EP2266449B1 - Einlassmittel mit mehreren Öffnungen - Google Patents

Einlassmittel mit mehreren Öffnungen Download PDF

Info

Publication number
EP2266449B1
EP2266449B1 EP20100158919 EP10158919A EP2266449B1 EP 2266449 B1 EP2266449 B1 EP 2266449B1 EP 20100158919 EP20100158919 EP 20100158919 EP 10158919 A EP10158919 A EP 10158919A EP 2266449 B1 EP2266449 B1 EP 2266449B1
Authority
EP
European Patent Office
Prior art keywords
inlet means
shutter
flow paths
vacuum
flow path
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.)
Not-in-force
Application number
EP20100158919
Other languages
English (en)
French (fr)
Other versions
EP2266449A2 (de
EP2266449A3 (de
Inventor
Joung-Soo Park
Heung-Jun Park
Sung-Tae Joo
Min-Ha Kim
Dong-Houn Yang
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP2266449A2 publication Critical patent/EP2266449A2/de
Publication of EP2266449A3 publication Critical patent/EP2266449A3/de
Application granted granted Critical
Publication of EP2266449B1 publication Critical patent/EP2266449B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L9/02—Nozzles
    • 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
    • A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action

Definitions

  • the following description relates to a vacuum cleaner, and more particularly, to an inlet means for use in a vacuum cleaner, and a vacuum cleaner having the same.
  • vacuum cleaners such as upright cleaners, canister cleaners, or steam cleaners generate a vacuum within a cleaner body by driving a fan motor unit.
  • the vacuum generated within the vacuum cleaner body is applied as a suction force to draw in an external air stream along with suspended substances such as dust from a surface being cleaned, through an inlet means which may comprise a brush assembly or a nozzle.
  • an inlet means which may comprise a brush assembly or a nozzle.
  • the suspended substances are separated from the air stream and collected.
  • the air stream, free of suspended substances, is then discharged out of the vacuum cleaner.
  • Korean Patent No. 0621259 ('prior art document 1'), Korean Utility Model Publication No. 1999-0029151 ('prior art document 2'), Japan Patent Publication No. 2000-217753 ('prior art document 3'), Japan Utility Model Publication No. S62-184847 ('prior art document 4'), and Japan Patent Publication No. 2008-086549 ('prior art document 5').
  • Prior art documents 1 to 5 disclose inlet means such as a suction device, a suction brush, or the like, which has an integrated valve and a secondary flow path formed when the valve is open.
  • the valve is opened when an internal vacuum pressure of the inlet means increases during operation of the vacuum cleaner, thereby letting in an air stream through the secondary flow path and thereby maintaining the force between the inlet means and the surface being cleaned.
  • valve and the secondary flow path are integral with one another, if the secondary flow path is blocked by debris, the air stream does not pass efficiently through the secondary flow path.
  • NL-1030311 discloses inlet means for a vacuum cleaner having the features of the precharacterising portion of claim 1.
  • the present invention has been made to overcome the above shortcomings and accordingly, it is an object of the present invention to provide an inlet means with multiple suction ports in which secondary flow paths are opened and closed even when the secondary flow paths are blocked with debris, thereby ensuring that the suction between the inlet means and the surface being cleaned remains relatively constant.
  • a first aspect of the invention provides (200) for inlet means for a vacuum cleaner, comprising: an upper casing (201) comprising a secondary suction port (231) formed therein; a lower casing (202) engaged with the upper casing, and comprising a main suction port (203) formed therein; a shutter (240) formed in the upper casing; and a secondary flow path (230) formed between the upper casing and the lower casing, wherein the shutter (240) opens the secondary suction port when the vacuum at a lower area of the lower casing is increased characterised by further comprising: a shutter flow path (210) formed between the upper casing and the lower casing, wherein the shutter (240) closes an upper end of the shutter flow path (210) when the vacuum at a lower area of the lower casing (202) is increased.
  • the lower casing (202) may further comprise a guide hole (212) which places the lower area in fluid communication with the shutter flow path (210) of the inlet means.
  • the inlet means may further comprise an upper opening portion (211) which places the secondary flow path (230) in fluid communication with the shutter flow path (210).
  • At least two secondary flow paths (230) and at least two shutter flow paths (210) may be formed in the inlet means.
  • a vacuum cleaner comprising:
  • the vacuum cleaner may further comprise a guide hole (212) to place an upper opening portion (211) in fluid communication with the lower area of the inlet means, wherein the upper opening portion (211) may place the shutter flow path in fluid communication with the secondary flow path.
  • nozzle attachment for a vacuum cleaner comprising:
  • the valve may be activated by a pressure in said first passage.
  • the nozzle attachment may further comprise a biasing means, wherein a reduction in pressure in said first passage may act against said biasing means.
  • FIG. 1 is a perspective view of a vacuum cleaner having an inlet means according to an embodiment of the present invention
  • FIG. 2 is a perspective view of the inlet means of FIG. 1 .
  • a vacuum cleaner 100 includes a main body 110, inlet means 200, and an extension tube assembly 120 to connect the main body 110 and the inlet means 200.
  • the main body 110 houses therein a suspended substance collecting portion (not illustrated) such as a dust bag or a dust-collecting unit, a fan motor unit (not illustrated), and a filter unit (not illustrated).
  • a suspended substance collecting portion such as a dust bag or a dust-collecting unit
  • a fan motor unit not illustrated
  • a filter unit not illustrated
  • the extension tube assembly 120 may include an extension tube 121, a handle 123, and a hose 122.
  • the extension tube 121 may be applied as a telescopic tube or extensible tube which is variable in length, and connected to the inlet means 200.
  • the handle 123 may include a switch which controls the vacuum cleaner 100 by starting or stopping the vacuum cleaner 100, thereby enabling a user to move the inlet means 200 along the surface being cleaned using the handle 123 and clean the surface.
  • the hose 122 may connect the handle 123 to the main body 110, allowing an air stream from the inlet means 200 into the main body 110.
  • the inlet means 200 may be connected to the extension tube 121, to draw in suspended substances off the surface being cleaned along with the air stream, using a suction force generated in the main body 110.
  • the inlet means 200 includes shutters 240 opened by the internal vacuum pressure and which allow an air stream from an upper portion of the inlet means 200 thereinto; secondary flow paths 230 (see FIGS. 4 and 5 ) which are opened and closed by the shutters 240; and shutter flow paths 210 in fluid communication with the secondary flow paths 230 to transfer the vacuum pressure of a lower area 255 (see FIG. 4 ) of the inlet means 200 to the secondary flow paths 230.
  • the inlet means 200 is capable of not only maintaining a constant suction between the inlet means 200 and the surface being cleaned, but also of drawing in dust floating in an upper portion of the inlet means 200.
  • the shutters 240 and secondary suction ports 231 which define upper open portions of the secondary flow paths 230, may be sized to facilitate smooth introduction of the dust or other suspended material from not only an upper portion, but also a lower portion, of the inlet means 200.
  • the inlet means 200 may draw in dust or other suspended material in the upper portion of the inlet means 200 and thereby provide an air purification function. By removing dust or other material suspended in the upper portion of the inlet means, the inlet means 200 reduces the amount of dust falling onto the surface being cleaned, thereby increasing cleaning efficiency.
  • FIGS. 3 to 5 illustrate the detailed structure of the inlet means 200 with the aforementioned functions, in which FIG. 3 is a bottom view of the inlet means 200 of FIG. 1 , FIG. 4 is a cross-section of the inlet means, cut along line IV-IV of the inlet means of FIG. 1 to illustrate the secondary flow path in a closed state, and FIG. 5 is a cross-section of the inlet means, cut along line IV-IV of the inlet means of FIG. 1 to illustrate the secondary flow path in an open state.
  • inlet means 200 The structure of the inlet means 200 will be explained in greater detail below with reference to FIGS. 1 to 5 .
  • the inlet means 200 includes an upper casing 201 and a lower casing 202.
  • the upper casing 201 includes secondary suction ports 231 (see FIGS. 4 and 5 ) extending to both sides from an upper central portion where the extension pipe 121 is attached, and shutters 240 each moveably connected to secondary suction ports 231 (see FIGS. 4 and 5 ).
  • One end of each shutter 240 close to the central portion of the upper casing 201 is pivotably connected to the upper casing 201 by a hinge 240a to open and close the secondary suction ports 231.
  • the shutters 240 are pivotally connected to the upper casing 201 via elastic members (not illustrated). Accordingly, if a vacuum pressure at a lower area of the inlet means 200 is decreased, the shutters 240 are returned to their original position by the recovery force of the elastic members to thereby close the secondary suction ports 231.
  • the lower casing 202 includes a main suction port 203 formed in the central portion and in fluid communication with the extension tube 121, guide holes 212 formed on both sides of the main suction port 203, and shutter flow paths 210 which connect secondary inlet means ports 232 of the secondary flow paths 230 and the guide hole 212 to interiors of the secondary flow paths 230.
  • the upper casing 201 and the lower casing 202 are connected to one another, defining spaces therebetween which serve as the secondary flow paths 230 and thereby constitute the inlet means 200.
  • the external air stream is introduced into the lower area 255 via the secondary suction ports 231, the secondary flow paths 230, and the secondary inlet means ports 232.
  • Upper opening portions 211 of the shutter flow paths 210 connect the secondary flow paths 230 under the shutters 240 to the shutter flow paths 210.
  • the vacuum cleaner 100 is operated, generating a vacuum therein.
  • the vacuum is applied as a suction force to the inlet means 200 so that the inlet means 200 draws in an external air stream along with dust from a surface being cleaned.
  • the user begins cleaning, moving the inlet means 200 along the surface being cleaned using the handle 123.
  • the vacuum formed in a lower portion causes the inlet means 200 to be pulled toward the surface being cleaned and accordingly, the space between the lower surface of the inlet means 200 and the surface being cleaned rapidly decreases, the amount of air introduced into the main suction port 203 of the inlet means 200 is decreased, and the vacuum at the lower area 255 of the inlet means 200 rapidly increases.
  • the increased vacuum is transmitted to the shutter flow paths 210 and the secondary flow paths 230 through the guide holes 212 and the secondary suction ports 232.
  • the increased vacuum of the shutter flow paths 210 and the secondary flow paths 230 is applied as a force which causes the shutters 240 to pivot downward from the upper casing 201.
  • the shutters 240 are pivoted towards the lower portion of the upper casing 201 to thereby open the secondary suction ports 231 and concurrently close the upper opening portions 211 of the shutter flow paths 210.
  • the vacuum at the lower area of the inlet means 200 is transmitted to the shutters 240 through the guide holes 212 and the shutter flow paths 210 and the air stream introduced into the secondary suction ports 231, the secondary flow paths 230, and the secondary inlet means ports 232 acts against the upper surfaces of the shutters 240. Accordingly, the shutters 240 keep the opening portions 211 in closed positions unless the vacuum decreases.
  • the vacuum at the lower area 255 of the inlet means 200 decreases, and the suction between the inlet means 200 and the surface being cleaned decreases. Accordingly, the user can clean even a soft surface such as a carpeted floor with ease.
  • the vacuum in the lower area 255 is transmitted to the shutters 240 through the guide holes 212. Accordingly, this helps ensure that the shutters 240 are kept open when the lower area 255 is under a relatively high vacuum. Blockage of the shutter flow paths 210 or the guide holes 212 is unlikely since the air stream from the upper portion is not introduced through the shutter flow paths 210 and the guide holes 212. Although some dust or other material suspended in the introduced air stream may be deposited on the secondary flow paths 230 or the like, it is unlikely that dust or other material would be deposited on the shutter flow paths 210.
  • this helps ensure that the shutters 240 open the secondary suction ports 231 if the lower area 255 of the inlet means 200 has an increased vacuum during the cleaning operation of the vacuum cleaner 100.
  • the suspended substances such as dust which may be deposited on the secondary flow paths 230 are usually removed by the drawn-in air stream.
  • the shutter flow paths 210 open and close the shutters 240 while the secondary flow paths 230, which are employed separately from the shutter flow paths 210, serve as passages through which an air stream from an upper portion of the inlet means 200 is introduced. Accordingly, this helps ensure that the shutters 240 are kept open and dust and other material, if deposited on the shutter flow paths 210, clean themselves.
  • the vacuum of the lower area 255 of the inlet means 200 may decrease below the amount where this overcomes the recovery force of the elastic members supporting the shutters 240.
  • the shutters 240 are returned to their original position by the recovery force of the elastic members, thereby closing the secondary suction ports 231.
  • the shutters 240 open the secondary suction ports 231 if the vacuum of the lower area 255 of the inlet means 200 increases above a predetermined value and closes the secondary suction ports 231 if the vacuum of the lower area 255 decreases below a predetermined value.
  • the lower area 255 of the inlet means 200 is kept under a constant vacuum, and the suction between the inlet means 200 and the surface being cleaned is kept constant.
  • the suctionbetween the inlet means 200 and the surface being cleaned can be adjusted by adjusting the modulus of elasticity of the elastic members.
  • the secondary flow paths 230 are opened and closed by the shutter flow paths 210, the secondary flow paths 230 are opened and closed effectively even when the movement of air current is impeded in the secondary flow paths 230 due to blockage of the secondary flow paths 230 or other paths by deposited dust or other material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Claims (4)

  1. Einlassmittel (200) für einen Staubsauger, umfassend:
    ein oberes Gehäuse (201), das eine darin ausgebildete Nebensaugöffnung (231) umfasst,
    ein unteres Gehäuse (202), das mit dem oberen Gehäuse in Eingriff steht und eine darin ausgebildete Hauptsaugöffnung (203) umfasst,
    eine Klappe (240), die im oberen Gehäuse ausgebildet ist, und
    einen Nebenströmungspfad (230), der zwischen dem oberen Gehäuse und dem unteren Gehäuse ausgebildet ist, wobei
    die Klappe (240) die Nebensaugöffnung öffnet, wenn das Vakuum am unteren Bereich des unteren Gehäuses erhöht wird,
    dadurch gekennzeichnet, dass es ferner umfasst:
    einen Klappenströmungspfad (210), der zwischen dem oberen Gehäuse und dem unteren Gehäuse ausgebildet ist, wobei
    die Klappe (240) ein oberes Ende des Klappenströmungspfads (210) schließt, wenn das Vakuum am unteren Bereich des unteren Gehäuses (202) erhöht wird.
  2. Einlassmittel nach Anspruch 1, bei dem das untere Gehäuse (202) ferner ein Führungsloch (212) umfasst, das den unteren Bereich in Fließverbindung mit dem Klappenströmungspfad (210) des Einlassmittels bringt.
  3. Einlassmittel nach Anspruch 2, ferner umfassend ein oberes Öffnungsteil (211), das den Nebenströmungspfad (230) in Fließverbindung mit dem Klappenströmungspfad (210) bringt.
  4. Einlassmittel nach einem der vorherigen Ansprüche, bei dem im Einlassmittel wenigstens zwei Nebenströmungspfade (230) und wenigstens zwei Klappenströmungspfade (210) ausgebildet sind.
EP20100158919 2009-06-22 2010-04-01 Einlassmittel mit mehreren Öffnungen Not-in-force EP2266449B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090055308A KR101573740B1 (ko) 2009-06-22 2009-06-22 다중 흡입구를 구비한 진공청소기의 흡입수단 및 상기 흡입수단을 구비한 진공청소기

Publications (3)

Publication Number Publication Date
EP2266449A2 EP2266449A2 (de) 2010-12-29
EP2266449A3 EP2266449A3 (de) 2013-07-24
EP2266449B1 true EP2266449B1 (de) 2015-01-28

Family

ID=42352906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100158919 Not-in-force EP2266449B1 (de) 2009-06-22 2010-04-01 Einlassmittel mit mehreren Öffnungen

Country Status (3)

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EP (1) EP2266449B1 (de)
KR (1) KR101573740B1 (de)
RU (1) RU2419374C1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102302198B1 (ko) 2018-11-12 2021-09-14 삼성전자주식회사 청소 장치 및 그 제어 방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6182547U (de) * 1984-11-02 1986-05-31
JPS62184847U (de) 1986-05-15 1987-11-24
JPH1196362A (ja) 1997-09-17 1999-04-09 Fujitsu Ltd 印影照合装置
JP2000217753A (ja) 1999-02-02 2000-08-08 Sharp Corp 電気掃除機用吸込口体
KR100621259B1 (ko) 2000-02-01 2006-09-13 엘지전자 주식회사 진공 청소기
GB2383257B (en) * 2001-12-21 2005-08-10 Dyson Ltd Cleaner head for a vacuum cleaner
JP3960871B2 (ja) * 2002-07-11 2007-08-15 三洋電機株式会社 床用吸込具
GB2393383B (en) * 2002-09-24 2005-12-28 Dyson Ltd A vacuum cleaning head
JP2005000266A (ja) * 2003-06-10 2005-01-06 Toshiba Tec Corp 吸込口体及び電気掃除機
NL1030311C1 (nl) * 2005-10-31 2007-05-03 Geert Kerssies Mondstuk voor een stofzuiger.
JP2008086549A (ja) * 2006-10-02 2008-04-17 Matsushita Electric Ind Co Ltd 電気掃除機用吸込具およびそれを用いた電気掃除機

Also Published As

Publication number Publication date
EP2266449A2 (de) 2010-12-29
RU2419374C1 (ru) 2011-05-27
EP2266449A3 (de) 2013-07-24
KR101573740B1 (ko) 2015-12-03
KR20100137080A (ko) 2010-12-30

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