US2218184A - Suction cleaner - Google Patents

Suction cleaner Download PDF

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Publication number
US2218184A
US2218184A US126653A US12665337A US2218184A US 2218184 A US2218184 A US 2218184A US 126653 A US126653 A US 126653A US 12665337 A US12665337 A US 12665337A US 2218184 A US2218184 A US 2218184A
Authority
US
United States
Prior art keywords
cleaner
lever
chassis
nozzle
carriage
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
US126653A
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English (en)
Inventor
Charles H Taylor
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
Priority to FR835216D priority Critical patent/FR835216A/fr
Application filed by Hoover Co filed Critical Hoover Co
Priority to US126653A priority patent/US2218184A/en
Priority to GB2147/38A priority patent/GB494287A/en
Priority to DEH154716D priority patent/DE679788C/de
Application granted granted Critical
Publication of US2218184A publication Critical patent/US2218184A/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
    • A47L5/34—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with height adjustment of nozzles or dust-loosening tools

Definitions

  • the present invention relates to suction cleaners in general and particularly to new and 'novel supporting means by which the cleaner body is adjustably supported relative. to asurface covering undergoing cleaning. More specifically,
  • the invention comprises a suction cleaner in which the cleaner body is pivotally supported upon an ambulatory chassis in such a manner that at least a part of the weight of the forwar part of the cleaner is counterbalanced.
  • nozzle height adjusting mechanism herein disclosed and described forms the subject matter of copending application Serial Number 102,883, filed September 28, 1936, now Batent 2,146,006. It is an object of the present invention to provide a new and improved suction cleaner. It is another object of the invention to provide a new and improved connection between the body and the chassis of a suction cleaner. A still further object is the provision, in a suction cleaner, of av pivoted body which is pivotally supported upon an ambulatory chassis and which is spring counterbalanced to offset at least a part of the nozzle weight.
  • Still another object is to provide a suction cleaner in which semi-automatic adjusting means raise and lower the cleaner nozzle relative to the surface covering undergoing cleaning, and relative to its supporting chassis, there being counte'rbalancing means to oflset at ieast a part ofthe weight of in connection therewith the attached drawings to which they relate.
  • Figure 1 is a side view of a suction cleaner embodying the present invention with certain parts broken away to show the semi-automatic nozzle height adJusting means and the pivotal counter-balancing connection between the cleaner body and the ambulatory chassis;
  • Figure 2 is a bottom view of the cleaner shown in Figure 1; n
  • Figure 3 is an enlarged showing of the knife edge pivotal connection between the cleaner body and the chassis as illustrated -'in Figure 1;
  • Figure 4 is a transverse section, upon the line
  • the height of the suction cleaner nozzle relative to the surface covering undergoing cleaning is adjusted by means which are semi-automatic in the sense that the operator need only depress an actuating lever to efiect a proper adjustment regardless of the operating conditions.
  • a pivotal connection m between a cleaner body and its supporting chassis by which the body is partially counterbalanced at its n-ozzle'end to permit of eflicient and effective nozzle adjustment by the semi automatic means.
  • a modern suction cleaner isdisclosed and comprises a body proper I which includes a nozzle 2 having front and rear lips 3 and 4, respectively, and which is interiorly connected by a passageway 5 to the eye 6 of a fan chamber'l.
  • the body I also includes a motor hood III which encloses an unshown driving motor, the shaft I I of which A rotatable agitator I3, including rigid beater aoelements It and brush elements I5, is positioned within the nozzle 2 being adapted to'contact the surface covering undergoing cleaning between the lips ⁇ and 4.
  • a power-transmitting belt I6 connects agitator I3 to the driving shaft II and 36 upon the rotation of the motor agitator I1 is driven.
  • the entire cleaner body, together with the filter bag 9, is supported upon a Y-shaped chassis '20, perhaps best illustrated inF-igure 5.
  • the 4 chassis itself is movably supported by front wheels I8, IB'which are enclosed in the bifurcated downwardlyeinten'ding forward extg'gnities of each of the arms of the chess and by spaced rear wheels I9, I9 positioned at ihe foot of the Y.
  • the chassis 20 is positioned-under body l of the cleaner and is substantially hidden from view. by the depending side walls which extend rear wardly from nozzle 2.
  • V- to shapedupwardly faclng channels are provided which are adapted to receive and tiltingly seat downwardly depending knife edges or shoulders 22, 22 formed on the underside of body I immediately thereabove.
  • the cleaner body is drawn to and held against the chassis 20 through the cooperation of a compression coil spring 23 which encircles a depending threaded bolt 24 carried by the underside of body and which extends through a relatively large opening 25 positioned in the chassis between rthe V-shaped seats 2
  • An internally threaded nut member 26 seats upon bolt 24 and contacts the lower end of coil spring 23 which is sufli-ciently compressed to draw the bolt and so the cleaner body downwardly.
  • a protector cup 2.! is provided which encloses the spring and seats directly on nut 26.
  • bolt 24 is positioned rearwardly of a vertical plane through the line of contact of depending knife edge shoulders 22, 22 of the body with their seats 2
  • nozzle adjustment means are only illustrative of the general type of adjustment with which the counterbalancing pivotal mounting invention, it being claimed in a co-pending ap-,
  • the present invention in which the cleaner body is movable relative to the supporting chassis and is counterbalanced, is
  • the particular nozzle height adjustment illustrated includes a fixed, inclined abutment member 30 secured to the underside of body and movable therewith. This abutment is contacted by a cam 3
  • a bell-crank 35 is also pivoted upon pin 33 and has at its lower and forward extremity a pin 36 which pivotally carries a pawl lever 31 formed with a dog 38 at its outer end which is adapted to seatupoon the ratchet teeth at the rear and of lever 32.
  • a coil spring 39 encircles bell-crank-carried pin 36 and contacts the crank at one of its' extremities and at its other underlies pawl lever 31 urging that member upwardly at all times.
  • dog 38 of pawl lever 31 contacts an abutment 40 formed on the underside of the adjacent arm of chassis 20.
  • This rigid unit is pivotally mounted by the pin 33 uponchassis 20 and is, in normal cleaner operation, held in a fixed position by the foot lever which is pivoted by pin 46 to thechassis.
  • Lever 45 is spring urged to an uppermost position by a. chassis-carried coil spring 43 which encloses and urges upwardly therod 44 carried by the lever 45 rearwardly of its pivot pin 46. Forwardly of the pin 46,
  • lever 45 is formed with an arm 41 which slidingly encloses'a pin 48 carried by bell-crank 35.
  • the operation of the suction cleaner constructed in accordance with the present invention is like that of other common and well known Y cleaners when performing the cleaning operation.
  • the distinction, however, from prior cleaners lies in the perfection of the nozzle height adjustment when the cleaner body is mounted to the supporting chassis, as taught by this invention.
  • This superiority arises from the fact that in semi-automatic nozzle adjustments of the type disclosed, a pre-requisite condition to the proper adjustment of the nozzle is that the nozzle, or some part of the cleaner body as distinguished from the supporting chassis, shall rest substantially upon the very top of the covering to be cleaned in order to gauge the height thereabove to which the nozzle should be lifted.
  • the supporting chassis cannot perform this gauging function for the weight which it supports causes it to sink into the covering.
  • the cleaner body cannot satisfactorily perform this function if it exerts too great a force in contacting the covering.
  • the body weight is sufficiently counter-balanced, or compensated for, that the surface contacting body part can rest on the top of the covering and will not sink therein.
  • the first operation should be to adjust the cleaner nozzle, together withthe agitator carried thereby, in proper position to operate with maximum efi'ectiveness upon the covering.
  • the operator accomplishes this by depressing the rear ,end of foot lever 45. From that point on the entire adjustment is automatic and the following takes place.
  • camratchetlever 32 The position of the camratchetlever 32 at the time of this engagement, it should be noted, is determined by the position to which the lever has been pivoted by the body abutment acting on cam 3
  • the height to which the nozzle is raised above the supporting surface by the adjustment may or may not be identical with its original height. Its final position is determined by what part of the cam 3
  • a suction cleaner the combination of a wheeled carriage, a body supported upon said carriage for limited tilting movement about a horizontal transverse axis offset from the center of mass of said body in a rearward direction, releasable means normally supporting said body against tilting, a bolt anchored in one and extending through an aperture in the other of said carriage and body and offset a short distance from the axis of tilting movement of said body, and a spring'carried by said bolt to counterbalance in part the forces acting to tilt said body when said supporting means are released.
  • a suction cleaner the combination of a wheeled carriage, a body supported upon said carriage for limited tilting movement about a.
  • a suction cleaner the combination of a carriage having wheels mounted at the front and rear ends thereof, a body mounted on'said carriage for limited tilting movement about a horizontal knife-edge bearing located rearwardly of the center of mass of said body, a bolt depending from the underside of said body and through an aperture in said carriage at a point offset a short distance rearwardly of the line of said knife-edge bearing, and a compression spring carried at the lower end of said boltand bearing against the underside of said carriage, said spring acting to anchor said body upon said carriage and to counterbalance a part of the weight tendingto tilt the body forwardly and downwardly.
  • a suction cleaner the combination of a carriage having wheels mounted at the front and rear ends thereof, a body supported upon said carriage for limited tilting movement about a transverse knife-edge bearing located rearwardly of the center of mass of said body, a bolt deand passing through an aperture in said. carriage at a point oifset a predetermined short distance rearwardly of the line of said knife-edgebearing, a compression spring carried at the lower end of said bolt and bearing against the underside of said carriage, releasable means operative to hold said body against forward and downward tilting movement, said spring acting to counterbalance a part of the weightcausing said body to be tilted in a downward direction when said holding means is released.
  • a suction cleaner he combination of a carriage having wheels mounted at the front and rear ends thereof, a body supported upon said carriage for limited tilting movement about a passing through an aperture in said carriage at a point oflset a predetermined short distance rearwardly of the line of contact of said knifeedge bearing, a co pression spr ing carried at the lower end of sai underside of said carriage, foot actuated releasable means acting normally to hold the forwardend of said body against tilting in a downwardly bolt and bearing against the direction, said spring acting to counterbalance a- 3 part of the weight causing said body to tilt when said holding means is momentarily'released.

Landscapes

  • Nozzles For Electric Vacuum Cleaners (AREA)
US126653A 1937-02-19 1937-02-19 Suction cleaner Expired - Lifetime US2218184A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR835216D FR835216A (fr) 1937-02-19 1937-02-18 Perfectionnements aux appareils de nettoyage par aspiration
US126653A US2218184A (en) 1937-02-19 1937-02-19 Suction cleaner
GB2147/38A GB494287A (en) 1937-02-19 1938-01-22 Improvements in or relating to suction cleaners
DEH154716D DE679788C (de) 1937-02-19 1938-02-11 Staubsauger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US126653A US2218184A (en) 1937-02-19 1937-02-19 Suction cleaner

Publications (1)

Publication Number Publication Date
US2218184A true US2218184A (en) 1940-10-15

Family

ID=22426002

Family Applications (1)

Application Number Title Priority Date Filing Date
US126653A Expired - Lifetime US2218184A (en) 1937-02-19 1937-02-19 Suction cleaner

Country Status (4)

Country Link
US (1) US2218184A (de)
DE (1) DE679788C (de)
FR (1) FR835216A (de)
GB (1) GB494287A (de)

Also Published As

Publication number Publication date
FR835216A (fr) 1938-12-15
GB494287A (en) 1938-10-24
DE679788C (de) 1939-08-16

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