US20050273970A1 - Suction head of vacuum cleaner - Google Patents

Suction head of vacuum cleaner Download PDF

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Publication number
US20050273970A1
US20050273970A1 US11/053,870 US5387005A US2005273970A1 US 20050273970 A1 US20050273970 A1 US 20050273970A1 US 5387005 A US5387005 A US 5387005A US 2005273970 A1 US2005273970 A1 US 2005273970A1
Authority
US
United States
Prior art keywords
suction
brush
suction duct
duct
suction head
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.)
Abandoned
Application number
US11/053,870
Other languages
English (en)
Inventor
Seong-Ho Cho
Myung-Keun Yoo
Young-Sok Nam
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Assigned to LG ELECTRONICS INC. reassignment LG ELECTRONICS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NAM, YOUNG-SOK, CHO, SEONG-HO, YOO, MYUNG-KEUN
Publication of US20050273970A1 publication Critical patent/US20050273970A1/en
Abandoned 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
    • A47L9/02—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
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0411—Driving means for the brushes or agitators driven by electric motor
    • 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
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0483—Reciprocating or oscillating tools, e.g. vibrators, agitators, beaters

Definitions

  • the present invention relates to a suction head of a vacuum cleaner, and more particularly, to a suction head of a vacuum cleaner capable of smoothly sucking dust.
  • an upright type vacuum cleaner in accordance with the conventional art comprises: a body 1 having an accommodation space therein; a handgrip 6 installed at an upper side of the body 1 ; a fan motor 2 installed in the body 1 and generating a suction force; a filter 3 arranged at a suction side of the fan motor 2 and filtering dust; a dust chamber 4 for accommodating the filter 3 and dust filtered by the filter 3 ; and a suction head 5 connected to the dust chamber 4 by a connection hose 7 , for sucking external dust by an operation of the fan motor 2 .
  • the suction head 5 includes: a housing 10 provided with a suction port 11 having a structure opened towards a floor; a suction duct 14 for collecting dust sucked by the suction port 11 ; a connection pipe 15 for connecting the suction duct 14 and the connection hose 7 ; a brush 13 rotatably installed at an inner side of the suction port 11 and having a plurality of bristles 12 at an outer surface thereof, for collecting dust on a floor with being rotated; a driving motor 16 for providing a driving force to rotate the brush 13 ; and a rotational force transmitting mechanism for transmitting a rotational force of the driving motor 16 to the brush 13 .
  • the rotational force transmitting mechanism is composed of a driving pulley 17 connected to a motor shaft of the driving motor 16 , a driven pulley 18 installed at an outer circumference of the brush 13 , and a belt 19 for connecting the driving pulley 17 and the driven pulley 18 .
  • the brush 13 is rotated by 360° in a single direction. According to this, the bristles 12 of the brush 13 brush the floor in a single direction thereby to have a limitation in brushing the floor.
  • an object of the present invention is to provide a suction head of a vacuum cleaner capable of enhancing a cleaning function by constructing a brush installed in a suction port to reciprocatingly rotate within a predetermined angle.
  • Another object of the present invention is to provide a suction head of a vacuum cleaner capable of properly sucking brushed dust into a body by constructing a brush to be respectively provided with a suction duct at both sides of a brushing direction of a floor.
  • a suction head of a vacuum cleaner comprising: a housing having a suction port through which dust on a floor is sucked by an operation of a fan motor; a brush rotatably installed in the suction port and having a plurality of bristles arranged in a longitudinal direction thereof; a brush driving device for reciprocatingly rotating the brush forwardly and backwardly within a range of a predetermined angle; a first suction duct having an inlet positioned corresponding to a direction of dust movement when the brush rotates in a forward direction; and a second suction duct having an inlet positioned corresponding to a direction of dust movement when the brush rotates in a backward direction.
  • FIG. 1 is a perspective view showing an upright type vacuum cleaner in accordance with the conventional art
  • FIG. 2 is a cross-section view showing a suction head of the vacuum cleaner in accordance with the conventional art
  • FIG. 3 is a perspective view showing an upright type vacuum cleaner according to the present invention.
  • FIG. 4 is a cross-section view showing a suction head of the vacuum cleaner according to the present invention.
  • FIG. 5 is a perspective view showing a brush and a brush driving device provided at the suction head of the vacuum cleaner according to the present invention
  • FIG. 6 is a frontal view showing the suction head of the vacuum cleaner according to the present invention.
  • FIG. 7 is a sectional view taken along line VII-VII of FIG. 6 ;
  • FIGS. 8 and 9 are sectional views showing an operation state of the suction head of the vacuum cleaner according to the present invention.
  • an upright type vacuum cleaner comprises: a body 1 having an accommodation space therein; a handgrip 6 installed at an upper side of the body 1 ; a fan motor 2 installed in the body 1 and generating a suction force; a filter 3 arranged at a suction side of the fan motor 2 and filtering dust; a dust chamber 4 for accommodating the filter 3 and dust filtered by the filter 3 ; and a suction head 100 connected to the dust chamber 4 by a connection hose 7 , for sucking external dust by an operation of the fan motor 2 .
  • the suction head 100 includes: a housing 110 provided with a suction port 20 having a structure opened towards a floor; a cylindrical brush 30 rotatably installed in the suction port 20 and having a plurality of bristles 31 arranged in a longitudinal direction thereof; a brush driving device 40 for reciprocatingly rotating the brush 30 forwardly and backwardly within a range of a predetermined angle; a first suction duct 50 having an inlet 51 positioned corresponding to a direction of dust movement when the brush 30 rotates in a forward direction; a second suction duct 60 having an inlet 61 positioned corresponding to a direction of dust movement when the brush 30 rotates in a backward direction; and a connection pipe 115 for connecting the first suction duct 50 and the second suction duct 60 to the connection hose 7 .
  • the bristles 31 are uniformly installed on the brush 30 in a longitudinal direction of the brush 30 as a plurality of rows.
  • the brush driving device 40 is composed of: a driving motor 41 for providing a driving force; and a driving force transmitting unit 42 for transmitting a driving force of the driving motor 41 to the brush 30 so that the brush 30 can be reciprocatingly rotated within a range of a predetermined angle.
  • the driving force transmitting unit 42 is composed of: a rotary link 44 fixed to a motor shaft 43 of the driving motor 41 and coaxially rotated together with the motor shaft 43 ; a hinge bracket 45 installed at one side of an outer circumferential surface of the brush 30 ; and a connecting rod 46 of which one end is hingedly connected to the rotary link 44 at a position eccentric from a rotation center of the rotary link 44 and of which another end is hingedly connected to the hinge bracket 45 thus to perform an angular reciprocating motion by a rotation of the rotary link 44 .
  • the driving force transmitting unit 42 converts a rotation motion of the motor shaft 43 of the driving motor 41 into a forward reciprocating rotation and a backward reciprocating rotation of the brush 30 .
  • the inlet 51 of the first suction duct 50 is arranged at a rear side of the brush 30 and extended to a rear side of the housing 110 , and an outlet 52 of the first suction duct 50 is connected to the connection pipe 115 .
  • the first suction duct 50 serves as a flow path of dust brushed by the bristles 31 thus to be moved to the rear side of the suction port 20 .
  • the inlet 51 of the first suction duct 50 is curvedly formed toward the suction port 20 for more effective suction of air.
  • the inlet 61 of the second suction duct 60 is arranged to be opened towards a floor at the front side of the brush 30 and is extended along an upper circumference of the suction port 20 , and an outlet 62 of the second suction duct 60 is connected to the first suction duct 50 .
  • the second suction duct 60 serves as a flow path of dust brushed by the bristles 31 thus to be moved to the front side of the suction port 20 .
  • a width in right and left directions of the inlet 61 of the second suction duct 60 is substantially same as a width in right and left directions of the suction port 20 in order to increase an area of a duct into which dust is sucked.
  • a width in right and left directions of the second suction duct 60 is gradually decreased from the inlet 61 towards the outlet 62 . According to this, a width in front and rear directions of the suction duct 60 is gradually decreased towards both sides of the second suction duct 60 (refer to FIG. 4 ).
  • a guide portion 70 is formed at the outlet 62 of the second suction duct 60 , for guiding air passing through the second suction duct 60 toward the first suction duct 50 .
  • the guide portion 70 maintains constant pressure and regular flow of air which flows from the second suction duct 60 to the first suction duct 50 .
  • the guide portion 70 may be protruded from an inner wall of the second suction duct 60 , and the thickness of the guide portion 70 becomes smaller toward the first suction duct 50 . It is preferred that both surfaces 72 and 74 of the guide portion 70 , the surfaces 72 and 74 facing the first and second suction ducts 50 and 60 are curvedly formed.
  • a rotational force is generated at the driving motor 41 .
  • the rotational force of the driving motor 41 is transmitted to the brush 30 through the driving force transmitting unit 42 , the brush 30 is reciprocatingly rotated within a range of a predetermined angle.
  • the bristles 31 brush dust on the floor towards the front side of the suction port 20 . According to this, most of brushed dust is introduced into the inlet 61 of the second suction duct 60 arranged at the front side of the suction port 20 . Then, the dust flows along the second suction duct 60 , and is introduced into the first suction duct 50 through the outlet 62 of the second suction duct 60 .
  • the dust introduced into the first suction duct 50 and the second suction duct 60 is introduced into the connection pipe 115 , and then is introduced into the dust chamber 4 of the body 1 through the connection hose 7 .
  • the dust filtered by the filter 3 inside the dust chamber 4 remains in the dust chamber 4 , and the air filtered by the filter 3 is exhausted to outside of the body 1 .
  • the suction head 100 of the vacuum cleaner according to the present invention is constructed so that the brush 30 can be reciprocatingly rotated within a range of a predetermined angle. According to this, an entire area occupied by the suction head 100 can be evenly brushed.
  • first suction duct 50 and the second suction duct 60 for introducing dust are respectively provided at both sides of a direction that the brush 30 brushes the floor. According to this, brushed dust can be smoothly sucked into the body 1 .
  • the width of right and left directions of the second suction duct 60 arranged at the front side of the suction port 20 is substantially same as the width of right and left directions of the suction port 20 , and the width of right and left directions of the second suction duct 60 is gradually decreased from the inlet 61 towards the outlet 62 . According to this, the entire region that the second suction duct 60 passes can be smoothly cleaned by using a proper suction force.
US11/053,870 2004-06-12 2005-02-10 Suction head of vacuum cleaner Abandoned US20050273970A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040043306A KR100595558B1 (ko) 2004-06-12 2004-06-12 진공청소기의 흡입헤드
KR43306/2004 2004-06-12

Publications (1)

Publication Number Publication Date
US20050273970A1 true US20050273970A1 (en) 2005-12-15

Family

ID=34975355

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/053,870 Abandoned US20050273970A1 (en) 2004-06-12 2005-02-10 Suction head of vacuum cleaner

Country Status (4)

Country Link
US (1) US20050273970A1 (zh)
EP (1) EP1604602B1 (zh)
KR (1) KR100595558B1 (zh)
CN (1) CN100353902C (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050273971A1 (en) * 2004-06-12 2005-12-15 Lg Electronics Inc. Suction head of vacuum cleaner
US7962997B2 (en) 2006-03-15 2011-06-21 Lg Electronics Inc. Suction head for mobile robot
US20130167321A1 (en) * 2007-02-13 2013-07-04 Samsung Electronics Co., Ltd. Upright type cleaner
CN113534573A (zh) * 2021-06-02 2021-10-22 重庆科技学院 一种具有自清洁功能的工业相机防护装置
US11291345B2 (en) 2018-08-27 2022-04-05 Techtronic Floor Care Technology Limited Floor cleaner

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013050906A1 (en) 2011-10-03 2013-04-11 Koninklijke Philips Electronics N.V. Floor nozzle for vacuum cleaner
CN103494582A (zh) * 2013-09-30 2014-01-08 樊书印 一种微型吸尘器
DE102020213579B4 (de) 2020-10-29 2022-09-08 BSH Hausgeräte GmbH Reinigungsvorrichtung
EP4162851A1 (en) * 2021-10-06 2023-04-12 Versuni Holding B.V. Direction of rotation of a brush in a suction head

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1470984A (en) * 1923-10-16 Signaling circuits
US1773961A (en) * 1923-03-24 1930-08-26 Clifford C Dance Vacuum sweeper
US2077958A (en) * 1930-05-28 1937-04-20 Hoover Co Suction cleaner
US4426751A (en) * 1982-01-21 1984-01-24 Whirlpool Corporation Vacuum cleaner nozzle with double brush
US4430768A (en) * 1982-03-24 1984-02-14 Novinger Harry E Agitator structure for suction cleaners
US5398373A (en) * 1993-01-04 1995-03-21 Bissell Inc. Combination vacuum cleaner and water extractor power foot
US5901411A (en) * 1996-01-23 1999-05-11 Sharp Kabushiki Kaisha Suction tool for an electric vacuum cleaner
US20050015922A1 (en) * 2003-07-24 2005-01-27 Lim Jun-Young Suction head for vacuum cleaner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB344713A (en) * 1929-04-30 1931-03-12 Willy Lehmann Improvements in and connected with vacuum cleaners
US3688338A (en) * 1970-04-27 1972-09-05 Borst & Penselfabriken Ab Carpet cleaning apparatuses
EP0553897A3 (en) * 1990-01-24 1993-12-29 Black & Decker Inc Vacuum cleaners

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1470984A (en) * 1923-10-16 Signaling circuits
US1773961A (en) * 1923-03-24 1930-08-26 Clifford C Dance Vacuum sweeper
US2077958A (en) * 1930-05-28 1937-04-20 Hoover Co Suction cleaner
US4426751A (en) * 1982-01-21 1984-01-24 Whirlpool Corporation Vacuum cleaner nozzle with double brush
US4430768A (en) * 1982-03-24 1984-02-14 Novinger Harry E Agitator structure for suction cleaners
US5398373A (en) * 1993-01-04 1995-03-21 Bissell Inc. Combination vacuum cleaner and water extractor power foot
US5901411A (en) * 1996-01-23 1999-05-11 Sharp Kabushiki Kaisha Suction tool for an electric vacuum cleaner
US6189180B1 (en) * 1996-01-23 2001-02-20 Sharp Kabushiki Kaisha Suction tool for an electric vacuum cleaner
US20050015922A1 (en) * 2003-07-24 2005-01-27 Lim Jun-Young Suction head for vacuum cleaner

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050273971A1 (en) * 2004-06-12 2005-12-15 Lg Electronics Inc. Suction head of vacuum cleaner
US7962997B2 (en) 2006-03-15 2011-06-21 Lg Electronics Inc. Suction head for mobile robot
US20130167321A1 (en) * 2007-02-13 2013-07-04 Samsung Electronics Co., Ltd. Upright type cleaner
US11291345B2 (en) 2018-08-27 2022-04-05 Techtronic Floor Care Technology Limited Floor cleaner
US11406240B1 (en) 2018-08-27 2022-08-09 Techtronic Floor Care Technology Limited Floor cleaner
CN113534573A (zh) * 2021-06-02 2021-10-22 重庆科技学院 一种具有自清洁功能的工业相机防护装置

Also Published As

Publication number Publication date
KR100595558B1 (ko) 2006-07-03
KR20050118001A (ko) 2005-12-15
CN1706331A (zh) 2005-12-14
EP1604602A2 (en) 2005-12-14
EP1604602A3 (en) 2007-09-05
EP1604602B1 (en) 2014-01-22
CN100353902C (zh) 2007-12-12

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Legal Events

Date Code Title Description
AS Assignment

Owner name: LG ELECTRONICS INC., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHO, SEONG-HO;YOO, MYUNG-KEUN;NAM, YOUNG-SOK;REEL/FRAME:016270/0438;SIGNING DATES FROM 20041227 TO 20050203

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION