EP0184113B1 - Staubsauger - Google Patents

Staubsauger Download PDF

Info

Publication number
EP0184113B1
EP0184113B1 EP85114980A EP85114980A EP0184113B1 EP 0184113 B1 EP0184113 B1 EP 0184113B1 EP 85114980 A EP85114980 A EP 85114980A EP 85114980 A EP85114980 A EP 85114980A EP 0184113 B1 EP0184113 B1 EP 0184113B1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
air
filter
shroud
cleaner according
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
Application number
EP85114980A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0184113A2 (de
EP0184113A3 (en
Inventor
Gernot Jacob
Leon Radom
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.)
Progress Elektrogeraete GmbH
Original Assignee
Progress Elektrogeraete 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 Progress Elektrogeraete GmbH filed Critical Progress Elektrogeraete GmbH
Priority to AT85114980T priority Critical patent/ATE55687T1/de
Publication of EP0184113A2 publication Critical patent/EP0184113A2/de
Publication of EP0184113A3 publication Critical patent/EP0184113A3/de
Application granted granted Critical
Publication of EP0184113B1 publication Critical patent/EP0184113B1/de
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
    • A47L9/12—Dry filters
    • A47L9/122—Dry filters flat
    • 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
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping

Definitions

  • the invention relates to a vacuum cleaner according to the preamble of claim 1.
  • the air escaping from the vacuum cleaner housing causes some problems.
  • the air drawn in by the blower which carries a considerable amount of dust when the vacuum cleaner is actuated, is normally passed completely through the dust bag, in which dust particles of a certain size are retained, but contains it through the dust bag into the engine compartment flowing air and then exiting the vacuum cleaner housing contains a considerable amount of tiny particles that can have harmful effects on people. This is particularly the case when, in the known vacuum cleaners, the air usually escapes at a considerable pressure from closely spaced air slots, which causes additional dust swirling.
  • a vacuum cleaner is known in which a cap provided with a large number of air outlet openings is placed over the motor, so that the air exits into the rear housing space under expansion.
  • a filter arranged over the entire cross section of the vacuum cleaner housing, through which the air passes in the direction of the air outlet openings located on the rear of the housing. It is particularly disadvantageous that the expansion of the air has largely taken place before the filter, so that even slight contamination should lead to a reduction in the suction power. For this reason, the filter was also arranged over the entire cross-section of the housing, which makes the filter extremely expensive. In addition, the filter was arranged at a point where the replacement of the filter is associated with considerable difficulties for an operator.
  • DE-OS 29 45 176 describes a vacuum cleaner in which the space located behind the motor fan unit is divided so that the air is deflected several times on its way from the motor fan unit to the air outlet openings arranged on the bottom of the housing. After the first deflection, the air is completely expanded, passes through air outlet openings in the engine blower compartment, enters a space located at the bottom of the housing and passes through a filter before being released into the environment. In addition to the fact that the air has expanded completely before it passes the filter, the filter fills the entire floor area, so that it must be unusually large and therefore expensive. The location of the attachment is associated with the same replacement difficulties for the operator.
  • the object of the invention is to improve a vacuum cleaner according to the preamble of claim 1 such that at the same time an optimal filtering of particles from the air escaping into the environment is ensured in a cost-effective manner.
  • the motor is enclosed by an airtight hood attached to the blower, which has an air outlet opening and otherwise encloses the motor in an airtight manner.
  • an additional closed space is formed within the engine compartment, into which the blower conveys the intake air.
  • the sucked-in air emerges from this hood through air outlet openings provided for this purpose, as a result of which it enters the intermediate space between the vacuum cleaner housing and the hood.
  • a circumferential frame comprising the air outlet openings is fitted, into which an air filter with an airtight connection can be inserted and arranged in such a way that the air flowing through the air outlet openings flows through it.
  • the escaping air is thus practically freed from any pollutants, so that after it emerges from the vacuum cleaner it cannot have any detrimental effects on the environment.
  • the air outlet openings can be arranged close to each other, so that the air can be passed through a relatively small air filter without this having an adverse effect on the environment of the vacuum cleaner, as the concentrated outflow from the hood and at the Outlet cleaned air does not leave the vacuum cleaner with the relatively high pressure, but first enters the space between the vacuum cleaner housing and the hood. In this intermediate room, the cleaned air is first distributed and calmed down.
  • the filter is enclosed in a cassette frame, which makes it easier to handle.
  • a cassette frame On the outside of the hood there is a circumferential frame surrounding the air outlet openings, into which the filter cassette frame with an airtight connection can be inserted.
  • the frame is expediently formed on one side of the hood, the filter being insertable vertically upwards from the underside of the housing, while in the case of a floor vacuum cleaner Frame can be formed on the underside of the hood and the filter is inserted horizontally.
  • the filter is expediently supported in the frame by strips, so that it is not bent by the air flowing through it with considerable pressure, which could otherwise lead to its damage.
  • the filter is expediently a fine filter, and a handle is formed on the cassette frame, with which the insertion and removal of the filter can be carried out particularly easily.
  • the air outlet openings of the vacuum cleaner housing are expediently formed in such a large number distributed over considerable areas of the vacuum cleaner housing that the air emerges from the vacuum cleaner housing at a low speed and with a wide distribution.
  • the air emerging from the vacuum cleaner housing with low pressure and good distribution is practically imperceptible even in the immediate vicinity of the vacuum cleaner and cannot cause any annoying dust turbulence.
  • a shut-off device is formed in the hood wall, which is opened at a predetermined excess pressure in the hood, so that the sucked-in air can flow out of the hood. Since the user of a vacuum cleaner is not always informed about the condition of the filter through which the air has to pass if it wants to leave the vacuum cleaner housing or the hood, it can easily happen that this filter is not replaced in time. With an increasingly clogged filter, however, the pressure in the hood adjoining the blower increases, as a result of which the suction power of the vacuum cleaner is increasingly reduced. Finally, when the filter is completely clogged, the blower can no longer suck air into the hood, so that the vacuum cleaner can no longer perform its function in this state.
  • a user who does not pay attention to the filter in the vacuum cleaner can then get the impression that the entire device is defective.
  • This problem is solved by the arrangement of a shut-off device in the hood wall, which is opened at a predetermined pressure as a result of a filter which has been clogged to a certain degree, so that the sucked-in air can flow out of the hood.
  • the emerging air is not cleaned, but the functionality of the vacuum cleaner is retained.
  • the shut-off device is expediently a flap formed in the hood wall. This flap disengages at a certain overpressure and can be closed again by the operator, so that all the air is cleaned again after the filter has been replaced.
  • the design of the shut-off device as a flap is particularly simple and inexpensive.
  • the opening of the flap is advantageously indicated optically, electrically or acoustically.
  • the flap can be painted in a signal color and arranged so that its open state is visible through air outlet openings in the vacuum cleaner housing. This signal then gives the operator of the vacuum cleaner the hint that the filter must be changed.
  • an electrical signal can also be provided, for example in the form of an illuminated lamp, or an acoustic signal which is generated, for example, by the air escaping through the opened flap in the form of a whistle.
  • the display of the opening of the flap can reliably prevent a user familiar with the vacuum cleaner from remaining uninformed about the inoperable state of the filter.
  • a bearing ring for the blower is integrally formed on the hood, which is connected to the hood via webs.
  • the hood expediently consists of a material with elastomeric components.
  • the vacuum cleaner housing can be at least partially perforated.
  • the engine compartment of a handheld vacuum cleaner is shown.
  • the engine compartment is enclosed by the rear part of the vacuum cleaner housing 1 and contains in its end section facing the (not shown) front dust compartment a blower 2 which draws air through the dust compartment and into the engine compartment.
  • the motor 3, which drives the fan, is arranged behind the fan 2.
  • the motor 3 is enclosed in a hood 4 which connects to the blower in an airtight manner. This creates a closed space containing the motor at the rear of the blower 2, from which the air can only escape at outlet openings provided for this purpose.
  • the hood made of an elastomeric plastic also serves as storage for the engine so that an additional bearing ring in the rear area of the engine is not required.
  • webs 5 are formed, which are connected to a bearing ring 6 for the blower 2, the bearing ring 6, the webs 5 and the hood 4 being produced in one piece.
  • the hood 4 has through holes 7 in its rear upper region, through which the connecting cables 8 are passed such that the through holes are hermetically sealed.
  • a frame 9 is formed on the outside of one side of the hood 4, which for.
  • the filter 10 is inserted into the frame 9 from the bottom of the vacuum cleaner housing 1 by means of a handle 11 with which the filter is provided.
  • the filter 10 is supported by webs 12 so that it is not bent and damaged by the air flowing out at high pressure through air outlet openings 13 in the wall of the hood 4.
  • the air flowing out through the air outlet openings 13 must inevitably flow through the filter 10 in order to be able to enter the space 14 between the vacuum cleaner housing 1 and the hood 4, where the air flowing out at high speed is distributed and calms down.
  • a flap 16 is formed which, when the back pressure in the hood 4 exceeds a certain value, is opened by this internal pressure. This prevents the vacuum cleaner from becoming inoperable by an approximately clogged filter 10, since in this case the air sucked into the engine compartment by the blower 2 can leave the hood through the opening opened by the opened flap.
  • Fig. 4 the rear part of the engine compartment of a cylinder vacuum cleaner is shown.
  • the frame 9 is formed on the underside of the hood 4, where it comprises the openings 13 in the hood wall.
  • the filter 10 is inserted horizontally from the rear of the vacuum cleaner housing 1 into the frame 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP85114980A 1984-11-30 1985-11-26 Staubsauger Expired - Lifetime EP0184113B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85114980T ATE55687T1 (de) 1984-11-30 1985-11-26 Staubsauger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3443837 1984-11-30
DE19843443837 DE3443837A1 (de) 1984-11-30 1984-11-30 Staubsauger

Publications (3)

Publication Number Publication Date
EP0184113A2 EP0184113A2 (de) 1986-06-11
EP0184113A3 EP0184113A3 (en) 1988-03-16
EP0184113B1 true EP0184113B1 (de) 1990-08-22

Family

ID=6251640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114980A Expired - Lifetime EP0184113B1 (de) 1984-11-30 1985-11-26 Staubsauger

Country Status (9)

Country Link
US (1) US4733429A (en(2012))
EP (1) EP0184113B1 (en(2012))
JP (1) JPS61135626A (en(2012))
AT (1) ATE55687T1 (en(2012))
AU (1) AU580115B2 (en(2012))
CA (1) CA1262605A (en(2012))
DE (2) DE3443837A1 (en(2012))
DK (1) DK539785A (en(2012))
NZ (1) NZ214328A (en(2012))

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01305916A (ja) * 1988-06-06 1989-12-11 Hitachi Ltd 電気掃除機
DE3904392A1 (de) * 1989-02-14 1990-08-16 Mauz & Pfeiffer Progress Staubsauger
JP3047984B2 (ja) * 1990-04-18 2000-06-05 株式会社日立製作所 電気掃除機
US5353469A (en) * 1992-07-01 1994-10-11 National Super Service Company Wet/dry vacuum cleaner with noise reducing housing structure
US5479676A (en) * 1994-05-12 1996-01-02 Electrolux Corporation Vacuum cleaner
US6085382A (en) 1997-01-10 2000-07-11 White Consolidated Industries, Inc. Air filtrating self-propelled upright vacuum cleaner
US5813085A (en) * 1997-02-25 1998-09-29 White Consolidated Industries, Inc. Motor isolation gasket for central vacuum
FR2767050B1 (fr) * 1997-08-08 1999-11-05 Thierry Andre Azemar Aspirateur en forme animale d'elephant a trompe multidirectionnelle
US6077032A (en) * 1998-07-16 2000-06-20 Felchar Manufacturing Corporation Housing assembly for a vacuum cleaner
DE19909543A1 (de) * 1999-03-04 2000-09-07 Bsh Bosch Siemens Hausgeraete Staubsauger
DE10200913A1 (de) * 2002-01-12 2003-07-24 Vorwerk Co Interholding Schnelllaufender Elektromotor
CA2476147C (en) * 2003-07-31 2008-06-03 Matsushita Electric Corporation Of America Motor enclosure for a vacuum cleaner
ITMI20040577A1 (it) * 2004-03-24 2004-06-24 Ametek Italia S R L Gruppo aspirante motorizzato a basso rumore per apparecchi di pulizia e apparecchio con esso
KR100725515B1 (ko) * 2005-12-15 2007-06-08 삼성광주전자 주식회사 모터 소음저감구조를 갖는 진공청소기
FR2902632B1 (fr) * 2006-06-27 2012-06-08 Seb Sa Aspirateur
KR100837362B1 (ko) * 2006-10-31 2008-06-12 삼성광주전자 주식회사 진공청소기용 모터의 소음저감장치
KR20090046052A (ko) * 2007-11-05 2009-05-11 삼성광주전자 주식회사 배기장치 및 이를 포함하는 진공청소기

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172743A (en) * 1965-03-09 Commercial vacuum cleaners
US2036694A (en) * 1933-04-04 1936-04-07 Electrolux Corp Vacuum cleaner
US2030366A (en) * 1933-11-04 1936-02-11 Grave Otto Electric vacuum cleaner
US2135036A (en) * 1935-11-08 1938-11-01 Electrolux Corp Vacuum cleaner
US2174443A (en) * 1935-11-29 1939-09-26 Electrolux Corp Vacuum cleaner
US2190470A (en) * 1937-10-27 1940-02-13 Electrolux Corp Vacuum cleaner
US2498063A (en) * 1946-09-07 1950-02-21 Hoover Co Suction cleaner
US2964777A (en) * 1957-03-20 1960-12-20 Electrolux Corp Vacuum cleaner and cordwinder combination
AU428539B2 (en) * 1968-09-04 1972-09-24 Matsushita Electric Industrial Co., Ltd Compact hand vacuum cleaner
DE7908622U1 (de) * 1979-03-27 1980-02-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Staubsauger
DE2945176A1 (de) * 1979-11-08 1981-05-14 Siemens AG, 1000 Berlin und 8000 München Staubsauger mit einem staubbeutelraum und axial hinter diesem angeordneten geblaeseaggregat

Also Published As

Publication number Publication date
US4733429A (en) 1988-03-29
DE3443837A1 (de) 1986-06-05
CA1262605A (en) 1989-11-07
AU580115B2 (en) 1989-01-05
DE3579297D1 (de) 1990-09-27
EP0184113A2 (de) 1986-06-11
ATE55687T1 (de) 1990-09-15
AU5040485A (en) 1986-06-05
DE3443837C2 (en(2012)) 1988-02-25
EP0184113A3 (en) 1988-03-16
DK539785D0 (da) 1985-11-21
DK539785A (da) 1986-05-31
JPS61135626A (ja) 1986-06-23
NZ214328A (en) 1988-02-12

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