WO2020216890A1 - Ensemble filtre - Google Patents

Ensemble filtre Download PDF

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Publication number
WO2020216890A1
WO2020216890A1 PCT/EP2020/061439 EP2020061439W WO2020216890A1 WO 2020216890 A1 WO2020216890 A1 WO 2020216890A1 EP 2020061439 W EP2020061439 W EP 2020061439W WO 2020216890 A1 WO2020216890 A1 WO 2020216890A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective housing
filter
filter device
support body
webs
Prior art date
Application number
PCT/EP2020/061439
Other languages
German (de)
English (en)
Inventor
Stephan Deiss
Original Assignee
Technotrade Verwaltungsgesellschaft Mbh
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 Technotrade Verwaltungsgesellschaft Mbh filed Critical Technotrade Verwaltungsgesellschaft Mbh
Priority to EP20721557.5A priority Critical patent/EP3959370A1/fr
Publication of WO2020216890A1 publication Critical patent/WO2020216890A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/024—Devices for adding soap or other washing agents mounted on the agitator or the rotating drum; Free body dispensers

Definitions

  • the present invention relates to a filter device for loose insertion in egg ne drum of a washing machine with a liquid-permeable protective housing in which at least one filter element is taken up from a filter material.
  • washing balls made of plastic which are added to the laundry in egg ne drum of a washing machine and are intended to filter threads, in particular flaars, and fibers due to their surface.
  • washing balls The disadvantage of these washing balls is that the surface responsible for the actual filter function comes into direct contact with the laundry or gets caught in the laundry, thus being largely covered and thus no longer exposed to the free circulation of liquid. Another disadvantage is that the balls caught in the laundry can pull threads out of delicate items of clothing.
  • DE 100 10 879 A1 discloses a washing machine partial flow filter with a spherical housing in which a filter is freely movable or rotatably mounted. By moving the filter relative to the housing, the water should flow better through the filter in order to separate lint during this movement. Free movement of the filter in the housing leads to increased abrasion due to the mechanical stress. A rotatable bearing that can be used in the wash liquor is complex to implement. In addition, items of laundry can jam the filter in the housing or stick to it during the washing process and thus render the filtering effect unusable. An opening device for replacing or cleaning the filter is not provided.
  • the filter device has a liquid-permeable protective housing in which at least one filter insert is arranged with a support body, the at least one filter insert being held on or in the support body and the protective housing, in particular being fixed between them, for example in a clamping or form-fitting manner.
  • the filter device can be made significantly larger than the previously known washing balls.
  • the filter insert is made from a flowable sheet material, the surface of which is provided with small flakes or loops, so that an effective adhesion of flaars or fibers is made possible.
  • the Fil termony can have, for example, two sleeve-shaped and / or frustoconical shaped bodies, which are arranged interchangeably in the protective housing.
  • the filter insert preferably encloses a flea space in which the support body is arranged so that the filter insert is fixed in a substantially stable position between the support body and the protective housing.
  • the sheet material can be shaped into a sleeve, a ball or a truncated cone and fixed in the mold by means of fastening means, in particular by welding. Furthermore, the sheet material can be shaped into a ball brush or a round brush.
  • the protective housing and / or the support body have a grid structure in order to allow the liquid to flow through the filter insert.
  • the webs of the lattice structure can extend at least 2mm, preferably at least 4mm, in the radial direction relative to a longitudinal axis of the shaped body, so that a certain distance is created between the laundry and the filter material of the filter insert and they do not get caught directly on the filter material can.
  • the width of the webs can preferably be between 1 mm to 8mm, in particular 2mm to 6mm, so that the webs are stable enough to provide large openings between the webs.
  • the protective housing comprises webs that are located between a ring on a plane of division of two parts of the protective housing and a node point arcuate extend.
  • the cross-sectional contour of the webs can change over the arcuate course.
  • the webs can have a U-shaped cross section, the two legs on the U-shaped cross section being longer than adjacent to the node point.
  • the protective housing consists of at least two parts, the filter material or the filter insert formed from it can be easily replaced.
  • the parts of the protective housing can be releasably connected to one another by a locking device, in particular by a bayonet lock on two adjacent rings, a thread or a latching connection.
  • the protective housing preferably has the outer shape of a Rotationskör pers, in particular the shape of an elongated ellipsoid of revolution with a cone-shaped filter insert, or a polyhedron, which has the advantage that the sleeve-shaped and / or cone-shaped filter insert can be easily attached to the inner insert.
  • the ellipsoid of revolution has no sharp edges or corners, and damage to the drum and the textiles and clothing items to be washed can be prevented.
  • a Rotationskör by is a body whose surface is created by rotating a curve around an axis that is not on the curve.
  • the protective housing has a lattice structure with webs which, with an outer surface, occupy at most 20%, preferably at most 15% of the outer surface of the protective housing without webs, which has the advantage that good permeability during washing is guaranteed .
  • An outer surface of the filter material can be kept at least 90%, in particular more than 95%, away from the protective housing, the distance preferably being in a range between 1 mm and 30 mm. This reduces coverage of the surface of the filter material by the protective housing, which improves the filter performance.
  • the protective housing preferably has an external volume of at least 100 ml, in particular at least 150 ml. As a result, the protective housing is more difficult to get into sleeves or other items of clothing and remains through-flow for the wash liquor.
  • the protective housing and part of the support body can optionally be connected to one another via a plug-in connection, in particular with a pin that is inserted into a receptacle, in order to thus give a defined position and thus form a gap between the outer protective housing and the inner support body .
  • the plug connection can be provided at a junction of the protective housing.
  • the support body can be produced separately from the filter material. Alternatively, it is also possible to form the support body integrally with the filter material or to connect it to it in a materially bonded manner, for example by welding or gluing.
  • Figure 1 is a perspective view of a filter device according to the invention in spherical shape
  • FIG. 2 shows an exploded view of the filter device from FIG. 1;
  • FIG. 3 shows a detailed view of the filter material of the filter device of FIG. 1;
  • FIG. 4 shows a detailed view of a modified filter material
  • FIG. 5 shows a perspective view of a modified filter device in the form of a ball
  • FIG. 6 is a perspective view of a modified filter device in an elongated round shape
  • FIG. 7 shows a perspective view of a modified filter device in the form of a sleeve with rounded ends
  • FIG. 8 shows a perspective view of a filter device according to a further exemplary embodiment
  • FIG. 9 is a perspective view of a modified filter device.
  • a filter device 1 for loose insertion into a drum of a washing machine comprises an outer liquid-permeable protective housing 4 which is composed of parts 4a and 4b.
  • a Fil tergan 3 is added, on which the liquid can flow past in a washing machine or flows through it. Solids, such as fibers or flaars, can become attached to the filter element 3 and are then collected.
  • the filter insert 3 comprises a first part 3a and a second part 3b, each of which is frustoconical and hollow on the inside.
  • the two parts 3a and 3b are formed from a flat material, for example a textile material with a loop or hook-shaped surface and wound into a sleeve or a truncated cone.
  • At one edge fastening means are provided to fix the part 3a and 3b in the wound position.
  • a welded or glued seam can be provided as fastening means, or mechanical fastening means can be used.
  • a support body 2 is arranged, which comprises a first support body part 2a and a second support body part 2b.
  • the support body parts 2a and 2b are frustoconical and consist of a grid structure which are arranged on an inside of the parts 3a and 3b of the filter insert 3 for support.
  • the two support body parts 2a and 2b can alternatively also be designed as a one-piece body or be welded or glued together ver.
  • the support body can optionally also be formed integrally with the filter insert 3, for example as a support grid.
  • the hemispherical parts 4a and 4b of the protective housing 4 comprise a ring 40 in the area of a dividing plane, from which several webs 41 extend to a node 42 at the end.
  • the arched webs 41 can be flat or profiled in cross section.
  • the webs 41 are U-shaped in cross section and have two legs 43, between which egg ne groove 44 extends. The length of the legs 43 becomes shorter from the ring 40 to the node 42, so that the area of the node 42 on the protective housing 4 has a certain spring effect.
  • the two parts 4a and 4b of the protective housing 4 are on the rings 40 in the manner of a bayonet lock 45 with interlocking hooks or webs that can be moved into an unlocked position by turning, or by means of a Locking connection releasably fixed to one another.
  • the parts 4a and 4b can be detached from one another so that the filter insert can be removed from the support body 2.
  • the parts 4a and 4b of the protective housing 4 are preferably one-piece plastic parts which have smooth surfaces in order to avoid damage to the items of clothing during washing.
  • the support body 2 comprises two support body parts 2a and 2b, which are designed in the form of a truncated cone or a pyramid, although other shapes can also be used.
  • the two support body parts 2a or 2b rest against one another with a ring 20 and taper outwards. In particular, they can be designed symmetrically to a middle plane.
  • the support body parts 2a and 2b have a lattice structure with longitudinal struts 21 and at least one annular cross strut 22.
  • a ring 23 is provided with an opening 24 into which an inwardly protruding pin 46 or bolt of the protective housing 4 engages to form a plug connection.
  • the pin 46 passes through an opening on a part 3a or 3b of the filter insert 3.
  • the support body 2 and the filter insert 3 are held in a predetermined position in the protective housing 4 and a gap or space is defined in which the filter insert 3 is arranged .
  • the outer surface of the filter insert 3 is held at a distance from the protective housing 4 essentially everywhere, so that the flow around the filter material is good.
  • the distance is preferably in a range between 1 mm to 30 mm, but only in the edge areas immediately adjacent to the node 42 and the ring 40, a smaller distance can be seen.
  • the filter insert 3 If the filter insert 3 is dirty, it can be easily replaced by opening the parts 4a and 4b of the protective housing 4 by opening the bayonet catch or a snap-in connection, in order to then take out the parts 3a and 3b of the filter insert 3 and change them , or to clean.
  • the volume of the protective housing is at least 0.1 I, in particular between 0.15 I to 0.4 I, in order to prevent the protective housing 4 from becoming too small and then getting into laundry items.
  • Figure 3 an enlarged section of the filter material of the filter insert 3 is shown.
  • the filter material has loops or flakes 30 on which flaars or fluff can stick and then no longer adhere to the pieces of clothing.
  • extruded flakes 31 can also be provided on an otherwise flat filter material which protrude from the filter material in a T-shaped, Y-shaped or L-shaped manner. This can also be used to filter particles, fluff or flaars.
  • FIG 5 the filter device is shown according to a modified,sbei game in the assembled state.
  • a spherical protective housing 4 ‘is formed from one part and has webs 4T which extend between two nodes 42 '.
  • a filter insert 3 4 is held captive in the protective housing 4 'and can flow through it during washing.
  • a filter device in which a protective housing 14 surrounds a one-part or multi-part filter insert 3 and has two parts 14a and 14b, which include a ring 15 and webs 16 which converge at a junction 17.
  • the protective housing 14, however, is not spherical, but rather oval in cross section in a longitudinal direction. Other shapes of the protective housing 14 are possible, in particular an elongated ellipsoid of revolution or a polyhedron.
  • a filter device with a one-part or multi-part protective housing 50 is shown in which a filter insert 53 is arranged.
  • the protective housing 50 is sleeve-shaped with two outer domes 51 as nodes.
  • the domes 51 are connected to one another via webs 52.
  • a support body (not shown) is provided in the filter insert 53.
  • the replacement of the Fil ter Vietnamese salts 53 can be done, for example, by opening a dome 51 in order to then remove the sleeve-shaped filter element 53 and insert a new filter element again.
  • the dome 51 can be held in the closed position via a latching connection.
  • a modified filter device with a protective housing 4 which is designed according to the first embodiment.
  • a filter insert 30 with a plurality of fan elements 31 which are held in an inner region by a support body, for example a rod or a tube.
  • the fan elements 31 consist at least partially of a filter material, on the surface of which particles can adhere.
  • the modified filter device shown in Figure 9 comprises a protective housing 4 according to the first embodiment.
  • the protective housing 4 there are several filter inserts 32 in the form of spheres that have a filter surface.
  • the filter inserts 32 are essentially dimensionally stable and comprise support bodies which are integrally formed.
  • the diameter of the balls is larger than the maximum opening width in the protective housing 4, so that the filter inserts 32 are held captive when the protective housing 4 is closed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

L'invention concerne un ensemble filtre conçu pour être inséré de manière amovible dans un tambour d'un lave-linge, comprenant un logement de protection (4, 4', 14, 50) perméable aux liquides, lequel accueille au moins un élément filtrant (3, 3', 13, 30, 32, 53) constitué d'un matériau filtrant, un corps de support (2) étant disposé dans cet élément ou ces éléments filtrant(s) (3, 3', 13, 30, 32, 53), l'élément ou les éléments filtrant(s) étant maintenu(s) par l'intermédiaire du corps de support (2) contre ou dans le logement de protection (4).
PCT/EP2020/061439 2019-04-24 2020-04-24 Ensemble filtre WO2020216890A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20721557.5A EP3959370A1 (fr) 2019-04-24 2020-04-24 Ensemble filtre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202019102297.3U DE202019102297U1 (de) 2019-04-24 2019-04-24 Filtereinrichtung
DE202019102297.3 2019-04-24

Publications (1)

Publication Number Publication Date
WO2020216890A1 true WO2020216890A1 (fr) 2020-10-29

Family

ID=70465071

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/061439 WO2020216890A1 (fr) 2019-04-24 2020-04-24 Ensemble filtre

Country Status (3)

Country Link
EP (1) EP3959370A1 (fr)
DE (1) DE202019102297U1 (fr)
WO (1) WO2020216890A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10010879A1 (de) 2000-02-29 2001-08-30 Adam Krecisz Waschmaschineteilstromfilter
KR20120011542A (ko) * 2010-07-29 2012-02-08 이현종 세탁볼
WO2017173215A1 (fr) * 2016-03-31 2017-10-05 Rozalia Project Incorporated Piège à fibres et procédé d'élimination de fibres
KR20180000911U (ko) * 2016-09-25 2018-04-04 이현영 이물질 거름기능을 가지는 세탁볼
CN207699870U (zh) * 2017-11-29 2018-08-07 博西华电器（江苏）有限公司 用于洗衣机的洗衣球

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10010879A1 (de) 2000-02-29 2001-08-30 Adam Krecisz Waschmaschineteilstromfilter
KR20120011542A (ko) * 2010-07-29 2012-02-08 이현종 세탁볼
WO2017173215A1 (fr) * 2016-03-31 2017-10-05 Rozalia Project Incorporated Piège à fibres et procédé d'élimination de fibres
KR20180000911U (ko) * 2016-09-25 2018-04-04 이현영 이물질 거름기능을 가지는 세탁볼
CN207699870U (zh) * 2017-11-29 2018-08-07 博西华电器（江苏）有限公司 用于洗衣机的洗衣球

Also Published As

Publication number Publication date
DE202019102297U1 (de) 2020-07-27
EP3959370A1 (fr) 2022-03-02

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