EP1250079A1 - Cleaning head for a floor-cleaning device - Google Patents

Cleaning head for a floor-cleaning device

Info

Publication number
EP1250079A1
EP1250079A1 EP01900147A EP01900147A EP1250079A1 EP 1250079 A1 EP1250079 A1 EP 1250079A1 EP 01900147 A EP01900147 A EP 01900147A EP 01900147 A EP01900147 A EP 01900147A EP 1250079 A1 EP1250079 A1 EP 1250079A1
Authority
EP
European Patent Office
Prior art keywords
cleaning head
suction
suction housing
head according
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.)
Granted
Application number
EP01900147A
Other languages
German (de)
French (fr)
Other versions
EP1250079B1 (en
Inventor
Ulrike Tetek
Günther Erbel
Ralph Diehl
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP1250079A1 publication Critical patent/EP1250079A1/en
Application granted granted Critical
Publication of EP1250079B1 publication Critical patent/EP1250079B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • A47L11/29—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
    • 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)

Abstract

The invention relates to a cleaning head for a floor-cleaning device, comprising the following: at least one nozzle, which can be connected to a cleaning product supply for applying a cleaning product in vapor or liquid form to a floor surface to be cleaned; a front suction opening and a back suction opening (in relation to the direction of advancement of the cleaning head) for taking up dirt and used cleaning product, which can be connected to a suction assembly; and front and back squeegee-type lip elements which are associated with the suction openings and which can be lowered onto or raised from the floor surface according to the advancing movement. The aim of the invention is to configure a cleaning head of this type in such a way that this is easier to handle and more resistant to disturbances. To this end, the inventive cleaning head (10) comprises a suction housing (20) with a suction channel (46, 50) that opens into the suction openings (48, 52) and a bearing part (12) for supporting said suction housing (20). The suction housing (20) can be displaced in relation to the bearing part (12), towards the direction of advancement (66), and the cleaning head (10) has gear elements (70, 71, 75, 77) for converting the displacement of the suction housing (20) into a movement raising or lowering the squeegee lip elements (62, 64).

Description

Reinigungskopf für ein Bodenreinigungsgerät Cleaning head for a floor cleaning device
Die Erfindung betrifft einen Reinigungskopf für ein Bodenreinigungsgerät mit zumindest einer mit einem Reinigungsmittelvorrat verbindbaren Düse zum Aufbringen eines dampfförmigen oder flüssigen Reinigungsmittels auf eine zu reinigende Bodenfläche, und mit bezogen auf eine Vorschubbewegung des Reinigungskopfes vorderen und hinteren Saugöffnungen zur Aufnahme von Schmutz und aufgebrachtem Reinigungsmittel, die über eine Saugleitung mit einem Saugaggregat verbindbar sind, sowie mit den Saugöffnungen zugeordneten vorderen und hinteren Abstreiflippen, die in Abhängigkeit von der Vorschubbewegung auf die Bodenfläche absenkbar und von der Bodenfläche anhebbar sind.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.
Reinigungsköpfe dieser Art kommen insbesondere bei sogenannten Sprühextraktionsgeräten zum Einsatz, also bei Bodenreinigungsgeräten, bei denen ein flüssiges oder dampfförmiges Reinigungsmittel auf die zu reinigende Bodenfläche aufgebracht und das Reinigungsmittel zusammen mit dem gelösten Schmutz über eine Saugleitung wieder abgesaugt wird. Hierbei sind die Abstreiflippen dazu vorgesehen, das flüssige Reinigungsmittel möglichst vollständig von der zu reinigenden Bodenfläche abzustreifen. Ein derartiger Reinigungskopf ist beispielsweise aus der WO 94/06343 bekannt.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. Such a cleaning head is known for example from WO 94/06343.
In der internationalen Offenlegungsschrift WO 97/15224 wird ein Reinigungskopf beschrieben, bei dem die vorderen und hinteren Abstreiflippen in Abhängigkeit von der Vorschubbewegung des Reinigungskopfes auf die Bodenfläche absenkbar und von der Bodenfläche anhebbar sind. Dies gibt die Möglichkeit, die in Vorschubrichtung vordere Abstreiflippe anzuheben, während die hintere Abstreiflippe abgesenkt wird, so daß auf der Bodenfläche befindlicher Schmutz beim Bewegen des Reinigungskopfes in den Bereich zwischen die beiden Abstreiflippen gelangen und abgesaugt werden kann, d. h. es wird vermieden, daß die vordere Abstreiflippe den Schmutz vor sich herschiebt. Außerdem hat das Anheben einer der beiden Abstreiflippen eine verringerte Reibungskraft zwischen Reinigungskopf und Bodenfläche zur Folge, wodurch die Handhabung des Reinigungskopfes vereinfacht wird.In the international patent application WO 97/15224 a cleaning head is described in which the front and rear wiper lips depending on the Feed movement of the cleaning head can be lowered onto the floor surface and raised from the floor surface. This makes it possible to raise the front wiper lip in the feed direction while the rear wiper lip is lowered, so that dirt on the floor surface can get into the area between the two wiper lips and be vacuumed when the cleaning head is moved, ie it is avoided that the front wiper lip pushes the dirt in front of it. In addition, lifting one of the two wiper lips results in a reduced frictional force between the cleaning head and the floor surface, which simplifies the handling of the cleaning head.
Zum Absenken und Anheben der Abstreiflippen wird in der WO 97/15224 ein Schwenkmechanismus vorgeschlagen mit zwei Schwenkhebeln, an deren freien Enden die Abstreif- lippen gehalten sind und die mittels eines an der Bodenfläche angreifenden Gleitschuhes verschwenkt werden können. Der Gleitschuh hat allerdings zur Folge, daß die durch das Anheben einer der Abstreiflippen erzielte Verringerung der Reibungskraft zwischen Reinigungskopf und Bodenfläche durch die Reibung des Gleitschuhes praktisch wieder aufgehoben wird.For lowering and raising the scraper lips, 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. However, 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.
Aus der WO 98/12956 ist ein weiterer Reinigungskopf mit in Abhängigkeit von dessen Vorschubbewegung anhebbaren und absenkbaren Abstreiflippen bekannt, zu deren Betätigung allerdings ein konstruktiv aufwendiges und störungsanfälliges Zahnradgetriebe erforderlich ist. Aufgabe der vorliegenden Erfindung ist es, einen Reinigungskopf der eingangs genannten Art derart weiterzubilden, daß er einfacher handhabbar und störungsunempfindlicher ist.From WO 98/12956 a further cleaning head with wiping lips that can be raised and lowered depending on its feed movement is known, however, a structurally complex and fault-prone gear transmission is required for its actuation. 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.
Diese Aufgabe wird für einen gattungsgemäßen Reinigungskopf erfindungsgemäß dadurch gelöst, daß der Reinigungskopf ein Sauggehäuse umfaßt mit einem in die Saugöffnungen einmündenden Saugkanal, sowie ein das Sauggehäuse halterndes Trageteil, wobei das Sauggehäuse gegenüber dem Trageteil entgegen der Vorschubrichtung verschiebbar ist und wobei der Reinigungskopf Getriebemittel aufweist zur Umsetzung der Verschiebebewegung des Sauggehäuses in eine Anhebe- und Absenkbewegung der Abstreiflippen.This object is achieved according to the invention for a generic cleaning head in that 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.
Erfindungsgemäß ist vorgesehen, den Reinigungskopf zumindest zweiteilig auszubilden mit einem Sauggehäuse und einem Trageteil, wobei das Sauggehäuse gegenüber dem Trageteil verschiebbar ist. Außerdem kommen Getriebemittel zum Einsatz, die die Relativbewegung des Sauggehäuses in eine Anhebe- und Absenkbewegung der Abstreiflippen umsetzen. Es wird somit die Verschiebebewegung des Sauggehäuses zum Anheben und Absenken der Abstreiflippen eingesetzt, ein zusätzlicher Gleitschuh, der an der zu reinigenden Bodenfläche angreift, kann entfallen. Der erfindungsgemäße Reinigungskopf weist somit eine geringere Reibung an der Bodenfläche auf und ist demzufolge einfacher handhabbar. Bevorzugt umfassen die Getriebemittel zumindest ein in Abhängigkeit von der Verschiebebewegung des Sauggehäuses um eine horizontale, vorzugsweise quer zur Vorschubbewegung ausgerichtete Schwenkachse verschwenkbares Schwenkelement. Das Anheben und Absenken der Abstreiflippen kann somit über das verschwenkbare Schwenkelement erfolgen. Hierbei kann beispielsweise vorgesehen sein, daß das Schwenkelement eine verschwenkbare Wippe umfaßt mit zwei Schwenkarmen, an deren freien Enden die Abstreiflippen gehalten sind.According to the invention, it is provided that 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. In addition, 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. It can be provided here, for example, that the swivel element comprises a swiveling rocker with two swivel arms, on the free ends of which the wiping lips are held.
Hierbei ist es besonders günstig, wenn die Getriebemittel zwei parallel zueinander ausgerichtete Wippen aufweisen, an deren freien Enden die Abstreiflippen gehalten sind. Dies ermöglicht eine besonders störungsunempfindliche Halterung der Abstreiflippen, wobei zusätzlich auf konstruktiv einfache Weise eine Zwangsführung sichergestellt wird derart, daß mit dem Anheben einer der beiden Abstreiflippen gleichzeitig die andere Abstreiflippe abgesenkt wird.It is particularly advantageous here if 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.
Um das Schwenkelement zu bewegen kann ein Mitnehmer vorgesehen sein, der mit dem Schwenkelement in Eingriff steht und das Schwenkelement in Abhängigkeit von der Verschiebebewegung des Sauggehäuses verschwenkt.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.
Bei einer konstruktiv einfachen Ausgestaltung ist hierbei vorgesehen, daß das Schwenkelement am Sauggehäuse gelagert ist und daß der Mitnehmer einen am Trageteil gelagerten, relativ zum Sauggehäuse verschiebbaren Schwenkzapfen umfaßt. Wird das Sauggehäuse relativ zum Trageteil verschoben, so führt dies zu einer Bewegung des Schwenkzapfens relativ zur Lagerstelle des Schwenkelements am Sauggehäuse, so daß das Schwenkelement verschwenkt wird.In a structurally simple embodiment it is provided that 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.
Anstatt den Schwenkzapfen am Trageteil zu lagern, ist bei einer vorteilhaften Ausgestaltung der Erfindung vorgesehen, daß der Mitnehmer einen am Sauggehäuse gehaltenen, relativ zum Trageteil verschiebbaren Schwenkzapfen umfaßt und das Schwenkelement am Trageteil gelagert ist. Auch bei einer derartigen Anordnung wird sichergestellt, daß eine Relativbewegung des Sauggehäuses eine entsprechende Relativbewegung des Schwenkzapfens bezogen auf die Lagerstelle des Schwenkelements zur Folge hat, so daß das Schwenkelement zu einer Schwenkbewegung angetrieben wird.Instead of mounting the pivot pin on the support part, it is provided in an advantageous embodiment of the invention that 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.
Bei einer bevorzugten Ausführungsform des erfindungsgemäßen Reinigungskopfes sind zwei parallel zueinander ausgerichtete Schwenkzapfen vorgesehen, an denen das Schwenkelement jeweils schwenkbar gehalten ist, wobei die Lage zumindest eines Schwenkzapfens bezogen auf das Schwenkelement in Abhängigkeit von der Verschiebebewegung des Sauggehäuses veränderbar ist. Der Einsatz zweier Schwenkzapfen zur Halterung des Schwenkelementes hat eine besonders zuverlässige, mechanisch belastbare Halterung des Schwenkelementes zur Folge, so daß der Reinigungskopf besonders störungsunempfindlich ist.In a preferred embodiment of the cleaning head according to the invention, 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 use of two pivot pins to hold the pivot element results in a particularly reliable, mechanically resilient mounting of the pivot element, so that the cleaning head is particularly insensitive to faults.
Um die Handhabbarkeit des Reinigungskopfes zusätzlich zu vereinfachen, ist es von Vorteil, wenn das Saugge- häuse um eine horizontale Achse verschwenkbar am Trageteil gehalten ist. Das Sauggehäuse kann bei einer derartigen Konstruktion nicht nur eine Verschiebebewegung relativ zum Trageteil ausführen, sondern es kann zusätzlich um eine horizontale, vorzugsweise quer zur Vorschubrichtung ausgerichtete Schwenkachse verschwenkt werden. Dies ermöglicht es, die Neigung des Trageteiles relativ zum Sauggehäuse zu verändern, d. h. beispielsweise bei Bodenunebenheiten kann das Sauggehäuse dem Verlauf der zu reinigenden Bodenfläche folgen, ohne daß dies eine Ausgleichsbewegung am Trageteil erfordert. Die Bedienung des Reinigungskopfes wird dadurch vereinfacht.To further simplify the handling of the cleaning head, it is advantageous if the suction housing is held pivotable about a horizontal axis on the support member. With such a construction, 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.
Bei einer bevorzugten Ausführungsform ist vorgesehen, daß das Trageteil einen das Sauggehäuse seitlich übergreifenden Tragebügel ausbildet. Letzterer kann beispielsweise im wesentlichen U-förmig ausgestaltet sein und mit seinen freien Schenkeln das Sauggehäuse zwischen sich aufnehmen. Die Ausgestaltung des Trageteils als das Sauggehäuse an dessen beiden Längsseiten übergreifender Tragbügel gibt die Möglichkeit, das Sauggehäuse beidseitig zu haltern. Einseitige Belastungsmomente quer zur Vorschubrichtung werden dadurch vermieden. Dies hat zur Folge, daß der Reinigungskopf besonders robust und störungsunempfindlich ist.In a preferred embodiment it is provided that 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.
Bei einer im wesentlichen U-förmigen Ausgestaltung des Trageteils ist es von Vorteil, wenn an einer die beiden freien Schenkel miteinander verbindenden Quertraverse ein Rohrstutzen zum Anschluß eines Saugrohres angeord- net ist. Der Rohrstutzen kann über einen flexiblen Verbindungsbalg mit den Saugöffnungen des Sauggehäuses in Strömungsverbindung stehen.In the case of an essentially U-shaped configuration of the support part, it is advantageous if 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.
Bei einer besonders vorteilhaften Ausgestaltung des erfindungsgemäßen Reinigungskopfes ist vorgesehen, daß die Abstreiflippen in Abhängigkeit von der Vorschubbewegung des Reinigungskopfes um eine horizontale, vorzugsweise quer zur Vorschubrichtung ausgerichtete Schwenkachse verschwenkbar gehalten sind. Bei einer derartigen Ausführungsform führen die Abstreiflippen nicht nur eine Anhebe- und Absenkbewegung durch, sondern zusätzlich eine Verschwenkbewegung dergestalt, daß sie sich schräg zur Vorschubbewegung ausrichten, wobei die AbstreifWirkung der Abstreiflippen verstärkt wird, so daß praktisch keine Reinigungsflüssigkeit auf der gereinigten Bodenfläche zurückbleibt.In a particularly advantageous embodiment of the cleaning head according to the invention, it is provided that 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. In such an embodiment, 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.
Besonders günstig ist es, wenn der Reinigungskopf Führungsbahnen umfaßt, in denen die Abstreiflippen verschiebbar und um eine horizontale, quer zur Vorschubrichtung ausgerichtete Schwenkachse verschwenkbar gehalten sind. Die Führungsbahnen haben zum einen eine zuverlässige Halterung der Abstreiflippen zur Folge, zum anderen läßt sich mittels der Führungsbahnen eine Zwangsführung ausbilden dergestalt, daß mit der Anhebe- und Absenkbewegung der Abstreiflippen gleichzeitig eine Verschwenkbewegung gekoppelt ist.It is particularly expedient if 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. On the one hand, the guideways result in a reliable mounting of the wiper lips, on the other hand, 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.
So kann beispielsweise vorgesehen sein, daß die Abstreiflippen mit einem ersten Anlenkpunkt am Schwenk- element und mit einem zweiten Anlenkpunkt an einem in der Führungsbahn verschieblich gehaltenen Gleitelement angelenkt sind. Die Führungsbahn ist hierbei vorzugsweise schräg zur Horizontalen angeordnet. Wird eine Abstreiflippe durch Verschwenken des Schwenkelementes in Richtung auf die Bodenfläche abgesenkt, so wird sie aufgrund ihrer Anlenkung am Gleitelement gleichzeitig schräg zur Horizontalen ausgerichtet.For example, it can be provided that 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.
Von Vorteil ist es, wenn die Abstreiflippen innerhalb der Saugöffnungen verschwenkbar gehalten sind, denn dies ermöglicht den Einsatz der Abstreiflippen als Strömungsleitelemente, indem sie innerhalb der Saugöffnungen derart ausgerichtet werden, daß die durch ein an den Reinigungskopf angeschlossenes Saugaggregat hervorgerufene Saugkraft jeweils in Vorschubrichtung unmittelbar vor den Abstreiflippen zur Wirkung kommt, wodurch der Abstreifeffekt der Abstreiflippen zur Aufnahme von auf die Bodenfläche aufgebrachtem Reinigungsmittel verstärkt wird.It is advantageous if 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.
Der Reinigungskopf weist üblicherweise auf seiner Unterseite einen matten- oder vliesförmigen Reinigungsbelag auf, der an einem Trägerelement gehalten ist. Von Vorteil ist es, wenn das Sauggehäuse ein plattenförmi- ges Trägerelement aufnimmt, wobei letzteres an einem den Strömungskanal begrenzenden, lösbar mit dem Sauggehäuse verbindbaren Strömungselement lösbar gehalten ist. Dies gibt die Möglichkeit, das Trägerelement zur Reinigung des daran gehaltenen Reinigungsbelags aus dem Sauggehäuse auszubauen. Bei Bedarf kann außerdem das Strömungselement dem Sauggehäuse entnommen werden, so daß der gesamte Reinigungskopf auf einfache Weise gereinigt werden kann. Hierbei ist es günstig, wenn die Verbindung des Strömungselements mit dem Sauggehäuse erst nach Abtrennen des Trägerelements vom Strömungselement lösbar ist. Dadurch wird eine irrtümliche Demontage des Strömungselements verhindert.The cleaning head usually has a mat or fleece-shaped cleaning covering on its underside, which is held on a carrier element. It is advantageous if 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.
Besonders günstig ist es, wenn das Trägerelement und das Strömungselement mittels zumindest eines einstellbaren Schnellverbindungsgliedes am Sauggehäuse gehalten sind, wobei das Schnellverbindungsglied in einer ersten Stellung lediglich das Trägerelement und bei vom Sauggehäuse abgetrenntem Trägerelement in einer zweiten Stellung das Strömungselement freigibt.It is particularly favorable if 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.
Das Schnellverbindungsglied kann beispielsweise in Form eines Bajonettverschlusses ausgebildet sein mit einem an der der Bodenfläche abgewandten Oberseite des Sauggehäuses angeordneten drehbaren Verschlußstück, das in einer Grund- oder Schließstellung das Trägerelement und das Strömungselement im Sauggehäuse festlegt, in einer ersten Drehstellung lediglich das Trägerelement und in einer zweiten Drehstellung bei abgetrenntem Trägerelement das Strömungselement freigibt. Günstig ist es, wenn das Trägerelement für das Verschlußstück einen Anschlag ausbildet, so daß das Verschlußstück erst dann von der ersten in die zweite Drehstellung verdreht werden kann, wenn zuvor das Trägerelement dem Sauggehäuse entnommen wurde. Dies ermöglicht eine besonders einfache Montage und Demontage des Reinigungskopfes, die auch von einer ungeübten Person vorgenommen werden können.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. It is expedient if 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.
Die nachfolgende Beschreibung einer bevorzugten Ausfüh- rungsform der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:The following description of a preferred embodiment of the invention serves in conjunction with the drawing for a more detailed explanation. Show it:
Figur 1: eine teilweise aufgetrennte Vorderansicht auf einen Reinigungskopf;Figure 1 is a partially cut front view of a cleaning head;
Figur 2: eine Längsschnittansicht des Reinigungskopfes entlang der Linie 2-2 in Figur 1;Figure 2 is a longitudinal sectional view of the cleaning head along the line 2-2 in Figure 1;
Figur 3: eine Schnittansicht des Reinigungskopfes längs der Linie 3-3 in Figur 1 bei einer Vorwärtsbewegung des Reinigungskopfes undFigure 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
Figur 4: eine Schnittansicht des Reinigungskopfes entsprechend Figur 3 bei einer Rückwärtsbewegung des Reinigungskopfes.Figure 4 is a sectional view of the cleaning head corresponding to Figure 3 with a backward movement of the cleaning head.
In der Zeichnung ist ein insgesamt mit dem Bezugszeichen 10 belegter Reinigungskopf dargestellt mit einem Trageteil in Form eines im wesentlichen U-förmigen Tragebügels 12, der zwei freie Schenkel 14 und 16 aufweist sowie eine die beiden Schenkel 14 und 16 miteinander verbindende Quertraverse 18, und mit einem im wesentlichen quaderförmig ausgebildeten Sauggehäuse 20, das zwischen den beiden Schenkeln 14 und 16 des Tragbügels 12 angeordnet ist. Das Sauggehäuse umfaßt eine Stirnwand 22, eine parallel zur Stirnwand 22 ausgerichtete Rückwand 23, zwei Seitenwände 24 und 25 sowie eine gemeinsame Deckwand 26. Das Sauggehäuse 20 bildet somit eine in Richtung auf die Bodenfläche 28 offene Haube.In the drawing, a cleaning head, generally designated by reference number 10, is shown with 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.
Die Deckwand 26 weist eine schräg zur Horizontale ausgerichtete Anschlußöffnung 30 auf, an der eine als flexibler Verbindungsbalg ausgebildete Saugleitung 31 festgelegt ist, die mit einem an der Quertraverse 18 des Tragebügels 12 festgelegten Saugstutzen 32 verbunden ist, an den in an sich bekannter und deshalb in der Zeichnung nicht dargestellter Weise ein Saugrohr anschließbar ist zur Verbindung des Reinigungskopfes 10 mit einem Saugaggregat (nicht dargestellt ) .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).
Innerhalb des Sauggehäuses 12 ist mittels zweier Bajonettverschlüsse 34, 35 ein Strömungselement in Form einer Strömungshaube 37 lösbar gehalten. Diese umfaßt einen horizontalen, parallel zur Bodenfläche 33 ausgerichteten Deckel 39, von dem schräg zur Horizontalen voneinander abweisend eine vordere und eine hintere Strömungsleitfläche 40 bzw. 41 in Richtung auf die Bodenfläche 28 abstehen.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.
Die Strömungshaube 37 nimmt einen Tragrahmen 43 auf, der praktisch den gesamten Zwischenraum zwischen den vorderen und hinteren Strömungsleitflächen 40, 41 einnimmt und an seiner der Bodenfläche 28 zugewandten Unterseite einen matten- oder vliesartigen Reinigungsbelag 44 trägt. Der Tragrahmen 43 ist entsprechend der Strömungshaube 37 an der Deckwand 26 des Sauggehäuses 20 gehalten. Zu diesem Zweck durchgreifen die Bajonett- Verschlüsse 34 und 35 in der Zeichnung nicht dargestellte Durchbrüche im Deckel 39 der Strömungshaube 37, so daß sie eine mechanische Halterung des Tragrahmens 43 am Deckel 39 ermöglichen. Die Bajonettverschlüsse 34 und 35 sind hierbei derart drehbar ausgebildet, daß sie in einer Schließstellung die Strömungshaube 37 und den Tragrahmen 43 innerhalb des Sauggehäuses 20 festlegen, während sie in einer ersten Drehstellung eine Abtrennung des Tragrahmens 43 von der Strömungshaube 37 und dem Sauggehäuse 20 ermöglichen. Zusätzlich ist für die Bajonettverschlüsse 34 und 35 eine zweite Drehstellung vorgesehen, in der auch die Strömungshaube 37 dem Sauggehäuse 20 entnommen werden kann. Der Tragrahmen 43 bildet hierbei für die Bajonettverschlüsse 34, 35 einen Anschlag, so daß sie erst dann in ihre zweite Drehstellung verdreht werden können, wenn zuvor der Tragrahmen 43 dem Sauggehäuse 20 entnommen wurde. Ein irrtümliches Verdrehen der Bajonettverschlüsse 34, 35 von ihrer Schließstellung bis in ihre zweite Drehstellung wird dadurch verhindert. Diese ermöglicht insgesamt eine auch von einer ungeübten Person nachvollziehbare Montage und Demontage des Sauggehäuses 22, so daß dieses auf einfache Weise gereinigt werden kann, wobei entweder nur der Tragrahmen 43 mit dem daran gehaltenen Reinigungsbelag 44 dem Sauggehäuse 20 entnommen wird oder zusätzlich auch die Strömungshaube 37.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. For this purpose, the bayonet Closures 34 and 35 in the drawing openings not shown in the cover 39 of the flow hood 37, so that they enable mechanical support of the support frame 43 on the cover 39. 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. In addition, 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. An erroneous twisting of the bayonet locks 34, 35 from their closed position into their second rotational position is thereby prevented. Overall, this enables assembly and disassembly of the suction housing 22, which can also be understood by an inexperienced person, so that it can be cleaned in a simple manner, either only the support frame 43 with the cleaning pad 44 held thereon is removed from the suction housing 20 or additionally the flow hood 37 ,
Die vordere Strömungsleitfläche 40 definiert in Kombination mit der Stirnwand 22 des Sauggehäuses 20 einen vorderen Saugkanal 46, der auf der Unterseite des Reinigungskopfes 10 in eine vordere Saugöffnung 48 einmün- det. In entsprechender Weise begrenzt die hintere Strömungsleitfläche 41 in Kombination mit der Rückwand 23 einen hinteren Strömungskanal 50, der auf der Unterseite des Reinigungskopfes 10 in eine hintere Saugöffnung 52 einmündet. Die beiden Saugkanäle 46 und 50 münden in Strömungsrichtung in einen gemeinsamen Absaugkanal 54, der durch die Deckwand 26 des Sauggehäuses und den Dek- kel 39 der Strömungshaube 37 begrenzt wird und über die Anschlußöffnung 30 mit der flexiblen Saugleitung 31 in Strömungsverbindung steht. Ausgehend von den Saugöffnungen 48 und 52 kann somit über die vorderen und hinteren Saugkanäle 48 bzw. 50 und den gemeinsamen Absaugkanal 54 eine Saugströmung in Richtung auf die Saugleitung 31 ausgebildet werden.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. In a corresponding manner, 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. Starting from the suction openings 48 and 52, 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.
Der Deckel 39 trägt auf seiner dem Tragrahmen 43 zugewandten Unterseite über die gesamte Breite der Strömungshaube 37 verteilt eine Vielzahl von Düsen 56, die über einen im Deckel 39 ausgebildeten Förderkanal 57 mit einem an der Rückwand 23 des Sauggehäuses 20 angeordneten Anschlußelement 58 für eine Förderleitung 59 verbunden sind. Über die Förderleitung 59 und die Düsen 56 läßt sich dampfförmiges oder flüssiges Reinigungsmittel auf den netzartigen Tragrahmen 43 und die Oberseite des Reinigungsbelages 44 aufbringen. Das Reinigungsmittel durchdringt dann den Reinigungsbelag 44 und wird über diesen auf der zu reinigenden Bodenfläche 28 verteilt. Unter der Einwirkung des insbesondere dampfförmigen Reinigungsmittels löst sich Schmutz von der Bodenfläche 28, der dann zusammen mit dem Reini- gungsmittel über die Saugkanäle 46 und 50 von der Bodenfläche 28 abgesaugt werden kann.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. Via the delivery line 59 and the nozzles 56, 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.
Um sicherzustellen, daß das auf die Bodenfläche 28 aufgebrachte Reinigungsmittel über die Saugkanäle 46 und 50 wieder aufgenommen wird, sind zusätzlich innerhalb der Saugkanäle 46 und 50 jeweils, eine vordere bzw. eine hintere Abstreiflippe 62 bzw. 64 um eine horizontale, quer zur in den Figuren 3 und 4 durch den Pfeil 66 symbolisierten Vorschubrichtung ausgerichtete Schwenkachse verschwenkbar und in Richtung auf die Bodenfläche 28 absenkbar und von dieser anhebbar gehalten. Die Abstreiflippen 62 und 64 umfassen jeweils eine an der Bodenfläche 28 angreifende Gummilippe 63 bzw. 65, die formschlüssig mit einer vorzugsweise aus Metall oder aus Kunststoff gefertigten Halteschiene 68 verbunden ist.In order to ensure that the cleaning agent applied to the bottom surface 28 is taken up again 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.
Zur Halterung der vorderen und hinteren Abstreiflippe 62 bzw. 64 sind an den Seitenwänden 24 und 25 des Sauggehäuses 20 jeweils identisch ausgebildete Wippen 70 und 71 vorgesehen. Die Wippen 70, 71 bilden jeweils zwei einstückig miteinander verbundene Schwenkarme 72 und 73, an deren freien Enden jeweils eine Abstreiflippe 62, 64 angelenkt ist.To mount the front and rear wiper lips 62 and 64, 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.
Die verschwenkbare Halterung der Wippen 70 und 71 an den Seitenwänden 24 bzw. 25 sowie die Halterung des Sauggehäuses 20 am Tragebügel 12 erfolgt mittels eines oberen Schwenkzapfens 75 und eines unteren Schwenkzapfens 77, die parallel zueinander ausgerichtet sind. Beide Schwenkzapfen 75, 77 durchgreifen sowohl eine Seitenwand 24 bzw. 25 des Sauggehäuses als auch eine parallel zu dieser verlaufende Innenwand 80 der in diesem Bereich doppelwandig ausgebildeten freien Schenkel 14 und 16 des Tragebügels 12. Der obere Schwenkzapfen 75 ist hierbei an der Seitenwand 24 bzw. 25 des Sauggehäuses 20 festgelegt und durchgreift eine Aussparung 82 der Innenwand 80, so daß er relativ zur Innenwand 80 verschoben werden kann. Im Gegensatz hierzu ist der untere Schwenkzapfen 77 an der Innenwand 80 festgelegt und durchgreift eine längliche Öffnung 84 der Seitenwand 24 bzw. 25 des Sauggehäuses 20. An ihren dem Inneren des Sauggehäuses 20 abgewandten Endbereichen sind die beiden Schwenkzapfen 75 und 77 über einen Gelenkarm 86 gelenkig miteinander verbunden. Die Halterung der Wippen 70 bzw. 71 am oberen Schwenkzapfen 75 erfolgt über eine korrespondierende Durchgangsbohrung 88 während für die Halterung am unteren Schwenkzapfen 77 ein sich in vertikaler Richtung erstreckendes Langloch 90 vorgesehen ist, welches der untere Schwenkzapfen 77 mit seinem dem inneren des Sauggehäuses 20 zugewandten Endbereich durchgreift.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. In contrast to this, 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.
Wird der Tragbügel 12 beim Einsatz des Reinigungskopfes 10 in Vorschubrichtung 66 entlang der Bodenfläche 28 verschoben, so wirkt auf das Sauggehäuse 20 aufgrund des auf der Bodenfläche 28 aufliegenden Reinigungsbelages 44 eine entgegen der Vorschubrichtung 66 wirkende Reibungskraft. Dies hat zur Folge, daß das Sauggehäuse 20 relativ zum Tragebügel 12 entgegen der Vorschubrichtung 66 verschoben wird, indem der obere Schwenkzapfen 75 innerhalb der Aussparung 82 der Innenwand 80 des Tragebügels 12 eine Bewegung entgegen der Vorschubrichtung 66 ausführt. Da die beiden Wippen 70 und 71 jeweils am oberen Schenkzapfen 75 unverschieblich gehalten sind und mit dem an der Innenwand 80 des Tragebügels 12 festgelegten unteren Schwenkzapfen 77 über das Langloch 90 in Eingriff stehen, hat die Relativbewegung des Sauggehäuses zur Folge, daß die beiden Wippen 70 und 71 um die horizontale, quer zur Vorschubrichtung 66 ausgerichtete Längsachse des oberen Schwenkzapfens 75 verschwenkt werden, wobei das freie Ende des in Vorschubrichtung 66 ausgerichteten Schwenkarmes angehoben und das entsprechende Ende des der Vorschubrichtung entgegen gerichteten Schwenkarmes abgesenkt wird.If the support bracket 12 is displaced in the feed direction 66 along the bottom surface 28 when the cleaning head 10 is used, then a frictional force acting against the feed direction 66 acts on the suction housing 20 due to the cleaning covering 44 resting on the bottom surface 28. The consequence of this is that the suction housing 20 is displaced relative to the carrying handle 12 against the feed direction 66 by the upper pivot pin 75 executes a movement against the feed direction 66 within the cutout 82 of the inner wall 80 of the carrying handle 12. Since the two rockers 70 and 71 are each immovably held on the upper pivot pin 75 and engage with the lower pivot pin 77 fixed on the inner wall 80 of the carrying bracket 12 via the elongated hole 90, 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.
Das Sauggehäuse 20 ist über die beiden Schwenkzapfen 75 und 77, die über den Gelenkarm 86 miteinander verbunden sind, am Tragebügel 12 entgegen der Vorschubrichtung 66 verschiebbar gehalten. Hierbei definiert der untere Schwenkzapfen 77 außerdem eine Schwenkachse, um die das Sauggehäuse 20 verschwenkt werden kann, da der obere Schwenkzapfen 75 in der Aussparung 82 des Tragebügels 12 frei bewegbar ist.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. Here, 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.
Um sicherzustellen, daß die Abstreiflippen 62 und 64 zusätzlich zu ihrer Anhebe- und AbSaugbewegung eine Schwenkbewegung innerhalb der Saugkanäle 46 bzw. 50 ausführen, sind an den Seitenwänden 24 und 25 jeweils zwei im wesentlichen parallel zur jeweils benachbarten Strömungsleitfläche 40 bzw. 41 ausgerichtete Führungsbahnen 92 bzw. 94 angeordnet. In den Führungsbahnen 92, 94 ist jeweils ein in der Zeichnung nicht dargestelltes Gleitelement verschiebbar gehalten, an welchem die Abstreiflippen 62 bzw. 64 angelenkt sind. Die Abstreif- lippen 62 und 64 werden somit in den Führungsbahnen 92 bzw. 94 zwangsgeführt, wobei die Ausrichtung der Führungsbahnen 92 und 94 schräg zur Vertikalen sicherstellt, daß die Abstreiflippen 62 und 64 zusätzlich zu ihrer Anhebe- und Absenkbewegung eine Verschwenkbewegung ausführen. Die Verschwenkbewegung erfolgt hierbei dergestalt, daß sich die Abstreiflippen 62 und 64 an die bezogen auf die Vorschubrichtung 66 hintere Begrenzung der Saugöffnungen 48 bzw. 52 anlegen, so daß die gesamte in den Saugöffnungen 48 und 52 wirksame Saugkraft unmittelbar vor den Abstreiflippen 62 bzw. 64 zur Entfaltung kommt. Dies hat zur Folge, daß der von den Abstreiflippen 62 und 64 hervorgerufene Abstreifeffekt erheblich verstärkt wird, so daß praktisch kein auf die Bodenfläche 28 aufgebrachtes Reinigungsmittel auf der Bodenfläche 28 verbleibt. In order to ensure that the wiper lips 62 and 64, in addition to their lifting and suction movement, perform a swiveling movement within the suction channels 46 and 50, on the side walls 24 and 25 there are two guide tracks 92 aligned essentially parallel to the respectively adjacent flow guide surface 40 and 41 or 94 arranged. In the guideways 92, 94, a sliding element, not shown in the drawing, is slidably held on which the wiper lips 62 and 64 are articulated. The wiper lips 62 and 64 are thus positively guided in the guideways 92 and 94, the alignment of the guideways 92 and 94 obliquely to the vertical ensuring that the wiper lips 62 and 64 perform a pivoting movement in addition to their lifting and lowering movement. 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.

Claims

P A T E N T A N S P R Ü C H E PATENT CLAIMS
1. Reinigungskopf für ein Bodenreinigungsgerät mit zumindest einer mit einem Reinigungsmittelvorrat verbindbaren Düse zum Aufbringen eines dampfförmigen oder flüssigen Reinigungsmittels auf eine zu reinigende Bodenfläche, und mit bezogen auf eine Vorschubbewegung des Reinigungskopfes vorderen und hinteren Saugöffnungen zur Aufnahme von Schmutz und aufgebrachtem Reinigungsmittel, wobei die Saugöffnungen über eine Saugleitung mit einem Saugaggregat verbindbar sind, sowie mit den Saugöffnungen zugeordneten vorderen und hinteren Abstreiflippen, die in Abhängigkeit von der Vorschubbewegung auf die Bodenfläche absenkbar und von der Bodenfläche anhebbar sind, dadurch gekennzeichnet, daß der Reinigungskopf (10) ein Sauggehäuse (20) umfaßt mit einem in die Saugöffnungen (48, 52) einmündenden Saugkanal (46, 50) sowie ein das Sauggehäuse (20) halterndes Trageteil (12), wobei das Sauggehäuse (20) gegenüber dem Trageteil (12) entgegen der Vorschubrichtung ( 66 ) verschiebbar ist und wobei der Reinigungskopf (10) Getriebemittel (70, 71, 75, 77) aufweist zur Umsetzung der Verschiebebewegung des Sauggehäuses (20) in eine Anhebe- und Absenkbewegung der Abstreiflippen (62, 64).1.Cleaning head for a floor cleaning device with at least one nozzle which 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, the suction openings Can be connected to a suction unit via a suction line, and to the front and rear wiper lips assigned to the suction openings, which can be lowered onto the floor surface and raised from the floor surface depending on the feed movement, characterized in that the cleaning head (10) has a suction housing (20). comprises a suction channel (46, 50) opening into the suction openings (48, 52) and a carrying part (12) holding the suction housing (20), the suction housing (20) being displaceable relative to the carrying part (12) against the feed direction (66) is t and wherein the cleaning head (10) has gear means (70, 71, 75, 77) for converting the displacement movement of the suction housing (20) into a lifting and lowering movement of the wiper lips (62, 64).
2. Reinigungskopf nach Anspruch 1, dadurch gekennzeichnet, daß die Getriebemittel zumindest ein in Abhängigkeit von der Verschiebebewegung des Saugge- häuses ( 20 ) um eine horizontale Schwenkachse verschwenkbares Schwenkelement (70, 71) umfassen.2. Cleaning head according to claim 1, characterized in that the gear means at least one depending on the displacement movement of the suction include housing (20) pivotable pivot element (70, 71) about a horizontal pivot axis.
3. Reinigungskopf nach Anspruch 2, dadurch gekennzeichnet, daß das Schwenkelement eine verschwenkbare Wippe (70, 71) umfaßt mit zwei Schwenkarmen (72, 73), an deren freien Enden die Abstreiflippen (62, 64) gehalten sind.3. Cleaning head according to claim 2, characterized in that the pivoting element comprises a pivotable rocker (70, 71) with two pivot arms (72, 73), at the free ends of which the wiping lips (62, 64) are held.
4. Reinigungskopf nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Getriebemittel zwei parallel zueinander ausgerichtete Wippen (70, 71) aufweisen, an deren freien Enden die Abstreiflippen (62, 64) gehalten sind.4. Cleaning head according to claim 2 or 3, characterized in that the gear means have two rockers (70, 71) aligned parallel to one another, at the free ends of which the wiping lips (62, 64) are held.
5. Reinigungskopf nach Anspruch 2, 3 oder 4, dadurch gekennzeichnet, daß das Schwenkelement (70, 71) mit einem Mitnehmer (77) in Eingriff steht, der das Schwenkelement (70, 71) in Abhängigkeit von der Verschiebebewegung des Sauggehäuses (20) verschwenkt.5. Cleaning head according to claim 2, 3 or 4, characterized in that the pivoting element (70, 71) is in engagement with a driver (77) which the pivoting element (70, 71) in dependence on the displacement movement of the suction housing (20) pivoted.
6. Reinigungskopf nach Anspruch 5, dadurch gekennzeichnet, daß das Schwenkelement (70, 71) am Sauggehäuse (20) gelagert ist und daß der Mitnehmer einen am Trageteil (12) gelagerten relativ zum Sauggehäuse (20) verschiebbaren Schwenkzapfen (77) umfaßt.6. Cleaning head according to claim 5, characterized in that the swivel element (70, 71) is mounted on the suction housing (20) and that the driver comprises a pivot pin (77) which is mounted on the support part (12) and which is displaceable relative to the suction housing (20).
7. Reinigungskopf nach Anspruch 5, dadurch gekennzeichnet, daß das Schwenkelement (70, 71) am Trage- teil (12) gehalten ist und daß der Mitnehmer einen am Sauggehäuse (20) gelagerten, relativ zum Trageteil (12) verschiebbaren Schwenkzapfen (75) umfaßt.7. Cleaning head according to claim 5, characterized in that the pivoting element (70, 71) on the carrying part (12) is held and that the driver comprises a pivot pin (75) mounted on the suction housing (20) and displaceable relative to the supporting part (12).
8. Reinigungskopf nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, daß der Reinigungskopf (10) zwei parallel zueinander ausgerichtete Schwenkzapfen (72, 74) umfaßt, an denen das Schwenkelement (70, 71) bewegbar gehalten ist, wobei die Lage zumindest eines Schwenkzapfens ( 77 ) relativ zum Schwenkelement (70, 71) in Abhängigkeit von der Verschiebebewegung des Sauggehäuses (20) veränderbar ist.8. Cleaning head according to one of claims 2 to 7, characterized in that the cleaning head (10) comprises two parallel pivot pins (72, 74) on which the pivot element (70, 71) is movably held, the position of at least one The pivot pin (77) can be changed relative to the pivot element (70, 71) as a function of the displacement movement of the suction housing (20).
9. Reinigungskopf nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Sauggehäuse ( 20) um eine horizontale Achse verschwenkbar am Trageteil (12) gehalten ist.9. Cleaning head according to one of the preceding claims, characterized in that the suction housing (20) is held on the supporting part (12) so as to be pivotable about a horizontal axis.
10. Reinigungskopf nach einem der_ voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Trageteil einen das Sauggehäuse (20) seitlich übergreifenden Tragebügel (12) ausbildet.10. Cleaning head according to one of the preceding claims, characterized in that the supporting part forms a support bracket (12) which laterally overlaps the suction housing (20).
11. Reinigungskopf nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Abstreif- lippen (62, 64) in Abhängigkeit von der Vorschubbewegung des Reinigungskopfes (10) um eine horizontale Schwenkachse verschwenkbar gehalten sind. 11. Cleaning head according to one of the preceding claims, characterized in that the stripping lips (62, 64) are held pivotably about a horizontal pivot axis in dependence on the feed movement of the cleaning head (10).
12. Reinigungskopf nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß der Reinigungskopf (10) Führungsbahnen (92, 94) umfaßt, in denen die Abstreiflippen (62, 64) verschiebbar und um eine horizontale Schwenkachse verschwenkbar gehalten sind.12. Cleaning head according to one of the preceding claims, characterized in that the cleaning head (10) comprises guideways (92, 94) in which the wiper lips (62, 64) are displaceable and pivotable about a horizontal pivot axis.
13. Reinigungskopf nach Anspruch 12, dadurch gekennzeichnet, daß die Abstreiflippen (62, 64) mit einem ersten Anlenkpunkt am Schwenkelement (70, 71) und mit einem zweiten Anlenkpunkt an einem in einer Führungsbahn (92, 94) verschieblich gehaltenen Gleitelement angelenkt sind.13. Cleaning head according to claim 12, characterized in that the wiper lips (62, 64) are articulated with a first articulation point on the pivoting element (70, 71) and with a second articulation point on a sliding element which is held displaceably in a guideway (92, 94).
14. Reinigungskopf nach Anspruch 11, 12 oder 13, dadurch gekennzeichnet, daß die Abstreiflippen (62, 64) innerhalb der Saugöffnung (48, 52) verschwenkbar gehalten sind.14. Cleaning head according to claim 11, 12 or 13, characterized in that the wiper lips (62, 64) within the suction opening (48, 52) are pivotally held.
15. Reinigungskopf nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Sauggehäuse (20) ein plattenförmiges Trägerelement (43) zur Fixierung eines Reinigungsbelages (44) aufnimmt, wobei das Trägerelement (43) an einem den Strömungskanal (46, 50) begrenzenden, lösbar mit dem Sauggehäuse (20) verbindbaren Strömungselement (37) lösbar gehalten ist. 15. Cleaning head according to one of the preceding claims, characterized in that the suction housing (20) receives a plate-shaped carrier element (43) for fixing a cleaning covering (44), the carrier element (43) delimiting the flow channel (46, 50), Flow element (37) which can be detachably connected to the suction housing (20) is detachably held.
16. Reinigungskopf nach Anspruch 15, dadurch gekennzeichnet, daß die Verbindung des Strömungselements (37) mit dem Sauggehäuse (20) erst nach Abtrennen des Trägerelements (43) vom Strömungselement (37) lösbar ist.16. Cleaning head according to claim 15, characterized in that the connection of the flow element (37) with the suction housing (20) can only be released after the carrier element (43) has been separated from the flow element (37).
17. Reinigungskopf nach Anspruch 15, dadurch gekennzeichnet, daß das Trägerelement (43) und das Strömungselement (37) mittels zumindest eines einstellbaren Schnellverbindungsgliedes (34, 35) am Sauggehäuse (20) gehalten sind, wobei das SchnellVerbindungsglied (34, 35) in einer ersten Stellung lediglich das Trägerelement (43 ) und bei vom Sauggehäuse (20) abgetrenntem Trägerelement (43) in einer zweiten Stellung das Strömungselement (37) freigibt. 17. Cleaning head according to claim 15, characterized in that the carrier element (43) and the flow element (37) by means of at least one adjustable quick connector (34, 35) on the suction housing (20) are held, wherein the quick connector (34, 35) in one In the first position, only the carrier element (43) and, when the carrier element (43) is separated from the suction housing (20), the flow element (37) is released in a second position.
EP01900147A 2000-01-29 2001-01-10 Cleaning head for a floor-cleaning device Expired - Lifetime EP1250079B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10003883 2000-01-29
DE10003883A DE10003883C1 (en) 2000-01-29 2000-01-29 Cleaning head for a floor cleaning device
PCT/EP2001/000218 WO2001054555A1 (en) 2000-01-29 2001-01-10 Cleaning head for a floor-cleaning device

Publications (2)

Publication Number Publication Date
EP1250079A1 true EP1250079A1 (en) 2002-10-23
EP1250079B1 EP1250079B1 (en) 2006-09-13

Family

ID=7629155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01900147A Expired - Lifetime EP1250079B1 (en) 2000-01-29 2001-01-10 Cleaning head for a floor-cleaning device

Country Status (7)

Country Link
EP (1) EP1250079B1 (en)
JP (1) JP2003525079A (en)
KR (1) KR20020077404A (en)
AT (1) ATE339148T1 (en)
AU (1) AU2001223735A1 (en)
DE (1) DE10003883C1 (en)
WO (1) WO2001054555A1 (en)

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CN113925384A (en) * 2020-07-13 2022-01-14 西安佳赢企业管理咨询有限公司 Scraping device and scraping assembly
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Also Published As

Publication number Publication date
KR20020077404A (en) 2002-10-11
JP2003525079A (en) 2003-08-26
WO2001054555A1 (en) 2001-08-02
EP1250079B1 (en) 2006-09-13
DE10003883C1 (en) 2001-08-30
ATE339148T1 (en) 2006-10-15
AU2001223735A1 (en) 2001-08-07

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