JPH09206260A - Squeegee for floor surface cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cleanly absorb sewage to be cleaned without leaving the sewage on a recessed/projecting surface part by constituting the sewage absorption face of a squeegee in such a state that small absorption ports are opened downward and that a lot of divided squeegee bodies whose whole is formed into an approximately cylindrical shape are arranged. SOLUTION: A floor surface cleaner is loaded with a rotary brush 2, a tank for clean liquid or wash liquid CW, and a tank 4 for sewage DW. The absorption force of a blower 10T makes a squeegee 6 connected to the rear part of the device body 1 to absorb the sewage on a floor face so as to recover it into a sewage tank 4 through a vacuum hose 9. In this case, the sewage absorption face of the squeegee 6 is formed by arranging a lot of divided squeegee bodies 6X-6Z in such states that the small absorption ports are opened downward in the inner bottom part of a case body 6a on which the absorption force of the blower 10T is applied and that the whole is formed into approximately cylindrical shape, and these bodies are mutually coupled with each other by a flexible membrane body 6H so as to operate independently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field of a floor cleaning machine (scrubber) for cleaning a floor surface by rotating a rotating brush while traveling, and more specifically, it relates to a rotating brush. The present invention relates to an improvement of a squeegee that collects and collects dirty water remaining on the floor surface after being washed by the suction action of a blower.

[0002]

2. Description of the Related Art A conventional floor cleaning machine is used as a squeegee for absorbing dirty water after cleaning as disclosed in, for example, Japanese Utility Model Laid-Open No. 6-38848, No. 6-79454 or No. 6-58853. A squeegee having a structure in which two front and rear rubber plates are opposed to each other in parallel with an interval is used.

FIG. 6 shows the structure of a squeegee used in the above conventional floor cleaning machine. In the figure, SK
Is a case body to which the suction action of the blower is exerted, Ra and Rb are front and rear rubber plates mounted inside the front and rear parts of the case body SK with a space therebetween, T ... Tile, M is a tile T of each of these. The joints of ... are shown.

[0004]

In the squeegee constructed as described above, when the floor surface to be cleaned is the tile T having the joint portion M as shown in the drawing, the rubber plates Ra and Rb hang on the joint portion M. As a result, the excess air is sucked in from the joint portion M, which reduces the suction wind speed.
There was a problem that the sewage collected in the room could not be sucked.

Further, in the squeegee constructed as described above, since the two front and rear rubber plates Ra and Rb having a relatively thick wall scrape off the dirty water from the floor surface, the floor surface to be cleaned is as shown in FIG. In the case of an uneven surface such as the tile T having the joint M, the rubber plates Ra and Rb cannot sufficiently follow the uneven surface, and as a result, the rubber plates Ra and Rb and the floor surface are separated from each other. There is a problem in that a gap is created in the surface and dirty water that cannot be completely sucked remains on the cleaning surface, or streaky cleaning marks due to dirty water remain on the cleaning surface.

Therefore, the technical problem of the present invention is that even if the floor surface to be cleaned is a surface having a large number of irregularities such as a tile surface, the cleaning squeegee is sucked up by the squeegee to contaminate the irregularities. It is to do it cleanly without leaving.

[0007]

[Means for Solving the Problems] Means taken in the present invention for solving the above technical problems are as follows.

In a floor cleaning machine configured to connect a squeegee having a suction effect of a blower to a machine equipped with a rotating brush, and to collect and collect dirty water after cleaning with the rotating brush by the squeegee,

(1) A small suction port is opened downward on the inner bottom of the case body where the suction action of the blower is exerted on the squeegee suction face of the squeegee, and the suction action is exerted on this suction port. A plurality of divided squeegees, each of which is formed into a substantially tubular shape, are arranged side by side.

(2) A large number of divided squeegee bodies arranged in parallel on the inner bottom of the case body are connected to each other by a flexible film body so that each of them operates independently.

(3) The divided squeegee bodies are formed in a tubular structure having a quadrangular cross-section, and these divided squeegee bodies are arranged side by side so that one corner is oriented in the advancing direction of the squeegee. Make a notch in the bottom contact surface on the first half side so that there is a gap between it and the floor surface.

(4) Along with the left and right side edges of the film body in which a large number of divided squeegees are connected, a fitting edge for fitting in the holding portions provided on the left and right side edges of the case body is connected, and this film body is connected. A large number of deformation prevention pins, whose upper ends are in contact with the ceiling surface of the case body, are provided on the upper surface of the.

(5) A large number of divided squeegees and a membrane for connecting the divided squeegees are integrally formed by using rubber or a synthetic resin material.

Each means described in the above (1) to (5) operates as follows.

According to the means described in the above (1), even if the floor surface to be cleaned is a surface having irregularities such as a tile surface having joints, it is arranged in parallel according to the movement of the squeegee. While the divided squeegee body sucks dirty water collected on the tile surface (convex surface) and drops this dirty water to the joint (concave surface), the small suction port of each divided squeegee joints the collected dirty water to the joint. As soon as it hits the edge of the part, it is possible to raise the wind speed and suck up intensively with a strong suction force, so it is possible to surely suck up dirty water from the entire tile surface including joints, Even if there are some irregularities on the cleaning surface, it will be possible to cleanly absorb the dirty water without leaving it.

According to the means described in (2) above, since the divided squeegee bodies are connected by the flexible film body (for example, thin rubber or the like), they can independently move up and down. Because it is possible, even if there is some unevenness on the floor to be washed,
Each divided squeegee works to follow the unevenness, and makes it possible to absorb the dirty water cleanly.

According to the means described in the above (3), since the divided squeegee bodies formed in the cylindrical shape having the quadrangular cross section are arranged side by side so that one of the corners thereof faces the traveling direction of the squeegee, In addition to being able to move smoothly with relatively little resistance, each split squeegee body has a step on the bottom surface and scrapes sewage in the latter half of it, so sewage on the tile surface (convex surface) and joints It makes it possible to suck the dirty water in the (concave surface) very reliably.

According to the means described in the above (4), since the film body in which a large number of divided squeegee bodies are connected is fitted in the case body, the various divided squeegee bodies can be exchanged and maintained. Work can be done easily,
Deformation prevention pins protruding from the upper surface of the film body prevent the film body from deforming and hold each divided squeegee body in a stable state, so it is possible to more reliably absorb the dirty water by each divided squeegee body. To

According to the means described in (5) above, since a large number of divided squeegee bodies and film bodies are integrally molded, a squeegee having a complicated structure can be manufactured at a relatively low cost, and a squeegee of the same quality can be manufactured. Allows mass production.

As described above, the above (1) to
The technical problem described above can be solved by the means described in (5), and the problem of the conventional technology can be solved.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a squeegee for a floor washer according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view illustrating an internal structure of a floor cleaning machine in which a squeegee according to the present invention is implemented.
In the figure, 1 is a body of a washing machine, 1a is a steering wheel for operation,
1b and 1c are a driving wheel and a front wheel, 2 is a rotating brush which rotates by a motor 2M to wash the floor, and 3 and 4 are tanks for cleaning liquid or detergent liquid CW and tanks for sewage DW mounted in the body 1. Numeral 5 denotes a liquid supply pipe for supplying a clear liquid or a detergent liquid CW taken in from the inlet 5a by the action of the pump 5T to the rotary brush 2.

A squeegee generally designated by reference numeral 6 is a squeegee according to the present invention. The squeegee 6 connected to the rear portion of the machine body 1 has a blower which acts through a suction pipe 10 into the waste water tank 4. The suction force of 10T is the tip opening 9a.
It is configured so that the sewage remaining on the floor surface due to the washing and rotation of the rotating brush 2 by this suction force is further collected through the vacuum hose 9 into the sewage tank 4 by the vacuum hose 9. At the upper end of the suction pipe 10 described above, a suction port 10 with a float valve is provided.
a is provided.

Further, in the figure, 7 is a connecting plate for connecting the squeegee 6 to the rear portion of the machine body 1, and 6a is a case body which constitutes the squeegee 6, and a vent hole 8 is provided at the center of the upper surface of the case body 6a.
The lower end port of the vacuum hose 9 is connected to
The structure is such that the suction force of the blower 10T is exerted on the inside of the case body 6a.

2 is a bottom view of one half of one side of the squeegee 6 which is actually formed to be slightly longer than the lateral width of the machine body 1 as seen from the bottom side, and FIG. 3 is taken along line XX of FIG. 6a1 and 6a in the drawings.
a1 is a front and rear sandwiching portion formed by bending the front and rear side edges of the case body 6a bent downward, respectively, 6Y ... Is a divided squeegee body formed in a tubular shape having a rectangular cross section, and 6X ... and 6Z.
Is a cylinder-shaped divided squeegee body having a triangular cross section, and 6H is a large number of divided squeegee bodies 6Y ..., 6X.
, 6Z ... are connected in a state in which they are arranged side by side so as to operate independently, and a thin rubber material, for example, is used as this film body.

Each of the divided squeegee bodies 6Y having a quadrangular cross section connected by the film body 6H has one corner in the traveling direction of the squeegee 6 (the direction of the arrow indicated by the symbol F), as shown in FIG. The divided squeegee bodies 6X ... And 6Z ..
Similarly, as shown in FIG. 2, the divided squeegee bodies 6Y each having the quadrangular cross section are arranged on both sides of the divided squeegee bodies 6Y so as to sandwich the front and rear sides of the divided squeegee bodies 6Y.
The X, 6Y, and 6Z are configured to move on the cleaning surface without fail.

Reference numerals 6Ha and 6Ha are fitting edges having a thick structure integrally formed on both front and rear edges of the film body 6H, and the film body 6 in which the divided squeegee bodies 6X ..., 6Y ..., 6Z ... Are connected as described above.
H is a holding portion 6a1 and 6a1 in which the fitting edges 6Ha and 6Ha are formed in front of and behind the case body 6a as shown in FIG.
By fitting inside, the divided squeegee bodies 6X ..., 6Y ..., 6Z ... Are mounted inside the case body 6a in a state of being aligned as shown in FIG. 2, and the fitting edges 6Ha, 6Ha have elasticity. It is constructed so that it can be freely removed from the holding parts 6a1, 6a1.

Further, each of the above-mentioned divided squeegee bodies 6X, 6
Y and 6Z have their upper end openings 6Xb, 6Yb and 6Zb,
Both of them open toward the inner ceiling surface of the case body 6a,
From the vacuum hose 9 through the vent 8 to the case body 6a
The suction force of the blower 10T acting inside is passed through the inside of each divided squeegee body 6X, 6Y, 6Z, and its lower end opening 6X.
a, 6Ya, and 6Za are designed to affect,
The lower end opening 6Ya of each divided squeegee body 6Y formed in the central section quadrangular so that the latter half of the squeegee 6 can scrape the dirty water on the floor when the squeegee 6 moves forward in the direction of the arrow F. As shown in FIGS. 3 to 5, each front half portion is cut out to form a gap (a step of about 0.5 to 1 mm) with the floor surface.

The lower end opening 6 of the divided squeegee bodies 6Y ...
The gap formed by notching in Ya is the divided squeegee body 6Y.
Is shown in the diagram on the right side of FIG. 5, that is, the entire lower end opening 6Ya is completely located on the upper surface of the tile T and becomes a substantially sealed state, and even when the suction wind speed is significantly reduced, the dirty water on the tile T surface is removed. This is to allow even a small amount of suction, and the residual sewage that cannot be sucked in through this gap is
As the squeegee 6 advances in the direction of the arrow F, the squeegee 6 is pushed by the front edge of the divided squeegee bodies 6Y ... And dropped into the joint M.

Further, the divided squeegee body 6 having the above-mentioned rectangular cross section.
Each divided squeegee body 6 having a triangular cross-section on the front side installed in parallel with Y
As shown in FIG. 3 and FIG. 5, X has a notch in the front edge side of the lower end opening 6Xa to open a gap so that the dirty water on the tile T surface can be sucked in, and further, a division of a triangular section on the rear side. The squeegee body 6Z has a lower end opening 6Z as shown in FIG.
It has a structure in which a tongue piece for pulling sewage (kappa) to the rear edge of a is projected.

Further, in the figure, 6R ... Represents a large number of deformation preventing pins projecting on the upper surface portion of the film body 6H where the divided squeegee bodies 6X, 6Y, 6Z are not formed. The upper end of the film body 6 contacts the ceiling surface of the case body 6a.
Prevents deformation of H, and separates each squeegee body 6X, 6Y, 6Z
It is designed to hold the machine in a stable state.

In the drawing on the right side in FIG. 5, the split squeegee body 6Y at the center completely rides on the upper surface of the tile T and sucks the dirty water DW with a weak suction force, while the split squeegee body 6 at the front and rear sides.
A part of X and 6Z shows the state that a strong suction force is exerted on the joint M, and the left figure shows that a part of the central divided squeegee body 6Y is strong on the joint M. While the suction force is exerted, the front and rear split squeegee bodies 6X, 6Z are on the upper surface of the tiles T ... And the dirty water DW is sucked with a weak suction force.

In the squeegee 6 constructed as described above, all the divided squeegee bodies 6X, 6Y, 6Z, the film body 6H, and the deformation preventing pins 6R ... Are integrally formed by using rubber or a synthetic resin material. However, the molding method is arbitrary.

In FIG. 1, reference numeral 11 denotes a cover body attached to the rear portion of the case body 6a with screws 12, and 14 denotes a squeegee 6 rotatably attached to the inside of the cover body 11 using an axle 14a. The guide wheel is shown.

Since the squeegee for a floor cleaning machine according to the present invention has the above-described structure, the squeegee 6 cleans the dirty water DW after cleaning with the rotating brush 2 from the floor surface including the tiles T and the like as the machine body 1 moves. The squeegee 6 can be sucked up and collected in the dirty water tank 4, but in the present invention, in particular, a large number of divided squeegee bodies 6 each having an independent suction surface side of the squeegee 6.
Since the divided squeegee bodies 6X, 6Y, 6Z are connected by the flexible film body 6H, the tile T having the joint portion M is formed. Even in the case of a floor with unevenness such as, each divided squeegee body 6X, 6
Y and 6Z are moved up and down by following these uneven surfaces,
It can absorb the dirty water DW cleanly.

Further, in the present invention, the divided squeegee bodies 6Y having a quadrangular cross section are arranged side by side so that one corner thereof faces in the traveling direction F of the squeegee 6, and even if there is a step at the lower end opening 6Ya. In addition, since the sewage DW is collected in the latter half part, the sewage DW on the floor surface can be effectively absorbed with a relatively small resistance and is collected in the joint M of each tile T. For sewage, each split squeegee body 6X, 6
As soon as a part of the lower end ports 6Xa, 6Ya, 6Za of Y, 6Z hits the joint portion M, the suction wind speed is increased and a powerful suction force is concentratedly applied to the joint portion M. The collected dirty water DW can be surely sucked and collected in the tank 4.

[0037]

Since the squeegee for a floor cleaning machine according to the present invention is as described above, even if the cleaning surface has a large number of irregularities, a large number of divided squeegees operate independently up and down. Since it can cleanly absorb all of the dirty water collected in the concave part, streak-like dirty water marks can be left by one-time cleaning even on a wash surface with a large number of irregularities such as tile surfaces with joints. It is capable of reliably absorbing sewage without having to reciprocate the floor washer to remove traces of sewage, and can be used as a dust cloth, and the whole is integrally molded. Combined with the fact that the manufacturing cost can be reduced, it is suitable for use in various floor cleaning machines.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating an internal structure of a floor surface cleaning machine using a squeegee according to the present invention.

FIG. 2 is a bottom view showing one side half of the squeegee according to the present invention.

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is a bottom perspective view showing the shape of a divided squeegee body.

FIG. 5 is a cross-sectional view explaining a suction state of dirty water by the squeegee according to the present invention.

FIG. 6 is a sectional view of a conventional squeegee.

[Explanation of symbols]

 1 Body of floor cleaning machine 2 Rotating brush 6 Squeegee 6a Case body 6a1 Holding part 6X, 6Y, 6Z Divided squeegee body 6Xa Lower end opening with steps 6H Membrane body 6Ha Fitting edge 6R Deformation pin T tile M Joint area 10T blower

Claims (5)

[Claims] 1. A floor cleaning machine configured to connect a squeegee having a suction effect of a blower to a machine body equipped with a rotating brush, and to collect and collect dirty water after cleaning with the rotating brush by the squeegee. The squeegee squeegee suction surface is opened at the inner bottom of the case body where the suction action of the blower is exerted, and a small suction port is opened downward, and the suction action is exerted on the suction port. A squeegee for a floor washer, comprising a plurality of divided squeegees formed in a mold and arranged side by side. 2. A plurality of split squeegee bodies arranged in parallel on the inner bottom of the case body are connected to each other by a flexible film body so that each of them operates independently. Squeegee for the floor cleaning machine described. 3. The divided squeegee body is formed in a tubular structure having a quadrangular cross section, and these divided squeegee bodies are arranged side by side so that one corner is directed in the traveling direction of the squeegee, and the front half of each divided squeegee body. The bottom contact surface on the side is notched so as to have a gap with the floor surface.
Or the squeegee for the floor cleaning machine according to 2. 4. A fitting edge for fitting by being fitted in a holding portion provided on both left and right edges of the case body is connected to both left and right edges of the membrane body in which a large number of divided squeegee bodies are connected, and at the same time, The squeegee for a floor cleaning machine according to claim 2, wherein a plurality of deformation preventing pins, each of which has an upper end abutting against a ceiling surface of the case body, are provided on the upper surface. 5. A plurality of split squeegee bodies and a film body for connecting these split squeegee bodies are integrally molded using a rubber or a synthetic resin material. Squeegee for floor washer.