JPH0440206A - Filter element and preparation thereof - Google Patents

Filter element and preparation thereof

Info

Publication number
JPH0440206A
JPH0440206A JP2147458A JP14745890A JPH0440206A JP H0440206 A JPH0440206 A JP H0440206A JP 2147458 A JP2147458 A JP 2147458A JP 14745890 A JP14745890 A JP 14745890A JP H0440206 A JPH0440206 A JP H0440206A
Authority
JP
Japan
Prior art keywords
filter paper
adhesive
built
folded
parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2147458A
Other languages
Japanese (ja)
Inventor
Kenichi Ishii
健一 石井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Roki Co Ltd
Original Assignee
Tokyo Roki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Roki Co Ltd filed Critical Tokyo Roki Co Ltd
Priority to JP2147458A priority Critical patent/JPH0440206A/en
Publication of JPH0440206A publication Critical patent/JPH0440206A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B01D46/523—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with means for maintaining spacing between the pleats or folds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtration Of Liquid (AREA)

Abstract

PURPOSE:To enhance filtering efficiency by keeping the intervals between chevron-shape folded leading end parts almost equal by bringing built-up parts of an adhesive to a mutual contact state by providing the built-up parts of the adhesives between the adjacent chevron-shape folded leading end parts of bellows-like filter paper. CONSTITUTION:An adhesive is injected to the gaps between the leading end parts of the mutually adjacent chevron-shape folded parts of filter paper 12 folded in a bellows-like or pleated state at almost symmetric positions holding folded ridgelines (a) therebetween and cured to provide built-up parts 34. The intervals between said leading end parts of the filter paper 12 are held by the built-up parts 34. By this simple method, the intervals between the chevron-shape folded parts are equally held and the shift of the filter paper can be prevented and filtering efficiency can be enhanced.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、エアクリーナとかオイルフィルタ等の濾過器
に用いられるフィルタエレメントおよびその製法に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a filter element used in a filter such as an air cleaner or an oil filter, and a method for manufacturing the same.

（従来の技術） 一般に、エアクリーナとかオイルフィルタ等の濾過器は
、ケース内に収納されるフィルタエレントを有し、この
ケース内に導入された空気とがオイル等の流体が、この
フィルタエレメントを通過することにより濾過されて浄
化される構成となっている。(Prior Art) Generally, a filter such as an air cleaner or an oil filter has a filter element housed in a case, and air introduced into the case and fluid such as oil pass through this filter element. It is configured to be filtered and purified by passing through it.

前記フィルタエレメントは不織布等の濾紙を蛇腹状又は
プリーツ状に折曲することにより構成され、例えば、こ
のように蛇腹状又はプリーツ状に折曲されたものを全体
的に環状に周回したものが多く用いられる。The filter element is constructed by folding a filter paper such as a non-woven fabric into a bellows shape or a pleat shape. used.

（発明が解決しようとする課題） しかしながら、かかる従来のフィルタエレメントにあっ
ては、蛇腹状又はプリーツ状に折曲された濾紙を周回し
た場合、特に、その外周部において蛇腹状又はプリーツ
状に折曲した際の山折り部分間の間隔をそれぞれ均等に
設定するのが困難となり、この間隔が片寄った場合は濾
過効率の低下が来されてしまう。(Problem to be Solved by the Invention) However, in such a conventional filter element, when a filter paper folded in a bellows shape or a pleat shape is circulated, the filter paper is folded in a bellows shape or a pleat shape, especially at the outer periphery. It is difficult to set equal intervals between the mountain folds when bent, and if the intervals are uneven, the filtration efficiency will decrease.

また、フィルタエレメントに目詰りが発生すると、前記
山折り部分が一箇所に散出づつ集合してしまい、遂には
集合された山折り部分の端に裂は目が発生し、この裂は
目から流体が洩れてしまう。Furthermore, if the filter element becomes clogged, the mountain folds will scatter and gather in one place, and eventually cracks will form at the ends of the gathered mountain folds, and these cracks will not be visible. Fluid leaks.

そこで、前記山折り部分間の間隔を均等に保つ手段とし
て、特公昭６２−３２９６２号公報に開示された技術が
ある。この技術は濾紙自体の折り方を一部分において変
化させ、この変化させた部分で隣接する山折り部分間の
間隔を保持するようにしたものである。Therefore, there is a technique disclosed in Japanese Patent Publication No. Sho 62-32962 as a means for keeping the intervals between the mountain folds even. In this technique, the way the filter paper itself is folded is changed in one part, and the distance between adjacent mountain folds is maintained in this changed part.

しかし、これはあくまでも濾紙自体で山折り部分間の間
隔を保持しようとするものであり、目詰りが生じたとき
の過大な潰れ力若しくは膨脹力が作用すると、間隔を保
持した濾紙部分が変形して、やはり山折り部分の片寄り
が発生すると共に、間隔保持部分が強く変形すると、こ
れの折り目部分に裂は目が発生される恐れがある。However, this is just an attempt to maintain the spacing between the mountain folds in the filter paper itself, and if excessive crushing or expansion force is applied when clogging occurs, the filter paper portion that maintains the spacing will be deformed. Therefore, if the mountain fold portion is shifted to one side and the spacing portion is strongly deformed, there is a risk that cracks may occur in the fold portion.

更に、山折り部分間の間隔を保持する従来の方法として
は、濾紙を蛇腹状又はプリーツ状に折曲して環状に周回
した後、これの外周に接着剤を塗着するようにしたもの
がある。Furthermore, a conventional method for maintaining the spacing between the mountain folds is to fold the filter paper into a bellows or pleat shape, wrap it around in a ring, and then apply adhesive to the outer periphery of the filter paper. be.

しかしながら、この方法では間隔にバラツキがある状態
で接着剤を塗着するので、間隔を均一に保つことが難し
く、また、接着剤が流れ落ちて濾紙の濾過有効部分を閉
塞すると共に、接着剤を適正な位置に射出する工程が複
雑となって生産能率が悪いものとなってしまうという課
題があった。However, with this method, the adhesive is applied with varying spacing, making it difficult to maintain uniform spacing.Also, the adhesive may run down and block the effective filtration area of the filter paper, and the adhesive may not be properly applied. There was a problem in that the process of injecting at certain positions was complicated, resulting in poor production efficiency.

そこで、本発明はかかる従来の課題に鑑みて成されたも
ので、簡単な方法により山折り部分間の間隔を均等に保
持し、しかも、濾紙の片寄りを確実に防止することがで
きるフィルタエレメントおよびその製法を提供すること
を目的とする。Therefore, the present invention has been made in view of such conventional problems, and is a filter element that can maintain an even spacing between the mountain-folded portions by a simple method and also reliably prevent the filter paper from shifting. and its manufacturing method.

（課題を解決するための手段） かかる目的を達成するために本発明のフィルタエレメン
トは、蛇腹状又はプリーツ状に折曲された濾紙の互いに
隣接する山折り先端部間に、その折曲稜線を挾んだ略対
称位置に接着剤を射出されして硬化させた肉盛り状部を
設け、この肉盛り状部で前記濾紙間の間隔を保持するこ
とにより構成する。(Means for Solving the Problems) In order to achieve the above object, the filter element of the present invention has a folding ridge line between adjacent peak-folded tips of a filter paper folded into an accordion shape or a pleat shape. It is constructed by providing built-up portions in which adhesive is injected and hardened at substantially symmetrical positions between the two, and the spacing between the filter papers is maintained by the built-up portions.

また、その製法としては、濾紙を略水平状態に展開した
状態で、予め設定された折曲稜線を挾んだ略対称位置に
接着剤を肉盛り状に射出して硬化させる接着剤肉盛り工
程と、前記折曲稜線に沿って蛇腹状又はプリーツ状に折
曲する濾紙折曲工程とを備えることにより構成す名。In addition, the manufacturing method involves an adhesive build-up process in which adhesive is injected in a build-up shape at approximately symmetrical positions sandwiching a preset bending ridge line while the filter paper is unfolded in an approximately horizontal state, and then hardened. and a filter paper folding step of folding the filter paper into a bellows shape or a pleat shape along the folding ridge line.

（作用） 以上の構成により本発明のフィルタエレメントにあって
は、隣接する山折り先端部間に接着剤の肉盛り状部が設
けられ、この肉盛り状部により山折り先端部間の間隔が
保持されるため、山折り先端部の片寄りを防止して濾過
効率を向上することができる。(Function) With the above-described configuration, in the filter element of the present invention, a built-up portion of adhesive is provided between adjacent mountain-folded tip portions, and the gap between the mountain-folded tip portions is reduced by this built-up portion. Since it is held, it is possible to prevent the tip of the mountain fold from shifting to one side, thereby improving filtration efficiency.

また、肉盛り状部の接着剤は、これが硬化されることに
よりその強度が大きな′ものとなり、このため肉盛り状
部が潰れたり広がったりすることがないため、山折り部
分間の間隔はフィルタエレメントの目詰りによって変化
することが確実に防止される。In addition, the adhesive on the built-up portion becomes stronger as it hardens, and as a result, the built-up portion does not collapse or expand, so the spacing between the mountain folds is adjusted using a filter. Changes due to element clogging are reliably prevented.

また、本発明のフィルタエレメントの製法にあっては、
濾紙の水平方向の展開状態で接着剤肉盛り工程が施され
るため、接着剤の流れ落ちを防止しつつ、この接着剤の
射出作業を著しく簡単化することができる。Furthermore, in the method for manufacturing the filter element of the present invention,
Since the adhesive build-up process is performed while the filter paper is in a horizontally unfolded state, the adhesive injection work can be significantly simplified while preventing the adhesive from flowing down.

（実施例） 以下、本発明の実施例を図に基づいて詳細に説明する。(Example) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

即ち、第１図、第２図は本発明の一実施例を示すフィル
タエレメント１０の要部拡大図で、このフィルタエレメ
ント１０は、不織布等の濾紙１２を順次山折りおよび谷
折りすることにより蛇腹状に折曲し、この蛇腹状に折曲
したものを全体的に環状とすることにより構成される。That is, FIGS. 1 and 2 are enlarged views of essential parts of a filter element 10 showing an embodiment of the present invention. It is constructed by bending it into a bellows shape and making the whole into an annular shape.

そして、かかるフィルタエレメント１０は、例えば第３
図に示すオイルフィルタ１４に適用される。The filter element 10 is, for example, a third filter element.
It is applied to the oil filter 14 shown in the figure.

前記オイルフィルタ１４はカートリッジタイプとして構
成され、自動車のエンジンオイルの濾過に用いられるも
ので、有底筒状の容器１６内に環状の前記フィルタエレ
ント１０が収納されると共に、この容器１６の解放口１
８が閉止板２０により閉止されるようになっている。The oil filter 14 is configured as a cartridge type and is used for filtering engine oil of automobiles. Mouth 1
8 is closed by a closing plate 20.

また、前記フィルタエレメント１０の内周には多孔板で
形成された筒状の補強筒２２が設けられると共に、フィ
ルタエレメント１０の上端および下端はエンドプレート
２４．２６によって閉止されるようになっている。Further, a cylindrical reinforcing tube 22 formed of a perforated plate is provided on the inner periphery of the filter element 10, and the upper and lower ends of the filter element 10 are closed by end plates 24 and 26. .

更に、前記閉止板２０の中央部には排出口２８が形成さ
れると共に、その周縁部には複数の導入口３０が形成さ
れ、これら排出口２８および導入口３０は図外のシリン
ダブロックに形成されたオイルの給排通路に連通される
。Furthermore, a discharge port 28 is formed in the center of the closing plate 20, and a plurality of inlet ports 30 are formed in the peripheral portion thereof, and these discharge ports 28 and inlet ports 30 are formed in a cylinder block (not shown). It communicates with the oil supply and discharge passage.

そして、前記導入口３０から容器１６内に導入されたオ
イルは、フィルタエレメント１０を内径方向に通過して
濾過され、この濾過されたオイルは排出口２８からオイ
ルギヤラリに戻される。The oil introduced into the container 16 from the inlet 30 passes through the filter element 10 in the inner diameter direction and is filtered, and the filtered oil is returned to the oil gear gallery from the outlet 28.

ここで、本実施例のフィルタエレメント１０にあっては
、蛇腹状に折曲された濾紙１２の外周側の各山折り部分
３２の先端部両側に接着剤の肉盛り状部３４が半球形に
肉盛りして形成されている。Here, in the filter element 10 of the present embodiment, a hemispherical padded portion 34 of adhesive is formed on both sides of the tip of each mountain-folded portion 32 on the outer circumferential side of the filter paper 12 that is bent into a bellows shape. It is made of meat.

肉盛り状部３４は、互いに隣接する山折り部分３２間で
相互に当接している。The built-up portions 34 are in contact with each other between the mountain-fold portions 32 that are adjacent to each other.

また、前記肉盛り状部３４は、第２図に示したように前
記山折り部分３２の稜線ａ方向には、この山折り部分３
２の変形を防止するに十分な距離ｇをもって部分的に配
置される。Further, as shown in FIG.
2 with a distance g sufficient to prevent deformation.

ところで、前記フィルタエレメント１０を製造するには
、第４図に示すように濾紙１２を略水平状態に展開して
おき、この水平な展開状態で予め設定された山折りされ
る稜線ａの両側にあって、この稜線ａを挟んだ略対称位
置に距離ｇを離して接着剤を射出する。By the way, in order to manufacture the filter element 10, the filter paper 12 is unfolded in a substantially horizontal state as shown in FIG. Then, the adhesive is injected at substantially symmetrical positions across this ridgeline a, separated by a distance g.

そして、前記接着剤は、本実施例では熱硬化性樹脂が用
いられ、この接着剤を射出した後、濾紙１２を炉に通し
てこれを硬化させることで肉盛り状部３４が形成される
。The adhesive used in this embodiment is a thermosetting resin, and after the adhesive is injected, the filter paper 12 is passed through a furnace to be cured, thereby forming the built-up portion 34.

次に、前記肉盛り状部３４が形成された前記濾紙１２は
、予め設定された前記山折り線ａおよび谷折り線すに沿
って蛇腹状に折曲する工程が施される。Next, the filter paper 12 with the built-up portion 34 formed thereon is subjected to a step of folding into an accordion shape along the preset mountain fold line a and valley fold line A.

以上の構成により本実施例のフィルタエレメント１０に
あっては、各山折り部分３２の先端部両側に半球状の肉
盛り状部３４が形成されているため、隣接する前記山折
り部分３２間の間隔は、前記肉盛り状部３４が相互に当
接することにより保持される。With the above configuration, in the filter element 10 of this embodiment, the hemispherical built-up portions 34 are formed on both sides of the tip of each mountain-folded portion 32, so that the area between the adjacent mountain-folded portions 32 is The spacing is maintained by the padded portions 34 coming into contact with each other.

このため、各山折り部分３２は周方向に略等間隔に配置
できることになり、しかも、フィルタエレメント１０が
目詰りを生じた場合にも、山折り部分３２が片寄るのを
、強度の大きな接着剤の肉盛り状部３４で阻止すること
ができるため、山折り部分３２が部分的に集合されてし
まうのを防止できる。Therefore, each mountain fold portion 32 can be arranged at approximately equal intervals in the circumferential direction, and even if the filter element 10 becomes clogged, a strong adhesive can be used to prevent the mountain fold portion 32 from shifting to one side. Since this can be prevented by the built-up portion 34, it is possible to prevent the mountain-fold portions 32 from being partially gathered together.

従って、フィルタエレメント１０の濾過効率を高く維持
できると共に、目詰りを生じた場合に濾紙１２が大きく
変形するのを防止して、濾紙１２の破損を避けることが
できる。Therefore, the filtration efficiency of the filter element 10 can be maintained at a high level, and when clogging occurs, the filter paper 12 can be prevented from being greatly deformed, and damage to the filter paper 12 can be avoided.

尚、前記肉盛り状部３４は、稜線ａ方向に対して距離ｐ
を隔てた対称位置に部分的に設けられるのみであるため
、この肉盛り状部３４を設けたことで流体の通過に支障
が来されることはない。Note that the built-up portion 34 has a distance p with respect to the direction of the ridge line a.
Since it is only partially provided at a symmetrical position across the gap, the provision of this built-up portion 34 does not impede the passage of fluid.

また、本実施例では前記フィルタエレメント１０を製造
するにあたって、肉盛り状部３４を形成する接着剤の射
出は濾紙１２を略水平に展開した状態で行われるため、
この接着剤の射出を常に上方から下方に向かって行えば
よく、この射出作業を大幅に簡単化し、しかも、接着剤
が流れ落ちるのを防止することができる。Furthermore, in this embodiment, when manufacturing the filter element 10, the injection of the adhesive forming the built-up portion 34 is performed with the filter paper 12 spread out approximately horizontally.
It is sufficient to always inject the adhesive from the top to the bottom, which greatly simplifies the injection work and prevents the adhesive from flowing down.

ところで、前記実施例では外周に配置される山折り部分
３２の両側に肉盛り状部３４が射出される場合を開示し
たが、これに限ることなく第５図に示すように、内周に
配置される山折り部分３６の先端部両側にも更に肉盛り
状部３４を設けてもよい。Incidentally, in the above embodiment, the case where the built-up parts 34 are injected on both sides of the mountain-folded part 32 arranged on the outer periphery is disclosed, but the invention is not limited to this, and as shown in FIG. A built-up portion 34 may also be provided on both sides of the tip of the mountain-folded portion 36.

尚、この場合は展開した濾紙１２の片面に接着剤を射出
した後、この濾紙１２を裏返して反対面に再度接着剤を
射出することになり、この場合の接着剤の射出部位は、
第６図に示すように片面は実線１反対面は破線で示した
位置となる。In this case, after the adhesive is injected onto one side of the unfolded filter paper 12, the filter paper 12 is turned over and the adhesive is injected again onto the opposite side.In this case, the adhesive injection site is as follows:
As shown in FIG. 6, one side is at the position shown by the solid line, and the other side is at the position shown by the broken line.

また、フィルタエレメント１０の濾紙１２の折り方は前
記実施例に限定されることはなく、例えば、第７図に示
すように長く折った部分３８と短く折った部分４０とが
交互に配置されるものにあっても、本考案を適用できる
ことはいうまでもない。Furthermore, the way in which the filter paper 12 of the filter element 10 is folded is not limited to the above embodiment, and for example, as shown in FIG. 7, long folded portions 38 and short folded portions 40 may be arranged alternately. It goes without saying that the present invention can be applied to any object.

更に、前記濾紙１２の折曲後の形状は、円筒状に限るこ
となく平板状に折曲することもできる。Furthermore, the shape of the filter paper 12 after being bent is not limited to a cylindrical shape, but can also be bent into a flat plate shape.

更にまた、本実施例では前記フィルタエレント１０をオ
イルフィルタ１４に適用した場合を例にとって説明した
が、これ以外の濾過器、例えば空気の濾過を行うエアク
リーナのフィルタエレメントにも本発明を適用できるこ
とは勿論である。Furthermore, in this embodiment, the case where the filter element 10 is applied to the oil filter 14 has been described as an example, but the present invention can also be applied to other filters, such as a filter element of an air cleaner that filters air. Of course.

（発明の効果） 以上説明したように本発明の請求項１に示すフィルタエ
レメントにあっては、隣接する山折り先端部間に接着剤
の肉盛り状部が設けられることにより、この肉盛り状部
が相互に当接することで山折り先端部間の間隔を略均等
に保持することができるため、濾過効率の著しい向上を
図ることができる。(Effects of the Invention) As explained above, in the filter element according to claim 1 of the present invention, the built-up portion of adhesive is provided between the adjacent mountain-folded tip portions, so that the built-up portion of the adhesive is Since the portions contact each other, the intervals between the mountain-folded tip portions can be maintained approximately evenly, so that the filtration efficiency can be significantly improved.

また、肉盛り状部の接着剤は、これが硬化することによ
りその強度が大きなものとなり、目詰りが発生した場合
にも山折り部分が片寄ってしまうのを確実に防止できる
ため、濾紙が裂けたりして破損するのを防止することが
できる。In addition, the adhesive on the built-up part becomes stronger as it hardens, and even if clogging occurs, the mountain-fold part will be prevented from shifting to one side, so the filter paper will not tear. This can prevent damage.

また、本発明の請求項２に示すフィルタエレントの製法
にあっては、濾紙の水平方向の展開状態で接着剤肉盛り
工程が施されるため、接着剤の流れ落ちを防止しつつ、
接着剤の射出作業を著しく簡単化することができる。In addition, in the method for manufacturing filter lent according to claim 2 of the present invention, since the adhesive build-up step is performed while the filter paper is in a horizontally unfolded state, the adhesive is prevented from flowing down, and
Adhesive injection work can be significantly simplified.

従って、接着剤の流れ落ちを防止できることにより、濾
紙の有効面積が狭くなってしまうのを極力最小限に保ち
、濾過機能の低下を無くすことができると共に、射出作
業の簡単化により生産能率の著しい向上を図り、大幅な
コスト低下を図ることができるという各種優れた効果を
奏する。Therefore, by preventing the adhesive from flowing down, it is possible to keep the narrowing of the effective area of the filter paper to the minimum possible, eliminating a decline in filtration function, and significantly improving production efficiency by simplifying the injection work. This brings about various excellent effects, including the ability to significantly reduce costs.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明にかかるフィルタエレメントの一実施例
の要部を示す平面図、第２図は本発明にかかるフィルタ
エレメントの要部斜視図、第３図は本発明が適用される
オイルフィルタの一実施例を示す断面図、第４図は本発
明にかかるフィルタエレメントの製法の一実施例を示す
説明図、第５図は本発明にかかるフィルタエレメントの
他の実施例を示す平面図、第６図は本発明にかかるフィ
ルタエレメントの製法の他の実施例を示す説明図、第７
図は本発明にかかるフィルタエレメントの更に他の実施
例を示す平面図である。 ＩＩＩ図 １０・・・・・・フィルタエレメント １２・・・・・・濾紙 １４・・・・・・オイルフィルタ（濾過器）３２・・・
・・・山折り部分 ３４・・・・・・肉盛り状部 ３６・・・・・・山折り部分 ａ・・・・・・稜線 第２図FIG. 1 is a plan view showing a main part of an embodiment of a filter element according to the present invention, FIG. 2 is a perspective view of a main part of a filter element according to the present invention, and FIG. 3 is an oil filter to which the present invention is applied. 4 is an explanatory view showing an example of the method for manufacturing a filter element according to the present invention; FIG. 5 is a plan view showing another example of the filter element according to the present invention; FIG. 6 is an explanatory diagram showing another embodiment of the method for manufacturing a filter element according to the present invention, and FIG.
The figure is a plan view showing still another embodiment of the filter element according to the present invention. III Figure 10...Filter element 12...Filter paper 14...Oil filter (filter) 32...
...Mountain fold portion 34...Made-up portion 36...Mountain fold portion a...Ridge line Fig. 2

Claims (2)

【特許請求の範囲】[Claims] （１）蛇腹状又はプリーツ状に折曲される濾紙の互いに
隣接する山折り先端部間に、その折曲稜線を挟んだ略対
称位置に接着剤を射出して硬化させた肉盛り状部を設け
、この肉盛り状部で前記濾紙間の間隔を保持することを
特徴とするフィルタエレメント。(1) Adhesive is injected and hardened into a built-up part between the adjacent mountain-folded tips of filter paper that is folded into a bellows or pleat shape at approximately symmetrical positions across the folding ridge line. A filter element characterized in that the spacing between the filter papers is maintained by the built-up portion. （２）濾紙を略水平状態に展開した状態で、予め設定さ
れた折曲稜線を挟んだ略対称位置に接着剤を肉盛り状に
射出して硬化させる接着剤肉盛り工程と、 前記折曲稜線に沿って蛇腹状又はプリーツ状に折曲する
濾紙折曲工程とを備えたことを特徴とするフィルタエレ
メントの製法。(2) an adhesive overlay step of injecting and curing adhesive at approximately symmetrical positions across a preset bending ridge line with the filter paper unfolded in a substantially horizontal state; 1. A method for manufacturing a filter element, comprising the step of folding a filter paper into a bellows shape or a pleat shape along a ridgeline.
JP2147458A 1990-06-07 1990-06-07 Filter element and preparation thereof Pending JPH0440206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2147458A JPH0440206A (en) 1990-06-07 1990-06-07 Filter element and preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2147458A JPH0440206A (en) 1990-06-07 1990-06-07 Filter element and preparation thereof

Publications (1)

Publication Number Publication Date
JPH0440206A true JPH0440206A (en) 1992-02-10

Family

ID=15430821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2147458A Pending JPH0440206A (en) 1990-06-07 1990-06-07 Filter element and preparation thereof

Country Status (1)

Country Link
JP (1) JPH0440206A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0570607U (en) * 1992-03-03 1993-09-24 日本濾過器株式会社 Filter element
EP0867216A1 (en) * 1997-03-29 1998-09-30 VORWERK & CO. INTERHOLDING GmbH Filter element comprising a flexible filter element material pleated in zig-zag fashion and process for its production
KR100521523B1 (en) * 2002-06-28 2005-10-12 현대자동차주식회사 Element fixing device for oil filter
WO2013182296A1 (en) * 2012-06-04 2013-12-12 Irema-Filter Gmbh Method for producing a nonwoven fabric
US9168471B2 (en) 2010-11-22 2015-10-27 Irema-Filter Gmbh Air filter medium combining two mechanisms of action
US10273611B2 (en) 2006-03-28 2019-04-30 Irema-Filter Gmbh Pleatable nonwoven material and method and apparatus for production thereof
JP2020040064A (en) * 2014-08-01 2020-03-19 ドナルドソン カンパニー，インコーポレイティド Filtration media pack
US10668424B2 (en) 2014-11-28 2020-06-02 Irema-Filter Gmbh Filter medium having large fold spacing
US11571645B2 (en) 2013-05-16 2023-02-07 Iremea-Filter Gmbh Fibrous nonwoven and method for the production thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0570607U (en) * 1992-03-03 1993-09-24 日本濾過器株式会社 Filter element
EP0867216A1 (en) * 1997-03-29 1998-09-30 VORWERK & CO. INTERHOLDING GmbH Filter element comprising a flexible filter element material pleated in zig-zag fashion and process for its production
KR100521523B1 (en) * 2002-06-28 2005-10-12 현대자동차주식회사 Element fixing device for oil filter
US10273611B2 (en) 2006-03-28 2019-04-30 Irema-Filter Gmbh Pleatable nonwoven material and method and apparatus for production thereof
US9168471B2 (en) 2010-11-22 2015-10-27 Irema-Filter Gmbh Air filter medium combining two mechanisms of action
WO2013182296A1 (en) * 2012-06-04 2013-12-12 Irema-Filter Gmbh Method for producing a nonwoven fabric
US11571645B2 (en) 2013-05-16 2023-02-07 Iremea-Filter Gmbh Fibrous nonwoven and method for the production thereof
JP2020040064A (en) * 2014-08-01 2020-03-19 ドナルドソン カンパニー，インコーポレイティド Filtration media pack
US11691102B2 (en) 2014-08-01 2023-07-04 Donaldson Company, Inc. Filtration media, pleated media pack, filter cartridge, and methods for manufacturing
US10668424B2 (en) 2014-11-28 2020-06-02 Irema-Filter Gmbh Filter medium having large fold spacing

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