EP1927310A1 - Aspirateur doté d'une lame mobile - Google Patents

Aspirateur doté d'une lame mobile Download PDF

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Publication number
EP1927310A1
EP1927310A1 EP07014911A EP07014911A EP1927310A1 EP 1927310 A1 EP1927310 A1 EP 1927310A1 EP 07014911 A EP07014911 A EP 07014911A EP 07014911 A EP07014911 A EP 07014911A EP 1927310 A1 EP1927310 A1 EP 1927310A1
Authority
EP
European Patent Office
Prior art keywords
blade
friction force
cleaner
cleaned
elastic member
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Withdrawn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
EP07014911A
Other languages
German (de)
English (en)
Inventor
Myeong-Ho Kim
Sam-Jong Jeung
Jeong-Gon Song
Ju-Sang Lee
Jang-Youn Ko
Kyoung-woung c/o Samsung Gwangju Electronics Co. Ltd. Kim
Hak-Bong Lee
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 Gwangju 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 Gwangju Electronics Co Ltd filed Critical Samsung Gwangju Electronics Co Ltd
Publication of EP1927310A1 publication Critical patent/EP1927310A1/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Withdrawn legal-status Critical Current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
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/20—Floor surfacing or polishing machines combined with vacuum cleaning devices
    • A47L11/204—Floor surfacing or polishing machines combined with vacuum cleaning devices having combined drive for brushes and for vacuum cleaning
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • 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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0666—Nozzles with fixed, e.g. adjustably fixed brushes or the like with tilting, floating or similarly arranged brushes, combs, lips or pads
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • 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
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
    • A47L2201/06—Control of the cleaning action for autonomous devices; Automatic detection of the surface condition before, during or after cleaning

Definitions

  • the present disclosure relates generally to a vacuum cleaner and, more particularly, to a moveable blade, which is attached to a lower end of the cleaner.
  • a vacuum cleaner at an undersurface thereof has an inlet, which draws in dust or dirt, and a blade, which is projected downward to collect dust or dirt in the vicinity of the inlet, thereby increasing the cleaning efficiency.
  • FIG. 1 is a perspective view of an undersurface of a general vacuum cleaner, particularly, a robot vacuum cleaner.
  • the robot cleaner includes a cleaner body 1, driving wheels 2, an inlet 3, an agitator 4, and a blade 5.
  • the cleaner body 1 has a pan motor and a filter mounted therein.
  • the driving wheels 2 are installed on an undersurface of the cleaner body 1 to move the cleaner.
  • the inlet 3 is formed in the vicinity of the driving wheels 2 to draw in the dust or dirt from the surface to be cleaned.
  • the agitator 4 is rotatably installed inside of the inlet 3 to wipe off the dust or dirt adhered to the surface to be cleaned and, thus, to allow the inlet to easily draw in the dust or dirt.
  • the blade 5 is projected and disposed in the vicinity of the inlet 3 to collect the dust or dirt in an inlet direction.
  • the robot cleaner as described above senses cleaning areas and obstacles by a sensor 6 installed in the cleaner under a control of a controller (not shown), and travels around on the sensed cleaning areas. At this time, as the agitator 4 rotates, most of the dust or dirt attached to the surface to be cleaned in the sensed cleaning areas is drawn in through the inlet 3. The rest of the dust or dirt, which is not removed, is captured by the blade 5 and, thus, is collected in the inlet direction, so that it is secondarily drawn in through the inlet.
  • an aspect of the present disclosure is to solve at least the above problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the present disclosure is to provide a cleaner capable of selectively jutting out a blade toward a surface to be cleaned, thereby increasing a cleaning efficiency, when the surface to be cleaned has a low friction force, and rotating the blade in a body direction, thereby reducing a traveling load to the cleaner, when the surface to be cleaned has a high friction force.
  • a cleaner including a body of the cleaner, a blade attached in the vicinity of an inlet at a lower end of the body, and a rotating unit to rotate the blade.
  • the rotating unit rotates the blade toward a surface to be cleaned when a friction force of the surface to be cleaned is smaller than a first friction force between the blade and a carpet, and rotates the blade in a body direction when the friction force of the surface to be cleaned is larger than the first friction force.
  • the first friction force may be determined as the mean value to friction force values of low-ranking 20% among a plurality of friction force values between a plurality of carpets and the blade.
  • an accommodating space may be formed in the body, so that the blade is inserted therein.
  • a prominence may be formed in the accommodating space so as to restrict a rotation of the blade.
  • the rotating unit may include a rotating axis formed on the blade, a coupling hole formed in the body, so that the rotating axis of the blade is inserted therein, and an elastic member having one end connected to the blade and the other end connected to the body.
  • the elastic member has an elastic force less than a first friction force between the blade and a carpet and more than a second friction force between the blade and a floor.
  • the second friction force may be determined as the mean value to friction force values of high-ranking 20% among a plurality of friction force values between a plurality of floors and the blade.
  • the elastic force of the elastic member is a first friction force between the blade and a carpet.
  • the elastic member is a spiral spring.
  • a groove may be formed on the blade, so that the one end of the spiral spring is inserted therein.
  • the rotating unit may include a rotating axis rotatably coupled on the body, a frame formed, so that the blade is attached thereto and having an end fixed on the rotating axis, and an elastic member having one end connected to the frame and the other end connected to the body.
  • the elastic member comprises a spring.
  • a cleaner including a body of the cleaner, and a blade attached in the vicinity of an inlet at a lower end of the body, so that an angle thereof to a surface to be cleaned is adjusted according a magnitude of a friction force of the surface to be cleaned.
  • the blade is rotated in a direction perpendicular to the surface to be cleaned when the friction force of the surface to be cleaned is smaller than a first friction force between the blade and a carpet, and in a body direction when the friction force of the surface to be cleaned is larger than the first friction force.
  • An accommodating space may be formed in the body, so that the blade is inserted therein.
  • a prominence may be formed in the accommodating space so as to restrict a rotation of the blade.
  • FIG. 2A is a perspective view exemplifying a portion to which a blade is mounted to an undersurface of a cleaner according to an exemplary embodiment of the present disclosure
  • FIG. 2B is a perspective view exemplifying only the blade of FIG. 2A in a magnified representation.
  • the cleaner according to the exemplary embodiment of the present disclosure includes a blade 23, a rotating unit 24, and an accommodating space 25.
  • the blade 23 is attached in the vicinity of an inlet 22 for drawing in dust or dirt from a surface to be cleaned at a lower end of a body 21 of the cleaner.
  • the rotating unit 24 rotates the blade 23.
  • the accommodating space 25 is formed in the body, so that the blade 23 is received therein.
  • the rotating unit 24 is provided with a rotating axis 23a, a coupling hole 21 a, and a spiral spring 26.
  • the rotating axis 23a is formed on both ends of the blade 23.
  • the coupling hole 21a is formed in the body 21, so that the rotating axis 23a of the blade 23 is inserted therein.
  • the spiral spring 26, as an elastic member, that has one end connected to the blade 23 and the other end connected to the body 21. Since the spiral spring 26 has the one end inserted to a groove 23b formed on the blade 23 and the other end connected to the body 21, it provides a rotation force to the blade 23.
  • a prominence 25a (see FIG. 3 ) is formed on the accommodating space 25 into which the blade 23 is inserted, so as to restrict a rotation of the blade 23.
  • An elastic force of the spiral spring 26 is set less than a first friction force between the blade 23 and a carpet and more than a second friction force between the blade 23 and a floor, such as a wooden floor or the like.
  • the rotating unit 24 rotates the blade 23 toward the surface to be cleaned when a friction force of the surface to be cleaned is smaller than the first friction force, and rotates the blade 23 in a direction towards body 21 when the friction force of the surface to be cleaned is larger than the first friction force.
  • FIG. 3A is a perspective view exemplifying an operation of the blade 23 if the friction force of the surface to be cleaned is smaller than the first friction force, for example, if the surface to be cleaned is a slippery floor 31.
  • the blade 23 is rotated in a direction towards the slippery floor 31 by a rotation force of the spiral spring 26. At this time, the blade 23 is maintained in a state generally perpendicular to the floor 31 by the prominence 25a. According to this, the blade 23 collects dust or dirt from the floor 31.
  • FIG. 3B is a perspective view exemplifying an operation of the blade 23 if the friction force of the surface to be cleaned is larger than the first friction force, for example, if the surface to be cleaned is a carpet 32.
  • the blade 23 since a friction force between the blade 23 and the carpet 32 is larger than a rotating force generated by the spiral spring 26, the blade 23 is rotated in a direction towards the body 21 and, thus, is received, at least partially, in the accommodating space 25.
  • the blade 23 comes in diagonal contact with the carpet 32 so as to reduce a traveling load to the cleaner.
  • FIG. 4A is a partially cut-away view exemplifying a portion to which a blade is mounted in detail among a cleaner according to another exemplary embodiment of the present disclosure.
  • the cleaner according to another exemplary embodiment of the present disclosure includes a blade 112, and a rotating unit 113.
  • the blade 112 is attached in the vicinity of an inlet (not illustrated) for drawing in dust or dirt from a surface to be cleaned at a lower end of a body 111 of the cleaner.
  • the rotating unit 113 rotates the blade 112 about a rotating axis 117 coupled on the body 111.
  • an accommodating space 114 is formed in the body 111.
  • a prominence 114a is formed to the accommodating space 114 so as to restrict a rotation of the rotating unit 113.
  • the rotating unit 113 is provided with the rotating axis 117, a rotating frame 115, and a spring 116.
  • the rotating axis 117 is rotatably coupled to the body 111.
  • the rotating frame 115 has an end fixed on the rotating axis 117, and is formed, so that the blade 112 is attached thereto.
  • the spring 116 as an elastic member, has one end connected to the frame 115 and the other end connected to an undersurface of the accommodating space 114 of the body 111.
  • a groove 115a is formed in the rotating frame 115, so that the blade 112 is vertically attached therein.
  • FIG. 4A illustrates an operation of the blade 112 if a friction force of the surface to be cleaned is smaller than the first friction force between the blade and the carpet as described above, for example, if the surface to be cleaned is a slippery floor 118.
  • the rotating frame 115 is rotated in a direction towards the floor 118 by a tension force of the spring 116.
  • the rotating frame 115 is maintained in a horizontal state to the floor 118 by the prominence 114a. According to this, the blade 112 attached to the rotating frame 115 collects dust or dirt from the floor 118.
  • FIG. 4B is a view exemplifying an operation of the blade 112 if the friction force of the surface to be cleaned is larger than the first friction force, for example, if the surface to be cleaned is a carpet 121.
  • the spring 116 is compressed.
  • the rotating frame 115 is rotated in a direction towards body 111 and, thus, received, at least partially, into the accommodating space 114. According to this, the blade 112 attached to the rotating frame 115 also comes in diagonal contact with the carpet 121 so as to reduce a traveling load to the cleaner.
  • a magnitude of the first friction force by which the blade 113 is rotated is determined by measuring friction forces between the blade used in the exemplary embodiment of the present disclosure and a plurality of carpets, which are sold on the market. That is, after friction force values between the plurality of carpets and the blade are measured, the mean value to friction force values of, for example, low-ranking 20% among the plurality of friction force values between the plurality of carpets and the blade can be determined as the first friction force. If the first friction force is determined in the manner as described above, the blade can be rotated on most of the carpets, which are sold on the market.
  • a magnitude of the second friction force can be set by measuring friction force values between the blade and a plurality of floors, which are sold on the market, and then determining the mean value to friction force values of, for example, high-ranking 20% among the plurality of friction force values between the plurality of floors and the blade as the second friction force. If the second friction force is determined in the manner as described above, the blade can be maintained in a vertical position on most of the floors, which are sold on the market.
  • an elastic force of the spring is set, so that it is less than the first friction force and more than the second friction force. More preferably, but not necessarily, the elastic force of the spring is set to maintain a balance to the first friction force.
  • the cleaner rotates the blade toward the surface to be cleaned to collect the dust or dirt from the surface to be cleaned, thereby increasing the cleaning efficiency, when the surface to be cleaned has the low friction force, and rotates the blade in the body direction to reduce the friction force, thereby reducing the traveling load to the cleaner, when the surface to be cleaned has the high friction force.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP07014911A 2006-11-28 2007-07-30 Aspirateur doté d'une lame mobile Withdrawn EP1927310A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060118340A KR100809737B1 (ko) 2006-11-28 2006-11-28 청소기

Publications (1)

Publication Number Publication Date
EP1927310A1 true EP1927310A1 (fr) 2008-06-04

Family

ID=39103019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07014911A Withdrawn EP1927310A1 (fr) 2006-11-28 2007-07-30 Aspirateur doté d'une lame mobile

Country Status (3)

Country Link
EP (1) EP1927310A1 (fr)
KR (1) KR100809737B1 (fr)
CN (1) CN101190114A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2229858A1 (fr) * 2009-03-20 2010-09-22 Bissell Homecare, Inc. Saugzubehörwerkzeug
DE102015105224A1 (de) * 2015-04-07 2016-10-13 Vorwerk & Co. Interholding Gmbh Vorrichtung für ein ein saugendes Gebläse aufweisendes Reinigungsgerät

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103767621B (zh) * 2012-10-17 2016-10-05 科沃斯机器人有限公司 地面清洁装置
KR101908421B1 (ko) 2016-12-30 2018-10-16 엘지전자 주식회사 청소기
KR101935946B1 (ko) 2017-01-19 2019-01-07 엘지전자 주식회사 청소기
KR102448087B1 (ko) 2017-01-19 2022-09-28 엘지전자 주식회사 청소기

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0649625A2 (fr) * 1993-10-22 1995-04-26 Sharp Kabushiki Kaisha Aspirateur électrique
DE19602487A1 (de) * 1995-01-27 1996-08-01 Olivier Ets Georges Sauger eines Staubsaugers
US20050251947A1 (en) * 2004-05-12 2005-11-17 Ju-Sang Lee Robot cleaner
US20060005350A1 (en) * 2004-07-09 2006-01-12 Sumsung Gwangju Electronics Co., Ltd. Suction brush for vacuum cleaner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000000913U (ko) * 1998-06-18 2000-01-15 전주범 청소기
KR100531825B1 (ko) * 2003-10-21 2005-12-01 엘지전자 주식회사 착,탈식 브러쉬를 가지는 진공청소기의 흡입헤드
KR100677276B1 (ko) * 2005-04-28 2007-02-02 엘지전자 주식회사 로봇청소기의 구동바퀴 전방 청소 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0649625A2 (fr) * 1993-10-22 1995-04-26 Sharp Kabushiki Kaisha Aspirateur électrique
DE19602487A1 (de) * 1995-01-27 1996-08-01 Olivier Ets Georges Sauger eines Staubsaugers
US20050251947A1 (en) * 2004-05-12 2005-11-17 Ju-Sang Lee Robot cleaner
US20060005350A1 (en) * 2004-07-09 2006-01-12 Sumsung Gwangju Electronics Co., Ltd. Suction brush for vacuum cleaner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2229858A1 (fr) * 2009-03-20 2010-09-22 Bissell Homecare, Inc. Saugzubehörwerkzeug
US8667642B2 (en) 2009-03-20 2014-03-11 Bissell Homecare, Inc. Vacuum accessory tool
DE102015105224A1 (de) * 2015-04-07 2016-10-13 Vorwerk & Co. Interholding Gmbh Vorrichtung für ein ein saugendes Gebläse aufweisendes Reinigungsgerät

Also Published As

Publication number Publication date
KR100809737B1 (ko) 2008-03-06
CN101190114A (zh) 2008-06-04

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