US2307827A - Vacuum cleaner - Google Patents

Vacuum cleaner Download PDF

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Publication number
US2307827A
US2307827A US346242A US34624240A US2307827A US 2307827 A US2307827 A US 2307827A US 346242 A US346242 A US 346242A US 34624240 A US34624240 A US 34624240A US 2307827 A US2307827 A US 2307827A
Authority
US
United States
Prior art keywords
motor
fan
vacuum cleaner
tank
casing
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
US346242A
Other languages
English (en)
Inventor
Ferman C Doughman
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.)
Electrolux Corp
Original Assignee
Electrolux Corp
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 NL68471D priority Critical patent/NL68471C/xx
Application filed by Electrolux Corp filed Critical Electrolux Corp
Priority to US346242A priority patent/US2307827A/en
Application granted granted Critical
Publication of US2307827A publication Critical patent/US2307827A/en
Priority to CH266081D priority patent/CH266081A/de
Priority to GB20933/47A priority patent/GB638574A/en
Priority to FR951070D priority patent/FR951070A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47L9/22—Mountings for motor fan assemblies
    • 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
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/362—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the horizontal type, e.g. canister or sledge type

Definitions

  • My invention relates to vacuum cleaners and.
  • a motor-fan unit is mounted in this unit.
  • the motor is usually a universal type motor which operates at a relatively high speed when connected either to alternating or direct current.
  • a motor of this type has a commutator with a number of segments engaged by two carbon brushes. High frequency electrical pulsations are created as the commutator segments pass successively under the carbon brushes. The slots in the armature also produce high frequency electrical pulsations.
  • i0 indicates a vacuum cleaner casing housing a motor ll, driving a multi-stage fan i2 which produces a flow of air in the casing in from left to right, as shown in Fig. 1.
  • a dust separating member or dust bag I3 is located at the left end in casing II.
  • Motor H is provided with an end shield it formed of a phenolic condensation product such as Bakelitef Formed integrally with end shield 14 are two brush holders IE to which are secured brush holder caps It.
  • End shield I6 is secured verted into mechanical vibrations in the motor primarily as torque pulsations. When the motor the alternating impulses are also converted into mechanical vibrations. The variations in the load on the motor as the vacuum cleaner is operated, which produce variations in the speed of operation of the motor, are also converted into mechanical vibrations. Any mechanical unbalance in the armature will produce vibrations.
  • the multi-stage fan which is connected to the motor with its plurality of blades produces mechanical vibrations. All of these mechanical vibrations produce noise, if not absorbed, which is magnifled if transmitted to the vacuum cleaner casing.
  • a flexible support for the motor-fan unit has been used heretofore to reduce the noise produced and transmitted to the vacuum cleaner casing.
  • An object of my invention is to provide an improved motor-fan unit support.
  • a further object of my invention is to eliminate the transmission of vibrations and noise from the motor-fan unit to the vacuum cleaner casing-
  • Fig. l is a side view of a vacuum cleaner unit broken away in part to show the motor-fan unit and dust bag within it;
  • Fig 2 is a. cross-sectional view taken along the line 2-2 of Fig. 1;
  • Fig. 3 is an enlarged detail sectional view taken along the line 3-3 of Fig. 2;
  • Fig. 4 is an enlarged detail sectional view taken along the lines 4-4 of Fig. 3:
  • Fig. 5 is an enlarged detail view taken along the line 5-5 of Fig. 4.
  • Brackets 19 are secured to shell H at radially spaced points around the periphery of the shell.
  • Three resilient supporting members 29 consisting of a fiat metal strap 2!, a metal angle member 22, and a block 23 of rubber or other resilient material are provided.
  • Block 23 is secured to strap 2
  • Strap 2! is secured to bracket 89 by means of two screws Ed in threaded engagement with strap 2
  • Angle members 22 are secured, to an annular ring 25 as by means of. rivets 26.
  • Fan l2 includes two rotating fan members 27 and 28 secured to the end of shaft extension 29 of motor ll. Between the fan members 21 and 28 is located a guide member 30, which serves to guide air discharged from-fan 27 to the inlet of fan 28. Guide member 30 is secured to a housing 3
  • a bulkhead 3% is secured within vacuum cleaner casing iii and is provided with an opening to receive motor H and fan i2.
  • Annular ring 25 is secured to bulkhead 36 by means of bolts 35 to mount the motor H and fan 12 within casing Ill.
  • and 32 and easing ill is closed by a flexible sealing ring 36.
  • Sealing r g 36 has a radially extending flange 31 positioned between bulkhead 3t and annular ring 25.
  • An enlarged end 38 of sealing ring 35 remote from flange 3T abuts end wall 33.
  • motor ii and fan I! produces a flow of air from left to right in casing ID, as shown in Fig. 1.
  • This operation of the motor-fan unit produces a force on the motor ii and fan i! moving it toward the left or in a direction opposite to the direction of air movement.
  • the flexibility of the supporting members 20 permits conmembers together, an annular metal ring securedto the radial extending portions offsaid. angle siderable movement of the motor-fan unit in this direction.
  • the flexible sealing ring 36 has a con:-
  • bracket I9 When motor ll moves axially, bracket I9 and.
  • a vacuum cleaner including a casing, a motor located within said casing, a plurality oi brackets secured to said motor, straps secured to said brackets, angle members secured to said casing and having an axiallyextending portion overlying said straps, and blocks of rubber resiliently connecting said straps and said angle members togetherjsaid angle members having stops adapted to engage said brackets to limit axial movement of said motor and serving to support said motor in said casing.
  • a vacuum cleaner including a casing, a bulkhead located within said casing having an opening, a motor located in said casing extending through the opening in said bulkhead, a plurality of brackets secured to said motor, straps connected to said brackets, angle members having axially extending. portions overlying said 'straps and radially extending portions, blocks oi rubber resiliently securing said straps and said angle members, and means'to secure said annular ring to said bulkhead.
  • Apparatus adapted to be used in a vacuum cleaner comprising housing means including a tank, means ior producing air flow through the tank, resilient means for supporting theair flow means within the tank, and resilient sealing means for preventing circulation oi air from one .end of the airflow means to the other without the air going outside the tank, saidsealing means comprising an annular member sealingly attached to one of the two first mentioned means and biased into sealing engagement with a radial face of the other or said two first mentioned means and adapted to remain in such sealing engagement despite axial movement oi the air flow means.
  • a vacuum cleaner tank means for producing air flow through the tank, resilient means for supporting the air flow means within the tank, and resilient sealing means for preventing circulation of air from one end of the air flow means to the other without the air going outside the tank, said sealing means comprising a resilient member sealingly attached to the tank -and in sealing engagement with the air flow means, the portion of said member attached to the tank forming a part of the resilient supporting means.
  • a vacuum cleaner tank of generally tubular shape means for producing air flow through the tank, resilient means for supporting the air flow means within the tank, sai'd resilient means comprising a pluralityof rubber sandwiches, the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Electric Suction Cleaners (AREA)
US346242A 1940-07-19 1940-07-19 Vacuum cleaner Expired - Lifetime US2307827A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL68471D NL68471C (enrdf_load_stackoverflow) 1940-07-19
US346242A US2307827A (en) 1940-07-19 1940-07-19 Vacuum cleaner
CH266081D CH266081A (de) 1940-07-19 1947-07-09 Staubsauger.
GB20933/47A GB638574A (en) 1940-07-19 1947-08-01 Improvements in or relating to vacuum cleaners
FR951070D FR951070A (fr) 1940-07-19 1947-08-05 Suspension élastique pour aspirateurs de poussière et autres applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US346242A US2307827A (en) 1940-07-19 1940-07-19 Vacuum cleaner

Publications (1)

Publication Number Publication Date
US2307827A true US2307827A (en) 1943-01-12

Family

ID=23358555

Family Applications (1)

Application Number Title Priority Date Filing Date
US346242A Expired - Lifetime US2307827A (en) 1940-07-19 1940-07-19 Vacuum cleaner

Country Status (5)

Country Link
US (1) US2307827A (enrdf_load_stackoverflow)
CH (1) CH266081A (enrdf_load_stackoverflow)
FR (1) FR951070A (enrdf_load_stackoverflow)
GB (1) GB638574A (enrdf_load_stackoverflow)
NL (1) NL68471C (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596783A (en) * 1947-03-24 1952-05-13 Moore Co Electric motor for fans
US2843314A (en) * 1954-09-27 1958-07-15 Whirlpool Co Vacuum cleaner suction unit
USD272571S (en) 1981-02-25 1984-02-07 Electrolux Corporation Vacuum cleaner
USD285619S (en) 1984-09-12 1986-09-09 Electrolux Corporation Vacuum cleaner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596783A (en) * 1947-03-24 1952-05-13 Moore Co Electric motor for fans
US2843314A (en) * 1954-09-27 1958-07-15 Whirlpool Co Vacuum cleaner suction unit
USD272571S (en) 1981-02-25 1984-02-07 Electrolux Corporation Vacuum cleaner
USD285619S (en) 1984-09-12 1986-09-09 Electrolux Corporation Vacuum cleaner

Also Published As

Publication number Publication date
FR951070A (fr) 1949-10-14
GB638574A (en) 1950-06-14
NL68471C (enrdf_load_stackoverflow)
CH266081A (de) 1950-01-15

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