JPH0131304Y2

JPH0131304Y2 -

Info

Publication number: JPH0131304Y2
Application number: JP10967385U
Authority: JP
Priority date: 1985-07-19
Filing date: 1985-07-19
Publication date: 1989-09-26
Also published as: JPS6220622U

Description

【考案の詳細な説明】《産業上の利用分野》この考案は、ジグザグ状に折畳んだ折畳み片を
截頭円錐形に展開したフイルタエレメントの改良
に関する。[Detailed Description of the Invention] <<Industrial Application Field>> This invention relates to an improvement of a filter element in which a folded piece folded in a zigzag shape is expanded into a truncated cone shape.

《従来の技術》この種のフイルタエレメントでは、その内・外
周に対する枠部の取付作業を簡易化するために、
フイルタエレメントを成形用金型内に装填し、射
出成形などにより枠部を一体に成形している。<Prior art> In this type of filter element, in order to simplify the work of attaching the frame to the inner and outer peripheries,
The filter element is loaded into a mold, and the frame is integrally molded by injection molding or the like.

《考案が解決しようとする問題点》しかしながらこの構造のフイルタエレメントで
は、第４図に示すように、円錐の傾き角θに応じ
て、折畳み片１の端部が垂直軸に対して傾く。こ
れに対して枠部には折畳み片１の端部を完全にシ
ールし、かつ周縁に突設されたフランジ部２ａを
垂直軸に対して水平に位置させる必要があるの
で、折畳み片１の幅と端部の傾き角θに応じた幅
T₂分の支持幅を必要とする。<<Problems to be Solved by the Invention>> However, in the filter element having this structure, as shown in FIG. 4, the end of the folded piece 1 is inclined with respect to the vertical axis depending on the inclination angle θ of the cone. On the other hand, since it is necessary to completely seal the end of the folding piece 1 in the frame and positioning the flange part 2a protruding from the periphery horizontally with respect to the vertical axis, the width of the folding piece 1 must be and the width according to the end tilt angle θ
Requires support width of T ₂ minutes.

このため、成形用の樹脂材料を余分に必要とす
るほか、実効濾過面積も少いものとなる。 Therefore, an extra resin material for molding is required, and the effective filtration area is also small.

この考案は以上の問題点に鑑みなされたもので
あつて、フイルタエレメントに一体化される枠部
の支持幅を最小なものとし、これによつて成形材
料の節減と、フイルタエレメントの実効濾過面積
の増大化を図ることを目的とする。 This idea was created in view of the above problems, and it minimizes the support width of the frame integrated into the filter element, thereby saving molding material and effective filtration area of the filter element. The purpose is to increase the number of people.

《問題点を解決するための手段》前記目的を達成するため、この考案では、ジグ
ザグ状に折畳んだ濾過部材の各折畳み片の一端を
内周とし、他端を外周として截頭円錐形に展開
し、その内外周に枠部を一体化したフイルタエレ
メントにおいて、前記各折畳み片の端部が円錐の
傾き角に等しい角度で裁断され、円錐の中心軸に
対し平行な切口となつていることを特徴とする。<Means for Solving the Problems> In order to achieve the above object, in this invention, each folded piece of the filtration member folded in a zigzag shape is formed into a truncated conical shape with one end as the inner circumference and the other end as the outer circumference. In a filter element that is unfolded and has integrated frame parts on its inner and outer peripheries, the ends of each of the folded pieces are cut at an angle equal to the inclination angle of the cone, and the cut is parallel to the central axis of the cone. It is characterized by

《実施例》以下、この考案の好適な一実施例を第１図乃至
第３図を用いて詳細に説明する。<<Embodiment>> Hereinafter, a preferred embodiment of this invention will be described in detail with reference to FIGS. 1 to 3.

第１図はこの考案に係るフイルタエレメントの
半切欠き平面図、第２図は第１図の−線断面
図である。 FIG. 1 is a half-cutaway plan view of a filter element according to this invention, and FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1.

図において、１０はフイルタエレメントであ
り、このフイルタエレメント１０は濾過部材をジ
グザグ状に折畳み、その折畳みによる各折畳み片
１２の一端切口を内周とし、他端切口を外周とし
て所定の傾きで截頭円錐形に展開したものであ
る。各折畳み片１２の内周側には内側枠部１４
が、外周側切口には外側枠部１６が型内成形など
によつて一体に形成され、各折畳み片１２の両端
部の切口面を包囲し、その形状に保つべく、保形
性を付与している。 In the figure, 10 is a filter element, and this filter element 10 is made by folding a filter member into a zigzag shape, and truncating each folded piece 12 resulting from the folding at a predetermined inclination, with the cut at one end serving as the inner periphery and the cut at the other end serving as the outer periphery. It is expanded into a conical shape. An inner frame portion 14 is provided on the inner peripheral side of each folding piece 12.
However, an outer frame portion 16 is integrally formed on the outer circumferential cut end by in-mold molding, etc., and surrounds the cut surfaces of both ends of each folding piece 12, giving shape retention properties to maintain the shape. ing.

そして、第３図に示すように、各折畳み片１２
の外周側端部１２ａおよび内周側端部１２ｂは、
円錐の傾き角θに等しい角度で予め裁断されてお
り、円錐の中心軸ｌに対し平行な切口となつてい
る。 As shown in FIG. 3, each folding piece 12
The outer peripheral end 12a and the inner peripheral end 12b of
It is cut in advance at an angle equal to the inclination angle θ of the cone, and the cut is parallel to the central axis l of the cone.

従つて、各端部１２ａ，１２ｂを支持する枠部
１４，１６の高さは、各折畳み片１２の幅Ｈに対
し傾き角θ分の高さを加えた値となるが、その支
持幅T₁は、各端部１２ａ，１２ｂの切口面を最
低限覆うような形状であればよいため、従来の第
４図に示すものに比べて小さく設定できることに
なるのである。 Therefore, the height of the frame portions 14 and 16 that support each end portion 12a and 12b is the sum of the width H of each folding piece 12 and the height corresponding to the inclination angle θ, but the support width T ₁ can be set to be smaller than the conventional one shown in FIG. 4, since it is sufficient to have a shape that at least covers the cut surfaces of each end 12a, 12b.

なお、図中符号１４ａ，１６ｂは各枠部１４，
１６に突出形成された支持フランジ部であり、こ
の支持フランジ部１４ａ，１６ａをフイルタケー
ス等に挾み付けることにより、フイルタエレメン
ト１０の内・外周を気密にシールした状態でケー
スに固定できるようになつている。 In addition, the symbols 14a and 16b in the figure indicate the respective frame portions 14,
The support flange portions 14a and 16a are protrudingly formed on the filter element 16, and by sandwiching the support flange portions 14a and 16a to a filter case etc., the filter element 10 can be fixed to the case with the inner and outer peripheries airtightly sealed. It's summery.

《考案の効果》以上実施例で説明したように、この考案によれ
ば、フイルタエレメントの内・外周に一体化され
る枠部の各折畳み片に対する支持幅を小さくで
き、これにより、枠部を構成する樹脂成形素材の
節減を図ることでき、軽量化が達成され、しかも
支持幅が少くなる分フイルタエレメントの実効濾
過面積の増大を図ることができる。<<Effects of the invention>> As explained above in the embodiments, according to this invention, the support width for each folding piece of the frame integrated with the inner and outer peripheries of the filter element can be reduced, thereby making it possible to reduce the width of the frame. The constituting resin molding material can be saved, the weight can be reduced, and the effective filtration area of the filter element can be increased due to the reduced support width.

[Brief explanation of the drawing]

第１図はこの考案に係るフイルタエレメントの
半切欠平面図、第２図は第１図の−線断面
図、第３図は要部断面図、第４図は従来の枠部を
一体化したフイルタエレメントの端部を示す部分
断面図である。１０……フイルタエレメント、１２……折畳み
片、１２ａ，１２ｂ……端部、１４……内側枠
部、１６……外側枠部、θ……傾き角、ｌ……中
心軸。 Fig. 1 is a half-cut plan view of the filter element according to this invention, Fig. 2 is a cross-sectional view taken along the line - - of Fig. 1, Fig. 3 is a sectional view of the main part, and Fig. 4 is a view of the filter element integrated with the conventional frame. FIG. 3 is a partial cross-sectional view showing the end of the filter element. DESCRIPTION OF SYMBOLS 10... Filter element, 12... Folding piece, 12a, 12b... End part, 14... Inner frame part, 16... Outer frame part, θ... Inclination angle, l... Central axis.

Claims

[Scope of utility model registration request]

In a filter element in which each folded piece of a filtration member folded in a zigzag shape is expanded into a truncated conical shape with one end as an inner circumference and the other end as an outer circumference, and a frame portion is integrated on the inner and outer circumferences, each of the folded pieces A filter element characterized in that the end portion of the filter element is cut at an angle equal to the inclination angle of the cone, and the cut is parallel to the central axis of the cone.