US2843315A - Motor-fan unit mounting for suction cleaner - Google Patents

Motor-fan unit mounting for suction cleaner Download PDF

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Publication number
US2843315A
US2843315A US509042A US50904255A US2843315A US 2843315 A US2843315 A US 2843315A US 509042 A US509042 A US 509042A US 50904255 A US50904255 A US 50904255A US 2843315 A US2843315 A US 2843315A
Authority
US
United States
Prior art keywords
motor
casing
fan
fan unit
rim
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
US509042A
Other languages
English (en)
Inventor
Faith-Ell Lars Johan
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 AB
Original Assignee
Electrolux AB
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 NL106368D priority Critical patent/NL106368C/xx
Priority to NL256141D priority patent/NL256141A/xx
Priority to DEA32540A priority patent/DE1182400B/de
Priority to GB24104/57A priority patent/GB810443A/en
Application filed by Electrolux AB filed Critical Electrolux AB
Priority to US509042A priority patent/US2843315A/en
Application granted granted Critical
Publication of US2843315A publication Critical patent/US2843315A/en
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

Definitions

  • My invention relates to suction cleaners, and is particularly concerned with a mounting for a motor-fan unit in cleaners of this type.
  • lt is an object of my invention to provide an improved resilient mounting for motor-fan units in suction cleaners in which the motor-fan unit can be iirmly secured in position with a minimum amount of effort and readily detached from the suction cleaner. l accomplish this by resiliently mounting the motor-fan unit in position in such manner that parts associated with the motor-fan unit and suction cleaner casing coact to provide a slip-clamp type of connection.
  • Another object of the invention is to mount the motorfan unit in a suction cleaner casing in such a manner that the gap between the motor-fan unit and the casing is at least partly bridged by a web-like diaphragm formed of a material having good insulating properties. More particularly, it is an object to employ a diaphragm of this kind to provide a seal between the suction cleaner casing and motor-fan unit to prevent iiow of air therebetween.
  • Fig. l is a longitudinal View of a vacuum cleaner, partly broken away and in section, embodying my invention
  • Fig. 2 is an enlarged fragmentary sectional view illustrating details of parts shown in Fig. 1;
  • Fig. 3 is a fragmentary sectional View like that of Fig. 2 to illustrate additional details of parts shown in Fig, l;
  • Figs. 4 and 5 are transverse sectional views taken at lines l--iand 5-5 of Fig. l; and i Figs. 6 and 7 are enlarged fragmentary sectional views taken at lines 6-6 and 7--7 of Fig. 3;
  • a horizontal tank-type vacuum cleaner 19 having a casing 11 provided with a handle 12 and runners 1li which are fixed to the casing in any suitable manner to facilitate movement thereof on a supporting surface.
  • the casing 11 is provided with removable end covers, only the front end cover 15 being partly shown in Fig. l.
  • the end cover 1e is formed with an opening le to which a suction hose (not shown) is adapted to be connected.
  • a perforated partition or wall 1i at one side of which is disposed a dust bag 17 for collecting dirt.
  • a suction or motor-fan unit ld which includes a centrifugal fan 19 carried at one end of an electric motor 2t).
  • the fan 19 is provided with a two-part housing including a rear part 24 carried by the motor 2t) and a forward part 2S telescopically fitting the rear part 24 and held in place. ⁇ by resilient clips 2d having inwardly bent ends, as best shown in Fig. l. All of the air drawn into the fan 19 at the inlet 21 passes into the interior of the motor 2d and is discharged from the shell thereof at the opening 22 which may be in the form of an apertured cage enveloping the commutator end of the motor.
  • the motor-fan or suction unit 13 is detachably mounted in position within the casing 11 with the aid of a ring-shaped member or annular liange 27 and a stationary wall part 28 which coact to form a slip-clamp type of connection, suitable springs 29 and 30 and a resilient member 31 providing a resilient mounting for the motor-fan or suction unit.
  • the ring-shaped member or annular flange 27, springs 29 and Sil and resilient member or gasket 31 form part of an assembly 32 which is carried by and forms a unitary part of the motor Ztl, while the stationary wall part 28 forms a rim and is fixed in position within the casing 11.
  • the motor 20 is provided with four outwardly extending lugs 33 to which the assembly 32 is iixed.
  • the lugs 33 include radially extending wall parts 34, against the opposing surfaces of which bear the large ends of the conical-shaped springs 29 and Sil which may be referred to as basket spring units.
  • Bolts 35 which extend through the conicalshaped springs 29 and Sil and openings 36 in the lugs 33, threadably receive tightening nuts 37 to connect the lugs to an inwardly extending ange 38 of a shield 39 of annular form which is zigzag-shaped in section and disposed about the electric motor 20 and spaced therefrom.
  • Each bolt 35 receives a spacer member d0, one end of which bears against the small end of the conicalshaped spring 3i) to maintain the springs under tension when the nuts 37 are threadedly secured to the bolts 35.
  • the resilient member or gasket 31 of annular form mcludes a U-shaped part or sealing member 41 in which snugly tits an outwardly extending flange 42 of the zigzagshaped shield 39.
  • One leg 43 of the U-shaped part 41 of the resilient member 31 is bent at a right angle and forms a sleeve which bears against the outer surface of the intermediate part of the shield 39 and is disposed at the vicinity of the inner periphery of the annular flange 27.
  • the opposite leg 4d of the U-shapedl part 41 of the resilient member extends radially inward and is formed with an edge portion or bead 4S which resiliently flexes and lits snugly against a shoulder formed at one end of the shell of the motor Ztl.
  • the ring-shaped member or annular flange 27 is carried by the outwardly extending part 42 of the shield 39 and disposed about the intermediate part thereof, In the preferred embodiment shown, the ring-shaped member or annular flange 2'7 is ⁇ formed with openings which threadedly receive screws 46, the heads of which bear against a bearing plate 47 provided at one face of the sealing member or U-shaped portion 4f of the resilient member or gasket 3f.
  • the ring-shaped member or annular flange 27 and wall part 28 coact and cooperate to form a slipclamp type of connection for mounting the motor-fan or suction unit 1S resiliently in position in the casing lll.
  • the wall part 2.8 l forms part of a stifening member located between the apertured wall 17 and rear end 23 of the cleaner.
  • the wall part or rim 23 forms a transverse wall section within the casing fl which is apertured and has a large central opening through which the motor-fan or suction unit 18 can be moved.
  • the wall part 28 forms a rim which, at the inner peripheral edge portion thereof, is provided with notches or recesses 43 which are spaced apart from one another to form a plurality of circumferentially interspaced projections and indentations.
  • the ring-shaped member 27 is provided with outwardly projecting parts or projections 49 which are spaced from one another to form a plurality of circumferentially interspaced projections and indentations.
  • the unit, with the assembly 32 fastened thereto is moved lengthwise of the casing 11 to the position ⁇ shown in Fig. 1.
  • the motor-fan unit With the projections 49 on the ring or annular flange 27 positioned in front of the recesses 48 in the wall part or rim 28, the motor-fan unit is moved lengthwise of the casing to position the ring or annular flange 27 at one side of the wall part or rim 2S and the U-shaped part 4l of the resilient member 3l at the opposite side thereof.
  • the motor-fan unit f3 can be angularly turned or rotated to wedge Vand lock the projections 49 on thev ring or annular flange behind the portions 48' of the rim 2S which are disposed between the notches or recesses 43 in the latter, as shown in Figs. 3 and 5. Thereafter, the screwsfl are tightened to secure the motor-fan unit f3 rigidly in position.
  • the resilient member or gasket 3l which desirably may be formed of material like rubber, for example, forms a web-like diaphragm having the form shown in Fig. 2.
  • the U-shaped part ll and inwardly extending leg 44 of the diaphragm together form a seal between the wall of the casing .l1 andthe shell of the motor 20 at the vicinity of the wall part or rim 2d. With such a seal, all of the air drawn into the fan housing 19 is directed through the motor shell and is discharged therefrom at 22 at the commutator end of the motor, for example. In this way, efficient air-cooling of the motor 20 is effected.
  • the resilient gasket 31 includes the cylindrical or sleeve-like portion 43 which bears against the intermediate part of the shield 39.
  • the shield 39 is electrically insulated from the ring or annular flange 27, which may be referred to as the bayonet-lock ring, and from the casing 11 of the vacuum cleaner, such insulation of the shield 39 being effected by increasing the creep path between the motor 20 and the casing 11.
  • a suction cleaner a casing having a transverse apertured wall section forming a rim dening an opening, a suction unit, an annular flange on the suction unit, the rim at the inner periphery thereof having a plurality of circumferentially interspaced projections and indentations, the flange at the outer periphery thereof having a plurality of circumferentially interspaced projections and indentations, the projections on the rim and flange being interlocked when the projections on the flange are moved axially of the casing through the indentations in the rim and the rim and the flange are then rotated with respect to one another about an axis extending axially of the casing, a sealing member of annular form at the vicinity of the flange, and fastening means for removably securing the flange and sealing member to the rirn with the projections on the flange and rim interlocked, the sealing member and projections
  • annular flange forms part of a mount for the suction unit, the aforementioned mount including a resilient annular gasket forming the sealing member.
  • said fastening means comprises members which pass through aligned openings in the annular resilient gasket and the flange and regions which are removed from the inner periphery of the rim, the openings in the flange being threadedly connected to the members.
  • annular flange forms a part of a mount for the suction unit
  • the aforementioned mount comprising a plurality of members including a resilient annular gasket forming the sealing member, and said gasket having a sleeve which extends through the opening at the inner periphery of the rim and includes a portion at the vicinity of the inner periphery of the flange.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Reciprocating Pumps (AREA)
US509042A 1954-05-19 1955-05-17 Motor-fan unit mounting for suction cleaner Expired - Lifetime US2843315A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL106368D NL106368C (xx) 1954-05-19
NL256141D NL256141A (xx) 1954-05-19
DEA32540A DE1182400B (de) 1954-05-19 1955-04-26 Befestigungseinrichtung fuer ein Motorgeblaeseaggregat in einem Staubsauger
GB24104/57A GB810443A (en) 1954-05-19 1955-05-02 Improvements in or relating to vacuum cleaners
US509042A US2843315A (en) 1954-05-19 1955-05-17 Motor-fan unit mounting for suction cleaner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE473654 1954-05-19
US509042A US2843315A (en) 1954-05-19 1955-05-17 Motor-fan unit mounting for suction cleaner

Publications (1)

Publication Number Publication Date
US2843315A true US2843315A (en) 1958-07-15

Family

ID=38512481

Family Applications (1)

Application Number Title Priority Date Filing Date
US509042A Expired - Lifetime US2843315A (en) 1954-05-19 1955-05-17 Motor-fan unit mounting for suction cleaner

Country Status (4)

Country Link
US (1) US2843315A (xx)
DE (1) DE1182400B (xx)
GB (1) GB810443A (xx)
NL (2) NL256141A (xx)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973895A (en) * 1959-06-03 1961-03-07 Electrolux Corp Motor mountings
US3149553A (en) * 1961-09-29 1964-09-22 Gallaher Co Air moving devices
US3308608A (en) * 1960-01-28 1967-03-14 Electrolux Ab Vacuum cleaner
US4865522A (en) * 1987-04-18 1989-09-12 Pierburg Gmbh Fuel pump for an internal combustion engine having two pump units
CN104840155A (zh) * 2014-02-18 2015-08-19 莱克电气股份有限公司 一种应用于吸尘器的电机降噪结构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB348700A (en) * 1929-02-21 1931-05-18 Electrolux Ltd Improvements in vacuum cleaners
US1860885A (en) * 1929-03-05 1932-05-31 Electrolux Corp Vacuum cleaner
US2037557A (en) * 1933-04-15 1936-04-14 Electrolux Corp Vacuum cleaner
US2134142A (en) * 1936-02-10 1938-10-25 Trade Wind Motorfans Inc Ventilating apparatus
US2307538A (en) * 1941-04-17 1943-01-05 Electric Vacuum Cleaner Co Vacuum cleaner
US2454569A (en) * 1947-08-14 1948-11-23 Gen Electric Motor and fan unit mounting for vacuum cleaners
US2656097A (en) * 1952-02-13 1953-10-20 Gen Electric Motor mount and seal for suction cleaners

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB348700A (en) * 1929-02-21 1931-05-18 Electrolux Ltd Improvements in vacuum cleaners
US1860885A (en) * 1929-03-05 1932-05-31 Electrolux Corp Vacuum cleaner
US2037557A (en) * 1933-04-15 1936-04-14 Electrolux Corp Vacuum cleaner
US2134142A (en) * 1936-02-10 1938-10-25 Trade Wind Motorfans Inc Ventilating apparatus
US2307538A (en) * 1941-04-17 1943-01-05 Electric Vacuum Cleaner Co Vacuum cleaner
US2454569A (en) * 1947-08-14 1948-11-23 Gen Electric Motor and fan unit mounting for vacuum cleaners
US2656097A (en) * 1952-02-13 1953-10-20 Gen Electric Motor mount and seal for suction cleaners

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973895A (en) * 1959-06-03 1961-03-07 Electrolux Corp Motor mountings
US3308608A (en) * 1960-01-28 1967-03-14 Electrolux Ab Vacuum cleaner
US3149553A (en) * 1961-09-29 1964-09-22 Gallaher Co Air moving devices
US4865522A (en) * 1987-04-18 1989-09-12 Pierburg Gmbh Fuel pump for an internal combustion engine having two pump units
CN104840155A (zh) * 2014-02-18 2015-08-19 莱克电气股份有限公司 一种应用于吸尘器的电机降噪结构

Also Published As

Publication number Publication date
NL106368C (xx)
DE1182400B (de) 1964-11-26
NL256141A (xx)
GB810443A (en) 1959-03-18

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