JPH07116099A - Method and device for washing floor surface - Google Patents

Abstract

PURPOSE:To efficiently remove moisture with no residue of washing effluent on a floor surface, and to suck and retrieve the effluent by feeding washing water onto a rotary slide member and by introducing the ambient air to a position near to the rotating center thereof. CONSTITUTION:A substantially inverted bowl shape cover body 1 opened downward incorporates therein a rotary slide member 2 abutting against a floor surface 7 and held axially rotatably, drive means 3 for driving the rotary slide member 2, a water feed pipe 5 for feeding washing water to a position near to the rotating center of the rotary slide member, a ventilating passage 6 for feeding the ambient air to a position neat to the rotating center of the rotary slide member, a water sucking slit 8 continuously surrounding the outer periphery of the rotary slide member and located so as to have a predetermined gap between the slit 8 and the floor surface, sucking means 9 connected to the sucking slit 8, and further a flexible skirt-like pressure holding band 10 continuously surrounding a gap between the outer peripheral edge end of the water sucking slit and the floor surface is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor surface cleaning apparatus, and more particularly, a floor surface cleaning apparatus adapted to perform sliding cleaning such as brushing on the floor surface with a rotary sliding member and to suck and recover the waste water after the cleaning. Regarding

[0002]

2. Description of the Related Art Such a brush body having water sprayed on the floor surface or cleaning water such as detergent water and having bristles applied on the lower surface, or a pad body having a felt-like elastic material attached to the lower surface,
Conventionally, there have been various types of cleaning devices that perform sliding cleaning by abutting the floor (hereinafter, simply referred to as “rotary sliding body”) on the floor surface while rotating the shaft. For example, as the main ones of these, one or more disk-shaped rotary sliding bodies for axial rotation driving are mounted in the cover body provided at the tip of the operating rod or the front lower surface of the moving wagon, Sliding cleaning is performed while supplying cleaning water into or in front of the sliding body, and the dirty water after cleaning is collected by a squeegee or scrubber mounted behind the moving wagon, and sucked by suction means such as a pump. It was a system of collecting. Further, as another example, there is a method of sucking and collecting the cleaning waste water from the rotation center of the rotating brush body, a method of collecting a cleaning waste water by providing a suction pipe in the cover body, and the like.

[0003]

However, in these conventional systems, for example, the system in which a squeegee for sucking and collecting is provided at the rear of the moving wagon, the cleaning wastewater scattered by the centrifugal force of the rotating brush is used. However, there is a drawback that a wide squeegee must be attached or the squeegee must be moved over a wide range for complete recovery. Further, since the squeegee is located behind the traveling direction, it can be adapted to the straight movement, but it is difficult to adapt to the lateral movement or the turning movement. Therefore, it can be applied only to a place having a large floor surface, and the use conditions are largely restricted.

Further, in the system in which the suction brush is collected from the center of the rotating brush, it is natural that the cleaning water flows out in the radial direction by the rotation of the brush, and it is very inefficient to collect the cleaning water from the center. Was there. For this reason, there is also a scrubber that is attached to the center and attached to the bottom surface of the brush and rotated together, but it is still a fundamental solution because it only slightly improves the efficiency.

In order to solve the above problems, the applicant of the present application has previously proposed a floor surface cleaning apparatus using the same principle as the invention of the present application as 1992 Patent Application No. 77350. However, although this was able to solve the above-mentioned problem, the problem existing in the above-mentioned conventional device, that is, the cleaning wastewater is radially discharged by the centrifugal force of the brush body, However, some problems remained.

Therefore, the present invention has been further improved for the purpose of solving these problems, and the cleaning water is supplied to the rotary sliding member and the outside air is introduced into the vicinity of the center of rotation so that the floor surface is covered. It is intended to provide an epoch-making floor surface cleaning device capable of efficiently removing water without leaving a residue of the cleaning waste water and collecting by suction.

[0007]

In order to achieve the above-mentioned object, the floor surface cleaning method and apparatus of the present invention are constructed as follows. In addition, in order to provide an understanding of the basic principle of the present invention, FIGS. FIG. 1 is a vertical cross-sectional view in a direction substantially perpendicular to the floor surface, FIG. 2 is an enlarged vertical cross-sectional view of an essential part showing an enlarged view of the vicinity of the floor surface, and FIG. 3 is a plan view showing a bottom portion abutting on the floor surface. Is.

[0008] A rotary sliding body, such as a brush body, a pad body, etc., which has been in contact with the floor surface and has been axially rotated, has been used in the past.
In the floor surface cleaning method in which cleaning water is supplied to clean the floor surface and then the dirty water is collected by the water absorbing means, the floor surface cleaning method of the present application is the same as the cleaning water in the vicinity of the rotation center of the rotary sliding body (1) and the outside air. Is formed so as to continuously surround the entire outer circumference of the rotary sliding body (1) and the wastewater radiated from the rotary sliding body (1) to the outer periphery, and is formed in the vicinity of the floor surface. The feature is that it is sucked and collected by a pressure band.

Further, the floor surface cleaning apparatus of the present invention which realizes this method is held in a substantially inverted bowl-shaped cover body (1) opened downward so as to come into contact with the floor surface and to be rotatable about its axis.
A disk-shaped rotary sliding body (2) composed of a brush body, a pad body, etc., a drive means (3) for axially driving the rotary sliding body (2), and a water supply means (4) are communicated with each other to make the rotation. Water supply pipe (5) opened near the center of rotation of the sliding body (2)
And a ventilation passage (6) communicating with the outside air and allowing the outside air to flow into the rotary sliding body (2) in the vicinity of the rotation center of the rotary sliding body (2). It is composed of a water absorption slit (8) arranged with a constant gap (C) with the surface (7), and a suction means (9) connected to the water absorption slit (8) to bring the inside of the slit into a negative pressure state. To be done.

Further, the water absorbing slit (8) has flexibility so as to continuously surround the gap (C) between the outer peripheral edge (8t) of the water absorbing slit (8) and the floor surface (7). A skirt-shaped holding band (10) is provided.

[0011]

With the above construction, the rotary sliding body (2) is axially rotated by the drive means (3) while contacting the floor surface (7) (arrow a). The cleaning water is sent to the water supply pipe (5) by the water supply means (4) and is supplied to the vicinity of the rotation center of the rotary sliding body (2) through the water supply pipe (5) (arrow b) and simultaneously. The outside air is supplied to the vicinity of the center of rotation of the rotary sliding body (2) via the air passage (6) communicating with the outside air (arrow c). As a result, the rotation of the sliding shaft of the rotary sliding body (2) and the washing water are combined, and the floor surface (7)
Dirt adhering to the surface is cleaned and polished. The sewage after cleaning is subjected to centrifugal force generated by the rotation of the rotary sliding body (2),
It moves radially (arrow d) by the interaction with the inflowing outside airflow, and is discharged to the outer periphery of the rotary sliding body (2). The discharged dirty water is sucked and collected by the water absorbing slit (8) arranged so as to continuously surround the outer periphery of the rotary sliding body (2) (arrow e). Water absorption slit (8)
Is formed in a negative pressure state by the connected suction means (9).

The inflow of outside air from the ventilation passage (6) is naturally sucked by the negative pressure of the rotation center portion (2c) formed by the rotation of the rotary sliding body (2). Further, the inflowing outside air moves in the outer circumferential direction on the lower surface of the rotary sliding body (2) due to the pressure gradient in the radial direction and the outer circumferential direction formed by the rotation of the rotary sliding body (2). Therefore, the narrower the gap between the lower surface of the rotary sliding body (2) and the floor surface (7), the faster the flow velocity,
Sewage debris will be effectively swept away.

Further, the pressure-holding zone (10) restricts the inflow of outside air (arrow f) from the outer peripheral portion of the suction slit (8), and since it has flexibility, it also functions as a valve and can be appropriately flexed. Thus, the inside of the cover body 1 is maintained at a constant pressure.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an example of a specific embodiment of the floor surface cleaning apparatus of the present invention constructed as described above will be described in detail with reference to the drawings. FIG. 4 is a vertical sectional view of the device of this embodiment. The cover body 1 has an opening at the bottom, and is in a state in which the bowl is laid down to lie down (“inverted bowl shape”).
e is arranged so as to have a constant space C (for example, 5 to several tens of millimeters) from the floor surface 7. Further, from the center of the cover body 1, a cylindrical holding cylinder body 1a having a diameter smaller than that of the cover body 1 is formed so as to stand upright. Inside the holding cylinder 1a, a hollow and vertically open rotary shaft body 11 is rotatably held via bearings 12 arranged at upper and lower positions, respectively.

A disc-shaped flange 13 is formed at the lower end of the rotary shaft body 11, and a disc-shaped brush body 14 serving as a rotary sliding body (2) is provided on the floor surface 7 on the lower surface of the flange 13. It is attached so as to abut. The brush body 14
A large number of bristles 15, 15, ... Are provided on the lower surface, and a circular opening 16 through which the lower end opening 11t of the rotary shaft body 11 is exposed is formed at the center thereof. The brush body 14 is removably attached by a mounting screw 18 with a spring 17 interposed. As a result, the brush body 14 can be replaced with a pad body (not shown) or the like having an elastic material such as felt attached to the back surface.

A crown-shaped lid 19 is fitted over the upper opening 1b of the holding cylinder 1a so as to cover it. The water supply pipe 5 is penetratingly supported at the center of the lid body 19, penetrates the inside of the rotary shaft body 11, and extends to the vicinity of the lower opening 11t and is attached. The outer diameter of the water supply pipe 5 is formed to be smaller than the inner diameter of the rotary shaft body 11, and is arranged with a constant gap between the outer peripheral wall of the water supply pipe 5 and the inner peripheral wall of the rotary shaft body 11. A ventilation path 6 is formed. Further, the lid 19 has an appropriate number of ventilation holes 20.
Are formed. The outside air is introduced into the ventilation path 6 through the ventilation holes 20.

A water supply hose 21 connected to an external water supply means 4 is connected to the water supply pipe 5 exposed from the lid 19 to the upper surface. As a result, the cleaning water supplied from the water supply means 4 via the water supply hose 21 is guided to the water supply pipe 5 and supplied to the center of rotation of the brush body 7.
Since the water supply pipe 5 is fixedly supported by the lid body 19, it does not rotate.

Next, on the outer peripheral side of the cover body 1, an inverted bowl-shaped outer shell body 22 is attached so as to surround the cover body 1 with a certain gap therebetween. The outer shell body 22 is attached such that the upper end portion 22u thereof is attached to the outside of the holding cylinder body 1a in a close contact state, and the opening edge 22e thereof is fixed to the floor surface 7 at a constant distance C (for example, 5-10 mm)
It is arranged so as to have. Further, the opening edge 22e continuously surrounds the outer circumference thereof, and the space C
A flexible band-shaped pressure-holding band 10 such as a rubber plate is attached in a skirt shape so as to close the.

As a result, the opening edge 22e of the outer shell 22 is formed.
With the opening edge 1e of the cover body 1, a water absorption slit 8 that continuously surrounds the outer periphery of the brush body 14 is formed. The water absorption slit 8 includes a cover body 1 and an outer shell body 22.
The space 23 is connected to a suction means 9 such as an external pump (not shown) through a connector 24 and a suction hose 25. Due to the action of the suction means 9, a negative pressure state is formed in the space 23 and the suction slit 8, and the cleaning dirty water flowing and discharged to the outer periphery of the brush body 14 is sucked. The sucked dirty water is sucked into the suction slit 8, the space 23, and the suction hose 25.
And is collected by the suction means 9.

Next, a pulley 26 is annularly fixed to the rotary shaft 11 in the middle of its body.
Is linked via a belt 27 to a motor 28 which is fixed in parallel outside the holding cylinder 1a. Thus, the rotational driving force of the motor 28 is the belt 27 and the pulley 26.
To the rotary shaft body 11 and the brush body 14 attached to the rotary shaft body 11 to rotate the shaft.

An operating rod 29 is attached to the outer side of the holding cylinder 1a to move the floor surface cleaning apparatus of this embodiment on the floor surface 7 in the front-rear direction or the left-right direction. In addition, in the present embodiment, the brush body is made single and the cleaning water is supplied to the center of rotation, but the present invention is not limited to this, and a plurality of, for example, three brushes are provided. The brush body may be arranged at the apex of an equilateral triangle, and the cleaning water and the outside air may be supplied to the center of the triangle.

Therefore, when a plurality of such brush bodies 14 are arranged, the suction slit 8 does not need to be circular as in the present embodiment, but may be a closed curve shape that surrounds the plurality of brush bodies 14 as a whole. However, it may have an appropriate shape.

[0023]

[Effect] Since the floor surface cleaning device of the present application is configured as described above, it has the following effects. That is, since the suction slit is arranged so as to surround the outer periphery of the opening edge of the cover body, the cleaning dirty water radially discharged from the cover body by the axially rotating brush body is efficiently collected without leaking. be able to.

Further, since the outside air is introduced into the rotation center of the rotary sliding body together with the washing water, the centrifugal force of the rotary sliding body and the air flow are combined with each other to wash the air. The water remaining on the surface can be more efficiently blown off and discharged to the outer circumference. That is, a remarkable effect can be obtained in that the cleaned surface can be finished in a state where there is no sewage residue and almost no water.

Further, since the suction slits in a negative pressure state are continuously arranged around the outer periphery of the rotary sliding member, the floor surface other than the cleaning surface is directly collected without being wetted by the cleaning waste water. be able to. Therefore, even in a narrow portion, the floor surface can be cleaned with the cleaning water as long as there is an interval through which the device can pass.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing the basic principle of the present invention,
It is a longitudinal cross-sectional view of a substantially vertical direction to a floor surface.

FIG. 2 is an explanatory diagram showing the basic principle of the present invention,
FIG. 3 is an enlarged vertical sectional view of an essential part showing an enlarged view of the vicinity of a floor surface.

FIG. 3 is an explanatory diagram showing the basic principle of the present invention,
It is a top view which shows the bottom part which contacts a floor surface.

FIG. 4 is a vertical sectional view showing an example of a specific embodiment of the present invention.

[Explanation of symbols]

1 ... Cover body 2 ... Rotating sliding body 3
... Drive means 4 ... Water supply means 5 ... Water supply pipe 6
・ ・ ・ Ventilation path 7 ・ ・ ・ Floor surface 8 ・ ・ ・ Water absorption slit 9
・ ・ ・ Suction means 10 ・ ・ ・ Holding band 11 ・ ・ ・ Rotating shaft 14
・ ・ ・ Brush body 20 ・ ・ ・ Vent hole 22 ・ ・ ・ Outer shell body 23
... Space 28 ... Motor

Front page continuation (72) Inventor Kamo Watanabe 65 Okawara, Koriyama City, Fukushima Prefecture Koriyama Narasaki Manufacturing Co., Ltd.

Claims (3)

[Claims] 1. A brush body that comes into contact with a floor surface and rotates about an axis,
In a floor surface cleaning method in which cleaning water is supplied to a rotary sliding body composed of a pad body, etc. to clean the floor surface, and then the dirty water is collected by a water absorbing means. The sewage radiated from the rotary sliding body to the outer circumference is sucked and collected by a negative pressure zone formed so as to continuously surround the outer circumference of the rotary sliding body and close to the floor surface. A method for cleaning a floor surface, characterized in that 2. A substantially inverted bowl-shaped cover body (1) having a downward opening is held in contact with a floor surface so as to be rotatable about its axis.
A disk-shaped rotary sliding body (2) composed of a brush body, a pad body, etc., a driving means (3) for axially driving the rotary sliding body, and a water supply means (4) are connected to each other, and the rotary sliding body ( 2) A water supply pipe (5) opened in the vicinity of the substantially rotation center, and a ventilation path (6) communicating with the outside air and allowing the outside air to flow into the vicinity of the substantially rotation center of the rotary sliding body (2); A water absorption slit (8) arranged so as to continuously surround the outer periphery of the moving body (2) and with a constant gap (C) from the floor surface (7), and the water absorption slit (8) being connected to the water absorption slit (8). A floor cleaning device comprising: a suction means (9) for bringing the inside of the slit (8) into a negative pressure state. 3. In the water absorption slit (8), further, the outer peripheral lower edge (8t) of the water absorption slit (8).
The floor cleaning according to claim 2, wherein a flexible skirt-shaped pressure-holding zone (10) is provided so as to continuously surround the gap (C) between the floor and the floor (7). apparatus.