JPH09206264A - Squeegee for floor surface cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent waste from being caught between a rear side flexible blade and a floor face by applying an absorption force between a front- and the rear-side flexible blades so as to absorb sewage produced after cleaning by a rotary brush and vertically projecting a lot of linear projections inside the rear side blade. SOLUTION: A floor surface cleaner is provided with a squeegee 6 which is coupled with the rear part of a device 1 for absorbing and recovering sewage left on a floor surface into a sewage tank 4 by absorption force of a blower 10T. The squeegee 6 is provided with two front/rear flexible blades 6b, 6c arranged in a case body 6a and a supporter 6R for fixing the flexible blades 6b, 6c. A lot of linear projections 6T... made of synthetic resin superior in abrasion resistance, for example nylon, are vertically formed into a thick linear state in the inside face 6S of the rear-side flexible blade 6c is such a state as laterally spaced at appropriate intervals and stuck is parallel to each other in the inside face 6S of the rear-side flexible blade 6c.

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 a squeegee that absorbs sewage remaining on the floor after being washed and collects it in a sewage tank.

[0002]

2. Description of the Related Art Conventional squeegees for general floor cleaning machines are disclosed, for example, in Japanese Utility Model Publication Nos. 6-38848 and 6-794.
No. 54, or No. 6-58853, etc., two front and rear flexible blades are mounted in parallel at a distance, and a blower is provided between these two flexible blades. The flexible blade is configured to suck the dirty water collected by the flexible blade from the floor surface.

On the other hand, for example, Japanese Patent Laid-Open No. 2-1701
The squeegee described in Japanese Patent Publication No. 9 has a large number of corrugated portions (groove portions) on the front surface of the flexible blade on the front side (with respect to the traveling direction) of the front and rear flexible blades. By providing the squeegee, the squeegee is configured so that the dirty water on the floor surface can be more easily received between the front and rear flexible blades through the corrugated portions.

FIG. 5 illustrates the structure of the above conventional squeegee for a floor cleaning machine, in which A is a case body.
B and C are two front and rear flexible blades mounted inside the case body A with a space therebetween, R is a supporter for holding these two flexible blades B and C, and BT is a front side side. The groove-shaped corrugated portion formed on the front surface of the flexible blade B exerts the suction action of the blower through the vacuum hose between the front and rear flexible blades B and C, thereby sucking the collected dirty water from the floor surface F. It is designed to collect.

[0005]

In the squeegee constructed as described above, the rear flexible blade C whose inner surface is formed flat is pressed against the floor surface F by pressing its lower end portion to the floor surface F. Although it has a function of scraping up the upper sewage, when dust DS such as lint is caught between the lower end portion and the floor surface F, the floor surface F is trapped by the caught dust DS.
There is a problem that a gap is generated between the rear flexible blade C and the rear side flexible blade C, and as a result, the sewage leaks rearward from this gap and leaves a thread-like sewage trace on the floor surface F.

Usually, most of the air flow in the squeegee by the suction action of the blower passes through the corrugated portion BT of the front side flexible blade B with respect to the advancing direction along with the waste water of both flexible blades B and C. It is sucked in between, and is also sucked between the flexible blades B and C from a gap such as a lateral portion of the squeegee, and the waste water and the dust DS that are finally scraped are entrained and sucked to the waste water tank side. The dust DS trapped between the rear side flexible blade C and the floor surface F as described above cannot be sucked and collected by such a flow of air. After all, Crashed D
In the case of removing S, the operation of the floor cleaning machine must be temporarily stopped and manually removed, so that there is a problem that the work is very troublesome and affects the cleaning operation.

Therefore, the technical problem to be solved by the present invention is to prevent dust from being caught between the flexible blade on the rear side of the squeegee and the floor surface while the floor cleaning machine is in operation, and to prevent it from being caught. Even if it is inserted, it should be able to be easily removed by the suction force of the blower.

[0008]

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

(1) A suction force of a blower is exerted between two flexible blades on the front side and the rear side, which are arranged side by side at a distance, so that the dirty water after cleaning with a rotating brush is cleaned on the floor surface. A squeegee for a floor washer configured to suck up more, on the inner surface of the rear side flexible blade, a plurality of linear projections vertically with a suitable spacing in the horizontal direction. To project.

(2) Each of the linear protrusions protruding from the inner surface of the rear side flexible blade is made of a wear-resistant synthetic resin, and the linear protrusions are rear side flexible. To be integrally molded on the inner surface of the blade.

(3) The height dimension of each linear protrusion protruding from the inner surface of the rear flexible blade is
Configure within the range of 0.2 mm to 0.7 mm.

According to each of the above-mentioned means (1) to (3), the flexible blade and the floor surface are formed by the large number of linear projections formed on the inner surface of the rear flexible blade. Since a small gap (0.2 mm to 0.7 mm) is formed between the gaps, air is sucked from this gap and a bubble of dirty water is generated inside the contact portion between the rear flexible blade and the floor surface. As a blocking effect is exhibited, it becomes difficult for dust such as hair to be caught in the contact part, and even if it is caught, it is easily washed away by the air sucked from the above gap, so that dust is caught. It is possible to prevent the leakage of sewage caused by the above, and to solve the problem that a thread-like sewage mark remains on the floor surface after cleaning.

Further, in the conventional squeegee, a large amount of air is sucked from the opening at the side end, whereas in the above means, it is formed between the rear flexible blade and the floor surface. Since air is sucked through a small gap, the suction force does not drop, and this suction force is evenly distributed over the entire length of the rear side flexible blade in the longitudinal direction. The dust is not caught in any part of the flexible blade, and it is possible to smoothly suck the dirty water.

As described above, the above (1) to (1)
The technical problem described above can be solved by the means described in (3), and the problem of the conventional technology can be solved.

[0015]

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 the 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 the 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 constituting the squeegee 6 in the sectional views shown in FIGS. Reference numerals 6b and 6c denote front and rear two flexible blades arranged side by side in the front and rear inside the case body 6a, and 6R is a supporter for fixing the flexible blades 6b and 6c. A lower end port of the vacuum hose 9 is connected to a ventilation port 8 projecting at the center of the upper surface of the body 6a, and the suction force of the blower 10T is passed through the inside of the case body 6a between the front and rear flexible blades 6b and 6c. It has a mechanism to exert.

In FIG. 1, reference numeral 11 denotes a wheel cover attached to the rear portion of the case body 6a by a screw 12, and a guide wheel 14 is rotatably attached to the cover 11 by an axle 14a.

FIG. 2 is a perspective view showing a part of the rear side flexible blade 6c constituting the squeegee 6 according to the present invention, and FIG. 3 is a sectional view thereof. In the drawings, etc., 6T ... is a rear side flexible blade 6c
A plurality of linear projections vertically formed on the inner side surface 6S of the projection 6T at appropriate intervals in the lateral direction, and the height dimension H of each of these projections 6T from the inner side surface 6S. Is 0.2 m
Within a range of m to 0.7 mm, preferably 0.2 mm to
It is formed to 0.5 mm.

Each of the linear projections 6T is formed in a thick linear shape by using a synthetic resin material having excellent wear resistance such as nylon, and generally, the linear projections 6T are formed. The portions 6T are arranged in parallel with the inner surface 6S of the rear side flexible blade 6c made of rubber as shown in FIG.
Alternatively, the squeegee 6 according to the present invention is configured by fitting and adhering these linear protrusions 6T ... In a fitting groove (not shown) formed in a large number on the inner surface 6S. The same squeegee 6 can be configured by integrally molding the portions 6T on the inner surface 6S of the rear flexible blade 6c, and the molding method is arbitrary.

Since the floor cleaning machine squeegee according to the present invention has the structure as described above, when sucking dirty water shown in FIG. Rear flexible blade 6c that bends to the right)
The presence of the linear protrusions 6T ...
Since a slight gap of X dimension shown in FIG. 4 is generated between the flexible blades 6b and 6c, air is sucked from the slight gap of X dimension by the suction action of the blower 10T.
Between the rear flexible blade 6
A bubble of sewage is generated in the inner portion of the lower end of c, so that dust is unlikely to be caught between the lower end of the rear flexible blade 6c and the floor surface F.

Further, even if dust is caught, the air (outside air) sucked in through the slight gap of the above X dimension.
The dust is easily and naturally sucked into the space between the front and rear flexible blades 6b and 6c due to the suction action of the bubbles and the sliding action of the generated bubbles. It is not necessary to stop the operation of the floor washer to remove dust, and it is also possible to solve the problem that filthy water leaks from the gap between the bitten dust and leaves a thread-like filthy water trace on the floor. it can.

[0024]

As described above, according to the squeegee for a floor cleaning machine of the present invention, dust does not get caught between the rear flexible blade and the floor surface during the cleaning operation, and Even if you bite it, you can naturally remove it by suction force of the blower and collect it by suction, so you do not have to stop the cleaning operation to remove dust, and you can efficiently clean the floor surface. It is suitable for cleaning when cleaning a floor surface with a lot of dust.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing a part of a rear flexible blade that constitutes a squeegee according to the present invention.

FIG. 3 is a cross-sectional view of a rear side flexible blade which constitutes a squeegee according to the present invention.

FIG. 4 is a cross-sectional view illustrating a configuration of a main part of a squeegee according to the present invention.

FIG. 5 is a cross-sectional view of a conventional squeegee.

[Explanation of symbols]

 1 Body of floor cleaning machine 2 Rotating brush 6 Squeegee 6b Front side flexible blade 6c Rear side flexible blade 6S Inner side surface 6T Linear protrusion 10T Blower F Floor surface

Claims (3)

[Claims] 1. By applying suction force of a blower between two flexible blades on the front side and the rear side, which are arranged side by side with a gap, the dirty water after cleaning with a rotary brush is removed from the floor surface. A squeegee for a floor washer configured to suck up, wherein a large number of linear protrusions are vertically projected on the inner surface of the rear flexible blade with a proper interval in the lateral direction. A squeegee for a floor washer characterized by being installed. 2. The linear protrusions projecting from the inner surface of the rear flexible blade are made of wear-resistant synthetic resin, and the linear protrusions are formed on the rear flexible blade. The squeegee for a floor cleaning machine according to claim 1, wherein the squeegee is integrally formed on the inner surface of the squeegee. 3. The height dimension of each linear protrusion projecting from the inner surface of the rear flexible blade is 0.2 m.
The squeegee for a floor cleaning machine according to claim 1 or 2, wherein the squeegee has a thickness of m to 0.7 mm.