WO2014122219A1 - Buse d'aspirateur comportant un moyen de support - Google Patents

Buse d'aspirateur comportant un moyen de support Download PDF

Info

Publication number
WO2014122219A1
WO2014122219A1 PCT/EP2014/052345 EP2014052345W WO2014122219A1 WO 2014122219 A1 WO2014122219 A1 WO 2014122219A1 EP 2014052345 W EP2014052345 W EP 2014052345W WO 2014122219 A1 WO2014122219 A1 WO 2014122219A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
cleaned
nozzle body
suction port
support means
Prior art date
Application number
PCT/EP2014/052345
Other languages
English (en)
Inventor
Tommy Andersson
Tommy Lindquist
Roger Karlsson
Original Assignee
Aktiebolaget Electrolux
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 Aktiebolaget Electrolux filed Critical Aktiebolaget Electrolux
Publication of WO2014122219A1 publication Critical patent/WO2014122219A1/fr

Links

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
    • A47L9/0633—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable 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
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/066—Nozzles with fixed, e.g. adjustably fixed brushes or the like with adjustably mounted brushes, combs, lips or pads; Height adjustment of nozzle or dust loosening tools

Definitions

  • the present invention generally relates to the field of nozzles for vacuum cleaners.
  • the present invention relates to nozzles with reduced noise level. Background of the invention
  • An issue in design of vacuum cleaners is to reduce the noise level generated during operation of the vacuum cleaner. Noise may arise from the motor/fan unit of the vacuum cleaner, but also from airflow in the vacuum cleaner (generated by the motor/fan unit). Such airflow generates noise when it passes the nozzle of the vacuum cleaner. It would be desirable to reduce the noise level of vacuum cleaner nozzles.
  • An object of the present invention is to provide an improved alternative to the above mentioned technique.
  • a nozzle for a vacuum cleaner comprises a nozzle body comprising a suction port for the purpose of taking in dust (or debris) from a surface to be cleaned, and support means arranged to protrude from the nozzle body so as to support the nozzle body on the surface to be cleaned and space the suction port from the surface to be cleaned with a distance comprised within an interval of 5 to 8 mm.
  • the inventors have realized that noise is generated when air is taken in (and guided) between the nozzle body and the surface to be cleaned (or cleaning surface). The noise is generated because the passage between the suction port of the nozzle body and the surface to be cleaned is rather narrow.
  • the nozzle comprises support means arranged to protrude from the nozzle body.
  • the support means support the nozzle body on the surface to be cleaned and space the suction port from the surface to be cleaned by the desired distance.
  • the support means may be arranged to protrude from the nozzle body so as to space the suction port from the surface to be cleaned with a distance comprised within an interval of 5.5 to 7 mm, and preferably within an interval of 5.5 to 6.5 mm.
  • the suction port may be defined between the portions of the nozzle body arranged to be closest to the surface to be cleaned when the nozzle is operated (i.e. when the nozzle is supported on the surface to be cleaned, such as during cleaning).
  • the distance between the suction port and the surface to be cleaned may be equal to the distance between the lowest portions of the nozzle body (when the nozzle is operated), such as the rim of the suction port, and the surface to be cleaned.
  • the gap between the lowest portions of the nozzle body and the surface to be cleaned is the narrowest passage at the air entrance between the nozzle and the surface to be cleaned and therefore also the passage of the air entrance possibly generating most noise and mostly effecting the suction force.
  • a reduced noise level and a proper suction force are provided.
  • the support means may comprise a brush with bristles arranged to support the nozzle body on the surface to be cleaned.
  • the length of the bristles may be adapted to space the suction port from the surface to be cleaned by the desired distance.
  • the bristles may be used not just for sweeping the surface to be cleaned, but also for spacing the suction port of the nozzle body from the surface to be cleaned.
  • the brush may extend along a front edge of the nozzle body and along a rear edge of the nozzle body.
  • the brush may thus provide a more stable support for the nozzle body on the surface to be cleaned, in particular if the nozzle is of an elongated type.
  • the front and rear edges are the edges of the nozzle body facing frontwards and rearwards, respectively, when the nozzle is moved in a natural forward direction (i.e. away from the user) during vacuum cleaning.
  • the suction port may be elongated for providing a larger dust intake area.
  • An elongated (and larger) dust intake area is advantageous in particular for floor-type nozzles (i.e. nozzles specially adapted to clean floors).
  • Floors normally constitute rather large cleaning areas (compared to other types of cleaning objects, such as furniture) and an elongated suction port cleans a larger area per time unit.
  • an elongated suction port reduces the time it takes for cleaning a particular area.
  • reduction of noise in such floor-type nozzles is desirable since such nozzles normally are operated during rather long periods at the time compared to accessory nozzles, which may be used for cleaning smaller surfaces (e.g. furniture) during shorter periods.
  • a user is exposed to the noise from a floor-type nozzle for relatively long time periods.
  • the support means may comprise wheels arranged to support the nozzle body on the surface to be cleaned. Hence, the wheels may be arranged to space the suction port from the surface to be cleaned by the desired distance.
  • the support means may be retractable towards (such as into) the nozzle body, which is advantageous for cleaning soft surfaces, such as carpets. In a projected position, the support means space the suction port from the surface to be cleaned by the desired distance, and in the retracted position, the nozzle body may be in direct contact with the surface to be cleaned. Intermediate positions between a fully projected position and a fully retracted position of the support means may also be envisaged.
  • the nozzle may be of a passive type (which may be referred to as a passive nozzle).
  • a passive nozzle is a nozzle without any rotary brushes or other means for actively agitating dust from the surface to be cleaned.
  • the noise level of nozzles of the passive type is in general lower than the noise level of nozzles of an active type (i.e. nozzles with rotary brushes or other means for actively agitating dust from the surface to be cleaned) due to the absence of noise arising from the rotary brushes.
  • the noise generated by the rotary brushes is normally significantly higher than the noise generated by the air intake between the nozzle and the surface to be cleaned.
  • a vacuum cleaner is provided.
  • the vacuum cleaner may comprise a nozzle as defined in any one of the preceding embodiments.
  • Figure 1 is a cross section view of a nozzle according to an embodiment.
  • Figure 2 is a diagram illustrating the noise level relative to the distance between a surface to be cleaned and a suction port of a nozzle according to an embodiment.
  • Figure 3 shows a vacuum cleaner according to an embodiment.
  • Figure 1 shows a cross section of a nozzle 1 for a vacuum cleaner according to an embodiment.
  • the nozzle 1 may be of a floor-type (i.e. adapted to clean floors or the like large cleaning surfaces) and/or of a passive type (i.e. without any means for actively agitating dust from the cleaning surface).
  • the nozzle 1 comprises a nozzle body 2, which preferably may be elongated in a direction perpendicular to the normal (natural) direction of movement of the nozzle 1 during operation of the vacuum cleaner.
  • the nozzle body 2 is connected to a nozzle outlet 3adapted for being connected to the suction hose of a vacuum cleaner (not shown in Figure 1 ), such that when the vacuum cleaner is in an operative mode, under pressure is created as air is sucked through the nozzle 1 via the hose to the vacuum cleaner.
  • the nozzle body 2 is pivotally connected with the nozzle outlet 3.
  • the nozzle body 2 comprises a suction port 1 1 for the purpose of taking in dust from the surface 10 to be cleaned.
  • the suction port 1 1 is an inlet of an air duct (or passage) 7 defined in the nozzle body 2 and connected to the nozzle outlet 3.
  • the suction port 1 1 is arranged on the underside of the nozzle body 2, i.e. in the side of the nozzle body 2 arranged to face the surface 10 to be cleaned.
  • the suction port 1 1 is defined between the portions 8 of the nozzle body 2 being closest to the surface 10 to be cleaned when the nozzle is supported on the surface 10, such as during vacuuming. Further, the suction port 1 1 may be elongated and extend along the longitudinal direction of the elongated nozzle body 2, such as between the two opposing tips of the nozzle body 2.
  • the nozzle 1 further comprises support means 4, 5, which in the present embodiment includes two brushes 4, 5 having bristles.
  • the brushes 4, 5 are mounted to the nozzle body 2 and are preferably manually or automatically retractable, such that the brushes 4, 5 can be retracted into the nozzle body 2 when the nozzle 1 is used for vacuuming carpets or other soft surfaces.
  • the brushes 4, 5 are of the passive type, i.e. they are substantially stationary, instead of driven to rotate, during cleaning.
  • the bristles of the brushes 4, 5 are arranged to support the nozzle body 2 on the surface 10 to be cleaned when they are positioned in a projected mode (as shown in Figure 1 ).
  • the brushes 4, 5 may extend along the long sides of the elongated nozzle body 2, preferably along a front edge 12 and a rear edge 13, respectively, of the nozzle body 2, i.e. substantially perpendicular to the natural direction of movement of the nozzle 1 during operation of the vacuum cleaner.
  • the support means may include wheels (not shown) for supporting the nozzle body 2 on the surface 10 to be cleaned.
  • the support means 4, 5 are arranged to space the suction port 1 1 from the surface 10 to be cleaned by a distance D comprised within an interval of 5 to 8 mm, preferably 5.5 to 7 mm, and most preferably 5.5 to 6.5 mm, such as around 6 mm.
  • the support means provides a gap (D) between (the underside of) the nozzle body 2 and the surface 10 of 5 to 8 mm.
  • the minimum distance between the nozzle body 2 and the surface 10 is 5 to 8 mm.
  • the nozzle 1 may comprise rear wheels 6 for supporting the rear portion of the nozzle 1 at the surface 10.
  • the lower portion of such rear wheels 6 may be arranged approximately at the same height as the underside of the nozzle body 2, thereby supporting the nozzle body 2 on the surface 10 when the support means 4, 5 are retracted and being spaced from the surface 10 when the support means 4, 5 are in the projected mode (as shown in Figure 1 ).
  • such rear wheels may form part of the support means for spacing the nozzle from the floor by the distance of 5 to 8 mm (not shown).
  • FIG. 2 shows a diagram illustrating noise level of a nozzle relative to the distance D between the suction port and the surface according to an example.
  • the reduction of noise is greatest at distances from around 1 to 4 mm. At distances from around 4 to 7 mm, the reduction of noise continues and around 8 mm, it gradually flattens out. By having a distance of at least 5 mm, the noise level may be
  • FIG. 3 shows a vacuum cleaner 100 comprising a nozzle according to an embodiment of the present invention. While specific embodiments have been described, the skilled person will understand that various modifications and alterations are conceivable within the scope as defined in the appended claims.

Landscapes

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

Abstract

La présente invention concerne, selon l'un de ses aspects, une buse (1) pour un aspirateur (100). La buse comprend un corps de buse (2) comprenant un orifice d'aspiration (11), servant à collecter de la poussière (ou des débris) présents sur une surface (10) à nettoyer, et un moyen de support (4, 5) disposé de manière à dépasser du corps de buse de façon à supporter le corps de buse sur la surface à nettoyer et à écarter l'orifice d'aspiration de la surface à nettoyer d'une distance comprise entre 5 et 8 mm. La présente invention a pour avantage que le niveau sonore est moins élevé tandis qu'une force d'aspiration adéquate est maintenue.
PCT/EP2014/052345 2013-02-07 2014-02-06 Buse d'aspirateur comportant un moyen de support WO2014122219A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1300099 2013-02-07
SE1300099-7 2013-02-07

Publications (1)

Publication Number Publication Date
WO2014122219A1 true WO2014122219A1 (fr) 2014-08-14

Family

ID=50070555

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/052345 WO2014122219A1 (fr) 2013-02-07 2014-02-06 Buse d'aspirateur comportant un moyen de support

Country Status (1)

Country Link
WO (1) WO2014122219A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105615770A (zh) * 2016-03-21 2016-06-01 江苏美的清洁电器股份有限公司 地刷组件及吸尘器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008111891A1 (fr) * 2007-03-09 2008-09-18 Aktiebolaget Electrolux Suceur d'aspirateur
EP2098150A2 (fr) * 2008-03-06 2009-09-09 Wessel-Werk Gmbh Bas d'aspiration pour un aspirateur de sol
EP2105078A2 (fr) * 2008-03-27 2009-09-30 Wessel-Werk Gmbh Bas d'aspiration pour un aspirateur de sol
EP2116165A2 (fr) * 2008-05-09 2009-11-11 Wessel-Werk Gmbh Bas d'aspiration pour aspirateurs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008111891A1 (fr) * 2007-03-09 2008-09-18 Aktiebolaget Electrolux Suceur d'aspirateur
EP2098150A2 (fr) * 2008-03-06 2009-09-09 Wessel-Werk Gmbh Bas d'aspiration pour un aspirateur de sol
EP2105078A2 (fr) * 2008-03-27 2009-09-30 Wessel-Werk Gmbh Bas d'aspiration pour un aspirateur de sol
EP2116165A2 (fr) * 2008-05-09 2009-11-11 Wessel-Werk Gmbh Bas d'aspiration pour aspirateurs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105615770A (zh) * 2016-03-21 2016-06-01 江苏美的清洁电器股份有限公司 地刷组件及吸尘器

Similar Documents

Publication Publication Date Title
US20230240492A1 (en) Cleaning apparatus with combing unit for removing debris from cleaning roller
US7134164B2 (en) Vacuum cleaner nozzle assembly having edge-cleaning ducts
JP4770986B2 (ja) 表面処理用電気器具のための床用ツール
CA2639006C (fr) Manche d'aspirateur dote d'une feuille jetable
US8261407B2 (en) Vacuum cleaner accessory tool
KR102044565B1 (ko) 진공청소기 헤드
AU2003207685A1 (en) Vacuum cleaner nozzle assembly having edge-cleaning ducts
US20100236019A1 (en) Nozzle for a floor cleaning device
CN108289581B (zh) 用于真空吸尘器的吸头及其操作方法
EP3181029A1 (fr) Suceur d'aspirateur
EP2934266B1 (fr) Suceur passif d'aspirateur ayant une ouverture d'admission d'air
US6094776A (en) Brush and spacer assembly for a vacuum cleaner
US7555812B1 (en) Brushless vacuum cleaner
US9149169B2 (en) Dual suction vacuum apparatuses and methods for use
AU2018255987A1 (en) Cleaning apparatus with combing unit for removing debris from cleaning roller
JP2016513513A (ja) 掃除機ヘッド
WO2014122219A1 (fr) Buse d'aspirateur comportant un moyen de support
CN108294685B (zh) 用于具有空气引导元件的吸嘴的底架
JP2012235867A (ja) 電気掃除機用吸込具
EP3047776A1 (fr) Tête d'aspiration pour aspirateur électrique et aspirateur électrique équipé de celui-ci
TWI657784B (zh) 吸嘴
CN210300848U (zh) 吸尘器吸嘴以及包括其的家用吸尘器
US20190167054A1 (en) Air agitator nozzle system
EP3151711A1 (fr) Buse à trois réglages
EP3010385B1 (fr) Suceur pour un aspirateur et aspirateur

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14703348

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14703348

Country of ref document: EP

Kind code of ref document: A1