JP2009228359A - Sanitary washing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary washing apparatus having a drying function that can efficiently dry a dried surface in a short time without giving a feeling of cold air to a user. <P>SOLUTION: First drying of blasting warm air to the dried surface while inducing the warm air by pressurized air, second drying of blasting only the pressurized air, and third drying of blowing only the warm air are provided, and three modes are combined to perform operation, thereby attaining efficient drying according to a service condition. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sanitary washing apparatus having a drying function for drying a surface wetted with air and warm air.

  Various functions have been devised in a sanitary washing apparatus for washing a local part of a human body in order to realize washing according to user's preference. The user performed local cleaning using a sanitary cleaning device using various functions, and removed water droplets adhering to the local area using paper such as toilet paper. However, in recent years, a drying apparatus has been proposed as an alternative to paper such as toilet paper (see, for example, Patent Document 1). FIG. 12 is a schematic plan view showing an example of a sanitary washing apparatus provided with a conventional drying apparatus. FIG. 13 is a schematic sectional side view of this conventional sanitary washing apparatus.

  As shown in FIGS. 12 and 13, the sanitary washing device is configured such that the toilet seat 2, the toilet lid 3, and the body cases 4 and 9 of the sanitary washing device include a water washing tank (low tank). Yes.

  The main body case 4 includes a hot air outlet 7 for blowing out hot air from the hot air blowing device 5, a washing water injection nozzle 8 for injecting hot water to the human body part, and a washing for supplying hot water to the washing water injection nozzle 8. A water supply pump 11 and a hot water tank 12, a high-pressure air reservoir 14 that stores air compressed by the air compressor 13, and an electromagnetic valve 15 that opens and closes the outlet of the high-pressure air reservoir 14 are incorporated.

  The toilet seat 2 has a cavity 16 provided therein and an air ejection nozzle 18 composed of a plurality of holes for ejecting air in the cavity 16, and the electromagnetic valve 15 and the cavity 16 are connected by a high-pressure hose 17. .

When the human body 10 sits on the toilet seat 2 and performs the washing operation after the toilet, the washing water supply pump 11 is operated, and hot water is jetted from the washing water jet nozzle 8 through the hot water tank 12 to the surface to be washed. Clean the cleaning surface. The air compressor 13 is operated by a drying operation after cleaning, and high-pressure air is ejected to the surface to be cleaned through the high-pressure air reservoir 14, the solenoid valve 15, the high-pressure hose 17, the cavity 16 and the air ejection nozzle 18, and adheres to the surface to be cleaned. Blow water droplets to scatter or diffuse. Next, the hot air blowing device 5 is operated, hot air is blown from the hot air outlet 7 through the air passage 6 to the surface to be cleaned, and the surface to be cleaned is dried.
JP-A-58-218531

  In the conventional configuration, the compressed air in the high-pressure air reservoir 14 is released from the air jet nozzle 18 to blow off water droplets on the surface to be cleaned in a short time.

  However, once the air is once stored from the air compressor 13 into the high-pressure air reservoir 14 as in the conventional example, the air heated at the time of pressurization is cooled by the heat radiation from the high-pressure air reservoir 14, and the compressed air is discharged from the air ejection nozzle. When opening from 18, air is deprived of heat by expansion, giving the user a feeling of extreme cold wind. Furthermore, since the water droplets adhering to the human body part evaporate, the coldness is felt by the latent heat.

  When compressed air is sprayed onto a wet human body part in this way, a cold wind feeling unbearable to the user has been given, particularly in winter.

  As a method for solving these problems, there is a method in which hot air is blown out while jetting compressed air to the surface to be cleaned. However, simply operating both simultaneously causes the hot air to heat up or cause temperature unevenness. Or could not cope with individual differences in temperature sensation and cold sensation.

  The objective of this invention is providing the sanitary washing apparatus provided with the drying function which can dry a to-be-dried surface efficiently in a short time, without giving a feeling of cold wind to a user.

  The sanitary washing apparatus according to the present invention has a drying function for drying a surface to be dried with a jet of pressurized air and hot air, and jets a jet of hot air and pressurized air onto the surface to be dried. The first drying, the second drying in which only pressurized air is sprayed onto the surface to be dried, and the third drying in which only hot air is blown onto the surface to be dried. Drying is possible.

  According to the present invention, since the drying conditions can be selected, the surface to be dried can be efficiently dried in a short time without giving the user a feeling of cold air.

  1st invention is a toilet seat part which a user can sit down, washing water jetting means which jets washing water to a user's local part, and air jet which jets pressurized air to a to-be-dried surface around a user's local part And a sanitary washing apparatus comprising a heating means for blowing warm air to the surface to be dried, wherein the air jetting means and the heating means are simultaneously driven to dry a mixed jet of pressurized air and warm air to be dried The first drying sprayed onto the surface, the second drying for driving only the air jetting means, and the third drying for driving only the heating means.

  This is because when pressurized air is sprayed onto a wet surface to be dried and water droplets are blown off, for example, in a low temperature situation such as in winter, hot air is attracted by the pressurized air and mixed and sprayed onto the surface to be dried. In the first drying, water droplets are removed without giving the user a feeling of cold air. Moreover, in a high temperature situation such as summer, water droplets are comfortably removed using second drying in which only pressurized air is jetted onto the surface to be dried. Further, in a situation where it is not desired to apply pressurized air, third drying is used in which only warm air is blown to the surface to be dried.

  In this way, drying according to the use situation and the user's preference is possible without giving the user a cool air feeling.

  In particular, the second invention includes a preheating step in which warm air is blown in advance before the pressurized air is jetted onto the surface to be dried in the first drying of the first invention. Thereby, since the warm air temperature attracted by the pressurized air when the first drying operation is started is preliminarily warmed, water droplets on the surface to be dried can be formed without giving the user a feeling of cold air from the beginning of use. It can be removed efficiently.

  In particular, the third invention has a plurality of drying operation modes by a combination of the first to third drying methods of the first invention.

  Thereby, for example, the following operation modes can be considered.

  "Short-time drying mode" Only the first drying is operated.

  “Solid drying mode” Third drying operation after the first drying operation.

  "Summer season drying mode" Only the second drying operation.

  “Hot air mode” 3rd drying only.

  In this way, the operation mode can be set according to the user's usage and preferences.

  In particular, the fourth invention has a mode in which the drying operation mode of the third invention has a mode in which the first drying is performed for a predetermined time and the second drying is performed in a predetermined time for a predetermined time. It is possible to reliably dry in a short time without giving the user a feeling of cold air.

  In addition, since the first drying operation uses pressurized air, the operation noise is large and the life of the pressurizing means such as a pump for pressurizing the air is limited. By combining the first drying and the third drying as in the present invention, the operation time of the first drying can be minimized to remove water droplets, and the surface to be dried can be finished with the third drying. .

  In the fifth aspect of the invention, in particular, the hot air blowing condition in the first drying and the hot air blowing condition in the third drying of any one of the first to fourth inventions are changed. This is because the warm air in the first drying is changed to increase the warm air temperature because the temperature of the warm air decreases due to the attraction of compressed air. As the means, the heat generation amount is increased or the air amount is decreased. Or both. There is also a method to increase the heat generation more than that while actively increasing the air volume.

  This not only prevents the user from feeling cold but also promotes drying.

  In the sixth invention, in particular, in the pressurized air injection operation of any one of the first to fifth inventions, a step of collecting water droplets adhering to the surface to be dried by the jet at the center of the surface to be dried, A step of blowing off the water droplets. Thereby, a water droplet can be efficiently removed, without adhering water droplet scattering by pressurized air. In addition, since efficient water droplet removal is possible, the drying apparatus can be reduced in size.

  Hereinafter, the present embodiment will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 is an external perspective view showing a sanitary washing device and a toilet device comprising the same according to an embodiment of the present invention. The toilet apparatus 1000 is installed in a toilet room.

  In the toilet apparatus 1000, the sanitary washing apparatus 100 is attached to the toilet bowl 600. The sanitary washing device 100 includes a main body 200, a remote operation device 300, a toilet seat 400 and a lid 500.

  A toilet seat 400 and a lid 500 are attached to the main body 200 so as to be openable and closable. Further, the main body 200 is provided with a drying device 50 including a drying nozzle 20 that is an air jetting means, a washing water jetting means 30 for jetting washing water, and a heating means 40, and a built-in control part. Has been.

In FIG. 1, a seating sensor 610 provided in the upper front portion of the main body 200 is shown. The seating sensor 610 is, for example, a reflective infrared sensor. In this case, the seating sensor 610 detects the presence of a user on the toilet seat 400 by detecting infrared rays reflected from the human body.

  The entrance detection sensor 700 is attached to an entrance of a toilet room or the like. The entrance detection sensor 700 is, for example, a reflective infrared sensor. In this case, the room entry detection sensor 700 detects that the user has entered the toilet room when infrared rays reflected from the human body are detected.

  The control unit of the main body unit 200 controls the operation of each unit of the sanitary washing device 100 based on signals transmitted from the remote operation device 300, the room entry detection sensor 700, and the seating sensor 610.

  The air ejecting means 50 is an air pump 51 that supplies pressurized air, a drying nozzle 20 that injects this pressurized air, and a drying unit for moving the jet of pressurized air ejected from the drying nozzle 20 back and forth and left and right. The compressed air jetted from the air jetting means 50 has a capability of a wind speed reaching the surface to be dried of 20 to 30 m / s, and is jetted on the surface to be dried. The abutment range is about 1 cm in diameter.

  The drying nozzle 20 is integrally formed with a cleaning nozzle portion 33 of the cleaning water ejection means 30.

  The washing water injection means 30 includes an opening / closing valve for opening and closing the supply of tap water in addition to the washing nozzle section 33, a hot water heating means 31 for heating the tap water, and the hot water from the hot water heating means 31 in the direction of the washing nozzle section 33. The switching valve 32 that switches the flow path to the internal direction of the toilet 600 is configured, and the driving means 52 is shared with the drying nozzle 20.

  The heating means 40 includes an air fan 41 that blows air to a built-in heater and supplies hot air, and a duct 43 that guides the hot air to the hot air outlet 42. The wind is slower than the flow velocity of the pressurized air ejected from the air ejecting means 50 and is 10 m / second or less, and the contact area with the surface to be dried is wide and diffuses over substantially the entire surface to be dried.

  FIG. 2 is a front view of the remote control device 300 of FIG. The remote operation device 300 has a structure in which a controller lid 302 is provided at the bottom of the controller main body 301 so as to be freely opened and closed.

  As shown in FIG. 2A, with the controller lid 302 closed, drying mode selection switches 320a, 320b, and 320c, strength adjustment switches 322 and 323, and position adjustment switches are provided above the controller main body 301. 325 and 326 are provided, and the controller lid 302 is provided with a stop switch 311, a drying switch 314, a butt switch 312 and a bidet switch 313.

  The above switches are operated by the user. Thereby, a predetermined signal corresponding to each switch is wirelessly transmitted from the remote operation device 300 to the main body 200 of FIG. The control unit 150 (FIGS. 3 and 4) of the main body 200 controls the operation of each component of the main body 200 (FIG. 1) and the toilet seat 400 (FIG. 1) based on the received signal.

  For example, when the user operates the buttocks switch 312 or the bidet switch 313, cleaning water is ejected from a nozzle unit 20 (FIG. 3), which will be described later, to the user's local area. Further, when the user operates the stop switch 311, the ejection of the washing water from the nozzle unit 20 to the user's local part is stopped.

When the user operates the drying switch 314, pressurized air is ejected from the air ejection means 50 (FIG. 4), which will be described later, onto the surface to be dried of the user's local area, and at the same time, the temperature from the heating means 40 (FIG. 4). The wind is blown out. In addition, when the user selects and operates the drying mode switches 320a, 320b, and 320c, the condition for blowing the dry air that is jetted to the above-mentioned local area of the user is changed, and can be arbitrarily selected according to the use situation and the user's preference. It is possible to do. The drying mode switch 320a is a “rapid drying operation” when it is desired to finish drying in a short time, the drying mode switch 320b is a “steady drying operation” that reliably dries and finishes the local area, and the drying mode switch 320c supplies pressurized air. If you don't want to hit it, you can select “warm air drying operation” to blow out only warm air.

  Further, when the user operates the strength adjustment switches 322 and 323, the flow rate, pressure, and the like of the cleaning water sprayed to the local area of the user are adjusted.

  Further, when the user operates the position adjustment switches 325 and 326, the position of a cleaning nozzle 33 (FIG. 3) described later is adjusted. Thereby, the ejection position of the washing water to the user's local area is adjusted.

  FIG. 2B shows a front view of the remote operation device 300 in a state where the controller lid 302 is opened. As shown in FIG. 2B, in addition to the stop switch 311, the drying switch 314, the butt switch 312 and the bidet switch 313, an automatic opening / closing switch is provided below the controller main body 301 covered with the controller lid 302. 331, a hot air temperature adjustment switch 340, a water temperature adjustment switch 332, a toilet seat temperature adjustment switch 333, a sterilization switch 335, and a toilet bowl washing switch 336 are provided.

  Even when these switches are operated, a predetermined signal corresponding to each switch is wirelessly transmitted from the remote operation device 300 to the main body 200. Thereby, the control part 90 of the main-body part 200 controls operation | movement of each structure part of the main-body part 200 and the toilet seat part 400 based on the received signal.

  The automatic opening / closing switch 331 is constituted by a knob. When the user operates the knob of the automatic opening / closing switch 331, the opening / closing operation of the lid 500 (FIG. 1) is set. That is, when the knob of the automatic opening / closing switch 331 is in the on position, the lid 500 is opened / closed in response to the user entering the toilet room.

  When the user operates the hot air temperature adjustment switch 340, the temperature of the hot air blown from the heating means 40 to the user's local area is adjusted. Each time the hot air temperature adjustment switch 340 is pressed, the setting is switched between “high”, “medium”, “low”, and “off”. When operating with this “off” setting, the heater 43 (FIG. 4) is turned off and only air is blown.

  Further, when the user operates the water temperature adjustment switch 332, the temperature of the cleaning water ejected from the nozzle unit 20 to the user's local area is adjusted. When the user operates the toilet seat temperature adjustment switch 333, the temperature of the toilet seat 400 is adjusted.

  Next, the cleaning water ejection means 30 provided in the main body 200 will be described. FIG. 3 is a block diagram showing the configuration of the washing water jetting means 30 and the control unit 150.

  3 includes an on-off valve 34, a hot water heating means 31, a switching valve 32, a cleaning nozzle section 33, a driving means 52, a front / rear driving motor 53, a left / right driving motor 54, and a control section 150.

The controller 150 of the washing water ejection means 30 includes an on-off valve 34, a hot water heating means 31, a switching valve 32,
The operation of the front / rear drive motor 53 and the left / right drive motor 54 is controlled.

  Next, the drying function provided in the main body 200 will be described. FIG. 4 is a block diagram showing the configuration of the air ejection means 50, the heating means 40, and the control unit 150 in the drying function.

4 includes a drying nozzle 20, an air pump 51, a driving unit 52, a front / rear driving motor 53, and a left / right driving motor 54. The heating means 40 includes an air fan 41, a heater 43, and a hot air jet outlet 42. The drive means 52 and the front / rear drive motor 53
The left / right drive motor 54 and the controller 150 are shared with the washing water jetting means 30 described above.

  The drying function control unit 150 controls operations of the air pump 51, the front / rear drive motor 53, the left / right drive motor 54, the air fan 41, and the heater 43. And this drying function drives the heating means 40 and the air injection means 50 at the same time, mixes the hot air blown by the heating means 40 while being attracted by the pressurized air injected by the air injection means 50. A first drying operation for injecting onto the surface to be dried, a second drying operation for driving only the air injection means 50 to inject only the pressurized air onto the surface to be dried, and a hot air by driving only the heating means 40 It has three operation patterns of the third drying operation that blows out on the surface to be dried.

  When the drying mode switch 320a “rapid drying operation” of the remote control device 300 in FIG. 2 is selected, the drying is finished in a short time by operating the first drying operation for a predetermined time. When the dry mode switch 320b “solid dry operation” is selected, the first drying operation is operated longer than the rapid drying operation to reliably remove water droplets on the surface to be dried, and then the third drying operation. The surface to be dried is dried by switching to warm air. When the drying mode switch 320c “warm air drying operation” is selected, the third drying operation is performed.

  When the hot air temperature control switch of the remote control device 300 in FIG. 2 is set to “OFF” and “rapid drying operation” is selected, only the pressurized air is jetted onto the surface to be dried by the second drying operation. I am doing so. In this case, it can be selected particularly when the temperature is high, such as in summer.

  FIG. 5 is a perspective view showing the configuration of the driving means 52 in the air ejection means 50.

  The driving means 52 shown in FIG. 5 includes a drying nozzle 20, a rocking means 70 that rocks the air jet from the drying nozzle 20 in the left-right direction, an advancing / retreating driving means 71 that reciprocates the air jet in the front-rear direction, and a base The driving means 52 can arbitrarily move the contact range of the pressurized air sprayed from the drying nozzle 20 with respect to the surface to be dried over the entire surface to be dried as the moving means of the present invention. it can.

  The drying nozzle 20 has a cylindrical shape, and is provided with an air nozzle hole 21 and a washing water nozzle hole 22 in the cylindrical circumferential direction near the tip, and an air cavity 23 that guides pressurized air to the air nozzle hole 21 and washing water. A water cavity 24 leading to the cleaning water nozzle hole 22 is provided. That is, the drying nozzle 20 is configured also as the cleaning nozzle portion 33.

  The pressurized air from the air pump 51 is connected to be supplied from the air tube 25 to the air cavity 23, and the wash water from the switching valve 32 is connected to be supplied from the water tube 26 to the water cavity 24. ing. The air tube 25 and the water tube 26 are made of a soft material such as rubber because a twisting or bending force acts when the drying nozzle 20 rotates or drives back and forth.

  The base 55 is disposed by inclining the drying nozzle 20 along a rail portion 56 that is inclined forward on the upper surface, and is held through the drying nozzle 20 in a guide portion 57 that is formed by opening a hole at the tip of the base. The guide portion 57 is made of a material having good slidability, and is provided with an appropriate clearance so that the drying nozzle 20 rotates and slides smoothly. Further, a slider 58 that slides along the rail portion 56 is provided on the upper surface of the base 55, and the terminal end of the drying nozzle 20 is rotatably held. The drying nozzle 20 is driven along the rail portion 56 in accordance with the operation of the slider 58.

  The advancing / retreating drive means 71 is composed of a front / rear drive motor 53, a slider 58 and a screw part 59. The front / rear drive motor 53 is arranged at the rear part of the base 55, and the screw part 59 arranged parallel to the rail part 56 is forward / reverse. Connected to rotate. The screw portion 59 is set on the nut portion 60 of the slider 58, and the slider 58 drives on the rail portion 59 as the screw portion 59 rotates. Accordingly, the drying nozzle 20 held by the slider 58 is driven back and forth in accordance with the rotation of the front / rear drive motor 53. Here, the forward direction represents the A direction in FIG. 5, the rear direction represents the B direction, the front direction corresponds to the front direction of the user seated on the toilet seat 400, and the rear direction is the passenger. Corresponds to the back direction.

  The swinging means 70 includes a left / right drive motor 54, a gear A61, a gear B62, and a gear C63 arranged on the slider 58, and transmits the rotation of the left / right drive motor 54 to the drying nozzle 20 via the gear A61, the gear B62, and the gear C63. . Accordingly, the drying nozzle 20 rotates in accordance with the forward / reverse rotation of the left / right drive motor 54, and the air jet ejected from the air nozzle hole 21 swings in the right / left direction of C and D in FIG.

  Hereinafter, the control operation in the control unit 150 will be described with reference to FIGS. 6, 7, 8, and 9. FIG. 6 is a time chart of control operations in the “wet washing” and “drying” operations by the control unit 150, and FIG. 7 is a schematic cross-sectional view of the “wet washing” and “drying” operation states. FIGS. 8 and 9 are schematic diagrams showing the movement pattern of the jet contact area E on the surface to be dried in the “dry” operation state. Note that the “drying” operation mode shown in FIG. 6 is “rapid drying operation” in a state where the drying mode switch 320a in FIG. 2 is selected, and the hot air temperature adjustment switch 340 is set to “medium”. It is. This “rapid drying operation” is a first drying operation in which hot air in the drying function is attracted by pressurized air and sprayed onto the surface to be dried.

  As shown in FIG. 6, at the time T0 when the operation is not yet performed, the front-rear direction of the drying nozzle 20 (cleaning nozzle portion 33) is disposed at the rear end storage position. The horizontal direction of the drying nozzle 20 is set at an angle to a detection position of a position sensor (not shown) that detects the center position provided on the swinging means 70. This angle becomes the central angle, and the jet angle of the air nozzle hole 21 and the washing water nozzle hole 22 is set upward.

  At T1 when the user depresses the butt switch 312 of the remote control device 300, the on-off valve 34 opens and tap water flows into the hot water heating means 31, and when a built-in flow sensor (not shown) detects the water flow, The energization of the heating means 31 is started, and the heated hot water starts to be supplied. At this time, since the switching valve 32 is set in the flow path on the toilet bowl side, hot water that is not sufficiently warmed is discharged into the toilet bowl 600.

At the time T2 when the temperature of the hot water from the hot water heating means 31 reaches a predetermined temperature (for example, 36 ° C.), the front and rear drive motor 53 is operated to advance the cleaning nozzle 33 to the center position (for example, 100 mm forward). At T3, the switching water 32 switches the cleaning water to the cleaning nozzle 33 side, and the cleaning water is jetted onto the surface to be cleaned of the user. Electric power control to the hot water heating means 31 is performed using known PID or FF control so that the temperature detected by a temperature sensor (not shown) for detecting the temperature of the hot water becomes a set temperature (for example, 40 ° C.). The flow rate of the washing water is set to a user's favorite amount by adjusting the valve opening degree of the switching valve 32. As shown in FIG. 7 (a), the wet state of the surface to be cleaned in this butt cleaning is not only the central portion where the cleaning water directly hits but also the water droplets flow to wet the peripheral portion.

  At T4 in FIG. 6 in which the butt washing is completed and the user presses down the stop switch 311 of the remote control device 300, the washing water is switched to the toilet 600 side by the switching valve 32, and the washing water is ejected from the washing nozzle portion 33. Simultaneously with the stop, the energization to the hot water heating means 31 is stopped, the front and rear drive motor 53 is reversed, and the washing nozzle portion 33 is moved back to the storage position. Then, at T5, the on-off valve 34 is closed to shut off the water flow, and the cleaning operation is finished.

  In the present embodiment, the operation in the buttocks cleaning has been described, but the basic case is the same when the bidet cleaning for pressing the bidet switch 313 of the remote operation device 300 is pressed. However, in the case of bidet cleaning, the cleaning nozzle position and flow rate setting corresponding to the bidet are changed.

  Next, when the user depresses the drying switch 314 of the remote control device 300 at T6, the air fan 41 and the heater 43 are operated to start control for blowing hot air from the hot air outlet 42. The hot air temperature blown out is controlled to an appropriate temperature by feedback-controlling the energization amount to the heater 43. And it blows with respect to the substantially whole surface of the to-be-dried surface which is a user's washing | cleaning surface from the warm air jet nozzle 42. FIG.

  At the same time, the air pump 51 is operated for a short time (for example, 1 second), and pressurized air is ejected from the air nozzle hole 21 of the drying nozzle 20 for a moment. This operation prevents the reattachment of water droplets to the user by blowing off water droplets adhering to the surface of the drying nozzle 20 in a state where the drying nozzle 20 is in the storage position.

  Thereafter, the front-rear drive motor 53 is operated to advance the drying nozzle 20 to the most advanced position (for example, 150 mm forward), while the left-right drive motor 54 is operated to adjust the left-right angle of the drying nozzle 20 to the right end angle (for example + 50 °). Change the angle.

  At T7, the operation of the air pump 51 is started, and the injection of pressurized air from the air nozzle hole 21 to the surface to be dried is started.

  In the first step from T7 to T8, the operation direction and operation speed of the left and right drive motors 54 and the front and rear drive motors 53 of the drive means 52 are controlled, so that the front and rear drive of the drying nozzle 20 is within a predetermined range (for example, 50 mm to 150 mm forward). And at the same time, the drying nozzle 20 is slowly driven from the right end angle toward the center angle from the right end angle to a predetermined angle on the right side (for example, + 50 ° to + 20 °). In the operation of the first step, the air jet from the drying nozzle 20 gradually approaches the center while moving at a high speed in the front-rear direction from a predetermined position on the right side of the surface to be dried of the user. Therefore, as shown in the operation pattern P1 of FIG. 8, the air jet contact area E gradually moves toward the center G while periodically moving at high speed in the tangential direction of the right end of the surface F to be dried. Therefore, the zigzag movement trajectory is drawn as shown in the figure. As a result, as shown in FIG. 7B, water droplets spreading and adhering to the right side of the surface to be dried can be blown away while being collected in the central portion direction.

  At T8 in FIG. 6, the air pump 51 is temporarily stopped, and the left-right angle of the drying nozzle 20 is changed to the left end angle (for example, −50 °). At T9, the operation of the air pump 51 is resumed and injection of pressurized air is started.

Then, in the second step from T9 to T10, the back-and-forth drive of the drying nozzle 20 is reciprocated at a high speed within a predetermined range (for example, 50 mm to 150 mm forward) as in the first step, and at the same time the left and right angles of the drying nozzle 20 are set to the left end. Drive slowly from the angle toward the center angle from the left to a predetermined angle (eg, -50 ° to -20 °). The operation of this second step is that the air jet from the drying nozzle 20 gradually moves toward the center while moving periodically from the predetermined distance on the left side of the user's surface to be dried in the front-rear direction. Come on. Therefore, as shown in the operation pattern P2 in FIG. 8, the contact area E of the air jet gradually moves gradually toward the center G while periodically moving in the tangential direction of the left end of the surface F to be dried. Therefore, a zigzag movement trajectory is drawn as shown in the figure. As a result, as shown in FIG. 7C, water droplets spreading and adhering to the left side of the surface to be dried can be blown off while being collected in the central portion direction.

  The water droplets adhering to the surface to be cleaned by the first step and the second step described above remain only around the center.

  Since the buttock of the human body is formed with convex portions on both the left and right sides with respect to the washing center of the anus and penis, both the left and right sides are lower than the washing center when sitting on the toilet seat. Therefore, the washing water tends to wet and spread from side to side, and when an air jet is first applied to the center during drying, the attached water droplets spread greatly to the left and right, and the wet area increases. As described above, since the first step and the second step are blown away while preventing water droplets on the surface to be cleaned from spreading to the left and right, efficient drying can be performed.

  At the end time T10 of the second step, the drying nozzle 20 is advanced to the most advanced position. Then, in the third step from T10 to T11, the back-and-forth drive of the drying nozzle 20 is slowly retreated from the most advanced position toward the center, and at the same time, the left-right angle of the drying nozzle 20 is reciprocated at high speed from the right end angle to the left end angle. Let The operation of the third step is that the air jet from the drying nozzle 20 gradually moves closer to the center from the predetermined position in the front to the rear while moving at high speed in the left-right direction on the surface to be dried. come. Therefore, as shown in the operation pattern P3 of FIG. 9, the contact area E of the air jet gradually moves toward the center G while periodically moving in a tangential direction at the tip of the surface F to be dried. Since it moves novelly, a zigzag movement trajectory is drawn as shown in the figure. As a result, water droplets remaining in front of the center portion G of the surface to be dried can be blown away while being collected in the direction of the center portion G.

  At T11, the air pump 51 is temporarily stopped, and the position of the drying nozzle 20 in the front-rear direction is moved to the rear predetermined position (for example, 50 mm forward). At T12, the operation of the air pump 51 is resumed and the injection of pressurized air is started.

  In the fourth step from T12 to T13, the front and rear drive of the drying nozzle 20 is slowly advanced from the rear predetermined position toward the central portion, and at the same time, the left and right angles of the drying nozzle 20 are reciprocated at high speed from the right end angle to the left end angle. . The operation of the fourth step is that the air jet from the drying nozzle 20 gradually moves closer to the center from the predetermined distance to the front while moving at high speed in the horizontal direction on the surface to be dried. come. Therefore, as shown in the operation pattern P4 of FIG. 9, the contact area E of the air jet gradually moves toward the center G while performing periodic movement that reciprocates at high speed in the tangential direction of the rear end of the surface F to be dried. Since it moves gradually, a zigzag movement trajectory is drawn as shown in the figure. As a result, water droplets remaining behind the central portion G of the surface to be dried can be blown away while being collected in the central portion G direction.

  The water droplets remaining on the surface to be dried by the above first to fourth steps are only the central portion.

The action on water droplets adhering to the surface to be dried in the first to fourth steps will be described. Since the driving direction of the air jet to the surface to be dried during the operation of each step is sufficiently faster than the moving speed toward the center, the moving speed in the tangential direction is sufficiently faster with respect to the center. The air flow direction which spreads by colliding with the surface to be dried increases the flow component in the direction perpendicular to the substantially tangential direction. Accordingly, the water droplets adhering between the air jet driven in the substantially tangential direction and the central portion are pushed by the air flow perpendicular to the tangential direction and move in the central portion direction. And since an air jet is gradually approached to a center part, it gathers in the center part direction. By performing this movement from the four directions of right, left, front, and rear in the first to fourth steps, the water droplets gather at the center. Thus, the first to fourth steps are steps for collecting water droplets adhering to the surface to be dried at the center of the surface to be dried.

  At T13, the air pump 51 is stopped again, and the position of the drying nozzle 20 in the front-rear direction is moved to a predetermined front position (for example, 130 mm forward). At T14, the operation of the air pump 51 is restarted and injection of pressurized air is started.

  Then, in the fifth step from T14 to T15, the back-and-forth drive of the drying nozzle 20 starts to retreat from a predetermined position in the front, passes through the central portion, and reaches a predetermined distance behind the central portion (for example, 50 mm forward). Retreat slowly. At the same time, the left and right angles of the drying nozzle 20 are reciprocated at high speed from the right end angle to the left end angle. The operation of the fifth step is that the air jet from the drying nozzle 20 gradually moves backward from a predetermined position in the forward direction while periodically moving in a horizontal direction on the surface to be dried. And then gradually move to a predetermined position behind the center. Therefore, since the position where the air jet strikes the surface to be dried gradually moves from the front through the center and rearward, the water droplets remaining at the center of the surface to be dried can be completely blown away. That is, the fifth step is a process of blowing off the collected water droplets.

  At T15, the air pump 51 is stopped, and the front-rear direction of the drying nozzle 20 is moved to the storage position at the rear end. The horizontal direction of the drying nozzle 20 is returned to the center angle. Further, the operation of the air fan 41 and the heater 43 is stopped, and the hot air is blown out from the hot air outlet 42.

  As described above, in the present embodiment, when the pressurized air from the drying nozzle 20 is sprayed onto the surface to be dried, the warm air is blown from the hot air outlet 42 onto the surface to be dried. Can be attracted to the pressurized air and sprayed while warming the pressurized air, drying more efficiently, and preventing the cold air feeling of the air jet.

  Next, the control operation in the “solid drying operation” in a state where the drying mode switch 320b of FIG. 2 is selected will be described using the time chart of FIG. This “solid drying operation” is a combination of the first drying operation in which hot air in the drying function is attracted to the surface to be dried while being attracted by pressurized air, and the third drying operation in which only the hot air is blown to the surface to be dried. To do.

  The description will be made mainly on points different from the time chart of FIG. 6, and the same operations will be omitted using the same numbers and symbols for the same operations.

  As shown in FIG. 10, when the user depresses the drying switch 314 of the remote control device 300 at T51, the air fan 41 and the heater 43 are operated from T51 to T6, and only the hot air operation is performed from the hot air outlet 42. I do. That is, it becomes a preheating process in which hot air is blown in advance before injecting pressurized air to the surface to be dried, and the temperature of the hot air attracted by the high-pressure air injected from T7 to the surface to be dried sufficiently increases, so that drying starts. Sometimes the user does not feel cold. During this time, about 5 seconds are required. During this time, it is also effective to reduce the air volume of the air fan 41 and increase the temperature of the heater 43 faster.

From T7 to T13, the process of collecting the water droplets adhering to the surface to be dried at the center of the surface to be dried in the first to fourth steps as in FIG. Then, T14 to T18 are steps for blowing off the collected water droplets. However, the difference from FIG. 6 is that the back-and-forth drive is slowly retreated from a predetermined position in the front to a predetermined position in the rear while moving the reciprocating speed of the drying nozzle 20 from the right end angle to the left end angle at a high speed. It is to repeat. That is, the time for the blow-off process is lengthened to reliably remove water droplets remaining on the surface to be dried. During this time, the jet of pressurized air passes through the center of the surface to be dried three times, so that reliable water droplet removal and drying can be promoted.

  At T18, the air pump 51 is stopped, and the front-rear direction of the drying nozzle 20 is moved to the storage position at the rear end. The horizontal direction of the drying nozzle 20 is returned to the center angle. Here, the first drying operation ends.

  Between T18 and T19, the operation is switched to the third drying operation, and only the air fan 41 and the heater 43 are operated. During this time, by blowing warm air over the entire surface to be dried, moisture remaining on the surface evaporates and the skin can be given a feeling of sarat.

  In T19, when the user depresses the stop switch 311 of the remote control device 300, the operation of the air fan 41 and the heater 43 is stopped, and the hot air is blown out from the hot air outlet 42.

  However, the end of drying may be automatically stopped after a predetermined time.

  In addition, the setting of the warm air temperature was the same in the first drying operation and the third drying operation, but in the first drying, the warm air is attracted by the pressurized air and cooled, so the selected temperature is Raising and driving can more effectively prevent the feeling of cold wind and promote drying. In addition, since the moisture content on the surface to be dried decreases with the lapse of the drying time, the cooling action due to latent heat of evaporation on the surface also decreases, so it is desirable to lower the hot air temperature setting during the third drying operation. These hot air temperatures may be set automatically.

  As mentioned above, weir cleaning, bidet and drying are configured with a single nozzle, and the drive means is also shared, so the nozzle installation area can be reduced and the number of parts can be reduced, saving space and reducing costs. Can be realized.

  Further, since the pressurized air for drying is jetted from a single nozzle hole, the flow velocity of the air jet can be increased even at a low flow rate, and high drying performance can be obtained even with a small capacity air pump. That is, since the flow velocity of the jet is large, the energy for peeling off the water droplet when the jet hits the water droplet attached to the surface to be dried increases, so that the water droplet can be efficiently blown off.

  As described above, the air ejection means 50 and the heating means 40 are simultaneously driven, the first drying in which the mixed jet of pressurized air and hot air is jetted onto the surface to be dried, and the second that drives only the air ejection means 50. And the third drying that drives only the heating means 40, it is possible to select drying conditions according to the season and personal preference, and to dry efficiently in a short time without giving the user a feeling of cold air Not only can the surface be dried, but the air velocity reaching the surface of the skin to be dried can be moved in a meandering manner while applying compressed air with a speed of 20 to 30 m / s as narrow and locally as about 1 cm in diameter. Therefore, it is possible to obtain comfort due to the effect of a kind of massage. Moreover, the first drying in which a mixed jet of pressurized air and warm air is jetted onto the surface to be dried, the second drying in which only the air ejection means 50 is driven, and the third drying in which only the heating means 40 is driven. By having a combination, it is possible to select according to personal preference and situation by combination. Therefore, the controller 300 may be provided with a mode switch that is used not only for the purpose of drying but only for a massage effect.

  In the present embodiment, the butt washing and the bidet are performed with the same nozzle hole, but each nozzle hole may be arranged in a single cylinder, and the butt washing and the bidet may be configured respectively. Independent nozzles and driving means may be arranged.

  Further, in this embodiment, cleaning and drying are configured by a single cylinder and the driving means is shared, but these may be configured by independent nozzles and driving means, respectively.

  Furthermore, although the drying nozzle is configured by a single nozzle hole in the present embodiment, a configuration in which pressurized air is ejected by a plurality of nozzle holes may be used, or a plurality of drying nozzles and driving means may be disposed. And it is possible to shorten the drying time by driving the plurality of air jets so as to collect water droplets on the surface to be dried at the center. Further, in this embodiment, the flow rate of the pressurized air is set to 20 to 30 m / s. However, in order to obtain the effect of blowing water droplets, the minimum speed of 10 m / s or more is required, and the size of the jet contact area is set. The size of the nozzle holes and the number of nozzle holes, which are elements, must be selected in consideration of the capacity of the air pump and the flow rate of the pressurized air.

  In the present embodiment, the entire drying nozzle is driven by the driving means as the moving means. However, the present invention is not limited to this, and only the air nozzle hole of the drying nozzle or only the peripheral members including the air nozzle hole is moved or moved. By changing the jet direction of the jet by changing the angle, it may be configured to move the jet contact area, or a configuration in which a wind direction changing means for changing the jet direction in front of the air nozzle is provided.

  Further, in the present embodiment, the first step to the fifth step are sequentially executed, but each step may be repeatedly executed or the order of each step may be changed. Further, the first and second steps may be omitted, and the third and fourth steps may be omitted.

(Embodiment 2)
Next, a sanitary washing device according to a second embodiment of the present invention will be described.

  The sanitary washing apparatus according to the second embodiment differs from the sanitary washing apparatus according to the first embodiment in the following points.

  FIG. 11 is a partial perspective view of the drying nozzle and the swinging means of the air jetting means in the sanitary washing apparatus according to the second embodiment.

  The swinging means 80 shown in FIG. 11 includes a rotating shaft 83 that is integrally connected to the base 82 of the drying nozzle 81, a slider 85 that is rotatably supported around the axis 84 of the rotating shaft 83, and a rotation A left and right drive motor 86 that rotates the shaft portion 83 and a gear A87 and a gear B88 that transmit the rotational force of the left and right drive motor 86 to the rotation shaft portion 83 are included.

  The longitudinal drive function by the slider 85 is the same as that of the first embodiment, and the nut portion 60 is also configured in the same manner.

  The internal configuration of the drying nozzle 81 is cylindrical as in the first embodiment, and the air nozzle hole 21 and the washing water nozzle hole 22 are provided in the cylindrical circumferential direction near the tip, and the inside for the pressurized air is used. An air cavity (not shown) and a water cavity (not shown) for cleaning water are provided. The difference from the first embodiment is that the base 82 of the drying nozzle 81 is integrally connected to the rotating shaft 83 and the drying nozzle 81 reciprocates in a fan shape around the rotating shaft 83. .

In the above configuration, the air jet is driven left and right by controlling the forward / reverse rotation of the left / right drive motor 86 and rotating the drying nozzle 81 to a predetermined angle.
This is done by moving the position of one to a predetermined position on the left and right.

  And since the air jet 89 from the air nozzle hole 21 is ejected while maintaining substantially perpendicular to the surface to be dried, the peeling action on water droplets adhering to the surface to be dried is enhanced. In addition, since the action of the water droplets trying to move to the outside of the surface to be dried can be further suppressed, the water droplets can be easily collected at the center. Furthermore, even if the air jet is moved left and right, the distance until the jet hits the surface to be dried is not separated, so that a jet having a high air flow rate can be applied to the surface to be dried, and the water droplet removal capability can be further improved.

  As described above, the air ejection means according to the present invention and the sanitary washing apparatus provided with the air blowing means efficiently blow off water droplets and dry even with a small amount of air, so that they get wet not only in the sanitary washing apparatus but also in showers and hand washing. It can also be applied to dry the body. Further, the present invention can be applied to water drop removal and drying applications in washing machines such as dishwashers, car wash machines, and parts washing machines.

The perspective view which shows the state which mounted | wore the toilet bowl with the sanitary washing apparatus in Embodiment 1 of this invention. (A) is a schematic diagram which shows the state which closed the controller lid in an example of the remote control apparatus in the sanitary washing apparatus of FIG. 1, (b) is a schematic diagram which shows the state which opened the controller lid The block diagram which shows the structure of the washing water ejection means in the sanitary washing apparatus of FIG. The block diagram which shows the structure of the air ejection means and the heating means in the sanitary washing apparatus of FIG. The perspective view which shows the structure of the drive means in the sanitary washing apparatus of FIG. FIG. 1 is a time chart showing control operations of “wet washing” and “rapid drying” operations in the sanitary washing apparatus of FIG. (A) is a schematic sectional view of the operating state of “wet cleaning” in the sanitary washing apparatus of FIG. 1, (b) is a schematic sectional view of the operating state of the first step of “drying” in the apparatus, (c) ) Is a schematic sectional view of the operating state of the second step of “drying” in the apparatus The schematic diagram which shows the movement pattern of the air jet of the to-be-dried surface of the 1st and 2nd step of "drying" in the sanitary washing apparatus of FIG. The schematic diagram which shows the movement pattern of the air jet of the to-be-dried surface of the 3rd and 4th step of "drying" in the sanitary washing apparatus of FIG. FIG. 1 is a time chart showing control operations of “wet washing” and “solid drying” operations in the sanitary washing apparatus of FIG. The partial perspective view of the drying nozzle of the air ejection means and the rocking | swiveling means in the sanitary washing apparatus which concerns on the 2nd Embodiment of this invention Schematic plan view of a sanitary washing device equipped with a conventional drying device Schematic side sectional view of a sanitary washing device equipped with a conventional drying device

Explanation of symbols

DESCRIPTION OF SYMBOLS 30 Washing water ejection means 40 Heating means 50 Air ejection means 100 Sanitary washing apparatus 400 Toilet seat part

Claims (6)

A toilet seat that can be seated by a user, cleaning water jetting means for jetting cleaning water to the user's local area, air jetting means for jetting pressurized air to a surface to be dried around the local area of the user, and the drying target A sanitary washing apparatus provided with a heating means for blowing warm air on a surface, wherein the air jetting means and the heating means are simultaneously driven to inject a mixed jet of pressurized air and warm air onto a surface to be dried. A sanitary washing apparatus having a second drying for driving only the air jetting means and a third drying for driving only the heating means. The sanitary washing apparatus according to claim 1, wherein the first drying includes a preheating step in which warm air is blown in advance before the pressurized air is jetted onto the surface to be dried. The sanitary washing apparatus according to claim 1, wherein the sanitary washing apparatus has a plurality of drying operation modes by a combination of the first to third drying. The sanitary washing apparatus according to claim 3, wherein the drying operation mode includes a mode in which a step 1 for performing the first drying for a predetermined time and a step 2 for performing the third drying for a predetermined time are sequentially operated. The sanitary washing device according to any one of claims 1 to 4, wherein the hot air blowing condition in the first drying and the hot air blowing condition in the third drying are changed. The injection operation of pressurized air has a step of collecting water droplets adhering to the surface to be dried by a jet at the center of the surface to be dried, and a step of blowing off the collected water droplets according to any one of claims 1 to 5. Sanitary washing device.