j connected to the exterior material abutting piece 4c of the inner member 4B is externally provided. It is configured as a vent 19.

断面Ｕ字形状のクリップ片４ｊに台座18ａが挿入して保持された開閉弁18は、図５（ｃ）に示すように、外部通気口19から野地板下面対向片４ｇと外装材当接片４ｃとの間に設けられる通気空間13に吹き込む風力によって作動し、該外部通気口19から小屋裏通気口12への通気路を塞ぐ。外側部材４Ａの野地板小口面対向片４ｂに接続される水切り片４ｉの内面で開閉弁18に対向する位置には、ＥＰＤＭ（エチレン−プロピレン−ジエンゴム）発泡体等により構成されるクッション材20が設けられており、開閉弁18が作動すると、該開閉弁18の先端がクッション材20に接触して衝撃が緩和され、衝撃音の発生を防止する。 As shown in FIG. 5 (c), the on-off valve 18 in which the pedestal 18a is inserted and held in the clip piece 4j having a U-shaped cross section is connected to the base plate lower surface facing piece 4g and the exterior material contact piece from the external vent 19 It operates by the wind force blown into the ventilation space 13 provided between the external ventilation port 4c and closes the ventilation path from the external ventilation port 19 to the cabin back ventilation port 12. A cushion material 20 made of an EPDM (ethylene-propylene-diene rubber) foam or the like is disposed at a position facing the on-off valve 18 on the inner surface of the draining piece 4i connected to the field plate small edge facing piece 4b of the outer member 4A. When the on-off valve 18 is operated, the tip of the on-off valve 18 comes into contact with the cushion material 20, so that the impact is alleviated and the generation of an impact sound is prevented.

本実施形態においても、図４に示すように、野地板２の傾斜角度に対応して換気部材４が一体的に傾斜する。これにより、外装材当接片４ｃの延長線上に設けられる外部通気口19が換気部材４の最下部に位置し、該換気部材４内に吹き込んだ雨水の排水口を兼ねることが出来る。また、野地板２の傾斜角度に対応して多種類の換気部材を用意する必要が無い。 Also in this embodiment, as shown in FIG. 4, the ventilation member 4 is integrally inclined corresponding to the inclination angle of the field plate 2. Thereby, the external ventilation port 19 provided on the extension line of the exterior material abutting piece 4 c is located at the lowermost part of the ventilation member 4, and can also serve as a drainage port for the rainwater blown into the ventilation member 4. Moreover, it is not necessary to prepare many types of ventilation members corresponding to the inclination angle of the field board 2.

また、外部通気口19から通気空間13に吹き込む風力によって作動し、該外部通気口19から小屋裏通気口12への通気路を塞ぐ開閉弁18を設けたことで、台風等の吹き込みにより開閉弁18が作動して外部通気口19から小屋裏通気口12への通気路を塞ぎ、小屋裏空間への雨水の浸入を防止することが出来る。開閉弁18により止められた雨水は外装材当接片４ｃの延長線上に設けられる外部通気口19から排水される。他の構成は、前記各実施形態と同様に構成され、同様の効果を得ることが出来る。 In addition, an on-off valve 18 that operates by wind force blown into the ventilation space 13 from the external vent 19 and closes the air passage from the external vent 19 to the back of the hut 12 is provided by blowing in typhoon or the like. 18 operates to block the air passage from the external vent 19 to the attic vent 12 and prevent rainwater from entering the attic space. Rainwater stopped by the on-off valve 18 is drained from an external vent 19 provided on an extension line of the exterior material abutting piece 4c. Other configurations are the same as those in the above-described embodiments, and the same effects can be obtained.

本発明の活用例として、軒先の野地板の端部に設けられて外気と小屋裏空間とを連通して換気する換気部材に適用出来る。 As an application example of the present invention, the present invention can be applied to a ventilation member that is provided at an end portion of a field plate at the eaves and ventilates the outside air in communication with the cabin space.

１ …垂木
２ …野地板
２ａ …小口面
３ …広小舞カバー
４ …換気部材
４Ａ …外側部材
４Ｂ …内側部材
４ａ …野地板上面当接片
４ｂ …野地板小口面対向片
４ｃ …外装材当接片
４ｄ …起立片
４ｅ …通気片
４ｆ …起立片
４ｇ …野地板下面対向片
４ｈ …水返し片
４ｉ …水切り片
４ｊ …クリップ片
５，５ａ，５ｂ …不燃断熱材
６ …釘
７ …水切り材
８ …屋根葺き材
９ …外壁
10 …外装材
10ａ …上面
11 …外部通気口
12 …小屋裏通気口
13 …通気空間
14 …不燃性体積膨張材
15 …雨樋
16 …通気路
17 …外装下地材
18 …開閉弁
18ａ …台座
19 …外部通気口
20 …クッション材 DESCRIPTION OF SYMBOLS 1 ... Rafter 2 ... Field plate 2a ... Small edge surface 3 ... Hirokomai cover 4 ... Ventilation member 4A ... Outer member 4B ... Inner member 4a ... Field plate upper surface contact piece 4b ... Field plate small edge surface facing piece 4c ... Exterior material Contact piece 4d ... Standing piece 4e ... Venting piece 4f ... Standing piece 4g ... Base plate lower surface facing piece 4h ... Water return piece 4i ... Draining piece 4j ... Clip piece 5, 5a, 5b ... Nonflammable heat insulating material 6 ... Nail 7 ... Draining material 8 ... Roofing material 9 ... Exterior wall
10… Exterior material
10a ... Top surface
11… External vent
12… Shut back vent
13… Ventilation space
14… Non-combustible volume expansion material
15 ... gutter
16 ... Ventilation channel
17… Exterior base material
18… Open / close valve
18a ... pedestal
19… External vent
20… Cushion material

Claims

軒先の野地板の上面に当接する野地板上面当接片と、
前記野地板上面当接片に接続され、前記野地板の小口面に対向する野地板小口面対向片と、
前記野地板の下方に設けられる外壁の外装材の上面に当接する外装材当接片と、
前記野地板小口面対向片と前記外装材当接片との間で外気側に設けられ、前記野地板と前記外装材当接片との間に設けられる通気空間と外気とを連通する外部通気口と、
小屋裏空間側に設けられ、前記通気空間と前記小屋裏空間とを連通する小屋裏通気口と、
を有し、
前記外部通気口は、前記野地板小口面対向片と前記外装材当接片とが接続される角隅部に設けられるか、或いは前記野地板小口面対向片と前記外装材当接片との延長線上に位置する角隅部に設けられるか、或いは前記外装材当接片に設けられるか、或いは前記外装材当接片の延長線上に設けられることを特徴とする換気部材。 A field plate upper surface contact piece that contacts the upper surface of the eaves field plate,
Connected to the top surface contact piece of the base plate, a base plate small surface facing piece facing the small surface of the field plate,
An exterior material abutting piece that abuts on the upper surface of the exterior material of the outer wall provided below the base plate,
External ventilation provided between the field plate small edge facing piece and the exterior material abutting piece on the outside air side, and communicating between the ventilation space provided between the field plate and the exterior material contact piece and the outside air Mouth,
A hut vent that is provided on the shed space side and communicates the vent space and the shed space;
Have
The external vent is provided at a corner portion where the field plate small edge surface facing piece and the exterior material abutting piece are connected, or between the field plate small edge surface facing piece and the exterior material contact piece. A ventilation member provided at a corner portion located on an extension line, provided on the exterior material abutting piece, or provided on an extension line of the exterior material abutment piece.

軒先の野地板の上面に当接する野地板上面当接片と、
前記野地板上面当接片に接続され、前記野地板の小口面に対向する野地板小口面対向片と、
前記野地板の下面に対向する野地板下面対向片と、
前記野地板の下方に設けられる外壁の外装材の上面に当接する外装材当接片と、
前記野地板小口面対向片と前記外装材当接片との間で外気側に設けられ、前記野地板下面対向片と前記外装材当接片との間に設けられる通気空間と外気とを連通する外部通気口と、
小屋裏空間側に設けられ、前記通気空間と小屋裏空間とを連通する小屋裏通気口と、
を有し、
前記野地板小口面対向片と前記野地板の小口面との間、または前記野地板と前記野地板下面対向片との間に断熱材が設けられたことを特徴とする換気部材。 A field plate upper surface contact piece that contacts the upper surface of the eaves field plate,
Connected to the top surface contact piece of the base plate, a base plate small surface facing piece facing the small surface of the field plate,
A field plate lower surface facing piece facing the lower surface of the field plate;
An exterior material abutting piece that abuts on the upper surface of the exterior material of the outer wall provided below the base plate,
Provided on the outside air side between the field plate small face facing piece and the exterior material contact piece, and communicates the ventilation space provided between the field plate lower surface facing piece and the exterior material contact piece and the outside air. External vents to
A hut back vent that is provided on the shed back side and communicates the ventilation space with the shed space;
Have
A ventilation member, wherein a heat insulating material is provided between the field plate small face facing piece and the small face of the field plate, or between the field plate and the field plate bottom face facing piece.

前記外部通気口から前記通気空間に吹き込む風力によって作動し、該外部通気口から前記小屋裏通気口への通気路を塞ぐ開閉弁を設けたことを特徴とする請求項１または請求項２に記載の換気部材。 The switch according to claim 1 or 2, further comprising an open / close valve that is actuated by wind force blown from the external vent into the ventilation space and blocks an air passage from the external vent to the cabin back vent. Ventilation parts.

前記通気空間内に熱によって膨張する不燃性体積膨張材を設けたことを特徴とする請求項１〜３のいずれか１項に記載の換気部材。 The ventilation member according to any one of claims 1 to 3, wherein a non-combustible volume expansion material that expands by heat is provided in the ventilation space.