JP2011153447A - Sanitary washing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary washing device capable of efficiently drying the private parts, wetted by washing over a short period of time. <P>SOLUTION: This sanitary washing device includes a body portion 200 which is placed on the rear of a toilet bowl 600, a toilet seat 500 which is placed on the near side of the body portion 200 on the toilet bowl 600 and which has a seating surface for seating a user, a nozzle portion 20 which has a washing water jet 22 and an air jet 21, a washing water supply portion 30 for supplying washing water, a pressurized air supply portion 50 for supplying pressurized air, a nozzle driving portion 52 for driving the nozzle portion 20 so as to make it scan an injection position of the pressurized air, and a control portion 150 which controls operations of the washing water supply portion, the pressurized air supply portion, and the nozzle driving portion. The control portion 150 controls the nozzle driving portion 52 so as to changing a range of a scanning locus of the pressurized air scanned in a surface to be dried, depending on a washing water jet range. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a sanitary washing device for washing a human body part, and more particularly, a sanitary apparatus having a drying function for removing water droplets adhering to the surface and drying by spraying pressurized air onto the human body part wet by washing. The present invention relates to a cleaning device.

  In a sanitary washing apparatus for washing a local part of a human body after a stool, various functions have been proposed in order to realize washing according to the user's preference. For example, after washing a local part (surface to be cleaned) of a human body using a sanitary washing device, instead of wiping off water droplets adhering to the local part by paper such as toilet paper, a nozzle having a jet port of pressurized air is provided. It is equipped with an air nozzle (drying device) that removes water droplets attached to the local area of the human body and its surrounding area by spraying pressurized air to the local area of the human body and its surrounding area (surface to be dried). Sanitary toilet seat devices (local cleaning devices) have been proposed.

  As a sanitary toilet seat device having such an air nozzle, when drying is performed by applying pressurized air to a surface to be dried wetted with cleaning water, water droplets on the surface to be dried spread more than necessary. Attempts have been made to make it easy to collect water droplets in one place and prevent them from blowing away. Specifically, apply pressurized air from the outer edge portion of the surface to be dried toward the center, gradually reduce the range where the pressurized air is applied, and remove water droplets while collecting them at the center of the surface to be dried. It is known to employ an air nozzle provided with an air discharge area variable portion (for example, see Patent Document 1, Claim 4, Claim 9, and paragraphs 0013 to 0018 below).

JP 2000-192527 A

  However, even with the conventional sanitary washing device described in Patent Document 1 described above, there is still room for improvement from the viewpoint of user comfort when drying the surface to be dried wet with washing water with pressurized air. was there.

  Conventionally, in a local cleaning device, the user gives instructions for multiple washing water ejection conditions such as washing strength (water force), water flow, and reciprocating movement of the washing water ejection position to improve the user's satisfaction in washing. The ones that can be executed according to the situation are widely put into practical use. For this reason, the range and area of the water droplets adhering to the human body are not constant depending on the spraying condition of the cleaning, and a difference occurs.

  Furthermore, it is usually difficult for the user to recognize whether the water droplets are attached over a wide area or a narrow area (visually or with a skin sensation), and pay attention to the cleaning conditions instructed while taking care of the wet area. Therefore, it is not good as a usability.

  On the other hand, the jet of pressurized air to remove water droplets attached to the human body after cleaning is started from the outer edge of the surface to be dried in consideration of the movement of the water droplets so as not to widen the wet range. It is desirable to remove moisture while moving the jet to the approximate center of the surface to be dried.

  In other words, if pressurized air is ejected in a certain range corresponding to multiple cleaning conditions, the attached water droplets spread outside the surface to be dried and cannot be removed completely, or conversely, the water droplets do not adhere. By jetting pressurized air to the necessary range, extra time and energy may be required.

  The present invention has been made in view of the above-described problems of the prior art, and after cleaning the surface to be cleaned under cleaning conditions according to the user's preference, the surface to be dried wet with cleaning water is pressurized air. To provide a sanitary washing device that can efficiently remove water droplets in a short time by controlling the ejection of pressurized air to change the moving range according to the washing conditions when drying with With the goal.

  In order to solve the above-described problems of the prior art, the present invention includes a main body placed behind the opening of a toilet having a toilet opening, and the main body on the opening of the toilet. A toilet seat having a seating surface on which a user is seated, a flush water outlet for ejecting flush water toward the user's local area, and the user's local area and its A cylindrical nozzle portion having an air outlet for ejecting pressurized air toward a surface to be dried including a peripheral portion, a cleaning water supply portion for supplying the cleaning water to the cleaning water outlet, and the air A pressurized air supply unit that supplies the pressurized air to the ejection port, a nozzle drive unit that drives the nozzle unit to scan the injection position of the pressurized air, the cleaning water supply unit, and the pressurized air A supply unit and a control unit for controlling the operation of the nozzle drive unit; The control unit changes the range of the scanning trajectory of the pressurized air that scans within the surface to be dried according to the ejection range of the cleaning water that is changed by the user. A sanitary washing device for controlling the nozzle driving unit is provided.

  As a result, if the range of the surface to be cleaned hits the user's preference, the surface to be dried to which the pressurized air hits expands accordingly. On the other hand, when the surface to be cleaned to which the cleaning water hits is narrowed, water droplets can be removed in a short time.

  Here, in the present invention, the “surface to be cleaned” is a body surface centered on the user's local area. The range is preferably a range that can be contaminated by excretion of the user in and around the human body part.

  The range of this “surface to be cleaned” includes the distribution of the user's body shape, toilet seat size, toilet seat shape, wash water discharge amount range, wash water discharge pressure range, etc. You may obtain | require and set beforehand by either of these. In addition, the range of this “surface to be cleaned” is determined every time the user uses the sanitary cleaning device by a sensor that can detect the range that can be soiled by excretion (such as an infrared sensor that detects moisture in the excrement). Alternatively, the optimum range may be obtained by sensing.

  Further, in the present invention, the “surface to be dried” is a body surface centered on the user's local area. The range is preferably a range that can be wetted with washing water when washed with washing water in and around the human body part.

  Furthermore, the range (area) of the “surface to be dried” is equal to or greater than the range (area) of the “surface to be cleaned”, and the “surface to be cleaned” is set to include the entire range of “surface to be cleaned”. Preferably it is.

  In addition, this “range that can be wetted with cleaning water” usually includes the above-mentioned “surface to be cleaned”, that is, “the range that can be contaminated by the excretion of the user in and around the human body part” If the “surface to be cleaned” does not include the “surface to be cleaned” range, the range of “surface to be dried” is the range of “surface to be wet with cleaning water” and “surface to be cleaned”. It is preferable that it is the range containing.

The range of the “to-be-dried surface” is the same as that for the “to-be-cleaned surface” range. In consideration of the discharge pressure range of air, etc., it may be obtained and set in advance by either experiment or simulation. In addition, the “surface to be dried” range is also used by a sensor that can detect the range that can be wetted with cleaning water (such as an infrared sensor that detects moisture), as in the configuration for determining the range of “surface to be cleaned”. It is good also as a structure which calculates | requires every time a person uses a sanitary washing apparatus, and calculates | requires the optimal range.

  According to the sanitary washing device of the present invention, the nozzle driving unit is controlled to change the jetting range of the pressurized air from the nozzle unit according to the jetting range of the washing water changed by the user. If the range of the surface to be cleaned which is exposed to the cleaning water is expanded according to the preference, the surface to be dried to which the pressurized air is applied expands accordingly, and the cleaning water spread around the local area of the human body can be removed without leaving any excess. On the other hand, when the surface to be cleaned which is subjected to the cleaning water is narrowed, water droplets can be removed in a short time. Thereby, when drying the to-be-dried surface wet with washing water with pressurized air, a user's comfort and the feeling of satisfaction after drying improve.

The perspective view which shows the state which mounted | wore the toilet bowl with the sanitary washing apparatus in Embodiment 1 of this invention. Schematic diagram showing an example of a remote control device in the sanitary washing device The block diagram which shows the structure of the washing water supply part in the sanitary washing apparatus The block diagram which shows the structure of the pressurized air supply part and heating part in the sanitary washing apparatus The perspective view which shows the structure of the drive part in the sanitary washing apparatus Time chart showing the control operation of "wet washing" and "drying" operation in the sanitary washing device Time chart showing the control operation of the cleaning mode "Wide" and "Drying" in the sanitary washing device (A) Schematic sectional view showing the operating state of “cleaning” in the sanitary washing apparatus (b) Schematic sectional view showing the operating state of the first step of “drying” in the apparatus (c) “ Schematic sectional view showing the operating state of the second step of "drying" Schematic diagram showing the movement trajectory of the air jet during “wet washing” operation in the sanitary washing device Schematic diagram showing another movement trajectory of the air jet in the “wide cleaning” operation of the sanitary cleaning device Schematic diagram showing still another movement pattern of the air jet of yet another “dry” operation in the sanitary washing apparatus The perspective view which shows the structure of the other drive part in the sanitary washing apparatus. (A) Schematic sectional view showing the operating state of the “cleaning” operation of the sanitary washing device in the second embodiment (b) Schematic showing the operating state of the first step of the “drying” operation in the sanitary washing device (C) Typical sectional view showing the operating state of the second step of the “drying” operation in the sanitary washing device Schematic diagram showing still another movement pattern of the air jet of “dry” operation in the sanitary washing apparatus Schematic diagram of a sanitary washing device equipped with a conventional drying device

1st invention of this invention is mounted in front of the said main body on the said opening part of the said toilet body and the main body mounted behind the said opening part of the toilet bowl which has the opening part for toilets And a toilet seat having a seating surface on which the user is seated, a washing water outlet for ejecting washing water toward the user's local area, and a surface to be dried including the user's local area and its peripheral area A cylindrical nozzle portion having an air outlet for ejecting pressurized air toward the cleaning water, a cleaning water supply portion for supplying the cleaning water to the cleaning water outlet, and the pressurized air at the air outlet A pressurized air supply unit, a nozzle drive unit that drives the nozzle unit to scan the injection position of the pressurized air, the cleaning water supply unit, the pressurized air supply unit, and the nozzle drive A control unit for controlling the operation of the unit, and the control Is a sanitary cleaning that controls the nozzle drive unit to change the range of the scanning trajectory of the pressurized air that scans within the surface to be dried, according to the ejection range of the cleaning water that is changed by the user Device.

  With this configuration, if the range of the surface to be cleaned hit by the user's preference is expanded, the surface to be dried hit by the pressurized air will expand accordingly, so that the cleaning water spread around the local area of the human body is not left. On the other hand, when the surface to be cleaned to which the cleaning water hits is narrowed, water droplets can be removed in a short time.

  In particular, according to a second aspect of the present invention, the control unit of the first aspect of the present invention is configured so that the control unit expands the range of the scanning trajectory of the pressurized air as the washing water strength increases. Since the cleaning surface is expanded due to the strong water flow of the cleaning water, the range of pressurized air sprayed after the cleaning water stops is expanded, and the cleaning water that has spread around the local area of the human body is completely removed. be able to.

  According to a third aspect of the invention, in particular, the nozzle drive unit of the first or second aspect of the invention is configured such that the nozzle drive unit moves the nozzle unit forward / backward in the axial direction of the nozzle unit and the axis of the nozzle unit. A rotation driving unit that rotates the nozzle unit as a center.

  As a result, at least one of the advance / retreat driving unit and the rotation driving unit is controlled, and the pressurized air ejected from the air ejection port at the position of the air ejection port of the nozzle is the surface to be dried. The movement trajectory of the pressurized air set in advance so as to hit is moved to remove water droplets adhering to the surface to be dried.

  That is, according to the sanitary washing device of the present invention, by rotating the nozzle portion, the injection angle from the air outlet can be deflected, and the spraying position of pressurized air on the human body can be moved in the lateral direction. Since it is not necessary to move the nozzle part in the lateral direction and it is not necessary to provide a moving space that allows the nozzle part to move, the size of the sanitary washing device can be configured compactly. Furthermore, the rotational position of the nozzle portion can drive the pressurized air ejection position to the human body at a high speed in the lateral direction, and the water droplets adhering to the periphery of the human body portion can be efficiently removed in a short time.

  According to a fourth aspect of the invention, in particular, the nozzle driving unit of the first or second aspect of the invention includes an advancing / retreating driving unit that drives the nozzle unit to advance / retreat in the direction of the axis of the nozzle unit, and the nozzle unit at the tip of the nozzle unit. Has a swing drive unit that swings in a lateral direction intersecting the direction of the axis in a plane substantially parallel to the seating surface.

  Thereby, since the jet of pressurized air ejected from the air ejection port 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. Further, since the action of the water droplets trying to move outside the surface to be dried can be suppressed, the water droplets can be easily collected and blown toward the center of the surface to be dried.

  Furthermore, even if the jet of pressurized air is moved to the left and right, the distance until the jet hits the surface to be dried is not separated, so pressurized air with a high flow rate can be applied to the surface to be dried and adhere to the human body. The ability to remove water droplets is improved, and water droplets can be efficiently removed in a short time.

  In the fifth aspect of the invention, in particular, in the control unit of any one of the first to fourth aspects, the movement trajectory of the pressurized air that hits the surface to be dried is a relationship between the ejection start point and the ejection end point of the pressurized air. The nozzle drive unit is controlled such that the distance between adjacent forward paths in the movement trajectory is substantially constant.

  As a result, by controlling the nozzle drive unit so as to draw a zigzag trajectory in which the width between adjacent forward paths becomes substantially constant, it is possible to remove water droplets while sequentially bringing them to the center. Can be removed.

  In the sixth aspect of the invention, in particular, the control unit according to any one of the first to fourth aspects of the invention is such that the movement trajectory of the pressurized air hitting the surface to be dried is substantially from the peripheral portion of the surface to be dried. The nozzle drive unit is controlled so that the distance between adjacent movement trajectories becomes substantially constant in a spiral shape toward the center.

  As a result, the movement trajectory of the pressurized air for removing the adhering water droplets from the edge of the surface to be dried toward the approximate center of the surface to be dried has a short nozzle driving distance with little folding, and the movement locus is continuous. Thus, since the pressurized air is not stopped halfway, water droplets can be efficiently removed in a short time.

  In a seventh aspect of the invention, in particular, in any one of the first to sixth aspects of the invention, the seventh aspect has a notifying unit for notifying an operating state of the pressurized air ejection operation.

  As a result, the user can recognize the remaining time until the end of the ejection and the fact that the user is approaching the end. Even if the time required for the ejection operation varies depending on the cleaning conditions, it can be used comfortably without a sense of incongruity. Water drying can be efficiently removed in a short time because it takes a long time until the drying is completed, and on the contrary, the drying is not repeated repeatedly with anxiety about the finish of drying.

  In an eighth aspect of the invention, in particular, in any one of the first to seventh aspects of the present invention, the eighth aspect of the present invention further includes a warm air supply section that blows warm air to a local area of the user and a wide area around the area. The wind supply unit continuously blows the warm air for a predetermined time after the completion of the pressurized air ejection operation.

  As a result, only the warm air hits the surface to be dried after the jet of pressurized air is blown, so that the user can easily recognize that the water droplets on the surface to be dried have been sufficiently removed with the warmth of the skin, and the finish of the drying Therefore, it does not repeatedly dry with anxiety, so that it is possible to efficiently remove water droplets in a short time by ejecting pressurized air in a range corresponding to the cleaning mode and use it comfortably.

  Hereinafter, preferred embodiments of the sanitary washing device of the present invention will be described in detail with reference to the drawings. In the following description, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.

(First embodiment)
FIG. 1 is an external perspective view showing a sanitary washing device and a toilet device provided with the same according to an embodiment of the present invention.

  The toilet apparatus 1000 is usually installed in a toilet room or a bathroom. The toilet device 1000 is configured by attaching the sanitary washing device 100 on the opening of a toilet 600 having an opening for toilet. The sanitary washing device 100 includes a main body 200, a remote control device 300, a toilet seat 400, and a toilet lid 500.

  The main body 200 pivotally supports the toilet seat 400 and the toilet lid 500, and the toilet seat 400 and the toilet lid 500 are attached to be openable and closable. The main body 200 is provided with a pressurized air supply unit 50 including a drying nozzle unit 20a, a cleaning water supply unit 30 including a cleaning nozzle unit 20b for ejecting cleaning water, and a heating unit 40. The control unit 150 is built in.

  The seating sensor 610 is provided in the upper front part of the main body 200. The seating sensor 610 is composed of, for example, a reflective infrared sensor. 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, and includes, for example, a reflective infrared sensor. The room entry detection sensor 700 detects that a user has entered the toilet room when detecting infrared rays reflected from the human body.

  The control unit 150 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 pressurized air supply unit 50 includes an air pump 51 that supplies pressurized air, a drying nozzle unit 20 a that includes an air ejection port 21 that ejects the pressurized air, and compressed air that is ejected from the air ejection port 21. In order to move the jet flow back and forth, right and left, it is composed of a nozzle drive unit 52 that moves and drives the nozzle unit 20 including the drying nozzle unit 20a and the cleaning nozzle unit 20b, and the pressurized air ejected from the air jet port 21 is The wind speed reaching the surface to be dried has the ability of 20 to 30 m / s, and the contact area of the jet on the surface to be dried is about 1 cm in diameter.

  The cleaning water supply unit 30 includes a cleaning nozzle unit 20b, an on-off valve 34 that opens and closes the supply of tap water, a hot water heating unit 31 that heats tap water, and the hot water from the hot water heating unit 31 in the direction of the cleaning nozzle unit 20b. And the switching valve 32 that switches the flow path to the inside direction of the toilet 600. And the drying nozzle part 20a and the washing | cleaning nozzle part 20b are comprised integrally in the nozzle part 20. FIG.

  The heating unit 40 includes an air fan 41 that is a blowing unit that blows air to the built-in heater 44 and supplies hot air, and a duct 43 that guides the hot air to the hot air outlet 42. The hot air ejected from 42 is slower than the flow rate of the pressurized air ejected from the pressurized air supply unit 50, is 10 m / s or less, and has a configuration in which the contact area with the surface to be dried is wide and diffuses over substantially the entire surface to be dried. It has become.

  FIG. 2 is a front view of the remote control device 300 shown in 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, cleaning strength adjustment switches 322 and 323, cleaning position adjustment switches 324 and 325, and a cleaning mode are provided above the controller main body 301. The controller switch 302 is provided with a stop switch 311, a drying switch 314, a butt switch 312, and a bidet switch 313.

  The operation of each switch is 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. A control unit 150 (see FIGS. 3 and 4 to be described later) of the main body 200 controls the operation of each component of the main body 200 based on the received signal.

  For example, when the user operates the butt switch 312 or the bidet switch 313, cleaning water is jetted from the cleaning nozzle portion 20b in FIG. Further, when the user operates the stop switch 311, the cleaning water ejected from the cleaning nozzle portion 20 b to the user's local portion is stopped.

  When the user operates the drying switch 314, spot-like pressurized air is ejected from the air outlet 21 of the pressurized air supply unit 50 toward the surface to be dried of the user's local area, and at the same time, heating is performed. Hot air is blown out from the section 40 as a whole.

  Next to the cleaning strength adjustment switches 322 and 323, a display unit 322G that indicates the cleaning strength that is changed by the operation of these switches is provided. When the user operates the strength adjustment switches 322 and 323 during the cleaning, the display is changed correspondingly, and the flow rate and pressure of the cleaning water sprayed to the user's local area are controlled by the valve opening degree of the switching valve 32. It is adjusted by the change of.

  Next to the cleaning position adjustment switches 324 and 325, a display unit 324G is provided that indicates a cleaning position that is changed by operating these switches. The position of the cleaning nozzle 20b is set in advance (for example, 100mm forward) as a reference cleaning point so that when a person with a standard figure sits on the toilet seat, the cleaning water hits the center of the local area. In the case where a shift occurs due to a difference in the body shape or seating position of the person, the cleaning water ejection position can be adjusted by moving the front and rear positions of the nozzles in stages.

  When the user operates the cleaning position adjustment switches 324 and 325, for example, the optimal cleaning water jetting out of all five stages in which an adjustment range of 20 mm before and after the reference cleaning point is provided at every 10 mm interval is provided. The position can be selected. By displaying the position of the cleaning nozzle 20b at this time on the display unit 324G step by step, the operation result is easily understood by the user.

  When the move switch 330 for selecting the cleaning mode is operated, the front and rear cleaning range is widened by performing cleaning while driving the cleaning nozzle portion 20b back and forth at the cleaning position. For example, cleaning is performed while reciprocally driving 8 mm back and forth around the adjusted cleaning position.

  When the wide switch 331 for selecting the cleaning mode is operated, the cleaning nozzle portion 20b is rotated to drive the cleaning water jet port 22 to the left and right, and the cleaning water is reciprocated in the front-rear direction to eject the cleaning water. The front / rear / right / left cleaning range becomes wider.

  The notification unit 320 in FIG. 2A notifies the operating state of the pressurized air ejection operation. For example, the display unit displays the remaining time until the end of the drying operation. When the user presses the drying switch 314 and starts the operation of ejecting pressurized air, the remaining time is displayed in conjunction with the display unit. Even if the drying time varies depending on the washing conditions, the user can grasp the time until the end, so that the user can use it comfortably without feeling uncomfortable.

  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. 2 (b), in addition to the above-described stop switch 311, drying switch 314, buttocks switch 312 and bidet switch 313, there is a warm air temperature at the bottom of the controller body 301 covered by the controller lid 302. An adjustment switch 340, a water temperature adjustment switch 333, and a toilet seat temperature adjustment switch 334 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 150 of the main-body part 200 controls operation | movement of each structure part of the main-body part 200 and the toilet seat 400 based on the received signal.

  When the user operates the hot air temperature adjustment switch 340, the temperature of the hot air blown from the heating unit 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 44 (FIG. 4) is turned off and only air is blown.

  Further, when the user operates the water temperature adjustment switch 333, the temperature of the cleaning water ejected from the cleaning nozzle portion 20b to the local portion of the user 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 supply unit 30 provided in the main body 200 will be described. FIG. 3 is a block diagram illustrating the configuration of the cleaning water supply unit 30 and the control unit 150.

  As shown in FIG. 3, the cleaning water supply unit 30 includes an on-off valve 34, a hot water heating unit 31, a switching valve 32, a cleaning nozzle unit 20b (nozzle unit 20), a nozzle driving unit 52, a front / rear driving motor 53, and a left / right driving motor. 54.

  The control unit 150 controls operations of the on-off valve 34, the hot water heating unit 31, the switching valve 32, the front / rear drive motor 53, and the left / right drive motor 54. During the cleaning operation, the front / rear drive motor 53 is driven by a predetermined amount by operating the cleaning position adjustment switches 324 and 325 (see FIG. 2) of the remote control device 300 (see FIG. 2).

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

  As shown in FIG. 4, the pressurized air supply unit 50 includes a drying nozzle unit 20 a (nozzle unit 20), an air pump 51, a nozzle driving unit 52, a front and rear driving motor 53, and a left and right driving motor 54. The heating unit 40 includes an air fan 41, a duct 43, a heater 44, and a hot air outlet 42.

  The drying nozzle unit 20 a of the pressurized air supply unit 50 is configured integrally with the cleaning nozzle unit 20 b of the cleaning water supply unit 30 and is accommodated in one nozzle unit 20. Further, the nozzle drive unit 52 and the control unit 150 including the front / rear drive motor 53 and the left / right drive motor 54 are shared by the above-described cleaning water supply unit 30 and the pressurized air supply unit 50.

  The control unit 150 controls the air pump 51, the front / rear drive motor 53, and the left / right drive motor 54, detects a signal from the room temperature detection unit 151, and controls the power of the heater 44 and the operation of the air fan 41 according to the detected room temperature. Control. The room temperature detector 151 detects the room temperature by a thermistor (not shown) built in the main body 200 so that the ambient temperature of the sanitary washing device can be detected.

  And the control part 150 drives the heating part 40 with the pressurized air supply part 50, attracting the warm air blown from the heating part 40 with the pressurized air ejected from the pressurized air supply part 50 Control is performed in two operation patterns: a first drying operation that is mixed and ejected onto the surface to be dried, and a second drying operation that drives only the heating unit 40 and blows only warm air onto the surface to be dried.

  Next, the nozzle part 20 and the nozzle drive part 52 which drives it are demonstrated. FIG. 5 is a perspective view showing configurations of the nozzle unit 20 and the nozzle driving unit 52.

  As shown in FIG. 5, the nozzle drive unit 52 includes a nozzle unit 20, a left and right drive unit 70 that swings the air jet from the nozzle unit 20 in the left and right direction, and a front and rear drive unit that reciprocates the air jet in the front and rear direction. The nozzle drive unit 52 can arbitrarily move the contact range of the pressurized air ejected from the nozzle unit 20 to the surface to be dried over the entire surface to be dried.

  The nozzle portion 20 has a cylindrical shape, and is provided with an air outlet 21 and a washing water outlet 22 in the vicinity of the tip, and an air cavity 23 that guides pressurized air to the air outlet 21 and cleaning water. A water cavity 24 that leads to the washing water outlet 22 is provided. That is, the nozzle unit 20 is configured to serve as the drying nozzle unit 20a and the cleaning nozzle unit 20b. Therefore, when the pressurized air is ejected by the nozzle driving unit 52, the ejection position of the pressurized air can be arbitrarily moved over a wide surface around the human body local part, and when the washing water is ejected, The washing water ejection position can also be arbitrarily moved over a wide surface around the local part of the human body.

  In addition, the range in which the pressurized air can be ejected is set to a sufficiently wide range in both the front, rear, left and right directions than the adjustment range of the cleaning position. For example, the range in which pressurized air can be ejected is set to a range of 50 mm in the front, rear, left, and right directions from the cleaning center point.

  The air tube 25 connected to the air pump 51 is connected to the air cavity 23, and pressurized air from the air pump 51 is supplied to the air cavity 23. Further, the water tube 26 connected to the switching valve 32 is connected to the water cavity 24, and the washing water from the switching valve 32 is supplied to the water cavity 24. 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 nozzle portion 20 rotates or moves back and forth.

  The base 55 is arranged such that the nozzle portion 20 is inclined forward along a rail portion 56 configured in a forward inclined posture on the upper surface, and is held through the nozzle portion 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 nozzle portion 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 nozzle portion 20 is rotatably held. The nozzle unit 20 is driven along the rail unit 56 in accordance with the operation of the slider 58.

  The front-rear drive unit 71 includes a front-rear drive motor 53, a slider 58, and a screw part 59. The front-rear drive motor 53 is disposed at the rear part of the base 55, and the screw part 59 disposed 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 nozzle unit 20 held by the slider 58 is driven back and forth in accordance with the rotation of the front and 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 left and right drive unit 70 includes a left and right drive motor 54, a gear A61, a gear B62, and a gear C63 disposed on the slider 58, and transmits the rotation of the left and right drive motor 54 to the nozzle unit 20 through the gear A61, the gear B62, and the gear C63. . Accordingly, the nozzle portion 20 rotates in accordance with the forward / reverse rotation of the left / right drive motor 54, and the air jet ejected from the air ejection port 21 swings to the right and left in C and D of FIG.

Hereinafter, the control operation of the control unit 150 will be described with reference to FIGS. 6, 7, and 8.
FIG. 6 is a time chart of the control operation of “wet washing” and “drying” corresponding thereto, that is, when the drying switch 314 is operated after the buttocks switch 312 is operated. FIG. 7 is a time chart showing the control operation of the cleaning mode “wide” and the corresponding “drying”, that is, a time chart when the drying switch 314 is operated after the wide switch 331 is operated. FIG. 8 is a schematic cross-sectional view showing the operating states of “cleaning” and “drying”. FIG. 9 and FIG. 10 are schematic diagrams showing a movement pattern of the jet contact area E on the surface to be dried in the “dry” operation state.

  As shown in FIG. 6, at the time T <b> 0 when the operation is not yet performed, the nozzle portion 20 is disposed at a rear end in the front-rear direction, that is, at a predetermined storage position in the main body portion 200. The left-right direction of the nozzle unit 20 is set at an angle to a detection position of a position sensor (not shown) that detects a center position provided in the swinging unit 70. This angle becomes the central angle, and the jet angle of the air jet 21 and the washing water jet 22 is set in the upward (left-right center) direction.

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

  At the time T2 when the temperature of the hot water from the hot water heating unit 31 reaches a predetermined temperature (for example, 36 ° C.), the front / rear drive motor 53 is operated to advance the nozzle unit 20 to the reference cleaning point (for example, 100 mm forward). At time T3, the switching water 32 switches the cleaning water to the cleaning water jet port 22 (cleaning nozzle portion 20b) side, and the cleaning water is jetted onto the surface to be cleaned of the user. The power control to the hot water heating unit 31 is performed using known PID or FF control so that the temperature detected by a temperature sensor (not shown) that detects the temperature of the hot water becomes a set temperature (for example, 40 ° C.). As shown in FIG. 8A, the wet state of the surface to be cleaned in the 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. The range that can be wet by this “wet cleaning” is W1 in FIG.

  At the time T4 in FIG. 6 when the user presses down the stop switch 311 of the remote control device 300 to end the butt washing, the switching valve 32 switches the water flow to the toilet 600 side, and from the washing water jet port 22 At the same time as the ejection of the washing water is stopped, the energization to the hot water heating unit 31 is stopped, the front and rear drive motor 53 is reversed, and the nozzle unit 20 is retracted to the storage position in the main body unit 200. 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 sequence 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 time T6, the heater 44 is energized and the temperature of the heater 44 itself starts to rise. By energizing the heater 44 before operating the air fan 41 in this way, the heater 44 is heated with little heat dissipation, so that the temperature of the heater 44 can be increased at high speed.

  When the drying switch 314 is pressed, the display unit 320 of the remote control device 300 displays the remaining time until the pressurized air ejection operation ends. For example, 30 seconds is displayed as the operation time from the time T6 to the time T17 at the same time as the start, and the remaining time is displayed every second by counting down.

  At the same time, the air pump 51 is operated for a short time (for example, 1 second), and the pressurized air is ejected from the air outlet 21 of the nozzle unit 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 nozzle portion 20 in a state where the nozzle portion 20 is in the storage position. Thereby, even if the drying nozzle part 20a and the washing nozzle part 20b are integrated into one nozzle part 20, there is no problem.

  The operation of the air fan 41 is started at time T7, and warm air is blown out from the warm air outlet 42. Since the hot air temperature blown out passes through the heated heater 44, the hot air temperature is high from the beginning. And it sets so that the hot air of high temperature (for example, 60 degreeC) may be blown off by controlling to the heating amount of the above-mentioned heater 44. FIG. 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 time T8, the front / rear drive motor 53 is operated to advance the nozzle unit 20 to a predetermined position (for example, 100 mm forward), and the air pump 51 is operated for a short time (for example, 1 second). It is ejected from the exit 21 for a moment. This operation is not a jet for removing water droplets, but gives a sense of security to the user that the jetting position of the pressurized air is appropriate by jetting the compressed air at a low flow velocity to the center of the cleaned local area. belongs to.

  Thereafter, the front-rear drive motor 53 is operated to advance the nozzle unit 20 to a predetermined position (for example, 130 mm forward), while the left-right drive motor 54 is operated to adjust the left-right angle of the nozzle unit 20 to the right-side predetermined angle (for example + 30 °). Change the angle. By this operation, the air outlet 21 faces the position where the pressurized air is ejected to one end of the outer edge portion of the pressurized air ejection range F1 shown in FIG.

  At time T9, the operation of the air pump 51 is started, and the injection of pressurized air from the air outlet 21 to the surface to be dried is started.

  In the first step from time T9 to time T10, the operation direction and operation speed of the left and right drive motors 54 and the front and rear drive motors 53 of the nozzle drive unit 52 are controlled, so that the front and rear drive of the nozzle unit 20 is within a predetermined range (for example, The reciprocating operation is performed at a high speed at a forward speed of 70 mm to 130 mm, and at the same time, the left and right angles of the nozzle portion 20 are slowly driven toward the right and left central direction within a predetermined angle range on the right side (for example, + 30 ° to + 20 °). In the operation of the first step, the air jet from the nozzle unit 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 movement locus M1 of FIG. 9A, the air jet contact area E moves toward the center G while periodically moving in the tangential direction of the right end of the surface to be dried F1 and reciprocating at high speed. Since it gradually moves gradually, the center of the range in which the pressurized air ejected from the air ejection port 21 hits the surface to be dried F1 reciprocates between the ejection start point at which ejection starts and the ejection end point at which it ends. The nozzle drive unit is controlled so that at least two turning points where the moving direction of the center changes are set between the ejection start point and the ejection end point, and the width between adjacent forward paths is substantially constant. A zigzag movement trajectory is drawn.

  As a result, as shown in FIG. 8 (b), since the ejection of pressurized air starts from the outside sufficiently outside the ejection range of the washing water, the water droplets spreading and adhering to the right side of the surface to be dried Can be blown away while collecting.

At time T10 in FIG. 6, the air pump 51 is temporarily stopped, and the left-right angle of the nozzle portion 20 is changed to a left-side predetermined angle (for example, −30 °). Then, at time T11, the operation of the air pump 51 is restarted and the ejection of pressurized air is started.

  Then, in the second step from the time T11 to the time T12, the front-rear drive of the nozzle unit 20 is reciprocated at a high speed within a predetermined range (for example, 70 mm to 130 mm forward) as in the first step. The angle is slowly driven toward the central angle within a predetermined angle range on the left side (for example, −30 ° to −20 °). The operation of the second step is that the air jet from the nozzle unit 20 gradually moves toward the center while moving periodically at a high speed in the front-rear direction from the predetermined distance on the left side of the surface to be dried of the user. Come on.

  Therefore, as shown in the movement locus M2 in FIG. 9A, the contact area E of the air jet gradually moves toward the center G while periodically moving in the tangential direction at the left end of the surface to be dried F1. As shown in the figure, a zigzag movement trajectory is drawn. As a result, as shown in FIG. 8 (c), 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 T12 of the second step, the nozzle unit 20 is advanced to a predetermined position ahead (for example, 130 mm forward). Then, in the third step from time T12 to time T13, the front-rear drive of the nozzle unit 20 is slowly retracted from the predetermined position in front (for example, 130 mm forward) toward the center, and at the same time, the left-right angle of the nozzle unit 20 is It is reciprocated at a high speed from the angle to a predetermined angle on the left side (for example, + 30 ° to −30 °).

  In the operation of the third step, the air jet from the nozzle portion 20 gradually approaches the center portion from the predetermined front position toward the rear while moving at high speed in the left-right direction on the surface to be dried. Therefore, as shown in the movement locus M3 in FIG. 9B, the contact range E of the air jet flows toward the center G while performing periodic movement that reciprocates at high speed in the tangential direction of the tip of the surface to be dried F1. Since it moves gradually, a zigzag movement trajectory is drawn. 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 time T13, the air pump 51 is temporarily stopped, and the nozzle unit 20 is moved to a rear predetermined position (for example, 70 mm forward). At time T13, the operation of the air pump 51 is resumed and the ejection of pressurized air is started.

  Then, in the fourth step from time T14 to time T15, while the nozzle portion 20 is slowly advanced from the rear predetermined position toward the center portion, the left and right angles of the nozzle portion 20 are simultaneously changed from the right predetermined angle to the left predetermined angle (for example, + 30 °). To -30 °) at high speed. The operation of the fourth step is that the air jet from the nozzle section 20 gradually moves closer to the center from a predetermined distance from the rear while moving at high speed in the left-right direction on the surface to be dried. come.

Therefore, as shown in the movement locus M4 in FIG. 9B, the contact range E of the air jet flows toward the center G while performing periodic movement that reciprocates at high speed in the tangential direction of the rear end of the surface to be dried F1. Gradually move so that 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 time T15, the air pump 51 is stopped again, and the nozzle unit 20 is moved to a predetermined position ahead (for example, 130 mm forward). Then, at time T16, the operation of the air pump 51 is restarted, and the ejection of pressurized air is started.

  Then, in a fifth step from time T16 to time T17, the nozzle portion 20 starts to retract from a predetermined position in front, passes through the central portion, and slowly moves to a predetermined distance (for example, 70 mm forward) from the central portion. And retreat. At the same time, the left and right angles of the nozzle portion 20 are driven to reciprocate at high speed from the right predetermined angle to the left predetermined angle (for example, + 30 ° to −30 °). The operation of the fifth step is as follows. The air jet from the nozzle unit 20 gradually moves backward from a predetermined position in the forward direction while periodically moving in the left-right direction on the surface to be dried. And then gradually move to a predetermined position behind the center.

  Therefore, as shown by the movement locus M5 in FIG. 9C, the position where the air jet strikes the surface to be dried gradually moves from the front through the center to the rear, so that water droplets remain in 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 time T17, the air pump 51 is stopped, the nozzle unit 20 is moved to the rear end storage position, and the horizontal direction of the nozzle unit 20 is returned to the central angle.

  After the operation of the pressurized air supply unit 50 ends, until the time T18 when the user depresses the stop switch 311 of the remote control device 300, only the heating unit 40 is driven and only the warm air is blown to the surface to be dried. The operation of the heater 44 is stopped at time T18.

  In the second drying operation, only warm air is applied to the surface to be dried, so that the user can easily recognize that the water droplets on the surface to be dried have been sufficiently removed with a warm sense of the skin, and have anxiety about the finish of drying. Since it does not dry repeatedly, it is possible to efficiently remove water droplets in a short time by ejecting pressurized air in a range corresponding to the cleaning mode and use it comfortably.

  By stopping the air fan 41 after the time T18, the residual heat of the heater 44 is reduced, and the drying operation ends at the time T19.

  FIG. 7 is a time chart of the control operation of the cleaning mode “wide” and the corresponding “drying” (when cleaning is performed with the switch 331 “wide” in FIG. 2 and then drying with the switch 314 “drying”). The operation from time T0 to time T3 shown in FIG. 7 is the same as that in FIG. At time T3, the cleaning mode “wide” is started.

  In the cleaning mode “wide”, the operation direction and operation speed of the left and right drive motors 54 and the front and rear drive motors 53 of the nozzle drive unit 52 are controlled from the time T3 to the time T4, so that the front and rear drive of the nozzle unit 20 is performed for a predetermined distance (for example, The reciprocating operation is performed at a medium speed (for example, 1 Hz) at a setting position of 8 mm in the front-rear direction, and at the same time, the left-right angle of the nozzle unit 20 is reciprocated at a predetermined angle (for example, set angle ± 3 °) at a high speed (for example, 5 Hz). Therefore, since the washing water becomes a water flow that sways finely from side to side and reciprocates back and forth, this `` wide washing '' washes the user's local area, including the front and back, left and right periphery, than the `` wet washing '' described above, The range that can be wet by this "wide cleaning" is W2 in FIG. The feeling of cleaning as well as cleaning performance is improved by spreading the water flow and moving the cleaning position back and forth.

  7, similarly to the operation of FIG. 6 described above, at time T4, the user presses the stop switch 311 of the remote control device 300 to stop washing, and at time T6, the drying starts by pressing the drying switch 314. Monkey. From time T4 to time T8, the operation is the same as in the case of “wet cleaning” in FIG.

  Thus, in the case of the cleaning mode “wide” in which the cleaning range is widened, the range of water droplets adhering to the buttocks after cleaning is increased accordingly, so that the switch 314 “dry” is compared with the case of cleaning with the buttocks switch 312. The difference in the case of drying is that the pressurized air ejection range corresponding to “wide cleaning” is F2 in FIG.

Accordingly, when the drying switch 314 is pressed, the display unit 320 of the remote control device 300 displays the remaining time until the pressurized air ejection operation is completed. (For example, the remaining jetting time of 50 seconds corresponding to the cleaning mode “wide” is displayed at the same time as the start, and the remaining time is counted down and displayed in seconds.)
In this way, even if the pressurized air jetting time changes depending on the cleaning conditions, the status of the pressurized air jetting operation is displayed, so the user can feel comfortable without being anxious and frustrated until the end. Can be used for

  The ejection of pressurized air corresponding to the cleaning mode “wide” is caused by operating the left / right drive motor 54 while operating the front / rear drive motor 53 to advance the nozzle unit 20 to a predetermined position (for example, 150 mm forward) at time T9. The left-right angle of the nozzle unit 20 is changed to a right-side predetermined angle (for example, + 50 °).

  In the first step from time T9 to time T10, the operation direction and operation speed of the left and right drive motors 54 and the front and rear drive motors 53 of the nozzle drive unit 52 are controlled, so that the front and rear drive of the nozzle unit 20 is within a predetermined range (for example, At the same time, the nozzle unit 20 is slowly driven toward the center angle in the right angle range (for example, + 50 ° to + 20 °). Therefore, as shown in the movement locus M6 in FIG. 10A, the air jet contact area E moves toward the center G while periodically moving in the tangential direction of the right end of the surface to be dried F2 and reciprocating at high speed. Since it gradually moves gradually, a zigzag movement locus is drawn as shown in FIG.

  At time T10 in FIG. 7, the air pump 51 is temporarily stopped, and the left and right angles of the nozzle unit 20 are changed to a left predetermined angle (for example, −50 °). Then, at T11, the operation of the air pump 51 is resumed and the ejection of pressurized air is started.

  Then, in the second step from time T11 to time T12, the front-rear driving of the nozzle unit 20 is reciprocated at a high speed within a predetermined range (for example, 50 mm to 150 mm forward) as in the first step. The angle is slowly driven toward the central angle within a predetermined angle range on the left side (for example, −50 ° to −20 °). The operation of the second step is that the air jet from the nozzle unit 20 gradually moves toward the center while moving periodically at a high speed in the front-rear direction from the predetermined distance on the left side of the surface to be dried of the user. Come on. Therefore, as shown in the movement locus M7 in FIG. 10B, the contact area E of the air jet gradually moves toward the center G while periodically moving in a tangential direction at the left end of the surface to be dried F2. As shown in the figure, a zigzag movement trajectory is drawn.

  At the end time T12 of the second step, the nozzle unit 20 is advanced to a predetermined position ahead (for example, 150 mm forward). Then, in the third step from time T12 to time T13, while the nozzle part 20 is slowly retracted from the predetermined position in front (for example, 150 mm forward) toward the center, the left and right angles of the nozzle part 20 are simultaneously changed from the predetermined right angle to the left. A reciprocating drive is performed at a high speed up to a predetermined angle (for example, + 50 ° to −50 °). In the operation of the third step, the air jet from the nozzle portion 20 gradually approaches the center portion from the predetermined front position toward the rear while moving at high speed in the left-right direction on the surface to be dried.

  Therefore, as shown in the movement locus M8 of FIG. 10B, the contact range E of the air jet flows toward the center G while performing periodic movement that reciprocates at high speed in the tangential direction of the tip of the surface to be dried F2. Since it moves gradually, a zigzag movement trajectory is drawn as shown in the figure.

  At time T13, the air pump 51 is temporarily stopped, and the nozzle unit 20 is moved to a rear predetermined position (for example, 50 mm forward). At time T13, the operation of the air pump 51 is resumed and the ejection of pressurized air is started.

  Then, in the fourth step from time T14 to time T15, while the nozzle portion 20 is slowly advanced from the rear predetermined position toward the center portion, the left and right angles of the nozzle portion 20 are simultaneously changed from the right predetermined angle to the left predetermined angle (for example, + 50 °). To -50 °) at high speed. The operation of the fourth step is that the air jet from the nozzle section 20 gradually moves closer to the center from a predetermined distance from the rear while moving at high speed in the left-right direction on the surface to be dried. come. Therefore, as shown in the movement locus M9 in FIG. 10B, the contact area E of the air jet flows toward the center G while performing periodic movement that reciprocates at high speed in the tangential direction of the rear end of the surface to be dried F2. Gradually move so that a zigzag movement trajectory is drawn.

  At time T15, the air pump 51 is stopped again, and the nozzle unit 20 is moved to a predetermined position ahead (for example, 150 mm forward). Then, at time T16, the operation of the air pump 51 is restarted and the ejection of pressurized air is started.

  Then, in the fifth step from time T16 to time T17, the nozzle unit 20 starts to retreat from a predetermined position in front, passes through the center, and slowly reaches a predetermined distance (for example, 50 mm forward) from the center. And retreat. At the same time, the left and right angles of the nozzle unit 20 are reciprocated at high speed from a predetermined right angle to a predetermined left angle (for example, + 50 ° to −50 °). The operation of the fifth step is as shown in the movement trajectory M10 of FIG. 10 (c), while the air jet from the nozzle unit 20 moves forward on the surface to be dried while moving at high speed in the left-right direction. Gradually moves backward from the predetermined position toward the center, and further passes through the center to gradually move to the predetermined position behind.

As described above, in the cleaning movement “wide”, the nozzle portion 20 is cleaned while being driven left and right in addition to the front-rear direction at the cleaning position, thereby widening the front-rear and left-right cleaning ranges. In addition, the range W2 that can be wetted by the cleaning mode “move” is wider in both the front-rear direction and the left-right direction than the range W1 that can be wetted by “wet cleaning”. Along with this, the ejection range of the pressurized air is expanded in proportion to the washing area to remove water droplets.

  As described above, when the cleaning range is changed depending on the cleaning mode, the area of the pressurized air ejection range is changed in proportion to the cleaning area. Also, even when the cleaning conditions such as the flow of water and water flow (flow rate, pressure) are changed, the range of water droplets will change, so the range of water droplets will be determined in advance by experiment and simulation. An air ejection range can be set. In other words, water droplets can be efficiently removed in a short time by jetting pressurized air over a narrow range when the narrow range is wet, and with a wide range when the wide range is wet.

  In the above, the case where the nozzle position is the reference cleaning point and the position is not adjusted has been described as an example. However, when the user operates the cleaning position adjustment switches 324 and 325 to change the cleaning center, the position is changed. According to the adjustment, the jet of pressurized air is also set in a range where the center is changed. By centering on the actual cleaning position, the water droplet removal effect by the pressurized air can be stably maintained high even if the cleaning position changes.

  It should be noted that, as shown in FIG. 11, the trajectory of the pressurized air may be folded back through a plurality of points so as to be substantially parallel to the outward path or may be configured as a curve.

  In the present embodiment, the butt cleaning, bidet cleaning and drying are configured with one nozzle, and the nozzle drive unit 52 is also shared, so the installation volume of the nozzle unit can be reduced and the number of parts can be reduced, thus saving space. And cost reduction can be realized.

  Furthermore, since the pressurized air for drying is ejected 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 51. 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.

  Further, in this embodiment, cleaning and drying are configured by a single cylinder and the nozzle driving unit 52 is shared, but this may be configured by independent nozzles and driving units.

  Furthermore, in the present embodiment, the nozzle is configured by a single nozzle hole, but a configuration in which pressurized air is ejected by a plurality of nozzle holes may be used, and a plurality of nozzles and nozzle drive units 52 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.

  Further, in the present embodiment, the entire nozzle is driven by the nozzle driving unit 52 as the moving unit, but the present invention is not limited to this, and only the air outlet 21 of the nozzle unit 20 or the periphery including the air outlet 21 It is good also as a structure which moves the contact range of a jet by changing only the member of this, or changing the angle by changing an angle, or providing the wind direction change part which changes the direction of a jet in front of an air nozzle Configuration etc. can be considered.

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.

  In this embodiment, the heater 44 is energized before the air fan 41 is operated at the start of the drying operation to increase the temperature of the heater 44 at a high speed. However, when the air fan 41 and the heater 44 are activated simultaneously, The temperature increase of the heater 44 may be increased by providing a soft start function that gradually increases the air flow rate when the air fan 41 is activated.

  Further, the area of the pressurized air ejection range may be arbitrarily selected from a plurality of preset values. This is a method in which the user selects a jetting range of pressurized air suitable for him / her, and for example, the user can select from five levels from “wide” to “narrow”. Efficient water droplet removal can be performed according to individual differences and cleaning conditions by selecting a jetting range of pressurized air based on empirical judgment from the water droplet removal state around the local area.

(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. 12 is a partial perspective view of the nozzle part and the swinging part of the pressurized air supply part in the sanitary washing device according to the second embodiment.

  12 includes a rotary shaft 83 that is integrally connected to the base 82 of the nozzle portion 81, a slider 85 that is rotatably supported around an axis 84 of the rotary shaft 83, and a rotary shaft. 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 front-rear drive function by the slider 85 is the same as that of the embodiment shown in FIG. 5, and the nut portion 60 is similarly configured.

  The internal configuration of the nozzle portion 81 has a cylindrical shape as in the embodiment shown in FIG. 5, and an air outlet 21 and a washing water outlet 22 are provided in the cylindrical circumferential direction near the tip, and pressurized air is provided inside. An air cavity (not shown) for air and a water cavity (not shown) for cleaning water are provided. The difference from the embodiment shown in FIG. 5 is that the base portion 82 of the nozzle portion 81 is integrally connected to the rotating shaft portion 83, and the nozzle portion 81 reciprocally swings in a fan shape around the rotating shaft portion 83. It is.

  In the above configuration, the air jet is driven left and right by controlling the forward / reverse rotation of the left and right drive motor 86 and rotating the nozzle portion 81 to a predetermined angle, so that the position of the air outlet 21 itself is changed to the left and right. This is done by moving to a predetermined position.

  FIG. 13 is a schematic cross-sectional view of the “cleaning” and “drying” operating states in the present embodiment. As shown in FIG. 13, the air jet 89 from the air outlet 21 is ejected while maintaining substantially perpendicular to the surface to be dried, so that 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.

FIG. 14 shows an ejection movement locus of the pressurized air in the present embodiment. As shown in FIG. 14, the contact range E of the pressurized air is a spiral shape in which the distance between adjacent movement trajectories from the outer edge portion of the surface to be dried F toward the approximate center of the surface to be dried F is substantially constant. The nozzle drive unit is controlled.

  As a result, the movement trajectory of the pressurized air for removing the adhering water droplets from the edge of the surface to be dried toward the approximate center of the surface to be dried has a short nozzle driving distance with little folding, and the movement locus is continuous. Thus, since the pressurized air is not stopped halfway, water droplets can be efficiently removed in a short time.

As mentioned above, although the sanitary washing apparatus of 1st Embodiment-2nd Embodiment of this invention was demonstrated, the drying function of this invention is not limited to the sanitary washing apparatus of 1st Embodiment-2nd Embodiment mentioned above. Absent.
For example, the notification unit that notifies the ejection operation is not limited to the notification unit shown in FIG. For example, the notification unit may be a graphic display showing the progress of the operation, or may be a sound or a means capable of notifying the user of vibration.

  In addition, it is possible to set and operate the surface to be dried corresponding to bidet cleaning in the same way as for the buttocks cleaning, and the drying after the user has instructed the bidet cleaning continuously after the buttocks cleaning is within the range wetted by both cleanings. In addition, the nozzle drive may be controlled as a jet trajectory of pressurized air suitable as a surface to be dried. As described above, combinations of the above-described embodiments are also included in the scope of the present invention.

  The sanitary washing device of the present invention enables the surface to be dried wet with washing water washed after stool to be efficiently dried by removing water droplets with pressurized air. -It can apply suitably for a use.

DESCRIPTION OF SYMBOLS 20 Nozzle part 20a Drying nozzle part 20b Washing nozzle part 21 Air outlet 22 Washing water outlet 30 Washing water supply part 50 Pressurized air supply part 52 Nozzle drive part 100 Sanitary washing apparatus 150 Control part 200 Main body part 400 Toilet seat 500 Toilet lid 600 toilet

Claims (8)

A main body placed behind the opening of the toilet having an opening for toilet;
A toilet seat that is placed in front of the main body on the opening of the toilet and has a seating surface on which a user is seated;
A washing water jet for ejecting washing water toward the user's local part, and an air jet for ejecting pressurized air toward the surface to be dried including the local part of the user and its peripheral part A cylindrical nozzle portion having,
A cleaning water supply unit for supplying the cleaning water to the cleaning water outlet;
A pressurized air supply unit for supplying the pressurized air to the air outlet;
A nozzle drive unit that drives the nozzle unit to scan the injection position of the pressurized air;
The cleaning water supply unit, the pressurized air supply unit, and at least a control unit that controls the operation of the nozzle drive unit,
The control unit controls the nozzle driving unit so as to change a range of a scanning trajectory of the pressurized air that scans the inside of the surface to be dried according to a jet range of the cleaning water that is changed by the user. Sanitary washing device to do. The sanitary washing device according to claim 1, wherein the control unit controls the nozzle driving unit so as to expand a range of a scanning locus of the pressurized air as the washing water has a stronger water flow. The nozzle drive unit includes: an advance / retreat drive unit that drives the nozzle unit to advance and retreat in an axial direction of the nozzle unit; and a rotation drive unit that rotationally drives the nozzle unit about the axis of the nozzle unit. Item 3. The sanitary washing device according to item 1 or 2. The nozzle drive unit includes an advancing / retreating drive unit that drives the nozzle unit to advance and retreat in the direction of the axis of the nozzle unit, and a tip of the nozzle unit within a plane that is substantially parallel to the seating surface. The sanitary washing device according to claim 1, further comprising a swing drive unit configured to swing in a lateral direction intersecting with the direction. The controller is configured such that the movement trajectory of the pressurized air that hits the surface to be dried reciprocates between an ejection start point and an ejection end point of the pressurized air, and an interval between adjacent forward paths in the movement trajectory. The sanitary washing device according to any one of claims 1 to 4, wherein the nozzle driving unit is controlled so that the value is substantially constant. The control unit is configured such that the movement trajectory of the pressurized air that hits the surface to be dried spirals from the periphery of the surface to be dried toward the center, and the distance between the adjacent movement trajectories is substantially constant. The sanitary washing device according to any one of claims 1 to 4, wherein the nozzle driving unit is controlled. The sanitary washing device according to any one of claims 1 to 6, further comprising a notification unit that notifies an operating state of the operation of ejecting the pressurized air. It has a hot air supply part that blows hot air to the local part of the user and its peripheral part,
The sanitary washing device according to any one of claims 1 to 7, wherein the warm air supply unit continuously blows the warm air for a predetermined time after the operation of ejecting the pressurized air.