WO2001050935A1 - Vacuum cleaner comprising a dust collection chamber in the housing cover - Google Patents
Vacuum cleaner comprising a dust collection chamber in the housing cover Download PDFInfo
- Publication number
- WO2001050935A1 WO2001050935A1 PCT/EP2000/000308 EP0000308W WO0150935A1 WO 2001050935 A1 WO2001050935 A1 WO 2001050935A1 EP 0000308 W EP0000308 W EP 0000308W WO 0150935 A1 WO0150935 A1 WO 0150935A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- suction
- housing
- housing cover
- cleaning device
- chamber
- 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.)
- Ceased
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Classifications
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- 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
- A47L11/02—Floor surfacing or polishing machines
- A47L11/20—Floor surfacing or polishing machines combined with vacuum cleaning devices
- A47L11/204—Floor surfacing or polishing machines combined with vacuum cleaning devices having combined drive for brushes and for vacuum cleaning
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- 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
- A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
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- 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
- A47L11/4041—Roll shaped surface treating tools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—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
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- 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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
- A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- 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
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/12—Dry filters
- A47L9/122—Dry filters flat
-
- 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
- A47L9/22—Mountings for motor fan assemblies
Definitions
- the invention relates to a suction cleaning device with a suction fan according to the preamble of claim 1.
- suction cleaning devices via a suction slot the suction air flow generated by a suction fan enters a working chamber of a housing in which a cleaning roller, e.g. a brush roller, which is rotatingly driven.
- the suction air flow is led from the working chamber via an inflow channel into a dust collection chamber, in which a dust bag or the like is usually arranged for collecting and filtering out the dirt content from the suction air flow.
- the dust collection chamber is connected to the suction connection of the suction fan via an outflow channel, a housing cover having to be removed to empty the dust collection chamber.
- the invention has for its object to develop a suction cleaning device of the generic type in such a way that emptying of the dust collection chamber and maintenance of the flow connections to the suction fan is possible in a simple manner.
- the housing cover can be designed to close both the dust collecting chamber and the working chamber. After removing the housing cover, not only is the dust collection chamber accessible, but also the working chamber is open, so that the flow connections from the suction slot to the suction blower can be checked and cleaned for blockages in a simple manner.
- a partition between the dust collection chamber and the working chamber is preferably provided on the housing cover over at least part of its height, in particular over its entire height, and the inflow channel is held in the partition wall provided on the housing cover.
- This inflow channel protrudes into the dust collection chamber and serves as a carrier for a dust bag, which is thus held on the housing cover.
- the removed housing cover can be carried to the desired disposal location with the dust bag held on the inflow channel and only there can the dust bag be detached from the carrier. Unwanted dirt when changing the dust bag are thus avoided at the place of use of the suction cleaning device.
- the rear wall is also formed on the housing cover and the outflow channel is held in the rear wall provided on the housing cover, all the channels leading from the working chamber to the suction fan are freely accessible and easy to clean after removing the cover.
- the dust collecting chamber and the working chamber are largely completely formed in the housing cover and are closed from the bottom of the housing in the mounting position of the housing cover.
- the cover is removed, the lower part of the housing in the area between the suction slot and the suction fan has essentially no dividing walls, so that the cleaning roller and its drive are easily accessible.
- the flow cross section of the channels leading the suction air flow in the direction of flow of the suction air flow becomes larger.
- the effective inflow cross section in the area of the suction slot is smaller than the effective through flow cross section of the inflow channel into the dust collecting chamber.
- the effective outflow cross section of the outflow channel is in turn larger than the cross section of the inflow channel; the cross section of the exhaust air openings, via which the suction air flow is blown off as the exhaust air flow, is in turn larger than the effective cross section of the outflow channel between the dust collection chamber and the suction fan.
- the cleaning roller is a textile roller, in particular a textile roller with a low-pile textile cover.
- This roller is driven at a speed of about 2000 to 3000 rpm and ensures the loosening of baked-on dirt, emulsions or the like on hard coverings, e.g. Parquet, terracotta, tiles or the like ..
- FIG. 1 is a perspective view of the suction cleaning device according to the invention
- FIG. 2 shows a schematic section through the suction cleaning device according to the invention according to FIG. 1
- 3 shows a longitudinal section through the suction cleaning device according to FIG. 1 at the height of the suction nozzle of the suction fan
- FIG. 4 shows a longitudinal section through the suction cleaning device at the height of the engine compartment of the suction fan
- FIG. 5 is a perspective view of the suction cleaning device according to the invention according to FIG. 1 with the upper housing part and housing cover removed, with a schematic representation of the filter section,
- Fig. 6 in a perspective view of the
- FIG. 7 is a bottom view of the housing cover of FIG. 6 with the dust collection chamber
- FIG. 8 is a view of the housing cover according to FIG. 7 with filter elements arranged in the dust collection chamber
- Fig. 9 is an enlarged view of the
- FIG. 11 shows a perspective view of the upper housing part according to FIG. 10 with the cleaning roller arranged, pivoted into the working position
- 12 shows a representation according to FIG. 11 with the cleaning roller pivoted out into the maintenance position
- FIG. 13 is a perspective view of the pivoting arms pivoted out in the maintenance position
- FIG. 14 is a view of the suction cleaning device according to the invention with the lower housing part removed.
- the suction cleaning device 1 shown in the figures has a housing 2, which consists of a lower housing part 3, an upper housing part 4 and a housing cover 5.
- Rear rollers 6 are arranged on the lower housing part 3, between which a plug-in receptacle 7 for a guide shaft 8 or the like is provided in the lower housing part 3.
- the plug receptacle 7 - as shown in particular in FIGS. 2 and 10 - can be pivoted about a tilt axis 9 relative to the housing 1.
- the tilt axis 9 lies approximately parallel to the axes of rotation 10 of the rollers 6.
- the housing 1 has a roughly rectangular shape in plan view, the plug receptacle 7 and the rollers 6 being arranged on one narrow side of the housing 1.
- the suction housing 1 is supported by a cleaning roller 12 on the floor surface to be cleaned, the cleaning roller 12 - as also shown in FIGS. 2 to 5 - one in the area of the front narrow side 11 in the bottom 13 of the Provided through the housing 2 provided suction slot 14.
- the cleaning roller 12 is arranged inside the housing 2 in a working chamber 15 and - as shown in particular in FIG. 10 - is driven in rotation via a belt drive 16.
- the suction slot 14 penetrated by a partial circumference of the cleaning roller 12 stretches - cf. 10 - transversely to the longitudinal center axis 17 of the suction cleaning device near the front narrow side 11.
- the working chamber 15 with the cleaning roller 12 is adjacent to a dust collecting chamber 18 which extends over the entire width of the suction slot 14 in the housing 1.
- the dust collection chamber 18 is divided from the working chamber 15 by a partition 19, the partition 19 being provided on the housing cover 5 over a partial height, in the exemplary embodiment over its total height H.
- a rear wall 20 of the dust collection chamber 18 is formed on the housing cover.
- the rear wall 18 is also provided on the housing cover 5 over at least part of its height, according to the exemplary embodiment over its entire height R.
- an engine compartment 21 Adjacent to the rear narrow side, an engine compartment 21 is formed in the area of the rollers 6 in the lower housing part 3, in which the suction fan 22 of the suction cleaning device 1 is mounted.
- the engine compartment 21 - as also shown in FIGS. 5 and 10 - is shorter than the lower housing part 3 transversely to the longitudinal central axis 17.
- the housing wall 24 facing the suction slot 14 is extended beyond the engine compartment 21 and separates a functional space 23 in the lower housing part.
- One end wall 25 of the engine compartment 21, which is adjacent to the functional space 23, is penetrated by a suction connection 26 which is connected as a quarter-circle arc to a suction nozzle 27 which extends through the housing wall 24 at the height of the functional space 23.
- the suction nozzle 27 projects approximately perpendicular to the housing wall 24 on the side facing the suction slot 14 into the free space of the lower housing part 3.
- an inflow channel 28 is held in the partition 19 of the housing cover 5, which - as shown in FIG. 2 - lies above the cleaning roller 12 and preferably projects perpendicularly to the partition 19 into the dust collection chamber 18.
- a dust bag 31 can be plugged onto the cylindrical inflow channel 28 and, as shown, for example, in FIG. 5, extends the dust collecting chamber over its entire width measured transversely to the longitudinal central axis 17 and over a large part of the depth measured in the direction of the longitudinal central axis 17.
- the inflow channel 28 is preferably located centrally in the partition 19 at a greater distance from the housing base 13 than from the cover 5.
- an outflow channel 29 (FIGS. 6 to 9) is held, which extends from the rear wall 20 in the direction of the functional space 23 and in the mounting position of the housing cover 5 according to FIG Suction nozzle 27 of the suction fan 22 connects. According to the position of the suction port 27 fixed to the housing, the outflow channel 29 is laterally offset from the central inflow channel 28.
- the dust collection chamber 18 of the housing cover 5 is delimited by side walls 34 which lie within the housing 2.
- the side walls 34 connect the rear wall 20 to the partition 19; the height H of the partition 19, the height R of the rear wall 20 and the height S of the side walls 34 correspond to one another, as a result of which the dust-collecting chamber 18 has an edge 33 running around the same height.
- the filter frames 36 serve as a carrier for a filter element 37, which can consist of expanded metal or the like.
- the filter element 37 extends approximately parallel to the rear wall 20 essentially over its entire surface.
- the suction air 30 flowing out of the dust collection chamber can be filtered by means of an electrostatic filter 38, which - as shown in FIG. 2 as an example - can lie between two filter elements 37 made of expanded metal arranged one behind the other in the flow direction.
- the housing cover 5 has locking bars 40 which engage in corresponding locking recesses 41 in the upper housing part 4.
- the upper housing part 4 covers the engine compartment 21 and the functional compartment 23.
- the upper housing part 4 adjoins the walls 25 and 42 of the engine compartment 21 in an essentially airtight manner, the upper edge 44 of the housing wall 24 lies at a distance from the upper housing portion 4, so that a flow slot 43 is formed over the entire length of the engine compartment 21 measured transversely to the longitudinal central axis 17 ,
- the upper housing part 4 overlaps the edge 44 with an apron 45 which extends parallel to the housing wall 24 outside the engine compartment 21 up to approximately half the height of the housing wall 24.
- a slot-shaped exhaust air duct 46 is formed between the housing wall 24 and the apron 45 and extends over the entire length of the flow slot 43.
- the exhaust air duct 46 connects the engine compartment 21 to a blow-out space 47, which is formed between the rear wall 20 of the dust collection chamber 18 in the housing cover 5 and the housing wall 24.
- the blow-out space 47 extends transversely to the longitudinal center axis 17 over the entire width of the housing 1 and is closed by a lid edge 48 which has a plurality of blow-out openings 49.
- the blow-out openings 49 extend over the entire width of the cover 5, measured transversely to the longitudinal central axis 17, and extend into the cover side wall 50, which ends with the lower housing part 3.
- the lid edge 48 projecting beyond the rear wall 20 of the dust collection chamber 18 delimits, with the lid side walls 50 and the lid rear wall 39, a filter chamber 51 (FIG. 9) open to the blow-out chamber 47, in which a filter fleece, filter wool or the like is arranged as a blow-out filter 52.
- the blow-out filter 52 completely fills the filter space 51 and completely covers the blow-out openings 49.
- the housing cover 5 After the housing cover 5 is inserted with its locking strips 40 in the locking grooves 41 of the upper housing part 4, the housing cover 5 with the dust bag 31 arranged therein and the desired filter elements 37 and 38 is pivoted against the directional arrow 94 onto the lower housing part, the edge 33 of the dust collecting chamber 18 comes to rest on a sealing plate 53 which is fixed to the housing base 2.
- the edge 33 engages here - cf. Fig. 4 - in a groove 54 of the sealing plate 53 of the housing base 13, whereby the dust collection chamber is sealed airtight relative to the housing.
- the lid rear wall 39 lies against the apron 45 of the upper housing part 4 essentially airtight, as a result of which the blow-out space 47 is limited between the rear wall 20, the bottom 13 of the housing 2 and the housing wall 24.
- the blow-out space 47 with the motor is connected via the exhaust air duct 46 and the flow slot 43.
- Torraum 21 connected, which is used as an anteroom for the suction air stream emerging as exhaust air flow 55.
- the exhaust air flow 55 is deflected on its way out of the engine compartment 21 to the exhaust openings 49 over approximately 270 °.
- there is a first 90 ° deflection when passing through the flow slot 43 into the exhaust air duct 46.
- the exhaust air flow 55 is again diverted by 180 "in the direction of the blow-out openings 49 provided in the housing cover 5.
- the cleaning roller 12 arranged above the suction slot 14 extends through the suction slot 14 over a partial circumference and lies on the floor surface to be cleaned.
- the cleaning roller 12 is designed as a textile roller and carries on its roller body 56 a fabric 57 with a low pile, e.g. a pile of irregularly standing fibers such as synthetic fibers.
- the entry surface of the suction slot 14 is essentially limited by the cleaning roller 12 to a narrow frame 58, as shown in broken lines in FIG. 10. This small entry area causes a high air flow in the area of the cleaning roller, so that the dirt particles, fluff or the like lying on a hard floor are detected and sucked in over a large effective range.
- the low-pile textile fabric 57 on the brush body 56 dried dirt, dirt emulsions or the like located on the hard floor is loosened and likewise removed with the suction air flow.
- the suction air stream 30 enters the dust bag 31 of the dust collecting chamber 18 from the working chamber 15 via the inflow channel 28, the flow cross section Q of the inflow channel 28 being larger than the flow cross section of the between cleaning roller 12 and the edge of the suction slot 14 limited entry area.
- the flow cross section thus becomes larger in the flow direction of the suction air flow 30;
- the outflow channel 29 in the rear wall 20 of the dust collection chamber 18 is designed with a larger cross section A than the cross section Q of the inflow channel 28.
- the suction port 27 of the suction connection 26 connects to the cylindrical outflow channel 29 with approximately the same dimensions.
- the suction air stream 30 now emerges as an exhaust air stream in the engine compartment 21, the cross section V of the flow slot 43 in turn being larger than the flow cross section A of the outflow channel 21.
- the latter exits into the blow-out space 47, which passes through the blow-out openings 49 to the surroundings is vented.
- the blow-out openings 49 have in total an outlet cross-section, which in turn is larger than the flow cross-section V of the outlet slit 43. This ensures that there is a flow velocity of the air of approximately 32 m / sec in the area of the suction slit 14 and that in the area of the blow-out openings 49 escaping air has a flow speed of only 3 to 5 m / sec, an enormous pressure drop is achieved via the flow path due to the continuously expanding flow cross-section, which on the one hand ensures safe storage of the carried dirt particles in the dust bag 31 and on the other hand ensures that the blown-out air does not lead to an undesirable swirling of the dust particles in the room to be cleaned.
- the housing cover 5 Since the working chamber 15, the dust collection chamber 18 and the suction air filters and exhaust air filters provided for the gradual cleaning of the air flow are all arranged in the housing cover 5, these are after opening the housing cover easily accessible. To open the housing cover, only two locking tongues 60 have to be pushed back, which are locked in locking openings 59 in the cover side walls 50. Opening and closing the housing cover for easy access to the dust bag, the filter and not least the cleaning roller 12 is easily possible by opening the snap connection 61 in the region of the front narrow side 11 of the housing 2.
- the cleaning roller 12 - as shown in particular in FIGS. 10 to 13 - is rotatably held at its ends on pivot arms 65 and 66.
- the pivot arms 65 and 66 can be pivoted about a common pivot axis 64 from a working position according to FIG. 11 into a maintenance position according to FIG. 12.
- the axis of rotation 63 of the cleaning roller lies above the suction slot 14, the cleaning roller 12 with its textile covering 57 projecting through the suction slot 14.
- the cleaning roller 12 is pivoted into the lower housing part 3 outside the suction slot 14, whereby it protrudes beyond the side walls 67 sloping towards the front end face 11 for easy access.
- the pivot axis 64 lies - in plan view according to FIG. 10 - between the axis of rotation 63 of the cleaning roller 12 and the axis of rotation 62 of a drive shaft 68 of the belt drive 16, that is to say approximately parallel to the cleaning roller.
- the belt drive 16 is divided by an intermediate gear 70, which consists of an input disk 71 with a larger diameter and an output disk 72 with a smaller diameter, which are arranged on a common shaft 69 in a rotationally fixed manner.
- the intermediate gear 70 is at a greater distance al to the axis of rotation 62 of the drive shaft 68 as the distance a2 to the axis of rotation 63 of the cleaning roller 63.
- the speed-reducing intermediate gear 70 is connected via a longer belt 73 to the drive pulley 75 on the drive shaft 68, the drive shaft 68 of the belt drive 16 being a secondary drive of the suction fan.
- the drive shaft 68 preferably corresponds to the shaft of the suction fan itself.
- the small-diameter driven pulley 72 of the speed-reducing intermediate gear 70 is connected to the drive pulley 76 of the cleaning roller 12 via a shorter belt 74.
- the drive pulley 76 is connected in a rotationally fixed manner to the roller body 56.
- the belt 74 connecting the intermediate gear 70 to the cleaning roller 12 is weaker than the belt 73 connecting the intermediate gear 70 to the drive shaft 68. This ensures that in the event of an overload, the shorter belt 74 breaks, which due to the pivoting out of the cleaning roller 12 by the Pivot axis 64 is easy to replace.
- the pivot axis 64 of the pivot arms 65 and 66 is expediently the shaft axis 77 of the intermediate gear 70.
- the direction of rotation 78 of the disks 71 and 72 of the intermediate gear 70 is provided such that the pivot arm 66 in the direction of arrow 79 in the direction of the working position according to FIG. 11 is loaded with torque is. This ensures that, even at higher torques, the swivel torque generated by the drive on the cleaning roller 12 is such that it stabilizes the working position of the cleaning roller 12 in the suction slot 14.
- One of the swivel arms 65 preferably both swivel arms 65 and 66, is acted upon by a spring 80 or another suitable device in the direction of the maintenance position according to FIG. 12.
- a spring 80 or another suitable device in the direction of the maintenance position according to FIG. 12.
- the cleaning roller 12 automatically pivots from the working position according to FIG. 11 into the maintenance position according to FIG. 12.
- the cleaning roller 12 is easy to maintain, in particular easy to replace.
- a pivot pin 81 of the drive disk 76 rotatably held on the swivel arm 66 engages on the end face and in a rotationally fixed manner in the roller body 56; at the other end, the roller body is rotatably held by the engagement of a cylindrical pin 82.
- the housing cover 5 with its locking strips 40 is inserted into the locking recesses 41 of the housing upper part 4 and pivoted in the direction of the housing base 13, hold-down devices 83 and 84 provided in the cover 5 engage the pivoting arms 65 and 66 and press it to pivot in the direction of arrow 79 in the direction of the working position according to FIG. 11.
- the one hold-down device 83 which is assigned to the pivot arm 65, is designed as a wall extension provided in the plane of the partition 19, which is at about half the height on the pivot arm 65 attacks.
- the swivel arm 65 lies in a fork 85 fixed to the housing and is thus fixed in its position.
- the hold-down device 84 which is assigned to the swivel arm 66 provided with the drive disk 76, consists of a partial wall 87 lying in the extension of the side wall 34, which limits the working space 15 transversely to the longitudinal central axis 17 of the housing 2.
- a fork 86 provided on the housing cover is provided in the region of the part wall 87, which fork is effective when the housing cover 5 is pivoted in and pivots the pivot arm 66 in the direction of a part wall 88 fixed to the housing, which cooperates with the hold-down device 84 as a counter-holder 89.
- a part 91 and 92 of a bearing opening 90 is formed, which is penetrated by the pivot 81.
- the partial walls 87 and 88 delimit the suction slot 14 at one end transversely to the longitudinal central axis 17, with a between the partial walls 87 and 88 and the side walls 67 of the lower housing part 3 or the cover side walls 50 and the side walls 34 of the dust collection chamber 18 and the walls of the engine compartment 21 Installation space 93 for the belt drive is limited.
- the cover can be pivoted up and removed in the opening direction according to arrow 94 in FIG. 1 around the locking strips 40 located in the locking recesses.
- the housing cover 5 is thus separated from the basic housing 3 and the upper housing part 4, and the elements arranged in it are easily accessible.
- the cleaning roller 12 is automatically pivoted up by a spring force from the working position in FIG. 11 to the maintenance position in FIG. 12, so that the cleaning roller is freely accessible for maintenance work.
- the cleaning roller 12 is easy to remove by pulling off the pivot of the pivot arms.
- the housing cover 5 forms the dust collector with all the receptacles for the filters to be arranged optionally.
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Abstract
Description
Saugreinigungsgerat mit einer Staubsammelkammer im Gehäusedeckel Vacuum cleaning device with a dust collection chamber in the housing cover
Die Erfindung betrifft ein Saugreinigungsgerat mit einem Sauggebläse nach dem Oberbegriff des Anspruchs 1.The invention relates to a suction cleaning device with a suction fan according to the preamble of claim 1.
Derartige Saugreinigungsgeräte sind an sich bekannt, über einen Saugschlitz tritt der von einem Sauggebläse erzeugte Saugluftstrom in eine Arbeitskammer eines Gehäuses ein, in der eine Reinigungswalze, z.B. eine Bürstenwalze, rotierend angetrieben gelagert ist. Der Saugluftstrom wird aus der Arbeitskammer über einen Zuströmkanal in eine Staubsammelkammer geführt, in der meist ein Staubbeutel oder dgl. zum Sammeln und Ausfiltern des Schmutzanteils aus dem Saugluftstrom angeordnet ist. Die Staubsammelkammer ist über einen Abströmkanal mit dem Sauganschluß des Sauggebläses verbunden, wobei zum Leeren der Staubsammelkammer ein Gehäusedeckel abzunehmen ist.Such suction cleaning devices are known per se, via a suction slot the suction air flow generated by a suction fan enters a working chamber of a housing in which a cleaning roller, e.g. a brush roller, which is rotatingly driven. The suction air flow is led from the working chamber via an inflow channel into a dust collection chamber, in which a dust bag or the like is usually arranged for collecting and filtering out the dirt content from the suction air flow. The dust collection chamber is connected to the suction connection of the suction fan via an outflow channel, a housing cover having to be removed to empty the dust collection chamber.
Der Austausch des Staubbeutels in der Staubsammelkammer ist oft umständlich; Verstopfungen im Bereich zwischen der Arbeitskammer und der Staubsammelkammer erfordern meist zusätzliche Demontagearbeiten. Darüber hinaus ist der als Abluftstrom abgeführte Saugluftstrom noch mit erheblichen Schmutzpartikeln belastet. Zwar ist bekannt, hierzu zusätzlich Abluftfilter anzuordnen; diese sind in bekannten Saug- reinigungsgeräten aber an unterschiedlichen Stellen angeordnet, schwer zu warten und umständlich auszutauschen.Replacing the dust bag in the dust collection chamber is often cumbersome; Blockages in the area between the working chamber and the dust collecting chamber usually require additional dismantling work. In addition, the suction air stream discharged as an exhaust air stream is still contaminated with considerable dirt particles. It is known to additionally arrange exhaust air filters for this purpose; these are in known suction cleaning devices but arranged in different places, difficult to maintain and cumbersome to replace.
Der Erfindung liegt die Aufgabe zugrunde, ein Saugreinigungsgerat der gattungsgemäßen Art derart weiterzubilden, daß in einfacher Weise ein Leeren der Staubsammelkammer und ein Warten der Strömungsverbindungen zum Sauggebläse möglich ist.The invention has for its object to develop a suction cleaning device of the generic type in such a way that emptying of the dust collection chamber and maintenance of the flow connections to the suction fan is possible in a simple manner.
Die Aufgabe wird erfindungsgemäß nach den kennzeichnenden Merkmalen des Anspruchs 1 gelöst.The object is achieved according to the characterizing features of claim 1.
Da die Arbeitskammer und die Staubsammelkammer benachbart liegen und etwa zur gleichen Seite offen sind, kann der Gehäusedeckel zum gemeinsamen Verschließen sowohl der Staubsammelkammer als auch der Arbeitskammer ausgebildet werden. Nach dem Abnehmen des Gehäusedeckels ist somit nicht nur die Staubsammelkammer zugänglich, sondern auch die Arbeitskammer offen, so daß die Strömungsverbindungen vom Saugschlitz zum Sauggebläse in einfacher Weise auf Verstopfungen überprüft und gereinigt werden können.Since the working chamber and the dust collecting chamber are adjacent and are open on approximately the same side, the housing cover can be designed to close both the dust collecting chamber and the working chamber. After removing the housing cover, not only is the dust collection chamber accessible, but also the working chamber is open, so that the flow connections from the suction slot to the suction blower can be checked and cleaned for blockages in a simple manner.
Bevorzugt ist eine Trennwand zwischen der Staubsammelkammer und der Arbeitskammer über zumindest einen Teil ihrer Höhe, insbesondere über ihre gesamte Höhe, am Gehäusedeckel vorgesehen und der Zuströmkanal in der am Gehäusedeckel vorgesehenen Trennwand gehalten. Dieser Zuströmkanal ragt in die Staubsammelkammer ein und dient als Träger für einen Staubbeutel, der somit am Gehäusedeckel gehalten ist. Der abgenommene Gehäusedeckel kann mit dem am Zuströmkanal gehalterten Staubbeutel an den gewünschten Entsorgungsort getragen und erst dort der Staubbeutel vom Träger gelöst werden. Unerwünschte Verschmutzungen beim Wechseln des Staubbeutels am Einsatzort des Saugreinigungsgerätes sind somit vermieden.A partition between the dust collection chamber and the working chamber is preferably provided on the housing cover over at least part of its height, in particular over its entire height, and the inflow channel is held in the partition wall provided on the housing cover. This inflow channel protrudes into the dust collection chamber and serves as a carrier for a dust bag, which is thus held on the housing cover. The removed housing cover can be carried to the desired disposal location with the dust bag held on the inflow channel and only there can the dust bag be detached from the carrier. Unwanted dirt when changing the dust bag are thus avoided at the place of use of the suction cleaning device.
Wird auch die Rückwand am Gehäusedeckel ausgebildet und der Abströmkanal in der am Gehäusedeckel vorgesehenen Rückwand gehalten, sind am Deckel alle von der Arbeitskammer zum Sauggebläse geführten Kanäle nach Abnahme des Deckels frei zugänglich und leicht zu reinigen.If the rear wall is also formed on the housing cover and the outflow channel is held in the rear wall provided on the housing cover, all the channels leading from the working chamber to the suction fan are freely accessible and easy to clean after removing the cover.
In bevorzugter Ausbildung sind die Staubsammelkammer und die Arbeitskammer weitgehend vollständig im Gehäusedeckel ausgebildet und in der Montagestellung des Gehäusedeckels vom Boden des Gehäuses verschlossen. Bei abgenommenem Deckel weist somit das Gehäuseunterteil in dem Bereich zwischen Saugschlitz und Sauggebläse im wesentlichen keine Trennwände auf, so daß eine leichte Zugänglichkeit zur Reinigungswalze und deren Antrieb gegeben ist.In a preferred embodiment, the dust collecting chamber and the working chamber are largely completely formed in the housing cover and are closed from the bottom of the housing in the mounting position of the housing cover. When the cover is removed, the lower part of the housing in the area between the suction slot and the suction fan has essentially no dividing walls, so that the cleaning roller and its drive are easily accessible.
Um die Abluft durch zweckmäßige Filter in einfacher Weise zu reinigen, ist vorgesehen, in der Staubsammelkammer zwischen dem Staubbeutel und der Rückwand Einschubleisten zur Halterung von Filterrahmen vorzusehen, die in ihren Abmessungen denen der Rückwand der Staubsammelkammer entsprechen. Daher entspricht ein im Filterrahmen gehaltenes Filterelement von der Filterfläche etwa der Fläche der Rückwand der Staubsammelkammer. Auf diese Weise steht eine große Filterfläche zur Verfügung, wobei aufgrund des zwischen Filterelement und Rückwand der Staubsammelkammer gebildeten Strömungsraumes eine gleichmäßige Unterdruckbeaufschlagung eines in der Staubsammelkammer angeordneten Staubbeutels gewährleistet ist.In order to clean the exhaust air by appropriate filters in a simple manner, it is provided to provide slide-in strips in the dust collection chamber between the dust bag and the rear wall for holding filter frames, the dimensions of which correspond to those of the rear wall of the dust collection chamber. Therefore, a filter element held in the filter frame corresponds approximately to the surface of the rear wall of the dust collection chamber. In this way, a large filter area is available, and because of the flow space formed between the filter element and the rear wall of the dust collection chamber, a uniform vacuum pressure is ensured on a dust bag arranged in the dust collection chamber.
Besonders hervorzuheben ist, daß der Strömungsquerschnitt der den Saugluftstrom führenden Kanäle in Strömungsrichtung des Saugluftstroms größer wird. Dies bedeutet, daß der wirksame Einströmquerschnitt im Bereich des Saugschlitzes kleiner ist als der wirksame Durchströmquerschnitt des Zuströmkanals in die Staubsammelkammer. Der wirksame Abströmquerschnitt des Abströmkanals ist wiederum größer als der Querschnitt des Zuströmkanals; der Querschnitt der Abluft- Öffnungen, über die der Saugluftstrom als Abluftstrom abgeblasen wird, ist wiederum größer als der wirksame Querschnitt des Abströmkanals zwischen Staubsammelkammer und Sauggebläse. Auf diese Weise wird erreicht, daß im Bereich des Saugschlitzes eine hohe Einströmgeschwindigkeit der Luft gegeben ist, während im Bereich der Ausblasöffnungen die Ausblasgeschwindigkeit der Luft um etwa das Zehnfache gesenkt ist.It should be particularly emphasized that the flow cross section of the channels leading the suction air flow in the direction of flow of the suction air flow becomes larger. This means that the effective inflow cross section in the area of the suction slot is smaller than the effective through flow cross section of the inflow channel into the dust collecting chamber. The effective outflow cross section of the outflow channel is in turn larger than the cross section of the inflow channel; the cross section of the exhaust air openings, via which the suction air flow is blown off as the exhaust air flow, is in turn larger than the effective cross section of the outflow channel between the dust collection chamber and the suction fan. In this way it is achieved that in the area of the suction slot there is a high inflow speed of the air, while in the area of the blow-out openings the blow-out speed of the air is reduced by about ten times.
In besonderer Weiterbildung der Erfindung ist die Reinigungswalze eine Textilwalze, insbesondere eine Textilwalze mit einem niederflorigen Textilbezug. Diese Walze wird mit einer Drehzahl von etwa 2000 bis 3000 U/min angetrieben und gewährleistet in einfacher Weise das Lösen von angebackenem Schmutz, Emulsionen oder dgl. auf Hartbelägen, z.B. Parkett, Terrakotta, Kacheln oder dgl..In a special development of the invention, the cleaning roller is a textile roller, in particular a textile roller with a low-pile textile cover. This roller is driven at a speed of about 2000 to 3000 rpm and ensures the loosening of baked-on dirt, emulsions or the like on hard coverings, e.g. Parquet, terracotta, tiles or the like ..
Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und der Zeichnung, in der ein nachfolgend im einzelnen beschriebenes Ausführungsbeispiel der Erfindung dargestellt ist. Es zeigen:Further features of the invention result from the further claims, the description and the drawing, in which an embodiment of the invention described in detail below is shown. Show it:
Fig. 1 eine perspektivische Ansicht auf das erfindungsgemäße Saugreinigungsgerat,1 is a perspective view of the suction cleaning device according to the invention,
Fig. 2 einen schematischen Schnitt durch das erfindungsgemäße Saugreinigungsgerat nach Fig. 1, Fig. 3 einen Längsschnitt durch das Saugreinigungsgerat nach Fig. 1 in der Höhe des Saugstutzens des Sauggebläses,2 shows a schematic section through the suction cleaning device according to the invention according to FIG. 1, 3 shows a longitudinal section through the suction cleaning device according to FIG. 1 at the height of the suction nozzle of the suction fan,
Fig. 4 einen Längsschnitt durch das Saugreinigungsgerat in der Höhe des Motorraums des Sauggebläses,4 shows a longitudinal section through the suction cleaning device at the height of the engine compartment of the suction fan,
Fig. 5 in perspektivischer Darstellung das erfindungsgemäße Saugreinigungsgerat nach Fig. 1 bei abgenommenem Gehäuseoberteil und Gehäusedeckel mit schema- tischer Darstellung der Filterstrecke,5 is a perspective view of the suction cleaning device according to the invention according to FIG. 1 with the upper housing part and housing cover removed, with a schematic representation of the filter section,
Fig. 6 in perspektivischer Darstellung der alsFig. 6 in a perspective view of the
Staubsammelbehälter ausgebildete Gehäusedeckel des Saugreinigungsgerätes nach Fig. 1,Dust collecting container-formed housing cover of the suction cleaning device according to FIG. 1,
Fig. 7 eine Ansicht von unten auf den Gehäusedeckel nach Fig. 6 mit der Staubsammelkammer,7 is a bottom view of the housing cover of FIG. 6 with the dust collection chamber,
Fig. 8 eine Ansicht auf den Gehäusedeckel gemäß Fig. 7 mit in der Staubsammelkammer angeordneten Filterelementen,8 is a view of the housing cover according to FIG. 7 with filter elements arranged in the dust collection chamber,
Fig. 9 in vergrößerter Darstellung eine Ansicht auf dieFig. 9 is an enlarged view of the
Rückwand der Staubsammelkammer im Gehäusedeckel mit im Gehäusedeckel angeordneter Abluftöffnung und Filterraum,Rear wall of the dust collection chamber in the housing cover with the exhaust air opening and filter chamber arranged in the housing cover,
Fig. 10 eine Draufsicht auf das Gehäuseunterteil bei abgenommenem Gehäusedeckel und Gehäuseoberteil,10 is a plan view of the lower housing part with the housing cover and upper housing part removed,
Fig. 11 eine perspektivische Ansicht auf das Gehäuseoberteil nach Fig. 10 mit angeordneter, in Arbeitsposition eingeschwenkter Reinigungswalze, Fig. 12 eine Darstellung gemäß Fig. 11 mit in Wartungsposition ausgeschwenkter Reinigungswalze,11 shows a perspective view of the upper housing part according to FIG. 10 with the cleaning roller arranged, pivoted into the working position, 12 shows a representation according to FIG. 11 with the cleaning roller pivoted out into the maintenance position,
Fig. 13 eine perspektivische Ansicht auf die in Wartungsposition ausgeschwenkten Verschwenkarme,13 is a perspective view of the pivoting arms pivoted out in the maintenance position,
Fig. 14 eine Ansicht auf das Erfindungsgemäße Saugreinigungsgerat bei entferntem Gehäuseunterteil.14 is a view of the suction cleaning device according to the invention with the lower housing part removed.
Das in den Figuren dargestellte Saugreinigungsgerat 1 weist ein Gehäuse 2 auf, welches aus einem Gehäuseunterteil 3, einem Gehäuseoberteil 4 und einem Gehäusedeckel 5 besteht. Am Gehäuseunterteil 3 sind hintere Laufrollen 6 angeordnet, zwischen denen im Gehäuseunterteil 3 eine Steckaufnahme 7 für einen Führungsstiel 8 oder dgl. vorgesehen ist. Die Steckaufnahme 7 ist - wie insbesondere die Fig. 2 und 10 zeigen - um eine Kippachse 9 relativ zum Gehäuse 1 verschwenkbar. Die Kippachse 9 liegt etwa parallel zu den Drehachsen 10 der Laufrollen 6.The suction cleaning device 1 shown in the figures has a housing 2, which consists of a lower housing part 3, an upper housing part 4 and a housing cover 5. Rear rollers 6 are arranged on the lower housing part 3, between which a plug-in receptacle 7 for a guide shaft 8 or the like is provided in the lower housing part 3. The plug receptacle 7 - as shown in particular in FIGS. 2 and 10 - can be pivoted about a tilt axis 9 relative to the housing 1. The tilt axis 9 lies approximately parallel to the axes of rotation 10 of the rollers 6.
Das Gehäuse 1 hat in Draufsicht etwa rechteckför ige Grundform, wobei die Steckaufnahme 7 und die Laufrollen 6 auf der einen Schmalseite des Gehäuses 1 angeordnet sind. Im Bereich der anderen, vorderen Schmalseite 11 stützt sich das Sauggehäuse 1 mittels einer Reinigungswalze 12 auf der zu reinigenden Bodenfläche ab, wobei die Reinigungswalze 12 - wie auch die Fig. 2 bis 5 zeigen - einen im Bereich der vorderen Schmalseite 11 im Boden 13 des Gehäuses 2 vorgesehenen Saugschlitz 14 durchragt. Die Reinigungswalze 12 ist innerhalb des Gehäuses 2 in einer Arbeitskammer 15 angeordnet und - wie insbesondere Fig. 10 zeigt - über einen Riementrieb 16 rotierend angetrieben. Der von einem Teilumfang der Reinigungswalze 12 durchragte Saugschlitz 14 er- streckt sich - vgl. Fig. 10 - quer zur Längsmittelachse 17 des Saugreinigungsgerätes nahe der vorderen Schmalseite 11.The housing 1 has a roughly rectangular shape in plan view, the plug receptacle 7 and the rollers 6 being arranged on one narrow side of the housing 1. In the area of the other, front narrow side 11, the suction housing 1 is supported by a cleaning roller 12 on the floor surface to be cleaned, the cleaning roller 12 - as also shown in FIGS. 2 to 5 - one in the area of the front narrow side 11 in the bottom 13 of the Provided through the housing 2 provided suction slot 14. The cleaning roller 12 is arranged inside the housing 2 in a working chamber 15 and - as shown in particular in FIG. 10 - is driven in rotation via a belt drive 16. The suction slot 14 penetrated by a partial circumference of the cleaning roller 12 stretches - cf. 10 - transversely to the longitudinal center axis 17 of the suction cleaning device near the front narrow side 11.
Der Arbeitskammer 15 mit der Reinigungswalze 12 liegt benachbart eine Staubsammelkammer 18, die sich über die gesamte Breite des Saugschlitzes 14 im Gehäuse 1 erstreckt. Die Staubsammelkammer 18 ist von der Arbeitskammer 15 durch eine Trennwand 19 geteilt, wobei die Trennwand 19 über eine Teilhöhe, im Ausführungsbeispiel über ihre Gesamthöhe H, am Gehäusedeckel 5 vorgesehen. In gleicher Weise ist - wie insbesondere auch die Fig. 3 und 4 zeigen - eine Rückwand 20 der Staubsammelkammer 18 am Gehäusedeckel ausgebildet. Auch die Rückwand 18 ist über zumindest einen Teil ihrer Höhe, gemäß Ausführungsbeispiel über ihre gesamte Höhe R, am Gehäusedeckel 5 vorgesehen.The working chamber 15 with the cleaning roller 12 is adjacent to a dust collecting chamber 18 which extends over the entire width of the suction slot 14 in the housing 1. The dust collection chamber 18 is divided from the working chamber 15 by a partition 19, the partition 19 being provided on the housing cover 5 over a partial height, in the exemplary embodiment over its total height H. In the same way - as shown in particular in FIGS. 3 and 4 - a rear wall 20 of the dust collection chamber 18 is formed on the housing cover. The rear wall 18 is also provided on the housing cover 5 over at least part of its height, according to the exemplary embodiment over its entire height R.
Benachbart zur hinteren Schmalseite ist im Bereich der Laufrollen 6 im Gehäuseunterteil 3 ein Motorraum 21 ausgebildet, in dem das Sauggebläse 22 des Saugreinigungsgerätes 1 montiert ist. Der Motorraum 21 ist - wie auch die Fig. 5 und 10 zeigen - quer zur Längsmittelachse 17 kürzer als das Gehäuseunterteil 3 ausgebildet. Die dem Saugschlitz 14 zugewandt liegende Gehäusewand 24 ist über den Motorraum 21 hinaus verlängert und trennt im Gehäuseunterteil einen Funktionsraum 23 ab. Die eine, dem Funktionsraum 23 benachbarte Stirnwand 25 des Motorraums 21 ist von einem Sauganschluß 26 durchragt, der als Viertelkreisbogen mit einem Saugstutzen 27 in Verbindung steht, welcher in Höhe des Funktionsraums 23 die Gehäusewand 24 durchragt. Der Saugstutzen 27 ragt etwa senkrecht zur Gehäusewand 24 auf der dem Saugschlitz 14 zugewandten Seite in den Freiraum des Gehäuseunterteils 3 ein. Zur Führung des Saugluftstroms 30 ist in der Trennwand 19 des Gehäusedeckels 5 ein Zuströmkanal 28 gehalten, der - wie Fig. 2 zeigt - oberhalb der Reinigungswalze 12 liegt und vorzugsweise senkrecht zur Trennwand 19 in die Staubsammelkammer 18 einragt. Auf den zylindrischen Zuströmkanal 28 kann ein Staubbeutel 31 aufgesteckt sein, der - wie z.B. Fig. 5 zeigt - die Staubsammelkammer über ihre gesamte quer zur Längsmittelachse 17 gemessene Breite und über einen Großteil der in Richtung der Längsmittelachse 17 gemessene Tiefe reicht. Der Zuströmkanal 28 liegt bevorzugt zentral in der Trennwand 19 mit größerem Abstand zum Gehäuseboden 13 als zum Deckel 5.Adjacent to the rear narrow side, an engine compartment 21 is formed in the area of the rollers 6 in the lower housing part 3, in which the suction fan 22 of the suction cleaning device 1 is mounted. The engine compartment 21 - as also shown in FIGS. 5 and 10 - is shorter than the lower housing part 3 transversely to the longitudinal central axis 17. The housing wall 24 facing the suction slot 14 is extended beyond the engine compartment 21 and separates a functional space 23 in the lower housing part. One end wall 25 of the engine compartment 21, which is adjacent to the functional space 23, is penetrated by a suction connection 26 which is connected as a quarter-circle arc to a suction nozzle 27 which extends through the housing wall 24 at the height of the functional space 23. The suction nozzle 27 projects approximately perpendicular to the housing wall 24 on the side facing the suction slot 14 into the free space of the lower housing part 3. To guide the suction air flow 30, an inflow channel 28 is held in the partition 19 of the housing cover 5, which - as shown in FIG. 2 - lies above the cleaning roller 12 and preferably projects perpendicularly to the partition 19 into the dust collection chamber 18. A dust bag 31 can be plugged onto the cylindrical inflow channel 28 and, as shown, for example, in FIG. 5, extends the dust collecting chamber over its entire width measured transversely to the longitudinal central axis 17 and over a large part of the depth measured in the direction of the longitudinal central axis 17. The inflow channel 28 is preferably located centrally in the partition 19 at a greater distance from the housing base 13 than from the cover 5.
In der Rückwand 20 der Staubsammelkammer 18 ist ein Abströmkanal 29 (Fig. 6 bis 9) gehalten, der sich von der Rückwand 20 in Richtung auf den Funktionsraum 23 erstreckt und in Montagestellung des Gehäusedeckels 5 gemäß Fig. 3 an einer Dichtfläche 32 stirnseitig an den Saugstutzen 27 des Sauggebläses 22 anschließt. Entsprechend der Lage des gehäusefesten Saugstutzens 27 liegt der Abströmkanal 29 zum zentralen Zuströmkanal 28 seitlich versetzt.In the rear wall 20 of the dust-collecting chamber 18, an outflow channel 29 (FIGS. 6 to 9) is held, which extends from the rear wall 20 in the direction of the functional space 23 and in the mounting position of the housing cover 5 according to FIG Suction nozzle 27 of the suction fan 22 connects. According to the position of the suction port 27 fixed to the housing, the outflow channel 29 is laterally offset from the central inflow channel 28.
Die Staubsammelkammer 18 des Gehäusedeckels 5 ist durch Seitenwände 34 begrenzt, welche innerhalb des Gehäuses 2 liegen. Die Seitenwände 34 verbinden die Rückwand 20 mit der Trennwand 19; die Höhe H der Trennwand 19, die Höhe R der Rückwand 20 sowie die Höhe S der Seitenwände 34 entsprechen einander, wodurch die Staubsammelkammer 18 einen auf gleicher Höhe umlaufenden Rand 33 aufweist.The dust collection chamber 18 of the housing cover 5 is delimited by side walls 34 which lie within the housing 2. The side walls 34 connect the rear wall 20 to the partition 19; the height H of the partition 19, the height R of the rear wall 20 and the height S of the side walls 34 correspond to one another, as a result of which the dust-collecting chamber 18 has an edge 33 running around the same height.
Auf den Innenseiten der Seitenwände 34 sind benachbart zur Rückwand 20 Einschubleisten 35 für Filterrahmen 36 vorgesehen, die sich - vgl. die Fig. 2 bis 4 und 8 - parallel zur Rückwand 20 über die gesamte Höhe S der Seitenwände 34 erstrecken. Die Filterrahmen 36 dienen als Träger für ein Filterelement 37, welches aus Streckmetall oder dgl. bestehen kann. Das Filterelement 37 erstreckt sich in etwa parallel zur Rückwand 20 im wesentlichen über deren gesamte Fläche.On the inner sides of the side walls 34 there are 20 insertion strips 35 for filter frames 36 adjacent to the rear wall. 2 to 4 and 8 - parallel to the rear wall 20 over the entire height S of the side walls 34 extend. The filter frames 36 serve as a carrier for a filter element 37, which can consist of expanded metal or the like. The filter element 37 extends approximately parallel to the rear wall 20 essentially over its entire surface.
Um einen besonders hohen Abscheidegrad zu erhalten, kann die aus der Staubsammelkammer abströmende Saugluft 30 mittels eines elektrostatischen Filters 38 gefiltert werden, welches - wie Fig. 2 als Beispiel zeigt - zwischen zwei in Strömungsrichtung hintereinander angeordneten Filterelementen 37 aus Streckmetall liegen kann.In order to obtain a particularly high degree of separation, the suction air 30 flowing out of the dust collection chamber can be filtered by means of an electrostatic filter 38, which - as shown in FIG. 2 as an example - can lie between two filter elements 37 made of expanded metal arranged one behind the other in the flow direction.
Von besonderer Bedeutung ist, daß die Arbeitskammer 15 und die Staubsammelkammer 18 zusammen mit den Aufnahmen für zusätzliche Filterelemente zum Säubern des Saugluftstroms gemeinsam im Gehäusedeckel 5 angeordnet sind. Der Gehäusedeckel 5 weist zur Montage am Gehäuseunterteil 3 an einer Deckelrückwand 39 Rastleisten 40 auf, welche in entsprechende Rastausnehmungen 41 im Gehäuseoberteil 4 eingreifen. Das Gehäuseoberteil 4 deckt den Motorraum 21 sowie den Funktionsraum 23 ab. Während das Gehäuseoberteil 4 im wesentlichen luftdicht an die Wände 25 und 42 des Motorraums 21 anschließt, liegt die Oberkante 44 der Gehäusewand 24 mit Abstand zum Gehäuseoberteil 4, so daß über die gesamte quer zur Längsmittelachse 17 gemessene Länge des Motorraums 21 ein Strömungsschlitz 43 ausgebildet ist. Das Gehäuseoberteil 4 übergreift den Rand 44 mit einer Schürze 45, die sich parallel zur Gehäusewand 24 außerhalb des Motorraums 21 bis auf etwa halbe Höhe der Gehäusewand 24 erstreckt. Dadurch ist zwischen der Gehäusewand 24 und der Schürze 45 ein schlitzförmiger Abluftkanal 46 gebildet, der sich über die ganze Länge des Strömungsschlitzes 43 erstreckt. Der Abluftkanal 46 verbindet den Motorraum 21 mit einem Ausblasraum 47, welcher zwischen der Rückwand 20 der Staubsammelkammer 18 im Gehäusedeckel 5 und der Gehäusewand 24 gebildet ist. Der Ausblasraum 47 erstreckt sich quer zur Längsmittelachse 17 über die gesamte Breite des Gehäuses 1 und wird von einem Deckelrand 48 verschlossen, welcher eine Vielzahl von Ausblasöffnungen 49 aufweist. Die Ausblasöffnungen 49 erstrecken sich über die gesamte, quer zur Längsmittelachse 17 gemessene Breite des Deckels 5 und verlaufen bis in die Deckelseitenwand 50, welche mit dem Gehäuseunterteil 3 abschließt. Der über die Rückwand 20 der Staubsammelkammer 18 überstehende Deckelrand 48 begrenzt mit den Deckelseitenwänden 50 und der Deckelrückwand 39 einen zum Ausblasraum 47 offenen Filterraum 51 (Fig. 9), in welchem ein Filtervlies, Filterwolle oder dgl. als Ausblasfilter 52 angeordnet ist. Das Ausblasfilter 52 füllt den Filterraum 51 vollständig aus und deckt die Ausblasöffnungen 49 vollständig ab.It is particularly important that the working chamber 15 and the dust collection chamber 18 are arranged together in the housing cover 5 together with the receptacles for additional filter elements for cleaning the suction air flow. For mounting on the lower housing part 3 on a rear cover wall 39, the housing cover 5 has locking bars 40 which engage in corresponding locking recesses 41 in the upper housing part 4. The upper housing part 4 covers the engine compartment 21 and the functional compartment 23. While the upper housing part 4 adjoins the walls 25 and 42 of the engine compartment 21 in an essentially airtight manner, the upper edge 44 of the housing wall 24 lies at a distance from the upper housing portion 4, so that a flow slot 43 is formed over the entire length of the engine compartment 21 measured transversely to the longitudinal central axis 17 , The upper housing part 4 overlaps the edge 44 with an apron 45 which extends parallel to the housing wall 24 outside the engine compartment 21 up to approximately half the height of the housing wall 24. As a result, a slot-shaped exhaust air duct 46 is formed between the housing wall 24 and the apron 45 and extends over the entire length of the flow slot 43. The exhaust air duct 46 connects the engine compartment 21 to a blow-out space 47, which is formed between the rear wall 20 of the dust collection chamber 18 in the housing cover 5 and the housing wall 24. The blow-out space 47 extends transversely to the longitudinal center axis 17 over the entire width of the housing 1 and is closed by a lid edge 48 which has a plurality of blow-out openings 49. The blow-out openings 49 extend over the entire width of the cover 5, measured transversely to the longitudinal central axis 17, and extend into the cover side wall 50, which ends with the lower housing part 3. The lid edge 48 projecting beyond the rear wall 20 of the dust collection chamber 18 delimits, with the lid side walls 50 and the lid rear wall 39, a filter chamber 51 (FIG. 9) open to the blow-out chamber 47, in which a filter fleece, filter wool or the like is arranged as a blow-out filter 52. The blow-out filter 52 completely fills the filter space 51 and completely covers the blow-out openings 49.
Nachdem der Gehäusedeckel 5 mit seinen Rastleisten 40 in den Rastnuten 41 des Gehäuseoberteils 4 eingesetzt ist, wird der Gehäusedeckel 5 mit dem darin angeordneten Staubbeutel 31 und den gewünschten Filterelementen 37 bzw. 38 entgegen Richtungspfeil 94 auf das Gehäuseunterteil verschwenkt, wobei der Rand 33 der Staubsammelkammer 18 auf einer Dichtplatte 53 zu liegen kommt, welche am Gehäuseboden 2 fixiert ist. Dabei greift der Rand 33 - vgl. Fig. 4 - in eine Nut 54 der Dichtplatte 53 des Gehäusebodens 13 ein, wodurch die Staubsammelkammer gegenüber dem Gehäuse luftdicht verschlossen ist. Gleichzeitig liegt die Deckelrückwand 39 an der Schürze 45 des Gehäuseoberteils 4 im wesentlichen luftdicht an, wodurch zwischen der Rückwand 20, dem Boden 13 des Gehäuses 2 und der Gehäusewand 24 der Ausblasraum 47 begrenzt ist. über den Abluftkanal 46 und den Strömungsschlitz 43 ist der Ausblasraum 47 mit dem Mo- torraum 21 verbunden, welcher als Vorraum für den als Ab- luftstrom 55 austretenden Saugluftström benutzt wird. Dabei wird der Abluftstrom 55 auf seinem Weg aus dem Motorraum 21 zu den Ausblasöffnungen 49 über etwa 270° umgelenkt. Zunächst erfolgt eine erste 90°-Umlenkung beim übertritt durch den Strömungsschlitz 43 in den Abluftkanal 46. Bei Austritt aus dem Abluftkanal 46 in den Ausblasraum 47 wird der Abluftstrom 55 erneut um 180" in Richtung auf die im Gehäusedeckel 5 vorgesehenen Ausblasöffnungen 49 umgeleitet.After the housing cover 5 is inserted with its locking strips 40 in the locking grooves 41 of the upper housing part 4, the housing cover 5 with the dust bag 31 arranged therein and the desired filter elements 37 and 38 is pivoted against the directional arrow 94 onto the lower housing part, the edge 33 of the dust collecting chamber 18 comes to rest on a sealing plate 53 which is fixed to the housing base 2. The edge 33 engages here - cf. Fig. 4 - in a groove 54 of the sealing plate 53 of the housing base 13, whereby the dust collection chamber is sealed airtight relative to the housing. At the same time, the lid rear wall 39 lies against the apron 45 of the upper housing part 4 essentially airtight, as a result of which the blow-out space 47 is limited between the rear wall 20, the bottom 13 of the housing 2 and the housing wall 24. The blow-out space 47 with the motor is connected via the exhaust air duct 46 and the flow slot 43. Torraum 21 connected, which is used as an anteroom for the suction air stream emerging as exhaust air flow 55. The exhaust air flow 55 is deflected on its way out of the engine compartment 21 to the exhaust openings 49 over approximately 270 °. First, there is a first 90 ° deflection when passing through the flow slot 43 into the exhaust air duct 46. When the exhaust air duct 46 exits into the blow-out space 47, the exhaust air flow 55 is again diverted by 180 "in the direction of the blow-out openings 49 provided in the housing cover 5.
Die oberhalb des Saugschlitzes 14 angeordnete Reinigungswalze 12 durchragt über einen Teilumfang den Saugschlitz 14 und liegt auf der zu reinigenden Bodenfläche auf. Die Reinigungswalze 12 ist als Textilwalze ausgebildet und trägt auf ihrem Walzenkörper 56 ein Gewebe 57 mit niedrigem Flor, z.B. einem Flor aus unregelmäßig stehenden Fasern wie Kunstfasern. Die Eintrittsfläche des Saugschlitzes 14 ist durch die Reinigungswalze 12 im wesentlichen auf einen schmalen Rahmen 58 beschränkt, wie er in Fig. 10 strichliert dargestellt ist. Diese geringe Eintrittsfläche bewirkt eine hohe Luftströmung im Bereich der Reinigungswalze, so daß die auf einem Hartfußboden liegenden Schmutzpartikel, Flusen oder dgl. über einen großen Wirkungsbereich erfaßt und eingesaugt werden. Mittels des niedrig- florigen Textilgewebes 57 auf dem Bürstenkörper 56 wird auf dem Hartfußboden befindlicher aufgetrockneter Schmutz, Schmutzemulsionen oder dgl. gelöst und ebenfalls mit dem Saugluftstrom abtransportiert.The cleaning roller 12 arranged above the suction slot 14 extends through the suction slot 14 over a partial circumference and lies on the floor surface to be cleaned. The cleaning roller 12 is designed as a textile roller and carries on its roller body 56 a fabric 57 with a low pile, e.g. a pile of irregularly standing fibers such as synthetic fibers. The entry surface of the suction slot 14 is essentially limited by the cleaning roller 12 to a narrow frame 58, as shown in broken lines in FIG. 10. This small entry area causes a high air flow in the area of the cleaning roller, so that the dirt particles, fluff or the like lying on a hard floor are detected and sucked in over a large effective range. By means of the low-pile textile fabric 57 on the brush body 56, dried dirt, dirt emulsions or the like located on the hard floor is loosened and likewise removed with the suction air flow.
Der Saugluftstrom 30 tritt aus der Arbeitskammer 15 über den Zuströmkanal 28 in den Staubbeutel 31 der Staubsammelkammer 18 ein, wobei der Strömungsquerschnitt Q des Zuströmkanals 28 größer ist als der Strömungsquerschnitt der zwischen Reinigungswalze 12 und dem Rand des Saugschlitzes 14 begrenzten Eintrittsfläche.The suction air stream 30 enters the dust bag 31 of the dust collecting chamber 18 from the working chamber 15 via the inflow channel 28, the flow cross section Q of the inflow channel 28 being larger than the flow cross section of the between cleaning roller 12 and the edge of the suction slot 14 limited entry area.
In Strömungsrichtung des Saugluftstroms 30 wird der Strömungsquerschnitt somit größer; entsprechend ist der Abströmkanal 29 in der Rückwand 20 der Staubsammelkammer 18 mit einem größeren Querschnitt A ausgebildet als der Querschnitt Q des Zuströmkanals 28. An den zylindrischen Abströmkanal 29 schließt - mit etwa gleichen Abmessungen - der Saugstutzen 27 des Sauganschlusses 26 an. Der Saugluftstrom 30 tritt nun als Abluftstrom im Motorraum 21 aus, wobei der Querschnitt V des Strömungsschlitzes 43 wiederum größer ist als der Strömungsquerschnitt A des Abströmkanals 21. In Abströmrichtung des Abluftstroms 55 tritt dieser in den Ausblasraum 47 aus, welcher über die Ausblasöffnungen 49 zur Umgebung entlüftet ist. Die Ausblasöffnungen 49 haben in der Summe einen Austrittsquerschnitt, der wiederum größer ist als der Strömungsquerschnitt V des Austrittsschlitzes 43. Damit wird erreicht, daß im Bereich des Saugschlitzes 14 eine Strömungsgeschwindigkeit der Luft von etwa 32 m/sec vorliegt und im Bereich der Ausblasöffnungen 49 die austretende Luft eine Strömungsgeschwindigkeit von nur noch 3 bis 5 m/sec aufweist, über den Strömungsweg wird durch den sich stetig erweiternden Strömungsquerschnitt ein enormer Druckabfall erzielt, was einerseits eine sichere Ablage der mitgeführten Schmutzpartikel im Staubbeutel 31 gewährleistet und andererseits sicherstellt, daß die ausgeblasene Luft nicht zu einer unerwünschten Verwirbelung der Staubpartikel in dem zu reinigenden Raum führt.The flow cross section thus becomes larger in the flow direction of the suction air flow 30; Correspondingly, the outflow channel 29 in the rear wall 20 of the dust collection chamber 18 is designed with a larger cross section A than the cross section Q of the inflow channel 28. The suction port 27 of the suction connection 26 connects to the cylindrical outflow channel 29 with approximately the same dimensions. The suction air stream 30 now emerges as an exhaust air stream in the engine compartment 21, the cross section V of the flow slot 43 in turn being larger than the flow cross section A of the outflow channel 21. In the outflow direction of the exhaust air stream 55, the latter exits into the blow-out space 47, which passes through the blow-out openings 49 to the surroundings is vented. The blow-out openings 49 have in total an outlet cross-section, which in turn is larger than the flow cross-section V of the outlet slit 43. This ensures that there is a flow velocity of the air of approximately 32 m / sec in the area of the suction slit 14 and that in the area of the blow-out openings 49 escaping air has a flow speed of only 3 to 5 m / sec, an enormous pressure drop is achieved via the flow path due to the continuously expanding flow cross-section, which on the one hand ensures safe storage of the carried dirt particles in the dust bag 31 and on the other hand ensures that the blown-out air does not lead to an undesirable swirling of the dust particles in the room to be cleaned.
Da die Arbeitskammer 15, die Staubsammelkammer 18 sowie die zur stufenweisen Säuberung des Luftstroms vorgesehenen Saugluftfilter und Abluftfilter alle im Gehäusedeckel 5 angeordnet sind, sind diese nach Öffnung des Gehäusedeckels leicht zugänglich. Zum öffnen des Gehäusedeckels sind lediglich zwei Rastzungen 60 zurückzudrücken, welche in Rastöffnungen 59 in den Deckelseitenwänden 50 eingerastet liegen. Das ffnen und Schließen des Gehäusedeckels zur leichten Zugänglichkeit des Staubbeutels, der Filter und nicht zuletzt der Reinigungswalze 12 ist durch öffnen der RastVerbindung 61 im Bereich der vorderen Schmalseite 11 des Gehäuses 2 leicht möglich.Since the working chamber 15, the dust collection chamber 18 and the suction air filters and exhaust air filters provided for the gradual cleaning of the air flow are all arranged in the housing cover 5, these are after opening the housing cover easily accessible. To open the housing cover, only two locking tongues 60 have to be pushed back, which are locked in locking openings 59 in the cover side walls 50. Opening and closing the housing cover for easy access to the dust bag, the filter and not least the cleaning roller 12 is easily possible by opening the snap connection 61 in the region of the front narrow side 11 of the housing 2.
Die Reinigungswalze 12 ist - wie insbesondere die Fig. 10 bis 13 zeigen - an ihren Enden drehbar an Verschwenkarmen 65 und 66 gehalten. Die Verschwenkarme 65 und 66 sind um eine gemeinsame Verschwenkachse 64 aus einer Arbeitsposition gemäß Fig. 11 in eine Wartungsposition gemäß Fig. 12 verschwenkbar. In der in Fig. 11 gezeigten Arbeitsposition liegt die Drehachse 63 der Reinigungswalze oberhalb des Saugschlitzes 14, wobei die Reinigungswalze 12 mit ihrem Textilbelag 57 den Saugschlitz 14 durchragt. In der in Fig. 12 dargestellten Wartungsposition liegt die Reinigungswalze 12 außerhalb des Saugschlitzes 14 in das Gehäuseunterteil 3 eingeschwenkt, wobei es über die zur vorderen Stirnseite 11 abfallenden Seitenwände 67 zwecks leichter Zugänglichkeit übersteht.The cleaning roller 12 - as shown in particular in FIGS. 10 to 13 - is rotatably held at its ends on pivot arms 65 and 66. The pivot arms 65 and 66 can be pivoted about a common pivot axis 64 from a working position according to FIG. 11 into a maintenance position according to FIG. 12. In the working position shown in FIG. 11, the axis of rotation 63 of the cleaning roller lies above the suction slot 14, the cleaning roller 12 with its textile covering 57 projecting through the suction slot 14. In the maintenance position shown in FIG. 12, the cleaning roller 12 is pivoted into the lower housing part 3 outside the suction slot 14, whereby it protrudes beyond the side walls 67 sloping towards the front end face 11 for easy access.
Die Verschwenkachse 64 liegt - in Draufsicht nach Fig. 10 - zwischen der Drehachse 63 der Reinigungswalze 12 sowie der Drehachse 62 einer Antriebswelle 68 des Riementriebes 16, also etwa parallel zur Reinigungswalze. Der Riementrieb 16 ist dabei durch ein Zwischengetriebe 70 geteilt, welches aus einer im Durchmesser größer ausgebildeten Eingangsscheibe 71 und einer im Durchmesser kleiner ausgebildeten Ausgangsscheibe 72 besteht, die auf einer gemeinsamen Welle 69 drehfest angeordnet sind. Das Zwischengetriebe 70 liegt mit größerem Abstand al zur Drehachse 62 der Antriebswelle 68 als der Abstand a2 zur Drehachse 63 der Reinigungswalze 63 ist. Das drehzahluntersetzende Zwischengetriebe 70 ist über einen längeren Riemen 73 mit der Antriebsscheibe 75 auf der Antriebswelle 68 verbunden, wobei die Antriebswelle 68 des Riementriebes 16 ein Nebentrieb des Sauggebläses ist. Bevorzugt entspricht die Antriebswelle 68 der Welle des Sauggebläses selbst.The pivot axis 64 lies - in plan view according to FIG. 10 - between the axis of rotation 63 of the cleaning roller 12 and the axis of rotation 62 of a drive shaft 68 of the belt drive 16, that is to say approximately parallel to the cleaning roller. The belt drive 16 is divided by an intermediate gear 70, which consists of an input disk 71 with a larger diameter and an output disk 72 with a smaller diameter, which are arranged on a common shaft 69 in a rotationally fixed manner. The intermediate gear 70 is at a greater distance al to the axis of rotation 62 of the drive shaft 68 as the distance a2 to the axis of rotation 63 of the cleaning roller 63. The speed-reducing intermediate gear 70 is connected via a longer belt 73 to the drive pulley 75 on the drive shaft 68, the drive shaft 68 of the belt drive 16 being a secondary drive of the suction fan. The drive shaft 68 preferably corresponds to the shaft of the suction fan itself.
Die im Durchmesser kleiner Abtriebsscheibe 72 des drehzahluntersetzenden Zwischengetriebes 70 ist über einen kürzeren Riemen 74 mit der Antriebsscheibe 76 der Reinigungswalze 12 verbunden. Dabei ist die Antriebsscheibe 76 drehfest am Walzenkörper 56 angeschlossen. Bevorzugt ist der das Zwischengetriebe 70 mit der Reinigungswalze 12 verbindende Riemen 74 schwächer ausgebildet als der das Zwischengetriebe 70 mit der Antriebswelle 68 verbindende Riemen 73. Dies gewährleistet, daß bei überlast definiert der kürzere Riemen 74 reißt, welcher aufgrund des Ausschwenkens der Reinigungswalze 12 um die Verschwenkachse 64 leicht auszuwechseln ist . Zweckmäßig ist die Verschwenkachse 64 der Verschwenkarme 65 und 66 die Wellenachse 77 des Zwischengetriebes 70. Dabei ist die Drehrichtung 78 der Scheiben 71 und 72 des Zwischengetriebes 70 derart vorgesehen, daß der Verschwenkarm 66 in Pfeilrichtung 79 in Richtung auf die Arbeitsposition gemäß Fig. 11 drehmomentbelastet ist. Dadurch wird gewährleistet, daß auch bei höheren Drehmomenten das durch den Antrieb erzeugte Schwenkmoment auf die Reinigungswalze 12 derart ist, daß es die Arbeitsposition der Reinigungswalze 12 im Saugschlitz 14 stabilisiert.The small-diameter driven pulley 72 of the speed-reducing intermediate gear 70 is connected to the drive pulley 76 of the cleaning roller 12 via a shorter belt 74. The drive pulley 76 is connected in a rotationally fixed manner to the roller body 56. Preferably, the belt 74 connecting the intermediate gear 70 to the cleaning roller 12 is weaker than the belt 73 connecting the intermediate gear 70 to the drive shaft 68. This ensures that in the event of an overload, the shorter belt 74 breaks, which due to the pivoting out of the cleaning roller 12 by the Pivot axis 64 is easy to replace. The pivot axis 64 of the pivot arms 65 and 66 is expediently the shaft axis 77 of the intermediate gear 70. The direction of rotation 78 of the disks 71 and 72 of the intermediate gear 70 is provided such that the pivot arm 66 in the direction of arrow 79 in the direction of the working position according to FIG. 11 is loaded with torque is. This ensures that, even at higher torques, the swivel torque generated by the drive on the cleaning roller 12 is such that it stabilizes the working position of the cleaning roller 12 in the suction slot 14.
Einer der Verschwenkarme 65, bevorzugt beide Verschwenkarme 65 und 66, werden mittels einer Feder 80 oder einer anderen geeigneten Einrichtung in Richtung auf die Wartungsposition nach Fig. 12 kraftbeaufschlagt. Dies führt dazu, daß bei geöffnetem Deckel 5 die Reinigungswalze 12 selbsttätig aus der Arbeitsposition gemäß Fig. 11 in die Wartungsposition gemäß Fig. 12 verschwenkt. In der Wartungsposition gemäß Fig. 12 ist die Reinigungswalze 12 leicht zu warten, insbesondere leicht auszuwechseln. Hierzu greift ein Drehzapfen 81 der am Verschwenkarm 66 drehbar gehalterten Antriebsscheibe 76 stirnseitig und drehfest in den Walzenkörper 56 ein; an dem anderen Ende ist der Walzenkörper durch den Eingriff eines zylindrischen Zapfens 82 drehbar gehalten. In der ausgeschwenkten Wartungsposition gemäß Fig. 12 lassen sich unter Ausnutzung der Elastizität der Verschwenkarme 65 und 66 die stirnseitig in die Enden des Walzenkörpers 56 eingreifenden Zapfen 81 und 82 leicht herausziehen, so daß die Reinigungswalze 12 ohne weiteres Werkzeug leicht austauschbar ist.One of the swivel arms 65, preferably both swivel arms 65 and 66, is acted upon by a spring 80 or another suitable device in the direction of the maintenance position according to FIG. 12. This leads to the fact that opened cover 5, the cleaning roller 12 automatically pivots from the working position according to FIG. 11 into the maintenance position according to FIG. 12. In the maintenance position according to FIG. 12, the cleaning roller 12 is easy to maintain, in particular easy to replace. For this purpose, a pivot pin 81 of the drive disk 76 rotatably held on the swivel arm 66 engages on the end face and in a rotationally fixed manner in the roller body 56; at the other end, the roller body is rotatably held by the engagement of a cylindrical pin 82. In the pivoted-out maintenance position according to FIG. 12, by using the elasticity of the pivoting arms 65 and 66, the pins 81 and 82 engaging at the ends in the ends of the roller body 56 can be easily pulled out, so that the cleaning roller 12 can be easily replaced without any additional tools.
Wird - wie beschrieben - zum Verschließen des Gehäuses 2 der Gehäusedeckel 5 mit seinen Rastleisten 40 in die Rastausnehmungen 41 des Gehäuseoberteils 4 eingesetzt und in Richtung auf den Gehäuseboden 13 verschwenkt, greifen im Deckel 5 vorgesehene Niederhalter 83 und 84 an den Verschwenkarmen 65 und 66 an und drücken diese zum Verschwenken in Pfeilrichtung 79 in Richtung auf die Arbeitsposition gemäß Fig. 11. Dabei ist der eine Niederhalter 83, welcher dem Verschwenkarm 65 zugeordnet ist, als in der Ebene der Trennwand 19 vorgesehene Wandverlängerung ausgebildet, welche auf etwa halber Höhe am Schwenkarm 65 angreift. In der in Fig. 11 gezeigten Arbeitslage liegt der Schwenkarm 65 in einer gehäusefesten Gabel 85 und ist so in seiner Lage fixiert.If - as described - for closing the housing 2, the housing cover 5 with its locking strips 40 is inserted into the locking recesses 41 of the housing upper part 4 and pivoted in the direction of the housing base 13, hold-down devices 83 and 84 provided in the cover 5 engage the pivoting arms 65 and 66 and press it to pivot in the direction of arrow 79 in the direction of the working position according to FIG. 11. The one hold-down device 83, which is assigned to the pivot arm 65, is designed as a wall extension provided in the plane of the partition 19, which is at about half the height on the pivot arm 65 attacks. In the working position shown in FIG. 11, the swivel arm 65 lies in a fork 85 fixed to the housing and is thus fixed in its position.
Der Niederhalter 84, welcher dem mit der Antriebsscheibe 76 versehenen Schwenkarm 66 zugeordnet ist, besteht aus einer in Verlängerung der Seitenwand 34 liegenden Teilwand 87, die den Arbeitsraum 15 quer zur Längsmittelachse 17 des Gehäuses 2 begrenzt. In Verlängerung der Trennwand 19 ist im Bereich der Teilwand 87 eine am Gehäusedeckel vorgesehene Gabel 86 vorgesehen, welche beim Einschwenken des Gehäusedeckels 5 wirksam ist und den Schwenkarm 66 in Richtung auf eine gehäusefeste Teilwand 88 verschwenkt, die als Gegenhalter 89 mit dem Niederhalter 84 zusammenwirkt. In beiden Teilwänden 87 und 88 ist jeweils ein Teil 91 bzw. 92 einer Lageröffnung 90 ausgebildet, welche von dem Drehzapfen 81 durchragt ist. Die Teilwände 87 und 88 begrenzen quer zur Längsmittelachse 17 den Saugschlitz 14 an einem Ende, wobei zwischen den Teilwänden 87 und 88 und den Seitenwänden 67 des Gehäuseunterteils 3 bzw. den Deckelseitenwänden 50 und den Seitenwänden 34 der Staubsammelkammer 18 sowie den Wandungen des Motorraums 21 ein Einbauraum 93 für den Riementrieb begrenzt ist.The hold-down device 84, which is assigned to the swivel arm 66 provided with the drive disk 76, consists of a partial wall 87 lying in the extension of the side wall 34, which limits the working space 15 transversely to the longitudinal central axis 17 of the housing 2. In the extension of the partition 19, a fork 86 provided on the housing cover is provided in the region of the part wall 87, which fork is effective when the housing cover 5 is pivoted in and pivots the pivot arm 66 in the direction of a part wall 88 fixed to the housing, which cooperates with the hold-down device 84 as a counter-holder 89. In both partial walls 87 and 88 a part 91 and 92 of a bearing opening 90 is formed, which is penetrated by the pivot 81. The partial walls 87 and 88 delimit the suction slot 14 at one end transversely to the longitudinal central axis 17, with a between the partial walls 87 and 88 and the side walls 67 of the lower housing part 3 or the cover side walls 50 and the side walls 34 of the dust collection chamber 18 and the walls of the engine compartment 21 Installation space 93 for the belt drive is limited.
Wird die Rastverbindung 61 des Gehäusedeckels 5 am Gehäuseunterteil 3 gelöst, kann der Deckel in Öffnungsrichtung gemäß Pfeil 94 in Fig. 1 um die in den Rastausnehmungen liegenden Rastleisten 40 hochgeschwenkt und abgenommen werden. Der Gehäusedeckel 5 ist so vom Grundgehäuse 3 und dem Gehäuseoberteil 4 getrennt, und die in ihm angeordneten Elemente sind leicht zugänglich. Die Reinigungswalze 12 ist durch eine Federkraft selbsttätig aus der Arbeitsposition in Fig. 11 in die Wartungsposition in Fig. 12 hochgeschwenkt, so daß die Reinigungswalze für Wartungsarbeiten frei zugänglich ist. Die Reinigungswalze 12 ist durch Abziehen von den Zapfen der Verschwenkarme leicht auszubauen.If the locking connection 61 of the housing cover 5 on the lower housing part 3 is released, the cover can be pivoted up and removed in the opening direction according to arrow 94 in FIG. 1 around the locking strips 40 located in the locking recesses. The housing cover 5 is thus separated from the basic housing 3 and the upper housing part 4, and the elements arranged in it are easily accessible. The cleaning roller 12 is automatically pivoted up by a spring force from the working position in FIG. 11 to the maintenance position in FIG. 12, so that the cleaning roller is freely accessible for maintenance work. The cleaning roller 12 is easy to remove by pulling off the pivot of the pivot arms.
Von besonderer Bedeutung ist, daß der Gehäusedeckel 5 den Staubsammelbehälter mit allen Aufnahmen für die wahlweise anzuordnenden Filter bildet. Dabei wird durch die Anordnung mehrerer Filterelemente 37, 38 hintereinander eine Absenkung der Luftgeschwindigkeit erzielt, weshalb sich die Luft stark entspannen kann; dadurch ist eine höhere Staubabscheidung möglich. Durch Anordnung mehrerer Filterelemente mit kleinen Filterflächen 37, 38 hintereinander wird der gleiche Effekt erzielt wie mit nur einem Filterelement mit großer Filterfläche. It is of particular importance that the housing cover 5 forms the dust collector with all the receptacles for the filters to be arranged optionally. The arrangement of several filter elements 37, 38 one behind the other Reduction in air speed achieved, which is why the air can relax greatly; this enables a higher dust separation. By arranging several filter elements with small filter areas 37, 38 one behind the other, the same effect is achieved as with only one filter element with a large filter area.
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU22920/00A AU2292000A (en) | 2000-01-15 | 2000-01-15 | Vacuum cleaner comprising a dust collection chamber in the housing cover |
| PCT/EP2000/000308 WO2001050935A1 (en) | 2000-01-15 | 2000-01-15 | Vacuum cleaner comprising a dust collection chamber in the housing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2000/000308 WO2001050935A1 (en) | 2000-01-15 | 2000-01-15 | Vacuum cleaner comprising a dust collection chamber in the housing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001050935A1 true WO2001050935A1 (en) | 2001-07-19 |
Family
ID=8163798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2000/000308 Ceased WO2001050935A1 (en) | 2000-01-15 | 2000-01-15 | Vacuum cleaner comprising a dust collection chamber in the housing cover |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2292000A (en) |
| WO (1) | WO2001050935A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012085567A1 (en) * | 2010-12-22 | 2012-06-28 | Grey Technology Limited | Vacuum cleaner |
| US9737183B2 (en) | 2013-04-10 | 2017-08-22 | Grey Technology Limited | Vacuum cleaner |
| US9943199B2 (en) | 2013-06-05 | 2018-04-17 | Grey Technology Limited | Hand-held vacuum cleaner |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB877778A (en) * | 1959-07-01 | 1961-09-20 | Cimex Ltd | Improvements in vacuum floor-cleaning machines |
| GB1289245A (en) * | 1970-04-21 | 1972-09-13 | ||
| DE2119564A1 (en) * | 1971-04-22 | 1972-11-02 | Progress-Elektrogeräte Mauz & Pfeiffer, 7000 Stuttgart | Floor cleaning machine |
| US3906585A (en) * | 1972-12-15 | 1975-09-23 | Electrolux Ab | Floor treating apparatus |
| JPH01207025A (en) * | 1988-02-15 | 1989-08-21 | Matsushita Electric Ind Co Ltd | vacuum cleaner |
| US5500979A (en) * | 1994-04-02 | 1996-03-26 | Firma Fedag | Vacuum cleaner |
| US5829090A (en) * | 1996-01-11 | 1998-11-03 | Black & Decker Inc. | Vacuum cleaner with combined filter element and collection unit |
| US5960514A (en) * | 1997-11-10 | 1999-10-05 | The Hoover Company | Wheel driven suction nozzle |
-
2000
- 2000-01-15 WO PCT/EP2000/000308 patent/WO2001050935A1/en not_active Ceased
- 2000-01-15 AU AU22920/00A patent/AU2292000A/en not_active Abandoned
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB877778A (en) * | 1959-07-01 | 1961-09-20 | Cimex Ltd | Improvements in vacuum floor-cleaning machines |
| GB1289245A (en) * | 1970-04-21 | 1972-09-13 | ||
| DE2119564A1 (en) * | 1971-04-22 | 1972-11-02 | Progress-Elektrogeräte Mauz & Pfeiffer, 7000 Stuttgart | Floor cleaning machine |
| US3906585A (en) * | 1972-12-15 | 1975-09-23 | Electrolux Ab | Floor treating apparatus |
| JPH01207025A (en) * | 1988-02-15 | 1989-08-21 | Matsushita Electric Ind Co Ltd | vacuum cleaner |
| US5500979A (en) * | 1994-04-02 | 1996-03-26 | Firma Fedag | Vacuum cleaner |
| US5829090A (en) * | 1996-01-11 | 1998-11-03 | Black & Decker Inc. | Vacuum cleaner with combined filter element and collection unit |
| US5960514A (en) * | 1997-11-10 | 1999-10-05 | The Hoover Company | Wheel driven suction nozzle |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 013, no. 515 (C - 655) 17 November 1989 (1989-11-17) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012085567A1 (en) * | 2010-12-22 | 2012-06-28 | Grey Technology Limited | Vacuum cleaner |
| RU2573967C2 (en) * | 2010-12-22 | 2016-01-27 | Грей Текнолоджи Лимитед | Vacuum cleaner |
| US9560944B2 (en) | 2010-12-22 | 2017-02-07 | Grey Technology Limited | Vacuum cleaner |
| US9737183B2 (en) | 2013-04-10 | 2017-08-22 | Grey Technology Limited | Vacuum cleaner |
| US9943199B2 (en) | 2013-06-05 | 2018-04-17 | Grey Technology Limited | Hand-held vacuum cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2292000A (en) | 2001-07-24 |
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