EP0000629B1 - Dispositif de nettoyage de tapis - Google Patents

Dispositif de nettoyage de tapis Download PDF

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Publication number
EP0000629B1
EP0000629B1 EP78300134A EP78300134A EP0000629B1 EP 0000629 B1 EP0000629 B1 EP 0000629B1 EP 78300134 A EP78300134 A EP 78300134A EP 78300134 A EP78300134 A EP 78300134A EP 0000629 B1 EP0000629 B1 EP 0000629B1
Authority
EP
European Patent Office
Prior art keywords
brush
carpet
powder
cleaning device
carpet cleaning
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
Application number
EP78300134A
Other languages
German (de)
English (en)
Other versions
EP0000629A1 (fr
Inventor
Robert Saul Brown
Robert C. Fay
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.)
Milliken Research Corp
Original Assignee
Milliken Research 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 claimed from US05/821,188 external-priority patent/US4137590A/en
Priority claimed from US05/821,172 external-priority patent/US4183112A/en
Application filed by Milliken Research Corp filed Critical Milliken Research Corp
Publication of EP0000629A1 publication Critical patent/EP0000629A1/fr
Application granted granted Critical
Publication of EP0000629B1 publication Critical patent/EP0000629B1/fr
Expired 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4038—Disk shaped surface treating tools
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/292—Floor-scrubbing machines characterised by means for taking-up dirty liquid having rotary tools
    • A47L11/293—Floor-scrubbing machines characterised by means for taking-up dirty liquid having rotary tools the tools being disc brushes
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4094—Accessories to be used in combination with conventional vacuum-cleaning devices

Definitions

  • This invention relates to a carpet cleaning device according to the introductory part of claim 1.
  • Carpet cleaning devices with rotating and orbiting brushes are generally known (e.g. GB-PS 945 037).
  • the presser bar presses the powder into the carpet before the powder is acted upon by the brush, the tendency of the brush to redistribute the powder is reduced.
  • a housing 20 is pivotably mounted on a frame 22.
  • a handle 52 is connected to the frame 22 for pushing the machine across the carpet to be scrubbed.
  • a vacuum cleaner 54 is mounted on handle 52 and is connected to the housing 20 by a flexible hose 56.
  • a powder dispenser of the type described in U.S. Patent Specification 4,019,662 is mounted on the frame 22 and includes a powder storage bin 36 supported by the frame 22 above the housing 20 near the front of the machine, a rotating, reticulated foam cylinder 38 rotatably mounted within the powder storage bin 36 which presses against a foraminous discharge area 40 and a motor 42 for rotating the cylinder 38.
  • a door 44 is provided for closing the foraminous discharge area 40 and serves as a ramp (when it is open as in broken lines in Fig. 5) to aid depositing powder in front of the machine as it moves over the carpet.
  • Wheels 23 are rotatably mounted at the lower rear of the frame 22 and partially support the weight of the machine in operation.
  • the axis about which both wheels 23 rotate is parallel to the axis about which the housing 20 is free to pivot. This arrangement prevents the housing from canting and ensures that both sides of the machine will be at the same height, thus promoting easier handling of the machine and uniform cleaning across the width of the path covered by the machine.
  • Wheel brushes 62 are mounted on the frame 22 adjacent to the wheels 23 to prevent accumulation of powder on the wheels 23.
  • a motor 24 having an output shaft 26 is mounted vertically within the housing 22.
  • An eccentric support plate 27 is keyed on the shaft 26 by a key 29 and also engages the inner race of a bearing 28.
  • counterweights 25 may be mounted on the eccentric support plate 27 to compensate for the unbalanced weight of the scrubber brush 32.
  • the outer race of bearing 28 is fixed to a scrubber support member 30 upon which the scrubber brush 32 is mounted.
  • the scrubber brush 32 has tufts 31 of bristles 34 which engage the carpet to be scrubbed and which together with wheels 23 support the weight of the machine.
  • An auxiliary motor 42 (Fig. 4) rotates the reticulated foam cylinder 38 within the powder storage bin 36 to cause powder to be dispensed through the foraminous discharge area 40.
  • a bin cover 46 for the top of the storage bin and both the door 44 and the cover 46 provide moisture tight seals which retard the drying out of the powder.
  • pressing means can include pressing members such as riders brushes 37a as shown in Figures 6 and 7 or flexible wipers 37b as shown in Figures 8 and 9.
  • tufts 31 of bristles 34 located in protruding areas 33 at the outer periphery of the scrubber brush 32 will function to press the powdered cleaning composition into the pile of the carpet and to minimize redistribution of powdered cleaning composition by the scrubber brush 32.
  • the region of the lower face of the preferred brush 32 to which the bristles 34 are applied has several protruding areas 33 around its periphery. Following the periphery of the bristled area from each protrusion 33 in the direction of rotation indicated by the arrow, it can be seen that the distance from the centre of the brush to the outer edge of the bristled area increases steadily until the next protrusion 33 is encountered.
  • the bristles are slanted at an angle of about 25° from the vertical but as can be seen in Figure 2 are substantially perpendicular to the radial lines extending from the centre of the brush. The slanted bristles trail as the brush rotates.
  • the tufts 31 in protruding area 33 will encounter particles which have been laid down on the carpet. Since the velocity of the tufts 31 in each of protruding areas 33 which first encounter the particles of cleaning powder is approximately perpendicular to the edge of each bristled area, the tendency of the tufts 31 to ride up over the particles and to press them down into the pile of the carpet is enhanced. In contrast when a circular brush is used, the velocity of the tufts which first encounter the particles of cleaning powder is substantially parallel to the edge of the bristled area. It is thought that this increases the tendency of the bristles to redistribute the powder.
  • the bristles 34 are inclined for two reasons. First, they facilitate the rotation of the scrubber brush 32 and the proper inclination makes it easier for the protruding areas 33 to ride up over the powder and work them into the carpet. If the motor 24 drives the shaft 26 in the clockwise direction when viewed from the top, the bristles 34 should lean to the left when viewed from the front of the machine. However, if the opposite inclination is used, satisfactory results can be obtained but the device will be more difficult to control.
  • Figure 11 shows the shape of the bristled region on a brush having a gear shaped bristled region.
  • Figure 14 shows the shape of the bristled region on a brush having a cross shaped bristled region.
  • Figure 15 shows the shape of the bristled region on a brush having a fan blade shaped bristled region, i.e. radiating whorls of bristles.
  • Figure 16 shows the shape of the bristled region on a brush having a saw blade shaped bristled region.
  • Figure 17 shows the shape of the bristled region on a brush having an oblong shaped bristled region.
  • Figure 16 differs from Figure 11 1 principally in that there are five protrusions in Figure 11 and six protrusions in Figure 16.
  • the shapes shown in Figures 11 and 16 are preferred because of the presence of a plurality of unobstructed tufts 35 located along a radial line at the edges of protrusions 33.
  • Each unobstructed tuft is so located that an imaginary tangential line segment can be constructed which passes through the centre of the tuft and meets the following conditions: the line segment is perpendicular to a radial line drawn through the centre of the scrubber brush to the centre of the tuft; it extends in the direction of rotation of the scrubber brush; it lies within the face of the scrubber brush and it does not pass through any portion of any other tuft or between any two other tufts which are adjacent to each other.
  • the brushes shown in Figures 11 and 16 have a plurality of unobstructed bristles lying on a radial line, they are the most preferred embodiment of the invention, but other embodiments in which there are a plurality of unobstructed bristles which do not lie on the same radial line are acceptable. It is thus possible to reduce the tendency of the brush to redistribute powder.
  • a press bar 48 is pivotably mounted on frame 22 by means of rods 50. As best shown in Figures 4, 5 and 10, each rod 50 terminates in a flattened portion 51 and tabs 49 are attached to each end of press bar 48. Each flattened portion 51 is pivotably connected to the corresponding tab portion 49 and each rod 50 is pivotably connected to the frame 22 so that the press bar 48 is free to follow the contour of the carpet.
  • the storage bin door 44 is of sufficient length to ensure that the powder will be deposited in front of the press bar 48. As the scrubber is advanced over the carpet, powder will be dispensed in front of press bar 48 which minimises redistribution of powder by pressing the powder into the pile of the carpet. The press bar 48 thus tends to immobilise the powder.
  • shaft 26 Upon energisation of the motor 24, shaft 26 is rotated. Since the shaft 26 is eccentric with respect to the bearing 28, the centre of the scrubber brush 32 is driven in a circle. Since the scrubber brush 32 is free to rotate about its centre, it does not rotate at the same speed as shaft 26 but rotates more slowly.
  • the motor 24 can drive the shaft 26 at 3400 rpm, whereas the scrubber brush 32 will rotate at between 50 and 100 rpm, depending upon the type of bristles used and on the type of carpet being scrubbed.
  • the particles of cleaning powder dropping from the door 44 are pushed into the pile of the rug by the press bar 48 as the machine is translated over the carpet.
  • the tufts 31 in the protruding areas 33 of the scrubber brush 32 encounter the particles of cleaning powder before the other tufts on scrubber bar 32 and aid in pressing the powder down into the carpet.
  • the remaining tufts 31 scrub the powder into the carpet.
  • the vacuum cleaner 54 prevents excessive dust from escaping from under the housing 20.

Landscapes

  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Brushes (AREA)

Claims (10)

1. Dispositif de nettoyage de moquettes et de tapis qui introduit une poudre de nettoyage dans les poils d'une moquette par frottement à l'aide d'une brosse qui tourne et a un mouvement orbital, lorsque le dispositif est poussé au-dessus de la moquette sur un châssis à roues, caractérisé par un récepient (36) de poudre destiné à laisser tomber de la poudre de nettoyage sur la région de la moquette qui se trouve en avant de la brosse (31), et une barre transversale (48) de pression disposée entre cette région et la brosse afin qu'elle enfonce la poudre dans la moquette avant que la poudre soit travaillée par la brosse, la barre (48) de pression étant libre de se déplacer par rapport au châssis (22) afin qu'elle suive le profil de la moquette.
2. Dispositif de nettoyage de moquettes et de tapis selon la revendication 1, caractérisé en ce qu'un élément supplémentarie de pression (37a, 37b) est fixé à la brosse et dépasse radialement de celle-ci afin qu'il enfonce aussi la poudre dans la moquette en avant de la brosse, lorsque l'éle'ment supplémentaire de pression (37a, 37b) balaie la moquette en avant de la brosse.
3. Dispositif de nettoyage de moquettes et de tapis selon la revendication 1, caractérisé en ce que la brosse (31) a une partie (33) qui dépasse radialement et qui balaie la moquette en avant de la partie principale de la brosse afin qu'elle enfonce aussi la poudre dans la moquette.
4. Dispositif de nettoyage de moquettes et de tapis selon la revendication 3, caractérisé en ce que la partie (33) en saillie de la brosse est délimitée, du côté antérieur dans le sans de rotation de al brosse, par une droite radiale.
5. Dispositif de nettoyage de moquettes et de tapis selon l'une des revendications 3 et 4, caractérisé en ce que la périphérie externe de la brosse a une forme en dents de scie (figures 11, 16).
6. Dispositif de nettoyage de moquettes et de tapis selon la revendication 3, caractérisé en ce que la périphérie externe de la brosse a la forme d'un pignon d'engrenage (figure 13).
7. Dispositif de nettoyage de moquettes et de tapis selon la revendication 3, caractérisé en ce que la périphérie externe de la brosse a une configuration en croix (figure 14).
8. Dispositif de nettoyage de moquettes et de tapis selon la revendication 3, caractérisé en ce que la périphérie externe de la brosse est formée par des volutes s'écartant radialement (figure 15).
9. Dispositif de nettoyage de moquettes et de tapis selon la revendication 3, caractérisé en ce que la périphérie externe de la brosse a une forme générale oblongue (figure 17).
10. Dispositif de nettoyage de moquettes et de tapis selon l'une quelconque des revendication précédentes, caractérisé en ce que la brosse (31) a des soies (34) inclinées de mainère qu'elles soient tournées vers l'arrière lorsque la brosse tourne.
EP78300134A 1977-08-02 1978-07-10 Dispositif de nettoyage de tapis Expired EP0000629B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US05/821,188 US4137590A (en) 1977-08-02 1977-08-02 Device for scrubbing carpet
US821188 1977-08-02
US821172 1977-08-02
US05/821,172 US4183112A (en) 1977-08-02 1977-08-02 Device for scrubbing carpet

Publications (2)

Publication Number Publication Date
EP0000629A1 EP0000629A1 (fr) 1979-02-07
EP0000629B1 true EP0000629B1 (fr) 1981-11-11

Family

ID=27124517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78300134A Expired EP0000629B1 (fr) 1977-08-02 1978-07-10 Dispositif de nettoyage de tapis

Country Status (9)

Country Link
EP (1) EP0000629B1 (fr)
JP (1) JPS5441560A (fr)
AU (1) AU3826678A (fr)
CA (1) CA1121116A (fr)
DE (1) DE2861310D1 (fr)
DK (1) DK340278A (fr)
MX (1) MX146011A (fr)
NO (1) NO782579L (fr)
NZ (1) NZ188020A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0740356Y2 (ja) * 1990-02-22 1995-09-20 シャープ株式会社 洗浄機
JPH0740357Y2 (ja) * 1990-04-28 1995-09-20 シャープ株式会社 ローラー付回転ブラシ
DE9210673U1 (de) * 1992-08-07 1992-10-15 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Dosier- und Austragvorrichtung für Trockenreinigungspulver an Haushaltsreinigungsgeräten
US5754305A (en) * 1996-12-03 1998-05-19 Eastman Kodak Company Method and apparatus for correcting light non-uniformity in an LCD photographic printer
DE102009022487B3 (de) * 2009-05-19 2011-01-05 Süddeutsche Bürsten- und Kunststoffabrik Eugen Gutmann GmbH Bürstenscheibe für eine Bodenreinigungsmaschine
JP6379334B2 (ja) * 2015-04-07 2018-08-29 内田　和宏 回転式洗浄機用ブラシの製造方法
DE102017117523B3 (de) * 2017-08-02 2018-12-20 Vorwerk & Co. Interholding Gmbh Reinigungsgerät mit motorisch angetriebener Schwingplatte sowie Verfahren zum Betrieb eines Reinigungsgerätes

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332090A (fr) * 1963-12-16
US2517915A (en) * 1947-05-01 1950-08-08 Atlas Floor Surfacing Machiner Rotary brush
GB734834A (en) * 1951-03-30 1955-08-10 S R Cowlard Ltd Improvements in floor cleaning machines
BE534663A (fr) * 1954-01-05
US2819479A (en) * 1954-02-09 1958-01-14 Hoover Co Scrubbing machine with shield and support attachment therefor
US2842788A (en) * 1956-01-27 1958-07-15 Racine Ind Plant Inc Carpet scrubbing machine
US2999258A (en) * 1958-10-24 1961-09-12 Berberian Edward Surface-cleaning and rug-shampooing machines
US3019465A (en) * 1959-05-28 1962-02-06 Gen Electric Rug scrubbing tool attachment particularly for floor polishers
US3011191A (en) * 1959-12-16 1961-12-05 Hulsh Sheldon David Rug cleaning apparatus
US3120016A (en) * 1960-12-23 1964-02-04 Knapp Rug shampoo machine
GB982306A (en) * 1961-11-07 1965-02-03 Mauz & Pfeiffer A machine for polishing or cleaning floors
DE1403668A1 (de) * 1961-11-08 1968-10-24 Mauz & Pfeiffer Zur Reinigung von Teppichen u.dgl. verwendbare Bodenpflegemaschine
US3290713A (en) * 1965-04-07 1966-12-13 Multi Clean Products Inc Floor scrubbing brush
US3398422A (en) * 1968-01-25 1968-08-27 Multi Clean Products Inc Rotary brush for carpet scrubbing machine
US3518709A (en) * 1968-03-18 1970-07-07 Minnesota Mining & Mfg Floor treating machine head assembly

Also Published As

Publication number Publication date
NZ188020A (en) 1982-11-23
DK340278A (da) 1979-02-03
NO782579L (no) 1979-02-05
AU3826678A (en) 1980-01-31
JPS5441560A (en) 1979-04-02
MX146011A (es) 1982-04-29
DE2861310D1 (en) 1982-01-14
CA1121116A (fr) 1982-04-06
EP0000629A1 (fr) 1979-02-07

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