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EP2255708B1 - Dispositif d'aspiration - Google Patents

Dispositif d'aspiration Download PDF

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Publication number
EP2255708B1
EP2255708B1 EP20090161474 EP09161474A EP2255708B1 EP 2255708 B1 EP2255708 B1 EP 2255708B1 EP 20090161474 EP20090161474 EP 20090161474 EP 09161474 A EP09161474 A EP 09161474A EP 2255708 B1 EP2255708 B1 EP 2255708B1
Authority
EP
European Patent Office
Prior art keywords
sucking
chamber
opening
configuration
valve
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.)
Active
Application number
EP20090161474
Other languages
German (de)
English (en)
Other versions
EP2255708A1 (fr
Inventor
Mauro Avanzini
Giuliano Bertoletti
Domenico Ronchi
Pierluigi Raineri
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.)
Soteco SpA
Original Assignee
Soteco SpA
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 Soteco SpA filed Critical Soteco SpA
Priority to EP20090161474 priority Critical patent/EP2255708B1/fr
Publication of EP2255708A1 publication Critical patent/EP2255708A1/fr
Application granted granted Critical
Publication of EP2255708B1 publication Critical patent/EP2255708B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/22—Mountings for motor fan assemblies

Definitions

  • the invention relates to a sucking device, in particular a domestic or industrial vacuum cleaner that sucks a dry or liquid product from surfaces such as floors, furniture, furnishing elements or the like.
  • Vacuum cleaners comprising a plurality of sucking elements, such as, for example, fans, each driven by a respective motor.
  • Each sucking element comprises a sucking opening through which air is sucked to generate a vacuum in relation to the outside environment.
  • the sucking openings of all the sucking elements are connected to a same sucking pipe of the vacuum cleaner.
  • the vacuum cleaner is able to suck an air flow rate that is substantially the same, less the head losses, as the sum of the air flow rates of the single sucking elements.
  • US 6,381,803 B1 discloses a sucking device according to the preamble of claim 1.
  • FR 2733406 discloses a further sucking device.
  • a drawback of the vacuum cleaners disclosed above is that although they are able to suck significant air flow rates they are unable to generate great vacuums.
  • Vacuum cleaners are further known comprising a multistage aspirating element, such as, for example, a fan, driven by a respective motor.
  • a drawback of the vacuum cleaners disclosed above is that, although they generate a high vacuum they are not able to suck great air flow rates, unless driving motors are installed of the multistage sucking element that are very powerful and therefore very costly.
  • An object of the invention is to improve known sucking devices.
  • Another object of the invention is to provide a sucking device in which the sucked air flow rate and the vacuum can be varied simply.
  • a sucking device comprising first sucking means having a first sucking opening and second sucking means having a second sucking opening, characterised by further comprising switching means that enables said sucking device to assume alternatively a first operating configuration, in which said first sucking opening and said second sucking opening are both connected to a sucking element of said sucking device arranged for interacting with a product to be sucked and a second operating configuration, in which said first sucking opening is connected to said sucking element and said second sucking opening is connected to a discharging opening of said first sucking means.
  • the sucking device can operate according to two distinct operating modes.
  • the sucking device In a first operating mode, the first sucking means and the second sucking means are connected in parallel. In this case, the sucking device enables a large air flow rate to be sucked.
  • the sucking device In a second operating mode, the first sucking means and the second sucking means are connected in series.
  • the sucking device enables a great vacuum to be generated.
  • the sucking device can pass with extreme simplicity from a work configuration - corresponding to the aforesaid first operating mode - characterised by a preset air flow rate and by a preset vacuum - to a further work configuration - corresponding to the aforesaid second operating mode - characterised by a lesser air flow rate and by a greater vacuum, or vice versa.
  • FIGS 1 and 2 schematically show a sucking device 1, for example a domestic or industrial vacuum cleaner, arranged for sucking a dry and/or wet waste material.
  • a sucking device for example a domestic or industrial vacuum cleaner, arranged for sucking a dry and/or wet waste material.
  • the sucking device 1 comprises first sucking means 5, for example a fan driven by a corresponding motor, provided with a first sucking opening 6 and with a first discharging opening 22, and second sucking means 20, for example a further fan driven by a corresponding motor, provided with a second sucking opening 19 and with a second discharging opening 23.
  • first sucking means 5 for example a fan driven by a corresponding motor
  • second sucking means 20 for example a further fan driven by a corresponding motor, provided with a second sucking opening 19 and with a second discharging opening 23.
  • the motors that drive the aforesaid fan and the aforesaid further fan can be single-phase or three-phase electric motors.
  • the first sucking means 5 can comprise two or more fans.
  • the second sucking means 20 can comprise two or more fans.
  • the sucking device 1 further comprises collecting means 2, configured, for example, as a casing, such as a barrel of a vacuum cleaner intended for receiving the aforesaid waste material removed by the sucking device 1.
  • the collecting means 2 is provided with a hole, which is not shown, to which a sucking element is connected with which the sucking device 1 is provided.
  • the sucking element is intended to interact with the aforesaid waste material.
  • the sucking element may comprise a flexible pipe having a first end connected to the aforesaid hole and a second end connected to a cleaning tool, such as a brush, or the like.
  • a filtering element can be provided that separates the aforesaid waste material from the current of air generated by the first sucking means 5 and by the second sucking means 20.
  • the first sucking opening 6 faces the collecting means 2 directly and is thus connected thereto.
  • the first discharging opening 22 leads into a first chamber 12 having an outlet passage 15 that communicates with a discharging conduit 13.
  • the discharging conduit 13 is intended for evacuating into the external environment the air sucked by the sucking device 1.
  • first valve means 14 - for example an automatic valve - that enables the air to pass from the first chamber 12 to the discharging conduit 13 and prevents air from passing from the discharging conduit 13 to the first chamber 12.
  • the sucking device 1 further comprises a second chamber 11 provided with an inlet passage 8 connected to the collecting means 2.
  • second valve means 9 - for example an automatic valve - that enables the air to pass from the collecting means 2 to the second chamber 11 and prevents air from passing from the second chamber 11 to the collecting means 2.
  • the second sucking opening 19 faces and is thus connected to the second chamber 11.
  • the second discharging opening 23 leads into the discharging conduit 13.
  • the switching means 18 comprises a valve 24 - which is drivable by a user - positioned in passage means 25 extending between the first chamber 11 and the second chamber 12.
  • the valve 24 is movable between an open position Y, in which the valve 24 does not obstruct the passage means 25, enabling air to pass from the first chamber 12 to the second chamber 11, and a closed position X, in which the valve 24 obstructs the passage means 25, preventing air from passing from the first chamber 12 to the second chamber 11.
  • the switching means 18 allows to pass from an operating configuration A (shown in Figure 1 ), in which the sucking device 1 sucks a large air flow rate and generates a small vacuum, to a further operating configuration B (shown in Figure 2 ), in which the sucking device 1 sucks a small air flow rate and generates a great vacuum.
  • the first sucking means 5 and the second sucking means 20 are connected parallel.
  • both the first sucking opening 6 and the second sucking opening 19, the second sucking opening 19 through the inlet passage 8 are connected to the collecting means 2.
  • both the first discharging opening 22, through the outlet passage 15 are connected to the discharging conduit 13.
  • the first sucking means 5 and the second sucking means 20 are connected in series.
  • the second sucking opening 19 is connected to the first discharging opening 22, through the first chamber 12 and the second chamber 11.
  • the flow F is separated into two flows, i.e. into a first flow F1 sucked by the first sucking means 5 and into a second flow F2 sucked by the second sucking means 20.
  • the first flow F1 is sucked by the first sucking means 5 through the first sucking opening 6 and is introduced inside the first chamber 12 through the first discharging opening 22.
  • the first valve means 14 moves from a closing configuration K1, shown in Figure 2 , to an opening configuration H1, shown in Figure 1 . In this manner, the first flow F1 can pass from the first chamber 12 to the discharging conduit 13 through the outlet passage 15.
  • the second valve means 9 moves from a closing configuration K2, shown in Figure 2 , to an opening configuration H2, shown in Figure 1 .
  • the first flow F2 can pass from the collecting means 2 to the second chamber 11 through the inlet passage 8.
  • the second flow F2 after traversing the second chamber 11, is sucked by the second sucking means 20 through the second sucking opening 19 and is introduced inside the discharging conduit 13 through the second discharging opening 23.
  • the flow F3 is not separated into two flows, as occurs in the operating configuration A, but successively traverses the first sucking means 5 and the second sucking means 20.
  • the flow F3 is sucked by the first sucking means 5 through the first sucking opening 6 and is introduced inside the first chamber 12 through the first discharging opening 22.
  • the flow F3 passes from the first chamber 12 to the second chamber 11 traversing the valve 24.
  • the second valve means 9 is maintained in the closing configuration K2.
  • the flow F3 is sucked by the second sucking means 20 through the second sucking opening 19 and is introduced inside the discharging conduit 13 through the second discharging opening 23.
  • the first valve means 14 is maintained in the closing configuration K1.
  • the flow F3 is induced to traverse in succession the first sucking means 5, the first chamber 12, the second chamber 11 and the second sucking means 20 to reach the discharging conduit 13.
  • a user by acting on the switching means 18, can move very simply and rapidly from the operating configuration A to the further operating configuration B, and vice versa.
  • the sucking device 1 is consequently very versatile inasmuch as the air flow rate sucked and the vacuum generated can be varied according to requirements, for example to adapt to the various quantities and/or type of waste material that has to be sucked.

Landscapes

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

Claims (8)

  1. Dispositif d'aspiration, comprenant de premiers moyens d'aspiration (5) ayant une première ouverture d'aspiration (6) et de seconds moyens d'aspiration (20) ayant une seconde ouverture d'aspiration (19), comprenant en outre des moyens de commutation (18) qui comprennent des moyens de vanne (24) pouvant être pilotés par un utilisateur et interposés entre une première chambre (12) et une seconde chambre (11), dans lequel ladite première chambre (12) est reliée à une ouverture d'évacuation (22) et ladite seconde chambre (11) est reliée à ladite seconde ouverture d'aspiration (19); lesdits moyens de commutation (18) permettant audit dispositif d'aspiration (1) de prendre alternativement une première configuration de fonctionnement (A) dans laquelle ladite première ouverture d'aspiration (6) et ladite seconde ouverture d'aspiration (19) sont toutes deux reliées à un élément d'aspiration dudit dispositif d'aspiration (1) agencé pour interagir avec un produit devant être aspiré, et une seconde configuration de fonctionnement (B) dans laquelle ladite première ouverture d'aspiration (6) est reliée audit élément d'aspiration et ladite seconde ouverture d'aspiration (19) est reliée à une ouverture d'évacuation (22) desdits premiers moyens d'aspiration (5), caractérisé en ce que ladite seconde chambre (11) comprend des moyens de passage d'entrée (8) reliés audit élément d'aspiration dans lequel sont agencés de seconds moyens de vanne (9) qui permettent à de l'air de passer de moyens de collecte (2) dudit dispositif d'aspiration (1) à ladite seconde chambre (11) et empêchent de l'air de passer de ladite second chambre (11) auxdits moyens de collecte (2); lesdits seconds moyens de vanne (9) étant mobiles entre une configuration d'ouverture (H2) dans laquelle ladite seconde chambre (11) et ledit élément d'aspiration sont mutuellement reliés, et une configuration de fermeture (K2) dans laquelle ladite second chambre (11) et ledit élément d'aspiration ne sont pas mutuellement reliés, et en ce que lesdits seconds moyens de vanne (9) comprennent une vanne automatique et prennent ladite configuration d'ouverture (H2) lorsque la pression à l'intérieur dudit élément d'aspiration est supérieure à la pression à l'intérieur de ladite seconde chambre (11) et ladite configuration de fermeture (K2) lorsque la pression à l'intérieur dudit élément d'aspiration est inférieure à la pression à l'intérieur de ladite seconde chambre (11).
  2. Dispositif d'aspiration selon la revendication 1, dans lequel lesdits moyens de vanne (24) peuvent être commandés par un utilisateur.
  3. Dispositif d'aspiration selon la revendication 1 ou 2, dans lequel lesdits moyens de vanne (24) sont mobiles entre une position ouverte (Y) dans laquelle lesdits moyens de vanne (24) n'obstruent pas des moyens de passage (25) s'étendant entre ladite première chambre (12) et ladite seconde chambre (11), et une position fermée (X) dans laquelle lesdits moyens de vanne (24) obstruent lesdits moyens de passage (25).
  4. Dispositif d'aspiration selon l'une quelconque des revendications précédentes, dans lequel ladite première chambre (12) comprend des moyens de passage de sortie (15) reliés à un conduit d'évacuation (13) dudit dispositif d'aspiration (1).
  5. Dispositif d'aspiration selon la revendication 4, dans lequel dans lesdits moyens de passage de sortie (15) sont agencés de premiers moyens de vanne (14).
  6. Dispositif d'aspiration selon la revendication 5, dans lequel lesdits premiers moyens de vanne (14) sont mobiles entre une configuration d'ouverture (H1) dans laquelle ladite première chambre (12) et ledit conduit d'évacuation (13) sont mutuellement reliés, et une configuration de fermeture (K1) dans laquelle ladite première chambre (12) et ledit conduit d'évacuation (13) ne sont pas mutuellement reliés.
  7. Dispositif d'aspiration selon la revendication 6, dans lequel lesdits moyens de vanne (14) comprennent une vanne automatique, lesdits premiers moyens de vanne (14) prenant ladite configuration d'ouverture (H1) lorsque la pression à l'intérieur de ladite première chambre (12) est supérieure à la pression à l'intérieur dudit conduit d'évacuation (13) et ladite configuration de fermeture (K1) lorsque la pression à l'intérieur de ladite première chambre (12) est inférieure à la pression à l'intérieur dudit conduit d'évacuation (13).
  8. Dispositif d'aspiration selon l'une quelconque des revendications 4 à 7, dans lequel lesdits seconds moyens d'aspiration (20) comprennent une ouverture d'évacuation supplémentaire (23) reliée audit conduit d'évacuation (13).
EP20090161474 2009-05-29 2009-05-29 Dispositif d'aspiration Active EP2255708B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20090161474 EP2255708B1 (fr) 2009-05-29 2009-05-29 Dispositif d'aspiration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20090161474 EP2255708B1 (fr) 2009-05-29 2009-05-29 Dispositif d'aspiration

Publications (2)

Publication Number Publication Date
EP2255708A1 EP2255708A1 (fr) 2010-12-01
EP2255708B1 true EP2255708B1 (fr) 2013-01-09

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EP20090161474 Active EP2255708B1 (fr) 2009-05-29 2009-05-29 Dispositif d'aspiration

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EP (1) EP2255708B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10729299B2 (en) 2016-01-19 2020-08-04 Festool Gmbh Suction device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013111769A1 (de) * 2013-10-25 2015-04-30 Sprintus Gmbh Saugeinrichtung
SE544297C2 (en) * 2020-05-28 2022-03-29 Husqvarna Ab Improved blower arrangements and silencers for dust extractors

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064587A (en) * 1933-07-08 1936-12-15 Electrolux Corp Vacuum cleaner
FR2733406B1 (fr) 1995-04-28 1997-07-04 Anumsa Perfectionnement pour installation d'aspiration
WO2000059357A1 (fr) 1999-04-06 2000-10-12 Shop Vac Corporation Aspirateur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10729299B2 (en) 2016-01-19 2020-08-04 Festool Gmbh Suction device

Also Published As

Publication number Publication date
EP2255708A1 (fr) 2010-12-01

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