US2763887A - Adjustable nozzle suction cleaners - Google Patents

Adjustable nozzle suction cleaners Download PDF

Info

Publication number
US2763887A
US2763887A US200421A US20042150A US2763887A US 2763887 A US2763887 A US 2763887A US 200421 A US200421 A US 200421A US 20042150 A US20042150 A US 20042150A US 2763887 A US2763887 A US 2763887A
Authority
US
United States
Prior art keywords
handle
cleaner
nozzle
roller
motor
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
US200421A
Other languages
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 NL86419D priority Critical patent/NL86419C/xx
Priority to BE507785D priority patent/BE507785A/xx
Application filed by Hoover Co filed Critical Hoover Co
Priority to US200421A priority patent/US2763887A/en
Priority to GB28593/51A priority patent/GB706144A/en
Priority to FR1057908D priority patent/FR1057908A/fr
Priority to CH303642D priority patent/CH303642A/fr
Application granted granted Critical
Publication of US2763887A publication Critical patent/US2763887A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes
    • 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

  • the present invention relates to suction cleaners and more particularly to a novel arrangement of the supporting wheels and the propelling handle whereby the nozzle is automatically elevated whenever the handle is in either of its normally non-propelling positions.
  • the present invention provides a simple arrangement which is automatically operable to elevate the agitator out of contact with a floor covering whenever the propelling handle is unsupported by the hand of the user. Stated conversely, the present invention operates to lower the agitator into a carpet handling position whenever the handle is moved from either of its two positions of rest to any cleaner propelling position.
  • Another object is the provision of new and simple automatic means for raising the agitator from the carpet whenever the propelling handle is in either of its two rest positions.
  • a further object is the provision of automatically operable means for lowering an agitator into contact with a carpet whenever the handle is moved from either of its rest positions into its cleaner propelling positions.
  • Still another object is the provision of a novel arrangement whereby the position of the operating handle determines the position of one or more of the cleaner supporting wheels with respect to the cleaner body.
  • a further object is the provision of a simple and effective nozzle range shifter in combination with an automatically operable agitator lifter.
  • Figure 1 is a side View of a suction cleaner incorporating a preferred embodiment of the invention
  • Figure 2 is a bottom view of the cleaner shown in Figure 1;
  • FIG. 3 is a top view of the rear wheel carriage taken on line 3-3 of Figure 1;
  • Figure 4 is a vertical sectional view on line 4-4 of Figure 3;
  • Patent Figure 5 is a vertical sectional view on line 5--5 of Figure 6 showing the converter in place
  • Figure 6 is a fragmentary rear View of the cleaner shown in Figure 5 with certain parts broken away.
  • the cleaner includes a main body casting 10 having a suction nozzle 11 in communication with two upwardly and rearwardly extending housings 12 and 13.
  • a generally cylindrical motor-fan unit 14 is pivotally supported between the upper ends of housings 12 and 13 in a manner which will be described in detail below.
  • the forward end of the main body 10 is supported by a pair of wheels 15, 15 concealed within skirts integral with the main casting.
  • a pair of rear wheels 16 are journaled to a lever or carriage 17 pivotally connected to the main casting by a rod 18 and having a roller which rides along a trackway carried by the motor-fan unit.
  • a rotary agitator 19 is detachably mounted within the nozzle and comprises a large diameter shell carrying a pair of rigid, helically arranged beater elements 20 and a pair of diametrically disposed bristle brushes 21.
  • passageway 22 within housing 13 encloses the agitator drive belt 24, while passageway 23 within housing 12 constitutes a suction air passageway leading into the fan eye of motor-fan unit 14.
  • the forward end of passageway 23 preferably expands so as to extend substantially the full length of suction nozzle 11, as indicated by Figure 2.
  • the motor-fan unit 14 is journaled between the adjacent facing sides of housing members 12 and 13 in any suitable manner, such as illustrated in Figures 5 and 6. From these figures it will be noted that cylindrical motor shell 25 is closed by a removable plate 26 which also forms the outer wall of fan chamber 27 and encloses suction fan 28. Centrally disposed in plate 26 is fan inlet eye 29. Outwardly extending annular flanges on plate 26 cooperate with hearing and sealing rings 30 and with flanged ring 31 to support the motor-fan unit rotatably at the upper inwardly facing ends of housing members 12 and 13. Ring 31 is secured to the housing members by screws 32. The combined dust guard and finishing plate 33 is also held in place by screws 32.
  • a similar bearing and mounting structure is carried at the pulley end of the motor-fan unit and differs primarily in that there is no central opening in the plate corresponding to fan eye inlet 29.
  • An exhaust air conduit 34 is cast integrally with motorfan unit 14 and its lower end communicates with the periphery of the fan chamber.
  • a filter bag 35 is preferably provided with a bag ring 36 which is detachably secured to the end of passageway 34 by thumb nuts 37.
  • the propelling handle 38 is secured to a fitting 39 overlying conduit 34 and rigidly attached to the motor housing. Accordingly, it will be clear that the propelling handle, as well as the filter and exhaust air conduit, pivot with the motor-fan assembly.
  • the rear wheel carriage comprises a generally inverted cup shaped stamping 17.
  • the forward end of the carriage is pivoted to the cleaner body at 18 while the rear end supports trunnions for rear wheels 16.
  • the top surface of the carriage is slit at 40, 40 and the intervening portion 41 is depressed to form a slide channel for strip 42.
  • Struck up tabs 43, 43 on strip 42 support a roller 44 at a slight angle to the horizontal.
  • Roller 44 bears against an arcuate trackway 45 secured to the underside of the motor-fan unit 14 at or near the longitudinal axis of the cleaner.
  • the surface of the trackway is concentric to the axis of the motorfan unit except for a pair of cammed roller receiving 3;".
  • recesses. 46 and 47. and. alower. limit. stop 48, Recess. 46 is located at the forward end of the trackway and in a position to receive roller 44 when the handle is in. itsstorage positionhdret shown as Y the vertical positiiin, while recess: 47 is located tore'ceivethej roller when tli handle is :in: its desired inclined: rest: position; This: position is ,preferably seleotedi at?
  • roller 44' will fall either into recess 46- or recess 47 allowing the rear wheelsto pivot upwardly about pivot 18- to the dotted. line: positionindicated in the drawings.
  • the suction seal with the nozzlelips is broken and the agitator is elevatedwell above the carpet nap. Accordingly; the cleaner motor can be left: in operation indefinitely without the'possibility. ofwear or injury to the carpet.
  • Converter port. 49 is located in the side of the suction passageway directly. opposite fan eye 29 and is normally'closed byasnap-oncover 50.
  • the converter tool' preferably. comprises afrL-shaped conduit 51 the shorter leg of which fits snugly within port 49' and extends into substantially airtight registry with fan eye29.
  • a key. 52 on the outer side of the converter interfits with a notch 53' on the upper side of the converter port.
  • Latch 55'- also cooperates with key 52v and notches 533 54- to prevent rotation of the converter with respect: to the cleancrbody.
  • the converter tool interfits with a tab on the motor-fan unit to perform two important functions.
  • thecon.- verter cannot be inserted until the motor-fan unit isin one of two positions and secondly, once the converter isin position the motor-fan unit cannot berotated.
  • These objectives may be served by providing'a tabv 56 on end plate 26 of the motor-fan unit which extends into similarly shaped notches 57 or 58 in theend of-the. converter tube 51. These notches are so positioned. that if. the handle. is in the vertical position, tab 56 extendsinto notch 57. However, if the handle isin theinclineda rest position when converting, tab 56 extends into notch 58'.
  • v the converter cannot be inserted and locked in place unless: the handle isv in its storage position or in its inclined rest position. In eitherofthese-positions, the rear wheels are elevated with the result that the nozzle and agitator are also elevated out of contact withthe carpet. Once. the converted is locked in place, the handle and the rear wheels are also locked insuring that the agitator will remain out of contact with the carpet so longas the converter remains-in place.
  • the present invention also incoiporates' simole and easilyv operated means for adjusting the nozzle to carpets of widely varying thickness without, however, interfering with the automatic nozzle raising feature described in detail above.
  • the nozzle range shifting adjustment mechanism will be best understood by reference to Figures 3 and 4. From. these. figures it will be noted that roller 44 is quite long-and" that its axis is inclined to the: horizontal; This roller is carried ou strip 42 which is slidable crosswise of carriage l7. Normally strip 42 is held in a desired positio-n by a controllever- 60 pivoted to the underside of the carriage by a: large diameter rivet 61. A compression spring 62 extends between the. lowerrend of? the rivet andthe underside of lever 60 holding it snugly against the underside of the carriage. The notched, forward endof lever 60 is received by the slotted end 63 of an extension on strip 42.
  • the upturned rear end 65 of lever 60 extends upwardlythrough an arcuate. slot.66,-inthe. carriage. Spaced apart. downturned tabs,- 67, 67 on the forward side of. slot. 66 provide a plurality of notchesor-stops for handle 65.
  • roller 44 If the operator should release his grasp on the handle, it will fall. by gravity until. roller 44 fallsv into recess 47. permittingcarriage 17 and the rear wheels to pivot upwardly aboutipivot 18 When this occurs, the cleaner body: pivots downwardly about. the front carrier wheels 15 raising the nozzle, breakingthe suction seal and elevating, the agitator out. of contact with the carpet. The cleaner may continue to operate for an indefinite period without any possibility of injury to the carpet. As soon as. the operator grasps the handle and either raises or lowersit slightly, roller 44 will pass out of recess 47 onto the elevated portion of the track causing the carriage and ,the; rear, wheels. tobe. lowered and restoring the nozzle.
  • a range shifting adjustment mechanism for the nozzle of a suction cleaner comprising a suction cleaner body having a suction nozzle, a propelling handle pivoted to said body having an arcuate sector, a motor-fan unit therefor, a pair of non-adjustable wheels for said cleaner.
  • a vertically adjustable wheel carriage for said cleaner means for adjusting said carriage vertically including a movable roller positioned between said carriage and said arcuate sector of said handle, said roller having a surface inclined slightly to the horizontal and having its axis extending crosswise of said sector, and a manually operable lever for moving said roller axially to adjust said carriage vertically whereby said cleaner pivots about said non-adjustable wheels to adjust said suction nozzle to carpets of different thickness.
  • a range shifting adjustment mechanism as defined in the preceding claim in which said manually operable means comprises a lever extending rearwardly from said movable roller and having an end accessible for manual control at the rear of said cleaner, and means for supporting said lever for movement transversely of said cleaner.
  • a suction cleaner having a body provided with a suction nozzle, a rotary agitator therein, a motor-fan unit drivingly connected to said agitator, supporting wheels for said body including a pair of wheels vertically adjustable with respect to said body, a propelling handle pivoted to said body having two positions of rest, lever means pivoted to said body including means connecting one portion thereof to said adjustable wheels, roller means on said lever means and positioned to ride upon a cammed sector movable with said handle, said lever means and cammed sector arranged to move said adjustable wheels to raise said nozzle and agitator out of their carpet cleaning position when said handle moves into either of said rest positions and to lower said nozzle as said handle is moved out of said rest positions, and means supporting said roller at an angle to the horizontal and shiftable laterally with respect to said cammed sector to move said lever means vertically to adjust said nozzle to carpets of different thicknesses.

Landscapes

  • Nozzles For Electric Vacuum Cleaners (AREA)
US200421A 1950-12-12 1950-12-12 Adjustable nozzle suction cleaners Expired - Lifetime US2763887A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL86419D NL86419C (ja) 1950-12-12
BE507785D BE507785A (ja) 1950-12-12
US200421A US2763887A (en) 1950-12-12 1950-12-12 Adjustable nozzle suction cleaners
GB28593/51A GB706144A (en) 1950-12-12 1951-12-06 Improvements relating to suction cleaners
FR1057908D FR1057908A (fr) 1950-12-12 1951-12-11 Perfectionnements apportés aux aspirateurs de poussière
CH303642D CH303642A (fr) 1950-12-12 1951-12-12 Aspirateur de poussière.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US200421A US2763887A (en) 1950-12-12 1950-12-12 Adjustable nozzle suction cleaners

Publications (1)

Publication Number Publication Date
US2763887A true US2763887A (en) 1956-09-25

Family

ID=22741661

Family Applications (1)

Application Number Title Priority Date Filing Date
US200421A Expired - Lifetime US2763887A (en) 1950-12-12 1950-12-12 Adjustable nozzle suction cleaners

Country Status (6)

Country Link
US (1) US2763887A (ja)
BE (1) BE507785A (ja)
CH (1) CH303642A (ja)
FR (1) FR1057908A (ja)
GB (1) GB706144A (ja)
NL (1) NL86419C (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512207A (en) * 1966-10-26 1970-05-19 Electrolux Ab Suction cleaner
US3908223A (en) * 1972-06-30 1975-09-30 Nat Union Electric Corp Cleaning nozzle attachment for a suction cleaner
US4648149A (en) * 1984-10-09 1987-03-10 National Union Electric Corp. Vacuum cleaner assembly
US4686736A (en) * 1986-02-19 1987-08-18 The Regina Co., Inc. Vacuum cleaner
US4959885A (en) * 1990-01-12 1990-10-02 Royal Applicance Mfg. Co. Vacuum cleaner
US5269042A (en) * 1992-01-10 1993-12-14 Royal Appliance Mfg. Co. Height adjustment system for vacuum cleaner
US5551120A (en) * 1995-02-17 1996-09-03 Royal Appliance Mfg. Co. Conversion assembly for vacuum cleaners
WO2013139364A1 (en) * 2012-03-19 2013-09-26 Aktiebolaget Electrolux Upright vacuum cleaner having a support

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823430A (en) * 1987-11-17 1989-04-25 Amway Corporation Vacuum cleaner with brush lift-off
CA2048098C (en) * 1991-07-29 1994-10-18 The Bank Of Nova Scotia Lift-off mechanism for an upright vacuum cleaner
CN104398205B (zh) * 2014-11-10 2016-08-24 蔡留保 一种收集纺织品杂物的清洁机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1678111A (en) * 1922-12-04 1928-07-24 Walter A Frantz Suction cleaner
US2022438A (en) * 1935-01-26 1935-11-26 Birtman Electric Co Suction cleaner
US2174595A (en) * 1938-02-28 1939-10-03 Hoover Co Suction cleaner
US2325796A (en) * 1940-01-29 1943-08-03 Hoover Co Suction cleaner
US2329563A (en) * 1942-03-03 1943-09-14 Westinghouse Electric & Mfg Co Suction cleaning apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1678111A (en) * 1922-12-04 1928-07-24 Walter A Frantz Suction cleaner
US2022438A (en) * 1935-01-26 1935-11-26 Birtman Electric Co Suction cleaner
US2174595A (en) * 1938-02-28 1939-10-03 Hoover Co Suction cleaner
US2325796A (en) * 1940-01-29 1943-08-03 Hoover Co Suction cleaner
US2329563A (en) * 1942-03-03 1943-09-14 Westinghouse Electric & Mfg Co Suction cleaning apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512207A (en) * 1966-10-26 1970-05-19 Electrolux Ab Suction cleaner
US3908223A (en) * 1972-06-30 1975-09-30 Nat Union Electric Corp Cleaning nozzle attachment for a suction cleaner
US4648149A (en) * 1984-10-09 1987-03-10 National Union Electric Corp. Vacuum cleaner assembly
US4686736A (en) * 1986-02-19 1987-08-18 The Regina Co., Inc. Vacuum cleaner
US4959885A (en) * 1990-01-12 1990-10-02 Royal Applicance Mfg. Co. Vacuum cleaner
US5269042A (en) * 1992-01-10 1993-12-14 Royal Appliance Mfg. Co. Height adjustment system for vacuum cleaner
US5551120A (en) * 1995-02-17 1996-09-03 Royal Appliance Mfg. Co. Conversion assembly for vacuum cleaners
WO2013139364A1 (en) * 2012-03-19 2013-09-26 Aktiebolaget Electrolux Upright vacuum cleaner having a support
CN104271020A (zh) * 2012-03-19 2015-01-07 伊莱克斯公司 具有支撑件的直立式真空吸尘器
CN104271020B (zh) * 2012-03-19 2017-04-05 伊莱克斯公司 具有支撑件的直立式真空吸尘器
US9622630B2 (en) 2012-03-19 2017-04-18 Aktiebolaget Electrolux Upright vacuum cleaner having a support

Also Published As

Publication number Publication date
NL86419C (ja)
CH303642A (fr) 1954-12-15
GB706144A (en) 1954-03-24
FR1057908A (fr) 1954-03-11
BE507785A (ja)

Similar Documents

Publication Publication Date Title
US2763887A (en) Adjustable nozzle suction cleaners
US2898621A (en) Combination suction cleaners
US4377882A (en) Vacuum cleaning appliances
US5388301A (en) Rim seal for vacuum cleaner having dual storage tanks
US3579699A (en) Suction cleaner nozzle adjustment
JPS6223567B2 (ja)
US2716465A (en) Vacuum cleaner assembly
US2904816A (en) Rug tool having a turbine-driven rug brush
US3217351A (en) Vacuum cleaner
US2750618A (en) Combined handle and switch control for suction cleaners
US2844840A (en) Combination wet mop, dry mop, and vacuum cleaner
US4823430A (en) Vacuum cleaner with brush lift-off
US2561964A (en) Air-flow control for vacuum cleaners
US2333494A (en) Suction cleaner
US2330621A (en) Suction cleaner
US2583949A (en) Switch construction for suction cleaner appliances
US2730751A (en) Wheel adjustment for suction cleaners
JPH0591956A (ja) 電気掃除機
US2544405A (en) Vacuum cleaner housing unit
US1852100A (en) Suction cleaner
US2758329A (en) Suction cleaner and converter facility therefor
US2677845A (en) Nozzle adjustment for suction cleaners
US3199137A (en) Suction cleaners
US2214855A (en) Vacuum cleaner
GB722700A (en) Improvements in or relating to combined suction cleaner and floor polisher