EP3405089A1 - Aspirateur - Google Patents

Aspirateur

Info

Publication number
EP3405089A1
EP3405089A1 EP17700252.4A EP17700252A EP3405089A1 EP 3405089 A1 EP3405089 A1 EP 3405089A1 EP 17700252 A EP17700252 A EP 17700252A EP 3405089 A1 EP3405089 A1 EP 3405089A1
Authority
EP
European Patent Office
Prior art keywords
valve body
air valve
external air
actuating
suction device
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
EP17700252.4A
Other languages
German (de)
English (en)
Other versions
EP3405089B1 (fr
Inventor
Markus Barabeisch
Steffen Dirr
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.)
Festool GmbH
Original Assignee
Festool GmbH
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 Festool GmbH filed Critical Festool GmbH
Publication of EP3405089A1 publication Critical patent/EP3405089A1/fr
Application granted granted Critical
Publication of EP3405089B1 publication Critical patent/EP3405089B1/fr
Active 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
    • 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
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1436—Connecting plates, e.g. collars, end closures
    • A47L9/1445—Connecting plates, e.g. collars, end closures with closure means
    • A47L9/1454—Self-sealing closures, e.g. valves
    • 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
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1683—Dust collecting chambers; Dust collecting receptacles

Definitions

  • the invention relates to a suction device with a suction unit for generating a suction flow and with a suction housing, in which a dirt collection chamber is arranged, which has a suction inlet and via at least one filter and a suction channel assembly with the suction unit is fluidly connected to the suction channel arrangement between the filter and the suction unit is arranged at least one foreign air inlet closable by an external air valve, wherein the external air valve comprises an external air valve body for closing the forced air inlet, which is adjustable by adjusting an actuator along a travel between a closed the outside air inlet closed position and the outside air inlet releasing passage position in which the external air inlet incoming foreign air flows through the at least one filter for cleaning in the direction of Schmutzsammeiraums.
  • a suction device of this type is described for example in EP 1 340 446 A1.
  • a so-called countercurrent cleaning is performed.
  • the external air valve body is abruptly acted upon by vacuum provided by the suction unit in the passage position, so that external air can flow through the outside air inlet and the filter can flow in the direction of Schmutzsammeiraums, whereby particles adhering to the filter are repelled in the direction of the Schmutzsammeiraums.
  • the closing body is designed as a flap which has to be acted upon with a relatively high force, which is provided by an electromagnet, in the direction of the closed position. The construction is expensive.
  • WO 201 1/003441 A1 discloses a suction device whose outside air inlet is closed by a valve body which can be actuated by an energy storage device from a closed position into an open position.
  • the energy storage device is supplied by actuation of an actuator energy for storage.
  • a transmission gear is arranged, which allows an adjustment of the actuator via at least one clearance portion of the travel without effect on the Fremdluftventilkorper and on an operating portion of the travel of the Actuator releases the Fremdluftventilkorper to an adjustment from the closed position into the passage position and / or transmits an acting in the passage position actuating force of the actuator to the Fremdluftventilkorper.
  • the actuating member with the Fremdluftventilkorper is not firmly connected or directly connected, but via a transmission gear.
  • the transmission gear as a mechanical gear, has a kind of clearance over at least a partial path or portion of the travel, so that while an operator or a drive motor actuates the actuator, but the effect on the Fremdluftventilkorper fails on the clearance section.
  • the at least one clearance section can be used to further mechanical functions, for example, to tension one or more springs, for example, for resetting the external air valve body in the closed position and / or the actuator in can serve the starting position.
  • an opening spring is biased to open the at least one external air valve body or charged, so to speak, which is then released preferably abruptly to adjust the external air valve body in the passage position. It is possible that the external air valve body is actively adjusted by means of the actuating member so to speak in the direction of the passage position, for example, experiences a corresponding pressure force or pushing force. But it is also possible that the external air valve body is otherwise loaded, for example by spring force and / or negative pressure, in the direction of the passage position and is released on the actuating portion in the direction of the passage position.
  • the external air valve body may be multi-part, for example, comprise a plurality of closing bodies which are assigned corresponding to a plurality of external air inlets. Furthermore, it is possible that with a single actuator several separate external air valve body can be actuated or driven. Thus, the formulation foreign air valve body can also be called “at least one external air valve body", but this is not realized for reasons of simplicity and ease of understanding in the claims and the following description
  • the travel of the actuator extends for example from a starting position, which is associated with the closed position of the foreign air valve body, to an end position which is furthest away from the starting position. Between these positions, the operating section may be located. It is also possible that the actuating portion is close to the end position, for example.
  • the travel can be traversed, for example, oscillating by the actuator or in a movement back and forth. But it is also an example circular travel or rotational movement of the actuator conceivable to act on the transmission gear, whereby this rotational movement is associated with a corresponding clearance portion.
  • the at least one clearance section may comprise one or more clearance sections.
  • the at least one clearance portion of the travel includes a clearance portion extending between one of the closed position of the external air valve body associated with the starting position of the actuator and the actuating portion.
  • a corresponding spring accumulator or other energy storage can be charged by the actuator directly or by means of the transmission gear already on this clearance section.
  • the actuating member is accelerated on this, so to speak first clearance section or momentum brings, so that the external air valve body is actuated on the then subsequent operating section with a correspondingly large force or high speed in the direction of the passage position.
  • the actuator on a flywheel mass body.
  • a clearance portion which extends between the actuating portion and an end position of the actuating member, which is not associated with the passage position of the external air valve or is furthest away from the starting position of the actuating member.
  • the actuating member and / or the transmission gear form or have an adjusting device for adjusting the external air valve body in the direction of its closed position.
  • the actuator or the transmission gear on the one hand serve in the adjustment along the travel to release the external air valve body in the direction of its passage position or actively to operate, on the other hand but also to operate the external air valve body in the direction of its closed position or drive.
  • the suction device has an energy store for adjusting the external air valve body in the passage position or the closed position.
  • the energy store is used to provide a foreign air valve body in the direction of the passage position or closed position actuated the power.
  • the energy store may comprise, for example, at least one spring or a spring arrangement.
  • the spring or spring assembly includes, for example, a coil spring or a plurality of coil springs, a rubber-elastic buffer or the like.
  • the energy store may also comprise at least one fluidic memory, for example a pressure accumulator.
  • a pneumatic spring can be charged as energy storage.
  • the energy store can also be a memory for storing electrical energy, which can preferably be discharged abruptly, for example a capacitor.
  • the energy store can simultaneously form an adjusting device for adjusting the external air valve body in the passage position or the closed position or the adjusting device can be formed by the energy storage.
  • an adjusting device for adjusting the external air valve body in the passage position or the closed position or the adjusting device can be formed by the energy storage.
  • a spring that directly loads the external air valve body in the direction of the closed position such adjusting device and a corresponding energy storage at the same time.
  • the energy store prefferably be able to be charged along the at least one clearance section during actuation of the actuating member.
  • the energy store can advantageously be charged upon actuation of the actuator along at least two clearance sections or each clearance section.
  • the at least one clearance portion thus has a particular benefit, because it allows charging of the energy storage without thereby the foreign air valve body released or actuated in the direction of the passage position or actuated.
  • the energy store or the spring arrangement can also be charged or tensioned during an adjustment of the actuating member along the actuating portion.
  • the energy store is charged or tensioned during the entire or essentially the entire travel of the actuator. It is advantageous if the energy store is coupled to the actuating member and / or the transmission gear and / or the external air valve body as a respective actuating component, so that the energy storage is in a movement of the actuating component, ie the actuator, the transmission gear or the external air valve body, charged. If, for example, the external air valve body is actuated from the closed position into the passage position, it can charge or tension the energy store, for example a return spring. It is also possible that the transmission gear acts on the energy storage and thereby charges.
  • an energy store can be actuated, for example, by two actuating components, for example the transmission gear and the actuating member.
  • Preferred and shown in the drawing is that the energy storage is charged or tensioned by the actuator when it is adjusted along its travel.
  • the actuating member is loaded by a return spring in the direction of the starting position.
  • the actuator charges or biases the energy storage during its adjustment along its travel.
  • the actuator is preferably loaded by the energy storage, such as a spring assembly or the spring assembly in the direction of the starting position of the travel, which in turn is associated with the closed position of the valve body.
  • the actuator When the actuator is adjusted along the at least one clearance portion, it biases the spring assembly or charges the energy storage.
  • the energy storage acts on the external air valve body for adjustment in the passage position or the closed position via a force-amplifying transmission, for example the transmission gear.
  • the power boosting transmission may also include the actuator.
  • the force-amplifying transmission comprises, for example, a bevel gear, a lever gear or the like.
  • the power-boosting gearbox can be arranged for example on the actuator, for example in the manner of a bevel gear or wedge gear.
  • the power-amplifying transmission can also be formed at least partially by the actuating member, for example when this is designed as a lever with which the external air valve body is adjustable in the closed position.
  • the actuator may comprise, for example, an actuating lever or actuating slide.
  • the actuator is manually operable. But it is also possible that the actuator is driven by a servomotor or actuator, which forms part of the suction device. Also in this case, it is advantageous if the actuator has a certain clearance without effect on the external air valve body, this clearance is used, for example, to charge the already explained energy storage.
  • the actuator can be manually operated, for example, in case of failure of the servo motor in a kind of emergency operation.
  • the servomotor is coupled via a clearance gear with the actuator, so that this is necessary, even without resistance of the servomotor or with little resistance by the servo motor manually operable.
  • a servomotor amplifies a manual force on the actuator.
  • the actuating member or at least a manual operating region or portion of the actuator is arranged on an upper part or an upper side of the sucker housing.
  • the top or top of the nipple housing is easily accessible when using the suction device.
  • the operator exerts a force in the direction of the sucker housing, in particular in the direction of a substrate.
  • the actuating member has a manually actuable actuating region or actuating abutment. section, wherein the transfer section for adjusting the foreign-air valve body in the direction of the passage position passes through a path of movement in the direction of the nipple housing and / or to a substrate on which the suction device is placed.
  • the force direction of the actuating force or the travel thus does not pass tangentially on the sucker housing, but in the direction of the sucker housing.
  • the sucker housing makes a resistance or forms an abutment.
  • this abutment can be formed so to speak by the ground on which the suction device is parked when it is used.
  • the already explained movement path of the actuating portion is oriented so that it extends to the adjustment of the external air valve body in the direction of the passage position to a bottom side of the teat housing, which is directed to a substrate or associated with the ground.
  • the actuator is disposed on an upper or upper surface of the sucker housing, which is advantageous, the operator may exert force or pressure on the actuator downward toward the base of the sucker housing or direction, which is very ergonomic.
  • a force direction or actuation direction for manual actuation of the actuating member is oriented approximately vertically when using the suction device.
  • a transfer section of the actuator could steal upward in front of the vacuum device and be forced down by the operator in the direction of the vacuum housing.
  • the transfer section can also project laterally in front of the nipple housing and be pressed down by the operator.
  • the actuator is expediently slide-movable with respect to the nipple housing, for example by means of a sliding bearing, and / or pivotally mounted, for example by a pivot bearing.
  • a sliding bearing linear adjustability is advantageous.
  • the pivot bearing is a storage of the actuator in the manner of a pivot lever appropriate.
  • the actuator may comprise a slider or a corresponding pivoting lever or pivoting arm.
  • a swivel-slide storage possible, ie that the actuator is movably mounted for adjustment along the travel with multiple degrees of freedom of movement.
  • the transmission gear is configured to a sudden release of the external air valve body or a sudden transfer of the actuating force of the actuator to the external air valve body in the direction of the passage position.
  • a relatively long travel in which the operating portion is relatively short.
  • the at least one clearance portion at least twice as long, preferably at least three times as long as the operating portion.
  • the energy storage can be charged or stretched over a relatively long way of the actuator so that it provides correspondingly high forces necessary for adjusting the external air valve body.
  • the energy storage is particularly favorable in this constellation totechnischverstellen the external air valve body also abruptly or very quickly towards the closed position, so that the cleaning operation reaches a pulse-like quality, thus enabling optimal cleaning of the filter.
  • the travel of the actuator is significantly longer than a closing path of the external air valve body between the passage position and the closed position.
  • the travel of the actuator is at least 1, 5 times, preferably twice or three times longer than the closing path of the external air valve body.
  • the transmission gear has a pawl and / or step and / or inclined surface assigned to the actuating section and / or an actuating slide.
  • the latch or step for example, on the
  • Foreign air valve body may be arranged and by the transmission gear, at- For example, the operating slide, are released suddenly when the operating section is traversed.
  • a stage can be arranged for example directly on the actuator.
  • the external air valve body, for example, along a control section, which is located in front of the stage, are still held by the transmission gear or actuator in the closed position, but then free at the stage and thus abruptly get into the passage position.
  • an inclined surface is arranged at such a step, for example for braking the external air valve body before reaching the passage position.
  • the transmission gear for example, comprise a bevel gear. Furthermore, it is possible that the transmission gear comprises a lever mechanism.
  • the transmission gear as a lever may comprise the actuator or the actuator to act on a lever.
  • one of the aforementioned levers is used for adjusting the external air valve body in the direction of the closed position or passage position.
  • an inclined surface may be provided on which slides a driving portion of the external air valve body, so that is taken in the direction of its closed position in the adjustment of the actuator in the direction of its starting position of the external air valve body in the direction of the closed position.
  • the transmission gear to power amplification of the external air valve body in the direction of its closed position loading energy storage such as a spring assembly or a return spring
  • the spring arrangement act on the actuating member, so this actuate in the direction of its initial position, wherein the transmission gear, the restoring force of this spring arrangement still reinforced, for example via an inclined surface arrangement and / or a lever which may also be formed by the actuator.
  • the transmission gear acts on the external air valve body in the direction of the closed position.
  • the energy store for example the spring arrangement
  • the energy store to actuate the actuating member in the direction of the starting position and at the same time via an inclined surface gear, which is preferably arranged directly on the actuating body, the external air valve body adjusted in the direction of the closed position.
  • An inclined surface arrangement of the transmission gear for adjusting the external air valve body, in particular in its closed position has expediently a first inclined surface and a second inclined surface having different inclinations.
  • the inclined surfaces have different power gains.
  • this measure is advantageous in connection with the already explained energy storage or with a return spring.
  • a first inclined surface may be steeper than an adjoining second inclined surface, so that the second inclined surface provides a greater power gain for the restoring force or actuating force of the energy storage device than the first inclined surface.
  • the first inclined surface in turn can cause a very rapid or rapid adjustment.
  • the energy storage device via the first, steeper inclined surface very quickly moves the external air valve body in the direction of the closed position, while the second inclined surface then provides a greater power gain at the end of the travel for the final closure of the outside air inlet.
  • At least one inclined surface and at least one stage are arranged directly on the actuating member.
  • An advantageous embodiment provides that the at least one inclined surface for adjusting the external air valve body in the closed position and a release contour, in particular a step of the type motion coupled and / or with respect to the travel of the actuator are arranged one behind the other that initially at least one inclined surface for adjusting the Foreign air valve body in the closed position and then act on the release contour on the external air valve body or be effective in relation to this.
  • a driving area of the external air valve body is expediently accommodated so as to be movable in a slide of the actuating member.
  • the actuator can along a sliding path of the receptacle relative to the Fremdluftventilkorper be moved. So it is for example possible that the Fremdluftventilkorper remains in its closed position, while the actuator is already actuated in the direction of its open position or passage position of the external air valve body associated end position.
  • the recording on the actuator moves relative to the Fremdluftventilkorper, which in turn remains stationary and closes the external air opening. As soon as the external air valve body is released, it opens the forced air inlet, thus assuming its passage position.
  • the transmission gear has a particularly designed as an actuating slide actuating element which remains stationary on the at least one clearance portion unactuated by the actuator relative to the Fremd Kunststoffventilkorper and is taken by the actuator on the actuating portion for adjusting the external air valve body in the passage position ,
  • the actuating element is expediently loaded in its position holding the external air valve body in the closed position by a spring arrangement.
  • the actuating element may be a pivotally mounted component. Preferably, however, it is slidingly mounted, as also shown in the drawing.
  • the actuating element may be an actuating slide, with respect to which the actuating member is relatively displaceable or relatively pivotable in order to be able to move over the at least one clearance section relative to the actuating element.
  • the actuator by a driver with the actuating element, which in turn actively acts on the Fremdluftventilkorper in the direction of the passage position or, as shown in the drawing, the Fremdluftventilkorper to move releases in the direction of the passage position.
  • the external air valve body is loaded by a negative pressure of the suction unit in the direction of its passage position.
  • a negative pressure region of the suction unit or the dirt collecting space facing side, in particular a bottom of the external air valve body is provided for adjusting the third air valve body in the direction of the passage position.
  • the force of the suction unit or negative pressure which is present in particular in the dirt collecting space before the cleaning, is relatively large and is therefore particularly suitable for adjusting the external air valve body and thus for opening the forced air inlet. This measure contributes advantageously to a quick, sudden cleaning of the filter.
  • the suction device has an opening spring arrangement and / or a motorized opening drive, for example an electromagnet or an arrangement of electromagnetic drives, for actuating or driving the external air valve body in the direction of the passage position.
  • the opening spring arrangement comprises, for example, an opening spring, in particular a helical spring.
  • the opening spring is expediently supported, on the one hand, on a component which is firmly connected to the nipple housing or provided by the latter and, on the other hand, on the external air valve body.
  • the suction device has a closing spring arrangement and / or a motor-driven closing drive, in particular a spring drive, for actuating or driving the external air valve body in the direction of the closed position.
  • the external air valve body is acted upon by the closing spring in the direction of the closed position.
  • the closing spring is supported for example on External air valve body and on a connected to the nipple housing component or the nipple housing directly from.
  • the outside air inlet is preferably located on a wall of the sucker housing, for example on a cover of the sucker housing, next to the actuation chamber housing.
  • the outside air inlet can be arranged, for example, between an upper side of a cover of the sucker housing or a wall side of the sucker housing.
  • the actuation device has the actuating arrangement above the outside air inlet.
  • the external air valve body can be advantageously suspended or supported on the actuating assembly.
  • An advantageous embodiment provides that a linear adjusting axis of the actuating member and an adjusting axis of the valve body between the closed position and the passage position are at an angle to each other, for example orthogonal.
  • the suction device is preferably a mobile suction device, in particular a household vacuum cleaner or a workshop vacuum cleaner. Rollers are preferably arranged on the sucker housing.
  • the suction device may have a carrying handle
  • a filter bag or collecting container In the dirt collecting space, a filter bag or collecting container can be arranged.
  • the suction device can have a holder for a filter bag or collecting container.
  • Figure 1 is a perspective, longitudinally sectioned oblique view of a first
  • Suction device during normal suction operation shows an external air valve of the suction device according to Figure 1, in perspective from above,
  • FIG. 3 shows the view according to FIG. 1, but directly from the side
  • FIG. 4 shows the view according to FIG. 3, but in a cleaning operation
  • FIG. 5 shows a perspective oblique view of the external air valve according to the above figures in the closed position in normal suction operation
  • FIG. 6 shows a detail D from FIG. 5,
  • FIG. 7 shows the external air valve according to FIGS. 5, 6 when actuated in the direction of a passage position, which in FIG
  • FIG. 8 is shown
  • Figure 10 is a perspective obliquely from above shown external air valve of
  • Figure 1 the external air valve according to Figure 10, but in a passage position.
  • a suction device 10 is configured, for example, as a household vacuum cleaner or workshop vacuum cleaner. However, a stationary embodiment of the suction device 10 for a central extraction system is possible in principle.
  • a suction device 110 according to FIGS. 9-1 1 corresponds to the suction device 10 with respect to its suction housing and the basic functionality, so that the same reference numerals are used for the same components in the suction devices 10, 10. These will be explained below in connection with the suction device 10.
  • suction device 1 10 are partial Similar components as in the suction device 10 are provided, which are provided to identify differences with enlarged by 100 reference numerals.
  • the suction device 10 is shown in the drawing partially highly schematic. For example, it may have on its suction cup 12 rolls 1 1, with which it is rollable or turned off on a surface.
  • the sucker housing 12 has, for example, a lower part 20 and a cover 24.
  • the lower part 20 may be provided with the rollers 1 1.
  • On the lower part 20 is a suction inlet 18 for flowing a suction flow T, so with dirt, dust or the like loaded air flow, provided in a dirt collecting space 21.
  • a connecting piece 19 for connecting, in particular for attaching or plugging, a hose 16 is provided.
  • the hose may for example be connected or connectable at its other end region with a suction nozzle, a hand-held machine tool or the like.
  • the dirt collecting space 21 is provided, in which the suction inlet 18 leads into it. Between the dust inlet 18 and a
  • a filter 29 is arranged, which filters out in the suction flow T contained particles P, so that they are retained in the dirt collecting space 21.
  • an accumulation of dust or dirt S is formed on a bottom wall 22 of the sucker housing 12, in particular of the lower part 20.
  • the particles P usually fall downwards, ie towards the bottom wall 22, but at least partially adhere to a side surface 29A facing the dirt collecting space 21 , For example, a bottom of the filter 29 at.
  • the filter 29 is thus gradually contaminated with particles P in the suction operation of the suction device 10 or added.
  • the suction flow T Downstream, however, the suction flow T is purified by the filter 29, so that it forms a clean suction T2, so to speak, when it has a side surface 29B of the filter 29 flows in the direction of an air outlet 17.
  • the suction unit 15 is connected to the air outlet 17.
  • the air outlet 17 is provided on a suction channel arrangement 25, which is arranged downstream of the filter 29 with respect to the suction flow T.
  • the suction unit 15 is, for example, a conventional suction turbine and an associated drive motor, which is not explained in detail.
  • a suction turbine and drive motor suitable as a suction unit.
  • the Schmutzsammeiraum 21 is bounded by the bottom wall 22 and side walls 23. A front side wall 23 is not shown in the sectional views of the drawing.
  • the lower part 20 is covered by a cover 24, which is suitably detachable from the lower part 20, so that in the Schmutzsannnnelraunn 21 accumulated dirt can be easily removed.
  • a collecting container for example a filter bag, is arranged in the dirt collection chamber 21. On the other hand, in the cleaning operation explained above, such a filter bag is not necessary because the filter 29 is effectively cleaned.
  • the suction channel arrangement 25 is provided on the sucker housing 12, in particular on the cover 24.
  • a holder 27 for the filter 29 is attached to a cover wall 24A of the cover 24.
  • the filter 29 is inserted into an opening 24B of the cover wall 24A and closes it so that the dirt S is retained in the dust collection space or dirt collection space 21.
  • a holder 27 is preferably provided for the filter 29.
  • a side wall or peripheral wall 26 and above the filter 29 is a top wall 28 of the suction channel assembly 25 is provided.
  • the peripheral wall 26 and the top wall 28 may, for example, define a chamber and / or a suction channel of the suction channel arrangement 25 leading to the air outlet 17.
  • a forced air inlet 30 for scavenging air or external air F which, contrary to the flow direction of the suction flow T, can flow through the filter 29 and thus repel particles P adhering to the filter 29 in the direction of the dirt collecting space 21.
  • Both suction devices 10, 1 10 thus each have a forced air inlet 30, which can be flowed through by external air F for cleaning the filter 29.
  • external air F for cleaning the filter 29.
  • the external air inlet 30 can be closed by the external air valves 35, 135, wherein they occupy their closed position L and in the normal suction operation of the suction device 10 according to Figures 1 and 9, the suction flow T from the suction inlet 18 through the dirt collection chamber 21 and the filter 29 in the direction the air outlet 17 flows.
  • the forced air inlet 30 is opened by the external air valve 35, 135 in its passage position O, i.
  • the external air F can flow through the outside air inlet 30 and is sucked by the existing in the dust collection space 21 negative pressure volume or the pressure prevailing there, so to speak, whereby the filter 29 is cleaned of particles P.
  • the external air valve 35, 135 comprises an external air valve body 37, 137, which is configured in the manner of a plate 38, 138 or a plate 38, 138 has.
  • the at least partially dish-shaped external air valve body 37, 137 is in the closed position L to a valve seat 36, which extends around the outside air inlet 30.
  • the external air valve body 37, 137 abuts the valve seat 36, the outside air inlet 30 is closed.
  • a seal 39 is provided on the plate 38, 138 or on the valve seat 36 or both for sealing the outside air inlet 30.
  • the seal 39 advantageously has a damping function when the plate 38 or the external air valve body 37, 137 is moved in the direction of the outside air inlet 30 in the closed position L and strikes there.
  • the entrainment section 40 comprises connecting arms 41 which project from the external air valve body 37 and which are connected for connection to a support section or force transmission section 42 which is designed, for example, as a bridge 43 or has a bridge 43.
  • a support section or force transmission section 42 which is designed, for example, as a bridge 43 or has a bridge 43.
  • projections 46 of the connecting arms 41 are inserted in receptacles 45 of the bridge 43.
  • the bridge 43 extends between the connecting arms 41.
  • the bridge 43 serves to adjust the external air valve body 37 into the closed position L closing the forced air inlet 30 or the through opening O which opens the forced air inlet 30.
  • the driving portion 40 is displaceably mounted with reference to a sliding bearing 50 with respect to a valve base 31 having the outside air inlet 30 or with respect to the valve seat 36.
  • the valve base 31 is provided for example by the top wall 28 or is arranged on the top wall 28.
  • the bridge 43 can also be referred to as a support body, entrainment body or as a support bridge.
  • the sliding bearing 50 includes guide body 51.
  • the guide bodies 51 are for example in the form of supports 52 or columns 52 from the valve base 31 from. Between each pair of guide bodies 51, the guide portions 47 of the driving portion 40 are linearly guided. The guide portions 47 are provided on the bridge 43, for example.
  • the actuating arrangement 60 comprises an actuating member 61, for example a slide 62, which is adjustable relative to the valve base 31 along a control axis V.
  • the actuator 61 is on a guide body 53, which is extends across the outside air inlet 30 away and is arranged on the valve base 31, mounted linearly displaceable.
  • the guide body 53 is supported with support arms 54, 55 on the valve base 31.
  • the support arms 54, 55 are, for example, spider-like or spreizfußartig laterally from the in itself a longitudinal shape having guide body 53 from.
  • connecting members 59 are provided to connect the guide body 53 with the valve base 31 and / or the top wall 28.
  • the guide body 53 has a guide receptacle or guide contour 56 extending along the adjusting axis V, in which the slide 62 or the actuating member 61 is slidably received.
  • the actuating member 61 can not move transversely to the adjusting axis V, but only along the adjusting axis V.
  • the actuating member 61 has, for example, a guide contour 63 designed as a protruding rib or step, which engages behind the guide contour 56 or guide receptacle 56.
  • the actuating member 61 is loaded in its starting position VA shown in FIGS. 1-3 and 5 by a spring arrangement 71, for example comprising a helical spring.
  • the spring arrangement 71 is supported on an abutment 57 of the valve base 31.
  • a coil spring of the spring assembly 71 is received in a receptacle 58 of the abutment 57.
  • the helical spring or spring assembly 71 is supported on the slide 62 or actuator 61, for example on an abutment 72. Before the abutment 72 is a guide portion 73 for guiding the spring assembly or the coil spring 71 from. For example, the guide portion 73 engages in an interior of the coil spring 71 in the manner of a guide projection.
  • a free end portion 74 of the guide portion 73 is provided as a stop for abutment against the abutment 57, so that the actuating can move 61 along a travel VS between the initial position VA and limited by the abutment 57 end position VE.
  • the spring arrangement 71 forms an energy store 70, which is charged during the adjustment of the actuating member 61 from the starting position VA to the end position VE in order to move the external air valve 35 back out of the passage position O into the closed position L.
  • 61 inclined surfaces 67, 68 are arranged on the actuating member, which represent a total of actuating contours of a bevel gear 66.
  • the bridge 43 can slide along what, for example, sliding surfaces can be provided. However, the movement is facilitated by the fact that 43 rollers 44 are provided on the bridge, which can roll along the inclined surfaces 67, 68 along.
  • the actuating member 61 already begins to exert pressure on the helical spring of the spring arrangement 71 on a clearance section VF1 of the travel path VS, when an actuating force B acts on a manually actuatable actuating region 69 designed as an actuating arm, for example.
  • a gripping piece 69A on which an operator can press comfortably with, for example, a finger, can be arranged on the actuating region 69.
  • the external air valve body 37 remains unconfirmed, ie in the closed position L.
  • the driving section 40 for example the bridge 43, is still supported on the actuating element 81 of a transmission gear 80 during the movement of the actuating device 61 along the clearance section VF1 the foreign air valve body 37 holds in the closed position L.
  • two of the rollers 44 are supported on a holding surface 84 of the actuating element 81.
  • the actuating element 81 comprises, for example, a sliding body or a carriage.
  • the actuating element 81 is mounted displaceably on a guide 82 in the direction of the adjusting axis V.
  • the actuating element 81 has a gap 83 which is penetrated by the actuating member 61.
  • the inclined surfaces 67, 68 are arranged, wherein the inclined surfaces 67, 68 with respect to the support surface 84 are displaceable.
  • the driving portion 40 is optimally supported at spaced locations, the two retaining surfaces 84, laterally adjacent to the inclined surfaces 67, 68.
  • the actuating member 61 is displaceable relative to the actuating element 81 along the adjusting axis V, so that in the clearance section VF1 the actuating member 61 is displaceable independently of the actuating element 81 along the adjusting axis V with respect to the valve base 31.
  • the external air valve body 37 is loaded by the prevailing in the dirt collecting space 21 negative pressure U in the direction of the passage position O, so only in the closed position L, because the driving portion 40 on the actuating element 81, more precisely, the support surface 84 is supported.
  • the negative pressure U is in any case less than an atmospheric pressure A, which acts on the side facing away from the dirt collecting chamber 21 side of the external air valve body 37, 137.
  • the actuator 61 When the actuator 61 is further displaced toward the end position VE at the end of the clearance section VF1, it passes through an actuating section VB in which a driving stop 64 strikes against the actuating element 81 and carries it along in the direction of the end position VE.
  • the support surface 84 is pulled away, so to speak, under the rollers 44, the rollers 44 roll over an inclined surface 86 and an adjoining step 85 along and suddenly reach a stop surface 87, for example downwards in the drawing.
  • the external air valve body 37 suddenly opens the forced air inlet 30, through which then external air F or purge air flows in the direction of the filter 29.
  • the stop surface 87 limits the movement of the external air valve body 37 in the direction of the passage position D.
  • a height of the step 85 which could also be referred to as a release contour corresponds to the closing path W.
  • the actuator 61 may be suitably operated further in the direction of the end position VE, thereby further charging the energy storage 70.
  • the spring assembly 71 is thereby stretched further.
  • the actuating element 81 so to speak a carriage, can be taken further in the direction of the end position VE and passes through another clearance section VF2.
  • the external air valve body 37 remains in the adjustment of the actuator 61 along the clearance portion VF2 in the passage position O or at the end of the closing path W, thus remains unactuated.
  • the stop surface 87 extends correspondingly along the clearance portion VF2.
  • the actuating member 61 on the clearance section VF2 so to speak, takes momentum before the bevel gear 66 actively activates the external air valve body 37 in the direction of the closed position L.
  • the external air valve body 37 abuts the valve seat 36 and the driving portion 40 is raised so far that the support surface 84 is movable below the bridge 43 and the operating portion 42, enters a return stop 65 of the actuator 61 into engagement with the actuating element 81, the carriage, and takes this in the direction of the starting position VA, whereby the support surface 83 passes under the bridge 43 and its rollers 44 and thus the external air valve body 37 is fixed in the closed position L.
  • the inclined surface 86 can still be moved past the rollers 44 in order to actuate the external air valve body 37 with a corresponding actuating force in the direction of the closed position L and / or allow an adjustment of the holding surface 83 under the bridge 43.
  • an actuation force could run tangentially to the sucker housing 12, so that an operator would have to support it, for example, against rolling away.
  • a deflection gear between the actuator 61 and the external air valve 35 is provided so that the operator with an operating force in the direction of a substrate on which the suction device 10 is turned off, could exercise.
  • a servomotor 88 for adjusting the actuating member 61 along the adjustment path VS would also be possible (shown schematically in FIG. 7).
  • the servomotor 88 could include a pinion meshing with a rack portion on the actuator 61.
  • the servo motor could, for example, be motion-coupled with the actuating member 61 in the direction of the end position VE, but have a freewheel in the direction of the starting position VA.
  • an actuating force B is advantageously directed in the direction of a substrate or a bottom side of the sucker housing 12, so that in this case also a corresponding actuating force B can be exerted on an actuating member 161 on the basis of a corresponding actuator or servomotor 288 is convenient but also a manual operation by an operator.
  • the servomotor 288 has a linearly adjustable actuator 289 to apply the operating force B.
  • the servomotor 288 may be, for example, a pneumatic drive, an electromotive linear drive or the like.
  • the external air valve body 137 of the external air valve 135 has a driving portion 140 which can be actuated in the region of a transmission section 142 by an actuating arrangement 160. Also, the external air valve body 137 is loaded by the negative pressure U in the direction of the passage position O, but is held by the actuator assembly 160 in the closed position L.
  • the actuating member 161 comprises an actuating lever 162, which is pivotally mounted on a pivot bearing 150.
  • the pivot bearing 150 includes, for example, a bearing block 152 protruding from the valve base 31. On the bearing block 152, for example, a bearing pin is held, which engages a bearing receptacle 151 at an end region of an arm portion 167 of the actuating lever 162.
  • the external air valve body 137 can be actuated from the open position O in the closed position L.
  • the entrainment receptacle 142 is arranged between the arm section 167 and a further arm section 168, at the free end region of which an actuating element 168 is arranged.
  • range 169 is provided for gripping or for actuation by an operator.
  • a head 143 is supported on the free end region of the actuating projection 141 on the side of the actuating lever 162 facing away from the external air valve body 137, with the result that the actuating lever 162 entrains the external air valve body 137 in the closed position L.
  • a lever mechanism 166 is formed, which actuates the external air valve body 137 in the direction of the closed position L in the sense of a power boost.
  • the actuating member 161 is loaded in the direction of a closed position L associated with the starting position VA by an energy storage 170.
  • the energy store 170 comprises a spring arrangement 171, for example a helical spring.
  • the spring arrangement 171 is supported, on the one hand, on an abutment 157 with respect to the valve base 31 having the outside air inlet 30, and on the other hand on the arm section 168.
  • a receptacle 173 for the spring of the spring arrangement 171 is provided.
  • a receptacle 158 is provided for the spring of the spring assembly 171.
  • the energy storage 170 or the spring arrangement 171 acts on the same in the end region of the actuating lever 162 remote from the pivot bearing 150, which acts in the sense of a force amplification.
  • This contributes to the fact that the external air valve body 137 is acted upon with a relatively large force, in any case with a force amplification for a control force of the energy accumulator 170, in the direction of the closed position L.
  • the actuating region 169 pivots about the pivot axis of the pivot bearing 150. Over almost the entire pivoting path of the actuating region 169, which represents a travel VS, the energy storage 170 can be charged or the spring arrangement 171 can be tensioned.
  • the actuating member 161 starting from the initial position VA, first passes through a clearance section VF1, in which the spring arrangement 171 is tensioned, but the external air valve body 137 still remains in the closed position L, ie is not released.
  • the corresponding movement can be seen for example from the Zusannnnenschau of Figures 9 and 10.
  • the driving receptacle 156 moves along the driving portion 140, so that the head or pin 143 is released from the operating lever 161, that protrudes in front of this (see Figure 10).
  • the spring assembly 171 is already stretched.
  • an actuation projection 163 engages with an actuation element 181 of a transmission gear 180.
  • the actuation element 181 comprises, for example, a slide which is displaceably mounted on a guide 182 with respect to the valve base 31 is.
  • the slider or actuator 181 has a retaining projection or holding portion 184 which, in the positions shown in FIGS. 9 and 10, engages or engages with a retaining surface 144 provided on the driving portion 140.
  • the holding surface 144 is located, for example, on a holding projection 147 which protrudes from the driving portion 140 or the actuating projection 141.
  • the actuator 181 is rod-shaped. It is, for example, slidably received along the adjusting axis V in a guide receptacle 183 of a bearing element 185, so that it is movable out of engagement with the holding surface 144.
  • the actuating element 181 is loaded, for example, by a spring arrangement 186, for example a helical spring, into the holding section holding the entrainment section 140 and thus holding the external air valve body 137 in the closed position L, ie into engagement with the holding surface 144.
  • a spring arrangement 186 for example a helical spring
  • the spring arrangement 186 is supported on the one hand on an abutment surface 187.
  • the abutment surface 187 is provided, for example, at an end region opposite to the end region having the holding section 184.
  • the spring arrangement 186 is supported, for example, on a support surface 188 of the valve base 31 from, for example, on the outer circumference of a receptacle 158 having cylindrical surface.
  • an actuating projection 163 is provided on the actuating member 161.
  • the actuating projection 163 engages in a driving receptacle 189 of the actuating element 181.
  • a driving contour 164 acts against a stop region or longitudinal end region of the driving receptacle 189 in order to move the actuating element 181 away from the holding surface 144 or from the driving portion 140, ie thus the external air valve To release body 137 so that it passes through the application of the negative pressure U in the direction of the passage position O. This happens abruptly, since in principle the external air valve body 137 is released, so to speak, from the closed position L.
  • the external air valve body 137 strikes in the passage position O with the head 143 on the actuator 161.
  • an actuating bevel 146 is provided thereon, which has a tendency to displace the actuating element 181 into the release parting.
  • the actuating element 181 preferably slides along the actuating slope 146 with a bevel 190.
  • a bevel gear or wedge gear is provided to actuate the actuator 181 in the adjustment of the external air valve body 137 or the driving portion 140 in the direction of the closed position L.
  • a reset contour 165 abuts the actuating projection 163 on the driving receptacle 189 and so actuates the actuating element 181 in the direction of the release pitch when the actuator 161 pivots in the direction of the starting position VA. It is understood that between the end position VE and the operating portion VB still another clearance portion, which is not designated in the drawing, may be provided to further charge the energy storage 170 and to tighten the spring assembly 171 stronger, so that the force for resetting the external air valve body 137 in the closed position L is correspondingly larger.
  • slide-movable actuating elements 81, 181 could also be provided a pivotable component, such as a hook which engages under the bridge 43 or the support surface 144 and can be deflected by the actuators 61, 161 on the operating portion VO in a disengagement or release position.
  • a pivotable component such as a hook which engages under the bridge 43 or the support surface 144 and can be deflected by the actuators 61, 161 on the operating portion VO in a disengagement or release position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un aspirateur (10) comprenant une unité d'aspiration (15) destinée à générer un courant d'aspiration et comprenant un boîtier d'aspirateur (12) dans lequel est disposée une chambre collectrice de poussière (21) qui comporte une entrée d'aspiration (18) et est en liaison fluidique avec l'unité d'aspiration (15) par le biais d'au moins un filtre (29) et d'un ensemble conduit d'aspiration (25). Au moins un orifice d'entrée d'air extérieur (30) pouvant être fermé au moyen d'une valve d'air extérieur (35, 135) est disposé sur l'ensemble conduit d'aspiration (25) entre le filtre (29) et l'unité d'aspiration (15). La valve d'air extérieur (35, 135) comprend un obturateur (37, 137) pour fermer l'orifice d'entrée d'air extérieur (30), lequel obturateur peut être déplacé, par déplacement d'un organe d'actionnement (61; 161) le long d'une course de réglage (VS), entre une position de fermeture (L) de l'orifice d'entrée d'air extérieur (30) et une position de passage (O) libérant l'orifice d'entrée d'air extérieur (30). Dans la position de passage, l'air extérieur (F) qui entre par l'orifice d'entrée d'air extérieur (30) traverse le filtre (29) pour le nettoyage dudit filtre en direction de la chambre collectrice de poussière (21). Un mécanisme de transmission, disposé entre l'organe d'actionnement (61; 161) et l'obturateur (37, 137), permet de déplacer l'organe d'actionnement (61; 161) sur au moins une partie libre (VF1, VF2) de la course de réglage (VS) sans effet sur l'obturateur (37, 137), et libère l'obturateur (37, 137) pour un déplacement de la position de fermeture (L) jusqu'à la position de passage (O) sur une partie d'actionnement (VB) de la course de réglage (VS) de l'organe d'actionnement (61; 161), ou transmet, à l'obturateur (37, 137), une force de réglage de l'organe d'actionnement (61; 161), qui agit dans la position de passage (O).
EP17700252.4A 2016-01-19 2017-01-11 Aspirateur Active EP3405089B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016100780.3A DE102016100780A1 (de) 2016-01-19 2016-01-19 Sauggerät
PCT/EP2017/050491 WO2017125298A1 (fr) 2016-01-19 2017-01-11 Aspirateur

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EP3405089A1 true EP3405089A1 (fr) 2018-11-28
EP3405089B1 EP3405089B1 (fr) 2020-01-01

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US (1) US10729299B2 (fr)
EP (1) EP3405089B1 (fr)
CN (1) CN108697287B (fr)
DE (1) DE102016100780A1 (fr)
DK (1) DK3405089T3 (fr)
WO (1) WO2017125298A1 (fr)

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US11246465B2 (en) 2019-02-20 2022-02-15 Omachron Intellectual Property Inc. Surface cleaning apparatus having an energy storage member and a charger for an energy storage member
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Also Published As

Publication number Publication date
CN108697287B (zh) 2020-10-16
CN108697287A (zh) 2018-10-23
US20190014963A1 (en) 2019-01-17
EP3405089B1 (fr) 2020-01-01
DK3405089T3 (da) 2020-04-06
DE102016100780A1 (de) 2017-07-20
WO2017125298A1 (fr) 2017-07-27
US10729299B2 (en) 2020-08-04

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