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EP1534112B1 - Outil de nettoyage menager a resistance aux fuites amelioree - Google Patents

Outil de nettoyage menager a resistance aux fuites amelioree Download PDF

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Publication number
EP1534112B1
EP1534112B1 EP03792240A EP03792240A EP1534112B1 EP 1534112 B1 EP1534112 B1 EP 1534112B1 EP 03792240 A EP03792240 A EP 03792240A EP 03792240 A EP03792240 A EP 03792240A EP 1534112 B1 EP1534112 B1 EP 1534112B1
Authority
EP
European Patent Office
Prior art keywords
cleaning
cleaning head
fluid
household
head
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
EP03792240A
Other languages
German (de)
English (en)
Other versions
EP1534112A1 (fr
Inventor
Peter James Lever Faberge Italia SpA NEWBOULD
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.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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 Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to EP03792240A priority Critical patent/EP1534112B1/fr
Publication of EP1534112A1 publication Critical patent/EP1534112A1/fr
Application granted granted Critical
Publication of EP1534112B1 publication Critical patent/EP1534112B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/0072—Details
    • A46B11/0079—Arrangements for preventing undesired leakage or dispensing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K11/00—Closets without flushing; Urinals without flushing; Chamber pots; Chairs with toilet conveniences or specially adapted for use with toilets
    • A47K11/10—Hand tools for cleaning the toilet bowl, seat or cover, e.g. toilet brushes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/0013—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs dispensing by gravity or by shaking
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/30—Brushes for cleaning or polishing
    • A46B2200/304—Lavatory brush, i.e. brushes for cleaning toilets

Definitions

  • This invention relates to a household cleaning tool which incorporates a reservoir for containing household cleaning fluid and which has improved resistance to accidental leakage or dripping of the contained household cleaning fluid when the tool is not in use.
  • the corrosive or irritant nature of some cleaning products means that is especially important to avoid accidental leakage of cleaning liquid from the dispensing end of the cleaning tool when it is not in use. Otherwise there is a risk that the cleaning liquid may come into contact with skin, clothing or other surfaces which are not intended to be treated.
  • US 4,875,791 illustrates a liquid dispensing brush.
  • this design contains no flow control mechanism, it requires that the brush head be kept higher than the reservoir while not in use, or else the liquid flows unobstructed to the brush head. This makes the design impractical for most bathroom cleaning uses since most people store their toilet bowl and other bathroom brushes standing or hanging with the brush head below the handle.
  • WO01/65969 discloses a brush with an integrated cleaning liquid reservoir, in which a piston pump is used to forward cleaning liquid from the reservoir to a discharge opening in the brush head.
  • the pump forms the mechanical connection between the brush handle and the brush head, and the dispensing of cleaning liquid is effected by movement between the brush handle and the brush head in the axial direction of the brush handle.
  • the cleaning liquid travels from within the chamber of the pump towards a single discharge opening via a passage which extends axially through the core of the brush head.
  • a spring assisted ball check valve into the pump, or downstream of the pump, which serves to block the passage when the brush is not in use.
  • a problem with the above arrangement is that the constraints on the location of the pump may make sizing and manufacture of the pump and its components difficult (for example, if the area between the handle and the head of the brush is small or narrow due to the design of the brush). Also the incorporation of spring assisted ball check valves represents an extra expense.
  • the invention provides a replaceable cleaning head for use with a cleaning tool and a household cleaning tool which comprises an elongate housing incorporating a reservoir for household cleaning fluid, the housing having at one end said cleaning head, the cleaning head forming a hollow chamber which is in fluid communication with the reservoir and which is provided with at least one outlet for the dispensation of the household cleaning fluid, characterised in that the hollow chamber formed by the cleaning head contains a space-filler insert plug.
  • the space-filler insert plug serves to minimise the volume of fluid accommodating space inside the hollow chamber of the cleaning head and therefore reduces dripping and leakage by controlling the volume and distribution of household cleaning fluid in the cleaning head when the tool is not in use.
  • the cleaning head of the invention is also much easier to manufacture by injection moulding than a cleaning head which is in the form of a solid core with a single liquid passage, as is described in WO01/65969.
  • a solid core with single passage would be very difficult to injection mould because of the thickness of the plastic involved, which would be slow to cool and prone to shrinkage during cooling.
  • the injection moulding process requires quick cooling of the molten plastic, because otherwise it becomes necessary to shut down the injection moulding machinery periodically to permit cooling, which is inefficient and may make the process economically infeasible on a large scale.
  • the cleaning head of the invention can be made with relatively thin plastic walls.
  • a further advantage of the cleaning head of the invention is that it can be provided with a number of outlets for the dispensation of the household cleaning fluid, instead of a single outlet. This enables a more uniform and complete distribution of household cleaning fluid onto the exterior surfaces of the cleaning head when the tool is in use, and therefore more efficient cleaning, especially of areas such as toilet bowls where thorough cleaning of the entire surface is important.
  • a cleaning head which is in the form of a solid core with a single outlet as is described in WO01/65969, it would be very difficult to provide further outlets because such outlets would have to be drilled with precision through the entire wall thickness of the solid core.
  • the space-filler insert plug controls dripping and leakage by minimising the volume of space inside the hollow chamber of the cleaning head which is available to accommodate fluid, and therefore controlling the volume and distribution of household cleaning fluid in the cleaning head when the tool is not in use.
  • the space-filler insert plug is of suitable dimensions so that it forms a sufficiently close fit with the interior surface of the hollow chamber of the cleaning head in order to minimise the volume of fluid accommodating space as far as possible without actually preventing the flow of household cleaning fluid when the cleaning tool is actuated into a dispensing position.
  • Actuation of the cleaning tool is typically via a piston pump, squeeze chamber or the like which serves to apply an overpressure to the household cleaning fluid, thereby forwarding it from the hollow chamber of the cleaning head to the outlet for its dispensation to the exterior surfaces of the cleaning head.
  • the space-filler insert plug is provided with projections on its surface, which projections make a flush fit with the interior surface of the hollow chamber of the cleaning head. This arrangement therefore leaves areas between the individual projections which can accommodate the flow of a thin layer of household cleaning fluid.
  • the projections are suitably in the form of studs, ribs, nodules or the like.
  • the hollow chamber of the cleaning head and the space-filler insert plug are both of a generally cylindrical shape, and the plug fits concentrically inside the chamber.
  • the plug is provided with longitudinal rows of studs, which studs make a flush fit with the interior surface of the chamber of the cleaning head. Since the studs only project to a small extent radially outward in relation to the surface of the space-filler insert plug, the fluid accommodating space can be minimised without preventing household cleaning fluid flow.
  • the space-filler insert plug may be solid or hollow and may suitably be made of plastic, foam or any other material which is easily formed and resistant to attack from the chemicals in household cleaning fluids. Preferred are rigid plastics materials.
  • the cleaning head of the household cleaning tool according to the invention is typically provided on its exterior surface with a suitable scrubbing means.
  • the scrubbing means constitutes an array of bristles or synthetic bristles located on the exterior surface of the cleaning head.
  • the bristles may be fastened to the cleaning head according to techniques known in the art such as fusing-on or staple-setting.
  • the bristles are arranged in tufts, and fluid continuous channels lead from the interior of the cleaning head to the base of each of the tufts of bristles on the cleaning head. These channels therefore form outlets for the dispensation of the household cleaning fluid.
  • This arrangement provides an additional hygiene benefit since it ensures that the cleaning fluid comes into contact with the base of each of the tufts of bristles, enabling uniform coating of the entire bristle array.
  • the uniform coating of the bristle array ensures as a consequence that the household cleaning fluid is applied more efficiently and thoroughly to the surface to be treated. Also, it enables the tool to stay hygienically clean and fresh between uses, due to the residual hygiene effect of the coating.
  • the orientation of the bristle tufts is also important for improved resistance to leakage and dripping. It is preferred to locate bristle tufts on the sidewalls of the cleaning head as well as the tip of the cleaning head, because the former are less subject to leakage when not in use due to gravity-influenced drainage. A distribution of bristle tufts over all surfaces of the cleaning head of bristle tufts is also more efficient for cleaning hard-to-reach areas.
  • the bristle tufts into the wall of the cleaning head so that they serve to plug the fluid channel which extends from the interior of the cleaning head through the wall of the cleaning head to the bristle. This improves resistance to leakage and dripping by reducing the space inside the cleaning head which is available to be accommodated by fluid.
  • Thixotropic household cleaning fluids are preferred for use in conjunction with the tool according to the invention, since these may be pumped without running or dripping after pumping, which provides further anti-leak protection.
  • a piston pump forms the mechanical connection between the reservoir for household cleaning fluid and the cleaning head, and the dispensing of household cleaning fluid is effected by movement between the reservoir and the cleaning head in the axial direction of the reservoir.
  • the reservoir for household cleaning fluid is in the form of a cartridge which is reversibly interengageable with the housing so that the cartridge can simply be removed when empty of household cleaning fluid and replaced with a full one which is sold as a refill.
  • the cleaning head may also be a separate component which is releasably secured to the housing, e.g. by means of a screw or snap-fit connection, so that it is replaceable by a new cleaning head in the event that the scrubbing means on its surface wears out.
  • a household cleaning tool (1) is seated in a storage pot (2), and has an elongate housing (3) which is in the form of a rigid sleeve furnished with an inclined handle (4) and a cleaning head (5).
  • a springloaded piston pump (6) is located in the base of the main body of the housing (3).
  • the cleaning head (5) consists of a generally cylindrical hollow chamber (7), which is contained by a wall member (8) having an interior surface (8a) and an exterior surface (8b).
  • a plurality of fluid continuous channels four of which are shown representatively as (9), lead from the interior surface (8a) to the exterior surface (8b) of the cleaning head (5), which exterior surface (8b) is provided with an array of bristles arranged in tufts.
  • the bristle tufts are distributed uniformly around the sides and tip of the cleaning head, and are set into the wall member (8) of cleaning head (5) so that they plug the fluid channels (9). Four of these bristle tufts are shown representatively as (10).
  • a space-filling insert plug (11) fits concentrically inside the chamber (7).
  • the plug (11) is provided with four equally spaced longitudinal rows of studs (12) which form a flush fit against the interior surface (8a) of the chamber (7) of the cleaning head (5). Since the studs (12) only project to a small extent radially outward in relation to the surface of the space-filler insert plug (11) the fluid accommodating space can be minimised without preventing household cleaning fluid flow.
  • a rigid elongate axisymmetric cartridge (13) containing household cleaning fluid is located in the sleeve of the housing (3) and is connected with the housing (3) by means of a bayonet-type coupling between recesses (14) which are provided on the neck of the cartridge (13) with corresponding projections (15) which are provided on an annular connection socket (16) which is located at the base of the sleeve of the housing (3) above the pump (6).
  • a hollow needle (17) is provided between the pump (6) and the cartridge (13), so that when the cartridge (13) is screwed into place, the needle (17) penetrates a flexible silicone sealing septum (18), which seals the neck of the cartridge (13). This allows cleaning fluid to enter the pump (6) through the hollow needle (17).
  • the cartridge (13) In order to operate the tool (1) the cartridge (13) is pushed down axially in the direction of the cleaning head (5) which causes the pump (6) to be actuated, thereby transferring household cleaning fluid from the cartridge (13) through the channels (9) to the array of bristle tufts (10).
  • the spring-loading of the pump (6) returns the cartridge (13) to its starting position after the pump stroke.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Brushes (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Non-Flushing Toilets (AREA)
  • Food-Manufacturing Devices (AREA)
  • Materials For Medical Uses (AREA)
  • Detergent Compositions (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Claims (5)

  1. Outil de nettoyage ménager (1) qui comprend un logement allongé (3) incorporant un réservoir (13) pour liquide de nettoyage ménager, le logement (3) comportant à une extrémité une tête de nettoyage (5), la tête de nettoyage (5) formant une chambre creuse (7) qui est en communication fluidique avec le réservoir (13) et qui est munie d'au moins une sortie (9) pour la distribution du liquide de nettoyage ménager, caractérisé en ce que la chambre creuse (7) formée par la tête de nettoyage (5) contient un obturateur d'insertion de remplissage d'espace (11) .
  2. Outil de nettoyage (1) selon la revendication 1, dans lequel l'obturateur d'insertion de remplissage de l'espace (11) est muni de saillies (12) sur sa surface, lesquelles saillies (12) forment un ajustement encastré avec la surface intérieure (8a) de la chambre creuse (7) de la tête de nettoyage (5).
  3. Outil de nettoyage (1) selon la revendication 1 ou 2, dans lequel la chambre creuse (7) de la tête de nettoyage (5) et l'obturateur d'insertion de remplissage d'espace (11) sont tous deux de forme généralement cylindrique, l'obturateur (11) s'adaptant de manière concentrique à l'intérieur de la chambre (7), et l'obturateur (11) étant muni de rangées longitudinales de crampons (12), lesquels crampons (12) forment un ajustement encastré avec la surface intérieure (8a) de la chambre (7) de la tête de nettoyage (5).
  4. Outil de nettoyage (1) selon l'une quelconque des revendications 1 à 3, dans lequel la tête de nettoyage (5) est munie sur sa surface extérieure (8b) d'une rangée de poils ou de poils synthétiques (10).
  5. Tête de nettoyage remplaçable (5), à utiliser avec un outil de nettoyage (1) selon l'une quelconque des revendications 1 à 4, ladite tête de nettoyage (5) formant une chambre creuse (7) pour une communication fluidique avec le réservoir (13) de l'outil de nettoyage (1) et étant munie d'au moins une sortie (9) pour la distribution d'un liquide de nettoyage ménager, caractérisée en ce que la chambre creuse (7) formée par la tête de nettoyage (5) contient un obturateur d'insertion de remplissage d'espace (11).
EP03792240A 2002-08-16 2003-07-31 Outil de nettoyage menager a resistance aux fuites amelioree Expired - Lifetime EP1534112B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03792240A EP1534112B1 (fr) 2002-08-16 2003-07-31 Outil de nettoyage menager a resistance aux fuites amelioree

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP02255747 2002-08-16
EP02255747 2002-08-16
EP03792240A EP1534112B1 (fr) 2002-08-16 2003-07-31 Outil de nettoyage menager a resistance aux fuites amelioree
PCT/EP2003/008502 WO2004017804A1 (fr) 2002-08-16 2003-07-31 Outil de nettoyage menager a resistance aux fuites amelioree

Publications (2)

Publication Number Publication Date
EP1534112A1 EP1534112A1 (fr) 2005-06-01
EP1534112B1 true EP1534112B1 (fr) 2006-05-17

Family

ID=31896956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03792240A Expired - Lifetime EP1534112B1 (fr) 2002-08-16 2003-07-31 Outil de nettoyage menager a resistance aux fuites amelioree

Country Status (8)

Country Link
EP (1) EP1534112B1 (fr)
JP (1) JP4418367B2 (fr)
AT (1) ATE326169T1 (fr)
AU (1) AU2003258554A1 (fr)
CA (1) CA2495397C (fr)
DE (1) DE60305327T2 (fr)
ES (1) ES2262006T3 (fr)
WO (1) WO2004017804A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITAN20130020A1 (it) * 2013-02-04 2014-08-05 Massimiliano Mazzoli Spazzolino per wc con erogatore di sapone incorporato

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10001182C2 (de) * 2000-01-07 2003-08-14 Dagobert Haist Reinigungsgerät für Klosettschüsseln
WO2001065969A1 (fr) * 2000-03-09 2001-09-13 Joachim Dettmann Brosse pourvue d'un dispositif de distribution de liquide de nettoyage

Also Published As

Publication number Publication date
CA2495397C (fr) 2011-04-26
EP1534112A1 (fr) 2005-06-01
JP2005535423A (ja) 2005-11-24
WO2004017804A1 (fr) 2004-03-04
CA2495397A1 (fr) 2004-03-04
AU2003258554A1 (en) 2004-03-11
DE60305327T2 (de) 2007-04-26
ES2262006T3 (es) 2006-11-16
JP4418367B2 (ja) 2010-02-17
ATE326169T1 (de) 2006-06-15
DE60305327D1 (de) 2006-06-22

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