JPH07114894B2 - Filter for liquid purification - Google Patents
Filter for liquid purificationInfo
- Publication number
- JPH07114894B2 JPH07114894B2 JP62116055A JP11605587A JPH07114894B2 JP H07114894 B2 JPH07114894 B2 JP H07114894B2 JP 62116055 A JP62116055 A JP 62116055A JP 11605587 A JP11605587 A JP 11605587A JP H07114894 B2 JPH07114894 B2 JP H07114894B2
- Authority
- JP
- Japan
- Prior art keywords
- case
- filter
- flange
- fin
- annular
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 title claims description 8
- 238000000746 purification Methods 0.000 title claims description 4
- 238000004804 winding Methods 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 238000000638 solvent extraction Methods 0.000 claims 1
- 239000011800 void material Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 239000000446 fuel Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000001788 irregular Effects 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
- B01D27/005—Making filter elements not provided for elsewhere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
- B01D27/04—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
- B01D27/06—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper with corrugated, folded or wound material
- B01D27/07—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper with corrugated, folded or wound material having a coaxial stream through the filtering element
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、２つのケース部分から成るプラスチツク製ケ
ースが、その内部に巻きフイルタ素子を収容し、両ケー
ス部分がその周縁で内外にはまり合つて互いに漏れなく
結合され、両ケース部分のうち少なくとも一方が巻きフ
イルタ素子の外周に漏れなく結合されて、浄化すべき液
体用の流入接続管片に連通するフイルタの汚れ側と、こ
の液体の流出接続管片に連通するフイルタの清浄側とを
分離している。液体の浄化フイルタに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a plastic case consisting of two case parts, in which a winding filter element is housed, and both case parts fit inside and outside at their peripheral edges. Of the case and at least one of the case parts is connected to the outer periphery of the winding filter element without leakage, and the dirty side of the filter communicating with the inflow connecting pipe for liquid to be purified and the outflow of this liquid. The clean side of the filter communicating with the connecting pipe piece is separated. Liquid purification filter.
このようなフイルタはドイツ連邦共和国特許出願公開第
3425347号明細書から公知で、コツプ状ケース鉢と付属
のケース蓋とから成るプラスチツク製ケースに巻きフイ
ルタ素子が設けられている。両方のケース部分はその内
外に係合する周縁を異形断面にされて、Ｚ状断面の環状
間隙が生じ、これが蓋素子の外周へ半径方向に導かれ
て、接着剤を満たされている。こうしてフイルタ素子を
環状に包囲する単一の接着個所が形成されて、ケース部
分を互いに結合し、ケース内の汚れ側と清浄側とを互い
に分離している。さて燃料フイルタの多量生産では、両
部分の組合わせ後常温硬化する流動性の２成分接着剤が
この接着個所のために必要なことが欠点である。フイル
タのこの構造はその構成素子の取扱いを複雑にする。更
にケースポケツトにおける２成分接着剤の計量が不精確
であると、両ケース部分の組合わせの際多すぎる接着剤
が内方へ押出され、その際角形に延びる通路を狭くし
て、その流通が悪くなる可能性がある。このような公知
の巻き素子は、その外周にしばしば高温溶融接着剤から
成る縦継ぎ目を持つている。この縦継ぎ目と環状に包囲
する接着個所との交差個所において２つの異なる種類の
接着剤が突き合わされ、それにより不利な使用条件では
密封の問題を生ずることがある。なおこのような巻き素
子は一般に厳密に円形でなく、更に比較的軟らかいの
で、組立ての際特に慎重な取扱いを必要とする。Such a filter is disclosed in the German Federal Patent Application Publication No. 1
As is known from the specification 3425347, a winding filter element is provided in a plastic case consisting of a cup-shaped case pot and an attached case lid. Both case parts are profiled on their inner and outer engaging peripheral edges to create an annular gap of Z-shaped cross section, which is guided radially to the outer circumference of the lid element and filled with adhesive. In this way, a single adhesive point is formed which surrounds the filter element in an annular shape, joins the case parts together and separates the dirty side and the clean side in the case from each other. In the mass production of fuel filters, a drawback is that a fluid two-component adhesive, which cures at room temperature after combination of both parts, is required for this bonding point. This structure of the filter complicates the handling of its components. Furthermore, if the weighing of the two-component adhesive in the case pocket is inaccurate, too much adhesive will be extruded inward when the two case parts are combined, and the passage extending in a rectangular shape will be narrowed, and its distribution will be impaired. It can get worse. Such known winding elements have a longitudinal seam, often made of hot-melt adhesive, on their outer circumference. Two different types of adhesive are butted at the intersection of this longitudinal seam and the annularly enclosing adhesive, which can lead to sealing problems in adverse service conditions. It should be noted that such wound elements are generally not strictly circular and are relatively soft, requiring particularly careful handling during assembly.
更にドイツ連邦共和国特許出願公告第2244594号明細書
から多量生産に適した使い捨てフイルタが公知で、その
プラスチツク製２分割ケースは円板状フイルタ素子を収
容している。その漏斗状ケース部分は内側に環状ひれを
持ち、このひれが円板状フイルタ素子の周縁に超音波溶
接部により固定的に漏れなく溶着されている。このフイ
ルタの欠点は、この構造が巻きフイルタ素子の挿入に適
していないことである。Further, from DE-A-2244594, a disposable filter suitable for mass production is known, the plastic two-part case housing a disc-shaped filter element. The funnel-shaped case portion has an annular fin inside, and the fin is fixedly welded to the peripheral edge of the disc-shaped filter element by ultrasonic welding without leaks. The disadvantage of this filter is that this structure is not suitable for the insertion of wound filter elements.
本発明の課題は、巻きフイルタ素子を使用して多量生産
に適した液体浄化用フイルタを提供することである。An object of the present invention is to provide a liquid purification filter suitable for mass production using a wound filter element.
この課題を解決するため本発明によれば、可溶プラスチ
ツクから成る形状の安定な環状フランジが、巻きフイル
タ素子の外周に一体に形成されて、両ケース部分の周縁
により形成されかつケースの内部へ向かつて開く環状溝
状の空所へ入り込み、環状フランジの一方の環状面へ向
かつて突出する環状の直立ひれが一方のケース部分に形
成され、この直立ひれの先端が、超音波溶接部により環
状フランジに固定的に溶接結合されると共に、フイルタ
の汚れ側と清浄側とを分離している。According to the present invention to solve this problem, a stable annular flange having a shape made of a soluble plastic is integrally formed on the outer periphery of the winding filter element, and is formed by the peripheral edges of both case parts and is provided inside the case. An annular upstanding fin that protrudes toward one annular surface of the annular flange and enters into the once opened annular groove-shaped space is formed in one case part, and the tip of this upstanding fin is formed into an annular shape by ultrasonic welding. It is fixedly welded to the flange and separates the dirty side and the clean side of the filter.
本発明によるフイルタは、簡単に構成される安価な巻き
フイルタ素子入り使い捨てフイルタが得られるという利
点を持つている。この構成により、比較的撓み易い巻き
フイルタ素子でも、その性質を保ちながら汚れ側と清浄
側との間の漏れなし密封が得られて、使用中化学的及び
物理的な要求に適合する。更に変形に対する巻きフイル
タ素子の安定性が高められ、それにより組立ての際その
取扱いが容易である。２つの異なる種類の接着剤の出合
いも回避されるので、密封の問題が少なくなる。更に構
造が自動化された多量生産に適している。浄化すべき燃
料による接着剤の膨潤とそれに伴う密封個所の内部応
力、及び接着結合の剥離とそれにより生ずる漏れ個所が
充分に防止される。The filter according to the invention has the advantage that a disposable filter with a simple and inexpensive winding filter element can be obtained. This configuration provides a leak-free seal between the dirty side and the clean side while retaining its properties, even for relatively flexible wound filter elements, to meet in-use chemical and physical requirements. Furthermore, the stability of the wound filter element against deformation is increased, which makes it easier to handle during assembly. Encountering of two different types of adhesives is also avoided, thus reducing sealing problems. Furthermore, it is suitable for mass production with an automated structure. Swelling of the adhesive due to the fuel to be cleaned and the internal stresses of the sealing points and the debonding of the adhesive bond and the resulting leakage points are sufficiently prevented.
特許請求の範囲の従属項にあげた手段により、特許請求
の範囲第１項に示したフイルタの有利な展開と改善が可
能である。特許請求の範囲第２項及び第３項による構成
では、ケース部分用の溶接個所とケース部分への巻きフ
イルタ素子用の溶接個所とを別々に使用することによ
り、ケース部分内へ溶接される巻きフイルタ素子の密封
検査を行なうことが可能になる。更に特許請求の範囲第
４項の構成により、両方の超音波溶接を単一の工程で行
なうことができる。それ以外の有利な構成は、特許請求
の範囲の残りの従属項、図面及びその説明から明らかに
なる。Advantageous developments and improvements of the filter according to claim 1 are possible by means of the measures listed in the subordinate claims. In the structure according to claims 2 and 3, by using the welding portion for the case portion and the welding portion for the winding filter element separately, the winding portion is welded into the case portion. It becomes possible to perform a seal inspection of the filter element. Further, according to the constitution of claim 4, both ultrasonic welding can be performed in a single step. Other advantageous configurations will be apparent from the remaining dependent claims, the drawings and the description thereof.
本発明の２つの実施例が図面に示されており、以下これ
について説明する。Two embodiments of the invention are shown in the drawings and are explained below.
第１図は燃料フイルタ10を示し、そのケース11はコツプ
状ケース鉢12と付属のケース蓋13から成る。ケース11の
両方の部分はプラスチツクから成る。漏斗状に形成され
たケース蓋13には、流入用接続管片14が同軸的に設けら
れている。コツプ状ケース鉢12の底15には、内側に半径
方向ひれ16が設けられ、流入接続管片14に対して同軸的
に流出用接続管片17が設けられている。ケース11の内部
において流入用及び流出用の両接続管片14及び17の間
に、燃料を軸線方向に通される巻きフイルタ素子18が設
けられている。この巻きフイルタ素子18では、Ｖ状断面
のフイルタ紙帯片が、密封帯片を付加して渦巻き状に中
心管19の周りに巻付けられて、反対側端面へ向かつて開
く２つの渦巻き状空間を形成している。巻きフイルタ素
子18は一方ではひれ16に支えられ、他方では中心管19を
閉じるキヤツプ21を介してケース蓋13に支えられてい
る。FIG. 1 shows a fuel filter 10 whose case 11 comprises a cup-shaped case pot 12 and an attached case lid 13. Both parts of the case 11 consist of plastic. The case lid 13 formed in a funnel shape is coaxially provided with an inflow connecting pipe piece 14. A radial fin 16 is provided inside the bottom 15 of the cup-shaped case pot 12, and an outflow connection pipe piece 17 is provided coaxially with the inflow connection pipe piece 14. Inside the case 11, a winding filter element 18 through which fuel is passed in the axial direction is provided between both inflow and outflow connection pipe pieces 14 and 17. In this winding filter element 18, a filter paper strip having a V-shaped cross section is spirally wound around the central tube 19 with the addition of a sealing strip, and two spiral spaces open toward the opposite end face. Is formed. The winding filter element 18 is supported on the one hand by the fin 16 and on the other hand by the case lid 13 via a cap 21 closing the central tube 19.
ケース鉢12はその底15から始まる第１の円筒区域22を持
ち、この円筒区域は半径方向に延びる段部23を介して、
広げられた第２の円筒区域24へ移行している。この第２
の円筒区域24の内側には傾斜肩部25が設けられ、この上
にケース蓋13の対応する対向肩部26が載つている。この
ためケース鉢12へ挿入されるケース蓋13がその外周縁を
異形断面にされ、第２の円筒区域24が対応するその内周
縁を異形断面にされている。両方のケース部分12及び13
は、その肩部25,26において超音波溶接部27により漏れ
なく固定的に互いに結合されているので、ケース11の内
部は、第２図に詳細に示すように、外部に対して漏れな
く密封されている。The bowl 12 has a first cylindrical section 22 starting from its bottom 15 which, via a radially extending step 23,
It has transitioned to an expanded second cylindrical section 24. This second
On the inside of the cylindrical section 24 there is an inclined shoulder 25, on which the corresponding counter shoulder 26 of the case lid 13 rests. Therefore, the case lid 13 to be inserted into the case bowl 12 has an irregular cross section at its outer peripheral edge and an irregular cross section at its inner peripheral edge corresponding to the second cylindrical section 24. Both case parts 12 and 13
Since the shoulders 25 and 26 are fixedly connected to each other by the ultrasonic weld 27 without leakage, the inside of the case 11 is tightly sealed to the outside as shown in detail in FIG. Has been done.
第２の円筒区域24の範囲においてケース蓋13の端面28と
対向する半径方向段部23との間に、ケース11の内部へ向
かつて開く環状溝状の空所29が形成されている。段部23
から始まつて環状に取巻きかつ第１の円筒区域22の直径
上に設けられるのがよい直立ひれ31が、この空所29へ入
り込んでいる。このひれの先端の直径が第１の円筒区域
22の外径に等しいか又はこれより大きいと、有利であ
る。In the region of the second cylindrical section 24, between the end surface 28 of the case lid 13 and the facing radial step 23, an annular groove-shaped cavity 29 is formed which opens towards the inside of the case 11 once. Step 23
An upstanding fin 31 which encircles the ring and which is preferably annular and surrounds the diameter of the first cylindrical section 22 enters into this cavity 29. The diameter of the tip of this fin is the first cylindrical area
It is advantageous if it is equal to or larger than the outer diameter of 22.
第２図に詳細に示すように、巻きフイルタ素子18に設け
られる環状フランジ32が空所29へ入り込んでいる。この
フランジ32は純粋なポリアミドから成り、巻きフイルタ
素子の外周に一体に射出成形され、更に円環状に形成さ
れて、フイルタ縦軸線に対してなるべく直角に延びる平
らなストツパ面33を形成している。一体に射出成形され
たフランジ32は、それと巻きフイルタ素子18との確実に
漏れなしの結合部を形成する。とりわけこのフランジ32
は、それが大体形状安定性を持ち、従つて撓み易い巻き
フイルタ素子にも大きい形状安定性を与えるように、そ
の厚さ及び幅を選ばれている。この目的のためフイルタ
の縦軸線に対して直角に延びる面におけるフランジ32の
幅は、第１の円筒区域22の範囲におけるケース鉢12の肉
厚の約３倍の大きさに選ばれ、その厚さは約２倍であ
る。環状フランジ32はそのストツパ面33で環状ひれ31上
に載り、これと第２の超音波溶接部34により漏れなく固
定的に結合されている。端面28に対してまた第２の円筒
区域24に対して、フランジ32は僅かな遊隙を持つように
構成されている。環状フランジ32はその内部に空洞がな
く、外側に平らなストツパ面33を形成しているので、超
音波溶接の際巻きフイルタ素子18とコツプ状ケース鉢12
との間に申し分のない漏れなし結合部が生ずる。フラン
ジ32の厚さに対して約２倍の厚さの一体射出成形面35
は、両構成素子の安定で漏れなしの結合を保証し、巻き
フイルタ素子18の流通断面が殆ど有害な影響を受けな
い。As shown in detail in FIG. 2, an annular flange 32 provided on the winding filter element 18 enters the cavity 29. This flange 32 is made of pure polyamide and is injection-molded integrally with the outer circumference of the wound filter element and further formed into an annular shape to form a flat stopper surface 33 extending at a right angle to the longitudinal axis of the filter. . The integrally injection-molded flange 32 forms a positive, leak-proof connection between it and the winding filter element 18. Above all this flange 32
Is selected for its thickness and width so that it has a general shape stability and thus also a great shape stability for flexible winding filter elements. For this purpose, the width of the flange 32 in the plane extending at right angles to the longitudinal axis of the filter is chosen to be approximately three times the wall thickness of the case bowl 12 in the area of the first cylindrical section 22 and its thickness. That is about double. The annular flange 32 rests on its stop surface 33 on the annular fin 31 and is fixedly connected thereto by a second ultrasonic weld 34 without leakage. For the end face 28 and for the second cylindrical section 24, the flange 32 is designed with a slight clearance. Since the annular flange 32 does not have a cavity inside and forms a flat stopper surface 33 on the outside, during the ultrasonic welding, the winding filter element 18 and the cup-shaped case pot 12
A perfect, leak-free joint is formed between and. An integral injection molding surface 35 that is about twice as thick as the flange 32
Guarantees a stable and leak-free coupling of both components, and the flow cross section of the wound filter element 18 is hardly detrimentally affected.
燃料フイルタ10の組立ての際、コツプ状ケース鉢12へ巻
きフイルタ素子18が、それと一体に形成されたフランジ
32と共に、そのストツパ面33がひれ31の先端に当るまで
挿入される。続いて超音波溶接部34により巻きフイルタ
素子18とケース鉢12との間の密封が行なわれる。必要な
場合には、続く気泡試験により超音波溶接部34の密封性
を検査することができる。それからケース蓋13が第２の
円筒区域24へ挿入され、第２の工程で両方の肩部25,26
が超音波溶接部27により漏れなく固定的に互いに結合さ
れる。When the fuel filter 10 is assembled, the filter element 18 wound around the cup-shaped case pot 12 is integrally formed with the flange.
Along with 32, the stopper surface 33 is inserted until it hits the tip of the fin 31. Then, the ultrasonic welding portion 34 seals between the winding filter element 18 and the case pot 12. If necessary, a subsequent bubble test can be used to check the tightness of the ultrasonic weld 34. The case lid 13 is then inserted into the second cylindrical section 24, and in the second step both shoulders 25, 26
Are fixedly connected to each other by the ultrasonic weld 27 without leakage.
燃料フイルタ10は公知のように使用される。浄化すべき
ガソリン又はデイーゼル燃料は、流入接続管片14を経て
フイルタの汚れ側へ流れ、巻きフイルタ素子18を軸線方
向に通つて浄化されて、清浄側から流出接続管片17へ達
する。その際超音波溶接部27は汚れ側を外部に対して密
封し、第２の超音波溶接部34はフイルタ10内の汚れ側を
清浄側から分離する。The fuel filter 10 is used in a known manner. The gasoline or diesel fuel to be purified flows to the dirty side of the filter via the inflow connecting piece 14, passes through the winding filter element 18 in the axial direction and is purified, and reaches the outflow connecting piece 17 from the clean side. The ultrasonic weld 27 then seals the dirty side to the outside and the second ultrasonic weld 34 separates the dirty side in the filter 10 from the clean side.
第３図は、第１図による燃料フイルタとは次の点で異な
る燃料フイルタ40の第２の実施例を示している。FIG. 3 shows a second embodiment of the fuel filter 40 which differs from the fuel filter according to FIG. 1 in the following points.
第２のフイルタ40では、空所29へ入り込むひれが半径方
向段部23にないので、段部23は平らな支持面41を形成
し、この上にフランジ32の下部ストツパ面33が載つてい
る。今やフイルタ40のケース蓋42の端面28に、空所29へ
入り込むひれ43が設けられている。ひれ43はフランジ32
の上部44上に支えられ、そこにケース11の内部の汚れ側
を清浄側から分離する超音波溶接部45を形成している。In the second filter 40, since there is no fin in the radial step 23 into the cavity 29, the step 23 forms a flat support surface 41 on which the lower stop surface 33 of the flange 32 rests. . A fin 43 is now provided on the end surface 28 of the case lid 42 of the filter 40 to enter the cavity 29. Fin 43 is flange 32
An ultrasonic weld 45 is formed on the upper part 44 of the case 11 and separates the dirty side from the clean side inside the case 11.
第２のフイルタ40は組立てが簡単であるという利点を持
つている。巻きフイルタ素子18はコツプ状ケース鉢12へ
挿入され、その際ひとりでに中心を合わされる。フラン
ジ32の平らなストツパ面33は、平らな環状支持面41に充
分接する。続いてケース蓋42がケース鉢へ導入され、単
一の工程で両方の超音波溶接部45及び27が同時に作られ
る。この場合ひれ43からフランジ32へ及ぼされる力は、
フランジ32から段部23へ伝達されるので、有害な力が巻
きフイルタ素子18へ導入されることはない。The second filter 40 has the advantage that it is easy to assemble. The winding filter element 18 is inserted into the cup-shaped case pot 12, in which case it is centered by itself. The flat stop surface 33 of the flange 32 makes good contact with the flat annular support surface 41. The case lid 42 is then introduced into the case pot and both ultrasonic welds 45 and 27 are made simultaneously in a single step. In this case, the force applied from the fin 43 to the flange 32 is
Since it is transmitted from the flange 32 to the step 23, no harmful force is introduced into the winding filter element 18.
本発明の思想から外れることなく、図示したフイルタの
変更が可能なことはもちろんである。本発明による構成
様式は、図示した導管フイルタ構成様式の代りに流入及
び流出用の両接続管片が同じケース部分に設けられるフ
イルタにも適用可能である。フイルタの縦軸線に対して
直角に延びる第１図ないし第３図のストツパ面33に傾斜
面取り部を形成することも可能である。その際申し分の
ない超音波溶接に適した平らなストツパ面を可能にする
形状の安定な素子としてフランジ32を構成することが、
とりわけ重要でる。一体に射出成形されるフランジ用の
純粋なポリアミドの代りに、他の適当な可溶性プラスチ
ツクを選ぶことができる。Of course, the illustrated filters can be modified without departing from the spirit of the invention. The design according to the invention is also applicable to filters in which, instead of the illustrated conduit filter design, both inflow and outflow connecting tubes are provided in the same case part. It is also possible to form an inclined chamfer on the stopper surface 33 of FIGS. 1 to 3 which extends at right angles to the longitudinal axis of the filter. In that case, it is possible to configure the flange 32 as a stable element of a shape that enables a flat stopper surface suitable for satisfactory ultrasonic welding.
Especially important. Instead of pure polyamide for the integrally injection-molded flange, other suitable soluble plastics can be chosen.
第１図はフイルタの第１の実施例の縦断面図、第２図は
その一部の拡大断面図、第３図はフイルタの第２の実施
例の一部の縦断面図である。 10,40……燃料フイルタ、11……ケース、12,13,42……
ケース部分、18……巻きフイルタ素子、29……空所、3
1,43……ひれ、32……フランジ、34、45……超音波溶接
部。1 is a longitudinal sectional view of a first embodiment of the filter, FIG. 2 is an enlarged sectional view of a part thereof, and FIG. 3 is a longitudinal sectional view of a second embodiment of the filter. 10,40 …… Fuel filter, 11 …… Case, 12,13,42 ……
Case part, 18 ... Winding filter element, 29 ... Empty space, 3
1,43 …… Fin, 32 …… Flange, 34,45 …… Ultrasonic weld.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭56−144713（ＪＰ，Ａ) 実開 昭49−104267（ＪＰ，Ｕ) 実開 昭50−115672（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-56-144713 (JP, A) Actually opened 49-104267 (JP, U) Actually opened 50-115672 (JP, U)
Claims (9)
るプラスチツク製ケース（11）が、その内部に巻きフイ
ルタ素子（18）を収容し、両ケース部分（12,13又は4
2）がその周縁で内外にはまり合つて互いに漏れなく結
合され、両ケース部分のうち少なくとも一方が巻きフイ
ルタ素子（18）の外周に漏れなく結合されて、浄化すべ
き液体用の流入接続管片（14）に連通するフイルタの汚
れ側と、この液体の流出接続管片（17）に連通するフイ
ルタの清浄側とを分離しているものにおいて、可溶プラ
スチツクから成る形状の安定な環状フランジ（32）が、
巻きフイルタ素子（18）の外周に一体に形成されて、両
ケース部分（12,13又は42）の周縁により形成されかつ
ケース（11）の内部へ向かつて開く環状溝状の空所（2
9）へ入り込み、環状フランジ（32）の一方の環状面へ
向かつて突出する環状の直立ひれ（31,43）が一方のケ
ース部分（12又は42）に形成され、この直立ひれ（31,4
3）の先端が、超音波溶接部（34,45）により環状フラン
ジ（32）に固定的に溶接結合されると共に、フイルタの
汚れ側と清浄側とを分離していることを特徴とする、液
体の浄化用フイルタ。1. A plastic case (11) consisting of two case parts (12, 13 or 42) has a winding filter element (18) housed therein, and both case parts (12, 13 or 4).
2) fits inwardly and outwardly at its periphery and is tightly coupled to each other, and at least one of both case portions is tightly coupled to the outer periphery of the winding filter element (18), so that an inflow connecting pipe piece for liquid to be purified is formed. In the case where the dirty side of the filter communicating with (14) and the clean side of the filter communicating with this liquid outflow connection pipe (17) are separated, a stable annular flange of a soluble plastic ( 32)
An annular groove-shaped space (2) formed integrally with the outer periphery of the winding filter element (18) and formed by the peripheral edges of both case parts (12, 13 or 42) and opening toward the inside of the case (11).
An upright fin (31, 43) of an annular shape that enters the annular flange (32) and projects toward one annular surface of the annular flange (32) is formed in the one case portion (12 or 42).
The tip of 3) is fixedly welded to the annular flange (32) by the ultrasonic welds (34, 45) and separates the dirty side and the clean side of the filter. Filter for purification of liquid.
さる肩部（25,26）の所で超音波溶接部（27）により漏
れなく固定的に互いに結合されていることを特徴とす
る、特許請求の範囲第１項に記載のフイルタ。2. The case parts (12, 13) are fixedly connected to each other without leakage by means of ultrasonic welds (27) at the shoulders (25, 26) facing each other. The filter according to claim 1.
ツプ状ケース鉢（12）の張出し段部（23）に設けられて
いることを特徴とする、特許請求の範囲第１項に記載の
フイルタ。3. The fin according to claim 1, wherein the fin (31) is provided on an overhanging step (23) of the cup-shaped case pot (12) as one case portion. Filter.
ケース部分としてのケース蓋（42）の端面（28）に設け
られていることを特徴とする、特許請求の範囲第１項に
記載のフイルタ。4. A fin (43) is provided on an end surface (28) of a case lid (42) as the other case portion for partitioning the void (29), and the fin (43) is provided on the end surface (28). The filter according to item 1.
方向に延びるフランジ（32）の幅がケース部分としての
コツプ状ケース鉢（22）の肉厚より大きく、肉厚の1.5
ないし３倍であることを特徴とする、特許請求の範囲第
１項に記載のフイルタ。5. The width of the flange (32) extending in the radial direction with respect to the longitudinal axis of the filter (10, 40) is larger than the wall thickness of the cup-shaped case pot (22) as the case portion, and has a wall thickness of 1.5.
A filter according to claim 1, characterized in that
ち、平らなストツパ面（33）を持つていることを特徴と
する、特許請求の範囲第５項に記載のフイルタ。6. A filter according to claim 5, characterized in that the flange (32) has a substantially rectangular cross section and has a flat stop surface (33).
プ状ケース鉢（12）の第１の円筒区域（22）の範囲にお
ける外径に等しいか又はこれより大きい直径上にあるこ
とを特徴とする、特許請求の範囲第１項又は第３項又は
第４項に記載のフイルタ。7. The fins (31, 43) are on a diameter equal to or larger than the outer diameter in the range of the first cylindrical section (22) of the cup-shaped case bowl (12) as the case part. The filter according to claim 1, 3 or 4, which is characterized.
を特徴とする、特許請求の範囲第１項又は第５項又は第
６項に記載のフイルタ。8. A filter according to claim 1, 5 or 6, characterized in that the flange (32) is made of polyamide.
に形成され、１つの工程で作られていることを特徴とす
る、特許請求の範囲第４項に記載のフイルタ。9. The ultrasonic welding parts (27, 45) are attached to the case lid (42).
A filter according to claim 4, characterized in that it is formed in one step and made in one step.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3617420A DE3617420C2 (en) | 1986-05-23 | 1986-05-23 | Filters for cleaning liquids |
| DE3617420.3 | 1986-05-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62279814A JPS62279814A (en) | 1987-12-04 |
| JPH07114894B2 true JPH07114894B2 (en) | 1995-12-13 |
Family
ID=6301502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62116055A Expired - Lifetime JPH07114894B2 (en) | 1986-05-23 | 1987-05-14 | Filter for liquid purification |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH07114894B2 (en) |
| DE (1) | DE3617420C2 (en) |
| FR (1) | FR2598936B1 (en) |
| IT (1) | IT1205658B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3641348A1 (en) * | 1986-12-03 | 1988-06-16 | Bosch Gmbh Robert | LIQUID FILTER, ESPECIALLY FOR FUELS |
| DE3837423A1 (en) * | 1988-11-04 | 1990-05-10 | Bosch Gmbh Robert | LIQUID FILTER |
| DE3842017A1 (en) * | 1988-12-14 | 1990-06-21 | Hermann Trabold | OIL FILTERS FOR COMBUSTION ENGINES |
| DE4127031A1 (en) * | 1991-08-16 | 1993-02-18 | Bosch Gmbh Robert | LIQUID FILTER |
| DE19925098A1 (en) * | 1999-06-01 | 2000-12-07 | Bosch Gmbh Robert | Disposable filter for fuel |
| EP1982754A3 (en) * | 2002-08-08 | 2008-12-03 | Mann+Hummel Gmbh | Filter system |
| DE20213512U1 (en) * | 2002-09-03 | 2004-01-15 | Hengst Gmbh & Co.Kg | Filter used as an oil filter or a fuel filter for a motor vehicle comprises a housing, a removable lid, and an exchangeable filter insert having an annular cross-section and secured against rotational movements about its central axis |
| JP2011163243A (en) * | 2010-02-11 | 2011-08-25 | Kyosan Denki Co Ltd | Fuel filter device |
| DE102011120453A1 (en) | 2011-12-07 | 2013-06-13 | Robert Bosch Gmbh | Filter cartridge for separating particles from fluid, has housing cover including external connection surface with sealing receiver and including annularly extended groove in which end section of filter element is received |
| DE202012003252U1 (en) | 2012-03-30 | 2012-04-25 | Sartorius Stedim Biotech Gmbh | Filter housing for replaceable filters |
| DE202013011841U1 (en) * | 2013-12-11 | 2015-03-18 | Mann + Hummel Gmbh | Filter system and filter element with coupling device and sealing device |
| JP6222026B2 (en) * | 2014-09-17 | 2017-11-01 | トヨタ紡織株式会社 | Air cleaner |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1576348C3 (en) * | 1967-05-09 | 1982-05-27 | Robert Bosch Gmbh, 7000 Stuttgart | Fuel filters for internal combustion engines |
| DE7047482U (en) * | 1970-12-23 | 1971-09-02 | Ferch & Nabben | THROUGH FILTER WITH TWO FILTER SURFACES |
| BE788211A (en) * | 1971-09-16 | 1973-02-28 | Pall Corp | DEVICE AVAILABLE FOR FILTERING GAS |
| DE2547857A1 (en) * | 1975-10-25 | 1977-05-05 | Bosch Gmbh Robert | Cartridge filter unit construction - using thermoplastic adhesive to seal element to casing and top cover to casing |
| DE7540329U (en) * | 1975-12-18 | 1976-04-15 | Roth, Heinz, 7060 Schorndorf | LINE FILTER, ESPECIALLY FOR FUEL |
| DE3425347A1 (en) * | 1984-07-10 | 1986-01-16 | Robert Bosch Gmbh, 7000 Stuttgart | FILTER TO CLEAN LIQUIDS |
-
1986
- 1986-05-23 DE DE3617420A patent/DE3617420C2/en not_active Expired - Fee Related
-
1987
- 1987-05-14 JP JP62116055A patent/JPH07114894B2/en not_active Expired - Lifetime
- 1987-05-21 IT IT20609/87A patent/IT1205658B/en active
- 1987-05-22 FR FR878707246A patent/FR2598936B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3617420A1 (en) | 1987-11-26 |
| FR2598936A1 (en) | 1987-11-27 |
| IT1205658B (en) | 1989-03-31 |
| IT8720609A0 (en) | 1987-05-21 |
| JPS62279814A (en) | 1987-12-04 |
| FR2598936B1 (en) | 1989-07-13 |
| DE3617420C2 (en) | 1994-09-22 |
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