JPH09215621A - Bathtub cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathtub cleaner to be used conveniently only for washing the bathtub by pressing a cleaning means for cleaning the inner wall of the bathtub under the condition of floating on the water surface against the inner wall of the bathtub by the suction force of water and constituting the cleaning means to be moved by a propelling means. SOLUTION: When a body 1 is floated in a bathtub 14 having residual warm water 13 and a switch 10 is turned on, a cleaning means 2 is sucked to the inner wall 16 of the bathtub 14 and the whole body 1 is pressed against the inner wall 16. Also, a brush 2a is rotated on the inner wall 16 by the rotation of a drive shaft 4a. Thus, the inner wall 16 is cleaned by the brush 2a and the body 1 is turned circumferentially in the present position of water surface while continuously cleaning the inner wall 16. When a drain plug for the bathtub 14 is withdrawn, the water level is gradually lowered so that the body 1 is moved downward as the water level is lowered and the subsequent turning- around is carried out along a path lower than that of the previous one. The cleaning is thus continued while sequentially changing the path to be completed when the residual warm water does not exist any more.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub cleaner for automatically cleaning the inner wall of a bathtub.

[0002]

2. Description of the Related Art Conventionally known automatic bath cleaning devices include an automatic bath cleaning device disclosed in Japanese Patent Laid-Open No. 4-269935 and a water tank cleaning device disclosed in Japanese Utility Model Laid-Open No. 6-55349. There is.

FIG. 16 shows the structure of the automatic bath cleaning apparatus disclosed in Japanese Patent Laid-Open No. 4-269935, in which the cleaning solution in the tank 102 is pumped by a pump 103 while the upper part of the bath 100 is covered with a lid 101. When the cleaning liquid is sprayed from the nozzle 104 and the cleaning liquid adheres to the inner wall of the bath 100, tap water is sprayed from the rinse water spray nozzle 105 to clean the inside of the bath 100. Also, FIG.
The configuration of the automatic bath cleaning apparatus of No. 6-55349 is shown. A guide rail 111 is provided on the upper part of the bath 110.
The brush 113 is installed on the guide rail 111.
Drive device 112 having a control device 114a, 114b
The brush 113 moves while rotating in response to the above signal.

[0004]

All of the above-mentioned conventional structures are facilities integrated with a bathtub or a water tank, which is rather inconvenient for the original purpose of bathing. There is.

SUMMARY OF THE INVENTION The present invention solves the problems of the conventional structure, and an object thereof is to provide a convenient bathtub cleaner that can be used only when cleaning a bathtub.

[0006]

The first means of the present invention for achieving the above-mentioned object is a cleaning means for cleaning the inner wall of the bathtub in a state of floating on the water surface, and this cleaning means by the suction force of water. As a bathtub cleaner having a suction means for pressing against the inner wall of the bathtub, a propulsion means for moving the cleaning means along the inner wall of the bathtub, and a power source for the cleaning means, the suction means and the propulsion means, the inner wall of the bathtub is automatically It should be cleaned.

The second means of the present invention is a bathtub cleaning machine in which at least the drive sources of the cleaning means and the suction means are constituted by the same motor, and the water is sucked from the central portion of the cleaning means. It's something you're trying to do.

A third means of the present invention is a bathtub cleaning machine in which a net for removing unwanted substances is detachably provided at the water inlet of the suction means, and removes scales and the like.

A fourth means of the present invention is a bathtub cleaning machine provided with a corner detecting means for detecting a corner of a bathtub and a direction changing means, so that the direction of the corner of the bathtub can be surely changed. It was done.

A fifth means of the present invention is provided with water detecting means for detecting the presence of water, continuing the operation while there is water, stopping the operation when there is no water, and notifying the end of cleaning. As a bathtub cleaner, the end of cleaning is automatically detected and notified.

A sixth means of the present invention is a bathtub cleaning machine having bottom surface detection means for detecting the bottom surface of the bathtub and stopping the operation at the time when the bottom surface of the bathtub is detected, and notifying the end of cleaning.
The end of cleaning is automatically detected and notified.

A seventh means of the present invention is a propulsion speed adjusting means for adjusting the speed of the motor, and a speed varying means for automatically adjusting the voltage applied to the motor according to the drainage speed of the bath and the voltage applied to the motor. As a bathtub cleaner equipped with, the voltage applied to the motor is automatically adjusted according to a predetermined program so that cleaning can always be performed at an optimum propulsion speed.

The eighth means of the present invention is an ultrasonic distance measuring means for measuring the distance to the bottom of the bath, and a speed varying means for adjusting the voltage applied to the motor according to the information of the ultrasonic distance measuring means. As a bathtub cleaner having the above, it is possible to always perform cleaning at an optimum propulsion speed according to a predetermined program based on water level information.

A ninth means of the present invention is a bathtub cleaning machine in which a power source is a secondary battery charged by an induction charging means, and the equipment can have a sealed structure and is highly reliable.

The tenth means of the present invention is a cleaning means for cleaning the inner wall of the bathtub while floating on the water surface, a plurality of magnet rollers for adsorbing the cleaning means to the inner wall of the bathtub, and along the inner wall of the bathtub. As a bathtub cleaner having a propulsion means for moving the cleaning means and a power source for the cleaning means and the propulsion means,
The inner wall of the bathtub can be stably cleaned.

The eleventh means of the present invention is an ultrasonic cleaning means for cleaning the inner wall of the bathtub while floating on the water surface, a plurality of magnet rollers for adsorbing the ultrasonic cleaning means to the inner wall of the bathtub, and the bathtub. As a bathtub cleaner having a propulsion means for moving the cleaning means along the inner wall of the bathtub and a power source for the cleaning means and the propulsion means, the inner wall of the bathtub is cleaned by ultrasonic cleaning.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) A first embodiment of the present invention will be described below. In FIG. 1, the body 1 of the bathtub cleaner (hereinafter simply referred to as the body 1) is designed to have a relationship between gravity and buoyancy so that the head can float above the water surface.

Inside the main body 1 having a closed structure, the main body 1
The impeller 3 for sucking water in the bathtub from the central portion of the cleaning means 2 attached to the motor 4, the motor 4 as a drive source for driving the impeller 3 via the gear 5, and the battery 6 as a power source of the motor 4 are housed. doing. The cleaning means 2 is composed of a housing 2b having a circular cross section, a rotary brush 2a formed by bristling the periphery of the housing 2b, and a motor 4. A water inlet 2c is formed in the center of the housing 2b and is directly connected to the impeller 3.
This constitutes a suction means for pressing the cleaning means 2 against the inner wall of the bathtub with the suction force of water. Also, the drive shaft 4a of the motor 4
Is the impeller 3 of the suction means and the housing 2 of the cleaning means 2.
It is connected to both b. Casing 7 for impeller 3
And an oil seal 8 between the drive shaft 4a and
The impeller 3 has a water intake port 2c and a suction port 7a of the housing 2b.
It has a watertight structure in which the water sucked in from the main body 1 does not leak.

In FIG. 2, the impeller 3 has a suction port 7a.
The water sucked from is blown out along the blowout portion 7b. The blow-out portion 7b has a shape in which the cross-sectional area is gradually reduced, and the blown-out water forms a jet water flow 12. The impeller 3, the blow-out portion 7b, the motor 4, etc. are provided in the main body 1, that is, the cleaning means 2. Constitutes a propulsion means for moving the tub along the inner wall of the bathtub. A switch 10 is provided on the upper part of the main body 1.

The operation of this embodiment will be described below.
When the main body 1 is floated on the bath 14 having the remaining hot water 13 and the switch 10 is turned on, the motor 4 starts rotating. The rotation of the motor 4 is converted into low speed and large torque by the gear 3 and transmitted to the drive shaft 4a. The impeller 3 connected to the drive shaft 4a and the cleaning means 2 rotate in the direction of arrow 17 in response to the rotation of the motor 4. The housing 2b of the cleaning means 2 directly connected to the impeller 3 by the rotation of the impeller 3.
The water inlet 2c absorbs the remaining hot water 13 as shown by an arrow a. Therefore, the cleaning means 2 is attracted to the inner wall 16 of the bathtub 14, and the entire main body 1 is also pressed against the inner wall 16 of the bathtub 14. In this state, the brush 2a constituting the cleaning means 2 is rotated on the inner wall 16 by the rotation of the drive shaft 4a. At this time, when the main body 1 is strongly pressed against the inner wall 16 by the water absorption of the impeller 3, the frictional force between the brush 2a and the inner wall 16 increases and the rotation speed of the drive shaft 4a decreases. When the rotation speed of the drive shaft 4a decreases, the pressing force of the impeller 3 weakens, and the rotation speed of the brush 2a increases again. Body 1
Drives the cleaning means 2 while maintaining this state balance. That is, the brush 2a rotates while applying a substantially constant pressing force to the inner wall 16.

The remaining hot water 13 sucked in by the impeller 3
Is jetted out as a jet water stream 12 by being squeezed by the blowout portion 7b of the casing 7. The main body 1 moves by the reaction force that blows out the jet water flow 12. At this time, the jet water stream 12 is set to blow out toward the rear of the main body 1 and slightly upward. Therefore, the main body 1 moves forward in a stable posture, avoiding the influence of the rotation of the brush 2a.

FIG. 3 illustrates the usage state of the bathtub cleaner. When the main body 1 is floated in the bathtub 14 having the remaining hot water 13 and the switch 10 is turned on, the main body 1 moves along the inner wall 16 in the direction of the arrow 19 and the brush 2a of the cleaning means 2 is moved.
To rotate. At this time, as described above, since the main body 1 is pressed against the inner wall 16 with an appropriate force, the brush 2a rotates while pressing the inner wall 16. That is, the inner wall 16 is cleaned by the brush 2a. The main body 1 orbits at the current water surface position while continuing to clean the inner wall 16 of the bathtub. Here, when the drain plug 20 on the bottom surface of the bathtub 14 is pulled out, the water level gradually decreases. The main body 1 floating on the water surface moves downward with the decrease in the water level, so that the next orbital movement follows the path indicated by the arrow 21 below the previous time. The cleaning is continued while sequentially changing the route, and the cleaning is finished when the remaining hot water 13 is exhausted. Therefore, if the distance between the path indicated by the arrow 19 and the path indicated by the arrow 21 is controlled to be equal to or smaller than the diameter of the brush 2a, the inner wall 16 can be cleaned without a gap.

As described above, in this embodiment, the main body 1 applies the brush 2a of the cleaning means 2 to the inner wall 1 of the bath 14 with an appropriate pressing force.
A compact and easy-to-use bathtub cleaner is realized, in which the bathtub 14 is rotated while being pressed while pressing 6 to move downward while cleaning the bathtub 14 while moving around the bathtub 14 in accordance with the decrease in the water level when the drain plug 20 is pulled out. To do.

Further, the cleaning means 2 and the impeller 3 are driven by the same motor 4, and the impeller 3 is housed in the housing 2b.
With a simple structure as a structure that sucks water from the central part of
A bathtub cleaner having a stable cleaning operation of the cleaning means 2 is realized.

At this time, as shown in FIGS. 4 and 5, the brush 2a of the cleaning means 2 is constructed by providing the water inlet 2c of the cleaning means 2 with the net 15 which is detachable.
It is possible to realize a bathtub cleaning machine in which unnecessary substances such as scales that have been dropped are not removed by the net 15 and reattached to the inner wall of the bathtub 14, and also scales are not attached to the inside of the main body 1.

The net 15 has a frame 16 attached integrally with the net 15, which is press-fitted into a water suction path through which water is sucked by the rotation of the impeller 3. Even if the press-fitting is light, the suction pressure of water acts on the frame 1.
6 is not out of the question. That is, in this embodiment, the frame 16 is lightly press-fitted so that the frame 16 can be attached and detached. Therefore, the scales and the like dropped from the side wall 16 by the rotation of the brush 2a are sucked together with water from the water suction port 2c and are collected on the net 15.

At this time, as shown in FIG.
By providing the corner detecting means 20 and the direction changing means 22 in the main body 1, it is possible to realize a bathtub cleaner that can reliably change the direction of the corner of the bathtub 14.

The corner detecting means 20 comprises a detecting rod 20a and a coil spring 20b for urging the detecting rod 20a outward, and the direction changing means 22 includes a link 22a which is linked to the detecting rod 20a and rotates. , And a rudder 22b connected to the link 22a. Rudder 22
b controls the direction of the jet water flow blown out by the impeller 3 from the blowout portion 7b. The main body 1 advances as shown by an arrow 44 while driving the brush 2a to clean the side wall 16. When the main body 1 reaches the corner,
Corner detecting means 20 protruding in the traveling direction of the main body 1
The side wall 45 receives the force in the direction of the arrow 46 of the detection rod 20a constituting the. This force increases as the position of the main body 1 approaches the corner portion, and when the force exceeds the biasing force of the coil spring 20b, the link 22a forming the direction changing means 22.
Causes a rotational movement. The rudder 22b connected to the link 22a is displaced according to the rotation amount of the link 22a.
Therefore, the direction of the jet water flow blown out from the blowout portion 7b by the impeller 3 is changed. That is, in the corner portion, the main body 1 smoothly changes its direction along the curve of the corner portion. As a result, the cleaning can be efficiently performed without delaying the cleaning at the corner portion.

At this time, if the main body 1 is provided with the water detection means 31 and the notification means 33 such as a buzzer as shown in FIG. 7, the operation is continued while the water is present, and the water is consumed. A bathtub cleaner that can stop the operation at a time and notify the end of cleaning. The water detection means 30 can introduce water from the outside of the main body 1, and comprises a float 31 which is moved by this water and a micro switch 32 which is linked to the float 31 and whose switch is turned on / off. When the cleaning progresses and the remaining hot water 13 decreases, the water level in the water detecting means 30 lowers, the float 31 lowers, the micro switch 32 turns off, and the main body 1 automatically stops operating. In this state, the main body 1
Since the switch 10 of 1 is turned on, the notification means 33 notifies the end.

Thus, according to the present embodiment, when the water runs out, the operation of the main body 1 is stopped to suppress the wasteful consumption of the battery 6, and the end of cleaning is notified to notify the timing of the next work. Is something that can be done.

Further, as shown in FIG. 8, when the bottom surface detecting means 40 for detecting the bottom surface 43 of the bathtub is provided at the bottom of the main body 1 and the notifying means 33 is provided at the top of the main body 1, the bottom surface of the bathtub is The present invention realizes a bathtub cleaner that can stop the operation at the time of detection and notify the end of cleaning. The bottom surface detecting means 40 is configured by a knob 41 and a micro switch 42 that is in contact with one end of the knob 41. When the amount of the remaining hot water 13 decreases and the bottom surface 43 of the bathtub pushes the knob 41, the micro switch 42 is turned off, the main body 1 automatically stops its operation, and the notifying means 33 is operated.

If the control circuit of the motor 4 of the main body 1 is configured as shown in FIG. 9, it is possible to realize a bathtub cleaner capable of setting the cleaning rate corresponding to the drainage rate peculiar to the bathtub. is there.

In this embodiment, the propulsion speed adjusting means 50 composed of a variable resistor and the speed changing means 51 composed of a microcomputer are connected to the motor 4. The speed varying means 51 has a relationship between the drainage speed of the bathtub and the voltage applied to the motor in the form of a program, and if the initial speed is set by the propulsion speed adjusting means 50, the voltage applied to the motor 4 thereafter is changed. It adjusts automatically.

FIG. 10 shows changes in the drainage speed at the moment when the cleaning is started and the drainage speed until the cleaning is completed.
As shown in a and b, the drainage characteristics are almost determined by the initial velocity V peculiar to the size of the drainage port of the bathtub, the volume of the bathtub and the like. The one shown in a shows the characteristics of the initial velocity being V _0, and the one shown in b shows the characteristics of the initial velocity being V ₁ . The speed varying means 51 has this drainage characteristic as a program, and adjusts the rotation speed of the motor 4 so that the cleaning can be finished just when the remaining hot water in the bathtub is finished.

In this way, the propulsion speed of the main body 1 is adjusted so that the cleaning can be finished just when the water in the bathtub is exhausted, and the bathtub cleaner in which the use efficiency of the power source 9 is maximized is realized. .

At this time, as shown in FIG. 11, the main body 1
Ultrasonic distance measuring means 5 for measuring the distance to the bottom 43 of the bathtub
5 and the second speed varying means 56 for adjusting the voltage applied to the motor 4 according to the information of the ultrasonic distance measuring means 55, a bathtub cleaner that always cleans at an optimum propulsion speed. It will be realized. The ultrasonic distance measuring means 55
By driving the microphone 55a and measuring the reflection time, the distance to the bottom surface 43 of the bathtub, that is, the water level is detected, and the result is transmitted to the second speed varying means 56. The second speed varying means 56 is composed of a microcomputer or the like, and adjusts the voltage applied to the motor 4 according to a program that has it in advance. FIG. 12 is a characteristic diagram showing this program and shows the relationship between the drainage speed of water drained from the drainage port of the bathtub and the water level. When the water level is high, the drainage speed is high like V ₁ , and the drainage speed gradually decreases as the drainage progresses. The ultrasonic distance measuring means 55 detects this water level, the second speed varying means 56 estimates the drainage speed, and adjusts the voltage applied to the motor 4 as described in the embodiment of FIG. is there.

At this time, the power supply 65 used as shown in FIG. 13 is used as a secondary battery, and the secondary coil 6 is used.
3 and the charging circuit 64 that is charged by the secondary coil 63, and an external charger 61.
If the battery is charged by means of, the main body 1 can have a closed structure and a highly reliable bathtub cleaner can be provided.

That is, when the power source 65 is charged, the external charger 61 is driven. When the external charger 61 is driven, a high frequency voltage is applied to the primary coil 62,
The primary coil 62 generates a high frequency magnetic field to generate a secondary coil 63.
Interlink with Therefore, a high frequency voltage is induced in the secondary coil 63. This high frequency voltage is rectified by the charging circuit 64.
The power supply 65 is charged by smoothing and voltage control.
When the power source 65 is charged by the induction charging means 60, charging can be performed without contact and it is not necessary to provide an electrical contact. Further, it is not necessary to provide a lid for replacing the battery, a protective lid such as a connection jack for externally charging the battery, or the like. That is, it is possible to eliminate a portion that is difficult to waterproof. Therefore, in the case of the present embodiment, the main body 1 can be easily made to have a seal structure.

(Second Embodiment) Next, a second embodiment of the present invention will be described. In FIG. 14, in the main body 1,
Cleaning means 2 having a brush 2a for cleaning the inner wall 16 of the bathtub 14, a plurality of magnet rollers 70 rotating while adsorbing to the inner wall 16, a propeller 71 for ejecting a jet water flow, and a battery serving as a power source for driving the propeller 71. 6 and.

The operation of this embodiment will be described below.
If the bathtub 14 is made of a magnetic material such as stainless steel, it can be attracted by magnetic force. The bathtub cleaner of the present embodiment exerts its power in the case of such a bathtub made of a magnetic material. The magnet roller 70 is the inner wall 16 of the bathtub 14.
Is adsorbed on the main body 1 and is rotated by the jet water flow generated by the propeller 71, and the entire main body 1 moves. At this time, the brush 2a of the cleaning means 2 is rotating on the inner wall 16 as in the above embodiment, and cleans the inner wall 16.

At this time, according to this embodiment, unlike the case of pressing the inner wall 16 of the bathtub by suction of water, which is adopted in the above-described embodiment, the magnetic force of the magnet roller 70 causes the bathtub 1 to move.
It is adsorbed on the inner wall 16 of No. 4. Therefore, this suction force is stable, and the distance between the inner wall 16 and the main body 1 can be kept constant. Therefore, as compared with the above embodiment,
Cleaning with the brush 2a can be made more uniform.

At this time, as shown in FIG. 15, if the main body 1 is provided with the ultrasonic cleaning means 72 in place of the cleaning means 2, it can be cleaned with ultrasonic waves without damaging the surface of the bathtub 14. It realizes a bathtub cleaner.

That is, the magnet roller 70, which rotates while adsorbing to the inner wall 16 with a constant magnetic force, rotates by the jet water flow generated by the propeller 71, and moves with the main body 1 by the ultrasonic cleaning means 72 to cause the inner wall 1 to move.
6 is to be cleaned. Since the cleaning is performed by the ultrasonic cleaning means 72, there is no possibility that the inner wall 16 will be damaged at all.

[0044]

The first means of the present invention is a cleaning means for cleaning the inner wall of the bathtub while floating on the water surface, a suction means for pressing the cleaning means against the inner wall of the bathtub by the suction force of water, and a bathtub. Which has a propulsion means for moving the cleaning means along the inner wall of, and a power source for the cleaning means, the suction means and the propulsion means, which can float on the water surface to automatically clean the inner wall of the bathtub,
Moreover, it is possible to realize a small-sized bathtub cleaner that can be used only when cleaning the bathtub.

According to the second means of the present invention, at least the cleaning means and the suction means are driven by the same motor, and water is sucked from the central portion of the cleaning means.
It is intended to realize a bathtub cleaner that is simple and can perform a stable cleaning operation.

A third means of the present invention is that the suction means has a water intake port detachably provided with a net for removing unwanted substances, so that scales and the like will not be reattached to the inner wall of the bathtub, and the equipment It realizes a bathtub cleaner that does not have deposits of scales inside.

A fourth means of the present invention is provided with a corner detecting means for detecting a corner portion of a bathtub and a direction changing means, and the bathtub cleaning can surely change the direction at the corner portion of the bathtub. To realize the machine.

The fifth means of the present invention is provided with water detecting means for detecting the presence of water, continuing the operation while there is water, stopping the operation when there is no water, and notifying the end of cleaning. It is an object of the present invention to realize a bathtub cleaner capable of suppressing wasteful consumption of a battery used as a power source and notifying when to move to the next work.

The sixth means of the present invention is provided with a bottom surface detecting means for detecting the bottom surface of the bathtub and stopping the operation at the time when the bottom surface of the bathtub is detected to notify the completion of cleaning, and is used as a power source. The present invention realizes a bathtub cleaner that can reduce unnecessary battery consumption and notify the user of the timing to move to the next work.

The seventh means of the present invention is propulsion speed adjusting means for adjusting the speed of the motor, and speed varying means for automatically adjusting the voltage applied to the motor according to the drainage speed of the bath and the voltage applied to the motor. The present invention provides a bathtub cleaner that can always perform cleaning at an optimum propulsion speed.

The eighth means of the present invention is an ultrasonic distance measuring means for measuring the distance to the bottom of the bath, and a speed varying means for adjusting the voltage applied to the motor according to the information of the ultrasonic distance measuring means. The present invention realizes a bathtub cleaner that always performs cleaning at an optimum propulsion speed.

The ninth means of the present invention is that the power source is a secondary battery charged by induction charging means, and the equipment has a sealed structure to realize a highly reliable bathtub cleaner. .

The tenth means of the present invention is a cleaning means for cleaning the inner wall of the bathtub while floating on the water surface, a plurality of magnet rollers for adsorbing the cleaning means to the inner wall of the bathtub, and along the inner wall of the bathtub. A bathtub cleaner having a propulsion unit for moving the cleaning unit and a power source for the cleaning unit and the propulsion unit, which is capable of stably cleaning the bathtub.

The eleventh means of the present invention is an ultrasonic cleaning means for cleaning the inner wall of the bathtub while floating on the water surface, a plurality of magnet rollers for adsorbing the ultrasonic cleaning means to the inner wall of the bathtub, and a bathtub. The bathtub cleaner has a propulsion means for moving the cleaning means along the inner wall of the bathtub, and a power source for the cleaning means and the propulsion means, and does not damage the surface of the bathtub by ultrasonic cleaning.

[Brief description of drawings]

FIG. 1 is a side view showing a part of a bathtub cleaner according to a first embodiment of the present invention in a cutaway cross section.

FIG. 2 is a front view of the bathtub cleaner.

FIG. 3 is a perspective view illustrating a usage state of the bathtub cleaning machine.

FIG. 4 is a cross-sectional view of a brush that constitutes cleaning means of the bathtub cleaning machine.

FIG. 5 is a front view of the brush.

FIG. 6 is a partial plan view illustrating a cleaning state of a bathtub corner portion of the bathtub cleaning machine.

FIG. 7 is a front view showing a part of the bath cleaner including a water detecting means in a cutaway cross section.

FIG. 8 is a front view showing a partial cutaway cross section of the bath cleaner including the bottom surface detection means.

FIG. 9 is a circuit diagram of the bathtub cleaner.

FIG. 10 is a characteristic diagram showing the relationship between the elapsed time during drainage of a bath and the drainage speed, which shows the control program of the bathtub cleaner.

FIG. 11 is a circuit diagram showing a relationship between ultrasonic distance measuring means and speed varying means of the bathtub cleaning machine.

FIG. 12 is a characteristic diagram showing the relationship between the water level and the drainage speed when the bath is drained, which shows a control program provided in the speed varying means of the bathtub cleaner.

FIG. 13 is a front view showing a configuration in which a secondary battery for charging the power source of the bathtub cleaning machine by an induction charging unit is partially cutaway.

FIG. 14 is a plan view of a bathtub cleaner according to a second embodiment of the present invention.

FIG. 15 is a plan view of a bathtub cleaner having the same ultrasonic cleaning means.

FIG. 16 is a sectional view showing the configuration of a conventional automatic bath cleaning apparatus.

FIG. 17 is a perspective view showing another conventional example.

[Explanation of symbols]

 1 main body 2 cleaning means 2a brush 3 impeller 4 motor 6 battery 15 net 20 corner detecting means 22 direction changing means 30 water detecting means 33 informing means 40 bottom surface detecting means 50 speed adjusting means 51 speed varying means 55 ultrasonic distance measuring means 56 Second speed varying means 60 Induction charging means 62 Primary coil 65 Secondary battery 70 Magnet roller 71 Propeller 72 Ultrasonic cleaning means

Claims (11)

[Claims] 1. Cleaning means for cleaning the inner wall of a bathtub while floating on the water surface, suction means for pressing the cleaning means against the inner wall of the bathtub with water suction force, and moving the cleaning means along the inner wall of the bathtub. A bathtub cleaner having a propulsion unit for causing the cleaning unit, a suction unit, and a power source for the propulsion unit. 2. The bath cleaning machine according to claim 1, wherein at least the drive sources of the cleaning means and the suction means are constituted by the same motor, and water is sucked from the central portion of the cleaning means. 3. The bath cleaning machine according to claim 1, wherein a net for removing unnecessary substances is detachably provided at the water inlet of the suction means. 4. The bathtub cleaning machine according to claim 1, further comprising a corner portion detecting means for detecting a corner portion of the bathtub and a direction changing means. 5. The water detecting means according to claim 1, further comprising water detecting means for detecting the presence of water, continuing the operation while the water is present, stopping the operation when the water is exhausted, and notifying the end of cleaning. The bathtub cleaner described in item 1. 6. The bathtub cleaning according to claim 1, further comprising bottom surface detection means for detecting the bottom surface of the bathtub and stopping the operation when the bottom surface of the bathtub is detected, and notifying the end of cleaning. Machine. 7. A propulsion speed adjusting means for adjusting the speed of the motor, and a speed varying means for automatically adjusting the voltage applied to the motor according to the drainage speed of the bathtub and the voltage applied to the motor. The bathtub cleaner according to any one of 6 above. 8. An ultrasonic distance measuring means for measuring the distance to the bottom of the bathtub, and a speed varying means for adjusting the voltage applied to the motor according to the information of the ultrasonic distance measuring means. The bathtub cleaner according to any one of 1. 9. The bathtub cleaning machine according to claim 1, wherein the power source is a secondary battery charged by induction charging means. 10. Cleaning means for cleaning the inner wall of the bathtub while floating on the water surface, a plurality of magnet rollers for attracting the cleaning means to the inner wall of the bathtub, and a propulsion means for moving the cleaning means along the inner wall of the bathtub. And a bathtub cleaner having a power supply for the cleaning means and the propulsion means. 11. An ultrasonic cleaning means for cleaning the inner wall of a bathtub while floating on the water surface, a plurality of magnet rollers for adsorbing the ultrasonic cleaning means to the inner wall of the bathtub, and cleaning means along the inner wall of the bathtub. A bathtub cleaner having a moving means for moving and a power source for the cleaning means and the driving means.