JPH09192069A - Floor surface washing wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor surface washing wheel which allows suction of relatively large dusts such as cotton dust with a suction device before the sucking of fouled water after washing by a squeegee. SOLUTION: A brush 3 for washing floor surfaces is supported in front of a machine base 1a while a squeegee 5 connected to a suction pipe 5a is mounted behind it and a washing water tank 13, a recovery tank 14 and the like are placed on the machine base. Washing water in the washing water tank 13 is scattered on a floor surface to wash it with a brush 3 for washing floor surfaces and the fouled water after the washing is sucked with the squeegee 5 and with a suction pipe 5a by a suction motor to be recovered into the recovery tank 14. A suction device 6 with a suction port is provided in front of the brush 3 for washing floor surfaces, a connection pipe one end of which is connected to the suction port and the other end thereof to the recovery tank 14 is provided at an upper part of the machine base 1a and a shutoff valve 11 is provided at the other end of the connection pipe. The shutoff valve 11 is opened to recover dust sucked from the suction device 6 into the recovery tank 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor cleaning vehicle,
More specifically, in front of the brush for cleaning the floor surface, a suction tool provided with a connection pipe connected to a recovery tank for collecting dirty water is provided, and with this suction tool, relatively large dust such as cotton dust (cotton dust) is provided. It is related to the structure that can suck in.

[0002]

2. Description of the Related Art In a conventional floor cleaning vehicle, for example, as shown in FIG. 3, a floor cleaning brush 3 is supported in front of a machine base 1a having drive wheels 2a and driven wheels 2b, and suction is carried out rearward. A squeegee 5 connected to a pipe 5a is attached, and a battery 4, a wash water tank (not shown) and a recovery tank are mounted on the machine base 1a.
14 etc. are placed, the cleaning water in the cleaning water tank is sprayed on the floor surface and cleaned by the floor surface cleaning brush 3, and the squeegee is cleaned by the suction motor (not shown) to clean the dirty water. 5 and the suction pipe 5a, and the recovery tank 14
It was a structure that was collected inside.

With the above construction, when there is relatively large dust such as cotton dust on the floor surface during normal traveling in which the main body 1 is operated to wash the floor surface, the dust is generated. There is a problem in that the squeegee 5 is caught in a clogged state, which reduces the work efficiency of sucking and collecting the dirty water and the dust by the squeegee 5.

[0004]

In the present invention, in view of the above-mentioned problems, a floor adapted to suck a relatively large dust such as cotton dust by a suction tool before sucking dirty water after washing with a squeegee. The purpose is to provide a surface cleaning car.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and supports a floor surface cleaning brush in front of a machine base provided with drive wheels and driven wheels, and rearward. Attach a squeegee to which a suction pipe is connected, place a wash water tank, a recovery tank, etc. on the machine base, spray the wash water in the wash water tank onto the floor surface, and wash with the floor surface cleaning brush. In the one in which the squeegee and the suction pipe suck the dirty water after the cleaning by the suction motor and collect the waste water in the recovery tank, a suction tool having a suction port in front of the floor cleaning brush is used. Provided on the upper part of the machine base is a connection pipe having one end connected to the suction port and the other end connected to the recovery tank, an opening / closing valve is provided at the other end of the connection pipe, and the opening / closing valve is opened. Dust sucked from the suction tool It has a configuration which is adapted to recover to the recovery tank.

Further, on the machine stand, there is provided a storage portion having a first suction port and a first discharge port and having air permeability and for storing dust. The first suction port is connected and the other is connected to the first discharge port.

Further, the suction tool is formed to have a width dimension substantially the same as the width dimension of the machine base.

Further, a suction brush is provided so as to project from the lower rear and / or the front of the suction tool, and the suction brush at the rear is made higher than the front.

Further, the suction motor and the connecting pipe are used together to suck dust. The suction motor sucks the sewage with the squeegee and the suction pipe during normal traveling for cleaning the floor surface, and when changing the direction of the machine frame from the normal traveling, the suction tool and The connection pipe is configured to suck in dust.

The opening / closing valve has a valve case having a second suction port connected to the other end of the connection pipe and a second discharge port connected to the dirty water tank, and a plate for opening / closing the second discharge port. -Shaped valve, a valve push rod erected on the valve, an urging means for urging the valve push rod and the valve toward the second discharge port, and the first means against the urging means. (2) The opening means for opening the discharge port.

Further, the biasing means comprises a compression spring,
The compression spring is attached to the valve push rod, one end of which is in contact with the valve and the other end is in contact with the valve case.

Further, the opening means is composed of a solenoid, and the solenoid is simultaneously activated when the direction of the machine base is changed from the normal traveling.

Further, the accommodating section has a paper pack which is breathable and has a backing sheet for accommodating dust, and an accommodating section for opening the upper part for accommodating the paper pack, and a hinge section for opening and closing the upper section. Storage case having a lid body for holding, a holding plate provided in the storage case and provided upright in the storage section with a through hole facing the first suction port, and the mount abutting the holding plate And a holding part made up of a holding lever that holds the
It is composed of.

[0014]

According to the above construction, a relatively large dust such as cotton dust is sucked by the suction tool before the squeegee of the dirty water after washing is sucked, and the dust is caught on the squeegee to prevent clogging. It will be a floor cleaning car that can be prevented from waking up.

[0015]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In the description of the present embodiment, the dust sucked from the suction tool to be described later is stored on the machine base to be described later between the suction tool and the open / close valve, which will be described later, corresponding to claims 1 and 2. A more effective and easy-to-use embodiment will be mainly described on the basis of a configuration in which a storage portion for carrying out is placed.

1A and 1B, and FIG.
(A) to FIG. 2 (D), 1 is a floor washing car main body, 1a is a machine frame that composes the main body 1, 2a is a drive wheel for automatic traveling provided on the machine base 1a, and 2b is the machine frame The driven wheels 3 for automatic traveling provided in the la 1a are floor surface cleaning brushes supported at the lower front portion of the machine base 1a. 4 is placed on the machine base 1a,
It is a battery for driving a suction motor (not shown) for sucking dirty water after cleaning by a squeegee described later.

Reference numeral 5 denotes a squeegee provided at a lower rear portion of the floor surface cleaning brush 3. The squeegee 5 sprays cleaning water stored in a cleaning water tank, which will be described later, in the main body 1 onto the floor surface, After cleaning with the floor cleaning brush 3, the waste water is collected in a recovery tank in the main body 1 which will be described later. Reference numeral 5a is a suction pipe connected to the squeegee 5, and the suction pipe 5a is configured to collect the waste water in a recovery tank in the main body 1 described later.

Reference numeral 6 is a suction tool supported by the machine base 1a in front of the floor cleaning brush 3, and before cleaning by the floor cleaning brush 3 by the suction tool 6, FIG.
The relatively large dust a such as cotton dust (cotton dust) on the floor surface can be sucked in, as shown in Fig. 4, whereby the dust a is caught by the squeegee 5 and is clogged. It has a structure that can prevent it from happening. Also, the suction tool 6
Is formed with a width dimension substantially the same as the width dimension of the machine base 1a, so that the dust a within the range of the width dimension through which the machine base 1a has traveled and passed can be completely absorbed. It has a structure that Also, the suction tool 6
Is used together with the suction motor to suck the dirty water after cleaning with the squeegee 5, and the suction motor sucks the dust a.

It should be noted that the suction motor sucks dirty water after washing with the squeegee 5 during the normal traveling in which the main body 1 is operated to wash the floor surface, and the suction motor cleans the machine base 1a from the normal traveling. When the direction is changed, the suction work by the squeegee 5 is stopped, and at the same time, the suction work of the dust a by the suction tool 6 is performed. A relatively large dust a such as cotton dust (cotton dust) hooked on the suction brush can be sucked in at a stretch, and the suction work of the dirty water and the suction work of the dust a are not performed at the same time. Therefore, the suction motor has an efficient structure so that an unreasonable load is not applied.

Reference numerals 6a and 6b denote suction brushes projecting from the front and rear of the lower portion of the suction tool 6, respectively.
And 6b have a structure in which the rear suction brush 6b is higher than the front suction brush 6a, whereby the main body 1 is operated to perform a floor cleaning operation. At this time, when there is relatively large dust a such as cotton dust on the floor surface, the dust a is transferred to the rear suction brush 6b as shown in a portion a in FIG. 2A. When running while hooked and when changing the direction of the machine base 1a from the normal running, as described above, the rear suction brush
The dust a hooked on the 6b can be sucked in at a stretch. Reference numeral 6c denotes a first connection pipe having one end connected to the suction tool 6, and the first connection pipe 6c allows the dust a sucked from the suction tool 6 to be guided and stored in a storage portion described later. It is composed.

As shown in FIG. 1 (A), 7 is a mounting member for mounting the suction tool 6 on the support shaft portion of the driven wheel 2b, and a screw inserted through an insertion hole formed in the mounting member 7. Thus, the suction tool 6 is configured to be screwed and fixed to the screw hole provided in the support shaft portion of the driven wheel 2b.

Reference numeral 8 denotes a storage unit placed on the machine base 1a,
The configuration in which the storage portion 8 is provided is a configuration corresponding to claim 1 and claim 2, and stores the dust a sucked by the suction tool 6 so that the dust a can be opened and closed as described later. The structure is designed so that it does not go to, so that the on-off valve is not clogged.

Reference numeral 8a denotes a storage case which constitutes the storage section 8. The storage case 8a connects a first suction port to which the other end of the first connection pipe 6c is connected and one end of a second connection pipe described later. The above-mentioned first discharge port is provided, the upper part is opened, and the accommodating part for accommodating a paper pack described later, and the upper part of the accommodating part are configured by a lid body having a hinge part 8g and openably and closably covered. With this structure, the lid can be opened and closed to accommodate a paper pack described later in a detachable manner.

Reference numeral 8b is a connection pipe for connecting the first connection pipe 6c to the storage case 8a. Reference numeral 8c denotes a mounting plate that constitutes the storage portion 8 and has a through hole facing the first suction port. By mounting a mount of a paper pack described later on the mounting plate 8c in a removable manner, Dust a
And a paper pack (described later) containing the same dust a can be replaced, and as described above,
The structure is such that the on-off valve described later can be prevented from being clogged.

Reference numeral 8d is a guide projecting from both sides of the mounting plate 8c. The guide 8d smoothly guides both sides of a mount of a paper pack, which will be described later, so that the paper pack can be easily attached and detached. ing. Since the guide 8d is formed integrally with the mounting plate 8c, the size and shape of the guide 8d can be accurately finished and the cost is advantageous.

Reference numeral 8e designates a pair of bearings provided substantially centrally in the upper portion of the mounting plate 8c. The bearings 8e enable the pivot shaft of a protection lever, which will be described later, to be rotatably supported to protect the same. By a lever, a mount of a paper pack, which will be described later, can be detachably held.

Reference numeral 8f is a second connection pipe having one end connected to the first outlet of the storage case 8a, and the other end of the second connection pipe 8f is connected to a valve case described later.

Reference numeral 9 is a protective lever having a support shaft 9a corresponding to the bearing portion 8e. By rotating the protective lever 9 as shown by an arrow b in FIG. It is configured so that the mount can be detachably held.

Reference numeral 10 denotes a breathable paper pack that is housed in the housing portion of the housing case 8a, and 10a is a mount provided in the paper pack 10.

Reference numeral 11 is an opening / closing valve provided at the other end of the second connecting pipe 8f. By opening the opening / closing valve 11, the dust a sucked from the suction tool 6 is stored in the storage portion 8. At the same time, the other end of the second connection pipe 8f is connected to a recovery tank described later so that a ventilation path can be formed. The opening / closing valve 11 is a valve case 11a having a second suction port to which the other end of the second connection pipe 8f is connected and a second discharge port connected to a recovery tank described later.
And a plate-shaped valve 11 that opens and closes the second discharge port of the valve case 11a.
b, the valve push rod 11c installed upright on the valve 11b, and the valve push rod
A compression spring (biasing means) 11d that is attached to 11c and has one end in contact with the valve 11b and the other end in contact with the valve case 11a.
And a solenoid (opening means) 12 for moving the valve 11b against the biasing force of the compression spring 11d to open the second discharge port of the valve case 11a.

With the above construction, the solenoid (opening means)
2 is operated to move the valve push rod 11c and the valve 11b to open the second discharge port of the valve case 11a as shown by an arrow c in FIG. An air passage is formed between the suction tank 6 and a recovery tank, which will be described later, so that the dust a sucked from the suction tool 6 can be stored in the paper pack 10 in the storage portion 8.

Numeral 13 is a wash water tank placed substantially in the center of the machine base 1a, and 14 are provided on both sides of the wash water tank 13 and have ventilation holes facing the second discharge port of the valve case 11a. 14
It is a recovery tank equipped with a. The wash water tank 13 and the recovery tank 14 are mounted on the machine base 1a in a well-balanced manner so as not to deflect the center of gravity of the main body 1, whereby the main body 1 is placed on the floor. The structure is such that the straight traveling property of the main body 1 is not impaired during normal traveling for cleaning the surface.

With the above structure, FIG. 1A and FIG.
(B) and FIGS. 2A to 2D,
When the main body 1 performs normal running for cleaning the floor surface,
Floor cleaning in which the cleaning water stored in the cleaning water tank 13 is sprinkled on the floor surface, cleaned by the floor surface cleaning brush 3, and the squeegee 5 collects the waste water in the recovery tank 14. When the vehicle becomes a vehicle and the direction of the machine base 1a is changed from the normal running, the suction work by the squeegee 5 is stopped, and at the same time, the suction work of the dust a by the suction tool 6 is performed. The dust a hooked on the rear suction brush 6b can be sucked at once, and the dust a is prevented from being caught by the squeegee 5 and clogged to reduce the workability of the floor cleaning. It becomes a washing car.

[0034]

As described above, according to the present invention, a relatively large dust such as cotton dust is sucked by the suction tool before the squeegee of the dirty water after washing is sucked. It becomes a floor cleaning car that can prevent it from being clogged and clogging.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a floor cleaning vehicle according to the present invention, in which (A) is a cross-sectional view and (B) is a plan view.

FIG. 2 is an explanatory view of a main part of a floor cleaning vehicle according to the present invention,
(A) is an enlarged view of (A) portion shown in FIG. 1 (A),
(B) is an enlarged view of the (B) part shown in FIG. 1 (A),
(C) is an enlarged view of the (C) part shown in FIG. 1 (A),
FIG. 2D is a view on arrow D shown in FIG.

FIG. 3 is a cross-sectional view of a conventional floor cleaning vehicle.

[Explanation of symbols]

 1 Floor cleaning car body 1a Machine base 2a Drive wheel 2b Driven wheel 3 Floor cleaning brush 4 Battery 5 Squeegee 5a Suction pipe 6 Suction tool 6a, 6b Suction brush 6c First connection pipe 7 Mounting member 8 Storage part 8a Storage Case 8b Connection pipe 8c Mounting plate 8d Guide 8e Bearing part 8f Second connection pipe 8g Hinge part 9 Holding lever 9a Spindle 10 Paper pack 10a Mount 11 Open / close valve 11a Valve case 11b Valve 11c Valve push rod 11d Compression spring 12 Solenoid (open) Means) 13 Wash water tank 14 Recovery tank 14a Ventilation hole a Dust

Claims (10)

[Claims] 1. A floor cleaning brush is supported in front of a machine base provided with driving wheels and driven wheels, and a squeegee connected to a suction pipe is mounted in the rear thereof, and a cleaning water tank, a recovery tank, etc. are mounted on the machine base. Is placed, and the cleaning water in the cleaning water tank is sprinkled on the floor surface to be cleaned with the floor surface cleaning brush,
The squeegee and the suction pipe suck the dirty water after the cleaning with the suction motor, and the waste water is collected in the recovery tank, and a suction tool having a suction port is provided in front of the floor cleaning brush. , A connection pipe having one end connected to the suction port and the other end connected to the recovery tank is provided at the upper part of the machine base, an opening / closing valve is provided at the other end of the connection pipe, and the opening / closing valve is opened to A floor cleaning vehicle characterized in that the dust sucked from the suction tool is collected in the collection tank. 2. A storage unit, which has a first suction port and a first discharge port and has air permeability and which stores dust, is provided on the machine base. The floor cleaning vehicle according to claim 1, wherein the floor cleaning vehicle is connected to a first suction port and the other is connected to the first discharge port. 3. The floor cleaning vehicle according to claim 1, wherein the suction tool is formed to have a width dimension substantially the same as the width dimension of the machine base. 4. The suction brush at the lower part of the suction tool is projected on the rear side and / or the front side, and the suction brush on the rear side is made higher than the front side. Floor cleaning car as described. 5. The floor according to claim 1, wherein the suction motor and the connection pipe are used together to suck dust by using the suction motor together. Face wash car. 6. The suction motor sucks the sewage with the squeegee and the suction pipe during normal traveling for cleaning the floor surface, and changes the direction of the machine base from the normal traveling, The floor cleaning vehicle according to claim 1 or 5, wherein dust is sucked by the suction tool and the connection pipe. 7. A valve case in which the opening / closing valve has a second suction port connected to the other end of the connection pipe and a second discharge port connected to the dirty water tank, and a plate for opening / closing the second discharge port. -Shaped valve, a valve push rod erected on the valve, an urging means for urging the valve push rod and the valve toward the second discharge port, and the first means against the urging means. 2. The floor cleaning vehicle according to claim 1, further comprising opening means for opening the two discharge ports. 8. The urging means comprises a compression spring, the compression spring is attached to the valve push rod, one end of which abuts against the valve, and the other end of which abuts against the valve case. The floor cleaning vehicle according to claim 7. 9. The method according to claim 6, wherein the opening means comprises a solenoid, and the solenoid is simultaneously activated when the direction of the machine base is changed from the normal traveling. Floor cleaning car. 10. The storage unit has a paper pack that is breathable and has a mount to store dust, and a storage unit that has an open top for storing the paper pack, and has a hinge to open and close the top. Storage case having a lid body for holding, a holding plate provided in the storage case and provided upright in the storage section with a through hole facing the first suction port, and the mount abutting the holding plate 3. The floor cleaning vehicle according to claim 2, further comprising: a holding portion formed of a holding lever that detachably holds the.