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EP1661500A1 - Sac filtrant jetable pour aspirateurs - Google Patents

Sac filtrant jetable pour aspirateurs Download PDF

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Publication number
EP1661500A1
EP1661500A1 EP04106030A EP04106030A EP1661500A1 EP 1661500 A1 EP1661500 A1 EP 1661500A1 EP 04106030 A EP04106030 A EP 04106030A EP 04106030 A EP04106030 A EP 04106030A EP 1661500 A1 EP1661500 A1 EP 1661500A1
Authority
EP
European Patent Office
Prior art keywords
bag
bag according
sheets
perimetral edge
joining
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.)
Withdrawn
Application number
EP04106030A
Other languages
German (de)
English (en)
Inventor
Marco Padroni
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1661500A1 publication Critical patent/EP1661500A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1436—Connecting plates, e.g. collars, end closures
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles

Definitions

  • the present invention relates to filter bags for vacuum cleaners and in particular relates to bags which are disposable, i.e. are intended to be thrown away together with their contents.
  • the manufacturers of vacuum cleaners must take into consideration three separate requirements: the first requirement relates to the filtering capacity of the bag per unit of surface area, which must be very high; the second requirement relates to the air flow which must be correlated both to that necessary for the suction capacity of the vacuum cleaner and, in most cases, to the necessity to cool the electric motor of the vacuum cleaner; the third requirement relates to the structural properties of the bag, which must ensure on the one hand that the bag remains intact during the whole operating period inside the vacuum cleaner and on the other hand to allow the bag to be inflated so that it occupies most of the compartment inside which it is housed.
  • the structural properties are mostly influenced by the materials from which the bag is made and by the shape which is imparted to the said bag.
  • Most of the bags for vacuum cleaners are made of materials with hybrid properties, often multi-layer materials, which pose problems and have a fairly high manufacturing cost.
  • the shape which is imparted to the bag is usually the result of a compromise between the shape which is most suitable for the maximum possible inflation inside the suction compartment and the shape which is most useful for the purposes of mass production; quite frequently preference is given to the shape which is easiest to produce, to the detriment, therefore, of the functional effectiveness of the bag.
  • the object of the present invention is thus to provide a disposable filter bag for a vacuum cleaner in which the manufacturing costs are significantly reduced, with regard to both the choice of materials and use thereof, while nevertheless maintaining a high filtering capacity and high degree of adaptability in terms of shape.
  • the present invention therefore relates to a disposable filter bag for a vacuum cleaner, comprising two sheets of flexible filter material, such as for example non-woven fabric or the like, which are arranged on top of each other and joined together along their perimetral edge, there being envisaged means for joining said bag to the suction pipe of a vacuum cleaner, characterized in that the perimetral edge of said bag is a convex closed line, along the greater part of which it is possible to define wide-angle adjacent sections so that the axial expansion of the bag caused by the entry of the sucked-in air allows at the same time radial expansion thereof.
  • the perimetral edge is a convex polygon having at least five sides; alternatively it may be a profile comprising one or more straight lines and one or more curved lines or a profile comprising one or more curved lines or also an ellipse.
  • the sheets may each comprise one or more layers of different material or the same material.
  • the various layers may have a specific weight which is the same or different from each other; in particular, the layers will preferably consist of synthetic material and in particular synthetic non-woven fabric.
  • the portion of the sheets for joining together has a width substantially ranging between the sum of the thicknesses of the two sheets and twice said sum; in particular a width corresponding to the sum of the said thicknesses is preferable.
  • Joining together may be performed by means of gluing, stitching or also, where permitted by the material used, it may be performed by means of welding, and from among the various welding methods ultrasound welding is preferred.
  • the means for joining the bag to the suction pipe of the vacuum cleaner may envisage a hole formed in one of the two sheets or an opening provided along the perimetral edge of the said bag.
  • Figure 1 shows a disposable filter bag for a vacuum cleaner according to the present invention
  • 1 denotes one of the two sheets of flexible filter material, such as for example non-woven fabric, from which said bag is made.
  • the welding edge 101 is formed along the perimeter of the sheet 1; the perimetral edge of the sheet 1 has the straight sections 111 and the curved section 121.
  • the cardboard tag 3 is positioned on the sheet 1 and allows joining with the suction pipe of the vacuum cleaner; the tag has, passing through its upper layer 103 shown here, a substantially axial hole 113 inside which the rubber seal 203 is positioned, said seal also being provided with an axial hole 213 which is coaxial with the hole 113.
  • Figure 2 shows the bag according to the embodiment of Figure 1 during inflation, in order to illustrate the situation which occurs when the suction pipe of a vacuum cleaner, schematically shown as a broken line indicated by the number 10 in the figure, is inserted into the hole 203 of the tag 3; identical parts are indicated by the same numbers.
  • the sheet 1 and the sheet 2 are shown symmetrically inflated owing to the action of the air which is sucked in.
  • Figure 3 shows a detail of the bag according to Figure 1, namely the side of the sheet 1 of the bag directed towards the inside thereof; the sheet 1 is provided with a hole 201 which corresponds to the hole 313 in the base layer 303 of the tag 3.
  • the sheet 1 is fixed to the base layer 303 of the tag 3 by means of metal staples 323 which are arranged in form of a ring around the axial holes 201 and 313.
  • Figure 4 shows a detail cross-sectioned along the line IV-IV of Figure 1; identical parts have been indicated by the same numbers.
  • the figure shows fixing of the tag 3 to the sheet 1 of the bag; the bottom cardboard layer 303 is secured to the sheet 1 by means of the metal staples 323 and is connected to the upper layer 103 of the tag 3 by means of glue 333.
  • the seal 203 is gripped between the bottom layer 303 and the upper layer 103 of the tag 3, with the hole 213 positioned coaxial with the holes 113 and 313.
  • Figure 5 shows more clearly the position and the form of the metal staples 323.
  • FIG 6 which is an enlarged detail of Figure 4, shows more clearly the join between the sheets 1 and 2, which form the bag according to the invention; the width 20 of the welding edge 101 is shown as being substantially equal to the sum 30 of the thicknesses of the two sheets 1 and 2.
  • the welding edge 101' is shown as a dot-dash line and has a width 40 substantially equal to twice the sum 30 of the thicknesses of the sheets 1 and 2.
  • Figures 7 to 12 show a corresponding number of constructional variants of the bag according to the present invention
  • the bag according to Figure 7 is open along one side edge and the sides 131 of the sheet 1 and 112 of the sheet 2 form the edges of the opening intended for connection to the suction pipe of the vacuum cleaner.
  • the connection is performed by means of an elastic band or a circumferential strap able to surround the said pipe.
  • the bag according to Figure 8 instead has a perimetral edge consisting of two arcs of a circle which are diametrically opposite and spaced by parallel straight sections.
  • the bag according to Figure 9 has a circular perimetral edge
  • the bag according to Figure 10 has an irregular, polygonal, perimetral edge
  • the bag according to Figure 11 has an elliptical perimetral edge.
  • the bag according to Figure 12 has a perimetral edge formed by curved sections in which, as in the bag according to Figure 7, the opening intended for connection to the suction pipe of the apparatus is formed by the edge 112 of the sheet 2 and by the edge 131 of the sheet 1, which along that section are connected together.
  • the bag according to the invention is formed by two sheets, only one of which is visible in the Figure and which are identically shaped.
  • the shape of the sheets is of particular importance in particular in relation to the possibility of expansion of the bag during use thereof and therefore the actual volume which the bag may acquire. It has been noted that geometrical figures in which two consecutive sections of the perimetral edge are joined together with a wide angle, as for example in the case shown here or in the cases illustrated in Figures 7 to 12, allow extremely effective expansion of the bag.
  • Shapes which are able to achieve the objects of the invention are therefore considered to be those which have a convex polygonal perimetral edge with a number of sides greater than or equal to five, shapes which have an elliptical perimetral edge and shapes which have a circular perimetral edge; moreover, the shapes which have a perimetral edge formed by straight sections and curved sections are considered likewise suitable for use, provided that these sections are joined together with a wide angle.
  • Another factor which influences considerably the functional capacities of the bag according to the invention is the position of the area for joining together the sheet 1 and the sheet 2 of flexible filter material.
  • the two sheets are joined together along the respective perimetral edges over a width which essentially is not greater than twice the sum of the thicknesses of the said two sheets and in particular is substantially equal to the said sum.
  • the joined portion must not exceed in terms of width twice the sum of the said thicknesses, otherwise it would result in the bag being rigid during expansion; moreover, it is best for the width not to be less than the sum of the said thicknesses since the join would not be strong enough.
  • the resistance offered by the joining zone of the two sheets to expansion of the bag is minimal, without adversely affecting in any way the strength of the bond between the said sheets.
  • the join may be achieved in various ways; in the case where the sheets of flexible filter material are made of non-woven fabric of the synthetic type, a preferred joining method uses welding and, among the welding techniques, welding based on ultrasound is particularly effective.
  • the sheets which form the bag may each be made as a single layer or may comprise several layers of materials which are the same or different from each other; moreover a different specific weight may be envisaged for the layers which compose each sheet of a same bag.
  • connection between the tag 3, which allows joining with the suction pipe of the vacuum cleaner, and one of the two sheets of flexible material of the bag has some characteristic features.
  • This connection must in fact be stable vis-a-vis the tensile load which is exerted by the air introduced inside the bag; for this purpose, the tag 3 comprises a base layer 303 which is connected to the upper layer of the tag 3 by means of an adhesive 333 or the like and it is said base layer which is joined by means of the metal staples 323 to the sheet 1 in the vicinity of the respective holes 313 and 201.
  • the metal staples which could also be made of plastic material or the like, ensure a fixing action which is of decidedly better quality than simple gluing and at the same time require a decidedly small joining surface area.
  • the tag 3 will be shaped according to the different type of connection required by the vacuum cleaner inside which the bag must be positioned.
  • the tag could be joined to the bag in any other way; in particular, a tag of plastic material could be glued to the said bag or welded thereto and preferably welded by means of ultrasound.
  • connection with the vacuum cleaner is performed via a hole formed in one of the sheets which form the bag, but it may also be established by means of an opening situated along the edge of the said bag.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
EP04106030A 2003-11-27 2004-11-24 Sac filtrant jetable pour aspirateurs Withdrawn EP1661500A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITGE20030025 ITGE20030025U1 (it) 2003-11-27 2003-11-27 Sacchetto per aspirapolvere realizzato in tessuto non tessuto

Publications (1)

Publication Number Publication Date
EP1661500A1 true EP1661500A1 (fr) 2006-05-31

Family

ID=35892603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04106030A Withdrawn EP1661500A1 (fr) 2003-11-27 2004-11-24 Sac filtrant jetable pour aspirateurs

Country Status (2)

Country Link
EP (1) EP1661500A1 (fr)
IT (1) ITGE20030025U1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011101124A1 (fr) 2010-02-19 2011-08-25 Eurofilters Holding N.V. Sac à poussières comprenant un pli latéral
EP2366319A1 (fr) 2010-03-19 2011-09-21 Eurofilters Holding N.V. Sac d'aspirateur
EP2428151A1 (fr) * 2010-09-08 2012-03-14 Eurofilters Holding N.V. Dispositif destiné à aspirer à l'aide d'un appareil d'aspiration et d'un sac filtrant
EP2452603A1 (fr) 2010-11-10 2012-05-16 Eurofilters Holding N.V. Sachet de filtre d'aspirateur plié
EP2452601A1 (fr) 2010-11-10 2012-05-16 Eurofilters Holding N.V. Sachet de filtre d'aspirateur doté d'un dispositif de fixation supplémentaire
US10080474B2 (en) 2013-03-15 2018-09-25 Eurofilters Holding N.V. Vacuum cleaner filter bag

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596806A (en) * 1946-01-18 1952-05-13 Electrolux Corp Vacuum cleaner dust bag
US2731106A (en) * 1953-03-16 1956-01-17 Hoover Co Suction cleaner with pleated filter
US2734594A (en) * 1956-02-14 Air filtering cleaners
GB2004459A (en) * 1977-09-21 1979-04-04 Electrolux Ltd A vacuum cleaner incorporating a dust container with sealing means
FR2750314A1 (fr) * 1996-06-26 1998-01-02 Laplace Xavier Filtre a poussieres pour aspirateur et aspirateur ainsi equipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734594A (en) * 1956-02-14 Air filtering cleaners
US2596806A (en) * 1946-01-18 1952-05-13 Electrolux Corp Vacuum cleaner dust bag
US2731106A (en) * 1953-03-16 1956-01-17 Hoover Co Suction cleaner with pleated filter
GB2004459A (en) * 1977-09-21 1979-04-04 Electrolux Ltd A vacuum cleaner incorporating a dust container with sealing means
FR2750314A1 (fr) * 1996-06-26 1998-01-02 Laplace Xavier Filtre a poussieres pour aspirateur et aspirateur ainsi equipe

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011101124A1 (fr) 2010-02-19 2011-08-25 Eurofilters Holding N.V. Sac à poussières comprenant un pli latéral
US8974566B2 (en) 2010-02-19 2015-03-10 Eurofilters Holding N.V. Vacuum cleaner filter bag having a side fold
EP2662010A1 (fr) 2010-03-19 2013-11-13 Eurofilters Holding N.V. Sac d'aspirateur
EP2366319A1 (fr) 2010-03-19 2011-09-21 Eurofilters Holding N.V. Sac d'aspirateur
EP2366321A1 (fr) 2010-03-19 2011-09-21 Eurofilters Holding N.V. Sac d'aspirateur
WO2011113544A2 (fr) 2010-03-19 2011-09-22 Eurofilters Holding N.V. Sac d'aspirateur filtrant
WO2011113543A1 (fr) 2010-03-19 2011-09-22 Eurofilters Holding N.V. Sac d'aspirateur filtrant
US10188248B2 (en) 2010-03-19 2019-01-29 Eurofilters Holding N.V. Vacuum cleaner filter bag
US10182691B2 (en) 2010-03-19 2019-01-22 Eurofilters Holding N.V. Vacuum cleaner filter bag
US10178932B2 (en) 2010-03-19 2019-01-15 Eurofilters Holding N.V. Vacuum cleaner filter bag
US9554681B2 (en) 2010-09-08 2017-01-31 Eurofilters Holding N.V. Vacuum-cleaning apparatus with vacuum-cleaner unit and filter bag
CN103188977B (zh) * 2010-09-08 2017-08-25 欧罗菲利特斯控股公司 具有真空清洁单元和过滤袋的真空清洁设备
JP2013539397A (ja) * 2010-09-08 2013-10-24 ユーロフィルターズ ホールディング エヌ．ブイ． 掃除機ユニット及びフィルタ・バッグを有する掃除機
WO2012031734A3 (fr) * 2010-09-08 2012-07-26 Eurofilters Holding N.V. Dispositif d'aspiration comprenant un aspirateur et un sac filtrant
CN103188977A (zh) * 2010-09-08 2013-07-03 欧罗菲利特斯控股公司 具有真空清洁单元和过滤袋的真空清洁设备
JP2015144847A (ja) * 2010-09-08 2015-08-13 ユーロフィルターズ ホールディング エヌ．ブイ． 掃除機ユニット及びフィルタ・バッグを有する掃除機
AU2011300869B2 (en) * 2010-09-08 2015-09-24 Eurofilters Holding N.V. Vacuum-cleaning apparatus with vacuum-cleaner unit and filter bag
RU2578989C2 (ru) * 2010-09-08 2016-03-27 Еврофильтерс Холдинг Н.В. Устройство для всасывания пыли, содержащее пылесос и фильтровальный мешок
EP2428151A1 (fr) * 2010-09-08 2012-03-14 Eurofilters Holding N.V. Dispositif destiné à aspirer à l'aide d'un appareil d'aspiration et d'un sac filtrant
WO2012062458A1 (fr) 2010-11-10 2012-05-18 Eurofilters Holding N.V. Sac d'aspirateur filtrant plié
EP2452601A1 (fr) 2010-11-10 2012-05-16 Eurofilters Holding N.V. Sachet de filtre d'aspirateur doté d'un dispositif de fixation supplémentaire
EP2452603A1 (fr) 2010-11-10 2012-05-16 Eurofilters Holding N.V. Sachet de filtre d'aspirateur plié
WO2012062457A1 (fr) 2010-11-10 2012-05-18 Eurofilters Holding N.V. Sac filtre pour aspirateur avec système de fixation supplémentaire
US10080474B2 (en) 2013-03-15 2018-09-25 Eurofilters Holding N.V. Vacuum cleaner filter bag

Also Published As

Publication number Publication date
ITGE20030025U1 (it) 2005-05-28

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