DE19642641A1 - Plastic screw on top for filter housing - Google Patents

Plastic screw on top for filter housing

Info

Publication number
DE19642641A1
DE19642641A1 DE19642641A DE19642641A DE19642641A1 DE 19642641 A1 DE19642641 A1 DE 19642641A1 DE 19642641 A DE19642641 A DE 19642641A DE 19642641 A DE19642641 A DE 19642641A DE 19642641 A1 DE19642641 A1 DE 19642641A1
Authority
DE
Germany
Prior art keywords
filter insert
screw cap
ring
screw
extension
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.)
Granted
Application number
DE19642641A
Other languages
German (de)
Other versions
DE19642641C2 (en
Inventor
Thomas Brieden
Hans Jensen
Dietmar Sonntag
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.)
Mahle Filtersysteme GmbH
Original Assignee
Knecht Filterwerk GmbH
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 Knecht Filterwerk GmbH filed Critical Knecht Filterwerk GmbH
Priority to DE19642641A priority Critical patent/DE19642641C2/en
Publication of DE19642641A1 publication Critical patent/DE19642641A1/en
Application granted granted Critical
Publication of DE19642641C2 publication Critical patent/DE19642641C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/114—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/24—Tools used for the removal of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/301—Details of removable closures, lids, caps, filter heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/301—Details of removable closures, lids, caps, filter heads
    • B01D2201/305—Snap, latch or clip connecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4084—Snap or Seeger ring connecting means

Landscapes

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

Abstract

A bell-shaped plastic screw on top for a filter housing has a removable ring filter insert inside which is rotatably held in a snap fitting. One of the connecting parts has a ring flange and the other has an elastically resilient retaining hoop. A centralising device between the screw top (2) and the ring filter insert (9) provides a radially non-elastic mounting for the ring filter insert (9) facing the screw on lid. Pref. the centralising device comprises circular lugs (7) which are shaped to engage a receiving part in the front face of the filter insert or with a retaining fastener cap (8) attachable to the filter insert above the sliding seat of the filter insert formed in the radial inner space of the filter insert. An extension (5) is arranged on the outside of the screw top (2) for radial support of a stopper (6) together with a support (4) coaxial to, and spaced apart from, the extension (5) .

Description

Die Erfindung betrifft einen Kunststoff-Schraubdeckel nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a plastic screw cap the preamble of claim 1.

Ein solcher Schraubdeckel ist beispielsweise aus DE 43 44 588 A1 bekannt.Such a screw cap is, for example DE 43 44 588 A1 known.

Hiervon ausgehend beschäftigt sich die Erfindung mit dem Problem, die radial federnde Lagerung des Filtereinsatzes an dem Schraubdeckel zu versteifen. Ferner sollen die Schnapp­ verschlußmittel nicht fester Bestandteil des Ringfilterein­ satzes sein, damit diese bei einem Austausch des Ringfil­ tereinsatzes an dem Schraubdeckel insgesamt verbleiben kön­ nen. Dadurch sollen die bei einem Ringfilterwechsel anfal­ lenden Wegwerf- bzw. zu entsorgenden Materialmengen verrin­ gert werden. Gleichzeitig wird angestrebt, das austauschbare Ringfilterelement möglichst einfach und kostengünstig auszu­ bilden. Proceeding from this, the invention deals with the Problem, the radially resilient mounting of the filter insert stiffen the screw cap. Furthermore, the snap sealing means not an integral part of the ring filter be set so that when replacing the ring fil The insert can remain on the screw cap as a whole nen. This should result in a ring filter change reduce disposable or disposable material quantities be tied. At the same time, the aim is to make the interchangeable Ring filter element as simple and inexpensive to design form.  

Eine Lösung hierzu zeigt eine Ausführung nach dem kennzeich­ nenden Merkmal des Patentanspruchs 1 auf.A solution to this is shown by an embodiment according to the label ning feature of claim 1.

Eine zweckmäßige Ausgestaltung dieser Lösung ist Gegenstand des Anspruchs 2.A practical design of this solution is the subject of claim 2.

Eine vorteilhafte Weiterbildung enthält der Anspruch 3.Claim 3 contains an advantageous further development.

Ein Ausführungsbeispiel ist in der Zeichnung dargestellt.An embodiment is shown in the drawing.

Es zeigenShow it

Fig. 1 einen Ausschnitt aus einem Filtergehäuse mit ei­ nem aufgeschraubten Deckel im Längsschnitt, Fig. 1 shows a detail of a filter housing with egg nem screwed cap in longitudinal section;

Fig. 2 einen Schnitt durch den Deckel wie in Fig. 1 oh­ ne eingesetzte Teile, Fig. 2 shows a section through the lid shown in Fig. 1 oh ne used parts,

Fig. 3 eine Draufsicht auf den Deckel nach Fig. 2. Fig. 3 is a plan view of the cover of FIG. 2.

Auf ein Filtergehäuse 1 ist ein Schraubdeckel 2 aufge­ schraubt.On a filter housing 1 , a screw cap 2 is screwed up.

Zum Montieren und Demontieren des Schraubdeckels 1 besitzt dieser ein Ansatzstück 3 zum Ansetzen eines Werkzeuges. Das Ansatzstück 3 besteht dabei aus einem an den Boden des Schraubdeckels 2 angeformten Rohrstutzen 4 mit einem Sechs­ kantaußenprofil. Direkt im Zentrum des Schraubdeckels 2 ist an dessen Boden axial nach außen ein Ansatz 5 angeformt. In den Innenraum des Rohrstutzens 4 ist radial innen und außen formschlüssig ein Stopfen 6 eingeschoben. Dieser Stopfen 6 hat die Form eines Pilzes, wobei der Pilzkopf sich in einge­ schobenem Zustand des Stopfens auf dem Rohrstutzen 4 nach außen radial formschlüssig abschließend abstützt. Der Stop­ fen 6 ist derart in den Rohrstutzen 4 eingeschoben, daß kei­ ne Materialverspannungen in dem Rohrstutzen 4 auftreten. An­ dererseits ist der Sitz derart, daß der Stopfen 6 dauerhaft Halt in dem Rohrstutzen 4 besitzt. Hierfür kann beispiels­ weise eine Rastverbindung gewählt werden von der ein Rast­ element 11 im Inneren des Rohrstutzens 4 in Fig. 2 gezeigt ist. Der Stopfen 6 ist bevorzugt wie der Schraubdeckel 2 ebenfalls aus Kunststoff.To assemble and disassemble the screw cap 1 , this has an extension piece 3 for attaching a tool. The extension 3 consists of a molded on the bottom of the screw cap 2 pipe socket 4 with a six edge profile. Directly in the center of the screw cap 2 an extension 5 is formed axially on the bottom thereof. In the interior of the pipe socket 4 , a plug 6 is inserted radially inside and outside. This plug 6 has the shape of a mushroom, with the mushroom head is supported radially in schobenem inserted state of the plug on the pipe stub 4 to the outside form-fitting exhaustive. The stop fen 6 is inserted into the pipe socket 4 in such a way that no material stresses occur in the pipe socket 4 . On the other hand, the seat is such that the plug 6 has a permanent hold in the pipe socket 4 . For this purpose, for example, a locking connection can be selected from which a locking element 11 is shown in the interior of the pipe socket 4 in Fig. 2. The stopper 6 , like the screw cap 2, is preferably also made of plastic.

Zentral im Inneren des Schraubdeckels 2 ist ein Rundbolzen 7 angeformt, der zur Aufnahme und radial unelastischen Lage­ rung einer Verschlußkappe 8 an der Stirnseite eines Ringfil­ tereinsatzes 9 dient. Die Verschlußkappe 8 ist etwa spiel­ frei drehbar an dem Rundbolzen 7 gelagert. Axial fixiert ist die Verschlußkappe 8 über auf ihrem Außenumfang auf einen umlaufenden Ringsteg aufgeschnappte von dem Schraubdeckel 2 ausgehende Haltebügel 10 aus radial verformbarem Material. Innerhalb dieser Schnappverbindung ist die Verschlußkappe 8 gegenüber dem Schraubdeckel 2 drehbar. Auf einen zylindri­ schen Bereich der Verschlußkappe 8 ist radial gedichtet der Ringfiltereinsatz 9 aufschiebbar.A round bolt 7 is integrally formed in the center of the screw cap 2 , which serves to accommodate and radially inelastic position of a closure cap 8 on the end face of a ring insert 9 . The closure cap 8 is mounted on the round bolt 7 such that it can rotate freely. The closure cap 8 is axially fixed by means of retaining brackets 10 made of radially deformable material and snapped onto a circumferential ring web on its outer circumference and extending from the screw cap 2 . Within this snap connection, the closure cap 8 can be rotated with respect to the screw cap 2 . On a cylindri's area of the cap 8 , the ring filter insert 9 is radially sealed.

Durch den Stopfen 6 innerhalb des Rohrstutzens 4 werden Kräfte eines Montagewerkzeuges über einen größeren Bereich verteilt, so daß die Wanddicke des Rohrstutzens 4 insgesamt und insbesondere im Übergangsbereich zu dem Boden des Schraubdeckels äußerst gering sein kann.Forces of an assembly tool are distributed over a larger area by the plug 6 within the pipe socket 4 , so that the wall thickness of the pipe socket 4 as a whole and in particular in the transition region to the bottom of the screw cap can be extremely small.

Claims (4)

1. Kunststoff-Schraubdeckel in Glockenform für ein Filter­ gehäuse, bei dem im Inneren des Glockenbodens ein Ringfil­ tereinsatz von diesem trennbar und um dessen Schraubachse drehbar lagerbar ist, wobei die Drehbarkeit durch einen Schnappverschluß gegeben ist, bei dem das eine Verbindungs­ teil einen Ringsteg und das andere Verbindungsteil diesen Ringsteg axial fixierende radial federnde Haltebügel auf­ weist, dadurch gekennzeichnet, daß zwischen dem Schraubdeckel (2) und dem Ringfiltereinsatz (9) Zentriermittel für eine radial unelastische Lagerung des Ringfiltereinsatzes (9) gegenüber dem Schraubdeckel (2) vor­ gesehen sind.1. Plastic screw cap in bell shape for a filter housing, in which inside the bell bottom a Ringfil ter insert can be separated from it and rotatable about its screw axis, the rotatability is given by a snap lock, in which the one part of a ring bridge and the other connecting part of this ring web has axially fixing radially resilient retaining bracket, characterized in that centering means for a radially inelastic mounting of the ring filter insert ( 9 ) with respect to the screw cover ( 2 ) are seen between the screw cap ( 2 ) and the ring filter insert ( 9 ). 2. Kunststoff-Schraubdeckel nach Anspruch 1, dadurch gekennzeichnet, daß die Zentriermittel aus einem an das Innere des Glocken­ bodens des Schraubdeckels (2) angeformten Rundbolzen (7) und einer diesen formschlüssig aufnehmenden Ausnehmung in der angrenzenden Stirnseite des Filtereinsatzes (9) oder einem über einen Schiebesitz mit dem Filtereinsatz (9) verbindba­ ren Halteteil (8) bestehen. 2. Plastic screw cap according to claim 1, characterized in that the centering means from a to the inside of the bell bottom of the screw cap ( 2 ) molded round bolt ( 7 ) and a form-fitting recess in the adjacent end face of the filter insert ( 9 ) or one consist of a sliding seat with the filter insert ( 9 ) connectable holding part ( 8 ). 3. Kunststoff-Schraubdeckel nach Anspruch 2, dadurch gekennzeichnet, daß das Halteteil als eine Verschlußkappe (8) für den radia­ len Innenraum eines Ringfiltereinsatzes (9) ausgebildet ist.3. Plastic screw cap according to claim 2, characterized in that the holding part is designed as a closure cap ( 8 ) for the radia len interior of a ring filter insert ( 9 ). 4. Kunststoff-Schraubdeckel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dem Rundbolzen (7) an der Außenseite des Schraubdeckels (2) ein Ansatz (5) koaxial zugeordnet ist, der zur radialen Abstützung eines Stopfens (6) dient, der in einen den Ansatz (5) radial beabstandet koaxial umgebenden Rohrstutzen (4) als diesen versteifendes Mittel einführbar ist.4. Plastic screw cap according to one of the preceding claims, characterized in that the round bolt ( 7 ) on the outside of the screw cap ( 2 ) is assigned an extension ( 5 ) coaxially, which serves for the radial support of a stopper ( 6 ) which in a pipe socket ( 4 ) which surrounds the extension ( 5 ) at a radial spacing and can be introduced as a stiffening means.
DE19642641A 1995-11-27 1996-10-16 Plastic screw cap in bell shape for a filter housing Expired - Fee Related DE19642641C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19642641A DE19642641C2 (en) 1995-11-27 1996-10-16 Plastic screw cap in bell shape for a filter housing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19544087 1995-11-27
DE19642641A DE19642641C2 (en) 1995-11-27 1996-10-16 Plastic screw cap in bell shape for a filter housing

Publications (2)

Publication Number Publication Date
DE19642641A1 true DE19642641A1 (en) 1997-05-28
DE19642641C2 DE19642641C2 (en) 1998-03-19

Family

ID=7778476

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19642641A Expired - Fee Related DE19642641C2 (en) 1995-11-27 1996-10-16 Plastic screw cap in bell shape for a filter housing

Country Status (3)

Country Link
DE (1) DE19642641C2 (en)
FR (1) FR2741548A1 (en)
GB (1) GB2307422A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19737699A1 (en) * 1997-08-29 1999-03-04 Mann & Hummel Filter Filter module
DE19852587A1 (en) * 1998-08-11 2000-02-17 Mann & Hummel Filter Horizontal oil or fuel filter for vehicles has a drain that can be positioned in the lowest position
DE29915840U1 (en) * 1999-09-09 2001-01-25 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Openwork valve body filter
US6415759B2 (en) 2000-02-29 2002-07-09 Bombardier-Rotax Gmbh Four stroke engine having flexible arrangement
DE102008040319A1 (en) * 2008-07-10 2010-01-14 Deere & Company, Moline Filter arrangement for filtering a liquid or gaseous medium

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19706644A1 (en) * 1997-02-20 1998-08-27 Knecht Filterwerke Gmbh Plastic cover for a filter housing
US6663685B2 (en) 1997-12-15 2003-12-16 Domnick Hunter Limited Filter assembly
AU1675099A (en) 1997-12-15 1999-07-05 Domnick Hunter Limited Filter assembly
US6416563B1 (en) 1997-12-15 2002-07-09 Domnick Hunter Limited Filter assembly
US6391197B1 (en) 1997-12-15 2002-05-21 Domnick Hunter Limited Filter assembly
US6461397B1 (en) 1997-12-15 2002-10-08 Domnick Hunter Limited Filter assembly
AU1675299A (en) 1997-12-15 1999-07-05 Domnick Hunter Limited Filter assembly
FR2789729B1 (en) * 1999-02-12 2001-03-23 Moulage Ind De Perseigne Mip OIL FILTER HOUSING
FR2790513B1 (en) * 1999-03-02 2001-05-18 Filtrauto LIQUID FILTER HOUSING FOR AN ENGINE, AND FILTER COMPRISING SUCH A HOUSING
DE19917567A1 (en) * 1999-04-19 2000-11-02 Brueninghaus Hydromatik Gmbh Filter device with a detachable fiter housing
US6814243B2 (en) * 2000-08-23 2004-11-09 Caterpillar Inc Replaceable filter with locking mechanism
US6481580B1 (en) * 2000-08-23 2002-11-19 Caterpillar Inc Fluid filter with locking mechanism
GB2373457A (en) * 2001-03-19 2002-09-25 Dana Corp A filter with releasable housing portions
US6627078B1 (en) 2001-08-22 2003-09-30 Nelson Industries, Inc. Filter element cover grip
US6770196B2 (en) * 2002-03-20 2004-08-03 Arvin Technologies, Inc. Filter cap with releasable filter element
US8001801B2 (en) * 2006-12-19 2011-08-23 Whirlpool Corporation Water filter removal and installation tool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742610A1 (en) * 1977-09-22 1979-03-29 Zahnradfabrik Friedrichshafen OIL RESERVOIR WITH REPLACEABLE FILTER CARTRIDGE AND SAFETY VALVE
EP0612549A2 (en) * 1993-02-09 1994-08-31 Knecht Filterwerke Gmbh Oil filter for purifying lubricating oil
DE4344588A1 (en) * 1993-12-24 1995-06-29 Knecht Filterwerke Gmbh Air bleed channel for fuel filter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231999A1 (en) * 1992-09-24 1994-03-31 Bosch Gmbh Robert Filters for cleaning fuel
DE4303694B4 (en) * 1993-02-09 2004-01-29 Mahle Filtersysteme Gmbh Liquid filter with overflow valve
US5458767A (en) * 1994-08-10 1995-10-17 Parker-Hannifin Corporation Fuel filter assembly with dual filter media and by-pass device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742610A1 (en) * 1977-09-22 1979-03-29 Zahnradfabrik Friedrichshafen OIL RESERVOIR WITH REPLACEABLE FILTER CARTRIDGE AND SAFETY VALVE
EP0612549A2 (en) * 1993-02-09 1994-08-31 Knecht Filterwerke Gmbh Oil filter for purifying lubricating oil
DE4344588A1 (en) * 1993-12-24 1995-06-29 Knecht Filterwerke Gmbh Air bleed channel for fuel filter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19737699A1 (en) * 1997-08-29 1999-03-04 Mann & Hummel Filter Filter module
DE19852587A1 (en) * 1998-08-11 2000-02-17 Mann & Hummel Filter Horizontal oil or fuel filter for vehicles has a drain that can be positioned in the lowest position
DE29915840U1 (en) * 1999-09-09 2001-01-25 Ing. Walter Hengst GmbH & Co KG, 48147 Münster Openwork valve body filter
US6415759B2 (en) 2000-02-29 2002-07-09 Bombardier-Rotax Gmbh Four stroke engine having flexible arrangement
DE102008040319A1 (en) * 2008-07-10 2010-01-14 Deere & Company, Moline Filter arrangement for filtering a liquid or gaseous medium

Also Published As

Publication number Publication date
DE19642641C2 (en) 1998-03-19
FR2741548A1 (en) 1997-05-30
GB2307422A (en) 1997-05-28
GB9623420D0 (en) 1997-01-08

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MAHLE FILTERSYSTEME GMBH, 70376 STUTTGART, DE

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20120501