JP2006281097A - Air filter - Google Patents

Air filter Download PDF

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JP2006281097A
JP2006281097A JP2005104835A JP2005104835A JP2006281097A JP 2006281097 A JP2006281097 A JP 2006281097A JP 2005104835 A JP2005104835 A JP 2005104835A JP 2005104835 A JP2005104835 A JP 2005104835A JP 2006281097 A JP2006281097 A JP 2006281097A
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filter
pack
zigzag
filter medium
frame
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JP4100573B2 (en
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Osamu Kitayama
治 北山
Takeshi Kawakami
剛 川上
Norikazu Niiya
範一 新舎
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Nippon Muki Co Ltd
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Nippon Muki Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an air filter capable of eliminating a seal failure that is a defect of a conventional air filter, attaining reliable sealability by simple sealing work, and reducing an amount of a sealing agent to be used. <P>SOLUTION: The air filter comprises: forming a flat surface portion in an end having a zigzag shape of a filter medium folded in a zigzag shape constituting a filter pack, to be housed in a filter frame; and entire circumferential portions of a ventilation surface of the filter pack and an inner surface of the filter frame are linearly sealed by the sealing agent, wherein the flat surface is formed by bringing a ribbon material coated into contact with the vicinity of edge having a zigzag shape of the filter medium. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、例えば、防塵マスク等の吸引部に使用するのに好適な小型ＨＥＰＡフィルタに関する。   The present invention relates to a small HEPA filter suitable for use in a suction part such as a dust mask.

従来、フィルタは、図６に示すように製造されている。即ち、先ず、図６（ａ）に示すように、長方形状の濾材６１’に、間隔材としてホットメルト樹脂等からなるリボン材６１”を直線状に塗布し、このリボン材６１”と折り曲げ線が直交するように、濾材６１’をジグザグ状に折ってフィルタパック６１を構成する。次に、同図（ｂ）、（ｃ）に示すように、フィルタパック６１のジグザグ状の稜線に対する垂直方向の両端部６１ｓ、６１ｓとフィルタ枠６２の各側枠板６２ｓ、６２ｓとを、通風方向の上流側及び／又は下流側から線状シール６３、６３によって接着固定する。そして、同図（ｄ）、（ｅ）に示すように、フィルタパック６１のジグザグ状の一方の端部６１ｔａに、フィルタ枠６２の上枠板６２ｕを当接させて仮組する。そして、この状態で端部６１ｔａと上枠板６２ｕの間にシール剤を注入して硬化させて固定する。次に、フィルタパック６１を上下反転させて、フィルタパック６１のジグザグ状の他方の端部６１ｔｂに、フィルタ枠６２の下枠板６２ｄを当接させて仮組し、端部６１ｔｂと下枠板６２ｄとをシール剤で固定する。この後に、フィルタ枠が木或いは合板であれば、上下枠板６２ｕ、６２ｄと側枠板６２ｓ、６２ｓをタッカーや釘で固定し、金属であればボルトにより締結して固定するようにしていた。
このような、従来の方法では、シール剤の不足によりシール不良が生じることがあった。また、シール剤を注入して、シール不良を生じさせないように固定するためには、シール剤の使用量が多くなるという問題があった。 Conventionally, the filter is manufactured as shown in FIG. That is, first, as shown in FIG. 6 (a), a ribbon material 61 "made of hot-melt resin or the like as a spacing material is linearly applied to a rectangular filter medium 61 ', and the ribbon material 61" and a folding line are applied. The filter pack 61 is constructed by folding the filter medium 61 ′ in a zigzag shape so that the two are orthogonal to each other. Next, as shown in FIGS. 5B and 5C, the both end portions 61s and 61s in the vertical direction with respect to the zigzag ridge line of the filter pack 61 and the side frame plates 62s and 62s of the filter frame 62 are ventilated. Bonding and fixing are performed by linear seals 63 and 63 from the upstream side and / or the downstream side in the direction. Then, as shown in FIGS. 4D and 4E, the upper frame plate 62u of the filter frame 62 is brought into contact with one end 61ta of the zigzag shape of the filter pack 61 to be temporarily assembled. In this state, a sealing agent is injected between the end portion 61ta and the upper frame plate 62u, and is cured and fixed. Next, the filter pack 61 is turned upside down, and the lower frame plate 62d of the filter frame 62 is temporarily brought into contact with the other zigzag end portion 61tb of the filter pack 61, and the end portion 61tb and the lower frame plate are temporarily assembled. 62d is fixed with a sealant. After this, if the filter frame is wood or plywood, the upper and lower frame plates 62u and 62d and the side frame plates 62s and 62s are fixed with a tucker or a nail, and if metal, they are fastened with bolts and fixed.
In such a conventional method, a sealing failure may occur due to a lack of a sealing agent. Moreover, in order to inject | pour sealing agent and to fix so that it may not produce a sealing failure, there existed a problem that the usage-amount of a sealing agent increased.

このような問題を解決するため、特許文献１には、フィルタパックを構成する濾材のジグザグ状の端部に、シール剤により固化された平面部を設けたものが開示されている。この平面部は、フィルタパックを構成する濾材のジグザグ状の端部を、トレー（型）に充填された発泡ウレタン樹脂製シール剤に浸漬して、濾材のジグザグ状の端部にシール剤を固化することによって形成している。このフィルタパックは、フィルタ枠に収容した際に、フィルタ枠と平面部を設けた濾材の端部が面接触するため、フィルタ枠と濾材のジグザグ状の端部が線接触する場合と比較して、シール剤の不足によるシール不良がなくなるという利点を有する。
特開２００１−２３２１２９号公報 In order to solve such a problem, Patent Document 1 discloses that a zigzag end of a filter medium constituting a filter pack is provided with a flat portion solidified by a sealant. This flat part is made by immersing the zigzag end of the filter medium constituting the filter pack in the foamed urethane resin sealant filled in the tray (mold) to solidify the sealant on the zigzag end of the filter medium. It is formed by doing. When this filter pack is accommodated in the filter frame, the filter frame and the end of the filter medium provided with the flat surface are in surface contact with each other, so that the filter frame and the zigzag end of the filter medium are in line contact with each other. , There is an advantage that seal failure due to lack of sealant is eliminated.
JP 2001-232129 A

しかしながら、特許文献１に開示されたフィルタパックは、濾材のジグザグ状の端部をトレーに充填させたシール剤に浸漬させて平面部を形成しているため、シール剤の使用量が多く、シール剤に含有されている揮発性の溶媒等によって周囲に悪影響を及ぼす場合があった。
また、フィルタパックをシール剤に浸漬して、シール剤を固化して平面部を形成しているため、製造工程が多くなるという問題もあった。
そこで、本発明は、上記従来のエアフィルタの欠点であるシール不良を解消し、簡単なシール作業により確実なシール性が得られ、シール剤の使用量も低減することが可能となるエアフィルタを提供することを目的とする。 However, since the filter pack disclosed in Patent Document 1 has a flat portion formed by immersing the zigzag end of the filter medium in a sealing agent filled in a tray, the amount of the sealing agent used is large, The volatile solvent contained in the agent may adversely affect the surroundings.
Moreover, since the filter pack is immersed in the sealing agent and the sealing agent is solidified to form the flat portion, there is a problem that the manufacturing process increases.
Accordingly, the present invention provides an air filter that eliminates the sealing failure that is a drawback of the above-described conventional air filter, provides a reliable sealing performance by a simple sealing operation, and can reduce the amount of sealant used. The purpose is to provide.

本発明のエアフィルタは、前記目的を達成すべく、請求項１に記載の通り、フィルタパックを構成するジグザグに折り畳まれた濾材のジグザグ状の端部に、平面部を設けてフィルタ枠に収納し、前記フィルタパックの通風面の全周部とフィルタ枠の内側面の全周部をシール剤で線シールしたエアフィルタであって、前記平面部が、前記濾材のジグザグ状の端縁近傍に塗布したリボン材を当接させてなることを特徴とする。
また、請求項２記載のエアフィルタは、請求項１記載のエアフィルタにおいて、前記リボン材を、前記濾材の少なくとも片面に、前記濾材のジグザグ状の端縁に沿って線状に塗布したことを特徴とする。
また、請求項３記載のエアフィルタは、請求項１記載のエアフィルタにおいて、前記リボン材を、前記濾材の両面に、前記濾材のジグザグ状の端縁に沿って線状に塗布し、前記平面部が、前記リボン材を互いに融着させてなることを特徴とする。
本発明のエアフィルタは、前記目的を達成するべく、請求項４に記載の通り、フィルタパックを構成するジグザグ状に折り畳まれた濾材のジグザグ状の端部に、前記濾材のジグザグ状の端縁近傍に塗布されたリボン材により形成された平面部を設けたフィルタパックの複数個を、前記濾材のジグザグ状の稜線に対して垂直方向に隣接させてフィルタ枠に収納し、前記隣接させたフィルタパックの前記濾材の隣接する端面間をシール剤で線シールするとともに、前記隣接させたフィルタパックの通風面の全周部とフィルタ枠の内側面の全周部とをシール剤で線シールしたことを特徴とする。
また、請求項５記載のエアフィルタは、請求項１乃至４のいずれかに記載のエアフィルタにおいて、前記フィルタ枠が繋ぎ目のない一体成型品であることを特徴とする。 In order to achieve the above object, an air filter according to the present invention is provided with a flat portion at a zigzag end of a filter medium that is folded into a zigzag constituting a filter pack and accommodated in a filter frame. An air filter in which the entire periphery of the ventilation surface of the filter pack and the entire periphery of the inner surface of the filter frame are line-sealed with a sealant, and the flat portion is near the zigzag edge of the filter medium. The coated ribbon material is brought into contact with each other.
Further, the air filter according to claim 2 is the air filter according to claim 1, wherein the ribbon material is applied linearly along at least one side of the filter medium along the zigzag edge of the filter medium. Features.
The air filter according to claim 3 is the air filter according to claim 1, wherein the ribbon material is applied to both sides of the filter medium in a line shape along zigzag edges of the filter medium, and the plane The portion is formed by fusing the ribbon materials to each other.
In order to achieve the above object, the air filter of the present invention has a zigzag edge of the filter medium at a zigzag end of the filter medium folded in a zigzag form to constitute a filter pack. A plurality of filter packs each provided with a flat portion formed by a ribbon material applied in the vicinity are accommodated in a filter frame adjacent to the zigzag ridge line of the filter material in a vertical direction, and the adjacent filter Between the adjacent end faces of the filter medium of the pack is line-sealed with a sealing agent, and the whole circumference of the ventilation surface of the adjacent filter pack and the whole circumference of the inner side of the filter frame are line-sealed with a sealing agent. It is characterized by.
An air filter according to a fifth aspect is the air filter according to any one of the first to fourth aspects, wherein the filter frame is an integrally molded product without a joint.

本発明のエアフィルタは、フィルタパックを構成する濾材のジグザグ状の端縁近傍にリボン材を塗布し、このリボン材を当接させて濾材のジグザグ状の端部に平面部を形成している。このため、濾材の間隔保持材として使用するリボン材を濾材に塗布すると同時に、折り曲げられた際にジグザグ状となる濾材の端縁近傍にもリボン材を塗布することができ、フィルタパックを構成すると略同時に平面部も形成することができる。また、リボン材によってフィルタパックに設けた平面部は、シール剤を固化してフィルタパックに設けた平面部と比較して、少量のリボン材で、平面部をフィルタパックに設けることができる。また、シール剤を用いて平面部を形成する場合と比較して、リボン材を用いて平面部を形成した方が、濾材の通風面積が大きくなるという利点も有する。
このように濾材のジグザグ状の端部に平面部を設けることで、この平面部とフィルタ枠とが面接触し、濾材のジグザグ状の端部とフィルタ枠とを線接触させてシール剤を注入してシールする場合と比較して、シール剤のシール不足によるシール不良がなくなる。そして、フィルタパックの通風面の全周部とフィルタ枠の内側面の全周部をシール剤で線シールするだけで、フィルタパックとフィルタ枠との間の空気の流通も完全に遮断できることとなる。
また、取り付けられる場所に応じて異形のエアフィルタを形成する場合であっても、濾材のジグザグ状の端部に平面部が設けられた複数個のフィルタパックを組み合わせて用いることにより、凸凹形状のコの字状やＬ字状等の複雑なフィルタ枠に収容し、簡単な線シールによってシールするだけで、シール性よくエアフィルタを組み立てることが可能となる。
また、フィルタ枠が繋ぎ目がない一体成型したフィルタ枠である場合は、フィルタ枠の接合部からのリークの問題をより確実に防止することが可能となる。 In the air filter of the present invention, a ribbon material is applied in the vicinity of the zigzag end edge of the filter medium constituting the filter pack, and the flat surface portion is formed at the zigzag end of the filter medium by contacting the ribbon material. . For this reason, the ribbon material used as a filter medium spacing retainer can be applied to the filter medium, and at the same time, the ribbon material can be applied to the vicinity of the edge of the filter medium that becomes zigzag when folded, and the filter pack is configured. A plane part can also be formed substantially simultaneously. Further, the flat portion provided in the filter pack by the ribbon material can be provided in the filter pack with a small amount of ribbon material as compared with the flat portion provided in the filter pack by solidifying the sealing agent. Moreover, compared with the case where the flat portion is formed using the sealant, the formation of the flat portion using the ribbon material has an advantage that the ventilation area of the filter medium is increased.
By providing a flat portion at the zigzag end of the filter medium in this way, the plane portion and the filter frame are in surface contact with each other, and the zigzag end of the filter medium and the filter frame are brought into line contact with each other to inject a sealing agent. As compared with the case of sealing, sealing failure due to insufficient sealing of the sealing agent is eliminated. Then, the air flow between the filter pack and the filter frame can be completely blocked by simply sealing the whole circumference of the ventilation surface of the filter pack and the whole circumference of the inner surface of the filter frame with a sealant. .
Also, even when forming an irregular air filter according to the place where it is attached, by using a combination of a plurality of filter packs provided with a flat portion at the zigzag end of the filter medium, The air filter can be assembled with a good sealing property simply by being housed in a complex filter frame such as a U-shape or L-shape and sealing with a simple line seal.
Further, when the filter frame is an integrally formed filter frame having no joints, it is possible to more reliably prevent the problem of leakage from the joint portion of the filter frame.

本発明のエアフィルタの実施例を図面に基づき説明する。図１に示すように、本実施例において、フィルタパック１は、次のように製造されている。即ち、長方形状の極微細ガラス繊維製濾材１’に間隔保持材としてホットメルト樹脂からなるリボン材２を濾材１’の長辺と平行となるように線状に塗布し、このリボン材２と折り曲げ線が直交するように、濾材１’をジグザグ状に折り畳んでフィルタパック１を構成する。濾材１’が折り曲げられた際に、ジグザグ状となる濾材１’の片面の両端縁近傍には、この両端縁に沿って線状にホットメルト樹脂からなるリボン材２’を塗布し、濾材１’が折り曲げられた際に、当接したリボン材２’で構成される平面部１ｔをフィルタパック１に設けるようにした。フィルタパック１の平面部１ｔを構成するリボン材２’を、濾材１’の少なくとも片面に塗布する場合は、線シール４を塗布する面となる、濾材１’のフィルタパック１の上流側を構成する面に塗布することが好ましい。
フィルタパック１に設けられた平面部１ｔを構成するリボン材２’の量は、フィルタパックをトレーに充填されたシール剤に浸漬し、固化することによって平面部１ｔを形成するシール剤の量と比較して、少量である。また、平面部１ｔを形成するリボン材２’の両は、間隔保持材として用いるリボン材２の量と同程度である。
例えば、厚さ０．３８ｍｍ、目付け７０ｇ／ｍ2の濾材１’を用いて、縦６１０ｍｍ×横６１０ｍｍ×奥行６５ｍｍのフィルタ枠に収容されるフィルタパック１を形成する場合に、濾材１’の片面のジグザグ状の一端縁近傍に塗布するリボン材２’の量は、約２０ｇである。このリボン材２’の量は、間隔保持材として濾材１’に設けられたリボン材２の量と同程度である。
また、例えば、厚さ０．３８ｍｍ、目付け７０ｇ／ｍ2の濾材１’を用いて、縦１５９ｍｍ×横１１０ｍｍ×奥行３０．５ｍｍのフィルタ枠に収容されるフィルタパック１を形成する場合に、濾材１’の片面のジグザグ状の一端縁近傍に塗布するリボン材２’の量は、約３ｇである。このリボン材２’の量も、濾材１’の間隔保持材として設けられるリボン材２の量と同程度である。 An embodiment of an air filter of the present invention will be described with reference to the drawings. As shown in FIG. 1, in the present embodiment, the filter pack 1 is manufactured as follows. That is, a ribbon material 2 made of hot-melt resin as a spacing maintaining material is applied linearly to a rectangular ultrafine glass fiber filter material 1 ′ so as to be parallel to the long side of the filter material 1 ′. The filter pack 1 is configured by folding the filter medium 1 ′ in a zigzag shape so that the folding lines are orthogonal. When the filter medium 1 ′ is bent, a ribbon material 2 ′ made of a hot melt resin is applied linearly along the both edges in the vicinity of one end of the zigzag filter medium 1 ′. The filter pack 1 is provided with a flat surface portion 1t composed of the ribbon material 2 'that abuts when' is bent. When the ribbon material 2 ′ constituting the flat portion 1 t of the filter pack 1 is applied to at least one surface of the filter material 1 ′, the upstream side of the filter pack 1 of the filter material 1 ′, which becomes the surface to which the line seal 4 is applied, is configured. It is preferable to apply to the surface to be applied.
The amount of the ribbon material 2 ′ constituting the flat portion 1t provided in the filter pack 1 is the amount of the sealing agent that forms the flat portion 1t by immersing the filter pack in the sealing agent filled in the tray and solidifying it. Compared to a small amount. Further, both of the ribbon materials 2 ′ forming the flat portion 1t are approximately the same as the amount of the ribbon material 2 used as the spacing member.
For example, when forming a filter pack 1 accommodated in a filter frame having a length of 610 mm, a width of 610 mm, and a depth of 65 mm using a filter medium 1 ′ having a thickness of 0.38 mm and a basis weight of 70 g / m 2 , one side of the filter medium 1 ′ The amount of the ribbon material 2 ′ applied to the vicinity of one edge of the zigzag shape is about 20 g. The amount of the ribbon material 2 ′ is approximately the same as the amount of the ribbon material 2 provided on the filter medium 1 ′ as a spacing member.
For example, when forming the filter pack 1 accommodated in a filter frame having a length of 159 mm, a width of 110 mm, and a depth of 30.5 mm using the filter medium 1 ′ having a thickness of 0.38 mm and a basis weight of 70 g / m 2 , the filter medium The amount of the ribbon material 2 ′ to be applied in the vicinity of one edge of the zigzag shape on one side of 1 ′ is about 3 g. The amount of the ribbon material 2 ′ is also approximately the same as the amount of the ribbon material 2 provided as an interval holding material for the filter material 1 ′.

そして、図２（ａ）、（ｂ）に示すように、上記フィルタパック１を、４枚のアルミニウム製の板材を四角形状に組み合わせて形成されたフィルタ枠３に収納して、フィルタパック１を構成する濾材１’のジグザグ状の稜線に対して垂直方向の両端部１ｔｐとフィルタ枠３の側枠板３’との間を、通風方向の上流側及び／又は下流側から線シール４’した。そして、図２（ｂ）に示すように、フィルタ枠３に収容したフィルタパック１の濾材１’のジグザグ状の端部に設けた平面部１ｔと、フィルタ枠３の内側面とを面接触させ、フィルタパック１の上流側となる通風面の全周部とフィルタ枠３の内側面の全周部との間を、発泡ウレタン樹脂製シール剤で線シール４してエアフィルタ５を得た。
濾材１’のジグザグ状の端縁に沿ってリボン材２’を設けた面を、フィルタパック１の通風面とすることによって、フィルタパック１の通風面の全周部とフィルタ枠３の内側面の全周部との間を線シール４する際に、リボン材２’によって、シール剤がジグザグ状の濾材１’の間隔に浸入しにくくなり、線シール４するシール剤の量を少なくすることができる。 Then, as shown in FIGS. 2A and 2B, the filter pack 1 is housed in a filter frame 3 formed by combining four aluminum plates in a square shape. A line seal 4 ′ is formed between the upstream end 1 t and the side frame plate 3 ′ of the filter frame 3 from the upstream side and / or the downstream side in the ventilation direction with respect to the zigzag ridge line of the constituting filter medium 1 ′. . Then, as shown in FIG. 2 (b), the flat portion 1 t provided at the zigzag end of the filter medium 1 ′ of the filter pack 1 accommodated in the filter frame 3 is brought into surface contact with the inner surface of the filter frame 3. The air filter 5 was obtained by wire-sealing 4 between the entire periphery of the ventilation surface on the upstream side of the filter pack 1 and the entire periphery of the inner surface of the filter frame 3 with a foamed urethane resin sealant.
By making the surface provided with the ribbon material 2 ′ along the zigzag edge of the filter medium 1 ′ as the ventilation surface of the filter pack 1, the entire periphery of the ventilation surface of the filter pack 1 and the inner surface of the filter frame 3 When the line seal 4 is made between the entire circumference of the ribbon, the ribbon material 2 ′ makes it difficult for the sealant to enter the gap between the zigzag filter media 1 ′, and the amount of the sealant to be line sealed 4 is reduced. Can do.

次に、本発明の他の実施例であるエアフィルタのフィルタパック１について図３の平面図を用いて説明する。図３に示すように、本実施例において、フィルタパック１は、次のように構成されている。極微細ガラス繊維製濾材１’をジグザグ状に折り畳み、濾材１’に塗布したホットメルト樹脂のリボン材によって濾材１’の折り曲げ空間の間隔を保持させるようにした。濾材１’が折り曲げられた際に、ジグザグ状となる濾材１’の両端縁近傍には、濾材１’の両面に、線状にホットメルト樹脂からなるリボン材２’、２”を塗布し、濾材１’が折り曲げられた際に、互いに当接したリボン材２’、２”を融着固化し、このリボン材２’、２”で構成される平面部１Ｔをフィルタパック１に設けるようにした。
そして、上記フィルタパック１を、４枚のアルミニウム製の板材を四角形状に組み合わせて形成されたフィルタ枠に収納して、フィルタパック１を構成する濾材１’のジグザグ状の稜線に対して垂直方向の両端部とフィルタ枠の側枠板の間を、通風方向の上流側及び／又は下流側から線シールした。また、フィルタ枠に収容したフィルタパック１の濾材１’のジグザグ状の端部に設けた平面部１Ｔと、フィルタ枠の内側面とを面接触させ、フィルタパック１の通風面の全周部とフィルタ枠の内側面の全周部との間を、発泡ウレタン樹脂製シール剤で線シールして、エアフィルタを得た。平面部１Ｔは、濾材１’の両面の濾材１’のジグザグ状の端縁に沿って線状に塗布されたリボン材２’、２”を互いに融着固化させて形成しているため、リボン材の不足等によって、平面部１Ｔ内に隙間が形成されることがない。このため、フィルタパック１の平面部１Ｔと、フィルタ枠の内側面との接触性が良くなる。 Next, a filter pack 1 of an air filter according to another embodiment of the present invention will be described with reference to the plan view of FIG. As shown in FIG. 3, in this embodiment, the filter pack 1 is configured as follows. The ultrafine glass fiber filter medium 1 ′ was folded in a zigzag shape, and the hot melt resin ribbon material applied to the filter medium 1 ′ kept the spacing of the folding space of the filter medium 1 ′. When the filter medium 1 'is bent, ribbon materials 2' and 2 "made of hot-melt resin are applied linearly on both sides of the filter medium 1 'in the vicinity of both ends of the zigzag filter medium 1'. When the filter medium 1 ′ is bent, the ribbon materials 2 ′ and 2 ″ that are in contact with each other are fused and solidified, and a flat surface portion 1 T constituted by the ribbon materials 2 ′ and 2 ″ is provided in the filter pack 1. did.
The filter pack 1 is housed in a filter frame formed by combining four aluminum plates in a square shape, and is perpendicular to the zigzag ridge line of the filter medium 1 ′ constituting the filter pack 1. Between the both ends of the filter and the side frame plate of the filter frame, line sealing was performed from the upstream side and / or the downstream side in the ventilation direction. Further, the flat surface portion 1T provided at the zigzag end of the filter medium 1 ′ of the filter pack 1 accommodated in the filter frame and the inner surface of the filter frame are brought into surface contact with each other, and the entire peripheral portion of the ventilation surface of the filter pack 1 An air filter was obtained by sealing with a foamed urethane resin sealant between the entire periphery of the inner surface of the filter frame. The flat surface portion 1T is formed by fusing and solidifying the ribbon materials 2 ′ and 2 ″ applied linearly along the zigzag edges of the filter media 1 ′ on both sides of the filter media 1 ′. A gap is not formed in the flat portion 1T due to lack of materials, etc. Therefore, the contact between the flat portion 1T of the filter pack 1 and the inner surface of the filter frame is improved.

次に、本発明の他の実施例であるエアフィルタを図４を用いて説明する。図４（ａ）に示すように、本実施例において、フィルタパック１１は、極微細ガラス繊維製濾材１１’をジグザグ状に折り畳み、濾材１１’に塗布したホットメルト樹脂のリボン材１２によって濾材１１’の折り曲げ空間の間隔を保持させるようにした。濾材１１’が折り曲げられた際に、ジグザグ状となる濾材１１’の両端縁近傍には、線状にホットメルト樹脂のリボン材１２’を塗布し、濾材１１’が折り曲げられた際に、当接したリボン材１２’で、フィルタパック１１に平面部１１ｔを設けるようにした。
次に、図４（ｂ）に示すように、フィルタパック１１のジグザグ状の稜線に対する垂直方向の一端部１１ｔｐからリボン材１２，１２’と平行となるように、２箇所の切り込み１６ａ、１６ｂを入れて、この２箇所の切り込み１６ａ、１６ｂを繋ぐように、切り込み１６ｃを入れて、切り欠き部１６を形成し、コ字状の異形のフィルタパック１１”とした。
次に、切り欠き部１６が形成されてコの字状となったフィルタパック１１”を、図４（ｃ）に示すように通風面の形状が同じくコの字状のＡＢＳ樹脂製の一体成型品のフィルタ枠１３に収納した。次に、図４（ｄ）に示すように、フィルタパック１１”の通風面の全周部とフィルタ枠１３の内側面の全周部との間を通風方向の下流側から発泡ウレタン樹脂製シール剤で線シール１４して、シール性の高いエアフィルタを得た。 Next, an air filter according to another embodiment of the present invention will be described with reference to FIG. As shown in FIG. 4 (a), in this embodiment, the filter pack 11 includes a filter medium 11 made of a hot melt resin ribbon material 12 that is formed by folding an ultrafine glass fiber filter medium 11 'in a zigzag shape and applied to the filter medium 11'. 'Folding space spacing was kept. When the filter medium 11 ′ is bent, a ribbon material 12 ′ of hot-melt resin is applied in the vicinity of both ends of the zigzag filter medium 11 ′, and when the filter medium 11 ′ is bent, The flat surface portion 11t is provided on the filter pack 11 with the ribbon material 12 ′ in contact therewith.
Next, as shown in FIG. 4B, two notches 16a and 16b are formed so as to be parallel to the ribbon materials 12 and 12 ′ from one end portion 11tp in the direction perpendicular to the zigzag ridgeline of the filter pack 11. Then, the notch 16c is formed so as to connect the two notches 16a and 16b, and the notch portion 16 is formed to obtain a U-shaped irregularly shaped filter pack 11 ″.
Next, the filter pack 11 ″ having the U-shape formed with the notch 16 is integrally molded of ABS resin having the same U-shape as shown in FIG. 4C. Next, as shown in FIG. 4 (d), the ventilation direction is between the entire circumference of the ventilation surface of the filter pack 11 "and the entire circumference of the inner surface of the filter frame 13, as shown in FIG. From the downstream side, a line seal 14 was made with a foamed urethane resin sealant to obtain an air filter with high sealing performance.

コの字状の異形のフィルタパックを形成する場合は、図５（ａ）に示すように、１枚の大きな濾材２１’と、２枚の小さな濾材３１’、４１’を用いて、フィルタパック２１、３１、４１を形成してもよい。濾材２１’、３１’、４１’には、間隔保持材としてのホットメルト樹脂からなるリボン材２２、３２、４２を塗布して、濾材２１’、３１’、４１’をジグザグ状に折り畳んでフィルタパック２１、３１、４１を構成する。折り畳まれる濾材２１’、３１’、４１’のジグザグ状の両端縁近傍には、濾材２１’、３１’、４１’の端縁に沿って、ホットメルト樹脂からなるリボン材２２’、３２’、４２’を塗布し、濾材２１’、３１’、４１’が折り曲げられた際に、当接したリボン材２２’、３２’、４２’で構成される平面部２１ｔａ，２１ｔｂ、３１ｔａ，３１ｔｂ、４１ｔａ，４１ｔｂをそれぞれのフィルタパック２１、３１、４１に設けるようにした。
次に、図５（ｂ）に示すように、一つの大きなフィルタパック２１を構成する濾材２１’のジグザグ状の稜線に対して垂直方向の一方の端部２１ｔｐに、フィルタパック２１の一方の平面部２１ｔｂと、フィルタパック４１の平面部４１ｔｂが同一平面を構成するように接合させた。また、図５（ｃ）に示すように、フィルタパック２１の一方の端部２１ｔｐに、フィルタパック２１の他方の平面部２１ｔａと、フィルタパック３１の平面部３１ｔａが同一平面を構成するように接合させて、コ字状の異形のフィルタパック５１を形成した。
このように、複数のフィルタパックを組み合わせて異形のフィルタパックを構成する場合は、各フィルタパックを構成する濾材のジグザグ状の両端部にリボン材を塗布して、フィルタ枠の内側面と面接触する平面部を、各フィルタパックに設けることができる。
そして、通風面の形状が同じくコの字状のＡＢＳ樹脂製の一体成型品のフィルタ枠内に、フィルタパック５１を収容し、フィルタパック５１を構成する各フィルタパック２１、３１、４１の各平面部２１ｔａ，２１ｔｂ、３１ｔａ，３１ｔｂ、４１ｔａ，４１ｔｂと、フィルタ枠の内側面を密着させて、フィルタパック５１の通風面の全周部とフィルタ枠の内側面の全周部とを線シールした。このように、フィルタ枠の内側面の全周部との間を通風方向の下流側から発泡ウレタン樹脂製シール剤で線シールすることによって、異形のフィルタパックを用いる場合であっても、簡単なシール作業により確実なシール性を有するエアフィルタを得ることができる。 In the case of forming a U-shaped irregular filter pack, as shown in FIG. 5 (a), the filter pack is formed by using one large filter medium 21 'and two small filter media 31' and 41 '. 21, 31, 41 may be formed. The filter media 21 ', 31', 41 'are coated with ribbon materials 22, 32, 42 made of hot-melt resin as a spacing maintaining material, and the filter media 21', 31 ', 41' are folded in a zigzag shape to obtain a filter. The packs 21, 31, 41 are configured. In the vicinity of the zigzag end edges of the filter media 21 ', 31', 41 'to be folded, along the edges of the filter media 21', 31 ', 41', ribbon materials 22 ', 32' made of hot melt resin, When 42 'is applied and the filter media 21', 31 ', 41' are bent, the flat portions 21ta, 21tb, 31ta, 31tb, 41ta composed of the ribbon materials 22 ', 32', 42 'that are in contact with each other. , 41tb are provided in the respective filter packs 21, 31, 41.
Next, as shown in FIG. 5 (b), one plane of the filter pack 21 is placed on one end 21 tp perpendicular to the zigzag ridge line of the filter medium 21 ′ constituting one large filter pack 21. The part 21tb and the flat part 41tb of the filter pack 41 were joined so as to form the same plane. Further, as shown in FIG. 5C, the other flat surface portion 21ta of the filter pack 21 and the flat surface portion 31ta of the filter pack 31 are joined to one end portion 21tp of the filter pack 21 so as to form the same plane. Thus, a U-shaped irregular shaped filter pack 51 was formed.
In this way, when a plurality of filter packs are combined to form an irregular filter pack, ribbon material is applied to both zigzag ends of the filter medium constituting each filter pack, and the inner surface of the filter frame is in surface contact. A flat surface portion can be provided in each filter pack.
And the filter pack 51 is accommodated in the filter frame of the integrally molded product made of ABS resin having the same U-shaped ventilation surface, and each plane of the filter packs 21, 31, 41 constituting the filter pack 51. The portions 21ta, 21tb, 31ta, 31tb, 41ta, 41tb and the inner surface of the filter frame were brought into close contact with each other, and the entire peripheral portion of the ventilation surface of the filter pack 51 and the entire peripheral portion of the inner surface of the filter frame were line-sealed. In this way, even if a deformed filter pack is used, it is easy to line seal with the foamed urethane resin sealant from the downstream side in the ventilation direction between the inner peripheral surface of the filter frame and the entire circumference. An air filter having a reliable sealing property can be obtained by the sealing operation.

尚、前記実施例では、エアフィルタに使用する濾材として、極微細ガラス繊維製濾材を用いたが、ＨＥＰＡ、ＵＬＰＡ、または超ＵＬＰＡを構成できるガラス繊維製、帯電合成繊維製、ＰＴＦＥ膜製繊維等の不織布またはシート状のものを用いるようにしてもよい。また、同様に前記実施例では、シール剤として、発泡ウレタン樹脂製シール剤を用いたが、主剤と硬化剤から成る２液混合タイプの硬化性合成樹脂である、ウレタン樹脂、エポキシ樹脂、またはシリコン樹脂等を使用するのが好ましく、その中でも特に低発泡の独立気泡をもつ発泡ウレタンの使用が好ましい。また、同様に前記実施例では、フィルタパックの濾材の折り曲げ空間を保持するのに、ホットメルト樹脂等から成るリボン状間隔材を濾材のひだ頂部同士、全長に亘り塗布形成したが、ジグザグに折り畳んだアルミ箔等の金属箔、または合成樹脂製のセパレータを濾材間に挿入することにより間隔保持するようにしてもよい。   In the above-described embodiment, an ultrafine glass fiber filter medium is used as the filter medium used in the air filter. However, a glass fiber, a charged synthetic fiber, a PTFE membrane fiber, etc. that can constitute HEPA, ULPA, or ultra-ULPA, etc. A non-woven fabric or a sheet-like material may be used. Similarly, in the above embodiment, a foamed urethane resin sealant was used as the sealant, but a urethane resin, an epoxy resin, or silicon, which is a two-component mixed type curable synthetic resin composed of a main agent and a curing agent. It is preferable to use a resin or the like, and among these, it is particularly preferable to use urethane foam having low foaming closed cells. Similarly, in the above-described embodiment, in order to maintain the folding space of the filter medium of the filter pack, a ribbon-like spacing material made of hot melt resin or the like is applied and formed over the entire length of the pleats of the filter medium, but it is folded zigzag. Alternatively, a metal foil such as an aluminum foil or a synthetic resin separator may be inserted between the filter media to keep the gap.

本発明のエアフィルタのフィルタパックの一実施の形態を示す部分斜視図The fragmentary perspective view which shows one Embodiment of the filter pack of the air filter of this invention （ａ）本発明のエアフィルタの一実施の形態を示す正面図、（ｂ）エアフィルタの一部破断部分を含む斜視図(A) The front view which shows one embodiment of the air filter of this invention, (b) The perspective view containing the partially broken part of an air filter 本発明のエアフィルタのフィルタパックの他の実施の形態を示し、フィルタパックの一部を示す平面図The top view which shows other embodiment of the filter pack of the air filter of this invention, and shows a part of filter pack 本発明のエアフィルタの他の実施の形態を示す説明図Explanatory drawing which shows other embodiment of the air filter of this invention. 本発明のエアフィルタのフィルタパックの他の実施の形態を示す説明図Explanatory drawing which shows other embodiment of the filter pack of the air filter of this invention 従来例のエアフィルタの説明図Explanatory drawing of conventional air filter

符号の説明Explanation of symbols

１ フィルタパック
１’ 濾材
１ｔ 平面部
１ｔｐ 稜線に対して垂直方向の端部
１Ｔ 平面部
２ リボン材
２’ リボン材
２” リボン材
３ フィルタ枠
３’ 側枠板
４ 線シール
４’ 線シール
５ エアフィルタ
１１ フィルタパック
１１’ 濾材
１１” コ字状のフィルタパック
１１ｔ 平面部
１１ｔｐ 一端部
１２ リボン材
１２’ リボン材
１３ フィルタ枠
１４ 線シール
１５ エアフィルタ
１６ 切り欠き部
１６ａ 切り込み線
１６ｂ 切り込み線
１６ｃ 切り込み線
２１ フィルタパック
２１’ 濾材
２１ｔａ 平面部
２１ｔｂ 平面部
２２ リボン材
２２’ リボン材
３１ フィルタパック
３１’ 濾材
３１ｔａ 平面部
３１ｔｂ 平面部
３２ リボン材
３２’ リボン材
４１ フィルタパック
４１’ 濾材
４１ｔａ 平面部
４１ｔｂ 平面部
４２ リボン材
４２’ リボン材
５１ フィルタパック
６１ フィルタパック
６１’ 濾材
６１” リボン材
６１ｓ 両端部
６１ｔａ ジグザグ状の端部
６１ｔｂ ジグザグ状の端部
６２ フィルタ枠
６２ｓ 側枠板
６２ｄ 下枠板
６２ｕ 上枠板
６３ 線状シール DESCRIPTION OF SYMBOLS 1 Filter pack 1 'Filter medium 1t Plane part 1tp End part perpendicular to ridgeline 1T Plane part 2 Ribbon material 2' Ribbon material 2 "Ribbon material 3 Filter frame 3 'Side frame plate 4 Line seal 4' Line seal 5 Air Filter 11 Filter pack 11 'Filter medium 11 "U-shaped filter pack 11t Flat part 11tp One end 12 Ribbon material 12' Ribbon material 13 Filter frame 14 Wire seal 15 Air filter 16 Notch 16a Cut line 16b Cut line 16c Cut line 21 filter pack 21 'filter medium 21ta plane section 21tb plane section 22 ribbon material 22' ribbon material 31 filter pack 31 'filter medium 31ta plane section 31tb plane section 32 ribbon material 32' ribbon material 41 filter pack 41 'filter medium 41ta plane section 41tb plane section 42 Ribbon Material 42 'Ribo Material 51 filter pack 61 filter pack 61 'the filter medium 61 "ribbon material 61s both end portions 61ta zigzag edge 61tb zigzag-shaped end 62 the filter frame 62s side frame plate 62d sill plate 62u upper frame plate 63 linear seal

Claims (5)

フィルタパックを構成するジグザグに折り畳まれた濾材のジグザグ状の端部に、平面部を設けてフィルタ枠に収納し、前記フィルタパックの通風面の全周部とフィルタ枠の内側面の全周部をシール剤で線シールしたエアフィルタであって、前記平面部が、前記濾材のジグザグ状の端縁近傍に塗布したリボン材を当接させてなることを特徴とするエアフィルタ。   A flat portion is provided in the zigzag end of the filter medium that is folded into a zigzag that constitutes the filter pack, and is stored in the filter frame. The entire perimeter of the ventilation surface of the filter pack and the entire perimeter of the inner surface of the filter frame An air filter wherein the flat portion is made to contact a ribbon material applied in the vicinity of a zigzag edge of the filter medium. 前記リボン材を、前記濾材の少なくとも片面に、前記濾材のジグザグ状の端縁に沿って線状に塗布したことを特徴とする請求項１記載のエアフィルタ。   2. The air filter according to claim 1, wherein the ribbon material is applied linearly along at least one side of the filter medium along a zigzag edge of the filter medium. 前記リボン材を、前記濾材の両面に、前記濾材のジグザグ状の端縁に沿って線状に塗布し、前記平面部が、前記リボン材を互いに融着させてなることを特徴とする請求項１記載のエアフィルタ。   The ribbon material is applied to both sides of the filter medium in a line along a zigzag edge of the filter medium, and the flat portion is formed by fusing the ribbon material to each other. The air filter according to 1. フィルタパックを構成するジグザグ状に折り畳まれた濾材のジグザグ状の端部に、前記濾材のジグザグ状の端縁近傍に塗布されたリボン材により形成された平面部を設けたフィルタパックの複数個を、前記濾材のジグザグ状の稜線に対して垂直方向に隣接させてフィルタ枠に収納し、前記隣接させたフィルタパックの前記濾材の隣接する端面間をシール剤で線シールするとともに、前記隣接させたフィルタパックの通風面の全周部とフィルタ枠の内側面の全周部とをシール剤で線シールしたことを特徴とするエアフィルタ。   A plurality of filter packs provided with a flat portion formed by a ribbon material applied in the vicinity of the zigzag end of the filter medium at the zigzag end of the filter medium folded in a zigzag form constituting the filter pack. The filter medium is vertically adjacent to the zigzag ridgeline of the filter medium and is stored in the filter frame, and the adjacent filter packs of the adjacent filter pack are line-sealed with a sealant and the adjacent filter faces. An air filter characterized in that the entire periphery of the ventilation surface of the filter pack and the entire periphery of the inner surface of the filter frame are line-sealed with a sealant. 前記フィルタ枠が繋ぎ目のない一体成型品であることを特徴とする請求項１乃至４のいずれかに記載のエアフィルタ。   The air filter according to any one of claims 1 to 4, wherein the filter frame is an integrally molded product having no joints.
JP2005104835A 2005-03-31 2005-03-31 Air filter Active JP4100573B2 (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009090263A (en) * 2007-10-12 2009-04-30 Panasonic Corp Dust collection filter
CN104226026A (en) * 2013-06-13 2014-12-24 日本无机株式会社 Air filter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009090263A (en) * 2007-10-12 2009-04-30 Panasonic Corp Dust collection filter
CN104226026A (en) * 2013-06-13 2014-12-24 日本无机株式会社 Air filter
JP2015000357A (en) * 2013-06-13 2015-01-05 日本無機株式会社 Air filter

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