JP2011106175A - Warm water washing toilet seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a warm water washing toilet seat which supplies washing water to be used without anxiety while controlling the proliferation of various bacteria in a water tank with an antibacterial agent, and which facilitates supplying of the antibacterial agent when exhausted. <P>SOLUTION: A water tank 3 storing washing water is provided with a water-warming heater 26 and a thermistor 27, allowing a control circuit 12 to control the heater to maintain the temperature of the washing water at a set temperature set by a user. A cartridge-type sterilizing apparatus 35 is assembled into a plug member 39 to seal the drain port 38 at the bottom of the water tank 3 so as to open/close the drain port. In the cartridge-type sterilizing apparatus 35, a plurality of block-shaped sterilizing agents comprising a controlled solubilizing glass solid solution is stored in a grid-shaped case. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a warm water cleaning toilet seat comprising a water tank for storing cleaning water and a cleaning nozzle for injecting the cleaning water supplied from the water tank toward the bottom of a human body.

  This type of warm water cleaning toilet seat is installed in a Western-style toilet, and has a function of cleaning the user's buttocks (an anus or a woman's local area) by spraying cleaning water from the cleaning nozzle after the toilet. This warm water flush toilet seat is equipped with a water tank that stores a considerable amount of water (wash water) for several times, and a heater is attached to this water tank to heat the water in the water tank to a set temperature, for example, about body temperature. It is common to keep warm water.

  However, even if clean water is supplied to the water in the water tank, the chlorine evaporates by heating, so there are some bacteria (such as Pseudomonas aeruginosa and Serratia bacteria) that are slightly contained. It has been pointed out that it breeds and becomes contaminated. In this case, care should be taken when there is something that is not a problem for a healthy person, or when the buttocks are sick or injured. Therefore, for example, Patent Document 1 discloses that in a warm water washing toilet seat, a metal ion generator that generates bactericidal silver ions is provided in the middle of a water supply pipe or in a water tank to prevent propagation of various bacteria. Yes. As another example, for example, Patent Document 2 discloses that a disinfectant in which a disinfecting component is gradually dissolved in water is provided in a water tank.

JP 2005-336856 A JP 2008-121303 A

  In the above-mentioned Patent Document 1, the metal ion generator is configured to generate bactericidal silver ions by electrolysis using a silver electrode for the anode, so that the apparatus becomes large and expensive and large. There is a bug. On the other hand, with the configuration in which the disinfectant is provided in the water tank of Patent Document 2, it can be easily implemented at a relatively low cost. However, in the configuration of Patent Document 2, consideration is not given to replenishment and replacement when the antibacterial agent in the water tank is consumed and the effect is lost, and there is room for improvement.

  That is, this type of antibacterial agent is gradually dissolved in water and has a considerably long life, but the degree of consumption of the antibacterial agent varies depending on the frequency of use of the cleaning. When the frequency of use of toilets at home is relatively low, the consumption of antibacterial agents is relatively slow, whereas when the frequency of use of public toilets is high, antibacterial agents are consumed quickly. To do. When the antibacterial agent is exhausted (has reached the end of its life), it needs to be replenished or replaced. However, the water tank has not been provided so that the user can easily remove it. It is also conceivable to provide a large amount of antibacterial agent that does not require replenishment. However, this increases the cost and installation space, and causes inconvenience that waste is increased when the frequency of use is low.

  The present invention has been made in view of the above circumstances, and the purpose of the antibacterial agent is to suppress the growth of germs in the water tank by the antibacterial agent and to supply wash water that can be used with peace of mind. An object of the present invention is to provide a warm water flush toilet seat that can be easily replenished when consumed.

  In order to achieve the above object, a warm water cleaning toilet seat according to the present invention includes a water tank for storing cleaning water, and a cleaning nozzle for injecting the cleaning water supplied from the water tank toward the bottom of the human body. In which a disinfectant comprising a gradually dissolving glass solid solution is housed in a case, and an antibacterial component of the disinfectant is gradually dissolved in the water in the water tank. The type sterilization apparatus is characterized in that it can be attached and detached from the outside.

  According to this, the antibacterial component of the disinfectant gradually dissolves in the water in the water tank by attaching the cartridge-type disinfection device to the water tank that stores the wash water, and the germs in the water tank Breeding is suppressed. At this time, since the cartridge type sterilization apparatus can be removed from the outside, the antibacterial agent can be easily replenished or replaced as a whole by removing it from the water tank when the antibacterial agent is consumed.

  According to the warm water washing toilet seat of the present invention, since the cartridge type sterilization device is detachably attached to the water tank, the antibacterial agent suppresses the propagation of germs in the water tank and can be used with peace of mind. While water can be supplied, an excellent effect is obtained that the antibacterial agent can be easily replenished when consumed.

The perspective view which shows one Example of this invention and shows the external appearance of a warm water washing toilet seat The figure which shows the route of the water supply provided in a main part roughly Block diagram schematically showing the electrical configuration centering on the control circuit Schematic longitudinal cross-sectional view which shows a mode that the stopper member and the cartridge-type disinfection apparatus are attached to the drain outlet part of the water tank Cartridge-type disinfection device and exploded perspective view of plug member Flowchart showing control procedure executed by control circuit when cleaning water is not used FIG. 4 shows another embodiment of the present invention and is equivalent to FIG. The perspective view of the cartridge type sterilizer integrated with the stopper member

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows an appearance of a warm water cleaning toilet seat 1 according to the present embodiment, and FIG. 2 shows a schematic configuration of a water supply path of the hot water cleaning toilet seat 1. Further, FIG. 3 schematically shows an electrical configuration of the warm water cleaning toilet seat 1.

  Here, as shown in FIG. 1, the main body 2 of the warm water flush toilet seat 1 is configured to have a water tank 3 (see FIG. 2) or the like for storing flush water, and is attached to the rear upper surface of the Western-style toilet L. It has been. A toilet seat 4 is attached to the front portion of the main body 2 so as to be openable and closable, and a lid 5 for closing the upper surface of the toilet seat 4 is attached to be openable and closable. The toilet seat 4 incorporates a toilet seat heater 6 (shown only in FIG. 3) made of a wire heater. Further, a human sensor 7 including an infrared sensor that detects the seating of the user is provided at the rear of the toilet seat 4.

  Further, a cleaning nozzle 8 is provided at the front portion of the main body 2 so as to be located below the toilet seat 4. Although detailed illustration and explanation are omitted, the washing nozzle 8 includes a butt nozzle for washing a user's butt (anus) and a bidet nozzle for washing a female part. Yes. At this time, the cleaning nozzle 8 is configured to move back and forth between the use position and the retracted position by a moving mechanism using the nozzle drive motor 9 shown in FIGS. 2 and 3 as a drive source. In this embodiment, a nozzle cleaning tube 34 (see FIG. 2) and a discharge port are provided, and the cleaning nozzle 8 can be cleaned by spraying cleaning water.

  As shown in FIG. 1, a control panel 10 is provided on the left side of the main body 2. On the surface portion of the control panel 10, various operation switches 11 are provided so as to be operable, and a display lamp, a remote control sensor, and the like are provided. Although not described in detail, the various operation switches 11 include a butt switch, a bidet switch, a stop switch, an ejection pressure adjustment key, a washing water temperature setting key, a toilet seat temperature setting key, a nozzle washing switch, a deodorizing switch, and the like. It is. Inside the control panel 10 (on the back side), electrical components such as a circuit board on which a control circuit 12 (see FIG. 3) for controlling the whole is mounted is provided.

  Further, as shown in FIG. 1, water in the water supply is supplied into the main body 2 (water tank 3) through a water supply branch plug 13 and a toilet seat water supply pipe 14. The other outlet of the water supply branch plug 13 is connected via a water supply pipe 15 to a low tank (not shown) for storing water for cleaning the toilet bowl L. The main body 2 is supplied with commercial power via a power line 16 and a plug 17 and is grounded via a ground line 18.

  Next, the water supply path provided in the main body 2 will be described with reference to FIG. A fixed amount (equivalent amount for several cleaning operations) of cleaning water is stored in the water tank 3 described above, and the cleaning water is heated to a set temperature (for example, about a human body temperature) to be warmed. The front end portion of the toilet seat water supply pipe 14 is connected to a hose coupling portion 19 to supply tap water. The water supplied to the hose connecting portion 19 is adjusted to an appropriate water pressure by the pressure reducing valve 20. Thereafter, the water supply electromagnetic valve 21 is opened, and then supplied to the water tank 3 via the water supply hose 22.

  The water tank 3 is provided with a float switch 23 for detecting the water level in the water tank 3, and the detection signal is input to the control circuit 12 as shown in FIG. 3. In response to a signal from the float switch 23, the control circuit 12 controls opening and closing of the water supply electromagnetic valve 21 so that the water level in the water tank 3 becomes a predetermined specified water level. The water tank 3 is provided with an overflow pipe 24 for discharging water exceeding the upper limit water level into the toilet bowl L. An overpressure safety valve 25 is also provided for releasing the pressure when the internal pressure of the water tank 3 abnormally increases.

  The water tank 3 is provided with a water temperature adjusting device for adjusting the internal cleaning water to a set temperature. This water temperature adjusting device is provided with a hot water heater 26 such as a sheathed heater as a heating means in the water tank 3 and a thermistor 27 as a temperature detecting device for detecting the temperature of the wash water in the water tank 3. This is realized including the control of the control circuit 12. In this case, as shown in FIG. 3, the temperature detection signal of the thermistor 27 is input to the control circuit 12, and the control circuit 12 controls the hot water heater 26 so that the temperature of the cleaning water is maintained at the set temperature.

  The set temperature can be set by the user in a range from room temperature (20 ° C.) to 45 ° C. or less, for example. Further, in the present embodiment, the thermistor 27 is provided in the water tank 3 at a position near the bottom on the left side in the drawing (in the vicinity of a drain port (plug member) described later). The hot water heater 26 is provided with a thermostat 28 and a thermal fuse 29 to ensure safety during overheating.

  The washing water stored in the water tank 3 and having the set temperature as described above is supplied to the washing nozzle 8 and injected by driving the flow rate adjusting valve 30 and the air pump 31 (shown only in FIG. 3). It is like that. At this time, an air pump 31 is connected to the flow rate adjusting valve 30 via an air hose 31a, and the cleaning water in the water tank 3 is jetted from the cleaning nozzle 8 in a state where air is mixed.

  The flow rate adjusting valve 30 adjusts the ejection pressure of the washing water, and the washing water flow path includes an ass washing tube 32 (butt nozzle), a bidet washing tube 33 (bidet nozzle), and a nozzle washing tube. 34 (discharge port) has a function of switching to any one of the three. As a result, it is possible to execute three types of cleaning modes, the buttocks cleaning mode, the bidet cleaning mode, and the nozzle cleaning mode.

  FIG. 3 schematically shows an electrical configuration around the control circuit 12 in the warm water flush toilet seat 1. The control circuit 12 is mainly composed of a computer (CPU), and receives operation signals from the operation switch 11 of the control panel 10 and signals from the human sensor 7, the float switch 23, and the thermistor 27. It is like that. Based on these input signals, the control circuit 12 controls the toilet seat heater 6, the drive motor 9, the water supply electromagnetic valve 21, the hot water heater 26, the flow rate adjustment valve 30, and the air pump 31, and the cleaning operation by the cleaning nozzle 8. And so on.

  The water tank 3 is provided with a cartridge-type sterilizer 35 for suppressing the propagation of germs inside the water tank 3. As shown in FIGS. 4 and 5, this cartridge type sterilization apparatus 35 is configured by housing a large number of block-shaped (debris-like) sterilization agents 37 in a plastic case 36. However, in this embodiment, as shown in FIG. 2, it is provided by being incorporated in a plug member 39 that closes and opens the drain port 38 provided at the bottom of the water tank 3.

  That is, a drain port 38 is provided in the left part of FIG. 2 in the bottom part which is the lower part of the water tank 3. The drain port 38 is provided for discharging water and emptying the water tank 3 when, for example, the main body 2 is removed or moved from the toilet bowl L for maintenance. As shown in FIG. 4, the drain port 38 is provided in a form having an internal thread portion 38 a on the inner peripheral surface.

  As shown in FIGS. 4 and 5, the plug member 39 integrally includes a knob portion 39a having a large-diameter disk shape and a small-diameter male screw portion 39b projecting from the upper surface portion thereof. . Furthermore, a circular fitting recess 39c is formed at the center of the upper end surface of the male screw portion 39b. The plug member 39 is configured to removably close the drainage port 38 by screwing the male threaded portion 39b into the female threaded portion 38a of the drainage port 38 from below. At this time, a ring-shaped packing 40 is provided on the upper surface of the knob portion 39 a of the plug member 39, and the packing 40 is in close contact with the periphery of the drain port 38 on the outer bottom surface of the water tank 3. The space between 38 and the plug member 39 is liquid-tightly sealed.

  On the other hand, the case 36 of the cartridge type sterilizer 35 has an outer diameter slightly smaller than the inner diameter of the drain port 38 (internal thread portion 38a), and has a small diameter protruding downward on the bottom surface (bottom). It has a cylindrical container shape (bottle shape) having an open mouth 36a. At the same time, the outer peripheral surface of the case 36 has a lattice shape (mesh shape) so that it has water permeability having a large number of through holes 36b (in FIG. 4, the through holes 36b are schematically shown). Show). The outer diameter dimension of the mouth portion 36a of the case 36 corresponds to the inner diameter dimension of the fitting recess 39c of the plug member 39, and is configured to be fitted. A groove into which the O-ring 41 is fitted is provided on the outer peripheral surface of the mouth portion 36a.

  The disinfectant 37 is made of a slow-dissolving glass solid solution such as a phosphate glass (or borate glass) that uniformly contains an antibacterial metal element, for example, silver, and passes through the mouth 36a of the case 36. It can be (stuffed into the interior) and has a block shape (debris shape) that is sufficiently larger than the through holes 36b (mesh). Further, the disinfectant 37 is colored blue by containing a small amount of cobalt element, for example. The antibacterial agent 37 is described in detail in Japanese Patent Application Laid-Open No. 2008-121303 related to the previous application of the present applicant.

  In the cartridge type sterilization apparatus 35, a large number of sterilizing agents 37 are accommodated in the case 36, and an O-ring 41 is arranged on the outer periphery of the mouth portion 36 a of the case 36, and the mouth portion 36 a is connected to the plug member 39. It is detachably attached to the plug member 39 by being pushed into the fitting recess 39c. Then, the cartridge-type sterilizer 35 is attached to the water tank 3 from the outside by attaching the plug member 39 to the drain port 38 while the cartridge-type sterilizer 35 is inserted into the water tank 3 from the drain port 38. Can be attached and detached.

  In this state, the cartridge-type sterilization apparatus 35 is immersed in the water in the water tank 3, and the sterilization component (silver ions) of the sterilization agent 37 is gradually dissolved. At this time, the cartridge-type sterilization apparatus 35 is provided in the vicinity of the thermistor 27 serving as the temperature detection apparatus. The plug member 39 and the cartridge sterilizer 35 from the water tank 3 (drain port 38) and the cartridge sterilizer 35 (case 36) from the plug member 39 can be easily removed. Of course, it can be done.

  In this embodiment, as will be described later in the description of the operation (flowchart description), the control circuit 12 is in a state where the wash water in the water tank 3 is not used due to its software configuration (execution of the control program). When it is continued for a certain time (first set time) or longer (for example, 2 to 3 days), control is performed to automatically lower the set temperature of the wash water. Further, when the state in which the washing water in the water tank 3 is not used continues for a predetermined time (second set time) longer than the first set time (for example, one week), the control circuit 12 When the cleaning water is used, control is performed such that the cleaning nozzle 8 is not used first for the human body but is used for cleaning the cleaning nozzle 8 and then returned to normal use. In this case, for example, about 20% of cleaning water in the water tank 3 can be used for cleaning the cleaning nozzle 8.

  Next, the operation of the above configuration will be described with reference to FIG. In the warm water washing toilet seat 1 having the above-described configuration, even if clean water is supplied to the water in the water tank 3, it is slightly contained by being heated by the warm water heater 26. (Pseudomonas aeruginosa, Serratia bacteria, etc.) may propagate. However, in the present embodiment, a cartridge type sterilization apparatus 35 in which a sterilizing agent 37 is accommodated in a case 36 is provided in the water tank 3 in which cleaning water is stored. Thereby, since the disinfecting component (for example, silver ions) of the disinfecting agent 37 is gradually dissolved in the washing water in the water tank 3, it is possible to suppress the propagation of germs in the water tank 3, and always Clean washing water can be provided.

  In this case, the disinfectant 37 used in the cartridge-type disinfecting device 35 is composed of a slow-dissolving glass solid solution, so that it can be used continuously for a long period (for example, several years to 10 years). However, if it continues to be used, it eventually reaches a state where it is consumed and needs to be replaced. At this time, since the cartridge type sterilization device 35 can be removed from the outside, the antibacterial agent 37 is easily removed from the water tank 3 and replaced with a new cartridge type sterilization device 35 (or the antibacterial agent). 37).

  In the present embodiment, since the cartridge type sterilization apparatus 35 is provided by being incorporated in the plug member 39, the cartridge type sterilization apparatus 35 can be attached to and detached from the cartridge type sterilization apparatus by the opening / closing operation of the plug member 39. The user can easily perform replacement (detachment) of the device 35. Unlike the case where the cartridge-type sterilizer 35 is provided separately, the drain port 38 can also be used as a mounting hole for the cartridge-type sterilizer 35, so there is no need to make a separate hole in the water tank 3 and the configuration is simple. Can be done.

  Here, the disinfectant 37 described above has a situation in which the antibacterial component dissolves depending on the temperature of the washing water, that is, the concentration of the antibacterial agent varies, and the solubility of the antibacterial component in water increases as the temperature of the washing water increases. Become. However, in this embodiment, the cartridge type sterilizer 35 is provided in the vicinity of the thermistor 27 for controlling the temperature of the washing water. As a result, the temperature of the cleaning water around the cartridge type sterilizer 35 is kept substantially constant at the set temperature. Accordingly, the concentration of the antibacterial agent in the washing water can be kept almost constant, stable sterilization performance can be obtained, and the life of the antibacterial agent 37 can be stabilized.

  By the way, in the warm water washing toilet seat 1, the frequency of use differs depending on whether it is a public toilet or a general household toilet. (Day) may not be used. At this time, particularly when the set temperature of the cleaning water is relatively high, there is a possibility that the antibacterial component of the antibacterial agent 37 may be dissolved into the water tank 3 more than necessary. That is, when there is no use of washing water for a long time, the germs remaining in the water tank 3 are almost killed, so there is no need to further increase the concentration of the antibacterial component in the washing water.

  In addition, if the wash water is not used for a long time and the concentration of the antibacterial component in the wash water is relatively high, the pH of the wash water is lowered particularly when the disinfectant 37 contains calcium phosphate, and the washing is performed. If water is used for washing, for example, there is a risk of irritation in people who have inflammation in the anus. Therefore, in this embodiment, in order to eliminate such inconvenience, the control circuit 12 performs control according to the procedure shown in the flowchart of FIG. 6 when the cleaning water is not used.

  That is, after confirming the cleaning operation (use of cleaning water) by the cleaning nozzle 8 in step S1, the time measuring operation is executed (started) in step S2. In step S3, it is determined whether or not a first set time (for example, a few days) has passed while the cleaning water is not used. If the continuous non-use time is within the first set time (No in step S3), the time measuring operation is continued in step S2. Although not shown in the figure, if there is a cleaning operation (use of cleaning water) in the middle of the loop of steps S2 and S3, the time counting operation is cleared (reset).

  When the continuous non-use time exceeds the first set time (Yes in step S3), in the next step S4, control for forcibly lowering the set temperature of the wash water is performed. In this case, for example, the set temperature is lowered to the lowest temperature (20 ° C.). At this time, the concentration of the antibacterial component in the wash water in the water tank 3 is sufficiently high, and the germs remaining in the water tank 3 are almost dead. Therefore, by forcibly lowering the set temperature, the antibacterial component of the antibacterial agent 37 can be prevented from melting into the water tank 3 more than necessary and becoming a high concentration. The life of the antibacterial agent 37 can be increased.

  In the next step S5, the timing operation is continued, and in the next step S6, it is determined whether or not the unused time of the cleaning water has exceeded a second set time (for example, one week). If the continuous non-use time is within the second set time (No in step S6), the time measuring operation is continued in step S5. In this case as well, although not shown, if there is a cleaning operation (use of cleaning water) in the middle of the loop of steps S5 and S6, the timekeeping operation is cleared (reset) and the set temperature Is restored.

  If the continuous non-use time exceeds the second set time (Yes in step S6), thereafter, the processing from step S7 is executed. In this process, the user's seating on the toilet seat 4 is monitored by the human sensor 7 (step S7). When seating is detected (Yes in step S7), the set temperature of the wash water is returned to the original in step S8, and a part of the wash water in the water tank 3 (20) in step S9. The nozzle cleaning operation for cleaning the cleaning nozzle 8 is performed by ejecting about a%) from the discharge port through the nozzle cleaning tube 34.

  Thereafter, in step S10, the water tank 3 is replenished with water (tap water), and the antibacterial agent for the washing water is diluted. In step S11, a hip cleaning or bidet cleaning operation is performed based on the user's operation. Thus, a part of the cleaning water having a relatively high antibacterial agent concentration in the water tank 3 is first used for cleaning the cleaning nozzle 8, and then the state in which the antibacterial agent concentration is lowered, that is, Local cleaning is performed with cleaning water that does not irritate the user. Therefore, the washing water in the water tank 3 is not wasted, and the washing water having a high antibacterial agent concentration can be used for washing the butt portion.

  As described above, according to this embodiment, since the cartridge type sterilization apparatus 35 is attached to the water tank 3 for storing the washing water, the antibacterial agent 37 suppresses the propagation of germs in the water tank 3 and can be relieved. Usable cleaning water can be supplied. When the antibacterial agent 37 is exhausted (has reached the end of its life), the cartridge sterilizer 35 is removed from the outside, and the cartridge sterilizer 35 can be easily replaced (supplemented with the antibacterial agent 37). It is possible to obtain an excellent effect of being able to. Since the antibacterial agent 37 can be replenished, the cartridge type sterilizer 35 itself can be made small, and the antibacterial agent 37 can be used without waste.

  In particular, in this embodiment, the cartridge-type sterilization apparatus 35 is constructed so as to be incorporated in the plug member 39 that closes the drain port 38 of the water tank 3 so as to be openable and closable. The user can easily perform the attaching / detaching work of the bacteria device 35. Further, since the thermistor 27 for controlling the temperature of the washing water is disposed in the vicinity of the cartridge type sterilization apparatus 35, the periphery of the cartridge type sterilization apparatus 35 can be maintained at a constant set temperature, and the sterilization agent 37 is washed. Stable sterilization performance can be obtained at a constant concentration that dissolves in water.

  Further, in this embodiment, when the state in which the washing water in the water tank 3 is not used continues for a certain time (first set time) or longer, the set temperature is automatically lowered, so the antibacterial agent 37 Can extend the lifetime of Further, when the state in which the cleaning water in the water tank 3 is not used continues for the second set time or more, the next time the cleaning water is used, it is not used for the human body but is used for cleaning the cleaning nozzle 8. Since such control is performed, it is possible to obtain an advantage that the cleaning water having a relatively high concentration of the antibacterial agent 37 can be used without waste, without using the cleaning water for cleaning the butt portion.

  7 and 8 show another embodiment of the present invention, and the configurations of the cartridge type sterilizer 51 and the plug member 52 are different from those of the above-described embodiment. That is, also in this embodiment, as shown in FIG. 7, a drain port 38 having a female screw portion 38 a is provided at the bottom of the water tank 3, and a plug member 52 that closes the drain port 38 so as to be opened and closed is provided. As shown in FIG. 8, the plug member 52 integrally includes a knob portion 52 a having a large-diameter disk shape and a small-diameter male screw portion 52 b protruding from the upper surface portion. A ring-shaped packing 40 is provided on the upper surface of the knob portion 52a.

  On the other hand, as shown in FIGS. 7 and 8, the cartridge-type sterilization apparatus 51 has a cylindrical shape in which both upper and lower surfaces are open and the outer peripheral wall has a lattice shape (mesh shape) having a large number of through holes 53a. A large number of sterilizing agents 54 are accommodated in the case 53. As shown in FIG. 8, a mesh-like lid 55 is also provided in the upper surface opening of the case 53 so as to be openable and closable, and the disinfection agent 54 can be accommodated (supplemented) by opening and closing the lid 55. ing.

  The disinfectant 54 is made of a slow-melting glass solid solution such as phosphate glass (or borate glass) that uniformly contains an antibacterial metal element, for example, silver, and the through holes 53a (mesh). It has a block shape (debris shape) sufficiently larger than that. At this time, the disinfectant 54 is colored by containing a metal oxide. As the metal oxide for coloring, for example, cobalt oxide, ferrous oxide, and manganese oxide can be adopted, and they exhibit dark blue, green, and brown colors, respectively.

  And the lower end part of the said case 53 is provided in the form integrally connected with respect to the upper surface part of the external thread part 52b of the said plug member 52. As shown in FIG. At this time, as shown in FIG. 7, a hollow portion 52 c whose bottom surface is opened is provided at the center portion of the plug member 52 from the knob portion 52 a to the male screw portion 52 b except for the upper wall portion of the male screw portion 52 b. Yes. A transparent circular window member 56 is provided on the upper wall portion of the male screw portion 52b so as to face the hollow portion 52c. The window material 56 constitutes the bottom surface of the case 53. As the window material 56, transparent plastic such as acrylic resin, polycarbonate resin, polyester resin, and polyethylene resin, glass, or the like can be used.

  The cartridge type sterilization apparatus 51 configured as described above is attached to the water tank 3 so as to be detachable from the outside by attaching the plug member 52 to the drain port 38. In this attached state, the cartridge type sterilization apparatus 51 is immersed in the water in the water tank 3, and the sterilization component (silver ions) of the sterilization agent 54 is gradually dissolved, so that germs in the water tank 3 propagate. Is suppressed, and cleaning water that can be used with confidence can be supplied.

  When the antibacterial agent 54 has been consumed (has reached the end of its life), the cartridge-type sterilization device 51 is removed from the water tank 3 together with the plug member 52, the lid 55 is opened, and the antibacterial agent 54 is replenished. Then, the cartridge type sterilization apparatus 51 can be attached to the water tank 3 together with the plug member 52 again. In this case, the user can easily perform the work of attaching and detaching the cartridge type sterilizer 51 to the water tank 3 from the outside.

  At this time, in this embodiment, the plug member 52 is provided with the window material 56 that allows the sterilizing agent 54 in the case 53 of the cartridge type sterilizer 51 to be seen through from the outside. The state of consumption of the sterilizing agent 54 inside the case 53 can be visually confirmed from the outside without removing the member 52 (cartridge type sterilization apparatus 51) to the water tank 3 one by one. Therefore, the disinfectant 54 can be replenished without mistakes in time. Further, since the disinfectant 54 is colored, it can be made easier to see when the disinfectant 54 is visually confirmed.

  The present invention is not limited to the embodiment described above and shown in the drawings. For example, the following expansion and modification are possible. That is, in each of the above embodiments, the drainage port 38 (plug members 39, 52) is provided at the bottom of the water tank 3, but the drainage port is provided on the lower side surface of the water tank so that the plug member and thus the cartridge-type disinfection device. It is good also as a structure which provides sideways. Moreover, you may make it provide a cartridge type | system | group sanitization apparatus in the position different from the drain port 38 (plug member 39, 52) with respect to a water tank. The plug member itself may be made of a transparent material so that the inside of the case of the cartridge type sterilization apparatus can be seen through.

  Furthermore, as a configuration of the cartridge type sterilization apparatus, it is needless to say that various modifications can be made, for example, with respect to the shape of the case, the attachment structure to the plug member, and the like. Also, the type of disinfectant, the coloring material, and specific numerical values such as the set time and temperature in the control are merely examples, and various changes can be made. In addition, various modifications can be made to the specific configuration of the warm water cleaning toilet seat. For example, the cleaning nozzle 8 includes two nozzles, a buttocks nozzle and a bidet nozzle. The present invention can be implemented with appropriate modifications within a range that does not deviate from the gist, such as a configuration in which both nozzles may be used together by changing the position and angle.

  In the drawings, 1 is a warm water washing toilet seat, 2 is a main body, 3 is a water tank, 8 is a washing nozzle, 12 is a control circuit, 26 is a hot water heater (water temperature adjusting device), 27 is a thermistor (temperature detection device), and 30 is a flow rate. Control valve, 31 is an air pump, 34 is a nozzle cleaning tube, 35 and 51 are cartridge type sterilizers, 36 and 53 are cases, 37 and 54 are sterilizing agents, 38 is a drain port, 39 and 52 are plug members, 56 Indicates a window material.

Claims (7)

In a warm water washing toilet seat comprising a water tank for storing washing water and a washing nozzle for injecting the washing water supplied from the water tank toward the bottom of the human body,
The water tank contains a sterilizing agent composed of a slow-dissolving glass solid solution in a case, and the cartridge type is configured such that the antibacterial component of the sterilizing agent gradually dissolves in the water in the water tank. A warm water washing toilet seat, wherein the sterilization apparatus is attached to be removable from the outside. In the lower part of the water tank, a drainage port is provided, and a plug member for closing the drainage port is provided.
The warm water cleaning toilet seat according to claim 1, wherein the cartridge type sterilization apparatus is provided by being incorporated in the stopper member.   The hot water according to claim 2, wherein the plug member is provided with a transparent window material for allowing the disinfectant in the case of the cartridge type disinfecting device to be seen through from the outside. Wash toilet seat.   The warm water-washed toilet seat according to claim 3, wherein the disinfectant is colored. Based on the temperature detection of the cleaning water in the water tank by the temperature detection device, a water temperature adjustment device for controlling the cleaning water to a set temperature is provided,
The warm water washing toilet seat according to any one of claims 1 to 4, wherein the cartridge type sterilization apparatus is provided in the vicinity of the temperature detection apparatus.   The warm water washing toilet seat according to claim 5, wherein the water temperature adjusting device automatically lowers the set temperature when the washing water in the water tank is not used for a predetermined time or longer.   When the state in which the cleaning water in the water tank is not used continues for a predetermined time or more, the next time the cleaning water is used, it is not used for the human body but is used for cleaning the cleaning nozzle. The warm water washing toilet seat according to any one of claims 1 to 6.

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