JP2010196265A - Warm water washing toilet seat device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problem: a user of a warm water washing toilet seat device sometimes feels discomfortable because warm water is splashed by the occurrence of the irregular jet of the warm water, when a jet of air accumulated in an upper portion in a warm water tank is emitted with the warm water from a nozzle through a warm water lead-out pipe, during buttocks washing operation or bidet washing, in a system which emits the jet of warm water from the buttocks washing nozzle or the bidet washing nozzle by running water pressure imposed on the inside of the warm water tank. <P>SOLUTION: An air release passage is provided separately from a passage for supplying the warm water in the warm water tank to the buttocks washing nozzle or the bidet washing one. When a seating switch is operated or when a buttocks washing starting command or a bidet washing starting command is issued, a solenoid valve is operated for a predetermined time, so that the warm water can be discharged together with the air, accumulated in the upper portion in the warm water tank, into a toilet bowl from the air vent passage. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

The present invention relates to a warm water washing type toilet seat device in which tap water supplied through a water conduit connected to a tap water pipe is heated by a hot water tank and ejected from a washing nozzle to wash a part of a person seated on the toilet seat. About.

A hot water tank with a built-in heater is provided to store hot water for the hot water toilet seat. This hot water tank is supplied with tap water through an electromagnetic valve and a pressure reducing valve, and injects hot water in the hot water tank from the washing nozzle. It is well known that it is used for local washing of anus, bidet and the like. (For example, refer to Patent Document 1).

JP 2001-98615 A

In the form of this patent document 1, at the time of washing the butt or bidet, by opening the electromagnetic valve and supplying the tap water into the hot water tank, the tap water pressure applied through the hot water tank
A butt washing nozzle or a bidet washing nozzle is advanced, and hot water is ejected from the nozzle opening at the tip.

In order to derive the hot water in the hot water tank, there is provided a hot water outlet pipe standing upright in the hot water tank. This is because, during butt cleaning or bidet cleaning, the solenoid valve is opened to supply tap water to the bottom of the hot water tank, while hot water in the hot water tank is ejected from the butt cleaning nozzle or bidet cleaning nozzle. Alternatively, the hot water outlet pipe is erected so that the cold tap water supplied from the bidet washing nozzle into the hot water tank does not spout and the hot water spouts out.

Air accumulates in the upper part of the hot water tank. This is the case when air flowing into the hot water tank is accumulated through a negative pressure valve provided for safety, or when the air contained in tap water is accumulated by heating the water in the hot water tank. However, in a warm water cleaning toilet seat device in which tap water is supplied into the hot water tank by opening the solenoid valve, at the time of butt cleaning or bidet cleaning, the butt cleaning nozzle or the bidet cleaning nozzle starts to enter the specified position. Air that has accumulated in the upper part of the hot water tank before it moves to the position is ejected from the nozzle mouth of the butt washing nozzle or the bidet washing nozzle through the hot water outlet pipe together with the hot water. For this reason, irregular hot water ejection occurs, thereby causing hot water to scatter, and the user of the hot water washing toilet seat device may experience discomfort.

In the present invention, in view of such points, the above irregularity is provided by providing an air venting function so that air accumulated in the upper part of the hot water tank is not ejected together with the hot water at the time of washing with a butt or bidet. This prevents hot water from splashing due to a hot water jet. As the air venting function, the first technique for removing the air accumulated in the upper part of the hot water tank when sitting on the toilet seat so that it works before the start of washing or before the bidet washing, Provided is a second technique for removing air accumulated in the upper part of the hot water tank, and a third technique that combines the first technique and the second technique.

A first invention is a warm water washing type toilet seat device in which tap water is supplied into a hot water tank by opening a solenoid valve in a state where a seating switch for detecting seating on a toilet seat is operated. When a buttocks cleaning start command or bidet cleaning start command is issued in a state where an air vent passage is provided separately from the passage supplied to the buttocks cleaning nozzle or the bidet cleaning nozzle and the seat switch detects the seating on the toilet seat, Prior to the warm water jetting from the butt washing nozzle or the bidet washing nozzle, the solenoid valve is opened and closed for a predetermined time, so that the hot water together with the air accumulated in the upper part of the hot water tank within the predetermined time is supplied to the air vent passage. It is characterized by discharging into the toilet.

According to a second aspect of the present invention, tap water is supplied into a hot water tank by opening a solenoid valve in a state where a seating switch for detecting seating on a toilet seat is operated, and the hot water is supplied from the butt washing nozzle or the bidet washing nozzle by tap water pressure. In the warm water flush toilet seat device in which warm water in the tank spouts, when the warm water in the warm water tank is provided with an air vent path separately from the path through which the warm water is supplied to the buttocks washing nozzle or the bidet washing nozzle, By opening and closing the electromagnetic valve for a predetermined time, the hot water is discharged from the air vent passage into the toilet together with the air accumulated in the upper part of the hot water tank within the predetermined time.

According to a third aspect of the present invention, there is provided a warm water cleaning toilet seat device in which tap water is supplied into the hot water tank by opening a solenoid valve in a state where a seating switch for detecting seating on the toilet seat is operated. A washing water passage, a bidet washing water passage leading to a bidet washing nozzle, a switching valve for switching whether the warm water in the hot water tank flows into the buttocks washing water passage or the bidet washing water passage, and the buttocks washing water passage; In addition to the bidet washing water passage, an air vent passage for discharging into the toilet is provided, and when either a buttocks washing instruction or a bidet washing instruction is issued while the seating switch is operating, Prior to bidet cleaning, the switching valve opens the air vent passage and the solenoid valve opens for a predetermined time,
Hot water is discharged from the air vent passage together with the air in the hot water tank.

According to a fourth aspect of the present invention, tap water is supplied into the hot water tank when the solenoid valve is opened based on the buttocks washing instruction or the bidet washing instruction with the seat switch detecting the seating on the toilet seat. In a warm water cleaning toilet seat device that ejects hot water in the hot water tank from a cleaning nozzle or a bidet cleaning nozzle, a buttocks cleaning water passage leading to the buttocks cleaning nozzle, a bidet cleaning water passage leading to a bidet cleaning nozzle, and a hot water tank A switching valve that switches between flowing warm water into the buttocks washing water passage or the bidet washing water passage, and an air vent passage that discharges into the toilet separately from the buttocks washing water passage and the bidet washing water passage; In a state before both the cleaning command and the bidet cleaning command are issued, the switching valve is configured so that the buttocks cleaning water passage and the bidet cleaning water passage are provided. The air vent passage is closed, and in this state, when the seating switch detects the seating on the toilet seat, the switching valve opens the air vent passage and the electromagnetic valve opens for a predetermined time so that the air in the hot water tank At the same time, warm water is discharged from the air vent passage.

  The fifth invention is a combination of the first invention and the second invention.

According to the present invention, the air accumulated in the upper part of the hot water tank is discharged together with the hot water from the air vent passage into the toilet, so that the air is ejected from the butt washing nozzle or the bidet washing nozzle at the time of butt washing or bidet washing. It is possible to prevent splashing of hot water due to water, and normal hot water cleaning can be obtained.

It is the perspective view which attached the toilet bowl device with the warm water washing type concerning the present invention to the toilet bowl. It is a top view which shows the internal structure of the main body case and operation part of the warm water washing type toilet seat apparatus of FIG. It is a control circuit diagram of a warm water washing type toilet seat device concerning the present invention. It is a side perspective view of the state which combined nozzle unit NU and washing water change unit SU of the warm water washing type toilet seat device concerning the present invention. It is a back perspective view of the state which combined nozzle unit NU and washing water change unit SU concerning the present invention. It is sectional drawing which cut | disconnects the state which attached the washing water switching unit which concerns on this invention to the lower surface of a warm water tank in the up-down direction, and shows the one part by an expansion. It is sectional drawing which cut | disconnects the nozzle unit NU which concerns on this invention in an up-down direction, and shows the one part enlarged. It is a disassembled perspective view of the washing water switching unit SU which concerns on this invention.

[Example 1]
An embodiment of the present invention will be described first with reference to FIG. 1. Reference numeral 1 denotes a warm water washing type toilet seat device which is detachably installed on a Western-style toilet bowl 2, and a main body case 3 has a rear portion of the toilet seat 4 and an upper surface of the toilet seat 4. The rear portion of the toilet lid 5 is supported by the shaft, and the toilet seat 4 and the toilet lid 5 are pivotally supported so as to be opened and closed in the vertical direction. A water supply pipe 6 protrudes from one side surface of the main body case 3, and a flexible pipe hose 7 is connected to the water supply pipe 6, and the pipe hose 7 supplies clean water via a branch tap 8. It is connected to a water supply pipe 9 such as city water to be supplied.

The main body case 3 integrally projects on one side thereof an operation portion 10 that extends forward along the side surface of the toilet seat 4, and the operation portion 10 constitutes a part of the main body case 3. . The operation unit 10 houses a plurality of switches to be described later operated from the upper surface of the operation unit 10 and LEDs serving as a display unit for displaying an operation state by the switches. The illustrated one has a configuration in which the operation unit 10 is arranged on the side of the toilet seat 4, but when the operation is a remote control system,
The operation unit 10 is a remote controller.

In the configuration shown in the figure, in the main body case 3, as shown in FIG. 2, hot water for cleaning a portion to be cleaned such as an anus or a bidet of a person seated on the toilet seat 4 is created as a main functional component. A hot water tank 13, a water supply pipe 14 connecting the hot water tank 13 and the water supply pipe 6, an electromagnetic valve 11 connected to the water supply pipe 14, a pressure reducing valve 12 connected to the water supply pipe 14, a hot water washing unit 60, A deodorizing mechanism 16 and a substrate 17 to which an electric control circuit is attached are accommodated. The main body case 3 accommodates electric motors 19 and 20 that open and close the toilet seat 4 and the toilet lid 5 in the vertical direction. When the electromagnetic valve 11 is opened in the hot water tank 13, the clean water of the water supply pipe 9 is supplied to the bottom of the hot water tank 13 through the pipe hose 7 and the water supply pipe 14. The water supplied to the hot water tank 13 becomes hot water by the hot water heater 42 disposed in the hot water tank 13.

The deodorizing mechanism 16 is mainly configured by a deodorizing catalyst 24, a deodorizing fan 25, and a fan case 26. The fan case 26 is opened to face the bowl 2A of the Western-style toilet 2, and a first intake hole 27 is opened. And a second intake hole 28 opened in the main body case 3 and an exhaust hole 29 through which the air sucked from these intake holes passes through the deodorizing catalyst 24 and is discharged outside the main body case 3. Yes.

As shown in a partial cross section in FIG. 1, the toilet seat 4 is provided with a toilet seat heater 41 that is insulated and coated on the back side of the toilet seat 4 with an aluminum foil 4 </ b> A, and the toilet seat 4 is heated by the heat generated by the toilet seat heater 41. Is done.

As shown in a partially enlarged view in FIG. 2, the operation unit 10 accommodates an insulating operation board 18 in a horizontal state. Various operation switches and an LED display unit are attached to the operation board 18. It has been. As the operation switches, a buttocks (anal) washing start switch 45, a bidet washing start switch 46, a washing stop switch 44, washing water flow increase / decrease switches 47P and 47Q, a hot water temperature adjustment switch 48 in the hot water tank 13, and a toilet seat by the toilet seat heater 41 And a toilet seat temperature adjustment switch 49 that can change the temperature of the LED 2, and an LED display unit that displays, as an LED display unit, three states of water strength increase / decrease switches 47P and 47Q corresponding to the water pressure increase / decrease switches 47P and 47Q, Corresponding to the adjustment switch 48, an LED 48L for displaying the hot water temperature in three stages of low, medium and high, and an LED 49L for displaying the toilet seat temperature in three stages of low, medium and high corresponding to the toilet seat temperature adjustment switch 49 are provided. The electric motors 19 and 20 for opening and closing the toilet seat 4 and the toilet lid 5 in the vertical direction are turned on.
The switches 23 and 43 to be turned off and the pressing portions thereof are provided in the operation unit 10 like the operation switches.

The upper surface opening of the operation unit 10 is covered with a cover plate in which through holes are formed in the corresponding portions of the switches and LEDs, and the upper surface of the cover plate corresponds to these switches so as to close the through holes. A portion has flexibility, and a portion corresponding to the LED is covered with a translucent film 10F. Therefore, these switches 44, 45, 46, 47P and 47
By pressing the pressing portions 44A, 45A, 46A, 47A and 47B, 48A, 49A of the film 10F corresponding to Q, 48, 49, the corresponding switches are activated. Electric motor 19
The switches 23 and 43 for turning ON / OFF 20 are the same.

As a warm water heater 42 for heating the water in the warm water tank 13, a sheathed heater 42 that generates heat when energized is disposed at the bottom of the warm water tank 13. On the upper wall of the hot water tank 13,
The temperature detecting unit 50 that detects an abnormal temperature in the hot water tank 13 and shuts off the energization circuit to the sheathed heater 42, and detects the cleaning water level (warm water level) in the hot water tank 13 and controls the opening and closing of the solenoid valve 11. And a float switch 51 for controlling the washing water level in the hot water tank 13 to a predetermined level, and a negative pressure valve 52 that communicates the inside of the hot water tank 13 with the outside air when the pressure in the hot water tank 13 becomes lower than the outside air pressure. A mounting portion 54 for the atmospheric pressure adjusting pipe 53 is provided. The hot water tank 13 has an airtight structure so as not to communicate with the outside air except that it communicates with the outside air by the action of the negative pressure valve 52. Further, the warm water temperature in the warm water tank 13 can be set to an arbitrary set temperature by the user using the warm water temperature adjustment switch 48 in the warm water mode. A thermistor 55 for detecting the hot water temperature in the hot water tank 13 is provided to control the energization of the sheathed heater 42 in the hot water mode and maintain the hot water temperature in the hot water tank 13 at the set temperature.

The warm water cleaning unit 60 includes a buttocks cleaning nozzle 61, a bidet cleaning nozzle 62, a buttocks cleaning nozzle nozzle case 63 that accommodates the buttocks cleaning nozzle 61 so as to advance and retract, and a bidet cleaning nozzle 62 that advances and retracts. Switching between switching a nozzle unit NU provided with a nozzle case 64 for a bidet cleaning nozzle accommodated so as to perform an operation, and whether to supply hot water supplied from the hot water tank 13 to the wet cleaning nozzle 61 or the bidet cleaning nozzle 62 The washing water switching unit SU is provided with a valve 66.

Specifically, the nozzle unit NU has a bidet cleaning nozzle 6 directly below the buttocks cleaning nozzle 61.
2 are accommodated in a bottom case nozzle nozzle case 63 and a bidet washing nozzle nozzle case 64 so as to be positioned on a substantially parallel line, and are advanced by tap water pressure applied to the hot water tank 13 as will be described later. It is the structure which operate | moves and ejects warm water from the nozzle openings 61A and 62A of a front-end | tip part. The butt washing nozzle nozzle case 63 and the bidet washing nozzle nozzle case 64 are integrally formed of synthetic resin to form a nozzle case body NC.

The buttocks cleaning nozzle 61 is made of a synthetic resin and has a cylindrical shape such as a cylindrical shape. In the internal passage 61T through which hot water as cleaning water passes, the pressure of the cleaning water gradually increases toward the nozzle port 61A at the tip. Thus, the cross-sectional area S1 is formed so as to gradually decrease toward the tip. The bidet cleaning nozzle 62 is made of a synthetic resin and has a cylindrical shape such as a cylindrical shape like the buttocks cleaning nozzle 61, and the internal passage 62 </ b> T through which hot water as cleaning water passes is a nozzle port 62 at the tip.
The cross-sectional area S2 is gradually reduced toward the tip so that the pressure of the cleaning water gradually increases toward A. Butt cleaning nozzle 61 and bidet cleaning nozzle 62
Since a common cylindrical nozzle configuration can be adopted except for the tip of the nozzle by making the nozzle case 63 for the buttocks cleaning nozzle and the nozzle case 64 for the bidet cleaning nozzle common, it is possible to share parts as a whole. As a result, the assembly can be facilitated and the cost can be reduced.

At the rear end of the nozzle unit NU, hot water supplied from the washing water switching unit SU is introduced into the hot water introduction part 63B introduced into the buttocks washing nozzle nozzle case 63 and the bidet washing nozzle nozzle case 64, respectively. The hot water introduction part 64B is formed. Specifically, the introduction part cover 86 formed with the warm water introduction part 63B and the warm water introduction part 64B, and the attachment member 87 so as to cover the introduction part cover 86 are attached to the rear end of the nozzle case body NC with screws 88. It is attached. As a result, the inlet opening at the rear end of the buttocks cleaning nozzle nozzle case 63 is in communication with the hot water introducing portion 63B, and the bidet cleaning nozzle nozzle case 64 is connected.
The inlet opening at the rear end is in communication with the hot water inlet 64B.

The attachment member 87 is formed with an attachment portion 87A for fixing the nozzle unit NU to a fixed substrate (not shown) in the main body case 3 with screws 89. If a portion to be fixed to the fixed substrate with the screw 89 can be formed in the introduction portion cover 86, the attachment member 87 is not necessary.

In the bowl 2A of the western-style toilet 2, both the upper and lower posterior washing nozzles 61 and the bidet washing nozzle 62 are arranged so as to advance and retreat toward the front diagonally downward, and the toilet seat 4 and the toilet lid 5 are disposed in the main body case 3. In the state of attaching, the buttocks washing nozzle 61 and the bidet washing nozzle 62 are arranged on the center line in the front-rear direction, which is the center line between the left and right sides of the toilet seat 4. For this reason, the toilet seat 4 and the toilet lid 5
In a state where the main body case 3 attached with the urine is set at a predetermined position on the western toilet 2, a hot water jet from right below or just below the rear part of the person to be cleaned such as an anus or bidet of the person sitting on the toilet seat 4 can get.

For this reason, in the state where the tap water pressure is not applied, the buttocks cleaning nozzle 61 is kept in the retracted state in the buttocks cleaning nozzle nozzle case 63 by the coil spring 65A.
When the tap water pressure is applied, the tap water pressure is received by the water receiving portion 61B of the annular flange formed at the rear end of the butt washing nozzle 61, and the butt washing nozzle 61 advances while compressing the coil spring 65A. The packing 61P attached to the portion 61B comes into contact with the stop portion 63A in the nozzle case 63 for the cleaning nozzle, and its advancement stops, and this position becomes a predetermined advance position.

On the other hand, when the tap water pressure is not applied to the bidet cleaning nozzle 62, the bidet cleaning nozzle 62 is kept in the bidet cleaning nozzle nozzle case 64 by the coil spring 65B, and the tap water pressure is applied. The above-mentioned tap water pressure is the bidet washing nozzle 6
2, the bidet cleaning nozzle 62 advances while compressing the coil spring 65 </ b> B, and the packing 62 </ b> P attached to the water receiving portion 62 </ b> B is placed in the nozzle case 64 for the bidet cleaning nozzle. The stop portion 64A comes into contact with the stop portion 64A to stop its advancement, and this position becomes a predetermined advance position.

The washing water switching unit SU includes an electric motor 67 that rotationally drives the switching valve 66, a synthetic resin valve chamber member 70 that forms a valve chamber 69 that houses the switching valve 66, and a buttocks washing water that is switched by the switching valve 66. A synthetic resin switching passage member 73 in which the passage 71 and the bidet washing water passage 72 are formed is joined and integrated by a screw 74. As a result, the valve chamber 69 is kept in a watertight state.

In order to derive the hot water in the hot water tank 13, a hot water outlet pipe 15 erected substantially vertically in the hot water tank 13 is provided. The upper end opening 15 </ b> A (the hot water outlet of the hot water tank 13) of the hot water outlet pipe 15 is located with a slight gap between the upper wall of the hot water tank 13. In the illustrated example, the upper wall in the hot water tank 13 is slightly swelled upward, and the upper end opening 15A is located near the upper wall. When the solenoid valve 11 is opened in the hot water tank 13, the clean water of the water supply pipe 9 is supplied to the bottom of the hot water tank 13 through the pipe hose 7 and the water supply pipe 14, and heated by the hot water heater 42. It becomes. The hot water level (washing water level) in the hot water tank 13 is controlled by opening and closing the electromagnetic valve 11 by the float switch 51 to control the hot water level (washing water level) in the hot water tank 13 to a predetermined level. This predetermined level is
The level is slightly lower than the upper end opening 15A of the hot water outlet pipe 15 (the hot water outlet of the hot water tank 13).

As will be described later, when the cleaning mode is set, hot water in the hot water tank 13 is spouted from the buttocks cleaning nozzle 61 or the bidet cleaning nozzle 62 while supplying clean water to the hot water tank 13 into the hot water tank 13. In this case, the clean water which is not warm water is the buttocks washing nozzle 61 or the bidet washing nozzle 6.
The hot water outlet pipe 15 is erected so as not to eject from 2.

The switching valve 66 is supported by the drive shaft 68 of the electric motor 67 and accommodated in the valve chamber 69 so as to perform forward / reverse rotation on the horizontal axis. The valve chamber member 70 is connected to a hot water introduction port 69B formed in an upper wall of the valve chamber member 70 at a lower end of the hot water outlet pipe 15 so that the hot water flowing down in the hot water outlet pipe 15 flows from the hot water introduction port 69B to the valve chamber. Flows into 69.

The drive shaft 68 of the electric motor 67 may be formed only by the shaft 68 </ b> A extending from the rotor of the electric motor 67. However, due to the versatility of the electric motor 67, the drive shaft 68 of the electric motor 67 extends from the rotor of the electric motor 67. The shaft 68A is composed of a synthetic resin auxiliary shaft 68B fitted and integrated therewith. As shown in FIG. 6, the drive shaft 68 of the electric motor 67 penetrates the switching passage member 73 in a sealed state by a seal packing 76 so that hot water does not leak, and a switching valve 66 is attached to the tip of the switching passage member 73. The electric motor 67 performs a stepping operation by a pulse output of the control circuit 30 described later, and is also referred to as a stepping motor.

In consideration of ease of assembly and repair / replacement, the switching valve 66 is provided with the drive shaft 6 of the electric motor 67.
8 is attached by fitting from the left side in FIG. 6 (from the right side in FIG. 8). The flow of hot water switched by the switching valve 66 is switched between a state in which the valve passage 66A penetrating the switching valve 66 communicates with the buttocks washing water passage 71 and a state in which the valve passage 66A communicates with the bidet washing water passage 72. The switching valve 66 needs to be pressed against the switching passage member 73. For this reason, in order that the switching valve 66 can be rotated and its support is stabilized, a configuration is adopted in which the switching valve 66 is held toward the drive shaft 68 by the pressing force of the coil spring 79. Specifically, the opposite side of the switching valve 66 from the drive shaft 68 is a support shaft 77 that protrudes from the side wall (left wall in FIG. 6) of the valve chamber 69 toward the drive shaft 68 and a support that protrudes from the switch valve 66. By a coil spring 79 loosely fitted to the shaft 78,
The switching valve 66 is held by the pressing force toward the drive shaft 68 side, and the forward / reverse rotation operation by the electric motor 67 is smoothly performed.

As described above, the washing water switching unit SU has a configuration in which the electric motor 67, the valve chamber member 70, and the switching passage member 73 are coupled and integrated by the screws 74. In this integrated state, the washing water switching unit SU is fixed to the bottom surface of the hot water tank 13 with screws 80, and in this state, the lower end of the hot water outlet pipe 15 is connected to the hot water inlet 69B of the valve chamber 69. Is done. A packing 81 is provided to prevent hot water from the communication connection portion.

Moreover, in order to prevent warm water from leaking from the joint between the valve chamber member 70 and the switching passage member 73 by this integration, the joint is sealed with a rubber seal packing 82. Further, in the state where the flow of warm water is switched to the buttocks washing water passage 71 by the switching valve 66, the warm water is prevented from entering the bidet washing water passage 72, and the warm water flow is switched to the bidet washing water passage 72. In such a state, rubber seal packings 83 </ b> A and 83 </ b> B are attached to the entrance periphery of the buttocks washing water passage 71 and the bidet washing water passage 72 in order to prevent warm water from entering the buttocks washing water passage 71. . Accordingly, when the switching valve 66 is pushed toward the switching passage member 73 by the coil spring 79, one surface of the switching valve 66 is pressed against the seal packings 83A and 83B. The flow is switched to the buttocks washing water passage 71 and the bidet washing water passage 72 and rotated.

In addition, when one surface of the switching valve 66 is in pressure contact with the seal packings 83A and 83B, the switching valve 66 stabilizes the operation of switching between the washing water passage 71 and the bidet washing water passage 72 by switching the flow of hot water. For this reason, rubber contact members 85A, 85B, 84B, 84B, 84B of the switching passage member 73 are formed so as to be flush with the seal packings 83A, 83B, respectively.
85B is fitted.

The hot water cleaning unit 60 is connected to the hot water passage between the nozzle unit NU and the cleaning water switching unit SU, and the outlet portion 71A of the buttocks cleaning water passage 71 is connected to the hot water introduction portion 63B by a flexible pipe 75A. ing. Further, the bidet washing water passage 72 has an outlet portion 72A connected to the hot water introduction portion 64B through a flexible pipe 75B. As described above, the washing water switching unit SU is fixed to the bottom surface of the hot water tank 13 by the screws 80, and the hot water tank 13 is fixed to the fixed substrate in the main body case 3 by screws or the like. In addition, the nozzle unit NU is fixed to a fixed substrate in the main body case 3 by screws 89, and the butt washing nozzle 61 and the bidet washing nozzle 62 are placed at predetermined positions on the front-rear direction center line that is the center line between the left and right sides of the toilet seat 4. Kept. In this way, the hot water cleaning unit 60 is set at a predetermined position.

FIG. 3 shows a configuration of a control circuit 30 serving as a control means. A control unit 32 mainly composed of a microcomputer is connected to a commercial power source 31, and the operation board 18 is connected to an input circuit of the control unit 32. Are connected to the input circuit of the control unit 32, a seat switch 33 for detecting the seating on the toilet seat 4, a toilet seat temperature sensor 35 for detecting the temperature of the toilet seat 4, a float switch 51, and the hot water tank 13. A thermistor 55 for detecting the temperature of the hot water inside is connected.
The seat switch 33 includes a switch that operates when the toilet seat 4 is lowered by the weight when a person is seated on the toilet seat 4, and an infrared switch that detects a person seated on the toilet seat 4 with infrared rays.

The control unit 32 includes a timer, a memory, and the like, and is a microcomputer control system that performs a predetermined operation according to a predetermined program. The commercial power supply 31 is connected to switching elements 21, 22, 36, 37, 38, 39, and 40 that operate according to the output of the control unit 32.
The opening / closing electric motor 19 for the toilet seat 4, the opening / closing electric motor 20 for the toilet lid 5, the toilet seat heater 41, the hot water heater 42 for heating the water in the hot water tank 13, the electric motor 67 for driving the switching valve 66 (also referred to as a washing motor 67), and deodorization. The fan 25 and the solenoid valve 11 are connected.

In the standby state, the temperature detecting unit 50 whose contact is normally closed is opened when an abnormal temperature in the hot water tank 13 is detected, and the energization of the hot water heater 42 is interrupted. The hot water tank 13
As for the water inside, the control unit 32 operates by sensing the temperature of the thermistor 55, the switching element 37 performs ON / OFF operation of energization of the hot water heater 42, and the hot water temperature is maintained in a predetermined temperature range. The hot water level in the hot water tank 13 (washing water level) is controlled by the switching element 40 to open and close the solenoid valve 11 by detection of the float switch 51, and the hot water level in the hot water tank 13 (washing water level) is controlled to a predetermined level. To do. This predetermined level is the hot water outlet pipe 1
5 is slightly lower than the upper end opening 15A (the hot water outlet of the hot water tank 13).

In the standby state, the switching valve 66 has surfaces other than the valve passage 66A of the switching valve 66 on the seal packings 83A and 8 at the peripheral edges of the buttocks washing water passage 71 and the bidet washing water passage 72.
As a result, the switching valve 66 is in contact with the butt washing water passage 71 so that the inside of the hot water tank 13 does not communicate with either the butt washing water passage 71 or the bidet washing water passage 72.
The inlet of the bidet washing water passage 72 is closed, and the valve passage 66A does not communicate with either the buttocks washing water passage 71 or the bidet washing water passage 72, and is in a blocked state.

In such a standby state, when the switch 43 is turned on, the control unit 32 opens the toilet lid 5 upward by the electric motor 20. When the seating switch 33 detects the seating of the human body on the toilet seat 4, the switching element 39 is energized to rotate the deodorizing fan 25. In this sitting state, when the buttocks (anal) cleaning start switch 45 is pressed and a buttocks (anal) cleaning command is issued, or when the bidet cleaning start switch 46 is pressed and a bidet cleaning command is issued, the control unit 32.
Appropriately operates the switching elements 38 and 40, and the switching valve 6 is operated by the operation of the washing motor 67.
6 is rotated and the solenoid valve 11 is opened. When the solenoid valve 11 is opened, the water pressure from the water pipe 9 through the water supply pipe 14 is applied to the hot water tank 13, and the hot water is supplied to the bottom of the hot water tank 13 while the hot water in the hot water tank 13 is supplied. Is the upper end opening 15A of the hot water outlet pipe 15.
The water flows out from the hot water outlet 13 from the hot water tank 13 to the hot water outlet pipe 15 and is supplied to the valve chamber 69.

In this case, when the buttocks (anal) cleaning start switch 45 is pressed, the cleaning motor 6
7, the switching valve 66 is connected to the seal packing 83A, 83B and the contact members 85A, 85B.
The washing motor 67 stops in a state where the valve passage 66A of the switching valve 66 communicates with the buttocks washing water passage 71. As a result, the hot water supplied to the valve chamber 69 by the water pressure of the clean water passes through the valve passage 66A and the buttocks washing water passage 71, and flows from the outlet portion 71A through the flexible pipe 75A into the hot water introduction portion 63B. . The water pressure of the hot water flowing into the hot water introduction part 63B acts on the water receiving part 61B of the butt washing nozzle 61 in the retracted position (position shown in FIG. 7) by the coil spring 65A, and compresses the coil spring 65A while compressing the butt washing nozzle 61. The packing 61P comes into contact with the stop portion 63A, and the advancement stops. At this advanced position, the hot water as the washing water passes through the center hole of the water pressure receiving portion 61B and the inside of the washing nozzle 61 The buttocks (anus) are washed by warm water flowing into the passage 61T and ejecting from the nozzle port 61A at the tip.

Then, when the cleaning stop switch 44 is pressed and turned on, the control unit 32 operates,
The switching elements 38 and 40 are operated to return the switching valve 66 to the standby position by the operation of the washing motor 67 and close the electromagnetic valve 11. When the solenoid valve 11 is closed, the water pressure of the clean water is not applied to the hot water tank 13, and the jet of hot water from the nozzle port 61A is stopped, and the butt washing nozzle 61 is moved into the butt washing nozzle nozzle case 63 by the coil spring 65A. To the state of being retracted (position shown in FIG. 7).

Further, in the above, when the bidet cleaning start switch 46 is pressed instead of the buttocks (anal) cleaning start switch 45, the switching motor 66 is actuated by the operation of the cleaning motor 67 and the seal packings 83A and 83B and the contact member 85A. , 85B in contact with the switching valve 6
The washing motor 67 stops in a state where the six valve passages 66A communicate with the bidet washing water passage 72. Thus, the hot water supplied to the valve chamber 69 by the water pressure of the clean water passes through the valve passage 66A and the bidet washing water passage 72, and from the outlet portion 72A through the flexible pipe 75B, the hot water introduction portion 64B.
Flow into. The water pressure of the hot water flowing into the hot water introduction part 64B acts on the water receiving part 62B of the bidet washing nozzle 62 in the retracted position by the coil spring 65B, and advances the bidet washing nozzle 62 while compressing the coil spring 65B. The abutment stops against the stop portion 64A (the position shown in FIG. 7), and the hot water that is the wash water is the water pressure receiving portion 62 at the advanced position.
B passes through the central hole B and flows into the internal passage 62T of the bidet cleaning nozzle 62, and the nozzle port 6 at the tip
The bidet is washed with warm water spouted from 2A.

Then, when the cleaning stop switch 44 is pressed and turned on, the control unit 32 operates,
The switching elements 38 and 40 are operated to return the switching valve 66 to the standby position by the operation of the washing motor 67 and close the electromagnetic valve 11. When the solenoid valve 11 is closed, the water pressure of the clean water is not applied to the hot water tank 13, and the jet of hot water from the nozzle port 62A is stopped, and the bidet cleaning nozzle 62 is made into the bidet cleaning nozzle nozzle case 64 by the coil spring 65B.
It returns to the state retracted inside (the same state as the state where the buttocks cleaning nozzle 61 is retracted).

As is apparent from the above, the butt washing nozzle 61 and the bidet washing nozzle 62 are accommodated in separate nozzle cases 63 and 64 so as to advance and retreat, respectively, and are arranged vertically so that the tap water pressure applied to the hot water tank 13 is increased. The nozzles 61 are moved forward by the nozzle ports 61 at the front ends.
Since it is the structure which spouts warm water from A and 62A, it becomes possible to obtain a warm water spout from the lower part or the rear part directly below the area to be cleaned such as an anus or a bidet. The problem of scattering and the problem that the hot water that has washed the butt when washing the butt is applied to the nozzle port 62A at the tip of the bidet washing nozzle 62 are also solved, and a preferred jet form that can keep the bidet washing nozzle hygienic can be achieved.

In addition, since the buttocks cleaning nozzle 61 and the bidet cleaning nozzle 62 are configured to perform advance / retreat operation with water pressure instead of performing the advance / retreat operation with a motor, the operation of both nozzles and the structure for achieving it are shared. It becomes possible to be simple in terms of structure and operation.

Furthermore, in the present invention, the washing water switching unit SU is arranged so that the hot water outlet at the lower end of the hot water outlet pipe 15 standing in the hot water tank 13 communicates with the hot water inlet 69B of the valve chamber 69 that houses the switching valve 66. Is attached to the lower surface of the hot water tank 13, so that the hot water in the hot water tank 13 directly flows into the valve chamber 69 from the hot water outlet pipe 15, and the hot water in the hot water tank 13 is replaced with the washing water switching unit SU. The pipe for guiding to the water becomes unnecessary, and the washing water switching unit SU is attached to the hot water tank 13 to achieve an integrated configuration.

In the warm water washing type toilet seat device according to the present invention, tap water is supplied into the hot water tank 13 by opening the solenoid valve 11 in a state in which the seat switch 33 for detecting seating on the toilet seat 4 is operated, The warm water in the warm water tank 13 is ejected from the buttocks washing nozzle 61 or the bidet washing nozzle 62. In such a warm water washing toilet seat device, air accumulates in the upper part of the warm water tank 13. For example, when air accumulates through the negative pressure valve 52 provided for safety, or when air contained in tap water accumulates due to heating of the water in the hot water tank 13, the butt is washed during butt washing or bidet washing. Between the time when the cleaning nozzle 61 or the bidet cleaning nozzle 62 starts to advance to the time when the cleaning nozzle 61 or the bidet cleaning nozzle 62 advances to a predetermined advance position, this air is heated together with the hot water through the hot water outlet pipe 15 and the nozzle port 61A of the butt cleaning nozzle 61 or the bidet cleaning nozzle 62. Nozzle port 62 </ b> A is sent out, and irregular hot water jets occur, causing the hot water to scatter, thereby causing the user of the hot water flush toilet seat device 1 to feel uncomfortable.

Further, as shown in the figure, when tap water pressure is applied, the buttocks cleaning nozzle 61 is advanced by the tap water pressure, while the weir cleaning nozzle 61 is advanced while compressing the coil spring 65A, and the water receiving portion 61B of the annular flange. The packing 61P comes into contact with the stop portion 63A in the nozzle case 63 and reaches a predetermined advance position. From the start of advancement until the advancement to the predetermined advance position, from the nozzle opening 61A at the tip portion. The phenomenon that the warm water comes out irregularly occurs.
Also, in the bidet cleaning, as shown in the figure, when the tap water pressure is applied, the bidet cleaning nozzle 62 moves forward while compressing the coil spring 65B when the bidet cleaning nozzle 62 is advanced by the tap water pressure. The packing 62P of the water receiving portion 62B of the flange comes into contact with the stop portion 64A in the nozzle case 64 to reach a predetermined advance position, but the tip from the start of advancement to the advancement position A phenomenon occurs in which hot water is irregularly discharged from the nozzle opening 62A of the portion.

In the present invention, in order to eliminate such a phenomenon, the warm water cleaning unit 60 is provided with an air venting function. As this air venting function, the first technique for removing air accumulated in the upper part of the hot water tank 13 at the start of the buttocks washing or the bidet washing and the air accumulated in the upper part of the hot water tank 13 when seated on the toilet seat 4 And a third technique that combines the first technique and the second technique.

First, in order to achieve the first technique, the second technique, and the third technique, the hot water cleaning unit 60 is configured so that the hot water in the hot water tank 13 flows into the washing water switching unit SU.
In addition to the passage supplied to the 1 or bidet washing nozzle 62, an air vent passage 90 is provided. As described above, in the standby state, the switching valve 66 is connected to the valve passage 66A of the switching valve 66.
The seal packing 8 around the entrance edge of the buttocks washing water passage 71 and the bidet washing water passage 72
3A and 83B, the switching valve 66 closes the entrance of the buttocks washing water passage 71 and the bidet washing water passage 72, and the valve passage 66A communicates with both the buttocks washing water passage 71 and the bidet washing water passage 72. It is a state that does not.

In the switching passage member 73, the hot water in the hot water tank 13 is a passage different from the passage through which the warm water in the warm water tank 13 is supplied to the buttocks washing nozzle 61 or the bidet washing nozzle 62. The air vent passage 90 is formed. This air vent passage 90
Passes through the contact member 85B, passes through the switching passage member 73, and reaches the outlet 90A. In the state where the flexible pipe 91 is connected to the outlet portion 90A and the hot water cleaning unit 60 is set at a predetermined position, the outlet of the flexible pipe 91 is below the nozzle unit NU, that is, in the retracted state. Below the nozzle ports 61A and 62A of the cleaning nozzle 61 and the bidet cleaning nozzle 62, the bowl 2A of the western toilet 2 (the portion where the drainage port of the toilet 2 is formed) is kept facing. In the standby state before the switching valve 66 operates, the switching valve 66 is connected to the valve passage 66.
Surfaces other than A abut against the abutting member 85B, block the inlet of the air vent passage 90, and the valve passage 66A.
Is not in communication with the air vent passage 90. For this reason, in the standby state before the switching valve 66 is activated, the switching valve 66 is in a state where the buttocks washing water passage 71, the bidet washing water passage 72, and the air vent passage 90 are closed.

First, the air vent function of the first technique will be described. This is to remove the air accumulated in the upper part of the hot water tank 13 at the start of the buttocks cleaning or the bidet cleaning. By the way, when the seating switch 33 is not operating, that is, when the seating on the toilet seat 4 is not detected by the user and the seating is not detected, the solenoid valve 1 even if the buttocks (anus) cleaning start switch 45 is pressed.
1 does not open, and the solenoid valve 11 does not open even when the bidet cleaning start switch 46 is pressed. This is because when the seating switch 33 does not detect the seating, when the urine (anal) cleaning start switch 45 or the bidet cleaning start switch 46 is inadvertently pressed, hot water is discharged from the butt cleaning nozzle 61 or the bidet cleaning nozzle 62. This is to prevent eruption.

When the air vent function of the first technology of the present invention is not provided, as described above, the seating switch 3
3 is detected to be seated on the toilet seat 4, the buttocks (anal) washing start switch 45 is pressed or the bidet washing start switch 46 is pushed, and a buttocks (anus) washing command or bidet washing command is issued. When emitted, the control unit 32 switches the corresponding switching element 38.
, 40 are operated appropriately, the switching valve 66 is driven to rotate by the operation of the cleaning motor 67, and the electromagnetic valve 11 is opened, and hot water is ejected from the butt cleaning nozzle 61 or the bidet cleaning nozzle 62.

By providing the air venting function of the first technique of the present invention, the buttocks (anus) washing start switch 45 is pushed in the state where the seating switch 33 detects the seating on the toilet seat 4, and the buttocks washing start command When the bidet cleaning start switch 46 is pressed and a bidet cleaning start command is issued, the control is performed prior to the hot water jet from the buttocks cleaning nozzle 61 or the bidet cleaning nozzle 62, which is normally performed. The unit 32 operates the switching element 40 to open and close the electromagnetic valve 11 for a predetermined time, and also rotates the switching valve 66 by the operation of the cleaning motor 67 so that the valve passage 66A opens the inlet of the air vent passage 90. To turn.
When the electromagnetic valve 11 is opened, the water pressure from the water pipe 9 through the water supply pipe 14 is applied to the hot water tank 13, and the hot water is supplied to the bottom of the hot water tank 13 while the hot water tank 1.
3 flows out from the upper end opening 15A of the hot water outlet pipe 15 (the hot water outlet of the hot water tank 13) to the hot water outlet pipe 15 and is supplied to the valve chamber 69. The air and hot water supplied to the valve chamber 69 pass through the valve passage 66A and the air vent passage 90 which are in communication with each other, and the outlet portion 90
A so-called air venting operation is performed in which A is discharged into the bowl 2 </ b> A of the western toilet 2 through the flexible pipe 91. This air venting operation is performed within the predetermined time.

When the predetermined time elapses, the solenoid valve 11 is closed, and the switching motor 66 is reversely driven by the washing motor 67 so as to return to the standby position.
Block the entrance of zero. Subsequent to this operation, that is, following the opening / closing operation of the electromagnetic valve 11 and the closing of the air vent passage 90 by the switching valve 66, the control unit 32 appropriately operates the corresponding switching elements 38, 40, and the washing motor. The switching valve 66 is reactivated.
, And the solenoid valve 11 is opened, and as described above, the butt washing nozzle 61 or the bidet washing corresponding to the washing start command for the normal washing operation according to the butt washing start command or the bidet washing start command as described above. Hot water is ejected from the nozzle 62. In this state, the switching valve 66 is in a state where the inlet of the air vent passage 90 is blocked.

As described above, when the electromagnetic valve 11 is opened for a predetermined time, the air and hot water in the upper part of the hot water tank 13 are discharged. If this discharge time becomes longer, extra hot water in the hot water tank 13 is discharged. In addition, the buttocks (anal) washing start switch 45 or the bidet washing start switch 4
Since the waiting time from the time when 6 is pressed to the hot water jetting becomes longer, this time should be shorter.

Next, the air vent function of the second technique will be described. This is an air venting operation for removing the air accumulated in the upper part of the hot water tank 13 when the seat switch 33 detects that the user has been seated on the toilet seat 4. When seating on the toilet seat 4 is detected by the seating switch 33,
Accordingly, the control unit 32 operates, the switching element 40 operates, and the electromagnetic valve 11 opens and closes for a predetermined time. At the same time, the switching valve 66 opens and closes the inlet of the air vent passage 90 by the forward rotation and the reverse rotation of the cleaning motor 67. That is, the valve passage 66A of the switching valve 66 and the air vent passage 90 communicate with each other and the electromagnetic valve 11 is opened, so that the water supply pipe 1 is connected to the water supply pipe 1.
4, the pressure of clean water is applied to the warm water tank 13, and clean water is supplied to the bottom of the warm water tank 13, while the upper air and warm water in the warm water tank 13 are connected to the upper end opening 1 of the warm water outlet pipe 15.
The water flows out from 5A (the warm water outlet of the warm water tank 13) to the warm water outlet pipe 15 and is supplied to the valve chamber 69. Then, the hot water and the air supplied to the valve chamber 69 are in communication with each other in the valve passage 66A.
And the air vent passage 90, the flexible pipe 91 through the outlet portion 90 </ b> A, and the air vent operation to be discharged into the bowl of the western toilet 2 is achieved.

Then, in the state where the seating switch 33 detects the seating on the toilet seat 4, the buttocks (anal) washing start switch 45 is pushed or the bidet washing start switch 46 is pushed, and the buttocks (anus) washing command or When the bidet cleaning command is issued, as described above, the control unit 3
2, the switching elements 38 and 40 corresponding thereto are appropriately operated, and the switching motor 66 is driven to rotate by the operation of the cleaning motor 67, and the electromagnetic valve 11 is opened, and hot water is supplied from the buttocks cleaning nozzle 61 or the bidet cleaning nozzle 62. The normal operation of ejecting is performed. In this state, the switching valve 66 is in a state where the inlet of the air vent passage 90 is blocked.

As described above, when the electromagnetic valve 11 is opened for a predetermined time, the hot water is discharged together with the air in the upper part of the hot water tank 13, but if this discharge time is lengthened, extra hot water in the hot water tank 13 is discharged. Therefore, this time should be short. In the first technique, since the butt (anal) cleaning start switch 45 or the bidet cleaning start switch 46 is pressed and the air venting operation is performed, until the hot water as the cleaning water in the normal cleaning operation hits the buttocks or the bidet This time becomes longer accordingly. However, there is no problem in the air venting operation of the second technique, and the time from when the buttocks (anal) washing start switch 45 or the bidet washing start switch 46 is pressed until the warm water as washing water hits the buttocks or the bidet is This is shorter than the case of the first technique and becomes a normal operation time.

Next, the air vent function of the third technique will be described. This is an air venting operation by a combination of the first technique and the second technique. For this reason, tap water is supplied into the hot water tank 13 by opening the solenoid valve 11 in a state where the seat switch 33 for detecting seating on the toilet seat 4 is operated, and the butt washing nozzle 61 or the bidet washing nozzle 62 depending on the tap water pressure. In the warm water flush toilet seat device 1 from which the hot water in the hot water tank 13 is ejected, when the seating switch 33 detects the seating, the solenoid valve 11 is opened and closed for a predetermined time, as in the second technique.
The switching valve 66 opens and closes the inlet of the air vent passage 90 by the forward rotation and the reverse rotation of the cleaning motor 67. A first air venting operation is performed so that the hot water together with the air accumulated in the upper part of the hot water tank 13 within this predetermined time is discharged from the air vent passage 90 into the toilet 2. As in the first technique, in the state where the seating switch 33 detects seating,
When the buttocks (anal) cleaning start switch 45 is pressed and a buttocks cleaning start command is issued,
Alternatively, when the bidet cleaning start switch 46 is pressed and a bidet cleaning start command is issued,
The electromagnetic valve 11 is opened and closed for a predetermined time, and the cleaning motor 67 is rotated forward and backward.
The switching valve 66 opens and closes the inlet of the air vent passage 90. Thus, the second air venting operation is performed so that the hot water together with the air accumulated in the upper part of the hot water tank 13 within this predetermined time is discharged from the air vent passage 90 into the toilet bowl 2.

Such an air venting operation is performed by the operation of the control unit 32, the switching element 40 is operated, the electromagnetic valve 11 is opened and closed for a predetermined time, and the electromagnetic valve 11 is opened for the predetermined time. 14, the pressure of clean water is applied to the warm water tank 13, and clean water is supplied to the bottom of the warm water tank 13, while the upper air and warm water in the warm water tank 13 are connected to the upper end opening 15 </ b> A of the warm water outlet pipe 15. Hot water outlet pipe 1 from the hot water outlet of the hot water tank 13
5 is supplied to the valve chamber 69. The air and hot water supplied to the valve chamber 69 pass through the valve passage 66A and the air vent passage 90 which are in communication with each other, pass through the flexible pipe 91 from the outlet portion 90A, and are vented into the bowl of the western toilet 2. Operation is achieved.

Thus, the first air venting operation is performed when the seating switch 33 detects the seating, and while the seating switch 33 detects the seating, the buttocks (anus) washing start switch 45 is pressed. When a buttocks cleaning start command is issued, or when a bidet cleaning start switch 46 is pressed and a bidet cleaning start command is issued, a second air venting operation is performed. In the case where the time from when the first air venting operation is performed to when the second air venting operation is performed is long, even if air accumulates again in the hot water tank 13, the air is removed by the second air venting operation. Thus, the conventional problems are solved and the object of the present invention is achieved.

On the other hand, if the time from the first air venting operation to the second air venting operation is short, the amount of air that accumulates again in the hot water tank 13 is very small or hardly accumulated. By shortening the time for removing air by the second air venting operation or not performing air venting, the conventional problem is solved and the object of the present invention is achieved.

When the time from the first air venting operation to the second air venting operation being short, the amount of air that accumulates again in the hot water tank 13 becomes extremely small, so that the air is removed by the second air venting operation. The time to remove can be short. For this reason, if the time from the first air venting operation to the second air venting operation being less than the set predetermined time T1, the second air venting operation time is shortened and the second air venting operation is performed. After operation
Transition to normal washing operation with washing water.

That is, after the first air venting operation is performed, the buttocks (anus) washing start switch 45
If the time until the buttocks cleaning start command is issued or the bidet cleaning start switch 46 is pressed and the bidet cleaning start command is issued is equal to or longer than the predetermined time T1, the buttocks (anal) cleaning start switch 45 Is pressed and a washing start command is issued, or when the bidet washing start switch 46 is pushed and a bidet washing start command is issued, the control unit 32
Thus, the opening / closing operation time of the electromagnetic valve 11 and the forward / reverse rotation time of the cleaning motor 67 are set as the normal air venting operation time Q1, and after the operation time Q1, the control unit 32 controls the switching element 38,
40 is operated appropriately, and the switching valve 66 is rotationally driven by the reactivation of the cleaning motor 67 and the electromagnetic valve 11 is opened again. As described above, in response to the buttocks cleaning start command or the bidet cleaning start command, Warm water is ejected from the butt washing nozzle 61 or the bidet washing nozzle 62 to perform a normal washing operation.

Also, after the first air venting operation is performed, the buttocks (anal) cleaning start switch 45
If the time until the buttocks cleaning start command is issued or the bidet cleaning start switch 46 is pressed and the bidet cleaning start command is issued is less than the predetermined time T1, the buttocks (anus) cleaning start switch 45 Is pressed and a washing start command is issued, or when the bidet washing start switch 46 is pushed and a bidet washing start command is issued, the control unit 32
The operation time Q2 is shorter than the operation time Q1 by the above operation time, and after the operation time Q2,
The control unit 32 operates the switching elements 38 and 40 as appropriate to rotate the switching valve 66 by re-operation of the cleaning motor 67 and the electromagnetic valve 11 is opened again. In response to the cleaning start command, warm water is ejected from the buttocks cleaning nozzle 61 or the bidet cleaning nozzle 62 to perform a normal cleaning operation. This method is effective when the amount of air accumulated in the hot water tank 13 is very small within the set predetermined time T1.
As a result, the air in the hot water tank 13 is exhausted by the first air venting operation, and the second air venting operation time can be shortened, so that the wash water is discharged after the butt washing start command or the bidet cleaning start command is issued. The waiting time is shortened and there is almost no inconvenience to the user.

In the above case, if the time from when the first air venting operation is performed until the buttocks cleaning start command is issued or the bidet cleaning start command is issued is less than the predetermined time T1, the second air venting operation is performed. Although the operation time Q2 is shorter than the operation time Q1, instead of this, the time from when the first air venting operation is performed until the buttocks cleaning start command is issued or the bidet cleaning start command is issued, If it is less than the predetermined time T1, the switching element 38, 40 is immediately actuated appropriately by the controller 32 without performing the second air venting operation, and the switching valve 66 is rotationally driven by the operation of the cleaning motor 67. With solenoid valve 1
1 opens, and in response to the buttocks cleaning start command or the bidet cleaning start command, the buttocks cleaning nozzle 6
Warm water can be ejected from one or the bidet cleaning nozzle 62 to perform a normal cleaning operation. This method is effective when air does not accumulate or hardly accumulates in the hot water tank 13 within the set predetermined time T1. As a result, the hot water tank 1
Since the air in 3 is discharged by the first air venting operation, the waiting time until the washing water comes out after the butt washing start command or the bidet washing start command is issued is not inconvenient for the user. No more giving.

Further, as described above, when the time from the first air vent operation to the second air vent operation is extremely short, finer control is performed in the control that does not perform the second air vent operation. be able to. That is, as described above, the time from when the first air venting operation is performed until the second air venting operation is performed is the first predetermined time T1.
If it is above, when the buttocks (anus) washing start switch 45 is pushed and a buttocks washing start command is issued, or when the bidet washing start switch 46 is pushed and a bidet washing start command is issued, the control unit 32. As a result of this operation, the opening / closing operation time of the solenoid valve 11 and the forward / reverse rotation time of the cleaning motor 67 are set as the normal air venting operation time Q1, and from the first air venting operation to the second air venting operation. If the time is less than the first predetermined time T1 and not less than the second predetermined time T2 shorter than the first predetermined time T1, the opening / closing operation time of the electromagnetic valve 11 and the forward / reverse rotation of the washing motor 67 The operation time Q2 is shorter than the normal air venting operation time Q1 or the operation time Q3 shorter than the normal air venting operation time Q1, and the second air venting operation is performed after the first air venting operation is performed. Time to crack is, if the second is less than the predetermined time T2,
Without performing the second air venting operation, as described above, a buttocks cleaning start command is issued or a bidet cleaning start command is issued, so that the normal cleaning operation is performed and the buttocks cleaning nozzle 61 or the bidet cleaning nozzle is moved. Hot water can be ejected from 62 to perform a normal cleaning operation.

Thus, according to the present invention, the air accumulated in the upper portion of the hot water tank 13 is discharged together with the hot water into the toilet 2 from the air vent passage 90. Spattering of hot water due to ejection from the bidet cleaning nozzle 62 can be prevented, and normal warm water cleaning can be obtained.

A toilet seat device for hot water cleaning according to the present invention is a toilet seat device for hot water cleaning that ejects hot water in the hot water tank from a buttocks cleaning nozzle or a bidet cleaning nozzle by tap water pressure supplied into the hot water tank. Then, the buttocks washing nozzle and the bidet washing nozzle are advanced by tap water pressure applied to the hot water tank, and the hot water is ejected from the nozzle port at the tip.
Instead of this, it is also possible to apply to a motor type in which the buttocks washing nozzle and the bidet washing nozzle are advanced and retracted by respective motors. In this case, coil springs 65A, 6
5B is unnecessary.

Also in this motor type, the configuration and operation of the washing water switching unit SU are the same as described above, and the switching valve 66 is rotated by the air venting function of the first to third technologies and the operation of the washing motor 67. The same applies to the normal operation in which hot water is ejected from the buttocks washing nozzle 61 or the bidet washing nozzle 62 which is driven by the motor and opens the solenoid valve 11 and advances by the motor.

For this reason, in the warm water cleaning toilet seat device in which tap water is supplied into the hot water tank 13 by opening the solenoid valve 11, the buttocks cleaning nozzle 61 and the bidet cleaning nozzle 62 are advanced and retracted by the respective motors. The present invention, including the case of formulas, is not limited to the configurations shown in the above embodiments, but can be applied to various forms, and includes various forms within the technical scope of the present invention. .

DESCRIPTION OF SYMBOLS 1 ... Hot water washing type toilet seat device 2 ... Western style toilet 3 ... Body case 4 ... Toilet seat 5 ... Toilet lid 6 ... Water supply pipe 7 ... Piping hose 8 ... Branch faucet 9 ... Water supply pipe 10 ... Operation part 11 ... Solenoid valve 12 ... Pressure reducing valve 13 ...・ Hot water tank 14... Water supply pipe 15... Hot water outlet pipe 16... Deodorizing mechanism 17 ... Board 18 ... Operation board 19 ... Electric motor 20 ... Electric motor 21... Switching element 22... Switching element 23... ON / OFF switch of electric motor 19 30... Control circuit 31 ... Commercial power supply 32 ... Control unit 33 ...・ ・ Seat switch 35 ・ ・ ・ ・ Temperature sensor 36 ・ ・ ・ ・ Switching element 37 ・ ・ ・Switching element 38 ... Switching element 39 ... Switching element 40 ... Switching element 41 ... Toilet seat heater 42 ... Hot water heater 43 ... ON / OFF switch 44 of the motor 20 ··· Washing stop switch 45 ··· Butt (anal) washing start switch 46 ··· Bidet washing start switch 47P, 47Q · · · Water flow increase / decrease switch 48 · · · Hot water temperature adjustment switch 49 ... Toilet seat temperature adjustment switch 50 ... Temperature detector 51 ... Float switch 52 ... Negative pressure valve 53 ... Brightness detection sensor 54 ... Hot water detection sensor 55 ... ... Thermistor for detecting hot water temperature 60 ... Hot water washing unit 61 ... Butt (anal) washing nozzle 61B ... Butt (anus) washing Nozzle water receiving portion 61A ... Butt (anus) nozzle nozzle 61P ... Packing 62 ... Bidet cleaning nozzle 62A ... Bidet cleaning nozzle port 62B ... Bidet cleaning nozzle water Receiving part 62P ... packing 63 .... ass (anus) cleaning nozzle case 63A ... stop part 63B ... hot water introduction part 64 ... ... bidet cleaning nozzle case 64A ... stop part 64B ... Hot water introduction part 65A ... Coil spring 65B ... Coil spring 66 ... Switching valve 67 ... Electric motor 68 ... Drive shaft 69 of electric motor 67 ... Valve chamber 69B ... Hot water introduction port 70 ··· valve chamber member 71 ··· butt washing water passage 71A · · · outlet of the butt washing water passage 72 · · · bidet washing water passage 72A · · · exit from the bidet washing water passage Portion 73 ... Switching passage member 74 ... Screw 75A ... Flexible pipe 75B ... Flexible pipe 77 ... Support shaft 78 ... Support shaft 79 ... Coil spring 82 ... Seal seal 83A ... Seal packing 83B ... Seal packing 85A ... Contact member 85B ... Contact member 87 ... Installation member 90 ... Air vent passage 90A ... .... Air outlet passage part 91 ... Flexible pipe NC ... Nozzle case body NU ... Nozzle unit SU ... Wash water switching unit

Claims (5)

In a warm water washing type toilet seat device in which tap water is supplied into a hot water tank by opening a solenoid valve in a state in which a seating switch for detecting seating on the toilet seat is operated, the hot water in the hot water tank is washed with a butt washing nozzle or a bidet. An air vent passage is provided separately from the passage supplied to the cleaning nozzle,
In the state where the seat switch detects the seating on the toilet seat, when a butt washing start command or a bidet washing start command is issued, the solenoid valve prior to the hot water jet from the butt washing nozzle or the bidet washing nozzle Is opened and closed for a predetermined time to discharge hot water from the air vent passage into the toilet together with the air accumulated in the upper part of the hot water tank within the predetermined time. With the seating switch that detects seating on the toilet seat activated, tap water is supplied to the hot water tank by opening the solenoid valve, and hot water in the hot water tank is supplied from the butt washing nozzle or the bidet washing nozzle by tap water pressure. In the hot water cleaning type toilet seat device to be ejected, an air vent passage is provided separately from a passage through which the hot water in the hot water tank is supplied to the buttocks washing nozzle or the bidet washing nozzle, and when the seating switch is operated, the electromagnetic valve is A warm water washing type toilet seat device that discharges hot water from the air vent passage into the toilet together with the air accumulated in the upper portion of the hot water tank within the predetermined time by performing a time opening / closing operation. When the solenoid valve is opened, tap water is supplied into the hot water tank, and in the hot water cleaning type toilet seat device in which hot water in the hot water tank is ejected from the buttocks cleaning nozzle or the bidet cleaning nozzle by tap water pressure, it leads to the buttocks cleaning nozzle A buttocks washing water passage, a bidet washing water passage leading to a bidet washing nozzle, a switching valve for switching whether the warm water in the hot water tank flows into the buttocks washing water passage or the bidet washing water passage, and the buttocks washing water passage And a bidet washing command or a bidet washing command in the state where the air vent passage for discharging into the toilet is provided separately from the bidet washing water passage and the seating switch detects the seating on the toilet seat. Prior to normal butt cleaning or bidet cleaning, the switching valve opens the air vent passage and the solenoid valve is set for a predetermined time. There are, warm water washing toilet seat and wherein the hot water is discharged from the air vent passage with air in the hot water tank. Tap water is supplied into the hot water tank when the solenoid valve is opened based on the buttocks washing command or bidet washing command with the seat switch detecting seating on the toilet seat, and the buttocks washing nozzle or bidet washing is performed depending on the tap water pressure. In the hot water washing type toilet seat device for ejecting hot water in the hot water tank from a nozzle, a buttocks washing water passage that leads to the buttocks washing nozzle, a bidet washing water passage that leads to a bidet washing nozzle, and hot water in the hot water tank is washed in the buttocks A switching valve for switching between flowing into the water passage or the bidet washing water passage, and an air vent passage for discharging into the toilet separately from the buttocks washing water passage and the bidet washing water passage, In the state before any of the commands are issued, the changeover valve is configured so that the buttocks washing water passage, the bidet washing water passage, and the air vent are removed. The passage is closed, and in this state, when the seating switch detects the seating on the toilet seat, the switching valve opens the air vent passage and the solenoid valve opens for a predetermined period of time together with the air in the hot water tank. Is discharged from the air vent passage. With the seating switch that detects seating on the toilet seat activated, tap water is supplied to the hot water tank by opening the solenoid valve, and hot water in the hot water tank is supplied from the butt washing nozzle or the bidet washing nozzle by tap water pressure. In the hot water washing type toilet seat device to be ejected, either when a buttocks washing start command or a bidet washing start command is issued with the seating switch detecting seating, or when the seating switch detects seating, A warm water washing type toilet seat device that discharges hot water from the air vent passage into the toilet bowl together with the air accumulated in the upper portion of the hot water tank within the predetermined time by opening and closing the electromagnetic valve for a predetermined time.

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