JP5188692B2 - Folding duct and mounting method of the folding duct - Google Patents

Folding duct and mounting method of the folding duct Download PDF

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JP5188692B2
JP5188692B2 JP2006274027A JP2006274027A JP5188692B2 JP 5188692 B2 JP5188692 B2 JP 5188692B2 JP 2006274027 A JP2006274027 A JP 2006274027A JP 2006274027 A JP2006274027 A JP 2006274027A JP 5188692 B2 JP5188692 B2 JP 5188692B2
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duct
heat insulating
insulating material
folding
wall plate
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JP2008089288A (en
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勇 梶野
富士雄 田村
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Takasago Thermal Engineering Co Ltd
Kume Sekkei KK
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Takasago Thermal Engineering Co Ltd
Kume Sekkei KK
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Description

本発明は、折り畳み可能な折り畳み式ダクトおよび折り畳み式ダクトの取付方法に関する。   The present invention relates to a foldable foldable duct and a method for attaching the foldable duct.

断面が矩形（四角形）な角ダクトなどにおいて、折り畳みが可能な折り畳み式ダクトが知られている（例えば、特許文献１参照。）。この折り畳み式ダクトは、例えば、４つの壁板で筒状に構成され、壁板と壁板との接合部である角部が回動自在であり、角部を回動させて壁板が重なるように全体を折り畳む（偏平させる）ことができる。また、折り畳んだ状態から角部を回動させて、筒状に展開することができるものである。このような折り畳み式ダクトは、ダクトを生産する工場からダクトを取り付ける取付現場（建設現場など）までの運搬費用や、ダクトの保管費用などを軽減するために、開発され、使用されている。すなわち、折り畳むことでダクトの容積を小さくし、運搬容積や保管容積などを小さくして費用を軽減することができるものである。
特開２００４−３８２１号公報 A folding duct that can be folded in a rectangular duct having a rectangular (quadrangle) cross section is known (for example, see Patent Document 1). For example, this foldable duct is formed in a cylindrical shape with four wall plates, and a corner portion which is a joint portion between the wall plates and the wall plate is rotatable, and the wall plates are overlapped by rotating the corner portions. The whole can be folded (flattened). Moreover, a corner | angular part can be rotated from the folded state, and it can expand | deploy to a cylinder shape. Such a foldable duct has been developed and used in order to reduce the transportation cost from the factory that produces the duct to the installation site (such as a construction site) where the duct is installed and the storage cost of the duct. That is, by folding, the volume of the duct can be reduced, the transportation volume, the storage volume, and the like can be reduced, thereby reducing the cost.
JP 2004-3821 A

ところで、ダクトの取付現場においては、必要に応じてダクトに断熱処理を施している。すなわち、ダクトを天井内などの所定の取付場所に取り付けた後に、必要に応じて、グラスウール製でシート状（帯状）の断熱材などをダクトの外周に巻き付けている。このような断熱処理は、折り畳み式ダクトの場合も同様であり、折り畳んだ状態でダクトを取付現場に搬入し、ダクトを筒状に展開して所定の取付場所に取り付ける。その後、必要に応じて、断熱材をダクトの外周に巻き付けるなどしている。   By the way, in the installation site of a duct, the duct is heat-insulated as needed. That is, after the duct is attached to a predetermined attachment location such as in the ceiling, a sheet-like (band-like) heat insulating material made of glass wool is wound around the outer periphery of the duct as necessary. Such a heat insulation process is the same also in the case of a foldable duct, and the duct is carried into an installation site in a folded state, and the duct is expanded into a cylindrical shape and attached to a predetermined installation location. Then, if necessary, a heat insulating material is wound around the outer periphery of the duct.

しかしながら、このような断熱処理は、ダクトが天井内などに取り付けられた状態で行うため、施工がしづらく、施工に多大な労力と時間とを要するばかりでなく、取付現場において断熱材の廃材が発生し、廃棄処理などを要することになる。特に近年、建設現場などにおいては、建設・施工スケジュールや、廃棄処理費などを含む建設・施工費用などが厳しく制限、管理されており、迅速にダクトの断熱処理を行うとともに、取付現場に廃材を発生させないことなどが急務となっている。   However, since such a heat insulation process is performed in a state where the duct is installed in the ceiling or the like, it is difficult to perform the construction, and not only the labor and time are required for the construction, but also the waste material of the heat insulating material at the installation site. Will occur and will require disposal. Especially in recent years, construction and construction schedules and construction and construction costs, including disposal costs, have been severely restricted and managed at construction sites. There is an urgent need not to generate it.

そこで本発明は、取付現場における断熱処理を削減あるいは軽減することができ、しかも断熱材の廃材の発生を削減することができる折り畳み式ダクトおよび折り畳み式ダクトの取付方法を提供することを目的とする。   Then, this invention aims at providing the attachment method of the folding type duct and folding type duct which can reduce or reduce the heat insulation process in an installation field, and can reduce generation | occurrence | production of the waste material of a heat insulating material. .

上記目的を達成するために請求項１に記載の発明は、壁板を四方に配設して筒状とし、前記壁板と壁板との接合部である角部が回動自在であり、前記角部が回動することで前記壁板が重なるように全体が折り畳んだ状態となる折り畳み式ダクトであって、シート状の断熱材が、前記四方の壁板の外周面に巻き付き、かつ少なくとも一方の開口端部から外側に突出するように配設され、前記突出した断熱材の部分が角部に沿って切断されて前記各壁板に対して設けられた接続断熱部が、前記壁板の表面側および前記開口端部の外側に折り曲げ自在となっている、ことを特徴としている。
（作用）
このダクトを折り畳んだ状態で取付現場に搬入し、ダクトを筒状にして所定の取付場所に取り付けると、外周面に断熱材が設けられたダクトが取り付けられることになる。また、例えば、このダクトが他のダクトに接続される開口端部側に接続断熱部を設け、このダクトを他のダクトに接続させた状態で取り付ける。そして、他のダクトとの接続部および他のダクトを接続断熱部で覆うことで、接続部および他のダクトが断熱処理される。
In order to achieve the above-mentioned object, the invention according to claim 1 is arranged such that the wall plate is arranged in four directions to form a cylinder, and a corner portion which is a joint portion between the wall plate and the wall plate is rotatable, The folding duct is in a state of being folded so that the wall plates overlap with each other when the corners rotate, and the sheet-like heat insulating material is wound around the outer peripheral surface of the four wall plates, and at least A connection heat insulating portion that is disposed so as to protrude outward from one opening end portion, and is provided for each of the wall plates by cutting a portion of the protruding heat insulating material along a corner portion, the wall plate It is characterized in that it can be bent to the front surface side and the outside of the opening end .
(Function)
When this duct is folded and carried into the installation site, and the duct is formed in a cylindrical shape and attached to a predetermined installation location, a duct having a heat insulating material provided on the outer peripheral surface is attached. For example, a connection heat insulation part is provided in the opening edge part side which this duct is connected to another duct, and this duct is attached in the state connected to the other duct. And a connection part and another duct are heat-insulated by covering a connection part with another duct, and another duct with a connection heat insulation part.

請求項２に記載の発明は、請求項１に記載の折り畳み式ダクトにおいて、一枚の前記壁板の外周面に固定手段が設けられ、前記断熱材の両端部が前記固定手段によって前記一枚の壁板に固定されている、ことを特徴としている。
（作用）
一枚の壁板の外周面に設けられた固定手段によって断熱材の両端部が固体されているため、つまり、一枚の壁板のみに対して断熱材が固体されているため、断熱材の自由度が高く、角部の回動（壁板）に良好に追従する。
According to a second aspect of the present invention, in the foldable duct according to the first aspect, fixing means are provided on an outer peripheral surface of the one wall plate, and both ends of the heat insulating material are fixed to the one sheet by the fixing means. It is characterized by being fixed to the wall board.
(Function)
Since both ends of the heat insulating material are solidified by the fixing means provided on the outer peripheral surface of one wall plate, that is, since the heat insulating material is solid only for one wall plate, It has a high degree of freedom and follows the corner rotation (wall plate) well.

請求項３に記載の発明は、請求項１または２に記載の折り畳み式ダクトにおいて、前記断熱材の外周に、前記断熱材を前記壁板側に押え付ける密着部材が設けられていることを特徴としている。
（作用）
密着部材によって断熱材が壁板側に押え付けられ、断熱材が壁板に密着する。
 According to a third aspect of the present invention, in the foldable duct according to the first or second aspect , an adhesion member for pressing the heat insulating material against the wall plate is provided on the outer periphery of the heat insulating material. It is said.
(Function)
The heat insulating material is pressed against the wall plate by the contact member, and the heat insulating material is in close contact with the wall plate.

請求項４に記載の発明は、壁板を四方に配設して筒状とし、前記壁板と壁板との接合部である角部が回動自在であり、前記角部が回動することで前記壁板が重なるように全体が折り畳んだ状態となる折り畳み式ダクトの取付方法であって、前記折り畳み式ダクトを取付現場に搬入する前に、前記折り畳み式ダクトを筒状にした状態で前記壁板の外周面にシート状の断熱材を巻き付けるように配設し、かつ、前記断熱材を少なくとも一方の開口端部よりも外側に突出させ、角部に沿って切断して前記各壁板に対して接続断熱部を設け、
前記折り畳み式ダクトを折り畳み、かつ前記各接続断熱部を前記壁板の表面側に折り曲げた状態で取付現場に搬入し、前記折り畳み式ダクトを筒状にして所定の取付場所に取り付け、前記開口端部に他のダクトを接続した後に、前記各接続断熱部を折り返して前記他のダクト側を覆う、ことを特徴としている。
また、請求項５に記載の発明は、請求項４に記載の取付方法において、前記折り返した接続断熱部の外周面を密着部材で覆って、前記接続断熱部を前記他のダクト側に押え付ける、ことを特徴としている。
According to a fourth aspect of the present invention, the wall plate is arranged in four directions to form a cylindrical shape, the corner portion that is a joint portion between the wall plate and the wall plate is rotatable, and the corner portion is rotated. In this way, the folding duct is attached in a folded state so that the wall plates overlap with each other, and before the folding duct is brought into the installation site, the folding duct is in a cylindrical shape. Each of the walls is arranged by winding a sheet-like heat insulating material around the outer peripheral surface of the wall plate, and projecting the heat insulating material outward from at least one opening end, and cutting along the corners. A connection insulation is provided for the plate,
Folding folding the folding duct, and the carried on the mounting site in a state that each connection insulation portion is folded on the surface side of the wall plate, attached to a predetermined attachment location by the folding duct to the tubular, the opening After connecting another duct to the end, each connection heat insulating part is folded back to cover the other duct side .
The invention according to claim 5 is the attachment method according to claim 4, wherein the outer peripheral surface of the folded connection heat insulating portion is covered with a close contact member, and the connection heat insulating portion is pressed against the other duct side. It is characterized by that.

請求項１に記載の発明によれば、壁板の外周面に予め断熱材が設けられているため、このダクトを取付現場に搬入し、ダクトを筒状にして所定の取付場所に取り付けることで、外周面に断熱材が設けられたダクトが取り付けられたことになる。つまり、取付現場においてダクトに断熱処理する必要がなくなり、あるいは些細な調整作業などだけですみ、断熱処理に要する労力と時間とを著しく軽減することができる。しかも、取付現場において断熱処理する必要がなくなり、あるいは些細な調整作業などだけですむため、取付現場における断熱材の廃材の発生を削減することができる。さらには、壁板を折り畳んで各接続断熱部を壁板の表面側に折り曲げることで、ダクト全体を小さく折り畳んだ状態で保管したり取付現場まで運搬したりすることができ、保管容積や運搬容積などを小さくして費用を軽減することができる。
According to invention of Claim 1, since the heat insulating material is previously provided in the outer peripheral surface of the wall board, this duct is carried in to an installation site, and a duct is made into a cylinder shape and attached to a predetermined attachment place. A duct having a heat insulating material provided on the outer peripheral surface is attached. That is, it is not necessary to insulate the duct at the installation site, or only a small adjustment work is required, and the labor and time required for the insulation treatment can be significantly reduced. In addition, since it is not necessary to insulate at the installation site or only a small adjustment work is required, generation of waste material of the insulation material at the installation site can be reduced. Furthermore, by folding the wall plate and folding each connection insulation to the surface side of the wall plate, the entire duct can be stored in a small folded state or transported to the installation site. Etc. can be reduced to reduce costs.

また、各接続断熱部を開口端部の外側に折り曲げて、他のダクトとの接続部および他のダクトを接続断熱部で覆うことで、このダクトと接続する他のダクトなどとの接続部や当該他のダクトなどを接続断熱部で断熱処理することができる。つまり接続部や他のダクトなどを別の断熱材で別途断熱処理する必要がなくなり、断熱処理に要する労力と時間とを著しく軽減することができる。しかも、別の断熱材で断熱処理する必要がないため、断熱材の廃材の発生を削減することができる。
 Also, by bending each connection heat insulation part to the outside of the opening end and covering the connection part with other ducts and other ducts with the connection heat insulation part, the connection parts with other ducts connected to this duct, etc. The said other duct etc. can be heat-insulated with a connection heat insulation part. That is, it is not necessary to separately insulate the connection part and other ducts with another heat insulating material, and labor and time required for the heat insulating process can be significantly reduced. And since it is not necessary to heat-process with another heat insulating material, generation | occurrence | production of the waste material of heat insulating material can be reduced.

請求項２に記載の発明によれば、一枚の壁板の外周面に設けられた固定手段によって断熱材が固体されているため、断熱材の自由度が高く、角部の回動に良好に追従する。つまり、ダクトの折り畳みや筒状への展開に際して、断熱材が壁板に良好に追従し、ダクトの取付作業性や運搬性などが損なわれない。
According to the second aspect of the present invention, since the heat insulating material is solidified by the fixing means provided on the outer peripheral surface of one wall plate, the degree of freedom of the heat insulating material is high and the corner portion is well rotated. Follow. That is, when the duct is folded or expanded into a cylindrical shape, the heat insulating material follows the wall plate well, and the mounting workability and transportability of the duct are not impaired.

請求項３に記載の発明によれば、断熱材を壁板側に押え付ける密着部材が設けられているため、断熱材の壁板への密着が良好となり、断熱材による断熱効果が高められる。
According to invention of Claim 3 , since the contact | adherence member which presses down a heat insulating material to a wall board side is provided, the contact | adherence to the wall board of a heat insulating material becomes favorable, and the heat insulation effect by a heat insulating material is improved.

請求項４に記載の発明によれば、ダクトを取付現場に搬入する前に、壁板の外周面に断熱材を配設するため、取付現場においてダクトに断熱処理する必要がなくなり、あるいは些細な調整作業などだけですみ、断熱処理に要する労力と時間とを著しく軽減することができる。しかも、取付現場において断熱処理する必要がなくなり、あるいは些細な調整作業などだけですむため、取付現場における断熱材の廃材の発生を削減することができる。また、ダクトを折り畳んで接続断熱部を壁板の表面側に折り曲げた状態で取付現場に搬入するため、運搬容積などを小さくして費用を軽減することができる。さらに、接続断熱部を折り返して他のダクト側を覆うことで、接続部や他のダクトなどを別の断熱材で別途断熱処理する必要がなくなり、断熱処理に要する労力と時間とを著しく軽減することができる。しかも、別の断熱材で断熱処理する必要がないため、断熱材の廃材の発生を削減することができる。
また、請求項５に記載の発明によれば、折り返した接続断熱部を密着部材で覆って接続断熱部を他のダクト側に押え付けるため、接続断熱部による断熱効果が高められる。 According to the fourth aspect of the present invention, since the heat insulating material is disposed on the outer peripheral surface of the wall plate before the duct is carried into the installation site, it is not necessary to insulate the duct at the installation site, or is trivial. Only adjustment work is required, and the labor and time required for heat insulation treatment can be significantly reduced. In addition, since it is not necessary to insulate at the installation site or only a small adjustment work is required, generation of waste material of the insulation material at the installation site can be reduced. Further, since the duct is folded and the connection heat insulating portion is folded to the surface side of the wall plate, it is carried into the installation site, so that it is possible to reduce the transportation volume and reduce the cost. Furthermore, by folding the connection heat insulation part and covering the other duct side, it is not necessary to separately insulate the connection part and other ducts with another heat insulating material, and the labor and time required for the heat insulation process are significantly reduced. be able to. And since it is not necessary to heat-process with another heat insulating material, generation | occurrence | production of the waste material of heat insulating material can be reduced.
Further, according to the invention described in claim 5, since the folded connection heat insulating portion is covered with the adhesion member and the connection heat insulating portion is pressed against the other duct side, the heat insulating effect by the connection heat insulating portion is enhanced.

以下、この発明を図示の実施の形態に基づいて説明する。   The present invention will be described below based on the illustrated embodiments.

図１は、この発明の実施の形態に係る折り畳み式ダクト１を示す斜視図である。この折り畳み式ダクト１は、主として、ダクト本体２と、このダクト本体２の外周面を覆うように配設された断熱マット（断熱材）３と、この断熱マット３の外周に配設された金網（密着部材）４とを備えている。   FIG. 1 is a perspective view showing a foldable duct 1 according to an embodiment of the present invention. The foldable duct 1 mainly includes a duct body 2, a heat insulating mat (heat insulating material) 3 disposed so as to cover the outer peripheral surface of the duct main body 2, and a wire mesh disposed on the outer periphery of the heat insulating mat 3. (Contact member) 4.

ダクト本体２は、図２に示すように、亜鉛鉄板製の４枚の壁板２１〜２４を四方に配設して、断面が四角形な筒状とした角ダクトである。このダクト本体２は、壁板２１〜２４と壁板２１〜２４との接合部である角部が回動自在であり、角部が回動することで、壁板２１〜２４が重なるようにして全体が折り畳んだ状態となったり、筒状に展開したりできるようになっている。すなわち、第１の壁板２１と第２の壁板２２との角部を例にして説明すると、図３に示すように、第１の壁板２１の長手方向（ダクト本体２の軸線方向）に延びる一端縁部に、カール状のシングルハゼ２１ａが形成されている。一方、第２の壁板２２の長手方向に延びる一端縁部に、シングルハゼ２１ａと係合するカール状のダブルハゼ２２ａが形成され、シングルハゼ２１ａとダブルハゼ２２ａとによってスピンハゼ２ａが構成されている。また、シングルハゼ２１ａとダブルハゼ２２ａとの間には、チューブ状のガスケット２５が装着されている。   As shown in FIG. 2, the duct main body 2 is a rectangular duct having four wall plates 21 to 24 made of galvanized steel arranged in four directions and having a rectangular cross section. The duct body 2 is configured such that corner portions that are joint portions of the wall plates 21 to 24 and the wall plates 21 to 24 are rotatable, and the wall plates 21 to 24 are overlapped by rotating the corner portions. The whole can be folded or expanded into a cylindrical shape. That is, the corner portion between the first wall plate 21 and the second wall plate 22 will be described as an example. As shown in FIG. 3, the longitudinal direction of the first wall plate 21 (the axial direction of the duct body 2). A curl-shaped single goby 21a is formed at one end edge extending in the direction. On the other hand, a curl-shaped double goby 22a that engages with the single goby 21a is formed at one edge of the second wall plate 22 extending in the longitudinal direction, and the spin goby 2a is constituted by the single goby 21a and the double goby 22a. Further, a tube-shaped gasket 25 is mounted between the single goby 21a and the double goby 22a.

そして、例えば、第１の壁板２１と第２の壁板２２とが直角に位置する状態（図３（ａ）、筒状に展開した状態）から、第１の壁板２１を第２の壁板２２側に押すと、ダブルハゼ２２ａを軸としてシングルハゼ２１ａが回動し、図３（ｂ）に示すように、第１の壁板２１が第２の壁板２２側に移動する。つまり、図４に示すように、壁板２１〜２４が重なるようにして全体が折り畳んだ（扁平した）状態となる。さらに、この状態から、第１の壁板２１を第２の壁板２２側から離すと、ダブルハゼ２２ａを軸としてシングルハゼ２１ａが回動し、第１の壁板２１と第２の壁板２２とが直角に位置する。つまり、ダクト本体２が筒状に展開された状態となるものである。   And, for example, from the state where the first wall plate 21 and the second wall plate 22 are positioned at a right angle (FIG. 3A, a state where the first wall plate 21 is expanded in a cylindrical shape), the first wall plate 21 is moved to the second wall plate 21. When pushed to the wall plate 22 side, the single goby 21a rotates about the double goby 22a as an axis, and the first wall plate 21 moves to the second wall plate 22 side as shown in FIG. That is, as shown in FIG. 4, the whole is folded (flattened) so that the wall plates 21 to 24 overlap. Furthermore, when the first wall plate 21 is moved away from the second wall plate 22 side from this state, the single goblet 21a is rotated about the double goby 22a, and the first wall plate 21 and the second wall plate 22 are rotated. And are at right angles. That is, the duct body 2 is in a state of being expanded in a cylindrical shape.

このダクト本体２の一方の壁板である第２の壁板２２の外周面には、固定ピン（固定手段）２６が取り付けられている。この固定ピン２６は、第２の壁板２２の外周面から垂直に突出し、第２の壁板２２の長手方向に２つ、幅方向２つ、計４つ設けられている。この固定ピン２６の長さは、後述する断熱マット３の厚みよりも長く設定されている。   A fixing pin (fixing means) 26 is attached to the outer peripheral surface of the second wall plate 22 which is one wall plate of the duct body 2. The fixing pins 26 protrude vertically from the outer peripheral surface of the second wall plate 22, and two fixing pins 26 are provided in the longitudinal direction of the second wall plate 22, two in the width direction. The length of the fixing pin 26 is set longer than the thickness of the heat insulating mat 3 described later.

また、壁板２１〜２４の長手方向の両端部には、垂直に折り曲げられたフランジ部２１ｂ〜２４ｂが形成され、このフランジ部２１ｂ〜２４ｂによって、ダクト本体２の両開口端部に環状のフランジ２ｂが形成されるようになっている。   In addition, flange portions 21b to 24b that are bent vertically are formed at both ends in the longitudinal direction of the wall plates 21 to 24, and annular flanges are formed at both opening end portions of the duct body 2 by the flange portions 21b to 24b. 2b is formed.

断熱マット３は、グラスウール（ガラス繊維）製のシート状（帯状）で、外周面には、アルミ箔が貼り付けられている。この断熱マット３は、４枚（四方）の壁板２１〜２４の外周面を連続的に覆うように配設され、上記の固定ピン２６によって第２の壁板２２に固定されている。すなわち、図５に示すように、断熱マット３の一端部３ａが第２の壁板２２の外周面上で、かつ第１の壁板２１側の固定ピン２６上に位置され、当該一端部３ａに固定ピン２６が挿入されている。そして、壁板２１〜２４の外周面を巻き付けるようにして断熱マット３の他端部３ｂが第３の壁板２３側の固定ピン２６上に位置され、当該他端部３ｂに固定ピン２６が挿入されている。さらに、断熱マット３から突出した固定ピン２６の突出部２６ａには座金２７が装着され、図中２点鎖線で示すように、この座金２７を断熱マット３に押し付けるようにして、突出部２６ａが折り曲げられている。このようにして、断熱マット３の両端部３ａ、３ｂが、固定ピン２６によって第２の壁板２２に固定されているものである。   The heat insulating mat 3 has a sheet shape (band shape) made of glass wool (glass fiber), and an aluminum foil is attached to the outer peripheral surface. The heat insulating mat 3 is disposed so as to continuously cover the outer peripheral surfaces of the four (four sides) wall plates 21 to 24, and is fixed to the second wall plate 22 by the fixing pins 26. That is, as shown in FIG. 5, one end 3a of the heat insulating mat 3 is positioned on the outer peripheral surface of the second wall plate 22 and on the fixing pin 26 on the first wall plate 21 side, and the one end 3a. A fixing pin 26 is inserted into the. And the other end part 3b of the heat insulation mat 3 is located on the fixing pin 26 by the side of the 3rd wall board 23 so that the outer peripheral surface of the wall boards 21-24 may be wound, and the fixing pin 26 is set to the said other end part 3b. Has been inserted. Further, a washer 27 is mounted on the protruding portion 26a of the fixing pin 26 protruding from the heat insulating mat 3, and as shown by a two-dot chain line in the figure, the washer 27 is pressed against the heat insulating mat 3 so that the protruding portion 26a is formed. It is bent. In this manner, both end portions 3 a and 3 b of the heat insulating mat 3 are fixed to the second wall plate 22 by the fixing pins 26.

また、断熱マット３の長さは、ダクト本体２の軸線方向の長さよりも長く設定され、ダクト本体２の両開口端部（両フランジ２ｂ）よりも外側に突出した接続断熱部３ｃが、各壁板２１〜２４に対して設けられている。この接続断熱部３ｃの長さは、フランジ２ｂ（接続部）および後述する他のダクト１０など（機器）の一部を覆えるように設定されている。なお、この実施の形態では、ダクト本体２の両開口端部側に接続断熱部３ｃを設けているが、折り畳み式ダクト１の取付条件や接続する機器などに応じて、一方の開口端部側のみに接続断熱部３ｃを設けるようにしてもよい。   The length of the heat insulating mat 3 is set to be longer than the length of the duct main body 2 in the axial direction, and the connection heat insulating portions 3c protruding outward from both opening ends (both flanges 2b) of the duct main body 2 It is provided for the wall plates 21-24. The length of the connection heat insulating portion 3c is set so as to cover a part of the flange 2b (connection portion) and other ducts 10 (equipment) described later. In this embodiment, the connection heat insulation portion 3c is provided on both opening end portions of the duct body 2, but depending on the mounting conditions of the folding duct 1 or the equipment to be connected, one opening end portion side Only the connection heat insulation part 3c may be provided.

金網４は、断熱マット３の全外周面を覆うように配設されている。すなわち、壁板２１〜２４の外側を連続的に覆うように、断熱マット３に巻きついた状態で配設されている。そして、結束工具などで金網４を締め付ける（縛る）ことで、金網４が断熱マット３をダクト本体２（壁板２１〜２４）側に押え付け、断熱マット３とダクト本体２とが密着するようになっている。   The metal mesh 4 is disposed so as to cover the entire outer peripheral surface of the heat insulating mat 3. That is, it arrange | positions in the state wound around the heat insulation mat 3 so that the outer side of the wall boards 21-24 may be covered continuously. Then, by tightening (binding) the wire mesh 4 with a binding tool or the like, the wire mesh 4 presses the heat insulating mat 3 against the duct main body 2 (wall plates 21 to 24) side so that the heat insulating mat 3 and the duct main body 2 are in close contact with each other. It has become.

次に、このような構成の折り畳み式ダクト１の取付方法などについて説明する。   Next, a method for attaching the folding duct 1 having such a configuration will be described.

まず、上記のような折り畳み式ダクト１を生産工場や保管場所などにおいて製作、組み立て、保管等しておく。つまり、折り畳み式ダクト１を取付現場に搬入する前に、ダクト本体２を筒状にした状態で上記のようにして断熱マット３と金網４とを配設する。そして、図６に示すように、断熱マット３の接続断熱部３ｃを壁板２１〜２４側に寝かせた（腕まくりした）状態で、折り畳み式ダクト１を折り畳み、保管等しておく。次に、必要に応じて、折り畳み式ダクト１を折り畳んだ状態で取付現場に搬入し、折り畳み式ダクト１を筒状に展開する。そして、図７に示すように、各フランジ部２１ｂ〜２４ｂ間にコーナーピース５を取り付けて、筒状形態を固定する。続いて、接続断熱部３ｃを壁板２１〜２４側に寝かせた状態で、折り畳み式ダクト１を所定の取付場所に取り付ける。すなわち、折り畳み式ダクト１を天井内などに吊設する（吊り込む）とともに、図８に示すように、フランジ２ｂを既設の他のダクト１０などのフランジ１０ａに接続し、他のダクト１０などとつなぎこむ。   First, the folding duct 1 as described above is manufactured, assembled, stored, etc. in a production factory, a storage place, or the like. That is, before carrying the foldable duct 1 into the installation site, the heat insulating mat 3 and the wire mesh 4 are disposed as described above in a state where the duct main body 2 is in a cylindrical shape. Then, as shown in FIG. 6, the foldable duct 1 is folded and stored in a state in which the connection heat insulating portion 3 c of the heat insulating mat 3 is laid on the side of the wall plates 21 to 24 (arms are rolled up). Next, if necessary, the folding duct 1 is carried into the installation site in a folded state, and the folding duct 1 is expanded into a cylindrical shape. And as shown in FIG. 7, the corner piece 5 is attached between each flange part 21b-24b, and a cylindrical form is fixed. Subsequently, the foldable duct 1 is attached to a predetermined attachment place in a state where the connection heat insulating portion 3c is laid on the wall plates 21 to 24 side. That is, the foldable duct 1 is suspended (suspended) in the ceiling or the like, and the flange 2b is connected to a flange 10a such as another existing duct 10 as shown in FIG. Connect.

次に、図９に示すように、接続断熱部３ｃを他のダクト１０側に寝かせて、フランジ２ｂ、１０ａと他のダクト１０の一部を接続断熱部３ｃで覆った状態で、結束工具などで金網４を締め付ける。これにより、金網４が断熱マット３をダクト本体２側に押え付け、断熱マット３がダクト本体２に密着、固定する。さらに、接続断熱部３ｃの外周面を別の金網４１で覆い、結束工具などで金網４１を締め付けて、接続断熱部３ｃをフランジ２ｂ、１０ａおよび他のダクト１０に密着、固定させるものである。   Next, as shown in FIG. 9, the connecting heat insulating portion 3 c is laid on the other duct 10 side, and the flanges 2 b, 10 a and a part of the other duct 10 are covered with the connecting heat insulating portion 3 c, a binding tool, etc. Tighten the wire mesh 4 with As a result, the wire mesh 4 presses the heat insulating mat 3 against the duct main body 2, and the heat insulating mat 3 adheres and fixes to the duct main body 2. Further, the outer peripheral surface of the connection heat insulating portion 3c is covered with another wire mesh 41, and the wire mesh 41 is tightened with a binding tool or the like, so that the connection heat insulating portion 3c is adhered and fixed to the flanges 2b, 10a and the other ducts 10.

ところで、この実施の形態では、ダクト本体２に断熱マット３が配設された状態を折り畳み式ダクト１とし、その取付方法について説明しているが、ダクト本体２自体を折り畳み式ダクトとする場合も同様である。すなわち、折り畳み式ダクトとしてのダクト本体２を取付現場に搬入する前に、ダクト本体２を筒状にした状態で断熱マット３と金網４とを配設する。そして、断熱マット３と金網４とともにダクト本体２を折り畳んだ状態で取付現場に搬入し、ダクト本体２を筒状に展開して所定の取付場所に取り付けるものである。   By the way, in this embodiment, the state in which the heat insulating mat 3 is disposed in the duct main body 2 is referred to as the folding duct 1 and its mounting method is described. However, the duct main body 2 itself may be a folding duct. It is the same. That is, before the duct main body 2 as a foldable duct is carried into the installation site, the heat insulating mat 3 and the wire net 4 are disposed in a state where the duct main body 2 is in a cylindrical shape. Then, the duct body 2 is carried together with the heat insulating mat 3 and the wire mesh 4 into the attachment site, and the duct body 2 is expanded into a cylindrical shape and attached to a predetermined attachment place.

以上のように、この折り畳み式ダクト１および折り畳み式ダクトの取付方法によれば、ダクト本体２の外周面に予め断熱マット３が配設されているため、このダクト１を取付現場に搬入して所定の取付場所に取り付けることで、外周面に断熱マット３が配設されたダクト１が取り付けられたことになる。つまり、取付現場においてダクト本体２に断熱処理する必要がなくなり、あるいは些細な調整作業などだけですみ、断熱処理に要する労力と時間とを著しく軽減することができる。しかも、取付現場において断熱処理する必要がなくなり、あるいは些細な調整作業などだけですむため、取付現場における断熱マット３の廃材の発生を削減することができる。   As described above, according to the folding duct 1 and the mounting method of the folding duct, since the heat insulating mat 3 is disposed on the outer peripheral surface of the duct body 2 in advance, the duct 1 is carried into the installation site. By attaching to a predetermined attachment location, the duct 1 having the heat insulating mat 3 disposed on the outer peripheral surface is attached. That is, it is not necessary to insulate the duct body 2 at the installation site, or only a slight adjustment work is required, and the labor and time required for the insulative treatment can be significantly reduced. In addition, since it is not necessary to insulate at the installation site or only a small adjustment work is required, the generation of waste material of the heat insulating mat 3 at the installation site can be reduced.

また、フランジ２ｂ側に接続断熱部３ｃが設けられているため、フランジ２ｂ、１０ａや他のダクト１０などを接続断熱部３ｃで断熱処理することができる。つまり、フランジ２ｂ、１０ａや他のダクト１０などを別の断熱材で別途断熱処理する必要がなくなり、断熱処理に要する労力と時間とを著しく軽減することができる。しかも、別の断熱材で断熱処理する必要がないため、断熱材の廃材の発生を削減することができる。   Moreover, since the connection heat insulation part 3c is provided in the flange 2b side, the flange 2b, 10a, another duct 10, etc. can be heat-insulated with the connection heat insulation part 3c. That is, it is not necessary to separately insulate the flanges 2b and 10a, other ducts 10 and the like with another heat insulating material, and labor and time required for the heat insulating treatment can be significantly reduced. And since it is not necessary to heat-process with another heat insulating material, generation | occurrence | production of the waste material of heat insulating material can be reduced.

さらに、固定ピン２６を介して第２の壁板２２のみに対して断熱マット３が固体されているため、断熱マット３の自由度が高く、スピンハゼ２ａの回動に良好に追従する。つまり、折り畳み式ダクト１の折り畳みや筒状への展開に際して、断熱マット３がダクト本体２に良好に追従し、ダクト１の取付作業性や運搬性などが損なわれない。また、金網４を締め付けることで断熱マット３とダクト本体２とが密着するため、断熱マット３による断熱効果が高められる。   Furthermore, since the heat insulation mat 3 is solid only with respect to the 2nd wall board 22 via the fixing pin 26, the heat insulation mat 3 has a high freedom degree, and follows the rotation of the spin goby 2a well. That is, when the folding duct 1 is folded or expanded into a cylindrical shape, the heat insulating mat 3 follows the duct body 2 well, and the mounting workability and transportability of the duct 1 are not impaired. Moreover, since the heat insulating mat 3 and the duct main body 2 are brought into close contact with each other by tightening the wire mesh 4, the heat insulating effect by the heat insulating mat 3 is enhanced.

以上、この発明の実施の形態について説明したが、具体的な構成は、この実施の形態に限られるものではなく、この発明の要旨を逸脱しない範囲の設計の変更等があっても、この発明に含まれる。例えば、この実施の形態では、グラスウール製の断熱マット３をダクト本体２の外周面に配設しているが、ラバー（ゴム）系の難燃材を断熱材としてダクト本体２の外周面に接着してもよい。この場合、断熱材とダクト本体２との密着が良好となり、断熱性や作業性、外観性が高められる。   Although the embodiment of the present invention has been described above, the specific configuration is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention, the present invention is not limited to this embodiment. include. For example, in this embodiment, the heat insulating mat 3 made of glass wool is disposed on the outer peripheral surface of the duct body 2, but is bonded to the outer peripheral surface of the duct main body 2 using a rubber (rubber) flame retardant as a heat insulating material. May be. In this case, adhesion between the heat insulating material and the duct main body 2 is improved, and heat insulating properties, workability, and appearance are improved.

また、図１０に示すように、ダクト本体２の外周面に断熱性の植毛１２を施すようにしてもよい。すなわち、ダクト本体２の外周面に接着剤を塗布し、炭素繊維などの短い繊維を植える（貼着する）ことで、ダクト本体２の全外周面を植毛断熱処理してもよい。この場合、ダクト本体２と植毛１２とが常に一体となり、良好な断熱効果が発揮されるとともに、折り畳み式ダクト１１の取付作業性や運搬性などが良好となる。また、金網４などを要することもない。   Moreover, as shown in FIG. 10, you may make it give the heat insulating flock 12 to the outer peripheral surface of the duct main body 2. As shown in FIG. That is, the entire outer peripheral surface of the duct main body 2 may be heat-insulated by applying an adhesive to the outer peripheral surface of the duct main body 2 and planting (sticking) short fibers such as carbon fibers. In this case, the duct main body 2 and the flocked hair 12 are always integrated, so that a good heat insulating effect is exhibited and the workability and transportability of the folding duct 11 are improved. Further, there is no need for the wire mesh 4 or the like.

ところで、断熱材は、防音効果をも有し、少なくともダクトおよびその周辺機器に関しては、断熱材と防音材とは同等材であるため、この発明では、断熱材には防音材を含むものとする。   By the way, the heat insulating material also has a soundproofing effect, and at least for the duct and its peripheral devices, the heat insulating material and the soundproofing material are equivalent materials. Therefore, in the present invention, the heat insulating material includes the soundproofing material.

また、この実施の形態では、折り畳み式ダクト１を取り付ける際に、接続断熱部３ｃを壁板２１〜２４側に寝かせているが、作業性などを高めるために、接続断熱部３ｃを結束バンドなどで仮止めしてもよい。さらに、ダクト本体２の第２の壁板２２の外周面にのみ固定ピン２６を配設しているが、断熱マット３の重量やダクト本体２の大きさなどに応じて、第４の壁板２４などにも固定ピン２６を配設するようにしてもよい。なお、この実施の形態では、ダクト本体２が角ダクトの場合について説明したが、ダクト本体２がＬ字状のエルボや、Ｓ字状に湾曲したエスカン、あるいはホッパーなどであってもよいことは勿論である。   Moreover, in this embodiment, when attaching the foldable duct 1, the connection heat insulating portion 3c is laid on the wall plates 21 to 24 side. However, in order to improve workability and the like, the connection heat insulating portion 3c is connected with a binding band or the like. May be temporarily fixed. Further, although the fixing pin 26 is disposed only on the outer peripheral surface of the second wall plate 22 of the duct body 2, the fourth wall plate is selected depending on the weight of the heat insulating mat 3, the size of the duct body 2, and the like. The fixing pin 26 may be arranged on the 24 or the like. In this embodiment, the case where the duct body 2 is a rectangular duct has been described. However, the duct body 2 may be an L-shaped elbow, an S-curved escan, a hopper, or the like. Of course.

この発明の実施の形態に係る折り畳み式ダクトの斜視図である。It is a perspective view of the foldable duct which concerns on embodiment of this invention. 図１の折り畳み式ダクトのダクト本体の斜視図である。It is a perspective view of the duct main body of the foldable duct of FIG. 図２のダクト本体の角部（スピンハゼ）を示し、（ａ）は、第１の壁板と第２の壁板とが直角に位置した状態を示し、（ｂ）は、第１の壁板と第２の壁板とが平行に位置した状態を示す図である。2 shows a corner (spin goby) of the duct body of FIG. 2, (a) shows a state in which the first wall plate and the second wall plate are positioned at right angles, and (b) shows the first wall plate. It is a figure which shows the state which the 2nd wall board was located in parallel. 図２のダクト本体を折り畳んだ状態を示す正面図である。It is a front view which shows the state which folded the duct main body of FIG. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図１の折り畳み式ダクトを折り畳み、断熱マットの接続断熱部を壁板側に寝かせた状態を示す正面図（ａ）と平面図（ｂ）である。It is the front view (a) and the top view (b) which show the state which folded the foldable duct of FIG. 1, and laid the connection heat insulation part of the heat insulation mat on the wall board side. 図１の折り畳み式ダクトのフランジにコーナーピースを取り付けた状態を示す斜視図である。It is a perspective view which shows the state which attached the corner piece to the flange of the foldable duct of FIG. 図１の折り畳み式ダクトを他のダクトとつないだ状態を示す正面図（一部断面図）である。It is a front view (partial cross section figure) which shows the state which connected the foldable duct of FIG. 1 with the other duct. 図８の状態から、断熱マットの接続断熱部でフランジと他のダクトの一部を覆った状態を示す正面図（一部断面図）である。FIG. 9 is a front view (partial cross-sectional view) illustrating a state where a flange and a part of another duct are covered with a connection heat insulating portion of the heat insulating mat from the state of FIG. この発明の他の実施の形態であって、ダクト本体の外周面に植毛を施した折り畳み式ダクトの斜視図である。It is other embodiment of this invention, Comprising: It is a perspective view of the foldable duct which gave the flock to the outer peripheral surface of a duct main body.

符号の説明Explanation of symbols

１、１１ 折り畳み式ダクト
２ ダクト本体
２ａ スピンハゼ
２ｂ フランジ（接続部）
２１〜２４ 壁板
２１ａ シングルハゼ
２２ａ ダブルハゼ
２５ ガスケット
２６ 固定ピン（固定手段）
３ 断熱マット（断熱材）
３ｃ 接続断熱部
４、４１ 金網（密着部材）
５ コーナーピース
１０ 他のダクト
１２ 植毛 1, 11 Foldable duct 2 Duct body 2a Spin goby 2b Flange (connection part)
21-24 Wall plate 21a Single goby 22a Double goby 25 Gasket 26 Fixing pin (fixing means)
3 Insulation mat (Insulation material)
3c Connection heat insulation part 4, 41 Wire mesh (adhesion member)
5 Corner piece 10 Other duct 12 Flocking

Claims (5)

壁板を四方に配設して筒状とし、前記壁板と壁板との接合部である角部が回動自在であり、前記角部が回動することで前記壁板が重なるように全体が折り畳んだ状態となる折り畳み式ダクトであって、
シート状の断熱材が、前記四方の壁板の外周面に巻き付き、かつ少なくとも一方の開口端部から外側に突出するように配設され、
前記突出した断熱材の部分が角部に沿って切断されて前記各壁板に対して設けられた接続断熱部が、前記壁板の表面側および前記開口端部の外側に折り曲げ自在となっている、ことを特徴とする折り畳み式ダクト。 Wall plates are arranged in four directions to form a cylindrical shape, and corner portions that are joint portions between the wall plates and the wall plates are rotatable, and the wall plates are overlapped by rotating the corner portions. A foldable duct that is fully folded,
The sheet-like heat insulating material is disposed so as to be wound around the outer peripheral surface of the four wall plates and to protrude outward from at least one opening end,
The connecting heat insulating portion provided for each wall plate by cutting the protruding portion of the heat insulating material along the corners can be bent to the surface side of the wall plate and to the outside of the opening end. A foldable duct characterized by that. 一枚の前記壁板の外周面に固定手段が設けられ、前記断熱材の両端部が前記固定手段によって前記一枚の壁板に固定されている、ことを特徴とする請求項１に記載の折り畳み式ダクト。 The fixing means is provided in the outer peripheral surface of the said one wall board, The both ends of the said heat insulating material are being fixed to the said one wall board by the said fixing means. Foldable duct. 前記断熱材の外周に、前記断熱材を前記壁板側に押え付ける密着部材が設けられていることを特徴とする請求項１または２のいずれか１項に記載の折り畳み式ダクト。   The folding duct according to any one of claims 1 and 2, wherein an adhesion member that presses the heat insulating material against the wall plate is provided on an outer periphery of the heat insulating material. 壁板を四方に配設して筒状とし、前記壁板と壁板との接合部である角部が回動自在であり、前記角部が回動することで前記壁板が重なるように全体が折り畳んだ状態となる折り畳み式ダクトの取付方法であって、
前記折り畳み式ダクトを取付現場に搬入する前に、前記折り畳み式ダクトを筒状にした状態で前記壁板の外周面にシート状の断熱材を巻き付けるように配設し、かつ、前記断熱材を少なくとも一方の開口端部よりも外側に突出させ、角部に沿って切断して前記各壁板に対して接続断熱部を設け、
前記折り畳み式ダクトを折り畳み、かつ前記各接続断熱部を前記壁板の表面側に折り曲げた状態で取付現場に搬入し、
前記折り畳み式ダクトを筒状にして所定の取付場所に取り付け、前記開口端部に他のダクトを接続した後に、前記各接続断熱部を折り返して前記他のダクト側を覆う、ことを特徴とする折り畳み式ダクトの取付方法。 Wall plates are arranged in four directions to form a cylindrical shape, and corner portions that are joint portions between the wall plates and the wall plates are rotatable, and the wall plates are overlapped by rotating the corner portions. It is a mounting method of a folding duct that is in a folded state as a whole,
Before bringing the folding duct into the installation site, the folding duct is arranged in a cylindrical shape so as to wind a sheet-like heat insulating material around the outer peripheral surface of the wall plate, and the heat insulating material Protruding outward from at least one opening end, cutting along the corners to provide a connection heat insulation for each wall plate,
Folding the foldable duct, and carrying each connection heat insulation part to the installation site in a state folded to the surface side of the wall plate,
The foldable duct is formed in a cylindrical shape and attached to a predetermined mounting location, and after connecting another duct to the opening end, each connection heat insulating portion is folded back to cover the other duct side. Folding duct installation method. 前記折り返した接続断熱部の外周面を密着部材で覆って、前記接続断熱部を前記他のダクト側に押え付ける、ことを特徴とする請求項４に記載の折り畳み式ダクトの取付方法。
5. The folding duct mounting method according to claim 4, wherein an outer peripheral surface of the folded connection heat insulating portion is covered with a close contact member, and the connection heat insulating portion is pressed against the other duct side.
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