US2349215A - Vacuum cleaner - Google Patents

Vacuum cleaner Download PDF

Info

Publication number
US2349215A
US2349215A US284203A US28420339A US2349215A US 2349215 A US2349215 A US 2349215A US 284203 A US284203 A US 284203A US 28420339 A US28420339 A US 28420339A US 2349215 A US2349215 A US 2349215A
Authority
US
United States
Prior art keywords
motor
casing
supporting
members
ring
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
US284203A
Other languages
English (en)
Inventor
Wahlborg Karl John
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
Application filed by Electrolux Corp filed Critical Electrolux Corp
Application granted granted Critical
Publication of US2349215A publication Critical patent/US2349215A/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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/42—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
    • F16F1/422—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing the stressing resulting in flexion of the spring
    • F16F1/424—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing the stressing resulting in flexion of the spring of membrane-type springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
    • F16F2236/02—Mode of stressing of basic spring or damper elements or devices incorporating such elements the stressing resulting in flexion of the spring
    • F16F2236/022—Mode of stressing of basic spring or damper elements or devices incorporating such elements the stressing resulting in flexion of the spring of membrane-type springs

Definitions

  • My invention relates to vacuum cleaners and more/particularly to a support for the motor" fan unitl
  • An object of my invention is to provide an improved resilient support for the motor-ran unit to reduce the noise transmitted to the vacuum cleaner casing.
  • Motor-fan units have been mounted resiliently heretofore but usually the resilient material is under compression and so transmits noise or vibrations from the motorian unit to the vacuum cleaner casing.
  • the transmission of noise or vibrations through such a resilient support while partly due to the compression or clamping pressure of the supporting members is also partly dependent upon the area of contact between the unit'and the supporting members.
  • the compression of the resilient member is reduced and the area of contact between the unit and supporting members is reduced.
  • the area of contact between the motor-fan unit and support is substantially a line contact.
  • the supporting members are located in or near the center of rotation of the motor-fan unit.
  • Two supports are provided, one at each end of the unit. In order to prevent the shifting of the motorfan unit within the support while providing the desired play, it is necessary to provide some interlocking means between the parts.
  • FIG. 1 shows the rear end of a vacuum cleaner in section, showing my improved supporting means.
  • Fig. 2 is a sectional view taken along the line 2-2 of Fig. 1;
  • Figs. 3 and 4 are views similar to Fig. i showing modified forms ofthe support
  • FIG. 5 is an enlarged detail view of a part of the supporting member shown in Fig. a;
  • Fig, 6 is a view similar to Fig. 1, showing a further modification in the supporting member
  • Fig. 7 is a sectional view taken along the lines 'L-i of Fig. 6;
  • Fig. 8 is a detailed view of a part of the supporting member shown in Fig. 6;
  • Fig. 9 is a side view of the supporting member shown in Fig. 8.
  • Fig. ii is a sectional viewof the supporting means taken at right angles to the section shown at the right oi Fig. 6;
  • Fig. 11 is a view similar to Fig. 8 showing a modified form of supporting member.
  • Fig. 12 is a sectional view taken along the line l2--l2 of Fig. 11.
  • iii indicates a vacuum cleaner casingin which is located a dust bag it and a motor I2 driving a centrifugal fan It.
  • One end of the casing it is provided with a removable cap it in which a discharge opening it is provided.
  • a bade it is mounted in the easing it.
  • two walls I? are provided and formed of a resilient material, such as rubber.
  • walls ii are provided with axially extending openings it.
  • anopening it is provided for receiving the hubs til formed on each end of the motor it.
  • These openings they are lined with a rigid material 2! which may be metal, symthetic resin, or the like.
  • the inner diameter of the lining 2i is slightly larger than the outside diameter of the hub 2b of the motor it. This produces a certain amount of play.
  • the lining 2i is formed as the axially extending portion of an annular ring 23 which is strengthened by a radially extending part
  • the radially extending part i is located on the side of wall ll adjacent to the motor ii.
  • the vacuum cleaner include the pressure caused by the weight of the motor-fan unit acting in a vertical direction downwardly, and the axial force resulting from the suction produced by the operation of the fan i3.
  • the area of the contact between the supporting members and the motor-fan unit l2i3 is small. Little noise or vibration can be transmitted from the motor l2 to the outer casing l0.
  • ll may be made somewhat smaller in outer diameter than the inner diameter of the casing l8, providing a space 23 between the parts.
  • the outer portion of the wall I1 is provided with a reinforcing ring 21 formed 01 rigid material.
  • the relatively free play between the walls I1 and the casing l3 would further serve to reduce any transmission of noise or vibrations from the motor l2 to the casing l8.
  • annular members 28 are secured within the casing iii.
  • the intermediate wall or bailie I8 and the cap 14 also cooperate to prevent axial movement of the walls II.
  • each spring is connected to an inner ring 38, while the other end is connected to a similar outer ring 3i mounted within the casing iii.
  • the inside diameter of the ring 38 is greater than the outside diameter
  • the walls of hub 23 consequently permitting relatively free play between these parts.
  • the space between the ring 38 and the hub 28' is indicated by the numeral 32 and is greatly'exaggerated in the drawings.
  • the ring 3i may also be provided with relatively free play in the casing ill by a space 33.
  • the contact surface between the hub 28 and the rings is substantially'a straight line as in the embodiment shown in Fig. 1. This is also true of the area oi contact of the ring 3
  • annular rings 34 of rubber or other elastic material, support the motor-fan unit I 2-i3 at each end.
  • the rings 34 are secured between two rigid members 36 and 38.
  • the two members 36 and 38 are not in contact with each other at any point.
  • the motor I2 is provided with two conical hubs 31 which rest within the'members 36.
  • the outer members 38 are supported on shoulders 38, formed in bafiles 33.
  • the inner diameter of the member 36 is larger than the largest diameter of the conical hub 31 producing a space 43 therebetween.
  • the space 48 permits relatively free play between the supporting member and the motor I 2.
  • the outer member 38 is smaller in diameter than the opening in the bailie 33 where the shoulder 38 is formed. This produces a space 4i between the member 38 and the shoulder 38.
  • the shoulder 38 is also conical in form.
  • the conical hub 31 and the conical shoulder 33 By providing the conical hub 31 and the conical shoulder 33, a still greater reduction in the area of contact-between the hub and the supporting member and the supporting member and the baboard is produced. This iurther reduces the possibility of the transmission of noise or vibrations fromthe motor l2 to the casing l6.
  • FIG. 5 an arrangement is shown for preventing rotary movement betweeh the housing of motor l2 and the supporting member.
  • a pin 42 enters a recess 43 provided in the supporting member 34.
  • the pin 42 is secured to the baffle 33.
  • a similar-pin 44 is secured to the motor i2 and extends into a recess 46 provided in the supporting member 34.
  • the recesses 43 and 46 are considerably larger than the pins 42 and 44 to provide a relatively loose connection under ordinary working conditions. The same result may be obtained in preventing the rotation of the housing of motor l2, simply by providing a projection on one part engaging in a corresponding recess on the other part.
  • two transverse walls 46 and 41 are secured within the casing i3. Walls 46 and 41 are provided with openings 48 forming an air passage therethrough. Centrally oi. the .walls 46 and 4 1 are intumed flanges 43 and 63 respectively, defining central openings 6! and'62.
  • the motor I2 is provided at each end with a hub 63. Between the hubs 63 and the flanges 43 and 68, supporting discs 64 are provided, formed of a resilient material, such as rubber. 'Inner rigid rings 66 are located between the hubs 63and supporting members 64. Outer rings 68 of rigid material are located between the supporting members 64 and the flanges 43 and 60.
  • the rings 66 are provided with inwardly extending flanges 61 engaging the ends of hubs 63 and the outer rings are provided with outwardly extending flanges 63 engaging the baboards 48.
  • the flanges 61 and 68 prevent axial movement of the supporting members 64.
  • a space 63 is provided between the rings 68 and the flanges 43 and 68, to permit relatively free play between the parts.
  • -A similar space 88 is provided between opposite sides of each face; two elongated pro-.
  • ,iections 82 are provided.
  • One projection 82 on each face is provided with a slot 83.
  • the slotted projections 82 are staggered with respect to each other on opposite faces.
  • Each of the radially extending parts of the rings 66 and 68, overlying the supporting discs 64, is provided with a tongue 64 entering slot 83, as indicated in Fig. 10.
  • the top outside and inside edges of the discs 64 are provided with flats J6 and 66.
  • the rings 66 and 68, the hubs 63, and the flanges 43 and 60 are provided with corresponding flats to cooperate with'the flats 86 and 88.
  • the flats 66 and 88 prevent relative rotary motion between the housing 01' motor l2, supporting members 64 and the baiiies 48 and 41.
  • the relatively thin supporting discs with play betwe'enthe supporting member and the motor l2 and baiiies 48 and 41 results in a relatively small area of contact between the parts with the free play therebetween which reduces the amount of noise or vibrations that may be transmitted Irom the motor I! to the casing 56 and 50 consists of two concentric circular lines.
  • the opposite faces of the disc 61 are provided with radially extending slots 10 and II spaced 180 apart'on the two opposite faces.
  • the slots l and H are adapted to receivethe tongues 84.
  • An electric motor support including a motor, a casing surrounding said motor, a ring of resilisaid body, said members being positioned so as to transmit the axial thrust of the motor through the projections of said body'to the casing.
  • a motor, a support, and resilient mountings having means to receive end portions of the motor adapted to hold the motor in position with respect to the support, shoulders on the motor between the mountings adapted to engage said mountings to prevent endwise displacement of ent material interposed between 'said motor and material located between said motor and said ring of resilient material, said outer ring having relatively free radial play with respect to said casing.
  • a vacuum cleaner a casing, a motor located in said casing, a disc of resilient material having an opening to receive one end of said motor and projections from each face, a ring of substantially rigid material-abutting the projections of one face and surrounding the outer periphery of said disc, and a second ring of substantially rigid material abutting the projections of the opposite face of said disc and extending between said motor and said disc.
  • a vacuum cleaner In a vacuum cleaner, a casing, a motor located in said casing, an annular ring of resilient material supporting said motor in said casing having projections from each face and radially extending slots, 9. ring surrounding the outer periphery of said annular ring and having a tongue engaging in one of said slots, and an inner ring located between said motor and said annular ring having an inwardly extending tongue engaging in another of said slots.
  • An electrical motor support including av motor, a casing surroundingsaid motor, a ring of substantially rigid material surrounding a portion of said motor and being of greater diameter than the diameter of the portiofi of said motor, a second ring located within said casing and being of smaller external diameter than the diameter of the adjacent portion of said casing, and resilient supporting means interposed between said first-named ring and said secondnamed ring whereby said motor is free to move radially within said first-named ring without opposing force, and said second-named ring is adapted'to move radially within said casing without opposing force.
  • annular body of resilient material adapted to support said motorin said casing and having projections on one of its faces, a substantially rigid member located between said body and said motor, and a second substantially rigid member located between said body and said casing,
  • one of said members engaging the projections of the motor, the distance between the shoulders being less than distance between the mountings by a space suflicient to permit a substantial amount of unrestrained free play between said casing and the support.
  • a motor body a supporting body, a cylin drical motor mounting member, a supporting mounting member having a cylindrical opening,
  • said first member being of smaller diameter than the opening in said second member and adapted to rest within the opening in said second member and be supported th'ereby, said first member being adapted to support the motor body
  • said supporting body being adapted to support the second member, and'resilient means inter? posed between said second member and said supporting body, the difference in the diameters of the cylindrical surfaces of the mounting members being such as to permit a substantial amount of unrestrained free play between the mounting members, said mounting members being composed of hard rigid material to reduce the area of contact therebetween substantially to a line.
  • a motor body a, supporting body, a. conical motor mounting member, a supporting mounting member having a conical opening, the acute angle between'the conical surface of the first member and the axis thereof being greater than the acute angle between the conical surface of the opening in the second member and the axis thereof, said first member being adapted to rest within the-,opening in the second member and be supported thereby, said motor being adapted to be supported by said first member and said second member being adapted .to be supported by said supporting body, and resilient means inter posed between one of said members and the corresponding body, the diflerence between said acute angles and the displacement between the 'apexes of said conical surfaces being sufficient to permit a substantial amount 'of unrestrained free play between the mounting members.
  • a motor comprising a stationary member and a horizontal rotor, a member for mounting the motor, a resilient body interposed between said members supporting the motor on the mounting member, against movement perpendicular to the. axis of rotation of therotor, a face on thesurface of one of said members having a substantial projected area in a plane perpendicular to the axis of rotation of the rotor, a plurality of projections on the surface of said body abutting said face to transmit the axial thrust of the motor to the mounting member, said projections being easily deformable in the direction of the motor thrust compared to the deformability of the main portion of said resilient body.
  • .1l.'A motor having a rotor and a stator, a mounting, and means to support the motor on the mounting comprising a member of resilient material, said means being in engagement with said motor and supporting it ultimately against motion in all directions perpendicular to the axis of rotation of the motor while permitting a substantial amount of unrestrained free play in said directions, said member having projections adapted to receive the axial thrust of said motor and transmit it to the mounting, said pro- 1 jections being easily deformable in the direction mounting interposed between the motor and cas ing, said mounting having an open space receiving a portion 01' the motor, the open space within said casing receiving a portion of the mounting,
  • a motor member In a device of the class described, a motor member, a support member, a resilient mounting holding the motor in position with respect to said support, said mounting including a resilient element having an opening therethrough and irmer and outer surfaces. and rigid material secured to one of said surfaces, said rigid material having substantially line contact with one of said members for transmitting force from said motor member to said support member, there being a substantial amount or unrestrained free play between said rigid material and said one of said members.
  • a motor member In a device 01' the class described, a motor member, a support member, a resilient mounting holding the motor in position with respect to said support, said mounting including a resilient element having an opening therethrough and inner and outer surfaces and rigid material secured to one of said surfaces, said rigid material having substantially point contact' with one of said membersfor transmitting force from said motor member to said support member, there being a substantial amount of unrestrained free play between said rigid material and said one of said members.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Motor Or Generator Frames (AREA)
US284203A 1938-07-13 1939-07-13 Vacuum cleaner Expired - Lifetime US2349215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE530501X 1938-07-13

Publications (1)

Publication Number Publication Date
US2349215A true US2349215A (en) 1944-05-16

Family

ID=6554538

Family Applications (1)

Application Number Title Priority Date Filing Date
US284203A Expired - Lifetime US2349215A (en) 1938-07-13 1939-07-13 Vacuum cleaner

Country Status (4)

Country Link
US (1) US2349215A (en))
FR (1) FR857188A (en))
GB (1) GB530501A (en))
NL (1) NL61479C (en))

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460682A (en) * 1941-07-23 1949-02-01 Electrolux Corp Mechanical mounting
US2466237A (en) * 1949-04-05 Portable blower heater
US2563183A (en) * 1946-12-17 1951-08-07 Oliver United Filters Inc Puddler
US2588012A (en) * 1947-10-10 1952-03-04 Perfection Stove Co Spring suspension
US2607819A (en) * 1950-10-20 1952-08-19 O A Sutton Corp Inc Electric motor support
US2840329A (en) * 1954-11-05 1958-06-24 Gen Electric Resilient mounting means
US2867834A (en) * 1953-01-23 1959-01-13 Kingston Products Corp Tank type vacuum cleaner
US2883132A (en) * 1954-11-12 1959-04-21 Gen Tire & Rubber Co Resilient mounting support
US2934296A (en) * 1956-03-05 1960-04-26 Gen Motors Corp Supported body with vibration absorbing resilient cantilever mount
US2988626A (en) * 1958-12-05 1961-06-13 Robbins & Myers Baseboard heater and the like
US3012743A (en) * 1959-10-05 1961-12-12 Jenkins Orville Motor mounting ring
US3031129A (en) * 1958-04-01 1962-04-24 Electrolux Ab Motor-fan unit mounting for vacuum cleaner
DE1225352B (de) * 1958-04-01 1966-09-22 Electrolux Ab Elastische Aufhaengung fuer die Motorgeblaeseeinheit eines Staubsaugers
US3330515A (en) * 1960-05-02 1967-07-11 Licentia Gmbh Machine installation
US4547927A (en) * 1983-12-08 1985-10-22 Shop-Vac Corporation Compact vacuum cleaner
US5647570A (en) * 1994-04-21 1997-07-15 Shop Vac Corporation Vacuum cleaner motor mounting apparatus
US6719541B2 (en) * 2002-04-30 2004-04-13 Northland/Scott Fetzer Company Fan assembly with application to vacuum cleaners
EP1622242A1 (en) * 2004-07-27 2006-02-01 Faber S.p.A. Device for absorbing the vibration in electrical motors

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE220405C1 (en)) * 1959-04-27 1968-05-07
US5112024A (en) * 1988-08-22 1992-05-12 White Consolidated Industries, Inc. Modular room air conditioner and method for making same

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466237A (en) * 1949-04-05 Portable blower heater
US2460682A (en) * 1941-07-23 1949-02-01 Electrolux Corp Mechanical mounting
US2563183A (en) * 1946-12-17 1951-08-07 Oliver United Filters Inc Puddler
US2588012A (en) * 1947-10-10 1952-03-04 Perfection Stove Co Spring suspension
US2607819A (en) * 1950-10-20 1952-08-19 O A Sutton Corp Inc Electric motor support
US2867834A (en) * 1953-01-23 1959-01-13 Kingston Products Corp Tank type vacuum cleaner
US2840329A (en) * 1954-11-05 1958-06-24 Gen Electric Resilient mounting means
US2883132A (en) * 1954-11-12 1959-04-21 Gen Tire & Rubber Co Resilient mounting support
US2934296A (en) * 1956-03-05 1960-04-26 Gen Motors Corp Supported body with vibration absorbing resilient cantilever mount
US3031129A (en) * 1958-04-01 1962-04-24 Electrolux Ab Motor-fan unit mounting for vacuum cleaner
DE1225352B (de) * 1958-04-01 1966-09-22 Electrolux Ab Elastische Aufhaengung fuer die Motorgeblaeseeinheit eines Staubsaugers
US2988626A (en) * 1958-12-05 1961-06-13 Robbins & Myers Baseboard heater and the like
US3012743A (en) * 1959-10-05 1961-12-12 Jenkins Orville Motor mounting ring
US3330515A (en) * 1960-05-02 1967-07-11 Licentia Gmbh Machine installation
US4547927A (en) * 1983-12-08 1985-10-22 Shop-Vac Corporation Compact vacuum cleaner
AU584069B2 (en) * 1983-12-08 1989-05-18 Shop-Vac Corporation Compact vacuum cleaner
US5647570A (en) * 1994-04-21 1997-07-15 Shop Vac Corporation Vacuum cleaner motor mounting apparatus
US6719541B2 (en) * 2002-04-30 2004-04-13 Northland/Scott Fetzer Company Fan assembly with application to vacuum cleaners
EP1622242A1 (en) * 2004-07-27 2006-02-01 Faber S.p.A. Device for absorbing the vibration in electrical motors

Also Published As

Publication number Publication date
FR857188A (fr) 1940-08-29
GB530501A (en) 1940-12-12
NL61479C (en))

Similar Documents

Publication Publication Date Title
US2349215A (en) Vacuum cleaner
US1833754A (en) Vibration damping by impact
US10903714B2 (en) Motor
US2096621A (en) Mounting for electric motors and the like
US20180076683A1 (en) Motor
JP6682659B2 (ja) 特に自動車両の加熱、換気及び／又は空調装置において電気モータを支持するためのアセンブリ
US2647380A (en) Flexible shaft
KR960023818A (ko) 로터리식 압축기
US3128940A (en) Capillary fans
US6028379A (en) Arrangement for the vibration isolating mounting of an electric motor
US1832368A (en) Vacuum cleaner
US3097609A (en) Rag guard for positive displacement pumps
US2540136A (en) Centrifugal blower
US2600353A (en) Vibration isolator
US2097318A (en) Fan
US3500084A (en) Electric motor with support frame and vibration suppressors
US3246538A (en) Casing
US2607819A (en) Electric motor support
US3185099A (en) Motor mounting arrangement for liquid circulator
US2782982A (en) Air impeller and motor unit
US3572975A (en) Motor compressor resiliently suspended in a case
CN111355328A (zh) 电机、安装组件及减振件
CN112211832A (zh) 风扇组件
US2454569A (en) Motor and fan unit mounting for vacuum cleaners
US2060980A (en) Vacuum cleaner