JP2004068305A - Hygienic washing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hygienic washing device capable of obtaining a cleaning feeling and a cleaning force high in cleaning effect and corresponding to user's liking or physical condition. <P>SOLUTION: When a user set a water current by the use of a water force adjusting switch of a remote operating device 300, a controller 4 controls the pressure variation period of the delivery pressure of a pump 13, a pressure variation width, and central pressure on the basis of radio-transmitted signals from the remote operating device 300. When the user sets the widening angle of cleaning water by the use of the cleaning area adjusting switch of the remote operating device 300, the controller 4 controls the spreading angle of the cleaning water ejected from a hip nozzle 1 on the basis of the signals radio-transmitted from the remote operating device 300. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sanitary washing device for washing a local part of a human body.
[0002]
[Prior art]
2. Description of the Related Art Generally, a sanitary washing device for washing a local part of a human body is provided with a heating device for adjusting washing water used for washing to an appropriate temperature so as not to cause discomfort to the human body. Such a heating device mainly includes a hot water storage type heating device or an instantaneous type heating device.
[0003]
A sanitary washing device using a hot-water storage type heating device is provided with a hot water tank that stores a predetermined amount of washing water in advance and heats the washing water to a predetermined temperature by a built-in heater, and when cleaning a local part of a human body, The washing water heated to a predetermined temperature in the hot water tank is blown out from a nozzle by using tap water pressure or by pumping it with a pump or the like.
[0004]
On the other hand, the sanitary washing device using the instantaneous heating device heats the washing water to a predetermined temperature with a heating heater such as a ceramic heater having a high temperature rising rate and uses tap water when washing a local part of a human body. Or a method in which the pressure is fed by a pump or the like and ejected from a nozzle.
[0005]
Therefore, in a sanitary washing device using an instantaneous heating device, it is not necessary to maintain the washing water at a predetermined temperature in advance, and it is sufficient to supply power to the heater only during use. Can be. In addition, even when a large amount of washing water is used for cleaning a local part of the human body due to long-term washing or continuous use of a toilet, etc., the temperature of the washing water may drop below a predetermined temperature and cause discomfort to the human body. Can be prevented.
[0006]
[Problems to be solved by the invention]
2. Description of the Related Art In recent years, various functions of a sanitary washing device have been devised to realize washing according to a user's preference. For example, a function is provided for adjusting the water level of the cleaning water ejected from the nozzles in order to realize cleaning according to the user's preference. The user can adjust the level of the washing water spouted from the nozzle according to his / her preference.
[0007]
However, in a sanitary washing device using a hot-water storage type heating device, it is possible to increase the flow rate of the wash water. Cannot be obtained. On the other hand, in the sanitary washing device using the instantaneous heating device, since the instantaneous temperature rise of the washing water is required, it is difficult to increase the flow rate of the washing water ejected to the local area of the user. That is, in the sanitary washing device using the instantaneous heating device, the flow rate of the washing water ejected from the nozzle is limited. Therefore, the stimulation is weak, and a feeling of washing according to the user's preference cannot be obtained.
[0008]
SUMMARY OF THE INVENTION An object of the present invention is to provide a sanitary washing apparatus which has a high washing stimulating effect even with a small flow rate and which can obtain a washing feeling and a washing power according to a user's preference and physical condition.
[0009]
[Means for Solving the Problems]
The sanitary washing device according to the present invention is a sanitary washing device that ejects washing water supplied from a water supply source to a human body, and ejecting means that ejects the washing water and that can change the spread angle of the ejected washing water, Pressurizing means for applying pressure to the washing water supplied from the water supply source and applying pressure to the washing water to eject the washing water from the ejecting means; and control means for controlling the spread angle of the washing water ejected from the ejecting means. It is provided with.
[0010]
In the sanitary washing device according to the present invention, the washing water supplied from the water supply source is pressurized while being subjected to periodic pressure fluctuations by the pressurizing means. Therefore, even with a small flow rate, the cleaning stimulation effect is enhanced.
[0011]
Further, the spreading angle of the washing water spouted from the spouting means is controlled by the spreading angle control means and spouted toward the human body. Therefore, the user can obtain not only the adjustment of the flow rate but also various washing feelings and washing powers according to tastes and physical conditions.
[0012]
Spreading angle setting means for setting a spreading angle of the washing water spouted from the spouting means, wherein the control means controls a spreading angle of the washing water spouted from the spouting means based on the setting of the spreading angle setting means. May be. In this case, the spread angle of the wash water by the jetting means can be controlled based on the setting of the wash water spread angle setting means. Therefore, the user can adjust the spread angle of the washing water spouted from the spouting means and change the washing area.
[0013]
The spread angle setting means may include a switch capable of changing the spread angle of the washing water in a stepwise manner. In this case, the spread angle of the wash water spouted from the spouting means can be controlled stepwise based on the setting of the spread angle setting means. Therefore, the user can easily select the spread angle of the washing water and the washing area as desired.
[0014]
The spread angle setting means may include a switch capable of continuously changing the spread angle of the washing water. In this case, the spread angle of the wash water spouted from the spouting means can be controlled stepwise based on the setting of the spread angle setting means. Therefore, the user can easily adjust the spread angle of the washing water and the washing area as desired.
[0015]
The control means may continuously increase or decrease the spread angle of the washing water ejected from the ejection means based on the setting of the spread angle setting means. In this case, the spread angle of the washing water ejected from the ejection means can be continuously enlarged or reduced based on the setting of the spread angle setting means. Therefore, the user can continuously adjust the spread angle of the washing water and the washing area as desired.
[0016]
Command means for commanding an operation to repeat the continuous expansion or contraction of the spread angle of the washing water ejected from the jet means is further provided, and the control means responds to a command from the command means to cause the washing water jetted from the jet means. May be changed. In this case, the spread angle of the washing water spouted from the spouting means in response to a command from the commanding means can be continuously enlarged or reduced. Therefore, the user can repeatedly wash over a wide area.
[0017]
The control means may make the reduction speed smaller than the expansion speed of the washing water spread angle. In this case, the spreading angle of the washing water jetted from the jetting means is smaller at the reduction speed than at the expansion speed. Therefore, the cleaning water acts to remove dirt from the outside to the inside, and it is possible to prevent the scattering of dirt on the outer periphery of the surface to be cleaned.
[0018]
The jetting means may jet the cleaning water in a circular cross section. In this case, the cross section of the cleaning water jetted from the jetting means has a circular shape. Therefore, the user can clean the surface to be cleaned in a circular shape. As a result, the user can obtain various washing feelings according to his taste and physical condition.
[0019]
The jetting means may jet the cleaning water in an annular cross section. In this case, the cross section of the washing water jetted from the jetting means has an annular shape. Therefore, the user can clean the surface to be cleaned in an annular shape. As a result, the user can obtain various washing feelings according to his taste and physical condition.
[0020]
An ejection hole, a first flow path that guides cleaning water supplied from the pressure means to the ejection hole, a second flow path that guides cleaning water supplied from the pressure means to the ejection hole, It may include a rotating flow generating unit that generates a rotating flow in the cleaning water in the first flow path, and a flow rate adjusting unit that adjusts the flow rate of the cleaning water supplied to the first flow path and the second flow path. .
[0021]
In this case, the washing water can be ejected from the ejection hole via the first flow path and the second flow path of the ejection means. Further, since the first flow path and the second flow path are formed separately, the flow rates of the cleaning water flowing through the first flow path and the second flow path can be independently changed. Further, since a rotating flow of the washing water can be generated in the first flow path, a dispersed swirling flow can be ejected from the ejection holes. Therefore, by adjusting the flow rate of the washing water flowing through the first flow path and the second flow path, either one of the linear flow and the dispersed swirl flow, or the linear flow and the dispersed swirl flow according to the physical condition and preference of the user. A mixed stream with the stream can be ejected. Thereby, the spread angle of the washing water and the washing area can be changed.
[0022]
The ejection unit has an ejection hole, a flow path that guides cleaning water supplied from the pressurizing unit to the ejection hole, and a movable member having a conical outer peripheral surface movably provided in the ejection hole, The control means may include a driving means for moving the movable member. In this case, when the conical movable member provided in the ejection hole is taken out from the ejection hole, the washing water flows linearly without being affected by the movable member. Further, when the movable member is inserted into the ejection hole, the washing water is ejected along the outer peripheral surface of the movable member, so that the cross-section becomes a dispersed flow having a circular cross section. Therefore, the spread angle of the washing water changes depending on the position of the movable member, and the density of the washing water changes, so that a feeling of washing different from the adjustment of only the flow rate can be obtained. As a result, the user can obtain various washing feelings and detergency according to taste and physical condition.
[0023]
The jetting means has a jetting hole, a flow path for guiding the washing water supplied from the pressurizing means to the jetting hole, and a movable member having an inverted truncated conical outer surface movably provided in the jetting hole. The control means may include a driving means for moving the movable member.
[0024]
In this case, when the inverted frustoconical movable member provided in the ejection hole is taken out from the ejection hole, the washing water flows linearly without being affected by the movable member. Further, when the movable member is inserted into the ejection hole, the washing water is ejected along the outer peripheral surface of the movable member, so that the cross-section becomes an annular dispersed flow. Therefore, the spread angle of the washing water changes depending on the position of the movable member, and the density of the washing water changes, so that a feeling of washing different from the adjustment of only the flow rate can be obtained. As a result, the user can obtain various washing feelings and detergency according to taste and physical condition.
[0025]
The pressurizing means may include a reciprocating pump having a reciprocating pressurizing member. In this case, the cleaning water intermittently pressurized by the reciprocating pump can be ejected from the ejection holes. Therefore, even with a small amount of washing water, a high washing feeling and washing power can be given to the human body.
[0026]
The apparatus may further include pressure fluctuation setting means for setting the pressure fluctuation mode of the washing water, and the control means may control the pressure fluctuation mode by the pressurizing means based on the setting of the pressure fluctuation setting means. Here, the mode of the pressure fluctuation refers to the cycle (frequency) of the pressure fluctuation, the pressure fluctuation width, and the center pressure.
[0027]
In this case, it is possible to adjust the mode of the pressure fluctuation of the washing water ejected from the ejection means based on the setting of the pressure setting means. Therefore, the user can obtain various washing feelings and detergency depending on physical condition and taste.
[0028]
The pressure fluctuation setting means may include a switch for changing the mode of the pressure fluctuation stepwise. In this case, the mode of the pressure fluctuation of the washing water can be controlled stepwise based on the setting of the pressure fluctuation setting means. Therefore, the user can easily select various washing feelings and washing powers according to the physical condition and taste.
[0029]
The pressure fluctuation setting means may include a switch for continuously changing the mode of the pressure fluctuation. In this case, the mode of the pressure fluctuation of the washing water can be continuously controlled based on the setting of the pressure fluctuation setting means. Therefore, the user can easily adjust various washing feelings according to the physical condition and taste.
[0030]
The control means may continuously increase or decrease at least one of the cycle, the fluctuation width, and the center pressure of the pressure fluctuation of the washing water jetted from the jetting means based on the setting of the pressure fluctuation setting means. In this case, it is possible to continuously increase or decrease at least one of the cycle, the fluctuation width, and the center pressure of the pressure fluctuation of the washing water jetted from the jetting means based on the setting of the pressure fluctuation setting means. Therefore, the user can obtain various washing feelings according to the physical condition and taste.
[0031]
The apparatus further includes command means for commanding an operation of repeating at least one continuous increase or decrease of a cycle, a fluctuation width, and a center pressure of the pressure change of the washing water ejected from the ejection means, and the control means responds to the command means. The pressure fluctuation of the washing water spouted from the spouting means may be controlled. In this case, the operation of continuously increasing and decreasing at least one of the cycle, the fluctuation range, and the center pressure of the pressure change of the washing water ejected from the ejection means based on the instruction from the instruction means can be repeated. Thus, the user can relax and strain the skin.
[0032]
The jetting means may include a human washing nozzle device for jetting washing water to the human body. In this case, it is possible to change the cleaning area of a local part of the human body.
[0033]
The ejection means may include a toilet flush nozzle device for ejecting flush water to the toilet. In this case, the flush area of the toilet can be changed. Therefore, the toilet can be effectively cleaned.
[0034]
The control unit may include an electric drive unit that controls a spread angle of the washing water ejected from the ejection unit. In this case, the spread angle of the washing water spouted from the spouting means by the electric drive unit can be adjusted. Therefore, the user can remotely or automatically change the spread angle of the washing water spouted from the spouting means.
[0035]
The ejection unit includes a plurality of nozzle devices and a switching unit that selectively supplies cleaning water to any of the plurality of nozzle devices, and the electric drive unit switches the switching unit. In this case, the electric drive unit can adjust the spread angle of the cleaning water jetted from the jetting means and can selectively switch the nozzle device for supplying the cleaning water. Therefore, it is not necessary to provide a plurality of electric driving units, and space saving can be realized.
[0036]
The cleaning device may further include a heating unit that heats the cleaning water supplied from the water supply source and supplies the cleaning water to the pressurizing unit. In this case, the washing water supplied from the water supply source can be heated by the heating means and supplied to the pressurizing means. Therefore, the appropriately heated washing water can be ejected from the ejection holes of the ejection means.
[0037]
The heating means may be an instantaneous heating device that heats the cleaning water supplied from the water supply source while flowing the cleaning water. In this case, the washing water is heated instantaneously while flowing by the instantaneous heating device. Therefore, since the washing water is heated only when the sanitary washing device is used, power consumption can be minimized. Further, since a water storage tank for storing washing water is not required, space saving can be realized. Further, even when the cleaning time is long, the temperature of the cleaning water does not decrease.
[0038]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a sanitary washing device according to an embodiment of the present invention will be described.
[0039]
(First Embodiment)
FIG. 1 is a perspective view showing a state in which the sanitary washing device according to the first embodiment is mounted on a toilet.
[0040]
As shown in FIG. 1, the sanitary washing device 100 is mounted on a toilet 600. The tank 700 is connected to a water supply pipe and supplies flush water into the toilet bowl 600.
[0041]
The sanitary washing device 100 includes a main body 200, a remote control device 300, a toilet seat 400, and a lid 500.
[0042]
A toilet seat 400 and a lid 500 are attached to the main body 200 so as to be freely opened and closed. Further, the main body 200 is provided with a cleaning water supply mechanism including the nozzle unit 30 and has a built-in control unit. The control unit of the main body 200 controls the cleaning water supply mechanism based on a signal transmitted by the remote control device 300 as described later. Further, the control unit of the main body 200 also controls a heater built in the toilet seat 400, a deodorizing device (not shown) provided in the main body 200, a hot air supply device (not shown), and the like.
[0043]
FIG. 2 is a schematic diagram showing an example of the remote control device 300 in FIG.
As shown in FIG. 2, the remote control device 300 includes a plurality of LEDs (light emitting diodes) 301, a plurality of adjustment switches 302, a water pressure change switch 304, an area change switch 303, a bottom switch 305, a stimulation switch 306, a stop switch 307, A bidet switch 308, a drying switch 309, and a deodorizing switch 310 are provided.
[0044]
The user pushes down the adjustment switch 302, the area change switch 303, the water level change switch 304, the buttocks switch 305, the stimulus switch 306, the stop switch 307, the bidet switch 308, the drying switch 309, and the deodorization switch 310. Thereby, the remote control device 300 wirelessly transmits a predetermined signal to a control unit provided in the main body 200 of the sanitary washing device 100 described later. The control unit of the main body unit 200 receives a predetermined signal wirelessly transmitted from the remote operation device 300 and controls the washing water supply mechanism and the like.
[0045]
For example, when the user depresses the posterior switch 305 or the bidet switch 308, the nozzle unit 30 of the main unit 200 in FIG. 1 moves and the washing water is jetted. By depressing the stimulus switch 306, washing water for stimulating a local part of the human body is spouted from the nozzle part 30 of the main body part 200 in FIG. By pushing down the stop switch 307, the ejection of the washing water from the nozzle unit 30 is stopped.
[0046]
When the drying switch 309 is pressed down, warm air is blown from a warm air supply device (not shown) of the sanitary washing device 100 to a local part of the human body. By depressing the deodorizing switch 310, the surroundings are deodorized by the deodorizing device (not shown) of the sanitary washing device 100.
[0047]
The adjustment switches 302 include water pressure adjustment switches 302a, 302b, 302c, cleaning area adjustment switches 302d, 302e, 302f, temperature adjustment switches 302g, 302h, and nozzle position adjustment switches 302i, 302j.
[0048]
When the user presses down the nozzle position adjusting switches 302i and 302j, the position of the nozzle unit 30 of the main body 200 of the sanitary washing device 100 in FIG. 1 changes, and the user presses down the temperature adjusting switches 302g and 302h. Then, the temperature of the washing water ejected from the nozzle unit 30 changes. By depressing the water pressure adjustment switch 302a, the water pressure (the mode of pressure fluctuation) of the washing water spouted from the nozzle unit 30 changes stepwise, and by continuously depressing the water pressure adjustment switches 302b and 302c. The water force (the mode of pressure fluctuation) of the washing water ejected from the nozzle unit 30 changes. Here, the mode of the pressure fluctuation refers to the period of the pressure fluctuation, the fluctuation width, and the center pressure. Further, the depressing operation of the cleaning area adjustment switch 302d changes the jetting form of the washing water spouted from the nozzle portion 30 in a stepwise manner, and is continuously jetted from the nozzle portion 30 by depressing the 302e and 302f. The washing water jets change. Thereby, the spread angle of the cleaning water changes, and the cleaning area of the surface to be cleaned changes. A plurality of LEDs (light emitting diodes) 301 are turned on when the adjustment switch 302 is pressed.
[0049]
By depressing the water pressure change switch 304, the water pressure (the mode of pressure fluctuation) of the cleaning water jetted from the nozzle unit 30 continuously increases and decreases. Details will be described later.
[0050]
Further, by depressing the area change switch 303, the spread angle of the cleaning water spouted from the nozzle unit 30 changes, and the cleaning area of the surface to be cleaned continuously repeats enlargement and reduction. Details will be described later.
[0051]
Hereinafter, the main body 200 of the sanitary washing device 100 according to the present embodiment will be described. FIG. 3 is a schematic diagram illustrating a configuration of the main body 200 of the sanitary washing device 100 according to the first embodiment.
[0052]
The main unit 200 shown in FIG. 3 includes a control unit 4, a branch faucet 5, a strainer 6, a check valve 7, a constant flow valve 8, a water stop solenoid valve 9, a flow sensor 10, a heat exchanger 11, a temperature sensor 12a, 12b, a pump 13, a switching valve 14, and a nozzle unit 30. The nozzle unit 30 includes a posterior nozzle 1, a bidet nozzle 2, and a nozzle cleaning nozzle 3.
[0053]
As shown in FIG. 3, the branch faucet 5 is inserted into the water supply pipe 201. A strainer 6, a check valve 7, a constant flow valve 8, a water stop solenoid valve 9, a flow sensor 10, and a temperature sensor 12a are sequentially connected to a pipe 202 connected between the branch faucet 5 and the heat exchanger 11. It is interposed. Further, a temperature sensor 12b and a pump 13 are inserted into a pipe 203 connected between the heat exchanger 11 and the switching valve 14.
[0054]
First, purified water flowing through the water supply pipe 201 is supplied to the strainer 6 by the branch tap 5 as washing water. The strainer 6 removes dust and impurities contained in the cleaning water. Next, the check valve 7 prevents backflow of the washing water in the pipe 202. Then, the flow rate of the washing water flowing in the pipe 202 is kept constant by the constant flow valve 8.
[0055]
A relief pipe 204 is connected between the pump 13 and the switching valve 14, and a relief water pipe 205 is connected between the water stop solenoid valve 9 and the flow rate sensor 10. A relief valve 206 is inserted in the relief pipe 204. The relief valve 206 is opened when the pressure of the pipe 203, especially on the downstream side of the pump 13, exceeds a predetermined value, and prevents troubles such as breakage of equipment and disconnection of a hose at the time of abnormality. On the other hand, of the cleaning water whose flow rate is adjusted by the constant flow valve 8 and which is not sucked by the pump 13, the cleaning water is released from the water pipe 205. Thus, a predetermined back pressure acts on the pump 13 without being affected by the water supply pressure.
[0056]
Next, the flow rate sensor 10 measures the flow rate of the cleaning water flowing in the pipe 202 and gives the control unit 4 a measured flow rate value. Further, the temperature sensor 12a measures the temperature of the washing water flowing in the pipe 202, and gives the controller 4 a measured temperature value.
[0057]
Subsequently, the heat exchanger 11 heats the cleaning water supplied through the pipe 202 to a predetermined temperature based on a control signal given by the control unit 4. The temperature sensor 12b measures the temperature of the washing water heated to a predetermined temperature by the heat exchanger 11, and provides the controller 4 with the measured temperature.
[0058]
The pump 13 pumps the washing water heated by the heat exchanger 11 to the switching valve 14 based on a control signal given by the control unit 4. The switching valve 14 supplies cleaning water to one of the buttocks 1, the bidet nozzle 2, and the nozzle cleaning nozzle 3 of the nozzle unit 30 based on a control signal given by the control unit 4. As a result, washing water is ejected from any one of the posterior nozzle 1, the bidet nozzle 2, and the nozzle washing nozzle 3. Further, the switching valve 14 adjusts the flow rate of the washing water jetted from the nozzle unit 30 based on a control signal given by the control unit 4. Thereby, the flow rate of the washing water ejected from the nozzle unit 30 changes.
[0059]
The controller 4 controls the water shutoff solenoid valve 9 and the heat exchange based on a signal wirelessly transmitted from the remote control device 300 in FIG. 1, a measured flow rate value provided from the flow rate sensor 10 and a temperature measured value provided from the temperature sensors 12 a and 12 b. A control signal is given to the pump 11, the pump 13, and the switching valve 14.
[0060]
FIG. 4 is a partially cutaway sectional view showing an example of the structure of the heat exchanger 11.
As shown in FIG. 4, a meandering pipe 510 that is bent is embedded in a resin case 504. A flat ceramic heater 505 is provided so as to be in contact with the meandering pipe 510. As shown by the arrow Y, the cleaning water is supplied into the meandering pipe 510 from the water supply port 511, and is efficiently heated by the ceramic heater 505 while flowing through the meandering pipe 510, and is discharged from the discharge port 512.
[0061]
3 feedback-controls the temperature of the ceramic heater 505 of the heat exchanger 11 based on the measured temperature value provided by the temperature sensor 12b.
[0062]
In the present embodiment, the control unit 4 controls the temperature of the ceramic heater 505 of the heat exchanger 11 by feedback control, but is not limited to this, and controls the temperature of the ceramic heater 505 by feedforward control. Alternatively, composite control may be performed in which the ceramic heater 505 is controlled by feed-forward control when the temperature rises, and the ceramic heater 505 is controlled by feedback control in a steady state.
[0063]
FIG. 5 is a sectional view showing an example of the structure of the pump 13. The pump in FIG. 5 is a double-acting reciprocating pump.
[0064]
In FIG. 5, a cylindrical space 139 is formed in the main body 138. A pressure feeding piston 136 is provided in the cylindrical space 139. An X-shaped packing 136a is attached to an outer peripheral portion of the pressure feeding piston 136. The cylindrical space 139 is divided into a pump chamber 139a and a pump chamber 139b by the pumping piston 136.
[0065]
A cleaning water inlet PI is provided on one side of the main body 138, and a cleaning water outlet PO is provided on the other side. The heat exchanger 11 is connected to the washing water inlet PI via the pipe 203 of FIG. 3, and the switching valve 14 is connected to the washing water outlet PO via the pipe 203.
[0066]
The washing water inlet PI communicates with the pump chamber 139a via the internal flow path P1, the small chamber S1 and the small chamber S3, and communicates with the pump chamber 139b via the internal flow path P2, the small chamber S2 and the small chamber S4.
[0067]
The pump chamber 139a communicates with the washing water outlet PO via the small chamber S5, the small chamber S7, and the internal flow path P3. The columnar space 139b communicates with the washing water outlet PO via the small chamber S6, the small chamber S8, and the internal flow path P4.
[0068]
An umbrella packing 137 is provided in each of the small chambers S3, S4, S7, and S8.
[0069]
A gear 131 is attached to the rotation shaft of the motor 130, and the gear 132 is engaged with the gear 131. In addition, one end of a crankshaft 133 is rotatably attached to the gear 132 with one point support, and a pressure feeding piston 136 is attached to the other end of the crankshaft 133 via a piston holding portion 134 and a piston holding rod 135. ing.
[0070]
When the rotation axis of the motor 130 rotates based on the control signal given by the control unit 4 of FIG. 3, the gear 131 attached to the rotation axis of the motor 130 rotates in the direction of arrow R1, and the gear 132 moves in the direction of arrow R2. Rotate in the direction. Thereby, the pressure feeding piston 136 moves up and down in the direction of arrow Z in the figure.
[0071]
FIG. 6 is a schematic diagram for explaining the operation of the umbrella packing 137. For example, when the pressure-feeding piston 136 in FIG. 5 moves downward to increase the volume of the pump chamber 139a, the pressure in the pump chamber 139a becomes lower than the pressure in the small chamber S1, so that the pumping piston 136 is provided in the small chamber S3. The umbrella packing 137 is deformed as shown in FIG. As a result, the wash water supplied from the wash water inlet PI flows into the pump chamber 139a via the internal flow path P1, the small chamber S1, and the small chamber S3. In this case, since the pressure in the pump chamber 139a is lower than the pressure in the small chamber S7, the umbrella packing 137 provided in the small chamber S7 is not deformed in the state shown in FIG. Therefore, the washing water does not flow into the pump chamber 139a and is not discharged from the washing water outlet PO.
[0072]
On the other hand, when the pressure-feeding piston 136 in FIG. 5 moves upward to reduce the volume of the pump chamber 139a, the pressure in the pump chamber 139a becomes higher than the pressure in the small chamber S1, so that the pump piston 136 is provided in the small chamber S3. The umbrella packing 137 is not deformed in the state shown in FIG. As a result, the washing water in the small chamber S1 does not flow into the pump chamber 139a. In this case, the umbrella packing 137 provided in the small chamber S7 is deformed as shown in FIG. Therefore, the cleaning water in the pump chamber 139a is discharged from the cleaning water outlet PO via the small chamber S5, the small chamber S7, and the internal flow path P3.
[0073]
The umbrella packing 137 provided in the small chamber S4 is deformed as shown in FIG. 6B when the pumping piston 136 moves upward, and when the pumping piston 136 moves downward, The state shown in FIG. On the other hand, the umbrella packing 137 provided in the small chamber S8 is not deformed in the state shown in FIG. 6A when the pumping piston 136 moves upward, and when the pumping piston 136 moves downward. , And deforms as shown in FIG. Thereby, when the washing water in the pump chamber 139a is discharged from the washing water outlet PO, the washing water from the washing water inlet PI flows into the pump chamber 139b, and the washing water from the washing water inlet PI into the pump chamber 139a. When the cleaning water flows, the cleaning water in the pump chamber 139b is discharged from the cleaning water outlet PO.
[0074]
FIG. 7 is a diagram showing a pressure change of the pump 13 of FIG. The vertical axis in FIG. 7 indicates pressure, and the horizontal axis indicates time.
[0075]
As shown in FIG. 7, cleaning water at a pressure Pi is supplied to the cleaning water inlet PI of the pump 13. In this case, the pressure Pa of the washing water in the pump chamber 139a changes as shown by a dotted line by the vertical movement of the pressure feeding piston 136 in FIG. On the other hand, the pressure Pb of the cleaning water in the pump chamber 139b changes as shown by a broken line. The pressure Pout of the cleaning water discharged from the cleaning water outlet PO of the pump 13 periodically changes up and down around the pressure Pc as shown by a thick solid line.
[0076]
As described above, in the pump 13, the pressure of the cleaning water at the cleaning water inlet PI is increased by alternately applying pressure to the cleaning water in the pump chamber 139a or the pump chamber 139b by the vertical movement of the pressure feeding piston 136. Then, it is discharged from the washing water outlet PO.
[0077]
Hereinafter, a change in the discharge pressure based on the operation of the pump 13 will be described. In the sanitary washing device 100 according to the present embodiment, the flow rate of the washing water passing through the switching valve 14 is constant. However, by switching the switching valve 14, the following pressure fluctuation can be given to the washing water ejected from the posterior nozzle 1 or the bidet nozzle 2.
[0078]
FIGS. 8A to 8C are diagrams showing a change in pressure of the pump 13 due to a difference in water force set in the first embodiment. The vertical axis indicates the discharge pressure of the pump 13, and the horizontal axis indicates time. FIG. 8D is a diagram showing a pressure change at the center of fluctuation of the discharge pressure. The vertical axis indicates the pressure at the center of fluctuation of the discharge pressure, and the horizontal axis indicates time.
[0079]
FIG. 8A is a diagram illustrating the discharge pressure of the pump 13 when the user presses the water pressure adjustment switches 302a and 302b in FIG. 2 and sets the water pressure to “strong”. In this case, the control unit 4 increases the rotation speed of the motor 130 of the pump 13. This shortens the vertical movement cycle of the pressure-feeding piston 136 in FIG. As a result, the fluctuation frequency of the discharge pressure of the pump 13 increases, and the fluctuation cycle of the discharge pressure decreases. Further, the fluctuation center Po of the discharge pressure increases, and the fluctuation width of the discharge pressure increases.
[0080]
FIG. 8B is a diagram illustrating the discharge pressure of the pump 13 when the user presses the water pressure adjustment switches 302a, 302b, and 302c in FIG. 2 and sets the water pressure to “medium”. In this case, the control unit 4 sets the rotation speed of the motor 130 to a medium level. Thereby, the vertical movement cycle of the pressure-feeding piston 136 in FIG. 5 becomes medium. As a result, the fluctuation frequency of the discharge pressure of the pump 13 becomes medium, and the fluctuation cycle of the discharge pressure becomes medium. Further, the fluctuation center Po of the discharge pressure is medium, and the fluctuation width of the discharge pressure is medium.
[0081]
FIG. 8C is a diagram showing the discharge pressure of the pump 13 when the user presses the water pressure adjustment switches 302a and 302c in FIG. 2 and sets the water pressure to “weak”. In this case, the control unit 4 reduces the rotation speed of the motor 130. Thereby, the vertical movement cycle of the pressure-feeding piston 136 in FIG. 5 is lengthened. As a result, the fluctuation frequency of the discharge pressure of the pump 13 decreases, and the fluctuation cycle of the discharge pressure increases. Also, the center of fluctuation Po of the discharge pressure of the pump 13 is reduced, and the range of fluctuation of the discharge pressure is reduced.
[0082]
When the user presses the water pressure change switch 304 in FIG. 2, the control unit 4 repeats periodically increasing and decreasing the rotation speed of the motor 130. Thereby, the vertical movement cycle of the pumping piston 136 in FIG. 5 periodically increases and decreases. As a result, the fluctuation cycle of the discharge pressure of the pump 13, the fluctuation center Po of the discharge pressure, and the fluctuation width of the discharge pressure repeatedly increase and decrease periodically. That is, as shown in FIGS. 8A to 8C, the mode of the pressure fluctuation is periodically changed.
[0083]
In the sanitary washing device 100 according to the present embodiment, the adjustment of the water force is performed by changing the rotation speed of the pump 13. Accordingly, the user can adjust the flow rate (average pressure), the pressure fluctuation width, and the pressure fluctuation cycle of the cleaning water ejected from the nozzle unit 30 by using the water pressure adjustment switches 302a, 302b, and 302c.
[0084]
As described above, by changing not only the flow rate of the washing water but also the pressure fluctuation width and the pressure fluctuation cycle, a feeling of cleaning different from the adjustment of only the flow rate can be obtained. Therefore, various washing feelings according to the user's preference can be obtained.
[0085]
In the sanitary washing device 100 according to the present embodiment, it is preferable to control the pressure fluctuation width and the pressure fluctuation cycle optimally in accordance with the posterior nozzle 1 and the bidet nozzle 2, respectively. Thereby, comfort and usability are improved.
[0086]
9A is a longitudinal sectional view of the switching valve 14, FIG. 9B is a sectional view taken along line AA of the switching valve 14 of FIG. 9A, and FIG. 9C is FIG. FIG. 9A is a sectional view taken along line BB of the switching valve 14 of FIG. 9A, and FIG. 9D is a sectional view taken along line CC of the switching valve 14 of FIG.
[0087]
The switching valve 14 shown in FIG. 9 includes a motor 141, an inner cylinder 142, and an outer cylinder 143.
[0088]
The inner cylinder 142 is inserted into the outer cylinder 143, and the rotation shaft of the motor 141 is attached to the inner cylinder 142. The motor 141 performs a rotation operation based on a control signal provided by the control unit 4. When the motor 141 rotates, the inner cylinder 142 rotates.
[0089]
As shown in FIGS. 9A, 9B, 9C, and 9D, a washing water inlet 143a is provided at one end of the outer cylinder 143, and washing water outlets 143b, 143c is provided, a washing water outlet 143d is provided at a position different from the side washing water outlets 143b, 143c, and a washing water outlet 143e is provided at a position different from the side washing water outlets 143b, 143c, 143d. . Holes 142e, 142f, 142g are provided at different positions of the inner cylinder 142. As shown in FIGS. 9B and 9C, chamfers (recesses) formed by curves and straight lines are formed around the holes 142e and 142f, and FIG. As shown in (), a chamfer (concave portion) composed of a straight line is formed.
[0090]
By the rotation of the inner cylinder 142, the hole 142e can be opposed to the washing water outlet 143b or 143c of the outer cylinder 143, the hole 142f can be opposed to the washing water outlet 143d of the outer cylinder 143, and the hole 142g is The washing water outlet 143e of the outer cylinder 143 can be opposed.
[0091]
3 is connected to the washing water inlet 143a, the bidet nozzle 2 is connected to the washing water outlet 143b, and the first flow path of the posterior nozzle 1 is connected to the washing water outlet 143c. The second flow path of the posterior nozzle is connected to the water outlet 143d, and the nozzle cleaning nozzle 3 is connected to the cleaning water outlet 143e.
[0092]
FIG. 10 is a sectional view showing the operation of the switching valve 14 of FIG.
FIGS. 10A to 10F show a state in which the motor 141 of the switching valve 14 is rotated by 0, 90, 135, 180, 225, and 270 degrees, respectively.
[0093]
First, as shown in FIG. 10A, when the motor 141 is not rotated (0 degree), the chamfer (recess) around the hole 142 e of the inner cylinder 142 faces the washing water outlet 143 b of the outer cylinder 143. I do. Therefore, the washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a, and flows out from the washing water outlet 143b as shown by the arrow W1.
[0094]
Next, as shown in FIG. 10B, when the motor 141 rotates the inner cylinder 142 by 90 degrees, the chamfered portion (recess) around the hole 142g of the inner cylinder 142 is flushed with the washing water of the outer cylinder 143. It faces the outlet 143e. Therefore, the washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a and flows out from the washing water outlet 143e as indicated by the arrow W2.
[0095]
Next, as shown in FIG. 10C, when the motor 141 rotates the inner cylinder 142 by 135 degrees, a part of the chamfer (recess) around the hole 142 g of the inner cylinder 142 becomes part of the outer cylinder 143. A part of the chamfer (recess) around the hole 142 e of the inner cylinder 142 faces the cleaning water outlet 143 c of the outer cylinder 143 while facing the cleaning water outlet 143 e. Therefore, a small amount of washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a and flows out from the washing water outlets 143c and 143e as indicated by arrows W2 and W3.
[0096]
Next, as shown in FIG. 10D, when the motor 141 rotates the inner cylinder 142 by 180 degrees, the chamfered portion (recess) around the hole 142 e of the inner cylinder 142 becomes flush water of the outer cylinder 143. It faces the outlet 143c. Therefore, the washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a, and flows out from the washing water outlet 143c as indicated by the arrow W3.
[0097]
Next, as shown in FIG. 10E, when the motor 141 rotates the inner cylinder 142 by 225 degrees, a part of the chamfer (recess) around the hole 142 e of the inner cylinder 142 becomes part of the outer cylinder 143. And a part of a chamfer (recess) around the hole 142f of the inner cylinder 142 faces the cleaning water outlet 143d of the outer cylinder 143. Therefore, a small amount of washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a, and flows out from the washing water outlets 143c and 143d as indicated by arrows W3 and W4.
[0098]
As shown in FIG. 10F, when the motor 141 rotates the inner cylinder 142 by 270 degrees, the chamfered portion (recess) around the hole 142 f of the inner cylinder 142 becomes the washing water outlet of the outer cylinder 143. 143d. Therefore, the washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a and flows out from the washing water outlet 143d as indicated by an arrow W4.
[0099]
As described above, when the motor 141 rotates based on the control signal from the control unit 4, any of the holes 142e, 142f, and 142g of the inner cylinder 142 faces the washing water outlets 143b to 143e of the outer cylinder 143, The washing water flowing from the washing water inlet 143a flows out of any of the washing water outlets 143b to 143e.
[0100]
FIG. 11 shows the flow rate of the wash water flowing from the wash water outlets 143c and 143d of the switching valve 14 to the posterior nozzle 1, the flow rate of the wash water flowing out of the wash water outlet 143b to the bidet nozzle 2, and the nozzle cleaning from the wash water outlet 143e. FIG. 4 is a diagram showing a flow rate of cleaning water flowing out to a nozzle 3. The horizontal axis in FIG. 11 indicates the rotation angle of the motor 141, and the vertical axis indicates the flow rate of the wash water flowing out of the wash water outlets 143b to 143e. Further, a solid line Q1 indicates a change in the flow rate of the wash water flowing out of the washing water outlet 143c to the buttocks nozzle 1, and a dashed line Q2 indicates a change in the flow rate of the wash water flowing out of the wash water outlet 143d to the buttocks nozzle 1. A dotted line Q3 indicates a change in the flow rate of the wash water flowing out of the wash water outlet 143b to the bidet nozzle 2, and a broken line Q4 indicates a change in the flow rate of the wash water flowing out of the wash water outlet 143e to the nozzle wash nozzle 3.
[0101]
For example, as shown in FIG. 11, when the motor 141 does not rotate (0 degree), the flow rate Q3 of the washing water flowing out from the washing water outlet 143b to the bidet nozzle 2 has a maximum value. Then, as the rotation angle of the motor 141 increases, the flow rate Q3 of the wash water flowing out of the wash water outlet 143b to the bidet nozzle 2 decreases, and the flow rate Q4 of the wash water flowing out of the wash water outlet 143e to the nozzle cleaning nozzle 3 increases. .
[0102]
Next, when the motor 141 rotates by 90 degrees, the flow rate Q4 of the cleaning water flowing out from the cleaning water outlet 143e to the nozzle cleaning nozzle 3 indicates the maximum value. Then, as the rotation angle of the motor 141 further increases, the flow rate Q4 of the wash water flowing out of the wash water outlet 143e to the nozzle cleaning nozzle 3 decreases, and the flow rate Q1 of the wash water flowing out of the wash water outlet 143c to the buttocks nozzle 1 decreases. To increase.
[0103]
Subsequently, when the motor 141 is rotated by 180 degrees, the flow rate Q1 of the washing water flowing out from the washing water outlet 143c to the buttocks nozzle 1 indicates the maximum value. Then, as the rotation angle of the motor 141 further increases, the flow rate Q1 of the wash water flowing out of the washing water outlet 143c to the buttocks nozzle 1 decreases, and the flow rate Q2 of the wash water flowing out of the wash water outlet 143d to the buttocks nozzle 1 increases. I do.
[0104]
Subsequently, when the motor 141 rotates 270 degrees, the flow rate Q2 of the washing water flowing out from the washing water outlet 143d to the buttocks nozzle 1 shows the maximum value. Then, as the rotation angle of the motor 141 further increases, the flow rate Q2 of the wash water flowing from the wash water outlet 143d to the buttocks nozzle 1 decreases, and the flow rate Q3 of the wash water flowing from the wash water outlet 143b to the bidet nozzle 2 increases. .
[0105]
As described above, the flow rate of the washing water flowing out from the washing water outlets 143b to 143e can be controlled by the control unit 4 controlling the rotation angle of the motor 141 of the switching valve 14. Further, regardless of the rotation angle of the motor 141 of the switching valve 14, any one of the washing water outlets 142e, 142f, 142g or a chamfer (recess) around them is opposed to any one of the washing water outlets 143b to 143e. Therefore, the flow path of the wash water is not blocked, and the wash water supplied from the wash water inlet 143a flows out of any of the wash water outlets 143b to 143e.
[0106]
Next, the nozzle unit 30 of FIG. 3 will be described. FIG. 12 is a schematic sectional view of the nozzle section 30 and the switching valve 14 of FIG.
[0107]
As shown in FIG. 12, the washing water outlets 143c and 143d of the switching valve 14 are connected to the posterior nozzle 1, the washing water outlet 143b of the switching valve 14 is connected to the bidet nozzle 2, and the washing water outlet 143e of the switching valve 14 is The nozzle is connected to the cleaning nozzle 3.
[0108]
First, the configuration of the posterior nozzle 1 will be described, then the configuration of the bidet nozzle 2 will be described, and finally, the configuration of the nozzle cleaning nozzle 3 will be described.
[0109]
The posterior nozzle 1 includes a cylindrical piston portion 20, a cylindrical cylinder portion 21, seal packings 22a and 22b, and a spring 23.
[0110]
An ejection hole 25 for ejecting cleaning water is formed near the tip of the piston portion 20. At the rear end of the piston part 20, flange-shaped stopper parts 26a and 26b are provided. Further, seal packings 22a and 22b are mounted on the stopper portions 26a and 26b, respectively. A first flow path 27a is formed inside the piston portion 20 and communicates with the ejection hole 25 from the rear end surface, and communicates with the ejection hole 25 from the peripheral surface of the piston portion 20 between the stopper portion 26a and the stopper portion 26b. A second flow path 27b is formed. Further, a cylindrical vortex chamber 29 is formed around the ejection hole 25, and a contraction portion 31 is interposed between the first flow path 27 a and the cylindrical vortex chamber 29.
[0111]
On the other hand, the cylinder portion 21 includes a small-diameter portion on the front end side, an intermediate portion having an intermediate diameter, and a large-diameter portion on the rear end side. As a result, a stopper surface 21c is formed between the small diameter portion and the intermediate portion, against which the stopper portion 26a of the piston portion 20 can abut via the seal packing 22a. A stopper surface 21b is formed on the stopper portion 26b of the piston portion 20 with which the stopper portion 26b can abut via a seal packing 22b. A washing water inlet 24a is provided on the rear end surface of the cylinder portion 21, a washing water inlet 24b is provided on a peripheral surface of an intermediate portion of the cylinder portion 21, and an opening 21a is provided on a tip surface of the cylinder portion 21. Is provided. The internal space of the cylinder 21 serves as a temperature fluctuation buffer 28. The washing water inlet 24a is eccentrically provided at a position different from the center axis of the cylinder portion 21. The washing water inlet 24a is connected to the washing water outlet 143c of the switching valve 14, and the washing water inlet 24b is connected to the washing water outlet 143d of the switching valve 14. When the piston part 20 projects most from the cylinder part 21, the washing water inlet 24b communicates with the second flow path 27b. Details of the connection of the washing water inlet 24b with the second flow path 27b will be described later.
[0112]
The piston portion 20 is movably inserted into the cylinder portion 21 such that the stopper portion 26b is located within the temperature fluctuation buffer portion 28 and the tip end protrudes from the opening portion 21a.
[0113]
Further, the spring 23 is disposed between the stopper 26 a of the piston 20 and the periphery of the opening 21 a of the cylinder 21, and urges the piston 20 toward the rear end of the cylinder 21.
[0114]
A minute gap is formed between the outer peripheral surfaces of the stopper portions 26a and 26b of the piston portion 20 and the inner peripheral surface of the cylinder portion 21, and the gap between the outer peripheral surface of the piston portion 20 and the inner peripheral surface of the opening portion 21a of the cylinder portion 21 is formed. A minute gap is formed between them.
[0115]
Next, the bidet nozzle 2 includes a cylindrical piston portion 20e, a cylindrical cylinder portion 21e, a seal packing 22e, and a spring 23e.
[0116]
An ejection hole 25e for ejecting cleaning water is formed near the tip of the piston portion 20e. A flange-shaped stopper portion 26e is provided at the rear end of the piston portion 20e. A seal packing 22e is mounted on the stopper 26e. Inside the piston portion 20e, a flow path 27e communicating from the rear end face to the ejection hole 25 is formed.
[0117]
On the other hand, the cylinder portion 21e includes a small diameter portion on the front end side and a large diameter portion on the rear end side. As a result, a stopper surface 21f is formed between the small diameter portion and the large diameter portion so that the stopper portion 26e of the piston portion 20e can contact via the seal packing 22e. A washing water inlet 24e is provided on a rear end surface of the cylinder portion 21e, and an opening 21g is provided on a front end surface of the cylinder portion 21e. The internal space of the cylinder part 21e becomes the temperature fluctuation buffer part 28e. The washing water inlet 24e is eccentrically provided at a position different from the center axis of the cylinder 21e. The washing water inlet 24e is connected to the washing water outlet 143b of the switching valve 14.
[0118]
The piston portion 20e is movably inserted into the cylinder portion 21e such that the stopper portion 26e is located inside the temperature fluctuation buffering portion 28e, and the tip portion protrudes from the opening portion 21g.
[0119]
Further, the spring 23e is disposed between the stopper 26e of the piston 20e and the periphery of the opening 21g of the cylinder 21e, and biases the piston 20e toward the rear end of the cylinder 21e.
[0120]
A minute gap is formed between the outer peripheral surface of the stopper portion 26e of the piston portion 20e and the inner peripheral surface of the cylinder portion 21e, and between the outer peripheral surface of the piston portion 20e and the inner peripheral surface of the opening 21g of the cylinder portion 21e. A minute gap is formed.
[0121]
Next, the nozzle cleaning nozzle 3 is configured by a cylindrical ejection part 20k. An ejection hole 25k for ejecting the washing water to the buttocks nozzle 1 side and an ejection hole 25m for ejecting the washing water to the bidet nozzle 2 side are formed near the tip of the ejection portion 20k. A washing water inlet 24k is provided at the rear end of the jetting part 20k. A flow path 27k is formed from the washing water inlet 24k provided at the rear end of the jetting part 20k to the jetting hole 25k and the jetting hole 25m. The washing water inlet 24k is connected to the washing water outlet 143e of the switching valve 14.
[0122]
As a result, the washing water supplied from the washing water outlet 143e of the switching valve 14 is ejected from the ejection holes 25k and 25m through the washing water inlet 24k of the ejection portion 20k of the nozzle washing nozzle 3 and the flow path 27k. You. The assembling nozzle 1 and the bidet nozzle 2 are washed by the washing water ejected from the ejection holes 25k and 25m.
[0123]
Next, the operation of the buttocks nozzle 1 and the bidet nozzle 2 of FIG. 12 will be described. First, the operation of the posterior nozzle 1 will be described, and then the operation of the bidet nozzle 2 will be described. FIG. 13 is a cross-sectional view for explaining the operation of the buttocks nozzle 1 of FIG.
[0124]
As shown in FIG. 13A, when the cleaning water is not supplied from the cleaning water inlets 24a and 24b of the cylinder portion 21, the piston portion 20 retreats in the direction opposite to the direction of the arrow X by the elastic force of the spring 23, It is housed in the cylinder part 21. As a result, the piston portion 20 is in a state where it does not protrude the most from the opening 21a of the cylinder portion 21. At this time, the temperature fluctuation buffer portion 28 is not formed in the cylinder portion 21.
[0125]
Next, as shown in FIG. 13B, when the supply of the washing water is started from the washing water inlet 24a of the cylinder portion 21, the pressure of the washing water causes the piston portion 20 to oppose the elastic force of the spring 23 with an arrow. Go slowly in the X direction. As a result, the temperature fluctuation buffer 28 is formed in the cylinder 21 and the washing water flows into the temperature fluctuation buffer 28.
[0126]
Since the washing water inlet 24a is provided at a position eccentric with respect to the central axis of the cylinder part 21, the washing water flowing into the temperature fluctuation buffer part 28 is returned in a spiral as shown by the arrow V. Part of the washing water of the temperature fluctuation buffer 28 passes through a minute gap between the outer peripheral surfaces of the stopper portions 26a and 26b of the piston portion 20 and the inner peripheral surface of the cylinder portion 21 and the outer peripheral surface of the piston portion 20 and the cylinder portion. The gas flows out of the minute gap between the inner peripheral surface of the opening 21a of the piston 21 and is supplied to the cylindrical vortex chamber 29 through the first flow path 27a of the piston 20, and is slightly ejected from the ejection hole 25. Details of the cylindrical vortex chamber 29 will be described later.
[0127]
When the piston portion 20 further advances, as shown in FIG. 13C, the stopper portions 26a and 26b come into water-tight contact with the stopper surfaces 21c and 21b of the cylinder portion 21 via the seal packings 22a and 22b. Thereby, the minute gap between the outer peripheral surfaces of the stopper portions 26a and 26b of the piston portion 20 and the inner peripheral surface of the cylinder portion 21 causes the outer peripheral surface of the piston portion 20 and the inner peripheral surface of the opening portion 21a of the cylinder portion 21 to move from each other. The flow path leading to the minute gap therebetween is blocked. Further, the cleaning water supplied from the cleaning water inlet 24b is supplied to the cylindrical vortex chamber 29 through the second flow path 27b of the piston section 20. Thereby, the cleaning water supplied to the cylindrical vortex chamber 29 through the second flow path 27b of the piston section 20 is mixed with the cleaning water supplied through the first flow path 27a of the piston section 20, and the ejection holes 25 are formed. Squirted from.
[0128]
As described above, the washing water supplied from the washing water outlets 143c and 143d of the switching valve 14 is supplied to the first flow path 27a and the second passage 27a in the piston portion 20 through the washing water inlets 24a and 24b of the cylinder portion 21. It is guided to the cylindrical vortex chamber 29 through the flow path 27b, and is ejected from the ejection hole 25 through the cylindrical vortex chamber 29.
[0129]
Next, the operation of the bidet nozzle 2 in FIG. 12 will be described. FIG. 14 is a cross-sectional view for explaining the operation of the bidet nozzle 2 of FIG.
[0130]
First, as shown in FIG. 14A, when the washing water is not supplied from the washing water inlet 24e of the cylinder 21e, the piston 20e retreats in the direction opposite to the direction of the arrow X by the elastic force of the spring 23e, It is housed in the cylinder part 21e. As a result, the piston portion 20e is in a state where it does not protrude the most from the opening 21g of the cylinder portion 21e. At this time, the temperature fluctuation buffer 28e is not formed in the cylinder 21e.
[0131]
Next, as shown in FIG. 14B, when the supply of the washing water is started from the washing water inlet 24e of the cylinder portion 21e, the pressure of the washing water causes the piston portion 20e to oppose the elastic force of the spring 23e with an arrow. Go slowly in the X direction. Thus, a temperature fluctuation buffer 28e is formed in the cylinder 21e, and the washing water flows into the temperature fluctuation buffer 28e.
[0132]
Since the cleaning water inlet 24e is provided at a position eccentric with respect to the central axis of the cylinder portion 21e, the cleaning water flowing into the temperature fluctuation buffering portion 28e is returned in a spiral as indicated by an arrow V. Part of the washing water in the temperature fluctuation buffer 28e passes through a minute gap between the outer peripheral surface of the stopper 26e of the piston 20e and the inner peripheral surface of the cylinder 21e, and the outer peripheral surface of the piston 20e and the cylinder 21e. The gas flows out of the minute gap between the opening 21g and the inner peripheral surface, and is slightly jetted from the jet hole 25e through the flow path 27e of the piston 20e.
[0133]
When the piston portion 20e further advances, as shown in FIG. 14C, the stopper portion 26e comes into contact with the stopper surface 21f of the cylinder portion 21e through the seal packing 22e in a watertight manner. As a result, the gap between the outer peripheral surface of the piston portion 20e and the inner peripheral surface of the opening 21g of the cylinder portion 21e is determined by the minute gap between the outer peripheral surface of the stopper portion 26e of the piston portion 20e and the inner peripheral surface of the cylinder portion 21e. The flow path leading to the minute gap is blocked. Thereby, the gas is ejected from the ejection hole 25e through the flow path 27e of the piston portion 20e.
[0134]
As described above, the washing water supplied from the washing water outlet 143b of the switching valve 14 is ejected from the circular ejection hole 25e through the flow passage 27e in the piston 20e through the washing water inlet 24e of the cylinder 21e.
[0135]
Next, FIG. 15 is a schematic view of the tip of the piston portion 20 of the buttocks nozzle 1 of FIG. FIG. 15A shows a case where the tip of the piston section 20 is viewed from above, and FIG. 15B shows a case where the tip of the piston section 20 is viewed from the side.
[0136]
First, as shown in FIG. 15B, the first flow path 27a is connected to the peripheral surface of a cylindrical cylindrical vortex chamber 29, and the second flow path 27b is connected to the bottom of the cylindrical vortex chamber 29. It is connected. Wash water from the wash water outlets 143c and 143d of the switching valve 14 is supplied to the first flow path 27a and the second flow path 27b.
[0137]
As shown in FIG. 15A, the cleaning water supplied from the first flow path 27a to the cylindrical vortex chamber 29 is swirled as indicated by arrow Z due to the curved shape of the inner peripheral surface of the cylindrical vortex chamber 29. Flow. On the other hand, the washing water supplied to the cylindrical vortex chamber 29 from the second flow path 27b flows in a straight line vertically upward.
[0138]
In this manner, in the cylindrical swirl chamber 29, the swirling washing water in the first flow path 27a and the linear washing water in the second flow path 27b are mixed, and the washing water is ejected from the ejection holes 25. .
[0139]
For example, when the flow rate of the cleaning water supplied from the first flow path 27a is higher than the flow rate of the cleaning water supplied from the second flow path 27b, the cleaning water mixed in the cylindrical vortex chamber 29 has a cylindrical shape. In order to strongly maintain the spiral state due to the curved surface shape of the cylindrical vortex chamber 29, the vortex is ejected as a dispersed swirling flow at a wide angle indicated by an arrow H shown in FIG. On the other hand, when the flow rate of the cleaning water supplied from the second flow path 27b is larger than the flow rate of the cleaning water supplied from the first flow path 27a, the cleaning water mixed in the cylindrical vortex chamber 29 is linear. In order to maintain the state strongly, the jet is ejected as a straight stream at a narrow angle indicated by an arrow S shown in FIG.
[0140]
Therefore, the control unit 4 controls the motor 141 of the switching valve 14 to change the flow rate ratio between the washing water outlets 143c and 143d, so that the ejection form of the washing water ejected from the ejection holes 25 changes.
[0141]
In the present embodiment, when the washing area adjusting switch 302f is pressed after the pushing of the posterior switch 305, the flow rate of the washing water at the washing water outlet 143c becomes larger than the flow rate of the washing water at the washing water outlet 143d. The jet form of the air approaches a linear flow. Thereby, the spread angle of the cleaning water is reduced. When the cleaning area adjustment switch 302e is pressed after the push switch 305 is pressed, the flow rate of the cleaning water at the cleaning water outlet 143d becomes larger than the flow rate of the cleaning water at the cleaning water outlet 143c, and the jetting form of the cleaning water is dispersed and swirled. Approach the flow. As a result, the spread angle of the cleaning water increases.
[0142]
When the washing area adjusting switch 302d having a large value is pressed after the pushing of the posterior switch 305, the flow rate of the washing water at the washing water outlet 143c becomes larger than the flow rate of the washing water at the washing water outlet 143d. The jet form of the air approaches a linear flow. Thereby, the spread angle of the cleaning water is reduced. When the washing area adjustment switch 302d having a small value is pushed after the pushing of the posterior switch 305, the flow rate of the washing water at the washing water outlet 143d becomes larger than the flow rate of the washing water at the washing water outlet 143c, and the ejection of the washing water is performed. The morphology approaches a distributed swirling flow. As a result, the spread angle of the cleaning water increases.
[0143]
FIGS. 16A to 16E are explanatory diagrams illustrating the relationship between the rotation angle of the switching valve, the driving state of the pump, and the nozzle that ejects cleaning water according to the first embodiment.
[0144]
FIGS. 16A to 16E show a state in which the switching valve 14 is rotated by 0 degree, 90 degrees, 180 degrees, 225 degrees, and 270 degrees, respectively.
[0145]
First, when the switching valve 14 is not rotated (0 degree), the driving state of the pump is on, and the washing water flows out of the washing water outlet 143b as shown by an arrow W1 in FIG. From the bidet nozzle 2.
[0146]
Next, while the switching valve 14 is rotated from 0 degrees to 90 degrees, the driving state of the pump is off, so that the washing water does not flow out.
[0147]
Next, when the switching valve 14 is rotated 90 degrees, the driving state of the pump is on, and the washing water flows out from the washing water outlet 143e as shown by an arrow W2 in FIG. It is ejected from the nozzle cleaning nozzle 3.
[0148]
Next, while the switching valve 14 is rotated from 90 degrees to 180 degrees, the driving state of the pump is off, so that the washing water does not flow out.
[0149]
Next, when the switching valve 14 is rotated by 180 degrees, the driving state of the pump is on, and the washing water flows out from the washing water outlet 143c as shown by an arrow W3 in FIG. Spouts from nozzle 1. In this case, as described in FIG. 15B, the washing water is jetted as a dispersed swirling flow.
[0150]
Next, while the switching valve 14 is rotated from 180 degrees to 270 degrees, the driving state of the pump is ON, and the washing water is supplied to the washing water outlets 143c and 143d as shown by arrows W3 and W4 in FIG. From the buttocks nozzle 1. In this case, as described with reference to FIG. 15B, the flow ratio of the wash water flowing out of the wash water outlets 143c and 143d changes, and the jetting form of the wash water approaches the linear flow from the dispersed swirling flow.
[0151]
Next, when the switching valve 14 is rotated 270 degrees, the driving state of the pump is on, and the washing water flows out only from the washing water outlet 143d as shown by an arrow W4 in FIG. As described in 15 (b), the washing water is jetted as a straight flow.
[0152]
FIG. 17 is a graph showing an example of the operation of the sanitary washing device 200. The vertical axis in FIG. 17 shows the rotation angle of the switching valve and the driving state of the pump, and the horizontal axis shows time.
[0153]
First, by pressing the buttocks switch 305 of the remote control device 300, the switching valve 14 rotates from 0 degrees to 90 degrees and stops at time t1. At time t1, the driving state of the pump is turned on, cleaning water is ejected from the nozzle cleaning nozzle 3, and the posterior nozzle 1 and the bidet nozzle 2 are cleaned until time t2. Subsequently, the switching valve 14 rotates from 90 degrees to 180 degrees and stops at time t3. At time t3, the driving state of the pump is turned on, and the washing water is ejected from the buttocks nozzle 1. In this case, as described with reference to FIG. 15, the cleaning water is ejected as a dispersed swirling flow.
[0154]
Next, at time t4, when the cleaning area adjustment switch 302e of the remote operation device 300 is pressed down, the switching valve rotates to 270 degrees and stops at time t5. Since the rotation angle of the switching valve 14 changes from 180 degrees to 270 degrees from the time point t4 to the time point t5, the ejection form changes from the dispersed swirling flow to the straight flow as described with reference to FIG. Accordingly, the spread angle of the cleaning water changes, and the cleaning area changes.
[0155]
Next, when the cleaning area adjustment switch 302f of the remote operation device 300 is pressed down at time t6, the switching valve rotates in the reverse direction, rotates from 270 degrees to 180 degrees, and stops at time t7. From the time point t6 to the time point t7, the ejection form changes from the linear flow to the dispersed swirling flow. Accordingly, the spread angle of the cleaning water changes, and the cleaning area changes. In addition, as is clear from the graph of FIG. 17, the speed at which the switching valve 14 rotates from 180 degrees to 270 degrees differs from the speed at which the switching valve 14 rotates from 270 degrees to 180 degrees. Details will be described later.
[0156]
Next, when the stop switch 307 of the remote controller 300 is pressed down at time t8, the switching valve 14 rotates from 180 degrees to 90 degrees and stops at time t9. In addition, between the time point t8 and the time point t9, since the driving state of the pump is off, the cleaning water is not jetted. At time t9, the driving state of the pump is turned on, the cleaning water is jetted from the nozzle cleaning nozzle 3, and the posterior nozzle 1 and the bidet nozzle 2 are cleaned. At time t10, the switching valve 14 rotates to 0 degrees and stops at time t11. In addition, between the time point t10 and the time point t11, the driving state of the pump is off, so that the cleaning water is not jetted.
[0157]
FIG. 18 is a schematic diagram showing a change in the ejection form of the washing water ejected from the posterior nozzle 1.
[0158]
As shown in FIG. 18, the change speed of the spread angle when the spread angle of the washing water is reduced (hereinafter, referred to as reduction speed) is V1, and the change speed of the spread angle when the spread angle of the wash water is expanded (hereinafter referred to as V1). Hereinafter, this will be referred to as the enlargement speed). As shown in FIG. 18, the rotation speed of the motor 141 in FIG. 9 is controlled such that the reduction speed V1 is smaller than the enlargement speed V2. Thus, in the graph of FIG. 17, the time when the switching valve 14 changes from 270 degrees to 180 degrees is shorter than the time when the switching valve 14 changes from 180 degrees to 270 degrees. That is, the speed at which the cleaning area is reduced is set to be smaller than the speed at which the cleaning area is increased.
[0159]
When the area change switch 303 of the remote control device 300 is pressed, the spread angle of the washing water automatically repeats expansion and contraction. At this time, the reduction speed is smaller than the enlargement speed. As a result, it acts so as to remove dirt from the outside toward the center of the inside, and it is possible to prevent the scattering of dirt on the outer periphery.
[0160]
FIG. 19 is a graph of the cleaning sensation intensity versus the cleaning area when the flow rate of the cleaning water is constant. The vertical axis represents the washing sensation intensity, and the horizontal axis represents the washing area of the washing water ejected from the posterior nozzle 1. As shown by a curve ST in FIG. 19, the cleaning sensation intensity decreases as the cleaning area increases, and the cleaning sensation intensity increases as the cleaning area decreases. Therefore, the cleaning sensation intensity can be changed by changing the cleaning area.
[0161]
In the sanitary washing device 100 according to the present embodiment, the water supply pipe 201 corresponds to a water supply source, the nozzle unit 30 corresponds to a jetting unit, and the posterior nozzle 1, the bidet nozzle 2, and the nozzle washing nozzle 3 correspond to a plurality of nozzles. The pump 13 corresponds to a pressurizing unit and a reciprocating pump, the pumping piston 136 corresponds to a pressurizing member, the first channel 27a corresponds to a first channel, and the second channel 27b corresponds to a first channel. The cylindrical vortex chamber 29 corresponds to a rotational flow generating unit, the switching valve 14 corresponds to a flow rate adjusting unit and a switching unit, the control unit 4 corresponds to a control unit and a command unit, The water pressure adjustment switches 302a, 302b, and 302c correspond to pressure fluctuation setting means, the cleaning area adjustment switches 302d, 302e, and 302f correspond to spreading angle setting means, and the ceramic heater 505 corresponds to the heating means. To.
[0162]
(Second embodiment)
Hereinafter, the main body 200a of the sanitary washing device 100 according to the second embodiment will be described.
[0163]
FIG. 20 is a schematic diagram illustrating a configuration of a main body 200a of the sanitary washing device 100 according to the second embodiment.
[0164]
The main body 200a shown in FIG. 20 differs from the main body 200 shown in FIG. 3 in that a wire 29c for changing the ejection form of the posterior nozzle 1 and a motor M0 for controlling the wire 29c are provided. And a structure in which the switching valve 14 is switched to the three flow paths of the posterior nozzle 1, the bidet nozzle 2, and the nozzle cleaning nozzle 3. The details of changing the ejection form of the posterior nozzle 1 by the motor M0 will be described later.
[0165]
21A is a longitudinal sectional view of the switching valve 14, FIG. 21B is a sectional view taken along line AA of the switching valve 14 of FIG. 21A, and FIG. 21C is FIG. It is a BB sectional view of the switching valve 14 of a).
[0166]
The switching valve 14 illustrated in FIG. 21 includes a motor 141, an inner cylinder 142, and an outer cylinder 143.
[0167]
The inner cylinder 142 is inserted into the outer cylinder 143, and the rotation shaft of the motor 141 is attached to the inner cylinder 142. The motor 141 performs a rotation operation based on a control signal provided by the control unit 4. When the motor 141 rotates, the inner cylinder 142 rotates.
[0168]
As shown in FIGS. 21 (a), (b) and (c), a washing water inlet 143a is provided at one end of the outer cylinder 143, and washing water outlets 143b and 143c are provided at opposing positions on the sides. A washing water outlet 143d is provided at a position different from the side washing water outlets 143b and 143c. Holes 142 e and 142 f are provided at different positions of the inner cylinder 142. As shown in FIG. 21B, a chamfered portion is formed around the hole 142e. By the rotation of the inner cylinder 142, the hole 142e can be opposed to the washing water outlet 143b or 143c of the outer cylinder 143, and the hole 142f can be opposed to the washing water outlet 143d of the outer cylinder 143.
[0169]
The pipe 203 of FIG. 20 is connected to the washing water inlet 143a, the bottom nozzle 1 is connected to the washing water outlet 143b, the bidet nozzle 2 is connected to the washing water outlet 143c, and the washing water outlet 143d is The nozzle cleaning nozzle 3 is connected.
[0170]
FIG. 22 is a sectional view showing the operation of the switching valve 14 of FIG.
As shown in FIG. 22A, when the motor 141 does not rotate and the hole 142 e of the inner cylinder 142 is on the same side as the washing water outlet 143 d of the outer cylinder 143, the hole 142 e of the inner cylinder 142 is Neither does the cleaning water outlet 143b, 143c face, and the hole 142f of the inner cylinder 142 does not face the cleaning water outlet 143d of the outer cylinder 143. Therefore, the washing water does not flow out of any of the washing water outlets 143b, 143c, 143d.
[0171]
Next, as shown in FIG. 22B, when the motor 141 rotates the inner cylinder 142 by 45 degrees, a part of the chamfer around the hole 142 e of the inner cylinder 142 removes the washing water of the outer cylinder 143. It faces the outlet 143b. Therefore, a small amount of washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a, and flows out from the washing water outlet 143b as shown by the arrow W1.
[0172]
Also, as shown in FIG. 22C, when the motor 141 rotates the inner cylinder 142 by 90 degrees, the hole 142e of the inner cylinder 142 faces the washing water outlet 143b of the outer cylinder 143. Therefore, a large amount of washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a, and flows out from the washing water outlet 143b as shown by the arrow W2.
[0173]
Further, when the motor 141 rotates the inner cylinder 142 by 270 degrees, the hole 142 e of the inner cylinder 142 faces the washing water outlet 143 c of the outer cylinder 143. Therefore, a large amount of washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a and flows out from the washing water outlet 143c.
[0174]
When the motor 141 rotates the inner cylinder 142 by 180 degrees, the hole 142f of the inner cylinder 142 faces the washing water outlet 143d of the outer cylinder 143. Therefore, a large amount of washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a and flows out from the washing water outlet 143d.
[0175]
As described above, one of the holes 142e and 142f of the inner cylinder 142 faces one of the washing water outlets 143b to 143d of the outer cylinder 143 by the rotation of the motor 141 based on the control signal from the control unit 4. In this case, the wash water flows out, and when neither of the holes 142 e and 142 f of the inner cylinder 142 faces any of the wash water outlets 143 b to 143 d of the outer cylinder 143, the wash water does not flow.
[0176]
Next, the buttocks 1 of the nozzle unit 30 in FIG. 20 will be described. FIG. 23 is a sectional view of the buttocks nozzle 1 of the nozzle unit 30 of FIG. The configuration and operation of the bidet nozzle 2 of the nozzle unit 30 in FIG. 20 are the same as those of the buttocks nozzle 1 in FIG.
[0177]
As shown in FIG. 23, the posterior nozzle 1 includes a cylindrical piston portion 20, a cylindrical cylinder portion 21, a seal packing 22, and a spring 23.
[0178]
An ejection hole 25 for ejecting cleaning water is formed near the tip of the piston portion 20. Further, in the vicinity of the ejection hole 25, a conical ejection form adjusting piece 29a for adjusting the ejection form of the washing water ejected from the ejection hole 25, a spring 29b for adjusting the position of the ejection form adjusting piece 29a, and A wire 29c is provided. The ejection form adjusting piece 29a is urged by a spring 29b so as to be inserted into the ejection hole 25. By pulling the wire 29c in the direction of the arrow z by the motor M0 in FIG. 20, the position of the wire 29a can be adjusted against the elasticity of the spring 29b. A flange-shaped stopper 26 is provided at the rear end of the piston 20. The seal packing 22 is mounted on the stopper 26. Inside the piston portion 20, a flow path 27 communicating from the rear end face to the ejection hole 25 is formed.
[0179]
On the other hand, the cylinder portion 21 includes a small diameter portion on the front end side and a large diameter portion on the rear end side. Thus, a stopper surface 21b is formed between the small-diameter portion and the large-diameter portion so that the stopper portion 26 can contact with the seal packing 22 therebetween. A washing water inlet 24 is provided on a rear end surface of the cylinder portion 21, and an opening 21 a is provided on a front end surface of the cylinder portion 21. The internal space of the cylinder 21 serves as a temperature fluctuation buffer 28. The cleaning water inlet 24 is eccentrically provided at a position different from the center axis of the cylinder portion 21. The washing water inlet 24 is connected to the washing water outlet 143b of the switching valve 14 in FIG.
[0180]
The piston portion 20 is movably inserted into the cylinder portion 21 so that the stopper portion 26 is located in the temperature fluctuation buffer portion 28 and the tip end protrudes from the opening portion 21a.
[0181]
Further, the spring 23 is disposed between the stopper 26 of the piston 20 and the periphery of the opening 21 a of the cylinder 21, and urges the piston 20 toward the rear end of the cylinder 21.
[0182]
A minute gap is formed between the outer peripheral surface of the stopper portion 26 of the piston portion 20 and the inner peripheral surface of the cylinder portion 21, and between the outer peripheral surface of the piston portion 20 and the inner peripheral surface of the opening 21a of the cylinder portion 21. A minute gap is formed.
[0183]
Next, the operation of the buttocks nozzle 1 in FIG. 23 will be described. FIG. 24 is a cross-sectional view for explaining the operation of the buttocks nozzle 1 of FIG.
[0184]
First, as shown in FIG. 24A, when the washing water is not supplied from the washing water inlet 24 of the cylinder portion 21, the piston portion 20 retreats in the direction opposite to the direction of the arrow X by the elastic force of the spring 23, It is housed in the cylinder part 21. As a result, the piston portion 20 is in a state where it does not protrude the most from the opening 21a of the cylinder portion 21. At this time, the temperature fluctuation buffer portion 28 is not formed in the cylinder portion 21.
[0185]
Next, as shown in FIG. 24 (b), when the supply of the cleaning water is started from the cleaning water inlet 24 of the cylinder part 21, the pressure of the cleaning water causes the piston part 20 to oppose the elastic force of the spring 23 with an arrow. Go slowly in the X direction. As a result, the temperature fluctuation buffer 28 is formed in the cylinder 21 and the washing water flows into the temperature fluctuation buffer 28.
[0186]
Since the washing water inlet 24 is provided at a position eccentric with respect to the central axis of the cylinder part 21, the washing water flowing into the temperature fluctuation buffer part 28 is returned in a spiral as shown by the arrow V. A part of the washing water of the temperature fluctuation buffer unit 28 passes through a minute gap between the outer peripheral surface of the stopper unit 26 of the piston unit 20 and the inner peripheral surface of the cylinder unit 21 and between the outer peripheral surface of the piston unit 20 and the cylinder unit 21. The gas flows out of the minute gap between the inner peripheral surface of the opening 21 a and the gas, and is jetted from the jet hole 25 through the flow path 27 of the piston 20.
[0187]
When the piston portion 20 further advances, the stopper portion 26 comes into contact with the stopper surface 21b of the cylinder portion 21 through the seal packing 22 in a watertight manner as shown in FIG. As a result, the gap between the outer peripheral surface of the piston portion 20 and the inner peripheral surface of the opening 21a of the cylinder portion 21 is reduced due to the minute gap between the outer peripheral surface of the stopper portion 26 of the piston portion 20 and the inner peripheral surface of the cylinder portion 21. The flow path leading to the minute gap is blocked. Therefore, the washing water of the temperature fluctuation buffer unit 28 is jetted only from the jet holes 25 through the flow path 27 in the piston unit 20.
[0188]
FIGS. 25 (a) to 25 (c) are explanatory diagrams of the washing water ejected from the ejection holes 25 of the buttocks nozzle 1 in the second embodiment.
[0189]
FIG. 25A is a schematic diagram illustrating a jetting form of the washing water when the tip of the jetting form adjusting piece 29 a is taken out from the jetting hole 25. In the state where the tip of the ejection form adjusting piece 29a is taken out from the ejection hole 25, since the distance between the outer peripheral surface of the ejection form adjusting piece 29a and the ejection hole 25 is sufficiently large, the washing water exerts an influence on the outer peripheral surface of the ejection form adjusting piece 29a. I do not receive. Therefore, the jetting form of the washing water jetted from the jet holes 25 is a straight flow as shown by the broken line.
[0190]
FIG. 25 (b) is a schematic diagram showing a jetting form of the washing water when the tip of the jetting form adjusting piece 29a is inserted into the jetting hole 25. In a state where the tip of the ejection form adjusting piece 29a is inserted into the ejection hole 25, the distance between the outer peripheral surface of the ejection form adjusting piece 29a and the ejection hole 25 becomes small, and thus the washing water is formed in a conical shape of the ejection form adjusting piece 29a. It flows along the outer peripheral surface and is ejected so as to spread from the ejection holes 25 as indicated by arrows W2 and W3. As a result, the jet is jetted as a jet having a spread as shown by a broken line. As shown in FIG. 25 (c), the cross section of the washing water ejected from the ejection holes 25 has a circular shape. By adjusting the position of the ejection form adjusting piece 29a in the ejection hole 25 with the wire 29c, the spread angle of the washing water ejected from the ejection hole 25 can be changed. Thereby, the cleaning area of the surface to be cleaned can be changed.
[0191]
FIGS. 26A to 26C are diagrams showing another example of the ejection form adjusting piece provided in the posterior nozzle 1 according to the second embodiment. The ejection form adjusting piece 29a in FIG. 26 has an outer peripheral surface in the shape of an inverted truncated cone. The ejection form 29a is urged by a spring 29b to be pushed out of the ejection hole 25. By pulling the wire 29c in the direction of arrow z by the motor M0 in FIG. 20, the position of the ejection form adjusting piece 29a can be adjusted against the elasticity of the spring 29b.
[0192]
FIG. 26A is a schematic diagram illustrating a jetting form of the washing water when the jetting form adjusting piece 29a is pushed out from the jetting hole 25. In a state in which the ejection form adjusting piece 29a is pushed out from the ejection hole 25, the distance between the outer peripheral surface of the ejection form adjusting piece 29a and the ejection hole 25 is sufficiently large, so that the cleaning water is not affected by the outer peripheral surface of the ejection form adjusting piece 29a. Therefore, the jetting form of the washing water jetted from the jet holes 25 is a straight flow as shown by the broken line.
[0193]
FIG. 26 (b) is a schematic diagram showing the jetting form of the washing water when the jetting form adjusting piece 29a is inserted into the jetting hole 25. In a state where the ejection form adjusting piece 29a is inserted into the ejection hole 25, the distance between the outer periphery of the ejection form adjusting piece 29a and the ejection hole 25 is reduced. And is ejected so as to spread from the ejection hole 25 as shown by arrows w3 and w4. As a result, the jet is jetted as a jet having a spread as shown by a broken line. As shown in FIG. 26 (c), the cross section of the washing water spouted from the spout hole 25 is annular. By adjusting the position of the ejection form adjusting piece 29a in the ejection hole 25 with the wire 29c, the spread angle of the washing water ejected from the ejection hole 25 can be changed. Thereby, the cleaning area of the surface to be cleaned can be changed.
[0194]
In sanitary washing device 100 according to the present embodiment, ejection form adjusting pieces 29a and 29b correspond to movable members, and motor M0 corresponds to a driving unit and an electric driving unit.
[0195]
(Third embodiment)
Hereinafter, the main body 200b of the sanitary washing device 100 according to the third embodiment will be described.
[0196]
FIG. 27 is a schematic diagram illustrating an example of a configuration of a main body 200b of the sanitary washing device 100 according to the third embodiment.
[0197]
The main body 200b shown in FIG. 27 is different from the main body 200a shown in FIG. 20 in that the toilet cleaning nozzle 4, the switching valve 15 for switching the flow path between the toilet cleaning nozzle 4 and the nozzle cleaning nozzle 3, and the switching valve 15 are controlled. In that the motor M1 is provided.
[0198]
The control unit 4 rotates the motor M1 based on a signal wirelessly transmitted from the remote operation device 300 in FIG. Thereby, the switching valve 15 supplies the flush water to one of the toilet flush nozzle 4 and the nozzle flush nozzle 3 of the nozzle unit 30.
[0199]
FIG. 28 is a schematic diagram illustrating a state in which flush water is spouted from the toilet flush nozzle 4. The toilet flush nozzle 4 is moved by a signal from the remote control device 300, and flush water is jetted downward toward the toilet 600. The toilet flush nozzle 4 may be a nozzle having the configuration described in any of FIGS. 15, 25, and 26. Thereby, the toilet bowl can be effectively cleaned.
[0200]
【The invention's effect】
In the sanitary washing device according to the present invention, the washing water supplied from the water supply source is pressurized while being subjected to periodic pressure fluctuations by the pressurizing means. Therefore, even with a small flow rate, the cleaning stimulation effect is enhanced.
[0201]
Further, the spreading angle of the washing water spouted from the spouting means is controlled by the spreading angle control means and spouted toward the human body. Therefore, the user can obtain not only the adjustment of the flow rate but also various washing feelings and washing powers according to tastes and physical conditions.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a sanitary washing device according to a first embodiment is mounted on a toilet.
FIG. 2 is a schematic diagram showing an example of the remote control device of FIG.
FIG. 3 is a schematic diagram showing a configuration of a main body of the sanitary washing device according to the first embodiment.
FIG. 4 is a partially cutaway sectional view showing an example of the structure of the heat exchanger.
FIG. 5 is a schematic sectional view showing a configuration of a pump according to the present embodiment.
FIG. 6 is a schematic view for explaining the operation of the umbrella packing.
FIG. 7 is a diagram showing a pressure change of the pump of FIG. 5;
FIG. 8 is a diagram showing a pressure change of a pump due to a difference in water force set in the first embodiment.
9A is a longitudinal sectional view of the switching valve, FIG. 9B is a sectional view taken along line AA of the switching valve of FIG. 9A, and FIG. 9C is a sectional view of B- of the switching valve of FIG. It is a sectional view on the B line, and (d) is a sectional view on the CC line of the switching valve of (a).
FIG. 10 is a sectional view showing the operation of the switching valve of FIG. 9;
FIG. 11 shows the flow rate of the wash water flowing from the wash water outlet of the switching valve of FIG. 10 to the buttocks nozzle, the flow rate of the wash water flowing from the wash water outlet to the bidet nozzle, and the wash water flowing from the wash water outlet to the nozzle cleaning nozzle. Diagram showing flow rate
FIG.
FIG. 3 is a schematic cross-sectional view of the nozzle portion and the switching valve of FIG. 3.
FIG. 13 is a sectional view for explaining the operation of the buttocks nozzle of FIG. 12;
FIG. 14 is a sectional view for explaining the operation of the bidet nozzle of FIG. 12;
FIG. 15 is a schematic view of a tip of a piston portion of the buttocks nozzle of FIG. 12;
FIG. 16 is an explanatory diagram showing a relationship between a rotation angle of a switching valve, a driving state of a pump, and a nozzle for ejecting cleaning water.
FIG. 17 is a diagram showing an example of the operation of the sanitary washing device based on the operation of the remote operation device.
FIG. 18 is a schematic view showing a change in the form of jetting of washing water jetted from a posterior nozzle.
FIG. 19 is a view showing the cleaning sensation intensity with respect to the cleaning area when the flow rate of the cleaning water is constant.
FIG. 20 is a schematic view showing a configuration of a main body of the sanitary washing device according to the second embodiment.
21A is a longitudinal sectional view of a switching valve, FIG. 21B is a sectional view of the switching valve taken along line AA, and FIG. 21C is a sectional view of the switching valve taken along line BB.
FIG. 22 is a sectional view showing the operation of the switching valve of FIG. 21;
FIG. 23 is a sectional view of the buttocks nozzle of the nozzle unit of FIG. 20;
FIG. 24 is a sectional view for explaining the operation of the buttocks nozzle of FIG. 20;
FIG. 25 is a schematic view for explaining cleaning water ejected from the ejection hole of the buttocks nozzle according to the second embodiment.
FIG. 26 is a diagram showing another example of the ejection form adjusting piece provided in the buttocks nozzle according to the second embodiment.
FIG. 27 is a schematic view illustrating a configuration of a main body of a sanitary washing device according to a third embodiment.
FIG. 28 is a schematic view illustrating a state in which flush water is spouted from a toilet flush nozzle.
[Explanation of symbols]
1 Butt nozzle
2 bidet nozzle
4 control unit
11 heat exchanger
13 pump
14,15 switching valve
25 orifice
29 Cylindrical vortex chamber
29a Jet shape adjustment piece
29b spring
29c wire
30 Nozzle part
130, 141 motor
139 cylindrical space
139a, 139b Pump room
200 main body
201 Water pipe
300 Remote control device
302 Adjustment switch
302a, 302b, 302c Water pressure adjustment switch
302d, 302e, 302f Cleaning area adjustment switch
303 Area change switch
304 water pressure change switch
505 ceramic heater

Claims (24)

A sanitary washing device that jets washing water supplied from a water supply source to a human body,
Jetting means for jetting the washing water and changing the spread angle of the jetted washing water,
Pressurizing means for applying pressure to the washing water while periodically applying pressure fluctuation to the washing water supplied from the water supply source and ejecting the washing water from the ejection means,
A control unit for controlling a spread angle of the washing water jetted from the jetting unit. Spreading angle setting means for setting the spreading angle of the washing water spouted from the spouting means,
2. The sanitary washing device according to claim 1, wherein the control unit controls a spread angle of the wash water jetted from the jet unit based on a setting of the spread angle setting unit. 3. The spread angle setting means,
The sanitary washing device according to claim 2, further comprising a switch capable of changing a spread angle of the washing water in a stepwise manner. The spread angle setting means,
The sanitary washing device according to claim 2 or 3, further comprising a switch capable of continuously changing a spread angle of the washing water. The control means includes:
The sanitary washing device according to any one of claims 2 to 4, wherein the spread angle of the wash water jetted from the jetting means is continuously enlarged or reduced based on the setting of the spread angle setting means. Further comprising a command means for commanding an operation of repeating an operation of continuously expanding or reducing the spread angle of the washing water ejected from the ejection means,
The sanitary washing device according to any one of claims 1 to 5, wherein the control unit changes a spread angle of the wash water ejected from the ejection unit in response to a command from the command unit. The control means includes:
7. The sanitary washing device according to claim 6, wherein the reduction speed is smaller than the expansion speed of the cleaning water spread angle. The jetting means,
The sanitary washing device according to any one of claims 1 to 7, wherein the washing water is jetted in a circular cross section. The jetting means,
The sanitary washing device according to any one of claims 1 to 7, wherein the washing water is jetted in an annular cross section. The jetting means,
Vents,
A first flow path that guides the cleaning water supplied from the pressurizing means to the ejection hole;
A second flow path that guides the cleaning water supplied from the pressurizing means to the ejection holes,
Rotating flow generating means for generating a rotating flow in the washing water of the first flow path;
The sanitary washing device according to claim 8, further comprising a flow rate adjusting unit that adjusts a flow rate of the washing water supplied to the first flow path and the second flow path. The jetting means,
Vents,
A flow path for guiding the cleaning water supplied from the pressurizing means to the ejection hole,
A movable member having a conical outer peripheral surface movably provided in the ejection hole,
The sanitary washing device according to claim 8, wherein the control unit includes a driving unit that moves the movable member. The jetting means,
Vents,
A flow path for guiding the cleaning water supplied from the pressurizing means to the ejection hole,
A movable member having an inverted truncated cone-shaped outer peripheral surface movably provided in the ejection hole,
The sanitary washing device according to claim 9, wherein the control unit includes a driving unit that moves the movable member. The pressurizing means,
The sanitary washing apparatus according to any one of claims 1 to 12, further comprising a reciprocating pump having a reciprocating pressurizing member. Further comprising a pressure fluctuation setting means for setting the mode of the pressure fluctuation of the washing water,
The control means includes:
The sanitary washing device according to claim 13, wherein a mode of pressure fluctuation by the pressurizing means is controlled based on the setting of the pressure fluctuation setting means. The pressure fluctuation setting means,
The sanitary washing device according to claim 14, further comprising a switch that changes a mode of the pressure change stepwise. The pressure fluctuation setting means,
The sanitary washing device according to claim 14 or 15, further comprising a switch that continuously changes the mode of the pressure fluctuation. The control means includes:
3. The method according to claim 1, wherein at least one of a cycle, a fluctuation range, and a center pressure of the pressure fluctuation of the washing water jetted from the jetting means is continuously increased or decreased based on the setting of the pressure fluctuation setting means. 16. A sanitary washing device according to item 16. A cycle of pressure fluctuation of the washing water spouted from the spouting means, a command means for commanding an operation of repeating at least one continuous increase and decrease of the fluctuation width and the center pressure,
The sanitary washing device according to any one of claims 1 to 17, wherein the control unit controls pressure fluctuation of the wash water ejected from the ejection unit in response to the command unit. The jetting means,
19. The sanitary washing device according to claim 1, further comprising a human washing nozzle device for ejecting washing water to a human body. The jetting means,
The sanitary washing device according to any one of claims 1 to 19, further comprising a toilet washing nozzle device for ejecting washing water to the toilet. The control means includes:
The sanitary washing device according to any one of claims 1 to 20, further comprising an electric drive unit that controls a spread angle of the washing water ejected from the ejection unit. The jetting means,
A plurality of nozzle devices;
Switching means for selectively supplying cleaning water to any of the plurality of nozzle devices,
22. The sanitary washing device according to claim 21, wherein the electric drive unit switches the switching unit. 23. The sanitary washing apparatus according to claim 1, further comprising a heating unit that heats the washing water supplied from the water supply source and supplies the washing water to the pressurizing unit. 24. The sanitary washing device according to claim 23, wherein the heating unit is an instantaneous heating device that heats the washing water supplied from a water supply source while flowing the washing water.

Images