JP-7854740-B1 - Floor cleaning methods

JP7854740B1JP 7854740 B1JP7854740 B1JP 7854740B1JP-7854740-B1

Abstract

[Problem] To provide a floor cleaning method that can shorten the construction period and reduce manpower for floor cleaning work, while also improving cleaning quality and extending the lifespan of cleaning vehicles. [Solution] The method includes the steps of: rotating the side brushes 8 in opposite directions to sweep the debris from the floor surface F towards the inside and rear of the cleaning vehicle 2; rotating the horizontal brush 16 to sweep the debris swept out by the side brushes 8 back towards the front of the cleaning vehicle 2; a dry separation step in which the debris swept back by the horizontal brush 16 is sucked up and separated via a filter 20; rotating a plurality of scrub brushes 26 to polish the floor surface F; applying water or cleaning solution to the floor surface F or the scrub brushes 26 themselves between the horizontal brushes 16 and the scrub brushes 26; and a wet separation step in which a squeegee 36 positioned behind the scrub brushes 26 dams up and sucks up the sludge water 38 agitated by the scrub brushes 26 and separates it via a filter 42. [Selection Diagram] Figure 1

Inventors

中川公夫

Assignees

株式会社フロアーサポート

Dates

Publication Date: 20260507
Application Date: 20241223

Claims (3)

A floor cleaning method performed while an engine-powered and/or electric-powered cleaning vehicle is in motion, The process involves rotating a pair of disc-shaped side brushes, positioned on both sides of the front of the cleaning vehicle in the direction of travel, in opposite directions to sweep debris from the floor surface inward and towards the rear of the cleaning vehicle. Along with the sweeping step, the process includes rotating a cylindrical lateral brush that has a length extending in the width direction of the cleaning vehicle and is positioned behind the pair of side brushes to sweep the debris swept out by the pair of side brushes back towards the front of the cleaning vehicle, Along with the sweeping step, a dry separation step is performed in which the debris swept back by the horizontal brush is sucked up and separated through a filter, Along with the sweeping step, the process involves rotating a plurality of disc-shaped scrub brushes, which are positioned behind the horizontal brush and offset in the width direction of the cleaning vehicle, to polish the floor surface. Along with the step of polishing the floor surface, the step of applying water or cleaning solution to the floor surface between the horizontal brush and the scrub brush or to the scrub brush itself, Along with the step of polishing the floor surface, a wet separation step is performed in which a squeegee positioned behind the scrub brush is used to dam and suck up the sludge water agitated by the scrub brush, and separate it through a filter. Along with the dry separation process, the cleaning vehicle also includes a floating debris suction process in which floating debris stirred up by the rotation of the pair of side brushes is sucked up from an air intake provided on the front of the cleaning vehicle, passed through a filter, and then exhausted to the outside of the cleaning vehicle. Along with the sweeping step, the process includes spraying mist around the pair of side brushes from a nozzle located behind the air intake in the direction of travel of the cleaning vehicle and capable of spraying mist forward in the direction of travel of the cleaning vehicle, A floor cleaning method characterized by including the following.
The floor cleaning method according to claim 1, characterized in that the suction source in the dry separation step and the suction source in the step for sucking up airborne debris are the same suction source, and the filter in the dry separation step and the filter in the airborne debris suction step are the same filter.
The floor cleaning method according to claim 1 or 2, characterized in that the cleaning width is 1500 mm or more.

Description

This invention relates to a floor cleaning method suitable for cleaning large floor surfaces such as concrete slabs, and more particularly to a floor cleaning method suitable for cleaning floors during floor construction associated with the new construction or renovation of large buildings such as factories, hospitals, and large shopping malls. Traditionally, cleaning large floor surfaces of this type involved workers performing rough cleaning with brooms and blowers, then polishing with a floor polisher, removing dust generated by the polisher with a coat brush, and finally cleaning with a floor cleaning machine. However, this process is excessively time-consuming and inevitably increases labor costs. Therefore, in recent years, automation using large machinery has advanced to perform rough cleaning and polishing simultaneously, achieving both time savings and reduced labor costs. Patent Document 1 discloses a floor cleaning and polishing machine that uses a pair of cylindrical brushes rotated in opposite directions to sweep debris from the floor surface into an upper hopper for filtering, and, when cleaning solution is applied to the pair of cylindrical brushes, uses a vacuum squeegee positioned at the rear to suck up the sludge water. The waste hopper that receives the sludge water from the vacuum squeegee is provided to be raised and lowered by a hopper lift. Furthermore, a liquid dispensing system is provided in front of the pair of cylindrical brushes to wet the floor surface and suppress the airborne dispersion of dust. Patent No. 4779013 This is a schematic side view of a cleaning vehicle used to carry out floor cleaning work using the floor cleaning method of the present invention.Figure 1 is a bottom view of the cleaning vehicle.This is a schematic diagram showing the area to be covered by the floor cleaning work. The embodiments of the present invention will be described in detail below with reference to the attached drawings. Figure 1 is a side view showing an overview of a cleaning vehicle used to perform floor cleaning work according to the floor cleaning method of this embodiment, and Figure 2 is a bottom view thereof. Figure 3 is a schematic diagram showing the target area for floor cleaning work. [Overview of floor cleaning work] The following outlines the procedure for performing floor cleaning work using a floor cleaning method according to one embodiment of the present invention. The following explanation uses the procedure for floor cleaning work performed during floor surface construction associated with the new construction or renovation of large buildings such as factories, hospitals, and large shopping malls as an example. (1) Preparations before construction As preparations before floor cleaning work, furniture should be moved, rough cleaning and scraping (the process of removing mortar residue and other debris adhering to the concrete surface of the floor and walls) should be completed by the day before the floor cleaning work is to be carried out. Also, the locations for water intake and drainage in the area to be cleaned should be decided in advance. Furthermore, if an automatic floor cleaning machine is to be used, since lifting is not possible, check whether an elevator is available and whether ramps and ramps are installed so that the machine can travel on all floors. Also, check that the necessary lighting for the work is prepared. If there is an electrical distribution board or other equipment installed in the work area, take measures in advance such as installing it so that it is elevated from the floor surface. (2) During Construction When floor cleaning work is carried out, the following steps (A) to (D) are performed in this order. However, with the floor cleaning method of this embodiment, these steps can be carried out at once as a series of steps by operating a single cleaning vehicle 2 (see Figures 1 and 2). As a result, compared to the conventional method in which each of these steps is carried out as a separate operation using manpower or small work vehicles capable of performing only the individual steps, it is possible to shorten the construction period and significantly reduce the manpower required for floor cleaning work. (A) Rough floor cleaning process (B) Floor polishing process (C) Floor water washing process (D) Floor moisture removal (drying) process The following details the specific procedures for carrying out the floor cleaning work described above. [Detailed explanation of the floor cleaning process] As shown in Figure 1, the cleaning vehicle 2 is a manned or unmanned cleaning vehicle that runs on an engine and/or electric drive, and has left and right front wheels 4 and a rear center wheel 6. The rear wheel 6 is a followable driven wheel. On the lower sides of both sides of the front of the cleaning vehicle 2 in the direction of travel (arrow X direction), there is a pair of disc-shaped side brushes 8 that are rotated around a vertical axis by a mot