Washer dryer scrubbing machine

• US 8,689,394 B2
• Filed: 08/24/2011
• Issued: 04/08/2014
• Est. Priority Date: 09/15/2010
• Status: Active Grant

• Current Assignee: EvoTech Italia S.r.l.
• Original Assignee: Vittoria Bettuzzi
• Inventors: Bettuzzi, Vittoria
• Primary Examiner(s): NGUYEN, DUNG V
• Application Number:
  US13/199,243
• Publication Number:
  US 20120060318A1
• Time in Patent Office: 958 Days
• Field of Search: 153/20, 153401-3404, 153/48, 153/49
• US Class Current: 15/320
• CPC Class Codes: A47L 11/302 having rotary tools
• CPC Class Codes: A47L 11/4041 Roll shaped surface treating tools
• CPC Class Codes: A47L 11/4044 Vacuuming or pick-up tools; Squeegees

Abstract

A washer-drier scrubbing machine includes a rotating roll brush the surface covered by spiked bristles facing upwards and towards the center near the front portion, and is covered by a casing which extends downwards and near the ground is provided with a “flap” having aligned openings oriented and facing the floor at the sides of the casing and facing the ground are sprayers fed with water-detergent mixtures pumped from a tank. Proximate the sprayers are arranged diffusers of compressed air which prevent the sprayed washing mixture from expanding outside the outline of the casing and being conveyed only towards the casing openings and towards a rotating brush and not beyond, on the track along which the machine proceeds the dirty water collected by the brush is sent to a tank through a separator which retains the high consistency dirt, and an intermediate container.

Claims

1. Washer-drier scrubbing machine comprising a rotating roll brush (1) having anticlockwise rotation, characterised in that the brush thereof is arranged close to a structure (2) with the lower edge provided with a “

flap”

(F) comprising aligned openings (3) facing the floors, at the sides of said “

flap”

being arranged some sprayers (4) of water-detergent mixtures and diffusers of compressed air (7) oriented towards the openings thereof (3) and the brush thereof (1) whereto are associated a separator (8) and an intermediate container (9) comprising a bi-helical screw brush (10) converging to the centre and communicating with a tank (12) with suction motor (13);

said diffusers of compressed air (7) being fed by a fan (14) the suction inlet thereof, arranged inside a tank (15) act as a suction and collection element for the dirty water collected by a parabolic rear floor wiper (16) provided with pressure regulating means for some shaped rubbing rubbers, front (17′

) and rear (17″

).

2. Washer-drier scrubbing machine according to claim 1, characterised in that the peripheral surface thereof of said anticlockwise rotating roll (1) is covered of spiked bristles (1′

) facing upwards and arranged from the (R) and (L) sides towards the central symmetry axis (Y).

3. Washer-drier scrubbing machine according to claim 1, characterised in that the dirt having the bigger consistency collected by said brush (1) settles in said separator (8).

4. Washer-drier scrubbing machine according to claim 1, characterised in that the liquid portion collected by said brush (1), is collected in said container (9) comprising said bi-helical screw brush (10) converging to the centre and is recalled in said tank (12) through a duct (11) connected to the suction motor (13).

5. Washer-drier scrubbing machine according to claim 1, characterised in that said floor wiper (16) does not protrude from the outer outline of the machine and of said rotating brush (1), is arranged close to the rear wheels of the machine and the vertical lowering thereof on the floors is achieved by means of a trolley (16″

) sliding on guides which allows lateral oscillations thereof.

6. Washer-drier scrubbing machine according to claim 1, characterised in that the pressure of said floor wiper (16) on the floors, which compresses said front (17′

) and rear (17″

) shaped rubbers, is achieved with elastic means, such as springs (18) having an adjustable regulator (19).

7. Washer-drier scrubbing machine according to claim 1, characterised in that during the contact phase of said shaped rubbers (17′

, 17″

) with the floors they cant towards the interior of the structure of the floor wiper (16) and comprise resting end blocks (20) causing the correct edge operation, also in the correspondence or the proximity of any subsidence and/or irregularity of the floors to process.