JPH07327896A - Floor cleaner - Google Patents

Abstract

PURPOSE:To enable a floor cleaner to avoid a slip of driving wheels for dirty water left on the floor by furnishing water leading boards which gather dirty water to the center of the floor cleaner as to clear the track of wheels. CONSTITUTION:An automatically driven floor cleaner is provided inside a pair of water leading boards 9 set obliquely to the front between brush units 5 of a platform car 1 and right and left driving wheels 2. The water leading boards 9 are formed of a sheet of bendable material 9a; a length of the water leading boards is longer than clearance between the bottom of platform car and the floor, the down ends of the boards are applied longitudinal rifts 10 and the top ends of the boards are fixed to metal fittings 11. The water leading boards 9 are attached to the platform car 1 with the metal fittings 11, in the way the bottoms of the boards are bended forward and the backs of the bended bottoms rub the floor, and are set obliquely with the fronts of the boards facing toward the lateral sides of the platform car 1, respectively and the rears of the boards facing toward the center thereof, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor cleaner, and more particularly to a sewage removing device for maintaining the straightness of a drive wheel that slips with sewage.

[0002]

2. Description of the Related Art A conventional floor cleaning machine will be described with reference to FIG. 5, 1 is a carriage, 2 is a drive wheel, 3 is a front driven wheel, 4 is a rear driven wheel, 5 is a brush unit (not shown) that has a motor and is a combination of two brushes, 6
Is a sewage tank in the water tank mounted on the trolley 1, and is connected to a vacuum pump (not shown), and 7 is a suction nozzle.
Connected to. When the floor cleaning machine is automatically driven by the drive wheels 2, the waste water tank 6 is placed in front of or inside the brush unit 5.
A cleaning liquid or fresh water is poured onto the floor surface from the fresh water tank (not shown) that is placed in parallel with the brush, and after cleaning and polishing with the brush, dust and residual water are removed from the suction nozzle 7 to a low pressure sewage tank 6 Is sucking into. However,
Since the rotating drive wheel 2 passes over the dirty water left on the floor surface after being cleaned and polished by the brush unit 5, the tire of the drive wheel 2 slips and causes a deviation in direction, so that the floor cleaning machine moves straight. I had a problem with.

[0003]

In order to solve the above problems, the present invention provides a guide plate to prevent the tires of the drive wheels from passing over the dirty water remaining on the floor. The purpose of the present invention is to provide a floor cleaning machine which collects in the center and removes it from the feeding path to improve suction efficiency.

[0004]

According to the present invention, a pair of drive wheels are provided at the center, and a fresh water tank, a waste water tank, a vacuum pump, etc. are mounted on a trolley having front and rear driven wheels, and the drive wheels are In a floor cleaner that automatically travels with a brush unit having a water supply nozzle between the front driven wheels and a suction nozzle attached to the rear end of the trolley, in a traveling direction between the brush unit and the left and right drive wheels. It is characterized in that an inverted V-shaped guide plate is provided. Further, the guide plate is made of a flexible material and has a longitudinal dimension larger than the height of the dolly and the floor surface, and the lower end of the guide plate is attached to the lower surface of the dolly in the traveling direction. thing. Alternatively, the guide plate may be mounted on the lower surface of the trolley by using a non-flexible material, connecting the material and the mounting bracket with a spring material. Further, the guide plate is attached to the lower surface of the truck by making a cut on the lower end side that slides on the floor surface.

[0005]

According to the present invention, a pair of guide plates are provided between the brush unit and the left and right drive wheels in the traveling direction in an inverted V shape, the lower end is oriented in the traveling direction, and the rear surface is slid on the floor surface. By doing so, it is possible to prevent the dirty water that has been swept from the brush unit and left on the floor surface to be collected in the lower central portion of the trolley, and to prevent the dirty water from remaining under the drive wheels. Moreover, by collecting the dirty water and dust in the central portion, the suction nozzle can be easily sucked and the suction nozzle can be made small.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, a brush unit 5 having a drive wheel 2 in the center of the lower surface of a truck 1, front driven wheels 3 and rear driven wheels 4 in the front and rear, and a motor between the drive wheels 2 and the front driven wheels 3 is provided. I am wearing it. Although not shown on the dolly 1, a clean water tank filled with cleaning liquid or clean water and a sealed waste water tank 6
Also, a vacuum pump (not shown) is mounted, and a suction nozzle 7 for sucking sewage and dust on the floor is installed at the rear of the trolley 1.
And is connected to the upper part of the rear side surface of the dirty water tank 6 through a suction pipe 8. A pair of guide plates 9 are installed between the brush unit 5 and the left and right drive wheels 2 in an inverted V-shape in the traveling direction.
Stick to the underside of. As shown in FIG. 2, the guide plate 9 is made of a flexible sheet-shaped material 9a whose vertical dimension is the carriage 1.
It is larger than the height of the floor surface, and has a vertical cut 10 at the bottom, and the upper end of the cut is fixed to the mounting bracket 11. The guide plate 9 using the inflexible material 9b is formed by fixing the upper end of the spring material 12 sandwiched between the divided materials 9b to the mounting member 10. As shown in FIG. 3, the guide plate 9 is attached to the lower surface of the trolley 1 via the mounting bracket 11, and the side surface of the trolley 1 is moved to the front so that the lower end portion is bent forward and the rear surface slides on the floor surface. The center side is attached to the back in an inverted C shape. Further, as shown in FIG. 4, the guide plate 9 having a vertical cut 10 in the lower part slides along the uneven floor surface by the cut 10 without any gap.

[0007]

Therefore, according to the present invention, a pair of guide plates are formed in an inverted V shape between the brush unit and the left and right drive wheels in the traveling direction, the lower end is directed in the traveling direction, and the rear surface slides on the floor surface. With such a configuration, it is possible to prevent the drive wheels from slipping due to dirty water and maintain straightness. Moreover, by collecting sewage and dust in the central portion, the suction efficiency is improved and the suction nozzle can be made smaller.

[Brief description of drawings]

FIG. 1A is a side view and FIG. 1B is a rear view of a floor cleaner equipped with a guide plate according to an embodiment of the present invention.

2A is a front view of a guide plate using a flexible material according to an embodiment of the present invention, FIG. 2B is a sectional view thereof, and FIG. 2C is a non-flexible material of another embodiment. It is sectional drawing of the guide plate connected by the used spring material.

FIG. 3A is a side view of a main part showing a mounted state of a guide plate using a flexible material according to an embodiment of the present invention, and FIG. 3B is a side view of a main part showing another embodiment. .

FIG. 4 is a front view showing the adaptability of the guide plate, in which the flexible material of the embodiment of the present invention is cut, to the floor surface.

FIG. 5 is a side view showing an outline of a conventional floor cleaning machine.

[Explanation of symbols]

 1 vehicle 2 driving wheel 4 rear driven wheel 5 brush unit 6 waste water tank 7 suction nozzle 8 suction pipe 9 guide plate 9a guide plate using flexible material 9b guide plate using inflexible material 10 cut 11 mounting bracket 12 spring Material

Claims (4)

[Claims] 1. A fresh water tank, a sewage tank, a vacuum pump, etc. are mounted on a trolley having a pair of drive wheels in the center and front and rear driven wheels, and a water supply nozzle is provided between the drive wheel and the front driven wheel. In a floor cleaning machine in which a suction unit is attached to the rear end of the trolley to automatically drive the brush unit having the above, a guide plate is provided between the brush unit and the left and right drive wheels in an inverted V shape in the traveling direction. A floor cleaning machine characterized by that. 2. The guide plate is made of a flexible material and has a longitudinal dimension larger than the height of the dolly and the floor surface, and a lower end of the guide plate is provided on a lower surface of the dolly in a traveling direction. The floor cleaning machine according to claim 1, wherein the floor cleaning machine is mounted face-to-face. 3. The floor cleaning machine according to claim 1, wherein the guide plate is mounted on the lower surface of the carriage by making a cut on the lower end side that slides on the floor surface. 4. The inductive plate is mounted on the lower surface of the carriage by using a non-flexible material, and connecting the material and a mounting bracket with a spring material. Floor cleaning machine.