JP2008169570A - Sanitary washing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an economical sanitary washing device capable of suppressing the occurrence of odor and maintaining the sanitation of a toilet bowl by effectively acting bactericidal metal ions on microorganisms. <P>SOLUTION: In this sanitary washing device, the consumption of bactericidal metal ions by microorganisms is suppressed and the mixing of microorganisms from the excrement is suppressed by suppressing the remaining of excrement in the toilet bowl by an adhesion suppressing means. Since the bactericidal metal ions effectively act on the microorganisms, the occurrence of odor can be suppressed, and the sanitation of the toilet bowl can be maintained. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sanitary washing device that supplies sterilizing metal ions into a toilet and keeps the toilet hygienic.

  Dirt that adheres to the toilet bowl includes residual waste, urine scale that is produced by the decomposition of urea in the urine by enzymes contained in bacteria, and dirt caused by the growth of microorganisms such as bacteria and mold. It adheres as colored dirt on the back of the rim, in the toilet line of the toilet trap and in the toilet trap. The colored stains were unsanitary and generated odors due to the action of microorganisms. In order to keep the toilet bowl hygienic, as a toilet bowl cleaning device that sterilizes microorganisms that generate malodors, electrolysis that electrically elutes silver ions and copper ions as sterilizing metal ions and supplies them into the toilet bowl A toilet bowl cleaning device including a tank is known (for example, see Patent Document 1). FIG. 7 is a block diagram of a conventional toilet bowl cleaning apparatus.

  In FIG. 7, the excrement excreted in the toilet 100 is washed with washing water through a water supply pipe 102 by opening and closing a water supply valve 101 such as a flash valve. Further, a water storage type electrolysis tank 105 having at least one pair of electrodes 103 containing a metal that serves as an ion source of bactericidal metal ions and a float sensor 104 is connected to a toilet trap 107 of the toilet 100 via a flow control valve 106. ing. The electrode 103 is controlled by the control means 108, and by applying a voltage between the electrodes 103, bactericidal metal ions are eluted from the electrodes, and water containing bactericidal metal ions is supplied to the toilet trap 107. The float sensor 104 detects the water level of the water storage type electrolysis tank 105, opens and closes the electromagnetic valve 109, and supplies water to the water storage type electrolysis tank 105 from the water supply pipe 102. As metal ions having bactericidal properties, zinc ions, copper ions, silver ions and the like are used, but silver ions having a high bactericidal effect are generally used.

  By supplying sterilizing metal ions to the toilet trap 107, a continuous sterilizing effect can be obtained, and the proliferation of microorganisms generated in the toilet bowl and the toilet bowl trap is suppressed, the generation of bad odor is suppressed, and the toilet bowl is hygienic. Can keep.

In order to improve the hygiene of the toilet bowl, other methods using metal ions having a bactericidal effect are also used. As a method of always supplying a predetermined concentration of bactericidal metal ions in the toilet trap, There are those that supply bactericidal metal ions and those that provide an electrode for eluting bactericidal metal ions in a toilet flushing water tank (see Patent Document 2). However, the method of always supplying a predetermined concentration of bactericidal metal ions into the toilet trap has a problem that the amount of bactericidal metal ions used is increased and is uneconomical. In order to solve some of these problems and economically use expensive bactericidal metal ions, there are also those that control the timing of supplying bactericidal metal ions to a toilet (see Patent Document 3).
JP-A-11-106791 JP 2000-64289 A JP 2000-204532 A

However, in order to economically use expensive bactericidal metal ions, the conventional method of controlling the timing of supplying bactericidal metal ions to the toilet cannot control the timing of use of the toilet by the user. It was necessary to obtain a bactericidal effect in a short time. However, in order to obtain a bactericidal effect in a short time, the method of increasing the concentration of bactericidal metal ions has the problem that the amount of bactericidal metal ions used increases and is uneconomical.

In addition, since bactericidal metal ions react with organic matter and are consumed, if there is excrement remaining in the toilet bowl, silver ions are consumed in organic matter contained in the excrement, and sterilization is performed to disinfect microorganisms. There is also a problem that the growth of microorganisms cannot be suppressed due to the lack of functional metal ions. Furthermore, since about 10 ¹¹ microorganisms are contained in 1 gram in the excrement, the microorganisms in the toilet bowl to be sterilized increase due to remaining adhering to the toilet bowl. Thus, there also existed the subject that the quantity of the bactericidal metal ion required for disinfection will also increase by the microorganisms used as the disinfection object increasing. Furthermore, the method of supplying excess bactericidal metal ions in anticipation of residual excreta is uneconomical because the amount of bactericidal metal ions used increases, and if there is no excrement remaining, high concentration bactericidal There is also a problem that the conductive metal ions are colored by reacting with organic and inorganic substances in the toilet bowl.

  The present invention solves the above-mentioned conventional problems, and suppresses the attachment of excrement in the toilet bowl, so that bactericidal metal ions are effectively acted on microorganisms, and the generation of malodor is suppressed and the hygiene of the toilet bowl is improved. An object is to provide an economical sanitary washing device that can be maintained.

  The sanitary washing apparatus according to the present invention includes a metal ion elution means for eluting the bactericidal metal ions supplied into the toilet bowl, and an adhesion suppression means for suppressing adhesion of excrement remaining in the toilet bowl after washing with water. is there.

  According to the present invention, it is possible to suppress the consumption of bactericidal metal ions by organic matter by suppressing the excrement remaining in the toilet bowl by the adhesion suppression means, and to suppress the mixing of microorganisms from the excrement, It is possible to provide a sanitary washing device that can effectively cause bactericidal metal ions to act on microorganisms, suppress the generation of malodors, and maintain the hygiene of toilet bowls.

  The first invention comprises a metal ion eluting means for eluting bactericidal metal ions to be supplied into the toilet and an adhesion suppressing means for suppressing the adhesion of excrement remaining in the toilet after washing with water. By suppressing the excrement remaining in the toilet bowl by the means, bactericidal metal ions can be effectively acted on microorganisms, and the generation of malodor can be suppressed and hygiene of the toilet bowl can be maintained.

  According to a second aspect of the present invention, the metal ion elution means includes at least one of a pair of electrodes provided with an electrode made of a metal that elutes the bactericidal metal ions, and the bactericidal metal ions are energized between the electrodes. Since the amount of the bactericidal metal ions eluted can be controlled by the amount of current flowing between the electrodes, the bactericidal metal ions can be supplied stably.

  According to a third aspect of the present invention, the adhesion suppressing means includes a jetting means for jetting water into the toilet bowl, and the toilet inner surface is wetted by the jetting means before use of the toilet bowl. Can be prevented and adhesion of excrement to the toilet can be suppressed.

  4th invention makes the structure which provided the metal ion elution means in the flow path which supplies water to an adhesion suppression means, and forms the water film containing a bactericidal metal ion in the toilet bowl by the ejection means of an adhesion suppression means Thus, the growth of microorganisms not only in the toilet bowl trap but also under the rim and on the toilet bowl surface can be suppressed.

  5th invention sets it as the structure provided with the adhesion suppression mode and the bactericidal metal ion ejection mode which stops electricity supply to the electrode of a metal ion elution means, when water is ejected in a toilet bowl as an adhesion suppression means. Thereby, elution of unnecessary bactericidal metal ions can be prevented, and the amount of bactericidal metal used can be suppressed.

  6th invention uses the water containing a bactericidal metal ion for the washing water which wash | cleans the local part of a human body by setting it as the structure which provided the metal ion elution means in the water supply source which supplies water to a sanitary washing apparatus. Therefore, it can be used for local sterilization washing and prevention of infection by local bacteria.

  7th invention provides the washing | cleaning means which wash | cleans the washing nozzle which wash | cleans a human body part, and uses the water containing a bactericidal metal ion for the washing water which wash | cleans a washing nozzle, and makes the washing | cleaning nozzle which becomes easy to become dirty It can be washed with water containing ions, and the hygiene of the nozzle can be improved, and water containing bactericidal metal ions is supplied into the toilet bowl as nozzle washing water, so that the toilet trap can be used for a long time. In addition, water containing bactericidal metal ions can be stored, and microorganisms in the toilet can be sterilized.

  Hereinafter, the present embodiment will be described with reference to the drawings. In each embodiment, the same reference numerals are given to portions performing the same form and the same operation, and detailed description is saved. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 shows the appearance of a sanitary washing device according to Embodiment 1 of the present invention. In FIG. 1, a sanitary washing device 10 is installed on the toilet bowl 11, and a main body 12 of the sanitary washing device, a stool that automatically opens and closes electrically. It is comprised from the lid | cover 13, the toilet seat 14 for a user to sit down, etc.

  Further, a water supply pipe (not shown) for receiving supply of cleaning water from the water supply and an electric cable 15 for receiving power supply from a wall outlet are provided.

  In the sanitary washing apparatus 10, a washing nozzle 16 for washing a local part of the human body and a jetting means 17 for jetting water on the inner surface of the toilet 11 are built in separately from the washing nozzle 16. Furthermore, metal ion eluting means for eluting bactericidal metal ions, drying function for drying the human body part after washing, room heating function for heating the toilet space when it is cold, human body that detects entering or leaving the toilet room Detection means 18 and the like are provided, and each operation is automatically operated by a remote controller 19 (hereinafter abbreviated as a remote controller) and a main body 12 attached to a wall surface.

  The toilet seat 14 is provided with a seating sensor 20 as detection means for detecting the presence of the user. The seating sensor 20 detects whether a user is seated on the toilet seat 14 using infrared rays. As a method, a method for detecting the capacitance of the toilet seat, and further, infrared rays and ultrasonic waves are used. Detecting the user's seating on the toilet seat using a method, etc., or detecting the user entering or leaving the toilet room, and detecting the presence of the user in conjunction with the toilet lighting, etc. Application as a means is possible.

  Further, a flush water tank 21 is mounted on the rear upper part of the toilet 11, and washing water for draining excrement in the western toilet 10 into sewage is stored.

FIG. 2 shows the external appearance of the remote controller 19, and the sterilizing metal ion from the bottom washing switch 22, the bidet washing switch 23, the drying switch 24, the indicator 25 for each function, the adjustment switch 26, the stop switch 27 and the metal ion elution means. Has a toilet sterilization switch 28 for manually supplying the urine into the toilet 11. And a user's operation signal is the structure transmitted to the main-body part 12 of a sanitary washing apparatus by radio | wireless signals, such as infrared rays.

  FIG. 3 is a configuration diagram illustrating a water circuit of the sanitary washing device according to the first embodiment. In FIG. 3, tap water is supplied to a sanitary washing device from a branch tap 30 connected to a water supply source 29. The tap water is supplied to the heating unit 36 through the strainer 31, the check valve 32, the constant flow valve 33, the original electromagnetic valve 34, and the flow sensor 35. The flow sensor 35 measures the flow rate to the heating unit 36 and heats it. The unit 36 is configured to heat the cleaning water for cleaning with an internal heater, and an instant water heater type that heats only during cleaning or a hot water storage type that always stores a predetermined amount of hot water by heating to a predetermined temperature is applied. it can. In the first embodiment, an instantaneous water heater type hot water unit is adopted, and the heating unit 36 is composed of a plate-shaped ceramic heater and meandering internal flow paths provided on both sides thereof, and is provided at the heat exchange inlet. The supplied normal-temperature cleaning water receives heat from the ceramic heater while flowing through the meandering internal flow path, and is heated to an appropriate temperature until the outlet of the heating unit 36. In this embodiment, a plate-shaped ceramic heater with excellent heat density is used as the heater, but various heater applications such as a sheathed heater, a mica heater, and a printed heater in which a resistor is provided on the plate material can be considered. Needless to say.

The flow rate of the hot water supplied from the heating unit 36 is adjusted by the water pump 37, and is discharged from the cleaning nozzle 16 including the butt nozzle 38 and the bidet nozzle 39 and the ejection means 17.
A switching valve 40 is connected to the downstream side of the heating unit 36, and the switching valve 40 includes an inlet channel 41 to which the heating unit 36 is connected, a first outlet channel 42 connected to the butt nozzle 38, and a bidet nozzle. The second outlet flow path 43 connected to 39 and the third outlet flow path 45 connected to the ejection means 17 via the bactericidal metal ion elution means 44 are selectively communicated by the motor 46.

  The metal ion elution means 44 has a pair of silver electrodes 47 inside, and is controlled by a power source (not shown) that applies a voltage between the silver electrodes 47 and a control means 48 that controls the amount of current flowing between the silver electrodes 47. It becomes the composition which is done.

  The ejection means 17 is a spray nozzle provided with an orifice portion inside the ejection means 17 in order to eject water to the entire inner surface of the toilet 11, and the water pressurized by the orifice portion is ejected from the opening. It spreads in the form of a water film on the entire toilet. In this embodiment, the spray nozzle is used as the spraying means in order to wet the entire toilet bowl and form a water film on the toilet surface. However, if the water film can be formed on the entire toilet bowl, the structure of the jetting means is limited. It is not a thing.

  About the sanitary washing apparatus comprised as mentioned above, an example of the effect | action and operation | movement is demonstrated.

  When the user's entry is not detected by the human body detection means 18 and the user's seating is not detected by the seating sensor 20, that is, when the user is waiting to enter the room, the inlet flow path of the switching valve 40 41, the motor 46 is moved so as to communicate with the third outlet channel 45, the channel is switched to the ejection unit 17, and water is ejected into the toilet bowl by the ejection unit 17 at the same time as the user enters the room. The adhesion suppressing means can operate and function before performing.

When it is detected by the human body detection means 18 that the user has entered the toilet, the original electromagnetic valve 34 is opened, and the ejection means 17 starts to eject water to the inner surface of the toilet 11 and simultaneously opens the toilet lid 13 automatically. . At this time, no voltage is applied to the silver electrode 47 of the metal ion elution means 44, and the ejection of water from the ejection means 17 is stopped for a predetermined time T1 in the adhesion suppression mode. Since the average time from when the user enters the toilet room until the user undresses and sits on the toilet seat is about 5 to 6 seconds, in this embodiment, the time T1 for ejecting water from the ejection means 17 is 4 seconds. Is set. By setting T1 to 4 seconds, the operation of the ejection means 17 is finished before the user is seated,
A water film can be formed in the toilet bowl to prevent adherence of excreta. If the seating of the user is detected by the seating sensor 20 before reaching the predetermined time T1, the original electromagnetic valve 34 is closed and the inlet flow path 41 of the switching valve 40 is connected to the first outlet flow path 42 or the second flow path. By switching to the outlet channel 43, the ejection of water from the ejection means 17 is forcibly terminated.

  The sanitary washing device 10 performs a local washing, drying function, and the like by operating each operation switch of the remote controller 19 while the user is seated on the toilet seat 14 and the seating sensor 20 detects the seating.

  When the user excretes excrement so as to be submerged in the trap part of the toilet bowl, the excrement does not easily adhere to the toilet bowl. However, when the user is sitting in front of the toilet seat 14, the physical condition or the meal It is conceivable that the nature of the excrement changes depending on the contents and the excrement tends to adhere to the toilet surface. When we investigated the state of excrement adhering to the toilet when the toilet was used as usual in a general household, the excretion adhering to the toilet after stool averaged about 2 per 10 defecations. It was times. Furthermore, the number of excrement remaining after washing with water was about once per 10 stool averages, and it can be seen that excrement remained attached to the toilet in a considerable proportion.

  Oily components such as fatty acids adhere to the toilet bowl. If they come into contact with the toilet bowl and adhere to the toilet bowl, they will not mix with water, making it difficult to wash only with water. In this embodiment, by providing an adhesion suppression means and forming a water film on the inner surface of the toilet, the water film prevents the excrement from coming into direct contact with the toilet and suppresses the excrement from adhering to the toilet. can do. Even when excrement adheres in the form of a water film, since the water film is formed between the toilet surface and the excrement, the excrement can be washed together with the water film by washing with water.

  Furthermore, by suppressing the adherence of excrement to the toilet bowl by the adhesion suppressing means, it is possible to suppress the contamination of the microorganisms derived from the excrement and to suppress the mixing of organic matter that consumes bactericidal metal ions.

  By providing the adhesion suppression means, it is possible to suppress the contamination of the microorganism itself. Compared to the case of supplying the bactericidal metal ions without providing the adhesion suppression means, the microorganisms can be added at a low concentration of the bactericidal metal ions. It is possible to sterilize and shorten the time required for sterilization. Thereby, even if it does not always supply a bactericidal metal ion, hygiene maintenance of a toilet becomes possible by supplying a bactericidal metal ion once a day in a toilet non-use time zone.

  Next, when a predetermined time is reached, a voltage is applied to the silver electrode 47 of the metal ion elution means 44 for a predetermined time T2, and then the original electromagnetic valve 34 is opened, and water is supplied from the ejection means 17 as a bactericidal metal ion elution mode. The ejection of T3 is stopped for a predetermined time. The current flowing through the silver electrode 47 is controlled by the control means 48 so that a constant current always flows, and the amount of elution of the bactericidal metal ions per time is proportional to the current value. The elution amount of the bactericidal metal ions can be controlled, and the bactericidal metal ions can be stably eluted regardless of the water quality and the water temperature. Water containing bactericidal metal ions is supplied into the toilet bowl by the jetting means 17 so that water containing bactericidal metal ions can be stored in the toilet trap for a long time, and microorganisms in the toilet bowl are sterilized. It becomes possible to do.

In the present embodiment, the storage electromagnetic electrolytic elution method is used in which the original electromagnetic valve 34 is closed and the metal ion elution means 44 is energized without passing water. However, the original electromagnetic valve 34 is opened and the metal ion elution is performed. A similar effect can be obtained by using a water-based electrolytic elution method in which a voltage is applied between the silver electrodes 47 while water is passed through the means, and water containing bactericidal metal ions is ejected from the ejection means 17. I can do it. When the water storage type electrolytic elution method of the present embodiment is used, the time T2 can be made longer than T3, and the current value and the applied voltage between the silver electrodes 47 can be reduced. The power supply circuit of the sanitary washing device main body can be used without providing a circuit.

  In this embodiment, since the pair of electrodes is composed of the silver electrodes 47, the polarity of the voltage applied between the silver electrodes 47 is reversed by the control means 48 each time it is used, and the pair of electrodes are consumed evenly. However, even if the anode is made of a metal such as a silver electrode and the cathode is made of a metal such as stainless steel, bactericidal metal ions can be eluted from the anode.

  Since the metal ion elution means 44 is provided in the flow path for supplying water to the adhesion suppression means, a water film containing bactericidal metal ions is formed in the toilet using the ejection means 17 of the adhesion suppression means. In addition to the toilet trap, it is possible to suppress the growth of microorganisms on the toilet surface.

  There are a method of determining the time when the sterilizing metal ions are supplied to the toilet bowl at night when the toilet bowl is not frequently used, a method of arbitrarily setting the time by the remote controller 19 by the user, and the like.

  Next, the result of having confirmed the hygiene maintenance effect by a test piece using silver ion as a bactericidal metal ion is shown.

  Using a test piece containing an alkali lime glass component used for a toilet bowl of 2.5 cm × 10 cm, the test piece was immersed in a conditioned staphylococcus aureus solution detected in the toilet bowl for 18 hours, (a ) 6 hours immersion in tap water adjusted to 0, 0.1 and 0.5 ppm, (b) 6 hours adjustment to 0, 0.1 and 0.5 ppm, and organics added The microorganisms adhering to the test piece were evaluated by repeatedly dipping in the tap water. FIG. 4 shows the number of bacteria attached to the test pieces on the 1st, 3rd, 6th, and 12th days.

  The test piece of (a) immersed in tap water obtained the effect of suppressing the adhesion of microorganisms to the test piece from a silver ion concentration of 0.1 ppm, whereas the test piece of (b) immersed in tap water added with organic matter The test piece could not confirm the effect of suppressing microorganisms at a silver ion concentration of 0.1 ppm, and an adhesion suppression effect was obtained at a silver ion concentration of 0.5 ppm.

  From this result, it was confirmed that the use amount of the bactericidal metal ions can be reduced to 1/5 by providing the adhesion suppressing means even when the bactericidal metal ions are supplied once a day. This indicates that the weight of the electrode of the metal ion eluting means can be reduced to 1/5, and the use of expensive sterilizing metal can be suppressed to 1/5, and the hygiene of the toilet can be maintained economically. The metal ion eluting means can be reduced in size, and can be stored compactly in the sanitary washing apparatus body.

(Embodiment 2)
FIG. 5 is a block diagram showing a water circuit of the sanitary washing device in the second embodiment, and FIG. 6 is a sectional view of the washing nozzle and the washing means in the second embodiment. 5 and 6, tap water is supplied to the sanitary washing device from the branch tap 30 connected to the water supply source 29. The tap water is supplied to the heating unit 36 through the strainer 31, the check valve 32, the constant flow valve 33, the original solenoid valve 34, the flow path switching valve 35, and the flow sensor 36, and the flow sensor 36 is supplied to the heating unit 36. The flow rate is measured, and the heating unit 36 is provided with a heater inside to heat the cleaning water for cleaning. An instantaneous water heater that heats only during cleaning or a predetermined amount of hot water is always heated to a predetermined temperature to store hot water. A hot water storage mold can be applied.

In the second embodiment, an instantaneous water heater type hot water unit is adopted, and the heating unit 36 is used.
Is composed of a plate-shaped ceramic heater and meandering internal flow passages provided on both sides thereof, and the normal temperature washing water supplied to the heat exchange inlet heats from the ceramic heater while flowing through this meandering internal flow passage. It is a mechanism in which it is heated to an appropriate temperature between receiving and the outlet of the heating unit 36.

  The flow rate of the hot water supplied from the heating unit 36 is adjusted by the water pump 37, and is discharged by the cleaning nozzle 16, the jetting unit 17, and the nozzle cleaning unit 55 including the butt nozzle 38 and the bidet nozzle 39.

  A switching valve 40 is connected to the downstream side of the heating unit 36, and the switching valve 40 includes an inlet channel 41 to which the heating unit 36 is connected, a first outlet channel 42 connected to the butt nozzle 38, and a bidet nozzle. The motor 46 selects the second outlet flow path 43 connected to the nozzle 39 and the nozzle cleaning means 55 for cleaning the surfaces of the buttocks nozzle 38 and the bidet nozzle 39 via the switching valve 56 and the third outlet flow path 51 connected to the ejection means 17. The metal ion elution means 52 is provided in the inlet channel 41 downstream of the heating unit 36.

  The metal ion elution means 52 has a round bar silver electrode 53 and a cylindrical stainless steel electrode 54 inside, and controls the power supply for applying a voltage between the silver electrode 53 and the stainless steel electrode 54 and the amount of current flowing between the electrodes. The configuration is controlled by means 48.

  The buttocks nozzle 38 and the bidet nozzle 39 are housed in a nozzle housing portion 56 having an opening in the lower portion and molded from a resin material, and the upper portions of the buttocks nozzle 38 and the bidet nozzle 39 are covered with a nozzle cover 57. A nozzle cleaning water flow path 58 is formed between the nozzle 39, the nozzle cover 57, and the nozzle storage portion 56.

  The nozzle cover 57 is provided with an ejection opening 59 for ejecting nozzle washing water for washing the buttocks nozzle 38 and the bidet nozzle 39, and a washing water flow path 58 is provided inside the nozzle cover 57. A cleaning water supply port 60 for supplying cleaning water is installed in the original portion, and communicates with the cleaning water supply means via a hose (not shown). The nozzle cleaning water ejected from the ejection opening 59 passes through the nozzle cleaning water flow path 58 formed between the buttocks nozzle 38 and the bidet nozzle 39 and the nozzle cover 57 and the nozzle storage portion 56, and passes through the buttocks nozzle 38 and the bidet nozzle 39. It is washed and discharged into the toilet 11.

  In addition, a nozzle shutter 61 that is rotatable up and down is provided on the upper end opening of the nozzle cover 57 and closes the end opening of the nozzle cover 57 in a state where the buttocks nozzle 38 and the bidet nozzle 39 are housed in the nozzle housing 56. be able to. When the butt nozzle 38 and the bidet nozzle 39 advance to the cleaning position, the nozzle shutter 61 opens upward by pushing the tip of the butt nozzle 38 and the bidet nozzle 39, and the butt nozzle 38 and the bidet nozzle 39 are stored in the storage position. In some cases, the nozzle shutter 61 rotates and closes under its own weight.

  A lower nozzle drive means 62 is installed below the nozzle housing 56, and the lower nozzle drive means 62 includes a drive motor 63 and a pinion gear 65 that transmits the rotation of the drive motor 63 to the rack 64. A rotation detection sensor 66 that detects the number of rotations of the drive motor 63 is installed at the rear of the motor 63. Further, although not shown in the figure, in order to slide the bidet nozzle 39, the same bidet nozzle driving means is provided.

  About the sanitary washing apparatus comprised as mentioned above, an example of the effect | action and operation | movement is demonstrated.

  When the user's entry is not detected by the human body detection means 18 and the user's seating is not detected by the seating sensor 20, that is, when the user is waiting to enter the room, the inlet flow path of the switching valve 40 41, the motor 46 is moved so as to communicate with the third outlet channel 45, the channel is switched to the ejection unit 17, and water is ejected into the toilet bowl by the ejection unit 17 at the same time as the user enters the room. The adhesion suppressing means can operate and function before performing.

  When it is detected by the human body detection means 18 that the user has entered the toilet, the original electromagnetic valve 34 is opened, and the ejection means 17 starts to eject water to the inner surface of the toilet 11 and simultaneously opens the toilet lid 13 automatically. . At this time, no voltage is applied to the silver electrode 47 of the metal ion elution means 44, and the ejection of water from the ejection means 17 is stopped for a predetermined time T1 in the adhesion suppression mode.

  The sanitary washing device 10 performs a local washing, drying function, and the like by operating each operation switch of the remote controller 19 while the user is seated on the toilet seat 14 and the seating sensor 20 detects the seating.

  For example, when the user selects the butt cleaning switch of the remote controller 19, the control means starts control, and the rotation of the drive motor 63 is transmitted to the pinion gear 65, whereby the butt nozzle 38 having the rack 64 meshed with the pinion gear 65. Is moved forward, and the buttocks nozzle 38 is moved to the buttocks washing position and then stopped. At that time, the switching valve 40 drives the motor 46 to connect the inlet channel 41 and the first outlet channel 42, and hot water heated to an appropriate temperature by the heating unit 36 is supplied to the buttocks nozzle 38 and is ejected to the local body part. Is done. When the stop switch 27 is operated to stop the buttocks cleaning, the drive motor 63 rotates in the reverse direction, and the buttocks nozzle 38 moves rearward and returns to the original storage state.

  Next, at a predetermined time, a voltage is applied between the silver electrode 53 and the stainless steel electrode 54 of the metal ion elution means 52 for a predetermined time T2 to elute bactericidal metal ions. Thereafter, the seating sensor 20 provided on the toilet seat 14 confirms the presence or absence of seating, and after confirming that the user is not seated on the toilet seat 14, the switching valve 40 drives the motor 46 to connect the inlet passage 41 with Nozzle cleaning water connected to the three outlet channels 51 and supplied with the nozzle cleaning water containing the bactericidal metal ions to the channel 57 and formed between the buttocks nozzle 38 and the bidet nozzle 39 and the nozzle cover 57 and the nozzle storage portion 56. The buttocks nozzle 38 and the bidet nozzle 39 are washed through the flow path 58, and water containing sterilizing metal ions is discharged into the toilet 11.

  Since the cleaning nozzle 16 is likely to be splashed with boiled water containing organic matter and bacteria when the human body is washed, if the bounce water containing organic matter or bacteria is attached, bacteria and dirt are stored. Adhesion is likely to occur. In the present embodiment, a cleaning nozzle that is easily soiled can be cleaned with water containing sterilizing metal ions, and the hygiene of the nozzle can be improved, and water containing sterilizing metal ions is used as nozzle cleaning water. By being supplied into the toilet, water containing bactericidal metal ions can be stored in the toilet trap for a long time, and microorganisms in the toilet can be sterilized.

  Note that the entire cleaning nozzle can be cleaned by repeating forward and reverse rotation of the drive motor 61 during cleaning of the cleaning nozzle 16 and cleaning the entire cleaning nozzle 16 while driving the cleaning nozzle 16 back and forth.

  In the present embodiment, the method of cleaning the cleaning nozzle 16 with water containing bactericidal metal ions has been described. However, the cleaning effect can be obtained by cleaning the human body cleaning nozzle with heated hot water using the heating unit 36. It can be further increased.

Further, by providing the metal ion elution means 52 in the inlet channel 41 on the downstream side of the heating unit 36, by controlling the voltage application to the metal ion elution means 52, water containing bactericidal metal ions can be added to the butt nozzle. 38, the bidet nozzle 39, the jetting means 17, and nozzle washing water can be supplied from any nozzle. When used for butt washing or bidet washing, it can be used for local sterilization washing and prevention of local suppuration or infection caused by various bacteria.

  As described above, the sanitary washing device according to the present invention includes the metal ion elution means and the adhesion suppression means, and effectively suppresses the disinfectant metal ions against the microorganisms by suppressing the remaining of the organic matter by the adhesion suppression means. It can also be applied as a washing function for Western-style toilets, washstands and worms.

External view of sanitary washing apparatus in Embodiment 1 of the present invention The perspective view of the remote control in Embodiment 1 of this invention Water circuit block diagram of the sanitary washing device in Embodiment 1 of the present invention (A) The figure which shows the number of bacteria which the test piece in Embodiment 1 of this invention immersed in tap water, and was attached (b) The number of bacteria which the test piece immersed in tap water which added the organic substance is shown Figure Water circuit configuration diagram in Embodiment 2 of the present invention Sectional drawing of the washing nozzle and washing | cleaning means in Embodiment 2 of this invention Configuration diagram of a conventional toilet bowl cleaning device

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sanitary washing apparatus 11 Toilet bowl 14 Toilet seat 16 Washing nozzle 17 Ejecting means 20 Seating sensor 44 Metal ion elution means 47 Silver electrode

Claims (7)

A metal ion elution means for eluting the bactericidal metal ions supplied into the toilet bowl, and an adhesion suppression means for suppressing the adhesion of excrement remaining in the toilet bowl after washing with water; The sanitary washing apparatus characterized by making the said bactericidal metal ion act effectively with respect to microorganisms by suppressing the residual | survival. The metal ion eluting means comprises at least one pair of electrodes provided with electrodes made of a metal that elutes bactericidal metal ions, and the bactericidal metal ions are eluted by energizing between the electrodes. Sanitary washing device. The sanitary washing device according to any one of claims 1 to 2, wherein the adhesion suppressing means includes a jetting means for jetting water into the toilet bowl, and wets the toilet inner surface by the jetting means before using the toilet bowl. The metal ion elution means is provided in a flow path for supplying water to the adhesion suppression means, and a water film containing bactericidal metal ions is formed in the toilet bowl by the ejection means of the adhesion suppression means. The sanitary washing device according to the item. 6. When water is spouted into a toilet as an adhesion suppression means, power supply to the electrode of the metal ion elution means is stopped, and an adhesion suppression mode and a bactericidal metal ion ejection mode are provided. Sanitary washing equipment. The metal ion eluting means is provided in a water supply source for supplying water to a sanitary washing device, and water containing bactericidal metal ions is used as washing water for washing a local part of the human body. 1. A sanitary washing device according to item 1. 7. A cleaning means for cleaning a cleaning nozzle for cleaning a human body part is provided, and water containing bactericidal metal ions is used as cleaning water for cleaning the cleaning nozzle. Sanitary washing equipment.