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
  • A47L9/10—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
• • 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

Definitions

• the invention relates to a waste recovery tank for a vacuum cleaner called "bagless”, comprising a first separation of waste by a cyclonic or inertial type device, or by a large mesh grid, as well as a second consecutive separation at the first, by a fine filter.
• the polluted air enters tangentially into a separation chamber provided with a grid or a primary separation making it possible to eliminate the coarse particles before passing to a secondary separation making it possible to remove the fine particles residual.
• a separation chamber provided with a grid or a primary separation making it possible to eliminate the coarse particles before passing to a secondary separation making it possible to remove the fine particles residual.
• the inertia separation vacuum cleaner usable in the context of the invention has an air inlet duct opening in a tangential direction into a primary waste separation chamber, said chamber being of generally cylindrical shape.
• the central part of this primary separation chamber ends in a conduit in connection with the suction device, which conduit has a secondary filtration assembly in order to remove the finer particles.
• An evacuation channel allows the recovery of centrifuged waste during the primary separation in a sealed collecting tank.
• This waste evacuation channel is located at the same level as the air inlet and is placed in a substantially diametrically opposite position relative to the axis of the cylindrical separation chamber.
• the air flow in the separation chamber due to its tangential arrival, and due to its evacuation in the central part of the separation chamber, describes a vortex path favorable for the separation of waste.
• the primary filtration device positioned in the separation chamber main in the upper part of the filtration assembly, is constituted by a cylindrical portion pierced with grid-shaped holes, said holes allow the flow of air flow towards the secondary filtration chamber.
• the main separation chamber in particular its geometry, as well as the grid for the separation of large waste are configured for the most efficient centrifugal separation possible, in fact the majority of the waste collected by the squeegee assembly is discharged directly into the waste recovery bin.
• the fine part of the waste in particular dust of low particle size, passes through the primary filtration grid. Secondary filtration is therefore necessary before evacuating the air through the suction unit.
• This secondary filtration is traditionally constituted by a pleated paper filter of cylindrical shape arranged coaxially with the main separation chamber.
• a vacuum cleaner comprising a first filtration by a cyclone, the air then being conveyed to the engine through a filter.
• This filter is preferably a fine metal filter that can be cleaned using a small brush supplied with the device.
• Such devices manual or automatic, therefore make it possible to dislodge a part of the dust embedded in the filter, said dust joining as best as possible the other collected waste.
• one of the advantages of a bagless separation device is to be able to easily access the collected waste, in particular when precious objects have been vacuumed, in order to recover it.
• the presence of fine dust from the unclogging of the secondary filter harms the search for these objects, both visually and by the risks of suspending this dust. when mixing waste.
• the invention therefore aims to solve these main difficulties by proposing a single but compartmentalized waste recovery tank of suitable shape in order to guarantee a high compactness of the vacuum cleaner.
• the present invention relates to a waste recovery tank for a vacuum cleaner comprising a primary separation removing the heaviest and bulkiest waste by a bagless device of the cyclonic type, or by inertia, or by a large mesh grid, said vacuum cleaner comprising also a secondary separation for fine debris and dust by an appropriate filter, said filter comprising an unclogging device in order to extract from the filter part of the retained waste, characterized in that said waste recovery tank comprises two separate compartments, a main compartment for the recovery of waste from the primary separation, and a secondary compartment for the recovery of waste from the actuation of the unclogging device.
• the user can empty the waste from the two separations in a single operation.
• the vacuum cleaner can be configured very compactly with a reduced volume compartment for the finest waste from unclogging and a larger capacity compartment for large waste, stopped by primary filtration.
• the two compartments can be configured as best as possible on the vacuum cleaner frame.
• Figure 1 is a front perspective view of a vacuum cleaner comprising the present invention.
• Figure 2 is an exploded view of the filtration assembly.
• Figure 3 is a rear perspective view of a vacuum cleaner comprising a waste container according to the invention.
• FIG. 4 illustrates the waste recovery tank according to the invention.
• Figures 5 to 8 show an alternative embodiment of the invention. More specifically Figure 1 illustrates a cyclonic type vacuum cleaner comprising the invention, such an apparatus is conventionally constituted by a frame 1 supported by wheels 2 and a front caster 3 allowing the displacement and orientation of the vacuum cleaner during its operation.
• the cyclonic vacuum cleaner comprises a filtration assembly 9 formed by the main separation chamber 6 and a cylindrical chamber for the secondary filter situated in an immediately lower part, the two chambers being in aeraulic relationship with one another.
• the engine block 4 is placed on the front of the device, the incoming air stream loaded with waste arrives in the intake mouth 5 and enters tangentially into a main separation chamber 6.
• FIG. 2 presents an exploded view of the filtration devices which include in particular:
• a body 15 defining the secondary filtration chamber and housing a pleated filter 13, said pleated tubular filter 13 being positioned vertically in the lower and central part of the body 15, which lower part forming the secondary separation chamber,
• the main separation chamber 6 positioned in the upper part of the body 15 comprising the opening 20 in the direction of the conduit 8 for connection to the container 37 for recovering waste,
• a return elbow 16 directing the air coming from the pleated filter 13 towards a pipe 11 then towards the suction motor, and located under the main separation chamber, this return elbow being formed by a dome 162 in connection with the central part of the tubular filter, this dome
• the air loaded with waste arrives via the intake mouth 5 tangentially in the primary separation chamber 6, the flow of high speed air rotates around the ring formed between the primary filter 17 and the walls of the chamber 6 and discharges, through the opening 20, coarse waste which is expelled to the tank 37 recovery.
• the air flow then enters through the holes of the primary filter 17, then through the opening 164, in the secondary filtration chamber, between the body 15 and the pleated filter.
• the air then passes through this filter and discharges the dust and residual fine particles in its passage and rises in the central and upper tubular part of said pleated filter 13.
• the vacuum cleaner comprises a geared motor 10 placed on the frame 1 actuating the device 14 for unclogging the filter 13 constituting the secondary separation.
• the unclogging device comprises mechanical biasing elements 23 positioned on the axis of the filtration assembly, which filtration assembly is of generally cylindrical shape.
• the gear motor 10 rotates the mechanical biasing elements 23 via a transmission 19.
• the unclogging device according to the invention is placed in the lower part of the filtration assembly so as not to disturb the circulation of air in the filtration assembly and not to impede the separation of the particles under the effect of centrifugal force.
• the transmission 19, advantageously located under the filter 13, has the function of transmitting a rotation between the drive shaft of the geared motor 10 and an axis 22 supporting the mechanical biasing elements 23.
• Said drive shaft is offset by relative to the central axis of the generally cylindrical filtration assembly 9.
• the transmission 19 can for example comprise gears 24 connected by a belt 21, or comprise any other device making it possible to transmit a rotational movement between one point and another.
• the mechanical biasing elements 23 may for example be in the form of fingers, which fingers scrape the folds of the filter 13 so as to cause the dust to fall when they are rotated. These fingers can be positioned in the middle part, substantially halfway up the pleated tubular filter, or at other levels, depending on their shape and the configuration of the filter.
• the action of the unclogging device is not permanent during the operation of the vacuum cleaner. Indeed, a continuous operation of the unclogging device is not necessary because of the low fouling speed of the filter on the one hand, and because of the wear caused by friction on the material, on the other hand .
• the unclogging device operates intermittently.
• the gear motor starts up, preferably according to the invention, each time the vacuum cleaner is stopped.
• the vacuum cleaner removes the largest and heaviest waste during primary separation.
• the finest debris, essentially consisting of fine dust, is stopped by the pleated filter 13.
• the pleated filter releases a part of the fine dust which also falls into the waste recovery tank 37.
• said waste recovery tank 37 shown in FIG. 4, is arranged in two parts and comprises:
• a secondary compartment 32 accommodating fine debris and dust coming from the secondary separation and the fine filter, after the unclogging operation
• the main and secondary compartments are advantageously chosen to have an overall parallelepiped or cylindrical shape and are preferably shaped to fit as well as possible with the various components of the vacuum cleaner carried by the frame 1. More precisely, the main compartment 31 is of larger capacity that the secondary compartment 32, and located on the rear and in the lower part of the vacuum cleaner, in the extension of the duct 8 and substantially positioned opposite the flow of polluted air intake, which flow arriving by the inlet 5. The secondary compartment 32 is positioned below and substantially vertical to the secondary separation chamber, under the filtration assembly 9.
• the height of the secondary compartment is limited so as to avoid deterioration of the compactness of the cyclonic vacuum cleaner and excessive height of the device.
• the upper parts of the two compartments have cutouts allowing easy engagement of the recovery tank in a reception housing 35 in the vacuum cleaner. Said cuts are made according to planes inclined towards the front of the vacuum cleaner.
• the waste recovery tank 37 comprises at least one gripping device allowing the manipulation of said tank for maintenance operations.
• This gripping device is preferably a handle 34 oriented vertically housed on the rear of the container, approximately halfway up and in the center of the outside of the main compartment 31, as illustrated in FIG. 4.
• gripping means different shapes, the latter being able to be made of the same material as that of the compartment to which it is attached or in a different material.
• Said gripping means can be manufactured during the production of said compartment or be added in a later step.
• said gripping means can, for example, be considered hollow handles on some of the walls of the main compartment 31 and different forms of handles, without departing from the scope of the invention.
• the handle and the shape of the container facilitate the evacuation of the waste contained in the compartments by the user, who can carry out this maintenance operation without getting dirty.
• this connection can be designed according to a beam positionable at different heights between the two compartments.
• beams or connections can be used, the thickness and structure of these elements can be very variable depending on the mechanical constraints and the desired design for the recovery tank as a whole.
• connection between the two compartments can, for example, be imagined to join the two compartments on one side without a connecting beam and fabricate compartments of shapes and volumes various useful.
• the recovery tank 37 once positioned in the vacuum cleaner, must not allow the entry of air which would reduce the suction power of the device, also a sealing device is provided between the upper parts of the two compartments 31, 32 and the fixed opposite parts arranged on the frame 1 of the vacuum cleaner.
• the compartments can be sealed in various ways, for example by means of a plastic or rubber profile acting as a seal placed in the housing 35.
• the seal can be positioned on the upper perimeter 36 of each compartment opening 31 and 32, and therefore carried by the recovery container itself. It is also possible to imagine other sealing means without departing from the scope of the invention.
• Figures 5 to 8 show an alternative embodiment of the vacuum cleaner equipped with the present invention.
• the separation device has a substantially horizontal waste inlet pipe 405, said pipe penetrating into the main separation chamber 408 closed by a cover 406.
• the secondary filter is also placed under the separation chamber, however, this filter is arranged horizontally.
• the unclogging of such a filter is advantageously carried out by rotation of the filter relative to the fixed scraper blade.
• the air outlet from the separation device is ensured by a circular arc duct 407 leading the purified air towards the motor 409.
• the waste container 410 is vertical, presenting a vertical grip handle 412 as well as a double waste container composed of a compartment 414 for the waste separated by the main separation device and a compartment 416 for the waste from the unclogging .
• the waste is conveyed to the compartments 414, 416 respectively by conduits 415, 417 integrated into the container 410.
• the upper part of the container is closed, the container being emptied by its lower part.
• the compartments 414, 416 are removably mounted by a hinge 418, a latch 419 making it possible to maintain the compartments in leaktight connection with the conduits 415, 417 of the tank, by means of seals, respectively 444 and 447, visible in figure 8.
• Figure 6 shows, isolated, the waste bin and its support on the vacuum cleaner.
• the waste bin thus comprises an opening 420 for entering the waste from the primary separation in the chamber 408, as well as an opening 426 for entering the waste from the unclogging of the secondary filter. This opening is advantageously provided with a seal 428.
• the container 410 has lugs 422, 424 located on a vertical face 425 for coupling the container to its support, the lugs 422 being located at the opening 420, while the lugs 424 are located slightly lower .
• the tank support is in the form of a frame 430 linked to the frame of the vacuum cleaner or to the separation chamber.
• This H-shaped frame also shown in front view in FIG. 7, thus comprises four vertical arms, each of the arms having an opening.
• the upper arms have an opening 434 delimited in the lower part by a part 435 mounted on two vertical springs 436.
• the lower arms also have an opening 432 delimited in the lower part by a fixed part 433.
• the coupling of the tray 410 to the support 430 consists of the introduction of the lugs 422, 424 respectively into the openings 434, 432 of the support 430.
• the weight of the tray allows the lugs to be hooked on the parts 435, 433, the parts 435 being slightly displaced downwards, against the return force of the springs 436, under the weight of the tank.
• the user To empty the container of its content, the user unlocks the compartments 414, 416 by the latch 419. He can then rotate these compartments by the hinge 418 in order to open the container and view their contents to possibly recover an object. A more accentuated pivoting above a trash can empty the compartments of accumulated waste.
• Various materials can be used to make the waste recovery container consisting of two compartments and at least one gripping means, this part is preferably shaped in an impact-resistant plastic, in a single, molded part, in order to reduce its cost.
• the invention is not limited to the embodiments described and shown by way of examples, but it also includes all the technical equivalents and their combinations.
• the present invention is not limited to the unclogging device presented, any other known device, such as in particular those described in the preamble to the present application, can be used and adapted without departing from the scope of the present invention.
• the filter can be flat or tubular, made up of various materials and the circulation of air in the filter assembly designed in different ways, without departing from the scope of the invention.
• an improvement in the waste collection device could be obtained by connecting the compartments by a mechanism actuated to the handle by a trigger or a button allowing, as desired, either to leave only the largest compartment for rapid emptying. main waste, i.e. the two compartments for complete cleaning of the device.

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

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

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• 2005
  • 2005-12-09 FR FR0512510A patent/FR2894448B1/fr not_active Expired - Fee Related
• 2006
  • 2006-12-04 EP EP06841850.8A patent/EP1956959B1/de active Active
  • 2006-12-04 CN CNA200680043103XA patent/CN101309625A/zh active Pending
  • 2006-12-04 WO PCT/FR2006/002641 patent/WO2007065991A1/fr active Application Filing
  • 2006-12-04 RU RU2008127871/12A patent/RU2008127871A/ru not_active Application Discontinuation
  • 2006-12-04 ES ES06841850.8T patent/ES2608400T3/es active Active

Non-Patent Citations (1)

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