US2758329A - Suction cleaner and converter facility therefor - Google Patents

Suction cleaner and converter facility therefor Download PDF

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Publication number
US2758329A
US2758329A US244791A US24479151A US2758329A US 2758329 A US2758329 A US 2758329A US 244791 A US244791 A US 244791A US 24479151 A US24479151 A US 24479151A US 2758329 A US2758329 A US 2758329A
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US
United States
Prior art keywords
converter
tool
nozzle
suction
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
US244791A
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English (en)
Inventor
George A Brace
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.)
Hoover Co
Original Assignee
Hoover Co
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 to BE513874D priority Critical patent/BE513874A/xx
Application filed by Hoover Co filed Critical Hoover Co
Priority to US244791A priority patent/US2758329A/en
Priority to GB21441/52A priority patent/GB710053A/en
Priority to CH300571D priority patent/CH300571A/fr
Priority to FR1068802D priority patent/FR1068802A/fr
Application granted granted Critical
Publication of US2758329A publication Critical patent/US2758329A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • Sheets-Sheet 5 will! I IN V EN TOR.
  • the present invention hasparticularl utility. .when employed on the modern floor. type cleaherhaving a power driven agitator in the mouth .of the'suctiontnozzle for beating the carpet'as the surface litter and dirtare picked up. During ofisthe-floor cleaning, the. operation of the agitator is likely to damage the carpet. unless the proper. precautions are taken. In general, prevalent precautionary measures fall within one of two categories, namely, thosein which theagitator. is elevated and-supported appreciably above the, carpet,.or those-in which the agitator .driveisdisconnected. However, the constructions of both.categories heretofore proposedto protect the carpet are subject to numerous disadvantages.
  • the present invention provides anunusually: simple and eifective construction. entirely. overcomingthe. shortcomings of those heretofore known.
  • the converter tool ...is inserted downwardly through an opening'in the top ofthe suction-nozzle and this coupling movement is utilized to elevate and lock the agitator in a raised position entirely removed from contact with the carpet;
  • the simultaneous upward move- "verter tool operates simultaneously to elevate the suction nozzle appreciably-above the-carpet and to'hold-it in this position so long as the converter is.in place.
  • a further object. is ?t'o"iprovide a n0ve1 converter tool designed. tosfraddle the runsof the-agitator belt and havingsa slotclosing valve thereon which11cooperates with the cleaner body in a unique manner to lock the centrallyof'the top side'of thecleaner body and to be converter in place and the valve closed so,long.ias the converter is in assembled position.
  • Figure 1 is a side elevational view ofiaflooncleaner incorporating the invention
  • Figure 2 is a vertical sectional viewthrough the-suction'nozzle showing the converter tool. ,beinginserted through the. converter. passage but before. it has acted to liftthe suction nozzle;
  • Figure 7. is atop plan view of the-.cleanerishown in Figure 6 with certain parts. broken-awayto' show the interior construction
  • Figure 8 is a-view.- similar to Figure 6-showing-the converter .tool fully inserted;
  • FIG. 9 is a perspective-view. of. therconverter. tool employed in the second embodiment. a
  • the first ernbodimentr is shown..as--i ncorporated in a suction cleaner having a ;-main-body .1-0-'provided with a suction nozzle 11 textending-acr0ss-itsf01ward end and supported upon a pair of rear-wheels 12 andza pair of front carrier-Wheels 13.
  • A-vertical axiscmotor-fan unit not shown indetail, will besunderstood to bewsupported enclosed by 1 an appearance'hood 14.
  • the usualpropellinghandle 15 is pivotedtothe rear endtof the/body at .a. point overlying the :aindischarge'passageway and the usualfilter bag 16.
  • -thersuctionfan17 is located in .afanchamb'er 18 having; an inleti'eye 19.. r. This eye is in communication with thetsuction nozzle' through a rearwardly extending suction air pa'ssagewayrzfl the bottom: wall 21 of vwhich is removable in accordance with customary practice.
  • ..:A::-rotary agitator 22 is rotatably) mounted justlinside (the. mouth of themsuction passageway -and:..i-s provided with the. usual carpet. beatingelements such as 'theuows of bristles -23; and rigid beater bars 24; Tliet'gitator is drivenby a belt 25 encircling'the'a'gitator and'connected to a pulley 26 'on' the lower end. of the motor's'haft.
  • the carrier wheels 13 are mounted "on the opposite ends of an axle shaft generally indicated" at 271-
  • This shaft extends transversely of the cleaner body and is bent as illustrated in Figures 2 to.4 to form a pairi-o'f. bell cranks which are. pivoted :to the-cleaner bodytintermediate their. ends as .at 28..
  • One pair of bellcrankarms 29,- 29 extend upwardly into the top tportionnoftthe suction nozzle andtheir ends.are/interconnectedlbyuthe central portion 30 of the axle.
  • the other pair of hell crank curved vertical wall 31 and a horizontal bearing cap portion 32 which underlies bearing portion 28, 28 of the shaft 27. These elements are held in position by a pair of screws 33, 33.
  • a manual control lever 34 which is supported on stud 35 projecting downwardly from the underside of the cleaner body.
  • the lever is pivotally connected to this stud by a screw-36 and a friction spring washer 37.
  • the lower end of the lever is provided with two or more notches -38, 39 located at different radial distances from the pivot screw.
  • the upper or handle end 40 of the control lever projects upwardly through an opening in the cleaner body 'so as to be operable from the top side of the cleaner.
  • notch 38 When lever 34 is in the position shown in Figures '2 and 3, notch 38 is in position to abut shaft 27 at a point beside one of the supporting wheels 13, and thereby prevents further clockwise rotation of the shaft. In other words, notch 38 adjusts the nozzle to its lower operating position for handling carpets of average thickness. If it is desired tooperate the cleaner on thick carpets, the adjusting lever is pivoted rearwardly so that notch 39 overlies the wheel axle to hold the nozzle in a somewhat higher position for operation on such carpets. The friction washer 37 retains the control lever in a selected opcrating position even though the shaft 27 is entirely removed from notches 38- and 39.
  • a light leaf spring 40 one end of which is secured to the back wall of the suction nozzle and the other end bears against the underside of arm 31 of the axle shaft. This spring accordingly urges the shaft to rotate counterclockwise into firm engagement with notch 38 or 39 of the control lever.
  • the conversion facilities will now be described, reference being invited to Figures 2, 3 and 4.
  • the converter port 41 is located in the top wall of the suction nozzle and is normally closed by a cover plate 42 having a hinged connection 43 with the cleaner body.
  • a converter receiving passage isprovided by a tubular member 44 extending downwardly from port 41 at an angle.
  • the upper end of member 44 is secured to the top wall of the nozzle
  • the converter tool itself is illustrated in Figure 5 and comprises a tubular sheet metal member 46 having 'a socket 47 at one end forming a coupling for the' usual flexible hose 48. Its opposite end is of rectangular shape and of a size to be readily received by converter receiving member 44.
  • the discharge end of the converter tool is open and shaped as illustrated in Figures 2, 3 and 5.
  • the lower ends of the opposite sides of the converter tool are shaped to provide cam surfaces 49 which engage the underside of horizontal portion 30 of the wheel shaft as the converter enters member 44. Further downward movement of the converter rotates the axle counter-clockwise about the axis of carrier wheels 13. In so doing, all other portions of the shaft, including pivot portion 28, rotate counter-clockwise and carry the forward end of the body upwardly about the rear wheels thereby raising thesuction nozzle completely off the carpet to the position illustrated in Figure 3. The front wall of the converter is thenin contact with cover plate 21'of the suction air passageway.
  • the sides of the nozzle lie flush against the sides of the suction passageway while the top wall rests against the lower, forward corner of the fan chamber thereby cutting off all air flow from the suction nozzle and confining the flow to the converter tool.
  • the front wall of the converter tool is ,provided with a belt receiving slot'50. The'p'ortions of this slot not occupied by the runs of the beltare'closed by a unitary valve member'Sl pivoted to the forward side of the tool by a rivet 5 2.
  • This valve is provided with a lower notch 53 and an upper notch 54- of the configuration illustrated for receiving the runs ofjthe belt and closing otf the remainder of slot 50.
  • the valve is normally urged toward and held in closed position by light spring 55 secured to the converter tool.
  • the valve is also provided with a manual lever 56 terminating'at one side ofthe tool in a convenient position to be grasped by the operator when it is desired to un-- latch and remove the converter from the cleaner.
  • one side of the valve member is provided with a pair of cam surfaces terminating in a notchjust below operating lever 56. These cam surfaces serve to open the valve and hold it open while the tool is being inserted. This is accomplished by means of a pin 57 projecting inwardly from the front peripheral edge of converter port 41. The position of this pin when the converter valve first contacts it during insertion is indicated bythe dotted line showing of the pin at 57' in Figure 5.
  • pin 57 will engage cam surface 58 of the valve member and pivot it clockwise to the dotted line position illustrated in Figure 5, and into a position permittingthe runs of the belt to-be received by slot 50 of the tool.” Due to design of cam 58, opening of the valve occurs very quickly. After the valve is openit is held openby the engagement of pin 57 with cam surface 59 of the valve member. By the time the converter has been fully inserted, pin 57 will be in the dotted position indicated by 57" in Figure 5 wherein it is opposite locking notch 6t) of the valve member. So long as pin 57 is engaged in notch -60, the converter is locked firmly in place and cannot be removed until control lever 56 is manually rotated clockwise in opposition to spring 55.
  • Second embodiment A somewhat simplified. versionrof the invention'jsillustrated in Figures 6 to 90f:the drawings::. :According to this version, it isunnecessaryto" extend the: carrierewheel shaft through the suction air passageway,1nor is it neces sary to make provisiononthe-converter tool for sealing .off the belt drive .toatheagitator. This. is accomplished by resort to acleanerhavingva: horizontally aiarranged motor-fan unit of-a type well knownin the prior art.
  • acleanerhavingva horizontally aiarranged motor-fan unit of-a type well knownin the prior art.
  • cleaner body has a downwardly Opening suctionnozzle 71 across its forward end 'which is in communication with two rearwardly and upwardly-extending housings 72 and 73.
  • the generally cylindricalamotorefan unit74 is provided with bearings of well knownaconstruction at its opposite ends which are rotatably-supported;on the'facing sides of housings 72 and 73, as clearly-appears from Figure 7.
  • the electricidriving motor is located at the top end, of the casing while-suction fan 75 opens into suction air passageway-76 providedrby housing 72 through fan eye 77.;
  • Thefan discharges into exhaust air passageway 78 which opens into a detachable filter bag 79.
  • the propelling handle 80 is'co'nnected to a socket 81 formed on the upper sidenf: exhaust passageway 78. It is therefore to beunderstood thattheentire motor-fan unit, propelling handle and. filter thagpivot as a unit on an axiscoinciding withthe axis-.ofithemotorfan unit.
  • a rotary agitator 82. is mounted imthesuctionnozzle and is connected by a driving belt S S-to the motor drivenpulley 84. This pulley and .thetdriving belt are located in housing 73.
  • Bracket members-84 are' rigidly :secured'to body 70 of the cleaner and support rearwheels 85.
  • Thezfront carrierwheels 86 are mounted on the-outer ends of .U-shaped axle 87 pivotally supported in bearings 88'carried on the rear lip of the suction nozzle.
  • - -A light torsionrspring 89 is so arranged as to urge the axle and-:wheelsdo-rotate counter-clockwise toward the cleaner body.
  • . cleaner causes the axle and 'arm 90xtoirotate counterclockwise against stop 9,3-wherein the nozzleis, properly positioned .for on-the-floorcleaning. It'will of course be understoodthat, if desired, a nozzle adjustment control may be employed .in lieu of stop 93,- ast-forexample the, type described in connection with the first embodiment.
  • a converter port located in the top wall of housing-72 .is'normallyt closed by a hinged cover 96 spring biased to open position. by .a-
  • torsion springencircling-the cover hinge but not-shown in the drawings This cover is normally held closed by a latch mechanism 97 having an end engageable in notch 98 of the cover.
  • the converter tool illustrated in. Figure. 91 comprises a sheet metal tubular member99 having 'a'coupling 100 for connection to the flexiblehose; Theopposite end is cut away. as indicatedat 101 to registerrwith fan eye 77 and to cut off flow through the-suction nozzlmwhen the tool is in place.
  • The-lower end of2 the tool is receivable in a recess 1G2 on-the lower endeotlthe' suction passageway.
  • the converter tool istlatched in position .by the engagement oflatch device.:97; in motch 103 onthe forward wall of the converter tool.
  • thelower end 104::ofzth'econverter tool 1.
  • conversionito OfinthfiflOOI' cleaning is-accom- 1': plished veryzsirnply: All thatis necessary; is .tomnlatch cover '96.and insert the converter tool downwardly through the converter port. As the converterwi's inserted, the bottom- Wall will engage thenozzle raising .-:-'member.
  • A. suction cleaner comprising, a main body provided witha suction-nozzle having 'a rotary agitatortherein, 'a
  • a suction cleanerof the type having a main: body, a suction nozzle thereon carrying a :rotary: agitator, a motor driven suction fan rearwardly of said nozzle, a belt between' said motor and agitator to:
  • said wheeled means including a lever movably mounted on said body and fulcrumed on the axis of .one of the wheels of said wheeled means and havingta portion thereof positioned in the path of a converter tool inserted through said port and movable thereby so that said lever is pivoted about said. fulcrum to elevate said suction nozzle as the converter tool is moved downwardly into air-tight seating engagement with said converter port.
  • said lever comprises a double crank-shaped axle for a-pair of .cleaner supporting wheels and wherein said axle has a portion thereof extending into said suction passage from the exterior thereof to a point located in the path of a converter tool as it is inserted downwardly through said port, said axle being shiftable about the axis of said pair of wheels by the insertion of the converter tool to elevate said suction nozzle.
  • a suction cleaner of the type having a main body provided with a suction nozzle across the forward end thereof, a rotary agitator mounted in said nozzle, a motor driven suction fan on said body rearward of said nozzle, a suction air passage extending rearwardly from said nozzle to said suction fan, a belt positioned in said passage and extending between said motor and agitator to drive the latter, of means for converting said cleaner to otf-the-floor operation and for simultaneously elevating said nozzle and agitator appreciably above the carpet comprising, a converter receiving port opening through the top of said nozzle forwardly of said suction fan, a plurality of vertically adjustable wheels at all times supporting said cleaner and including movable lever means fulcrumed on the axis of .certain of said wheels and having a pivotal connection with said cleaner body, a portion of said lever means being positioned in the path of a converter tool inserted through said port and movable thereby to elevate said nozzle by using the axi
  • lever means includes an axle extending crosswise of said cleaner rearward of said nozzle, said wheels being journaled on the opposite ends of said axle, said axle having portions thereof offset from the axes of. said wheels and journaled in said cleaner body on the opposite sides of said suction air passage.
  • the combination defined in claim 6 including a converter tool having open ended slot means at the lower end thereof to receive the runs of said agitator belt as .said tool is inserted downwardly through said converter port, a spring-biased valve member-pivotally mounted on said tool normally closingsaid slot'means except for openings to receive said belt runs, an abutment extending from the edge of said port and engageable with a cammed edge on said valve member formed to open said valve as said converter is inserted through said port and to hold the valve open until the converter tool is seated in said port, and a recess in said valve member which locks behind said abutment to hold said valve closed and said converter in place on said cleaner and said nozzle in said elevated position during oif-the-floor-operation thereof.
  • a suction cleaner having a main body provided with a suction nozzle, a rotary agitator therein, a motor-driven suction fan on said body, said body having a suction air passage extending between said nozzle and said fan, a belt extending through said inserted transversely of said suction air passage, valve means on said tool for closing the portions of said slot means not occupied by the belt runs, lever means pivotally mounted on said body and'fulcrumed on the axis of the wheels of said wheel means and extending into the path of said tool as the latter is inserted through said port for raising said nozzle out of cleaning relation to the floor, and interengaging means on said cleaner and on said valve means for-holding said converter tool in a position such that said lever means is operative to hold the suction nozzle out of cleaning relation to the floor, said interengaging means also being operative to hold said converter tool seated within said converter'port and in a position to cut off substantially all air flow through the suction nozzle.
  • a floor type suction cleaner readily convertible between on-the-floor and off-the-floor operation comprising, a main body having a suction air passage, a power-driven suction'nnit on said body opening into said air passage, a downwardly facing suction nozzle in communication with said passage, a rotary agitator in said nozzle, belt driving means therefor connected to said power unit'and extending through said suction air passage, means on said cleaner supporting a pair of vertically adjustable wheels, a converter port opening into said air passage through the top wall thereof, a converter tool insertable downwardly through said port into said passage and having slot means to receive said belt for converting said cleaner to off-the-fioor operation, valve means on said tool for closing the portions of said slot means not occupied by said belt as the tool is inserted across said passage, means engageable by said tool as the 'same is inserted through said port for elevating said cooperation with said nozzle elevating means to hold said nozzle out of cleaning relation to the floor.

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US244791A 1951-09-01 1951-09-01 Suction cleaner and converter facility therefor Expired - Lifetime US2758329A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE513874D BE513874A (lt) 1951-09-01
US244791A US2758329A (en) 1951-09-01 1951-09-01 Suction cleaner and converter facility therefor
GB21441/52A GB710053A (en) 1951-09-01 1952-08-26 Improvements relating to suction cleaners
CH300571D CH300571A (fr) 1951-09-01 1952-09-01 Aspirateur de poussière.
FR1068802D FR1068802A (fr) 1951-09-01 1952-09-01 Perfectionnements au mécanisme de soulèvement du bec d'aspiration dans les aspirateurs de poussière

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US244791A US2758329A (en) 1951-09-01 1951-09-01 Suction cleaner and converter facility therefor

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US2758329A true US2758329A (en) 1956-08-14

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US244791A Expired - Lifetime US2758329A (en) 1951-09-01 1951-09-01 Suction cleaner and converter facility therefor

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US (1) US2758329A (lt)
BE (1) BE513874A (lt)
CH (1) CH300571A (lt)
FR (1) FR1068802A (lt)
GB (1) GB710053A (lt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2898622A (en) * 1955-11-30 1959-08-11 Hoover Co Combination suction cleaners
US20060070204A1 (en) * 2004-10-05 2006-04-06 Tacony Corporation Flow control valve system for an upright vacuum cleaner with a cleaning hose
US20150289742A1 (en) * 2012-11-19 2015-10-15 Wetrok Ag Floor cleaning machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454292B1 (fr) * 1979-04-20 1985-12-13 Moulinex Sa Aspirateur-brosseur a usage menager

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2174595A (en) * 1938-02-28 1939-10-03 Hoover Co Suction cleaner
US2189379A (en) * 1935-01-28 1940-02-06 Shell Dev Process for treating soda asphalt
US2330665A (en) * 1943-09-28 Suction cleaner
US2366125A (en) * 1941-05-19 1944-12-26 Scott & Fetzer Co Suction cleaner
US2378587A (en) * 1942-10-12 1945-06-19 Eureka Vacuum Cleaner Co Converter attachment
US2416786A (en) * 1943-05-12 1947-03-04 Hoover Co Suction cleaner
US2450846A (en) * 1943-05-12 1948-10-05 Hoover Co Converter for suction cleaners
US2450828A (en) * 1943-05-12 1948-10-05 Hoover Co Converter for suction cleaners
US2584495A (en) * 1947-10-29 1952-02-05 Eureka Williams Corp Conversion arrangement for suction cleaners
US2653343A (en) * 1947-05-05 1953-09-29 Eureka Williams Corp Suction cleaner conversion arrangement

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2330665A (en) * 1943-09-28 Suction cleaner
US2189379A (en) * 1935-01-28 1940-02-06 Shell Dev Process for treating soda asphalt
US2174595A (en) * 1938-02-28 1939-10-03 Hoover Co Suction cleaner
US2366125A (en) * 1941-05-19 1944-12-26 Scott & Fetzer Co Suction cleaner
US2378587A (en) * 1942-10-12 1945-06-19 Eureka Vacuum Cleaner Co Converter attachment
US2416786A (en) * 1943-05-12 1947-03-04 Hoover Co Suction cleaner
US2450846A (en) * 1943-05-12 1948-10-05 Hoover Co Converter for suction cleaners
US2450828A (en) * 1943-05-12 1948-10-05 Hoover Co Converter for suction cleaners
US2653343A (en) * 1947-05-05 1953-09-29 Eureka Williams Corp Suction cleaner conversion arrangement
US2584495A (en) * 1947-10-29 1952-02-05 Eureka Williams Corp Conversion arrangement for suction cleaners

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2898622A (en) * 1955-11-30 1959-08-11 Hoover Co Combination suction cleaners
US20060070204A1 (en) * 2004-10-05 2006-04-06 Tacony Corporation Flow control valve system for an upright vacuum cleaner with a cleaning hose
US20150289742A1 (en) * 2012-11-19 2015-10-15 Wetrok Ag Floor cleaning machine

Also Published As

Publication number Publication date
GB710053A (en) 1954-06-02
BE513874A (lt)
FR1068802A (fr) 1954-07-01
CH300571A (fr) 1954-08-15

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