WO2022256513A1 - Dispositif de nettoyage de surface - Google Patents

Dispositif de nettoyage de surface Download PDF

Info

Publication number
WO2022256513A1
WO2022256513A1 PCT/US2022/031937 US2022031937W WO2022256513A1 WO 2022256513 A1 WO2022256513 A1 WO 2022256513A1 US 2022031937 W US2022031937 W US 2022031937W WO 2022256513 A1 WO2022256513 A1 WO 2022256513A1
Authority
WO
WIPO (PCT)
Prior art keywords
brushroll
cutting member
agitating
surface cleaner
brushroll chamber
Prior art date
Application number
PCT/US2022/031937
Other languages
English (en)
Inventor
Robert Mcrorie
Original Assignee
Techtronic Cordless Gp
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 Techtronic Cordless Gp filed Critical Techtronic Cordless Gp
Publication of WO2022256513A1 publication Critical patent/WO2022256513A1/fr
Priority to US18/524,796 priority Critical patent/US20240090720A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls
    • 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
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0427—Gearing or transmission means therefor
    • A47L9/0433—Toothed gearings

Definitions

  • the present invention relates to surface cleaners including a brushroll assembly.
  • the present invention relates to a surface cleaner.
  • the cleaning head includes a housing including a brushroll chamber, a brushroll assembly, a suction inlet, a suction source, and a cutting member.
  • the brushroll chamber has a front side, a rear side, an upper side, and a lower side with an opening adjacent a surface to be cleaned.
  • the brushroll assembly is rotatably mounted in the brushroll chamber.
  • the brushroll chamber includes one or more agitating members. The one or more agitating members are positioned to extend through the opening to agitate the surface to be cleaned.
  • the suction inlet is positioned in the front side of the brushroll chamber and is in communication with a brushroll chamber outlet in the rear side of the brushroll chamber.
  • the suction source is in fluid communication with the suction inlet and the brushroll chamber outlet for generating a working air flow through the housing.
  • the cutting member extends from the rear side of the brushroll chamber toward the brushroll assembly. The cutting member extends parallel to the brushroll axis 100 and does not engage the one or more agitating members. The cutting member is positioned adjacent the brushroll chamber outlet and is configured to cut debris off the brushroll assembly to facilitate debris intake through the brushroll chamber outlet.
  • the surface cleaner includes a housing including a brushroll chamber, a brushroll assembly, a suction inlet, a suction source, and a cutting member.
  • the brushroll chamber has a front side, a rear side, an upper side, and a lower side with an opening adjacent a surface to be cleaned.
  • the brushroll assembly is rotatably mounted in the brushroll chamber.
  • the brushroll assembly has a first agitating portion, a second agitating portion, and a track portion positioned between the first agitating portion and the second agitating portion. The first agitating portion and the second agitating portion extend through the opening to agitate the surface to be cleaned.
  • the suction inlet is positioned in the front side of the brushroll chamber and is in communication with a brushroll chamber outlet in the rear side of the brushroll chamber.
  • the suction source is in fluid communication with the suction inlet and the brushroll chamber outlet for generating a working air flow through the housing.
  • the cutting member extends from the rear side of the brushroll chamber and includes a gear portion. The gear portion is positioned to engage the track portion. The cutting member is configured to inhibit debris wrap around the first agitating portion and the second agitating portion when the brushroll assembly rotates.
  • FIG. 1 is a perspective view of a cleaning device or floor cleaner according to one embodiment of the invention.
  • Fig. 2 is a cross-section view of taken along line X of Fig. 1.
  • FIG. 2a is a front view of a cleaning head of Fig. 1, shown with an upper portion of a housing and a brushroll removed, according to one embodiment.
  • FIG. 2b is a detail view of the cutting member of Fig. 2a.
  • Fig. 3 is a cross-section view of taken along line X of Fig. 1.
  • Fig. 3a is a front view of a cleaning head of Fig. 1, shown with an upper portion of a housing and a brushroll removed, according to one embodiment.
  • FIG. 3b is a detail view of the cutting member of Fig. 3a.
  • Fig. 4 is a cross-section view of taken along line X of Fig. 1.
  • Fig. 4a is a front view of a cleaning head of Fig. 1, shown with an upper portion of a housing and a brushroll removed, according to one embodiment.
  • FIG. 4b is a detail view of the cutting member of Fig. 4a.
  • Fig. 5 is a cross-section view of taken along line X of Fig. 1.
  • Fig. 5a is a front view of a cleaning head of Fig. 1, shown with an upper portion of a housing and a brushroll removed, according to one embodiment.
  • Fig. 5b is a detail view of the cutting member of Fig. 5a.
  • Fig. 6 is a cross-section view of taken along line X of Fig. 1.
  • Fig. 6a is a front view of a cleaning head of Fig. 1, shown with an upper portion of a housing and a brushroll removed, according to one embodiment.
  • Fig. 6b is a detail view of the cutting member of Fig. 6a.
  • Fig. 7 is a cross-section view of taken along line X of Fig. 1.
  • Fig. 7a is a front view of a cleaning head of Fig. 1, shown with an upper portion of a housing and a brushroll removed, according to one embodiment.
  • Fig. 7b is a detail view of the cutting member of Fig. 7a.
  • Fig. 8 is a rear view of a cleaning head of Fig 1, shown with a transparent housing, according to one embodiment.
  • Fig. 9 is a side view of the cleaning head shown in Fig. 8.
  • Fig. 10 is a rear view of a cleaning head of Fig 1, shown with a transparent housing, according to one embodiment.
  • Fig. 11 is a side view of the cleaning head shown in Fig. 10.
  • the disclosure relates to a floor cleaner such as a vacuum cleaner, an extractor, or the like, and more specifically, a cleaning head 12 for a floor cleaner 10.
  • Fig. 1 illustrates a floor cleaner 10.
  • the floor cleaner 10 includes a cleaning head 12 having a housing 14 including a brushroll chamber 16 formed in the housing 14, the brushroll chamber extending along a brushroll axis 100.
  • the brushroll chamber 16 includes a front side 30, a rear side 32, an upper side 34, and a lower side 36.
  • the lower side 36 has an opening 38 adjacent a surface to be cleaned 50 forming a suction inlet 15.
  • a brushroll chamber outlet 17 is formed in the rear side 32, and a brushroll assembly 20 is rotatably mounted in the brushroll chamber 16. The brushroll assembly 20 rotates about the brushroll axis 100.
  • the suction inlet 15 is positioned in a front portion 26 of the housing 14 and is in communication with the brushroll chamber outlet 17 in the rear side 32 of the brushroll chamber 16.
  • a suction source 18 is in fluid communication with the suction inlet 15 and the brushroll chamber outlet 17 for generating a working air flow along an air flow path through the housing 14. Air enters the housing 14 through the suction inlet 15, through the brushroll chamber outlet 17 and along the air flow path to the suction source 18 and an exhaust outlet.
  • the brushroll chamber outlet 17 is centrally positioned on the rear side 32 of the brushroll chamber 16.
  • the brushroll chamber outlet 17 has a width 84 measured along the brushroll axis 100.
  • the brushroll assembly 20 includes one or more agitating member 22.
  • the agitating members 22 are positioned to extend through the opening 38 to agitate the surface to be cleaned 50 during operation.
  • the agitating members 22 are vanes extending between a first longitudinal end of the brushroll assembly and a second end, and are spaced around the circumferential surface of an agitator body.
  • the vanes 22 extend along the agitator body in a helical arrangement.
  • the vanes 22 extend along the agitator body in a chevron arrangement.
  • the agitating members 22 may be bristles, cloth, microfiber, semi-rigid protrusions or the like.
  • the agitating members 22 extend outwardly from the agitator body to an agitating tip 24.
  • the agitating tip 24 forms an outer perimeter of the brushroll assembly 20.
  • the agitating tip 24 is configured to contact the surface to be cleaned 50 through the opening 38.
  • the agitating tip 24 is positioned to be spaced a distance from the housing 14.
  • a cutting member 40 extends from the rear side 32 of the brushroll chamber 16 toward the agitating members 22.
  • the cutting member 40 includes a proximal end 62 attached to the housing 14 and a distal end 64 extending toward the brushroll assembly 20.
  • the cutting member 40 extends along the brushroll axis 100 spaced from the one or more agitating member 22.
  • the cutting member 40 extends toward the agitating members 22 but does not engage the agitating tip 24.
  • the cutting member 40 is positioned to cut the debris off the brushroll assembly 20 to inhibit wrapping of the longer debris around the brushroll assembly.
  • cut or cutting are not limited to severing or cutting but includes rubbing, removing, dislodging, tearing, pulling, grinding, and the like.
  • the cutting member 40 includes a blade edge 42 at the distal end 64, extending nearest the agitating tip 24.
  • the blade edge 42 helps facilitate cutting of debris from the brushroll assembly 20.
  • the blade edge 42 is spaced between 0 and 1.5 millimeters from the agitating tip 24.
  • the blade edge 42 is spaced between 1 and 3 millimeters from the agitating tip 24.
  • the blade edge 42 is spaced between 3 and 5 millimeters from the agitating tip 24.
  • the blade edge 42 being spaced from the agitating members 22 and agitating tip 24 allows debris to be removed, while reducing wear on the agitating members 22 from repeated engagement with the blade edge 42.
  • the blade edge 42 may be sharp, semi-sharp, blunt, serrated, or abrasive as desired for the application.
  • the cutting member 40 is positioned adjacent the brushroll chamber outlet 17 in order to cut debris wrapped around the brushroll assembly 20 and facilitate debris intake through the brushroll chamber outlet 17. In the embodiments illustrated in Figs. 2-5, the cutting member 40 extends over a portion of the brushroll chamber outlet 17. In one embodiment, the cutting member 40 is positioned at a top portion of the brushroll chamber outlet 17 or above the brushroll chamber outlet 17. The cutting member 40 is disposed above the lower side 36 of the brushroll chamber 16 and above the opening 38. The cutting member 40 is not configured to contact the surface to be cleaned 50.
  • the cutting member is positioned at a bottom portion of the brushroll chamber outlet 17 or below the brushroll chamber outlet 17.
  • the blade edge 42 at the distal end 64 is disposed on a flange 66 extending upwardly at an angle toward the brushroll assembly 20.
  • the length 80 of the cutting member 40 between the first end 58 and the second end 60 is equal to or greater than the width 84 of the brushroll chamber outlet 17. In one embodiment, the length 80 of the cutting member 40 between the first end 58 and the second end 60 is a length less than the width 84 of the brushroll chamber outlet 17. In one embodiment, the length 80 of the cutting member 40 between the first end 58 and the second end 60 extends a length between 30% and 70% of the length 82 of the brushroll chamber 16. In one embodiment, the length 80 of the cutting member 40 between the first end 58 and the second end 60 extends a length between 70 and 100% of the length 82 of the brushroll chamber 16.
  • the cutting member 40 is stationary.
  • the cutting member 40 extends from a first side 58 to a second side 60, opposite the first side 58.
  • the cutting member 40 extends a length 80 between the first side 58 and the second side 60.
  • the cutting member 40 has an angled blade as defined by the angled extending flange 66.
  • the angled blade arrangement may provide added flexibility and durability for the cutting member 40.
  • the cutting member 40 extends in a polygonal shape varying the elevation of the blade edge 42 between the first side 58 and the second side 60.
  • the cutting member 40 includes a first side portion 70 extending from the first side 58.
  • the first side portion 70 connects to a first connector portion 74 that extends at a steeper angle than the first side portion 70.
  • the first connector portion 74 connects to a generally flat plateau portion 78.
  • the flat plateau portion 78 is a part of the blade edge 42 and extends generally parallel to the brushroll axis 100.
  • the plateau portion 78 extends across the brushroll chamber outlet 17.
  • the plateau portion 78 then connects to a second connector portion 76, which connects to a second side portion 72 at the second side 60.
  • the plateau portion 78 is disposed at an elevation between the lower side 36 and the brushroll axis 100.
  • the blade edge 42 is disposed in the airpath in front of the brushroll chamber outlet 17.
  • the plateau portion 78 is disposed at an elevation above the brushroll axis 100.
  • the blade edge 42 is disposed in the airpath along an upper portion of the brushroll chamber outlet 17.
  • the blade edge 42 at the first side 58 and at the second side 60 is disposed at an elevation between the lower side 36 and the brushroll axis 100.
  • the cutting member 40 shown in both Figs. 3 and 5 is generally symmetrical.
  • the first connector portion 74 and the second connector portion 76 are longer in Fig. 5 compared to Fig. 3.
  • the length and angle of the cutting member 40, and specifically the first connector portion 74 and the second connector portion 76 can be modified based on desired cleaning performance.
  • the cutting member 40 extends in an arc shape varying the elevation of the blade edge 42 between the first side 58 and the second side 60.
  • the cutting member 40 includes the first side portion 70 extending from the first side 58.
  • the first side portion 70 connects to the first connector portion 74 that extends at a steeper angle than the first side portion 70.
  • the first connector portion 74 connects to an arc portion 90.
  • the arc portion 90 extends across the brushroll chamber outlet 17.
  • the arc portion 90 then connects to the second connector portion 76, which connects to the second side portion 72 at the second side 60.
  • the cutting member 40 extends in an arc shape between the first side 58 and the second side 60.
  • the cutting member includes a first side portion 70 extending from the first side 58.
  • the first side portion 70 extends to an arc portion 90.
  • the arc portion 90 generally extends around the brushroll chamber outlet 17.
  • the highest point of the arc portion 90 is disposed at an elevation above the brushroll axis 100.
  • the blade edge 42 at the first side 58 and at the second side 60 is disposed at an elevation between the lower side 36 and the brushroll axis 100.
  • the angle and length of the arc portion 90 can be modified based on desired cleaning performance.
  • the cutting member 40 is a cylindrical blade roll 40 extending from the rear side 32 of the brushroll chamber 16.
  • the cylindrical cutting member 40 includes a plurality of blade edges 42 spaced from the agitating tip 24.
  • the cylindrical spinning blade roll 40 is generally stationary. Once debris begins to wrap around the brushroll assembly 20, the debris fills the space between the agitating tip and the cutting member 40 engaging the cylindrical blade roll 40 causing it to rotate, resulting in cutting debris on the brushroll assembly 20.
  • the spinning blade roll 40 is rotatable about an axis 102 extending between the first end 58 and the second end 60.
  • the spinning blade roll 40 is able to rotate about the axis 102 but does not move toward or away from the agitating member 22.
  • the surface of the cylindrical blade roll 40 is knurled forming the plurality of blade edges 42.
  • the plurality of blade edges 42 is formed by cuting edges.
  • the cylindrical blade roll 40 engages the agitating tip 24 enabling the rotating brushroll assembly to rotate the cutting member.
  • the cylindrical blade roll 40 is spaced from the agitating tip 24 and does not engage the agitating tip 24.
  • the spinning blade roll 40 is spaced between 0 and 1.5 millimeters from the agitating tip 24.
  • the spinning blade roll 40 is spaced between 1 and 3 millimeters from the agitating tip 24.
  • the brushroll assembly 20 includes a first agitating portion 44, a second agitating portion 46, and a geared track portion 48 positioned between the first agitating portion 44 and the second agitating portion 46.
  • the cutting member 40 is a cylindrical blade roll 40 extending from the rear side 32 of the brushroll chamber 16.
  • the cylindrical blade roll 40 includes a gear portion 52.
  • the gear portion 52 is positioned to align with and engage the track portion 48.
  • the gear portion 52 is rotatable about an axis 104.
  • the gear portion 52 is configured to engage the track portion 48 such that the brushroll assembly rotates the gear portion 52.
  • the cutting roll is configured to cut or grind debris accumulated on the brushroll assembly 20.
  • the track portion and the gear portion 52 include friction surfaces instead of gear teeth and the gear portion is driven by friction rather than with teeth.
  • the gear portion 52 is driven by a motor, rather than driven by the rotation of the brushroll assembly.
  • the cylindrical blade roll 40 is positioned adjacent the brushroll chamber outlet 17 so that removed debris leaves the brushroll chamber 16 through the brushroll chamber outlet 17 once it is removed from the brushroll assembly 20.
  • the cuting member 40 extends parallel to the brushroll axis 100 disposed at an elevation between the lower side 36 and the brushroll axis 100.
  • the cylindrical blade roll 40 is disposed in the airpath in front of the brushroll chamber outlet 17.

Landscapes

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

Abstract

L'invention concerne un dispositif de nettoyage de surface comprenant une tête de nettoyage dotée d'un ensemble brosse cylindrique rotative. La tête de nettoyage comprend en outre un élément de coupe conçu pour découper des débris issus de l'ensemble brosse cylindrique.
PCT/US2022/031937 2021-06-02 2022-06-02 Dispositif de nettoyage de surface WO2022256513A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18/524,796 US20240090720A1 (en) 2021-06-02 2023-11-30 Surface cleaner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202163195945P 2021-06-02 2021-06-02
US63/195,945 2021-06-02

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/524,796 Continuation US20240090720A1 (en) 2021-06-02 2023-11-30 Surface cleaner

Publications (1)

Publication Number Publication Date
WO2022256513A1 true WO2022256513A1 (fr) 2022-12-08

Family

ID=82321523

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2022/031937 WO2022256513A1 (fr) 2021-06-02 2022-06-02 Dispositif de nettoyage de surface

Country Status (2)

Country Link
US (1) US20240090720A1 (fr)
WO (1) WO2022256513A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090229075A1 (en) * 2008-03-17 2009-09-17 Electrolux Home Care Products, Inc. Agitator with Cleaning Features
EP2770894A1 (fr) * 2011-10-26 2014-09-03 Aktiebolaget Electrolux Buse de nettoyage pour aspirateur
WO2019133497A1 (fr) * 2017-12-27 2019-07-04 Sharkninja Operating Llc Appareil de nettoyage avec unité de peignage sélectionnable permettant de retirer des débris d'un rouleau de nettoyage
EP3714754A1 (fr) * 2019-03-28 2020-09-30 Bissell Inc. Appareil de nettoyage de surface à collecte en deux étapes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090229075A1 (en) * 2008-03-17 2009-09-17 Electrolux Home Care Products, Inc. Agitator with Cleaning Features
EP2770894A1 (fr) * 2011-10-26 2014-09-03 Aktiebolaget Electrolux Buse de nettoyage pour aspirateur
WO2019133497A1 (fr) * 2017-12-27 2019-07-04 Sharkninja Operating Llc Appareil de nettoyage avec unité de peignage sélectionnable permettant de retirer des débris d'un rouleau de nettoyage
EP3714754A1 (fr) * 2019-03-28 2020-09-30 Bissell Inc. Appareil de nettoyage de surface à collecte en deux étapes

Also Published As

Publication number Publication date
US20240090720A1 (en) 2024-03-21

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