JP2014526934A5 - - Google Patents

Claims (15)

A single rotating brush rotatable brush shaft as an axis, wherein the rotary brush has a flexible brush element, during said rotation of the rotary brush, to contact the brush element and the surface to be cleaned The brush element has a tip that touches the surface and picks up dust particles and liquid from the surface during the pick-up period, and the linear density of the plurality of brush elements is at least less than 150 g / 10 km at the tip A rotating brush;
A single squeegee element for pushing or wiping dust particles and liquid on the surface during movement of a cleaning device , the squeegee element being spaced from the rotating brush and substantially on the brush shaft Extending along substantially parallel length directions,
The squeegee element defining a suction area in a nozzle device between the squeegee element and the rotating brush;
A driving means for rotationally driving the rotary brush, said drive means during rotation of said rotary brush, dust emission during a period in which the brush element is not in contact with said surface, at least 3,000m at the tip portion Nozzle device for a hard floor cleaning device comprising the drive means for realizing a centrifugal acceleration of / s ² . 2. Nozzle device according to claim 1, wherein the longitudinal direction of the brush shaft and / or the squeegee element traverses the intended direction of movement of the cleaning device, preferably orthogonal to the direction of movement. The squeegee element has a switching means for switching the squeegee element between a closed position and an open position, in the closed position, the squeegee element when viewed in the moving direction of the cleaning apparatus of the rotary brush When the cleaning device moves forward on the surface so as to be located behind, the squeegee element pushes or wipes dust particles and liquid on the surface, and in the open position, the direction of movement of the cleaning device When the squeegee element moves backward on the surface so that the squeegee element is located in front of the rotating brush, debris particles and liquid from the surface open an opening between the squeegee and the surface. The nozzle device according to claim 1, wherein the nozzle device is capable of entering through the suction area. Said nozzle device has a nozzle housing surrounding the rotary brush at least partially, the squeegee element is attached to the housing, a nozzle device according to claim 1. Positioning the brush shaft from the surface at a distance less than the radius of the rotating brush with the brush element in a fully extended state to achieve indentation of the portion of the rotating brush that contacts the surface during operation The nozzle device according to claim 1, further comprising means, wherein the indentation is 2 to 12% of the diameter of the rotating brush. The nozzle device according to claim 1, wherein the packing density of the brush elements is at least 30 brush element tufts / cm ² and the number of brush elements per tuft is at least 500. 2. The nozzle device according to claim 1, wherein a linear density of a majority of the total number of the brush elements is less than 20 g / 10 km at least at the tip portion. 2. The driving device according to claim 1, wherein the driving unit drives the rotating brush at an angular velocity of 3,000 to 15,000 times / minute, more preferably 5,000 to 8,000 times / minute, during operation of the apparatus. Nozzle device. When the brush element is in a fully extended state, the diameter of the rotating brush is 10-100 mm, more preferably 20-80 mm, most preferably 35-50 mm, and the length of the brush element is 1-20 mm, The nozzle device according to claim 1, which is preferably 8 to 12 mm. The liquid, having a means for supplying to the rotary brush at a speed of width less than 1cm per 6 ml / min of the rotary brush where the brush shaft extends, the nozzle device according to claim 1. The nozzle device according to claim 1, further comprising means for generating an airflow on the opposite side of the squeegee element of the rotating brush in a region where the rotating brush contacts the surface during operation of the device. The position of the rotary brush during rotation in contact with said surface, having a deflector in contact with the rotary brush at the position of the front as viewed in the direction of rotation, the nozzle device according to claim 1. The nozzle device according to claim 1, wherein the rotating brush is a spiral brush having a tuft in a spiral pattern on an outer periphery of the rotating brush. A nozzle device according to claim 1;
A vacuum aggregate for generating negative pressure in the suction area for sucking dust particles and liquid;
Hard floor cleaning device for cleaning the surface. 15. A hard floor cleaning apparatus according to claim 14 , wherein the negative pressure generated by the vacuum aggregate is 3 to 70 mbar, preferably 4 to 50 mbar, most preferably 5 to 30 mbar.