US2174560A - Suction cleaner - Google Patents

Suction cleaner Download PDF

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Publication number
US2174560A
US2174560A US114633A US11463336A US2174560A US 2174560 A US2174560 A US 2174560A US 114633 A US114633 A US 114633A US 11463336 A US11463336 A US 11463336A US 2174560 A US2174560 A US 2174560A
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US
United States
Prior art keywords
nozzle
casing
cleaner
fan
agitator
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
US114633A
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English (en)
Inventor
Bernard C Becker
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
Application filed by Hoover Co filed Critical Hoover Co
Priority to US114633A priority Critical patent/US2174560A/en
Priority to GB32873/37A priority patent/GB506512A/en
Priority to FR839773D priority patent/FR839773A/fr
Priority to DEH153891D priority patent/DE685619C/de
Application granted granted Critical
Publication of US2174560A publication Critical patent/US2174560A/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
    • 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

  • This invention relates to improvements in.
  • suction cleaners and more particularly to suction cleaners of the portable handle-maneuvered type, capable of being converted into a suction producing unit for carrying on cleaning operation through a hose extension and auxiliary dusting tools.
  • suction cleaner embodying the novel features hereinafter to be set forth may be characterized generally by a cylindric housing,
  • This type of suction cleaner may also be characterized by the mounting of the handle directly upon the rotative housing so that the two swing together and as parts of the same unit that includes the dirt bag attached at its lower end to an exhaust outlet from the fan chamber and its outer end to the handle.
  • the cleaning effectiveness of a suction cleaner is materially increased by mounting a rotary agitator in the nozzle chamber, the same preferably having the form of a cylinder with brush and beater elements projecting from the surface thereof.
  • the agitator extends lengthwise of the suction mouth and otherwise positioned so that the beater and brush elements come into contact with the carpet surface in the normal operation of cleaning rugs and carpets.
  • the cleaner when the cleaner is operating with auxiliary dust tools, it may stand at one place on the carpet for some length of time and unless the contact between the carpet and agitator is interrupted, there is likelihood of undue carpet wear.
  • the object of the present invention is to eliminate the uncertain dependence upon the user by making it compulsory to raise the nozzle out of contact with the carpet surface before it is possible to make the conversion to dusting tool operation.
  • the converter and nozzle raising means are so associated that the conversion automatically includes the nozzle raising, all of which will now be described in greater detail and in connection with the accompanying drawings in which,
  • Figure l is a general view in side elevation of a complete cleaner type and including the novel features hereinbefore alluded to,
  • Figure 2 is an enlarged view in side elevation showing the main part of the cleaner with the nozzle in its normal relation to the carpet surface
  • Figure 3 is a top plan view of the cleaner with portions of the outer walls removed to show the internal construction
  • Figure 4 is a view in side elevation taken from the opposite side of the cleaner fromthat shown in Figure 2, and with portions of the side wall removed to show the belt drive for the agitator,
  • Figure 5 is another view in side elevation corresponding to the showing of Figure 2, but with the cleaner adjusted for dusting tool operation, namely, with the handle in its upright or storage position, the converter member attached and the nozzle in its elevated position,
  • FIG. 6 is a fragmentary view in vertical section through the fan chamber of the cleaner as taken on line 66 of Figure 2,
  • Figure '1 is a detail view in cross section through the converter port showing the converter member in position as taken on line 1-1 of Figure 5.
  • Figure 8 is a view in side elevation of the same type of cleaner, but showing a slightly modified arrangement for lifting the nozzle.
  • Figure 9 is a fragmentary view of the cleaner showing in detail the nozzle portion of the cleaner casing in side elevation and,
  • Figure 10 is a fragmentary bottom plan view of the portion of the cleaner immediately ad jacent one end of the nozzle.
  • the same comprises a carriage I consisting generally of a horizontal U- shaped frame extending transversely beneath the body of the cleaner with its open side facing forwardly.
  • a carriage frame la At the front and rear ends of the carriage frame la are mounted pairs of supporting wheels 2 and 3 respectively, positioned well outwardly along the sides of the cleaner as shown in Figure 3. Supported by the carriage front wheels 2.
  • Pivot pins I4, I4 Pivot pins I4, I4
  • a cylindric housing 4 forming a casing at one end for the motor 5, the space adjacent the opposite end forming a fan chamber 6 separated from the motor casing by a transverse partition wall 6a, as shown in Figure 6.
  • a suction fan I directly connected with the motor 5 is located within the fan chamber, the latter including a radially projecting exhaust passage Ia terminating in a flanged connection to which a, dirt bag 8 is removably attached at its lower end and suitably suspended at its upper end from the handle 9 as clearly shown in Figure 1.
  • the handle preferably of a tubular form, is supported within a socket l formed integral with the ro tative housing 4 and extending substantially tangentially therefrom in parallel relation with and just above the exhaust outlet Ia as shown in Figure 2.
  • a nozzle casing II Carried by the carriage I and having pivotal connection therewith, is a nozzle casing II which comprises not only the main nozzle or nozzle chamber IIa extending transversely of the front of the cleaner, but also a pair of transversely spaced hollow sections I2, I2 extending rearwardly and upwardly from the main part of the nozzle casing and embracing the cylindric housing 4 between them, although, as will presently be pointed out, there is no direct or operative connection between housing 4 and the nozzle casing II, inasmuch as they are independently supported upon the wheeled carriage I.
  • the nozzle casing II is pivotally hung or suspended between two upstanding brackets I3, I3 formed integral with the forward ends of the carriage frame la and located just inwardly from the pass through the upper ends of the brackets I3, I3 and are anchored in the side walls of the casing just rearwardly of the nozzle chamber and along the lower edge of the rearwardly extending sections I2, I2, as clearly shown in Figure 6.
  • bearing plates I5, I5 fastened along the sides of the carriage frame I a and lying in vertical planes just outwardly from the ends of the rotative housing 4.
  • these bearing plates are somewhat irregular in contour, extending vertically from the rear of the carriage frame, thence curving forwardly in an arc of 45 degrees to form a sector passing above the central axis of the housing 4 and upon reaching a point tangential with the periphery of the said housing, continued downwardly and forwardly for a short distance in straight edges inclined at angles of 45 degrees to the vertical,
  • transverse closure plate I5a' which covers the cavity formed between the cylindricsurfaces of the housing 4 and the rounded lip IIb projecting upwardly and rearwardly from the nozzle chamber between the sections I2, I2.
  • annular openings I55, I51 are annular openings concentric with the central and formed by inwardly axis of the housing 4 turned annular flanges.
  • each end of the. housing 4 is an annular opening concentric just inwardly beyond the I5b in the bearing plates end plate I6 having a central with and located flanged openings I 5b,
  • end plates I 6 are nion bearings at each end of the rotative housing 4, as clearly shown in Figures 3 and 6.
  • the hollowsection I2 of the nozzle casing forms an air passage from the nozzle chamber to the opening to the fan chamber or fan eye, although it should be noted that the inner sides of these sections are entirely open, but with the bearing plates I5, I5 in sealing contact with the edges of the transverse walls, fairly tight passagesare formed.
  • the corresponding section I2 likewise communicates with the nozzle chamber but serves only as a housing for a belt I9 for driving the agitator extendinglengthwise of the nozzle chamber and suitably journalled at its ends for comparatively high speed operation.
  • This belt I9 is driven from. a pulley 2I forming an extension of the motor armature shaft 5a, and which, as clearly shown in Figure 3, projects or extends through the annular opening I5b in the adjacent bearing plate I5 and into the upper end of the casing section I2 just beyond.
  • a belt tensioning member 22 co-acting with the belt I9 is a belt tensioning member 22 mounted within the section I2 and arranged lengthwise along its bottom wall.
  • This tensioning member consists essentially of a spring-pressed arm carrying a roller 22a, contacting the lower lead of the driving belt I9 and serves to maintain the belt tight for reasons that presently may be seen.
  • the agitator 20 of a standard design and construction, consists primarily of a cylindric metal shell provided with longitudinal brush elements 29a and helically arranged beater elements 20b in the form of rounded bars on its outer surface.
  • a recessed annular shell carries the driving belt I9.
  • FIG 2 wherein the air passage formed within the casing section 12 is shown as being divided substantially lengthwise by an integral partition of the wall 23 which starts at its forward end in a line tangential to parallel with the bottom wall of the section andfinally terminating in a rounded arcuate wall section which merges with the bottom wall section of the casing section to complete a semicircular closure around the upper half of the opening I5b to the fan chamber.
  • This internal partition wall thus divides the internal space of the hollow casing section I2 into a passage 24 of uniform area directly connecting the nozzle chamber with the fan chamber and a somewhat triangular shapedspace 25 which is entirely closed off from the nozzle chamber but has an annular opening 26 from the exterior, although normally this opening is closed by a removable circular cover plate 21 held in place by a suitable retaining spring 21a riveted to its inner face.
  • This covered opening 26 is of the same diameter belt groove in the agitator explained.
  • the dirt-laden air is carried directly to the fan chamber through the connecting passageway 24 within the casing section l2, and thence exhausted in the dirt bag 8 in the usual manner.
  • the nozzle casing is held stationary with the suction mouth thereof parallel with and in contact with the carpet surface, notwithstanding it is mounted to swing bodily about its pivot points H from the position shown in Figure 2 to that in Figure 5 and by merely pressing downwardly upon the upper end of one of the hollow sections '
  • spring-pressed latch members 28 are mounted at the upper end of each of the two casing sections
  • This swinging movement of the nozzle not only raises the agitator out of contact with the carpet surface, but also shifts the upper end of the passage 24 within the nozzle casing out of register with the entrance to the fan chamber and brings the converter port 26 into register therewith. And finally. after removing the converter port cover plate 21. a converter fitting 30 is then inserted through the port 26 with its inner end seating tightly in the fan eye as clearly shown in Figure '7.
  • the converter member 30 is essentially a metal L-shaped fitting or elbow provided at its attaching end with suitable spring clips 30a, 30a for holding it in converting position and suitably coupled with the end of the dusting tool hose 3
  • nozzle casing 33 is the same as before except that at some point adjacent its it is provided with an arm 33a extending rearwardly and horizontally from its curved rear wall and terminating in a slightly upturned pointed end which just clears the outer surface of the rotative housing 34.
  • the rotative jection or lug 34a On the surface of the rotative jection or lug 34a preferably formed by upsetting,th e housing wall outwardly as clearly shown in Figure 8, and so located circumferentially .of the housing that, as the latter is rotated in a counterclockwise direction with the swinging of the handle toward its vertical position, the lug strikes the contact arm 33a and tilts the nozzle casing upwardly into the dotted line position.
  • the nozzle is held in its raised or tilted position and the conversion can thus be completed in the same manner as before described.
  • the converter member is removed; then by swinging the handle downwardly from its storage position, the
  • a torsion spring 35 is coiled several times around the head of each of the pivot pins 36, with the ends thereof extending forwardly and rearwardly in opposite directions, the forward end being anchored to the nozzle casing and the rearwardly projecting end being anchored to the frame of the carriage I as clearly shown in Figure 9.
  • the springs act to yieldingly force the nozzle in a downward direction and against the force tending to tilt the same upwardly.
  • the feature of the modified arrangement is the tilting of the nozzle automatically by the raising of the handle into its vertical position and conversely, the lowering of the nozzle into its normal position in the act of displacing the handle from its storage position.
  • the arrangement herein shown has as its essential and novel features the lifting of the agitator out of contact with the carpet surface and simultaneously interrupting its driving connection with the motor before the conversion to dusting tool operation can be efiected.
  • a suction cleaner adapted to be converted to and from oif-the-floor operation, the combination of a casing including suction-creating means, a nozzle pivotally mounted on said casing for limited tilting movement about a horizontal transverse axis and having an air passage normally communicating with an inlet opening to said suction-creating means and a port oiiset from said air passage and adapted to register with said inlet opening in the tilted position of said nozzle to permit a converter member to be inserted externally therethrough and into said inlet opening.
  • a suction cleaner adapted to be converted to and from ofi-the-floor cleaning operation, the combination of a casing including a fan chamber having an air inlet opening, a fan mounted in said fan chamber, a motor for driving said fan, a nozzle pivotally mounted on said casing for bodily tilting movement relative thereto and having an air passage normally communicating with the opening to said fan chamber, and an agitator driven by said motor mounted in said nozzle and adapted in the tilting movement of said nozzle to be raised out of contact with the floor as said passage is swung out of registering relation with the opening to said fan chamber to permit the insertion of a converter member.
  • a suction cleaner adapted to be converted to and from ofl-the-floor cleaning operation, the combination of a casing including a fan chamber having an inlet opening, a fan mounted in said fan chamber, a motor for driving said fan, a nozzle pivotally mounted on said casing for bodily tilting movement and having an air passage noreration, the combination of mally communicating with the opening to said fan chamber and a separate converter port normally out of register with said opening, and an agitator driven by said motor mounted in said nozzle and adapted to be raised above the floor in the tilting movement of said nozzle to bring said port into registering relation with the opening to said fan chamber to receive a converter member.
  • a suction cleaner adapted to be converted to and from oif-the-fioor cleaning operation, the combination of a casing enclosing a motor-driven fan rotative about a horizontal axis and having an inlet opening, a nozzle casing pivotally mounted to swing about a horizontal axis relative to said fan casing and having a nozzle chamber and an extension thereof forming an air passage normally communicating with said inlet opening, said extension of the ,nozzle casing also having an externally accessible converter port adjacent to but separated from said air passage and adapted, in the swinging movement of said nozzle casing in adirection to raise its mouth above the floor to be brought into register with the inlet opening to said fan chamber, and a closure plate for said converter port adapted to be removed to permit the insertion of a converter member therethrough and into said opening to convert said cleaner for oif-thefloor cleaning operation.
  • a suction cleaner adapted to be converted to and from off-the-floor cleaning opa casing having a chamber enclosing a motor-driven fan rotative about a horizontal axis and having an inlet opening at one end, a nozzle casing pivotally mounted to swing about a horizontal axis relative to said fan casing and having a nozzle chamber and an air passage from said nozzle chamber to said inlet opening to said fan chamber, said nozzle casing section also having an externally accessible converter port adjacent to but separated from said air passage and adapted, in the swing ing movement of said nozzle casing in a direc-- tion to raise the same above the floor, to be brought into register with said inlet opening to said fan chamber to permit the insertion of a converter member therethrough and into said opening to convert said cleaner to off-the-floor operation, and means for holding said nozzle casing in its elevated position.
  • a suction cleaner adapted to be converted to and from off-the-floor operation, the combination of a wheel supported casing provided with a fan chamber having an air inlet opening at one end thereof, a motor-driven fan mounted in said fan chamber, a nozzle pivotally mounted to swing about a horizontal transverse axis relative to said wheel supported casing, an agitator journalled in said nozzle, the latter including a hollow section forming an air passageway normally connecting said nozzle with the inlet opening to said fan chamber and having an externally accessible converter port offset from said air passageway, said port being adapted to be brought into register with said inlet opening in the swinging movement of said nozzle in a direction to raise said agitator out of contact with the floor to permit the attachment of a converter member.
  • suction-creating means including a motor-driven fan housed within a fan chamber having its axis extending horizontally, a nozzle pivotally mounted to swing about an axis parallel with the axis of said fan chamber and comprising a nozzle chamber and a pair of transversely extending casing sections embracing said fan chamber and forming passages communicating with said nozzle chamber at their lower end, said fan chamber having an inlet opening adapted to communicate with one of said passages, a rotataive agitator journalled in said nozzle chamber, and a motor-driven agitator driving belt housed within the other of said nozzle casing sections, said nozzle casing being adapted to be tilted bodily in a direction to raise the nozzle above the floor level and to bring the axes of said motor and agitator toward each other, whereby said air passage from the nozzle is shifted out of register with the inlet to said fan chamber
  • a suction cleaner adapted for conversion to and from oif-the-fioor cleaning operation, the combination of a carriage, a cylindric casing supported by said carriage, a nozzle pivotally mounted on said carriage for limited rotative movement about a horizontal axis parallel with the axis of said casing, the latter including a fan chamber having an axially arranged inlet opening at one end thereof, a fan mounted in said fan chamber, a motor having driving connection with said fan, a .rotative agitator journalled in said nozzle casing, a pair of transversely extending casing sections integral with said nozzle casing and forming passages connecting said nozzle with the ends of said casing, one of said passages being connected with the inlet opening to said fan chamber, and a drive belt from said motor to said agitator located in the other passage, said nozzle casing being shiftable in a direction to raise the agitator above the floor level and simultaneously to expose the inlet opening to said fan chamber to the introduction of a converter member
  • a wheeled carriage including spaced upright bearmg members, a cylindric casat the fan chamber end of said casing normally communicating at its outer end with an inlet opening to said fan chamber, an agitator mounted in said nozzle, a drive belt for said agitator enclosed within the other of said passageways, the pivotal axis of said nozzle being offset from and below the ,center line of said belt, thereby effecting a slackening of the belt and exposing the inlet opening to said fan chamber to the introduction of a converter fitting through an externally accessible port in the adjacent nozzle section as the nozzle is tilted bodily to raise the agitator out of contact with the carpet surface.
  • a suction cleaner adapted to be converted to and from off-the-floor cleaning operation, the combination of a carriage, a motor and fan casing rotatively mounted uponsaid carriage to turn about a horizontal axis, a handle integral with said fan casing, a nozzle casing mounted upon said carriage and adaptedsto tilt about a horizontal axis parallel to and offset from the axis of rotation of said tan casing, said nozzle casing having a radially disposed hollow section forming an air passage normally communicating with an inlet opening to said fan casing, a motordriven agitator carried by said nozzle casing and adapted in the normal position of said nozzle casand nozzle casing and adapted, in.the swinging the combination of a carriage, a casing enclosing.
  • a motor-driven fan journalled upon said carriage for limited rotation about a horizontal axis
  • a handle integral with said casing and adapted to swing to and from a vertical storage position
  • a nozzle pivotally mounted on said carriage to tilt about a horizontal axis offset from the axis of said casing
  • a motor-driven agitator rotatively mounted in said nozzle and adapted to contact the floor covering during on-the-floor cleaning operations
  • said casing having an air inlet opening at one end and said nozzle having a hollow section forming an air passage normally communicating with said air inlet opening and coacting cam members on said casing and nozzle and'adapted in the rotation of said casing by said handle in its movement into storage position to lift said nozzle thereby simultaneously raisin said agitator out 01' contact with the floor surface and displacing said nozzle section to permit the insertion of a converter member into said inlet opening.

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  • Nozzles For Electric Vacuum Cleaners (AREA)
US114633A 1936-12-07 1936-12-07 Suction cleaner Expired - Lifetime US2174560A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US114633A US2174560A (en) 1936-12-07 1936-12-07 Suction cleaner
GB32873/37A GB506512A (en) 1936-12-07 1937-11-29 Improvements in or relating to suction cleaners
FR839773D FR839773A (fr) 1936-12-07 1937-12-06 Perfectionnements aux appareils de nettoyage par aspiration
DEH153891D DE685619C (de) 1936-12-07 1937-12-07 Staubsauger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US114633A US2174560A (en) 1936-12-07 1936-12-07 Suction cleaner

Publications (1)

Publication Number Publication Date
US2174560A true US2174560A (en) 1939-10-03

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Application Number Title Priority Date Filing Date
US114633A Expired - Lifetime US2174560A (en) 1936-12-07 1936-12-07 Suction cleaner

Country Status (4)

Country Link
US (1) US2174560A (fr)
DE (1) DE685619C (fr)
FR (1) FR839773A (fr)
GB (1) GB506512A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627623A (en) * 1949-02-15 1953-02-10 Hoover Co Agitator raiser and belt release for suction cleaners
US2730752A (en) * 1950-07-26 1956-01-17 Hoover Co Nozzle adjustment for suction cleaner
US2747215A (en) * 1951-04-03 1956-05-29 Hoover Co Converter controlling handle position in suction cleaner
US2898622A (en) * 1955-11-30 1959-08-11 Hoover Co Combination suction cleaners
US4573236A (en) * 1983-07-08 1986-03-04 Prototypes, Ltd. Vacuum cleaning appliances
US5255411A (en) * 1991-07-29 1993-10-26 Iona Appliances Inc. Lift-off mechanism for an upright vacuum cleaner
US5974622A (en) * 1998-05-08 1999-11-02 The Hoover Company Transmission neutral locking arrangement for a self-propelled vacuum cleaner
US5983442A (en) * 1997-06-06 1999-11-16 The Hoover Company Carpet extractor with automatic conversion
US6131238A (en) * 1998-05-08 2000-10-17 The Hoover Company Self-propelled upright vacuum cleaner with offset agitator and motor pivot points
EP2567649A1 (fr) * 2011-09-07 2013-03-13 Bissell Homecare, Inc. Aspirateur avec dispositif d'entraînement de courroie

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3618687A (en) * 1969-07-01 1971-11-09 Hoover Co Power propelled suction cleaner
US9345371B2 (en) 2012-12-12 2016-05-24 Electrolux Home Care Products, Inc. Vacuum cleaner base assembly
US20140157543A1 (en) 2012-12-12 2014-06-12 Electrolux Home Care Products, Inc. Vacuum cleaner base assembly

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627623A (en) * 1949-02-15 1953-02-10 Hoover Co Agitator raiser and belt release for suction cleaners
US2730752A (en) * 1950-07-26 1956-01-17 Hoover Co Nozzle adjustment for suction cleaner
US2747215A (en) * 1951-04-03 1956-05-29 Hoover Co Converter controlling handle position in suction cleaner
US2898622A (en) * 1955-11-30 1959-08-11 Hoover Co Combination suction cleaners
US4573236A (en) * 1983-07-08 1986-03-04 Prototypes, Ltd. Vacuum cleaning appliances
US5255411A (en) * 1991-07-29 1993-10-26 Iona Appliances Inc. Lift-off mechanism for an upright vacuum cleaner
US5983442A (en) * 1997-06-06 1999-11-16 The Hoover Company Carpet extractor with automatic conversion
US5974622A (en) * 1998-05-08 1999-11-02 The Hoover Company Transmission neutral locking arrangement for a self-propelled vacuum cleaner
US6131238A (en) * 1998-05-08 2000-10-17 The Hoover Company Self-propelled upright vacuum cleaner with offset agitator and motor pivot points
EP2567649A1 (fr) * 2011-09-07 2013-03-13 Bissell Homecare, Inc. Aspirateur avec dispositif d'entraînement de courroie
US8756757B2 (en) 2011-09-07 2014-06-24 Bissell Homecare, Inc. Vacuum cleaner with belt drive disengager

Also Published As

Publication number Publication date
GB506512A (en) 1939-05-30
FR839773A (fr) 1939-04-12
DE685619C (de) 1939-12-22

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