US20050044655A1 - Vacuum sweeper brushroll with magnet assembly - Google Patents
Vacuum sweeper brushroll with magnet assembly Download PDFInfo
- Publication number
- US20050044655A1 US20050044655A1 US10/650,306 US65030603A US2005044655A1 US 20050044655 A1 US20050044655 A1 US 20050044655A1 US 65030603 A US65030603 A US 65030603A US 2005044655 A1 US2005044655 A1 US 2005044655A1
- Authority
- US
- United States
- Prior art keywords
- spindle
- brushroll
- hole
- magnet
- vacuum sweeper
- 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
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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
- A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
-
- 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
-
- 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
Definitions
- the present invention relates generally to vacuum sweepers, and more specifically to a vacuum sweeper brushroll which carries a magnet for activating an indicator on the sweeper, such as an LED light, during rotation of the brushroll.
- Some electric vacuum sweepers include an LED light which is activated by a magnet carried by the brushroll.
- the purpose of the LED light is to provide a visual indication that the brushroll is rotating properly.
- a conventional brushroll magnet assembly comprises a molded plastic ring having at least one pocket which contains a magnet. If desired, the molded ring may have one or more pockets that are rotationally opposed to the magnet and carry counter weights. The molded ring containing the preassembled magnets and counter weights is press fitted over an end of the brushroll. In an attempt to assure a tight fit and prevent relative rotation of the ring and the brushroll which may rotate at a speed of 5000 rpm, it has been conventional to form the molded ring with ribs on its inner periphery.
- An object of the present invention is to provide an improved way of mounting an activation magnet in association with a vacuum sweeper brushroll that overcomes the problems of the prior art described above.
- a hole is formed in the side of spindle and a magnet suitable for activating an indicator, such as an LED sensor, is pressed into the hole so that rotation of the spindle when assembled in a vacuum sweeper can be detected by movement of the magnet past the sensor.
- a second hole rotationally opposed to the magnet is formed in the side of the spindle and a counter weight is mounted in the second hole. The counter weight assures balanced rotation of the brushroll at high speeds.
- the invention reduces the cost of making a vacuum sweeper brushroll, since it does not require a magnet carrying ring molded in a separate manufacturing operation.
- the manufacture of the brushroll is simplified, since all that is required is to drill a hole in spindle and press fit a suitable magnet into the hole. With the arrangement of the present invention, there is no danger of a separately molded ring loosening on the spindle as a result of high speed rotation.
- FIG. 1 is a side elevational view of a typical brushroll that includes an activation magnet according to the present invention
- FIG. 2 is a fragmentary view, partially in cross-section, of a portion of the spindle indicated in FIG. 1 ;
- FIG. 3 is a cross-sectional view taken in the plane 3 - 3 of FIG. 2 ;
- FIG. 4 diagrammatical view showing how the brushroll of the invention is mounted in a vacuum sweeper in operative association with an LED sensor and light.
- a typical vacuum sweeper brushroll is generally indicated by reference numeral 10 .
- the brushroll 10 includes a spindle or dowel 20 which is usually made of wood and rows of bristle tufts 30 which agitate the carpet to loosen dirt as the brushroll is rotated.
- the spindle 20 includes a pulley 31 at one end of the dowel.
- the spindle or dowel 20 is rotatably supported at each end by end assemblies 35 .
- the end assemblies 35 can be of any known construction such as disclosed, for example, in U.S. Pat. No. 5,373,603, the disclosure of which is incorporated herein by reference.
- the end assemblies 35 include bearings (not shown) and end caps 36 that can be engaged in a vacuum sweeper nozzle to rotatably position the brushroll 10 in the mouth of the nozzle.
- the illustrated end assemblies 35 include pins 38 that are press fitted in the ends of the dowel 20 .
- a hole 40 is drilled in the side of the dowel 20 and opens on its outer surface.
- a ball magnet 45 is press fitted into the hole 40 .
- a plurality of ball magnets can be inserted in side-by-side holes in the dowel 20 .
- the ball magnet 45 is selected with a magnetic strength to activate an indicator in the sweeper.
- a ball magnet having a magnetic strength of 4000 Gauss has been used to activate an LED sensor; although lesser magnetic strengths are suitable depending upon the coil in the LED assembly.
- the brushroll 10 is shown mounted in the mouth of a vacuum sweeper nozzle 50 .
- An LED light 51 visible on the upper surface of the nozzle 50 is electrically connected to the coil (not shown) of a sensor 52 which has a pole 53 adjacent the brushroll spindle 20 and the rotation path of the magnet 45 .
- the ball magnet 45 passes the pole 53 of the LED assembly which causes the coil of the LED assembly to generate enough power to turn on the LED. Activation of the LED provides visual indication that the brushroll is turning.
- the invention provides a unique way of activating an LED light or other indicator of a vacuum sweeper, and that the invention can be carried out faster and cheaper than the prior art arrangement wherein a magnet is carried in a separately molded ring press fitted onto the brushroll spindle.
- a magnet is carried in a separately molded ring press fitted onto the brushroll spindle.
- the need for a separately molded part is eliminated, and all that is necessary is to drill a hole in the spindle and press a ball magnet into the hole.
- This arrangement also avoids the danger of a molded ring loosening on the spindle so that the spindle spins inside the ring.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Brushes (AREA)
Abstract
A vacuum sweeper brushroll having a ball magnet fitted into a hole in the outer peripheral surface of the brushroll spindle in position to activate an indicator, such as an LED assembly, during rotation of the brushroll.
Description
- The present invention relates generally to vacuum sweepers, and more specifically to a vacuum sweeper brushroll which carries a magnet for activating an indicator on the sweeper, such as an LED light, during rotation of the brushroll.
- Some electric vacuum sweepers include an LED light which is activated by a magnet carried by the brushroll. The purpose of the LED light is to provide a visual indication that the brushroll is rotating properly.
- A conventional brushroll magnet assembly comprises a molded plastic ring having at least one pocket which contains a magnet. If desired, the molded ring may have one or more pockets that are rotationally opposed to the magnet and carry counter weights. The molded ring containing the preassembled magnets and counter weights is press fitted over an end of the brushroll. In an attempt to assure a tight fit and prevent relative rotation of the ring and the brushroll which may rotate at a speed of 5000 rpm, it has been conventional to form the molded ring with ribs on its inner periphery.
- The expense of molding the magnet ring adds to the cost of making the brushroll. In addition, the steps of pressing the magnets into the pockets of the ring and then press fitting the ring on the brushroll complicates the manufacturing procedure and is time consuming.
- An object of the present invention is to provide an improved way of mounting an activation magnet in association with a vacuum sweeper brushroll that overcomes the problems of the prior art described above.
- In accordance with the invention, a hole is formed in the side of spindle and a magnet suitable for activating an indicator, such as an LED sensor, is pressed into the hole so that rotation of the spindle when assembled in a vacuum sweeper can be detected by movement of the magnet past the sensor. In an exemplary embodiment, a second hole rotationally opposed to the magnet is formed in the side of the spindle and a counter weight is mounted in the second hole. The counter weight assures balanced rotation of the brushroll at high speeds.
- The invention reduces the cost of making a vacuum sweeper brushroll, since it does not require a magnet carrying ring molded in a separate manufacturing operation. The manufacture of the brushroll is simplified, since all that is required is to drill a hole in spindle and press fit a suitable magnet into the hole. With the arrangement of the present invention, there is no danger of a separately molded ring loosening on the spindle as a result of high speed rotation.
- Other advantages and a fuller understanding of the invention will be had from the following detailed description and the accompanying drawings.
-
FIG. 1 is a side elevational view of a typical brushroll that includes an activation magnet according to the present invention; -
FIG. 2 is a fragmentary view, partially in cross-section, of a portion of the spindle indicated inFIG. 1 ; -
FIG. 3 is a cross-sectional view taken in the plane 3-3 ofFIG. 2 ; and -
FIG. 4 diagrammatical view showing how the brushroll of the invention is mounted in a vacuum sweeper in operative association with an LED sensor and light. - In the drawings, a typical vacuum sweeper brushroll is generally indicated by
reference numeral 10. Thebrushroll 10 includes a spindle ordowel 20 which is usually made of wood and rows ofbristle tufts 30 which agitate the carpet to loosen dirt as the brushroll is rotated. In the illustrated embodiment, thespindle 20 includes apulley 31 at one end of the dowel. - The spindle or
dowel 20 is rotatably supported at each end byend assemblies 35. Theend assemblies 35 can be of any known construction such as disclosed, for example, in U.S. Pat. No. 5,373,603, the disclosure of which is incorporated herein by reference. Theend assemblies 35 include bearings (not shown) andend caps 36 that can be engaged in a vacuum sweeper nozzle to rotatably position thebrushroll 10 in the mouth of the nozzle. The illustratedend assemblies 35 includepins 38 that are press fitted in the ends of thedowel 20. - It will be appreciated that there are many different brushroll constructions known in the art. The particular one described above and shown in the drawings is not part of the invention, and merely illustrates one known brushroll in which the invention can be used to advantage.
- In accordance with the invention, a
hole 40 is drilled in the side of thedowel 20 and opens on its outer surface. Aball magnet 45 is press fitted into thehole 40. If desired, a plurality of ball magnets can be inserted in side-by-side holes in thedowel 20. Theball magnet 45 is selected with a magnetic strength to activate an indicator in the sweeper. As an example, a ball magnet having a magnetic strength of 4000 Gauss has been used to activate an LED sensor; although lesser magnetic strengths are suitable depending upon the coil in the LED assembly. - As shown, it is possible to drill a
hole 41 in thedowel 20 for receiving acounter weight ball 46, thehole 41 andcounter weight 46 being rotationally opposed to thehole 40 andmagnet 45. As in the case of themagnet 45, a plurality of side-by-side counter weights can be provided, if desired. - Referring now to
FIG. 4 , thebrushroll 10 is shown mounted in the mouth of avacuum sweeper nozzle 50. AnLED light 51 visible on the upper surface of thenozzle 50 is electrically connected to the coil (not shown) of asensor 52 which has apole 53 adjacent thebrushroll spindle 20 and the rotation path of themagnet 45. As thebrushroll 10 rotates, theball magnet 45 passes thepole 53 of the LED assembly which causes the coil of the LED assembly to generate enough power to turn on the LED. Activation of the LED provides visual indication that the brushroll is turning. - It will be seen from the foregoing that the invention provides a unique way of activating an LED light or other indicator of a vacuum sweeper, and that the invention can be carried out faster and cheaper than the prior art arrangement wherein a magnet is carried in a separately molded ring press fitted onto the brushroll spindle. The need for a separately molded part is eliminated, and all that is necessary is to drill a hole in the spindle and press a ball magnet into the hole. This arrangement also avoids the danger of a molded ring loosening on the spindle so that the spindle spins inside the ring.
- Many modifications and variations of the invention will be apparent to those skilled in the art in light of the foregoing detailed disclosure. Therefore, it is to be understood, that within the scope of the appended claims, the invention can be practiced otherwise and as specifically shown and described.
Claims (5)
1. In a vacuum sweeper brushroll including a spindle and bristle tufts carried by the spindle, the improvement comprising a hole in the side of the spindle and a magnet fixed in said hole.
2. A vacuum sweeper brushroll as claimed in claim 1 wherein said spindle includes a counter weight rotationally opposed to said magnet.
3. In a vacuum sweeper brushroll including a spindle and bristle tufts carried by said spindle, the improvement comprising a first hole having an opening on the outer peripheral surface of said spindle, a ball magnet fitted in said first hole, a second hole rotationally opposed to said first hole having an opening on the outer peripheral surface of said spindle, and a counter weight fitted in said second hole.
4. In a vacuum sweeper having a rotatable brush roll including a spindle and bristle tufts carried by said spindle, a nozzle, a magnetic sensor adjacent said spindle, and an indicator that is actuated by said sensor, the improvement comprising a hole in the side of said spindle, and a magnet mounted in said hole with the rotation path of said magnet being adjacent said sensor, whereby said indicator is activated by rotation of said brushroll.
5. The improvement as claimed in claim 4 wherein said indicator and sensor comprise an LED assembly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/650,306 US20050044655A1 (en) | 2003-08-27 | 2003-08-27 | Vacuum sweeper brushroll with magnet assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/650,306 US20050044655A1 (en) | 2003-08-27 | 2003-08-27 | Vacuum sweeper brushroll with magnet assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050044655A1 true US20050044655A1 (en) | 2005-03-03 |
Family
ID=34217128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/650,306 Abandoned US20050044655A1 (en) | 2003-08-27 | 2003-08-27 | Vacuum sweeper brushroll with magnet assembly |
Country Status (1)
Country | Link |
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US (1) | US20050044655A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150208889A1 (en) * | 2014-01-30 | 2015-07-30 | William R. Kimmerle | Brush roller magnet assembly |
JP2018079171A (en) * | 2016-11-18 | 2018-05-24 | 日立アプライアンス株式会社 | Vacuum cleaner and suction port part |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4654924A (en) * | 1985-12-31 | 1987-04-07 | Whirlpool Corporation | Microcomputer control system for a canister vacuum cleaner |
US4706327A (en) * | 1986-05-30 | 1987-11-17 | Whirlpool Corporation | Automatic vacuum nozzle height adjustment system for vacuum cleaner |
US4728942A (en) * | 1985-12-09 | 1988-03-01 | The Scott & Fetzer Company | Self-powered rotation indicator |
US4731898A (en) * | 1986-09-05 | 1988-03-22 | Royal Appliance Mfg. Co. | Brush speed indicator |
US4955103A (en) * | 1988-12-09 | 1990-09-11 | The Scott Fetzer Company | Vacuum cleaner with suction indicator |
US5014387A (en) * | 1989-12-26 | 1991-05-14 | The Scott Fetzer Company | Brush roll mounting |
US6393657B1 (en) * | 2000-05-31 | 2002-05-28 | The Scott Fetzer Company | Brush roll rotation indicator |
-
2003
- 2003-08-27 US US10/650,306 patent/US20050044655A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4728942A (en) * | 1985-12-09 | 1988-03-01 | The Scott & Fetzer Company | Self-powered rotation indicator |
US4654924A (en) * | 1985-12-31 | 1987-04-07 | Whirlpool Corporation | Microcomputer control system for a canister vacuum cleaner |
US4706327A (en) * | 1986-05-30 | 1987-11-17 | Whirlpool Corporation | Automatic vacuum nozzle height adjustment system for vacuum cleaner |
US4731898A (en) * | 1986-09-05 | 1988-03-22 | Royal Appliance Mfg. Co. | Brush speed indicator |
US4955103A (en) * | 1988-12-09 | 1990-09-11 | The Scott Fetzer Company | Vacuum cleaner with suction indicator |
US5014387A (en) * | 1989-12-26 | 1991-05-14 | The Scott Fetzer Company | Brush roll mounting |
US6393657B1 (en) * | 2000-05-31 | 2002-05-28 | The Scott Fetzer Company | Brush roll rotation indicator |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150208889A1 (en) * | 2014-01-30 | 2015-07-30 | William R. Kimmerle | Brush roller magnet assembly |
US9743817B2 (en) * | 2014-01-30 | 2017-08-29 | William R. Kimmerle | Brush roller magnet assembly |
JP2018079171A (en) * | 2016-11-18 | 2018-05-24 | 日立アプライアンス株式会社 | Vacuum cleaner and suction port part |
JP7071798B2 (en) | 2016-11-18 | 2022-05-19 | 日立グローバルライフソリューションズ株式会社 | Vacuum cleaner |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SCOTT FETZER COMPANY, THE, OHIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ANDERSON, THOMAS R.;REEL/FRAME:014480/0407 Effective date: 20030822 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |