US20040134026A1 - Air-flow routing in the bottom part of a vacuum cleaner - Google Patents

Air-flow routing in the bottom part of a vacuum cleaner Download PDF

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Publication number
US20040134026A1
US20040134026A1 US10/680,321 US68032103A US2004134026A1 US 20040134026 A1 US20040134026 A1 US 20040134026A1 US 68032103 A US68032103 A US 68032103A US 2004134026 A1 US2004134026 A1 US 2004134026A1
Authority
US
United States
Prior art keywords
suction
opening
vacuum cleaner
flow path
dust chamber
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
US10/680,321
Other languages
English (en)
Inventor
Helmut Brinkhoff
Volker Gerth
Gunter Gloning
Udo Mersmann
Michael Poetting
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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
Priority claimed from DE2002146674 external-priority patent/DE10246674B4/de
Priority claimed from DE2002146675 external-priority patent/DE10246675B4/de
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Assigned to MIELE & CIE. KG reassignment MIELE & CIE. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GLONING, GUNTER, GERTH, VOLKER, BRINKHOFF, HELMUT, MERSMANN, UDO, POETTING, MICHAEL
Publication of US20040134026A1 publication Critical patent/US20040134026A1/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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/32—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with means for connecting a hose
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • 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
    • A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action

Definitions

  • the present invention relates generally to vacuum cleaners, and particularly to a vacuum cleaner including a handle and a bottom part with two flows paths guided into a dust chamber via a common inlet opening.
  • a vacuum cleaner having a bottom-side suction opening and an additional suction opening for a suction hose is known from U.S. Pat. No. 6,317,920 B1.
  • the known vacuum cleaner has an approximately square dust chamber that is bounded by dust-chamber walls and has an inlet opening formed in the front wall and rear wall for the air sucked in by the fan unit.
  • the inlet opening in the front wall leads via a first flow path to the bottom-side suction opening whereas the inlet opening in the rear wall is in communication with the additional suction opening via a second separate flow path.
  • This vacuum cleaner has a Y-shaped elastic suction nozzle where flow paths from a bottom-side suction opening and from an additional and upwardly directed suction opening for connecting a suction hose jointly open into a short tubular member.
  • This short tubular member extends into a dust chamber where it serves to receive a conventional dust-collecting device having a single inlet opening, in particular dust bags.
  • the suction nozzle contains a disk spring-like diaphragm upstream of the mouth, the disk spring-like diaphragm allowing manual closure of the air passage to the short tubular member. The user can move this diaphragm into its closed position by compressing the elastic suction nozzle and into its open position by expansion.
  • the present invention provides a vacuum cleaner 1 having a handle 5 and a bottom part 4 , the handle 5 being swivel-mounted to the bottom part 4 via an articulated joint 9 and the bottom part 4 containing at least one bottom-side suction opening 18 ; a dust chamber 13 bounded by dust chamber walls 25 , 31 ; a fan unit; and additional suction opening 19 for a suction hose 7 .
  • a first flow path 20 through the bottom-side suction opening 18 and a separate parallel flow path 21 through the additional suction opening 19 are guided into the dust chamber 13 via a common inlet opening.
  • the two flow paths 20 , 21 are arranged in the bottom part 4 and guided into the inlet opening together and approximately parallel to each other by a flow-guide element 28 located between the two flow paths 20 , 21 , the inlet opening being provided in one of the dust chamber walls 25 , 31 .
  • the flow-guide element located between the two flow paths is formed by a dividing wall that divides the short tubular member into a first inlet region and a second inlet region, the first flow path opening into the first inlet region and the second flow path opening into the second inlet region.
  • a further embodiment of the present invention provides for one of the two flow paths to run parallel to a dust chamber wall at least in one region. Due to this flow path configuration, the dust chamber wall serves both to bound the dust chamber and to guide the air of the parallel flow path.
  • the suction hose in which the additional suction opening and the suction hose are in fluid communication and the suction opening of the suction hose can be closed by a closing element, provision is made for the suction hose to be in fluid communication with a secondary air device that allows adjustment of the vacuum in the second parallel flow path when the suction opening is closed, and thus, of the suction power at the bottom-side suction opening.
  • This design allows the secondary air device to be placed at an ergonomically convenient location for the user, eliminating the need for it to be provided on the bottom part in the flow path to the bottom-side floor nozzle.
  • FIG. 1 is a side view of a vacuum cleaner including a handle with a parking fixture for a suction hose as well as a bottom part;
  • FIG. 2 is a perspective view of the lower shell of the bottom part of FIG. 1 with mounted articulated joint;
  • FIG. 3 shows the lower shell of FIG. 2 from a different perspective
  • FIG. 4 is a perspective view of the lower shell of FIG. 3 without the articulated joint
  • FIG. 5 is a side view of the parking fixture of the vacuum cleaner of FIG. 1 with the secondary air device in an open position;
  • FIG. 6 is a schematic sectional view of the parking fixture.
  • Vacuum cleaner 1 shown in FIG. 1 has a bottom part 4 that can be rolled on front wheels 2 and rear wheels 3 , a handle 5 with a hand grip 6 , and a suction hose 7 .
  • Handle 5 is swivel-mounted to bottom part 4 via a quiver 8 for holding suction hose 7 and an articulated joint 9 supported at the end face in the region of rear wheels 3 .
  • bottom part 4 has a housing including a lower shell 10 , an upper shell 11 and two adjacent hinged covers 12 . 1 , 12 . 2 .
  • a dust chamber 13 containing a dust-collecting device is located below first cover 12 . 1
  • a receiving chamber 15 containing a fan unit is located below second cover 12 . 2 (see FIGS. 2, 3, 4 ).
  • FIGS. 2 through 4 show lower shell 10 in a perspective view.
  • receiving chamber 15 for accommodating the fan unit and dust chamber 13 for receiving a dust-collecting device are formed by walls; dust chamber 13 and receiving chamber 15 being immediately adjacent to each other, and the front wall of receiving chamber 15 being formed by a portion of dust chamber rear wall 17 .
  • lower shell 10 has formed therein a bottom-side suction opening 18 , an additional suction opening 19 to which can be connected suction hose 7 , and two flow paths 20 , 21 .
  • First flow path 20 and second flow path 21 connect dust chamber 13 to bottom-side suction opening 18 and to additional suction opening 19 , respectively.
  • Bottom-side suction opening 18 is provided centrally on lower shell 10 , ahead of front wheels 2 in working direction A. Bottom-side suction opening 18 extends substantially vertically into lower shell 10 and opens into first flow path 20 .
  • Additional suction opening 19 is formed by a bearing for articulated joint 9 (see FIG. 4), articulated joint 9 having a through-channel for suction hose 7 through which the fluid communication can be established between additional suction opening 19 and suction hose 7 .
  • additional suction opening 19 can be formed by a separate housing opening to which suction hose 7 can be connected in a manner known per se.
  • Rectangular-shaped dust chamber 13 is located at a short distance behind front wheels 2 in working direction A of vacuum cleaner 1 .
  • an outlet opening 24 to receiving chamber 15 of the fan unit; the fan unit bearing against the outlet opening with the suction side when the vacuum cleaner is in the assembled state.
  • a short tubular member 26 As an inlet opening to dust chamber 13 which extends into dust chamber 13 and through which flow paths 20 , 21 , which run towards each other in the direction of flow (see FIG. 3), are guided into dust chamber 13 together and approximately parallel to each other.
  • short tubular member 26 extends into dust chamber 13 .
  • the short tubular member has a rigid design, but can also be made from an elastic material.
  • flow-guide element 28 In order for even heavy particles to maintain their predetermined flow path 20 , 21 during vacuuming and not to flow past the inlet opening into the other flow path because of their high kinetic energy, the two flow paths 20 , 21 are separated from each other by a flow-guide element 28 .
  • flow-guide element 28 is formed by a straight dividing wall.
  • flow-guide element 28 can also be formed by a contour that is more convenient in terms of fluid mechanics, for example, a radius.
  • the dividing wall extends up and into short tubular member 26 , dividing it into a first inlet region 32 a and a second inlet region 32 b . Due to the attachment of the dividing wall in short tubular member 26 , the dividing wall is secured in a stable manner.
  • the alignment of a dust bag opening with respect to the inlet opening is normally accomplished in that a holding plate arranged around the dust bag opening is moved along the inlet opening toward dust chamber bottom 29 until the dust bag opening is level with the inlet opening.
  • the lower portion of the straight dividing wall is designed as a guide slope that extends at an angle from the center of the short tubular member toward the dust chamber bottom, the lower portion of the guide slope slightly projecting beyond short tubular member 26 into dust chamber 13 at the height of the bottom 26 . 1 of the short tubular member.
  • First flow path 20 runs along the outer face of dust chamber front wall 31 and along dust chamber wall 25 , which is to the right as viewed in working direction A, so that these dust chamber walls 31 , 25 serve both as boundary walls for dust chamber 13 and for guiding first flow path 20 .
  • second flow path 21 uses the rear portion of right dust chamber wall 25 as viewed in working direction A.
  • a closing element that is designed as a parking fixture 33 is secured on the telescoping handle 6 near hand grip 6 a for closing suction hose 7 , it being possible for the suction-side suction hose end 34 or the accessory 35 connected thereto to be received or parked in the closing element in a positive-locking, substantially airtight and detachable manner.
  • parking fixture 33 includes a receiving region 36 which is positive locking on the peripheral side with respect to accessory 35 and which has a receiving opening 37 .
  • Receiving opening 37 points in a direction facing away from hand grip 6 a .
  • receiving region 36 is spring-biased and designed in such a manner that it can be moved in the direction of hand grip 6 a against the force of spring 38 .
  • receiving region 36 is pushed up into its upper end position in the direction of hand grip 6 a against the force of spring 38 , the positive connection to accessory 35 is released.
  • the receiving region is returned down to its original position by the force of spring 38 , thus securing the accessory 35 parked as shown in FIGS. 1, 5 and 6 .
  • a secondary air device in the form of a secondary air slide 39 is arranged at receiving region 36 .
  • secondary air slide 39 is guided by its grooves 40 with their stop edges 41 a , 41 b , which are provided on the side walls, and by ribs 42 that are formed at receiving region 36 and engage with grooves 40 .
  • This design allows secondary air slide 39 to be gradually moved down to its lower end position in the direction of the handle end on the side of the articulated joint, in which position the ribs 42 abut against upper stop edges 41 a . In doing so, a correspondingly large secondary air opening 43 is cleared.
  • the fan unit sucks in air L through floor nozzle 18 and also through secondary air opening 43 , allowing the suction power at bottom-side suction opening 18 to be gradually adjusted by changing the size of secondary air opening 43 with secondary air slide 39 . This eliminates the need for a secondary air adjusting device at the floor nozzle.
  • the secondary air device is not limited to the vacuum cleaner according to the present invention with the special design of the two flow paths. Rather, the secondary air device can be used on all vacuum cleaners which have a bottom-side suction opening and a suction hose, and in which the flow paths of the suction hose and the bottom-side suction opening are in parallel and in fluid communication.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
US10/680,321 2002-10-07 2003-10-07 Air-flow routing in the bottom part of a vacuum cleaner Abandoned US20040134026A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEDE10246675.0 2002-10-07
DE2002146674 DE10246674B4 (de) 2002-10-07 2002-10-07 Staubsauger mit einem Stiel und Bodenteil
DEDE10246674.2 2002-10-07
DE2002146675 DE10246675B4 (de) 2002-10-07 2002-10-07 Staubsauger mit einer Gebläsevorrichtung, einem Staubraum, einer Bodendüse und einem Saugschlauch

Publications (1)

Publication Number Publication Date
US20040134026A1 true US20040134026A1 (en) 2004-07-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US10/680,321 Abandoned US20040134026A1 (en) 2002-10-07 2003-10-07 Air-flow routing in the bottom part of a vacuum cleaner

Country Status (2)

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US (1) US20040134026A1 (fr)
EP (1) EP1407703A2 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102123644A (zh) * 2008-08-13 2011-07-13 Bsh博施及西门子家用器具有限公司 吸尘器
US20130152333A1 (en) * 2008-03-14 2013-06-20 Techtronic Floor Care Technology Limited Battery powered cordless cleaning system
WO2013134630A1 (fr) * 2012-03-09 2013-09-12 Euro-Pro Operating Llc Appareil de nettoyage de surface présentant une poignée réglable
US9295363B1 (en) 2014-12-17 2016-03-29 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US20160174794A1 (en) * 2014-12-17 2016-06-23 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9545180B2 (en) 2014-12-17 2017-01-17 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9668630B2 (en) 2014-12-17 2017-06-06 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9668624B2 (en) 2014-12-17 2017-06-06 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9717383B2 (en) 2014-12-17 2017-08-01 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9775480B2 (en) 2014-12-17 2017-10-03 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9775481B2 (en) 2014-12-17 2017-10-03 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9795264B2 (en) 2014-12-17 2017-10-24 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9883781B2 (en) 2014-12-17 2018-02-06 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9901229B2 (en) 2014-12-17 2018-02-27 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US10022027B2 (en) 2014-12-17 2018-07-17 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US10357136B2 (en) 2014-12-17 2019-07-23 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US11202544B2 (en) 2014-12-17 2021-12-21 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
CN114652197A (zh) * 2020-12-23 2022-06-24 宁波方太厨具有限公司 一种用于清洁机的刷头模块及清洁机
US11980334B2 (en) 2017-09-15 2024-05-14 Omachron Intellectual Property Inc. Surface cleaning apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070106526A (ko) 2005-01-18 2007-11-01 일렉트로룩스 홈 케어 프로덕츠, 인크. 접철식 손잡이를 갖는 진공청소기

Citations (4)

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US4573236A (en) * 1983-07-08 1986-03-04 Prototypes, Ltd. Vacuum cleaning appliances
US4811450A (en) * 1987-08-27 1989-03-14 Ryobi Motor Products Corp. Vacuum cleaner with improved auxiliary cleaning
US5355549A (en) * 1992-03-13 1994-10-18 Amway Corporation Diverter valve for vacuum cleaner apparatus
US6317920B1 (en) * 1998-11-30 2001-11-20 Royal Appliance Mfg. Co. Vacuum cleaner with above-floor cleaning tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573236A (en) * 1983-07-08 1986-03-04 Prototypes, Ltd. Vacuum cleaning appliances
US4811450A (en) * 1987-08-27 1989-03-14 Ryobi Motor Products Corp. Vacuum cleaner with improved auxiliary cleaning
US5355549A (en) * 1992-03-13 1994-10-18 Amway Corporation Diverter valve for vacuum cleaner apparatus
US6317920B1 (en) * 1998-11-30 2001-11-20 Royal Appliance Mfg. Co. Vacuum cleaner with above-floor cleaning tool

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10568481B2 (en) 2008-03-14 2020-02-25 Techtronic Floor Care Technology Limited Battery powered cordless cleaning system
US20130152333A1 (en) * 2008-03-14 2013-06-20 Techtronic Floor Care Technology Limited Battery powered cordless cleaning system
US8671509B2 (en) 2008-03-14 2014-03-18 Techtronic Floor Care Technology Limited Battery powered cordless cleaning system
US8756753B2 (en) * 2008-03-14 2014-06-24 Techtronic Floor Care Technology Limited Battery powered cordless cleaning system
US9504364B2 (en) 2008-03-14 2016-11-29 Techtronic Floor Care Technology Limited Battery powered cordless cleaning system
CN102123644A (zh) * 2008-08-13 2011-07-13 Bsh博施及西门子家用器具有限公司 吸尘器
WO2013134630A1 (fr) * 2012-03-09 2013-09-12 Euro-Pro Operating Llc Appareil de nettoyage de surface présentant une poignée réglable
US9955831B2 (en) 2012-03-09 2018-05-01 Sharkninja Operating Llc Surface cleaning apparatus with an adjustable handle
US11672397B2 (en) 2014-12-17 2023-06-13 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9901229B2 (en) 2014-12-17 2018-02-27 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9668624B2 (en) 2014-12-17 2017-06-06 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9717383B2 (en) 2014-12-17 2017-08-01 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9775480B2 (en) 2014-12-17 2017-10-03 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9545180B2 (en) 2014-12-17 2017-01-17 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US20160174794A1 (en) * 2014-12-17 2016-06-23 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9795264B2 (en) 2014-12-17 2017-10-24 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9883781B2 (en) 2014-12-17 2018-02-06 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9668630B2 (en) 2014-12-17 2017-06-06 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9775481B2 (en) 2014-12-17 2017-10-03 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US10022027B2 (en) 2014-12-17 2018-07-17 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US10357136B2 (en) 2014-12-17 2019-07-23 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US9295363B1 (en) 2014-12-17 2016-03-29 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US11013383B2 (en) 2014-12-17 2021-05-25 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US11202544B2 (en) 2014-12-17 2021-12-21 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US11786095B2 (en) 2014-12-17 2023-10-17 Omachron Intellectual Property Inc. Surface cleaning apparatus
US9775479B2 (en) * 2014-12-17 2017-10-03 Omachron Intellectual Property Inc. All in the head surface cleaning apparatus
US11980334B2 (en) 2017-09-15 2024-05-14 Omachron Intellectual Property Inc. Surface cleaning apparatus
CN114652197A (zh) * 2020-12-23 2022-06-24 宁波方太厨具有限公司 一种用于清洁机的刷头模块及清洁机

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Publication number Publication date
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Legal Events

Date Code Title Description
AS Assignment

Owner name: MIELE & CIE. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BRINKHOFF, HELMUT;GERTH, VOLKER;GLONING, GUNTER;AND OTHERS;REEL/FRAME:015183/0266;SIGNING DATES FROM 20031008 TO 20031014

STCB Information on status: application discontinuation

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