EP1276410B1 - Vacuum cleaner nozzle - Google Patents

Vacuum cleaner nozzle Download PDF

Info

Publication number
EP1276410B1
EP1276410B1 EP01918149A EP01918149A EP1276410B1 EP 1276410 B1 EP1276410 B1 EP 1276410B1 EP 01918149 A EP01918149 A EP 01918149A EP 01918149 A EP01918149 A EP 01918149A EP 1276410 B1 EP1276410 B1 EP 1276410B1
Authority
EP
European Patent Office
Prior art keywords
brush
inlet port
guide
suction inlet
vacuum cleaner
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.)
Expired - Lifetime
Application number
EP01918149A
Other languages
German (de)
French (fr)
Other versions
EP1276410B2 (en
EP1276410A1 (en
Inventor
Beni Melamet
Franz LSTM Friedrich Alexander Universität DURST
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.)
Arcelik AS
Original Assignee
Arcelik AS
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21622397&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1276410(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP1276410A1 publication Critical patent/EP1276410A1/en
Application granted granted Critical
Publication of EP1276410B1 publication Critical patent/EP1276410B1/en
Publication of EP1276410B2 publication Critical patent/EP1276410B2/en
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
    • A47L9/02—Nozzles

Definitions

  • the present invention relates to increasing the efficiency and dust pick-up and collecting performance of the brush used in vacuum cleaners.
  • Vacuum cleaners are machines with very low efficiency values.
  • the power of the motor used in the vacuum cleaners is 1400 W. However only 300 W of this power is used for an efficient dust suction. Furthermore this power value of 300 W is consumed only for the suction of micron sized dust particles. For this reason, there is a need of a vacuum cleaner with a much higher efficiency, having a maximum dust pick up capacity at a lower power value.
  • a suction inlet is arranged in the middle or near to the front of the base of the brush used in the vacuum cleaners.
  • the dirt or dust is picked up from the ground depending on the suction capacity of the vacuum cleaner, it is directed towards the said suction inlet by means of the channels located at the bottom surface of the brush.
  • Channels are provided along the bottom of the brush, in order to provide a uniform pressure distribution along its bottom surface as well as to provide a homogeneous suction.
  • the inlet openings provided on both ends of the channel located at the front section of the brush bottom surface are narrow and the channel widens towards the suction inlet port. Moreover these channels are arranged symmetrically on the right and left sides of the brush.
  • the pressure distribution created at the base of the brush is an important parameter influencing the dust pick up and suction.
  • dust is sucked-in from a single point.
  • the suction inlet port is located at the centre of the brush, the zone where maximum dust suction is realized is the middle part of the brush; therefore high pressure values are created at the bottom of the brush and a homogeneous suction cannot be provided along the width of the said brush.
  • the use of the brush causes difficulties for the user by increasing the force applied at the direction opposite to that applied by the user.
  • the object of the present invention is to increase the efficiency and dust pick up performance of the brush used in the vacuum cleaners.
  • the flow of the debris sucked in together with air is guided towards the suction inlet port (4) of the vacuum cleaner by means of a guide (2) placed inside the brush (1).
  • the guide (2) consists of symmetrical lateral edges (6) and a suction inlet port window (5) with an opening which matches with the suction inlet port (4).
  • the guide (2) is so placed along the brush (1) that its opening is at the base of the brush.
  • the suction inlet port window (5) provided at the upper portion of the guide (2) overlaps with the suction inlet port (4) and it has a width that matches with the suction inlet port (4).
  • the lateral edges (6) of the guide (2) may also be bent in a convex form as well as in a concave form. It can also consist of straight lateral edges (6) with a certain slope.
  • a turbulence is created inside the guide (2) placed within the brush (1), when the flow reaches to extremely high speeds.
  • a profile (3) is used in order to enhance the performance while directing the debris received in together with air towards the suction inlet port (4).
  • An elliptical profile (3) to direct the flow coming from the front and back of the brush separately towards the suction inlet port (4) with a minimum loss, is placed along the guide in such a manner that it is centrally located in the guide (2).
  • the length of the profile (3) is shorter than that of the guide (2) and the profile (3) is mounted in the recesses (12) provided on both sides of the guide (2) so that no gap is left between the profile (3) and the guide (2).
  • a catch (10) is provided at the point of the profile which matches with the suction inlet port window (5), in order to facilitate the guiding of the debris laden air towards the suction inlet port (4) and to regulate the air flow at the suction inlet port (4) of the brush (1); the surface of which, facing the suction inlet port (4) is straight, whereas the other surface has a certain inclination.
  • the said profile (3) may be elliptical or can be circular or equilateral rectangular.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The flow of the deris sucked in together with air is guided towards the suction inlet port (4) of the vacuum cleaner by means of a guide (2) placed inside the brush (1). The guide (2) consists of symmetrical concave lateral edges (6) and a suction inlet port window (5) with an opening which matches with teh suction inlet port (4). As the lateral edges (6) of the guide (2) are inclined at a certain degree, the losses that may occur at the flow region are minimized. The guide (2) is so placed along the brush (1) that its opening is at the base of the brush. The ssuction inlet port window (5) prov,ded at the upper portion of the guide (2) overlaps with teh suction inlet port (4) and it ahs a width that matches with the suction inlet port (4). Furthermore, pressure losses are avoided by preventing the dirt laden air from entering the undesired regions of the brush (1) by means of the guide (2).

Description

  • The present invention relates to increasing the efficiency and dust pick-up and collecting performance of the brush used in vacuum cleaners.
  • Vacuum cleaners are machines with very low efficiency values. The power of the motor used in the vacuum cleaners is 1400 W. However only 300 W of this power is used for an efficient dust suction. Furthermore this power value of 300 W is consumed only for the suction of micron sized dust particles. For this reason, there is a need of a vacuum cleaner with a much higher efficiency, having a maximum dust pick up capacity at a lower power value.
  • In the state of art such as set out in US 4 336 628 , a suction inlet is arranged in the middle or near to the front of the base of the brush used in the vacuum cleaners. As the dirt or dust is picked up from the ground depending on the suction capacity of the vacuum cleaner, it is directed towards the said suction inlet by means of the channels located at the bottom surface of the brush. Channels are provided along the bottom of the brush, in order to provide a uniform pressure distribution along its bottom surface as well as to provide a homogeneous suction. By means of these channels, a balanced and uniform dust pick-up and suction from the middle, right and left sections of the brush is provided. The inlet openings provided on both ends of the channel located at the front section of the brush bottom surface are narrow and the channel widens towards the suction inlet port. Moreover these channels are arranged symmetrically on the right and left sides of the brush. The pressure distribution created at the base of the brush is an important parameter influencing the dust pick up and suction. However, with regard to the suction characteristics of all these brushes, dust is sucked-in from a single point. As the suction inlet port is located at the centre of the brush, the zone where maximum dust suction is realized is the middle part of the brush; therefore high pressure values are created at the bottom of the brush and a homogeneous suction cannot be provided along the width of the said brush. In this case, the use of the brush causes difficulties for the user by increasing the force applied at the direction opposite to that applied by the user.
  • The object of the present invention is to increase the efficiency and dust pick up performance of the brush used in the vacuum cleaners.
  • The vacuum cleaner brush realized in order to attain the above object of the present invention is illustrated in the attached drawings, wherein:
    • Figure 1, is the view of the prior art vacuum cleaner brush, shown from the bottom.
    • Figure 2, is the cross-sectional view of the vacuum cleaner brush taken from the line A-A.
    • Figure 3, in the bottom view of the vacuum cleaner brush.
    • Figure 4, is the perspective view of the guide.
  • The reference numerals of the components shown in the drawings:
    1. 1. Brush
    2. 2. Guide
    3. 3. Profile
    4. 4. Suction inlet port
    5. 5. Suction inlet port window
    6. 6. Lateral edge
    7. 7. Base of the brush
    8. 8. Connection part
    9. 9. Pipe
    10. 10. Catch
    11. 11. Wheels
    12. 12. Recess
    13. 13. Front wheel
    14. 14. Thread collector
    15. 15. Boss
  • The flow of the debris sucked in together with air is guided towards the suction inlet port (4) of the vacuum cleaner by means of a guide (2) placed inside the brush (1). The guide (2) consists of symmetrical lateral edges (6) and a suction inlet port window (5) with an opening which matches with the suction inlet port (4). As the lateral edges (6) of the guide (2) are inclined at a certain degree, the losses that may occur at the flow region are minimized. The guide (2) is so placed along the brush (1) that its opening is at the base of the brush. The suction inlet port window (5) provided at the upper portion of the guide (2) overlaps with the suction inlet port (4) and it has a width that matches with the suction inlet port (4). Furthermore, pressure losses are avoided by preventing the dirt laden air from entering the undesired regions of the brush (1) by means of the guide (2). The lateral edges (6) of the guide (2) may also be bent in a convex form as well as in a concave form. It can also consist of straight lateral edges (6) with a certain slope.
  • A turbulence is created inside the guide (2) placed within the brush (1), when the flow reaches to extremely high speeds. A profile (3) is used in order to enhance the performance while directing the debris received in together with air towards the suction inlet port (4). An elliptical profile (3) to direct the flow coming from the front and back of the brush separately towards the suction inlet port (4) with a minimum loss, is placed along the guide in such a manner that it is centrally located in the guide (2). The length of the profile (3) is shorter than that of the guide (2) and the profile (3) is mounted in the recesses (12) provided on both sides of the guide (2) so that no gap is left between the profile (3) and the guide (2). A catch (10) is provided at the point of the profile which matches with the suction inlet port window (5), in order to facilitate the guiding of the debris laden air towards the suction inlet port (4) and to regulate the air flow at the suction inlet port (4) of the brush (1); the surface of which, facing the suction inlet port (4) is straight, whereas the other surface has a certain inclination. The said profile (3) may be elliptical or can be circular or equilateral rectangular.
  • Decreases in pressure losses and in the level of airborne noise are observed by using a guide (2) and a profile (3), thus providing a homogeneous dust suction along the brush (1) as well as minimizing the pressure losses within the brush (1). Consequently, the losses in this part of the cleaner is decreased and efficiency is increased with the reduction of the pressure values created at the brush (1) and at the base of the brush (7).

Claims (8)

  1. A vacuum cleaner brush (1) comprising a suction inlet port (4) from which the debris is sucked in, together with air and characterized with a guide (2) placed inside the brush (1), that directs the debris towards the suction inlet port (4) of the vacuum cleaner, and which comprises symmetrical lateral edges (6) and a suction inlet port window (5) being an opening with a width matching to that of the suction inlet port (4), the said guide (2) being placed along the brush (1) so that its opening lies at the brush base (7) and its suction inlet port window (5) located at the top, overlaps with the suction inlet port (4).
  2. A vacuum cleaner brush as claimed in Claim 1, characterized with a guide (2) having concave lateral edges (6).
  3. A vacuum cleaner brush as claimed in Claim 1, characterized with a guide (2) having convex lateral edges (6).
  4. A vacuum cleaner brush as claimed in Claim 1, characterized with a guide (2) having inclined straight lateral edges.
  5. A vacuum cleaner brush as claimed in Claim 1, characterized with an elliptical profile (3) that directs the flow coming from the front and back of the brush separately towards the suction inlet port (4)-, being placed along the guide (2) in such a manner that it is located in the middle of the guide (2), and the length of which is shorter than that of the guide (2); and recesses (12) that are provided on both sides of the guide (2), in which the profile (3) is mounted so that no gap is left between the profile (3) and the guide (2).
  6. A vacuum cleaner brush as claimed in Claims 1 to 4, characterized with the elliptical profile (3) which is provided with a catch (10) at the point of the profile which matches with the suction inlet port window (5), in order to facilitate the guiding of the debris laden air towards the suction inlet port (4) and to regulate the air flow at the suction inlet port (4) of the brush (1); the surface of which, facing the suction inlet port (4) is straight, whereas the other surface is inclined.
  7. A vacuum clean brush as claimed in Claim 1-5, characterized with a profile (3) that is circular.
  8. A vacuum clean brush as claimed in Claim 1- 5, characterized with a profile (3) that is an equilateral rectangle.
EP01918149.4A 2000-03-10 2001-03-02 Vacuum cleaner nozzle Expired - Lifetime EP1276410B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
TR200000719 2000-03-10
TR200000719 2000-03-10
PCT/TR2001/000009 WO2001065991A1 (en) 2000-03-10 2001-03-02 Vacuum cleaner nozzle

Publications (3)

Publication Number Publication Date
EP1276410A1 EP1276410A1 (en) 2003-01-22
EP1276410B1 true EP1276410B1 (en) 2009-10-07
EP1276410B2 EP1276410B2 (en) 2017-11-15

Family

ID=21622397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01918149.4A Expired - Lifetime EP1276410B2 (en) 2000-03-10 2001-03-02 Vacuum cleaner nozzle

Country Status (6)

Country Link
EP (1) EP1276410B2 (en)
AT (1) ATE444697T1 (en)
AU (1) AU4501501A (en)
DE (1) DE60140113D1 (en)
TR (1) TR200202100T2 (en)
WO (1) WO2001065991A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502004003342D1 (en) * 2004-05-10 2007-05-10 Wessel Werk Gmbh Floor nozzle for vacuum cleaner
KR101012375B1 (en) 2004-07-30 2011-02-09 엘지전자 주식회사 Suction nozzle for vacuum cleaner
WO2019243013A1 (en) 2018-06-19 2019-12-26 Arcelik Anonim Sirketi A vacuum cleaner with cleaning head

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB511761A (en) * 1938-03-12 1939-08-23 Electrolux Ltd Improvements in or relating to nozzles for vacuum cleaners
BE552641A (en) † 1956-11-16
US3210792A (en) † 1964-01-17 1965-10-12 Gen Floorcraft Inc Vacuum mopping device
US4336628A (en) * 1980-06-05 1982-06-29 The Hoover Company Nozzle with pivoted wand
DE8716492U1 (en) † 1987-12-14 1989-04-13 Siemens AG, 1000 Berlin und 8000 München Vacuum cleaner mouthpiece with a tiltable mouthpiece body
KR900006624B1 (en) * 1987-08-06 1990-09-15 마쯔시다덴기산교 가부시기가이샤 Suction nozzle device for unse in vacuum cleaner
DE3732483A1 (en) † 1987-09-26 1989-04-06 Vorwerk Co Interholding Mouthpiece for a vacuum cleaner
DE3801757A1 (en) * 1988-01-22 1989-07-27 Wessel Werk Gmbh Vacuum cleaner nozzle
JPH04200519A (en) * 1990-11-30 1992-07-21 Tokyo Electric Co Ltd Suction port body of vacuum cleaner
JPH09182696A (en) * 1995-12-28 1997-07-15 Tec Corp Suction tool for vacuum cleaner
DE19738046A1 (en) * 1997-08-30 1999-03-11 Wessel Werk Gmbh Static vacuum cleaner nozzle, especially for household vacuum cleaners

Also Published As

Publication number Publication date
AU4501501A (en) 2001-09-17
ATE444697T1 (en) 2009-10-15
EP1276410B2 (en) 2017-11-15
DE60140113D1 (en) 2009-11-19
WO2001065991A1 (en) 2001-09-13
TR200202100T2 (en) 2003-01-21
EP1276410A1 (en) 2003-01-22

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