JP2007270564A - Sanitary washing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary washing device capable of preventing vibrations which occur when pulsation has occurred, vibrations which occur when wash water added with pulsation is discharged, vibrations which occur when a nozzle is driven from transmitting to a main body by a simplified vibration prevention structure. <P>SOLUTION: The sanitary washing device is provided with a water supply means for taking in wash water from a water supply opening; a heating means for heating wash water taken in by the water supply means; a pulsation generating means for adding pulsation to heated wash water; a wash nozzle for jetting water added with pulsation by the pulsation generating means to a human body; and a casing 100 for housing the water supply means, the heating means, the pulsation generating means, and the wash nozzle. The pulsation generating means and the wash nozzle are mounted to a support base 510, and the support base 510 is fixed to the casing 100 via elastic bodies 110 and 113. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sanitary washing device that discharges heated washing water toward a human body.

Conventionally, a sanitary washing device for toilets is well known as a sanitary washing device for washing a local part of a human body. This type of sanitary washing device for toilets is equipped with a pulsation generating device for adding pulsation to washing water heated by a heat exchanger to obtain a feeling of washing and washing power with a small amount of washing water. The cleaning nozzle that is ejected to the human body is moved back and forth between the storage position and the cleaning position. When not in use, the cleaning nozzle is stored in the storage position in the casing, and in use, the cleaning nozzle is moved to a cleaning position so that the direction of discharge of the cleaning water is toward the user seated on the toilet seat. ing. In addition, a hygienic cleaning device that adopts a mode (so-called move cleaning) in which the cleaning nozzle is moved by a minute distance during cleaning to change the cleaning position by using this cleaning nozzle advance / retreat device is also commercialized. Has been.
JP 2001-132057

However, in the above-described conventional technique, the following problems occur due to the pulsation of the cleaning water and the movement of the cleaning nozzle.
(1) Due to the addition of pulsation, the casing forming the sanitary washing device body vibrates.
(2) The casing forming the sanitary washing device main body vibrates by the advancement and retreat of the washing nozzle.
In response to these problems, measures have been taken to provide each unit with an anti-vibration structure, but since each unit has anti-vibration measures, the product cannot be downsized, and the anti-vibration structure Because of this, the increase in the number of parts caused the cost increase.

  In order to solve such a problem, the present invention provides water supply means for taking in cleaning water from a water supply port, heating means for heating the cleaning water taken in by the water supply means, and pulsation for adding pulsation to the cleaning water. A sanitary washing apparatus comprising: a generating means; a cleaning nozzle that ejects washing water pulsated by the pulsation generating means to a human body; and a casing that houses the water supply means, the heating means, the pulsation generating means, and the cleaning nozzle. The pulsation generating means and the washing nozzle were attached to a support base, and the support base was fixed to the casing via an elastic body.

  By integrating the pulsation generating means and the washing nozzle with a support base and attaching the support base to the casing of the sanitary washing apparatus via an elastic body, the vibration-proof structure of the apparatus is simplified and the cost can be reduced.

In the sanitary washing device according to the present invention, a water supply means for taking in the wash water from the water supply port, a heating means for heating the wash water taken in by the water supply means, and a pulsation generating means for adding pulsation to the heated wash water , A cleaning nozzle that ejects washing water, which has been pulsated by the pulsation generating means, onto a human body, and a casing that houses the water supply means, heating means, pulsation generating means, and the cleaning nozzle. The pulsation generating means and the cleaning nozzle are attached to a support base, and the support base is attached to the casing via an elastic body. Since the pulsation generating means and the cleaning nozzle are integrally formed via the support base, the apparatus can be downsized. Further, the mass of the support base increases as the sum of the pulsation generating means, the cleaning nozzle and the support base itself. Therefore, the vibration can be made difficult to occur by increasing the mass of the vibration generating source. Further, since the support base is attached to the casing via the elastic body, the support base and the casing are elastically connected by the elastic body. For this reason, vibration generated when pulsation is added by the pulsation generating means, vibration generated when the washing water with pulsation added is discharged from the cleaning nozzle, and vibration generated when the cleaning nozzle is driven forward and backward are attenuated by the elastic body. Thus, it is prevented from being transmitted to the sanitary washing device. Therefore, it is possible to reduce vibration and noise of the sanitary washing device with a simple configuration. Further, since the sanitary washing apparatus is provided with pulsation generating means, the wash water to which the pressure fluctuation is forcibly applied by the washing water pressure fluctuation section is supplied to the discharge channel. When pressure fluctuation is applied and water is supplied to the water discharge flow path, a speed difference occurs in the washing water, and repeated repetition of the density of the jet of washing water appears as a forced fluctuation. Therefore, even with a small amount of washing water, the human body can taste more irritating washing. As a result, the flow rate of the washing water can be reduced, so that the tank for storing the washing water heated by the heating means can be downsized. Therefore, the apparatus can be miniaturized.

  The pulsation generating means is attached to the support base via a second elastic body. Since the pulsation generating means is attached to the support base via the elastic body, the vibration when the pulsation is applied by the pulsation generating means is prevented from being attenuated and transmitted to the support base by the elastic body. Therefore, the vibration which generate | occur | produces when a vibration is transmitted to a washing nozzle via a support stand can be prevented. Further, in addition to the elastic body between the support base and the casing, the pulsation generating means is attached to the support base via the elastic body, so that the elastic body between the pulsation generating means and the support base, the support base and the casing Two vibration-insulating damper mechanisms with the elastic body between them can be configured. For this reason, a high vibration damping effect can be exhibited, and vibration propagation to a toilet can be avoided. In addition, such vibration suppression can effectively suppress the generation of abnormal noise accompanying the vibration.

  As the heating means, a warm water means for heating the washing water instantaneously to make it warm and introducing the washing water into the pulsation generating means is suitably employed. If the sanitary washing device is equipped with pulsation generating means, adding a pulsation to the wash water ensures a sufficient washing feeling and washing power with a small washing flow rate. Even when a heat exchanger is used, a sufficient temperature raising capability can be ensured. Therefore, since the cleaning water is heated only when necessary, the hot water storage tank provided in the majority of conventional sanitary cleaning apparatuses is not required, and the entire apparatus can be reduced in size, and energy saving can also be achieved. Become.

  The instantaneous heat exchanger and the support base are arranged in the vicinity, and a water outlet for introducing hot water from the heating means to the pulsation generating means is arranged in the vicinity of the pulsation generating means water inlet. Since the pulsation generator and the instantaneous heat exchanger are adjacent to each other, the length of the pipe connecting the pulsation generator to the instantaneous heat exchanger can be reduced as much as possible. Therefore, since the time for reaching the target set temperature is shortened, the initial water discharge temperature characteristic is improved. In addition, by shortening the piping from the cleaning water heating means to the cleaning nozzle spout, the time for the cleaning water whose temperature is adjusted by the heating means to reach the human body part is shortened. Therefore, even when the temperature is changed by the user during the cleaning operation, the time for the temperature-adjusted cleaning water to reach the human body part is shortened. That is, the responsiveness to temperature changes is improved. Moreover, since the heat capacity is reduced, the output of the instantaneous heat exchanger can be reduced.

  Upstream of the pulsation generator, there are provided a main channel that discharges cleaning water toward the human body and a drain channel that is not discharged toward the human body, and switching that switches between the main channel and the drain channel It has a valve. By providing the switching valve upstream of the pulsation generating means, if hot water is generated due to some failure of the device, high temperature water discharge is prevented by switching the wash water to the waste water flow path. Therefore, it is possible to provide only a stable and safe washing water to the human body. Also, by switching the wash water to the waste water flow path and turning off the hot water heater in the heat exchanger, the wash water taken in by the water supply means passes through the heat exchanger at the taken-in temperature, and the waste water flow Discharged through the road. Therefore, the inside of the heat exchanger is effectively cooled by the washing water. Thus, even when high temperature water is generated, it is possible to cool the flow path while preventing high temperature water discharge to the human body. Furthermore, when the cleaning nozzle is extended and stored, the cleaning water is switched to the waste water flow path, and the cleaning water is supplied to the pulsation generating means only when the nozzle is at the cleaning position, and discharged to the human body through the cleaning nozzle. The user will not feel uncomfortable by getting wet except the part to be cleaned.

  The cleaning nozzle includes a plurality of flow paths. By providing the cleaning nozzle with a plurality of flow paths, one cleaning nozzle can have a plurality of cleaning modes. Therefore, since the nozzle unit can be made compact, the apparatus can be miniaturized. In addition, since the number of cleaning nozzles is one, the number of members to which the vibration generated by the pulsation generating means is transmitted is reduced, so that the vibration isolation structure is simplified.

  The switching valve includes a plurality of water passage portions having a water inlet and a plurality of water outlets upstream of the cleaning nozzle, and a valve body including at least one water passage portion among the water passage portions. A flow rate adjusting / flow path switching valve is provided for selectively switching the wash water to one or more of the plurality of outlets and increasing or decreasing the flow rate of the wash water. When the valve body having one or more water passages is selectively switched to one or more of the plurality of water outlets, it is possible to have a plurality of washing modes. At the same time, since the flow rate is adjusted, the flow adjustment function and the flow path switching function can be integrated, so that the number of members to which vibration generated by the pulsation generating means is transmitted is reduced, and the vibration isolation structure is simplified. Furthermore, in the case of a sanitary washing apparatus equipped with an instantaneous heat exchanger, even if a signal is given from the controller to the hot water heater, there is a time delay due to the heat capacity of the hot water heater. The extremely low flow rate causes overheating of the heat exchanger and causes high temperature water to be generated. However, in this sanitary washing device, since the switching valve is configured separately from the flow rate adjustment / flow path switching valve, the cleaning water is drained before the flow rate adjustment / flow path switching valve is driven when the cleaning mode is switched. It is possible to switch to the main flow path and switch the washing water to the main flow path with the temperature of the washing water being stable, by switching to the road, performing the washing mode switching and flow quantity regulation with the flow rate adjustment and flow path switching valve Therefore, only stable and safe washing water can be provided to the human body.

  The flow rate adjusting / flow path switching valve and the washing nozzle are integrated with each other, and are freely movable between a storage position and a use position. The flow rate control / flow path switching valve is integrated with the washing nozzle, and the flow between the flow rate adjustment / flow path switching valve and the washing nozzle can be limited by freely moving between the storage position and the use position. It becomes possible to make it small. Therefore, the flow resistance of the cleaning water can be minimized. When the pulsation generating device is provided on the upstream side of the flow rate adjusting / flow path switching valve, the pulsation given by the pulsation generating device can be discharged from the water discharge port without being attenuated. Therefore, since the output and size of the pulsation generating means can be minimized, the vibration generated when the pulsation occurs is suppressed, and the apparatus can be downsized. Furthermore, when the flow rate adjustment / flow path switching valve is configured separately from the cleaning nozzle, a plurality of flow paths such as tubes connecting the flow rate adjustment / flow path switching valve and the cleaning nozzle are required. When moving the tube between the storage position and the use position, it is necessary to secure a space for the plurality of tubes to move in accordance with the movement of the nozzle, and the nozzles are resisted against the bending force of the plurality of tubes. Since it must be moved, a nozzle drive means with sufficient output is required. On the other hand, when the flow rate adjustment / flow path switching means and the washing nozzle are configured integrally, only one tube moves in accordance with the movement of the nozzle, so the movement space of the tube and the output of the nozzle driving means can be reduced. Since it can be minimized, vibrations generated during nozzle driving and vibrations of the nozzle driving motor itself are suppressed. Furthermore, by switching only the switching means to the wastewater flow path from the flow rate adjusting / flow path switching means, switching to the wastewater flow path is possible regardless of the state (setting) of the flow rate adjusting / flow path switching means. Since the time is always constant, there is no need to give the user discomfort due to variations in the flow path switching time. Further, when the cleaning nozzle and the flow rate adjusting / flow path switching means are integrated, piping to the drainage flow path (for example, a flexible tube or the like) is required. In that case, it is necessary to connect the flow rate adjusting / flow path switching means and the waste water flow path when the cleaning nozzle is stored, and when the cleaning nozzle is extended, a space for storing the piping is required. Become. Furthermore, it is also necessary that there are no obstacles on the movement trajectory accompanying the extension and storage of the cleaning nozzle. However, according to the present invention, the switching valve for switching to the waste water channel is configured as a separate body, and the piping to the waste water channel is fixed. This eliminates the need for piping space associated with the extension and storage of the cleaning nozzle, thereby reducing the size of the apparatus.

  The switching valve may be an electromagnetic three-way valve using a solenoid as a drive source. By using a solenoid as a drive source for the switching valve, it is possible to perform a high-speed switching operation between the main flow path and the drainage flow path. Therefore, since the flow path can be instantaneously switched to the waste water flow path when the cleaning mode is switched, fluctuations in the flow rate of the cleaning water are reduced. For this reason, generation of high temperature water due to fluctuations in flow rate is prevented. In addition, the use of a solenoid as the drive source can reduce the cost. In addition, the high-speed switching operation improves the reliability of preventing high-temperature water discharge.

  The pulsation generating means includes a cylinder that forms a part of a cleaning water supply path, a plunger that reciprocates in the cylinder, pulsates in the flow of cleaning water by the reciprocation, and pumps the cleaning water downstream of the cylinder. And an electromagnetic solenoid that reciprocates the plunger, an exciting means that excites the solenoid, and a check valve that is provided in the cylinder and allows the wash water to pass downstream. Through the excitation control of the electromagnetic solenoid, the plunger is reciprocated in the cylinder, whereby pulsation is caused in the flow of cleaning water, and the cleaning water can be pumped in a pulsating flow state. In addition, since a check valve is provided only on the downstream side and no check valve is provided on the upstream side of the cylinder, cleaning water is always guided into the cylinder regardless of the movement of the plunger when pumping in pulsating flow. Pump wash water. Therefore, the situation of zero flow rate can be prevented from occurring when the washing water is pumped in the pulsating flow without using a special configuration or plunger movement control. Therefore, it is possible to prevent the situation where the flow of the cleaning water is interrupted even for a moment, so that the occurrence of water hammer can be mitigated in the cleaning water system including the water supply path. As a result, it is possible to eliminate or reduce problems such as damage or deterioration of equipment in pipes and flow paths included in the cleaning water system, abnormal noise such as chatter noise, and inadvertent vibration.

  The pulsation generator and the electromagnetic three-way valve are integrally formed. By configuring the electromagnetic three-way valve and the pulsation generator integrally, the vibration source mass can be increased as the sum of the electromagnetic three-way valve and the pulsation generator. Accordingly, it is possible to make it difficult for the vibration associated with the occurrence of pulsation to occur, so that the vibration isolation structure is simplified. Moreover, since the electromagnetic three-way valve and the pulsation generator are integrally configured as a unit, the flow path between the electromagnetic three-way valve and the pulsation generator can be made as small as possible. Therefore, the time for reaching the target set temperature is shortened, and the initial water discharge temperature characteristic is improved. Moreover, since the heat capacity is reduced, the output of the heat exchanger can also be reduced.

  Further, the pulsation generating device reciprocates in the cylinder that forms a part of the cleaning water supply path, and pulsates in the flow of the cleaning water by the reciprocating motion to pump the cleaning water downstream of the cylinder. A plunger, an electromagnetic solenoid that reciprocates the plunger, and an exciting means that excites the solenoid, and the pulsation generator and the switching valve are disposed between the water hammer by the pulsation generator. These may be integrated via an accumulator that attenuates the noise. By configuring the switching valve and the pulsation generator integrally, the vibration source mass can be increased as the sum of the switching valve and the pulsation generator. Accordingly, it is possible to make it difficult for the vibration associated with the occurrence of pulsation to occur, so that the vibration isolation structure is simplified. Moreover, since the switching valve and the pulsation generator are integrally configured as a unit, the flow path of the switching valve and the pulsation generator can be made as small as possible. Therefore, the time for reaching the target set temperature is shortened, and the initial water discharge temperature characteristic is improved. Moreover, since the heat capacity is reduced, the output of the heat exchanger can also be reduced. Furthermore, since the accumulator is interposed between the switching valve and the pulsation generator, water from the pulsation generator to the upstream side is absorbed by the accumulator. There will be no malfunction.

Hereinafter, embodiments employing the present invention will be described with reference to the drawings.
A waterway diagram of the sanitary washing apparatus according to this embodiment is shown in FIG. Here, FIG. 1 is a schematic configuration diagram showing a cleaning water supply system.

  As shown in FIG. 1, the water channel system of the sanitary washing device includes a water inlet side valve unit 50, a heat exchange unit 60, a three-way valve and pulsation generated from a water supply source (not shown) outside the casing of the sanitary washing device. A unit 70. Then, the wash water having the pulsation imparted by the three-way valve / pulsation generating unit 70 is guided from the three-way valve / pulsation generating unit 70 to the cleaning nozzle 82 through the flow rate adjustment / flow path switching valve 81 of the cleaning nozzle unit 80. The water is discharged from the nozzle 82. Each of these units is housed in a casing of a sanitary washing device. Here, the three-way valve / pulsation generating unit 70 and the cleaning nozzle unit 80 are integrally configured as a cleaning water discharge unit 90 via a support member 510. The controller 10 includes an electromagnetic valve 53, an incoming water temperature sensor ss62a, a heater 61, an outgoing water temperature sensor ss62b, a float switch 63, a three-way valve 71, a pulsation generator 74, a flow rate adjustment / flow path switching valve 81, a washing nozzle 82, and a control button. (Not shown). For the control button, select a washing mode with a strong sensation of hard washing (hereinafter referred to as “wet washing”), soft washing (hereinafter referred to as “soft washing”), and bidet washing (hereinafter referred to as “bide washing”). A washing button, a water change button for changing the washing water flow, a temperature adjustment button for selecting the washing water temperature, and a stop button for stopping washing are included.

  These units are connected to each other by a water supply pipe with the three-way valve / pulsation generating unit 70 interposed therebetween. That is, the water inlet side valve unit 50 and the heat exchange unit 60 are connected by a water supply line 55, and the flow rate adjustment / flow path switching valve 81 downstream of the three-way valve / pulsation generating unit is connected by a water supply line 75. The heat exchange unit 60 and the three-way valve / pulsation generating unit 70 are arranged close to each other. More specifically, the water outlet of the heat exchange unit 60 is arranged close to the water inlet of the three-way valve / pulsation generating unit 70. The two are connected by a water supply pipe 67.

The water supply line 55 is piped to the water inlet side valve unit 50 so as to supply cleaning water (tap water) directly from a water supply source (water pipe). The washing water guided to the water supply pipe 55 is supplemented with dust by the strainer 51 of the water inlet side valve unit 50 and flows into the check valve 52. Then, when the pipe line is opened by the electromagnetic valve 53, the washing water flows into the pressure regulating valve 54, and is regulated to a predetermined pressure (primary pressure: 0.098 MPa {about 1.0 kgf / cm ² }). It flows into the heat exchange unit 60 of the instantaneous heating system, and the flow rate of the wash water that flows in after being regulated in this way is set to about 300 to 600 cc / min. A branch from a cleaning water tank (not shown) for storing cleaning water for cleaning may be provided and piped to the water inlet side valve unit 50.

  The heat exchange unit 60 downstream of the water inlet side valve unit 50 includes a heat exchange unit 62 in which a heater 61 is built. The heater 61 is made of tungsten-molybdenum having a good thermal response, and is manufactured as follows. First, a heater pattern is screen-printed on a ceramic sheet with a tungsten-molybdenum paste, and the ceramic sheet is wound around a cylindrical ceramic and sintered. By doing so, the heater is configured as a cylindrical ceramic heater formed by insulating a heater pattern with an insulating layer. Then, a Ni-plated Kovar electrode is used as the energizing electrode portion, and this Kovar electrode is fixed by brazing to the heater pattern. Further, a mounting flange is fixed to the cylindrical heater thus formed by glass welding, and the heater 61 is obtained. Since the heater 61 has good heat responsiveness as described above, the heat exchanging portion 62 only needs to have a capacity capable of instantaneously heating the cleaning water by the heater 61, and the heat exchanging portion 62, and thus the heat exchanging unit. The entire 60 can be downsized. Further, since the structure of the heat exchange unit 60 is simplified, there are manufacturing advantages such as a reduction in assembly man-hours and cost reduction. A bimetal switch (not shown) or a thermal fuse (not shown) that mechanically shuts off the abnormal heating is mounted on or near the heater 61. The heat exchanging unit 60 detects the temperature of the washing water flowing into the heat exchanging unit 62 and the temperature of the washing water flowing out of the heat exchanging unit 62 with the incoming water temperature sensor ss62a and the outgoing water temperature sensor ss62b, and detects the detected temperatures. Based on this, the heating operation of the heater 61 is controlled so that the cleaning water is heated to the cleaning water at the set temperature. In this way, the warmed washing water flows into a three-way valve / pulsation generating unit 70 described later, is added with pulsation, and flows into the flow rate adjustment / flow path switching valve 81.

  The heat exchange unit 60 also has a float switch 63 that detects the water level in the heat exchange unit 62. The float switch 63 is configured to output a signal to that effect when the heater 61 is above a predetermined water level at which the heater 61 is submerged. Then, the controller 10 controls the energization of the heater 61 under the condition that this signal is input, so that the situation where the heater 61 that is not submerged is energized, that is, the so-called empty heating of the heater 61 is prevented. The heater 61 of the heat exchange unit 60 is optimally controlled by the controller 10 while combining feedforward control and feedback control.

  Further, the heat exchange unit 60 includes a vacuum breaker 64 and a safety valve 65 at the washing water outlet from the heat exchange section 62, that is, at the heat exchange section connection location of the pipe line downstream of the heat exchange section 62. The vacuum breaker 64 introduces the atmosphere into the pipe line having a negative pressure, cuts off the washing water in the pipe line downstream of the heat exchange unit, and prevents the washing water from flowing backward from the downstream side of the heat exchange unit. The safety valve 65 opens when the water pressure in the water supply pipe 67 exceeds a predetermined value, and discharges wash water to the drainage pipe 66 to prevent problems such as equipment breakage and hose disconnection in the event of an abnormality. ing.

  Next, the cleaning water discharge unit 90 will be described. 2A and 2B are perspective views of the washing water discharge unit 90, respectively. The cleaning water discharge unit 90 includes a three-way valve / pulsation generating unit 70, a cleaning nozzle unit 80, and a support base 510 for mounting the three-way valve / pulsation generating unit 70 and the cleaning nozzle unit 80. More specifically, the support base 510, the nozzle drive motor 520 incorporated in the support base 510, and the transmission mechanism 530 that converts the forward / reverse rotation of the nozzle drive motor 520 into the forward / backward movement and transmits it to the cleaning nozzle unit 80. A nozzle holding portion 540 that is erected on the upper surface of the support base 510 and that can freely slide the cleaning nozzle unit 80 on the toilet bowl side, and a guide rail portion 550 that guides the cleaning nozzle unit 80 along a nozzle advancing / retreating track to be described later. And a fixing boss 560 for fixing the three-way valve / pulsation generating unit 70 on the side surface of the support base 510.

  The transmission mechanism 530 applies a tension to the drive pulley 530a fixed to the rotation shaft of the nozzle drive motor 520, the front and rear driven pulleys 530b along the nozzle advance and retreat trajectory, the timing belt 530c spanned between these pulleys, and the belt. A tensioner 530d is provided. The timing belt 530 c is engaged with and fixed to the cleaning nozzle unit 80 via a connecting portion 83 fixed to the cleaning nozzle unit 80. Therefore, the cleaning nozzle is driven back and forth between the cleaning nozzle storage position and the cleaning position in accordance with forward and reverse rotation of the timing belt 530c.

  The distal end portion of the cleaning nozzle unit 80 is accommodated in a nozzle holding portion 540 located at the distal end of the support base 510 when being accommodated. At the cleaning position, the cleaning nozzle unit 80 swings and extends the nozzle holding part 540 to a position where the human body part can be discharged. The nozzle holder 540 is provided with a cleaning water port 540a, and the nozzle can be cleaned with the cleaning water sent to the cleaning water port 540a when the nozzle is extended and stored.

  The three-way valve / pulsation generating unit 70 is screwed to a fixed boss 560 on the support base 510 via a vibration isolating rubber (not shown). Therefore, the vibration control effect of the vibration isolating rubber can suppress vibrations accompanying the occurrence of pulsation, and can also suppress the generation of abnormal noise due to vibrations.

  Next, the structure of the three-way valve / pulsation generating unit 70 will be described. FIG. 3 is a schematic sectional view of the three-way valve / pulsation generating unit 70. The three-way valve / pulsation generating unit 70 includes a three-way valve 71, a connecting pipe 72, an accumulator 73, and a pulsation generating device 74. The accumulator 73 is installed in a connecting pipe 72 that connects the three-way valve 71 and the pulsation generating device 74, and the connecting pipe 72 includes a three-way valve inlet 71a, a water outlet 71b, and a pulsation generator inlet 74a as shown in the figure. And. With this structure, the three-way valve 71, the accumulator 73, and the pulsation generator 74 are integrated.

  Next, the three-way valve 71 will be described. As shown in FIG. 3, the three-way valve includes a water inlet 71a, a water outlet 71b, a water outlet 71c, a valve body 71d using a magnetic material, a coil 71e, and a spring 71f. The valve body 71d is provided with a water outlet 71b and a valve rubber 71g for sealing the water outlet 71c. The washing water taken in from the water inlet 71a is discharged from either the water outlet 71b or the water outlet 71c when the coil 71e is energized on or off. In this embodiment, the water outlet 71b is connected to the main flow path side 75 connected to the accumulator 73, and the water outlet 71c is connected to the waste water flow path 76 connected to the nozzle cleaning port 540a (see FIG. 1). When energization of the coil 71e is off, the valve body 71d is positioned on the water outlet 71b side by the force of the spring 71f, and the water outlet 71b is closed. Accordingly, the water outlet 71c is open. Therefore, the washing water is discharged from the water outlet 71c. When energization of the coil 71e is turned on, the coil 71e is excited, and a suction force in the direction of opening the water outlet 71b is applied to the valve body 71d. Therefore, the valve body 71d moves to the water outlet 71c, so this time The water port 71c is closed and the water outlet 71b is opened. As described above, the cleaning water is discharged from the water outlet 71b to the main flow path side 75. Further, when energization to the coil 71e is turned off, the suction force is lost, the valve 71d is moved to the water outlet 71b by the spring 71f, and the water outlet 71b is closed again. Accordingly, the water outlet 71c is opened, and the washing water is discharged from the water outlet 71c.

  Even when the coil 71e is energized either on or off, either the water outlet 71b or the water outlet 71c is open, so that the closed section does not exist. Further, by using a solenoid for the three-way valve 71 as in this embodiment, the main flow path 75 and the waste water flow path 76 can be switched at high speed.

  Furthermore, since the water outlet 71b is normally closed, the main flow path 75 can be closed only by turning off the power supply to the coil 71e. Therefore, even if abnormal high temperature water is generated due to some abnormality, Safe operation that does not cause high-temperature water discharge to the human body can be reliably performed simply by turning off the energization.

  Next, as shown in FIG. 3, the accumulator 73 has a housing 73a connected to a connection pipe 72 upstream of the pulsation generating device 74, a damper chamber 73b in the housing, and a damper 73c disposed in the damper chamber 73b. Therefore, the accumulator 73 reduces water hammer applied to the water supply pipe 67 on the upstream side of the three-way valve / pulsation generating unit 70. For this reason, the influence of the water hammer which has on the washing water temperature distribution of the heat exchange part 62 can be relieved, and the temperature of washing water can be stabilized. In this case, the accumulator 73 is disposed close to or integrally with the pulsation generating device 74 so that the pulsation generated by the pulsation generating device 74 can be quickly transmitted upstream as described later. And it is preferable from a viewpoint which can be avoided effectively. In addition, the accumulator 73 can also be formed as the structure which provided the damper 73c and the spring which urges | biases this, or the air reservoir which expanded the water supply pipe line 67 partly upwards.

  Next, as shown in FIG. 3, the pulsation generating device 74 includes a plunger 74 c that can freely swing in a cylinder 74 b connected to the water supply pipes 67 and 75. The plunger 74c is advanced and retracted upstream and downstream by excitation control of the pulsation generating coil 74d. The plunger 74c moves from the illustrated original position (plunger original position) to the downstream side 74h by the excitation of the pulsation generating coil 74d. When the coil excitation disappears, the plunger 74c returns to the original position by receiving the urging force of the return spring 74f. At this time, the operation of the plunger 74c is buffered by the buffer spring 74e. Since the plunger 74c has a check valve 74g made of a steel ball and a spring in the inside thereof, the washing water in the cylinder 74b is pressurized and pushed to the water supply pipe 75 when moving from the plunger original position to the downstream side. At this time, since the plunger original position is constant, a certain amount of washing water is sent to the water supply pipe 75. Thereafter, when returning to the original position, the cleaning water flows into the cylinder 74b through the check valve 74g, so that a fixed amount of cleaning water is sent to the water supply pipe 75 again by the next downstream movement of the plunger 74c. It will be. In addition, when the plunger returns to its original position, the washing water in the downstream side of the plunger 74c, that is, the water supply pipe 75 is drawn, so that the pulsation generating device 74 is periodically subjected to pressure as the plunger 74c reciprocates. Cause the pulsation to fluctuate up and down, and the washing water flows in the pulsating flow through the water supply pipe.

  In this case, the pulsation generating device 74 is supplied with the washing water having the primary pressure through the water supply pipe 55. Therefore, as described above, the wash water flowing into the cylinder 74b through the check valve 74g during the return to the original position of the plunger is affected by pressure loss due to the check valve 74g and drawing of wash water downstream. Although the pressure is not maintained, it is sent to the water supply line 75. When this state is represented by a diagram, as shown in FIG. 4, the washing water is supplied from the pulsation generating device 74 to the water supply line 75 with a pressure pulsating around the introduction water pressure Pin (primary pressure) to the pulsation generating device 74. As a result, it is sent to the washing nozzle unit 80 and discharged to the local area. Moreover, the washing water pressure sent downstream from the pulsation generating device 74 does not become zero due to the washing water flowing into the cylinder 74b through the check valve 74g when the plunger 74c returns to the original position as described above. . This pulsation transition of the washing water pressure is reflected in the transition of the washing water flow rate. In this case, since the introduced water pressure Pin, which is the center of pulsation, is regulated by the pressure regulating valve 54, the pulsation can be shifted up and down with the locus shown in FIG. Since the pulsation transition of the washing water pressure is reflected in the transition of the washing water flow rate, the water discharge amount can be adjusted up and down by shifting the pulsation.

  The pulsation cycle MT seen in FIG. 4 is synchronized with the excitation cycle of the pulsation generating coil 74d, and can be variously set through this excitation cycle change control. In addition, since only the coil excitation for reciprocation of the plunger 74c is required for generating the pulsating flow of the washing water, the configuration of the pulsation generating device 74 can be simplified.

  Now, when installing the three-way valve / pulsation generating unit 70, an anti-vibration rubber was interposed. Therefore, the vibration control effect of the vibration isolating rubber can suppress vibrations accompanying the generation of vibrations, and can also suppress the generation of abnormal noise due to vibrations. Furthermore, since the three-way valve 71, the accumulator 73, and the pulsation generating device 74 are integrally configured in this embodiment, the vibration associated with the generation of pulsation is caused by the fact that the mass of the vibration source is increased as the sum of these components. In addition to being able to make it difficult to wake up, vibration control can be achieved by the vibration control effect of the vibration proof rubber. In this way, in addition to integrating the unit and increasing the mass of the vibration source, there is a manufacturing advantage such as a reduction in cost due to the reduction in the number of members by configuring it integrally with the support base 510, and downsizing of the device Can also be planned. Further, if a vibration isolating rubber is disposed between the three-way valve / pulsation generating unit 70 and the support base 510, the anti-vibration rubber and the anti-vibration rubber on the bottom surface of the support base 510 can be used as shown in FIG. It is possible to configure a vibration isolation damper mechanism. For this reason, by selecting the anti-vibration rubber so that the spring constants k1 and k2 and damping coefficients c1 and c2 effective for vibration reduction can be selected, a high vibration damping effect can be exhibited, and vibration propagation to the toilet seat and the like Can be effectively avoided. Such vibration suppression can effectively suppress the generation of abnormal noise accompanying the vibration.

  Further, as shown in FIG. 3, since the three-way valve 71, the accumulator 73, and the pulsation generator 74 are integrally configured as a unit, the flow path can be shortened as much as possible, so that the time until the set temperature is reached is short. Therefore, the initial water discharge temperature characteristic is improved. Further, since the heat capacity is reduced, the output of the heater 61 can be reduced.

  Moreover, in the present Example, it comprised as follows in comprising said waterway system. That is, the water supply pipe 67 and the water supply pipe 75 of the three-way valve / pulsation generating unit 70 are made of high-hardness flexible pipes and the hardness of the water supply pipe 75 is made larger than that of the water supply pipe 67. In addition, coupler-type joints were used for the pipe connections between the pipes and the units. Furthermore, each unit is placed close to each other (heat exchange unit 60 water outlet and three-way valve / pulsation generating unit 70 water inlet, three-way valve / pulsation generating unit 70 water outlet and washing nozzle unit 80 water inlet), and the water supply pipe length is increased. Shortened. As a result, the expansion and contraction of the water supply pipeline itself is less likely to occur, and the influence of pulsating flow attenuation accompanying this expansion and contraction can be suppressed. It can be sent to the unit 80. The downstream side pipe 65 can be more effectively suppressed together with the flexible pipe having high hardness. Therefore, since the output of the pulsation generating device 74 can be set small, the vibration of the pulsation generating device 74 can be reduced. Furthermore, since each water supply pipe line length is shortened, time until it reaches set temperature becomes short, and an initial water discharge temperature characteristic improves. Further, since the heat capacity is reduced, the output of the heater 61 can be reduced.

  Next, the cleaning nozzle unit 80 will be described. FIG. 6 shows a state in which the cleaning nozzle unit 80 is provided with a flow rate adjusting / flow path switching valve 81. As shown in FIG. 6, the flow rate adjustment / flow path switching valve 81 is located at the rear end of the cleaning nozzle 82. Then, the supply destination of the cleaning water of the pulsating flow sent from the three-way valve / pulsation generating unit 70 is switched to each flow path 83, 84, 85 of the cleaning nozzle 82, and the flow rate is adjusted.

  Next, the cleaning nozzle 82 will be described. 7A and 7B are structural diagrams of the cleaning nozzle. The plurality of cleaning channels 83, 84, and 85 in the cleaning nozzle 82 communicate with a butt cleaning water discharge hole 401 and a bidet cleaning water discharge hole 402 that discharge cleaning water toward a butt near the tip of the cleaning nozzle, respectively. Washing water vortex chambers 301 and 302 are provided upstream of the water discharge holes 401 and 402 for discharging water from the water discharge holes as a swirling flow while swirling the cleaning water flowing through the cleaning flow paths 83 and 85. The cleaning channel 84 communicates below the cleaning vortex chamber 301 and communicates with the water discharge hole 401.

  Here, the movement of the cleaning water in the cleaning nozzle 82 will be described by taking an example of a nozzle structure for washing and soft cleaning. At the time of butt washing, as shown in FIG. 8, a plurality of types of washing water, swirl washing water RW and straight washing water UW, are discharged from one water discharge hole 401. Here, the swirl washing water RW refers to the wash water discharged in the direction toward the water discharge hole 401 in a state of being spirally swiveled around the axis of the water discharge hole 401. The straight forward cleaning water UW refers to cleaning water that is discharged almost straight in the direction toward the water discharge hole 401. As shown in FIG. 9, the swirl washing water RW is hollow in the vicinity of the swivel center and has a spiral shape that gradually spreads away from the water discharge hole 401. Such swirl cleaning water RW is realized by the cleaning water supplied from the cleaning flow path 84 to the cleaning water vortex chamber 301 flowing along the inner peripheral wall of the cleaning water vortex chamber 301. That is, by supplying cleaning water from the cleaning channel 84 along the inner peripheral wall of the cleaning water vortex chamber 301 having a substantially cylindrical shape, the cleaning water is supplied to the cleaning water vortex chamber 301 as indicated by an arrow SY shown in FIG. The swirl component is imparted to the cleaning water, and the water is directed to the water discharge hole 401. The flow of the cleaning water that is swirled by the flow of the cleaning water passing through the cleaning flow path 84 along the inner peripheral wall of the cleaning water vortex chamber 301 is called a swirling flow, and the cleaning flow path 84 is swirled. Call it the road. Such a spiral swirl cleaning water RW can softly clean a wide area (cleaning area SMc shown in FIG. 8). Further, the washing water is appropriately subdivided by turning, and water can be discharged with a sufficiently soft feeling. On the other hand, the rectilinear cleaning water UW has a hollow portion such as swirling cleaning water or a substantially cylindrical shape without spreading. Such straight-running cleaning water UW flows substantially vertically upward as shown in FIG. 8SS without the cleaning water flowing from the cleaning flow channel 85 flowing toward the axial center of the cleaning water vortex chamber 301 and swirling. Realized. The flow of the cleaning water in which the cleaning water passing through the cleaning flow path 85 travels substantially vertically above is referred to as a straight flow, and the cleaning flow path 85 is referred to as a straight flow path. According to such a substantially cylindrical straight cleaning water UW, it is possible to strongly clean a narrow local area (cleaning area SMa shown in FIG. 8). In this way, the buttocks cleaning is realized by a combination of swirl flow and straight flow cleaning water. Further, the bidet cleaning channel configuration (not shown) includes only a swirl flow, and the cleaning channel 83 is referred to as a bidet channel.

  Next, the flow rate adjustment / flow path switching valve 81 will be described. FIG. 6 is an exploded view of the parts constituting the flow rate adjustment / flow path switching valve 81, and these parts are incorporated in the cleaning nozzle body 82 and integrally formed. The flow rate adjustment / flow path switching valve 81 includes a drive motor 170 having a drive shaft 171, a cross-tipped pan-head screw 160, a push plate 180, an O-ring 190, a storage body 200, a Y packing 210, One end is a drive, and the other end of the shaft is coupled to a fixed portion, a support portion 220, a seal flange 230, a spring 240, a movable portion 250, a fixed portion 260, and a fixed portion seal 270.

  9A and 9B are top views of the movable portion 250 and the fixed portion 260 that perform the valve function among these flow rate adjusting and flow path switching valve components. As shown in FIG. 9A, the movable portion 250 is formed with a large hole 251 and a small hole 252 passing therethrough.

  Further, as shown in FIG. 9B, the fixed portion 260 passes through a bidet hole 261 that communicates with the bidet flow path 83, a swivel hole 262 that communicates with the swirl flow path 84, and a rectilinear hole 263 that communicates with the rectilinear flow path 85. It is configured as follows. Further, recesses 261a, 261b, 262a, 262b, 262c, 263a, 263b are formed in the circumferential direction of the fixed portion with a predetermined width so as to communicate with each hole. The recesses 261b, 262b, and 263a are used in a fully open state in which all the holes of the movable portion 250 and all the holes of the fixed portion 260 communicate with each other. The recess 263a forms a straight flow during butt washing, and the recess 262c forms a swirl flow, and is used to adjust the flow rate. Further, the concave portion 262b is used for adjusting the flow rate during soft cleaning, and the concave portion 261a is used for adjusting the flow rate during bidet cleaning. Switching of the cleaning water to each cleaning flow path is performed by any one of the holes of the movable unit 250 communicating with any one or a plurality of the holes of the fixed unit 260 and the recesses communicating therewith. Moreover, the depth of the recessed part with which the fixing | fixed part 260 was equipped is increasing toward the through-hole connected. Then, by rotating or moving the movable portion 250, the minimum flow cross-sectional area formed by the concave portion or the hole portion of the movable portion 250 and the fixed portion 260 is increased or decreased. The flow rate changes. As shown in FIGS. 9A and 9B, the movable portion 250 and the fixed portion 260 have a rotation axis, and the movable portion rotates on the fixed portion around the rotation axis. Further, the rotation direction of the movable portion 250 can be rotated clockwise or counterclockwise by the drive motor 180.

  10A to 10D show the communication state between the hole of the fixed part 250 and the hole and the concave part of the movable part 260 when the relative positional relationship between the fixed part 250 and the movable part 260 is changed. Is. Specifically, the movable portion 250 that rotates by being transmitted with the drive torque of the drive motor 180 via the drive shaft 171 and the support portion 220 moves on the fixed portion 260 formed with a hole portion and a recess portion that communicate with each cleaning flow path. Specifically, the rotation state is shown. Specifically, the origin state and bidet cleaning mode state (when the minimum flow rate is set), the fully open state, the soft cleaning mode state (when the maximum flow rate is set), and the buttocks cleaning mode state (minimum) (When the flow rate is set). In this figure, the portions communicating with the holes of the movable part and the holes or recesses of the fixed part are shown in black.

  FIG. 10A shows a state in which the rotation angle of the motor is 0 °, and this state is the origin state. In this state, a part of the large hole 251 of the movable portion 250 is communicated with the recess 261a communicating with the bidet hole 261 of the fixed portion 260, and the minimum flow rate setting state in the bidet cleaning mode is achieved at the same time as the origin state. This state is the minimum water discharge flow rate in bidet cleaning, and as the rotation angle of the motor increases in the rotation direction L, the depth of the recess 263a communicating with the bidet hole 261 also increases, so the minimum flow path configured in the recess 263a As the cross-sectional area increases, the flow rate of the cleaning water flowing out into the bidet channel 83 increases.

  When the movable portion 250 is rotated about 105 ° in the counterclockwise direction along the rotation direction L from the state of FIG. 10A, the state of FIG. 10B, the large hole 251 of the movable portion 250 communicates with the concave portion 261b that communicates with the bidet hole 261 of the fixed portion 260 and the concave portion 262a that communicates with the turning hole 262, and the small hole 252 of the movable portion 250 has the small hole 252 of the fixed portion 260. By communicating with the recess 263b communicating with the rectilinear hole 263, a fully open state communicating with all the flow paths in the cleaning nozzle body is achieved.

  When the movable part 250 is rotated about 155 ° counterclockwise along the rotation direction L from the state of FIG. 10A, the state of FIG. In FIG. 10C, the large flow rate setting state in the soft cleaning mode is achieved by the large hole 251 of the movable portion 250 communicating with the turning hole 262 of the fixed portion 260. This state is the maximum water discharge flow rate in the soft washing, and when the rotation angle of the motor is increased, the large hole of the movable portion 250 communicates with the recess 262b in which the recess depth decreases in the rotation direction L, so the rotation angle of the motor is increased. As a result, the flow rate of the washing water flowing out to the swirl flow path 84 decreases.

  When the movable part is rotated about 235 ° counterclockwise along the rotation direction L from FIG. 10A, the state shown in FIG. In FIG. 10D, the large hole 251 of the movable part 250 communicates with the concave part 263 a communicating with the rectilinear hole 263 of the fixed part 260, and the small hole 252 of the movable part 250 communicates with the swivel hole 262 of the fixed part 260. The minimum flow rate setting in the buttocks cleaning mode is achieved by communicating with the. That is, in the buttocks cleaning mode, the flow rate of the two flow paths is adjusted simultaneously to change the ratio of the flow rate discharged from the nozzle, the straight flow and the swirl flow, and the optimal flow rate and water discharge state (washing area and A feeling of cleaning) is realized. Further, the recess depth of the recess 263 a communicating with the butt hole 263 increases along the rotation direction L, and the recess depth of the recess 262 c communicating with the soft hole 262 also increases along the rotation direction L. Therefore, this state becomes the minimum water discharge flow rate in the buttocks cleaning mode, and the flow rate of the cleaning water during the buttocks cleaning increases by increasing the rotation angle of the motor.

  In this way, the washing water supplied to the flow rate adjustment / flow path switching valve 81 by the flow rate adjustment / flow path switching valve 81 is one of the bidet hole 261, the swivel hole 262, or the rectilinear hole 263, or a plurality thereof. Or, it is guided to all holes to determine the water channel and adjust the flow rate.

  Next, the flow rate adjustment and flow path switching characteristics of the flow rate adjustment / flow path switching valve 81 used in this embodiment will be described. FIG. 11A shows the cleaning water flowing out from the bidet hole 261 to the bidet flow path 83 with respect to the relative rotation angle of the fixed part 260 and the movable part 250 provided in the flow rate adjustment / flow path switching valve 81, and swirling from the swivel hole 262. It is a figure which shows the flow volume characteristic of the washing water which flows into the flow path 84, and the washing water which flows into the straight movement flow path 85 from the straight advance hole 263. The horizontal axis in FIG. 12 indicates the rotation angle from the origin position of the movable part 250, and the vertical axis indicates the flow rate of the cleaning water flowing out from each hole of the fixed part to each flow path in the cleaning nozzle body 80. In the rotation angle shown here, the rotation direction L of the movable part shown in FIG.

  A solid line Q1 represents a change in the flow rate of the wash water flowing through the bidet flow path 83, a dotted line Q2 represents a change in the flow rate of the wash water flowing through the swirl flow path 84, and a dashed line Q3 represents a change in the flow rate of the wash water flowing through the straight flow path 85. Show.

  As shown in FIG. 11 (a), the change in Q1 is that the cleaning water already flows through the bidet channel 83 at the rotation angle of the motor of 0 °, and the flow rate of the cleaning water flowing through the bidet channel 83 as the rotation angle increases. Increases to a maximum in the region of about 60-80 °. Further, as the rotation angle increases, the flow rate of the cleaning water flowing through the bidet channel 83 decreases, and the flow rate of the cleaning water flowing through the bidet channel 83 becomes zero when the rotation angle of the motor is about 120 °.

  Next, the change in Q2 will be described. When the rotation angle of the motor is about 95 °, the cleaning water begins to flow into the swirl flow path 84. The flow rate of the cleaning water increases as the rotation angle of the motor increases, and cleaning is performed in the region where the rotation angle of the motor is about 130 to 155 °. Water flow is maximized. When the rotation angle is further increased, the flow rate of the cleaning water starts to decrease. Before the communication between the large hole 251 and the concave portion 262b is lost when the rotation angle is around 220 °, the small hole 252 starts to communicate with the concave portion 262c communicating with the turning hole 262 of the fixing portion 260. Since it becomes simultaneous water flow, the wash water flowing through the swirl flow path 84 decreases to around 235 °. Thereafter, the flow rate of Q2 reaches a maximum value at a rotational angle of about 255 °, and then the flow rate decreases as the angle increases.

  Next, Q3 will be described. Since the rotation angle is about 90 °, the small hole 252 of the movable portion 250 communicates with the concave portion 263c communicating with the rectilinear hole 263 of the fixed portion 260, and cleaning water starts to flow into the rectilinear flow path 85. The value is shown and the flow rate becomes zero when the rotation angle is about 120 °. When the rotation angle is further increased, the large hole 251 of the movable portion 250 communicates with the concave portion 263a communicating with the rectilinear hole 263 of the fixed portion 260 at a rotation angle of about 220 °, and the washing water flows out from the cleaning outlet again. As the flow rate increases, the flow rate of the washing water increases and shows a maximum value at about 300 °.

  As shown in FIG. 11 (a), the washing water begins to flow out from another flow channel before the flow of the washing water from one flow channel stops, and the bidet flow channel 83 and the swirl flow channel 84 are obtained at any rotation angle. , The washing water is flowing out from any one of the straight flow paths 85, and the water stop section is not provided. Further, the flow rate adjusting / flow path switching valve is provided with a stopper at about 310 ° so that no further angle setting is possible.

  FIG. 11B shows the change in the flow rate of the cleaning water discharged from the flow rate adjustment / flow path switching valve 81 through the cleaning nozzle 82. Also in FIG. 11B, the horizontal axis indicates the rotation angle from the origin position of the movable portion 250, and the vertical axis indicates the flow rate of the cleaning water discharged through the cleaning nozzle 82. That is, the flow rate of the cleaning water is the total flow rate of Q1, Q2, and Q3 in FIG. When the rotation angle is 0 ° to 60 °, the flow rate adjustment range in the bidet cleaning mode, when the rotation angle is 155 ° to 215 °, the flow rate adjustment range is soft, and when the rotation angle is 235 ° to 295 °, This is the flow rate adjustment range. When the rotation angle is around 105 °, the flow rate adjustment / flow path switching valve 81 is fully open, and the washing water flows out from all the holes of the bidet flow path 83, the swirl flow path 84, and the straight flow path 85. In this way, the washing water supplied to the flow rate adjustment / flow path switching valve 81 by the flow rate adjustment / flow path switching valve 81 is one of the bidet hole 261, the swivel hole 262, or the rectilinear hole 263, or a plurality thereof. Or, it is guided to all holes to determine the water channel and adjust the flow rate. Further, in this embodiment, the wash water that flows out even in the areas other than the respective wash modes is substantially equal to or greater than the minimum water discharge flow rate in the actual use range of the flow rate adjustment / flow path switching valve 81. In this case, an excessive decrease in the flow rate is prevented, and overheating by the heat exchange unit 60 is prevented.

  Next, attachment of the cleaning water discharge unit 90 will be described. FIG. 12 is a perspective view for explaining the attachment of the cleaning water discharge unit 90. FIG. 13 is a perspective view of the cleaning water discharging unit as seen from the bottom surface direction. As shown in the figure, the flush water discharge unit 90 is fitted with a hole 512 provided in the support base 510 and a protrusion 102 provided in the casing, and the mounting flange 511 installed on the support base 510 is connected to the casing of the sanitary washing apparatus main body. This is done by fastening a screw to the mounting boss 101 provided in 100.

  FIG. 14 is a cross-sectional view showing a state of screw fixing between the mounting flange 511 and the mounting boss 101 provided on the casing 100. As shown in the drawing, the mounting boss 101 is composed of a large-diameter portion 101c1 on the root side and a small-diameter portion 101c2 on the tip side. An elastic member 110 on a bobbin having flange portions at both ends of the cylindrical portion is inserted into the small-diameter portion 101c2 of the mounting boss 101, and the mounting flange 511 is fitted in a recess between the flanges of the elastic member 110. In this state, the elastic member 110 is fixed from above by a set screw 112 via a washer 111. The elastic member 110 is made of silicon rubber. The size of the elastic member 110 is determined so that a sufficient gap is left between the mounting boss 101 and the elastic member 110 and between the mounting flange 511 and the elastic member 110 in the lateral direction. In other words, the mounting flange 511 is allowed to slightly change around the mounting boss 101 in the lateral direction while preventing a large shift.

  FIG. 15 is a cross-sectional view showing a fitting state between the hole 512 provided in the support base 510 and the protrusion 102 provided in the casing 100. As shown in the drawing, the protruding portion 102 is inserted into the hole 512 from below, and a concave elastic member 113 made of silicon rubber is interposed between the two. Note that the size of the elastic member 113 is determined so that a sufficient gap is left between the hole portion 512 and the elastic member 113 and between the protruding portion 102 and the elastic member 110 in the lateral direction. In other words, in the lateral direction, the protrusion 102 is prevented from being greatly displaced while allowing the minute change in the hole 512.

  Further, since the three-way valve / pulsation generating unit 70 and the washing nozzle unit 80 are integrally formed via the support base 510, the vibration source mass is reduced to the three-way valve / pulsation generation unit 70, the washing nozzle unit 80, and the support base 510. By increasing the sum as a sum, vibrations caused by pulsation, vibrations generated when the washing water to which pulsation has been added, vibration of the cleaning nozzle unit 80, and vibration using the nozzle drive motor 520 itself as a vibration source can be made difficult to occur. In addition, vibration control can be achieved by the vibration control action of the vibration proof rubber.

  By mounting the cleaning water discharge unit 90 having the above-described configuration, the vibration of the cleaning water discharge unit 90, that is, the vibration of the cleaning nozzle unit 80, the vibration using the nozzle drive motor 520 itself as a vibration source, and the three-way valve / pulsation generating unit 70 are driven. The vibration as a source can be absorbed by the elastic members 110 and 113. For this reason, these vibrations can be attenuated and prevented from being transmitted to the casing forming the sanitary washing device body. In particular, in this embodiment, since the cleaning water discharge unit 90 is mounted so that the members do not completely adhere to each other and a gap is formed, the vibration damping effect is even greater.

  Further, in this embodiment, as described above, the cleaning water is discharged from the cleaning nozzle unit 80 in a pulsating flow state in which the pressure periodically fluctuates up and down. However, the vibration is not transmitted to the casing by the mounting structure.

  In addition, although the elastic members 110 and 113 were made of silicon rubber, instead of this, other types of rubber such as urethane rubber may be used as material, or as long as they are elastically deformed instead of rubber, Other materials such as a resin such as an elastomer may be used.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and embodiments, and can of course be implemented in various forms without departing from the gist of the present invention. is there.

Waterway diagram of sanitary washing device in the present invention 2 (a) and 2 (b) are perspective views of a washing water discharge unit according to the present invention. Cross section of three-way valve / pulsation generating unit Explanatory drawing explaining the mode of the flow of the washing water by the pulsation generator 74 by this invention Schematic diagram schematically showing the installation of the three-way valve / pulsation generating unit Partial perspective view of flow control and flow path switching valve and cleaning nozzle Cross section of cleaning nozzle Movement of cleaning water in the cleaning nozzle 9 (a) and 9 (b) are top views of the movable portion and the fixed portion of the flow rate adjustment / flow path switching valve, respectively. FIGS. 10 (a) to 10 (d) show the origin and bidet cleaning state, the fully open state, the soft cleaning state, and the buttocks cleaning state by the movable portion and the fixed portion of the flow rate adjustment / flow path switching valve, respectively. 11 (a) and 11 (b) respectively show the flow rate of the cleaning water discharged from the bidet flow channel, the swirl flow channel, and the straight flow channel and the cleaning nozzle depending on the rotation angle of the movable part in the flow rate adjusting / flow channel switching valve. Flow rate of water discharged through The perspective view explaining attachment of a washing water discharging unit The perspective view which looked at the washing water discharge unit from the bottom. Sectional drawing which respectively shows the state of the screw fixation of the mounting flange provided in the support stand, and the mounting boss provided in the casing Sectional drawing which shows the fitting state of the hole provided in the support stand, and the protrusion provided in the casing

Explanation of symbols

50 ... Water supply means 60 ... Instantaneous heat exchanger (heating means)
71 ... Electromagnetic three-way valve 74 ... Pulsation generating means 75 ... Main flow path 76 ... Waste water flow path 81 ... Flow rate adjusting / flow path switching valve 82 ... Cleaning nozzle 100 ... Casing 110, 113 ... Elastic body 510 ... Support base

Claims (12)

Water supply means for taking in the cleaning water from the water supply port, heating means for heating the cleaning water taken in by the water supply means, pulsation generating means for adding pulsation to the heated cleaning water, and pulsation generated by the pulsation generating means A sanitary cleaning device comprising a cleaning nozzle for jetting cleaning water to which a human body has been added, and a casing for housing the water supply means, heating means, pulsation generating means and cleaning nozzle, wherein the pulsation generating means and the cleaning nozzle A sanitary washing apparatus, wherein the sanitary washing apparatus is attached to a support base, and the support base is fixed to the casing via an elastic body. 2. The sanitary washing apparatus according to claim 1, wherein the pulsation generating means is attached to the support base via a second elastic body. 3. The sanitary washing apparatus according to claim 1, wherein the heating means is an instantaneous heat exchanger that instantaneously heats the wash water to warm it. 4. The sanitary washing device according to claim 3, wherein the instantaneous heat exchanger and the support base are arranged in the vicinity, and a water outlet for introducing warm water from the instantaneous heat exchanger to the pulsation generating means is provided with the pulsation generation. A sanitary washing device, characterized in that it is arranged in the vicinity of the water inlet of the means. The sanitary washing device according to any one of claims 1 to 4, further comprising: a main flow channel for discharging washing water toward a human body upstream of the pulsation generating device; and a drainage flow channel for not discharging water toward the human body; And a sanitary washing device comprising a switching valve for switching the drainage flow path. 6. The sanitary washing apparatus according to claim 5, wherein the washing nozzle includes a plurality of flow paths. The sanitary washing device according to claim 6, wherein the switching valve includes a plurality of water passage portions having a water inlet and a plurality of water outlets upstream of the washing nozzle, and one or more of the water passage portions. This is a flow rate adjustment and flow path switching valve that can selectively switch wash water to one or more of the plurality of outlets by using a valve body equipped with Sanitary washing device characterized by that. 8. The sanitary washing apparatus according to claim 7, wherein the flow rate adjusting and flow path switching valve and the washing nozzle are integrated, and are freely movable between a storage position and a use position of the washing nozzle. Sanitary washing device to do. The sanitary washing apparatus according to any one of claims 5 to 8, wherein the switching valve is an electromagnetic three-way valve using a solenoid as a drive source. The sanitary washing device according to any one of claims 1 to 9, wherein the pulsation generating means reciprocates in a cylinder that forms part of a water supply path of the wash water, and the wash water flows by the reciprocation. A plunger that pulsates the cleaning water to the downstream of the cylinder, an electromagnetic solenoid that reciprocates the plunger, an excitation means that excites the solenoid, and a passage of the cleaning water downstream of the cylinder. A sanitary washing device comprising a check valve that allows The sanitary washing apparatus according to claim 9, wherein the pulsation generator and the electromagnetic three-way valve are integrated. 6. The sanitary washing device according to claim 5, wherein the pulsation generating device reciprocates in a cylinder forming a part of a cleaning water supply path, and pulsates in the flow of cleaning water by the reciprocating motion. A plunger that pumps wash water downstream of the cylinder, an electromagnetic solenoid that reciprocally drives the plunger, and an excitation means that excites the solenoid, and the pulsation generator and the switching valve, A sanitary washing device, which is integrated through an accumulator that attenuates water hammer by the pulsation generator.

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