EP4153018A1 - Rückentragbares batteriebetriebenes sauggerät - Google Patents
Rückentragbares batteriebetriebenes sauggerätInfo
- Publication number
- EP4153018A1 EP4153018A1 EP20727219.6A EP20727219A EP4153018A1 EP 4153018 A1 EP4153018 A1 EP 4153018A1 EP 20727219 A EP20727219 A EP 20727219A EP 4153018 A1 EP4153018 A1 EP 4153018A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction device
- collecting container
- suction
- technical unit
- housing
- 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
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
- 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
-
- 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
- A47L9/1409—Rigid filtering receptacles
-
- 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
- A47L9/1481—Means for removing bags in suction cleaners, e.g. ejecting means; Means for exchanging bags
-
- 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
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
- A47L9/2884—Details of arrangements of batteries or their installation
-
- 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
- A47L9/32—Handles
- A47L9/322—Handles for hand-supported suction cleaners
-
- 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
- A47L9/32—Handles
- A47L9/327—Handles for suction cleaners with hose between nozzle and casing
Definitions
- the present invention relates to a backpack, battery-operated suction device, comprising a collecting container, a technical unit connected to the collecting container in an operating position of the suction device and a backpack device connected to the collecting container and / or the technical unit in the operating position for carrying the suction device on the back of an operator.
- a suction device of the type described at the outset is known, for example, from DE 10 2016 112 420 A1.
- the suction device also referred to as a dust collector of the back-carried type
- the emptying of the collecting container can only be carried out with great effort.
- a cleaning of the collecting container is also only possible with increased effort.
- this object is achieved according to the invention in that the collecting container is made of a foamed plastic material and that the collecting container can be removed from the technical unit without tools.
- a suction device developed in this way has the particular advantage that the overall weight of the suction device can be significantly reduced by making the collecting container from a foamed plastic material. Designing the collecting container to be removable from the technical unit, in particular without tools, also has the advantage that the emptying of the Collection container, with or without a dust collection bag, is significantly simplified.
- the collecting container can be arranged in the direction of gravity below the technical unit, which enables easy access to the collecting container.
- such a configuration also allows collecting containers of different sizes to be used and connected to the technical unit, depending on the intended use. Overall, a suction device with very good ergonomics can also be designed in this way.
- the suction device comprises a suction device.
- the technical unit can comprise the suction device.
- an independent unit can be formed from which the collecting container can be easily removed without tools.
- Toolless in this sense means in particular that no additional tools such as wrenches, screwdrivers or the like are required to separate a connection between the collecting container and the technical unit. All elements that are required to separate the tech nikaji and the collecting container are arranged or Oilbil det in a tool-free configuration on the suction device in this sense and can be operated by an operator with one hand or several hands.
- the technical unit preferably comprises a control device which interacts with the suction device.
- Actuating elements and display elements of the suction device can be arranged or designed to work together. All such components, which include current-carrying or current-carrying components, are preferably arranged or formed on the technical unit.
- the technical unit preferably comprises a housing.
- a housing makes it possible, in particular, to protect all of the components comprised by the technical unit, that is to say for example the suction device or the control device.
- the housing is made from a plastic material.
- the plastic material can be a thermosetting plastic or a thermoplastic or contain a mixture of thermosetting plastics and / or thermoplastics.
- the plastic material can in particular also be a glass fiber reinforced plastic. In this way, the housing can be designed simply and inexpensively and also with an acceptable weight.
- the housing can be easily manufactured if it is formed by injection molding. In particular, it can be formed by a compact injection molding process.
- the suction device comprises a battery.
- the battery can be designed in the form of a rechargeable battery.
- the battery can in particular be permanently installed on the suction device so that it cannot be separated from the suction device by a user when the suction device is used as intended.
- the battery can in particular be arranged in or on the technical unit. If the battery is permanently installed on the suction device, a charging facility is provided on the suction device to charge the battery without removing it from the suction device.
- the suction device In order to be able to use, in particular, different batteries, for example from original equipment manufacturers (OEM), with the suction device, it is advantageous if the Technology unit and the battery are mechanically and electrically completely separated from one another in a disconnected position and are mechanically and electrically coupled to one another in a coupling position. For example, such a configuration makes it possible to separate a discharged battery from the suction device and replace it with a charged battery. This means that the suction device can continue to be used immediately after the battery has been replaced as described.
- OEM original equipment manufacturers
- the suction device preferably comprises a coupling device for mechanically coupling the battery to the housing of the technical unit.
- a coupling device enables the battery to be securely connected to the suction device when the suction device is in use.
- the coupling device can in particular also be designed in such a way that an electrical connection is established between the technical unit and the battery in order to be able to supply electrical components of the technical unit with electrical energy from the battery.
- the technical unit or its housing can comprise part of the coupling device.
- the technical unit is preferably arranged between the battery and the collecting container.
- the collecting container can also be separated from the technical unit in this way without the battery having to be removed from the technical unit.
- the housing has a housing top and a housing bottom, if the housing top and the housing bottom face in opposite directions and if in the operating position the The battery is connected to the top of the housing and the bottom of the housing to the collection container.
- This refinement makes it possible in a simple manner to form a stable connection between the technical unit and the battery on the one hand and the technical unit and the collecting container on the other hand, moreover independently of one another.
- the information on the upper side of the housing and the lower side of the housing relate to an orientation when the suction device is being used as intended, i.e. when it is carried on the back by an operator.
- the suction device can be made particularly compact if the underside of the housing closes the collecting container in the operating position.
- the underside of the housing can close a collecting container upper side of the collecting container.
- Such a configuration makes it possible in particular to pull the collecting container down from the technical unit in order to empty the collecting container. It is not absolutely necessary for the operator to remove the suction device from his back.
- An air duct inlet is preferably arranged or formed on the underside of the housing. This embodiment makes it possible, in particular, to direct air flowing into the collecting container from the latter through the air duct inlet to a suction device in the technical unit.
- the air duct inlet is expediently connected in a fluidically effective manner to a negative pressure side of the suction device.
- air can be routed from the collecting container through the air duct inlet to the suction device.
- large cross-sections of the air duct can be achieved and the associated very good performance data of the suction device, in particular a high negative pressure and thus an improved suction power.
- the technical unit is at least partially surrounded by a protective housing.
- the technical unit and all of the components it encompasses, in particular a housing thereof, can additionally to be protected.
- the material from which the protective housing is made damage to objects and buildings can also be minimized when the suction device comes into contact with them.
- the protective housing is made in one piece or in several parts, in particular in two parts. Depending on the construction of the suction device, assembly of the same can be simplified if the protective housing is made in one piece, in particular monolithically, or in several parts.
- the suction device can be installed in a particularly simple manner if the protective housing or components thereof are designed so that they can be connected to the technical unit and to one another without tools.
- a first latching or snap connection device can be provided for connecting the parts described.
- the first latching or snap connection device can in particular comprise interlocking latching or snap connection elements which are arranged or formed on the one hand on the technical unit and on the other hand on the protective housing or components thereof. These can be brought into engagement with one another without the aid of tools, that is to say in particular without the use of wrenches, screwdrivers or the like.
- the suction device can, in particular, be designed with a low weight if the protective housing is made of a foamed plastic material. In particular, it can be formed from the same foamed plastic material as the collecting container. In particular, the production of the suction device can also be simplified, since only a minimal number of different materials is required for its production.
- the suction device can be designed simply and inexpensively if the foamed plastic material is or contains expanded polypropylene (EPP).
- EPP expanded polypropylene
- the back carrying device comprises a carrying frame and two shoulder straps arranged or formed on the carrying frame.
- the shoulder straps can in particular be arranged or designed symmetrically on the support frame, so that the suction device can be ergonomically worn symmetrically on the back of an operator.
- the shoulder straps can be designed to be adjustable in length in order to enable people of different sizes to comfortably carry the suction device.
- the technical unit is connected to the support frame.
- the technical unit and the support frame can be connected to one another in such a way that an operator cannot separate the two components as intended.
- a defined positioning of the suction device on the operator's back can be specified.
- the overall stability of the suction device can be improved in this way.
- the back carrying device in particular the carrying frame, is connected to the protective housing.
- This configuration made it possible in particular to release the protective housing with the associated back support device as a unit from the technical unit without having to solve the connec tion between the back support device, in particular the support frame, and the protective housing. For example, maintenance of the suction device can be simplified.
- the protective housing is arranged between the support frame and the technical unit.
- the support frame and the technical unit can be connected to each other through the protective housing, for example screwed by means of screws.
- the suction device can then initially be assembled the protective housing is coupled to the technical unit and then the support frame is connected to the technical unit.
- the support frame can then be connected to the technical unit without these directly touching one another.
- the protective housing acts like a kind of spacer.
- the protective housing is made of a softer material than the housing, it is also possible to improve wearing comfort for an operator.
- the back carrying device in particular the carrying frame, can also only be connected to the protective housing, so that a connection between the technical unit and the back carrying device takes place indirectly via the connection between the technical unit and the protective housing on the one hand and between the protective housing and the back carrying device on the other hand.
- the collecting container defines a receiving space and comprises a collecting container top, a collecting container underside and a circumferential collecting container wall extending from the collecting container underside to the collecting container upper side and if the collecting container upper side is open.
- the upper side of the collecting container can be completely or essentially completely open.
- the circumferential collecting container wall comprises a rear wall section, a front wall section opposite this and two oppositely extending side wall sections connecting the rear wall section and the front wall section to one another.
- This configuration makes it possible in particular to form a cuboid or a substantially cuboid collecting container.
- a suction connection connected or connectable to a suction hose is preferably arranged or formed on the collecting container.
- the suction connection is formed on one of the two side wall sections. Dirt can be sucked into the collecting container through the suction connection.
- An arrangement of the suction connection on one of the two side wall sections in particular enables ergonomic handling of the suction device, because an operator can then easily grasp and guide a suction hose extending laterally away from the collecting container.
- the handling of the suction device can be further improved if it comprises a suction hose which, on the one hand, can be or is connected to the suction connection and, on the other hand, has a suction nozzle and / or can be coupled to a suction nozzle or a suction pipe.
- One end of the suction hose can therefore be connected to the suction connection or it can be permanently connected to it.
- the other end of the suction hose can be designed in the form of a suction nozzle or in such a way that it can be temporarily or permanently connected to a separate suction nozzle, for example a floor suction nozzle or the like, or a suction pipe.
- the suction device can be used universally for different cleaning purposes.
- the suction device comprises a suction pipe and if the suction pipe can be coupled to the suction hose on the one hand and has a suction nozzle on the other hand and / or can be coupled to a suction nozzle.
- a suction tube has the particular advantage that an operator can conveniently vacuum a floor without having to bend down.
- the suction tube gives the suction channel formed in it improved stability and guidance compared to a suction channel formed in a suction hose.
- a wide variety of suction nozzles can optionally be coupled to the suction tube, depending on the intended use. It is advantageous if the upper side of the collecting container is designed to be mirror-symmetrical with respect to two mutually perpendicular mirror planes.
- Such a configuration makes it possible in particular, regardless of a specific shape of the upper side of the collecting container, that the collecting container can be coupled to the technical unit in at least two positions rotated by 180 ° relative to one another.
- This has the particular advantage that when a single suction connection is arranged or formed on a lateral wall section of the collecting container, the collecting container can be easily rotated by 180 ° into engagement with the technical unit in order to operate the suction device for left-handers and right-handers in the same way. In other words, only one type of collecting container is required, which can be positioned differently relative to the technical unit.
- the two mirror planes preferably intersect in a straight line of intersection, the straight line of intersection defining a longitudinal axis of the collecting container.
- the straight line of intersection can run parallel to the direction of gravity when the suction device is used as intended.
- the collecting container is designed as a whole mirror-symmetrically or essentially mirror-symmetrically with respect to the two mirror planes.
- Essentially mirror-symmetrical means in particular that the collecting container is symmetrical apart from a suction connection which is arranged or formed on one side, i.e. asymmetrically, and which causes the collecting container to deviate overall from a double mirror symmetry.
- the suction connection can, however, be designed in such a way that it is designed symmetrically with respect to one of the two mirror planes.
- the lower side of the housing is preferably designed to be mirror-symmetrical with respect to the two mirror planes.
- the top of the collecting container is also designed to be mirror-symmetrical with respect to the two mirror planes.
- Conical in this sense means that mutually interacting clamping surfaces of the technical unit and the collecting container are inclined relative to the longitudinal axis of the collecting container, for example, with the surfaces abutting one another in the operating position running parallel to one another.
- a circumferential first clamping surface is formed on the collecting container, which has a cross-section that increases in the direction of the technical unit.
- This configuration makes it possible in particular to provide a correspondingly inclined circumferential clamping surface on the technical unit, which then engages in the collecting container and rests against the first clamping surface in the operating position.
- a circumferential second clamping surface is an isaded det on the housing, which rests against the first clamping surface in the operating position.
- a clamping connection between the collecting container and the technical unit can be implemented in a simple manner by the cooperating first and second clamping surfaces.
- an optimal sealing of the collecting container can be realized in a simple and inexpensive manner without additional sealing elements.
- the suction device comprises a safety device for securing a connection between the collecting container and the technical unit in the operating position. If the collecting container and the technical unit are clamped with each other in the operating position in the manner described, for example, the safety device serves the purpose of additionally securing this clamping connection. Is the collection container in Arranged in the direction of gravity below the technical unit, the securing device thus prevents the collecting container from being inadvertently detached from the technical device due to the acting weight.
- the safety device can be designed in a simple manner if it comprises at least one safety element which holds the collecting container in the operating position on the technical unit.
- the at least one securing member can be designed in the form of a hook which engages with a corresponding recess in the operating position.
- a hook can optionally be formed on the technical unit or on the collecting container or on the backpack device.
- a securing member in the form of a band can also be provided which surrounds the collecting container. Free ends of the tape are, for example, arranged or fixed on the technical unit or on the technical unit and on the back support device.
- the at least one securing element in the operating position engages at least partially around the collecting container and is connected on the one hand to the carrying device and on the other hand to the technical device.
- the at least one securing element can encompass the underside of the collecting container and thus prevent a movement of the collecting container away from the technical unit due to an acting weight.
- the at least one securing member can, for example, be connected to the front side of the housing or be designed to be connectable. A releasable ability to connect the at least one securing member to the housing makes it possible in particular to release the collecting container by releasing the connection in order to separate it from the technical unit for emptying.
- the suction device comprises a tool-free coupling mechanism for releasably connecting the at least one securing member to the carrying device and / or to the technical unit.
- one end of the at least one securing member can either be fixed to the Technology unit or be connected to the back carrying device, the other end of the at least one securing member, on the other hand, releasably connectable to the other component of the suction device. This in particular simplifies handling of the suction device, since only one end of the securing member has to be released to release the collector.
- the tool release coupling mechanism can, for example, comprise a hook with a tensioning lever in order to loosen the at least one securing element, which can be designed in the form of a band, for example, by pivoting the tensioning lever, whereby a hooked free end of the at least one securing element, for example from the Can solve the technical unit.
- the reverse procedure can then be used to secure.
- the suction device comprises a permanent filter and that the permanent filter is held in an operating position between the technical unit and the collecting container.
- a permanent filter prevents in particular that coarse dirt can get out of the collecting container into the technical unit, in particular in this arranged suction device.
- the permanent filter preferably comprises a holding frame and a filter element held on the holding frame.
- the filter element can be designed, for example, in the form of a fleece. Such a permanent filter can be handled in a particularly simple manner and can be exchanged if necessary.
- the holding frame has a circumferential Klemmwandab section, if the clamping wall section has two away from each other white transmitting clamping surfaces and if the clamping surfaces in the operating position rest on the one hand on the first clamping surface and on the other hand on the second clamping surface.
- Designing the holding frame in this way makes it possible in particular to arrange the permanent filter, if it is needed, directly clamping between the collecting container and the technical unit.
- the clamping surfaces for example conically designed as described, make it possible to use the suction device with or without such a permanent filter. To insert the permanent filter, no additional elements have to be provided, neither on the holding frame nor on the technical unit or on the collecting container.
- the suction device comprises a particulate filter which closes the air duct inlet in the operating position.
- the particulate filter can for example comprise a particulate filter element in the form of a HEPA filter.
- HEPA filters fall into filter classes H13 and H14 according to EN1822-1: 2009.
- the particulate filter is advantageously coupled to the technology unit. This enables a user to use the suction device with the particulate filter, but to do without the permanent filter. The particulate filter is then securely held on the technical unit and does not fall off when the collecting container is separated from the technical unit for emptying.
- the suspended matter filter is arranged or formed in the operating position between the permanent filter and the air duct inlet.
- the suspended matter filter can close the air duct inlet as described, so that the air flowing through the suction device must always flow through the suspended matter filter.
- the HEPA filter comprises a HEPA filter frame and a HEPA filter element held on this and if the HEPA filter frame is coupled to the technical unit in the operating position.
- the particulate filter frame can be coupled to the technical unit by a second latching or snap connection device.
- Such a connection enables the suspended matter filter to be easily and quickly detached and reconnected to the technical unit.
- the HEPA filter element can be held loosely on the HEPA filter frame so that it can be quickly and easily exchanged and cleaned if necessary in the event of contamination.
- the suction device comprises a fan.
- the fan can comprise a rotatably mounted rotor which is driven by an electric motor.
- it can be an electronically commutated motor. Compared to a brush motor, which in principle would also be conceivable, such an EC motor has a longer service life.
- the fan is preferably arranged or formed in a blower chamber formed on the housing. This makes it possible in particular to design the housing itself for optimal air flow.
- the blower chamber can be optimized for the dimensions of a rotor in order to obtain the most efficient suction flow possible with the least amount of energy.
- a blow-out opening is arranged or formed on the suction device and if a pressure side of the suction device is connected to the blow-out opening in a fluid-effective manner.
- This configuration makes it possible, in particular, to divert air conveyed by the suction device in a targeted manner.
- the blow-out opening can be arranged anywhere on the suction device.
- the blow-out opening preferably comprises several blow-out slots.
- the blow-out slots are arranged or formed on the housing.
- an air duct can then be passed through the air duct inlet described on the underside of the housing, to the negative pressure side of the suction device, through the suction device to the pressure side of the suction device and from this to the exhaust opening, in particular completely inside the housing of the technical unit.
- the collecting container is then this air duct described upstream, so that contamination, for example, through a suction hose or a suction pipe, which are fluidically connected to the suction connection on the collecting container, into the collecting container and through the upper side of the collecting container and, if necessary, through the permanent filter and / or the suspended matter filter to the air duct inlet Technical unit can be directed.
- the protective housing can also partially limit the air flow on the pressure side.
- the protective housing can at least partially have a double function, namely on the one hand to protect the housing of the technical unit from damage and at the same time to limit part of the air duct, that is to say of the air ducting channels formed in the suction device.
- the blow-out opening is arranged or formed on a front side of the suction device.
- a front side in this sense forms the side of the suction device facing away from the backpack device. Air flowing out of the suction device can escape freely. In this way, a flow resistance can be minimized, whereby the performance values of the suction device can be improved.
- the blow-out opening is preferably arranged or formed on the technical unit. This makes it possible in particular to form the blow-out opening on the housing of the technical unit, which is preferably made in one piece. In this way, the number of parts required to form the suction device can be minimized and assembly of the same can be simplified.
- the blow-out opening is preferably formed on a front side of the technical unit. The front side can in particular be the front side of the housing that faces away from the back carrying device.
- the exhaust opening defines at least two outlet areas when an air ducting device is arranged on the technical unit or is formed when the air duct device comprises at least two separate air ducts, each of which is fluidly connected on the one hand to the pressure side of the suction device and on the other hand to one of the at least two outlet areas.
- the at least two separate air ducts can also be partially delimited by the protective housing.
- a design with at least two air ducts separated from one another has the particular advantage that cross sections of the same can be optimized in order to convey identical or essentially identical volume flows of air through identical large outlet areas. In this way, flow conditions on the suction device can be optimized and its performance improved.
- feet are arranged or formed on the collecting container ter. This makes it possible in particular to place the suction device on its feet.
- the feet are favorably formed on the collecting container.
- they can project outwards, that is to say pointing away from the receiving space.
- the suction device can be safely and stably placed in an upright position, in particular with the longitudinal axis of the collecting container parallel or essentially parallel to the direction of gravity.
- the suction device For handling the suction device, it can also be advantageous if it comprises a suction bag, if the suction bag has a suction bag opening, if the suction bag is arranged in the collecting container and if the suction bag opening and a suction connection of the suction device are fluidically connected to one another in the operating position. Air flowing into the suction device with the dirt it contains is thus directed through the suction connection directly into the suction bag. If this is air-permeable, the air can flow through the suction bag, but dirt in the air flow is retained.
- the suction bag is preferably air-permeable. In this way, air flowing into the collecting container can flow through the suction bag, but soiling contained in the air flow cannot. These are retained in the suction bag. A suction bag can be easily removed from the collecting container. This allows easy disposal of the dirt sucked up with the suction device.
- At least one holding element for an accessory is arranged or formed on the backpack device.
- the holding element can be designed to hold a suction pipe or a suction hose.
- the holding element on the support frame can be arranged facing away from the suction device.
- a suction tube can be temporarily set on the holding element, which can serve as an additional support for the suction device when it is placed on the above-described feet of the collecting container.
- the suction device For handling the suction device, it is also advantageous if it comprises a handle and if the handle on the suction device is arranged or formed on a device side facing away from the collection container.
- the handle can be arranged facing away from the top of the housing of the technical unit. This allows an operator to grasp the suction device with one hand and to carry it safely.
- the handle is connected on the one hand to the carrying device and on the other hand to the technical unit or part of the protective housing.
- a corresponding definition of the handle can enable an operator to carry the suction device in a balanced manner.
- a center of gravity of the suction device in the operating position preferably lies below the handle when a longitudinal axis of the suction device is aligned parallel to the direction of gravity. This makes it possible in particular to use the suction device Easy to carry with one hand without the tendency to swing when lifting.
- the suction device is formed out in the form of a boiler vacuum.
- a boiler vacuum in this sense is a suction device whose collecting container is arranged in the direction of gravity below the suction device when the suction device is used as intended. If, for example, the suction device is separated from the collecting container, all of the dirt collected in the collecting container remains in the container, since it is open at the top, that is, pointing against the direction of gravity. So dirt cannot accidentally fall out of the collecting container.
- the backpack battery operated suction device in the form of a kettle vacuum can be achieved in particular by the fact that the technical unit in the operating position is arranged against the direction of gravity above the collecting container when used as intended.
- FIG. 1 a schematic perspective overall view of an exemplary embodiment of a suction device
- Figure 2 a further schematic perspective overall view of the
- Figure 3 a schematic exploded view of the suction device from
- FIG. 4 an enlarged view of an upper part of the suction device from FIG.
- FIG. 5 a partially sectioned view of the suction device from FIG. 1 from the front;
- FIG. 6 an enlarged view of area A from FIG. 5 with an inserted permanent filter
- FIG. 7 a view similar to FIG. 5, but without a permanent filter
- FIG. 8 an enlarged view of area B in FIG. 7
- FIG. 9 a perspective, partially sectioned view of the suction device from FIG. 1 in the upper area
- FIG. 10 an enlarged sectional view of the suction device in the area of a coupling device for coupling the same to a battery in a locking position;
- FIG. 11 a view similar to FIG. 10, but in an unlocked position
- FIG. 12 a partially sectioned side view of the suction device
- FIG. 13 an enlarged view of area C from FIG. 12
- FIG. 14 a plan view of the suction device in FIG. 1 with the protective housing partially removed;
- FIG. 15 a partial perspective view of the suction device from FIG. 1 with the protective housing partially removed;
- FIG. 16 a schematic representation of the basic structure of an exemplary embodiment of a suction device.
- an embodiment of a backpack, battery operated suction device is shown schematically and denoted as a whole with the reference numeral 10. It comprises a collecting container 12, a technical unit 14 and a backpack device 16 for carrying the suction device 10 on the back of an operator.
- a battery 18 is used, which is formed in the Darge presented embodiment in the form of a rechargeable battery 18 from.
- suction device 10 Further optional components of the suction device 10 are a permanent filter 20 and a suspended matter filter 22.
- the suction device 10 comprises a protective housing 24 which partially surrounds the technical unit 14.
- FIG. 1 the embodiment of the suction device 10 is shown in an upright position, in which a longitudinal axis 26 of the same is aligned parallel to the direction of gravity symbolized by the arrow 28.
- the suction device 10 shown in the operating position in FIG. 1 is constructed according to the so-called kettle vacuum principle and thus forms a battery-operated, backpack-type kettle vacuum cleaner 30.
- the technical unit 14 with a suction device arranged therein is arranged in the direction of gravity above the collecting container 12. In this principle, the technical unit 14 closes the collecting container 12 from above. When Abneh men the technical unit 14 from the collecting container 12 or when separating the The collecting container 12 from the technical unit 14 then remains in the collecting container 12 absorbed dirt in this and cannot fall out due to the force of gravity, since the collecting container 12 is closed at the bottom ver.
- the collecting container 12 has an essentially cuboid shape and defines a receiving space 34 for collecting dirt that has been sucked up, also referred to as suction material.
- the collecting container 12 comprises a collecting container upper side 36, a collecting container lower side 38 opposite this and a collecting container wall 40 extending from the collecting container lower side 36 to the collecting container upper side 38.
- the collecting container upper side 36 is open, essentially completely, and defines a collecting container opening 42.
- the circumferential collecting container wall 40 comprises a rear wall section 44, a front wall section 46 opposite this and two oppositely extending side wall sections 48 and 50 which connect the rear wall section 44 and the front wall section 46 to one another.
- a suction connection 52 is arranged on the collecting container 42, specifically on the lateral wall section 48.
- the suction connection 52 is arranged closer to the upper side 36 of the collecting container than to the lower side 38 of the collecting container.
- the suction connection 52 is rotatable about a suction connection longitudinal axis 54, which extends transversely to the longitudinal axis 26.
- a free end of the suction connection 52 is designed in the form of a coupling piece 56 which can be coupled to a corresponding coupling piece 58 at one end of a suction hose 60.
- the suction hose 60 has a further coupling piece 62 which can be coupled to an optional suction pipe 64, namely a free end 66 thereof.
- a suction nozzle 68 is optionally arranged or can be releasably connected to the suction pipe 64.
- the suction nozzle 68 is designed in the form of a floor nozzle 70 in the game perennialsbei shown in the figures.
- the floor nozzle 70 can also be connected directly to the suction hose 60, namely the coupling piece 62, with a coupling piece 72 of the same, depending on the desired purpose of the suction device 10.
- the suction hose 60 can optionally also be used without the floor nozzle 70.
- the coupling piece 62 forms a suction nozzle 74.
- the suction tube 68 can also be used without the suction nozzle 68. In this case, a free end of the suction pipe 64 also forms a suction nozzle 76.
- the collecting container 12 is designed in such a way that the upper side 36 of the collecting container is designed mirror-symmetrically with respect to two mutually perpendicular mirror planes 78 and 80.
- the two mirror planes 78 and 80 intersect in a straight line which defines the longitudinal axis 26 of both the suction device 10 and the collecting container 12.
- the collecting container 12 is overall mirror-symmetrical or substantially mirror-symmetrical with respect to the two mirror planes 78 and 80 from formed. However, a deviation from the mirror symmetry results from the one-sided arrangement of the suction connection 52.
- the collecting container 12 is designed in one piece, namely monolithically, with the exception of the suction connection 52.
- Feet 82 are arranged or formed on the collecting container 12, namely essentially in the four corners of the collecting container underside 38, and which extend away from the collecting container underside 38.
- the feet 82 are molded onto the collecting container 12.
- the feet 82 are formed as separate components and attached to the collecting container, namely non-positively and / or positively.
- the collecting container 12 is formed out of a foamed plastic material.
- the protective housing 24 is also formed from a foamed Kunststoffma material.
- both the protective housing 24 and the collecting container 12 are formed from the same foamed plastic material.
- expanded polypropylene (EPP) is used as the plastic material.
- a circumferential first clamping surface 84 is formed on the collecting container 12 and extends up to the upper side 36 of the collecting container.
- the first clamping surface 84 is inclined relative to the longitudinal axis 26 by a clamping angle 86. In the exemplary embodiment shown in the figures, it is approximately 20 °; in alternative exemplary embodiments, it is in a range from approximately 5 ° to approximately 25 °.
- the first clamping surface 84 has a cross section that increases in the direction of the technical unit 14. In other words, the receiving space 34 widens conically towards the upper side 36 of the collecting container.
- the technical unit 14 comprises a housing 88 which, in the exemplary embodiment shown, is constructed in several parts. It comprises a lower housing part 90, which is connected to a base plate 92, and an upper housing part 94, which is connected to the lower housing part 90 in the operating position of the suction device 10. On a housing top 96 of the housing 88 a coupling device 98 is arranged, which is designed for mechanically coupling the battery 18 to the technical unit 14, in particular its housing 88.
- the housing 88 is formed from a plastic material by injection molding.
- the plastic material is a thermosetting plastic.
- a compact injection molding process is used in the described embodiment.
- the plastic material is a thermoplastic.
- the plastic material is wholly or partially a glass fiber reinforced plastic.
- the housing 88 also has a housing underside 100 which is formed by the housing lower part 90.
- the top side 96 of the housing is formed on the top part 94 of the housing and points in an opposite direction with respect to the bottom side 100 of the housing.
- the battery 18 is connected to the housing top 96, namely to the coupling device 98 arranged thereon.
- the housing underside 100 is in the operating position with the collecting container 12 clamped.
- the housing 88 closes the collecting container 12, namely its collecting container upper side 36, with the housing underside 100.
- An air duct inlet 102 is formed on the housing underside 100. It is divided into several smaller openings that are separated from each other by webs.
- the base plate 92 has an opening 104 corresponding to the air duct inlet 102.
- the opening 104 is arranged directly below a blower chamber 106, which is formed in the housing 88.
- the blower chamber 106 is thus open at the bottom as seen in the direction of gravity.
- the suction device 32 of the suction device 10 is arranged in the blower chamber 106 at. It comprises a fan 108 with a rotor 110 which is driven by an electric motor 112 in the form of an EC motor.
- a longitudinal axis 114 of the suction device 32 is coaxially aligned with the opening 104.
- the blower chamber 106 has a lateral outlet opening 116, through which air sucked in through the air duct inlet 102 with the blower 108 can flow laterally into a distribution space 118.
- the distribution space 118 has an upper outlet 120 and a lower outlet 122.
- the cross section of the upper outlet 120 is approximately as large as the lower outlet 122. In addition, these are arranged next to one another.
- the upper outlet 120 opens into a right outlet chamber 124, the lower outlet 122 into a left outlet chamber 126.
- the two outlet chambers 124 and 126 are partially delimited by a front side 128 of the protective housing 24.
- a blow-out opening 130 is also arranged or formed, which connects the outlet chambers 124 and 126 with an environment 132 of the suction device 10 in a fluid-effective manner.
- the outlet opening 116 of the blower chamber 106 defines a pressure side 134 of the suction device 32.
- the pressure side 134 is fluidically connected to the blowout opening 130.
- the exhaust opening 130 comprises a right outlet area 136 and a left outlet area 138.
- the two outlet areas 136 and 138 each include two exhaust slots 140 and 142, respectively.
- the exhaust slots 140 and 142 are formed on the housing 88, namely on the lower housing part 90.
- the blow-out opening 130 is arranged on a front side 144 of the suction device 10, specifically directly below the front side 128 of the protective housing 24.
- the blow-out opening 130 is arranged or formed on the technical unit 14, namely on a front side thereof. In relation to the direction of gravity, the blow-out opening 130 is delimited above by the front side 128 of the protective housing 24 and below by the front wall section 46 of the collecting container 12.
- the technical unit 14 further comprises an air guiding device 146 which comprises two separate air ducts 148 and 150 which are each connected to the pressure side 134 of the suction device 32 in a fluidically effective manner.
- the air ducts 148 and 150 are each fluidly connected to one of the two outlet areas 136 and 138.
- the right outlet chamber 124 forms the air duct 148
- the left outlet chamber 126 forms the air duct 150.
- a control chamber 152 which is arranged next to the fan chamber 106 in the direction of gravity, is also formed on the housing 88.
- a control device 154 is arranged in the control chamber 152, which is connected to the suction device 32 in a control-effective manner.
- control device 154 comprises a receiving unit, not shown in the figures, with which control signals can be received, for example from a control unit formed separately from the suction device 10 for activating and deactivating the suction device 32.
- different operating modes can also be specified, which can be activated via the external control unit.
- Communication between the control device 154 and a separate control unit, which can be formed, for example, in the form of a belt controller that can be attached to a belt of an operator of the suction device or a shoulder strap of the backpack device 16, can in particular be via radio, for example via Bluetooth, or via a connection cable can be made.
- all current-carrying or current-carrying components on the technical unit 14 are arranged or formed in the manner described.
- the opening 104 defines a negative pressure side 156 of the suction device 32.
- the air duct inlet 102 is fluidly connected to the negative pressure side 156 of the suction device.
- the protective housing 24 is embodied in one piece, namely monolithically. In other exemplary embodiments, the protective housing 24 can also be constructed in several parts.
- the protective housing 24 and the technical unit 14 are designed so that they can be connected to one another without tools.
- locking or snap elements of a first locking or snap connection device 158 which interact with one another are formed on the protective housing 24 and on the technical unit 14. These make it possible to connect the protective housing 24 to the technical unit 14 in a manner familiar to the person skilled in the art by simply pushing them together and locking them together.
- the protective housing 24 has an opening 160 on its upper side, which is designed to correspond to the coupling device 98. Furthermore, the protective housing 24 is open at the bottom.
- the protective housing 24 For assembly, i.e. to connect the protective housing 24 to the technical unit 14, the protective housing 24 is guided parallel to the direction of gravity from above over the technical unit 14, until the coupling device 98 partially passes through the opening 160 and the locking or snap elements of the first Latch or snap connection device 158 mature into one another.
- the housing underside 102 of the housing 88 is designed mirror-symmetrically with respect to the two mirror planes 78 and 80.
- a circumferential second clamping surface 162 is formed on the housing 88, namely on the lower housing part 90, which in the operating position in which the technical unit 14 and the collecting container 12 are connected to one another, rests against the first clamping surface 84.
- the second clamping surface 162 is inclined relative to the longitudinal axis 26 by the same clamping angle 86 as the first clamping surface 84. This makes it possible, as shown schematically in FIG seal. An additional sealing element for sealing the collecting container 12 relative to the technical unit 14 is not required. In an alternative embodiment, an additional sealing element for sealing the collecting container 12 relative to the technology unit 14 is provided.
- the back carrying device 16 comprises a carrying frame 164 and two shoulder straps 166 arranged or formed thereon, also referred to as carrying straps. These are arranged or formed symmetrically with respect to the mirror plane 78 on the support frame 164, which is also designed mirror-symmetrically to this mirror plane 78.
- the shoulder straps 166 extend from an upper end of the support frame 164 to a lower end thereof and are of a length that an operator can place one of the two shoulder straps 166 on each shoulder.
- a retaining hook 168 is arranged or formed centrally on the support frame 164 and, in the operating position, points against the direction of gravity.
- a holding element 170 for an accessory 172 is arranged or formed on the backpack device 16.
- the holding element 170 comprises two symmetrical to the mirror plane 72 on the support frame 164 in a direction from Protective housing 24 pointing away, resilient clip arms 174 which partially encompass the accessory 172 and hold it in a clamping manner.
- the holding element 170 and a clip arm 174 are shown schematically in dashed lines.
- one or more hooks are provided as holding elements 170 in order to temporarily fasten accessories to the suction device 10.
- the support frame 164 is first connected to the protective housing 24. This is done by screws not shown in the figures. This unit of support frame 164 and protective housing 24 is then pushed over the technical unit 14 in the direction of gravity and clipped or locked. The support frame 164 and the technical unit 14 are then firmly connected to one another. A part of the protective housing 24, namely its rear wall resting on the support frame 164, is arranged in this way between the support frame 164 and the technology unit 14.
- the support frame 164 and the technical unit 14 are firmly connected to one another. Fastening elements in the form of screws are used to connect the support frame 164 and the technical unit 14. In accordance with the intended purpose, this alternative embodiment does not provide for a user to release this connection.
- the protective housing 24 Before connecting the technical unit 14 and the support frame 164, however, the protective housing 24 must first be connected to the technical unit 14. The support frame 164 is then connected to the coupled unit comprising protective housing 24 and technical unit 14. In this exemplary embodiment, too, a part of the protective housing 24, namely its rear wall resting on the support frame 164, is arranged between the support frame 164 and the technical unit 14.
- the suction device 10 also has a handle 176.
- the handle 176 is arranged or formed on the suction device 10 on a device side facing away from the collecting container 12. In the embodiment shown in the figures, it points in the operating position against the direction of gravity.
- the convexly curved handle 176 pointing away from the suction device 10 extends above the battery 18 when it is coupled to the technical unit 14. It is attached on the one hand to the backpack device 16 and on the other hand to the protective housing 24 and thus indirectly to the technical unit 14.
- the described arrangement of the handle 176 has the consequence that a center of gravity of the suction device 10 lies below the handle 176 in the operating position, that is to say when the longitudinal axis 26 is aligned parallel to the direction of gravity.
- FIG. 1 it is shown schematically that the technical unit 14 and the battery 18 are mechanically and electrically coupled to one another in a coupling position.
- FIG. 4 shows the battery 18 and the technical unit 14 in a separated position, mechanically and electrically completely separated from one another.
- connection contacts 178 are also in contact with connection contacts, not shown in the figures, of battery 18, in order to establish an electrical connection between battery 18 and control device 154.
- FIGS. 10 and 11 also show in particular how the battery 18 is mechanically secured to the coupling device 98.
- a sliding element 188 is used to unlock the battery 18 and can be displaced parallel to an underside of the battery 18 in the direction of the lever 182 which can be pivoted about a pivot axis 190.
- An actuation surface 192 of the sliding element 188 protruding laterally below the battery 18 is freely accessible to a user, so that the sliding element 188 can be moved in the direction of the pivot axis 190.
- a wedge-shaped end of the sliding element 188, which points in the direction of the pivot axis 190, is beveled and defines a sliding surface 194 for another end 196 of the lever 182.
- the end 196 and the end of the lever 182 carrying the projection 184 point in substantially opposite directions. If the sliding element 188 is advanced in the direction of the pivot axis 190, the end 196 slides on the sliding surface 194, whereby the lever 182 is pivoted against the action of the spring 118. The projection 184 is moved out of the recess 186 so that, as shown in FIG. 11, the battery 18 can be pulled off the coupling device 98 parallel to its underside in the direction of the actuating surface 192.
- a suction bag 200 can be used when the suction device 10 is in operation.
- the suction bag 200 carries a frame plate 102 which has an opening 204.
- the opening 204 corresponds to a section 206 of the suction connection 52 protruding into the receiving space 34.
- an interior space 208 of the suction bag 200 and the surroundings 132 of the suction device 10 are fluidly connected to one another via the suction connection 52 and the opening 204 in the operating position.
- the suction bag 200 is formed from an air-permeable material, for example a porous paper material.
- the technical unit 14 and the collecting container 12 can be connected to one another in a direct clamping manner, in that the first clamping surface 84 and the second clamping surface 162 are placed against one another.
- the permanent filter 20 can also optionally be used.
- This comprises a holding frame 210 on which a filter element 212 is held.
- the filter element 212 extends in the operating position transversely to the direction of gravity.
- the filter element 212 is formed from a nonwoven material.
- the holding frame 210 has a circumferential clamping wall portion 214, with two facing away from each other clamping surfaces 216 and 218.
- the clamping wall portion 214 expands in the operating position in a direction opposite to the direction of gravity in cross section continuously. He is also ge compared to the longitudinal axis 26 also inclined by the clamping angle 86.
- a circumferential flange 220 projects away from the longitudinal axis 26.
- double S-shaped frame portion 222 which one upwardly pointing, open circumferential groove 224 and a circumferential groove 226, which is open pointing in the direction of the collecting container 12, are defined.
- the filter element 212 is held at the free end of the frame section 222.
- the special shape of the holding frame 210 described enables the permanent filter 20 to be used to close the collecting container opening 42.
- the flange 220 then rests on the top of the collecting container 36 and the clamping surface 216 of the clamping wall section 214 rests on the first clamping surface 84 on the collecting container 12.
- the clamping surface 218 rests on the second clamping surface 162 when the technical unit 14 is attached.
- the technical unit 14 engages in the groove 224 with a circumferential projection 228 on which the second clamping surface 162 is formed.
- the groove 226 is positioned in such a way that the frame plate 202 of the suction bag 200 can engage in it, as a result of which the suction bag 200 is held on the suction connection 52 in a defined manner as described.
- the clamping wall section 214 is held in a clamping manner between the clamping surfaces 84 and 162.
- the optional particulate filter 22 can be coupled to the technology unit 14 in the operating position. It is then arranged in such a way that it completely closes the air duct inlet 102. It can therefore only flow through the air duct inlet 102 air that has flowed through the particulate filter 22.
- the HEPA filter 22 comprises a HEPA filter frame 230 and a HEPA filter element 232 held thereon.
- the HEPA filter element 232 is designed in the form of a HEPA filter element.
- FIG. 8 shows schematically how the suspended matter filter 22 is connected to the housing 88 in a latching manner.
- Figure 6 it is shown schematically when both the particulate filter 22 is connected to the technical unit 14 and the permanent filter 20 is set.
- the particulate filter 22 is arranged between the permanent filter 20 and the air duct inlet 102. Air sucked from the collecting container 12 with the suction device 32 then first flows through the permanent filter 20, then the particulate filter 22 and then passes through the air duct inlet 102 and the opening 104 into the blower chamber 106.
- the permanent filter 20 and the particulate filter 22 can also be used in combination can be inserted and used with the suction bag 200.
- a safety device 238 is provided on the suction device 10. It is used to secure a connection between the collecting container 12 and the technical unit 14 in the operating position.
- the securing device 238 comprises a securing member 240 which holds the collecting container 12 in the operating position on the technical unit 14. It is in the form of a ban of 242, a first end 244 of which is attached to a lower end 246 of the support frame 164.
- the band 242 partially encompasses the collecting container 12, specifically the collecting container underside 38, and runs along the front wall section 46 of the collecting container 12.
- a second end 248 of the band 242 is designed in the form of a loop and on a retaining pin 250 oriented transversely to the direction of gravity on a nem clamping lever 252 held.
- the tensioning lever 252 is pivotably mounted at one end on a bearing pin 254.
- the bearing pin 254 extends parallel to the retaining pin 250 and is held at the lower end 256 of a retaining hook 258.
- An upper end 260 of the retaining hook 258 is bent over in the direction of the longitudinal axis 26 and back in the direction of the collecting container 12 and defines a retaining groove 262.
- the safety device 238 In the operating position, the safety device 238 is locked, as is shown schematically in FIG. Between the outlet areas 136 and 138, a recess is formed on the technical unit 14, in which a projection 264 pointing away from the collecting container 12 is formed. This engages in the retaining groove 262 of the retaining hook 258.
- the tensioning lever 252 is pivoted with its free end in the direction of the front of thetechnikein unit 14. In this position, the retaining pin 250 is arranged above the La ger turns 254 and the tape 242 is stretched around the collecting container 12 below.
- the clamping lever 252 With its free end must be pivoted away from the technical unit about a pivot axis extending transversely from the bearing pin 254 to the longitudinal axis 26.
- the holding pin 250 also moves about the pivot axis, namely first away from the collecting container 12 and then back towards it.
- the band 242 is relaxed and the retaining hook 258 can be released from the technical unit 14 by moving it upwards so that the projection 264 releases the retaining groove 262.
- the band 242 guided in a groove 266 formed on the outside of the collecting container 12 can now be removed and the collecting container 12 can be removed downwards.
- the described structure of the suction device 10 as a boiler sucker 30 ensures that dirt in the collecting container 12, regardless of whether a suction bag 200 is used or not, cannot fail.
- the suction device 10 is equipped with a tool-free coupling mechanism 268 for releasably connecting the securing member 240 to the technical unit 14.
- the other end of the securing member 240 can optionally also be coupled without tools in a similar manner to the backpack device 16.
- the suction device 10 described has a schematic structure as shown in FIG. In the operating position, the technical unit 14 is arranged between the battery 18 and the collecting container 12.
- the suction device 10 described also referred to as a back vacuum cleaner, can be designed very easily and compactly in the manner described with excellent performance data, in particular a high negative pressure with a large liter capacity, a long operating time and very good ergonomics can be achieved.
- the partially symmetrical design of the collecting container 12 enables it to be optionally connected to the technical unit 14 with the suction connection 52 on the left or right, so that the suction device 10 can be used either for left or right hand operation.
- collecting containers 12 of different sizes can be used, so that collecting containers 12 of different sizes can be used for different purposes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Suction Cleaners (AREA)
- Cleaning In General (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2020/063779 WO2021233515A1 (de) | 2020-05-18 | 2020-05-18 | Rückentragbares batteriebetriebenes sauggerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4153018A1 true EP4153018A1 (de) | 2023-03-29 |
| EP4153018B1 EP4153018B1 (de) | 2026-03-11 |
Family
ID=70779728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20727219.6A Active EP4153018B1 (de) | 2020-05-18 | 2020-05-18 | Rückentragbares batteriebetriebenes sauggerät |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20230084518A1 (de) |
| EP (1) | EP4153018B1 (de) |
| CN (1) | CN115802923A (de) |
| WO (1) | WO2021233515A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1029427S1 (en) * | 2020-11-13 | 2024-05-28 | Alfred Kaercher Se & Co. Kg | Vacuum cleaner |
| US12383045B2 (en) * | 2022-12-15 | 2025-08-12 | Stanley Black & Decker Inc. | Portable backpack vacuum having fold-in harness |
| IT202300021600A1 (it) * | 2023-10-17 | 2025-04-17 | Duplex Ind S R L | Aspiratore portatile per la pulizia di pavimenti |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1099560A (en) * | 1914-04-17 | 1914-06-09 | B F Sturtevant Co | Portable vacuum-cleaner. |
| US4791700A (en) * | 1987-12-29 | 1988-12-20 | The Scott Fetzer Company | Fresnel lens illuminator for vacuum cleaner |
| CA2061469C (en) * | 1992-02-19 | 1996-11-19 | Norman V. Soler | Cyclonic back-pack vacuum cleaner |
| US5267371A (en) * | 1992-02-19 | 1993-12-07 | Iona Appliances Inc. | Cyclonic back-pack vacuum cleaner |
| US6647586B2 (en) * | 2001-02-05 | 2003-11-18 | Alma L. Rogers | Portable vacuum cleaning apparatus |
| US7653963B2 (en) * | 2002-11-12 | 2010-02-02 | Black & Decker Inc. | AC/DC hand portable wet/dry vacuum having improved portability and convenience |
| US7287300B2 (en) * | 2004-07-09 | 2007-10-30 | Nss Enterprises, Inc. | Portable vacuum system |
| WO2007109348A2 (en) * | 2006-03-21 | 2007-09-27 | Mcintyre Paul C | Gutter cleaning vacuum system including a novel hinged vacuum manifold assembly |
| JP2010512195A (ja) * | 2006-12-12 | 2010-04-22 | ジービーディー コーポレーション | 切り替え可能な表面清掃装置 |
| CN201595772U (zh) * | 2010-01-08 | 2010-10-06 | 周丽君 | 背包式吸尘器 |
| CN205776021U (zh) * | 2015-05-25 | 2016-12-07 | 南京德朔实业有限公司 | 背负式风机系统及风机装置 |
| JP6869635B2 (ja) * | 2015-07-09 | 2021-05-12 | 株式会社マキタ | 集塵機 |
| US10383493B2 (en) | 2015-07-09 | 2019-08-20 | Makita Corporation | Dust collector |
| DE102016111876A1 (de) * | 2016-06-29 | 2018-01-04 | Metabowerke Gmbh | Tragbare Vorrichtung |
| US10758101B2 (en) * | 2017-06-12 | 2020-09-01 | Emerson Electric Co. | Upright vacuum cleaner with battery support plate |
| US20200397200A1 (en) * | 2018-03-02 | 2020-12-24 | Techtronic Floor Care Technology Limited | Vacuum cleaner |
-
2020
- 2020-05-18 CN CN202080102269.4A patent/CN115802923A/zh active Pending
- 2020-05-18 EP EP20727219.6A patent/EP4153018B1/de active Active
- 2020-05-18 WO PCT/EP2020/063779 patent/WO2021233515A1/de not_active Ceased
-
2022
- 2022-11-17 US US17/989,338 patent/US20230084518A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20230084518A1 (en) | 2023-03-16 |
| EP4153018B1 (de) | 2026-03-11 |
| CN115802923A (zh) | 2023-03-14 |
| WO2021233515A1 (de) | 2021-11-25 |
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