US2683501A - Vacuum cleaner - Google Patents

Vacuum cleaner Download PDF

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Publication number
US2683501A
US2683501A US334151A US33415153A US2683501A US 2683501 A US2683501 A US 2683501A US 334151 A US334151 A US 334151A US 33415153 A US33415153 A US 33415153A US 2683501 A US2683501 A US 2683501A
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US
United States
Prior art keywords
opening
bag
cover
housing
dust
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
US334151A
Other languages
English (en)
Inventor
Robert C Lampe
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 NL157703D priority Critical patent/NL157703C/xx
Priority to BE500106D priority patent/BE500106A/xx
Priority claimed from US140394A external-priority patent/US2641330A/en
Application filed by Electrolux Corp filed Critical Electrolux Corp
Priority to US334151A priority patent/US2683501A/en
Application granted granted Critical
Publication of US2683501A publication Critical patent/US2683501A/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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1481—Means for removing bags in suction cleaners, e.g. ejecting means; Means for exchanging bags
    • 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
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/19—Means for monitoring filtering operation
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user

Definitions

  • the present invention relates to vacuum cleaners of the enclosed bag type and more particularly to such vacuum cleaners provided with means for automatically ejecting the dust bag.
  • a preferred form of such vacuum cleaner includes a closure member which is pivotally connected to the front of the cleaner housing and may be pivoted to a closed position for retaining the dust bag within the housing, and to an open position below and ahead of the dust bag opening. Means are included for moving the dust bag out of the casing upon the opening of the closure member and it is desirable that the thus ejected bag will clear the closure and be deposited on the floor.
  • I provide structure which will assure that the bag, and particularly the forward end thereof, will not catch on the opened cover and be stopped thereby, but will continue to travel over the cover and onto the floor.
  • Figure 1 is a perspective view of a portion of the cleaner and hose showing the cover open, the ejector plate forward and the dust-filled bag in ejected position just prior to its coming to rest on the floor;
  • Figure 2 is a vertical sectional view taken on the line 2-2 of Fig.
  • Figure 3 is a horizontal sectional view taken on the line 3-3 of Fig. 5;
  • Figure 4 is a partial horizontal sectional view similar to Figure 3, but showing the cover opened and the scissors ejector mechanism fully distended;
  • Figure 5 is a front plan view of the vacuum cleaner
  • Figure 6 is a vertical sectional view taken on the line 66 of Fig. 5 showing the parallel linkage of the hose coupling assembly to the cover;
  • Figure '7 is a sectional view taken on the line 1'! of Fig. 5, showing the manually operable button for releasing the front cover;
  • Figure 8 is a sectional view taken on the line 8-8 of Fig. 5 showing the manually operable All switch actuating button for energizing and deenergizing the motor fan unit;
  • Figure 9 is a horizontal sectional view taken on the line 9-9 of Fig. 5 showing the linkage control for automatically releasing the dust bag ejector device;
  • Figure 10 is a wiring diagram including some of the pneumatic controls.
  • Figure 11 is an exploded perspective view with portions cut away in section showing the electro-pneumatic control unit and details of its internal construction.
  • vacuum cleaner housing It is a hollow casing having a handle II. It is appropriately supported on a pair of runners 12.
  • the suction 0r inlet portion of the casing I0 is provided with an air inlet nozzle and wand (not shown) together with a suitable flexible hose I3, Fig. 1 and connecting coupling Ma fitted into a movable hose coupling assembly [5 mounted on cover IS.
  • a cover 16 is pivotally connected at I!
  • a supporting member or platform 28 Extending outwardly in a substantially horizontal direction from body ring 20 at the bottom of the aforesaid bag insertion opening is a supporting member or platform 28.
  • cover 16 is formed with a hollow space between the hinge member Ha into which space platform 28 extends when the cover is in closed position.
  • a perforated sleeve 23 is affixed at one end to front body ring 20 and is adapted for supporting dust bag 30 (of disposable paper or cloth construction).
  • This entire unit (sleeve 23, body ring 30, etc.) is slidably fitted within the open end of cleaner housing I 0 and is affixed thereto by retaining screws 24, Figs. 1, 2, and 6.
  • sleeve 23, reinforced by lateral stiffening plates 25 and base rods 26, is substantially rectangular in cross-section and is thus adapted to take a bag of substantially simi- 3 lar but slightly smaller cross-section, Figs. 1, 2 and 3.
  • Dust bag 30, Fig. 1 comprises a dust receptacle of paper or similarly air-pervious, dust-impervious, material 33 affixed at its mouth, as by gluing, to the rear surface of a hard paper or cardboard disc 3
  • Cardboard disc 3! has a central opening 32 through which tubular member 2
  • perforated sleeve member or dust bag receiving compartment 23 is provided with apertures 21, Figs. 2 and 4, in order to permit suction air current to pass freely therethrough and into chamber 40, the air also passing to compartment 50 containing the ejector scissors 53 and its associated expulsion spring assembly 5I. Thereafter the suction air current passes through motor fan compartment I which contains mounted therein fan II and motor I2. The fan is provided with an air inlet I3 through which the air passes to the housing of motor 12 and out through louver openings '14.
  • the scissors ejector mechanism SI, 53, Figs. 2, 3 and 4 for operating the ba ejector plate 52 is in the form of a collapsible spring loaded lazy tongs 53 which can be collapsed into fully flexed (loaded) condition, Fig. 3, by pushing back ejector plate 52 hingedly attached by pins to the front pair of scissors blades 53a.
  • Mutually intermeshing gear teeth 54 cut in coacting portions of the front pair of scissors blades keep plate 52 oriented correctly throughout the extent of its travel.
  • U-shaped frame member 55' affixed to the rear end of perforated sleeve 23 supports the ends of the rear pair of scissors blades 530 by holding the latter between a pair of sleeves 55, all being bearinged on pin 51.
  • the scissors mechanism is biased to fully distended position by loading springs 58 mounted over each sleeve 55.
  • the scissors ejector mechanism BI, 53 is held in spring loaded position by a depending lug GI', Fig. 2; which is integral with plate 52 and engages, sequentially, front latch 62 and rear latch 63 when plate 52 is pushed to its most rearwardly or spring loaded position, Fig. 3.
  • rear latch 63 is moved to releasing position by automatic triggerin initiated by pneumatically actuated means (described below) and transmitted through link 8 i and a bell crank formed of lever arm 83, pin 85 and lever arm 8'1, Fig. 9, while lever arm 8? is actuated in turn by bell crank 89, Figs. 2, 6 and 9, fulcrumed at 9! and linked directly to the pneumatically operated triggering device 250.
  • pneumatically actuated means described below
  • Front latch 52 is moved to releasing position by the final opening stages of the released front cover I through link 82, and a bell crank form of lever arm 84, pin 86, and lever arm 88', while the latter is actuated by slide or draw bar 92 which is pulled outwardly by a cam 94 on the psarallel linkage I 55 of the hose coupling assembly
  • plate 52 is held in loaded position until cover I6 is practically fully opened.
  • Cover I6 is normally held closed by latch I50, Figs. 1 and '7 fulcrumed at IIlI and biased to retain cover I6 in closed position by tension spring I02.
  • Whether or not the bag properly clears the cover depends on the horizontal and vertical distances between the opening in the body ring 20 and the upper near edge of the hose connector [5 and upon the velocity at which the bag is ejected.
  • the above mentioned horizontal distance must be such that, when the cover is closed, the hose connector will be centered vertically with respect to the opening in the body ring, while the above mentioned vertical' distance is limited by the minimum vertical dimension possible for the hose connector while still havin it large enough to receive the coupling Ma of the hose.
  • I provide the platform 28 extending outwardly from the body rin 20 at the bottom of the bag insertion opening. During the initial portion of the ejection movement of the bag, the latter is supported by this platform and consequently does not start to fall under the force of gravity until it has passed beyond the front end of the platform. The result is that the trajectory of the bag, and particularly of the front end' thereof, is
  • the cover may be opened for inspection of the bag and its contents, however, without necessarily ejecting the dust bag, by pressin release button b on cover It downwards and (Fig. '7) causing plunger I05 held through elongated slot H35 by retaining screw Ill! and biased upwards by spring I08 to contact latch I00. Pressing button iEb forces plunger I 55 downwards against latch I09 thus releasing cover I5. Then, even with front latch 62 released by the openin of cover I6 to its full extent, rear latch 63'restrains scissors ejector 53 from discharging the dust bag.
  • Latch 63 thus serves as an auxiliary safety latch preventing the dust bag in either full or empty condition from being ejected upon manually opening cover 16.
  • latch '52 similarly serves as an auxiliary safety latch preventing the compression and jamming of bag 30 within sleeve member 23 even though latch 53 may have been released by the triggering action of pneumatically operated device 250.
  • pneumatically operated device 250 in addition to triggering rear ejector latch 63 also releases cover restraining latch Hill by actuating lever [31, Figs. 7, 9, 10, fulcrumed at I32.
  • the electrical and pneumatic control units are closely and operatively interrelated.
  • the pneumatic system includes a pressure differential measuring control device 200, Fig. 11, comprising an upper casing 2M and a lower casing 202 separated by a diaphragm 2B3 pneumatically sealed therebetween.
  • the space in the upper casing above diaphragm 233 is connected by communicating conduit 2H1, Figs. 2 and 11 to opening 2
  • the space in the lower casing below diaphragm 203 is connected by communicating conduit 223, T-shaped coupling 22! and common conduit 2:25 to opening 230, Figs. 2, 3, 4 and 9, on the clean side of the dust bag.
  • valve 2&9 When valve 2&9 is open it communicates high suction to the interior of pneumatically operating triggering device 253, comprising a lower casing 25! pneumatically sealed by diaphragm 252 biased to distended or upward position by spring 253 and capable of actuating tripping mechanism through link member 254.
  • Vacuum cleaner electrical cord G conveys current from the house lines at 110 volts to terminal strips 33! located within the cleaner housing and from which one line 332 goes to motor 12, while the other line goes to motor 12 through a circuit including line 305, on-and-ofi switch 3 I 0, line 3
  • the circuit for energizing the electrical controls comprises line 320, electromagnet 325, line 325, pneumatically operated switch 321 of pressure differential pneumatic control unit 283, and line 328 to the house circuit through the cleaner cord 300.
  • the switch 321 of pressure diiferential pneumatic control unit 200 comprises a biasing spring 330, Fig. 11, which serves as a conducting element and for maintaining switch 321 normally open, together with contacts 33l and 332.
  • substantially mechanical trigger mechanism comprising cam 94 of parallel linkage H5 trips draw bar 92 releasing front latch 62 and hence the bag ejector mechanism 5
  • the ejector plate 52 moves forward and outward when released until stops 50, Fig. 4, abut in the forepart of the scissors mechanism 53.
  • the momentum of the moving dust-filled bag causes it to continue onward in its own trajectory out of the cleaner casing after which it comes to rest on the floor.
  • a housing defining a dust container compartment formed with an opening, means for supporting said housing on a horizontal surface with said opening disposed in a substantially vertical plane and with the bottom of the opening spaced above said surface, a dust container receivable in said compartment, a closure member for said opening, means for pivotally connecting said closure member to said housing for pivotal movement of said member to an open position outwardly from and below said opening, means for imparting movement to said container to eject the latter from said compartment through said opening when said member is in open position, and supporting means extending outwardly from said housing at the bottom of said opening for supporting said container during the initial portion of its ejection movement to enable it to travel over said member in open position.
  • a housing defining a dust container compartment formed with an opening, means for supporting said housing on a horizontal surface with said opening disposed in a substantially vertical plane and with the bottom of the opening spaced above said surface, an elongated dust container receivable in said compartment in a substantially horizontal position, a closure member for said opening, means for pivotally connecting said closure member to said housing for pivotal movement of said member to an open position outwardly from and below said opening, means for applying force to the inner end of said container to eject the latter from said compartment through said opening when said member is in open position, and a platform extending outwardly from said housing at the bottom of said opening for supporting said container during the initial portion of its ejection movement to enable it to travel over said member in open position.
  • a housing defining a dust container compartment formed with an opening, means for supporting said housing on a horizontal surface with said opening disposed in a substantially vertical plane and with the bottom of the opening spaced above said surface, a dust container receivable in said compartment, a closure member for said opening, means for pivotally connecting said closure member to said housing below said opening for pivotal movement of said member to an open position outwardly from and below said opening, means for imparting movement to said container to eject the latter from said compartment through said opening when said member is in open position, and a platform extending outwardly from said housing at I the bottom of said opening for supporting said container during the initial portion of its ejection movement to enable it to travel over said member in open position, said member being formed with a hollow portion into which said platform is received when the member is in closed position.
  • a housing defining a dust container compartment formed with an opening, means for supporting said housing on a horizontal surface with said opening disposed in a substantially vertical plane and with the bottom of the opening spaced above said surface, a dust container receivable in said compartment, a closure member for said opening, said closure member including structure pivotally connected to said housing below said opening and a hose connector pivotally mounted on said structure, said closure member being pivotal to an open position outwardly from and below said opening and in which said hose connector extends above said structure, means for imparting movement to said container to eject the latter from said compartment through said opening when said member is in open position, and supporting means extendoutwardly from said housing at the bottom of said opening for supporting said container during the initial portion of its ejection movement to enable the forward end of the container to clear the near upper edge of said hose connector.
  • a housing defining a dust container compartment formed with an opening, means for supporting said housing on a horizontal surface with said opening disposed in a substantially vertical plane and with the bottom of the opening spaced above said surface, a dust container including a relatively stiff end disc seatable in said opening and a bag secured to said disc and receivable in said compartment, a closure member for retaining said disc in said opening, said closure member including structure pivotally connected to said housing below said opening and a hose connector pivotally mounted on said structure, said closure member being pivotal to an open position outwardly from and below said opening and in which said hose connector extends above said structure, means for imparting movement to said container to eject the latter through said opening when said member is in open position, and a platform extending outwardly from said housing at the bottom of said opening for supporting said container during the initial portion of its ejection movement to cause the lower edge of said disc to clear the near upper edge of said hose connector.
  • a housing defining a dust container compartment formed with an opening, means for supporting said housing on a horizontal surface with said opening disposed in a substantially vertical plane and with the bottom of the opening spaced above said surface, a dust container receivable in said compartment, a closure member for said opening, a pair of spaced hinges for connecting said closure member to said housing below said opening for pivotal movement of said member to an open position outwardly from and below said opening, said closure member having a hollow space between said hinges, means for imparting movement to said container to eject the latter from said compartment through said opening when said member is in open position, and a platform having a width less than the distance between said hinges and extending outwardly from said housing at the bottom of said opening for supporting said container during the initial portion of its ejection movement to enable it to travel over said member in open position, said platform extending into the hollow space in said closure member when the latter is in closed position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
US334151A 1950-01-25 1953-01-30 Vacuum cleaner Expired - Lifetime US2683501A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL157703D NL157703C (xx) 1950-01-25
BE500106D BE500106A (xx) 1950-01-25
US334151A US2683501A (en) 1950-01-25 1953-01-30 Vacuum cleaner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US140394A US2641330A (en) 1950-01-25 1950-01-25 Vacuum cleaner
US334151A US2683501A (en) 1950-01-25 1953-01-30 Vacuum cleaner

Publications (1)

Publication Number Publication Date
US2683501A true US2683501A (en) 1954-07-13

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Application Number Title Priority Date Filing Date
US334151A Expired - Lifetime US2683501A (en) 1950-01-25 1953-01-30 Vacuum cleaner

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US (1) US2683501A (xx)
BE (1) BE500106A (xx)
NL (1) NL157703C (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764255A (en) * 1954-01-25 1956-09-25 Electrolux Corp Automatic vacuum cleaners
US2948913A (en) * 1954-07-20 1960-08-16 Bernard J Tamarin Vacuum cleaner construction
US3029462A (en) * 1954-07-20 1962-04-17 Vacuum Cleaner Corp Of America Vacuum cleaner and cord-reel construction

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641330A (en) * 1950-01-25 1953-06-09 Electrolux Corp Vacuum cleaner

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641330A (en) * 1950-01-25 1953-06-09 Electrolux Corp Vacuum cleaner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764255A (en) * 1954-01-25 1956-09-25 Electrolux Corp Automatic vacuum cleaners
US2948913A (en) * 1954-07-20 1960-08-16 Bernard J Tamarin Vacuum cleaner construction
US3029462A (en) * 1954-07-20 1962-04-17 Vacuum Cleaner Corp Of America Vacuum cleaner and cord-reel construction

Also Published As

Publication number Publication date
NL157703C (xx)
BE500106A (xx)

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