EP0845237A1 - Aspirateur - Google Patents

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Publication number
EP0845237A1
EP0845237A1 EP96119228A EP96119228A EP0845237A1 EP 0845237 A1 EP0845237 A1 EP 0845237A1 EP 96119228 A EP96119228 A EP 96119228A EP 96119228 A EP96119228 A EP 96119228A EP 0845237 A1 EP0845237 A1 EP 0845237A1
Authority
EP
European Patent Office
Prior art keywords
dust
signal
vacuum cleaner
output signal
light emitting
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
EP96119228A
Other languages
German (de)
English (en)
Other versions
EP0845237B1 (fr
Inventor
Nobuo Imamura
Jun Yoshikawa
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.)
Yashima Electric Co Ltd
Yashima Denki Co Ltd
Original Assignee
Yashima Electric Co Ltd
Yashima Denki 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 Yashima Electric Co Ltd, Yashima Denki Co Ltd filed Critical Yashima Electric Co Ltd
Priority to DE1996607629 priority Critical patent/DE69607629T2/de
Priority to EP19960119228 priority patent/EP0845237B1/fr
Publication of EP0845237A1 publication Critical patent/EP0845237A1/fr
Application granted granted Critical
Publication of EP0845237B1 publication Critical patent/EP0845237B1/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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2894—Details related to signal transmission in suction cleaners
    • 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
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/281—Parameters or conditions being sensed the amount or condition of incoming dirt or dust
    • A47L9/2815—Parameters or conditions being sensed the amount or condition of incoming dirt or dust using optical detectors
    • 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
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays

Definitions

  • the present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner which detects a quantity of dust and visually displays the detected quantity of dust.
  • a vacuum cleaner is strongly demanded for improving its functions similarly to other electrified products. It is proposed and is realized to respond the demand for improving its functions, that a dust sensor is provided to a vacuum cleaner. Specifically, a dust sensor for detecting a quantity of sucking dust is provided at a predetermined position of a suction path, and a detection output of the dust sensor, that is the quantity of dust is displayed by two stages (refer to U.S. Patent No. 4,601,082).
  • dust includes dust of various shapes and sizes such as small sized particles, comparatively large sized particles, cotton dust and others. And, these various dust varies their percentages depending upon a place to be cleaned. It is almost impossible that which kind of dust has the greatest percentage and that how much is the greatest percentage.
  • a disadvantage may arise in that a display is made to show a great quantity of dust despite of the quantity of dust is small in actual depending upon a shape and size of the dust when it is displayed that the quantity of dust is great or small, for example. That is, a detection output of a dust sensor is compared with a predetermined threshold value, and it is displayed depending upon a relationship in size between the detection output and the threshold value that a quantity of dust is great or small, for displaying a quantity of dust by two steps. Consequently, the above disadvantage may arise.
  • a threshold value is varied in correspondence to a shape and size of dust, but another disadvantage arises in that an operation for varying the threshold value is needed. And, when an operator forgets the operation, the above disadvantge occurrs. Furthermore, a further disadvantage arises in that an extra operation for determining plural threshold values previously, which values are to be selected by an operator.
  • an extra power supply is needed for performing detection of a quantity of dust by a dust sensor, comparison of a detection output and a predetermined threshold value, display based upon the comparison result.
  • a dry battery is generally employed as the power supply.
  • a yet disadvantage arises in that the dry battery is to be exchanged to a new dry battery. Furthermore, when an operatior forgets exchanging of the dry battery, it is impossible to perform detection and display of a quantity of dust.
  • the present invention was made in view of the above problems.
  • a vacuum cleaner according to the present invention is a vacuum cleaner which generates a suction force by driving a motor provided within a vacuum cleaner body, and sucks dust with an air through an air suction path member connected to the vacuum cleaner body.
  • the vacuum cleaner comprises an optical dust sensor for optically detecting a uantity of dust which sensor is provided at a predetermined position of the air suction path member, and a display device driven by an output from the optical dust sensor in stageless condition.
  • a vacuum cleaner according to the present invention employs a fan driven by a suction force and an electric generator driven by the fan as a power source for driving an optical dust sensor, a display and the like.
  • Figure 1 is a diagram schematically showing an arragement of a vacuum cleaner according to the present invention.
  • the vacuum cleaner comprises a vacuum cleaner body 61, a hose 62 having a bellows shape, an extension pipe 63 provided at a leading edge section of the hose 62 in a removable manner, and a floor nozzle 64 provided at a leading edge section of the extension pipe 63.
  • the vacuum cleaner body 61 includes a suction fan 65, a motor 66 for driving the suction fan 65, a dust bag 67 for collecting sucked dust, a filter 68 for collecting fine dust which is not collected by the dust bag 67, a motor control section 69 for controlling the motor 66 causing varying of a suction force, a exhaust opening 70, a caster 71, and wheels 72.
  • the floor nozzle 64 includes a floor nozzle pipe 73 for connecting the floor nozzle 64 to the extension pipe 63.
  • the floor nozzle pipe 73 includes a non-inclination section 74 and an inclination section 75 by being inclined an edge-ward predetermined extent of the floor nozzle pipe 73, as is illustrated in Figs. 2 through 4.
  • the floor nozzle pipe 73 performs connection of the floor nozzle 64 to the extension pipe 63.
  • the floor nozzle pipe 73 easily lay the floor nozzle 64 on a floor and the like without a forced posture of an operator when the operator performs cleaning by grasing the extension pipe 63, for example.
  • the floor nozzle pipe 73 includes a cover member 76 which bridges across the non-inclination section 74 and the inclination section 75.
  • the cover member 76 includes therein an electrical circuitry for detecting and visially displaying a quantity of sucked dust, and includes a suction opening 77 and a display section 78.
  • Figure 5 is a vertical cross sectionasl view showing an interor arrangement of the floor nozzle pipe 73 and the cover member 76.
  • the floor nozzle pipe 73 includes a light emitting device 79 such as a light emitting diode and the like and a light receiving device 80 such as a phototransistor and the like (the light emitting device 79 and the light receiving device 80 consist a dust sensor 3).
  • the light emitting device 79 and the light receiving device 80 are opposite to one another in a direction which crosses an air flowing direction within the floor nozzle pipe 73 by a right angle.
  • a light radiation face of the light emitting device 79 and a light receiving face of the light receiving device 80 are determined to be almost the same height with an inner face of the floor nozzle pipe 73. Therefore, a quantity of light which reaches the light receiving device 80 among dariated light from the light emitting device 79, is decreased by dust included within an air flow so that a quantity of dust is detected based upon an output signal from the light receiving device 80.
  • the cover member 76 includes therein a dust sensor circuitry section 81 for performing processing based upon an output signal from the dust sensor 3, a rotatable turbin wheel 82 provided at a position which is close to the suction opening 77, a d.c. electric generator 1 driven by the rotatable turbin wheel 82, and a display device 2 such as light emitting diode and the like which is driven based upon an output signal from the dust sensor circuitry section 81.
  • Figure 6 is a block diagram showing an electrical arrangement of a main portion of a vacuum cleaner according to the present invention.
  • a dust detection and display apparatus of a vacuum cleaner amplifies an output signal from the dust sensor 3 using an amplifier 4, then obtains a d.c. voltage using a rectification circuitry 5, converts the d.c. voltage into a d.c. current using a voltage-current converter circuitry (driving circuitry) 6, and thereafter supplies the converted d.c. current to the display device 2. Then, the dust detection and display apparatus feedbacks an output signal from a correction circuitry 7 to the dust sensor 3, the correction circuitry 7 being input the output signal from the dust sensor 3, so that a quantity of radiating light of the light emitting device 79 of the dust sensor 3.
  • a d.c. electric generator 1 is provided for supplying an operation voltage to the dust sensor 3, amplifier 4, voltage-current converter circuitry 6, and display device 2, the d.c. electric generator 1 being not illustrated in Fig. 6.
  • Figure 7 is an electrical curcuit diagram showing the arrangement in Fig. 6 in more detail.
  • a Zener diode ZD1 and a capacitor C1 are connected in parallel between both terminals of the d.c. electric generator G.
  • a Zener diode ZD2 and a capacitor C2 are connected in parallel between both terminals of the d.c. electric generator G through a resistor R1.
  • a resistor R2, a phototransistor Q1 as the light receiving device 80, and a resistor R3 are connected in serial between both terminals of the capacitor C2.
  • a capacitor C3 is connected parallelly to the resistor R2.
  • the correction circuitry 7 is connected between both terminals of the capacitor C2.
  • the correction circuitry 7 is supplied a voltage which is a voltage at a connecting point of the phototransistor Q1 and the resistor R3.
  • a light emitting diode LED1 is connected between output terminals of the correction circuitry 7.
  • a resistor R4, a resistor R5, and a diode D1 are connected in serial between both terminals of the capacitor C2.
  • a connecting point of the resistors R4 and R5 is connected to a non-reversed input terminal of an operational amplifier IC1-1, and a connecting point of the phototransistor Q1 and the resistor R3 is connected to a reversed input terminal of the operational amplifier IC1-1 through a capacitor C4.
  • a resistor R7 is connected between the non-reversed input terminal and an output terminal of the operational amplifier IC1-1.
  • a diode D2 and a resistor R8 are connected in serial to the output terminal of the operational amplifier IC1-1, and a capacitor C5 and a resistor R9 are connected in parallel between the resistor R8 and a negative output terminal of the d.c. electric generator G.
  • a connecting point of the resistor R8 and the capacitor C5 is connected to a non-reversed input terminal of an operational amplifier IC1-2, the negative output terminal of the d.c. electric generator G is connected to a reversed input terminal of the operational amplifier IC1-2 through a resistor R10.
  • An output terminal of the operational amplifier IC1-2 is connected to a base terminal of a transistor Q2.
  • a light emitting diode LED2 is connected between a positive output terminal of the d.c. electric generator G and a collector terminal of the transistor Q2.
  • a resistor R12 is connected between the negative output terminal of the d.c. electric generator G and a emitter terminal of the transistor Q2.
  • a resistor R11 is connected between the reversed input terminal of the operational amplifier IC1-2 and the emitter terminal of the transistor Q2.
  • a light radiated from the light emitting device 79 is received by the light receiving device 80.
  • An output signal from the light receiving device 80 (a voltage at the connecting point of the phototransistor Q1 and the resistor R3) is amplified by the operational amplifier IC1-1, then rectified by the diode D2, thereafter the d.c. voltage is converted into a d.c. current by the voltage-current converter circuitry 6.
  • the converted d.c. current is supplied to the display device 2.
  • a quantity of light which is received by the light receiving device 80 varies depending upon a quantity of dust included within an air which passes through the floor nozzle pipe 73.
  • an output signal corresponds to a quantity of sucked dust. And, the output signal is supplied to the display device 2 after being applied predetermined processings by the amplifier 4 and the voltage-current converter circuitry 6.
  • a d.c. current supplied to the display device 2 is not performed a processing based upon a threshold value at all, therefore the d.c. current corresponds to a quantity of dust and the d.c. current varies in correspondence to variation of a quantity of dust within an air which passes through the floor nozzle pipe 73. That is, the d.c. current supplied to the display device 2 varies in stageless condition depending upon the variation in quantity of dust. Consequently, threshold values are not necessarily determined at all, determination of optimum threshold values being difficult and an operation for determining optimum threshold values being extremely complicated.
  • Figure 8 is a block diagram showing another electrical arrangement of a main portion of a vacuum cleaner according to the present invention.
  • An dust detection and display apparatus illustrated in Fig. 8 differs from the dust detection and display apparatus illustrated in Fig. 6 in that a pulse width modulation circuitry 8 which receives the output signal from the rectification circuitry 5, and a driver circuitry 9 which receives a pulse width modulation signal output from the pulse width modulation circuitry 8 are employed instead of the voltage-current converter circuitry 6.
  • the pulse width modulation circuitry 8 performs pulse width modulation in correspondence to an output signal from the rectification circuitry 5 so as to output a pulse width modulation signal.
  • the driver circuitry 9 receives the pulse width modulation signal and outputs a driving signal for driving the display device 2 therefrom.
  • threshold values are not necessarily determined at all, and the driving signal supplied to the display device 2 varies in stageless condition corresponding to variation in quantity of dust so that a quantity of dust within an air which passes through the floor nozzle pipe 73 is securely displyed, in its turn it can be displayed that cleaning has finished, despite of no threshold values being employed.
  • Figure 9 is a block diagram showing a further electrical arrangement of a main portion of a vacuum cleaner according to the present invention.
  • An dust detection and display apparatus illustrated in Fig. 9 differs from the dust detection and display apparatus illustrated in Fig. 6 in that a voltage controlled oscillator 10 which receives an output signal from the rectification circuitry 5, and a driver circuitry 9 which receives an oscillation signal output from the voltage controlled oscillator 10 are employed instead of the voltage-current converter circuitry 6.
  • the voltage controlled oscillator 10 performs oscillation in correspondence to an output signal (output voltage) from the rectification circuitry 5 so as to output an oscilation signal, and the driver circuitry 9 receives the oscillation signal and outputs a driving signal for driving the display device 2.
  • threshold values are not necessarily determined at all, and the driving signal supplied to the display device 2 varies in stageless condition corresponding to variation in quantity of dust so that a quantity of dust within an air which passes through the floor nozzle pipe 73 is securely displyed, in its turn it can be displayed that cleaning has finished, despite of no threshold values being employed.
  • Figure 10 is a block diagram showing a yet electrical arrangement of a main portion of a vacuum cleaner according to the present invention.
  • An dust detection and display apparatus illustrated in Fig. 9 differs from the dust detection and display apparatus illustrated in Fig. 6 in that a driver circuitry 11 and a reversed driver circuitry 12 both receive an output signal from the rectification circuitry 5 are employed instead of the voltage-current converter circuitry 6, and that a display device 2a driven by the driver circuitry 11 and a display device 2b driven by the reversed driver circuitry 12 are employed instead of the display device 2.
  • an output signal from the rectification circuitry 5 is simultaneously supplied to the driver circuitry 11 and the reversed driver circuitry 12.
  • the driver circuitry 11 outputs a signal so as to drive the display device 2a which signal is in proportion to the output signal from the rectification circuitry 5, and the reversed driver circuitry 12 outputs a signal so as to drive the display device 2b which signal is in reversed proportion to the output signal from the rectification circuitry 5.
  • the display device 2a and the display device 2b are driven by signals which represent reversed variation to one another. Therefore, when a quantity of dust is increased, for example, the display device 2a lights brighter, while the display device 2b lights darker.
  • a quantity of dust can be displayed as a variation in color by determining a display color of the display device 2a and a display color of the display device 2b, both colors being different from one another, and by providing both display devices 2a and 2b within a single mold 2e as is illutrated in Fig. 15.
  • threshold values are not necessarily determined at all, and the driving signal supplied to the display device 2 varies in stageless condition corresponding to variation in quantity of dust so that a quantity of dust within an air which passes through the floor nozzle pipe 73 is securely displyed, in its turn it can be displayed that cleaning has finished, despite of no threshold values being employed.
  • Figure 11 is a block diagram of a main portion of a dust detection and display apparatus of a modified example.
  • the display devices 2a and 2b are connected in serial to one another, and an output signal from a driver circuitry 10 which receives an output signal from the rectification circuitry 5 is supplied to a connecting point of the display device 2a and the display device 2b.
  • Figure 12 is a block diagram showing yet another electrical arrangement of a main portion of a vacuum cleaner according to the present invention.
  • the dust detection and display apparatus illustrated in Fig. 12 differs from the dust detection and display apparatus illustrated in Fig. 10 in that a lens 13 is further provided for mixing a display of the display device 2a and a display of the display device 2b.
  • the dust detection and display apparatus illustrated in Fig. 12 When the dust detection and display apparatus illustrated in Fig. 12 is employed, simple display devices can be employed as the display device 2a and the display device 2b, respectively. Thertefore, freedom in selecting a display device is improved. And, the dust detection and display apparatus illustrated in Fig. 12 performs similar operation to that of the dust detection and display apparatus illustrated in Fig. 10.
  • Figure 13 is an electrical circuit diagram showing in more detail a dust detection and diaplay apparatus illustrated in Fig. 6.
  • the electrical circuit diagram illustrated in Fig. 13 differs from the electrical circuit diagram illustrated in Fig. 7 in that a variable resistor R13 is employed instead of the resistor R12 which is connected to the transistor Q2 in serial.
  • the variable resistor R13 may be any type of resistors which can be varied its resistance value such that a variable resistor which is manually varied its resistance value in stageless condition, a resistance circuitry which is manually selected one of a plurality of resistance values previously determined, a resistance device or a resistance circuitry which receives a resistance value changing command and varies its resistance value in a stageless condition, a resistance device or a resistance circuitry which receives a resistance value changing command and selects one of a plurality of resistance values previously determined, and the like.
  • a display by the display device 2 is varied brighter or darker in comparison to a display by the dust detection and display apparatus illustrated in Fig. 7 by varying the resistance value of the variable resistor R13. Therefore, a dust detection sensitivity can be adjusted. Consequently, an optimum dust detection sensitivity can be obtained which matches species of cleaning location (species such as a board floor, a tatami mat, a carpet and the like), a suction force of a vacuum cleaner and the like.
  • species of cleaning location species such as a board floor, a tatami mat, a carpet and the like
  • the dust detection and display apparatus illustrated in Fig. 13 performs similar operation to that of the dust detection and display apparatus illustrated in Fig. 7.
  • the dust detection and display apparatus illustrated in Fig. 6 through Fig. 13 are provided to the floor nozzle pipe 73. But, the dust detection and display apparatus illustrated in Fig. 6 through Fig. 13 are possibly provided at an arbitrary position of a path which sucks an air following cleaning, such as a predetermined position of the hose 62 having a bellows shape, a predetermined position of the extension pipe 63 and the like.
  • Figures 14 are vertical cross sectional view showing arrangements of a display device.
  • a light emitting diode 2 is employed as the display device 2 and a transparent flat membrane 2c is provided at a position which is close to a light emitting face of the light emitting diode 2.
  • a light emitting diode 2 is employed as the display device 2 and a transparent curved (projected) membrane 2d is provided at a position which is close to a light emitting face of the light emitting diode 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
EP19960119228 1996-11-29 1996-11-29 Aspirateur Expired - Lifetime EP0845237B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1996607629 DE69607629T2 (de) 1996-11-29 1996-11-29 Staubsauger
EP19960119228 EP0845237B1 (fr) 1996-11-29 1996-11-29 Aspirateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19960119228 EP0845237B1 (fr) 1996-11-29 1996-11-29 Aspirateur

Publications (2)

Publication Number Publication Date
EP0845237A1 true EP0845237A1 (fr) 1998-06-03
EP0845237B1 EP0845237B1 (fr) 2000-04-05

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EP19960119228 Expired - Lifetime EP0845237B1 (fr) 1996-11-29 1996-11-29 Aspirateur

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DE (1) DE69607629T2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1333555A2 (fr) * 2002-02-01 2003-08-06 Miele & Cie. KG Procédé et circuit pour éviter la discharge en mode de veille d'un circuit d'évaluation de signal alimenté par batterie
US7805803B2 (en) 2004-02-16 2010-10-05 Miele & Cie. Kg Suction nozzle for a vacuum cleaner, comprising a dust flow display device
CN102721647A (zh) * 2012-06-29 2012-10-10 深圳市银星智能科技股份有限公司 一种吸尘产品用垃圾浓度探测装置和垃圾浓度识别方法
US8838274B2 (en) 2001-06-12 2014-09-16 Irobot Corporation Method and system for multi-mode coverage for an autonomous robot
US10314449B2 (en) 2010-02-16 2019-06-11 Irobot Corporation Vacuum brush
US11072250B2 (en) 2007-05-09 2021-07-27 Irobot Corporation Autonomous coverage robot sensing

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US6956348B2 (en) 2004-01-28 2005-10-18 Irobot Corporation Debris sensor for cleaning apparatus
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US7720554B2 (en) 2004-03-29 2010-05-18 Evolution Robotics, Inc. Methods and apparatus for position estimation using reflected light sources
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US7706917B1 (en) 2004-07-07 2010-04-27 Irobot Corporation Celestial navigation system for an autonomous robot
US7620476B2 (en) 2005-02-18 2009-11-17 Irobot Corporation Autonomous surface cleaning robot for dry cleaning
US8392021B2 (en) 2005-02-18 2013-03-05 Irobot Corporation Autonomous surface cleaning robot for wet cleaning
WO2006089307A2 (fr) 2005-02-18 2006-08-24 Irobot Corporation Robot autonome pour nettoyage humide et sec
US8930023B2 (en) 2009-11-06 2015-01-06 Irobot Corporation Localization by learning of wave-signal distributions
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US9144360B2 (en) 2005-12-02 2015-09-29 Irobot Corporation Autonomous coverage robot navigation system
EP2816434A3 (fr) 2005-12-02 2015-01-28 iRobot Corporation Robot à couverture autonome
US8572799B2 (en) 2006-05-19 2013-11-05 Irobot Corporation Removing debris from cleaning robots
US8417383B2 (en) 2006-05-31 2013-04-09 Irobot Corporation Detecting robot stasis
KR20210029583A (ko) 2019-09-06 2021-03-16 삼성전자주식회사 청소기 및 청소기의 제어 방법
DE102020106840A1 (de) 2020-03-12 2021-09-16 Wessel-Werk Gmbh Staubsaugerdüse und Verfahren zu deren Betrieb

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US4601082A (en) 1984-02-08 1986-07-22 Gerhard Kurz Vacuum cleaner
US4680827A (en) * 1985-09-28 1987-07-21 Interlava Ag Vacuum cleaner
EP0546620A1 (fr) * 1991-12-10 1993-06-16 Koninklijke Philips Electronics N.V. Aspirateur
EP0584743A1 (fr) * 1992-08-21 1994-03-02 YASHIMA ELECTRIC CO., Ltd. of ISHIHARA NOGAMI Aspirateur de poussières
JPH06154133A (ja) * 1992-11-20 1994-06-03 Matsushita Electric Ind Co Ltd 電気掃除機用吸込具
JPH07250794A (ja) * 1994-03-14 1995-10-03 Matsushita Electric Ind Co Ltd 電気掃除機の床用吸い込み具

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US4601082A (en) 1984-02-08 1986-07-22 Gerhard Kurz Vacuum cleaner
US4601082C1 (en) 1984-02-08 2001-04-24 Interlava Ag Vacuum cleaner
US4680827A (en) * 1985-09-28 1987-07-21 Interlava Ag Vacuum cleaner
EP0546620A1 (fr) * 1991-12-10 1993-06-16 Koninklijke Philips Electronics N.V. Aspirateur
EP0584743A1 (fr) * 1992-08-21 1994-03-02 YASHIMA ELECTRIC CO., Ltd. of ISHIHARA NOGAMI Aspirateur de poussières
JPH06154133A (ja) * 1992-11-20 1994-06-03 Matsushita Electric Ind Co Ltd 電気掃除機用吸込具
JPH07250794A (ja) * 1994-03-14 1995-10-03 Matsushita Electric Ind Co Ltd 電気掃除機の床用吸い込み具

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PATENT ABSTRACTS OF JAPAN vol. 95, no. 010 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8838274B2 (en) 2001-06-12 2014-09-16 Irobot Corporation Method and system for multi-mode coverage for an autonomous robot
EP1333555A2 (fr) * 2002-02-01 2003-08-06 Miele & Cie. KG Procédé et circuit pour éviter la discharge en mode de veille d'un circuit d'évaluation de signal alimenté par batterie
EP1333555A3 (fr) * 2002-02-01 2006-07-12 Miele & Cie. KG Procédé et circuit pour éviter la discharge en mode de veille d'un circuit d'évaluation de signal alimenté par batterie
US7805803B2 (en) 2004-02-16 2010-10-05 Miele & Cie. Kg Suction nozzle for a vacuum cleaner, comprising a dust flow display device
US11072250B2 (en) 2007-05-09 2021-07-27 Irobot Corporation Autonomous coverage robot sensing
US10314449B2 (en) 2010-02-16 2019-06-11 Irobot Corporation Vacuum brush
US11058271B2 (en) 2010-02-16 2021-07-13 Irobot Corporation Vacuum brush
CN102721647A (zh) * 2012-06-29 2012-10-10 深圳市银星智能科技股份有限公司 一种吸尘产品用垃圾浓度探测装置和垃圾浓度识别方法

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EP0845237B1 (fr) 2000-04-05
DE69607629D1 (de) 2000-05-11
DE69607629T2 (de) 2000-10-19

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