US3671996A - Rotary brush adjustment device for vacuum cleaner attachment - Google Patents
Rotary brush adjustment device for vacuum cleaner attachment Download PDFInfo
- Publication number
- US3671996A US3671996A US86139A US3671996DA US3671996A US 3671996 A US3671996 A US 3671996A US 86139 A US86139 A US 86139A US 3671996D A US3671996D A US 3671996DA US 3671996 A US3671996 A US 3671996A
- Authority
- US
- United States
- Prior art keywords
- housing
- brush
- plates
- members
- rotation
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0494—Height adjustment of dust-loosening tools
Definitions
- ABSTRACT A device for adjusting the level of a rotary brush mounted inside the housing of a vacuum cleaner' attachment including a driving member mounted for rotation in the housing at one end of the brush and a driven member also mounted for rotation in the housing at the other end of the brush.
- a stationary shaft is eccentrically connected at each end thereof to the driving and driven members for transmitting the rotary movement imparted by the driving member to the driven member so as to simultaneously vary the level of both ends of the stationary shaft.
- the brush is mounted for rotation of the stationary shaft and the level thereof is adjusted by the movement of the stationary shaft.
- Motor-operated brush attachments have been provided nowadays for use with vacuum cleaners in order to provide better cleaning of rugs.
- a rotary brush is normally mounted for rotation within the housing of the vacuum cleaner attachment and, when it is worn out after a certain amount of use, it is replaced by a new one.
- Suchan arrangement is not too convenient because the height of the brush above the floor level is fixed andpre-set to suit'a rug of average thickness.
- the brushes are never used to their full capacity and must be thrown out even if thebristles thereof are still long enough to be put to useful use.
- the device in accordance with the invention, comprises a 1 driving member mounted for rotation on the housing of the vacuum cleaner attachment at one end of thebrush, and a driven member also mounted for rotation on the housing of the vacuum cleaner attachment at the other end of the brush.
- a stationary shaft is eccentrically connected at each end thereof to the driving and driven members for transmitting the rotary movement imparted by the driving member to to the driven member so as to simultaneous vary the level of both ends of the stationary shaft.
- the brush is mounted for rotation on a stationary shaft and the level thereof is controlled by the movement of the stationary shaft.
- the driving member is a control lever which maybe manually rotated a predetermined number. of degrees.
- Such lever is in the shape of a plate having a -number of indexing cams therein per: mitting to set the rotary brush at predetermined levels above the surface of the" floor.
- the cams cooperate with spring loaded means located on the housing of the vacuum cleaner attachment similarly, the driven member is a plate which may also have indexing cams corresponding to the ones of the driving member.
- FIG. 1 illustrates a vacuum cleaner attachment including a rotary brush and an adjustment device for such rotary brush
- FIG. 2 illustrates an exploded view of the various parts of the adjustment device
- FIG. 3 illustrates the operation of the driving member of the adjustment device.
- a rotary brush attachment for a vacuum cleaner comprising a brush l2 rotated by a motor (not shown) through a belt 14.
- the height of the brush above the floor is controlled by means of the level adjustment device in accordance with the invention and comprising generally a driving member 16 and a driven member 18 which are rotatably mounted on the housing of the attachment 10 about an axis of rotation 20, and a rod 22 which is eccentrically connected to members 16 and 18 at a predetermined distance from axis of rotation 20,
- the rotation of the driving member 16 in the directions indicated by arrows 24 and 25 will impart a corresponding rotary movement to driven member 18 through rod 22 so as to simultaneously raise or lower both ends of rod 22.
- Brush 12 is rotatably mounted on rod 22 by means of needle bearing mount 26 which is secured to brush 12 and needle bearing 28 which is disposed on rod 22. The raising or lowering of rod 22 will consequently raise or lower brush 12.
- the driving member 16 and the driven member 18 take the form of end plates which are rotatably mounted in slots 30 provided in the housing of the vacuum cleaner attachment 10, the dimensions of such slots being slightly greater then plates 16 and 18. End plates 16 and 18 are arranged to pivot in the slots 30 about pins 32 inserted in holes 33 and 34 in the plates and the housing.
- End plate 16 is provided with a control lever 35 for rotating the plate a predetermined number of degrees.
- indexing means are provided in at least one of the plates 16 and 18 for detemiining a number of pre-set levels for the rotary brush.
- Such indexing means comprise a number of indexing earns 36 in the form of accurate cuts which cooperate with a spring loaded means located on the housing of the attachment 10.
- spring loaded means includes, in the embodiment disclosed, a spring 38 inserted in a hole 40 in the housing and a steel ball 42 adapted to contact cams 36.
- End plates 16 and 118 further comprise stop means 44 which are adapted to contact the edge of slots 30 for limiting the amount of rotation of the plates. 5
- Rod 22 is provided with a flattened portion 46 at both ends thereof which cooperate with slots 48 in end plates 16 and 18. Such a connection is advantageous in that it permits to easily couple driving plate 16 to driven plate 18. ln'addition, brush 12 may be easily dismantled by removing one of the end plates and withdrawing the brush.
- the height of brush 12 above ground is selected by operating lever 35 which will permitto position the end plate 16 in one of its pre-set positions.
- the rotation of driving plate 16 will rotate driven plate 18 which is coupled thereto by means of rod 22 so as to simultaneously control both ends of the brush 12 mounted on rod 22. Consequently, there will be no need for adjusting both ends of the brush separately.
- a device for adjusting the level of a rotary brush mounted inside the housing of a vacuum cleaner attachment comprisa.
- a driving member mounted for rotation on said housing at one end of said member; h
- a driven member mounted for rotation on said housing at the other end of said brush
- said driving member includes a control lever for rotating said driving member a predetermined number of degrees.
- indexing means comprise a plurality of indexing carns located on at least one of said members and spring loaded means located on said housing and cooperating with said cams.
- said spring loaded means comprise a spring located in a hole in said housing and a steel ball biased by said spring against said indexing cam.
- each of said members has an elongated slot therein and wherein said shafi has a flattened portion protruding through said elongated slot for coupling said shaft to said members.
Abstract
Description
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8613970A | 1970-11-02 | 1970-11-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3671996A true US3671996A (en) | 1972-06-27 |
Family
ID=22196525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US86139A Expired - Lifetime US3671996A (en) | 1970-11-02 | 1970-11-02 | Rotary brush adjustment device for vacuum cleaner attachment |
Country Status (1)
Country | Link |
---|---|
US (1) | US3671996A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3825972A (en) * | 1973-04-23 | 1974-07-30 | Scott & Fetzer Co | Shag rug fluffer |
FR2423199A2 (en) * | 1978-04-20 | 1979-11-16 | Vorwerk Co Interholding | APPLIANCE FOR MAINTENANCE OF FLOORS AND SUCTION OF DUST, IN PARTICULAR MOUTH ADAPTABLE TO A VACUUM CLEANER |
US6134745A (en) * | 1998-02-13 | 2000-10-24 | Dupro Ag | Vacuum cleaning tool having a brush roller that can be pivoted out |
US6802098B2 (en) * | 2000-05-09 | 2004-10-12 | Tennant Company | Cylindrical brush idler-side taper adjustment assembly |
WO2006001865A1 (en) * | 2004-04-05 | 2006-01-05 | Oreck Holdings, Llc | Height adjustment apparatus for a rotatable component of a vacuum cleaner |
US20100192323A1 (en) * | 2009-02-04 | 2010-08-05 | Dyson Technology Limited | Surface treating head assembly |
US20110047746A1 (en) * | 2009-09-01 | 2011-03-03 | Mark Butts | Vacuum cleaner accessory tool having a removable brush |
EP2417892A1 (en) * | 2009-06-30 | 2012-02-15 | LG Electronics Inc. | Robot cleaner |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1309092A (en) * | 1919-07-08 | Herbert w | ||
US1324195A (en) * | 1919-12-09 | Howard earl hoover | ||
US2614283A (en) * | 1949-07-08 | 1952-10-21 | Clements Mfg Co | Automatic nozzle adjustment for vacuum cleaners and the like |
-
1970
- 1970-11-02 US US86139A patent/US3671996A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1309092A (en) * | 1919-07-08 | Herbert w | ||
US1324195A (en) * | 1919-12-09 | Howard earl hoover | ||
US2614283A (en) * | 1949-07-08 | 1952-10-21 | Clements Mfg Co | Automatic nozzle adjustment for vacuum cleaners and the like |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3825972A (en) * | 1973-04-23 | 1974-07-30 | Scott & Fetzer Co | Shag rug fluffer |
FR2423199A2 (en) * | 1978-04-20 | 1979-11-16 | Vorwerk Co Interholding | APPLIANCE FOR MAINTENANCE OF FLOORS AND SUCTION OF DUST, IN PARTICULAR MOUTH ADAPTABLE TO A VACUUM CLEANER |
US4221019A (en) * | 1978-04-20 | 1980-09-09 | Vorwerk & Co Interhaolding GmbH | Floorcare device |
US6134745A (en) * | 1998-02-13 | 2000-10-24 | Dupro Ag | Vacuum cleaning tool having a brush roller that can be pivoted out |
US6802098B2 (en) * | 2000-05-09 | 2004-10-12 | Tennant Company | Cylindrical brush idler-side taper adjustment assembly |
WO2006001865A1 (en) * | 2004-04-05 | 2006-01-05 | Oreck Holdings, Llc | Height adjustment apparatus for a rotatable component of a vacuum cleaner |
US7305736B2 (en) | 2004-04-05 | 2007-12-11 | Oreck Holdings, Llc | Height adjustment apparatus for a rotatable component of a vacuum cleaner |
GB2467542A (en) * | 2009-02-04 | 2010-08-11 | Dyson Technology Ltd | Height adjusting arrangement for an agitator |
US20100192323A1 (en) * | 2009-02-04 | 2010-08-05 | Dyson Technology Limited | Surface treating head assembly |
US8132288B2 (en) | 2009-02-04 | 2012-03-13 | Dyson Technology Limited | Surface treating head assembly |
GB2467542B (en) * | 2009-02-04 | 2012-09-12 | Dyson Technology Ltd | Surface treating head assembly |
EP2417892A1 (en) * | 2009-06-30 | 2012-02-15 | LG Electronics Inc. | Robot cleaner |
EP2417892A4 (en) * | 2009-06-30 | 2013-08-28 | Lg Electronics Inc | Robot cleaner |
US8832902B2 (en) | 2009-06-30 | 2014-09-16 | Lg Electronics Inc. | Robot cleaner |
US20110047746A1 (en) * | 2009-09-01 | 2011-03-03 | Mark Butts | Vacuum cleaner accessory tool having a removable brush |
US8037571B2 (en) * | 2009-09-01 | 2011-10-18 | Techtronic Floor Care Technology Limited | Vacuum cleaner accessory tool having a removable brush |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FIRST NATIONAL BANK OF BOSTON, THE Free format text: SECURITY INTEREST;ASSIGNOR:EL ACQUISITION CORPORATION;REEL/FRAME:004923/0862 Effective date: 19871030 |
|
AS | Assignment |
Owner name: WELLS FARGO & CO. Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION A CORP. OF DE.;REEL/FRAME:005195/0287 Effective date: 19891024 Owner name: FIRST BOSTON MEZZANINE INVESTMENT PARTNERSHIP - 9 Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION A CORP. OF DE.;REEL/FRAME:005195/0287 Effective date: 19891024 Owner name: BANCBOSTON INVESTMENTS INC., Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION A CORP. OF DE.;REEL/FRAME:005195/0287 Effective date: 19891024 Owner name: FIRST BOSTON SECURITIES CORP. Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION A CORP. OF DE.;REEL/FRAME:005195/0287 Effective date: 19891024 Owner name: WESRAY CAPITAL CORPORATION Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION A CORP. OF DE.;REEL/FRAME:005195/0287 Effective date: 19891024 |
|
AS | Assignment |
Owner name: FIRST BOSTON SECURITIES CORP. Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION;REEL/FRAME:005206/0691 Effective date: 19891024 Owner name: BANCBOSTON INVESTMENTS INC. Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION;REEL/FRAME:005206/0691 Effective date: 19891024 Owner name: WELLS FARGO & CO. Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION;REEL/FRAME:005206/0691 Effective date: 19891024 Owner name: FIRST BOSTON MEZZANINE INVESTMENT PARTNERSHIP - 9 Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION;REEL/FRAME:005206/0691 Effective date: 19891024 Owner name: WESRAY CAPITAL CORPORATION Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION;REEL/FRAME:005206/0691 Effective date: 19891024 |
|
AS | Assignment |
Owner name: EL ACQUISITION CORPORATION, N/K/A ELECTROLUX CORP. Free format text: RELEASE OF SECURITY INTEREST;ASSIGNOR:BANKBOSTON NA;REEL/FRAME:009580/0655 Effective date: 19980831 |
|
AS | Assignment |
Owner name: ELECTROLUX CORPORATION, CONNECTICUT Free format text: RELEASE OF SECURITY INTEREST;ASSIGNORS:BANCBOSTON INVESTMENTS, INC.;WELLS FARGO & CO.;FIRST BOSTON MEZZANINE INVESTMENT PARTNERSHIP - 9;AND OTHERS;REEL/FRAME:009773/0310 Effective date: 19980831 |