EP0532057A2 - Sac à poussières - Google Patents

Sac à poussières Download PDF

Info

Publication number
EP0532057A2
EP0532057A2 EP19920116903 EP92116903A EP0532057A2 EP 0532057 A2 EP0532057 A2 EP 0532057A2 EP 19920116903 EP19920116903 EP 19920116903 EP 92116903 A EP92116903 A EP 92116903A EP 0532057 A2 EP0532057 A2 EP 0532057A2
Authority
EP
European Patent Office
Prior art keywords
edge
base plate
filter bag
connection
connection opening
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
EP19920116903
Other languages
German (de)
English (en)
Other versions
EP0532057B1 (fr
EP0532057A3 (en
Inventor
Wieland Gühne
Heinz-Jürgen Ahlf
Manfred Eckart
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.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding 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
Priority claimed from IT12462/88A external-priority patent/IT1220563B/it
Application filed by Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Priority claimed from EP89106043A external-priority patent/EP0339323B1/fr
Publication of EP0532057A2 publication Critical patent/EP0532057A2/fr
Publication of EP0532057A3 publication Critical patent/EP0532057A3/de
Application granted granted Critical
Publication of EP0532057B1 publication Critical patent/EP0532057B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters

Definitions

  • the invention relates to filter bags which can be used in connection piece connections in electric vacuum cleaners and which have a base plate with two side edge gripping openings, which is covered with foam in the area of a connection opening of the connection piece connection connection, and whose surface shape corresponds approximately to the cross section of a vacuum cleaner chamber connection piece and on the underside of which the filter bag wall is glued in such a way that the filter bag wall merges into the side wall via a folded edge, the folded edge crossing the gripping openings approximately in the middle and being protruded by two overhangs adjacent to the gripping openings for supporting the base plate on an edge step of the chamber connecting piece, between which there is on the narrow side of the base plate a tongue is located.
  • a filter bag of this type is known from EP-A-0 289 710.
  • the tongue on the narrow side of the base plate interacts with a counter feature in the area of the inner wall of the chamber connector.
  • these tongues have the advantage of a small, practically "point”system; This means that regardless of any storage-related or other warping of the base plate, which is generally made of cardboard, a lift-free support is achieved.
  • the invention has set itself the task of optimizing a generic filter bag assignment.
  • additional protrusions of the above-described solution existing on the base plate should be used sensibly.
  • the procedure is such that the protrusions on the side walls are also designed as tongues and, in an angularly symmetrical arrangement to the connection opening, form projections of this fold edge starting from the folded edge and the edge of a freely projecting ring zone of the foam cover forms a free connection opening .
  • the tongues now also realized on the side edges are not only designed as further small-scale "support points"; these tongues can even enrich the "key profile”. Any warpage-related warpage of the side edges of the base plate no longer falsify the edition.
  • the arrangement of the tongues angularly symmetrical with respect to the connection opening also creates the same functional conditions.
  • the protrusion of the tongues over the folded edge also allows them to be recognized optically, which simplifies the targeted assignment of the base plate.
  • the tongues also act as a spacer from the surrounding wall of the housing, namely as an improved centering aid in the sense of pre-centering when inserted. The fine centering then follows through the nozzle connection.
  • the base plate for example made of cardboard, brings the usual rigidity of such a plate, while the foam cover has the elasticity or flexibility which is favorable for forming a ring membrane, so that the edge of such a freely projecting ring zone of the foam cover allows the creation of a free connection opening.
  • the procedure is then such that the lateral tongues are also covered with the foam cover which surrounds the connection opening mentioned.
  • This has the advantage of a kind of clamping intermediate layer and contributes to the peripheral securing of the connector connection. In addition, this provides security against slipping of the base plate in the event of any unfavorable tolerance pairings towards the edge step of the chamber connector.
  • the electric vacuum cleaner shown is designed as a handheld device. It has a housing 1, to which a handle 2 is connected at the top with an end handle 3. In the transition area between handle 3 and handle 2 there is an on / off switch 4. The electrical cable connection is not shown.
  • the housing 1 is subdivided into a motor housing 5 and a chamber 6 extending thereon for receiving a filter bag 7.
  • the motor fan is also not shown in detail in the drawing.
  • the side of the filter bag 7 facing the motor housing 5 is in the connection connection V to the blower air duct 8.
  • the underside of the motor housing 5 merges into a pipe coupling 9, which produces the air flow connection to a suction nozzle 10.
  • suction nozzle 10 it can be a so-called suction / brush nozzle that has a nozzle mouth Brush roller contains, which is set in rotation via a separate drive.
  • the blower motor thus works from the bottom up, consequently pushes the dust air into the filter bag 7, which is arranged to fall above the motor housing 5.
  • the cross section of the housing 1 is generally rectangular with slightly curved broad sides and narrow sides.
  • the vacuum cleaner can be seen from the broad side.
  • the chamber 6 receiving the cross section corresponding to the filter bag 7 is formed by a wire basket stiffened textile bag 11 which at the bottom, i.e. merges into a stiffened edge in the form of a chamber connector 12 on the motor housing side.
  • the stiffened textile bag 11 can be assigned to this chamber connector 12 by means of the detachable clip plug connection.
  • the plug-on area is set apart.
  • the stage can be seen in Figure 2. It allows a defined interior or exterior assignment of the textile sack. An internal plug assignment is preferred.
  • the housing 1 can be opened practically with its cross-section completely released.
  • the unfolded position results from FIGS. 2 (here in dash-dotted lines), 3 and 5.
  • the folding axis 14 that enables this is located on one narrow side of the housing 1.
  • Their bearing eyes on the chamber neck are designated by 15. These bearing eyes are located at the transition area between the narrow side and the broad side of the chamber 6.
  • a continuous bearing eye of the motor housing 5 extends between the two bearing eyes 15.
  • an intermediate carrier T is also integrated, on which filter bag 7 is seated.
  • the filter bag intermediate carrier T has a plan adapted to the cross section of the housing, but it recedes from the casing wall of the housing, so that it is essentially completely hidden from view in the coaxial position of the motor housing 5 and chamber 6 shown in FIG. Except for a small access point, it is grasped by the flared, lower edge of the chamber connector 12 of the filter bag intermediate carrier T, which is also foldable, and folds about the same folding axis 14 as the filter bag chamber 6.
  • the intermediate carrier T therefore also forms the hinge side, as is the case with also the chamber connector 12, two bearing eyes, which are designated 16 here.
  • the filter bag 7 directly adjoining the intermediate carrier T has a base plate 17. Its general outline also corresponds to the cross-sectional shape of the chamber connector 12, which forms an edge step 18 on the inner wall for support purposes in the region of the narrow sides of the base plate 17. As a result, the base plate 17 cannot slide into the chamber 6 in the opened position of the device.
  • the common folding axis 14 of the chamber connector 12 and the filter bag intermediate carrier T extends approximately at the level of the support edge step 18 of the filter bag base plate 17. In a closed housing (FIG.
  • the edge step 18 extends over the top of said base plate 17, so that it is supported during suction blowing and not being lifted upwards.
  • the bottom of the bottom plate 17 rests, as already indicated, on the top of the Filter bag intermediate support S. T.
  • the narrow side of the base plate 17 there is a type of clamping jaw border between the chamber connector 12 and the intermediate support T.
  • blower air duct 8 projects with its stepped, cylindrical mouth end 8 'into the lower region of a connecting piece 19.
  • the latter protrudes above the upper side of the filter bag intermediate carrier T.
  • the connecting piece 19 is molded onto the intermediate carrier T and projects through an opening 20 of the filter bag base plate 17, corresponding to a cross section, into the interior of the filter bag 7.
  • the connector 19 forms a valve flap 21 at its free end.
  • the latter lies freely with the predominant edge area on the front edge of the connector 19. It is only fixed at the point designated 22, so that it lifts off under the action of the air flow, but returns to its closed position when the corresponding underside load decreases.
  • the valve flap 21 can be created as a separate component and assigned to the location 22 by means of the clip assignment; alternatively, of course, there is the possibility of forming with a correspondingly flexible material of the connector 19 or filter bag intermediate carrier T.
  • the nozzle 19 tapers towards its free end, so that its insertion into the opening 20 has a practically centering effect.
  • the front edge is chamfered. It runs in the direction of the folding axis 14 sloping. A line in this direction intersects the folding axis.
  • the connection point 22 is located in the higher area of the nozzle edge.
  • the socket 19 takes a radial curvature to the axis 14. Between the root region of the socket 19 and the area on the folding axis side, the intermediate carrier T is broken like a window.
  • the hinge-side frame leg has a greater width than the two frame legs facing the broad side wall of the housing.
  • the intermediate carrier T forms a freely accessible handle 24 on its end face there. It is an underside angular extension. This arises from an area that springs back relative to the end face 25 there.
  • the relevant leg runs vertically.
  • the adjoining, essentially horizontal leg runs back to the casing wall of the housing and closes with it at the same level.
  • a hook-type latching device which secures the closed position of the housing and can be actuated by a pushbutton, and is not shown.
  • the corresponding zone of the motor housing 5 is recessed like a niche. The recess bears the reference number 26.
  • cams 27 directed upward extend in the region of the longer frame legs of the intermediate carrier T.
  • the latter close gripping openings 28 on the longer side edges of the filter bag base plate 17.
  • Both gripping openings 28 are chamfered and open towards the corresponding inner wall of the chamber connector. In the open position of the housing 1, the Wasp waist-like central zone of the base plate 17 of the filter bag 7 can be conveniently grasped and lifted out of the chamber 6.
  • the surface shape of the bottom plate 17 of the filter bag 7 which brings up the connecting piece connection V corresponds essentially to the cross section of the chamber neck 12, the bottom plate 17 of the filter bag 7 being supported on the edge step of the inner wall of the chamber neck. This support is also located in the area of the gripping openings 28.
  • the procedure is such that the base plate 17 of the filter bag 7 has three tongues 32a, 32b, 32c in an angularly symmetrical arrangement with respect to the opening 20.
  • the tongues designated 32b and 32c which sit on the longer side edges, run directly into the gripping openings 28 via inclined surfaces Sch (see FIG. 1).
  • the tongue 32a is located on the narrow side of the base plate 17 facing away from the hinge. As an orientation feature, it engages in a suitable counter-feature 33 in the region of the inner wall of the chamber connector 12.
  • the filter bag intermediate carrier T is assigned and designed such that it passes through a limited swivel angle, ie cannot reach the 180 ° angular position of the chamber connector 12; Rather, it remains in the position which is approximately in or beyond the vertical position EE of the nozzle connection cross-sectional plane, so that the nozzle connection connection V is already beyond the bisector of the maximum swivel range of 180 °. In this position, there is enough space for the filter bag 7 to pull it away from the intermediate carrier T. The transition to the position opposite to the fall position, that is opening 20 facing upwards takes place without the possibility of escape of dust or larger particles. The filter bag 7 can therefore be comfortably gripped and lifted in the manner explained above or after removing the chamber. The bag wall is not pushed in.
  • the additional side edge tongues 32b and 32c which run angularly symmetrically to the opening 20 and run obliquely into the gripping openings 28, are covered on the top with foam, which at the same time forms a sealing ring tongue of the hole 20.
  • the folded edges K of the wall (paper) of the filter bag 7 held against the underside of the base plate 17 cross over the gripping openings 28 and are extended outward beyond the tongues 32b and 32c.
  • the chamber 6 or the chamber connector 12 can be disengaged from the folding axis 14. This enables the chamber 6 containing the full filter bag 7 to be conveniently carried to the trash can or the like. In addition, the chamber 6 and the wire basket-stiffened textile bag 11 can be conveniently cleaned from time to time without the whole device hanging on it.
  • connection point on the chamber nozzle side is a molded housing-like projection 12 'which projects into the region of the axis 14 and which is practically congruent extends to the housing-fixed bearing eyes 15 and the axle bearing eyes 16 of the filter bag intermediate carrier T.
  • the locking means are formed by pins sprung against each other and outwards.
  • the intermediate carrier T is equipped with an extrusion coating U.
  • This encapsulation consists of somewhat softer material than that of the intermediate carrier T.
  • the encapsulation extends at least on the edge side, so that not only the narrow end edge of the frame-shaped intermediate carrier T is covered, but also the top and bottom of the intermediate carrier.
  • the soft elastic material conveys not only an edge seal between the base plate 17 of the filter bag 7, but also to the ceiling of the motor housing 5.
  • the material of the extrusion coating U is also drawn into the area of the connector 19 of the intermediate carrier T by surrounding this connector 19 in a jacket-like manner.
  • the corresponding change of sides towards the top of the intermediate carrier is provided by an edge perforation in the foot area of the connector 19.
  • the openings are designated by 63 and can be seen in FIG. 5.
  • the extrusion coating forms a sealing lip 64 which projects into the stepped blower air duct.
  • the sealing lip 64 is tapered in a funnel shape on the channel side.
  • the overmolding also forms the cams 27 explained above, which protrude into the gripping openings 28 of the base plate 17 of the filter bag.
  • the relatively soft material also has sufficient suppleness so that there is no forced coupling.
  • the cams 27 are formed by high-angled wall sections of the encapsulation material (rubber or plastic), which wall sections have a curvature running in the longitudinal direction or end at the end in curvature sections, so that despite the softness the desired stability is present.
  • the edge of the chamber connector 12 on the filter base tips out like a knife (see FIG. 8).
  • the filter bag base plate 17 can be overlapped by at least two lugs 65 located on both sides of the opening 20 of the base plate 17. The overlap is, as can be seen from FIGS. 3 and 4, very small, so that the filter bag 7 can be lifted out of the base plate 17 while the train is under stress.
  • Injection-free zones are only taken into account in the area of the exit of the journal journals 16 and in the area of the handle 25.
  • the mouth edge of the opening 20 of the base plate 17 is lined on the carrier side by an elastic layer 66, explained above as foam. This extends in the vicinity of the opening 20 to the periphery of the base plate 17. It can be a foam material.
  • the extrusion coating U is used to form the valve flap 21. It is a blanket covering the mouth of the nozzle, which is cut all around except for the hinge point 22.
  • the periphery can also the base plate 17 still be included in the support on the edge step 18.
  • the base of the counter features 33 is flush with the edge step 18.
  • the tongues 32b and 32c can also be assigned counter features.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP92116903A 1988-04-29 1989-04-06 Sac à poussières Expired - Lifetime EP0532057B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT12462/88A IT1220563B (it) 1987-05-04 1988-04-29 Aspirapolvere elettrico
IT1246288 1988-04-29
EP89106043A EP0339323B1 (fr) 1988-04-29 1989-04-06 Aspirateur de poussières électrique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP89106043.6 Division 1989-04-06

Publications (3)

Publication Number Publication Date
EP0532057A2 true EP0532057A2 (fr) 1993-03-17
EP0532057A3 EP0532057A3 (en) 1993-06-02
EP0532057B1 EP0532057B1 (fr) 1997-09-17

Family

ID=26120049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92116903A Expired - Lifetime EP0532057B1 (fr) 1988-04-29 1989-04-06 Sac à poussières

Country Status (3)

Country Link
EP (1) EP0532057B1 (fr)
AT (1) ATE91864T1 (fr)
GR (1) GR3025306T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5766283A (en) * 1993-12-03 1998-06-16 Vorwerk & Co. Interholding Gmbh Dust filter bag for a vacuum cleaner
EP1068828A1 (fr) * 1993-12-03 2001-01-17 Vorwerk & Co. Interholding GmbH Sac a poussière filtrant pour aspirateur
DE4434935B4 (de) * 1994-09-28 2004-12-30 Vorwerk & Co. Interholding Gmbh Staubfilterbeutel für einen Staubsauger
EP2025276A2 (fr) 2007-08-02 2009-02-18 VORWERK & CO. INTERHOLDING GmbH Aspirateur doté d'un sac filtrant installé à l'intérieur et sac filtrant correspondant
GB2496270B (en) * 2011-11-03 2015-04-08 Techtronic Floor Care Tech Ltd Disposable bag and a disposable bag mount bracket for an upright vacuum cleaner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4631411A1 (fr) * 2024-04-08 2025-10-15 Wolf PVG GmbH & Co. KG Sac d'aspirateur et procédé de fabrication d'un sac d'aspirateur

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7832780U1 (de) * 1978-11-04 1979-03-01 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Halteplatte fuer staubsaugerfilterbeutel
DE8320697U1 (de) * 1983-07-19 1983-11-03 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Filterkassette fuer handstaubsauger
DE3714773A1 (de) * 1987-05-04 1988-12-01 Vorwerk Co Interholding Anorndung von filterbeuteln in elektro-staubsaugern
ES2023444B3 (es) * 1987-05-04 1992-01-16 Vorwerk Co Interholding Aspirador electronico

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5766283A (en) * 1993-12-03 1998-06-16 Vorwerk & Co. Interholding Gmbh Dust filter bag for a vacuum cleaner
EP1068828A1 (fr) * 1993-12-03 2001-01-17 Vorwerk & Co. Interholding GmbH Sac a poussière filtrant pour aspirateur
DE4434935B4 (de) * 1994-09-28 2004-12-30 Vorwerk & Co. Interholding Gmbh Staubfilterbeutel für einen Staubsauger
EP2025276A2 (fr) 2007-08-02 2009-02-18 VORWERK & CO. INTERHOLDING GmbH Aspirateur doté d'un sac filtrant installé à l'intérieur et sac filtrant correspondant
EP2025276A3 (fr) * 2007-08-02 2010-05-05 VORWERK & CO. INTERHOLDING GmbH Aspirateur doté d'un sac filtrant installé à l'intérieur et sac filtrant correspondant
CN101357050B (zh) * 2007-08-02 2012-05-16 沃维克股份有限公司 内设过滤袋的吸尘器及用于此的过滤袋
GB2496270B (en) * 2011-11-03 2015-04-08 Techtronic Floor Care Tech Ltd Disposable bag and a disposable bag mount bracket for an upright vacuum cleaner
GB2520211A (en) * 2011-11-03 2015-05-13 Techtronic Floor Care Tech Ltd Disposable bag and a disposable bag mount bracket for an upright vacuum cleaner
US9074622B2 (en) 2011-11-03 2015-07-07 Techtronic Floor Care Technology Limited Disposable bag and a disposable bag mount bracket for an upright vacuum cleaner
GB2520211B (en) * 2011-11-03 2015-08-12 Techtronic Floor Care Tech Ltd Disposable bag and a disposable bag mount bracket for an upright vacuum cleaner

Also Published As

Publication number Publication date
ATE91864T1 (de) 1993-08-15
EP0532057B1 (fr) 1997-09-17
EP0532057A3 (en) 1993-06-02
GR3025306T3 (en) 1998-02-27

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