US1755054A - Vacuum-cleaner-brush bearing - Google Patents

Vacuum-cleaner-brush bearing Download PDF

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Publication number
US1755054A
US1755054A US244071A US24407128A US1755054A US 1755054 A US1755054 A US 1755054A US 244071 A US244071 A US 244071A US 24407128 A US24407128 A US 24407128A US 1755054 A US1755054 A US 1755054A
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United States
Prior art keywords
bearing
brush
vacuum
stud
cleaner
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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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US244071A
Inventor
James M Darst
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ELECTRIC VACUUM CLEANER CO
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ELECTRIC VACUUM CLEANER CO
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Application filed by ELECTRIC VACUUM CLEANER CO filed Critical ELECTRIC VACUUM CLEANER CO
Priority to US244071A priority Critical patent/US1755054A/en
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22921255&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US1755054(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/02Nozzles
    • A47L9/04Nozzles with driven brushes or agitators
    • A47L9/0455Bearing means therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72Sealings
    • F16C33/76Sealings of ball or roller bearings
    • F16C33/80Labyrinth sealings
    • F16C33/805Labyrinth sealings in addition to other sealings, e.g. dirt guards to protect sealings with sealing lips
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2314/00Personal or domestic articles, e.g. household appliances such as washing machines, dryers

Description

25 tion showing the interior construction of said heldiby the housing. The housingis ada t d Patented A pr. 1d, 1930 UNITED STATES PATENT OFFICE TAKES I. DABST, OF EAST CLEVELAND, OHIO, ASSIGNOR TO ELECTRIC VACUUM CLEANER COMPANY, INC., OF CLEVELAND, OHIO, A. CORPORATION OF NEW YORK VACUUM-CLEANER-BRUSE BEARING Application filed January 3, 1928. Serial No. 244,071.

The present invention relates to a vacuum Referring to Fig. 2, 19 is a tube which carcleaner brush bearing and has for its, object ries the centrally mounted driving pulley 11 to provide an improved bearing of this charand the brush proper comprising the usual acter which is thoroughly sealed and prorows of hair tufts inserted in the walls of the tected from lint, threads and dust-laden air tube. The tube, brush proper and pulley to which it is subjected in use,.which' is at the may be conveniently termed the brush and same time readily demountable in the field represents any rotary brush for a vacuum for cleaning and inspection, and which per-' cleaner. The brush 1s mounted at each end mits the brush assembly to be removed and rein bearings, the exterior housing of one of 10 placed without dismantling the bearing. which is shown at 20 and the latter is in turn For a consideration of what is believed to carried in a fixed holder 21 ofsuitable conbe novel and my invention, attention is directstruction secured to the side wall of nozzle 6. ed to the accompanying drawing, the follow- In the present example it is secured to a boss ing description taken in connection with the 22 integral with the nozzle wall. The particdrawing, and the ap nded claim. ular holding means for the bearin sdoes not In the drawin ig. 1 is a side view of a concern the present invention. owever, it

' vacuum cleaner having a rotary brush with is arranged preferably to permit the easy re- Which the a i g 0f the p ese nV ti n is w moval from and insertion in the nozzle of the adapted to be used; Fig. 2 is an enlarged View, brush with its bearings. v

partly in cross section, showing a bearlng Referring now to Fig. 3, the bearing housembodying the invention mounted in the nozing 20 is a single-piece or unitary, cylindrical, 1 zle of the vacuum cleaner of Fig. 1, one end of cup-shaped member into which a suitable the brush and one bearing being shown, and bearing, such as aball bearing 23 is pressed,

- Fig. 3 is a further enlarged view in cross secthe outer race 24 of the bearing being thereby bearing. v to begripped and held on its exterior a out Referring to Fig. 1, 5 is the cas ng of a the bearing and is there provided with a vacuum cleaner having a forwardly extendpressed exterior projection 25 which preing floor nozzle 6 through which dust and vents it from rotating in the holding means21. so other matter are drawn by a suction fan 7 and The inner race 26 of the bearing is free to delivered through the casing to a dust bag 8. rotate andreceives the shouldered end of an The nozzle is supported on side rollers or castaxially extending hollow stud 27 connected ers 9 and is fitted with a rotary floor brush inwith the brush. The stud is slidably removdicated at 10. The bIZIlSh is provided Wlth a able from the inner race and is held therein pulley wh1ch 1s drlven through a belt by a finely pitched screw 28 which engages y a dri g pulley 13. The driving pulley corresponding threads 29 inthe bore30 of and fan re m n e on a m on Shflfi1 14 the stud and draws the shouldered end of the which is driven directly by an electrlc m r stud into a seated position within and against 15, the armature Of which is indicated at 16. the innen race, A lock washer 31 beneath The cleaner is moved over thev surface to be th h d f th Screw d th fin it h f th cleaned by a Suitable handle 17 and is l P- screw prevents the stud from loosening from ported at the rearby a caster or wheel 18. the bearing in operation.

The above-described vacuum cleanerrepreq .The bearing is lubricated when necessary sents any vacuum cleaner havinga rotary andthe screw 28 is readily accessible, through brush to which bearings embodymg-the ina bossed central opening 32 in the end wall of vention may be applied., In the present ex-' ample the brush is journaled within the nozzle according to the usual practice in bearings supported by the nozzle side walls as shown more fully in Fig. 2.

the housing adjacent the bearing and directly in line with the screw. The opening is pro yided with a suitable closure means, such as a screw cap 33. The bearing is thus protected from dust on one side by the closed nd of the housing. On the opposite side itis protected by a cup-shaped packing washer 34 which surrounds the stud and seats adjacent the outer frace within the housing. The 'washer carries a ring packing 35 of suitable material and a retaining washer 36 for the packing. The packing contacts with the stud and packs it against dust and other foreign matter which may tend to enter the bearing.

The brush stud 27 isconnected with the brush by a flanged or grooved head 37 which is integral with the stud and which is pressed onto the end of the brush tube. The brush, grooved head, stud and inner race are thus connected and are rotatable together abouta common axis, while the housing, outer race and packing means remain stationary. The housing is enlarged at it's'outer end to receive the grooved head fully within it and is of such internal diameter about the head-that only a close running clearance space i38-38 is provided between it and the head. This space, together with an annular chamber 39 formed by the groove in the head provide a labyrinth packing between the dust-laden air within the nozzle and the inner packing means 34 and35. The head-for the brush tube is also protected from thread winding by the housing which extends over it, that is overhangs the flange 40.

-' The above-described bearing structure may ,be considered to comprise a brush assembly which includes the brush or brush tube 19 with the heads mounted thereon, and the bearing assembly which includes the housing 2Q, bearing 23, and packing means,-together with screw 28 and washer 31. With the construction shown the brush assembly'may be -.removed from the beari-n assembly by simply removing'cap 33 an unscrewing screw 28 The brush assembly is then withdrawn axially as indicated by the dotted outline 41 leaving the be ring assembly in readiness to receive a new ush' assembly without disturbing the bearing arrangement.

This construction thus makes field servicing of the bearing and brush structure very simple and easy since the brush when worn out is thus easily removed and replaced by a new one and the bearing is easily relubricated through the opening provided .by removable cap 33. This results in asaving to the user since the brush replacement involves only the cost of the brush and is quickly accomplished. 1

The easy removal of the brush assembly from the bearing also facilitates occasional cleaning of the bearing and brush. The construction has the advantage that the support for the bearing maybe located directly about the bearing, tlius eliminating vibration and wear ordinarily occasioned'by an overhung construction in which the bearing is supported hand this 24th day axially at a distance from the bearing sur-- the shouldered end of the stud is seated, means carried by the stud for engaging the inner race to hold the stud in said seated position,

said means being releasable to permit the stud to be withdrawn from the bearing, a cylindrical cup-shaped housing having-at one end an enlarged portion which surrounds the head wit a close running clearance, said head being rovided with an annular groove which forms a labyrinth packing with the enlarged portion of the housing, at the opposite end of said housing enclosing the bearing, and a removable closure means for said oppgs'ite end of the casing, said closure means ing axially in line with the'holdin means and adjacent the bearing, whereby y removing said closure means, said holdin means may be removed and the bearing an outer memberdpf the packing removed as a unit from the stu 1 In witness whereof, I have hereunto set my of December,'1927.

JAMES M. DARST.

US244071A 1928-01-03 1928-01-03 Vacuum-cleaner-brush bearing Expired - Lifetime US1755054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US244071A US1755054A (en) 1928-01-03 1928-01-03 Vacuum-cleaner-brush bearing

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL28010D NL28010C (en) 1928-01-03
US244071A US1755054A (en) 1928-01-03 1928-01-03 Vacuum-cleaner-brush bearing
DEI36593D DE522387C (en) 1928-01-03 1928-12-28 Vacuum cleaner with detachable fixed Buerste
GB165/29A GB303449A (en) 1928-01-03 1929-01-02 Improvements in and relating to vacuum cleaner brush bearings

Publications (1)

Publication Number Publication Date
US1755054A true US1755054A (en) 1930-04-15

Family

ID=22921255

Family Applications (1)

Application Number Title Priority Date Filing Date
US244071A Expired - Lifetime US1755054A (en) 1928-01-03 1928-01-03 Vacuum-cleaner-brush bearing

Country Status (4)

Country Link
US (1) US1755054A (en)
DE (1) DE522387C (en)
GB (1) GB303449A (en)
NL (1) NL28010C (en)

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US2619391A (en) * 1950-05-15 1952-11-25 Westinghouse Electric Corp Electric motor shaft and bearing construction
US20050251292A1 (en) * 2000-01-24 2005-11-10 Irobot Corporation Obstacle following sensor scheme for a mobile robot
US20050287038A1 (en) * 2004-06-24 2005-12-29 Zivthan Dubrovsky Remote control scheduler and method for autonomous robotic device
US20070244610A1 (en) * 2005-12-02 2007-10-18 Ozick Daniel N Autonomous coverage robot navigation system
US20080015738A1 (en) * 2000-01-24 2008-01-17 Irobot Corporation Obstacle Following Sensor Scheme for a mobile robot
US20080127445A1 (en) * 2005-02-18 2008-06-05 Irobot Corporation Autonomous surface cleaning robot for wet cleaning
US20080127446A1 (en) * 2005-02-18 2008-06-05 Irobot Corporation Autonomous surface cleaning robot for wet and dry cleaning
US20080134457A1 (en) * 2005-02-18 2008-06-12 Irobot Corporation Autonomous surface cleaning robot for dry cleaning
US20080307590A1 (en) * 2002-01-03 2008-12-18 Irobot Corporation Autonomous Floor-Cleaning Robot
US20090007366A1 (en) * 2005-12-02 2009-01-08 Irobot Corporation Coverage Robot Mobility
US20100011529A1 (en) * 2006-05-19 2010-01-21 Chikyung Won Removing debris from cleaning robots
US20100049364A1 (en) * 2002-09-13 2010-02-25 Irobot Corporation Navigational Control System for a Robotic Device
US20100063628A1 (en) * 2002-09-13 2010-03-11 Irobot Corporation Navigational control system for a robotic device
US20100082193A1 (en) * 2004-07-07 2010-04-01 Mark Joseph Chiappetta Celestial navigation system for an autonomous vehicle
US20110144805A1 (en) * 2002-09-13 2011-06-16 Chiappetta Mark J Navigational control system for a robotic device
WO2011103198A1 (en) * 2010-02-16 2011-08-25 Irobot Corporation Vacuum brush
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CN102724903A (en) * 2010-02-16 2012-10-10 艾罗伯特公司 Vacuum brush
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DE522387C (en) 1931-04-08
NL28010C (en)
GB303449A (en) 1930-01-09

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