EP2575586A1 - Aspirateur à alimentation en air de balayage - Google Patents

Aspirateur à alimentation en air de balayage

Info

Publication number
EP2575586A1
EP2575586A1 EP11720800.9A EP11720800A EP2575586A1 EP 2575586 A1 EP2575586 A1 EP 2575586A1 EP 11720800 A EP11720800 A EP 11720800A EP 2575586 A1 EP2575586 A1 EP 2575586A1
Authority
EP
European Patent Office
Prior art keywords
closing body
vacuum cleaner
scavenging air
cleaner according
suction
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
EP11720800.9A
Other languages
German (de)
English (en)
Other versions
EP2575586B1 (fr
Inventor
Felix Treitz
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 EP2575586A1 publication Critical patent/EP2575586A1/fr
Application granted granted Critical
Publication of EP2575586B1 publication Critical patent/EP2575586B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • A47L9/20—Means for cleaning filters
    • 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
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
    • 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

Definitions

  • the invention relates to a vacuum cleaner with a dirt collecting container which has a suction inlet and is in flow connection via at least one filter and a suction line with a suction unit, and with a scavenging air supply means for supplying scavenging air into the suction line downstream of the filter, wherein the scavenging air supply means comprises at least one scavenging air opening and a sleeve-shaped closing body, which prevents in a closed position, the inflow of scavenging air through the at least one scavenging air opening in the suction and manually in a direction of movement in the inflow of scavenging air on the at least one scavenging air in the suction releasing release position is movable.
  • the vacuum cleaner has at least one filter which is arranged in the flow path between the dirt collecting container and the suction unit. At the side of the at least one filter facing the dirt collecting container, dirt particles gradually accumulate during the suction operation of the vacuum cleaner. It is therefore necessary to clean the at least one filter after some time, since otherwise the suction flow generated by the suction unit in the region of the filter experiences a strong pressure loss, so that an effective suction operation of the vacuum cleaner is no longer guaranteed.
  • the dirt collecting container side facing away from the filter can be acted upon with purging air.
  • the purge air supply Direction includes at least one purge air, which is in flow communication with the suction line.
  • the inflow of scavenging air via the scavenging air opening into the suction line can optionally be prevented and released.
  • the scavenging air supply device comprises a sleeve-shaped closing body which, in its closed position, prevents the inflow of scavenging air and releases it in its release position.
  • the inflow is prevented by the closing body assumes its closed position.
  • the closing body is designed in the manner of a sleeve and can be moved manually in a direction of movement, starting from a closed position into its release position. In the release position, scavenging air can flow into the suction line and act on the side of the at least one filter remote from the dirt collecting container. As a result, the filter is mechanically shaken and at least part of the inflowing scavenging air, the at least one filter in the counterflow direction, d. H.
  • a vacuum cleaner of the type mentioned is known from the publication WO 97/19630 AI.
  • the scavenging air supply device has a housing which is of tubular design and has lateral scavenging air openings.
  • a sleeve-shaped closing body is held displaceable coaxially with respect to its longitudinal axis.
  • the closing body has side openings in a similar manner as the tubular housing.
  • These lateral openings of the closing body can be aligned in a release position of the closing body in alignment with the scavenging air openings of the housing so that scavenging air can flow via the scavenging air openings and the sleeve-shaped closing body into the area of the suction line downstream of the filter for cleaning the filter.
  • the closing body assumes a position in which its openings are axially offset from the purging air openings are arranged and thereby the flow connection between the scavenging air openings and the suction line is interrupted.
  • the purge air supply device used for this purpose comprises a hood-shaped closing body. On its upper side facing away from the filter, the closing body is acted upon in its closed position with atmospheric pressure and the underside acts on the closing body of the prevailing in the suction vacuum, d. H. the closing body is also acted upon in its closed position with an aligned in the direction of its release position compressive force. To clean the filter, the closing body moves from its closed position to its release position, in which it releases a flow connection between a scavenging air opening and the suction line.
  • the purge air supply means comprises a plate-shaped closing body, which is held by means of an electromagnet against the action of a compressive force in its closed position. After switching off the exciting current of the electromagnet, the closing body can be moved by the pressing force in its release position. Also in this vacuum cleaner, the forces acting on the closing body abruptly change as soon as the closing body reaches its release position, since then eliminates the pressure difference prevailing on the closing body.
  • Object of the present invention is to develop a vacuum cleaner of the type mentioned in such a way that a sudden increase of a required for moving the closing body in its release position manual actuating force can be avoided.
  • the closing body is open at its two end faces and in the closed position with at least two together cooperating sealing elements, which are displaceable relative to one another in the direction of movement, prevents the inflow of scavenging air through the at least one scavenging air opening into the suction line.
  • the closing body used in the vacuum cleaner according to the invention is designed to be elongated in the manner of a sleeve. It has a peripheral wall extending in the circumferential direction and a first and a second end face. Both ends are open.
  • the inflow of scavenging air is prevented in the closed position of the closing body by means of at least two sealing elements, which are displaceable relative to each other in the direction of movement of the closing body.
  • the sealing elements can be arranged for example in the region of the peripheral wall. It can also be provided that two sealing elements are arranged in the region of one end face of the sleeve-shaped closing body.
  • the cooperating sealing elements are offset from each other and the closing body releases a flow connection between the at least one scavenging air opening and the suction line.
  • the inflowing scavenging air has as usual the result that in the
  • sealing elements extend in the circumferential direction of the closing body.
  • the sealing elements can be designed, for example, as a sealing ring and as an associated sealing surface, wherein the sealing ring or else the sealing surface is arranged on the peripheral wall of the closing body.
  • sealing elements extend along the entire circumference of the closing body.
  • a sealing ring and a sealing surface associated with the sealing ring may extend over the entire circumference of the closing body.
  • two sealing elements form a gap seal.
  • This forms in the closed position of the closing body a very narrow gap between two facing sealing surfaces.
  • the sealing effect of the gap seal depends on its width and also on its length. The sealing effect is greater, the longer and the narrower the gap between the mutually facing sealing surfaces.
  • sealing elements form a sealing ring and a sealing surface associated with the sealing ring.
  • the sealing ring or alternatively the sealing surface may be arranged on the closing body.
  • a sealing element is arranged on an end face of the closing body.
  • the inflow of scavenging air through the at least one scavenging air opening in the suction line is prevented in such a configuration in the closed position of the closing body by the end-side sealing element. If the closing body is moved in the axial direction, then the sealing element gives the inflow of scavenging air is free and scavenging air can flow past the sealing element with the flow direction aligned transversely to the longitudinal axis of the closing body.
  • the closing body has a sealing element in the form of a peripheral sealing surface on one end face.
  • the sealing surface is preferably formed as a sealing edge and lies in the closed position of the closing body sealingly against an associated sealing ring.
  • the sealing ring may for example be positioned on a housing of the scavenging air supply device or, for example, on a wall of the suction line. During the transition from the closed position into the release position, the sealing surface lifts off from the associated sealing ring and thereby releases the flow connection between the at least one scavenging air opening and the suction line.
  • the closing body can be acted upon in the closed position with a holding force, which must be overcome for triggering the movement of the closing body by the user. So that the closing body can change its position starting from its closed position, the user must first overcome the holding force. Only after overcoming the holding force, the transition from the closed position to the release position can take place.
  • the holding force decreases abruptly after the start of the movement of the closing body, in particular.
  • the user must first exert a significant operating force on the closing body to trigger a cleaning process, so that in the closed position acting on the closing body holding force can be overcome. Only then the movement of the closing body is set in motion, but then the holding force abruptly drops or completely eliminated.
  • This has the advantage that the user intuitively loads the closing body with a considerable actuating force, which greatly accelerates the closing body after overcoming the holding force, so that it assumes its release position within a short time.
  • the holding force acting on the closing body in its closed position can be achieved, for example, with the aid of a magnet or else with the aid of a latching mechanism.
  • a magnet can act on the closing body in the closed position, a magnetic holding force.
  • the holding force exerted by the magnet is relatively large, however, the closing body moves out of the closed position, the holding force decreases sharply with increasing distance.
  • the force exerted by the user to overcome the holding force on the closing body first actuating force then causes a strong acceleration of the closing body.
  • latching elements can be arranged on the closing body and, for example, on the housing of the scavenging air supply device or also on a wall of the suction line, which interact with one another in the closed position of the closing body and establish a latching connection.
  • the user In order to move the closing body out of its closed position, the user must first release the latching connection. For this purpose, a not inconsiderable actuation force is required, which after the release of the locking connection has a strong acceleration of the closing body result.
  • the closing body in the closed position can be acted upon by a holding force which is dependent on the pressure in the suction line and which has to be overcome by the user in order to trigger the movement of the closing body.
  • the closing body is acted upon in the closed position with a larger holding force, the greater the negative pressure prevailing in the suction line downstream of the filter. If the flow connection between the at least one purging air opening and the suction line is released, then the negative pressure in the suction line settles and the holding force decreases abruptly.
  • the user must first overcome the force acting on the closing body holding force to trigger a cleaning process and then the closing body can be greatly accelerated so that it takes its release position within a short time and the at least one filter is abruptly acted upon by scavenging air.
  • Closing body is arranged and the closing body radially expands in the direction of this end face. Due to the radial extension of the closing body, the surfaces of the closing body, in which it is acted upon in the axial direction with the pressure prevailing in the suction negative pressure or with the outside acting on the closing body external pressure, in particular atmospheric pressure, are selected such that the closing body in its closed position is acted upon by a pressure force which is directed in the direction of the closed position.
  • the external pressure exerts in such a configuration in the axial direction of the closing body from a compressive force, which holds the closing body in its closed position.
  • the closing body If the closing body is moved out of its closed position, purging air flows into the suction line and the pressure in the suction line equals the pressure outside of the closing body, so that the pressure force directed axially in the direction of the closing position is dispensed with.
  • the axially aligned pressure force thus forms a dependent of the pressure within the suction line holding force that must be overcome by the user to start the movement of the closing body.
  • the closing body is coupled to a manually actuable plunger.
  • the plunger may have a plunger shaft which engages through an actuating opening of a housing of the scavenging air supply device and carries at its protruding from the housing end a widening plunger head, which can be acted upon by the user with a compressive force.
  • the plunger shaft can thus be pressed by the user in the housing of the scavenging air supply and thereby can the Closing body to be moved from its closed position to its release position.
  • the closing body is coupled with a manually operable pull rod.
  • the pull rod may have a push rod shaft which engages through an actuating opening of the housing of the scavenging air supply device and at its end protruding from the housing has a plunger head, which can be acted upon by the user with a pulling force. The plunger head can be pulled out of the housing by the user and thereby the closing body can be moved to its release position.
  • the closing body bears slidably on a guide part.
  • the guide part can be formed, for example, by a housing of the scavenging air supply device.
  • the suction line forms a guide part for the closing body.
  • the guide part has the at least one purge air opening.
  • the suction line forms the guide part on which the closing body rests on the outside slidably.
  • the closing body forms a suction tube encompassing the cuff, which covers scavenging air openings of the suction line in the closed position and releases the purging air openings in the release position.
  • the sleeve-like closing body in the axial direction or be reciprocated in the circumferential direction of the suction between its closed position and its release position.
  • the flow connection between the at least one filter and the suction unit can be interrupted by means of the closing body.
  • the closing body of the purge air supply on the one hand has the function to release the inflow of purge air through the at least one purge air in the suction for cleaning the at least one filter and to prevent during the normal suction operation of the vacuum cleaner.
  • the closing body assumes the function during the filter cleaning to interrupt the flow connection between the at least one filter and the suction unit.
  • Figure 1 is a schematic partial sectional view of a first embodiment of a vacuum cleaner according to the invention with a dirt collecting container and a scavenging air supply;
  • Figure 2 is a schematic partial sectional view of a second embodiment of a vacuum cleaner according to the invention with a dirt collecting container and a scavenging air supply
  • Figure 3 is a schematic partial sectional view of a third embodiment of a vacuum cleaner according to the invention with a dirt collecting container and a scavenging air supply device.
  • FIG. 1 schematically shows a first embodiment of a vacuum cleaner according to the invention with a dirt collecting container 10 which has a suction inlet 12 and a suction outlet 14.
  • the suction outlet 14 is covered within the dirt collecting container 10 by a filter 16.
  • a suction line 18 connects.
  • the suction line 18 is shown only partially in FIG. It connects the dirt collecting 10 with a known per se and therefore not shown in the drawing suction unit, by means of which the suction line 18 and the dirt collecting 10 can be subjected to negative pressure. This forms a suction flow, under the effect
  • the suction line 18 has above the suction outlet 14 on a guide collar 20 which surrounds a passage opening 22 in the circumferential direction.
  • a purge air supply means 24 is arranged on the outside of the suction line 18 with a passage opening 22 covering the housing 26 which is designed in the manner of a hood with a cover 28 having a central opening 30 and at its outer edge with a Suction line 18 connected annular wall 32 connects.
  • the annular wall 32 comprises a plurality of scavenging air openings 34, which are distributed over their circumference and are separated from each other by narrow webs.
  • the central opening 30 of the lid 28 is penetrated by a shaft 38 of a pressure ram 40.
  • the shaft 38 is integrally connected to a pushbutton 42, which in the way S-shaped U-shaped and surrounds a return spring 44 which is clamped between the outside of the lid 28 and the push button 42 and the pressure rod 40 is acted upon by a restoring force in the filter 16 facing away from the direction.
  • the shaft 38 carries a plurality of radially extending retaining struts 46, via which the pressure ram 40 is rigidly connected to a closing body 48.
  • the closing body 48 is designed in the form of a cylindrical sleeve and comprises a cylindrical jacket-shaped circumferential wall 50, which dips into the through-opening 22 of the suction line 18 and slidably bears on the guide collar 20 of the suction line 18 with its outer side forming a gap seal 52.
  • the circumferential wall 50 of the closing body 48 widens via a radially oriented step 54.
  • the closing body 48 has a first end face 56 on which a radially expanded area of the closing body 48 opens frontal sealing surface is arranged in the form of a sealing edge 58.
  • the sealing edge 58 is in the closed position of the closing body 48 shown in Figure 1 close to a sealing ring 60, which is arranged in an inside in the cover 28 of the housing 60 molded annular groove.
  • the sealing edge 58 and the sealing ring 60 form two in the closed position of the closing body 48 cooperating sealing elements, which are displaceable by movement of the closing body 48 in its release position relative to each other. This will be explained in more detail below.
  • the peripheral wall 50 With its end dipping into the passage opening 22 of the suction line 18, the peripheral wall 50 defines a second end face 64 of the closing body 48, which faces the filter 16. Both the first end face 56 and the second end face 54 are open.
  • the closing body 48 is in its closed position shown in Figure 1 with its frontal sealing edge 58 on the sealing ring 60th and the peripheral wall 50 forms a gap seal in combination with the guide collar 20.
  • the flow connection between the scavenging air openings 34 of the annular wall 32 and the suction line 18 is interrupted.
  • This closed position assumes the closing body 48 during the normal suction operation of the vacuum cleaner.
  • the closing body 18 is subjected to a holding force due to its stepped configuration in the closed position, which presses it against the sealing ring 60.
  • the holding force results from an axially acting on the closing body 48 compressive force, which results from the fact that the closing body 48 is applied on its outer side in the region of the radial step 54 with the outside of the suction 18 prevailing external pressure, preferably at atmospheric pressure, whereas in the Surrounded by the sealing edge 58 area of the first end face 56 of the pressure prevailing in the suction line 18 negative pressure acts.
  • the pressure force acting in the closed position on the closing body 48 is aligned in the direction away from the filter 16, d. H. in the direction of the sealing ring 60. Consequently, the closing body 48 is acted upon in its closed position by a pressure-dependent holding force.
  • the user can press the push rod 40 against the action of the return spring 44 against the cover 28 of the housing 26.
  • the hollow cylindrical closing body 48 is moved along its longitudinal axis 66 in the direction of the filter 16.
  • the user must act on the push button 48 with an actuating force that is greater than the pressure-dependent holding force, which acts axially on the closing body 48 in the closed position.
  • the movement of the closing body 48 is set from its closed position shown in Figure 1 into a release position in motion, in which the radial step 54 rests against the outside 68 of the suction line 18.
  • the closing body 48 lifts with its sealing edge 58 from the sealing ring 60, so that the flow connection between the scavenging air openings 34 and the suction line 48 is released and scavenging air in the radial direction with respect to the longitudinal axis 66 of the closing body 48 on Seal 60 can flow past.
  • the scavenging air flows through the hollow cylindrical closing body 48 in the longitudinal direction, in order then to act on the dirt collecting container 10 facing away from the downstream side of the filter 18.
  • the filter 16 is thereby mechanically shaken and at least part of the inflowing scavenging air flows through the filter 16 against the prevailing during the normal suction operation flow direction. Under the effect of the mechanical vibration of the filter 16 and the purging air flowing through in the countercurrent direction, an effective cleaning of the filter 16 is produced.
  • Closing member 48 lifts with its sealing edge 58 from the sealing ring 60, eliminates the pressure-dependent holding force due to the incoming scavenging air. However, since at this time by the user continue the considerable operating force is exerted, the closing body 48 is strongly accelerated in the direction of the filter 16. Thus, the closing body 48 takes within a short time its release position and scavenging air can abruptly act on the filter 16. By manual actuation of the closing body 48, an effective cleaning of the filter 16 can thus be achieved.
  • Closing body 48 is immersed in its release position in an annular collar 70 which surrounds the suction outlet 14 on the outside of the dirt collecting container 10 facing away from the filter 16.
  • the closing body 48 thereby interrupts the flow connection between the filter 16 and the suction unit arranged at the free end of the suction line 16 in its release position. Inflowing scavenging air can thus not directly reach the suction unit, but flows through virtually all the scavenging air flowing into the suction line 18 in the release position of the closing body 48, the filter 16 in the counterflow direction and thereby causes a particularly effective cleaning.
  • FIG. 2 shows a second embodiment of a vacuum cleaner according to the invention is shown schematically in a partial sectional view.
  • This embodiment is designed substantially identical to the first embodiment explained above with reference to FIG.
  • the same reference numerals are used in Figure 2 as in Figure 1.
  • reference is made to the foregoing explanations to avoid repetition.
  • a scavenging air supply device 84 is used with a hollow cylindrical closing body 86 which, in contrast to the closing body 48 explained above, has no radial expansion and which slidably bears against the inside of an annular wall 88 of a housing 90 of the scavenging air supply device 84.
  • radially extending support struts 92 of the closing body 86 is rigidly connected to the shaft 94 of a pull rod 96 which passes through a central opening 98 of the housing 90 and is integrally connected at its protruding from the housing 90 end with a pull knob 100.
  • the shaft 94 is surrounded by a return spring 102, which is clamped between the support struts 92 and the housing 90 and acts on the closing body 96 with a restoring force, which faces the filter 16.
  • the closing body 86 comprises a first end face 104, which faces away from the filter 16, and a second end face 106, which faces the filter 16. At its second end face 106, the closing body 86 has a circumferential sealing surface in the form of a sealing edge 108, which is pressed against a sealing ring 110 in the closed position of the closing body 86 shown in FIG ,
  • purge air openings 114 are arranged distributed over the circumference of the annular wall in the annular wall 88.
  • the flow connection between the scavenging air openings 114 and the suction line 18 is interrupted by the closing body 86, provided that it assumes its closed position. If the pull knob is acted upon by the user with a pulling force away from the filter 16, then the closing body 86 with its sealing edge 108 lifts off from the sealing ring 110 and thereby releases the flow connection between the scavenging air openings 114 and the suction line 18.
  • the radially extending retaining struts 92 are rigidly connected via axial holding webs 116 with a sleeve 118 which dips into the annular collar 70 in the closed position of the closing body 86. If the closing body 86 is replaced by aufschlagung the pull rod 96 moves with a tensile force in its release position, in which the sealing edge 108 is spaced from the sealing ring 110, so interrupts the sleeve 118, the flow connection between the filter 16 and the suction unit by in the release position of the closing body 86, the gap between the annular collar 70 and the passage opening 22 of the suction line 18 covers.
  • scavenging air can flow into the suction line 18 via the scavenging air openings 114 in the release position, but the scavenging air can not be sucked out by the suction unit at the same time, but practically the entire scavenging air flows through the filter 16 against the suction flow prevailing during the normal suction operation.
  • the closing body 86 is acted upon only in the radial direction with a pressure difference due to the different pressures that are present inside and outside the closing body 86.
  • an axial pressure load does not occur.
  • the return spring 102 exerts a gradually increasing restoring force on the pull button 100, which must be overcome by the user by exerting a corresponding actuating force.
  • the inflow of the scavenging air into the suction line does not lead to an axially aligned force change and thus to a sudden increase of the manual movement required to move the closing body 86 during the transition from the closed position to the release position operating force.
  • the user thus does not feel any sudden increase in resistance when operating the pull rod 96; therefore, he can transfer the closing body 86 into its release position within a short time, so that the inflowing scavenging air can act on the filter 18 abruptly.
  • FIG. 3 A third embodiment of a vacuum cleaner according to the invention is shown schematically in Figure 3 in a partial sectional view. Identical components are assigned the same reference numerals in FIG. 3 as in FIG These components will be referred to the foregoing explanations to avoid repetition.
  • a scavenging air feed device 134 is used with a housing 136, which is formed by a line section 138 of the suction line 18.
  • the line section 138 has a plurality of scavenging air openings 140 arranged uniformly distributed over the circumference of the line section 138.
  • a closing body 142 of the scavenging air supply device 134 is designed in the manner of a hollow cylindrical sleeve, which covers the scavenging air openings 140 in the closed position of the closing body 142 shown in FIG.
  • the closing body 142 has a radially outwardly projecting thickening 144, on which a return spring 146 is supported, which rests on the one hand on the thickening 144 and on the other hand on a stepped extension 148 of the suction line 18.
  • Closing member 142 has a first circumferential annular groove 150 and at an axial distance to this a second circumferential annular groove 152.
  • a first circumferentially circumferential sealing ring 154 is arranged, which abuts in the closed position of the closing body 142 at a downstream of the scavenging air 140 on the outside of the line section 138 arranged sealing surface.
  • the second annular groove 152 receives a second circumferentially circumferential sealing ring 156, which rests in the closed position of the closing body 142 close to an upstream of the scavenging air 140 arranged on the outside of the line section 138 sealing surface.
  • the first sealing ring 154 forms with its associated sealing surface a first pair of sealing elements
  • the second sealing ring 156 forms with the associated sealing surface of a second pair of sealing elements.
  • the line section 138 of the suction line 18 forms in the embodiment shown in Figure 3, the housing of the scavenging air supply, which is surrounded by the sleeve-like closing body 142.
  • a separate suction line is used, as indicated in Figure 3 by the arrow 160 shown in dashed lines.
  • the housing 136 is closed on its side facing away from the filter 16 top 162, but it also has the side scavenging air openings 140, which are covered in the closed position of the sleeve-like closure member 142.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

L'invention concerne un aspirateur équipé d'un récipient collecteur de saletés (10) qui présente une entrée d'aspiration (12) et est en communication fluidique par l'intermédiaire d'au moins un filtre (16) et d'un conduit d'aspiration (18) avec une unité aspiratrice et d'un dispositif d'alimentation en air de balayage (24) pour amener de l'air de balayage dans le conduit d'aspiration en aval du filtre, le dispositif d'alimentation en air de balayage présentant au moins une ouverture (34) d'air de balayage ainsi qu'un corps de fermeture (48) en forme de douille qui, dans une position de fermeture, empêche l'entrée d'air de balayage par cette ouverture d'air de balayage dans le conduit d'aspiration et qui, dans un sens de mouvement, peut être déplacé manuellement dans une position de libération libérant l'entrée d'air de balayage par cette ouverture d'air de balayage dans le conduit d'aspiration. Pour perfectionner l'aspirateur de manière à éviter une montée soudaine de la force d'actionnement manuelle nécessaire pour déplacer le corps de fermeture dans sa position de libération, le corps de fermeture est ouvert sur ses deux faces frontales (56, 64) et empêche, dans la position de fermeture, l'entrée d'air de balayage dans le conduit d'aspiration à l'aide d'au moins deux éléments d'étanchéité (60, 58, 52) qui coopèrent l'un avec l'autre et peuvent être déplacés l'un par rapport à l'autre dans le sens de mouvement.
EP11720800.9A 2010-05-31 2011-05-24 Aspirateur à alimentation en air de balayage Not-in-force EP2575586B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010029518A DE102010029518A1 (de) 2010-05-31 2010-05-31 Staubsauger
PCT/EP2011/058417 WO2011151217A1 (fr) 2010-05-31 2011-05-24 Aspirateur à alimentation en air de balayage

Publications (2)

Publication Number Publication Date
EP2575586A1 true EP2575586A1 (fr) 2013-04-10
EP2575586B1 EP2575586B1 (fr) 2014-03-19

Family

ID=44119215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11720800.9A Not-in-force EP2575586B1 (fr) 2010-05-31 2011-05-24 Aspirateur à alimentation en air de balayage

Country Status (3)

Country Link
EP (1) EP2575586B1 (fr)
DE (1) DE102010029518A1 (fr)
WO (1) WO2011151217A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013108559A1 (de) 2013-08-08 2015-02-12 Miele & Cie. Kg Verfahren zum Betrieb eines Staubsaugers zum Rückreinigen eines vom Staubsauger umfassten Filterelements
DE102016100780A1 (de) 2016-01-19 2017-07-20 Festool Gmbh Sauggerät
CN108903806B (zh) * 2018-08-17 2023-08-22 莱克电气股份有限公司 一种用于海帕自清洁式吸尘器的风道快速切换结构
CN108903805B (zh) * 2018-08-17 2023-07-04 莱克电气股份有限公司 一种用于海帕自清洁式吸尘器的电机底座
CN108937723B (zh) * 2018-08-17 2023-07-04 莱克电气股份有限公司 一种用于海帕自清洁式吸尘器的风道快速切换装置
CN108888171B (zh) * 2018-08-17 2023-07-25 莱克电气股份有限公司 一种反向吹风式自清洁吸尘器
DE102019117920A1 (de) 2019-07-03 2021-01-07 Alfred Kärcher SE & Co. KG Saugvorrichtung und Verfahren zur Abreinigung eines Filters
DE102023103425A1 (de) 2023-02-13 2024-08-14 Festool Gmbh Sauggerät mit einem Abreinigungsventil
DE102023133671A1 (de) 2023-12-01 2025-06-05 Alfred Kärcher SE & Co. KG Sauger mit Filter-Abreinigungseinrichtung-Modul
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EP2575586B1 (fr) 2014-03-19
DE102010029518A1 (de) 2011-12-01

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