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
  • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
• • 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
  • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
• • 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
  • A47L11/4044—Vacuuming or pick-up tools; Squeegees
• • 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
  • A47L11/4063—Driving means; Transmission means therefor
  • A47L11/4069—Driving or transmission means for the cleaning 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
  • A47L11/40—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
  • A47L11/4077—Skirts or splash guards
• • 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
  • A47L11/408—Means for supplying cleaning or surface treating agents
  • A47L11/4088—Supply pumps; Spraying devices; Supply conduits
• • 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
  • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
  • A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads
  • A47L9/0613—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads with means specially adapted for picking up threads, hair or the like, e.g. brushes, combs, lint pickers or bristles pads
• • 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
  • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
  • A47L9/0673—Nozzles with fixed, e.g. adjustably fixed brushes or the like with removable brushes, combs, lips or pads

Definitions

• the invention relates to a cleaning head for a floor cleaning device with at least one nozzle that can be connected to a cleaning agent supply for applying a vaporous or liquid cleaning agent to a floor surface to be cleaned, and with respect to a feed movement of the cleaning head, front and rear suction openings for receiving dirt and applied cleaning agent can be connected to a suction unit via a suction line, as well as to the front and rear wiper lips assigned to the suction openings, which can be lowered onto the floor surface depending on the feed movement and raised from the floor surface.
• Cleaning heads of this type are used in particular in so-called spray extraction devices, that is to say in floor cleaning devices in which a liquid or vapor cleaning agent is applied to the floor surface to be cleaned and the cleaning agent, together with the loosened dirt, is sucked off again via a suction line.
• the wiping lips are provided to wipe the liquid cleaning agent as completely as possible from the floor surface to be cleaned.
• a cleaning head is known for example from WO 94/06343.
• a swivel mechanism is proposed in WO 97/15224 with two swivel levers, on the free ends of which the scraper lips are held and which can be swiveled by means of a sliding shoe engaging on the bottom surface.
• the slide shoe has the result that the reduction in the frictional force between the cleaning head and the base surface achieved by lifting one of the wiper lips is practically canceled out by the friction of the slide shoe.
• the object of the present invention is to develop a cleaning head of the type mentioned at the outset in such a way that it is easier to handle and less susceptible to interference.
• the cleaning head comprises a suction housing with a suction channel opening into the suction openings, and a carrying part holding the suction housing, the suction housing being displaceable relative to the carrying part against the feed direction and the cleaning head having gear means for Implementation of the displacement movement of the suction housing in a lifting and lowering movement of the wiper lips.
• the cleaning head is formed at least in two parts with a suction housing and a support part, the suction housing being displaceable relative to the support part.
• gear means are used which convert the relative movement of the suction housing into a lifting and lowering movement of the wiper lips.
• the displacement movement of the suction housing is thus used to raise and lower the wiper lips; an additional sliding shoe that engages the floor surface to be cleaned can be omitted.
• the cleaning head according to the invention thus has less friction on the floor surface and is therefore easier to handle.
• the gear means preferably comprise at least one pivot element which can be pivoted as a function of the displacement movement of the suction housing about a horizontal pivot axis, preferably oriented transversely to the feed movement.
• the wiping lips can thus be raised and lowered via the pivotable swivel element.
• the swivel element comprises a swiveling rocker with two swivel arms, on the free ends of which the wiping lips are held.
• the gear means have two rockers aligned parallel to one another, on the free ends of which the wiper lips are held. This enables a particularly interference-resistant mounting of the scraper lips, in addition a positive guidance is ensured in a structurally simple manner such that when one of the two scraper lips is raised, the other scraper lip is simultaneously lowered.
• a driver In order to move the pivoting element, a driver can be provided, which engages with the pivoting element and pivots the pivoting element as a function of the displacement movement of the suction housing.
• the swivel element is mounted on the suction housing and that the driver comprises a swivel pin mounted on the support part and displaceable relative to the suction housing. If the suction housing relative to Carried part displaced, this leads to a movement of the pivot pin relative to the bearing point of the pivot element on the suction housing, so that the pivot element is pivoted.
• the driver comprises a pivot pin held on the suction housing and displaceable relative to the support part, and the pivot element is mounted on the support part. Even with such an arrangement it is ensured that a relative movement of the suction housing results in a corresponding relative movement of the pivot pin with respect to the bearing point of the pivot element, so that the pivot element is driven to perform a pivoting movement.
• two pivot pins aligned parallel to one another are provided, on each of which the pivot element is pivotably held, the position of at least one pivot pin relative to the pivot element being changeable as a function of the displacement movement of the suction housing.
• the suction housing is held pivotable about a horizontal axis on the support member.
• the suction housing can not only perform a displacement movement relative to the supporting part, but it can additionally be pivoted about a horizontal pivot axis, preferably oriented transversely to the feed direction. This makes it possible to change the inclination of the support part relative to the suction housing, ie, for example in the case of uneven floors, the suction housing can follow the course of the floor surface to be cleaned without this requiring a compensating movement on the support part. This simplifies the operation of the cleaning head.
• the support part forms a support bracket which laterally overlaps the suction housing.
• the latter can, for example, be designed essentially U-shaped and, with its free legs, accommodate the suction housing between them.
• the design of the support part as the suction housing on its two longitudinal sides overlapping support bracket gives the possibility of holding the suction housing on both sides. One-sided load moments transverse to the feed direction are avoided. This has the consequence that the cleaning head is particularly robust and insensitive to interference.
• a pipe socket for connecting a suction pipe is arranged on a crossbar connecting the two free legs. is not.
• the pipe socket can be in flow connection with the suction openings of the suction housing via a flexible connecting bellows.
• the wiper lips are held pivotably about a horizontal pivot axis, preferably oriented transversely to the feed direction, depending on the feed movement of the cleaning head.
• the wiping lips not only perform a lifting and lowering movement, but also a pivoting movement such that they are aligned obliquely to the feed movement, the wiping effect of the wiping lips being increased so that practically no cleaning fluid remains on the cleaned floor surface.
• the cleaning head comprises guideways in which the wiping lips can be moved and pivoted about a horizontal pivot axis oriented transversely to the feed direction.
• the guideways result in a reliable mounting of the wiper lips
• the guideways can be used to form a positive guide such that a pivoting movement is coupled with the lifting and lowering movement of the wiper lips.
• the wiper lips with a first articulation point on the swivel element and are articulated with a second articulation point on a sliding element held displaceably in the guideway.
• the guideway is preferably arranged obliquely to the horizontal. If a wiper lip is lowered by pivoting the swivel element in the direction of the floor surface, it is simultaneously aligned obliquely to the horizontal due to its articulation on the sliding element.
• the scraper lips are kept pivotable within the suction openings, because this enables the use of the scraper lips as flow guiding elements by aligning them within the suction openings in such a way that the suction force caused by a suction unit connected to the cleaning head is in each case directly in the feed direction the scraper lips comes into effect, whereby the scraper effect of the scraper lips is increased to accommodate detergent applied to the floor surface.
• the cleaning head usually has a mat or fleece-shaped cleaning covering on its underside, which is held on a carrier element.
• the suction housing receives a plate-shaped carrier element, the latter being detachably held on a flow element delimiting the flow channel and releasably connectable to the suction housing. This enables the carrier element to be removed from the suction housing for cleaning the cleaning covering held on it. If necessary, this can also be done Flow element can be removed from the suction housing so that the entire cleaning head can be cleaned in a simple manner. It is advantageous here if the connection of the flow element to the suction housing can only be released after the carrier element has been separated from the flow element. This prevents erroneous disassembly of the flow element.
• the carrier element and the flow element are held on the suction housing by means of at least one adjustable quick connector, the quick connector releasing only the carrier element in a first position and the flow element in a second position when the carrier element is separated from the suction housing.
• the quick connector can be designed, for example, in the form of a bayonet lock with a rotatable closure piece which is arranged on the upper side of the suction housing facing away from the bottom surface and which fixes the carrier element and the flow element in the suction housing in a basic or closed position, in a first rotational position only the carrier element and in one second rotational position with the carrier element separated, the flow element is released.
• the carrier element forms a stop for the closure piece, so that the closure piece can only be rotated from the first into the second rotational position if the carrier element has been removed from the suction housing beforehand. This enables a particularly simple assembly and disassembly of the cleaning head can also be done by an inexperienced person.
• Figure 1 is a partially cut front view of a cleaning head
• Figure 2 is a longitudinal sectional view of the cleaning head along the line 2-2 in Figure 1;
• Figure 3 is a sectional view of the cleaning head along the line 3-3 in Figure 1 with a forward movement of the cleaning head and
• Figure 4 is a sectional view of the cleaning head corresponding to Figure 3 with a backward movement of the cleaning head.
• a cleaning head generally designated by reference number 10
• a carrying part in the form of an essentially U-shaped carrying bracket 12, which has two free legs 14 and 16 and a crossbar 18 connecting the two legs 14 and 16, and with an essentially cuboid suction housing 20 which is arranged between the two legs 14 and 16 of the bracket 12.
• the suction housing comprises an end wall 22, one aligned parallel to the end wall 22 Rear wall 23, two side walls 24 and 25 and a common top wall 26.
• the suction housing 20 thus forms a hood open in the direction of the bottom surface 28.
• the top wall 26 has an obliquely aligned to the horizontal connection opening 30, to which a suction pipe 31 designed as a flexible connecting bellows is fixed, which is connected to a suction nozzle 32 fixed to the crossbeam 18 of the carrying bracket 12, to the in known per se and therefore in In the drawing, not shown, a suction pipe can be connected to connect the cleaning head 10 to a suction unit (not shown).
• a flow element in the form of a flow hood 37 is detachably held within the suction housing 12 by means of two bayonet locks 34, 35.
• This comprises a horizontal cover 39 aligned parallel to the bottom surface 33, from which, at an angle to the horizontal, a front and a rear flow guide surface 40 or 41 protrude in the direction of the bottom surface 28.
• the flow hood 37 receives a support frame 43 which occupies practically the entire space between the front and rear flow guiding surfaces 40, 41 and carries a mat or fleece-like cleaning covering 44 on its underside facing the bottom surface 28.
• the support frame 43 is held on the top wall 26 of the suction housing 20 in accordance with the flow hood 37.
• the bayonet locks 34 and 35 are designed such that they can be rotated in such a way that in a closed position they fix the flow hood 37 and the support frame 43 within the suction housing 20, while in a first rotational position they enable the support frame 43 to be separated from the flow hood 37 and the suction housing 20.
• a second rotational position is provided for the bayonet locks 34 and 35, in which the flow hood 37 can also be removed from the suction housing 20.
• the support frame 43 forms a stop for the bayonet locks 34, 35, so that they can only be rotated into their second rotational position if the support frame 43 has been removed from the suction housing 20 beforehand.
• the front flow guide surface 40 in combination with the end wall 22 of the suction housing 20, defines a front suction channel 46, which merges into a front suction opening 48 on the underside of the cleaning head 10. det.
• the rear flow guide surface 41 in combination with the rear wall 23, delimits a rear flow channel 50, which opens into a rear suction opening 52 on the underside of the cleaning head 10.
• the two suction channels 46 and 50 open in the flow direction into a common suction channel 54, which is delimited by the top wall 26 of the suction housing and the cover 39 of the flow hood 37 and is in flow connection with the flexible suction line 31 via the connection opening 30.
• a suction flow in the direction of the suction line 31 can thus be formed via the front and rear suction channels 48 and 50 and the common suction channel 54.
• the cover 39 carries on its underside facing the support frame 43 over the entire width of the flow hood 37, a plurality of nozzles 56 which pass through a delivery channel 57 formed in the cover 39 with a connection element 58 arranged on the rear wall 23 of the suction housing 20 for a delivery line 59 are connected.
• vaporous or liquid cleaning agent can be applied to the net-like support frame 43 and the top of the cleaning covering 44.
• the cleaning agent then penetrates the cleaning covering 44 and is distributed over this on the floor surface 28 to be cleaned. Under the action of the particularly vaporous cleaning agent, dirt loosens from the bottom surface 28, which then together with the cleaning agent can be sucked from the bottom surface 28 via the suction channels 46 and 50.
• a front and a rear wiping lip 62 and 64 are additionally within the suction channels 46 and 50, respectively, about a horizontal, transverse to the in the Figures 3 and 4 pivot axis aligned by the arrow 66 symbolized feed direction pivotable and lowerable in the direction of the bottom surface 28 and held by this.
• the wiping lips 62 and 64 each comprise a rubber lip 63 or 65 which engages on the bottom surface 28 and is positively connected to a holding rail 68 which is preferably made of metal or plastic.
• rockers 70 and 71 of identical design are provided on the side walls 24 and 25 of the suction housing 20.
• the rockers 70, 71 each form two integrally connected swivel arms 72 and 73, at the free ends of which a wiper lip 62, 64 is articulated.
• the pivotable mounting of the rockers 70 and 71 on the side walls 24 and 25 as well as the mounting of the suction housing 20 on the handle 12 is carried out by means of an upper pivot pin 75 and a lower pivot pin 77, which are aligned parallel to one another. Both pivot pins 75, 77 pass through both a side wall 24 or 25 of the suction housing and also an inner wall 80 of the free legs 14 and 16 of the carrying handle 12 which is double-walled in this area and runs parallel to this.
• the upper pivot pin 75 is in this case on the side wall 24 or 25 of the suction housing 20 is fixed and passes through a recess 82 in the inner wall 80 so that it can be displaced relative to the inner wall 80.
• the lower pivot pin 77 is fixed to the inner wall 80 and extends through an elongated opening 84 of the side wall 24 and 25 of the suction housing 20.
• the two pivot pins 75 and 77 are articulated via an articulated arm 86 at their end regions facing away from the interior of the suction housing 20 connected with each other.
• the rockers 70 and 71 are held on the upper pivot pin 75 via a corresponding through bore 88, while a slot 90 is provided in the vertical direction for the mounting on the lower pivot pin 77, which oblong hole 90 faces the lower pivot pin 77 with its interior facing the suction housing 20 Reaches through the end area.
• the relative movement of the suction housing has the result that the two rockers 70 and 71 are pivoted about the horizontal longitudinal axis of the upper pivot pin 75, which is oriented transversely to the feed direction 66, the free end of the pivot arm oriented in the feed direction 66 being raised and the corresponding end of the pivot arm opposing the feed direction being lowered.
• the suction housing 20 is held on the bracket 12 against the feed direction 66 by means of the two pivot pins 75 and 77, which are connected to one another via the articulated arm 86.
• the lower pivot pin 77 also defines a pivot axis about which the suction housing 20 can be pivoted, since the upper pivot pin 75 is freely movable in the cutout 82 of the carrying handle 12.
• the pivoting movement takes place in such a way that the scraper lips 62 and 64 bear against the rearward limitation of the suction openings 48 and 52 with respect to the feed direction 66, so that the total suction force effective in the suction openings 48 and 52 is immediately in front of the scraper lips 62 and 64 comes to fruition.
• This has the consequence that the wiping effect caused by the wiping lips 62 and 64 is considerably increased, so that practically no cleaning agent applied to the bottom surface 28 remains on the bottom surface 28.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Nozzles For Electric Vacuum Cleaners (AREA)
• Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
• Cleaning In General (AREA)
• Casting Or Compression Moulding Of Plastics Or The Like (AREA)
• Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7629155

Family Applications (1)

Country Status (7)

Cited By (16)

Families Citing this family (26)

Citations (6)

• 2000
  • 2000-01-29 DE DE10003883A patent/DE10003883C1/de not_active Expired - Fee Related
• 2001
  • 2001-01-10 JP JP2001555536A patent/JP2003525079A/ja not_active Ceased
  • 2001-01-10 KR KR1020027009754A patent/KR20020077404A/ko not_active Application Discontinuation
  • 2001-01-10 AT AT01900147T patent/ATE339148T1/de not_active IP Right Cessation
  • 2001-01-10 AU AU2001223735A patent/AU2001223735A1/en not_active Abandoned
  • 2001-01-10 WO PCT/EP2001/000218 patent/WO2001054555A1/de active IP Right Grant
  • 2001-01-10 EP EP01900147A patent/EP1250079B1/de not_active Expired - Lifetime

Patent Citations (6)

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