JP5903655B2 - Sanitary washing device - Google Patents

Description

  The present invention relates to a sanitary washing device, and more particularly to a sanitary washing device having a washing nozzle for washing a toilet bowl.

  In the conventional sanitary washing apparatus, various methods for preventing filth from adhering to the toilet bowl are known.

  For example, a pressure reducing valve and a solenoid valve are connected in order from the water pipe side to the flow path connecting the water pipe and the pre-cleaning nozzle. When seating of the human body is detected by the seating sensor, the electromagnetic valve is opened and cleaning water is ejected from almost the entire circumference of the pre-cleaning nozzle. Thereby, the ball surface of the toilet bowl is wetted, and dirt is prevented from adhering to the toilet bowl (see, for example, Patent Document 1).

JP-A-7-189319

  In the conventional sanitary washing device, the water supply pressure of the water pipe acts on the closed electromagnetic valve. For this reason, a high feed water pressure acts on the pre-cleaning nozzle from when the electromagnetic valve is opened until the pressure is reduced by the pressure reducing valve. As a result, there is a possibility that the washing water spouts out from the pre-washing nozzle and the washing water jumps out of the toilet seat or the toilet bowl.

  On the other hand, when the position of the pre-cleaning nozzle is lowered, the position of the cleaning water ejected from the pre-cleaning nozzle is lowered. As a result, the wash water is spread only over a narrow and narrow area of the toilet bowl, and the wash water does not spread over a wide area of the toilet bowl. In particular, the rim at the top of the toilet bowl is one of the parts where dirt easily adheres. Wash water does not reach the high position of the toilet near this rim. For this reason, adhesion of the filth of the whole toilet bowl cannot be prevented.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a sanitary washing device capable of preventing adhesion of filth in a wide range of toilet bowls.

A sanitary washing device according to an aspect of the present invention is a sanitary washing device used in a toilet device including a toilet and a toilet seat, and discharges cleaning water toward a body to be cleaned seated on the toilet seat. A heat exchanger for heating the wash water, a first flow path having an upstream end to be connected to a water supply source, the downstream end connected to the first wash nozzle, and the wash water toward the toilet A second cleaning nozzle for discharging the toilet and cleaning the toilet, a second channel branched from the first channel and connected to the second cleaning nozzle, the first channel and the second channel A fixed orifice provided between the branch point of the first flow path and the heat exchanger; and a first vacuum breaker provided between the branch point of the first flow path and the second flow path and the fixed orifice. A second vacuum provided between the heat exchanger and the first cleaning nozzle. Comprising a Mubureka, a flow regulating valve for regulating the flow rate of the washing water flowing in the second flow path, and a control unit for controlling the operation of the flow control valve.

  The present invention has the above-described configuration, and has an effect that it is possible to provide a sanitary washing device capable of preventing the adhesion of filth in a wide range of a toilet bowl.

  The above object, other objects, features, and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments with reference to the accompanying drawings.

It is a perspective view which shows the sanitary washing apparatus which concerns on Embodiment 2 of this invention. It is a front view which shows the remote control apparatus of the sanitary washing apparatus of FIG. It is a schematic diagram which shows the structure of the sanitary washing apparatus of FIG. It is a longitudinal cross-sectional view which shows the sanitary washing apparatus of FIG. It is an expanded sectional view showing the 2nd washing nozzle of the sanitary washing device of Drawing 4, and its peripheral part. It is a longitudinal cross-sectional view which shows the sanitary washing apparatus of FIG. It is an expanded sectional view showing the 2nd washing nozzle of the sanitary washing device of Drawing 6, and its peripheral part. (A) is sectional drawing which shows the front-end | tip part of the 2nd washing nozzle of FIG. (B) is sectional drawing of the 2nd washing nozzle in C14-C14 of (a). (A) is a schematic diagram for demonstrating the definition of the ejection flow velocity and spreading width of a 2nd washing nozzle. (B) is a graph which shows the relationship between an ejection flow velocity and a breadth. It is a graph which shows the investigation result regarding the room seating time. It is a flowchart which shows an example of operation | movement in a sanitary washing apparatus. It is a front view which shows the flow volume adjustment valve of the sanitary washing apparatus of FIG. It is sectional drawing which shows the flow regulating valve of the closed state cut | disconnected along the BB line shown in FIG. It is sectional drawing which shows the flow regulating valve of the closed state cut | disconnected along the AA line shown in FIG. It is sectional drawing which shows the flow regulating valve of the open state cut | disconnected along the BB line shown in FIG. It is sectional drawing which shows the flow regulating valve of the open state cut | disconnected along the AA line shown in FIG. It is a schematic diagram which shows the structure of the sanitary washing apparatus which concerns on Embodiment 1 of this invention.

A sanitary washing apparatus according to an embodiment of the present invention is a sanitary washing apparatus used in a toilet apparatus including a toilet and a toilet seat, and discharges cleaning water toward an object to be cleaned seated on the toilet seat. A heat exchanger for heating the wash water, a first flow path having an upstream end to be connected to a water supply source, the downstream end connected to the first wash nozzle, and the wash water toward the toilet A second cleaning nozzle for discharging the toilet and cleaning the toilet, a second channel branched from the first channel and connected to the second cleaning nozzle, the first channel and the second channel A fixed orifice provided between the branch point of the first flow path and the heat exchanger; and a first vacuum breaker provided between the branch point of the first flow path and the second flow path and the fixed orifice. , A second vacuum provided between the heat exchanger and the first cleaning nozzle. Comprising a Mubureka, a flow regulating valve for regulating the flow rate of the washing water flowing in the second flow path, and a control unit for controlling the operation of the flow control valve. Here, “connected” includes both “directly connected” forms and “indirectly connected” forms. The “body to be cleaned” is exemplified by a human body.

  The control unit may be configured to control the flow rate adjustment valve so that the valve opening degree is increased from a certain valve opening degree when starting the cleaning of the toilet.

  The sanitary washing apparatus may further include a pressure reducing valve that is provided between the upstream end and the branch point of the second flow path in the first flow path and depressurizes wash water from the water supply source. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In the following description, the same or corresponding elements are denoted by the same reference symbols throughout all the drawings, and redundant description thereof is omitted.

(Embodiment 1)
FIG. 17 is a schematic diagram illustrating a configuration of the sanitary washing device according to the first embodiment.

  The sanitary washing device 100 is used in a toilet device 1000 (see FIG. 1) including a toilet bowl 700 and a toilet seat 400. The sanitary washing device 100 has first washing nozzles 1 and 2 that discharge washing water toward the body to be washed seated on the toilet seat 400, and an upstream end to be connected to the water supply source 201, and the downstream end is the first. The first flow paths 202 and 203 connected to the cleaning nozzles 1 and 2, the second cleaning nozzle 40 that discharges cleaning water toward the toilet bowl 700 and cleans the toilet bowl 700, and the first flow paths 1 and 2 branch off. The second flow paths 204 and 205 connected to the second cleaning nozzle 40, the flow rate adjusting valve 103 for adjusting the flow rate of the cleaning water flowing through the second flow paths 204 and 205, and the operation of the flow rate adjusting valve 103 are controlled. And a control unit 4 that performs. The other components of the sanitary washing device 100 are not particularly limited, and any known configuration can be adopted.

  When the object to be cleaned is cleaned in the sanitary cleaning device 100 having the above configuration, the cleaning water flows from the water supply source 201 to the first cleaning nozzles 1 and 2 through the first flow paths 202 and 203. The cleaning water is discharged from the first cleaning nozzles 1 and 2 to clean the object to be cleaned seated on the toilet seat 400.

  In addition, when cleaning the toilet bowl 700 is started, the cleaning water flows from the first flow paths 202 and 203 to the second nozzle 40 through the second flow paths 204 and 205. Here, the “open / close valve” is generally designed so that the operation amount is changed in a step shape between “open” and “closed”, and the valve opening is changed in a step shape accordingly. On the other hand, since the “flow rate adjusting valve” is designed to have a function of adjusting the flow rate, the valve opening does not change stepwise even if the operation amount changes stepwise. For this reason, the discharge amount of washing water increases as the valve opening increases. Therefore, even if the control unit 4 changes the operation amount stepwise so that the flow rate adjusting valve 103 reaches a predetermined valve opening, the valve opening of the flow rate adjusting valve 103 does not change stepwise. The amount of cleaning water discharged is small. For this reason, even if a high water pressure from the water supply source acts on the flow rate adjustment valve 103, the momentum ejected from the second washing nozzle 40 is suppressed, and the range in which the washing water is sprayed on the toilet 700 is narrow. Thereby, since the washing water does not jump out of the toilet bowl 700, the second washing nozzle 40 can be disposed higher in the toilet bowl 700.

  As the flow rate of the cleaning water increases, the spray range of the cleaning water gradually increases. For this reason, washing water reaches the vicinity of the upper end of the toilet bowl 700, and a water film is formed in a wide area of the toilet bowl 700. This prevents filth from adhering to the toilet bowl 700.

(Embodiment 2)
The second embodiment of the present invention exemplifies a mode in which the sanitary washing device of the first embodiment is applied to a sanitary washing device including a toilet seat.

<Toilet device>
Hereinafter, the main body 200 side of the sanitary washing device 100 will be described as the rear, and the front end side of the toilet seat 400 will be described as the front.

  FIG. 1 shows a toilet apparatus 1000 including a sanitary washing apparatus 100 according to the first embodiment.

  The toilet apparatus 1000 includes a toilet 700 and is installed in a toilet room. The sanitary washing device 100 is mounted on the toilet bowl 700.

  The sanitary washing device 100 includes a main body 200, a remote operation device 300, a toilet seat 400, a lid 500, and an entrance detection sensor 600.

  A toilet seat 400 and a lid 500 are attached to the main body 200 so as to be freely opened and closed. A seating sensor 610 is provided on the upper front portion of the main body 200. A toilet nozzle cover 40K, which will be described later, is provided at the lower front portion of the main body 200, and the toilet nozzle 40 is located behind the toilet nozzle cover 40K.

  As the seating sensor 610, for example, a reflective infrared sensor is used. The seating sensor 610 irradiates infrared rays onto the toilet seat 400 and detects infrared rays reflected from the human body seated on the toilet seat 400. When the seating sensor 610 detects infrared rays, it outputs a detection signal to the control unit 4 (FIG. 3) described later. It is determined by the control unit 4 that there is a user on the toilet seat 400.

  The remote operation device 300 is provided with a plurality of switches for operating the sanitary washing device 100. The remote control device 300 is attached to a place where a user sitting on the toilet seat 400 can operate, for example.

  The entrance detection sensor 600 is attached to an entrance of a toilet room or the like. As the room entry detection sensor 600, for example, a reflective infrared sensor is used. The entrance detection sensor 600 irradiates infrared rays toward the entrance of the toilet room and the like, and detects infrared rays reflected from the human body entering the entrance. When the entrance detection sensor 600 detects infrared rays, it outputs a detection signal to the control unit 4. The controller 4 determines that a user has entered the toilet room.

  The control unit 4 (FIG. 3) 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 600 and the seating sensor 610. Moreover, the control part 4 is comprised so that the flow volume adjustment valve 103 may be controlled so that it may become larger from a certain valve opening degree, when starting the washing | cleaning of the toilet bowl part 700 so that it may mention later.

<Remote control device>
FIG. 2 is a front view of the remote control device 300 of FIG.

  The remote operation device 300 is provided with a wide cleaning switch 305, a rhythm cleaning switch 306, water force setting switches 307 and 308, a move cleaning switch 309, and cleaning position setting switches 310 and 311 on the upper part of the controller main body 301. A stop switch 302, a buttocks cleaning switch 303, and a bidet cleaning switch 304 are provided below the controller main body 301.

  When the user operates each switch of the remote operation device 300, a signal corresponding to each switch is transmitted from the remote operation device 300 to the control unit 4 (FIG. 3). If the control part 4 receives, it will control the sanitary washing apparatus 100 according to each signal.

  For example, when the user operates the buttocks cleaning switch 303, a buttocks nozzle 1 (FIG. 3), which will be described later, moves and ejects cleaning water. Further, when the user operates the bidet cleaning switch 304, a bidet nozzle 2 described later moves and cleaning water is ejected. Further, when the user operates the stop switch 302, the ejection of the washing water is stopped, and the nozzles 1 and 2 are returned.

  FIG. 3 is a schematic diagram illustrating the configuration of the main body 200 of the sanitary washing device 100.

  The main body 200 includes a water supply structure and a control unit 4 that controls the water supply structure.

  The water supply structure includes a first flow path and a second flow path. The first flow path is a flow path for supplying cleaning water from the water pipe 201 that is a water supply source to the nozzle unit 20. The first flow path includes, for example, a human body washing water flow path 202 and a human body washing water flow path 203. The second channel is a channel that is branched from the first channel and supplies cleaning water to the toilet nozzle 40. The second flow path is composed of, for example, a branch pipe line 204 and a toilet flushing water flow path 205.

  That is, the water supply pipe 201 is connected to the human body washing water flow path 202 (front flow path) via the branch tap 5. The human body washing water flow path 202 is connected to the human body washing water flow path 203 (rear flow path) through the heat exchanger 12. Further, the branch conduit 204 branches from the human body washing water channel 202 between the pressure reducing valve 8 and the fixed orifice 9. Further, the branch pipe 204 is connected to the toilet flushing water flow path 205 through the first vacuum breaker 31.

  In the human body washing water flow path 202, a strainer 6, a water stop solenoid valve 7, a pressure reducing valve 8, a fixed orifice 9, a flow sensor 11 and a temperature sensor 13a are arranged in this order from the water pipe 201 side to the heat exchanger 12 side. Provided.

  The pressure reducing valve 8 is provided between the upstream end of the human body washing water flow path 202 and the branch point of the branch pipe 204. The pressure reducing valve 8 depressurizes washing water from the water pipe 201.

  The fixed orifice 9 is formed integrally with the first vacuum breaker 31.

  One end of the human body washing water channel 203 is connected to the heat exchanger 12, and the other end is connected to the nozzle unit 20. In the human body washing water flow path 203, a temperature sensor 13b, a positive displacement pump 14, a buffer tank 15, and a switching valve 16 are provided in this order from the heat exchanger 12 side toward the nozzle portion 20.

  The second vacuum breaker 61 is provided in the buffer tank 15 and is disposed at a position higher than the upper wall surface of the casing of the heat exchanger 12. This prevents the heat exchanger 12 from being heated in an empty state. Further, the high-temperature water from the heat exchanger 12 and the sewage from the washing water outlet of the nozzle unit 20 are prevented from flowing back upstream from the second vacuum breaker 61.

  The nozzle unit 20 includes a buttocks nozzle 1, a bidet nozzle 2 and a nozzle cleaning nozzle 3. The buttocks nozzle 1 and the bidet nozzle 2 discharge cleaning water toward the opening of the toilet bowl 700. The switching valve 16 branches into three pipes, and the nozzle 1, the bidet nozzle 2, and the nozzle cleaning nozzle 3 are connected to the ends of the pipes. The butt nozzle 1 and the bidet nozzle 2 are used for cleaning a user's local area. The nozzle cleaning nozzle 3 is used for cleaning a portion of the buttocks nozzle 1 and the bidet nozzle 2 protruding into the toilet bowl 700.

  The switching valve 16 includes a switching valve motor 16m. The switching valve motor 16m is controlled by the control unit 4, and the switching valve 16 opens and closes. The switching valve 16 switches in four directions, which opens the flow path to the pipe of the buttocks nozzle 1, opens the flow path to the pipe of the bidet nozzle 2, opens the flow path to the pipe of the nozzle 3 for nozzle cleaning, and closes the flow path.

  One end of the branch pipe 204 is connected to the human body washing water flow path 202 and the other end is connected to the first vacuum breaker 31.

  The 1st vacuum breaker 31 is arrange | positioned in the position above the washing water spout of the heat exchanger 12 and the toilet nozzle 40. FIG. This prevents high-temperature water from the heat exchanger 12 and sewage from the flush water outlet of the toilet nozzle 40 from flowing back upstream from the first vacuum breaker 31.

  The toilet flushing water flow path 205 has one end connected to the first vacuum breaker 31 and the other end connected to the toilet nozzle 40. The toilet flushing water flow path 205 is provided with a flow rate adjusting valve 103. The toilet nozzle 40 includes a toilet nozzle motor 40m, and the flow rate adjustment valve 103 includes a flow rate adjustment valve motor 103m. These motors 40m and 103m are controlled by the control unit 4, the toilet nozzle 40 moves, and the flow rate adjustment valve 103 opens and closes. The flow rate adjusting valve 103 has a function of adjusting the flow rate through the toilet flushing water channel 205.

  The control unit 4 receives the detection signal from the flow sensor 11, the temperature sensors 13a and 13b, the entrance detection sensor 600 (FIG. 1), the seating sensor 610 (FIG. 1), and the operation signal from the remote operation device 300 (FIG. 1). receive. Based on these signals, the control unit 4 controls the water stop solenoid valve 7, the toilet nozzle motor 40m, the flow rate adjustment valve motor 103m, the heat exchanger 12, the pump 14, and the switching valve motor 16m.

  Next, the flow of cleaning water in the main body 200 will be described.

  The washing water flows into the human body washing water channel 203 from the water pipe 201 via the branch tap 5. Then, dust, impurities, etc. contained in the washing water are removed by the strainer 6.

  When the water stop solenoid valve 7 is open, the wash water is decompressed to a constant pressure by the decompression valve 8. The washing water is further depressurized by the fixed orifice 9 to a pressure corresponding to the flow rate. That is, as the flow rate through the fixed orifice 9 increases, the pressure loss when passing through the fixed orifice 9 increases, and the pressure after passing through the fixed orifice 9 decreases.

  The flow rate of the cleaning water flowing through the human body cleaning water flow path 202 is measured by the flow sensor 11. This measured value is output from the flow sensor 11 to the control unit 4. Further, the temperature of the cleaning water flowing through the human body cleaning water flow path 202 is detected by the temperature sensor 13a. This detected value is output from the temperature sensor 13a to the control unit 4.

  The washing water is heated to a predetermined temperature by the heat exchanger 12. At this time, the control unit 4 controls the heat exchanger 12 based on the flow rate from the flow sensor 11 and the temperature from the temperature sensor 13a.

  The washing water is pulsated by the positive displacement pump 14 and sent out to the buffer tank 15. In the buffer tank 15, the temperature of the heated wash water is buffered, and the temperature unevenness of the wash water is suppressed. The total capacity of the heat exchanger 12 and the buffer tank 15 is preferably 15 cc to 30 cc, and more preferably 20 cc to 25 cc.

  When the switching valve 16 opens the flow path to one of the pipes of the nozzles 1, 2, and 3, the cleaning water flows into the pipe switched by the switching valve 16 and is discharged from the nozzles 1, 2, and 3. The switching of the switching valve 16 is controlled mainly based on the operation signal of the remote operation device 300. At this time, the flow rate adjustment valve 103 is closed.

  When the flow rate adjustment valve 103 is opened with the switching valve 16 closed, the wash water flows from the human body wash water flow path 202 through the branch conduit 204 to the toilet flush water flow path 205. The washing water passes through the flow rate adjustment valve 103 and is ejected from the toilet nozzle 40. The position of the toilet nozzle 40 is moved by a toilet nozzle motor 40m.

<Toilet nozzle>
[Constitution]
FIG. 4 is a longitudinal sectional view of the sanitary washing device 100 when the toilet nozzle 40 is accommodated. FIG. 5 is an enlarged cross-sectional view of the toilet nozzle 40 of FIG. 4 and its peripheral portion. FIG. 6 is a longitudinal sectional view of the sanitary washing device 100 when the toilet nozzle 40 is washing. FIG. 7 is an enlarged cross-sectional view of the toilet nozzle 40 of FIG. 6 and its peripheral part. FIG. 8A is a cross-sectional view showing the distal end portion of the toilet nozzle 40. FIG. 8B is a cross-sectional view of the toilet nozzle 40 cut along the line C14-C14 shown in FIG.

  The toilet nozzle 40 is moved by a toilet nozzle motor 40m. When the toilet nozzle 40 is accommodated, as shown in FIGS. 4 and 5, the toilet nozzle 40 is accommodated in the accommodation position in the toilet nozzle cover 40 </ b> K. Moreover, when the toilet nozzle 40 ejects washing water, as shown in FIGS. 6 and 7, the toilet nozzle 40 moves out of the toilet nozzle cover 40K and moves to the toilet cleaning position.

  The toilet nozzle cover 40 </ b> K is disposed below the main body 200. Inside the toilet nozzle cover 40K, above the upper end of the toilet 700, a lamp 50 made of an LED (light emitting diode) or the like is provided. The toilet nozzle cover 40 </ b> K protrudes downward from the upper end of the toilet 700 and covers the tip of the toilet nozzle 40 and the lamp 50. The toilet nozzle cover 40K is formed of a transparent resin. Thereby, when the lamp 50 emits light, the light is irradiated into the toilet 700 through the toilet nozzle cover 40K.

  The toilet nozzle cover 40K includes a shielding part 40ka. While the toilet nozzle 40 is moved to the storage position while jetting cleaning water, the shielding portion 40ka prevents the cleaning water from jumping out of the toilet 700. Thereby, control by the control part 4 becomes impossible temporarily, and the toilet nozzle 40 may stop in positions other than a predetermined | prescribed storage position and a toilet bowl washing position, spouting washing water. Even in such a case, it is possible to prevent the washing water from jumping out of the toilet bowl 700 and leaking to the floor surface by the shielding part 40ka.

  The rear end portion of the toilet nozzle main body 41 is fixed to the main body lower casing 200A via the rotating piece 43 and the toilet nozzle motor 40m. When the toilet nozzle motor 40m operates, the rotating piece 43 rotates with respect to the main body lower casing 200A, and the distal end portion of the toilet nozzle main body 41 moves with this rotation. A torsion spring 40 </ b> S is inserted into the rotating piece 43.

  The torsion spring 40S is fixed by the fixing portion 43a of the rotating piece 43 and the fixing groove 40Kb of the toilet nozzle cover 40K. Thereby, the torsion spring 40 </ b> S presses the toilet nozzle body 41 toward the nozzle storage position via the rotating piece 43. For this reason, even if there is backlash of the drive system between the toilet nozzle motor 40m and the rotating piece 43 and the backlash of the reduction gear when the reduction gear is used for the toilet nozzle motor 40m, The toilet nozzle body 41 is fixed at a predetermined storage position. That is, when the toilet nozzle main body 41 is manually moved to the storage position, the toilet nozzle main body 41 does not stop at the predetermined storage position and returns by the amount of play. On the other hand, if the toilet nozzle main body 41 is urged toward the nozzle storage side by the torsion spring 40S, the torsion spring 40S absorbs the backlash, so that the toilet nozzle main body 41 is stored in the predetermined storage even by manual operation. Can be fixed in position.

  The torque of the torsion spring 40S is set to be equal to or greater than the tension generated by the connection pipe 44. For this reason, even if the toilet nozzle main body 41 is pulled by the connecting pipe 44, the toilet nozzle main body 41 is pressed to the nozzle housing side with a force equal to or greater than the pulling force. For this reason, when the toilet nozzle main body 41 is moved by the toilet nozzle motor 40m, the position of the toilet nozzle main body 41 can be accurately set.

  The toilet nozzle 40 includes a toilet nozzle main body 41 and a jet forming member 42.

  The toilet nozzle body 41 has a cylindrical shape. The toilet nozzle body 41 has a rod-shaped jet forming member 42 inserted at the tip thereof. A step portion 41 d is formed on the inner surface of the toilet nozzle body 41. The inner diameter of the toilet nozzle body 41 is increased at the step 41d. The toilet nozzle main body 41 includes a small-diameter portion having a small diameter and a large-diameter portion having a large diameter, with a step portion 41d (FIG. 8A) as a boundary.

  One end of the rotating piece 43 is fixed to the rear end portion of the toilet nozzle main body 41. The other end of the rotating piece 43 is connected to a toilet nozzle motor 40m, and the toilet nozzle motor 40m is fixed to a main body lower casing 200A described later. When the toilet nozzle motor 40m operates, the distal end of the toilet nozzle body 41 rotates in the direction of arrow A shown in FIG. A connecting pipe 44 is connected to the rear end of the toilet nozzle main body 41.

  As shown in FIG. 8A, the jet forming member 42 includes an insertion shaft portion 42a, a blade member 42b, a large diameter portion 42c, an enlarged portion 42d, and a flange portion 42e.

  The insertion shaft portion 42 a has a rod shape and is inserted inside the toilet nozzle body 41. The outer diameter of the insertion shaft portion 42 a is smaller than the inner diameter of the toilet nozzle main body portion 41, and a gap is formed between the outer peripheral surface of the insertion shaft portion 42 a and the inner peripheral surface of the toilet nozzle main body portion 41. This gap becomes the washing water flow path 41s. The insertion shaft portion 42a has three blade members 42b on the outer peripheral surface thereof.

  As shown in FIGS. 8A and 8B, the blade member 42b has a flat plate shape. The blade member 42b extends in the radial direction from the insertion shaft portion 42a, and the length from the center of the insertion shaft portion 42a to the tip of the blade member 42b is larger than the small diameter portion of the toilet nozzle body portion 41 and smaller than the large diameter portion. For this reason, when the jet flow forming member 42 is inserted into the toilet nozzle main body 41, the stepped portion 41d and the blade member 42b come into contact with each other. At this time, the blade member 42 b functions as a spacer between the jet forming member 42 and the toilet nozzle main body 41. The jet forming member 42 is positioned inside the toilet nozzle main body 41.

  The large-diameter portion 42c is provided on the distal end side of the insertion shaft portion 42a. The diameter of the large diameter portion 42c gradually increases from the diameter of the insertion shaft portion 42a. The large-diameter portion 42c forms a curved surface that gently spreads from the insertion shaft portion 42a toward the enlarged portion 42d. Since the outer diameter of the large diameter portion 42 c is smaller than the inner diameter of the toilet nozzle main body 41, the large diameter portion 42 c is inserted into the toilet nozzle main body 41. A gap between the outer peripheral surface of the large-diameter portion 42c and the inner peripheral surface of the toilet nozzle body 41 communicates with the washing water channel 41s. This gap is narrower than the flow path 41s and further narrows toward the enlarged portion 42d. For this reason, the wash water flowing in from the flow path 41s is accelerated in this gap. Therefore, this gap forms an acceleration channel 41t. Further, since the cleaning water that has passed through the acceleration flow path 41t of the cleaning water is discharged from the tip opening 41h, an annular discharge port is formed here.

  When the diameter of the large diameter portion 42c is set to 4 mm, the channel width of the acceleration channel 41t is set to about 0.3 mm, and the cleaning flow rate is set to 1 L / min, the speed at which the cleaning water is ejected from the toilet nozzle 40 is 4 m / sec. Thereby, the washing water can spread uniformly on the ball surface of the toilet bowl 700.

  The enlarged portion 42d is provided on the distal end side of the large diameter portion 42c. The diameter of the enlarged portion 42d gradually increases from the diameter of the large diameter portion 42c. The enlarged portion 42d forms a curved surface that gently spreads from the large diameter portion 42c toward the flange portion 42e. The enlarged portion 42d is opposed to the annular discharge port with an interval, and forms a gently curved surface that spreads radially from the center.

  The flange portion 42e has a disk shape and is provided on the distal end side of the large diameter portion 42c. The outer diameter of the flange part 42e is larger than the outer diameter of the toilet nozzle body 41. The flange part 42e is located outside the toilet nozzle body part 41.

[Toilet nozzle movement]
When the toilet nozzle 40 is in the storage position, the toilet nozzle 40 is disposed in the toilet nozzle cover 40K. The front end portion of the toilet nozzle 40 is located below the upper end of the toilet bowl 700 and is inclined downward toward the center of the toilet bowl 700.

  When the toilet nozzle 40 moves from the storage position to the toilet cleaning position, the tip of the toilet nozzle 40 moves in the direction indicated by the arrow A in FIG. The toilet nozzle 40 protrudes out of the toilet nozzle cover 40K and moves to the toilet cleaning position exposed in the internal space of the toilet 700.

  When the cleaning water is supplied from the connecting pipe 44 to the toilet nozzle 40, the cleaning water passes through the flow path 41s and is accelerated to the set flow velocity in the acceleration flow path 41t as shown in FIG. The washing water is discharged from the annular discharge port and changes the direction from the lower side to the outer side in the radial direction along the gentle aspect of the enlarged portion 42d. The washing water spreads over the entire circumference of the flange portion 42e and is ejected radially from the flange portion end 42f.

<Flow control valve>
[Constitution]
FIG. 12 is an external front view of the flow rate adjusting valve 103 having a flow rate adjusting function. 13 is a cross-sectional view taken along the line BB shown in FIG. 12 when the flow regulating valve 103 is in a fully closed state. 14 is a cross-sectional view taken along the line AA shown in FIG. 12 when the flow regulating valve 103 is in a fully closed state. 15 is a cross-sectional view taken along the line BB shown in FIG. 12 when the flow regulating valve 103 is in a fully opened state. FIG. 16 is a cross-sectional view taken along the line AA shown in FIG. 12 when the flow rate adjustment valve 103 is fully open.

  The flow rate adjusting valve 103 is a valve that adjusts the flow rate of the wash water flowing through the toilet flushing water flow path 205 by adjusting the valve opening degree. The flow rate adjustment valve 103 includes a valve body 91 and a valve body 95.

  The valve body 91 has a cylindrical shape and includes an internal space, an outflow path (third flow path) 93, and an inflow path (fourth flow path) 92. The internal space has a cylindrical shape, and one end is open and the other end is closed. The inflow path 92 is provided in the lower part of the valve body 91 and opens to the other end of the internal space. The outflow passage 93 opens on the inner peripheral surface of the internal space. The axis of the valve body 91 and the axis of the outflow passage 93 are substantially orthogonal.

  The valve body 95 is rotatably inserted into the valve body 91. The valve body 95 has a rotating shaft 99 and an internal flow path 94.

  The rotating shaft 99 is provided at the base end of the valve body 95. The rotating shaft 99 faces the inner peripheral surface of the valve body 91 and is connected to the flow rate adjusting valve motor 103m through a hole 105 having an O-shaped cross section.

  The internal flow path 94 includes an inlet portion (one port) and an outlet portion (the other port). The inlet portion opens at the distal end surface of the valve body 95 and faces the inflow path 92 of the valve body 91. The outlet portion 96 communicates with the flow path 94 and extends in the radial direction. The outlet portion 96 opens at a position corresponding to the opening of the outflow passage 93 of the valve body 91 in the axial direction of the valve body 95. That is, when the valve body 95 rotates with respect to the valve body 91, the outlet portion 96 is provided at a position communicating with the outflow passage 93 of the valve body 91. When the outlet 96 faces the outflow path 93, the flow path 94 communicates with the inflow path 92 and the outflow path 93. When the outlet portion 96 is at a position other than the position facing the outflow path 93, the flow path 94 is blocked from the inflow path 92 and the outflow path 93.

  A sliding contact surface 97 and a seal mechanism are provided on the outer peripheral surface of the valve body 95. The sliding contact surface 97 contacts along the inner peripheral surface of the valve body 91. An outlet portion 96 of the flow path 94 is provided on the sliding contact surface 97.

  The groove portion 101 and the groove portion 102 and the elastic seal members 98 and 108 accommodated in them function as a seal mechanism. This sealing mechanism seals between the inner peripheral surface of the valve body 91 and the outer peripheral surface of the valve body 95 such that the valve body 95 is rotatable with respect to the valve body 91. One seal mechanism (the groove portion 102 and the elastic seal member 108) is provided at a portion between the other end in the axial direction of the internal space of the valve body 91 and the opening of the outflow passage 93. Another seal mechanism (the groove portion 101 and the elastic seal member 98) is provided at a site between the opening of the outflow passage 93 and one end in the axial direction of the internal space of the valve body 91. These sealing mechanisms seal the gap between the inner circumferential surface of the internal space and the outer circumferential surface of the valve body 95 over the entire circumference of the gap.

  That is, the two groove portions 101 and the groove portion 102 are provided on the sliding contact surface 97, and the outlet portion 96 is disposed between the two groove portions 101 and 102. The groove portion 101 and the groove portion 102 extend in the circumferential direction and have a ring shape. Elastic seal members 98 and 108 are fitted into the grooves 101 and 102.

  The elastic seal members 98 and 108 are interposed in the gap so that the washing water from the inflow path 92 does not leak through the gap between the valve body 91 and the valve body 95 to the outside of the valve body 91. The elastic seal members 98 and 108 are rubber rings having an X-shaped cross section. The elastic seal members 98 and 108 form two seal bands that are in close contact with the groove portion 101 of the valve body 95 and the inner surface of the valve body 91, respectively. That is, the single elastic seal members 98 and 108 can substantially perform a double seal, and a reliable leak prevention effect can be obtained.

  Moreover, unlike the volumetric compression deformation that crushes the round cross section like a seal by an O-ring, the elastic seal members 98 and 108 are seals by bending deformation that pushes the X-shaped cross section. For this reason, even in the case of the same seal crushing force, the force required for deformation is much smaller than that of the O-ring. That is, the contact sliding frictional force between the elastic seal members 98 and 108 and the valve body 91 and the groove portions 101 and 102 is reduced. The torque required for rotationally driving the valve body 95 is drastically reduced, and there is no inconvenience such as being stuck and difficult to operate. Since the valve body 95 can be driven lightly and smoothly stably for a long period of time, and the flow rate adjusting valve motor 103m can be reduced in size and torque, the flow rate adjusting valve 103 and the sanitary washing device 100 can be reduced in size and cost.

  The flow rate adjusting valve motor 103m is a driving means that can rotate forward and backward, and for example, a stepping motor is used. The flow rate adjusting valve motor 103m includes an output shaft 104, a mounting flange 106, and a mounting boss 107.

  The output shaft 104 has an O-shaped cross-sectional shape and is inserted into the hole 105 in the rotary shaft portion 99 of the valve body 95. As a result, the output shaft 104 is connected to the rotating shaft portion 99, and the flow rate adjusting valve motor 103 m is fixed to the valve body 95.

  The mounting flange 106 and the mounting boss 107 are connected, and the flow rate adjusting valve motor 103 m is fixed to the valve body 91. The diameter of the mounting flange 106 is larger than the diameter of the mounting boss 107 of the valve body 91. For this reason, a mounting gap is formed between the mounting flange 106 and the mounting boss 107. Due to this mounting clearance, the eccentricity of the shaft centers of the valve body 91 and the valve body 95 is absorbed. Further, the height dimension of the mounting boss 107 of the valve body 91 is larger than the plate thickness of the mounting flange 106 of the flow rate adjusting valve motor 103m. For this reason, even after the flow rate adjusting valve motor 103m is tightened with a mounting screw (not shown), it has a degree of freedom of movement that compensates for eccentricity within the range of the mounting clearance described above.

[Operation of flow control valve]
The valve body 95 is rotated with respect to the valve body 91 by the flow rate adjusting valve motor 103m. When the outlet portion 96 overlaps the outflow passage 93, the inflow passage 92, the flow path 94, the outlet portion 96, and the outflow passage 93 communicate with each other. Accordingly, the wash water flows from the inflow path 92 through the flow path 94, the outlet portion 96, and the outflow path 93 through the toilet flushing water flow path 205.

  Depending on the rotation angle of the valve body 95, the relative position of the outlet portion 96 and the outflow passage 93 changes. The overlapping area of the outlet part 96 and the outflow passage 93, that is, the valve opening degree of the flow rate adjusting valve 103 is variable. Thereby, the cross-sectional area in the toilet bowl washing water flow path 205 changes, and the flow volume of the washing water which flows into the toilet nozzle 40 through the toilet bowl washing water flow path 205 is varied.

  Further, since each of the inflow path 92 and the outflow path 93 is one, the water pressure from the water pipe 201 acts on the inflow path 92 when the flow rate adjusting valve 103 shown in FIGS. 13 and 14 is closed. Even so, the valve body 95 is pressed against the outflow passage 93 side. This is because if the water pressure acts on the inflow path 92, the outflow path 93 side that is open to the atmosphere and is atmospheric pressure becomes the low pressure part, and the opposite side becomes the high pressure part 110. The valve body 95 is pressed toward the outflow path 93 so that even if there is some clearance that is a gap between the inner diameter of the valve body 91 and the outer diameter of the valve body 95, internal leakage from the inflow path 92 to the outflow path 93 is caused. Can be a small amount of leakage that is practically inconvenient.

  Moreover, it is not necessary to provide the valve body 91 and the valve body 95 or the sliding contact surface 97 with an elastic material such as rubber that prevents this internal leakage. Such an elastic material does not increase the driving torque of the flow rate adjusting valve motor 103m. Moreover, the valve body 91 and the valve body 95 can be produced at low cost with general molding accuracy such as injection molding resin that does not require particularly high accuracy.

  Further, since the required drive torque can be reduced, the reduction ratio of the reduction gear (not shown) of the flow rate adjusting valve motor 103m, which is the drive means, can be reduced. Thereby, the responsiveness of switching and flow rate adjustment can be improved. The position of the outlet portion 96 of the valve body 95 when the flow rate adjusting valve 103 is closed is set to about 20 degrees to 50 degrees as shown in FIG. By setting it to a small operating angle, the operation response time until the toilet cleaning is started by an instruction from the control unit 4 can be made faster.

  Further, the flow rate adjusting valve 103 has a so-called flow rate adjusting function in which the flow rate can be arbitrarily changed by the rotation angle of the valve body 95 by the flow rate adjusting valve motor 103m. For this reason, as described later, the setting of the valve opening at the time of toilet flushing can be adjusted and set according to the size of the toilet bowl 700, and a toilet flushing jet suitable for the size and shape of the toilet bowl can be realized.

  FIG. 14A and FIG. 14B are diagrams showing the relationship between the jetting flow velocity of the wash water jetted from the toilet nozzle 40 and the spreading width. In addition, the vertical axis | shaft of FIG.14 (b) shows the breadth of washing water: WW [mm], and a horizontal axis shows the jet flow velocity of washing water: WV [m / s].

  As shown to Fig.14 (a), the toilet nozzle 40 is arrange | positioned in the position of height: 100 from a floor surface so that an axial center may become a perpendicular direction. Wash water is ejected from the tip of the toilet nozzle 40 in a substantially horizontal direction at a flow velocity of WV [m / s]. At this time, the washing water spreads in a substantially circular shape around the toilet nozzle 40 and falls to the floor surface. The spreading width of the washing water on the floor surface is WW [mm].

  As shown in FIG. 14 (b), when the washing water jet velocity: WW is 2 m / s, the spreading width: WW is 200 mm. Moreover, when the jet flow velocity of washing water is 10 m / s, the spreading width: WW is 1000 mm. As the washing water ejection flow rate: WW increases, the width of expansion: WW increases approximately proportionally.

  As a result, the washing water spreading width: WW can be adjusted by changing the washing water ejection flow rate: WW. For this reason, the flow rate of the wash water ejected from the toilet nozzle 40 is determined by adjusting the spread width of wash water: WW to the size of the toilet 700 to which the sanitary washing device 100 is attached. Further, the flow rate per unit time supplied to the toilet nozzle 40 is set so that the flow rate of the washing water from the toilet nozzle 40 becomes the determined flow rate. The flow rate per unit time is determined by the valve opening degree of the flow rate adjustment valve 103.

  For example, since the length in the longitudinal direction of a general toilet is about 320 to 380 mm, the flow rate of the flow rate adjustment valve 103 is set so that the washing water ejection flow rate: WV is in the range of 4 m / s to 8 m / s. More preferably, the valve opening is set.

  In this way, when the valve opening degree of the flow rate adjusting valve 103 corresponding to the spread width: WW is set, the wash water spreads over a wide area on the inner surface of the toilet bowl 700 and is scattered to the outside of the toilet bowl 700. Can be prevented. Furthermore, it is possible to prevent the cleaning water from greatly splashing on the inner surface of the toilet 700.

[Rotating speed of valve body in flow control valve]
Toilet bowl pre-cleaning is performed to prevent filth discharged from the user from adhering to the toilet bowl 700. Therefore, it is preferable that toilet pre-washing is performed before the user enters the toilet room and sits down. This time was determined by the following survey results, for example.

  FIG. 15 is a diagram showing the results of investigation into the room sitting time. The horizontal axis indicates the time (seconds) from when the user enters the toilet room until he / she sits, and the vertical axis indicates the cumulative percentage (%) of the user.

  As a result of the investigation, it was found that it took more than 6 seconds for 90% or more of the users to sit on the toilet seat 400 after entering the toilet room.

  Thus, the toilet pre-washing is started and terminated within at least 6 seconds after the user enters the toilet room. Accordingly, the toilet nozzle 40 can sufficiently wet the inner surface of the toilet 700 before the user is seated and discharges the filth. Moreover, it is possible to prevent the toilet nozzle 40 from being contaminated by user's filth.

  Therefore, it is necessary to stop the washing water ejected from the toilet nozzle 40 within 6 seconds after the user enters the room. For this reason, the rotational speed of the toilet nozzle motor 40m and the like are set so that the valve body 95 rotates so that the time from the opening of the flow rate adjustment valve to the closing thereof is, for example, within 6 seconds.

<Operation in sanitary washing device>
FIG. 11 is a flowchart illustrating an example of the operation in the sanitary washing device 100.

  The entrance detection sensor 600 detects whether or not the user enters the toilet room (step S1).

  While the user's entry is not detected by the entry detection sensor 600 (step S1: NO), as shown in FIGS. 4 and 5, the toilet nozzle 40 is disposed at the accommodation position in the toilet nozzle cover 40K.

  When the user enters the toilet room, the entrance detection sensor 600 detects the user (step S1). The entrance detection sensor 600 transmits a detection signal to the control unit 4. Thereby, the control part 4 starts toilet bowl pre-cleaning, and controls the lamp | ramp 50, the toilet nozzle motor 40m, the switching valve motor 16m, and the flow regulating valve motor 103m.

  The lamp 50 is turned on (step S2). Thereby, a user understands that toilet bowl pre-cleaning is carried out.

  When the toilet nozzle motor 40m operates, the tip of the toilet nozzle 40 moves in the direction indicated by the arrow A in FIG. 5 (step S3). Thereby, as shown in FIG. 6 and FIG. 7, the toilet nozzle 40 protrudes out of the toilet nozzle cover 40K. Then, the toilet nozzle 40 moves to the toilet cleaning position exposed in the internal space of the toilet 700.

  After the toilet nozzle 40 moves to the toilet cleaning position, the water stop solenoid valve 7 (FIG. 3) is opened, the flow rate adjusting valve motor 103m (FIG. 3) is driven, and the flow rate adjusting valve 103 is opened (step S4). Thereby, the wash water from the water supply pipe 201 flows into the human body wash water flow path 202. Here, the washing water is depressurized by the pressure reducing valve 8. Thereby, since the water pressure which flows into the toilet nozzle 40 falls, the speed of the wash water which ejects from the toilet nozzle 40 becomes small. This prevents the wash water from jumping out of the toilet bowl 700.

  Further, the wash water flows from the human body wash water flow path 202 into the branch pipe 204, the toilet bowl wash water flow path 205 and the connection pipe 44. Wash water is ejected radially from the toilet nozzle 40.

  The flow rate adjustment valve 103 shifts the valve opening degree from the throttle state to the open state. The valve opening increases substantially proportionally with time. For this reason, the opening degree of the flow adjustment valve 103 is small at the initial stage of operation. For this reason, even if a high water pressure from the water supply pipe 201 acts on the flow rate adjustment valve 103, the amount of washing water ejected from the toilet nozzle 40 is small. Therefore, the wash water ejected from the toilet nozzle 40 is prevented from jumping out of the toilet 700. Further, even if air is mixed in the flow paths 202, 204, 205, 44, when the air is discharged from the toilet nozzle 40, the air is prevented from blowing off the washing water. Therefore, the wash water does not jump out of the toilet bowl 40 from the toilet nozzle 40.

  And the opening degree of the flow regulating valve 103 is maximized. As described above, the maximum opening of the flow rate adjusting valve 103 is determined according to the size of the toilet from the relationship between the spreading width of the wash water: WW [mm] and the ejection flow velocity: WV [m / s]. As shown in FIG. 6, the wash water is discharged radially in a direction substantially perpendicular to the axis of the toilet nozzle 40. As a result, the wash water is ejected over a wide area on the inner surface centering on the waste outlet 700D of the toilet bowl 700. The washing water wets the inner surface of the toilet 700 and forms a water film uniformly there. This water film prevents filth from adhering to the inner surface of the toilet 700.

  Again, the opening degree of the flow rate adjusting valve 103 decreases in proportion to the time.

  While the toilet pre-cleaning is performed in this way, the control unit 4 determines whether or not a predetermined time (for example, 6 seconds) has elapsed since the user entered the toilet room (step S5). When the predetermined time has not elapsed (step S5: NO), the control unit 4 determines whether or not the stop switch 302 (FIG. 2) has been pressed by the user (step S6). When the stop switch 302 is not pressed (step S6: NO), the control unit 4 determines whether the user is seated on the toilet seat 400 (FIG. 1) based on the output signal of the seating sensor 610 (FIG. 1). Is determined (step S7). When the user is not seated on the toilet seat 400 (step S7: NO), the controller 4 returns to the process of step S5.

  On the other hand, when the predetermined time has elapsed (step S5: YES), when the stop switch 302 is operated (step S6: YES), when the user is seated (step S7), the toilet pre-washing is finished. That is, the flow rate adjustment valve 103 is closed (step S8), and the ejection of washing water from the toilet nozzle 40 is stopped. Further, the toilet nozzle 40 returns to the storage position, and the movement stops (step S9). Furthermore, the lamp 50 is turned off, and the user is notified of the end of toilet pre-washing.

<Effect>
According to the sanitary washing device 100 having the above-described configuration, the toilet pre-washing is completed when a predetermined time elapses after the user enters the toilet room. It is possible to sufficiently wet the inner surface of the toilet bowl 700 before the user is seated and to reliably prevent the cleaning water ejected from the toilet nozzle 40 from adhering to the user.

  Further, when the toilet bowl cleaning is started, the flow rate adjustment valve 103 shifts the valve opening degree from the throttle state to the open state. The flow rate adjusting valve 103 does not open instantaneously from closed to open like an electromagnetic valve, and gradually opens to reach a predetermined flow rate while the water pressure in the toilet nozzle 40 gradually increases. For this reason, the high water pressure of the water supply pipe 201 does not act on the toilet nozzle 40 at the moment when it opens like a solenoid valve, and the jet flow does not jump out of the toilet bowl, and the wash water jets stably from the toilet nozzle 40.

  Furthermore, a pressure reducing valve 8 for reducing the pressure of the cleaning water supplied from the water pipe 201 is provided upstream of the toilet cleaning water flow path 205. Thereby, while the flow regulating valve 103 is gradually opened, the pressure of the washing water acting on the toilet flushing water flow path 205 and the toilet nozzle 40 is kept low. For this reason, the jet from the toilet nozzle 40 can be stabilized more.

  Further, by using the stepping motor for the flow rate adjusting valve motor 103m, the rotational speed of the valve body 95 and the valve opening degree of the flow rate adjusting valve 103 are accurately controlled. For this reason, the rotational speed of the valve body 95 is controlled, and the toilet pre-washing is completed within a predetermined time from the user's entry to the seating. Thereby, the problem that the washing water from the toilet nozzle 40 adheres to a user is prevented. Further, the range in which the wash water is sprayed from the toilet nozzle 40 can be adjusted by the opening degree of the flow rate adjusting valve 103. For this reason, according to the magnitude | size of the toilet bowl 700, the spraying range of the wash water from the toilet nozzle 40 can be adjusted. In addition, the spray range of the wash water from the toilet nozzle 40 can be adjusted on the rim of the toilet 700. Thereby, the wash water from the toilet nozzle 40 does not jump out of the toilet 700 and is spread over a wide area of the toilet 700.

  Furthermore, the water stop solenoid valve 7 for switching the supply state of the cleaning water supplied from the water pipe 201 is provided upstream of the pressure reducing valve 8. Thereby, when a user does not use the sanitary washing apparatus 100, the water stop solenoid valve 7 is closed. For this reason, when the sanitary washing apparatus 100 is not used, it is possible to prevent unnecessary water pressure load from acting on the pressure reducing valve 8 and the heat exchanger 12. Therefore, the sanitary washing device 100 can be used with confidence over a long period of time.

  Further, when the user presses the stop switch 302 or the user sits on the toilet seat 400, the toilet pre-washing is finished. Therefore, even when the user is seated on the toilet seat 400 within the predetermined time, it is possible to prevent the washing water ejected from the toilet nozzle 40 from adhering to the user.

  Further, by using the vertical flow rate adjusting valve 103, the torque for rotating the valve body 95 of the flow rate adjusting valve 103 can be reduced. Therefore, the responsiveness when the flow rate adjusting valve 103 rotates is good, and the valve opening can be adjusted more accurately. For this reason, the washing water from the toilet nozzle 40 does not jump out of the toilet bowl 700 and can be set in a wide range near the rim of the toilet bowl 700. Thereby, a water film is formed in the wide range of the toilet bowl 700, and adhesion of filth is prevented.

<Modification>
In the above embodiment, a stepping motor is used as the flow rate adjusting valve motor 103m. On the other hand, a servo motor or the like can be used as the flow rate adjusting valve motor 103m, and a small DC geared motor or an AC motor can also be used.

  Moreover, in the said embodiment, after the toilet nozzle 40 moved to the toilet bowl washing | cleaning position in FIG.16 S3, ejection of the wash water started in step S4. On the other hand, the flushing of the washing water may start at the same time or before the toilet nozzle 40 moves to the toilet cleaning position. In particular, the flushing of the washing water may be started at the same time as the toilet nozzle 40 starts to move from the storage position. In this case, washing water comes out of the toilet nozzle 40 while the toilet nozzle 40 moves from the storage position to the toilet cleaning position. However, at the initial stage of toilet pre-washing, the valve opening degree of the flow rate adjusting valve 103 is small, and there is little washing water coming out of the toilet nozzle 40. For this reason, the washing water does not jump out of the toilet bowl 700. Further, the flush water ejection start time from the toilet nozzle 40 is advanced, and the end time of the toilet pre-cleaning is also advanced. Therefore, the user can use the toilet seat and the toilet bowl as soon as possible. In addition, the toilet pre-cleaning can be terminated before the user is seated, and contamination of the toilet nozzle 40 can be more reliably prevented.

  Further, when the user's entry is detected in step S2 of FIG. 16, the toilet nozzle 40 has moved to the toilet cleaning position. On the other hand, you may make the toilet nozzle 40 wait in advance in a toilet bowl washing position. In this case, since the toilet pre-cleaning can be started quickly, a sufficient amount of cleaning water can be supplied to the toilet 700. Thereby, it can prevent more reliably that filth adheres to toilet bowl 700. FIG. When the toilet nozzle 40 is made to wait in advance at the toilet cleaning position, for example, after the user has finished using the toilet apparatus 1000, the toilet nozzle 40 may be moved to the toilet cleaning position when a predetermined time has elapsed. Good.

  Furthermore, in the said embodiment, when flushing water is ejected from the toilet nozzle 40, the nozzle part 20 (FIG. 3) is controlled by controlling the switching valve motor 16m of the switching valve 16 to the nozzle part 20 which is a human body washing nozzle. ) May be stopped. In this case, since a sufficient amount of wash water can be supplied to the toilet nozzle 40, the toilet bowl 700 can be sufficiently wetted with the wash water. As a result, it is possible to sufficiently prevent filth from adhering to the toilet bowl 700.

  Moreover, in the said embodiment, toilet bowl pre-washing was complete | finished by pressing down of the stop switch 302 or a user's seating within predetermined time. In addition to or instead of this, when an external force is applied to the toilet nozzle 40, the toilet pre-cleaning may be terminated. In this case, since the toilet nozzle 40 moves to the storage position inside the toilet nozzle cover 40K, an overload does not act on the toilet nozzle 40 against an external force.

Further, in the second embodiment, a vertical flow rate adjusting valve is used as the flow rate adjusting valve 103. On the other hand, a disk-type flow path regulating valve can be used as the flow regulating valve 103. In the above embodiment, the sanitary washing device 100 is disposed on the toilet bowl 700 and is mainly used for washing a human body. . The sanitary washing apparatus 100 is used not only for washing the face, head, hands, and feet, for washing animals such as pets, or for washing other than living things.

  Further, in the second embodiment, the groove portions 101 and 102 and the elastic seal members 98 and 108 provided on the outer peripheral surface of the valve body 95 function as a seal mechanism. On the other hand, the groove portions 101 and 102 and the elastic seal members 98 and 108 may be provided on the inner peripheral surface of the valve body 91.

  In the second embodiment, the outflow path 93 is the third flow path and the inflow path 92 is the fourth flow path. On the other hand, the outflow path 93 can be a fourth flow path and the inflow path 92 can be a third flow path.

  Further, all the above embodiments may be combined with each other as long as they do not exclude each other.

  From the foregoing description, many modifications and other embodiments of the present invention are obvious to one skilled in the art. Accordingly, the foregoing description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The details of the structure and / or function may be substantially changed without departing from the spirit of the invention.

  The sanitary washing device of the present invention is useful as a sanitary washing device or the like that can prevent adhesion of filth in a wide range of toilet bowls.

1 Wet nozzle (first cleaning nozzle)
2 Bide nozzle (first cleaning nozzle)
4 control unit 8 pressure reducing valve 40 toilet nozzle (second cleaning nozzle)
91 Valve body 92 Inflow passage (fourth flow passage)
93 Outflow path (third flow path)
94 channel (internal channel)
95 Valve body 96 Outlet portion 97 Sliding contact surface 98 Elastic seal member (seal mechanism)
99 Rotating shaft 100 Sanitary washing device 101 Groove (seal mechanism)
102 Groove (seal mechanism)
103 Flow Control Valve 108 Elastic Seal Member (Seal Mechanism)
201 Water supply piping (water supply source)
202 Human body washing water channel (first channel)
203 human body washing water channel (first channel)
204 Branch pipe (second flow path)
205 Toilet wash water channel (second channel)
700 Toilet bowl 400 Toilet seat 1000 Toilet device

Claims (2)

A sanitary washing device used in a toilet device including a toilet and a toilet seat,
A first cleaning nozzle that discharges cleaning water toward an object to be cleaned seated on the toilet seat;
An upstream end to be connected to a water supply source, a pressure reducing valve for depressurizing washing water from the water supply source, a fixed orifice for further depressurizing washing water from the pressure reducing valve, and heating the washing water from the fixed orifice A first flow path having a downstream end connected to the first cleaning nozzle,
A second cleaning nozzle for discharging cleaning water toward the toilet and cleaning the toilet;
A second flow path branched from the first flow path between the pressure reducing valve and the fixed orifice and connected to the second cleaning nozzle;
A first vacuum breaker provided at a position above the washing water outlet of the heat exchanger and the second washing nozzle;
A second vacuum breaker provided between the heat exchanger and the first cleaning nozzle;
A flow rate adjusting valve that adjusts the flow rate of the wash water flowing through the second flow path with a stepping motor ;
A sanitary washing device comprising: a control unit that controls the operation of the flow rate adjusting valve.   The sanitary washing apparatus according to claim 1, wherein the control unit is configured to control the flow rate adjustment valve so that the valve opening degree is increased from a certain valve opening degree when starting the cleaning of the toilet.

Images