US1918360A - Suction cleaner - Google Patents

Suction cleaner Download PDF

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Publication number
US1918360A
US1918360A US551690A US55169031A US1918360A US 1918360 A US1918360 A US 1918360A US 551690 A US551690 A US 551690A US 55169031 A US55169031 A US 55169031A US 1918360 A US1918360 A US 1918360A
Authority
US
United States
Prior art keywords
brush
shoulder
seat
agitator
suction cleaner
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
US551690A
Other languages
English (en)
Inventor
Harry B White
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 NL32972D priority Critical patent/NL32972C/xx
Priority to BE388551D priority patent/BE388551A/xx
Application filed by Hoover Co filed Critical Hoover Co
Priority to US551690A priority patent/US1918360A/en
Priority to DEH129157D priority patent/DE573460C/de
Priority to GB12983/32A priority patent/GB381121A/en
Priority to FR737267D priority patent/FR737267A/fr
Application granted granted Critical
Publication of US1918360A publication Critical patent/US1918360A/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
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls
    • 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
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0494—Height adjustment of dust-loosening tools

Definitions

  • justable brush construction in which the brush is adapted to be seated in a plurality of Ways to provide the correct bristle projection beyond the periphery of the agitator.
  • the brush bristle life is a variable dependent upon the type and quality of the bristle used in the brush and upon the kind of covering upon which the agitator is used.
  • the rigid beating element and the brush element in the agitator extend tov substantially the same distance from the axis of rotation of the agitator and, as the rigid beater element, being made of hard, smooth metal, is substantially wearproof, it is apparent that, as the brush bristles become worn and their length decreases, in time they will cease to be a factor in the cleaning of the surface covering and that the covering will be contacted only by the rigid beating elements;the brush elements revolving in a circle of lesser diameter and failing entirely to contact the surface covering undergoing cleaning.
  • the brush element itself, and the brush seat in the agitator body proper in which it is received are so formed and are designed to so cooperate that the effective bristle length, that is the height which the bristles extend above the surface 1931.
  • a further object is to provide a new and improved rotary agitator ⁇ for suction cleaners.
  • a still further object is to provide a rotaryy suction cl'eaner.-, ⁇ agitator comprising an adjustable brush.
  • a suction 'cleaner rotary agitator comprising a brush which'is adapted to be positioned in a .plurality of positions relative to the agitator to effect the adjustment of the bristle height above that body.
  • Fig. 1 is a partial side view of a suction cleaner embodyingv with the casing of the cleaner broken away and showing the agitator in question there- 1n;
  • Fig. 2 is a partial side view of an agitator constructed in accordance with the present invention with certain parts broken away and with port-ions of the brush seat, with the brush positioned therein, shown in section;
  • Fig. 3 is a view similar to Fig. 2 but showor worn position in ing the brush in its second the agitator body;
  • t v F Fig. 4 is the section upon the line 4 4 of Fig. 5 is a sect-ion upon the line 5 5 of Fig. 2.
  • a suction cleaner which is partially shown in Fig. land which comprises a nozzle 1, a fan chamber 2, to which the nozzle is interiorly connected, there being a rotatable fan 3 in the fan chamber 2 which is mounted upon the extended lower end of the motor shaft 4.
  • shaft 4 by means-of a belt 5, comprises a hollow body 7, which is substantially cylindrica l throughout its major portions and which is provided with longitudinally extending reentrant portions or channels 8,8 upon each side of the pulley 9 which is itself positioned substantially at the longitudinal center of. the agitator.
  • The. body 7 of the agitator is rotatably mounted upon a stationary supporting shaft 10 which extends longitudinally therethrough and which carries a sta-- tionary thread guard member 11 at each end which overlies the end of the body 7 and which serves to protect that body from thread, hair, et cetera, collecting' around its end and around the bearing which is positioned between the shaft and the body.
  • beater bars Upon the surface of body 7, formed separately or integrally therewith, are the longitudinally extending beater bars indicated by the reference characters 12.12. These beater bars extend but a relatively small height above the normal surface of body 7 and lie upon that surface in curves which may be helices having common end points.
  • the opposite ends thereof are provided with openings 13 and 14, at the outer
  • the upper limit of the opening 13 is defined by a transver'sely extending strip or shoulder 15 the vlower edge of which is just the height of the strip 15 below the downwardly facing shoulder 16 which defines the upper limit of the opening 14 at the pulley end of each seat 8.
  • the second opening which is indicated by the reference character 17 and which-has its upper limit defined by the transversely extending shoulder 18 which is spaced vertically above the lower face of shoulder 15 a distance which is substantially equal to twice the width, that is height, of that member.
  • each brush seat 8 is positioned an elongated brush comprising a rigid back 19 in which are seated tufts of bristles indicated generally by the reference character 20 and which are arranged substantially from end to end of the back.
  • Each end of brush back 19 is provided with a reduced portion or shoulder which extends outwardly beyond the bristles.
  • the reduced end or shoulder 21 shown positioned at the pulley end of the brush seat in Fig. 2.
  • This reduced end or shoulder is positioned higher upon the brush back than the reduced end or shoulder 22 at the opposite end, this difference in height in the present embodiment being substantially equal to the thickness of the transversely extending shoulder 15 as viewed in Fig. 2.
  • a bow y spring -23 which is securely held in place relative to the bottom of the seat by suitable securingr means indicated generally by the reference character 24.
  • the spring is so aeiaseo constructed that with the brush within the seat it functions, through contacting the underside of that member, to urge it up- 'wardly and radially outward from its seat in the agitator, body.
  • Fig. 2 in particular the brush shown positioned in its seat in the new brush position.
  • the new brush position is meant that position of the brush relative to the agitator body in which the brush is seated at its lowest position in the body.
  • This positioning of the brush is permissible for, when new, the brush bristles have their greatest length and it is possible to lower the brush to the'lowest position possible which will still give a bristle projection beyond the agitator body surface which is substantially equal to the 'height of the beater bars 12, 12 above that surface.
  • the high shoulder 21 extends through the opening 14 and underlies the seat shoulder 16.
  • the shoulder 22 at the oppositeendof the brush back 19 is lower than the upper surface'of-shoulder 21 by the exact width of the shoulder of 15, and as shoulder 22 underlies shoulder 15 it is-apparent that the brush will lie parallel to the axis of the agitator, and one end will not be higher than the other.
  • the spring 23 exerts an equal force upwardly upon the brush back at its two points of contact therewith and maintains the contacting shoulders in their correct relationship, the spring be ingaided in its function, when the agitator is in rotation, by the centrifugal force exerted by the brush itself.
  • Fig. 3 the brush is shown in its worn brush position, or high position.
  • the high shoulder 21 on the brush back is extended through the opening 17 and underlies the shoulder 18, the high shoulder 21 on the brush back being made of such height that it easily extends through that opening.
  • the low shoulder 22 underlies the shoulder 16 on the agitator, the brush being, therefore, in a reverse position from that described in connection with Fig. 2.
  • shoulder 16 is higher than the lower face of shoulder 15, by an amount substantially equal to the thickness of that member, that the brush is higher in the seat, in its reversed condition, by-substantially that amount.
  • the spring 23 urges the brush radially from the agitator and maintains the shoulders in their contacting relationship.
  • said seat having openings at its ends adapted' to receive the ends of a brush back, each of -said openings having its upper limit defined by a single shoulder positioned below the surface of said body a distance unequal to that of any other shoulder, there being more than one shoulder at one end of said seat, a brush comprising a back adapted to be p0- sitioned in said seat and to contact a pair of said shoulders, one at each end of'said seat, charawtcrized by the fact that upon thereversal end for end of said brush in said seat with said back in contact with a new pair o'f shoulders, said brush is positioned at a different height in said seat.
  • a body having an elongated channel forming a brush seat, said channel-formed with an opening at one end and a pair of vertically spaced open- -HARRY B.- WHITE.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
US551690A 1931-07-18 1931-07-18 Suction cleaner Expired - Lifetime US1918360A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL32972D NL32972C (enrdf_load_stackoverflow) 1931-07-18
BE388551D BE388551A (enrdf_load_stackoverflow) 1931-07-18
US551690A US1918360A (en) 1931-07-18 1931-07-18 Suction cleaner
DEH129157D DE573460C (de) 1931-07-18 1931-10-30 Buerst- und Klopfwalze
GB12983/32A GB381121A (en) 1931-07-18 1932-05-05 Improvements in or relating to suction cleaners
FR737267D FR737267A (fr) 1931-07-18 1932-05-18 Perfectionnements aux aspirateurs de poussière

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US551690A US1918360A (en) 1931-07-18 1931-07-18 Suction cleaner

Publications (1)

Publication Number Publication Date
US1918360A true US1918360A (en) 1933-07-18

Family

ID=24202284

Family Applications (1)

Application Number Title Priority Date Filing Date
US551690A Expired - Lifetime US1918360A (en) 1931-07-18 1931-07-18 Suction cleaner

Country Status (6)

Country Link
US (1) US1918360A (enrdf_load_stackoverflow)
BE (1) BE388551A (enrdf_load_stackoverflow)
DE (1) DE573460C (enrdf_load_stackoverflow)
FR (1) FR737267A (enrdf_load_stackoverflow)
GB (1) GB381121A (enrdf_load_stackoverflow)
NL (1) NL32972C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10426306B2 (en) 2016-01-22 2019-10-01 Dyson Technology Limited Brushbar, cleaner head and method of manufacture of a brushbar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10426306B2 (en) 2016-01-22 2019-10-01 Dyson Technology Limited Brushbar, cleaner head and method of manufacture of a brushbar

Also Published As

Publication number Publication date
FR737267A (fr) 1932-12-09
BE388551A (enrdf_load_stackoverflow)
NL32972C (enrdf_load_stackoverflow)
GB381121A (en) 1932-09-29
DE573460C (de) 1933-04-01

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