JP4384393B2 - Sanitary washing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a sanitary washing device for washing a local part of a human body.
[0002]
[Prior art]
  In general, a sanitary washing device for washing a local part of a human body is provided with a heating device that adjusts washing water used for washing to an appropriate temperature so as not to cause discomfort to the human body. Such heating devices mainly include hot water storage type heating devices or instantaneous type heating devices.
[0003]
  A sanitary washing device using a hot water storage type heating device is equipped 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 the local part of the human body is washed in advance, A method is adopted in which the wash water heated to a predetermined temperature in the hot water tank is ejected from the nozzle by using a tap water pressure or pumped by a pump or the like.
[0004]
  On the other hand, a sanitary washing device using an instantaneous heating device uses water pressure to heat the wash water to a predetermined temperature with a heater such as a ceramic heater that has an excellent temperature rise rate when washing local parts of the human body. Alternatively, a method is adopted in which the ink is pumped by a pump or the like and ejected from the nozzle.
[0005]
  Therefore, in the sanitary washing device using the instantaneous heating device, it is not necessary to keep the washing water at a predetermined temperature in advance, and it is only necessary to supply power to the heater only during use, thereby suppressing power consumption. Can do. In addition, even when a large amount of washing water is used for washing the local area of the human body due to long-time washing or continuous use of the toilet, the temperature of the washing water falls below a predetermined temperature, causing discomfort to the human body. Can be prevented.
[0006]
[Problems to be solved by the invention]
  In recent years, various functions have been devised in a sanitary washing apparatus in order to realize washing according to user's preference. For example, in order to realize cleaning according to the user's preference, a function of adjusting the water flow of the cleaning water ejected from the nozzle is provided. The user can adjust the water flow of the cleaning water ejected from the nozzle according to his / her preference.
[0007]
  However, in a sanitary washing device that uses a hot water storage type heating device, it is possible to increase the flow rate of the wash water, but the increase in the flow rate of the wash water is less irritating and the feeling of washing according to the user's preference. Cannot be obtained. On the other hand, in a sanitary washing device using an instantaneous heating device, since an instantaneous temperature rise of the washing water is required, it is difficult to increase the flow rate of the washing water ejected to the user's local area. 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, irritation is weak and a feeling of cleaning according to the user's preference cannot be obtained.
[0008]
  An object of the present invention is to provide a sanitary washing device that has a high cleaning stimulus effect even at a small flow rate and can obtain a feeling of washing and a washing power according to the 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 jets wash water supplied from a water supply source to a human body, and jetting means that jets wash water and can change the spreading angle of the wash water that is jetted. Pressurizing means for pressurizing the wash water while causing periodic pressure fluctuations to the wash water supplied from the water supply source and ejecting it from the ejection means; and control means for controlling the spread angle of the wash water ejected from the ejection means; The pressurizing means is a double-acting reciprocating pump,The control means makes the reduction speed smaller than the enlargement speed of the washing water spread angle.Is.
[0010]
  In the sanitary washing apparatus according to the present invention, the wash water supplied from the water supply source is pressurized while being periodically subjected to pressure fluctuations by the pressurizing means. Therefore, the cleaning stimulation effect is enhanced even with a small flow rate.
[0011]
  Further, the wash water ejected from the ejection means is ejected toward the human body with the spread angle controlled by the spread angle control means. Therefore, the user can not only adjust the flow rate but also obtain various cleaning feelings and cleaning powers according to taste and physical condition.
Furthermore, the spreading angle of the washing water ejected from the ejection means is smaller at the reduction speed than at the enlargement speed. Accordingly, the cleaning water acts so as to remove dirt from the outside to the inside, thereby preventing the dirt from being scattered on the outer periphery of the surface to be cleaned.
[0012]
  A spread angle setting means for setting a spread angle of the washing water sprayed from the spray means;The spread angle setting means may include a switch that can change the spread angle of the cleaning water stepwise. In this case, based on the setting of the spread angle setting means, the spread angle of the cleaning water ejected from the ejection means can be controlled stepwise. Therefore, the user can easily select the cleaning water spread angle and the cleaning area according to his / her preference.
[0013]
  Command means for instructing an operation of repeating continuous expansion or reduction of the spread angle of the washing water ejected from the ejection means, and the control means is the washing water ejected from the ejection means in response to the command from the instruction means The spread angle may be changed. In this case, the spread angle of the washing water ejected from the ejection means can be continuously expanded or reduced in accordance with a command from the command means. Therefore, the user can repeatedly perform cleaning over a wide range.
[0015]
  The jetting unit may jet the cleaning water in a circular cross section. In this case, the cross section of the washing water ejected from the ejection means is circular. Therefore, the user can clean the surface to be cleaned in a circular shape. As a result, the user can obtain various cleaning feelings according to taste and physical condition.
[0016]
  The jetting unit may jet the cleaning water in an annular cross section. In this case, the cross section of the wash water ejected from the ejection means is annular. Therefore, the user can clean the surface to be cleaned in an annular shape. As a result, the user can obtain various cleaning feelings according to taste and physical condition.
[0017]
  The ejection means includes an ejection hole, a first flow path that guides the cleaning water supplied from the pressurization means to the ejection hole, a second flow path that guides the cleaning water supplied from the pressurization means to the ejection hole, Rotating flow generating means for generating a rotating flow in the wash water of the first flow path, and flow rate adjusting means for adjusting the flow rate of the wash water supplied to the first flow path and the second flow path may be included. .
[0018]
  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 washing water flowing through the first flow path and the second flow path can be changed independently. Furthermore, since a rotating flow of washing water can be generated in the first flow path, a dispersed swirl 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 the linear flow or the distributed swirl flow, or the linear flow and the distributed swirl according to the user's physical condition or preference. A mixed flow with the flow can be ejected. Thereby, the spread angle and the cleaning area of the cleaning water can be changed.
[0019]
  The ejection means has an ejection hole, a flow path for guiding the washing water supplied from the pressurizing means to the ejection hole, and a movable member having a conical outer peripheral surface provided movably in the ejection hole, The control means may include drive 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 becomes a linear flow without being influenced by the movable member. Further, when the movable member is inserted into the ejection hole, the cleaning water is ejected along the outer peripheral surface of the movable member, so that the cross-section becomes a circular dispersed flow. Therefore, the cleaning water spread angle changes depending on the position of the movable member, the density of the cleaning water changes, and a cleaning feeling different from the adjustment of only the flow rate is obtained. As a result, the user can obtain various cleaning feelings and cleaning powers according to taste and physical condition.
[0020]
  The ejection means has an ejection hole, a flow path for guiding the wash water supplied from the pressurizing means to the ejection hole, and a movable member having an inverted frustoconical outer peripheral surface provided movably in the ejection hole. The control means may include drive means for moving the movable member.
[0021]
  In this case, when the inverted frustoconical movable member provided in the ejection hole is taken out from the ejection hole, the washing water becomes a linear flow without being influenced by the movable member. Further, when the movable member is inserted into the ejection hole, the cleaning water is ejected along the outer peripheral surface of the movable member, so that the cross section becomes a dispersed flow having an annular shape. Therefore, the cleaning water spread angle changes depending on the position of the movable member, the density of the cleaning water changes, and a cleaning feeling different from the adjustment of only the flow rate is obtained. As a result, the user can obtain various cleaning feelings and cleaning powers according to taste and physical condition.
[0022]
  The jetting unit may include a human body cleaning nozzle device that jets cleaning water to the human body. In this case, the cleaning area of the local part of the human body can be changed.
[0023]
  The ejection means may include a toilet cleaning nozzle device that ejects cleaning water to the toilet. In this case, the cleaning area of the toilet bowl can be changed. Therefore, the toilet bowl can be effectively cleaned.
[0024]
  The control unit may include an electric drive unit that controls a spread angle of the cleaning water ejected from the ejection unit. In this case, the spread angle of the washing water ejected from the ejection means can be adjusted by the electric drive unit. Therefore, the user can change the spread angle of the washing water ejected from the ejection means by remote operation or automatically.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, a sanitary washing device according to an embodiment of the present invention will be described.
[0026]
  (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.
[0027]
  As shown in FIG. 1, the sanitary washing device 100 is mounted on the toilet bowl 600. The tank 700 is connected to a water pipe and supplies cleaning water into the toilet 600.
[0028]
  The sanitary washing device 100 includes a main body 200, a remote operation device 300, a toilet seat 400 and a lid 500.
[0029]
  A toilet seat 400 and a lid 500 are attached to the main body 200 so as to be freely opened and closed. Furthermore, the main body part 200 is provided with a cleaning water supply mechanism including the nozzle part 30 and a control part is incorporated. The control unit of the main body 200 controls the cleaning water supply mechanism based on a signal transmitted by the remote operation device 300 as will be 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) and a hot air supply device (not shown) provided in the main body 200.
[0030]
  FIG. 2 is a schematic diagram showing an example of the remote control device 300 of 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 force change switch 304, an area change switch 303, a butt 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.
[0031]
  The user presses down the adjustment switch 302, the area change switch 303, the water change switch 304, the butt switch 305, the stimulation 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.
[0032]
  For example, when the user presses down the buttocks switch 305 or the bidet switch 308, the nozzle part 30 of the main body part 200 in FIG. 1 moves and the washing water is ejected. By depressing the stimulation switch 306, washing water that gives stimulation to a local part of the human body is ejected from the nozzle unit 30 of the main body unit 200 of FIG. By depressing the stop switch 307, the ejection of the washing water from the nozzle unit 30 is stopped.
[0033]
  Further, when the drying switch 309 is pressed, hot air is jetted from a hot air supply device (not shown) of the sanitary washing device 100 to a local part of the human body. By depressing the deodorization switch 310, the deodorization of the surroundings is performed by the deodorization device (not shown) of the sanitary washing device 100.
[0034]
  The adjustment switch 302 includes water force adjustment switches 302a, 302b, 302c, cleaning area adjustment switches 302d, 302e, 302f, temperature adjustment switches 302g, 302h, and nozzle position adjustment switches 302i, 302j.
[0035]
  When the user depresses the nozzle position adjustment 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 depresses the temperature adjustment switches 302g and 302h. The temperature of the cleaning water ejected from the nozzle part 30 changes. In addition, the water flow (mode of pressure fluctuation) ejected from the nozzle unit 30 is changed stepwise by depressing the water flow adjustment switch 302a, and continuously by depressing the water flow adjustment switches 302b and 302c. The water flow (mode of pressure fluctuation) of the washing water ejected from the nozzle part 30 changes. Here, the mode of pressure fluctuation means the period of pressure fluctuation, fluctuation width, and central pressure. In addition, by pressing the cleaning area adjustment switch 302d, the washing water jetting form jetted from the nozzle unit 30 is changed step by step.Cleaning area adjustment switchBy depressing the buttons 302e and 302f, the ejection form of the washing water continuously ejected from the nozzle unit 30 is changed. Thereby, the spread angle of the cleaning water changes, and the cleaning area of the surface to be cleaned changes. As the adjustment switch 302 is pressed, a plurality of LEDs (light emitting diodes) 301 are lit.
[0036]
  Further, when the water pressure change switch 304 is pressed, the water pressure (mode of pressure fluctuation) ejected from the nozzle unit 30 continuously increases and decreases. Details will be described later.
[0037]
  Further, by depressing the area change switch 303, the spread angle of the cleaning water ejected from the nozzle unit 30 is changed, and the cleaning area of the surface to be cleaned continuously repeats expansion and reduction. Details will be described later.
[0038]
  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 the configuration of the main body 200 of the sanitary washing device 100 according to the first embodiment.
[0039]
  3 includes a control unit 4, a branch tap 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, the pump 13, the switching valve 14, and the nozzle part 30 are included. The nozzle unit 30 includes a buttocks nozzle 1, a bidet nozzle 2 and a nozzle cleaning nozzle 3.
[0040]
  As shown in FIG. 3, the branch tap 5 is inserted in the water pipe 201. A strainer 6, a check valve 7, a constant flow valve 8, a water stop electromagnetic valve 9, a flow sensor 10, and a temperature sensor 12 a are sequentially connected to the pipe 202 connected between the branch tap 5 and the heat exchanger 11. It is inserted. Further, a temperature sensor 12 b and a pump 13 are inserted in a pipe 203 connected between the heat exchanger 11 and the switching valve 14.
[0041]
  First, purified water flowing through the water pipe 201 is supplied to the strainer 6 by the branch tap 5 as cleaning water. The strainer 6 removes dust and impurities contained in the cleaning water. Next, the check valve 7 prevents the backflow of the cleaning water in the pipe 202. And the flow volume of the washing water which flows through the piping 202 by the constant flow valve 8 is maintained constant.
[0042]
  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 sensor 10. A relief valve 206 is inserted in the relief pipe 204. The relief valve 206 is opened when the pressure in the pipe 203, particularly on the downstream side of the pump 13, exceeds a predetermined value, and prevents problems such as damage to the equipment and disconnection of the hose at the time of abnormality. On the other hand, of the cleaning water supplied with the flow rate adjusted by the constant flow valve 8, the cleaning water not sucked by the pump 13 is released and discharged from the water pipe 205. Thereby, a predetermined back pressure acts on the pump 13 without being influenced by the water supply pressure.
[0043]
  Next, the flow rate sensor 10 measures the flow rate of the cleaning water flowing in the pipe 202 and gives the measured flow rate value to the control unit 4. Further, the temperature sensor 12 a measures the temperature of the cleaning water flowing in the pipe 202 and gives a temperature measurement value to the control unit 4.
[0044]
  Subsequently, the heat exchanger 11 heats the cleaning water supplied through the pipe 202 to a predetermined temperature based on the control signal given by the control unit 4. The temperature sensor 12 b measures the temperature of the cleaning water heated to a predetermined temperature by the heat exchanger 11 and gives a temperature measurement value to the control unit 4.
[0045]
  The pump 13 pumps the wash 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 any one of the butt nozzle 1, the bidet nozzle 2, and the nozzle cleaning nozzle 3 based on the control signal given by the control unit 4. Accordingly, the cleaning water is ejected from any one of the buttocks nozzle 1, the bidet nozzle 2, and the nozzle cleaning nozzle 3. Further, the switching valve 14 adjusts the flow rate of the cleaning water ejected from the nozzle unit 30 based on the control signal given by the control unit 4. As a result, the flow rate of the cleaning water ejected from the nozzle unit 30 changes.
[0046]
  The control unit 4 uses the water stop electromagnetic valve 9 and the heat exchange based on the signal wirelessly transmitted from the remote control device 300 of FIG. 1, the measured flow rate value given from the flow sensor 10 and the temperature measured value given from the temperature sensors 12a and 12b. A control signal is given to the vessel 11, the pump 13 and the switching valve 14.
[0047]
  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 bent in a resin case 504 is embedded. A flat ceramic heater 505 is provided so as to contact the meandering pipe 510. As indicated by an arrow Y, cleaning water is supplied from the water supply port 511 into the meandering pipe 510, and is efficiently heated by the ceramic heater 505 while flowing through the meandering pipe 510, and is discharged from the discharge port 512.
[0048]
  The control unit 4 in FIG. 3 feedback-controls the temperature of the ceramic heater 505 of the heat exchanger 11 based on the temperature measurement value given from the temperature sensor 12b.
[0049]
  In the present embodiment, the control unit 4 controls the temperature of the ceramic heater 505 of the heat exchanger 11 by feedback control. However, the present invention is not limited to this, and the temperature of the ceramic heater 505 is controlled by feedforward control. Alternatively, the ceramic heater 505 may be controlled by feedforward control when the temperature rises, and complex control may be performed in which the ceramic heater 505 is controlled by feedback control in a steady state.
[0050]
  FIG. 5 is a cross-sectional view showing an example of the structure of the pump 13. The pump in FIG. 5 is a double-acting reciprocating pump.
[0051]
  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 136 a is attached to the outer periphery of the pressure feeding piston 136. The cylindrical space 139 is divided into a pump chamber 139a and a pump chamber 139b by the pressure feed piston 136.
[0052]
  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 cleaning water inlet PI via the pipe 203 in FIG. 3, and the switching valve 14 is connected to the cleaning water outlet PO via the pipe 203.
[0053]
  The cleaning 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.
[0054]
  The pump chamber 139a communicates with the washing water outlet PO through 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 through the small chamber S6, the small chamber S8, and the internal flow path P4.
[0055]
  An umbrella packing 137 is provided in each of the small chamber S3, the small chamber S4, the small chamber S7, and the small chamber S8.
[0056]
  A gear 131 is attached to the rotation shaft of the motor 130, and the gear 132 is engaged with the gear 131. Further, one end of the crankshaft 133 is attached to the gear 132 so as to be rotatable at one point support, and a pressure feed piston 136 is attached to the other end of the crankshaft 133 via a piston holding part 134 and a piston holding bar 135. ing.
[0057]
  When the rotating shaft of the motor 130 rotates based on the control signal given by the control unit 4 in FIG. 3, the gear 131 attached to the rotating shaft of the motor 130 rotates in the direction of the arrow R1, and the gear 132 moves in the direction of the arrow R2. Rotate in the direction. Thereby, the pumping piston 136 moves up and down in the direction of the arrow Z in the drawing.
[0058]
  FIG. 6 is a schematic diagram for explaining the operation of the umbrella packing 137. For example, when the pumping piston 136 in FIG. 5 moves downward and increases 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 pressure feeding piston 136 is provided in the small chamber S3. The umbrella packing 137 is deformed as shown in FIG. As a result, the cleaning water supplied from the cleaning water inlet PI flows into the pump chamber 139a through 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 cleaning water does not flow into the pump chamber 139a and conversely is not discharged from the cleaning water outlet PO.
[0059]
  On the other hand, when the pumping piston 136 of FIG. 5 moves upward and reduces 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 pumping 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 cleaning 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 through the small chamber S5, the small chamber S7, and the internal flow path P3.
[0060]
  The umbrella packing 137 provided in the small chamber S4 is deformed as shown in FIG. 6B when the pressure feed piston 136 moves upward, and when the pressure feed piston 136 moves downward, It does not deform in 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 the pumping piston 136 moves downward. Then, it is deformed as shown in FIG. Thereby, when the cleaning water in the pump chamber 139a is discharged from the cleaning water outlet PO, the cleaning water from the cleaning water inlet PI flows into the pump chamber 139b, and the cleaning water inlet PI enters the pump chamber 139a. When the cleaning water flows in, the cleaning water in the pump chamber 139b is discharged from the cleaning water outlet PO.
[0061]
  FIG. 7 is a view showing a pressure change of the pump 13 of FIG. The vertical axis in FIG. 7 indicates pressure, and the horizontal axis indicates time.
[0062]
  As shown in FIG. 7, cleaning water having a pressure Pi is supplied to the cleaning water inlet PI of the pump 13. In this case, the pressure Pa of the cleaning water in the pump chamber 139a changes as indicated by a dotted line by the vertical movement of the pumping piston 136 of FIG. On the other hand, the pressure Pb of the washing 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.
[0063]
  As described above, in the pump 13, the pressure feed piston 136 moves up and down, whereby pressure is alternately applied to the cleaning water in the pump chamber 139a or the pump chamber 139b, and the cleaning water at the cleaning water inlet PI is increased in pressure. And discharged from the washing water outlet PO.
[0064]
  Below, the change of the discharge pressure based on the operation | movement of the pump 13 is demonstrated. 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 buttocks nozzle 1 or the bidet nozzle 2.
[0065]
  FIGS. 8A to 8C are diagrams showing pressure changes of the pump 13 due to the difference in water flow set in the first embodiment. The vertical axis indicates the discharge pressure of the pump 13, and the horizontal axis indicates time..
[0066]
  FIG. 8A is a diagram showing the discharge pressure of the pump 13 when the user presses the water force adjustment switches 302a and 302b in FIG. 2 to set the water force to “strong”. In this case, the control unit 4 increases the rotational speed of the motor 130 of the pump 13. As a result, the vertical movement cycle of the pumping piston 136 of FIG. 5 is shortened. As a result, the fluctuation frequency of the discharge pressure of the pump 13 becomes high, and the fluctuation period of the discharge pressure becomes small. Further, the fluctuation center Po of the discharge pressure is increased, and the fluctuation range of the discharge pressure is increased.
[0067]
  FIG. 8B is a diagram illustrating the discharge pressure of the pump 13 when the user presses the water force adjustment switches 302a, 302b, and 302c of FIG. 2 and sets the water force to “medium”. In this case, the control part 4 makes the rotation speed of the motor 130 medium. As a result, the vertical movement cycle of the pumping piston 136 shown in FIG. 5 is moderate. As a result, the fluctuation frequency of the discharge pressure of the pump 13 is medium, and the fluctuation period of the discharge pressure is medium. Further, the fluctuation center Po of the discharge pressure is medium, and the fluctuation range of the discharge pressure is medium.
[0068]
  Further, FIG. 8C is a diagram showing the discharge pressure of the pump 13 when the user presses the water force adjustment switches 302a and 302c in FIG. 2 and sets the water force to “weak”. In this case, the control unit 4 decreases the rotation speed of the motor 130. As a result, the vertical movement cycle of the pressure-feed piston 136 of FIG. 5 becomes longer. As a result, the fluctuation frequency of the discharge pressure of the pump 13 is lowered, and the fluctuation period of the discharge pressure is increased. Further, the fluctuation center Po of the discharge pressure of the pump 13 becomes low, and the fluctuation range of the discharge pressure becomes small.
[0069]
  When the user depresses the water pressure change switch 304 of FIG. 2, the control unit 4 repeatedly increases and decreases the number of rotations of the motor 130 periodically. As a result, the vertical movement period of the pumping piston 136 of FIG. 5 periodically increases and decreases. As a result, the discharge pressure fluctuation cycle, the discharge pressure fluctuation center Po, and the discharge pressure fluctuation width of the pump 13 are repeatedly increased and decreased periodically. That is, as shown in FIGS. 8A to 8C, the mode of pressure fluctuation is periodically changed.
[0070]
  In the sanitary washing device 100 according to the present embodiment, the adjustment of the water flow is performed by changing the rotation speed of the pump 13. Accordingly, the user can adjust the flow rate (average pressure), the pressure fluctuation range, and the pressure fluctuation period of the cleaning water ejected from the nozzle unit 30 by the water adjustment switches 302a, 302b, and 302c.
[0071]
  Thus, by changing not only the flow rate of the cleaning water but also the pressure fluctuation range and the pressure fluctuation cycle, a feeling of cleaning different from the adjustment of only the flow rate can be obtained. Therefore, it is possible to obtain various cleaning feelings according to the user's preference.
[0072]
  In sanitary washing apparatus 100 according to the present embodiment, it is preferable to optimally control the pressure fluctuation range and the pressure fluctuation period, respectively, according to butt nozzle 1 and bidet nozzle 2. Thereby, comfort and usability are improved.
[0073]
  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. FIG. 9A is a sectional view taken along line B-B of the switching valve 14 in FIG. 9A, and FIG. 9D is a sectional view taken along line C-C of the switching valve 14 in FIG.
[0074]
  The switching valve 14 shown in FIG. 9 includes a motor 141, an inner cylinder 142, and an outer cylinder 143.
[0075]
  An inner cylinder 142 is inserted into the outer cylinder 143, and a 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 given by the control unit 4. As the motor 141 rotates, the inner cylinder 142 rotates.
[0076]
  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 the washing water outlet 143b, 143c is provided, a cleaning water outlet 143d is provided at a position different from the side cleaning water outlets 143b, 143c, and a cleaning water outlet 143e is provided at a position different from the side cleaning 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, a chamfered portion (concave portion) composed of a curved line and a straight line is formed around the holes 142e and 142f, and around the hole 142g, FIG. As shown in (), a chamfered portion (concave portion) formed by a straight line is formed.
[0077]
  By rotation of the inner cylinder 142, the hole 142e can face the cleaning water outlet 143b or 143c of the outer cylinder 143, the hole 142f can face the cleaning water outlet 143d of the outer cylinder 143, and the hole 142g The outer cylinder 143 can face the cleaning water outlet 143e.
[0078]
  The pipe 203 of FIG. 3 is connected to the cleaning water inlet 143a, the bidet nozzle 2 is connected to the cleaning water outlet 143b, and the first flow path of the butt nozzle 1 is connected to the cleaning water outlet 143c. The second flow path of the buttocks nozzle is connected to the water outlet 143d, and the nozzle cleaning nozzle 3 is connected to the cleaning water outlet 143e.
[0079]
  FIG. 10 is a cross-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 has rotated 0 degrees, 90 degrees, 135 degrees, 180 degrees, 225 degrees, and 270 degrees, respectively.
[0080]
  First, as shown in FIG. 10A, when the motor 141 is not rotated (0 degree), the chamfered portion (concave portion) around the hole 142e of the inner cylinder 142 faces the cleaning water outlet 143b of the outer cylinder 143. To do. Accordingly, 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 indicated by the arrow W1.
[0081]
  Next, as shown in FIG. 10B, when the motor 141 rotates the inner cylinder 142 by 90 degrees, the chamfered portion (concave portion) around the hole 142 g of the inner cylinder 142 is washed water of the outer cylinder 143. Opposite the outlet 143e. Accordingly, 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 an arrow W2.
[0082]
  Next, as shown in FIG. 10 (c), when the motor 141 rotates the inner cylinder 142 by 135 degrees, a part of the chamfered portion (concave portion) around the hole 142 g of the inner cylinder 142 is part of the outer cylinder 143. While facing the washing water outlet 143e, a part of the chamfered portion (concave portion) around the hole 142e of the inner cylinder 142 faces the washing water outlet 143c of the outer cylinder 143. Accordingly, 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.
[0083]
  Next, as shown in FIG. 10 (d), when the motor 141 rotates the inner cylinder 142 by 180 degrees, the chamfered portion (concave portion) around the hole 142 e of the inner cylinder 142 is washed water of the outer cylinder 143. Opposite the outlet 143c. Accordingly, 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 an arrow W3.
[0084]
  Next, as shown in FIG. 10 (e), when the motor 141 rotates the inner cylinder 142 by 225 degrees, a part of the chamfered portion (concave portion) around the hole 142 e of the inner cylinder 142 is part of the outer cylinder 143. And a part of the chamfered portion (concave portion) around the hole 142 f of the inner cylinder 142 faces the washing water outlet 143 d of the outer cylinder 143. Accordingly, a small amount of cleaning water passes through the inner cylinder 142 from the cleaning water inlet 143a and flows out from the cleaning water outlets 143c and 143d as indicated by arrows W3 and W4.
[0085]
  Further, as shown in FIG. 10 (f), when the motor 141 rotates the inner cylinder 142 by 270 degrees, the chamfered portion (concave portion) around the hole 142 f of the inner cylinder 142 is the washing water outlet of the outer cylinder 143. 143d. Accordingly, 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.
[0086]
  As described above, when the motor 141 rotates based on the control signal from the control unit 4, any of the holes 142e, 142f, 142g of the inner cylinder 142 faces the cleaning water outlets 143b to 143e of the outer cylinder 143, The washing water that has flowed in from the washing water inlet 143a flows out from any of the washing water outlets 143b to 143e.
[0087]
  FIG. 11 shows the flow rate of the washing water flowing out from the washing water outlets 143c and 143d of the switching valve 14 shown in FIG. 10, the flow rate of the washing water flowing out from the washing water outlet 143b into the bidet nozzle 2, and the nozzle washing from the washing water outlet 143e. FIG. 4 is a diagram showing the flow rate of cleaning water flowing out to the 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 cleaning water flowing out from the cleaning water outlets 143b to 143e. Further, a solid line Q1 indicates a change in the flow rate of the wash water flowing out from the wash water outlet 143c to the buttocks nozzle 1, a dashed-dotted line Q2 indicates a change in the flow rate of the wash water flowing out from the wash water outlet 143d to the buttocks nozzle 1, A dotted line Q3 indicates a change in the flow rate of the cleaning water flowing out from the cleaning water outlet 143b to the bidet nozzle 2, and a broken line Q4 indicates a change in the flow rate of the cleaning water flowing out from the cleaning water outlet 143e to the nozzle cleaning nozzle 3.
[0088]
  For example, as shown in FIG. 11, when the motor 141 does not rotate (0 degree), the flow rate Q3 of the cleaning water flowing out from the cleaning water outlet 143b to the bidet nozzle 2 shows the maximum value. As the rotation angle of the motor 141 increases, the flow rate Q3 of the cleaning water flowing out from the cleaning water outlet 143b to the bidet nozzle 2 decreases, and the flow rate Q4 of the cleaning water flowing out from the cleaning water outlet 143e to the nozzle cleaning nozzle 3 increases. .
[0089]
  Next, when the motor 141 rotates 90 degrees, the flow rate Q4 of the cleaning water flowing out from the cleaning water outlet 143e to the nozzle cleaning nozzle 3 shows the maximum value. As the rotation angle of the motor 141 further increases, the flow rate Q4 of cleaning water flowing out from the cleaning water outlet 143e to the nozzle cleaning nozzle 3 decreases, and the flow rate Q1 of cleaning water flowing out from the cleaning water outlet 143c to the buttocks nozzle 1 becomes To increase.
[0090]
  Subsequently, when the motor 141 rotates 180 degrees, the flow rate Q1 of the cleaning water flowing out from the cleaning water outlet 143c to the buttocks nozzle 1 shows a maximum value. Then, as the rotation angle of the motor 141 is further increased, the flow rate Q1 of the wash water flowing out from the wash water outlet 143c to the buttocks nozzle 1 is decreased, and the flow rate Q2 of the wash water flowing out from the wash water outlet 143d to the buttocks nozzle 1 is increased. To do.
[0091]
  Subsequently, when the motor 141 rotates 270 degrees, the flow rate Q2 of the cleaning water flowing out from the cleaning water outlet 143d to the butt nozzle 1 shows the maximum value. Then, as the rotation angle of the motor 141 is further increased, the flow rate Q2 of the wash water flowing out from the wash water outlet 143d to the buttocks nozzle 1 is decreased, and the flow rate Q3 of the wash water flowing out from the wash water outlet 143b to the bidet nozzle 2 is increased. .
[0092]
  As described above, the controller 4 can control the flow rate of the cleaning water flowing out from the cleaning water outlets 143b to 143e by 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 chamfered portion (concave portion) around them faces 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 from any of the wash water outlets 143b to 143e.
[0093]
  Next, the nozzle part 30 of FIG. 3 is demonstrated. 12 is a schematic cross-sectional view of the nozzle unit 30 and the switching valve 14 of FIG.
[0094]
  As shown in FIG. 12, the washing water outlets 143c and 143d of the switching valve 14 are connected to the buttocks 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 Connected to the nozzle cleaning nozzle 3.
[0095]
  First, the configuration of the buttocks 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.
[0096]
  The buttocks nozzle 1 includes a cylindrical piston portion 20, a cylindrical cylinder portion 21, seal packings 22 a and 22 b, and a spring 23.
[0097]
  An ejection hole 25 for ejecting cleaning water is formed near the tip of the piston portion 20. Flange-shaped stopper portions 26 a and 26 b are provided at the rear end of the piston portion 20. Further, seal packings 22a and 22b are attached to the stopper portions 26a and 26b, respectively. A first flow path 27a that communicates with the ejection hole 25 from the rear end surface is formed inside the piston part 20, and communicates with the ejection hole 25 from the peripheral surface of the piston part 20 between the stopper part 26a and the stopper part 26b. A second flow path 27b is formed. A cylindrical vortex chamber 29 is formed around the ejection hole 25, and a contracted flow portion 31 is interposed between the first flow path 27 a and the cylindrical vortex chamber 29.
[0098]
  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. Thereby, a stopper surface 21c on which the stopper portion 26a of the piston portion 20 can abut via the seal packing 22a is formed between the small diameter portion and the intermediate portion, and between the intermediate portion and the large diameter portion, A stopper surface 21b is formed on which the stopper portion 26b of the piston portion 20 can abut via the seal packing 22b. A cleaning water inlet 24 a is provided at the rear end surface of the cylinder portion 21, a cleaning water inlet 24 b is provided at the peripheral surface of the intermediate portion of the cylinder portion 21, and an opening portion 21 a is provided at the front end surface of the cylinder portion 21. Is provided. The internal space of the cylinder part 21 becomes the temperature fluctuation buffer part 28. The cleaning water inlet 24 a is provided eccentrically at a position different from the central 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 protrudes most from the cylinder part 21, the washing water inlet 24b communicates with the second flow path 27b. Details of connection of the cleaning water inlet 24b with the second flow path 27b will be described later.
[0099]
  The piston part 20 is movably inserted into the cylinder part 21 so that the stopper part 26b is positioned in the temperature fluctuation buffer part 28 and the tip part protrudes from the opening part 21a.
[0100]
  Further, the spring 23 is disposed between the stopper portion 26 a of the piston portion 20 and the periphery of the opening portion 21 a of the cylinder portion 21, and biases the piston portion 20 toward the rear end side of the cylinder portion 21.
[0101]
  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 outer peripheral surface of the piston portion 20 and the inner peripheral surface of the opening portion 21a of the cylinder portion 21 are formed. A minute gap is formed between them.
[0102]
  Next, the bidet nozzle 2 includes a cylindrical piston portion 20e, a cylindrical cylinder portion 21e, a seal packing 22e, and a spring 23e.
[0103]
  In the vicinity of the tip of the piston portion 20e, an ejection hole 25e for ejecting cleaning water is formed. A flange-shaped stopper portion 26e is provided at the rear end of the piston portion 20e. A seal packing 22e is attached to the stopper portion 26e. A flow path 27e that communicates from the rear end surface to the ejection hole 25 is formed in the piston portion 20e.
[0104]
  On the other hand, the cylinder part 21e consists of a small diameter part on the front end side and a large diameter part on the rear end side. Thereby, between the small diameter portion and the large diameter portion, a stopper surface 21f is formed on which the stopper portion 26e of the piston portion 20e can abut via the seal packing 22e. A cleaning water inlet 24e is provided on the rear end surface of the cylinder portion 21e, and an opening portion 21g is provided on the 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 provided eccentrically at a position different from the central axis of the cylinder portion 21e. The washing water inlet 24e is connected to the washing water outlet 143b of the switching valve 14.
[0105]
  The piston part 20e is movably inserted into the cylinder part 21e so that the stopper part 26e is located in the temperature fluctuation buffer part 28e and the tip part protrudes from the opening part 21g.
[0106]
  Further, the spring 23e is disposed between the stopper portion 26e of the piston portion 20e and the peripheral edge of the opening portion 21g of the cylinder portion 21e, and biases the piston portion 20e toward the rear end side of the cylinder portion 21e.
[0107]
  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 portion 21g of the cylinder portion 21e. A minute gap is formed.
[0108]
  Next, the nozzle cleaning nozzle 3 is configured by a cylindrical ejection portion 20k. In the vicinity of the tip of the ejection part 20k, an ejection hole 25k for ejecting cleaning water to the buttocks nozzle 1 side and an ejection hole 25m for ejecting cleaning water to the bidet nozzle 2 side are formed. A washing water inlet 24k is provided at the rear end of the ejection portion 20k. A flow path 27k is formed from the washing water inlet 24k provided at the rear end of the ejection part 20k to the ejection hole 25k and the ejection hole 25m. The washing water inlet 24k is connected to the washing water outlet 143e of the switching valve 14.
[0109]
  Accordingly, the cleaning water supplied from the cleaning water outlet 143e of the switching valve 14 is ejected from the ejection hole 25k and the ejection hole 25m through the flow path 27k via the cleaning water inlet 24k of the ejection part 20k of the nozzle cleaning nozzle 3. The The butt nozzle 1 and the bidet nozzle 2 are cleaned by the cleaning water ejected from the ejection holes 25k and the ejection holes 25m.
[0110]
  Next, operations of the buttocks nozzle 1 and the bidet nozzle 2 in FIG. 12 will be described. First, the operation of the buttocks 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 in FIG.
[0111]
  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 is retracted in the direction opposite to the direction of the arrow X by the elastic force of the spring 23, It is accommodated in the cylinder part 21. As a result, the piston part 20 is in a state in which it does not protrude the most from the opening part 21 a of the cylinder part 21. At this time, the temperature fluctuation buffer portion 28 is not formed in the cylinder portion 21.
[0112]
  Next, as shown in FIG. 13 (b), when the supply of cleaning water is started from the cleaning water inlet 24 a of the cylinder portion 21, the piston portion 20 resists the elastic force of the spring 23 due to the pressure of the cleaning water. Gradually advance in the X direction. As a result, the temperature fluctuation buffer 28 is formed in the cylinder part 21 and the washing water flows into the temperature fluctuation buffer 28.
[0113]
  Since the cleaning water inlet 24 a is provided at a position that is eccentric with respect to the central axis of the cylinder portion 21, the cleaning water that has flowed into the temperature fluctuation buffer portion 28 circulates in a spiral shape as indicated by an arrow V. Part of the washing water in the temperature fluctuation buffer portion 28 passes through a minute gap between the outer peripheral surface 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. 21 flows out from a minute gap between the inner peripheral surface of the opening 21 a and is supplied to the cylindrical vortex chamber 29 through the first flow path 27 a of the piston portion 20 and is slightly ejected from the ejection hole 25. Details of the cylindrical vortex chamber 29 will be described later.
[0114]
  When the piston portion 20 further advances, the stopper portions 26a and 26b come into watertight contact with the stopper surfaces 21c and 21b of the cylinder portion 21 via the seal packings 22a and 22b, as shown in FIG. As a result, a small gap between the outer peripheral surfaces of the stopper portions 26 a and 26 b 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 21 a of the cylinder portion 21 to be formed. The flow path leading to the minute gap is blocked. Further, the cleaning water supplied from the cleaning water inlet 24 b is supplied to the cylindrical vortex chamber 29 through the second flow path 27 b of the piston portion 20. Accordingly, the cleaning water supplied to the cylindrical vortex chamber 29 through the second flow path 27b of the piston portion 20 is mixed with the cleaning water supplied through the first flow path 27a of the piston portion 20, and the ejection holes 25 are supplied. Erupted from.
[0115]
  In this way, the cleaning water supplied from the cleaning water outlets 143c and 143d of the switching valve 14 passes through the cleaning water inlets 24a and 24b of the cylinder part 21 and the first flow path 27a and the second flow path in the piston part 20 respectively. It is guided to the cylindrical vortex chamber 29 through the flow path 27 b and is ejected from the ejection hole 25 through the cylindrical vortex chamber 29.
[0116]
  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.
[0117]
  First, as shown in FIG. 14 (a), when the cleaning water is not supplied from the cleaning water inlet 24e of the cylinder portion 21e, the piston portion 20e is retracted in the direction opposite to the direction of the arrow X by the elastic force of the spring 23e, It is accommodated in the cylinder part 21e. As a result, the piston part 20e will be in the state which protrudes most from the opening part 21g of the cylinder part 21e. At this time, the temperature fluctuation buffer portion 28e is not formed in the cylinder portion 21e.
[0118]
  Next, as shown in FIG. 14 (b), when the supply of cleaning water is started from the cleaning water inlet 24e of the cylinder portion 21e, the piston portion 20e moves against the elastic force of the spring 23e by the pressure of the cleaning water. Gradually advance in the X direction. Thereby, the temperature fluctuation buffer part 28e is formed in the cylinder part 21e, and the washing water flows into the temperature fluctuation buffer part 28e.
[0119]
  Since the cleaning water inlet 24e is provided at a position that is eccentric with respect to the central axis of the cylinder portion 21e, the cleaning water that has flowed into the temperature fluctuation buffer portion 28e recirculates in a spiral shape as indicated by an arrow V. A part of the washing water of the temperature fluctuation buffer portion 28e passes through a 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, and the outer peripheral surface of the piston portion 20e and the cylinder portion 21e. While flowing out from a minute gap between the inner peripheral surface of the opening 21g, it is slightly ejected from the ejection hole 25e through the flow path 27e of the piston portion 20e.
[0120]
  When the piston portion 20e further advances, as shown in FIG. 14C, the stopper portion 26e comes into watertight contact with the stopper surface 21f of the cylinder portion 21e via the seal packing 22e. Thereby, between the outer peripheral surface of the piston part 20e and the inner peripheral surface of the opening part 21g of the cylinder part 21e from the minute gap between the outer peripheral surface of the stopper part 26e of the piston part 20e and the inner peripheral surface of the cylinder part 21e. The flow path leading to the minute gap is blocked. Thereby, it ejects from the ejection hole 25e through the flow path 27e of the piston part 20e.
[0121]
  In this way, the cleaning water supplied from the cleaning water outlet 143b of the switching valve 14 is ejected from the circular ejection hole 25e through the flow path 27e in the piston portion 20e via the cleaning water inlet 24e of the cylinder portion 21e.
[0122]
  Next, FIG. 15 is a schematic view of the tip of the piston portion 20 of the buttocks nozzle 1 in FIG. FIG. 15A shows the case where the tip of the piston part 20 is viewed from the top, and FIG. 15B shows the case where the tip of the piston 20 is viewed from the side.
[0123]
  First, as shown in FIG. 15 (b), the first flow path 27 a is connected to the peripheral surface of the cylindrical cylindrical vortex chamber 29, and the second flow path 27 b is connected to the bottom surface 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.
[0124]
  As shown in FIG. 15A, the cleaning water supplied from the first flow path 27 a to the cylindrical vortex chamber 29 is in a spiral state indicated by an arrow Z due to the curved surface shape of the inner peripheral surface of the cylindrical vortex chamber 29. To flow. On the other hand, the wash water supplied from the second flow path 27b to the cylindrical vortex chamber 29 flows in a straight line in the vertically upward direction.
[0125]
  In this way, in the cylindrical vortex chamber 29, the spiral cleaning water in the first flow path 27a and the linear cleaning water in the second flow path 27b are mixed, and the cleaning water is ejected from the ejection holes 25. .
[0126]
  For example, when the flow rate of cleaning water supplied from the first flow path 27a is larger than the flow rate of cleaning supplied from the second flow path 27b, the cleaning water mixed in the cylindrical vortex chamber 29 is cylindrical. In order to strongly maintain the spiral state due to the curved shape of the cylindrical vortex chamber 29, the cylindrical vortex chamber 29 is ejected as a dispersed swirl flow at a wide angle indicated by an arrow H shown in FIG. On the other hand, when the flow rate of the wash water supplied from the second flow path 27b is larger than the flow rate of the wash water supplied from the first flow path 27a, the wash water mixed in the cylindrical vortex chamber 29 is linear. In order to maintain the state strongly, it is ejected as a linear flow at a narrow angle indicated by an arrow S shown in FIG.
[0127]
  Accordingly, the control unit 4 controls the motor 141 of the switching valve 14 to change the flow rate ratio of the cleaning water outlets 143c and 143d, whereby the jet form of the cleaning water jetted from the jet holes 25 changes.
[0128]
  In the present embodiment, when the cleaning area adjustment switch 302f is pressed after the bottom switch 305 is pressed, the flow rate of the cleaning water at the cleaning water outlet 143c becomes larger than the flow rate of the cleaning water at the cleaning water outlet 143d. The eruption form approaches a linear flow. Thereby, the spreading angle of the washing water is reduced. If the cleaning area adjustment switch 302e is pressed after the butt 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 jet form of the cleaning water is dispersedly swirled. Approach the current. Thereby, the spreading angle of the cleaning water is increased.
[0129]
  In addition, when the washing area adjustment switch 302d having a large value is pressed after the bottom switch 305 is pressed, the flow rate of the cleaning water at the cleaning water outlet 143c becomes larger than the flow rate of the cleaning water at the cleaning water outlet 143d. The eruption form approaches a linear flow. Thereby, the spreading angle of the washing water is reduced. When the washing area adjustment switch 302d having a small value is pressed after the butt 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 ejection of the cleaning water The shape approaches a distributed swirl flow. Thereby, the spreading angle of the cleaning water is increased.
[0130]
  FIGS. 16A to 16E are explanatory views of 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.
[0131]
  FIGS. 16A to 16E show states in which the switching valve 14 is rotated by 0 degrees, 90 degrees, 180 degrees, 225 degrees, and 270 degrees, respectively.
[0132]
  First, when the switching valve 14 is not rotated (0 degrees), the driving state of the pump is on, and the washing water flows out from the washing water outlet 143b as shown by the arrow W1 in FIG. From the bidet nozzle 2.
[0133]
  Next, while the switching valve 14 is rotated from 0 degree to 90 degrees, the driving state of the pump is off, so that the washing water does not flow out.
[0134]
  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 the arrow W2 in FIG. It ejects from the nozzle cleaning nozzle 3.
[0135]
  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.
[0136]
  Next, when the switching valve 14 is rotated 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 the arrow W3 in FIG. It ejects from the nozzle 1. In this case, as described with reference to FIG. 15B, the wash water is ejected as a dispersed swirl flow.
[0137]
  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 washed water outlets 143c and 143d as indicated by arrows W3 and W4 in FIG. And flows out from the butt nozzle 1. In this case, as described with reference to FIG. 15B, the flow rate ratio of the washing water flowing out from the washing water outlets 143c and 143d changes, and the washing water ejection form approaches a linear flow from the dispersed swirling flow.
[0138]
  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 the arrow W4 in FIG. As described in 15 (b), the washing water is ejected as a linear flow.
[0139]
  FIG. 17 is a graph showing an example of the operation of the sanitary washing device 200. In FIG. 17, the vertical axis represents the rotation angle of the switching valve and the driving state of the pump, and the horizontal axis represents time.
[0140]
  First, when the butt switch 305 of the remote control device 300 is pressed, 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 buttocks nozzle 1 and 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 a time point t3, the driving state of the pump is turned on, and cleaning water is ejected from the butt nozzle 1. In this case, the washing water is ejected as a dispersed swirl flow as described with reference to FIG.
[0141]
  Next, when the cleaning area adjustment switch 302e of the remote control device 300 is pressed at time t4, 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 swirl flow to the linear flow as described with reference to FIG. Along with this, the spread angle of the cleaning water changes and the cleaning area changes.
[0142]
  Next, when the cleaning area adjustment switch 302f of the remote control device 300 is pressed down at time t6, the switching valve rotates reversely, rotates from 270 degrees to 180 degrees, and stops at time t7. From time t6 to time t7, the jet form changes from a linear flow to a dispersed swirl flow. Along with this, the spread angle of the cleaning water changes and the cleaning area changes. As is clear from the graph of FIG. 17, the speed at which the switching valve 14 rotates from 180 degrees to 270 degrees is different from the speed at which the switching valve 14 rotates from 270 degrees to 180 degrees. Details will be described later.
[0143]
  Next, when the stop switch 307 of the separation operation device 300 is pressed at time t8, the switching valve 14 rotates from 180 degrees to 90 degrees and stops at time t9. In addition, since the drive state of the pump is OFF from time t8 to time t9, the cleaning water is not ejected. At a time point t9, the pump is turned on, cleaning water is ejected from the nozzle cleaning nozzle 3, and the buttocks nozzle 1 and the bidet nozzle 2 are cleaned. The switching valve 14 rotates to 0 degree at time t10 and stops at time t11. In addition, since the drive state of a pump is OFF between the time t10 and the time t11, a wash water is not ejected.
[0144]
  FIG. 18 is a schematic view showing a change in the ejection form of the washing water ejected from the posterior nozzle 1.
[0145]
  As shown in FIG. 18, the rate of change of the spread angle when the spread angle of the cleaning water is reduced (hereinafter referred to as the reduction rate) is V1, and the rate of change of the spread angle when the spread angle of the wash water is enlarged ( Hereinafter, it is referred to as an enlargement speed). As shown in FIG. 18, the rotation speed of the motor 141 in FIG. 9 is controlled so that the reduction speed V1 is smaller than the enlargement speed V2. Thereby, 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 smaller than the speed at which the cleaning area is increased.
[0146]
  When the area change switch 303 of the remote operation device 300 is pressed, the washing water spread angle automatically repeats expansion and reduction. At this time, the reduction speed is smaller than the enlargement speed. As a result, it acts to remove dirt from the outside toward the center of the inside, and the scattering of dirt to the outer periphery can be prevented.
[0147]
  FIG. 19 is a graph of the washing sensation intensity with respect to the washing area when the flow rate of the washing water is constant. The vertical axis represents the cleaning body feel intensity, and the horizontal axis represents the cleaning area of the cleaning water ejected from the posterior nozzle 1. As the curve ST shown in FIG. 19 shows, the cleaning feeling intensity decreases as the cleaning area increases, and the cleaning feeling intensity increases as the cleaning area decreases. Accordingly, it is possible to change the cleaning experience intensity by changing the cleaning area.
[0148]
  In the sanitary washing apparatus 100 according to the present embodiment, the water pipe 201 corresponds to the water supply source, the nozzle portion 30 corresponds to the ejection means, and the butt nozzle 1, the bidet nozzle 2, and the nozzle cleaning nozzle 3 correspond to a plurality of nozzles. The pump 13 corresponds to the pressurizing means and the reciprocating pump, the pumping piston 136 corresponds to the pressurizing member, the first flow path 27a corresponds to the first flow path, and the second flow path 27b Corresponding to the second flow path, the cylindrical vortex chamber 29 corresponds to the rotating flow generating means, the switching valve 14 corresponds to the flow rate adjusting means and the switching means, the control unit 4 corresponds to the control means and the command means, The water force adjustment switches 302a, 302b, and 302c correspond to pressure fluctuation setting means, the cleaning area adjustment switches 302d, 302e, and 302f correspond to spread angle setting means, and the ceramic heater 505 corresponds to the heating means. To.
[0149]
  (Second Embodiment)
  Hereinafter, the main body 200a of the sanitary washing device 100 according to the second embodiment will be described.
[0150]
  FIG. 20 is a schematic diagram showing the configuration of the main body 200a of the sanitary washing device 100 according to the second embodiment.
[0151]
  The main body 200a shown in FIG. 20 is different from the main body 200 shown in FIG. 3 in that a wire 29c for changing the ejection form of the buttocks nozzle 1 and a motor M0 for controlling the wire 29c are provided. And the switching valve 14 is switched to the three flow paths of the buttocks nozzle 1, bidet nozzle 2 and nozzle cleaning nozzle 3. The details of changing the ejection form of the butt nozzle 1 by the motor M0 will be described later.
[0152]
    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 BB sectional drawing of the switching valve 14 of a).
[0153]
  The switching valve 14 shown in FIG. 21 includes a motor 141, an inner cylinder 142, and an outer cylinder 143.
[0154]
  An inner cylinder 142 is inserted into the outer cylinder 143, and a 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 given by the control unit 4. As the motor 141 rotates, the inner cylinder 142 rotates.
[0155]
  As shown in FIGS. 21 (a), (b), and (c), a cleaning water inlet 143a is provided at one end of the outer cylinder 143, and cleaning water outlets 143b and 143c are provided at opposite positions on the sides. The cleaning water outlet 143d is provided at a position different from the side cleaning water outlets 143b and 143c. Holes 142 e and 142 f are provided at different positions of the inner cylinder 142. A chamfered portion is formed around the hole 142e as shown in FIG. By rotation of the inner cylinder 142, the hole 142e can face the cleaning water outlet 143b or 143c of the outer cylinder 143, and the hole 142f can face the cleaning water outlet 143d of the outer cylinder 143.
[0156]
  20 is connected to the cleaning water inlet 143a, the butt nozzle 1 is connected to the cleaning water outlet 143b, the bidet nozzle 2 is connected to the cleaning water outlet 143c, and the cleaning water outlet 143d is connected to the cleaning water outlet 143d. A nozzle cleaning nozzle 3 is connected.
[0157]
  FIG. 22 is a cross-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 cleaning water outlet 143 d of the outer cylinder 143, the hole 142 e of the inner cylinder 142 is formed on the outer cylinder 143. The cleaning water outlets 143b and 143c are not opposed to each other, and the hole 142f of the inner cylinder 142 is not opposed to the cleaning water outlet 143d of the outer cylinder 143. Therefore, the washing water does not flow out from any of the washing water outlets 143b, 143c, 143d.
[0158]
  Next, as shown in FIG. 22B, when the motor 141 rotates the inner cylinder 142 by 45 degrees, a part of the chamfered portion around the hole 142e of the inner cylinder 142 is washed water of the outer cylinder 143. Opposite 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 indicated by an arrow W1.
[0159]
  Further, 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 cleaning water outlet 143b of the outer cylinder 143. Accordingly, 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 indicated by an arrow W2.
[0160]
  Further, when the motor 141 rotates the inner cylinder 142 by 270 degrees, the hole 142e of the inner cylinder 142 faces the cleaning water outlet 143c 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.
[0161]
  When the motor 141 rotates the inner cylinder 142 by 180 degrees, the hole 142f of the inner cylinder 142 faces the cleaning 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.
[0162]
  As described above, when the motor 141 rotates based on the control signal from the control unit 4, one of the holes 142 e and 142 f of the inner cylinder 142 faces one of the cleaning water outlets 143 b to 143 d of the outer cylinder 143. In this case, the cleaning water flows out, and when neither of the holes 142e and 142f of the inner cylinder 142 is opposed to any of the cleaning water outlets 143b to 143d of the outer cylinder 143, the cleaning water does not flow out.
[0163]
  Next, the bottom nozzle 1 of the nozzle unit 30 in FIG. 20 will be described. FIG. 23 is a cross-sectional view of the bottom nozzle 1 of the nozzle portion 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 butt nozzle 1 in FIG.
[0164]
  As shown in FIG. 23, the buttocks nozzle 1 includes a cylindrical piston portion 20, a cylindrical cylinder portion 21, a seal packing 22, and a spring 23.
[0165]
  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 adjustment 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 adjustment piece 29a, and A wire 29c is provided. The ejection form adjusting piece 29a is biased so as to be inserted into the ejection hole 25 by a spring 29b. 20 against the elasticity of the spring 29b by pulling the wire 29c in the direction of arrow z by the motor M0 in FIG.Spout shape adjustment pieceThe position of 29a can be adjusted. A flange-shaped stopper portion 26 is provided at the rear end of the piston portion 20. A seal packing 22 is attached to the stopper portion 26. A flow path 27 that communicates from the rear end surface to the ejection hole 25 is formed inside the piston portion 20.
[0166]
  On the other hand, the cylinder part 21 consists of a small diameter part on the front end side and a large diameter part on the rear end side. As a result, a stopper surface 21 b is formed between the small diameter portion and the large diameter portion, with which the stopper portion 26 can abut via the seal packing 22. A cleaning water inlet 24 is provided at the rear end surface of the cylinder portion 21, and an opening 21 a is provided at the front end surface of the cylinder portion 21. The internal space of the cylinder part 21 becomes the temperature fluctuation buffer part 28. The cleaning water inlet 24 is eccentrically provided at a position different from the central 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.
[0167]
  The piston part 20 is movably inserted into the cylinder part 21 so that the stopper part 26 is positioned in the temperature fluctuation buffer part 28 and the tip part protrudes from the opening part 21a.
[0168]
  Further, the spring 23 is disposed between the stopper portion 26 of the piston portion 20 and the peripheral edge of the opening portion 21 a of the cylinder portion 21, and biases the piston portion 20 toward the rear end side of the cylinder portion 21.
[0169]
  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 portion 21 a of the cylinder portion 21. A minute gap is formed.
[0170]
  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 in FIG.
[0171]
  First, as shown in FIG. 24A, when the cleaning water is not supplied from the cleaning water inlet 24 of the cylinder part 21, the piston part 20 is retracted in the direction opposite to the direction of the arrow X by the elastic force of the spring 23, It is accommodated in the cylinder part 21. As a result, the piston part 20 is in a state in which it does not protrude the most from the opening part 21 a of the cylinder part 21. At this time, the temperature fluctuation buffer portion 28 is not formed in the cylinder portion 21.
[0172]
  Next, as shown in FIG. 24 (b), when the supply of cleaning water is started from the cleaning water inlet 24 of the cylinder portion 21, the piston portion 20 resists the elastic force of the spring 23 by the pressure of the cleaning water. Gradually advance in the X direction. As a result, the temperature fluctuation buffer 28 is formed in the cylinder part 21 and the washing water flows into the temperature fluctuation buffer 28.
[0173]
  Since the cleaning water inlet 24 is provided at a position that is eccentric with respect to the central axis of the cylinder portion 21, the cleaning water that has flowed into the temperature fluctuation buffer portion 28 circulates in a spiral shape as indicated by an arrow V. A part of the washing water of the temperature fluctuation buffer portion 28 passes through a 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, and the outer peripheral surface of the piston portion 20 and the cylinder portion 21. The liquid flows out from a minute gap between the inner peripheral surface of the opening 21 a and is ejected from the ejection hole 25 through the flow path 27 of the piston part 20.
[0174]
  When the piston part 20 further advances, the stopper part 26 comes into watertight contact with the stopper surface 21b of the cylinder part 21 via the seal packing 22, as shown in FIG. Thereby, between the outer peripheral surface of the piston part 20 and the inner peripheral surface of the opening part 21a of the cylinder part 21 from the micro clearance gap between the outer peripheral surface of the stopper part 26 of the piston part 20, and the inner peripheral surface of the cylinder part 21. The flow path leading to the minute gap is blocked. Therefore, the cleaning water in the temperature fluctuation buffer portion 28 is ejected from the ejection hole 25 only through the flow path 27 in the piston portion 20.
[0175]
  FIGS. 25A to 25C are explanatory diagrams of the cleaning water ejected from the ejection hole 25 of the buttocks nozzle 1 in the second embodiment.
[0176]
  FIG. 25 (a) is a schematic diagram showing the ejection form of the washing water when the tip of the ejection form adjusting piece 29a is taken out from the ejection hole 25. FIG. In the state where the tip of the ejection configuration adjusting piece 29a is taken out from the ejection hole 25, the distance between the outer peripheral surface of the ejection configuration adjusting piece 29a and the ejection hole 25 is sufficiently large. I do not receive it. Accordingly, the washing water is ejected from the ejection hole 25 in a linear flow as shown by the broken line.
[0177]
  FIG. 25 (b) is a schematic diagram showing the ejection form of the washing water when the tip of the ejection form adjusting piece 29 a is inserted into the ejection hole 25. In the state where the tip of the ejection configuration adjusting piece 29a is inserted into the ejection hole 25, the distance between the outer peripheral surface of the ejection configuration adjusting piece 29a and the ejection hole 25 is reduced, so that the washing water has a conical shape of the ejection configuration adjusting piece 29a. It flows along the outer peripheral surface and is ejected so as to spread from the ejection hole 25 as indicated by arrows W2 and W3. Thereby, it is ejected as a jet having a spread as shown by a broken line. As shown in FIG. 25C, the cross section of the cleaning water ejected from the ejection hole 25 is circular. By adjusting the position of the ejection form adjusting piece 29a in the ejection hole 25 by the wire 29c, the spread angle of the cleaning water ejected from the ejection hole 25 can be changed. Thereby, the cleaning area of the surface to be cleaned can be changed.
[0178]
  FIGS. 26A to 26C are diagrams illustrating other examples of the ejection form adjusting piece provided in the butt nozzle 1 in the second embodiment. 26 has an inverted frustoconical outer peripheral surface. Spout formAdjustment piece29a is urged to be pushed out from the ejection hole 25 by a spring 29b. The position of the ejection configuration adjusting piece 29a can be adjusted against the elasticity of the spring 29b by pulling the wire 29c in the direction of arrow z by the motor M0 in FIG.
[0179]
  FIG. 26 (a) is a schematic diagram showing the ejection form of the washing water when the ejection form adjusting piece 29a is pushed out from the ejection hole 25. FIG. In the state where the ejection shape adjusting piece 29a is pushed out from the ejection hole 25, the distance between the outer peripheral surface of the ejection shape adjusting piece 29a and the ejection hole 25 is sufficiently large, so that the washing water is not affected by the outer peripheral surface of the ejection shape adjusting piece 29a. Accordingly, the washing water is ejected from the ejection hole 25 in a linear flow as shown by the broken line.
[0180]
  FIG. 26 (b) is a schematic diagram showing the ejection form of the washing water when the ejection form adjusting piece 29 a is inserted into the ejection hole 25. In the state where the ejection shape adjustment piece 29a is inserted into the ejection hole 25, the distance between the outer periphery of the ejection shape adjustment piece 29a and the ejection hole 25 is reduced, so that the washing water is an inverted frustoconical outer peripheral surface of the ejection shape adjustment variation 29a. And is ejected so as to spread from the ejection hole 25 as indicated by arrows w3 and w4. Thereby, it is ejected as a jet having a spread as shown by a broken line. As shown in FIG.26 (c), the cross section of the wash water ejected from the ejection hole 25 becomes an annular shape. By adjusting the position of the ejection form adjusting piece 29a in the ejection hole 25 by the wire 29c, the spread angle of the cleaning water ejected from the ejection hole 25 can be changed. Thereby, the cleaning area of the surface to be cleaned can be changed.
[0181]
  In the sanitary washing apparatus 100 according to the present embodiment, the ejection form adjusting pieces 29a and 29b correspond to movable members, and the motor M0 corresponds to a drive unit and an electrical drive unit.
[0182]
  (Third embodiment)
  Hereinafter, the main body 200b of the sanitary washing device 100 according to the third embodiment will be described.
[0183]
  FIG. 27 is a schematic diagram illustrating an example of the configuration of the main body 200b of the sanitary washing device 100 according to the third embodiment.
[0184]
  The main body 200b shown in FIG. 27 is different from the main body 200a shown in FIG.44And toilet cleaning nozzle44And a switching valve 15 for switching the flow path of the nozzle cleaning nozzle 3 and a motor M1 for controlling the switching valve 15 are provided.
[0185]
  The control unit 4 rotates the motor M1 based on a signal wirelessly transmitted from the remote control device 300 in FIG. Thereby, the switching valve 15 supplies cleaning water to one of the toilet cleaning nozzle 4 and the nozzle cleaning nozzle 3 of the nozzle portion 30.
[0186]
  FIG. 28 shows a toilet cleaning nozzle44It is the schematic diagram which showed a mode that washing water was ejected from. Toilet bowl washing nozzle by signal from remote control device 30044Moves, and washing water is spouted downward toward the toilet 600. Toilet bowl cleaning nozzle44May be a nozzle having the form described in any of FIG. 15, FIG. 25, and FIG. Thereby, toilet bowl washing | cleaning can be performed effectively.
[0187]
  The sanitary washing device according to the present invention is a sanitary washing device that jets wash water supplied from a water supply source to a human body, and jetting means that jets wash water and can change the spreading angle of the wash water that is jetted. Pressurizing means for pressurizing the wash water while causing periodic pressure fluctuations to the wash water supplied from the water supply source and ejecting it from the ejection means; and control means for controlling the spread angle of the wash water ejected from the ejection means; Is provided.
[0188]
  In the sanitary washing apparatus according to the present invention, the wash water supplied from the water supply source is pressurized while being periodically subjected to pressure fluctuations by the pressurizing means. Therefore, the cleaning stimulation effect is enhanced even with a small flow rate.
[0189]
  Further, the wash water ejected from the ejection means is ejected toward the human body with the spread angle controlled by the spread angle control means. Therefore, the user can not only adjust the flow rate but also obtain various cleaning feelings and cleaning powers according to taste and physical condition.
[0190]
  Further provided is a spread angle setting means for setting a spread angle of the wash water ejected from the spray means, and the control means controls the spread angle of the wash water ejected from the spray means based on the setting of the spread angle setting means. May be. In this case, based on the setting of the cleaning water spread angle setting means, the cleaning water spread angle by the jetting means can be controlled. Therefore, the user can change the cleaning area by adjusting the spread angle of the cleaning water ejected from the ejection means.
[0191]
  The spread angle setting means for setting the spread angle of the wash water ejected from the ejection means may be provided, and the spread angle setting means may comprise a switch capable of changing the spread angle of the wash water stepwise. In this case, based on the setting of the spread angle setting means, the spread angle of the cleaning water ejected from the ejection means can be controlled stepwise. Therefore, the user can easily select the cleaning water spread angle and the cleaning area according to his / her preference.
[0192]
  The spread angle setting means may include a switch that can continuously change the spread angle of the cleaning water. In this case, the spread angle of the wash water ejected from the ejection means can be continuously controlled based on the setting of the spread angle setting means. Therefore, the user can easily adjust the cleaning water spreading angle and cleaning area according to his / her preference.
[0193]
  The control means may continuously expand or reduce the spread angle of the cleaning water ejected from the ejection means based on the setting of the spread angle setting means. In this case, based on the setting of the spread angle setting means, the spread angle of the cleaning water ejected from the ejection means can be continuously expanded or reduced. Therefore, the user can continuously adjust the cleaning water spreading angle and cleaning area according to his / her preference.
[0194]
  Command means for instructing an operation of repeating continuous expansion or reduction of the spread angle of the washing water ejected from the ejection means, and the control means is the washing water ejected from the ejection means in response to the command from the instruction means The spread angle may be changed. In this case, the spread angle of the washing water ejected from the ejection means can be continuously expanded or reduced in accordance with a command from the command means. Therefore, the user can repeatedly perform cleaning over a wide range.
[0195]
  The control means may make the reduction speed smaller than the enlargement speed of the cleaning water spread angle. In this case, the spreading angle of the washing water ejected from the ejection means is smaller at the reduction speed than at the enlargement speed. Accordingly, the cleaning water acts so as to remove dirt from the outside to the inside, thereby preventing the dirt from being scattered on the outer periphery of the surface to be cleaned.
[0196]
  The jetting unit may jet the cleaning water in a circular cross section. In this case, the cross section of the washing water ejected from the ejection means is circular. Therefore, the user can clean the surface to be cleaned in a circular shape. As a result, the user can obtain various cleaning feelings according to taste and physical condition.
[0197]
  The jetting unit may jet the cleaning water in an annular cross section. In this case, the cross section of the wash water ejected from the ejection means is annular. Therefore, the user can clean the surface to be cleaned in an annular shape. As a result, the user can obtain various cleaning feelings according to taste and physical condition.
[0198]
  The ejection means includes an ejection hole, a first flow path that guides the cleaning water supplied from the pressurization means to the ejection hole, a second flow path that guides the cleaning water supplied from the pressurization means to the ejection hole, Rotating flow generating means for generating a rotating flow in the wash water of the first flow path, and flow rate adjusting means for adjusting the flow rate of the wash water supplied to the first flow path and the second flow path may be included. .
[0199]
  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 washing water flowing through the first flow path and the second flow path can be changed independently. Furthermore, since a rotating flow of washing water can be generated in the first flow path, a dispersed swirl 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 the linear flow or the distributed swirl flow, or the linear flow and the distributed swirl according to the user's physical condition or preference. A mixed flow with the flow can be ejected. Thereby, the spread angle and the cleaning area of the cleaning water can be changed.
[0200]
  The ejection means has an ejection hole, a flow path for guiding the washing water supplied from the pressurizing means to the ejection hole, and a movable member having a conical outer peripheral surface provided movably in the ejection hole, The control means may include drive 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 becomes a linear flow without being influenced by the movable member. Further, when the movable member is inserted into the ejection hole, the cleaning water is ejected along the outer peripheral surface of the movable member, so that the cross-section becomes a circular dispersed flow. Therefore, the cleaning water spread angle changes depending on the position of the movable member, the density of the cleaning water changes, and a cleaning feeling different from the adjustment of only the flow rate is obtained. As a result, the user can obtain various cleaning feelings and cleaning powers according to taste and physical condition.
[0201]
  The ejection means has an ejection hole, a flow path for guiding the wash water supplied from the pressurizing means to the ejection hole, and a movable member having an inverted frustoconical outer peripheral surface provided movably in the ejection hole. The control means may include drive means for moving the movable member.
[0202]
  In this case, when the inverted frustoconical movable member provided in the ejection hole is taken out from the ejection hole, the washing water becomes a linear flow without being influenced by the movable member. Further, when the movable member is inserted into the ejection hole, the cleaning water is ejected along the outer peripheral surface of the movable member, so that the cross section becomes a dispersed flow having an annular shape. Therefore, the cleaning water spread angle changes depending on the position of the movable member, the density of the cleaning water changes, and a cleaning feeling different from the adjustment of only the flow rate is obtained. As a result, the user can obtain various cleaning feelings and cleaning powers according to taste and physical condition.
[0203]
  The pressurizing means may include a reciprocating pump having a pressurizing member that performs a reciprocating motion. In this case, the washing water intermittently pressurized by the reciprocating pump can be ejected from the ejection holes. Therefore, a high cleaning feeling and cleaning power can be given to the human body even with a small amount of cleaning water.
[0204]
  Pressure variation setting means for setting the pressure fluctuation mode of the washing water may be further provided, 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 pressure fluctuation refers to the period (frequency) of pressure fluctuation, the pressure fluctuation width, and the center pressure.
[0205]
  In this case, the mode of the pressure fluctuation of the washing water ejected from the ejection means can be adjusted based on the setting of the pressure setting means. Therefore, the user can obtain various cleaning feelings and cleaning powers according to physical condition and preference.
[0206]
  The pressure fluctuation setting means may include a switch that changes the pressure fluctuation mode stepwise. In this case, the pressure fluctuation mode 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 cleaning feelings and cleaning powers according to physical condition and preference.
[0207]
  The pressure fluctuation setting means may include a switch that continuously changes the mode of pressure fluctuation. In this case, it is possible to continuously control the pressure fluctuation mode of the cleaning water based on the setting of the pressure fluctuation setting means. Therefore, the user can easily adjust various feelings of washing according to physical condition and preference.
[0208]
  The control means may continuously increase or decrease at least one of the pressure fluctuation cycle, fluctuation width, and central pressure of the wash water ejected from the ejection means based on the setting of the pressure fluctuation setting means. In this case, based on the setting of the pressure fluctuation setting means, at least one of the pressure fluctuation cycle, fluctuation width, and center pressure of the wash water ejected from the ejection means can be continuously increased or decreased. Therefore, the user can obtain various feelings of washing according to physical condition and preference.
[0209]
  Command means for instructing an operation of repeating at least one continuous increase or decrease in the pressure fluctuation period, fluctuation range, and center pressure of the wash water ejected from the ejection means is further provided, and the control means is responsive to the command means. The pressure fluctuation of the washing water ejected from the ejection means may be controlled. In this case, the operation of continuously increasing and decreasing at least one of the pressure fluctuation cycle, fluctuation width, and central pressure of the washing water ejected from the ejection means can be repeated based on the command from the command means. Therefore, the user can cleanse and relax the skin.
[0210]
  The jetting unit may include a human body cleaning nozzle device that jets cleaning water to the human body. In this case, the cleaning area of the local part of the human body can be changed.
[0211]
  The ejection means may include a toilet cleaning nozzle device that ejects cleaning water to the toilet. In this case, the cleaning area of the toilet bowl can be changed. Therefore, the toilet bowl can be effectively cleaned.
[0212]
  The control unit may include an electric drive unit that controls a spread angle of the cleaning water ejected from the ejection unit. In this case, the spread angle of the washing water ejected from the ejection means can be adjusted by the electric drive unit. Therefore, the user can change the spread angle of the washing water ejected from the ejection means by remote operation or automatically.
[0213]
  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 selectively switch the nozzle device that supplies the cleaning water at the same time as adjusting the spread angle of the cleaning water ejected from the ejection means. Therefore, it is not necessary to provide a plurality of electric drive units, and space saving can be realized.
[0214]
  You may further provide the heating means which heats the wash water supplied from the water supply source, and supplies it to a pressurization means. In this case, the wash water supplied from the water supply source can be heated by the heating means and supplied to the pressurizing means. Therefore, it is possible to eject the wash water heated moderately from the ejection holes of the ejection means.
[0215]
  The heating means may be an instantaneous heating device that heats the cleaning water supplied from the water supply source while flowing it. In this case, the cleaning water is instantaneously heated while flowing by the instantaneous heating device. Accordingly, since the cleaning water is heated only when the sanitary cleaning device is used, power consumption can be minimized. Further, since a water storage tank for storing washing water is unnecessary, space saving can be realized. Furthermore, even when the cleaning time is increased, the temperature of the cleaning water does not decrease.
[0216]
【The invention's effect】
  In the sanitary washing apparatus according to the present invention, the wash water supplied from the water supply source is pressurized while being periodically subjected to pressure fluctuations by the pressurizing means. Therefore, the cleaning stimulation effect is enhanced even with a small flow rate.
[0217]
  Further, the wash water ejected from the ejection means is ejected toward the human body with the spread angle controlled by the spread angle control means. Therefore, the user can not only adjust the flow rate but also obtain various cleaning feelings and cleaning powers according to taste and physical condition.
[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 the configuration of the main body of the sanitary washing device according to the first embodiment.
FIG. 4 is a partially cutaway cross-sectional view showing an example of the structure of a 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 diagram for explaining the operation of the umbrella packing.
7 is a graph showing a change in pressure of the pump of FIG.
FIG. 8 is a diagram showing a change in pump pressure due to a difference in water flow 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. It is B line sectional drawing, (d) is CC line sectional drawing of the switching valve of (a).
10 is a cross-sectional view showing the operation of the switching valve of FIG. 9;
11 shows a flow rate of cleaning water flowing out from the cleaning water outlet of the switching valve of FIG. 10 to the butt nozzle, a flow rate of cleaning water flowing out from the cleaning water outlet to the bidet nozzle, and cleaning water flowing out from the cleaning water outlet to the nozzle cleaning nozzle. Figure showing flow rate
12 is a schematic cross-sectional view of the nozzle portion and the switching valve in FIG. 3;
13 is a cross-sectional view for explaining the operation of the buttocks nozzle in FIG. 12;
14 is a cross-sectional view for explaining the operation of the bidet nozzle of FIG.
15 is a schematic diagram of the tip of the piston portion of the buttocks nozzle of FIG.
FIG. 16 is an explanatory diagram of the relationship between the rotation angle of the switching valve, the driving state of the pump, and the nozzle that ejects 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 control device
FIG. 18 is a schematic diagram showing a change in the ejection form of the washing water ejected from the butt nozzle.
FIG. 19 is a diagram showing the strength of washing sensation with respect to the washing area when the flow rate of washing water is constant.
FIG. 20 is a schematic diagram showing the configuration of the main body of the sanitary washing device according to the second embodiment.
21A is a longitudinal sectional view of the switching valve, FIG. 21B is a sectional view taken along the line AA of the switching valve, and FIG. 21C is a sectional view taken along the line BB of the switching valve.
22 is a cross-sectional view showing the operation of the switching valve of FIG. 21.
23 is a cross-sectional view of the bottom nozzle of the nozzle part of FIG.
24 is a cross-sectional view for explaining the operation of the buttocks nozzle in FIG. 20;
FIG. 25 is a schematic diagram for explaining the wash water ejected from the ejection hole of the buttocks nozzle according to the second embodiment.
FIG. 26 is a view showing another example of the ejection form adjusting piece provided on the buttocks nozzle according to the second embodiment.
FIG. 27 is a schematic diagram showing a configuration of a main body of a sanitary washing device according to a third embodiment.
FIG. 28 is a schematic diagram for explaining how cleaning water is ejected from a toilet cleaning nozzle.
[Explanation of symbols]
  1 Wet nozzle
  2 Bide nozzle
  4 Control unit
  11 Heat exchanger
  13 Pump
  14,15 Switching valve
  25 Spout hole
  29 Cylindrical vortex chamber
  29a jetOutShape adjustment piece
  29b Spring
  29c wire
  30 Nozzle part
  130,141 motor
  139 Cylindrical space
  139a, 139b Pump chamber
  200 Body
  201 Water pipe
  300 Remote control device
  302 Adjustment switch
  302a, 302b, 302c Water adjustment switch
  302d, 302e, 302f Cleaning area adjustment switch
  303 Area change switch
  304 Water change switch
  505 Ceramic heater

Claims (11)

A sanitary washing device that jets wash water supplied from a water supply source to a human body,
A jetting means for jetting washing water and changing a spreading angle of the washing water jetted;
Pressurizing means for pressurizing the wash water and spraying it from the ejection means while giving periodic pressure fluctuations to the wash water supplied from the water supply source;
Control means for controlling the spread angle of the wash water ejected from the ejection means,
The pressurizing means is a double-acting reciprocating pump ,
Wherein, the sanitary washing device according to claim reduced to Rukoto a reduced rate than expansion rate of the washing water spread angle A spread angle setting means for setting a spread angle of the washing water ejected from the ejection means,
The spread angle setting means includes:
2. A sanitary washing apparatus according to claim 1, further comprising a switch capable of changing the spread angle of the washing water stepwise. Further comprising command means for commanding an operation of repeating continuous expansion or reduction of the spread angle of the washing water ejected from the ejection means,
The sanitary washing apparatus according to claim 1 or 2, wherein the control means changes a spread angle of the wash water ejected from the ejection means in response to an instruction of the instruction means. The ejection means is
The sanitary washing device according to any one of claims 1 to 3 , wherein the washing water is ejected in a circular cross section. The ejection means is
The sanitary washing device according to any one of claims 1 to 3 , wherein the washing water is ejected in an annular cross section. The ejection means is
A spout hole,
A first flow path for guiding the wash water supplied from the pressurizing means to the ejection hole;
A second flow path for guiding the wash water supplied from the pressurizing means to the ejection hole;
A 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 4 , further comprising a flow rate adjusting means for adjusting a flow rate of the cleaning water supplied to the first flow channel and the second flow channel. The ejection means is
A spout hole,
A flow path for guiding the wash water supplied from the pressurizing means to the ejection holes;
A movable member having a conical outer peripheral surface provided movably in the ejection hole,
5. The sanitary washing apparatus according to claim 4 , wherein the control means includes drive means for moving the movable member. The ejection means is
A spout hole,
A flow path for guiding the wash water supplied from the pressurizing means to the ejection holes;
A movable member having an inverted frustoconical outer peripheral surface provided movably in the ejection hole;
6. The sanitary washing device according to claim 5 , wherein the control means includes drive means for moving the movable member. The ejection means is
The sanitary washing device according to any one of claims 1 to 8 , further comprising a human body washing nozzle device for ejecting washing water to the human body. The ejection means is
The sanitary washing device according to any one of claims 1 to 9 , further comprising a toilet flushing nozzle device for ejecting flush water to the toilet bowl. The control means includes
The sanitary washing apparatus according to any one of claims 1 to 10 , further comprising an electric drive unit that controls a spread angle of the washing water ejected from the ejection means.

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